CN213795026U - Stator winding joint welding clamp of hydroelectric generating set - Google Patents

Abstract

A stator winding joint welding clamp of a hydroelectric generating set comprises a left clamp arm, a right clamp arm, a left transverse sleeve, a left transverse insulating screw, a left combined clamping block, a right transverse sleeve, a right transverse insulating screw and a right combined clamping block, wherein the left transverse sleeve is installed on the left clamp arm through a left vertical telescopic structure; the right transverse sleeve is arranged on the right clamping arm through a right vertical telescopic structure, a right transverse insulating screw rod is sleeved with the right transverse sleeve in a threaded connection mode and can be locked, and a right combined clamping block is arranged at the left end of the right transverse insulating screw rod; and the left combined clamping block and the right combined clamping block are opposite and aligned to form a clamping area therebetween. The clamping device has the advantages of larger clamping space, adjustable clamping stroke, simple clamping and electric shock avoidance, and can quickly replace and maintain the left combined clamping block and the right combined clamping block.

Description

Stator winding joint welding clamp of hydroelectric generating set

Technical Field

The utility model relates to a hydraulic turbine generator set stator equipment field specifically is a hydroelectric set stator winding connects welding jig.

Background

When the hydroelectric generating set is installed and maintained and a stator winding joint of a generator is welded, a welding machine coil and the stator winding joint need to be fixed and tightly contacted.

Conventionally, a common locking pliers is used for fixing a welding machine coil and a stator winding joint and welding the welding machine coil and the stator winding joint. However, when the stator winding joint area is large, 2-3 locking pliers may be needed for clamping. On one hand, the size, direction, position and operation environment of each stator winding joint are different, and the locking pliers constructed according to the traditional method have the defects of insufficient clamping space, insufficient clamping stroke, high clamping difficulty, poor clamping effect and the like; on the other hand, because the locking pliers are of a metal structure, potential safety hazards such as electric shock and burn exist in the welding process.

Disclosure of Invention

The utility model aims to provide a: aiming at the defects of the prior art, the welding clamp for the stator winding joint of the hydroelectric generating set is provided, which has the advantages of larger clamping space, adjustable clamping stroke, simple clamping, electric shock avoidance, quick replacement and maintenance of the left combined clamping block and the right combined clamping block.

The technical scheme adopted by the utility model is that, a hydroelectric set stator winding connects welding jig, including left arm lock and right arm lock, the welding jig still includes left transverse sleeve, left transverse insulating screw rod, left combination clamp splice, right transverse sleeve, right transverse insulating screw rod and right combination clamp splice, left transverse sleeve installs on the left arm lock through left vertical extending structure, left transverse insulating screw rod with the left transverse sleeve cup joint and can lock in the mode of threaded connection, the right-hand member tip of this left transverse insulating screw rod is provided with left combination clamp splice; the right transverse sleeve is mounted on the right clamping arm through a right vertical telescopic structure, the right transverse insulating screw rod is sleeved with the right transverse sleeve in a threaded connection mode and can be locked, and a right combined clamping block is arranged at the left end of the right transverse insulating screw rod; and the left combined clamping block and the right combined clamping block are opposite and aligned to form a clamping area therebetween.

The left vertical telescopic structure mainly comprises a left vertical sleeve, a left vertical insulating screw and a left vertical spare cap, the left vertical sleeve is vertically arranged, the bottom end part of the left vertical sleeve is fixedly connected with the upper end part of the left clamping arm, a blind hole with a downward hole opening is formed in the peripheral wall of the left transverse sleeve, the inner peripheral wall of the blind hole is provided with an internal thread matched with the external thread of the left vertical insulating screw, the lower end part of the left vertical insulating screw is sleeved in the left vertical sleeve in a threaded connection mode, the upper end part of the left vertical sleeve is sleeved in the blind hole in the peripheral wall of the left transverse sleeve in a threaded connection mode, the number of the left vertical spare caps is two, the left vertical spare caps are sleeved on the left vertical insulating screw, one left vertical spare cap is vertically screwed upwards until being tightly pressed against the lower end face of the blind hole of the left transverse sleeve, so as to limit the relative rotation between the upper end part of the left vertical insulating screw and the blind hole of the left transverse sleeve, the other left vertical spare cap is vertically screwed downwards until the left vertical spare cap is tightly pressed against the end surface of the top end of the left vertical sleeve, so that the relative rotation between the lower end part of the left vertical insulating screw rod and the left vertical sleeve is limited, and the fixing effect is achieved; the right vertical telescopic structure mainly comprises a right vertical sleeve, a right vertical insulating screw and a right vertical spare cap, the right vertical sleeve is vertically arranged, the bottom end part of the right vertical sleeve is fixedly connected with the upper end part of the right clamping arm, a blind hole with a downward hole opening is formed in the peripheral wall of the right transverse sleeve, the inner peripheral wall of the blind hole is provided with an internal thread matched with the external thread of the right vertical insulating screw, the lower end part of the right vertical insulating screw is sleeved in the right vertical sleeve in a threaded connection mode, the upper end part of the right vertical insulating screw is sleeved in the blind hole in the peripheral wall of the right transverse sleeve in a threaded connection mode, the number of the right vertical spare caps is two, the right vertical spare caps are sleeved on the right vertical insulating screw, one right vertical spare cap is vertically screwed upwards until being tightly propped against the lower end surface of the blind hole of the right transverse sleeve, so as to limit the relative rotation between the upper end part of the right vertical insulating screw and the blind hole of the right transverse sleeve, the other vertical spare cap is vertically screwed downwards until the right vertical spare cap is tightly pushed against the end face of the top end of the right vertical sleeve, so that the lower end of the right vertical insulating screw and the right vertical sleeve are limited to rotate relative to each other, and the right vertical spare cap plays a role in fixing.

The left combined clamping block mainly comprises a first epoxy insulation block, a first sawtooth block, a first insulation screw and a first insulation screw rod, wherein the first epoxy insulation block is square, a first mounting hole penetrating through the first epoxy insulation block is formed in the center of the right end face of the first epoxy insulation block, a first T-shaped mounting groove, a second T-shaped mounting groove, a third T-shaped mounting groove and a fourth T-shaped mounting groove are further formed in the right end face of the first epoxy insulation block, the first T-shaped mounting groove and the second T-shaped mounting groove are arranged in parallel and vertically, the first T-shaped mounting groove and the second T-shaped mounting groove are respectively and correspondingly located on the left side and the right side of the first mounting hole, the first mounting hole is symmetrically arranged by taking the first mounting hole as a symmetric center, and the upper end part of the first T-shaped mounting groove is of a blind structure, the lower end part vertically penetrates through the lower side edge on the right end face of the first epoxy insulation block downwards, the upper end part of the second T-shaped mounting groove vertically penetrates through the upper side edge on the right end face of the first epoxy insulation block upwards, the lower end part is of a blind structure, the third T-shaped mounting groove and the fourth T-shaped mounting groove are respectively and correspondingly positioned on the right upper side and the right lower side of the first mounting hole, the upper end part of the third T-shaped mounting groove vertically penetrates through the upper side edge on the right end face of the first epoxy insulation block upwards, the lower end part is close to the first mounting hole and is of a blind structure, the upper end part of the fourth T-shaped mounting groove is close to the first mounting hole and is of a blind structure, and the lower end part vertically penetrates through the lower side edge on the right end face of the first epoxy insulation block downwards; the two first sawtooth blocks are provided, the inner side surface of each first sawtooth block is provided with a left T-shaped mounting strip matched with the first T-shaped mounting groove and a lower T-shaped mounting strip matched with the fourth T-shaped mounting groove, the first sawtooth block can be vertically pushed upwards from the lower side edge of the right end surface of the first epoxy insulation block, so that the left T-shaped mounting strip and the lower T-shaped mounting strip of the first sawtooth block are correspondingly inserted into the first T-shaped mounting groove and the fourth T-shaped mounting groove respectively, the inner side surface of each second sawtooth block is provided with a right T-shaped mounting strip matched with the second T-shaped mounting groove and an upper T-shaped mounting strip matched with the third T-shaped mounting groove, and the first sawtooth block can be vertically pushed downwards from the upper side edge of the right end surface of the first epoxy insulation block, therefore, a right T-shaped mounting strip and an upper T-shaped mounting strip of a second first sawtooth block are correspondingly inserted into the second T-shaped mounting groove and the third T-shaped mounting groove respectively, two first insulating screws penetrate through the second first sawtooth block until being screwed into the first sawtooth block, and a second first insulating screw penetrates through the first sawtooth block until being screwed into the second first sawtooth block, so that the first sawtooth block and the second first sawtooth block are detachably fixed on the right end face of the first epoxy insulating block; the first insulating screw penetrates through a first mounting hole in the right end face of the first epoxy insulating block until the first insulating screw is screwed and fixed into a mounting blind hole formed in the right end face of the left transverse insulating screw in a threaded connection manner; the right combined clamping block mainly comprises a second epoxy insulation block, a second sawtooth block, a second insulation screw and a second insulation screw rod, the second epoxy insulation block is square, a second mounting hole penetrating through the second epoxy insulation block is formed in the center of the left end face of the second epoxy insulation block, a fifth T-shaped mounting groove, a sixth T-shaped mounting groove, a seventh T-shaped mounting groove and an eighth T-shaped mounting groove are further formed in the left end face of the second epoxy insulation block, the fifth T-shaped mounting groove and the sixth T-shaped mounting groove are arranged in parallel and vertically, the fifth T-shaped mounting groove and the sixth T-shaped mounting groove are respectively and correspondingly located on the left side and the right side of the second mounting hole, the second mounting hole is symmetrically arranged with the symmetric center, and the upper end part of the fifth T-shaped mounting groove is of a blind structure, the lower end part vertically penetrates through the lower side edge on the left end surface of the second epoxy insulation block downwards, the upper end part of the sixth T-shaped mounting groove vertically penetrates through the upper side edge on the left end surface of the second epoxy insulation block upwards, the lower end part is of a blind structure, the seventh T-shaped mounting groove and the eighth T-shaped mounting groove are respectively and correspondingly positioned on the right upper side and the right lower side of the second mounting hole, the upper end part of the seventh T-shaped mounting groove vertically penetrates through the upper side edge on the left end surface of the second epoxy insulation block upwards, the lower end part is close to the second mounting hole and is of a blind structure, the upper end part of the eighth T-shaped mounting groove is close to the second mounting hole and is of a blind structure, and the lower end part vertically penetrates through the lower side edge on the left end surface of the second epoxy insulation block downwards; the two second sawtooth blocks are provided, the inner side surface of the first second sawtooth block is provided with a left T-shaped mounting strip matched with the fifth T-shaped mounting groove and a lower T-shaped mounting strip matched with the eighth T-shaped mounting groove, the first second sawtooth block can be vertically pushed in from the lower side edge of the left end surface of the second epoxy insulation block upwards, so that the left T-shaped mounting strip and the lower T-shaped mounting strip of the first second sawtooth block are correspondingly inserted into the fifth T-shaped mounting groove and the eighth T-shaped mounting groove respectively, the inner side surface of the second sawtooth block is provided with a right T-shaped mounting strip matched with the sixth T-shaped mounting groove and an upper T-shaped mounting strip matched with the seventh T-shaped mounting groove, and the second sawtooth block can be vertically pushed in from the upper side edge of the left end surface of the second epoxy insulation block downwards, so that the right T-shaped mounting strip and the upper T-shaped mounting strip of a second sawtooth block are correspondingly inserted into the sixth T-shaped mounting groove and the seventh T-shaped mounting groove respectively, two second insulating screws are provided, a first second insulating screw penetrates through the second sawtooth block until being screwed into the first second sawtooth block, and a second insulating screw penetrates through the first second sawtooth block until being screwed into the second sawtooth block, so that the first second sawtooth block and the second sawtooth block are detachably fixed on the left end face of the second epoxy insulating block; and the second insulating screw rod penetrates through a second mounting hole on the left end surface of the second epoxy insulating block until the second insulating screw rod is screwed and fixed into a mounting blind hole formed in the left end surface of the right transverse insulating screw rod in a threaded connection manner.

Further, first sawtooth block is "L" type, is provided with multirow sawtooth structure on the lateral surface, and first sawtooth block forms "returning" style of calligraphy structure when first sawtooth block cooperatees with the first sawtooth block of second piece, second sawtooth block is "L" type, is provided with multirow sawtooth structure on the lateral surface, and first sawtooth block forms "returning" style of calligraphy structure when first sawtooth block cooperatees with the first sawtooth block of second piece.

Welding jig is still including left slide caliper rule and right slide caliper rule, left side slide caliper rule transverse arrangement, right-hand member tip welded connection be in left side transverse sleeve left end tip, right side slide caliper rule transverse arrangement, left end tip welded connection be in right side transverse sleeve right-hand member tip.

The utility model has the advantages that:

1. the utility model discloses a left side transverse sleeve, left side vertical extending structure, left side transverse insulation screw rod and the cooperation of left combination clamp splice, right side transverse sleeve, right side vertical extending structure, right side transverse insulation screw rod and the cooperation of right combination clamp splice, in addition, left side combination clamp splice and the cooperation of right combination clamp splice, thereby adjust the relative position between left side transverse insulation screw rod and the right transverse insulation screw rod, thereby enlarge or reduce the centre gripping space between left side combination clamp splice and the right combination clamp splice, adjust the centre gripping stroke, in order to reach the centre gripping simple, the convenient purpose of centre gripping.

2. The utility model discloses in, can tentatively adjust welding jig butt welder coil and stator winding joint through adjusting left lateral insulation screw rod, right lateral insulation screw rod and fix, the grip function of cooperation locking pliers itself makes welding jig's centre gripping effect better, and is more stable.

3. The utility model discloses in, adopt left lateral insulation screw rod and the right lateral insulation screw rod that electrical insulation material made to and the first epoxy collets and the second epoxy collets that adopt electrical insulation material to make, improve welding jig's security.

4. The utility model discloses in, left side combination clamp splice mainly comprises first epoxy insulating block, first sawtooth piece, first insulation screw and first insulation screw, right side combination clamp splice mainly comprises second epoxy insulating block, second sawtooth piece, second insulation screw and second insulation screw, and first epoxy insulating block can be dismantled with first sawtooth piece and link together, and second epoxy insulating block can be dismantled with second sawtooth piece and link together to reach the purpose that only needs to change the second sawtooth piece after first sawtooth piece and/or the wearing and tearing after the wearing and tearing behind the wearing and tearing, greatly reduced the cost of manufacture.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the left modular clamp block of fig. 1.

Fig. 3 is a schematic view of the first epoxy insulation block of fig. 2.

Fig. 4 is a schematic view of the right modular clamp block of fig. 1.

Fig. 5 is a schematic view of the second epoxy insulation block of fig. 4.

The reference numbers in the figures mean: 1-left clamp arm; 2-right clamping arm; 3-left transverse sleeve; 4, a left vertical telescopic structure; 401 — left vertical sleeve; 402-left vertical insulated screw; 403-left vertical spare cap; 5-left transverse insulating screw; 6-left combined clamping block; 601-a first epoxy insulation block; 6011-a first T-shaped installation groove; 6012-a second T-shaped installation groove; 6013-a third T-shaped mounting groove; 6014-a fourth T-shaped mounting groove; 602 — a first serration block; 603 — first insulating screw; 604-a first insulating screw; 605 — a first mounting hole; 7-right lateral sleeve; 8-right vertical telescopic structure; 801-right vertical sleeve; 802-right vertical insulated screw; 803-right vertical spare cap; 9-right transverse insulating screw; 10-right combined clamping block; 1001 — second epoxy insulation block; 10011-fifth "T" shaped mounting groove; 10012-sixth "T" shaped mounting groove; 10013-seventh "T" shaped mounting groove; 10014-eighth "T" shaped mounting groove; 1002-a second sawtooth block; 1003 — second insulating screw; 1004-second insulating screw; 1005-second mounting hole; 11-small forceps handle; 12-big clamp handle; 13-a brace bar; 14-a release handle; 15-a tension spring; 16, a clamp body; 17-adjusting the nut; 18-left caliper; 19-right caliper.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should also be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 to 5: the utility model relates to a hydroelectric set stator winding connects welding jig, including left arm lock 1, right arm lock 2, little tong handle 11, tong handle 12, vaulting pole 13, throw off handle 14, extension spring 15, pincers body 16 and adjusting nut 17. The left clamping arm 1, the right clamping arm 2, the small clamp handle 11, the large clamp handle 12, the support rod 13, the disengaging handle 14, the tension spring 15, the clamp body 16 and the adjusting nut 17 are all conventional components of the existing common large-force clamp, and under the action of the tension spring 15 and the adjusting nut 17, rough adjustment for clamping a to-be-clamped piece can be achieved. For example: stanlty 84-370/371-23, Stanlty, USA, or cr-mo vise, model OEM/CRMO.

The welding fixture further comprises a left transverse sleeve 3, a left transverse insulating screw rod 5, a left combined clamping block 6, a right transverse sleeve 7, a right transverse insulating screw rod 9 and a right combined clamping block 10. Wherein, the peripheral wall of the left transverse insulating screw 5 is provided with an external thread. The left transverse sleeve 3 is of a cylindrical structure and is provided with a through hole structure which is penetrated through along the transverse direction, and the inner peripheral wall of the left transverse sleeve is provided with an internal thread matched with the external thread of the left transverse insulating screw 5. And an external thread is arranged on the peripheral wall of the right transverse insulating screw 9. The right transverse sleeve 7 is of a cylindrical structure and is provided with a through hole structure which is penetrated along the transverse direction, and the inner peripheral wall of the right transverse sleeve is provided with an internal thread matched with the external thread of the right transverse insulating screw 9.

The left transverse sleeve 3 is installed on the left clamping arm 1 through the left vertical telescopic structure 4, and the left vertical telescopic structure 4 is adjusted to enable the left transverse sleeve 3 to move up and down along the vertical direction, so that the left clamping arm 1 is prolonged equivalently.

The left transverse insulating screw rod 5 is in threaded connection with the left transverse sleeve 3 in a sleeved mode and can be locked, and a left combined clamping block 6 is arranged at the right end of the left transverse insulating screw rod 5. By rotating the left lateral insulated screw 5, the left lateral insulated screw 5 can move left and right (laterally) along the length direction of the left lateral sleeve 3 based on the left lateral sleeve 3 as a guide. Meanwhile, the left combined clamping block 6 can be driven to move left and right along the length direction (transverse direction) of the left transverse sleeve 3 synchronously. A spare cap is sleeved on a part of the left transverse insulating screw 5, which is located between the left transverse sleeve 3 and the left combined clamping block 6, the spare cap and the left transverse insulating screw 5 are in threaded fit with each other, the spare cap is rotated to enable the spare cap to approach to one side of the left transverse sleeve 3 until the spare cap abuts against the right end face of the left transverse sleeve 3, so that the left transverse insulating screw 5 is limited from rotating relative to the left transverse sleeve 3, and the left transverse insulating screw 5 is limited from moving left and right along the length direction of the left transverse sleeve 3, so that the left transverse insulating screw 5 is locked.

The right transverse sleeve 7 is installed on the right clamping arm 2 through the right vertical telescopic structure 8, and the right vertical telescopic structure 8 is adjusted to enable the right transverse sleeve 7 to move up and down along the vertical direction, so that the right clamping arm 2 is prolonged equivalently.

The right transverse insulating screw 9 is in threaded connection with the right transverse sleeve 7 in a sleeved mode and can be locked, and a right combined clamping block 10 is arranged at the end of the left end of the right transverse insulating screw 9. By rotating the right lateral insulating screw 9, the right lateral insulating screw 9 can move left and right along the length direction (lateral direction) of the right lateral sleeve 7 with the right lateral sleeve 7 as a guide. Meanwhile, the right combined clamping block 10 can be driven to move left and right along the length direction (transverse direction) of the right transverse sleeve 7 synchronously. A spare cap is sleeved on a part of the right transverse insulating screw 9, which is located between the right transverse sleeve 7 and the right combined clamping block 10, the spare cap and the right transverse insulating screw 9 are in threaded fit with each other, the spare cap is rotated to enable the spare cap to approach to one side of the right transverse sleeve 7 until the spare cap abuts against the left end face of the right transverse sleeve 7, so that the right transverse insulating screw 9 is limited to rotate relative to the right transverse sleeve 7, and the right transverse insulating screw 9 is limited to move left and right along the length direction of the right transverse sleeve 7, so that the right transverse insulating screw 9 is locked.

And the left combined clamping block 6 and the right combined clamping block 10 are opposite and aligned to form a clamping area therebetween. The relative position between the left transverse insulating screw 5 and the right transverse insulating screw 9 is adjusted, so that the clamping space between the left combined clamping block 6 and the right combined clamping block 10 is enlarged or reduced, the clamping stroke is adjusted (mainly embodied in prolonging the left clamping arm 1 and the right clamping arm 2), and the purposes of simple clamping and convenient clamping are achieved.

In addition, the welding fixture can be preliminarily adjusted to fix the coil of the welding machine and the joint of the stator winding by adjusting the left transverse insulating screw 5 and the right transverse insulating screw 9, and the clamping function of the locking pliers is matched (rough adjustment of a clamping piece to be clamped can be realized under the action of the tension spring 15 and the adjusting nut 17), so that the clamping effect of the welding fixture is better and more stable.

The left vertical telescopic structure 4 mainly comprises a left vertical sleeve 401, a left vertical insulating screw 402 and a left vertical spare cap 403,

the left vertical sleeve 401 is vertically arranged, and the end part of the bottom end of the left vertical sleeve is fixedly connected with the end part of the upper end of the left clamping arm 1. For example a welded connection.

And a blind hole with a downward hole opening is formed in the peripheral wall of the left transverse sleeve 3. Further, the blind hole is located at the middle position of the left lateral sleeve 3. The inner peripheral wall of the blind hole is provided as an internal thread matching the external thread of the left vertical insulating screw 402,

the lower end part of the left vertical insulating screw 402 is sleeved in the left vertical sleeve 401 in a threaded connection mode, the upper end part of the left vertical insulating screw 402 is sleeved in a blind hole in the peripheral wall of the left transverse sleeve 3 in a threaded connection mode, when the stroke of the welding fixture is adjusted, the relative position (extension or shortening) of the left vertical insulating screw 402 and the left vertical sleeve 401 is firstly adjusted, then an operator places the left transverse sleeve 3 at the position of a tool to be clamped and keeps the left transverse sleeve fixed, and then rotates the left vertical insulating screw 402 in the opposite direction to enable the left vertical insulating screw 402 to vertically move upwards, and the upper end part of the left vertical insulating screw 402 is screwed into the blind hole of the left transverse sleeve 3, so that the clamping stroke of the welding fixture is adjusted.

The left vertical spare caps 403 are sleeved on the left vertical insulating screw 402, one of the left vertical spare caps 403 is vertically screwed upwards until the left vertical spare cap is tightly pressed on the lower end face of the blind hole of the left transverse sleeve 3 so as to limit the relative rotation between the upper end portion of the left vertical insulating screw 402 and the blind hole of the left transverse sleeve 3, so as to play a role in fixing, and the other of the left vertical spare caps 403 is vertically screwed downwards until the left vertical spare cap is tightly pressed on the top end face of the left vertical sleeve 401 so as to limit the relative rotation between the lower end portion of the left vertical insulating screw 402 and the left vertical sleeve 401, so as to play a role in fixing.

The right vertical telescopic structure 8 mainly comprises a right vertical sleeve 801, a right vertical insulating screw 802 and a right vertical spare cap 803,

the right vertical sleeve 801 is vertically arranged, the bottom end part is fixedly connected with the upper end part of the right clamping arm 2,

a blind hole with a downward hole is formed on the outer peripheral wall of the right transverse sleeve 7, the inner peripheral wall of the blind hole is provided with an internal thread matched with the external thread of the right vertical insulating screw 802,

the lower end part of the right vertical insulating screw 802 is sleeved in the right vertical sleeve 801 in a threaded connection mode, the upper end part of the right vertical insulating screw 802 is sleeved in a blind hole in the peripheral wall of the right transverse sleeve 7 in a threaded connection mode, when the stroke of the welding fixture is adjusted, the relative position (extension or shortening) of the right vertical insulating screw 802 and the right vertical sleeve 801 is firstly adjusted, then an operator places the right transverse sleeve 7 at the position of a tool to be clamped and keeps the right transverse sleeve immovable, and then rotates the right vertical insulating screw 802 in the opposite direction to enable the right vertical insulating screw 802 to vertically move upwards, and the upper end part of the right vertical insulating screw 802 is screwed into the blind hole of the right transverse sleeve 7 to achieve adjustment of the clamping stroke of the welding fixture.

The right vertical spare caps 803 are two, are sleeved on the right vertical insulating screw 802, and one of the right vertical spare caps 803 is vertically screwed upwards until the top is tightly pressed on the lower end face of the blind hole of the right transverse sleeve 7 so as to limit the relative rotation between the upper end part of the right vertical insulating screw 802 and the blind hole of the right transverse sleeve 7, so as to play a role in fixing, and the other of the right vertical spare caps 803 is vertically screwed downwards until the top is tightly pressed on the top end face of the right vertical sleeve 801 so as to limit the relative rotation between the lower end part of the right vertical insulating screw 802 and the right vertical sleeve 801, so as to play a role in fixing.

The left combined clamping block 6 mainly comprises a first epoxy insulation block 601, a first sawtooth block 602, a first insulation screw 603 and a first insulation screw 604,

the first epoxy insulation block 601 is square, a first mounting hole 605 penetrating through the first epoxy insulation block 601 is formed in the center of the right end face of the first epoxy insulation block 601, and the first insulation screw 604 penetrates through the first mounting hole 605 on the right end face of the first epoxy insulation block 601 until being screwed and fixed into a mounting blind hole formed in the right end face of the left transverse insulation screw 5 in a threaded connection manner.

A first T-shaped mounting groove 6011, a second T-shaped mounting groove 6012, a third T-shaped mounting groove 6013, and a fourth T-shaped mounting groove 6014 are further disposed on the right end surface of the first epoxy insulation block 601,

the first T-shaped mounting groove 6011 and the second T-shaped mounting groove 6012 are arranged in parallel and vertically, the first T-shaped mounting groove 6011 and the second T-shaped mounting groove 6012 are respectively and correspondingly located on the left side and the right side of the first mounting hole 605, the first mounting hole 605 is symmetrically arranged with the symmetric center, the upper end of the first T-shaped mounting groove 6011 is of a blind structure, the lower end vertically penetrates through the lower side of the right end of the first epoxy insulation block 601 downwards, the upper end of the second T-shaped mounting groove 6012 vertically penetrates through the upper side of the right end of the first epoxy insulation block 601 upwards, the lower end is of a blind structure, the third T-shaped mounting groove 6013 and the fourth T-shaped mounting groove 6014 are respectively and correspondingly located on the right upper side and the right lower side of the first mounting hole 605, and the upper end of the third T-shaped mounting groove 6013 vertically penetrates through the first epoxy insulation block 601 upwards The upper end of the fourth T-shaped mounting groove 6014 is close to the first mounting hole 605 and is of a blind structure, and the lower end of the fourth T-shaped mounting groove 6014 vertically penetrates through the lower side of the right end of the first epoxy insulation block 601 downwards.

The first sawtooth blocks 602 are two, a left T-shaped mounting bar matched with the first T-shaped mounting groove 6011 and a lower T-shaped mounting bar matched with the fourth T-shaped mounting groove 6014 are arranged on the inner side surface of the first sawtooth block 602, the first sawtooth block 602 can be vertically pushed upwards from the lower side edge of the right end surface of the first epoxy insulation block 601, so that the left T-shaped mounting bar and the lower T-shaped mounting bar of the first sawtooth block 602 are correspondingly inserted into the first T-shaped mounting groove 6011 and the fourth T-shaped mounting groove 6014 respectively, a right T-shaped mounting bar matched with the second T-shaped mounting groove 6012 and an upper T-shaped mounting bar matched with the third T-shaped mounting groove 6013 are arranged on the inner side surface of the second sawtooth block 602, and the second sawtooth block 602 can be vertically pushed downwards from the right side edge of the upper side surface of the first epoxy insulation block 601, therefore, a right T-shaped mounting bar and an upper T-shaped mounting bar of the second first sawtooth block 602 are correspondingly inserted into the second T-shaped mounting groove 6012 and the third T-shaped mounting groove 6013, respectively, two first insulating screws 603 are provided, the first insulating screws 603 pass through the second first sawtooth block 602 and are screwed into the first sawtooth block 602, and the second first insulating screws 603 pass through the first sawtooth block 602 and are screwed into the second first sawtooth block 602, so that the first sawtooth block 602 and the second first sawtooth block 602 are detachably fixed on the right end surface of the first epoxy insulating block 601.

The right combined clamping block 10 mainly comprises a second epoxy insulation block 1001, a second sawtooth block 1002, a second insulation screw 1003 and a second insulation screw 1004,

the second epoxy insulation block 1001 is square, a second mounting hole 1005 penetrating through the second epoxy insulation block 1001 is formed in the center of the left end face of the second epoxy insulation block 1001, and the second insulation screw 1004 penetrates through the second mounting hole 1005 on the left end face of the second epoxy insulation block 1001 until being screwed and fixed in a mounting blind hole formed in the left end face of the right transverse insulation screw 9 in a threaded manner.

A fifth T-shaped mounting groove 10011, a sixth T-shaped mounting groove 10012, a seventh T-shaped mounting groove 10013 and an eighth T-shaped mounting groove 10014 are further disposed on the left end surface of the second epoxy insulation block 1001, the fifth T-shaped mounting groove 10011 and the sixth T-shaped mounting groove 10012 are parallel and vertically disposed, the fifth T-shaped mounting groove 10011 and the sixth T-shaped mounting groove 10012 are respectively and correspondingly disposed on the left side and the right side of the second mounting hole 1005, the second mounting hole is symmetrically disposed with the center of symmetry, the upper end of the fifth T-shaped mounting groove 10011 is a blind structure, the lower end vertically penetrates through the lower side of the left end surface of the second epoxy insulation block 1001, the upper end of the sixth T-shaped mounting groove 10012 vertically penetrates through the upper side of the left end surface of the second epoxy insulation block 1001, the lower end portions of the seventh "T" shaped mounting groove 10013 and the eighth "T" shaped mounting groove 10014 are in a blind structure, and the seventh "T" shaped mounting groove 10013 and the eighth "T" shaped mounting groove 10014 are respectively and correspondingly located on the right upper side and the right lower side of the second mounting hole 1005, and the upper end portion of the seventh "T" shaped mounting groove 10013 vertically penetrates through the upper side edge on the left end surface of the second epoxy insulation block 1001 upward, the lower end portion is close to the second mounting hole 1005 and is in a blind structure, the upper end portion of the eighth "T" shaped mounting groove 10014 is close to the second mounting hole 1005 and is in a blind structure, and the lower end portion vertically penetrates through the lower side edge on the left end surface of the second epoxy insulation block 1001 downward.

The number of the second saw-toothed blocks 1002 is two, a left T-shaped mounting bar matched with the fifth T-shaped mounting groove 10011 and a lower T-shaped mounting bar matched with the eighth T-shaped mounting groove 10014 are disposed on the inner side surface of the first second saw-toothed block 1002, the first second saw-toothed block 1002 can be vertically pushed upwards from the lower side edge of the left end surface of the second epoxy insulation block 1001, so that the left T-shaped mounting bar and the lower T-shaped mounting bar of the first second saw-toothed block 1002 are correspondingly inserted into the fifth T-shaped mounting groove 10011 and the eighth T-shaped mounting groove 10014, respectively, a right T-shaped mounting bar matched with the sixth T-shaped mounting groove 10012 and an upper T-shaped mounting bar matched with the seventh T-shaped mounting groove 10013 are disposed on the inner side surface of the second saw-toothed block 1002, and the second saw-toothed block 1002 can be vertically pushed downwards from the upper side edge of the left end surface of the second epoxy insulation block 1001, therefore, the right T-shaped mounting bar and the upper T-shaped mounting bar of the second saw tooth block 1002 are correspondingly inserted into the sixth T-shaped mounting groove 10012 and the seventh T-shaped mounting groove 10013, respectively, two second insulating screws 1003 are provided, the first insulating screw 1003 passes through the second saw tooth block 1002 until being screwed into the first saw tooth block 1002, and the second insulating screw 1003 passes through the first saw tooth block 1002 until being screwed into the second saw tooth block 1002, so that the first saw tooth block 1002 and the second saw tooth block 1002 are detachably fixed on the left end surface of the second epoxy insulating block 1001.

The first epoxy insulation block 601 and the first sawtooth block 602 can be detachably connected together, and the second epoxy insulation block 1001 and the second sawtooth block 1002 can be detachably connected together, so that the purpose that only the worn first sawtooth block 602 and/or the worn second sawtooth block 1002 need to be replaced is achieved, and the manufacturing cost is greatly reduced.

Further, first sawtooth block 602 is "L" type, is provided with the multirow sawtooth structure on the lateral surface, and first sawtooth block 602 forms "returning" style of calligraphy structure when coordinating with first sawtooth block 602 of second block, second sawtooth block 1002 is "L" type, is provided with the multirow sawtooth structure on the lateral surface, and first sawtooth block 602 forms "returning" style of calligraphy structure when coordinating with first sawtooth block 602 of second block.

Welding jig is still including left slide caliper rule 18 and right slide caliper rule 19, left side slide caliper rule 18 transverse arrangement, right-hand member tip welded connection be in 3 left end tip of left side transverse sleeve, 19 transverse arrangement of right side slide caliper rule, left end tip welded connection be in 7 right-hand member tip of right side transverse sleeve. By observing the position of the left transverse insulating screw 5 relative to the left caliper 18 and the position of the right transverse insulating screw 9 relative to the right caliper 19, the welding fixture can be accurately adjusted, and the balance between the left combined clamping block 6 and the right combined clamping block 10 can be ensured.

Through the structural design, the left combined clamping block 6 is matched with the left transverse insulating screw 5, the right combined clamping block 10 is matched with the right transverse insulating screw 9, and the welding clamp has the capability of resisting 110V voltage without breakdown and can bear the high temperature of 500 ℃ without deformation and damage.

The working process is as follows: firstly, estimating the required stroke of the clamping arm through the experience of an operator, and adjusting the strokes of a left clamping arm 1 and a right clamping arm 2 through a left vertical telescopic structure 4 and a right vertical telescopic structure 8; secondly, placing a to-be-clamped piece between the left combined clamping block 6 and the right combined clamping block 10 of the welding fixture, or moving the welding fixture to enable the left combined clamping block 6 and the right combined clamping block 10 to be positioned at two sides of the to-be-clamped piece; thirdly, roughly adjusting the clamped piece to be clamped under the action of a tension spring 15 and an adjusting nut 17; and fourthly, adjusting the left transverse insulating screw 5 and the right transverse insulating screw 9, so as to push a clamping area between the left combined clamping block 6 and the right combined clamping block 10, and further realizing stable clamping.

The above detailed description is only for the purpose of illustration, but not for the purpose of limitation. Although the present invention has been described in detail with reference to the specific embodiments thereof, it will be understood by those skilled in the art that: the above-mentioned specific technical solutions can still be modified, or some technical features thereof can be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the present invention in its essence.

Claims (5)

1. The utility model provides a hydroelectric set stator winding connects welding jig, includes left arm lock and right arm lock, its characterized in that: the welding fixture also comprises a left transverse sleeve, a left transverse insulating screw, a left combined clamping block, a right transverse sleeve, a right transverse insulating screw and a right combined clamping block,

the left transverse sleeve is arranged on the left clamping arm through a left vertical telescopic structure,

the left transverse insulating screw is sleeved with the left transverse sleeve in a threaded connection mode and can be locked, and a left combined clamping block is arranged at the right end of the left transverse insulating screw;

the right transverse sleeve is arranged on the right clamping arm through a right vertical telescopic structure,

the right transverse insulating screw is sleeved with the right transverse sleeve in a threaded connection mode and can be locked, and a right combined clamping block is arranged at the end part of the left end of the right transverse insulating screw;

the left combined clamping block and the right combined clamping block are opposite and aligned, and a clamping area is formed between the left combined clamping block and the right combined clamping block;

wherein the left combined clamping block mainly comprises a first epoxy insulation block, a first sawtooth block, a first insulation screw and a first insulation screw rod,

the first epoxy insulating block is square, a first mounting hole penetrating through the first epoxy insulating block is arranged in the center of the right end face of the first epoxy insulating block,

the right end surface of the first epoxy insulation block is also provided with a first T-shaped mounting groove, a second T-shaped mounting groove, a third T-shaped mounting groove and a fourth T-shaped mounting groove,

the first T-shaped mounting groove and the second T-shaped mounting groove are mutually parallel and vertically arranged, the first T-shaped mounting groove and the second T-shaped mounting groove are respectively and correspondingly positioned at the left side and the right side of the first mounting hole, the first mounting hole is symmetrically arranged by taking the first mounting hole as a symmetric center, the upper end part of the first T-shaped mounting groove is of a blind structure, the lower end part vertically penetrates through the lower side edge on the right end face of the first epoxy insulation block downwards, the upper end part of the second T-shaped mounting groove vertically penetrates through the upper side edge on the right end face of the first epoxy insulation block upwards, and the lower end part is of a blind structure,

the third T-shaped mounting groove and the fourth T-shaped mounting groove are respectively and correspondingly positioned on the right upper side and the right lower side of the first mounting hole, the upper end part of the third T-shaped mounting groove vertically penetrates through the upper side edge on the right end face of the first epoxy insulation block upwards, the lower end part of the third T-shaped mounting groove is close to the first mounting hole and is of a blind structure, the upper end part of the fourth T-shaped mounting groove is close to the first mounting hole and is of a blind structure, and the lower end part vertically penetrates through the lower side edge on the right end face of the first epoxy insulation block downwards;

the two first sawtooth blocks are provided, the inner side surface of each first sawtooth block is provided with a left T-shaped mounting strip matched with the first T-shaped mounting groove and a lower T-shaped mounting strip matched with the fourth T-shaped mounting groove, the first sawtooth block can be vertically pushed upwards from the lower side edge of the right end surface of the first epoxy insulation block, so that the left T-shaped mounting strip and the lower T-shaped mounting strip of the first sawtooth block are respectively and correspondingly inserted into the first T-shaped mounting groove and the fourth T-shaped mounting groove,

a right T-shaped mounting strip matched with the second T-shaped mounting groove and an upper T-shaped mounting strip matched with the third T-shaped mounting groove are arranged on the inner side surface of the second first sawtooth block, the second first sawtooth block can be vertically pushed downwards from the upper side edge of the right end surface of the first epoxy insulation block, so that the right T-shaped mounting strip and the upper T-shaped mounting strip of the second first sawtooth block are respectively and correspondingly inserted into the second T-shaped mounting groove and the third T-shaped mounting groove,

the number of the first insulating screws is two, the first insulating screws penetrate through the second first sawtooth block until being screwed into the first sawtooth block, and the second insulating screws penetrate through the first sawtooth block until being screwed into the second first sawtooth block, so that the first sawtooth block and the second first sawtooth block are detachably fixed on the right end face of the first epoxy insulating block;

the first insulating screw penetrates through a first mounting hole in the right end face of the first epoxy insulating block until the first insulating screw is screwed and fixed into a mounting blind hole formed in the right end face of the left transverse insulating screw in a threaded connection manner;

the right combined clamping block mainly comprises a second epoxy insulation block, a second sawtooth block, a second insulation screw and a second insulation screw rod,

the second epoxy insulation block is in a square shape, a second mounting hole penetrating through the second epoxy insulation block is arranged at the center of the left end face of the second epoxy insulation block,

a fifth T-shaped mounting groove, a sixth T-shaped mounting groove, a seventh T-shaped mounting groove and an eighth T-shaped mounting groove are also formed in the left end surface of the second epoxy insulation block,

the fifth T-shaped mounting groove and the sixth T-shaped mounting groove are mutually parallel and vertically arranged, the fifth T-shaped mounting groove and the sixth T-shaped mounting groove are respectively correspondingly positioned at the left side and the right side of the second mounting hole and symmetrically arranged by taking the second mounting hole as a symmetrical center, the upper end part of the fifth T-shaped mounting groove is of a blind structure, the lower end part vertically penetrates through the lower side edge on the left end surface of the second epoxy insulation block downwards, the upper end part of the sixth T-shaped mounting groove vertically penetrates through the upper side edge on the left end surface of the second epoxy insulation block upwards, and the lower end part is of a blind structure,

the seventh T-shaped mounting groove and the eighth T-shaped mounting groove are respectively and correspondingly positioned on the right upper side and the right lower side of the second mounting hole, the upper end part of the seventh T-shaped mounting groove vertically penetrates through the upper side edge on the left end surface of the second epoxy insulation block upwards, the lower end part of the seventh T-shaped mounting groove is close to the second mounting hole and is of a blind structure, the upper end part of the eighth T-shaped mounting groove is close to the second mounting hole and is of a blind structure, and the lower end part of the eighth T-shaped mounting groove vertically penetrates through the lower side edge on the left end surface of the second epoxy insulation block downwards;

the two second sawtooth blocks are arranged, the inner side surface of the first second sawtooth block is provided with a left T-shaped mounting strip matched with the fifth T-shaped mounting groove and a lower T-shaped mounting strip matched with the eighth T-shaped mounting groove, the first second sawtooth block can be vertically pushed upwards from the lower side edge of the left end surface of the second epoxy insulation block, so that the left T-shaped mounting strip and the lower T-shaped mounting strip of the first second sawtooth block are correspondingly inserted into the fifth T-shaped mounting groove and the eighth T-shaped mounting groove respectively,

a right T-shaped mounting strip matched with the sixth T-shaped mounting groove and an upper T-shaped mounting strip matched with the seventh T-shaped mounting groove are arranged on the inner side surface of the second sawtooth block, the second sawtooth block can be vertically pushed in from the upper side edge of the left end surface of the second epoxy insulation block downwards, so that the right T-shaped mounting strip and the upper T-shaped mounting strip of the second sawtooth block are correspondingly inserted into the sixth T-shaped mounting groove and the seventh T-shaped mounting groove respectively,

the number of the second insulating screws is two, the first insulating screws penetrate through the second sawtooth block until being screwed into the first second sawtooth block, and the second insulating screws penetrate through the first second sawtooth block until being screwed into the second sawtooth block, so that the first second sawtooth block and the second sawtooth block are detachably fixed on the left end face of the second epoxy insulating block;

and the second insulating screw rod penetrates through a second mounting hole on the left end surface of the second epoxy insulating block until the second insulating screw rod is screwed and fixed into a mounting blind hole formed in the left end surface of the right transverse insulating screw rod in a threaded connection manner.

2. The stator winding joint welding jig of the hydroelectric generating set according to claim 1, characterized in that:

the left vertical telescopic structure mainly comprises a left vertical sleeve, a left vertical insulating screw and a left vertical spare cap,

the left vertical sleeve is vertically arranged, the end part of the bottom end is fixedly connected with the end part of the upper end of the left clamping arm,

a blind hole with a downward hole is formed on the outer peripheral wall of the left transverse sleeve, the inner peripheral wall of the blind hole is provided with an internal thread matched with the external thread of the left vertical insulating screw rod,

the lower end part of the left vertical insulating screw rod is sleeved in the left vertical sleeve in a threaded connection mode, the upper end part is sleeved in a blind hole in the peripheral wall of the left transverse sleeve in a threaded connection mode,

the left vertical spare caps are two and are sleeved on the left vertical insulating screw rod, one of the left vertical spare caps is vertically screwed upwards until the left vertical spare cap is tightly pressed on the lower end face of the blind hole of the left transverse sleeve to limit relative rotation between the upper end portion of the left vertical insulating screw rod and the blind hole of the left transverse sleeve so as to play a role in fixing, and the other of the left vertical spare caps is vertically screwed downwards until the left vertical spare cap is tightly pressed on the top end face of the left vertical sleeve so as to limit relative rotation between the lower end portion of the left vertical insulating screw rod and the left vertical sleeve so as to play a role in fixing.

3. The stator winding joint welding jig of the hydroelectric generating set according to claim 2, characterized in that:

the right vertical telescopic structure mainly comprises a right vertical sleeve, a right vertical insulating screw and a right vertical spare cap,

the right vertical sleeve is vertically arranged, the end part of the bottom end is fixedly connected with the end part of the upper end of the right clamping arm,

a blind hole with a downward hole is formed on the outer peripheral wall of the right transverse sleeve, the inner peripheral wall of the blind hole is provided with an internal thread matched with the external thread of the right vertical insulating screw rod,

the lower end part of the right vertical insulating screw rod is sleeved in the right vertical sleeve in a threaded connection mode, the upper end part of the right vertical insulating screw rod is sleeved in a blind hole in the peripheral wall of the right transverse sleeve in a threaded connection mode,

the right vertical spare caps are two and are sleeved on the right vertical insulating screw rod, one vertical spare cap on the right side is vertically screwed upwards until the right vertical spare cap is tightly pressed on the lower end face of the blind hole of the right transverse sleeve to limit relative rotation between the upper end portion of the right vertical insulating screw rod and the blind hole of the right transverse sleeve so as to play a role in fixing, and the other vertical spare cap on the right side is vertically screwed downwards until the right vertical spare cap is tightly pressed on the top end face of the right vertical sleeve so as to limit relative rotation between the lower end portion of the right vertical insulating screw rod and the right vertical sleeve so as to play a role in fixing.

4. The stator winding joint welding jig of the hydroelectric generating set according to claim 2, characterized in that:

the first sawtooth block is L-shaped, a plurality of rows of sawtooth structures are arranged on the outer side surface, the first sawtooth block and the second sawtooth block form a structure shaped like a Chinese character 'hui',

the second sawtooth block is L-shaped, a plurality of rows of sawtooth structures are arranged on the outer side surface, and a first sawtooth block and a second sawtooth block form a structure shaped like a Chinese character 'hui' when matched.

5. The stator winding joint welding jig of the hydroelectric generating set according to claim 2, characterized in that:

the welding fixture also comprises a left caliper and a right caliper,

the left side slide caliper rule transverse arrangement, right-hand member tip welded connection be in left side transverse sleeve left end tip, right side slide caliper rule transverse arrangement, left end tip welded connection be in right side transverse sleeve right-hand member tip.

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