CN218946969U

CN218946969U - Clamping tool

Info

Publication number: CN218946969U
Application number: CN202223058869.0U
Authority: CN
Inventors: 卢志杰; 朱活生; 吴志辉
Original assignee: Guangzhou Diesel Engine Factory Co ltd
Current assignee: Guangzhou Diesel Engine Factory Co ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-05-02
Anticipated expiration: 2032-11-17

Abstract

The utility model discloses a clamping tool which comprises a base, a clamping assembly, a connecting rod and a fixing seat, wherein the base is provided with at least two guide grooves: each guide groove is internally provided with a clamping assembly, each clamping assembly comprises a first clamping block and a second clamping block, and the first clamping blocks and the second clamping blocks slide in the guide grooves to clamp or loosen the special-shaped parts; the connecting rod is used for driving the first clamping block to slide in the guide groove; the fixing seat is fixedly connected with the base and used for radially positioning the connecting rod. The clamping tool is used for clamping the special-shaped part through a plurality of end points of the special-shaped part by a plurality of groups of clamping assemblies. The clamping component slides in the guide groove to adjust the position so as to adapt to the clamping of special-shaped parts with different shapes. The first clamping block is driven to approach or depart from the second clamping block through the connecting rod so as to clamp or loosen the special-shaped part.

Description

Clamping tool

Technical Field

The utility model relates to the technical field of machining, in particular to a clamping tool.

Background

In the field of machining, some parts are required to meet special use requirements and are designed into special-shaped parts with irregular outer contours. For these special-shaped parts, special tool fixtures are usually required to be designed, and the universality of such tool fixtures is poor. For irregular shapes and fewer batches of special-shaped parts, if a special fixture is adopted, the cost is increased and the waste is large. Therefore, there is a need to design a tool fixture with high versatility, which is suitable for machining various special-shaped parts.

Disclosure of Invention

In order to solve at least one of the above technical problems, the present utility model provides a clamping tool, and the adopted technical scheme is as follows.

The utility model provides a clamping tool which comprises a base, a clamping assembly, a connecting rod and a fixing seat, wherein the base is provided with at least two guide grooves: at least one clamping assembly is arranged in the guide groove, the clamping assembly comprises a first clamping block and a second clamping block, and the first clamping block and the second clamping block slide in the guide groove to clamp or loosen the special-shaped part; the connecting rod is used for driving the first clamping block to slide in the guide groove; the fixing seat is fixedly connected with the base, and the fixing seat is connected with the connecting rod.

In some embodiments of the present utility model, the connecting rod is screwed with the first clamping block, and the connecting rod is rotated to drive the first clamping block to approach or separate from the second clamping block.

In some embodiments of the present utility model, the connecting rod is rotatably connected to the fixing base through a bearing.

In some embodiments of the present utility model, the clamping fixture includes a positioning member, where the positioning member is connected to an end of the connecting rod away from the clamping assembly, and the positioning member abuts against the fixing base to axially position the connecting rod.

In some embodiments of the present utility model, the clamping tool includes a pressing plate, where the pressing plate is connected to the base, and the pressing plate is used to press the top end of the special-shaped part.

In some embodiments of the present utility model, the clamping fixture includes a spacer block, the spacer block is connected to the platen, and the spacer block is fixed on the base.

In some embodiments of the present utility model, the clamping fixture includes a first fastener, the first fastener is connected with the base, and the first fastener is used for adjusting the fastening degree of the pressing plate.

In some embodiments of the utility model, the platen is provided with a sliding slot through which the platen slides along the first fastener to adjust the position of the platen.

In some embodiments of the utility model, the clamping assembly includes a second fastener threadedly coupled to the base, the second clamp block being secured within the guide channel by the second fastener.

In some embodiments of the present utility model, the second clamping block is provided with a positioning groove, and the second clamping block slides along the second fastening piece through the positioning groove to adjust the position.

The embodiment of the utility model has at least the following beneficial effects: the clamping tool is used for clamping the special-shaped part through a plurality of end points of the special-shaped part by a plurality of groups of clamping assemblies. The clamping component slides in the guide groove to adjust the position so as to adapt to the clamping of special-shaped parts with different shapes. The first clamping block is driven to approach or depart from the second clamping block through the connecting rod so as to clamp or loosen the special-shaped part.

Drawings

The foregoing and/or additional aspects and advantages of the present utility model will be apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings.

FIG. 1 is a schematic structural diagram of a clamping tool;

FIG. 2 is a schematic diagram illustrating a clamping state of the clamping tool provided in FIG. 1;

fig. 3 is a schematic connection diagram of the connecting rod and the fixing seat in the clamping tool provided in fig. 2;

fig. 4 is a schematic structural diagram of a base in the clamping tool provided in fig. 2.

Reference numerals: 100. a base; 101. a guide groove; 210. a first clamping block; 220. a second clamping block; 221. a positioning groove; 230. a second fastener; 300. a connecting rod; 310. a positioning piece; 311. a first lock nut; 312. a second lock nut; 320. positioning the shaft sleeve; 330. a driving structure; 400. a fixing seat; 411. a first bearing; 412. a second bearing; 510. a cushion block; 520. a pressing plate; 521. a sliding groove; 530. a first fastener.

Detailed Description

Embodiments of the present utility model are described in detail below with reference to fig. 1 through 4, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that, if the terms "center", "middle", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are used as directions or positional relationships based on the directions shown in the drawings, the directions are merely for convenience of description and for simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Features defining "first", "second" are used to distinguish feature names from special meanings, and furthermore, features defining "first", "second" may explicitly or implicitly include one or more such features. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The clamping fixture comprises a base 100, a clamping assembly, a connecting rod 300 and a fixing seat 400, wherein the base 100 is provided with at least two guide grooves 101: a clamping assembly is arranged in the guide groove 101 and comprises a first clamping block 210 and a second clamping block 220, and the first clamping block 210 and the second clamping block 220 slide in the guide groove 101 to clamp or loosen the special-shaped part; the connecting rod 300 is used for driving the first clamping block 210 to slide in the guide groove 101; the fixing base 400 is connected with the base 100, and the fixing base 400 is connected with the connecting rod 300. The clamping tool is used for clamping the special-shaped part through a plurality of end points of the special-shaped part by a plurality of groups of clamping assemblies. The clamping assembly slides in the guide slot 101 to adjust the position to accommodate the clamping of different shaped parts. The first clamping block 210 is driven to approach or separate from the second clamping block 220 by the connecting rod 300 to clamp or loosen the special-shaped parts.

As can be appreciated in connection with the figures, the first clamping block 210 is provided with a first clamping surface and the second clamping block 220 is provided with a second clamping surface. In this embodiment, the first clamping surface and the second clamping surface are both planes inclined upwards by 45 ° and are disposed opposite to each other.

Further, the clamping assembly includes a second fastener 230. Specifically, with reference to the drawings, a second fastener 230 is disposed through the second clamp block 220, the second fastener 230 being threadably coupled to the base 100. It will be appreciated that the second clamping block 220 is fixed in the guide groove 101 by the second fastening member 230, and the first clamping block 210 is driven by the connecting rod 300 to approach the second clamping block 220 along the extending direction of the guide groove 101 so as to clamp the special-shaped part, and the first clamping block 210 is far away from the second clamping block 220 along the extending direction of the guide groove 101 so as to relax the special-shaped part.

Further, the second clamping block 220 is provided with a positioning groove 221, and the second clamping block 220 slides along the second fastening piece 230 through the positioning groove 221 to adjust the position. It can be appreciated that the positioning groove 221 is provided to enable the second clamping block 220 to slide relatively along the second fastening member 230, so as to adjust the position of the second clamping block 220 in the guiding groove 101, thereby realizing the change of the clamping position of the special-shaped part. It will be appreciated that in other embodiments, the second clamping block 220 may be fixedly connected to the base 100 in other manners, such as providing a clamping portion with a different gear in the positioning slot 221, or providing a threaded connection between the second clamping block 220 and the base 100 in an axial direction parallel to the direction of the guiding slot 101.

Further, the clamping tool comprises a pressing plate 520, the pressing plate 520 is connected with the base 100, and the pressing plate is used for pressing the upper side of the special-shaped part so as to fasten the special-shaped part in the height direction, and the problem that the machining precision is affected due to movement of the special-shaped part with the outer contour of a pipeline and other shapes is avoided. . As can be appreciated in connection with the figures, the platen is mounted on the profiled part. It can be understood that the clamping and fixing of the special-shaped part in the height direction can be realized by means of dead weight or load application.

In some embodiments, the clamping fixture comprises a cushion block 510, the cushion block 510 is fixed on the base 100, the cushion block 510 is connected with a pressing plate 520, and the pressing plate 520 is erected on the cushion block 510 and the special-shaped part in combination with the drawing. In this embodiment, the pressing plate 520 is erected at a fixed height through the spacer blocks 510, and the height of the spacer blocks 510 is consistent with the height of the profiled part after clamping, so as to better fix the profiled part. In this embodiment, two pressing plates 520 are provided, and the two pressing plates 520 are used for fixing different positions of the special-shaped parts respectively.

In other embodiments, the spacer block 510 is replaced with a positioning post and a spring, the positioning post is fixedly connected with the base 100, and the pressing plate 520 is movably connected with the positioning post. Specifically, the pressing plate 520 moves up and down relative to the positioning column, the spring is disposed between the pressing plate 520 and the base 100, and the spring is sleeved outside the positioning column. It will be appreciated that the provision of springs outside the positioning posts can make the platen 520 suitable for clamping of shaped parts of different shapes.

Further, the clamping fixture comprises a first fastening member 530, and with reference to the accompanying drawings, the first fastening member 530 is disposed through the pressing plate 520, and the first fastening member is used for applying a load to the pressing plate 520, and further applying a load to the special-shaped part to fasten the special-shaped part along the height direction. The first fastening member 530 is screw-coupled with the base 100, and the first fastening member 530 is rotated to adjust the tightness of the pressing plate 520. In this embodiment, the first fastening member 530 is configured as a bolt, the base 100 is provided with a first threaded hole corresponding to the first fastening member 530, and a spacer is installed between the first fastening member 530 and the pressing plate 520. In other embodiments, the first fastening member 530 may be provided in the form of a column, and a screw thread is provided at an end of the first fastening member 530 connected to the pressing plate 510, and the fastening degree of the pressing plate 510 is adjusted by rotating a nut.

Further, the pressing plate 520 is provided with a sliding groove 521, and with reference to the drawings, the pressing plate 520 slides along the first fastening member 530 through the sliding groove 521 to clamp or release the profiled element in the height direction. Specifically, in the present embodiment, the sliding groove 521 is disposed away from the opening at one end of the profiled element, so that the pressing plate 520 is more convenient to detach or install. It will be appreciated that the platen 520 can be moved or rotated along the first fastener 530 to accommodate clamping of the profiled element at different locations on the base.

In some embodiments, the connecting rod 300 is threadedly coupled to the first clamping block 210, and rotating the connecting rod 300 drives the first clamping block 210 toward or away from the second clamping block 220. Referring to the drawings, the first clamping block 210 is provided with a screw connection hole, which is provided through the first clamping block 210 in the axial direction of the connecting rod 300. The end of the connecting rod 300 connected with the first clamping block 210 is provided with external threads, and the connecting rod 300 rotates in the first clamping block 210 to drive the first clamping block 210 to slide in the guide groove 101, so that the first clamping block 210 approaches to or departs from the second clamping block 220, and clamping or loosening of the special-shaped part is realized.

Specifically, in the present embodiment, the connecting rod 300 is rotatably connected to the fixing base 400 through a bearing. It can be appreciated that the bearing is disposed between the connecting rod 300 and the fixing base 400 to reduce wear consumption, so that the rotation of the connecting rod 300 relative to the fixing base 400 is smoother.

Referring to the drawings, a first bearing 411 and a second bearing 412 are disposed between the connecting rod 300 and the fixing base 400, the first bearing 411 is disposed near the first clamping block 210, the fixing base 400 is provided with a shoulder for positioning an outer ring of the first bearing 411, the connecting rod 300 is provided with a shaft shoulder for positioning the first bearing 411, and a circlip for a shaft and a circlip for a hole are disposed between the first bearing 411 and the second bearing 412 to position the second bearing 412.

Further, the clamping fixture includes a positioning member 310, it can be understood that the positioning member 310 abuts against the fixing seat 400 to axially position the connecting rod 300, so as to avoid axial movement of the connecting rod 300 during rotation of the driving connecting rod 300. Specifically, the positioning member 310 is connected to an end of the connecting rod 300 remote from the clamping assembly. In this embodiment, a positioning sleeve 320 is disposed between the positioning member 310 and the second bearing 412, one end of the positioning sleeve 320 abuts against the positioning member 310, and the other end abuts against the second bearing 412. The positioning member 310 abuts against the positioning sleeve 320 to realize axial positioning of the connecting rod 300.

Specifically, the positioning member 310 is in threaded connection with the connecting rod 300, and in combination with the accompanying drawings, the positioning member 310 comprises a first locking nut 311 and a second locking nut 312, and a tightening torque is applied between the first locking nut 311 and the second locking nut 312, so that the self-locking effect between the positioning member 310 and the connecting rod 300 is more reliable, and the problem that the connecting rod 300 moves axially due to failure of connection between the positioning member 310 and the connecting rod 300, and the first clamping block 210 cannot be normally driven to displace is avoided.

Further, the connecting rod 300 includes a driving structure 330, and the driving structure 330 is disposed at an end of the connecting rod 300 remote from the first clamping block 210. In this embodiment, the driving structure 330 is configured as an outer four-corner structure so as to drive the rotation of the connecting rod 300. It will be appreciated that in other embodiments, the drive structure 330 may be configured as an external hex, external octagon, internal hex or other form of structure to facilitate rotation of the drive connection rod 300.

Other constructions and operations of the clamping fixture are well known to those skilled in the art and will not be described in detail herein. In the following, the utility model is described in detail with reference to a specific embodiment, it being noted that the following description is merely illustrative and not a specific limitation of the utility model.

In use, the base 100 is first fixed to the table surface of the horizontal machining center, the first bearing 411, the circlip for shaft, the circlip for hole, and the second bearing 412 are mounted in the fixing base 400, and the fixing base 400 is fixedly mounted on the base 100. The first clamping block 210 is placed in the guide groove 101 of the base 100, the connecting rod 300 passes through the fixing seat 400 to be in threaded connection with the first clamping block 210, and the other end of the connecting rod 300 is sleeved into the positioning shaft sleeve 320, and then the first locking nut 311 and the second locking nut 312 are respectively installed and are screwed to apply torque. After the first clamp block 210 is installed, the second clamp block 220 is placed in the guide groove 101, and the second fastener 230 is tightened to fix the second clamp block 220. The special-shaped part to be processed is placed between the first clamping block 210 and the second clamping block 220, the driving structure 330 of the connecting rod 300 is screwed to adjust the position of the special-shaped part and clamp, finally the first fastening piece 530 is adjusted, and the special-shaped part is tightly stacked through the pressing plate 520 for processing.

In the description of the present specification, if a description appears that makes reference to the term "one embodiment," "some examples," "some embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples," etc., it is intended that the particular feature, structure, material, or characteristic described in connection with the embodiment or example be included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

In the description of the present utility model, the terms "and" if used in the singular are intended to mean "and" as opposed to "or". For example, the patent name "a A, B" describes that what is claimed in the present utility model is: a technical scheme with a subject name A and a technical scheme with a subject name B.

Claims

1. Clamping tool, its characterized in that includes:

the base (100), at least two guide slots (101) are arranged on the base (100):

the clamping assembly is arranged in the guide groove (101) and comprises a first clamping block (210) and a second clamping block (220), and the first clamping block (210) and the second clamping block (220) slide in the guide groove (101) to clamp or loosen the special-shaped part;

-a connecting rod (300), the connecting rod (300) being adapted to drive the first clamping block (210) to slide in the guide groove (101);

the fixing base (400), fixing base (400) with base (100) are connected, fixing base (400) with connecting rod (300) are connected.

2. The clamping tool according to claim 1, wherein: the connecting rod (300) is in threaded connection with the first clamping block (210), the connecting rod (300) is rotated, and the first clamping block (210) is driven to approach or depart from the second clamping block (220).

3. The clamping fixture of claim 2, wherein: the connecting rod (300) is rotatably connected with the fixing seat (400) through a bearing.

4. A clamping fixture according to claim 3, wherein: the clamping tool comprises a positioning piece (310), wherein the positioning piece (310) is connected with one end, far away from the clamping assembly, of the connecting rod (300), and the positioning piece (310) is abutted with the fixing seat (400) to axially position the connecting rod (300).

5. The clamping tool according to claim 1, wherein: the clamping tool comprises a pressing plate (520), wherein the pressing plate (520) is connected with the base (100), and the pressing plate (520) is used for pressing the upper side of the special-shaped part.

6. The clamping tool according to claim 5, wherein: the clamping tool comprises a cushion block (510), wherein the cushion block (510) is connected with the pressing plate (520), and the cushion block (510) is fixed on the base (100).

7. The clamping tool of claim 6, wherein: the clamping tool comprises a first fastening piece (530), wherein the first fastening piece (530) is connected with the base (100), and the first fastening piece (530) is used for adjusting the fastening degree of the pressing plate (520).

8. The clamping tool of claim 7, wherein: the pressing plate (520) is provided with a sliding groove (521), and the pressing plate (520) slides along the first fastening piece (530) through the sliding groove (521) so as to adjust the position of the pressing plate (520).

9. The clamping tool according to claim 1, wherein: the clamping assembly comprises a second fastening piece (230), the second fastening piece (230) is in threaded connection with the base (100), and the second clamping block (220) is fixed in the guide groove (101) through the second fastening piece (230).

10. The clamping tool of claim 9, wherein: the second clamping block (220) is provided with a positioning groove (221), and the second clamping block (220) slides along the second fastening piece (230) through the positioning groove (221) to adjust the position.