CN113787370A

CN113787370A - Tooling mechanism for machining hole of oil pump shell of manual pallet truck

Info

Publication number: CN113787370A
Application number: CN202111344138.XA
Authority: CN
Inventors: 王京武
Original assignee: Shandong Shanyu Heavy Industry Machinery Co ltd
Current assignee: Shandong Shanyu Heavy Industry Machinery Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2021-12-14
Anticipated expiration: 2041-11-15
Also published as: CN113787370B

Abstract

The invention discloses a tooling mechanism for machining holes of an oil pump shell of a manual pallet truck, which relates to the technical field of machine tool tooling and comprises a clamping rod, wherein one end of the clamping rod is provided with a clamping plate, the side wall of the clamping plate, which is far away from the clamping rod, is provided with a stepping groove, a control assembly for adjusting the position of the oil pump shell and clamping and fixing the oil pump shell is arranged in the stepping groove, and one end of the clamping plate, which is far away from the clamping rod, is fixedly connected with a cover plate assembly in a rotating manner. According to the invention, the cover plate assembly is arranged, the sliding groove is matched with the sliding rail and the pressing plate, so that the oil pump shell can move along the X-axis direction and the Y-axis direction of the horizontal type numerical control lathe along the control assembly in the abdicating groove, but the oil pump shell is limited in the Z-axis direction and cannot move in the Z-axis direction of the horizontal type numerical control lathe, and thus the hole machining is carried out on the oil pump shell by matching with the drill bit, the hole boring cutter and the thread cutter, the depth of hole machining is ensured to be accurate, and the condition of cutter collision is avoided.

Description

Tooling mechanism for machining hole of oil pump shell of manual pallet truck

Technical Field

The invention relates to the technical field of machine tool tooling, in particular to a tooling mechanism for machining a hole of an oil pump shell of a manual pallet truck.

Background

The oil pump shell is a core part of a manual pallet truck and has the function similar to a valve seat of a hydraulic jack, the oil pump shell is intensively provided with functional parts such as a plunger pump, a plunger cylinder, a working valve, a control valve and the like, and simultaneously has the functions of mechanical connection and support, so that holes distributed on the oil pump shell comprise through holes, step holes, counter bores, threaded holes and the like, the inner diameters, the depths and the positions of the holes are different, after the oil pump shell is cast, a lathe is mostly adopted for finish machining, the hole positions of the oil pump shell are different, when hole machining is carried out, one hole needs to be machined and then is disassembled, the hole is placed in a next clamp for clamping, the axis of the hole can be ensured to be aligned with the axis of a machine tool spindle, when the oil pump shell has more holes, multiple times of clamping, multiple times of disassembling and multiple times of machining are needed, the machining period of the whole part is long, and different jigs need to be provided according to the position of each hole.

The chinese patent publication No. CN103358153A discloses a tooling mechanism for machining holes in an oil pump housing of a manual pallet truck, which is configured to perform machining of the oil pump housing by using a machined part of the oil pump housing to be machined as a positioning reference through arranging a fixture for clamping the oil pump housing to be machined, and matching with a flange plate, a dividing plate and other devices.

Disclosure of Invention

The invention aims to provide a tooling mechanism for machining a hole of an oil pump shell of a manual pallet truck, and the tooling mechanism is used for solving the technical problem that the tooling in the prior art can only be used in a numerical control machining center and cannot be applied to a common lathe.

The invention provides a tooling mechanism for machining a hole of an oil pump shell of a manual pallet truck, which comprises a clamping rod, wherein one end of the clamping rod is provided with a clamping plate, the side wall of the clamping plate, which is far away from the clamping rod, is provided with a step-down groove, a control assembly for adjusting the position of an oil pump shell and clamping and fixing the oil pump shell is arranged in the step-down groove, and one end of the clamping plate, which is far away from the clamping rod, is provided with a cover plate assembly;

the cover plate assembly comprises a body, the body is rotatably connected with the clamping plate through a hinge, the body is far away from one end of the hinge and fixedly connected with a permanent magnetic chuck, a sliding groove is formed in the side wall of the body, which is close to the yielding groove, of the body, a sliding rail is connected to the sliding groove in a sliding mode, a pressing plate matched with the oil pump shell is connected to the sliding rail in a sliding mode, and a yielding hole is formed in the center of the body.

Further, the control assembly includes electric putter, the cavity has been seted up in the supporting rod, and electric putter is located the cavity, electric putter's drive end fixedly connected with piston, a plurality of sliding sleeves of inslot fixedly connected with of stepping down, and the sliding sleeve passes through pipeline and cavity intercommunication setting, be provided with the check valve in the pipeline, sliding connection has the slider in the sliding sleeve, the inner wall fixedly connected with compression spring in the groove of stepping down, and compression spring keeps away from the one end fixedly connected with stopper of inslot wall of stepping down, the cavity internal rotation is connected with the sleeve pipe, and the sheathed tube lateral wall has seted up the guide way, the sleeve pipe is close to the one end fixedly connected with baffle of pipeline, and has seted up the breach on the baffle, the lateral wall fixedly connected with of electric putter output and the guide block that the guide way matches.

Further, the one end that the supporting rod is close to splint is provided with spherical head, the one end that splint are close to the supporting rod is provided with spherical groove, spherical head and spherical groove sliding connection set up, splint are close to the lateral wall fixedly connected with internal gear of supporting rod, and the internal gear is close to the lateral wall fixedly connected with uide bushing of supporting rod, the T-slot has been seted up on the uide bushing, the lateral wall fixedly connected with connecting rod of supporting rod, and the T-shaped piece that fixedly connected with and T-slot match on the connecting rod, the lateral wall fixedly connected with servo motor of supporting rod, and servo motor's output fixedly connected with and internal gear meshed's drive gear.

Furthermore, each sliding sleeve is communicated with the cavity through two pipelines, and the directions of the check valves in the two pipelines communicated with the same sliding sleeve are opposite.

Furthermore, the inner wall of the abdicating groove is provided with a blind hole, the blind hole is internally and slidably connected with a limiting rod, and the limiting rod is fixedly connected with a limiting block.

Further, the guide groove comprises a chute and a straight groove, and the bottom surfaces of the chute and the straight groove are inclined planes.

Furthermore, the one end that electric putter was kept away from to the guide block is seted up flutedly, and fixedly connected with reset spring in the recess, the one end fixedly connected with round bar that the recess inner wall was kept away from to reset spring, round bar and recess inner wall sliding connection set up, and the one end that the recess was kept away from to the round bar inlays the ball that is equipped with and offsets with the chute inner wall.

Further, the lateral wall of uide bushing is provided with the holding tank, and is provided with a plurality of guide bars in the holding tank.

Further, the pipeline is a PVC steel wire embedded pipe.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the invention, the cover plate component is arranged, the sliding groove is matched with the sliding rail and the pressing plate, so that the oil pump shell can move along the X-axis direction and the Y-axis direction of the horizontal numerical control lathe in the abdicating groove, but the movement of the oil pump shell in the Z-axis direction is limited, so that the oil pump shell cannot move in the Z-axis direction of the horizontal numerical control lathe, and the oil pump shell is in a fixed state in the cutting process under the driving and clamping of the control component, and is finally matched with the drill bit, the boring cutter and the thread cutter to perform different types of hole processing on the oil pump shell, the depth of hole processing can be ensured to be accurate, the condition of cutter collision can be avoided, and the oil pump shell can be effectively processed by the horizontal numerical control lathe and the control component.

(2) By arranging the control assembly, when the oil pump shell is processed, after a hole on the oil pump shell is processed, the electric push rod is controlled to perform primary telescopic stroke, at the same time, the sleeve is driven to rotate, so that the gap is aligned with different pipelines, when the piston drives the hydraulic oil in the cavity to flow, the hydraulic oil flows to the other sliding sleeve from one sliding sleeve, so that the sliding block in the other sliding sleeve drives the oil pump shell to move, further, the next position to be opened of the oil pump shell is aligned with the abdicating hole, and the axis of the position to be opened is aligned with the machine tool spindle, so that the hole machining operation of the oil pump shell can be carried out after a user executes a tool changing command of the horizontal numerical control machine tool according to the hole opening requirement without repeatedly clamping, the hole machining efficiency is effectively improved, meanwhile, the requirement on processing equipment is low, and the most common two-axis numerical control lathe can be used for processing.

(3) According to the tool mechanism, the spherical head is arranged to be matched with the spherical groove, so that the angle between the clamping rod and the clamping plate can be changed, the clamping plate and the guide block are driven to rotate by matching with the servo motor, the position of the guide block corresponding to the T-shaped block is adjusted, the angle between the clamping rod and the clamping plate is adjusted, a tool on a lathe can be matched to open an inclined hole in the oil pump shell, the application range of the tool mechanism is expanded, the actual requirement for machining an oil pump shell hole is comprehensively met, the included angle between the clamping rod and the clamping plate is accurately controlled by the tool, and the requirement for machining accuracy of the oil pump shell is met.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a half-section of the present invention;

FIG. 3 is a schematic view of the back structure of the present invention;

FIG. 4 is a schematic view of the cover plate assembly of the present invention;

FIG. 5 is a schematic view of the internal structure of the present invention;

FIG. 6 is a schematic view of the construction of the bushing of the present invention;

FIG. 7 is an enlarged view taken at A in FIG. 3;

fig. 8 is an enlarged view at B in fig. 2.

Reference numerals:

1. a clamping rod; 2. a splint; 3. a control component; 301. an electric push rod; 302. a cavity; 303. a piston; 304. a sliding sleeve; 305. a pipeline; 306. a one-way valve; 307. a compression spring; 308. a limiting block; 309. a sleeve; 310. a guide groove; 320. a chute; 330. a straight groove; 311. a baffle plate; 312. a notch; 313. a guide block; 4. a cover plate assembly; 401. a body; 402. a permanent magnetic chuck; 403. a chute; 404. a slide rail; 405. pressing a plate; 406. a hole of abdication; 5. a spherical head; 6. an internal gear; 7. a guide sleeve; 8. a T-shaped slot; 9. a servo motor; 10. a drive gear; 11. blind holes; 12. a limiting rod; 13. a return spring; 14. a round bar; 15. and a ball.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

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 invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, an embodiment of the present invention provides a tooling mechanism for hole machining of an oil pump housing of a manual pallet truck, including a clamping rod 1, where the clamping rod 1 is used as a part clamped by a chuck on a horizontal numerically-controlled machine tool, a clamping plate 2 is arranged at one end of the clamping rod 1, a yielding groove is arranged on a side wall of the clamping plate 2 away from the clamping rod 1, a control component 3 for adjusting and clamping and fixing a position of the oil pump housing is arranged in the yielding groove, and a cover plate component 4 is arranged at one end of the clamping plate 2 away from the clamping rod 1, in consideration of the requirement of synchronous rotation of the tooling along with a main shaft of the horizontal numerically-controlled machine tool, a power supply module of the tooling mechanism is convenient to arrange a power supply device using a storage battery as a core on a side wall of the clamping plate 2 close to the clamping rod 1, and can also supply power to the work by using a power distribution system on the horizontal numerically-controlled machine tool through an electric brush, on the other hand, when oil pump housings of the same type are machined in large batch, the clamping rod 1 can be directly fixed with a main shaft of a horizontal numerical control lathe;

the cover plate assembly 4 comprises a body 401, the body 401 is rotatably connected with the clamping plate 2 through a hinge, and one end of the body 401 far away from the hinge is fixedly connected with a permanent magnetic chuck 402, wherein the permanent magnetic chuck 402 is a small manual permanent magnetic chuck, also known as a magnetic seat, and is a common accessory in the metal processing industry and used for fixing the oil pump shell in the Z-axis direction in a matching way with the body 401, a sliding groove 403 is formed in the side wall of the body 401 close to the abdicating groove, a sliding rail 404 is slidably connected with the sliding groove 403, a pressing plate 405 matched with the oil pump shell is slidably connected onto the sliding rail 404, an abdicating hole 406 is formed in the center of the body 401, the pressing plate 405 can move in the X-axis and Y-axis directions of the horizontal numerical control machine tool through the sliding groove 403 and the sliding rail 404, it is ensured that the hole position of the oil pump shell can be just opposite to the abdicating hole 406, and the abdicating hole 406 is used for tools such as a drill bit and a boring cutter, and the like, so as to avoid interference of punching on the oil pump shell by the horizontal numerical control machine tool, and the pressure plate 405 is L-shaped for improving the limiting effect while avoiding shielding the punching points on the oil pump housing.

Specifically, the control assembly 3 includes an electric push rod 301, a cavity 302 is formed in the clamping rod 1, the electric push rod 301 is located in the cavity 302, a piston 303 is fixedly connected to a driving end of the electric push rod 301, a plurality of sliding sleeves 304 are fixedly connected in the abdicating slot, the sliding sleeves 304 are communicated with the cavity 302 through a pipeline 305, a one-way valve 306 is arranged in the pipeline 305, a sliding block is slidably connected in the sliding sleeves 304, wherein the sliding block is in interference fit with an inner wall of the sliding sleeves 304 and is used for achieving an effect similar to a hydraulic rod, hydraulic oil is arranged in the cavity 302, it should be noted that the shape of one end of the sliding block close to the sliding sleeves 304 is different according to the inner diameter of the sliding sleeves 304, wherein the inner diameter of the sliding sleeves 304 is set according to a stroke of the sliding block required to move in a machining process, the larger moving stroke of the sliding block is, the smaller inner diameter of the sliding sleeves 304 is, otherwise, the larger the inner wall of the abdicating slot is fixedly connected with a compression spring 307, and the end of the compression spring 307 far away from the inner wall of the abdicating groove is fixedly connected with a limit block 308, the compression spring 307 and the limit block 308 are used for clamping the oil pump shell by utilizing the elasticity of the compression spring 307 after the oil pump shell is driven by the slide block to move, the compression spring 307 should select a spring with a large diameter and a small thread pitch, the expansion range of the compression spring 307 is reduced, and the clamping effect on the oil pump shell is ensured, the cavity 302 is rotatably connected with a sleeve 309, the side wall of the sleeve 309 is provided with a guide groove 310, one end of the sleeve 309 close to the pipeline 305 is fixedly connected with a baffle 311, and the baffle 311 is provided with a notch 312, by the design, the sleeve 309 is matched with the guide groove 310, in the expansion process of the electric push rod 301, the sleeve 309 can be driven to rotate, so that the notch 312 on the baffle 311 is aligned with different pipelines 305, and further the effect of conveying hydraulic oil from one sliding sleeve 304 to the other sliding sleeve 304 is realized, a guide block 313 matched with the guide groove 310 is fixedly connected to the side wall of the output end of the electric push rod 301.

Specifically, each sliding sleeve 304 is communicated with the cavity 302 through two pipelines 305, the direction of the check valve 306 in the two pipelines 305 communicated with the same sliding sleeve 304 is opposite, and the design is used for being matched with the piston 303 to be used, so that hydraulic oil in one sliding sleeve 304 is conveyed into the next sliding sleeve 304, the next sliding block is driven to move, and then the position of the oil pump shell is adjusted for multiple times through the mode, and hole machining of different positions of the oil pump shell is realized.

Specifically, the inner wall in the groove of stepping down has been seted up blind hole 11, and sliding connection has gag lever post 12 in the blind hole 11, and gag lever post 12 sets up with stopper 308 fixed connection, and this kind of design utilizes gag lever post 12 to carry on spacingly to stopper 308, makes it only can remove along the tensile and compressed direction of spring, avoids stopper 308 the skew of side direction to appear, guarantees the location when fixing the oil pump shell accurate.

Specifically, the guide groove 310 comprises the inclined groove 320 and the straight groove 330, the bottom surfaces of the inclined groove 320 and the straight groove 330 are inclined surfaces, and due to the design, a step surface is formed at the joint of the inclined groove 320 and the straight groove 330, so that a non-return effect is achieved, the sliding track of the guide block 313 is ensured, and the guide block 313 is prevented from directly reciprocating in the inclined groove 320 and the straight groove 330, so that the sleeve 309 cannot stretch and retract under the driving of the electric push rod 301.

Specifically, the one end that electric putter 301 was kept away from to guide block 313 is seted up flutedly, and fixedly connected with reset spring 13 in the recess, reset spring 13 keeps away from the one end fixedly connected with round bar 14 of recess inner wall, round bar 14 sets up with recess inner wall sliding connection, and round bar 14 keeps away from the one end of recess and inlays and be equipped with ball 15 that offsets with chute 320 inner wall, this kind of design, be used for the cooperation bottom surface to use for inclined groove 320 and straight flute 330 on inclined plane, and utilize ball 15 to reduce the frictional force of guide block 313 and guide way 310, reduce electric putter 301's running load and energy consumption.

Specifically, the pipe 305 is a PVC steel embedded pipe, which has excellent performance in conveying fluid with pressure, and the pipe 305 does not expand under the pressure of hydraulic oil, thereby ensuring that the moving stroke of the slider is the same as the design stroke.

The specific working method comprises the following steps: when a user carries out hole machining on the oil pump shell, firstly, a blank of the oil pump shell which is formed by casting is placed in the abdicating groove, the side edge of the blank is aligned with the limiting block 308, then the electric push rod 301 is controlled to extend, at the moment, the electric push rod 301 drives the piston 303 to convey hydraulic oil into one of the sliding sleeves 304, so that one of the sliding blocks moves, the sliding block drives the oil pump shell to move and is matched with the limiting block 308 to clamp the oil pump shell, then, the user rotates the cover plate component 4, when the permanent magnetic chuck 402 is utilized, the body 401 is matched with the abdicating groove inner wall to limit the oil pump shell, at the moment, one hole machining position on the oil pump shell is just opposite to the abdicating hole 406, then, the user starts the horizontal numerical control machine tool to drive the tool mechanism and the oil pump shell to rotate, then, the horizontal numerical control tool is utilized to carry out hole machining on the oil pump shell, and one hole machining is completed, when the electric push rod 301 contracts, on one hand, the piston 303 is used to drive hydraulic oil to flow, at the same time, the hydraulic oil in the sliding sleeve 304 flows into the cavity 302, the sliding block in the sliding sleeve 304 returns to the initial position, and after the hydraulic oil flows towards the one-way valve 306 of the cavity 302, the hydraulic oil flows into the cavity 302 completely, at the same time, the guide block 313 slides in the chute 320 to drive the sleeve 309 to rotate, at the same time, the baffle 311 rotates synchronously, so that the position of the notch 312 is staggered with the oil inlet pipeline of the sliding sleeve 304 (i.e. the position is communicated with the sliding sleeve 304, the flow direction of the one-way valve 306 faces the pipeline 305 of the sliding sleeve 304), and the notch 312 is aligned with the oil inlet pipeline of the next sliding sleeve 304, then the electric push rod 301 extends, the piston 303 drives the hydraulic oil to enter the sliding sleeve 304 through the oil inlet pipeline of the next sliding sleeve 304, thereby the position of the oil pump shell is adjusted for the second time, at the moment, the next hole opening position of the oil pump shell is just opposite to the abdicating hole 406, the user can control the horizontal numerical control machine tool to carry out hole processing operation on the next hole opening position, the steps are repeated until the sleeve 309 rotates for a circle, the hole processing operation of the oil pump shell can be completed, only one clamping is needed, the purpose of one-time clamping and multiple hole processing can be realized by matching with the programming operation of the horizontal numerical control machine tool and various cutters of the upper tool rest of the horizontal numerical control machine tool, the production is convenient for the user, and only the popular horizontal numerical control machine tool can be used, the production efficiency is greatly improved, meanwhile, the numerical control processing center with higher cost does not need to be replaced, large-scale equipment updating of enterprises is not needed, the production requirements of the enterprises are met, in addition, when the description is needed, the clamping rod 1 and the clamping plate 2 are fixedly connected in the embodiment, thereby ensuring the synchronous rotation of the oil pump shell and the numerical control lathe.

The design that the spherical head 5 is arranged at one end of the clamping rod 1 close to the clamping rod 2, the spherical groove is arranged at one end of the clamping rod 2 close to the clamping rod 1, the spherical head 5 is arranged in a sliding connection with the spherical groove, the included angle between the clamping rod 2 and the clamping rod 1 can be changed, so that an inclined hole is formed in the oil pump shell, an internal gear 6 is fixedly connected to the side wall of the clamping rod 1 close to the clamping rod 2, a guide sleeve 7 is fixedly connected to the side wall of the internal gear 6 close to the clamping rod 1, a T-shaped groove 8 is formed in the guide sleeve 7, the surface, provided with the T-shaped groove 8, of the guide sleeve 7 is a smooth curved surface and used for being matched with a T-shaped block to adjust the angle between the clamping rod 1 and the clamping rod 2, a connecting rod is fixedly connected to the side wall of the clamping rod 1, a T-shaped block matched with the T-shaped groove 8 is fixedly connected to the connecting rod, a servo motor 9 is fixedly connected to the side wall of the clamping rod 1, wherein the servo motor 9 is a band-type brake motor, when the servo motor 9 is not in operation, and the clamping rod 1 and the clamping plate 2 can synchronously rotate under the condition of contracting brake, and the output end of the servo motor 9 is fixedly connected with a driving gear 10 meshed with the internal gear 6.

Specifically, the lateral wall of uide bushing 7 is provided with the holding tank, and is provided with a plurality of guide bars in the holding tank, and the holding tank is used for holding and tightens up and twine pipeline 305 on uide bushing 7 after splint 2 rotates to lead to and separate pipeline 305 through the guide bar, avoid a plurality of pipelines 305 to extrude each other, lead to the slider abnormal movement.

The specific working method comprises the following steps: when a user processes the oil pump shell containing the inclined hole, the electric push rod 301 stretches to adjust the position of the oil pump shell, the user controls the servo motor 9 to rotate, the servo motor 9 drives the inner gear 6 to rotate through the driving gear 10, at this time, the clamping plate 2 and the guide sleeve 7 rotate relative to the clamping rod 1, and the T-shaped block slides in the T-shaped groove 8, thereby changing the included angle between the clamping plate 2 and the clamping rod 1, and the cutter of the horizontal numerically controlled lathe is not vertical to the oil pump shell, so that when the horizontal numerically controlled lathe runs, an inclined hole can be arranged on the oil pump shell, thereby meeting the production requirements of the oil pump shells with different specifications and models, expanding the practical application range of the work, and the requirements to be explained are that, after carrying out once processing, need utilize servo motor 9 reverse drive splint 2 to rotate a week, avoid pipeline 305 to twine too much on uide bushing 7 and lead to the pipeline 305 to damage and servo motor 9 card circumstances such as dead.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a manual pallet truck oil pump casing frock mechanism for spot facing work which characterized in that: the oil pump clamping device comprises a clamping rod (1), wherein a clamping plate (2) is arranged at one end of the clamping rod (1), a yielding groove is formed in the side wall, away from the clamping rod (1), of the clamping plate (2), a control assembly (3) for adjusting the position of an oil pump shell and clamping and fixing the oil pump shell is arranged in the yielding groove, and a cover plate assembly (4) is arranged at one end, away from the clamping rod (1), of the clamping plate (2);

apron subassembly (4) include body (401), body (401) are connected through the hinge rotation with splint (2), and body (401) keep away from the one end fixedly connected with permanent magnetism sucking disc (402) of hinge, body (401) are close to the lateral wall in the groove of stepping down and have seted up spout (403), and spout (403) sliding connection has slide rail (404), sliding connection has clamp plate (405) that matches with the oil pump shell on slide rail (404), body (401) central point puts and has seted up hole (406) of stepping down.

2. The tooling mechanism for machining the hole of the oil pump shell of the manual pallet truck as claimed in claim 1, characterized in that: the control assembly (3) comprises an electric push rod (301), a cavity (302) is formed in the clamping rod (1), the electric push rod (301) is located in the cavity (302), a piston (303) is fixedly connected to the driving end of the electric push rod (301), a plurality of sliding sleeves (304) are fixedly connected in the abdicating groove, the sliding sleeves (304) are communicated with the cavity (302) through a pipeline (305), a one-way valve (306) is arranged in the pipeline (305), a sliding block is connected in the sliding sleeves (304), a compression spring (307) is fixedly connected to the inner wall of the abdicating groove, a limit block (308) is fixedly connected to one end, away from the abdicating groove inner wall, of the compression spring (307), a sleeve (309) is rotatably connected in the cavity (302), a guide groove (310) is formed in the side wall of the sleeve (309), and a baffle (311) is fixedly connected to one end, close to the sleeve (309), of the pipeline (305), and a notch (312) is formed in the baffle (311), and a guide block (313) matched with the guide groove (310) is fixedly connected to the side wall of the output end of the electric push rod (301).

3. The tooling mechanism for machining the hole of the oil pump shell of the manual pallet truck as claimed in claim 1, characterized in that: the one end that supporting rod (1) is close to splint (2) is provided with spherical head (5), the one end that clamping rod (1) is close to splint (2) is provided with spherical groove, spherical head (5) set up with spherical groove sliding connection, splint (2) are close to lateral wall fixedly connected with internal gear (6) of supporting rod (1), and internal gear (6) are close to lateral wall fixedly connected with uide bushing (7) of supporting rod (1), T-slot (8) have been seted up on uide bushing (7), the lateral wall fixedly connected with connecting rod of supporting rod (1), and fixedly connected with and the T-shaped piece that T-slot (8) mate on the connecting rod, the lateral wall fixedly connected with servo motor (9) of supporting rod (1), and the output fixedly connected with of servo motor (9) and internal gear (6) meshed drive gear (10).

4. The tooling mechanism for machining the hole of the oil pump shell of the manual pallet truck as claimed in claim 2, characterized in that: each sliding sleeve (304) is communicated with the cavity (302) through two pipelines (305), and the directions of the check valves (306) in the two pipelines (305) communicated with the same sliding sleeve (304) are opposite.

5. The tooling mechanism for machining the hole of the oil pump shell of the manual pallet truck as claimed in claim 2, characterized in that: the inner wall of the abdicating groove is provided with a blind hole (11), the blind hole (11) is internally and slidably connected with a limiting rod (12), and the limiting rod (12) is fixedly connected with a limiting block (308).

6. The tooling mechanism for machining the hole of the oil pump shell of the manual pallet truck as claimed in claim 2, characterized in that: the guide groove (310) comprises a chute (320) and a straight groove (330), and the bottom surfaces of the chute (320) and the straight groove (330) are inclined surfaces.

7. The tooling mechanism for machining the hole of the oil pump shell of the manual pallet truck as claimed in claim 6, characterized in that: the one end that electric putter (301) were kept away from in guide block (313) is seted up flutedly, and fixedly connected with reset spring (13) in the recess, the one end fixedly connected with round bar (14) of recess inner wall are kept away from in reset spring (13), round bar (14) and recess inner wall sliding connection set up, and round bar (14) keep away from the one end of recess and inlay ball (15) that are equipped with and offset chute (320) inner wall.

8. The tooling mechanism for machining the hole of the oil pump shell of the manual pallet truck as claimed in claim 3, characterized in that: the lateral wall of uide bushing (7) is provided with the holding tank, and is provided with a plurality of guide bars in the holding tank.

9. The tooling mechanism for machining the hole of the oil pump shell of the manual pallet truck as claimed in claim 2, characterized in that: the pipeline (305) is a PVC embedded steel wire pipe.