Rear cover horizontal machining clamp

Abstract

A rear cover horizontal machining clamp comprises a positioning plate and a clamping mechanism arranged on the positioning plate, the clamping mechanism comprises a supporting assembly and at least one clamping assembly, a clamping station is formed between the supporting assembly and the clamping assembly, and a workpiece to be machined is placed in the clamping station. The supporting assembly is connected with the to-be-machined workpiece and supports the to-be-machined workpiece, the clamping assembly is provided with a clamping end, the clamping end rotates towards the to-be-machined workpiece to clamp and fix the to-be-machined workpiece, and by arranging the clamping assembly and the supporting assembly, the stability and machining precision of the workpiece can be effectively improved. And the clamping assembly is designed, so that the clamping assembly can be adjusted at different angles and forces to adapt to workpieces of various shapes and sizes. And the supporting assembly provides firm bottom supporting, and it is ensured that the workpiece does not displace or vibrate in the machining process.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment technical field, concretely relates to a rear cover lying and adding clamp. BACKGROUND

[0002] In the product structure of the hydraulic plunger pump, the rear cover generally adopts cast iron material, and in the actual production pouring process of the foundry manufacturer, the foundry manufacturer facilitates the mold drawing or the core box opening, and the surface of the shape exists about 2 degrees of the drawing slope, and this also causes great influence on the positioning accuracy during the initial machining of the machining. In the casting machining process, the clamping of the blank surface is usually using flat tongs and pressing plate to clamp the workpiece to be processed, because of the above and other reasons, the workpiece to be processed often occurs unstable size, tool vibration, poor machining surface finish and other consequences during the machining process. In order to ensure the part size feeding speed, the cutting depth is small, the production efficiency is not high, and the stability is poor. SUMMARY

[0003] Therefore, the utility model provides a rear cover lying and adding clamp.

[0004] In order to achieve the above object, the utility model provides the following technical scheme:

[0005] A rear cover lying and adding clamp, including positioning plate and clamping mechanism set on the positioning plate, the clamping mechanism includes support assembly and at least one clamping assembly, the support assembly and the clamping assembly form clamping station between, the workpiece to be processed is placed in the clamping station, the support assembly is connected with the workpiece to be processed and supports the workpiece to be processed, the clamping assembly has clamping end, and the clamping end rotates towards the workpiece to be processed direction and clamps and fixes the workpiece to be processed.

[0006] Preferably, the clamping assembly includes pressing block, pressing block base and clamping block, the pressing block base is arranged on the positioning plate, the movable slot is formed in the pressing block base, the movable slot has the clamping mouth that sets up towards the workpiece to be processed direction and the pressing block movable port that is away from the positioning plate, the pressing block and the clamping block are arranged in the movable slot, the first movable connecting piece and the second movable connecting piece are arranged in the movable slot, one end of the first movable connecting piece passes through the pressing block and is connected with the pressing block base movably on the one side groove wall close to the positioning plate, the second movable connecting piece is arranged on the groove wall of the movable slot, the clamping block is rotatably arranged on the second movable connecting piece, one end of the clamping block is connected with the pressing block, and the clamping end is arranged on the one end of the clamping block close to the workpiece to be processed, and the clamping end extends out of the movable slot through the clamping mouth and abuts against the workpiece to be processed.

[0007] Preferably, the clamping transmission face is arranged on the side close to the clamping block of the pressing block, the clamping transmission end is formed by protruding towards the clamping transmission face direction of the clamping block, and the clamping transmission end is connected with the clamping transmission face.

[0008] Preferably, the pressing block is provided with a stepped structure on the side end face close to the positioning plate, the clamping block protrudes to form a retreat transmission end towards the stepped structure, and the retreat transmission end is connected with the stepped structure.

[0009] Preferably, the first movable connecting piece is a screw, a screw hole is formed in the side groove wall of the movable groove close to the positioning plate, one end of the first movable connecting piece is inserted into the screw hole and is screwed with the pressing block base, and the first movable connecting piece drives the pressing block to move in the movable groove by being screwed in or out.

[0010] Preferably, a rotating hole is formed in the clamping block, the second movable connecting piece is a rotating shaft, one end of the second movable connecting piece is connected with the side groove wall of the movable groove, and the other end of the second movable connecting piece is connected with the other side groove wall of the movable groove through the rotating hole.

[0011] Preferably, a clamping tooth pin is arranged on the clamping end of the clamping block, the clamping tooth pin has a clamping end, and the clamping end abuts against the workpiece to be processed to clamp and fix the workpiece to be processed.

[0012] Preferably, the supporting assembly comprises a supporting pin, a limiting pin and a positioning seat, the positioning seat is fixed on the positioning plate, the clamping station is formed between the positioning seat and the clamping assembly, the supporting pin and the limiting pin are arranged on the part of the positioning plate located in the clamping station, the height of the limiting pin is greater than the height of the supporting pin, the bottom surface of the workpiece to be processed is connected with the supporting pin, and the two side end faces of the workpiece to be processed are connected with the limiting pin.

[0013] Preferably, a flat tooth pin is arranged on the side end face of the positioning seat close to the workpiece to be processed, and the flat tooth pin abuts against the workpiece to be processed.

[0014] The beneficial effects of the utility model lie in that the clamping assembly and the supporting assembly are arranged, the stability and machining precision of the workpiece can be effectively improved, the clamping assembly can be adjusted at different angles and forces, and can adapt to workpieces of various shapes and sizes, and the supporting assembly provides firm bottom support, and ensures that the workpiece does not displace or vibrate during machining. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0016] ATTACHMENT Fig. 1The utility model discloses a structure schematic drawing.

[0017] Attached Fig. 2 It is clamping assembly structure schematic drawing.

[0018] Attached Fig. 3 It is clamping assembly structure exploded schematic drawing. Specific embodiments

[0019] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0020] The utility model will be further described below with reference to the drawings in the description.

[0021] The utility model provides the following technical scheme:

[0022] As shown in attached Figs. 1-3 The utility model discloses a rear cover lies and adds clamp, including positioning plate 1 and setting on the positioning plate 1 and clamping mechanism, the clamping mechanism includes support assembly 2 and at least one clamping assembly 3, the support assembly 2 and clamping assembly 3 between form clamping station 4, the clamping station 4 is placed with the workpiece 5 to be processed, the support assembly 2 is connected with the workpiece 5 to be processed and supports the workpiece 5 to be processed, the clamping assembly 3 has clamping end 6, and the clamping end 6 rotates to the workpiece 5 to be processed direction and clamps and fixes the workpiece 5 to be processed. Specifically, in the design, by setting up clamping assembly 3 and support assembly 2, the stability of workpiece and processing precision can be effectively improved. The design of clamping assembly 3 makes it can be adjusted under different angles and force, adapts to various shapes and sizes workpiece. Support assembly 2 provides solid bottom support, ensures that the workpiece does not displace or vibrate in the processing.

[0023] Before putting the workpiece 5, use the hexagonal wrench to rotate the screw downwards, the pressing block 7 moves downwards, the clamping block 9 rotates anticlockwise around the second movable connecting piece 14 to the position; when putting the workpiece 5, blow the surface of the tool to remove the iron filings, the workpiece 5 leans on the plane of the flat supporting nail 23, the lower end surface of the workpiece 5 leans on the plane formed by the flat tooth pin 26, the lateral positioning of the workpiece 5 leans on the limiting pin 24, at this time, the workpiece 5 is put in place; when clamping the workpiece 5, rotate the screw upwards to make the pressing block 7 move upwards, the pressing block 7 extrudes the clamping block 9 to make the clamping block 9 rotate clockwise around the second movable connecting piece 14, the front end of the clamping block 9 is provided with the clamping tooth pin 21, the clamping tooth pin 21 is engaged into the blank surface under the action of force to clamp the workpiece 5; when taking out the workpiece 5, lock the screw to make the pressing block 7 move downwards, drive the clamping block 9 to rotate anticlockwise around the second movable connecting piece 14 to reset the clamping block 9, and then take out the workpiece 5.

[0024] Due to the gravity of the workpiece 5, when putting the workpiece 5, the workpiece 5 will be engaged with the flat tooth pin 26 on the positioning seat 25, and the workpiece 5 can be clamped to the maximum extent to ensure that the supporting surface will not be suspended due to the draft angle; due to the special shape of the clamping block 9, a downward inclined force is generated, and there is a component force relative to the vertical plane of the workpiece, so that the clamping effect is more stable, the clamping stroke is relatively short, the rigidity of the clamp is more superior, and the machining efficiency and production efficiency are improved.

[0025] Further, the clamping assembly 3 comprises a pressing block 7, a pressing block base 8 and a clamping block 9. The pressing block base 8 is arranged on the positioning plate 1. An active slot 10 is formed on the pressing block base 8. The active slot 10 has a clamping opening 11 arranged towards the workpiece 5 and a pressing block active opening 12 away from the positioning plate 1. The pressing block 7 and the clamping block 9 are arranged in the active slot 10. A first active connecting piece 13 and a second active connecting piece 14 are arranged in the active slot 10. One end of the first active connecting piece 13 penetrates the pressing block 7 and is movably connected to the pressing block base 8 on the side slot wall close to the positioning plate 1. The second active connecting piece 14 is arranged on the slot wall of the active slot 10. The clamping block 9 is rotatably arranged on the second active connecting piece 14. One end of the clamping block 9 is connected to the pressing block 7. The clamping end 6 is arranged on the end of the clamping block 9 close to the workpiece 5. The clamping end 6 penetrates the active slot 10 through the clamping opening 11 and abuts against the workpiece 5. Specifically, in this embodiment, the pressing block 7 is connected to the pressing block base 8 by a screw. The rotation of the screw can adjust the position of the pressing block 7 in the active slot 10, thereby controlling the clamping force of the clamping block 9. The design of the pressing block base 8 ensures its stability on the positioning plate 1, preventing displacement due to vibration during machining. The design of the clamping block 9 enables it to effectively transmit force to the workpiece 5 when subjected to the force of the pressing block 7, ensuring the stability of the workpiece during machining. In addition, the clamping end 6 can better engage the surface of the workpiece, preventing the workpiece from sliding or displacing during machining. The entire clamping assembly 3 has a compact structure and is easy to operate, greatly improving the machining efficiency and the quality of the workpiece.

[0026] Further, a clamping transmission surface 15 is arranged on the side of the pressing block 7 close to the clamping block 9. The clamping block 9 protrudes towards the clamping transmission surface 15 to form a clamping transmission end 16. The clamping transmission end 16 is connected to the clamping transmission surface 15. Specifically, in this embodiment, the clamping transmission surface 15 is arranged in a slope structure. During the process of the pressing block 7 being lifted by the first active connecting piece 13, the clamping transmission surface 15 contacts the clamping transmission end 16 of the clamping block 9, thereby driving the clamping block 9 to rotate clockwise. The clamping block 9 rotates towards the workpiece 5 and abuts against the workpiece 5 to perform a clamping action. This structure effectively utilizes the torque of the lifting of the pressing block 7 and converts it into the rotational force of the clamping block 9, further enhancing the stability and reliability of the clamping. In addition, the slope structure of the clamping transmission surface 15 not only reduces the friction between the pressing block 7 and the clamping block 9, but also prolongs the service life of the clamp. In actual operation, this design makes the clamping action smoother, reduces the problem of workpiece deformation caused by uneven clamping force, thereby improving the machining precision and product quality. At the same time, the protruding design of the clamping transmission end 16 facilitates observation and adjustment by the operator, ensuring the safety and efficiency of the clamping process.

[0027] Further, the pressing block 7 is provided with a stepped structure 17 on the side end face close to the positioning plate 1, and the clamping block 9 protrudes to form a retreat transmission end 18 towards the stepped structure 17, which is connected with the stepped structure 17. Specifically, in the embodiment, the retreat transmission end 18 capable of matching the stepped structure 17 is arranged on the clamping block 9, so that the stepped structure 17 drives the clamping block 9 to rotate counterclockwise when the stepped structure 17 is contacted during the pressing process of the pressing block 7, thereby no longer clamping the workpiece 5 to be processed, and facilitating the workpiece 5 to be processed to be taken out or placed in the clamping station 4.

[0028] Further, the first movable connecting piece 13 is a screw, and a screw hole (not shown in the figure) is arranged on the side groove wall of the movable groove 10 close to the positioning plate 1. One end of the first movable connecting piece 13 is screwed into the screw hole and is screwed with the pressing block base 8, and the first movable connecting piece 13 is screwed in or out to drive the pressing block 7 to move in the movable groove 10. Specifically, in the embodiment, the threaded part of the screw matches the thread of the screw hole, which ensures firm connection and flexible adjustment. The movement range of the pressing block 7 in the movable groove 10 is limited by the length of the movable groove 10, so as to prevent the structure from being unstable due to excessive movement. The position of the pressing block 7 can be accurately adjusted by screwing in or out the screw.

[0029] Further, a rotating hole 20 is arranged on the clamping block 9, and the second movable connecting piece 14 is a rotating shaft. One end of the second movable connecting piece 14 is connected with one side groove wall of the movable groove 10, and the other end of the second movable connecting piece 14 is connected with the other side groove wall of the movable groove 10 through the rotating hole 20. Specifically, in the embodiment, the clamping block 9 is rotatably connected with the second movable connecting piece 14 of the rotating shaft structure through the rotating hole 20, so that the clamping block 9 can be flexibly rotated in the movable groove 10, thereby realizing accurate clamping of the workpiece 5 to be processed. The design of the rotating hole 20 ensures the stability of the clamping block 9 during rotation, avoiding clamping failure caused by friction or looseness. The two ends of the rotating shaft are firmly connected with the two side groove walls of the movable groove 10, which ensures the stability and durability of the entire clamping mechanism. Through this structure design, the clamping efficiency is improved, and the service life of the equipment is prolonged.

[0030] Further, the clamping end 6 of the clamping block 9 is provided with a clamping tooth pin 21, the clamping tooth pin 21 has a bite end 22, the bite end 22 is against the workpiece 5 to be processed to clamp and fix the workpiece 5 to be processed. Specifically, in the embodiment, when the bite end 22 of the clamping tooth pin 21 contacts the workpiece 5 to be processed, the bite end 22 can increase the bite force on the workpiece 5 to be processed, so as to ensure that the workpiece does not displace in the processing process. The bite end 22 is triangularly arranged, and the bite end 22 and the workpiece 5 to be processed are in line contact, which not only improves the stability of clamping, but also reduces the damage to the surface of the workpiece. The triangular bite end 22 of the clamping tooth pin 21 can provide uniform clamping force at different angles, and is suitable for workpieces of different shapes and materials. In addition, the line contact mode also effectively reduces the friction force in the clamping process, prolongs the service life of the clamping tooth pin 21.

[0031] Further, the support assembly 2 includes a support pin 23, a limiting pin 24 and a positioning seat 25, the positioning seat 25 is fixed on the positioning plate 1, the clamping station 4 is formed between the positioning seat 25 and the clamping assembly 3, the support pin 23 and the limiting pin 24 are arranged on the part of the positioning plate 1 located in the clamping station 4, the height of the limiting pin 24 is greater than the height of the support pin 23, the bottom surface of the workpiece 5 to be processed is in contact with the support pin 23, and the two side end surfaces of the workpiece 5 to be processed are in contact with the limiting pin 24. Specifically, in the embodiment, the diameter of the support pin 23 is slightly smaller than the bottom surface contact area of the workpiece 5 to be processed, so as to ensure that the workpiece is stable and not easy to slide in the processing process. The length and position of the limiting pin 24 are accurately calculated, which can effectively limit the transverse movement of the workpiece and improve the processing precision.

[0032] Further, the positioning seat 25 is provided with a flat tooth pin (not shown in the figure) on the side end surface close to the workpiece 5 to be processed, and the flat tooth pin is against the workpiece 5 to be processed. Specifically, in the embodiment, the design of the flat tooth pin can increase the bite force of the positioning seat 25 on the workpiece 5 to be processed in the clamping process, so as to ensure that the workpiece does not displace in the processing process.

[0033] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A back cover joggle fixture, characterized by: The utility model provides a positioning plate and the clamping mechanism set on the positioning plate, the clamping mechanism includes support assembly and at least one clamping assembly, the support assembly and clamping assembly form the clamping station between, the workpiece to be processed is placed in the clamping station, the support assembly is connected with the workpiece to be processed and supports the workpiece to be processed, the clamping assembly has the clamping end, and the clamping end rotates towards the workpiece to be processed and clamps the workpiece to be processed.

2. The back cover joggle fixture of claim 1, wherein: The clamping assembly includes a pressing block, a pressing block base and a clamping block, the pressing block base is arranged on the positioning plate, the movable slot is formed on the pressing block base, the movable slot has the clamping opening arranged towards the workpiece to be processed and the pressing block movable opening away from the positioning plate, the pressing block and the clamping block are arranged in the movable slot, the first movable connecting piece and the second movable connecting piece are arranged in the movable slot, one end of the first movable connecting piece passes through the pressing block and is movably connected with the pressing block base on the side slot wall close to the positioning plate, the second movable connecting piece is arranged on the slot wall of the movable slot, the clamping block is rotatably arranged on the second movable connecting piece, one end of the clamping block is connected with the pressing block, the clamping end is arranged on the end of the clamping block close to the workpiece to be processed, and the clamping end extends out of the movable slot through the clamping opening and abuts against the workpiece to be processed.

3. The back cover joggle fixture of claim 2, wherein: The side of the pressing block close to the clamping block is provided with a clamping transmission surface, the clamping block protrudes towards the clamping transmission surface to form a clamping transmission end, and the clamping transmission end is connected with the clamping transmission surface.

4. The back cover joggle fixture of claim 2, wherein: The side end surface of the pressing block close to the positioning plate is provided with a stepped structure, the clamping block protrudes towards the stepped structure to form a retreat transmission end, and the retreat transmission end is connected with the stepped structure.

5. The back cover joggle fixture of claim 2, wherein: The first movable connecting piece is a screw, a screw hole is formed on the side slot wall of the movable slot close to the positioning plate, one end of the first movable connecting piece passes through the pressing block and is threadedly connected with the pressing block base in the screw hole, and rotating the first movable connecting piece in or out drives the pressing block to move in the movable slot.

6. The back cover joggle fixture of claim 2, wherein: A rotating hole is formed on the clamping block, the second movable connecting piece is a rotating shaft, one end of the second movable connecting piece is connected with the side slot wall of the movable slot, and the other end of the second movable connecting piece passes through the rotating hole and is connected with the other side slot wall of the movable slot.

7. The back cover joggle fixture of claim 2, wherein: The clamping end of the clamping block is provided with a clamping tooth pin, the clamping tooth pin has a biting end, and the biting end abuts against the workpiece to be processed to clamp and fix the workpiece to be processed.

8. The back cover joggle fixture of claim 1, wherein: The support assembly includes a support pin, a limiting pin and a positioning seat, the positioning seat is fixed on the positioning plate, the clamping station is formed between the positioning seat and the clamping assembly, the support pin and the limiting pin are arranged on the part of the positioning plate in the clamping station, the height of the limiting pin is greater than the height of the support pin, the bottom surface of the workpiece to be processed is connected with the support pin, and the two side end surfaces of the workpiece to be processed are connected with the limiting pin.

9. The back cover joggle fixture of claim 8, wherein: The side end surface of the positioning seat close to the workpiece to be processed is provided with a flat tooth pin, and the flat tooth pin abuts against the workpiece to be processed.

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