CN221416520U

CN221416520U - Frock clamp is used in processing of graphite fuel bipolar plate

Info

Publication number: CN221416520U
Application number: CN202323572077.XU
Authority: CN
Inventors: 史禔; 袁映军
Original assignee: Zhejiang Zhisheng Technology Co ltd
Current assignee: Zhejiang Zhisheng Technology Co ltd
Priority date: 2023-12-27
Filing date: 2023-12-27
Publication date: 2024-07-26
Anticipated expiration: 2033-12-27

Abstract

The utility model discloses a tooling fixture for machining a graphite fuel bipolar plate, and relates to the field of machining of graphite fuel bipolar plates. The tooling fixture for machining the graphite fuel bipolar plate comprises a workbench, wherein mounting seats of symmetrical parts are mounted on the top of the workbench; a rubber layer is arranged on one side of the surface of the workbench, which is positioned on the mounting seat, and a protruding block is arranged on the surface of the rubber layer; according to the utility model, the two symmetrically distributed rubber layers are arranged on the top surface of the workbench, the two rubber layers are driven to move relatively through the matching of the moving assembly, the two rubber layers are clamped, fixed and limited on the two side surfaces of the workpiece, in the process, the anti-drop assembly is driven to synchronously operate through a power source generated during movement, the workpiece part which is attached and pressed at the lower pressing plate is locked and reinforced, loosening is prevented, the overall stability of the clamp is further improved, loosening of the workpiece in the processing process is avoided, and meanwhile, a good protection effect is achieved on the workpiece.

Description

Frock clamp is used in processing of graphite fuel bipolar plate

Technical Field

The utility model belongs to the technical field of graphite fuel bipolar plate machining, and particularly relates to a tooling fixture for machining a graphite fuel bipolar plate.

Background

The fuel bipolar plate is one of important parts of the fuel cell, has the functions of separating fuel and oxidant, preventing gas from permeating, collecting and conducting current and the like, adopts compact graphite, is manufactured into a gas flow channel through mechanical processing, and has stable chemical property and small contact resistance.

The utility model provides a graphite fuel bipolar plate need utilize anchor clamps to fix when carrying out processing, for example patent application number CN202320083268.0, application date: 2023-01-29 discloses a frock clamp is used in graphite fuel bipolar plate processing, including the location face, the lower extreme fixedly connected with U type fixed plate that the location face is located central point put, is equipped with pushing equipment on the rear end lateral wall that the location face is located central point put, all is equipped with rectangular opening on the relative lateral wall of the vertical section in U type fixed plate both sides, runs through between two rectangular openings and is equipped with same elevating system. According to the utility model, the fuel bipolar plate is arranged on the buffer pad, the linear guide rail is matched with the movable guide block to drive the two L-shaped clamping blocks to move relatively and clamp the fuel bipolar plate, the second hydraulic cylinder is matched with the linear guide rail to drive the two L-shaped clamping blocks to descend and then position the fuel bipolar plate, so that the clamping stability of the fuel bipolar plate is improved, the displacement in the processing process is avoided, and the first hydraulic cylinder on the L-shaped plate drives the pushing block to push the fuel bipolar plate on the buffer pad to the side of the positioning plate surface, thereby facilitating the rapid replacement of the fuel bipolar plate for processing;

However, the above patent has the following drawbacks that the workpiece can be clamped and fixed by adopting the above technical scheme, but the production cost is higher, a plurality of electric accessory combinations are needed to be matched with each other, the faults are easy to occur, and the maintenance cost is increased.

Disclosure of utility model

The technical problem to be solved by the utility model is to overcome the defects in the prior art, and provide a tooling fixture for machining a graphite fuel bipolar plate, which can overcome the problems or at least partially solve the problems.

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that: the tooling fixture for machining the graphite fuel bipolar plate comprises a workbench, wherein mounting seats of symmetrical parts are mounted on the top of the workbench; a rubber layer is arranged on one side of the surface of the workbench, which is positioned on the mounting seat, and a protruding block is arranged on the surface of the rubber layer; the mounting seat is provided with a moving assembly for driving the rubber layer to clamp and fix the workpiece; the movable assembly is provided with an anti-drop assembly for preventing the rubber layer from shifting when the workpiece is clamped and limited.

Further, the moving assembly comprises a driving part fixed on the mounting seat, a connecting rod is fixed at one end of the driving part, a mounting block is fixed at the end part of the connecting rod, a sliding groove is formed in the top of the mounting seat, the mounting block is slidably connected in the sliding groove, an L-shaped plate is mounted on one side surface of the mounting block, and a telescopic part is arranged on the L-shaped plate.

Further, the telescopic part comprises a clamping block fixed on one side face of the rubber layer, a first sliding rod is fixed on one side face of the clamping block, a first piston is fixed at the end part of the first sliding rod and is slidably connected in a first connecting cylinder, the first connecting cylinder is installed in the L-shaped plate, a reset spring is sleeved on the surface of the first sliding rod, and the end part of the reset spring is fixedly connected with the L-shaped plate and the rubber layer respectively.

Further, the surface of L shaped plate is provided with down the casting die for the work piece centre gripping of adaptation different thickness is spacing, and the casting die includes the second slide bar of sliding connection in L shaped plate, the one end of second slide bar is fixed with the holding down plate, the other end of second slide bar is located L shaped plate internal fixation and has the agreeing with the piece, the surface cover of second slide bar is equipped with extension spring, extension spring's tip is fixed continuous with L shaped plate and holding down plate respectively.

Further, the anticreep subassembly is including fixing the gas-supply pipe in L shaped plate one end, the one end of gas-supply pipe is fixed with the second connecting cylinder, the inside sliding connection of second connecting cylinder has the second piston, a side of second piston is fixed with the third slide bar, the tip of third slide bar is fixed with the movable block.

Further, the moving block is matched with the engaging block, and the moving block is not contacted with the engaging block in the initial state.

Further, the lower pressing plate is made of rubber materials.

Further, an opening is formed in the top surface of the L-shaped plate, and a cover plate is mounted on the top of the L-shaped plate.

After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the two symmetrically distributed rubber layers are arranged on the top surface of the workbench, the two rubber layers are driven to move relatively through the matching of the moving assembly, the two rubber layers are clamped, fixed and limited on the two side surfaces of the workpiece, in the process, the anti-drop assembly is driven to synchronously operate through a power source generated during movement, the workpiece part which is attached and pressed at the lower pressing plate is locked and reinforced, loosening is prevented, the overall stability of the clamp is further improved, loosening of the workpiece in the processing process is avoided, and meanwhile, a good protection effect is achieved on the workpiece.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

In the drawings:

Fig. 1 is a schematic diagram of the overall structure of a tooling fixture for machining a graphite fuel bipolar plate;

fig. 2 is a schematic side sectional structure of a tooling fixture for machining a graphite fuel bipolar plate according to the present utility model;

fig. 3 is an enlarged schematic structural view of a region a in fig. 2 in a tooling fixture for machining a graphite fuel bipolar plate according to the present utility model;

Fig. 4 is a schematic diagram of a whole partial three-dimensional structure of a moving assembly of a tooling fixture for machining a graphite fuel bipolar plate;

Fig. 5 is an enlarged schematic view of the structure of the region B in fig. 2 of the tooling fixture for machining a graphite fuel bipolar plate according to the present utility model.

In the figure: 1. a work table; 2. a mounting base; 3. a rubber layer; 31. a protruding block; 41. a driving section; 42. a connecting rod; 43. a mounting block; 44. a chute; 45. an L-shaped plate; 51. a clamping block; 52. a first slide bar; 53. a first piston; 54. a first connecting cylinder; 55. a return spring; 61. a lower pressing plate; 62. a second slide bar; 63. a tension spring; 64. a fitting block; 71. a gas pipe; 72. a second connecting cylinder; 73. a second piston; 74. a third slide bar; 75. a moving block; 8. an opening; 9. and a cover plate.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

Example 1:

Referring to fig. 1 to 5, a tooling fixture for machining a graphite fuel bipolar plate comprises a workbench 1, and is characterized in that a mounting seat 2 of a symmetrical part is mounted on the top of the workbench 1; a rubber layer 3 is arranged on one side of the surface of the workbench 1, which is positioned on the mounting seat 2, and a protruding block 31 is arranged on the surface of the rubber layer 3; the mounting seat 2 is provided with a moving assembly for driving the rubber layer 3 to clamp and fix a workpiece; the movable assembly is provided with an anti-drop assembly for preventing the rubber layer 3 from shifting when clamping and limiting the workpiece.

According to the utility model, when the graphite fuel bipolar plate workpiece is used, the graphite fuel bipolar plate workpiece is placed on the surface of the workbench 1, then the movable assembly arranged on the mounting seat 2 is utilized to drive the two rubber layers 3 to move relatively, and further, the two side surfaces of the workpiece are clamped and fixed, wherein the protruding blocks 31 arranged on the rubber layers 3 increase the contact surface with the side surfaces of the workpiece, and meanwhile, the side surfaces of the workpiece are not damaged, so that a good protection effect is achieved, the damage of the workpiece during clamping is avoided, the top surface of the side edge of the workpiece can be pressed down for auxiliary limiting in the clamping process, the stability of the whole structure is improved, thus the clamping processing operation of the workpieces with different thicknesses can be handled, the anti-falling assembly is matched to operate, the pressing limiting is carried out on the pressing down, the anti-falling operation is more convenient, and the production cost is effectively saved.

Example 2:

Referring to fig. 1 to 5, a tooling fixture for machining a graphite fuel bipolar plate is basically the same as that of embodiment 1, and further comprises: the moving assembly comprises a driving part 41 fixed on a mounting seat 2, a connecting rod 42 is fixed at one end of the driving part 41, a mounting block 43 is fixed at the end part of the connecting rod 42, a chute 44 is arranged at the top of the mounting seat 2, the mounting block 43 is slidably connected in the chute 44, an L-shaped plate 45 is arranged on one side surface of the mounting block 43, a telescopic part is arranged on the L-shaped plate 45, the telescopic part comprises a clamping block 51 fixed on one side surface of a rubber layer 3, a first slide rod 52 is fixed on one side surface of the clamping block 51, a first piston 53 is fixed at the end part of the first slide rod 52, the first piston 53 is slidably connected in a first connecting cylinder 54, the first connecting cylinder 54 is arranged in the L-shaped plate 45, a return spring 55 is sleeved on the surface of the first slide rod 52, the end part of the return spring 55 is fixedly connected with the L-shaped plate 45 and the rubber layer 3 respectively, a pressing piece is arranged on the surface of the L-shaped plate 45 and used for clamping and limiting workpieces with different thicknesses, the lower pressing piece comprises a second slide bar 62 which is connected in the L-shaped plate 45 in a sliding way, one end of the second slide bar 62 is fixedly provided with a lower pressing plate 61, the other end of the second slide bar 62 is positioned in the L-shaped plate 45 and fixedly provided with an engaging block 64, the surface of the second slide bar 62 is sleeved with an extension spring 63, the end part of the extension spring 63 is fixedly connected with the L-shaped plate 45 and the lower pressing plate 61 respectively, the anti-drop component comprises an air pipe 71 which is fixed at one end of the L-shaped plate 45, one end of the air pipe 71 is fixedly provided with a second connecting cylinder 72, the interior of the second connecting cylinder 72 is slidingly connected with a second piston 73, one side surface of the second piston 73 is fixedly provided with a third slide bar 74, the end part of the third slide bar 74 is fixedly provided with a moving block 75, the moving block 75 is matched with the engaging block 64, the moving block 75 is not contacted with the engaging block 64 in the initial state, the lower pressing plate 61 is made of rubber material, the top surface of the L-shaped plate 45 is provided with an opening 8, the top of the L-shaped plate 45 is fitted with a cover plate 9.

In the utility model, when the clamping device is used, the driving part 41 is started to drive the L-shaped plate 45 at the end part of the mounting block 43 to move, so that the rubber layer 3 at one side of the L-shaped plate 45 synchronously moves to clamp and fix the side surface of a workpiece, when the clamping operation is carried out, the first sliding rod 52 at one side of the clamping block 51 slides in the L-shaped plate 45 under the action of the workpiece, so that the first piston 53 slides in the first connecting cylinder 54, the air in the first connecting cylinder 54 can be slowly extruded out, the clamping operation is more stable, the impact damage to the workpiece caused by the too fast clamping speed is avoided, the bottom surface of the rubber layer 3 is always attached to the top surface of the workbench 1, after the workpiece is processed, the rubber layer 3 can be driven to reset through the reset spring 55, the air in the first connecting cylinder 54 is conveyed to the inside of the second connecting cylinder 72 through the air conveying pipe 71, the second piston 73 can be extruded, the second piston 73 in the second connecting cylinder 72 is enabled to drive the third sliding rod 74 to move, the moving block 75 at the end part of the third sliding rod is contacted with the engaging block 64, the pressing plate 61 is further pressed down, the pressing plate 61 is pressed down, the clamping plate is prevented from being pressed down, the clamping device is prevented from being loosened, the whole clamping device is prevented from being pressed down the side surface of the workpiece is opened, the clamping device is opened, the side surface of the workpiece is opened, the clamping device is opened through the elastic plate is opened, and the clamping device is opened, and the side cover plate is opened through the elastic plate is opened, and the clamping device is used for the clamping device is opened, and the side cover plate is opened.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way, although the present utility model has been described in the preferred embodiments, and is not limited thereto.

Claims

1. The tooling fixture for machining the graphite fuel bipolar plate comprises a workbench (1), and is characterized in that a mounting seat (2) with symmetrical parts is mounted at the top of the workbench (1);

A rubber layer (3) is arranged on one side of the surface of the workbench (1) positioned on the mounting seat (2), and a protruding block (31) is arranged on the surface of the rubber layer (3);

The mounting seat (2) is provided with a moving assembly for driving the rubber layer (3) to clamp and fix a workpiece;

The movable assembly is provided with an anti-drop assembly for preventing the rubber layer (3) from shifting when clamping and limiting a workpiece.

2. The tooling fixture for machining a graphite fuel bipolar plate according to claim 1, wherein: the movable assembly comprises a driving part (41) fixed on a mounting seat (2), a connecting rod (42) is fixed at one end of the driving part (41), a mounting block (43) is fixed at the end part of the connecting rod (42), a sliding groove (44) is formed in the top of the mounting seat (2), the mounting block (43) is slidably connected in the sliding groove (44), an L-shaped plate (45) is mounted on one side surface of the mounting block (43), and a telescopic part is arranged on the L-shaped plate (45).

3. The tooling fixture for machining a graphite fuel bipolar plate according to claim 1, wherein: the telescopic part is including fixing grip block (51) in rubber layer (3) a side, a side of grip block (51) is fixed with first slide bar (52), the tip of first slide bar (52) is fixed with first piston (53), first piston (53) sliding connection is in first connecting cylinder (54), first connecting cylinder (54) are installed in L shaped plate (45), the surface cover of first slide bar (52) is equipped with reset spring (55), the tip of reset spring (55) is fixed continuous with L shaped plate (45) and rubber layer (3) respectively.

4. A tooling fixture for machining a graphite fuel bipolar plate according to claim 3, wherein: the surface of L shaped plate (45) is provided with down the casting die for the work piece centre gripping of the different thickness of adaptation is spacing, and the casting die includes second slide bar (62) of sliding connection in L shaped plate (45), the one end of second slide bar (62) is fixed with holding down plate (61), the other end of second slide bar (62) is located L shaped plate (45) internal fixation and has agrees with piece (64), the surface cover of second slide bar (62) is equipped with extension spring (63), the tip of extension spring (63) is fixed continuous with L shaped plate (45) and holding down plate (61) respectively.

5. The tooling fixture for machining the graphite fuel bipolar plate according to claim 2, wherein: the anti-drop assembly comprises a gas pipe (71) fixed at one end of an L-shaped plate (45), a second connecting cylinder (72) is fixed at one end of the gas pipe (71), a second piston (73) is connected inside the second connecting cylinder (72) in a sliding mode, a third sliding rod (74) is fixed on one side face of the second piston (73), and a moving block (75) is fixed at the end portion of the third sliding rod (74).

6. The tooling fixture for machining the graphite fuel bipolar plate according to claim 5, wherein: the moving block (75) is matched with the engaging block (64), and the moving block (75) is not contacted with the engaging block (64) in the initial state.

7. The tooling fixture for machining the graphite fuel bipolar plate according to claim 4, wherein: the lower pressing plate (61) is made of rubber materials.

8. The tooling fixture for machining the graphite fuel bipolar plate according to claim 2, wherein: an opening (8) is formed in the top surface of the L-shaped plate (45), and a cover plate (9) is arranged at the top of the L-shaped plate (45).