Fixing clamp for bipolar plate processing

Abstract

The utility model discloses a stationary fixture for bipolar plate processing, which belongs to the technical field of bipolar plate processing, and comprises a box body, an electric push rod is fixedly connected in the box body, the bottom end of the electric push rod is fixedly connected with a moving plate, four connecting rods are hinged to the top of the moving plate, one end of each connecting rod is hinged with a sliding rod, and the other end of each connecting rod is hinged with a sliding rod. The number of the sliding rods is four. According to the fixing clamp for bipolar plate machining, L-shaped clamping plates, an electric push rod, a movable plate, a connecting rod and a sliding rod are arranged, when the fixing clamp is used, a bipolar plate is arranged between the two L-shaped clamping plates, the electric push rod is started to drive the movable plate to move downwards, and the movable plate can pull the sliding rod and the L-shaped clamping plates to move through the connecting rod; according to the bipolar plate clamping device, the two L-shaped clamping plates are made to get close to each other, so that a bipolar plate is clamped and fixed, the phenomenon that the bipolar plate shakes in the machining process is avoided by clamping and fixing the bipolar plate, and then the machining precision is improved.

Description

Technical Field

[0001] This utility model belongs to the field of bipolar plate processing technology, specifically a fixing fixture for bipolar plate processing. Background Technology

[0002] Bipolar plates, also known as current collectors, are one of the important components of fuel cells. They have the following functions and properties: separating fuel and oxidant, preventing gas permeation, collecting and conducting current, and having high electrical conductivity. The designed and processed flow channels can evenly distribute gas to the electrode reaction layer for electrode reaction. If bipolar plates are not fixed during processing, they will wobble, resulting in reduced processing accuracy. Therefore, it is necessary to propose a fixing fixture for bipolar plate processing to solve the above problems. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a fixing fixture for bipolar plate processing, which solves the problem that if the bipolar plate is not fixed during processing, it will shake, resulting in a decrease in processing accuracy.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fixing fixture for bipolar plate processing, comprising a housing, an electric push rod fixedly connected inside the housing, a movable plate fixedly connected to the bottom end of the electric push rod, four connecting rods hinged to the top of the movable plate, a sliding rod hinged to one end of each connecting rod, and four sliding rods in total, with L-shaped clamps fixedly connected to the top ends of two sliding rods, two sliding grooves formed on the housing, the sliding rods slidably connected inside the sliding grooves, and the L-shaped clamps located at the top of the housing.

[0005] As a further embodiment of this utility model: a screw is threadedly connected to the L-shaped clamp, and a pressure plate is rotatably connected to the bottom end of the screw.

[0006] As a further embodiment of this utility model: a nut is fixedly connected to the top of the screw, and the nut has several grooves.

[0007] As a further embodiment of this utility model: a plastic pad is fixedly connected to the bottom of the pressure plate, and the movable plate is located inside the box.

[0008] As a further embodiment of this utility model: the number of L-shaped clamps is two, and the two L-shaped clamps are symmetrically arranged about the middle of the box.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. This clamping fixture for bipolar plate processing comprises L-shaped clamping plates, an electric push rod, a moving plate, a connecting rod, and a sliding rod. In use, the bipolar plate is placed between the two L-shaped clamping plates. Activating the electric push rod lowers the moving plate, which in turn pulls the sliding rod and L-shaped clamping plates together via the connecting rod, bringing the two L-shaped clamping plates closer together to clamp and fix the bipolar plate. When the bipolar plate needs to be removed, activating the electric push rod raises the moving plate, which in turn pushes the sliding rod and L-shaped clamping plates together via the connecting rod, moving the two L-shaped clamping plates away from each other to release the bipolar plate. By clamping and fixing the bipolar plate, the fixture prevents wobbling during processing, thereby improving processing accuracy.

[0011] 2. This fixing fixture for bipolar plate processing, by setting up a screw, nut, and pressure plate, allows the bipolar plate to be clamped and fixed by the two L-shaped clamping plates approaching each other. Rotating the nut drives the screw to rotate. Since the screw is threaded onto the L-shaped clamping plates, the rotation of the screw drives the pressure plate to move downward, bringing it closer to the bipolar plate and pressing it tightly. When it is necessary to remove the bipolar plate, rotating the nut in the opposite direction drives the screw to rotate, causing the screw to move the pressure plate upward, moving it away from the bipolar plate and releasing it. Based on the clamping and fixing of the bipolar plate by the two L-shaped clamping plates, the screw drives the pressure plate to move downward and press the bipolar plate tightly, thereby further improving the stability of the bipolar plate. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a structural schematic diagram of the cross-section of the box body of this utility model;

[0014] Figure 3 This is a three-dimensional structural diagram of the L-shaped clamp of this utility model;

[0015] Figure 4 This is a three-dimensional structural diagram of the pressure plate of this utility model;

[0016] In the diagram: 1. Box body; 2. L-shaped clamp; 3. Slide groove; 4. Screw; 5. Electric push rod; 6. Connecting rod; 7. Sliding rod; 8. Moving plate; 9. Nut; 10. Pressure plate; 11. Plastic pad. Detailed Implementation

[0017] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0018] like Figure 1-4As shown, this utility model provides a technical solution: a fixing fixture for bipolar plate processing, including a housing 1, an electric push rod 5 fixedly connected inside the housing 1, a movable plate 8 fixedly connected to the bottom end of the electric push rod 5, four connecting rods 6 hinged to the top of the movable plate 8, a screw 4 threadedly connected to an L-shaped clamping plate 2, and a pressure plate 10 rotatably connected to the bottom end of the screw 4. Because of the pressure plate 10, the rotation of the screw 4 drives the pressure plate 10 to move down and press the bipolar plate, thereby further improving the stability of the bipolar plate.

[0019] One end of the connecting rod 6 is hinged to a sliding rod 7. There are four sliding rods 7. The top ends of two sliding rods 7 are fixedly connected to L-shaped clamps 2. There are two L-shaped clamps 2. The two L-shaped clamps 2 are symmetrically arranged about the middle of the box body 1.

[0020] Two sliding grooves 3 are provided on the housing 1. Because of the sliding grooves 3, when the L-shaped clamp 2 moves, the sliding rod 7 will slide in the sliding grooves 3. The sliding grooves 3 play a role in limiting the sliding rod 7 and the L-shaped clamp 2, thereby improving the stability of the L-shaped clamp 2 and the sliding rod 7 when they move. The sliding rod 7 is slidably connected inside the sliding grooves 3. A plastic pad 11 is fixedly connected to the bottom of the pressure plate 10. Because of the plastic pad 11, when the pressure plate 10 moves down to press the bipolar plate, the plastic pad 11 is relatively soft and can protect the bipolar plate, reducing the damage to the bipolar plate. The moving plate 8 is located inside the housing 1.

[0021] The L-shaped clamp 2 is located on the top of the box 1. The top of the screw 4 is fixedly connected to the nut 9. The nut 9 has several grooves. Because the nut 9 has several grooves, it can increase friction and make it easier for people to rotate the nut 9, thereby improving the ease of operation.

[0022] The working principle of this utility model is as follows:

[0023] In use, place the bipolar plate between the two L-shaped clamps 2. Then, start the electric push rod 5 to move the moving plate 8 downward. The moving plate 8 will pull the sliding rod 7 and the L-shaped clamps 2 through the connecting rod 6, so that the two L-shaped clamps 2 move closer to each other and clamp the bipolar plate. Then, turn the nut 9 to drive the screw 4 to rotate. Since the screw 4 is threaded to the L-shaped clamps 2, when the screw 4 rotates, it can drive the pressure plate 10 to move downward, so that the pressure plate 10 moves closer to the bipolar plate and presses the bipolar plate tightly.

[0024] When it is necessary to remove the bipolar plate, rotate the nut 9 in the opposite direction to drive the screw 4 to rotate, so that the screw 4 drives the pressure plate 10 to move upward, so that the pressure plate 10 moves away from the bipolar plate and thus loosens the bipolar plate. Then, start the electric push rod 5 to drive the moving plate 8 to move upward. The moving plate 8 will push the sliding rod 7 and the L-shaped clamp 2 through the connecting rod 6 to move, so that the two L-shaped clamps 2 move away from each other and thus loosens the bipolar plate. At this time, the bipolar plate can be removed.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A fixture for bipolar plate processing comprising a box (1), characterized in that: An electric push rod (5) is fixedly connected inside the box (1). A movable plate (8) is fixedly connected to the bottom of the electric push rod (5). Four connecting rods (6) are hinged to the top of the movable plate (8). A sliding rod (7) is hinged to one end of each connecting rod (6). There are four sliding rods (7). An L-shaped clamp (2) is fixedly connected to the top of two sliding rods (7). Two sliding grooves (3) are opened on the box (1). The sliding rods (7) are slidably connected inside the sliding grooves (3). The L-shaped clamp (2) is located at the top of the box (1).

2. The fixture for bipolar plate machining according to claim 1, wherein: The L-shaped clamp (2) is threaded with a screw (4), and the bottom end of the screw (4) is rotatably connected to a pressure plate (10).

3. The fixture for bipolar plate machining according to claim 2, wherein: The top end of the screw (4) is fixedly connected to a nut (9), and the nut (9) has several grooves.

4. The fixture for bipolar plate machining according to claim 2, wherein: The bottom of the pressure plate (10) is fixedly connected to a plastic pad (11), and the movable plate (8) is located inside the box (1).

5. The fixture for bipolar plate machining according to claim 1, wherein: The number of L-shaped clamps (2) is two, and the two L-shaped clamps (2) are symmetrically arranged about the middle of the box body (1).

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