Bipolar plate positioning and gripping fixture

Abstract

The application relates to a bipolar plate positioning and grabbing clamp which adopts the following structure: one end of an elastic supporting structure is movably connected on a clamp base plate; the other end of the elastic supporting structure is fixedly connected with a leveling plate; a plurality of suction disc structures are arranged on the leveling plate; a suction lifting structure is arranged above the suction disc structure; the suction lifting structure drives the suction disc structure; the bipolar plate is adsorbed through the action of the leveling plate; and the elastic supporting structure resets the leveling plate after adsorption is completed. Through the above structure, the technical problem that the precision is not high during the grabbing and placing process of the bipolar plate and directly influences the single-pole plate film hot compressing effect and also influences the single-cell heat sealing effect is solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to a positioning and gripping fixture, and more particularly to a tooling fixture for gripping and aligning the bipolar plates of a fuel cell single cell in the production process of a new energy hydrogen fuel cell single cell. Background Technology

[0002] A fuel cell consists of bipolar plates, a bipolar membrane, and a MEA (Mesh Adhesive Assembly), which are sealed together by heating and compression. Due to the size and shape deformation of the bipolar plates, there is currently no effective tooling for handling them. They are currently placed manually on a heat-applying fixture. However, the deformation of the bipolar plates and the low precision of manual placement directly affect the heat-applying effect of the single-plate membrane and thus the heat-sealing effect of the single cell. Summary of the Invention

[0003] The purpose of this invention is to provide a bipolar plate positioning and gripping fixture that can solve the problems of low precision in the gripping and placement of existing bipolar plates, which directly affects the heat application effect of the monopolar plate film and the heat sealing effect of the single cell.

[0004] To achieve the above objectives, embodiments of the present invention provide a bipolar plate positioning and gripping fixture, characterized in that it comprises:

[0005] Fixture base plate;

[0006] An elastic support structure is movably connected to one end of the elastic support structure on the clamp base plate;

[0007] The flat plate is fixedly connected to the other end of the elastic support structure;

[0008] The suction cup structure consists of several suction cup structures arranged on the flat plate.

[0009] An adsorption lifting structure is provided above the suction cup structure; the adsorption lifting structure drives the suction cup structure; the bipolar plate is adsorbed by the action of the entire plate; after adsorption is completed, the elastic support structure resets the entire plate.

[0010] Furthermore, a connecting seat is fixed above the clamp base plate, and the air distribution blocks are fixed on both sides of the connecting seat on the clamp base plate, and several manual speed control valves are fixed on the air distribution blocks.

[0011] Furthermore, the platform is disposed below the bipolar plate.

[0012] Furthermore, the elastic support structure is symmetrically arranged along the central axis of the clamp seat plate.

[0013] Furthermore, the elastic support structure also includes:

[0014] The first leveling guide bearing is fixed on the fixture base plate.

[0015] The first leveling guide rod is movably connected within the first leveling guide bearing; one end of the first leveling guide rod passes through a through hole in the suction cup fixing plate and is then fixedly connected to the leveling plate.

[0016] The first floating amount adjustment nut is threadedly connected to one end of one of several first leveling guide rods on both sides of the clamp seat plate.

[0017] A spring is fitted onto several leveling guide rods on both sides of the clamping base plate between the clamping base plate and the leveling plate.

[0018] Furthermore, the suction cup structure also includes:

[0019] A sponge suction cup adjustment plate is attached to both sides of the suction cup fixing plate, and one end of the sponge suction cup adjustment plate is fixed on the suction cup fixing plate.

[0020] A sponge suction cup is fixed to the other end of the sponge suction cup adjustment plate; one end of the sponge suction cup passes through a circular hole provided on the flat plate; one end of the sponge suction cup is attached to the bipolar plate.

[0021] A Bernoulli suction cup, wherein several Bernoulli suction cups are fixed on the suction cup fixing plate; the Bernoulli suction cups pass through circular holes provided on the plate, and one end of the Bernoulli suction cups is attached to the bipolar plate.

[0022] The sponge suction cups are disposed at both ends of the bipolar plate; the Bernoulli suction cups are disposed along the edge of the bipolar plate.

[0023] Furthermore, grooves are formed on the flat plate between the Bernoulli suction cups to connect them.

[0024] Furthermore, the adsorption lifting structure also includes:

[0025] An adsorption lifting cylinder is fixed below the clamp seat plate; the entire plate is connected to the piston rod of the adsorption lifting cylinder.

[0026] The second leveling guide bearing is located on the clamp seat plate on both sides of the adsorption lifting cylinder; several of the second leveling guide bearings are fixed on the same straight line as the first leveling guide bearing.

[0027] The second leveling guide rod is movably connected within the second leveling guide bearing; one end of the second leveling guide rod is fixed to the suction cup fixing plate.

[0028] Furthermore, the connecting seat is connected to the part-removing device; the manual speed control valve is connected to the sponge suction cup and Bernoulli suction cup via an air pipe; and one end of the air distribution block is connected to the vacuum system.

[0029] Furthermore, a groove positioning hole is formed along the edge of the bipolar plate on the platform for positioning the bipolar plate.

[0030] Compared with the prior art, the embodiments of the present invention employ a method in which one end of an elastic support structure is movably connected to a clamping base plate; a flat plate is fixedly connected to the other end of the elastic support structure; several suction cup structures are arranged on the flat plate; an adsorption lifting structure is arranged above the suction cup structures; the adsorption lifting structure drives the suction cup structures; the bipolar plate is adsorbed under the action of the flat plate; and the elastic support structure resets the flat plate after adsorption is completed. This structure solves the technical problems of low precision in the gripping and placement of bipolar plates in existing technologies, which directly affect the heat-coating effect of the monopolar plate film and also the heat-sealing effect of the single cell. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0032] Figure 2 for Figure 1 A structural diagram from the main view direction;

[0033] Figure 3 for Figure 1 A top-view structural diagram;

[0034] Figure 4 for Figure 1 A schematic diagram of the structure of the flat plate from a top-down view. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the various embodiments of this invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this invention to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0036] Embodiments of the present invention relate to a bipolar plate positioning and gripping fixture, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, it includes:

[0037] In this embodiment, the clamp base plate 2 serves as the mounting frame;

[0038] One end of the elastic support structure 100 is movably connected to the fixture base plate 2; the elastic support structure 100 makes the plate 12 elastic when picking up the bipolar plate, and at the same time, it makes the plate 12 have a rebound effect after the bipolar plate 10 is placed. The other end of the elastic support structure 100 is fixedly connected to the plate 12; the function of the plate 12 is to flatten the bipolar plate 10 and hold the bipolar plate 10 when picking up and placing it.

[0039] Several suction cup structures 200 are set on the flat plate 12. The suction cup structures 200 are mainly used to hold the bipolar plate 10 during the picking and placing process, and to keep the bipolar plate 10 itself from deforming during the transportation process.

[0040] An adsorption lifting structure 300 is positioned above the suction cup structure 200. The adsorption lifting structure 300 drives the suction cup structure 200, and the bipolar plate 10 is adsorbed under the action of the flat plate 12. After adsorption, the elastic support structure 200 resets the flat plate 12. This structure solves the technical problems of low precision in the gripping and placement of existing bipolar plates, which directly affects the heat-coating effect of the monopolar plate film and the heat-sealing effect of the single cell.

[0041] To achieve the aforementioned technical effects, the bipolar plate positioning and gripping fixture in this embodiment, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a connecting seat 1 is fixed above the clamp base plate 2. On the clamp base plate 2, air distribution blocks 17 are fixed on both sides of the connecting seat 1. Several manual speed regulating valves 18 are fixed on the air distribution blocks 17. The air distribution blocks 17 are mainly used to distribute vacuum to the suction cup structure 200, and the manual speed regulating valves 18 are used to adjust the vacuum pressure of each suction cup.

[0042] To achieve the aforementioned technical effects, the bipolar plate positioning and gripping fixture in this embodiment, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a platform 11 is provided below the bipolar plate 10. The platform 11 is mainly used to position the bipolar plate 10, ensuring that the bipolar plate 10 remains flat and undeformed before being picked up.

[0043] To achieve the aforementioned technical effects, the bipolar plate positioning and gripping fixture in this embodiment, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the elastic support structure 100 is symmetrically arranged along the central axis of the clamp base plate 2. This is mainly to maintain balance during the picking of the bipolar plate 10, thus ensuring the flatness of the bipolar plate 10.

[0044] To achieve the aforementioned technical effects, the bipolar plate positioning and gripping fixture in this embodiment, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the elastic support structure 100 also includes:

[0045] Several first leveling guide bearings 15 are fixed on the fixture base plate 2; the first leveling guide bearings 15 are used to slide the first leveling guide rod 14.

[0046] The first leveling guide rod 14 is movably connected within the first leveling guide bearing 15; one end of the first leveling guide rod 14 passes through the through hole 61 opened on the suction cup fixing plate 6 and is fixedly connected to the leveling plate 12; the first leveling guide rod 14 is used to connect the leveling plate 12.

[0047] A floating amount adjusting nut 16 is threadedly connected to one end of several first leveling guide rods 14 on both sides of the clamp base plate 2; the first floating amount adjusting nut 16 is used to prevent it from coming off the clamp base plate 2.

[0048] Between the fixture base plate 2 and the flat plate 12, springs 13 are fitted onto several leveling guide rods 14 on both sides of the fixture base plate 2. The springs 13 cause the flat plate 12 to spring back.

[0049] To achieve the aforementioned technical effects, the bipolar plate positioning and gripping fixture in this embodiment, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the suction cup structure 200 also includes:

[0050] On both sides of the suction cup fixing plate 6, one end of the sponge suction cup adjusting plate 8 is fixed on the suction cup fixing plate 6; the sponge suction cup adjusting plate 8 is used to install the sponge suction cup 9;

[0051] A sponge suction cup 9 is fixed on the other end of the sponge suction cup adjustment plate 8; one end of the sponge suction cup 9 passes through the round hole 121 set on the flat plate 12; one end of the sponge suction cup 9 is attached to the bipolar plate 10; the sponge suction cup 9 is used to pick up both ends of the bipolar plate 10.

[0052] Several Bernoulli suction cups 7 are fixed on the suction cup fixing plate 6; the Bernoulli suction cups 7 pass through the round holes 121 set on the flat plate 12, and one end of the Bernoulli suction cup 7 is attached to the bipolar plate 10; the Bernoulli suction cups 7 are used to pick up the thinner frame after the bipolar plate 10 is hollowed out.

[0053] The sponge suction cups 9 are positioned at both ends of the bipolar plate 10; the Bernoulli suction cups 7 are positioned along the edge of the bipolar plate 10.

[0054] To achieve the aforementioned technical effects, the bipolar plate positioning and gripping fixture in this embodiment, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, grooves 122 are formed on the flat plate 12 between the Bernoulli suction cups 7, connecting them. This allows the grooves 122 to balance the vacuum level during the suction of the bipolar plate 10, ensuring a consistent vacuum level and preventing deformation of the bipolar plate 10. This effectively solves the technical problem of low precision in the gripping and placement of existing bipolar plates 10, which directly affects the heat application effect of the monopolar film and the heat sealing effect of the single cell.

[0055] To achieve the aforementioned technical effects, the bipolar plate positioning and gripping fixture in this embodiment, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the adsorption lifting structure 300 also includes:

[0056] The cylinder body of the adsorption lifting cylinder 3 is fixed below the clamp base plate 2; the entire plate 12 is connected to the piston rod of the adsorption lifting cylinder 3; the adsorption lifting cylinder 3 is used to control the up and down movement of the entire plate 12.

[0057] On the clamp base plate 2, on both sides of the adsorption lifting cylinder 3, several second leveling guide bearings 151 are fixed on the same straight line as the first leveling guide bearing 15; the second leveling guide bearings 151 are used to movably connect the second leveling guide rod 141.

[0058] A second leveling guide rod 141 is movably connected within the second leveling guide bearing 151; one end of the second leveling guide rod 141 is fixed to the suction cup fixing plate 6. The second leveling guide rod 141 is used to guide the suction cup fixing plate 6, providing precise guidance.

[0059] To achieve the aforementioned technical effects, the bipolar plate positioning and gripping fixture in this embodiment, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the connecting seat 1 is connected to the part-retrieving device; the part-retrieving device is generally such as a robot or module; the manual speed control valve 18 is connected to the sponge suction cup 9 and the Bernoulli suction cup 7 through an air pipe; one end of the air distribution block 17 is connected to the vacuum system. The manual speed control valve 18 is used to adjust the pressure of each sponge suction cup 9 and Bernoulli suction cup 7.

[0060] To achieve the aforementioned technical effects, the bipolar plate positioning and gripping fixture in this embodiment, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a groove positioning hole 111 is formed on the platform 11 along the edge of the bipolar plate 10 for positioning the bipolar plate 10. The groove positioning hole 111 formed on the platform 11 along the edge of the bipolar plate 10 ensures that the bipolar plate 10 is flat and does not deform before being picked up.

[0061] The bipolar plate positioning and gripping fixture operation process in this embodiment is described in detail below:

[0062] The bipolar plate positioning and gripping fixture in this embodiment is connected to the robot or module via the connecting seat 1, and the bipolar plate 10 is placed on the platform 11.

[0063] Leveling of bipolar plate 10: The robot or module drives the bipolar plate positioning and gripping fixture in this embodiment to move downwards, and the leveling plate 12 presses the bipolar plate 10, completing the leveling of the bipolar plate 10. The flatness of the leveling plate 12 can be ensured by equipment processing. The leveling plate 12 is equipped with a floating spring 13 to ensure that the bipolar plate 10 will not be damaged.

[0064] After the flat plate 12 presses the bipolar plate 10 to complete the temporary flatness repair, the adsorption lifting cylinder 3 extends the Bernoulli suction cup 7 to complete the non-contact adsorption of the bipolar plate 10.

[0065] The adsorption bipolar plate 10 is placed in the designated position, and the adsorption lifting cylinder 13 is reset.

[0066] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes in form and detail may be made without departing from the spirit and scope of the present invention.

Claims

1. A bipolar plate positioning and gripping fixture, characterized by, The utility model relates to a kind of bipolar plate suction device, including: Clamp seat plate; Resilient support structure, one end of the resilient support structure is movably connected on the clamp seat plate; Leveling plate, the other end of the resilient support structure is fixedly connected with the leveling plate; Sucker structure, several sucker structures are arranged on the leveling plate; The sucker structure includes: Bernoulli suction cup, several Bernoulli suction cups are fixed on the suction cup fixing plate;The Bernoulli suction cup passes through the round hole arranged on the leveling plate, one end of the Bernoulli suction cup is attached to the bipolar plate; Suction lifting structure, the suction lifting structure is arranged above the sucker structure;The suction lifting structure drives the sucker structure; The suction lifting structure further includes: Suction lifting cylinder, the cylinder body of the suction lifting cylinder is fixed below the clamp seat plate;The piston rod of the suction lifting cylinder is connected with the leveling plate; The bipolar plate is adsorbed by the action of the leveling plate;The resilient support structure resets the leveling plate after adsorption is completed.

2. The bipolar plate positioning and gripping fixture of claim 1, wherein, The connecting seat is fixed above the clamp seat plate, the gas distribution blocks are fixed on both sides of the connecting seat on the clamp seat plate, and the manual speed regulating valves are fixed on the gas distribution blocks.

3. The bipolar plate positioning and gripping fixture of claim 1, wherein, The platform is arranged below the bipolar plate.

4. The bipolar plate positioning and gripping fixture of claim 1, wherein, The resilient support structure is symmetrically arranged along the central axis of the clamp seat plate.

5. The bipolar plate positioning and gripping fixture of claim 4, wherein, The resilient support structure further includes: First leveling guide bearing, several first leveling guide bearings are fixed on the clamp seat plate; First leveling guide rod, the first leveling guide rod is movably connected in the first leveling guide bearing;One end of the first leveling guide rod passes through the through hole arranged on the suction cup fixing plate and is fixedly connected with the leveling plate; First floating amount adjusting nut, the first floating amount adjusting nut is threadedly connected on one end of the first leveling guide rod on both sides of the clamp seat plate; Spring, the spring is sleeved on the first leveling guide rod on both sides of the clamp seat plate between the clamp seat plate and the leveling plate.

6. The bipolar plate positioning and gripping fixture of claim 1, wherein, The sucker structure further includes: Sponge suction cup adjusting plate, one end of the sponge suction cup adjusting plate is fixed on both sides of the suction cup fixing plate on the suction cup fixing plate; Sponge suction cup, the sponge suction cup is fixed on the other end of the sponge suction cup adjusting plate;One end of the sponge suction cup passes through the round hole arranged on the leveling plate;One end of the sponge suction cup is attached to the bipolar plate; The sponge suction cup is arranged at both ends of the bipolar plate;The Bernoulli suction cup is arranged along the frame of the bipolar plate.

7. The bipolar plate positioning and gripping fixture of claim 6, wherein, Groove is arranged on the leveling plate between the Bernoulli suction cups, and the Bernoulli suction cups are connected through the groove.

8. The bipolar plate positioning and gripping fixture of claim 1, wherein, The suction lifting structure further includes: Second leveling guide bearing, several second leveling guide bearings are fixed on both sides of the suction lifting cylinder on the clamp seat plate;The second leveling guide bearings are fixed on the same straight line of the first leveling guide bearings of the resilient support structure. A second leveling guide bar is movably connected in the second leveling guide bearing; one end of the second leveling guide bar is fixed on the suction disc fixed plate.

9. The bipolar plate positioning and gripping fixture of claim 2, wherein, The connecting seat is connected with a taking device; the manual speed regulating valve is connected with the sponge suction disc and the Bernoulli suction disc through an air pipe; one end of the gas distribution block is connected with a vacuum system.

10. The bipolar plate positioning and gripping fixture of claim 3, wherein, Groove positioning holes are formed on the platform along the frame of the bipolar plate for positioning the bipolar plate.

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