An electromagnetic forming device for titanium bipolar plates in hydrogen fuel cells

Abstract

This utility model relates to the field of titanium bipolar plate processing and discloses an electromagnetic forming device for titanium bipolar plates in hydrogen fuel cells. The device includes a processing table, a supporting plate fixedly connected to the upper surface of the processing table, a drive frame mounted on the upper surface of the supporting plate, a lifting device in the middle section of the drive frame, a processing head fixedly mounted at the bottom end of the lifting device, a fixing mechanism on the inner surface of the supporting plate, and an ejection assembly at the lower part of the processing table. The fixing mechanism includes a clamping assembly. In this utility model, with the cooperation of the fixing mechanism, a motor drives a bidirectional threaded rod to move a moving plate, clamping plate one, and clamping plate two to achieve simultaneous clamping of the titanium bipolar plate on four sides. This eliminates the need for manual operation, improving work efficiency and ensuring the titanium bipolar plate is centered and fixed, thus guaranteeing subsequent processing quality. Furthermore, it requires only a single motor drive, reducing costs.

Description

Technical Field

[0001] This utility model relates to the field of titanium bipolar plate processing, and in particular to an electromagnetic forming device for titanium bipolar plates for hydrogen fuel cells. Background Technology

[0002] Hydrogen fuel cells, as a highly efficient and clean energy conversion device, are increasingly widely used in the field of new energy. As one of the core components of hydrogen fuel cells, the forming quality of titanium bipolar plates directly affects the performance and service life of the battery. Electromagnetic forming technology has shown good application prospects in the processing of titanium bipolar plates.

[0003] However, traditional electromagnetic forming equipment for titanium bipolar plates in hydrogen fuel cells has certain shortcomings in practical applications.

[0004] When processing titanium bipolar plates, they need to be fixed. In some small factories, the traditional fixing method is to manually operate the clamps to fix multiple sides of the titanium bipolar plate. This fixing method is cumbersome, wastes time and affects work efficiency, and cannot ensure that the plate is centered, which will affect the subsequent processing quality. Alternatively, multiple cylinders can be used to drive the clamps to hold and fix multiple sides of the titanium bipolar plate. Although this is convenient and can keep the titanium bipolar plate centered, the use and subsequent maintenance of multiple cylinders will incur more costs.

[0005] To address these issues, an electromagnetic forming device for titanium bipolar plates in hydrogen fuel cells is proposed. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides an electromagnetic forming device for titanium bipolar plates in hydrogen fuel cells, which aims to improve the problems of cumbersome manual fixing operations, low efficiency, difficulty in guaranteeing fixing quality, and high cost of using multiple cylinders for fixing in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an electromagnetic forming device for titanium bipolar plates of hydrogen fuel cells, comprising a processing table, a supporting plate fixedly connected to the upper surface of the processing table, a drive frame provided on the upper surface of the supporting plate, a lifting device provided in the middle section of the drive frame, a processing head fixedly installed at the bottom end of the lifting device, a fixing mechanism provided on the inner surface of the supporting plate, and an ejection assembly provided at the lower part of the processing table;

[0008] The fixing mechanism includes a clamping assembly, which includes a movable plate that extends through and is slidably connected to the inner surface of the supporting enclosure. A sleeve is fixedly connected to the left surface of the movable plate, and a sliding rod is elastically connected to the left surface of the movable plate via a compression spring. A clamping plate is fixedly connected to the left surface of the sliding rod.

[0009] As a further description of the above technical solution:

[0010] The fixing mechanism also includes a drive assembly, which includes a motor. The motor is located at the front end of the right surface of the support plate, and the output shaft of the motor is fixedly connected to a bidirectional threaded rod.

[0011] The fixing mechanism also includes a reinforcing component, which includes a second clamping plate that passes through and slides on the left surface of the moving plate. A roller is rotatably connected to the inner surface of the second clamping plate, and a round block is fixedly connected to the right end of the upper surface of the second clamping plate. A sliding groove is provided on the upper surface of the first clamping plate, and an inclined groove is provided on the inner wall of the top of the moving plate.

[0012] As a further description of the above technical solution:

[0013] The ejection assembly includes a support frame, which is fixedly connected to the lower surface of the processing table. A positioning groove is provided through the bottom end of the inner surface of the support frame. A connecting plate is provided at the bottom end of the inner surface of the support frame. A push rod is slidably connected through the inner surface of the processing table. A hinge seat is fixedly connected to the bottom end of the front surface of the push rod.

[0014] As a further description of the above technical solution:

[0015] The movable plate and clamping plate slide on the upper surface of the processing table, and the slide rod passes through and slides on the left surface of the sleeve.

[0016] As a further description of the above technical solution:

[0017] The bidirectional threaded rod passes through and is threadedly connected to the inner surface of the movable plate, and the bidirectional threaded rod passes through and is rotatably connected to the inner surface of the supporting enclosure.

[0018] As a further description of the above technical solution:

[0019] The bottom end of the roller protrudes from the lower surface of the clamping plate 2. The roller rolls on the inner surface of the groove, and the left and right sides of the roller are in contact with the left and right sides of the inner wall of the groove.

[0020] As a further description of the above technical solution:

[0021] The circular block is slidably connected to the inner wall of the inclined groove, which is set to gradually slope to the right from front to back.

[0022] As a further description of the above technical solution:

[0023] The rear end of the connecting plate is hinged to the inner surface of the hinge seat, and a circular protrusion is fixedly connected through the inner surface of the middle section of the connecting plate. The circular protrusion slides on the inner wall of the positioning groove.

[0024] This utility model has the following beneficial effects:

[0025] 1. In this utility model, with the cooperation of the fixing mechanism, the bidirectional threaded rod driven by the motor drives the moving plate, clamping plate one and clamping plate two to achieve synchronous clamping of the titanium bipolar plate on four sides. No manual operation is required, which improves work efficiency and ensures that the titanium bipolar plate is fixed in the center, thereby ensuring the quality of subsequent processing. Moreover, it can be achieved with only a single motor drive, which reduces costs.

[0026] 2. In this utility model, with the cooperation of the ejector component, after processing, pressing down on the connecting plate can lift the ejector rod, which lifts the titanium bipolar plate, making it easy to remove the processed titanium bipolar plate. This solves the problem of the titanium bipolar plate being difficult to remove when it is adsorbed on the processing table, and improves the convenience and practicality of the device. Attached Figure Description

[0027] Figure 1 This is a front view of the three-dimensional structure of the overall device in this utility model;

[0028] Figure 2 This is a three-dimensional structural breakdown diagram of the supporting enclosure and the movable plate in this utility model;

[0029] Figure 3 This is a three-dimensional cross-sectional view of the movable plate and sleeve in this utility model;

[0030] Figure 4 This is a three-dimensional cross-sectional diagram of the clamping plate 2, roller, and clamping plate 1 in this utility model.

[0031] Figure 5 This is a three-dimensional cross-sectional diagram of the processing table and connecting plate in this utility model.

[0032] Legend:

[0033] 1. Machining table; 2. Support panel; 3. Drive frame; 4. Lifting device; 5. Machining head; 61. Motor; 62. Double-ended threaded rod; 71. Sleeve; 72. Compression spring; 73. Slide rod; 74. Clamping plate one; 75. Moving plate; 81. Clamping plate two; 82. Roller; 83. Round block; 801. Slide groove; 802. Inclined groove; 91. Support frame; 92. Connecting plate; 93. Hinge seat; 94. Top rod; 901. Positioning groove. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figures 1-2 This utility model provides an embodiment of an electromagnetic forming device for titanium bipolar plates in hydrogen fuel cells, comprising a processing table 1 for supporting the overall device and the titanium bipolar plates of the hydrogen fuel cells. A supporting enclosure 2 is fixedly connected to the upper surface of the processing table 1. A drive frame 3 is provided on the upper surface of the supporting enclosure 2. The drive frame 3 is capable of lateral movement, and a moving device is provided in the middle section of the drive frame 3, which can move back and forth. The moving device is part of the drive frame 3. A lifting device 4 is provided in the middle section of the drive frame 3, and the lifting device 4 is installed at the bottom end of the moving device. The bottom end of the lifting device 4 is fixed. A processing head 5 for processing bipolar plates is fixedly installed. Under the action of the drive frame 3 and the lifting device 4, the processing head 5 can move flexibly and can process different positions on the bipolar plates. The drive frame 3, the lifting device 4 and the processing head 5 are all existing technologies and can be implemented by those skilled in the art. Since they are existing technologies, they will not be described in detail in this case. The inner surface of the support plate 2 is provided with a fixing mechanism that can automatically clamp and fix multiple surfaces of the bipolar plates at the same time. The lower part of the processing table 1 is provided with an ejection component that facilitates the ejection of the processed bipolar plates.

[0036] Reference Figures 2-4The fixing mechanism includes clamping components, of which two sets are arranged symmetrically about the center line of the supporting plate 2. Each clamping component includes a movable plate 75, which is slidably connected to the inner surface of the supporting plate 2. A through slot is formed on the inner surface of the supporting plate 2. Both the front and rear sections of the movable plate 75 are I-shaped and slidably connected to the slot on the supporting plate 2. A sleeve 71 is fixedly connected to the left surface of the movable plate 75. A sliding rod 73 is elastically connected to the left surface of the movable plate 75 via a compression spring 72. A clamping plate 74 for clamping and fixing the left and right sides of the bipolar plate is fixedly connected to the left surface of the sliding rod 73. The fixing mechanism also includes a driving component, which includes a motor 61 for driving the bidirectional threaded rod 62 to rotate. The motor 61 is located at the front section of the right surface of the supporting plate 2. The output shaft of motor 61 is fixedly connected to a bidirectional threaded rod 62 for driving the moving plate 75 to move. Both motor 61 and bidirectional threaded rod 62 are existing technologies and can be implemented by those skilled in the art. Since they are existing technologies, they will not be described in detail in this case. The fixing mechanism also includes a reinforcing component, which includes a clamping plate 81 for clamping and fixing the front and rear sides of the bipolar plate. The clamping plate 81 passes through and slides on the left surface of the moving plate 75. A roller 82 is rotatably connected to the inner surface of the clamping plate 81. A round block 83 for positioning the clamping plate 81 is fixedly connected to the right end of the upper surface of the clamping plate 81. A groove 801 is opened on the upper surface of the clamping plate 74. The roller 82 and the groove 801 are engaged. An inclined groove 802 is opened on the inner wall of the top of the moving plate 75. The round block 83 and the inclined groove 802 are engaged.

[0037] Reference Figures 2-4 The movable plate 75 and clamping plate 74 slide on the upper surface of the machining table 1, and clamping plate 81 also slides on the upper surface of the machining table 1. The lower surfaces of the movable plate 75, clamping plate 74, and clamping plate 81 are all in contact with the upper surface of the machining table 1. The sliding rod 73 passes through and is slidably connected to the left surface of the sleeve 71. When the sliding rod 73 moves to the right, it will compress the spring 72 to generate a reaction force. The bidirectional threaded rod 62 passes through and is threadedly connected to the inner surface of the movable plate 75. The outer wall of the bidirectional threaded rod 62 has two sets of left-right symmetrical grooves with opposite directions, with its center line as the axis, for... Two sets of moving plates 75 are driven to open or move closer simultaneously. A bidirectional threaded rod 62 passes through and is rotatably connected to the inner surface of the supporting enclosure 2. The bottom end of the roller 82 protrudes from the lower surface of the clamping plate 81. The roller 82 rolls on the inner surface of the slide groove 801, and the left and right sides of the roller 82 contact the left and right sides of the inner wall of the slide groove 801. The roller 82 will move along the trajectory of the slide groove 801. The round block 83 is slidably connected to the inner wall of the inclined groove 802. The inclined groove 802 is set to gradually tilt to the right from front to back. When the inclined groove 802 moves, it will squeeze the round block 83 to make it move in the front and back direction.

[0038] Reference Figure 1 , Figure 5The ejector assembly includes a support frame 91, which is fixedly connected to the lower surface of the processing table 1. A positioning groove 901 is provided through the bottom end of the inner surface of the support frame 91. A connecting plate 92 is provided at the bottom end of the inner surface of the support frame 91. A push rod 94 is slidably connected through the inner surface of the processing table 1. The push rod 94 moves up and down. In the initial position, the upper surface of the push rod 94 is flush with the upper surface of the processing table 1. A hinge seat 93 is fixedly connected to the bottom end of the front surface of the push rod 94. The rear end of the connecting plate 92 is hinged to the inner surface of the hinge seat 93. A circular protrusion is fixedly connected through the inner surface of the middle section of the connecting plate 92. The circular protrusion slides on the inner wall of the positioning groove 901. The front-to-back span of the positioning groove 901 is greater than that of the circular protrusion. The connecting plate 92 can rotate about the circular protrusion as an axis and can move slightly back and forth along the trajectory of the positioning groove 901.

[0039] Working principle: The motor 61 drives the bidirectional threaded rod 62 to rotate. The rotating bidirectional threaded rod 62 will drive the two sets of moving plates 75 to move closer synchronously. The moving plates 75 will push the clamping plate 74 to contact the left and right sides of the titanium bipolar plate. At this time, the bidirectional threaded rod 62 will continue to rotate, so that the moving plates 75 and the clamping plate 74 will move closer together. When they move closer together, the slide rod 73 will gradually retract into the sleeve 71 and squeeze the compression spring 72 to generate a reaction force. The clamping plate 81 will also gradually insert into the moving plate 75. The round block 83 will squeeze the inner wall of the inclined groove 802. Under the influence of the squeezing force, the clamping plates 81 on the front and rear sides will move towards the middle, gradually clamping and fixing the front and rear sides of the titanium bipolar plate, realizing the synchronous clamping of multiple titanium bipolar plates on four sides.

[0040] Then, the drive frame 3, lifting device 4, and processing head 5 are started to process the surface of the titanium bipolar plate.

[0041] After processing, the starter motor 61 drives the bidirectional threaded rod 62 to reverse. The reversed bidirectional threaded rod 62 will cause the two sets of moving plates 75 to open. The moving plates 75 and the clamping plate 74 separate. During the separation process, the round block 83 and the inclined groove 802 will generate opposite-direction compression. The clamping plates 81 on the front and rear sides will open to release the clamping on the front and rear sides of the titanium bipolar plate. Under the continuous reverse action of the bidirectional threaded rod 62, the two sets of clamping plates 74 will also gradually separate to release the clamping on the left and right sides of the titanium bipolar plate.

[0042] Finally, press down on the front end of the connecting plate 92, causing the push rod 94 to move upward and push the processed titanium bipolar plate, making it easier for the staff to remove.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electromagnetic forming apparatus for titanium bipolar plates of hydrogen fuel cells, comprising a processing table (1), characterized in that: The upper surface of the processing table (1) is fixedly connected to a support plate (2), the upper surface of the support plate (2) is provided with a drive frame (3), the middle section of the drive frame (3) is provided with a lifting device (4), the bottom end of the lifting device (4) is fixedly installed with a processing head (5), the inner surface of the support plate (2) is provided with a fixing mechanism, and the lower part of the processing table (1) is provided with an ejection assembly; The fixing mechanism includes a clamping assembly, which includes a movable plate (75) that is slidably connected to the inner surface of the supporting enclosure (2). A sleeve (71) is fixedly connected to the left surface of the movable plate (75), and a slide rod (73) is elastically connected to the left surface of the movable plate (75) via a compression spring (72). A clamping plate (74) is fixedly connected to the left surface of the slide rod (73).

2. The electromagnetic forming equipment for titanium bipolar plates in hydrogen fuel cells according to claim 1, characterized in that: The fixing mechanism also includes a drive assembly, which includes a motor (61). The motor (61) is located at the front section of the right surface of the support plate (2), and the output shaft of the motor (61) is fixedly connected to a bidirectional threaded rod (62). The fixing mechanism also includes a reinforcing component, which includes a second clamping plate (81) that passes through and slides on the left surface of the moving plate (75). A roller (82) is rotatably connected to the inner surface of the second clamping plate (81). A round block (83) is fixedly connected to the right end of the upper surface of the second clamping plate (81). A sliding groove (801) is provided on the upper surface of the first clamping plate (74), and an inclined groove (802) is provided on the inner wall of the top of the moving plate (75).

3. The electromagnetic forming equipment for titanium bipolar plates in hydrogen fuel cells according to claim 1, characterized in that: The ejection assembly includes a support frame (91), which is fixedly connected to the lower surface of the processing table (1). A positioning groove (901) is provided through the bottom end of the inner surface of the support frame (91). A connecting plate (92) is provided at the bottom end of the inner surface of the support frame (91). A push rod (94) is slidably connected through the inner surface of the processing table (1). A hinge seat (93) is fixedly connected to the bottom end of the front surface of the push rod (94).

4. The electromagnetic forming equipment for titanium bipolar plates in hydrogen fuel cells according to claim 1, characterized in that: The movable plate (75) and clamping plate (74) slide on the upper surface of the processing table (1), and the slide rod (73) passes through and slides on the left surface of the sleeve (71).

5. The electromagnetic forming equipment for titanium bipolar plates in hydrogen fuel cells according to claim 2, characterized in that: The bidirectional threaded rod (62) passes through and is threadedly connected to the inner surface of the movable plate (75), and the bidirectional threaded rod (62) passes through and is rotatably connected to the inner surface of the supporting enclosure plate (2).

6. The electromagnetic forming equipment for titanium bipolar plates in hydrogen fuel cells according to claim 2, characterized in that: The bottom end of the roller (82) protrudes from the lower surface of the clamping plate (81), the roller (82) rolls on the inner surface of the groove (801), and the left and right sides of the roller (82) are in contact with the left and right sides of the inner wall of the groove (801).

7. The electromagnetic forming equipment for titanium bipolar plates in hydrogen fuel cells according to claim 2, characterized in that: The circular block (83) is slidably connected to the inner wall of the inclined groove (802), which is set to gradually slope to the right from front to back.

8. The electromagnetic forming equipment for titanium bipolar plates in hydrogen fuel cells according to claim 3, characterized in that: The rear end of the connecting plate (92) is hinged to the inner surface of the hinge seat (93). A circular protrusion is fixedly connected through the inner surface of the middle section of the connecting plate (92). The circular protrusion slides on the inner wall of the positioning groove (901).

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