Limiting clamp for bipolar plate processing

Abstract

The limiting clamp comprises a bottom plate, sliding groove openings are formed in the left end wall and the right end wall of the interior of the bottom plate, sliding blocks are installed in the sliding groove openings, sliding ways communicated with the sliding groove openings are formed in the positions, close to the upper end walls of the sliding groove openings, of the bottom plate, and the number of the sliding blocks is two. The upper ends of the two sliding blocks are provided with a left sliding base and a right sliding base which are used for clamping the bipolar plate in a wrapping mode respectively, the upper end wall of the right sliding base is provided with two inlets, the right sliding base is hollow, the number of the inlets is two, and a hollow inner cavity of the right sliding base is communicated with the two inlets to form a circulation cavity channel. The limiting clamp for bipolar plate processing has the beneficial effects that the left sliding seat, the right sliding seat, the lead screw and the abutting piece are matched for use, the front side wall, the rear side wall, the left side wall and the right side wall of the bipolar plate are clamped to form a wrapping clamping shape, then the screws are tightened, and the left sliding seat and the right sliding seat of which the positions are adjusted are locked and limited, so that subsequent stable processing treatment, such as dispensing processing, of the bipolar plate is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of limiting clamps, in particular to a limiting clamp for bipolar plate processing. Background Art

[0002] The bipolar plate, also known as the current collecting plate, is one of the important components of the fuel cell and has the following functions and properties: separating the fuel and the oxidant to prevent gas from passing through; collecting and conducting current with high conductivity; the designed and processed flow channels can evenly distribute the gas to the reaction layer of the electrode for electrode reaction. When processing the bipolar plate, such as welding or dispensing, a clamp will be used to limit the bipolar plate. This limit clamp is used to limit the bipolar plate.

[0003] The fixture has a simple structure and is used to clamp materials of a single size. However, the bipolar plates have different structures and sizes. When positioning bipolar plates of different sizes, obviously, the sizes of fixtures required for positioning are also different, which leads to poor adaptability of the fixture when used for positioning. When positioning, sometimes the fixture needs to be fixed, such as when the bipolar plate is processed by dispensing. Sometimes the fixture needs to be rotatable, such as when the bipolar plate switches the length and width, adapts to the workstation of the processing table or processing machine, and switches the orientation. Obviously, ordinary fixtures only have simple positioning performance, and their flexibility and convenience when used are poor. Summary of the invention

[0004] The purpose of the present invention is to provide a limiting clamp for bipolar plate processing to solve the problem that the clamp structure proposed in the above background technology is simple and is used to clamp materials of a single size. However, the bipolar plates of the present invention have different structures and sizes. When positioning bipolar plates of different sizes, obviously, the sizes of the clamps required for positioning are also different, which leads to poor adaptability of the clamp when used for positioning. When positioning, sometimes the clamp needs to be positioned still, such as when the bipolar plate is processed by glue dispensing. Sometimes the clamp needs to be rotatable, such as when the bipolar plate switches the length and width, adapts to the workstation of the processing table or processing machine, and switches the orientation. Obviously, ordinary clamps only have simple positioning performance, and their flexibility and convenience when used are poor.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a limiting fixture for bipolar plate processing, comprising a bottom plate, wherein both left and right end walls inside the bottom plate are provided with slide slots, wherein a slider is installed in the slide slot, wherein the bottom plate is provided with a slideway connected to the slide slot near the upper end wall of the slide slot, wherein two sliders are provided, wherein the upper ends of the two sliders are respectively provided with a left slide seat and a right slide seat for enclosing and clamping the bipolar plate, wherein the upper end wall of the right slide seat is provided with an inlet, wherein the right slide seat is hollow inside, wherein two inlets are provided, and wherein the hollow inner cavity of the right slide seat is parallel to the two inlets. The left slide seat is connected to form a circulation cavity, and screw rods are provided at the front and rear end walls of the left slide seat, and a butt plate is installed at the end wall of the screw rod near the center of the left slide seat, and a notch for accommodating the butt plate is opened on the end wall of the left slide seat near the butt plate, and screws are provided at the top walls of the left and right slide seats, and an opening is relatively opened at the upper end of the bottom plate near the edge end wall, and a sliding plate opening is opened at the end wall of the bottom plate near the bottom of the opening, a side plate is installed on the inner side of the sliding plate opening, and a side plate is installed on the side end wall of the side plate, and a dish groove for storing impurities is opened on the upper end wall of the side plate.

[0006] Preferably, an opening is provided at the center end wall of the bottom of the base plate, a top opening is provided at the center end wall of the top of the base plate, a through opening is relatively provided at the end wall of the base plate close to the top opening, a screw is passed through the end wall of the base plate close to the top opening, a base is installed at the bottom end of the screw, a support is provided at the bottom end of the base, and through pins matching the through opening are installed at the left and right end walls at the top of the base.

[0007] Preferably, the base and the support are both disc-shaped, and the base and the support are rotatably connected to each other, and the base and the through pin are fixedly connected to each other.

[0008] Preferably, the base and the screw are threadedly connected, and the screw rotates to drive the base and the support to move downward, so that the support supports the bottom plate, and the bottom plate can rotate with the base and the support.

[0009] Preferably, the bottom plate forms a sliding structure through a slide groove and a slider, and the two sliders are fixedly connected to the left slide seat and the right slide seat respectively, so that when the slider moves sideways in the slide groove, it drives the left slide seat and the right slide seat to move sideways, thereby clamping the bipolar plates placed in the left slide seat and the right slide seat.

[0010] Preferably, the left sliding seat and the right sliding seat are both in a concave font shape, two screws are provided, the left sliding seat and the right sliding seat are respectively threadedly connected to the screws, and the screws are screwed to lock and limit the left sliding seat and the right sliding seat.

[0011] Preferably, the screw rod, the retaining plate and the notch are symmetrically distributed about the center of the left slide seat, and the screw rod and the retaining plate are rotationally connected, and the screw rod and the left slide seat are rotationally connected.

[0012] Preferably, the open opening and the sliding vane opening are connected to each other, and two of the open opening and two of the sliding vane opening are provided.

[0013] Preferably, the bottom plate is movably connected to the side plate via a sliding plate opening, and the side plate and the side plate are fixedly connected.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The left slide seat, the right slide seat, the screw rod and the abutment sheet of the present invention are used in combination to clamp the four side walls of the bipolar plate, forming a clamping shape, and then tighten the screws to lock and limit the left slide seat and the right slide seat after adjusting the position, so as to facilitate the subsequent stable processing of the bipolar plate, such as dispensing processing.

[0016] 2. The fixture structure of the present invention can be positioned and placed and can also be rotated to switch directions. It has more diverse usage methods, higher controllability, and more flexible adjustment.

[0017] 3. The present invention has a pair of staggered openings, which are used to collect impurities on the bottom plate, making it convenient to clean the impurities. Impurities can also be manually moved to fall into the openings. When the side piece slides out of the sliding piece opening, the side piece can be removed and the impurities stored in the dish groove of the side piece can be poured out and cleaned.

[0018] 4. The two inlets of the present invention are respectively used to connect two pipelines, and cooperate with the hollow cavity of the right slide seat to allow the liquid to enter the hollow cavity of the right slide seat through one inlet and then be discharged from the other inlet to form a cycle. This circulation road is used to water-cool the right slide seat, so that the bipolar plate can be relatively cooled during processing and remain relatively safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a limiting fixture for bipolar plate processing according to the present invention;

[0020] Figure 2 It is a schematic diagram of the top view structure of the left slide seat, the right slide seat and the bottom plate of a limiting fixture for bipolar plate processing of the present invention;

[0021] Figure 3 This is a schematic diagram of the top view of the bottom plate of a limiting fixture for bipolar plate processing according to the present invention;

[0022] Figure 4 It is a schematic diagram of the top view structure of the side piece and side plate of a limiting fixture for bipolar plate processing of the present invention;

[0023] Figure 5 A limiting fixture for bipolar plate processing according to the present invention Figure 1 Enlarged structural diagram at A in the middle.

[0024] In the figure: 1, bottom plate; 2, opening; 3, top opening; 4, through opening; 5, screw; 6, base; 7, support; 8, pin; 9, slide groove opening; 10, slider; 11, slideway; 12, left slide seat; 13, right slide seat; 14, inlet; 15, screw; 16, stopper; 17, notch; 18, screw; 19, open opening; 20, slide opening; 21, side piece; 22, side plate; 23, dish groove opening. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1-5The present invention provides a technical solution: a limiting fixture for bipolar plate processing, comprising a bottom plate 1, an opening 2 is provided at the bottom center end wall of the bottom plate 1, a top opening 3 is provided at the top center end wall of the bottom plate 1, a through opening 4 is relatively provided at the end wall of the bottom plate 1 close to the top opening 3, a screw rod 5 is penetrated at the end wall of the bottom plate 1 close to the top opening 3, a base 6 is installed at the bottom end of the screw rod 5, a support 7 is provided at the bottom end of the base 6, through pins 8 matched with the through opening 4 are installed at the left and right end walls of the top of the base 6, the base 6 and the support 7 are both disc-shaped, and the base 6 and the support 7 are rotatably connected, and the base 6 and the through pin 8 are fixedly connected, the base 6 and the screw rod 5 are threadedly connected, the screw 5 rotates, and the drive base 6 and the support 7 move downward , so that the support 7 supports the bottom plate 1, and the bottom plate 1 can rotate with the base 6 and the support 7. When in use, the base 6 and the support 7 can be placed in the opening 2, so that the bottom of the entire bottom plate 1 is supported on the supporting surface, such as the processing table of the bipolar plate, so that the entire fixture is positioned and placed, and when the bipolar plate needs to be rotated and the length and width are switched to adapt to the processing equipment on the processing table station, such as the dispensing head and the welding head, at this time, the screw 5 can be rotated first to expose the base 6 from the bottom of the bottom plate 1, and the support 7 can be used to support the bottom plate 1. At this time, the support 7 and the base 6 are rotatably connected, and the bottom plate 1 can be flexibly rotated to rotate the bipolar plate on the bottom plate 1 accordingly, and the direction can be switched, which is more flexible during processing and has controllable adjustability;

[0029] Slide grooves 9 are provided at both left and right end walls inside the bottom plate 1, and sliders 10 are installed in the slide grooves 9. A slideway 11 connected to the slide grooves 9 is provided at the upper end wall of the bottom plate 1 near the slide grooves 9. Two sliders 10 are provided, and the upper ends of the two sliders 10 are respectively provided with a left slide seat 12 and a right slide seat 13 for enclosing and clamping the bipolar plates. The bottom plate 1 forms a sliding structure through the slide grooves 9 and the sliders 10. The two sliders 10 are respectively fixedly connected to the left slide seat 12 and the right slide seat 13, so that when the slider 10 moves sideways in the slide groove 9, it drives the left slide seat 12 and the right slide seat 13 to move sideways, thereby clamping the bipolar plates placed in the left slide seat 12 and the right slide seat 13. The left slide 12 and the right slide 13 are both in a concave font shape, and two screws 18 are provided. The left slide 12 and the right slide 13 are respectively threadedly connected with the screws 18. The screws 18 are screwed to lock the left slide 12 and the right slide 13. The slider 10 at the slide slot mouth 9 is movable, and the slider 10 moves along the length direction of the slide slot mouth 9, driving the left slide 12 and the right slide 13 at the top of the slider 10 to move sideways, so that the two left slides 12 and the right slide 13 are close to each other, and the clamping size formed is smaller. On the contrary, the left slide 12 and the right slide 13 move away from each other sideways, and the clamping size formed is larger, which is used to clamp bipolar plates of different sizes respectively, and the adaptability of the clamp is stronger;

[0030] An inlet 14 is provided at the upper end wall of the right slide 13. The interior of the right slide 13 is hollow, and two inlets 14 are provided. The hollow inner cavity of the right slide 13 is connected with the two inlets 14 to form a circulation cavity. A screw 15 is penetrated at both the front and rear end walls of the left slide 12. A butt piece 16 is installed at the end wall of the screw 15 near the center of the left slide 12. A notch 17 for accommodating the butt piece 16 is opened at the end wall of the left slide 12 near the butt piece 16. Screws 18 are penetrated at the top walls of the left slide 12 and the right slide 13. The screw 15, the butt piece 16, and the notch 17 are all relative to the center of the left slide 12. The screw rod 15 and the abutment 16 are rotatably connected, and the screw rod 15 and the left slide 12 are rotatably connected. The screw rod 15 rotates, and the screw rod 15 is displaced along the end wall of the bottom plate 1, driving the abutment 16 at the end wall of the screw rod 15 to move sideways, so that the two abutment 16 are close to each other, and the end wall of the bipolar plate placed in the recess of the left slide 12 is clamped, so that the bipolar plate is clamped and limited. When the left slide 12 and the right slide 13 are used in combination, it is obvious that the left slide 12 and the right slide 13 cooperate with the abutment 16 to limit the left and right and front and back directions of the bipolar plate, which is very flexible when used;

[0031] An opening 19 is provided at the upper end of the bottom plate 1 near the edge end wall, a sliding plate opening 20 is provided at the bottom end wall of the bottom plate 1 near the opening 19, a side plate 21 is installed inside the sliding plate opening 20, a side plate 22 is installed at the side end wall of the side plate 21, a dish slot 23 for storing impurities is provided on the upper end wall of the side plate 21, the opening 19 and the sliding plate opening 20 are connected, and there are two openings 19 and two sliding plate openings 20, and the bottom plate 1 is connected to the sliding plate opening 20 and the side plate 21. The side piece 21 and the side plate 22 are movably connected, and are fixedly connected. The side piece 21 is movable and can be inserted into the sliding plate opening 20. At this time, impurities generated by clamping the bipolar plate and processing at the bottom plate 1 can fall into the sliding plate opening 20 along the opening 19, and finally fall into the dish groove 23 for centralized storage, which is convenient for centralized cleaning of impurities. The side piece 21 slides out of the sliding plate opening 20 to remove the side piece 21, and the impurities stored in the dish groove 23 of the side piece 21 are poured out and cleaned.

[0032] In summary, when the bipolar plate processing limiting fixture is used,

[0033] First, place the bipolar plate between the left slide 12 and the right slide 13, then tighten the screw 15, the screw 15 rotates and drives the two abutments 16 to approach each other, clamping the front and rear side walls of the bipolar plate, then the slide slot 9 and the slider 10 move to make the left slide 12 and the right slide 13 approach each other, clamping the left and right side walls of the bipolar plate to form a clamping shape, and then tighten the screw 18 to lock the left slide 12 and the right slide 13 after adjusting the position, so as to facilitate the subsequent stable processing of the bipolar plate, such as dispensing processing;

[0034] Among them, the fixture structure can be positioned and placed, and can also be rotated to switch directions, which makes it more versatile to use, more controllable, and more flexible to adjust:

[0035] When the rotation is switched and the direction is adjusted, the screw rod 5 can be rotated to drive the base 6 and the support 7 to move downward, and the pin 8 can be moved in the through hole 4 to make the base 6 and the support 7 to move more stably. After moving downward, the support 7 supports the bottom plate 1, and the bottom plate 1 can rotate with the base 6 and the support 7. When the bipolar plate rotates and the length and width are switched to adapt to the processing equipment on the processing station, such as the dispensing head and the welding head, the bipolar plate on the bottom plate 1 rotates accordingly and switches the direction, which is more flexible during processing and has controllable adjustability;

[0036] When positioning and placing, the base 6 and the support 7 can be placed in the opening 2, so that the bottom of the entire bottom plate 1 is supported on a supporting surface, such as a processing table for a bipolar plate, so that the entire fixture is positioned and placed, and the entire fixture is in a stable state for stable use;

[0037] The pair of openings 19 are staggeredly arranged so that when the bottom plate 1 is tilted, impurities generated by clamping the bipolar plate and processing the bottom plate 1 can fall into the slide opening 20 along the openings 19 and finally fall into the dish notch 23 for centralized storage, which is convenient for centralized cleaning of impurities. Impurities can also be manually moved to fall into the openings 19. When the side plate 21 slides out of the slide opening 20, the side plate 21 can be removed and the impurities stored in the dish notch 23 of the side plate 21 can be poured out and cleaned.

[0038] The two inlets 14 are respectively used to connect two pipelines, such as water inlet and outlet pipelines, so that liquid can be injected into the hollow cavity of the right slide seat 13. Since the shape of the hollow cavity is the same as that of the right slide seat 13, both are concave font shapes, the liquid enters the hollow cavity of the right slide seat 13 through one inlet 14 and is then discharged from the other inlet 14 to form a cycle. This circulation road is used to water-cool the right slide seat 13, so that the bipolar plate can be relatively cooled during processing and remain relatively safe.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A limiting fixture for bipolar plate processing, comprising a bottom plate (1), characterized in that: The bottom plate (1) is provided with a slide groove (9) at both left and right end walls inside, and a slider (10) is installed in the slide groove (9). The bottom plate (1) is provided with a slideway (11) connected to the slide groove (9) at the upper end wall near the slide groove (9). Two sliders (10) are provided, and the upper ends of the two sliders (10) are respectively provided with a left slide seat (12) and a right slide seat (13) for enclosing and clamping the bipolar plate. The upper end wall of the right slide seat (13) is provided with an inlet (14). The right slide seat (13) is hollow inside, and there are two inlets (14). The hollow inner cavity of the right slide seat (13) is connected to the two inlets (14) to form a circulation cavity. The front and rear end walls of the left slide seat (12) are both penetrated by screw rods. (15), a butt plate (16) is installed at the end wall of the screw rod (15) near the center of the left slide seat (12), a notch (17) for accommodating the butt plate (16) is opened at the end wall of the left slide seat (12) near the butt plate (16), screws (18) are penetrated at the top walls of the left slide seat (12) and the right slide seat (13), an opening (19) is opened relatively at the upper end of the bottom plate (1) near the edge end wall, a sliding plate opening (20) is opened at the bottom end wall of the bottom plate (1) near the opening (19), a side plate (21) is installed inside the sliding plate opening (20), a side plate (22) is installed at the side end wall of the side plate (21), and a dish groove (23) for storing impurities is opened at the upper end wall of the side plate (21).

2. A limiting fixture for bipolar plate processing according to claim 1, characterized in that: An opening (2) is provided at the center end wall of the bottom of the bottom plate (1), a top opening (3) is provided at the center end wall of the top of the bottom plate (1), a through opening (4) is provided at the end wall of the bottom plate (1) close to the top opening (3), a screw rod (5) is passed through the end wall of the bottom plate (1) close to the top opening (3), a base (6) is installed at the bottom end of the screw rod (5), a support (7) is provided at the bottom end of the base (6), and through pins (8) matched with the through opening (4) are installed at the left and right end walls of the top of the base (6).

3. A limiting fixture for bipolar plate processing according to claim 2, characterized in that: The base (6) and the support (7) are both disc-shaped, and the base (6) and the support (7) are rotatably connected to each other, and the base (6) and the through pin (8) are fixedly connected to each other.

4. A limiting fixture for bipolar plate processing according to claim 2, characterized in that: The base (6) and the screw rod (5) are threadedly connected. When the screw rod (5) rotates, the base (6) and the support (7) are driven to move downward, so that the support (7) supports the bottom plate (1). The bottom plate (1) can rotate with the base (6) and the support (7).

5. The limiting fixture for bipolar plate processing according to claim 1, characterized in that: The bottom plate (1) forms a sliding structure through a sliding groove (9) and a sliding block (10), and the two sliding blocks (10) are respectively fixedly connected to a left sliding seat (12) and a right sliding seat (13), so that when the sliding block (10) moves sideways in the sliding groove (9), it drives the left sliding seat (12) and the right sliding seat (13) to move sideways, thereby clamping the bipolar plates placed in the left sliding seat (12) and the right sliding seat (13).

6. A limiting fixture for bipolar plate processing according to claim 1, characterized in that: The left sliding seat (12) and the right sliding seat (13) are both in a concave font shape. Two screws (18) are provided. The left sliding seat (12) and the right sliding seat (13) are respectively threadedly connected with the screws (18). The screws (18) are screwed to lock and limit the left sliding seat (12) and the right sliding seat (13).

7. A limiting fixture for bipolar plate processing according to claim 1, characterized in that: The screw rod (15), the abutment plate (16) and the notch (17) are all symmetrically distributed about the center of the left slide seat (12), and the screw rod (15) and the abutment plate (16) are rotationally connected to each other, and the screw rod (15) and the left slide seat (12) are rotationally connected to each other.

8. The limiting fixture for bipolar plate processing according to claim 1, characterized in that: The open opening (19) and the sliding vane opening (20) are connected to each other, and two of the open opening (19) and two of the sliding vane opening (20) are provided.

9. The limiting fixture for bipolar plate processing according to claim 1, characterized in that: The bottom plate (1) is movably connected to the side plate (21) via a sliding plate opening (20), and the side plate (21) and the side plate (22) are fixedly connected.

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