Hydrogen fuel cell end plate machining and cutting tool

Abstract

The invention belongs to the technical field of fuel cell production, and discloses a hydrogen fuel cell end plate machining and cutting tool which comprises a rack, a milling arm and a clamping mechanism. According to the device, through the arranged clamping mechanism, when a workpiece is subjected to cutting machining such as drilling and milling, after the short edge of the workpiece is placed on a second chuck located on the lower portion, liquid is injected into a base by starting a liquid pump, at the moment, a telescopic rod can stretch out under pushing of the liquid, and therefore the second chuck clamps the workpiece firstly; then the first chuck makes contact with the workpiece and clamps the workpiece, so that the center of the workpiece coincides with the center of the fixing ring, the workpiece is rapidly clamped and centered, the working efficiency is improved, meanwhile, due to the fact that horizontal drilling is used, the situation that chippings in vertical drilling are driven by a drill bit to scrape the workpiece when the drill bit does not penetrate through the workpiece is avoided, and the machining efficiency is improved. And meanwhile, the position precision of the hole can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of fuel cell production, and in particular relates to a hydrogen fuel cell end plate processing and cutting tool. Background Art

[0002] The end plate of a hydrogen fuel cell is a fixed plate set at both ends of the fuel cell stack, which is responsible for clamping the fuel cell stack. It is generally made of thick aluminum plate. After cutting from the whole aluminum plate, holes are drilled on the surface of the plate to be processed for subsequent welding and connection of the interface of the hydrogen and oxygen pipelines. The burrs on the surface of the plate to be processed are then removed by a milling machine. This prevents burrs from falling off the end plate and entering the hydrogen and oxygen circuits of the fuel cell stack during daily driving, causing scratches and blockages to the circuits.

[0003] When milling the existing plates to be processed, the plate to be processed is often fixed on the top of the workbench and then the plate is milled from above. However, when milling and deburring the aluminum plate, this method requires two clampings for milling the front and back sides of the aluminum plate, and four clampings are required for milling all around the aluminum plate. This undoubtedly increases the workload of milling the end plate and reduces production efficiency. At the same time, when milling the aluminum plate, the fixture is easy to scratch the milled surface. If the surface of the aluminum plate in contact with the fuel cell stack is scratched, the sealing effect of the contact part with the fuel cell stack will be reduced, thereby affecting the actual life and working condition of the hydrogen fuel cell. Summary of the invention

[0004] The purpose of the present invention is to provide a hydrogen fuel cell end plate processing and cutting tool to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a hydrogen fuel cell end plate processing and cutting tool, comprising a frame, a track plate is fixedly connected to the top surface of the frame, a sliding groove is provided on the side of the track plate, a milling arm is slidably connected in the sliding groove, a fixing frame perpendicular to the track plate is also fixed to the top surface of the frame, and further comprising:

[0006] The clamping mechanism comprises a fixed ring fixedly sleeved on the center of the fixed frame, annular grooves are provided on both sides of the fixed ring and a rotating ring is rotatably installed, a rotating groove is provided on the inner side of the rotating ring, two centrally symmetrical fixed grooves are provided on the inner side of the rotating groove, a base is fixedly connected to the inner side of the fixed groove, a telescopic rod with a telescopic end facing the center of the fixed ring is fixedly connected to one side of the base, a first chuck is fixedly connected to the top of the telescopic rod on one side, and a second chuck is fixedly connected to the top of the telescopic rod on the other side, and the outlet of the base is fixedly connected to the telescopic end of the telescopic rod. A one-way valve is fixedly connected to the water inlet, and a pressure relief valve is fixedly connected to the output end of the one-way valve, and a rotator is fixedly connected to the output end of the pressure relief valve, and a central axis of the rotator extends from the upper part and is slidably sleeved with a ratchet; a first spring is elastically connected between the top surface of the rotator and the bottom surface of the ratchet, and a rotary valve is fixedly connected to the water inlet of the base, and a rotating shaft of the rotary valve extends out from the upper and lower ends, and another ratchet is fixedly sleeved on the bottom end of the rotating shaft, and a first gear is installed on the top end of the rotating shaft for unidirectional rotation, and an arc-shaped rack is fixedly connected to the side of the fixed ring.

[0007] Preferably, a sliding groove is formed on the side of the second clamp away from the telescopic rod, a rubber pad is slidably connected in the sliding groove, and a plurality of notches distributed at equal distances are formed on the inner side surface of the sliding groove.

[0008] Preferably, the rubber pad is made of hard rubber, the top surface of the rubber pad is higher than the top surface of the second clamp, and when the rubber pad is squeezed, the bottom of the rubber pad is deformed and embedded in the notch.

[0009] Preferably, the water inlet end of the rotary valve passes through the outer side of the rotating circle and extends out, the water outlet end of the rotator passes through the outer side of the rotating circle and extends out, the two rotary valves on the same side are connected via a water inlet pipe fixedly connected thereto, and the two rotators on the same side are connected via a water return pipe fixedly connected thereto.

[0010] Preferably, a symmetrical pipe-threading groove is provided on the top surface of the frame, a liquid pump is fixedly connected to the inside of the frame, an input end of the liquid pump is connected to a water tank, an output end of the liquid pump is connected to two water inlet pipes, and the liquid pump injects and extracts the same amount of liquid into each base at the same time.

[0011] Preferably, a motor is fixedly connected to the inside of the frame, and two one-way bearings with opposite rotation directions are fixedly sleeved on the output shaft of the motor. A driving gear is fixedly sleeved on the outer ring of the one-way bearing, and the upper part of the driving gear passes through the top of the frame.

[0012] Preferably, a secondary gear is fixedly sleeved on the outer side surface of the rotating ring, and the secondary gear is meshed with an adjacent driving gear.

[0013] Preferably, the pressure relief valve is a horizontal pressure relief valve, which can be opened by pressure only when the telescopic rod corresponding to the pressure relief valve is in a vertical direction.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. In the present invention, by providing a clamping mechanism, when drilling, milling and other cutting processes are performed on the workpiece, after the short side of the workpiece is placed on the second chuck located below, liquid is injected into the base by starting the liquid pump. At this time, the telescopic rod will be extended by the push of the liquid, so that the second chuck first clamps the workpiece, and then the first chuck contacts and clamps the workpiece, so that the center of the workpiece coincides with the center of the fixing ring, so that the workpiece is quickly clamped and centered, improving work efficiency. At the same time, due to the use of horizontal drilling, the problem of debris in vertical drilling being driven by the drill bit to scrape the workpiece when the drill bit does not penetrate the workpiece, resulting in an increase in the temperature of the drill bit, is avoided, and it also helps to improve the position accuracy of the hole.

[0016] 2. In the present invention, through the set motor and liquid pump, after the workpiece is clamped by the first chuck and the second chuck, the side of the workpiece is drilled and milled. After the side of the workpiece is milled, the liquid pump pumps liquid to retract the first chuck, so that the milling arm mills the left and right sides of the workpiece, and then the motor drives the workpiece and the second chuck to rotate together, so that the first chuck and the second chuck overlap, and then the motor drives the first chuck to rotate in the opposite direction, driving the first chuck toward the two sides of the workpiece that have been milled, and then the liquid pump is injected with liquid to make the first chuck clamp the workpiece, and then the liquid pump pumps liquid to make the second chuck leave the workpiece. At this time, the remaining two side surfaces of the workpiece are no longer clamped, so that milling can continue. By simply controlling the forward and reverse operation of the motor and the liquid pump, the milling arm can mill the various sides of the workpiece without removing the workpiece, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the clamping mechanism of the present invention;

[0019] Figure 3 It is a cross-sectional view of the rotating circle of the clamping mechanism of the present invention;

[0020] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the inner side structure of the rotating circle of the present invention;

[0022] Figure 6 is a cross-sectional view of the rotator of the present invention;

[0023] Figure 7 is a cross-sectional view of a second chuck of the present invention;

[0024] Figure 8 It is a cross-sectional view of the frame of the present invention.

[0025] In the figure: 1, frame; 11, track plate; 12, sliding groove; 13, milling arm; 14, fixed frame; 15, pipe groove; 16, motor; 17, driving gear; 18, liquid pump; 19, one-way bearing; 2, clamping mechanism; 21, fixed ring; 22, rotating ring; 23, annular groove; 24, rotating groove; 25, fixed groove; 26, base; 27, telescopic rod; 28, rotary valve; 29, rotating shaft; 210, first gear; 211, one-way valve; 212, pressure relief valve; 213, rotator; 214, arc rack; 215, ratchet; 216, first spring; 217, first chuck; 218, second chuck; 219, rubber pad; 220, notch; 221, water inlet pipe; 222, water return pipe; 223, sub-gear. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figures 1 to 8 As shown, an embodiment of the present invention provides a hydrogen fuel cell end plate processing and cutting tool, including a frame 1, a track plate 11 is fixedly connected to the top surface of the frame 1, a sliding groove 12 is provided on the side of the track plate 11, a milling arm 13 is slidably connected in the sliding groove 12, and a fixing frame 14 perpendicular to the track plate 11 is also fixed to the top surface of the frame 1, and further includes:

[0028] The clamping mechanism 2 includes a fixed ring 21 fixedly sleeved in the center of the fixed frame 14, an annular groove 23 is provided on both sides of the fixed ring 21 and a rotating ring 22 is rotatably installed, a rotating groove 24 is provided on the inner side of the rotating ring 22, two centrally symmetrical fixed grooves 25 are provided on the inner side of the rotating groove 24, a base 26 is fixedly connected to the inner side of the fixed groove 25, a telescopic rod 27 with a telescopic end facing the center of the fixed ring 21 is fixedly connected to one side of the base 26, a first clamp 217 is fixedly connected to the top of the telescopic rod 27 on one side, a second clamp 218 is fixedly connected to the top of the telescopic rod 27 on the other side, and a water outlet of the base 26 is fixedly connected to the inner side of the fixed groove 25. A one-way valve 211 is connected, and a pressure relief valve 212 is fixedly connected to the output end of the one-way valve 211, and a rotator 213 is fixedly connected to the output end of the pressure relief valve 212. The central axis of the rotator 213 extends from the upper part and is slidably sleeved with a ratchet 215; a first spring 216 is elastically connected between the top surface of the rotator 213 and the bottom surface of the ratchet 215, and a rotary valve 28 is fixedly connected to the water inlet of the base 26. The rotating shaft 29 of the rotary valve 28 extends from the upper and lower ends, and another ratchet 215 is fixedly sleeved on the bottom end of the rotating shaft 29. The top end of the rotating shaft 29 is unidirectionally rotatably installed with a first gear 210, and the side of the fixed ring 21 is fixedly connected to an arc-shaped rack 214.

[0029] In the present invention, by setting the clamping mechanism 2, when the workpiece is subjected to cutting processing such as drilling and milling, after the short side of the workpiece is placed on the second chuck 218 located below, the liquid is injected into the base 26 by starting the liquid pump 18. At this time, the telescopic rod 27 will be extended by the push of the liquid, so that the second chuck 218 first clamps the workpiece, and then the first chuck 217 contacts and clamps the workpiece, so that the center of the workpiece coincides with the center of the fixing ring 21, so that the workpiece is quickly clamped and centered, thereby improving work efficiency. At the same time, due to the use of horizontal drilling, the problem of debris in vertical drilling being driven by the drill bit to scrape the workpiece when the drill bit does not penetrate the workpiece, resulting in the temperature increase of the drill bit, is avoided, and it also helps to improve the position accuracy of the hole.

[0030] In the present invention, by means of the set motor 16 and the liquid pump 18, after the workpiece is clamped by the first chuck 217 and the second chuck 218, the side of the workpiece is drilled and milled. After the side of the workpiece is milled, the liquid pump 18 pumps liquid to retract the first chuck 217, so that the milling arm 13 mills the left and right sides of the workpiece, and then the motor 16 drives the workpiece and the second chuck 218 to rotate together, so that the first chuck 217 and the second chuck 218 overlap, and then the motor 16 drives the first chuck 217 to rotate in the opposite direction, driving the first chuck 217 toward the two sides of the workpiece that have been milled, and then the liquid pump 18 is injected with liquid to clamp the workpiece by the first chuck 217, and then the liquid pump 18 pumps liquid to leave the second chuck 218. At this time, the remaining two sides of the workpiece are no longer clamped, so that milling can continue. By simply controlling the forward and reverse operation of the motor 16 and the liquid pump 18, the milling arm 13 can mill the various sides of the workpiece without removing the workpiece, thereby improving production efficiency.

[0031] Among them, a sliding groove is opened on the side of the second clamp 218 away from the telescopic rod 27, and a rubber pad 219 is slidably connected in the sliding groove. A plurality of equally distributed notches 220 are opened on the inner side surface of the sliding groove. The rubber pad 219 is hard rubber, and the top surface of the rubber pad 219 is higher than the top surface of the second clamp 218. When the rubber pad 219 is squeezed, its bottom is deformed and embedded in the notch 220.

[0032] When liquid is injected into the base 26 for the first time, as the liquid enters the base 26, the telescopic end of the telescopic rod 27 connected to the base 26 extends, so that the second chuck 218 clamps the workpiece through the rubber pad 219. At this time, the center of the workpiece and the center of the fixed ring 21 are on the same horizontal plane. Then, as the liquid pump 18 continues to inject liquid into the base 26, the first chucks 217 on the left and right sides contact the workpiece. Then, the workpiece will move together with the rubber pad 219 under the push of the telescopic rods 27 and the first chuck 217 on the left and right sides, so that the center of the workpiece coincides with the center of the fixed ring 21, thereby realizing automatic centering of the workpiece.

[0033] Among them, the water inlet end of the rotary valve 28 penetrates the outer side of the rotating circle 22 and extends out, the water outlet end of the rotator 213 penetrates the outer side of the rotating circle 22 and extends out, the two rotary valves 28 on the same side are connected by a water inlet pipe 221 fixedly connected thereto, and the two rotators 213 on the same side are connected by a water return pipe 222 fixedly connected thereto, and a symmetrical pipe passing groove 15 is provided on the top surface of the frame 1. A liquid pump 18 is fixedly connected inside the frame 1, and the input end of the liquid pump 18 is connected to a water tank, and the output end of the liquid pump 18 is connected to the two water inlet pipes 221. The liquid pump 18 injects and extracts the same amount of liquid into each base 26 at the same time.

[0034] In the present invention, since the liquid pump 18 injects and extracts the same amount of liquid into each base 26 at the same time, the extension of the telescopic rod 27 is synchronized. As the second chuck 218 contacts the workpiece, the workpiece is lifted up by the second chuck 218 located below. Finally, under the clamping of the upper and lower second chucks 218, the center of the workpiece and the center of the fixed ring 21 are at the same horizontal height. Under the push and clamping of the first chuck 217, the center of the workpiece coincides with the center of the fixed ring 21. Through the above-mentioned arrangement, the workpiece can be accurately pushed and clamped by the first chuck 217 and the second chuck 218, so as to accurately coincide with the center of the fixed ring 21, thereby improving the processing accuracy during milling.

[0035] Among them, the inside of the frame 1 is fixedly connected to the motor 16, and two one-way bearings 19 with opposite rotation directions are fixedly sleeved on the output shaft of the motor 16. The outer ring of the one-way bearing 19 is fixedly sleeved with a driving gear 17, and the upper part of the driving gear 17 passes through the top of the frame 1. The outer side surface of the rotating circle 22 is fixedly sleeved with a sub-gear 223, and the sub-gear 223 is meshed with the adjacent driving gear 17.

[0036] In the present invention, two one-way bearings 19 are provided on the output shaft of the motor 16, so that when the motor 16 is used to drive the rotating circle 22 corresponding to the driving gear 17 to rotate through a driving gear 17, the outer ring of the other driving gear 17 does not rotate together with the output shaft of the motor 16, thereby keeping the rotating circle 22 corresponding to the other driving gear 17 stationary. As a result, after one rotating circle 22 rotates, the corresponding first chuck 217 or second chuck 218 in the other rotating circle 22 can clamp the processed side of the workpiece, so that the telescopic rod 27 that clamps the unmilled side of the workpiece will not detach from the clamping mechanism 2 after retracting, thereby avoiding repeated positioning caused by repeated clamping.

[0037] The pressure relief valve 212 is a horizontal pressure relief valve, which can be opened by pressure only when the telescopic rod 27 corresponding to the pressure relief valve 212 is in a vertical direction.

[0038] Working principle:

[0039] In the initial state, the two first chucks 217 are arranged in a horizontal state left and right, and the two second chucks 218 are arranged in a vertical state up and down. When the end plate workpiece is milled, deburred and drilled, the short side of the rectangular end plate workpiece is first placed on the second chuck 218 located below, and then the liquid pump 18 is controlled to inject liquid into the base 26 through the water inlet pipe 221. As the liquid is injected into the base 26, the telescopic rod 27 on the base 26 extends. Because the end plate workpiece is a rectangular parallelepiped, the second chuck 218 first contacts the end plate workpiece, so that the center of the workpiece and the center of the fixed ring 21 are at the same horizontal height. As the liquid pump 18 continues to inject liquid into the base 26, because the second chucks 218 at the upper and lower positions have contacted the workpiece, the liquid input by the liquid pump 18 will flow into the telescopic rod 27 in the left and right directions and drive the first chuck 217 to continue to extend. As the telescopic rod 27 in the left and right directions extends, the workpiece located between the two second chucks 218 is pushed, so that the center of the workpiece coincides with the center of the fixed ring 21, so that the workpiece is positioned.

[0040] As the pressure in the base 26 rises to the opening value of the pressure relief valve 212, the liquid injected into the base 26 will drive the pressure relief valve 212 connected to the second chuck 218 to open, and the liquid in the base 26 will drive the turbine in the rotator 213 connected thereto to rotate. At this time, the rotating shaft 29 fixedly sleeved by the turbine rotates, thereby driving the ratchet 215 above it to rotate. The ratchet 215 will drive the rotating shaft 29 fixedly sleeved by another meshing ratchet 215 to rotate, thereby closing the rotary valve 28 and disconnecting the base 26 corresponding to the second chuck 218 from the liquid pump 18.

[0041] After the milling arm 13 has drilled a hole and milled the end face of the workpiece, the liquid in the base 26 is extracted by controlling the liquid pump 18. At this time, the connection between the base 26 corresponding to the second chuck 218 and the liquid pump 18 is disconnected, so that only the telescopic rod 27 corresponding to the first chuck 217 is retracted. At this time, the first chucks 217 on both sides are no longer in contact with the workpiece, so that the milling arm 13 can mill the left and right sides of the workpiece.

[0042] After that, by starting the motor 16 in the forward direction, the rotating circle 22 corresponding to the second chuck 218 is driven to rotate to a horizontal state under the transmission of the driving gear 17. At this time, the second chuck 218 rotates 90 degrees with the workpiece clamped. At this time, as the second chuck 218 rotates, the corresponding first gear 210 engages with the arc-shaped rack 214 fixed on the side of the fixed circle 21, so that the rotary valve 28 opens, and then the base 26 corresponding to the second chuck 218 is reconnected to the liquid pump 18. At this time, the bases 26 corresponding to the first chuck 217 and the second chuck 218 are both connected to the liquid pump 18. At this time, the first chuck 217 and the second chuck 218 are both in the left and right directions, the first chuck 217 is in a retracted state, and the second chuck 218 is in an extended state, and the workpiece is clamped between the two second chucks 218, and the left and right surfaces of the workpiece being milled are rotated to the up and down directions.

[0043] Then, the motor 16 is started in reverse. At this time, under the transmission of another driving gear 17, the rotating circle 22 corresponding to the first chuck 217 rotates in the opposite direction by 90 degrees, thereby switching the two first chucks 217 in the horizontal state to the vertical state. Then, the liquid pump 18 is started to inject liquid into the base 26, so that the telescopic rods 27 of the two first chucks 217 are extended, thereby clamping the workpiece on the side that has been milled. As the water pump continues to inject liquid into the base 26, the pressure relief valve 212 corresponding to the first chuck 217 in the vertical state opens, thereby driving the rotator 213 connected to the pressure relief valve 212 to rotate and close the corresponding rotary valve 28. At this time, the connection between the first chuck 217 and the liquid pump 18 is disconnected.

[0044] Then the liquid pump 18 is used to pump liquid from the base 26. At this time, the connection between the first chuck 217 and the liquid pump 18 is disconnected, so that only the telescopic rod 27 of the second chuck 218 retracts, so that the two sides of the workpiece that have not been milled are no longer clamped, so that the milling arm 13 can mill these two sides of the workpiece. After the two sides are milled, the surfaces of the workpiece in six directions are all milled. Then, by controlling the motor 16 and the liquid pump 18 to reset, the workpiece can be removed therefrom, and the milling process of the workpiece is completed.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrogen fuel cell end plate processing and cutting tool, comprising a frame (1), the top surface of the frame (1) is fixedly connected to a track plate (11), the side of the track plate (11) is provided with a sliding groove (12), a milling arm (13) is slidably connected in the sliding groove (12), and a fixing frame (14) perpendicular to the track plate (11) is also fixed to the top surface of the frame (1), characterized in that: Also includes: The clamping mechanism (2) comprises a fixing ring (21) fixedly sleeved on the center of a fixing frame (14), an annular groove (23) is provided on both sides of the fixing ring (21) and a rotating ring (22) is rotatably mounted thereon, a rotating groove (24) is provided on the inner side surface of the rotating ring (22), two fixing grooves (25) symmetrically arranged at the center are provided on the inner side surface of the rotating groove (24), a base (26) is fixedly connected to the inner side surface of the fixing groove (25), a telescopic rod (27) with a telescopic end facing the center of the fixing ring (21) is fixedly connected to one side of the base (26), a first clamp (217) is fixedly connected to the top end of the telescopic rod (27) on one side, a second clamp (218) is fixedly connected to the top end of the telescopic rod (27) on the other side, and a water outlet of the base (26) is fixedly connected to the water outlet of the base (26). A one-way valve (211) is connected, the output end of the one-way valve (211) is fixedly connected to a pressure relief valve (212), the output end of the pressure relief valve (212) is fixedly connected to a rotator (213), the central axis of the rotator (213) extends from the upper part and is slidably sleeved with a ratchet (215); a first spring (216) is elastically connected between the top surface of the rotator (213) and the bottom surface of the ratchet (215); a rotary valve (28) is fixedly connected to the water inlet of the base (26), the rotary shaft (29) of the rotary valve (28) extends from the upper and lower ends, the bottom end of the rotary shaft (29) is fixedly sleeved with another ratchet (215), the top end of the rotary shaft (29) is unidirectionally rotatably mounted with a first gear (210), and the side surface of the fixed ring (21) is fixedly connected with an arc-shaped rack (214).

2. A hydrogen fuel cell end plate processing and cutting tool according to claim 1, characterized in that: A sliding groove is provided on the side of the second clamp (218) away from the telescopic rod (27), a rubber pad (219) is slidably connected in the sliding groove, and a plurality of notches (220) distributed at equal distances are provided on the inner side surface of the sliding groove.

3. A hydrogen fuel cell end plate processing and cutting tool according to claim 2, characterized in that: The rubber pad (219) is made of hard rubber, the top surface of the rubber pad (219) is higher than the top surface of the second clamp (218), and when the rubber pad (219) is squeezed, its bottom is deformed and embedded in the notch (220).

4. A hydrogen fuel cell end plate processing and cutting tool according to claim 3, characterized in that: The water inlet end of the rotary valve (28) penetrates the outer side of the rotating circle (22) and protrudes, and the water outlet end of the rotator (213) penetrates the outer side of the rotating circle (22) and protrudes. The two rotary valves (28) on the same side are connected via a water inlet pipe (221) fixedly connected thereto, and the two rotators (213) on the same side are connected via a water return pipe (222) fixedly connected thereto.

5. A hydrogen fuel cell end plate processing and cutting tool according to claim 4, characterized in that: The top surface of the frame (1) is provided with symmetrical pipe-through grooves (15); a liquid pump (18) is fixedly connected to the inside of the frame (1); the input end of the liquid pump (18) is connected to a water tank; the output end of the liquid pump (18) is connected to two water inlet pipes (221); and the liquid pump (18) injects and extracts the same amount of liquid into each base (26) at the same time.

6. A hydrogen fuel cell end plate processing and cutting tool according to claim 5, characterized in that: A motor (16) is fixedly connected to the inside of the frame (1); two one-way bearings (19) with opposite rotation directions are fixedly sleeved on the output shaft of the motor (16); a driving gear (17) is fixedly sleeved on the outer ring of the one-way bearing (19); and the upper part of the driving gear (17) passes through the top of the frame (1).

7. A hydrogen fuel cell end plate processing and cutting tool according to claim 6, characterized in that: A secondary gear (223) is fixedly sleeved on the outer side surface of the rotating ring (22), and the secondary gear (223) is meshed with an adjacent driving gear (17).

8. A hydrogen fuel cell end plate processing and cutting tool according to claim 7, characterized in that: The pressure relief valve (212) is a horizontal pressure relief valve and can be opened by pressure only when the telescopic rod (27) corresponding to the pressure relief valve (212) is in a vertical direction.

Images