A gasket stamping device for electric vehicle gearbox

Abstract

The present invention discloses a gasket stamping device for electric vehicle gearboxes, which belongs to the technical field of stamping equipment, and comprises: a base, wherein a top plate is provided on the top of the base, and two sets of conveying mechanisms are provided on the bottom of the base; a stamping die, wherein the stamping die comprises: a lower die and an upper die, and a punching hole and a punching groove are provided on the top of the lower die; a hydraulic drive mechanism, wherein the hydraulic drive mechanism comprises: an oil storage tank, an oil pump, a reversing valve, an oil distribution tank, and a plurality of hydraulic cylinders, wherein the top of the hydraulic cylinder is connected to the oil distribution tank, a piston plate is slidably installed in the hydraulic cylinder, and a piston rod is fixedly installed on the bottom of the piston plate. The present invention can realize automatic positioning and conveying of raw material plates through the provided clamping mechanism, positioning mechanism, and pushing mechanism, and can realize automatic stamping processing of plates through the cooperation of the provided hydraulic drive mechanism and the stamping die, and can automatically adjust the punching force according to the thickness of the plate, avoid overloading of the oil pump, and improve the applicability of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping equipment, and in particular to a gasket stamping device for an electric vehicle gearbox. Background Art

[0002] With the rapid development of the electric vehicle (EV) market, EV powertrain design is constantly evolving. As a crucial component in EV power transmission, the precision and fit of its internal components directly impact the performance and safety of the entire vehicle. Gaskets, as sealing materials, play a crucial role in the assembly of transmissions. Traditional gasket stamping devices offer poor positioning of the raw material during the stamping process and are inconvenient for automatically adjusting stamping parameters to accommodate varying thicknesses. When stamping unusually thick sheet metal, such as with hydraulic drives, insufficient hydraulic pressure forces the oil pump to work harder to provide sufficient pressure and flow, potentially overloading the pump. If the pressure requirement consistently exceeds the pump's rated capacity, the pump may become overloaded. Operating under high load, the pump generates significant heat. In particular, excessively high hydraulic oil temperatures can reduce the pump's lubrication performance, leading to damage or premature wear. Therefore, we propose a gasket stamping device for EV transmissions to address this issue. Summary of the Invention

[0003] The object of the present invention is to provide a gasket punching device for an electric vehicle gearbox to solve the problems raised in the above background technology.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A gasket punching device for an electric vehicle gearbox, comprising:

[0006] A base, wherein a top plate is provided on the top of the base, and two sets of conveying mechanisms are provided on the bottom of the base;

[0007] A stamping die, comprising a lower die and an upper die, wherein the top of the lower die is provided with a circular punching hole and an annular punching groove, and the bottom of the upper die is integrally formed with a circular punch and an annular punch, and the lower die is detachably mounted on the top of the base;

[0008] A hydraulic drive mechanism, comprising: an oil storage tank, an oil pump, a reversing valve, an oil distribution tank, and a plurality of hydraulic cylinders, the top end of the hydraulic cylinder being connected to the oil distribution tank, a piston plate being slidably mounted in the hydraulic cylinder, a piston rod being fixedly mounted at the bottom of the piston plate, a mounting plate being fixedly mounted at the bottom end of the piston rod, the mounting plate being detachably mounted on the top of the upper mold, a valve core being rotatably mounted in the hydraulic cylinder, a valve stem being fixedly mounted at the front end of the valve core, and a shift rod being fixedly mounted on the outer side of the valve stem;

[0009] The clamping mechanism includes: a vertical plate and a clamping wheel. The vertical plate is slidably installed inside the top plate. A bracket is fixedly installed at the bottom of the vertical plate. The clamping wheel is rotatably installed in the bracket.

[0010] Preferably, connecting shafts are rotatably mounted on both sides of the top of the top plate, a small gear and a large gear are fixedly mounted on the outer side of the connecting shaft, a small rack is fixedly mounted on one side of the vertical plate, the small rack and the small gear are meshed with each other, a large rack is meshed with the top of the large gear, a shift plate is fixedly mounted on the top of the large rack, the shift rod and the shift plate are adapted to each other, and the horizontal movement of the shift plate can drive the shift rod to rotate;

[0011] A guide seat is fixedly installed on the bottom of the shift plate, a guide rail is fixedly installed on the top of the top plate, the guide seat is slidably sleeved on the outside of the guide rail, the pitch circle diameter of the large gear is much larger than the pitch circle diameter of the small gear, a compression spring is fixedly installed on one side of the vertical plate, and the top end of the compression spring is fixedly connected to the top plate.

[0012] Preferably, the hydraulic cylinder is fixedly mounted inside the top plate, the oil pump, reversing valve and oil storage tank are all fixedly mounted on the top of the oil distribution tank, the outsides of the oil storage tank and the oil distribution tank are connected with a conduit, the other end of the conduit and both ends of the oil pump are connected with the reversing valve, the rear end of the valve core is fixedly mounted with a round shaft, the round shaft is rotatably mounted in the corresponding hydraulic cylinder, the rear end of the round shaft is fixedly mounted with a torsion spring, and the front end of the torsion spring is fixedly connected to the corresponding hydraulic cylinder.

[0013] Preferably, a pushing mechanism is provided on both sides of the top of the base, and the pushing mechanism includes: a pushing motor, a mounting frame and a pushing wheel. The pushing wheel is arranged directly below the corresponding pressure wheel, and the pushing wheel is rotatably installed in the mounting frame. The front end of the pushing wheel is fixedly installed on the output shaft of the pushing motor. The pushing motor and the mounting frame are both fixedly installed on the top of the base.

[0014] Preferably, positioning mechanisms are provided on both sides of the top of the base, and the positioning mechanisms include: a positioning motor, a bidirectional screw and two positioning plates, the two positioning plates are respectively threadedly sleeved on the outer ends of the bidirectional screw, and a plurality of positioning wheels are rotatably installed on the top of the positioning plates. The front end of the bidirectional screw is fixedly installed on the output shaft of the positioning motor, and the positioning motor is fixedly installed on the top of the base;

[0015] Slide rails and positioning frames are fixedly installed on both sides of the top of the base. The bidirectional screw rods are rotatably installed in the corresponding positioning frames, and the positioning plates are slidably sleeved on the outer sides of the corresponding slide rails.

[0016] Preferably, the mounting plate is fixedly mounted on the top of the upper mold by bolts, a plurality of guide columns are fixedly mounted on the top of the lower mold, the upper mold is slidably sleeved on the outside of the guide columns, a U-shaped plate and a second touch button are fixedly mounted on the bottom front side of the top plate, the second touch button is movably abutted against the top of the upper mold, a first touch button is fixedly mounted inside the U-shaped plate, and the first touch button is arranged below the upper mold.

[0017] Preferably, the bottom of the lower mold is integrally formed with a plug-in plate, and the plug-in plate is movably plugged into the inside of the base. A card plate is slidably installed on one side of the base, and a card slot is provided on one side of the plug-in plate. The card plate is movably plugged into the card slot. A square slot is provided on one side of the bottom of the card plate, and a square plate is slidably installed in the square slot. A compression spring and a pull rod are fixedly installed on the top of the square plate, and the top of the compression spring is fixedly installed on the top inner wall of the square slot. A fixed frame is fixedly installed on one side of the base, and the bottom of the square plate is movably plugged into the fixed frame.

[0018] Preferably, the conveying mechanism includes: a conveying frame, a conveying belt and a conveying motor, two conveying rollers are rotatably installed in the conveying frame, one end of one of the conveying rollers is fixedly installed on the output shaft of the conveying motor, the conveying belt transmission is installed on the outside of the two conveying rollers, the conveying motor is fixedly installed on one side of the conveying frame, and a drop-out port is opened on the top of the base.

[0019] Preferably, a horizontal plate is fixedly installed on one side of the positioning plate, a plurality of support wheels are rotatably installed on the inner side of the horizontal plate, a plurality of support rods are fixedly installed between the top plate and the base, a controller is fixedly installed on the front side of the base, and the controller is connected to the first touch button, the second touch button, the reversing valve and the oil pump signal.

[0020] The beneficial effects of the present invention are:

[0021] 1. In the present invention, a gasket punching device for an electric vehicle gearbox is provided, wherein a metal plate for gasket punching is placed above a supporting wheel on the left side, and the metal plate is pushed to the right to move between a pressure wheel and a push wheel. The pressure wheel is tightly abutted against the metal plate by a compression spring, and a positioning motor is started to drive a bidirectional screw rod to rotate. The bidirectional screw rod cooperates with the threads of the two positioning plates and drives the two positioning plates close to each other under the guidance of a slide rail so that the positioning wheels abut against the front and rear sides of the metal plate, thereby positioning the metal plate. Then, the push motor is started to drive the push wheel to rotate clockwise, thereby realizing automatic conveying of the metal plate.

[0022] 2. In the present invention, the gasket punching device for electric vehicle gearbox is described. By starting the oil pump, the hydraulic oil in the oil storage tank is introduced into the oil distribution tank, and enters the hydraulic cylinder through the valve core. Under the action of the hydraulic pressure, the piston plate is pushed downward, and the piston plate drives the piston rod and the mounting plate to move downward. The mounting plate drives the upper mold to move downward. The upper mold first punches the metal plate through the cooperation of the circular punch and the circular punching hole. Then, the upper mold cuts the metal plate into a circular ring shape through the cooperation of the annular punch and the annular punching groove, thereby realizing the forming of the annular gasket. The circular waste produced by the punching falls onto one of the conveyor belts through the blanking hole, and the upper mold contacts the first control button after moving into position. The first control button The signal is transmitted to the controller, and the controller controls the reversing valve to start reversing and starts the oil pump. The oil pump extracts the hydraulic oil in the oil distribution tank and the hydraulic cylinder and introduces it into the oil storage tank, thereby driving the upper mold to move upward to achieve reset. When the upper mold contacts the second control button, the control reversing valve and the oil pump are started, thereby driving the piston plate to move downward. Repeat the above steps, and cooperate with the pushing mechanism to realize automated stamping work. Then continue to start the pushing motor to drive the metal plate to the right horizontally, so that the formed annular gasket follows its rightward movement and falls onto another conveyor belt through the gap of the support wheel. By starting the two conveying motors to drive the conveying roller and the conveyor belt to operate, the circular waste and the annular finished product can be conveyed and discharged separately.

[0023] 3. In the present invention, the gasket stamping device for electric vehicle gearbox, when the pressure wheel presses and positions the metal plate, as the thickness of the metal plate increases, the pressure wheel moves upward and drives the vertical plate to move upward through the bracket, and drives the connecting shaft to rotate through the meshing of the small rack and the small gear, and the connecting shaft drives the two shift plates to approach each other through the meshing of the large gear and the large rack, and because the pitch circle diameter of the large gear is much larger than the pitch circle diameter of the small gear, when the rotation angles of the large gear and the small gear are equal, the movement of the large rack is much greater than the movement distance of the small rack, that is, the horizontal movement distance of the shift plate is much greater than the vertical distance of the vertical plate, and when the shift plate moves horizontally, it pushes the valve stem and the valve core to rotate by abutting with the shift rod to open the valve core, so that the greater the thickness of the metal plate, the more the valve core is opened, so that the hydraulic oil introduced by the oil pump can enter more hydraulic cylinders, and press the mounting plate and the upper mold through the piston plate and the piston rod to increase the pressure, thereby meeting the stamping requirements of metal plates with thicker thickness;

[0024] 4. In the present invention, the gasket punching device for an electric vehicle gearbox is configured to release the square plate from the fixing frame by pulling the pull rod upward, thereby releasing the fixation of the clamping plate. The clamping plate is then pulled horizontally to release it from the clamping slot, thereby releasing the fixation of the lower mold, thereby facilitating the removal of the lower mold. The mounting plate and the upper mold are connected by bolts, so that the upper mold can be removed by unscrewing the bolts, thereby facilitating replacement and maintenance.

[0025] 5. In the present invention, the gasket stamping device for electric vehicle gearbox can realize automatic positioning and transportation of raw material plates through the provided clamping mechanism, positioning mechanism and pushing mechanism, and can realize automatic stamping processing of plates through the cooperation of the provided hydraulic drive mechanism and stamping die, and can automatically adjust the stamping force according to the thickness of the plate to avoid overloading of the oil pump and improve the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of a gasket punching device for an electric vehicle gearbox proposed by the present invention;

[0027] Figure 2 for Figure 1 A partial enlarged view of part A;

[0028] Figure 3 for Figure 1 A partial enlarged view of part B;

[0029] Figure 4 This is a schematic cross-sectional view of a gasket punching device for an electric vehicle gearbox proposed by the present invention;

[0030] Figure 5 for Figure 4 A partial enlarged view of part C in the middle;

[0031] Figure 6 for Figure 4 A partial enlarged view of part D in the middle;

[0032] Figure 7 for Figure 4 A partial enlarged view of part E in the middle;

[0033] Figure 8 This is a partial cross-sectional structural diagram of the hydraulic drive mechanism proposed in the present invention;

[0034] Figure 9 This is a schematic diagram of a top cross-sectional structure of a gasket punching device for an electric vehicle gearbox proposed by the present invention;

[0035] Figure 10 This is a schematic diagram of the three-dimensional structure of the positioning mechanism proposed by the present invention;

[0036] Figure 11 A schematic diagram of the three-dimensional structure of the stamping die proposed in the present invention;

[0037] Figure 12 This is a schematic diagram of the three-dimensional structure of the conveying mechanism proposed in the present invention.

[0038] In the figure: 1. base; 2. top plate; 201. support rod; 3. stamping die; 301. lower die; 302. upper die; 303. mounting plate; 304. guide column; 305. annular punch; 306. annular punching groove; 4. hydraulic drive mechanism; 401. oil distribution tank; 402. oil storage tank; 403. reversing valve; 404. hydraulic cylinder; 405. piston plate; 406. piston rod; 407. valve core; 408. valve stem; 409. shift rod; 410. circular shaft; 411. torsion spring; 412. oil pump; 5. clamping mechanism; 501. clamping wheel; 502. bracket; 503. vertical plate; 504. compression spring; 505. small rack; 506. small gear; 507. connecting rod Shaft; 508, large gear; 509, large rack; 510, shift plate; 511, guide rail; 512, guide seat; 6, pushing mechanism; 601, pushing wheel; 602, pushing motor; 7, positioning mechanism; 701, positioning motor; 702, positioning plate; 703, positioning wheel; 704, positioning frame; 705, bidirectional screw; 706, slide rail; 8, conveying mechanism; 801, conveying frame; 802, conveying roller; 803, conveying belt; 804, conveying motor; 9, clamping plate; 901, pull rod; 902, compression spring; 903, square plate; 904, fixed frame; 10, controller; 11, horizontal plate; 12, support wheel; 13, U-shaped plate; 14, first touch button; 15, second touch button. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described 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.

[0040] Reference Figure 1 - Figure 12 , a gasket punching device for an electric vehicle gearbox, comprising:

[0041] A base 1, a top plate 2 is provided on the top of the base 1, and two sets of conveying mechanisms 8 are provided on the bottom of the base 1;

[0042] The stamping die 3 includes a lower die 301 and an upper die 302. The top of the lower die 301 is provided with a circular punching hole and an annular punching groove 306. The bottom of the upper die 302 is integrally formed with a circular punch and an annular punch 305. The lower die 301 is detachably mounted on the top of the base 1.

[0043] The hydraulic drive mechanism 4 includes: an oil storage tank 402, an oil pump 412, a reversing valve 403, an oil distribution tank 401, and multiple hydraulic cylinders 404. The top of the hydraulic cylinder 404 is connected to the oil distribution tank 401. A piston plate 405 is slidably installed in the hydraulic cylinder 404. A piston rod 406 is fixedly installed at the bottom of the piston plate 405. A mounting plate 303 is fixedly installed at the bottom end of the piston rod 406. The mounting plate 303 is detachably mounted on the top of the upper mold 302. A valve core 407 is rotatably installed in the hydraulic cylinder 404. A valve stem 408 is fixedly installed at the front end of the valve core 407. A shift lever 409 is fixedly installed on the outer side of the valve stem 408.

[0044] The clamping mechanism 5 includes: a vertical plate 503 and a clamping wheel 501. The vertical plate 503 is slidably installed inside the top plate 2. A bracket 502 is fixedly installed at the bottom of the vertical plate 503. The clamping wheel 501 is rotatably installed in the bracket 502, thereby rotating the clamping wheel 501.

[0045] In this embodiment, connecting shafts 507 are rotatably mounted on both sides of the top of the top plate 2, and a small gear 506 and a large gear 508 are fixedly mounted on the outer side of the connecting shaft 507. A small rack 505 is fixedly mounted on one side of the vertical plate 503. The small rack 505 and the small gear 506 are meshed with each other. A large rack 509 is meshed with the top of the large gear 508. A dial plate 510 is fixedly mounted on the top of the large rack 509. The dial rod 409 and the dial plate 510 are adapted to each other. The horizontal movement of the dial plate 510 can drive the dial rod 409 to rotate.

[0046] A guide seat 512 is fixedly installed at the bottom of the shift plate 510, and a guide rail 511 is fixedly installed on the top of the top plate 2. The guide seat 512 is slidably sleeved on the outside of the guide rail 511. The pitch circle diameter of the large gear 508 is much larger than the pitch circle diameter of the small gear 506. A compression spring 504 is fixedly installed on one side of the vertical plate 503, and the top end of the compression spring 504 is fixedly connected to the top plate 2, so that the compression wheel 501 is tightened by the compression spring 504.

[0047] In this embodiment, the hydraulic cylinder 404 is fixedly installed inside the top plate 2, the oil pump 412, the reversing valve 403 and the oil storage tank 402 are all fixedly installed on the top of the oil distribution tank 401, and the outside of the oil storage tank 402 and the oil distribution tank 401 are connected by a conduit, and the other end of the conduit and the two ends of the oil pump 412 are connected to the reversing valve 403. Through the cooperation of the oil pump 412 and the reversing valve 403, the hydraulic oil can be transported back and forth between the oil storage tank 402 and the oil distribution tank 401. The rear end of the valve core 407 is fixedly installed with a circular shaft 410, and the circular shaft 410 is rotatably installed in the corresponding hydraulic cylinder 404. The rear end of the circular shaft 410 is fixedly installed with a torsion spring 411, and the front end of the torsion spring 411 is fixedly connected to the corresponding hydraulic cylinder 404, and the valve core 407 is reset by the torsion spring 411.

[0048] In this embodiment, a pushing mechanism 6 is provided on both sides of the top of the base 1. The pushing mechanism 6 includes: a pushing motor 602, a mounting frame and a pushing wheel 601. The pushing wheel 601 is arranged directly below the corresponding clamping wheel 501. The pushing wheel 601 is rotatably installed in the mounting frame. The front end of the pushing wheel 601 is fixedly installed on the output shaft of the pushing motor 602. The pushing motor 602 and the mounting frame are both fixedly installed on the top of the base 1.

[0049] In this embodiment, positioning mechanisms 7 are provided on both sides of the top of the base 1. The positioning mechanism 7 includes: a positioning motor 701, a bidirectional screw rod 705 and two positioning plates 702. The two positioning plates 702 are respectively threadedly sleeved on the outer ends of the bidirectional screw rod 705. The two positioning plates 702 can be driven to approach each other by the bidirectional screw rod 705. Several positioning wheels 703 are rotatably installed on the top of the positioning plate 702. The front end of the bidirectional screw rod 705 is fixedly mounted on the output shaft of the positioning motor 701, and the positioning motor 701 is fixedly mounted on the top of the base 1.

[0050] Slide rails 706 and positioning frames 704 are fixedly installed on both sides of the top of the base 1. The bidirectional screw rods 705 are rotatably installed in the corresponding positioning frames 704, and the positioning plates 702 are slidably sleeved on the outer sides of the corresponding slide rails 706.

[0051] In this embodiment, the mounting plate 303 is fixedly installed on the top of the upper mold 302 by bolts to facilitate the disassembly and installation of the upper mold 302. A plurality of guide columns 304 are fixedly installed on the top of the lower mold 301. The upper mold 302 is slidably sleeved on the outside of the guide columns 304. The U-shaped plate 13 and the second touch button 15 are fixedly installed on the bottom front side of the top plate 2. The second touch button 15 is movably abutted against the top of the upper mold 302. The first touch button 14 is fixedly installed inside the U-shaped plate 13. The first touch button 14 is arranged below the upper mold 302.

[0052] In this embodiment, a plug-in plate is integrally formed at the bottom of the lower mold 301, and the plug-in plate is movably plugged into the inside of the base 1. A card plate 9 is slidably installed on one side of the base 1, and a card slot is provided on one side of the plug-in plate. The card plate 9 is movably plugged into the card slot. The lower mold 301 is fixed by the cooperation between the card plate 9 and the card slot. A square groove is provided on one side of the bottom of the card plate 9, and a square plate 903 is slidably installed in the square groove. A compression spring 902 and a pull rod 901 are fixedly installed on the top of the square plate 903, and the top of the compression spring 902 is fixedly installed on the top inner wall of the square groove. A fixed frame 904 is fixedly installed on one side of the base 1, and the bottom of the square plate 903 is movably plugged into the fixed frame 904, thereby realizing the horizontal movement and positioning of the card plate 9.

[0053] In this embodiment, the conveying mechanism 8 includes: a conveying frame 801, a conveying belt 803 and a conveying motor 804. Two conveying rollers 802 are rotatably installed in the conveying frame 801, one end of which is fixedly installed on the output shaft of the conveying motor 804. The conveying belt 803 is transmission-installed on the outside of the two conveying rollers 802. The conveying motor 804 is fixedly installed on one side of the conveying frame 801, and a blanking port is opened on the top of the base 1.

[0054] In this embodiment, a horizontal plate 11 is fixedly installed on one side of the positioning plate 702, and a plurality of support wheels 12 are rotatably installed on the inner side of the horizontal plate 11. A plurality of support rods 201 are fixedly installed between the top plate 2 and the base 1. A controller 10 is fixedly installed on the front side of the base 1. The controller 10 is connected to the first touch button 14, the second touch button 15, the reversing valve 403 and the oil pump 412 by signal, and automatic control of the reversing valve 403 and the oil pump 412 is realized through the controller 10.

[0055] In this embodiment, when in use, the metal plate for gasket stamping is placed above the left support wheel 12, and the metal plate is pushed to the right to move it between the pressure wheel 501 and the pushing wheel 601. The pressure wheel 501 is tightly abutted against the metal plate by the compression spring 504, and the positioning motor 701 is started to drive the bidirectional screw rod 705 to rotate. The bidirectional screw rod 705 cooperates with the threads of the two positioning plates 702 and drives the two positioning plates 702 to approach each other under the guidance of the slide rail 706, so that the positioning wheel 703 abuts against the front and rear sides of the metal plate, thereby realizing the positioning of the metal plate. Then, the pushing motor 602 is started to drive the pushing wheel 601 to rotate clockwise, thereby realizing automatic conveying of the metal plate.

[0056] By starting the oil pump 412, the hydraulic oil in the oil storage tank 402 is introduced into the oil distribution tank 401, and enters the hydraulic cylinder 404 through the valve core 407. Under the action of the hydraulic pressure, the piston plate 405 is pushed downward, and the piston plate 405 drives the piston rod 406 and the mounting plate 303 to move downward. The mounting plate 303 drives the upper mold 302 to move downward. The upper mold 302 first punches the metal plate through the cooperation of the circular punch and the circular punching hole. Then, the upper mold 302 cuts the metal plate into a circular ring shape through the cooperation of the annular punch 305 and the annular punching groove 306, thereby realizing the forming of the annular gasket. The circular waste produced by punching falls onto one of the conveyor belts 803 through the blanking hole, and the upper mold 302 is pressed. After 02 moves into position, it contacts the first control button, and the first control button transmits a signal to the controller 10. The controller 10 controls the reversing valve 403 to start reversing and starts the oil pump 412. The oil pump 412 extracts the hydraulic oil in the oil tank 401 and the hydraulic cylinder 404 and introduces it into the oil storage tank 402, thereby driving the upper mold 302 to move upward to achieve reset. When the upper mold 302 contacts the second control button, the control reversing valve 403 and the oil pump 412 are started, thereby driving the piston plate 405 to move downward. Repeat the above steps, and cooperate with the pushing mechanism 6 to realize automated stamping work, and then continue to start the pushing motor 602 to drive the metal plate to move horizontally to the right, so that the formed annular gasket follows its movement to the right, and The scrap metal sheet is then moved to the conveyor belt 803 by the rollers 802 and the rollers 803. The scrap metal sheet is then moved to the conveyor belt 803 by the rollers 802 and the rollers 803. The scrap metal sheet is then moved to the conveyor belt 803 by the rollers 804. The scrap metal sheet is then moved to the conveyor belt 803 by the rollers 802. The scrap metal sheet is then moved to the conveyor belt 803 by the rollers 804. , so that when the large gear 508 and the small gear 506 rotate at the same angle, the movement of the large rack 509 is much greater than the movement distance of the small rack 505, that is, the horizontal movement distance of the dial plate 510 is much greater than the vertical distance of the vertical plate 503. When the dial plate 510 moves horizontally, it pushes the valve stem 408 and the valve core 407 to rotate by contacting with the dial rod 409, thereby opening the valve core 407. Therefore, when the thickness of the metal plate is greater, the valve core 407 is opened more, so that the hydraulic oil introduced by the oil pump 412 can enter more hydraulic cylinders 404, and pressurize the mounting plate 303 and the upper mold 302 through the piston plate 405 and the piston rod 406 to increase the pressure, thereby meeting the stamping requirements for metal plates with thicker thicknesses;

[0057] By pulling the pull rod 901 upward, the square plate 903 is driven out of the fixed frame 904, thereby releasing the fixation of the card plate 9, and then the card plate 9 is pulled horizontally to make it fall out of the card slot, thereby releasing the fixation of the lower mold 301, so as to facilitate the disassembly of the lower mold 301. The mounting plate 303 and the upper mold 302 are connected by bolts, so that the bolts can be unscrewed to realize the disassembly of the upper mold 302, so as to facilitate replacement and maintenance.

[0058] The above describes in detail the gasket stamping device for electric vehicle transmissions provided by the present invention. Specific embodiments are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. A gasket punching device for electric vehicle gearbox, characterized in that: include: A base (1), wherein a top plate (2) is provided on the top of the base (1), and two sets of conveying mechanisms (8) are provided on the bottom of the base (1); A stamping die (3), the stamping die (3) comprising: a lower die (301) and an upper die (302), the top of the lower die (301) being provided with a circular punching hole and an annular punching groove (306), the bottom of the upper die (302) being integrally formed with a circular punch and an annular punch (305), the lower die (301) being detachably mounted on the top of the base (1); A hydraulic drive mechanism (4), comprising: an oil storage tank (402), an oil pump (412), a reversing valve (403), an oil distribution tank (401), and a plurality of hydraulic cylinders (404), wherein the top end of the hydraulic cylinder (404) is in communication with the oil distribution tank (401), a piston plate (405) is slidably mounted in the hydraulic cylinder (404), a piston rod (406) is fixedly mounted at the bottom of the piston plate (405), a mounting plate (303) is fixedly mounted at the bottom end of the piston rod (406), and the mounting plate (303) is detachably mounted on the upper mold. (302), a valve core (407) is rotatably mounted in the hydraulic cylinder (404), a valve stem (408) is fixedly mounted on the front end of the valve core (407), a shift rod (409) is fixedly mounted on the outside of the valve stem (408), a round shaft (410) is fixedly mounted on the rear end of the valve core (407), the round shaft (410) is rotatably mounted in the corresponding hydraulic cylinder (404), a torsion spring (411) is fixedly mounted on the rear end of the round shaft (410), and the front end of the torsion spring (411) is fixedly connected to the corresponding hydraulic cylinder (404); A pressing mechanism (5), the pressing mechanism (5) comprising: a vertical plate (503) and a pressing wheel (501), the vertical plate (503) being slidably mounted inside the top plate (2), a bracket (502) being fixedly mounted on the bottom of the vertical plate (503), and the pressing wheel (501) being rotatably mounted inside the bracket (502); Connecting shafts (507) are rotatably mounted on both sides of the top of the top plate (2), and a small gear (506) and a large gear (508) are fixedly mounted on the outer side of the connecting shaft (507). A small rack (505) is fixedly mounted on one side of the vertical plate (503), and the small rack (505) and the small gear (506) are meshed with each other. A large rack (509) is meshed on the top of the large gear (508), and a shift plate (510) is fixedly mounted on the top of the large rack (509). The shift rod (409) and the shift plate (510) are adapted to each other, and the shift plate (510) can push the shift rod (409) to rotate when it moves horizontally. A guide seat (512) is fixedly mounted on the bottom of the shift plate (510), a guide rail (511) is fixedly mounted on the top of the top plate (2), and the guide seat (512) is slidably sleeved on the outside of the guide rail (511). The pitch circle diameter of the large gear (508) is much larger than the pitch circle diameter of the small gear (506). A compression spring (504) is fixedly mounted on one side of the vertical plate (503), and the top end of the compression spring (504) is fixedly connected to the top plate (2).

2. The gasket punching device for electric vehicle gearbox according to claim 1, characterized in that: The hydraulic cylinder (404) is fixedly mounted inside the top plate (2); the oil pump (412), the reversing valve (403) and the oil storage tank (402) are all fixedly mounted on the top of the oil distribution tank (401); the outsides of the oil storage tank (402) and the oil distribution tank (401) are both connected to a conduit; the other end of the conduit and both ends of the oil pump (412) are both connected to the reversing valve (403).

3. The gasket punching device for electric vehicle gearbox according to claim 1, characterized in that: A pushing mechanism (6) is provided on both sides of the top of the base (1), and the pushing mechanism (6) comprises a pushing motor (602), a mounting frame, and a pushing wheel (601). The pushing wheel (601) is provided directly below the corresponding pressing wheel (501). The pushing wheel (601) is rotatably mounted in the mounting frame. The front end of the pushing wheel (601) is fixedly mounted on the output shaft of the pushing motor (602). The pushing motor (602) and the mounting frame are both fixedly mounted on the top of the base (1).

4. The gasket punching device for electric vehicle gearbox according to claim 1, characterized in that: Positioning mechanisms (7) are provided on both sides of the top of the base (1), and the positioning mechanism (7) comprises: a positioning motor (701), a bidirectional screw rod (705) and two positioning plates (702), the two positioning plates (702) being respectively threadedly sleeved on the outer ends of the bidirectional screw rod (705), a plurality of positioning wheels (703) being rotatably mounted on the top of the positioning plates (702), the front end of the bidirectional screw rod (705) being fixedly mounted on the output shaft of the positioning motor (701), and the positioning motor (701) being fixedly mounted on the top of the base (1); Slide rails (706) and positioning frames (704) are fixedly installed on both sides of the top of the base (1), the bidirectional screw rod (705) is rotatably installed in the corresponding positioning frame (704), and the positioning plate (702) is slidably sleeved on the outer side of the corresponding slide rail (706).

5. The gasket punching device for electric vehicle gearbox according to claim 1, characterized in that: The mounting plate (303) is fixedly mounted on the top of the upper mold (302) by means of bolts, a plurality of guide posts (304) are fixedly mounted on the top of the lower mold (301), the upper mold (302) is slidably sleeved on the outside of the guide posts (304), a U-shaped plate (13) and a second touch button (15) are fixedly mounted on the front side of the bottom of the top plate (2), the second touch button (15) is movably abutted against the top of the upper mold (302), a first touch button (14) is fixedly mounted inside the U-shaped plate (13), and the first touch button (14) is arranged below the upper mold (302).

6. The gasket punching device for electric vehicle gearbox according to claim 1, characterized in that: The bottom of the lower mold (301) is integrally formed with a plug-in board, and the plug-in board is movably plugged into the interior of the base (1). A card plate (9) is slidably installed on one side of the base (1), and a card slot is provided on one side of the plug-in board. The card plate (9) is movably plugged into the card slot. A square slot is provided on one side of the bottom of the card plate (9), and a square plate (903) is slidably installed in the square slot. A compression spring (902) and a pull rod (901) are fixedly installed on the top of the square plate (903), and the top end of the compression spring (902) is fixedly installed on the top inner wall of the square slot. A fixed frame (904) is fixedly installed on one side of the base (1), and the bottom of the square plate (903) is movably plugged into the fixed frame (904).

7. The gasket punching device for electric vehicle gearbox according to claim 1, characterized in that: The conveying mechanism (8) comprises: a conveying frame (801), a conveying belt (803) and a conveying motor (804); two conveying rollers (802) are rotatably mounted in the conveying frame (801); one end of one of the conveying rollers (802) is fixedly mounted on the output shaft of the conveying motor (804); the conveying belt (803) is driven and mounted on the outside of the two conveying rollers (802); the conveying motor (804) is fixedly mounted on one side of the conveying frame (801); and a material drop opening is provided on the top of the base (1).

8. The gasket punching device for electric vehicle gearbox according to claim 4, characterized in that: A transverse plate (11) is fixedly mounted on one side of the positioning plate (702), a plurality of support wheels (12) are rotatably mounted on the inner side of the transverse plate (11), a plurality of support rods (201) are fixedly mounted between the top plate (2) and the base (1), a controller (10) is fixedly mounted on the front side of the base (1), and the controller (10) is signal-connected to the first touch button (14), the second touch button (15), the reversing valve (403), and the oil pump (412).

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