Gasket stamping device for electric automobile gearbox

Abstract

The invention discloses a gasket stamping device for an electric automobile gearbox, which belongs to the technical field of stamping equipment and comprises a base, a top plate is arranged at the top of the base, and two groups of conveying mechanisms are arranged at the bottom of the base; the stamping die comprises a lower die and an upper die, and a punching hole and a punching groove are formed in the top of the lower die; the hydraulic driving mechanism comprises an oil storage tank, an oil pump, a reversing valve, an oil distribution tank and a plurality of hydraulic cylinders, the top ends of the hydraulic cylinders are communicated with the oil distribution tank, piston plates are slidably mounted in the hydraulic cylinders, and piston rods are fixedly mounted at the bottoms of the piston plates. Automatic positioning and conveying of a raw material plate can be achieved through the pressing mechanism, the positioning mechanism and the pushing mechanism, automatic punching machining of the plate can be achieved through cooperation of the hydraulic driving mechanism and the punching die, the punching strength can be automatically adjusted according to the thickness of the plate, overload of an oil pump is avoided, and the production efficiency is improved. The applicability of the device is improved.

Description

Technical Field

[0001] The 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, the design of the power system of electric vehicles has also been evolving. The gearbox is an important component of electric vehicle power transmission. The precision and fit of its internal components are directly related to the performance and safety of the entire vehicle. In the assembly process of the gearbox, gaskets, as sealing materials, play a vital role. The traditional gasket stamping device has a poor positioning effect on the raw materials during the stamping process, and it is not convenient to automatically adjust the stamping parameters according to the different thicknesses of the raw materials. When it is necessary to stamp plates with abnormally large thickness, such as using hydraulic drive, when the hydraulic pressure is insufficient, the oil pump needs to work harder to provide sufficient pressure and flow, which may cause the oil pump to be overloaded. If the pressure requirement is continuously higher than the rated working capacity of the oil pump, the oil pump may be overloaded. The pump will generate a lot of heat when working under high load. In particular, the high temperature of the hydraulic oil may reduce the lubrication performance of the oil pump, which in turn causes damage or premature wear of the oil pump; therefore, we propose a gasket stamping device for electric vehicle gearboxes to solve this problem. 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 disposed on the top of the base, and two sets of conveying mechanisms are disposed on the bottom of the base;

[0007] A stamping die, the stamping die comprising: a lower die and an upper die, the top of the lower die is provided with a circular punching hole and an annular punching groove, 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, the 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 of the hydraulic cylinder is connected to the oil distribution tank, a piston plate is slidably installed in the hydraulic cylinder, a piston rod is fixedly installed at the bottom of the piston plate, a mounting plate is fixedly installed at the bottom end of the piston rod, the mounting plate is detachably installed on the top of the upper mold, a valve core is rotatably installed in the hydraulic cylinder, a valve stem is fixedly installed at the front end of the valve core, and a shift rod is fixedly installed on the outer side of the valve stem;

[0009] The clamping mechanism comprises: a vertical plate and a clamping wheel. The vertical plate is slidably mounted inside the top plate. A bracket is fixedly mounted at the bottom of the vertical plate. The clamping wheel is rotatably mounted inside 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 on 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 at the bottom of the shift plate, a guide rail is fixedly installed at 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, the reversing valve and the oil storage tank are all fixedly mounted on the top of the oil sub-tank, the outer sides of the oil storage tank and the oil sub-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, a round shaft is fixedly mounted at the rear end of the valve core, the round shaft is rotatably mounted in the corresponding hydraulic cylinder, a torsion spring is fixedly mounted at the rear end of the round shaft, and the front end of the torsion spring is fixedly connected to the corresponding hydraulic cylinder.

[0013] Preferably, pushing mechanisms are provided on both sides of the top of the base, and the pushing mechanisms include: a pushing motor, a mounting frame and a pushing wheel, the pushing wheel is arranged directly above the corresponding clamping wheel, 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, and 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 two ends of the outer sides 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 rod is rotatably installed in the corresponding positioning frame, and the positioning plate is slidably sleeved on the outer side of the corresponding positioning plate.

[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, a plug-in plate is integrally formed on the top of the lower mold, 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, a card slot is provided on one side of the plug-in plate, and 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, 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, the top of the compression spring is fixedly installed on the top inner wall of the square slot, a fixing frame is fixedly installed on one side of the base, and the bottom of the square plate is movably plugged into the fixing 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-off port is opened on the top of the base.

[0019] Preferably, a transverse 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 transverse 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 electric vehicle gearbox is described, by placing a metal plate for gasket punching above the left support wheel, and pushing the metal plate to the right to move it between the clamping wheel and the pushing wheel, the clamping wheel is tightly abutted against the top of the metal plate by a compression spring, and the positioning motor is started to drive the bidirectional screw rod to rotate, the bidirectional screw rod cooperates with the threads of the two positioning plates and drives the two positioning plates to approach each other under the guidance of the slide rail so that the positioning wheel abuts against the front and rear sides of the metal plate, thereby positioning the metal plate, and then the pushing motor is started to drive the pushing 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 starts the oil pump to guide the hydraulic oil in the oil storage tank into the oil distribution tank, and enters the hydraulic cylinder through the valve core. The piston plate is pushed downward by the action of the hydraulic pressure, 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, and 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, so as to realize 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 start the oil pump. The oil pump extracts the hydraulic oil in the oil sub-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 reversing valve and the oil pump are controlled to start, thereby driving the piston plate to move downward. Repeat the above steps, and cooperate with the pushing mechanism to realize automated stamping work, and then continue to start the pushing motor to drive the metal plate to move horizontally to the right, so that the formed annular gasket follows it to move to the right, and falls onto another conveyor belt through the gap of the supporting 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, in the gasket stamping device for electric vehicle gearbox, when the clamping wheel clamps and positions the metal plate, as the thickness of the metal plate increases, the clamping 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 paddles 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 larger than the movement distance of the small rack, that is, the horizontal movement distance of the paddle is much larger than the vertical distance of the vertical plate, and when the paddle moves horizontally, it pushes the valve stem and the valve core to rotate by abutting with the paddle 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 for metal plates with thicker thickness;

[0024] 4. In the present invention, the gasket punching device for an electric vehicle gearbox is configured to pull the pull rod upward to drive the square plate out of the fixed frame to release the fixation of the card plate, and then pull the card plate horizontally to make it out of the card slot to release the fixation of the lower mold, so as to facilitate the disassembly of the lower mold, and the mounting plate and the upper mold are connected by bolts, so that the bolts can be unscrewed to realize the disassembly of the upper mold, so as to facilitate 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 driving 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 It is a partial cross-sectional structural schematic diagram of the hydraulic drive mechanism proposed by the present invention;

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

[0035] Fig.10 A schematic diagram of the three-dimensional structure of the positioning mechanism proposed by the present invention;

[0036] Fig.11 A schematic diagram of the three-dimensional structure of the stamping die proposed by the present invention;

[0037] Fig.12 This is a schematic diagram of the three-dimensional structure of the conveying mechanism proposed by 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, lever; 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 Axis; 508, large gear; 509, large rack; 510, paddle 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 rod; 706, slide rail; 8, conveying mechanism; 801, conveying frame; 802, conveying roller; 803, conveying belt; 804, conveying motor; 9, card 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 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.

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

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

[0042] The stamping die 3 comprises: a lower die 301 and an upper die 302. A circular punching hole and an annular punching groove 306 are provided on the top of the lower die 301. A circular punch and an annular punch 305 are integrally formed on the bottom of the upper die 302. 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 a plurality of 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 installed 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 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 installed on both sides of the top of the top plate 2, and a small gear 506 and a large gear 508 are fixedly installed on the outer side of the connecting shaft 507. A small rack 505 is fixedly installed 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 on the top of the large gear 508. A dial plate 510 is fixedly installed 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 at the top of the top plate 2. The guide seat 512 is slidably sleeved on the outer side 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 clamping wheel 501 is clamped 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 sub-tank 401, and the outer sides of the oil storage tank 402 and the oil sub-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 sub-tank 401. The rear end of the valve core 407 is fixedly installed with a round shaft 410, and the round shaft 410 is rotatably installed in the corresponding hydraulic cylinder 404. The rear end of the round 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 above 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, and 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, and the two positioning plates 702 can be driven to approach each other through the bidirectional screw rod 705, and a plurality of positioning wheels 703 are rotatably installed on the top of the positioning plate 702, and the front end of the bidirectional screw rod 705 is fixedly installed on the output shaft of the positioning motor 701, and the positioning motor 701 is fixedly installed 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 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 positioning plate 702 .

[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. A U-shaped plate 13 and a 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. A 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 on the top 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 one of the conveying rollers 802 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. A material drop opening 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 signals, and automatic control of the reversing valve 403 and the oil pump 412 is achieved 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 clamping wheel 501 and the pushing wheel 601, and the clamping wheel 501 is tightly abutted against the top of the metal plate by the compression spring 504, and the positioning motor 701 is started to drive the bidirectional screw rod 705 to rotate, and 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 positioning the metal plate, and then the pushing motor 602 is started to drive the pushing wheel 601 to rotate clockwise, thereby realizing automatic transportation 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, and 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, so that the forming of the annular gasket can be realized. The circular waste produced by the punching falls onto one of the conveyor belts 803 through the blanking hole, and the upper mold 3 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 reversing valve 403 and the oil pump 412 are controlled to start, 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 501 is pressed and positioned by the clamping wheel 501, and the vertical plate 503 is driven to move upward through the bracket 502 as the thickness of the metal sheet increases. The connecting shaft 507 is driven to rotate through the meshing of the small rack 505 and the small gear 506. The connecting shaft 507 is driven to rotate through the meshing of the large gear 508 and the large rack 509, and the two shifting plates 510 are driven to approach each other because the pitch circle diameter of the large gear 508 is much larger than the pitch circle diameter of the small gear 506. , 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, so as to open the valve core 407. Therefore, when the thickness of the metal plate is greater, the number of valve cores 407 opened is greater, so that the hydraulic oil introduced by the oil pump 412 can enter more hydraulic cylinders 404, and press 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 thickness;

[0057] By pulling the pull rod 901 upwards, the square plate 903 is driven out of the fixed frame 904 to release the fixation of the clamping plate 9, and then the clamping plate 9 is pulled horizontally to make it out of the clamping slot to release 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 is a detailed introduction to a gasket stamping device for an electric vehicle gearbox provided by the present invention. This article uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also 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 arranged on the top of the base (1), and two sets of conveying mechanisms (8) are arranged 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), the 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), the top end of the hydraulic cylinder (404) being connected to the oil distribution tank (401), a piston plate (405) being slidably mounted in the hydraulic cylinder (404), a piston rod (406) being fixedly mounted at the bottom of the piston plate (405), a mounting plate (303) being fixedly mounted at the bottom end of the piston rod (406), the mounting plate (303) being detachably mounted on the top of the upper mold (302), a valve core (407) being rotatably mounted in the hydraulic cylinder (404), a valve stem (408) being fixedly mounted at the front end of the valve core (407), and a shifting rod (409) being fixedly mounted on the outer side of the valve stem (408); A clamping mechanism (5), the clamping mechanism (5) comprising: a vertical plate (503) and a clamping wheel (501), the vertical plate (503) being slidably mounted inside the top plate (2), a bracket (502) being fixedly mounted at the bottom of the vertical plate (503), and the clamping wheel (501) being rotatably mounted inside the bracket (502).

2. The gasket punching device for electric vehicle gearbox according to claim 1, characterized in that: Both sides of the top of the top plate (2) are rotatably mounted with connecting shafts (507), the outer side of the connecting shaft (507) is fixedly mounted with a small gear (506) and a large gear (508), one side of the vertical plate (503) is fixedly mounted with a small rack (505), the small rack (505) and the small gear (506) are meshed with each other, the top of the large gear (508) is meshed with a large rack (509), the top of the large rack (509) is fixedly mounted with a shifting plate (510), the shifting rod (409) and the shifting plate (510) are adapted to each other, and the horizontal movement of the shifting plate (510) can drive the shifting rod (409) to rotate; 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), 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).

3. 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 outer sides of the oil storage tank (402) and the oil distribution tank (401) are both connected by a conduit; the other end of the conduit and both ends of the oil pump (412) are both connected to the reversing valve (403); a round shaft (410) is fixedly mounted at 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 at the rear end of the round shaft (410); the front end of the torsion spring (411) is fixedly connected to the corresponding hydraulic cylinder (404).

4. 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), wherein the pushing wheel (601) is arranged directly above the corresponding pressing wheel (501), and the pushing wheel (601) is rotatably mounted in the mounting frame, and the front end of the pushing wheel (601) is fixedly mounted on the output shaft of the pushing motor (602), and the pushing motor (602) and the mounting frame are both fixedly mounted on the top of the base (1).

5. 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) are respectively threadedly sleeved on the two ends of the outer side of the bidirectional screw rod (705), a plurality of positioning wheels (703) are rotatably mounted on the top of the positioning plates (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); 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 positioning plate (702).

6. 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 outer sides of the guide posts (304), a U-shaped plate (13) and a second touch button (15) are fixedly mounted 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), 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).

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

8. 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 drivingly 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).

9. The gasket punching device for electric vehicle gearbox according to claim 5, 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 a first touch button (14), a second touch button (15), a reversing valve (403) and an oil pump (412).

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