Stamping device for new energy automobile oil cooler bottom plate production

Abstract

The invention relates to the technical field of stamping devices, and discloses a stamping device for new energy automobile oil cooler bottom plate production, which comprises a bottom plate, a workbench is fixedly mounted on the bottom plate, a template is mounted on the workbench, a lower die holder is fixedly mounted on the template, a mounting frame is mounted on the bottom plate, the mounting frame is of an inverted U-shaped structure, and the mounting frame is located on the outer side of the workbench. A round hole is formed in the upper surface of the mounting frame, a hydraulic telescopic rod is correspondingly mounted at the round hole, the telescopic end of the hydraulic telescopic rod points to the lower die base, a movable frame is mounted at the telescopic end of the hydraulic telescopic rod, an upper die base is mounted on the movable frame, and the upper die base is located over the lower die base. The hydraulic telescopic rod extends to drive the upper die base to move downwards, the upper die base extrudes downwards and is matched with the lower die base to form the new energy automobile oil cooler bottom plate, the hydraulic telescopic rod contracts, the upper die base moves downwards, and the upper die base and the lower die base are separated; and the formed new energy automobile oil cooler bottom plate can be conveniently taken out.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping devices, and in particular to a stamping device for producing a base plate of an oil cooler for a new energy vehicle. Background Art

[0002] Stamping is a forming process that uses a press and a die to apply external force to plates, strips, pipes and profiles to produce plastic deformation or separation, thereby obtaining a workpiece of the desired shape and size. The blanks for stamping are mainly hot-rolled and cold-rolled steel plates and strips. Automobile bodies, chassis, fuel tanks, radiators, boiler drums, container shells, motors, electrical appliances, and iron core silicon steel sheets are all stamped.

[0003] Application No. CN202011206659.4 discloses a stamping device, including a press, a stamping movable arm and a die. The stamping movable arm includes a stamping cylinder, a pressure sleeve and a stamping punch. A compression cavity is formed inside the stamping cylinder, and a set amount of gas is sealed in the compression cavity. The stamping cylinder has a first connecting end and a first stamping end. The first connecting end is transmission-connected to the press, and the press drives the first connecting end to move in a feeding direction or a retracting direction. The pressure sleeve is movably arranged at the first stamping end of the stamping cylinder, and the pressure sleeve seals the first stamping end. The stamping punch has a second connecting end and a second stamping end. The second connecting end is arranged in the compression cavity, and the second connecting end is fixedly arranged in the middle of the extension direction of the stamping cylinder. The second stamping end is penetrated by the pressure sleeve, and the stamping cylinder drives the second stamping end to move in the feeding direction or the retracting direction. The second punching end pushes the part to be punched into the die, which ensures the stable progress of the punching process. However, there is a disadvantage that the feeding direction and the retracting direction are controlled by the punching movable arm, and the structure of the punching movable arm is complex and the manufacturing cost is high. Summary of the invention

[0004] The purpose of the present invention is to provide a stamping device for producing a base plate of an oil cooler for a new energy vehicle, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a punching device for producing a base plate of an oil cooler for a new energy vehicle, comprising a base plate, a workbench is fixedly mounted on the base plate, a template is mounted on the workbench, a lower die seat is fixedly mounted on the template, a mounting frame is mounted on the base plate, the mounting frame is an inverted U-shaped structure, the mounting frame is located outside the workbench, a circular hole is opened on the upper surface of the mounting frame, a hydraulic telescopic rod is correspondingly mounted at the circular hole, the telescopic end of the hydraulic telescopic rod points to the lower die seat, a moving frame is mounted on the telescopic end of the hydraulic telescopic rod, an upper die seat is mounted on the moving frame, and the upper die seat is located directly above the lower die seat; The metal sheet to be stamped is placed on the surface of the lower die seat, and the upper die seat is driven downward by the extension of the hydraulic telescopic rod. The metal sheet is deformed by the downward extrusion of the upper die seat and the cooperation with the lower die seat, thereby forming the bottom plate of the new energy vehicle oil cooler; After the stamping work is completed, the hydraulic telescopic rod is retracted to realize the downward movement of the upper die seat, so that the upper die seat and the lower die seat are separated, so as to facilitate the removal of the bottom plate of the new energy vehicle oil cooler after forming; The upper die seat is installed on the mobile frame by bolts, and the lower die seat and the template are installed on the workbench by different bolts. When processing the oil cooler bottom plates of new energy vehicles of different sizes, the upper die seat, the lower die seat and the template of different sizes are replaced, and then the stamping process is performed to realize the production of oil cooler bottom plates of new energy vehicles of different sizes or shapes; The stamping device also includes a hydraulic system, which includes a hydraulic pump, a hydraulic control valve, a hydraulic telescopic rod, a connecting pipe and an oil tank, and the hydraulic telescopic rod is an actuator of the hydraulic system; When extending, the hydraulic pump sucks hydraulic medium from the oil tank, and the hydraulic medium enters the upper chamber of the hydraulic cylinder through the pipeline, the throttle valve and the reversing valve, pushing the piston to drive the telescopic rod to move downward, and the hydraulic medium discharged from the lower chamber of the hydraulic cylinder flows back to the oil tank through the reversing valve; when shortening, the opposite is true.

[0006] Furthermore, a circular hole is formed on the lower die seat, a spherical hole is formed on the template, and the port of the spherical groove is connected to the circular hole; The upper die seat is provided with a sphere distributed corresponding to the spherical groove, the spherical groove matches the sphere, and the end surface of the sphere is provided with a deep hole corresponding to the top column; By cooperating with the spherical groove and the sphere, a groove is formed on the bottom plate of the new energy vehicle oil cooler after stamping, so that the outlet end of the groove is the lowest end. When the cooling oil is replaced, it is convenient for the cooling oil to be gathered and discharged into the groove.

[0007] Furthermore, the upper surface of the workbench is provided with two relatively distributed limiting grooves, the bottom surface of the template is provided with two protrusions, the template is installed on the workbench and the protrusions are installed in cooperation with the limiting grooves, the protrusions are provided with step holes, and the bolts passing through the step holes are installed in the screw holes on the bottom surface of the limiting grooves; The lower die base is provided with two relatively distributed connecting ears, and the bolts installed on the connecting ears pass through the step holes; The positioning and installation of the template is achieved by cooperating with the protrusion and the limit groove. At the same time, the template and the lower die seat are split structures. When the size of the groove of the new energy vehicle oil cooler base plate to be processed remains unchanged, the new energy vehicle oil cooler base plates of different sizes and shapes can be processed by replacing the lower die seat. Compared with the integral mold, the split mold can reduce the number of features on a single mold through combined use, which facilitates the processing of a single mold.

[0008] Furthermore, two opposite side surfaces of the mounting frame are provided with slots, and two outer side surfaces of the movable frame are provided with guide rods, and the guide rods move along the slots; The positioning is achieved by cooperating with the slot holes and the guide rods to prevent the moving frame from shaking during the downward movement, thus ensuring the accuracy of the formed sheet. Compared with limiting by a column, limiting by a side makes it easier to observe the movement trajectory of the guide rod and the friction between the guide rod and the inner wall of the slot.

[0009] Furthermore, a bayonet is provided at the bottom end of the movable frame, a roller is installed in the bayonet, the workbench has a cavity, and a stand and a through groove are provided on opposite sides of the workbench, the through groove is connected with the cavity, and a propulsion assembly is installed on the two stands, the propulsion assembly is connected to the top column, and the top end of the top column is cooperated and installed in the guide hole on the bottom surface of the spherical groove of the template, and the roller pushes the propulsion assembly to retract, so that the top column can go deep into the spherical groove.

[0010] Furthermore, the propulsion assembly includes a connecting rod, a push rod and an elastic plate, one end of the push rod is installed on the protrusion through a pin shaft, an articulated seat is provided on the inner side of the push rod, and relatively distributed slots are opened on the top column. The correspondingly distributed articulated seats and slots are connected by a connecting rod, and the two push rods are connected by an elastic plate. The end of the elastic plate is installed on the articulated seat, and the connecting rod and the elastic plate both pass through the through slot.

[0011] Furthermore, the roller moves along the outer side surface of the push rod.

[0012] Furthermore, the movable frame and the upper die seat move downward under the push of the hydraulic telescopic rod. During the movement, the roller installed at the end of the movable frame contacts the outer side of the push rod, pushing the push rod to rotate toward one side of the workbench; Since the push rod and the top column are connected by a connecting rod, and the angle formed between the connecting rod and the push rod is an acute angle, when the push rod contracts, the contracted push rod pushes the end of the connecting rod connected to it to rotate downward, and the other end of the connecting rod rotates upward, thereby pushing the top column to move upward along the guide hole; Until the lower die seat and the upper die seat are fully matched, the ejector pierces the plate between the lower die seat and the upper die seat and penetrates into the slot of the sphere, thereby piercing the bottom plate of the formed new energy vehicle oil cooler; To realize stamping and perforating processing, when the upper die seat moves upward, the two push rods are reset under the action of the elastic plate, thereby realizing the reset of the ejector column, which is convenient for the next processing.

[0013] Furthermore, a hollow boss is provided on the bottom surface of the template, and an end cover is mounted on the bottom end of the boss; The end cover is provided with a notch, and the top end of the top column extends upward through the notch; A rubber sleeve is installed in the notch, with the other end fixed on the top column; The lower die seat is provided with a slot hole, and the bowl body is installed outside the slot hole. The bowl body extends into the boss, so that the top end of the top column is matched in the circular hole at the bottom of the bowl body.

[0014] The present invention has the following beneficial effects: (1) The present invention places a metal sheet to be stamped on the surface of a lower die seat, and drives the upper die seat to move downward by extending a hydraulic telescopic rod. The upper die seat is pressed downward and cooperates with the lower die seat to deform the metal sheet, thereby forming a bottom plate of an oil cooler for a new energy vehicle. After the stamping work is completed, the hydraulic telescopic rod is contracted to move the upper die seat downward, and the upper die seat and the lower die seat are separated, so that the bottom plate of the oil cooler for a new energy vehicle can be taken out after being formed.

[0015] (2) The present invention realizes the positioning and installation of the template by cooperating with the protrusion and the limit groove. At the same time, the template and the lower mold base are split structures. When the size of the groove of the new energy vehicle oil cooler base plate to be processed remains unchanged, the new energy vehicle oil cooler base plates of different sizes and shapes can be processed by replacing the lower mold base. Compared with the integral mold, the split mold can reduce the number of features on a single mold through combined use, which facilitates the processing of a single mold.

[0016] (3) In the present invention, since the push rod and the ejector column are connected by a connecting rod, and the angle formed between the connecting rod and the push rod is an acute angle, when the push rod contracts, the contracted push rod pushes the end of the connecting rod connected to it to rotate downward, and the other end of the connecting rod rotates upward, thereby pushing the ejector column to move upward along the guide hole until the lower die seat and the upper die seat are fully matched, and the ejector column pierces the plate between the lower die seat and the upper die seat and penetrates into the groove hole of the sphere, thereby piercing the bottom plate of the formed new energy vehicle oil cooler, and realizing stamping and perforating processing. When the upper die seat moves upward, the two push rods are reset under the action of the elastic plate, thereby realizing the reset of the ejector column, which is convenient for the next processing.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cutaway structure of the present invention; Figure 3 It is a schematic diagram of the connection structure between the mounting frame and the upper die base of the present invention; Figure 4 This is a schematic diagram of the connection structure between the bottom plate and the workbench of the present invention; Figure 5 It is a schematic diagram of the structure of the workbench of the present invention; Figure 6 It is a schematic diagram of the cutaway structure of the workbench of the present invention; Figure 7 This is a schematic diagram of the structure of the propulsion assembly of the present invention; Figure 8 It is a schematic diagram of the local structure of the workbench of the present invention; Fig. 9 It is a schematic diagram of a hollow template of the present invention; Fig.10 For the present invention Fig. 9 Schematic cross-section diagram of In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1. bottom plate; 2. workbench; 201. cavity; 202. through groove; 203. stand; 204. limit groove; 3. template; 301. step hole; 302. protrusion; 303. boss; 304. end cover; 305. notch; 306. one-way water inlet; 307. one-way water outlet; 4. lower die seat; 401. slot hole; 402. bowl body; 5. mounting frame; 501. round hole; 502. slot hole; 6. hydraulic telescopic rod; 7. moving frame; 701. bayonet; 8. upper die seat; 9. top column; 901. notch; 10. connecting rod; 11. push rod; 1101. hinged seat; 12. elastic plate; 13. guide rod; 14. roller; 15. rubber sleeve. DETAILED DESCRIPTION

[0020] 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.

[0021] Embodiment 1 See also Figure 1-Figure 8As shown, the present invention is a stamping device for producing a base plate of an oil cooler for a new energy vehicle, comprising a base plate 1, a workbench 2 is fixedly mounted on the base plate 1, a template 3 is mounted on the workbench 2, a lower die seat 4 is fixedly mounted on the template 3, a mounting frame 5 is mounted on the base plate 1, the mounting frame 5 is an inverted U-shaped structure, the mounting frame 5 is located on the outside of the workbench 2, a circular hole 501 is opened on the upper surface of the mounting frame 5, a hydraulic telescopic rod 6 is correspondingly mounted at the circular hole 501, the telescopic end of the hydraulic telescopic rod 6 points to the lower die seat 4, a moving frame 7 is mounted on the telescopic end of the hydraulic telescopic rod 6, an upper die seat 8 is mounted on the moving frame 7, and the upper die seat 8 is located directly above the lower die seat 4.

[0022] The metal sheet to be stamped is placed on the surface of the lower die base 4, and the upper die base 8 is driven downward by the extension of the hydraulic telescopic rod 6. The upper die base 8 is pressed downward and cooperates with the lower die base 4 to deform the metal sheet, thereby forming the bottom plate of the new energy vehicle oil cooler; After the stamping work is completed, the hydraulic telescopic rod 6 is retracted to realize the downward movement of the upper die base 8, so that the upper die base 8 and the lower die base 4 are separated, so as to facilitate the removal of the bottom plate of the new energy vehicle oil cooler after forming; The upper die base 8 is mounted on the mobile frame 7 by bolts, and the lower die base 4 and the template 3 are mounted on the workbench 2 by different bolts. When processing the oil cooler bottom plates of new energy vehicles of different sizes, the upper die base 8, the lower die base 4 and the template 3 of different sizes are replaced, and then the stamping process is performed to realize the production of oil cooler bottom plates of new energy vehicles of different sizes or shapes; The stamping device also includes a hydraulic system, which includes a hydraulic pump, a hydraulic control valve, a hydraulic telescopic rod 6, a connecting pipe and an oil tank, and the hydraulic telescopic rod 6 is an actuator of the hydraulic system; When extending, the hydraulic pump sucks hydraulic medium from the oil tank, and the hydraulic medium enters the upper chamber of the hydraulic cylinder through the pipeline, the throttle valve and the reversing valve, pushing the piston to drive the telescopic rod to move downward, and the hydraulic medium discharged from the lower chamber of the hydraulic cylinder flows back to the oil tank through the reversing valve; when shortening, the opposite is true.

[0023] A circular hole is formed on the lower die base 4, a spherical hole is formed on the die plate 3, and the port of the spherical groove is connected to the circular hole; The upper die seat 8 is provided with a sphere distributed corresponding to the spherical groove, the spherical groove matches the sphere, and the end surface of the sphere is provided with a deep hole corresponding to the top column 9; By cooperating with the spherical groove and the sphere, a groove is formed on the bottom plate of the new energy vehicle oil cooler after stamping, so that the outlet end of the groove is the lowest end. When the cooling oil is replaced, it is convenient for the cooling oil to be gathered and discharged into the groove.

[0024] The upper surface of the workbench 2 is provided with two relatively distributed limiting grooves 204, and the bottom surface of the template 3 is provided with two protrusions 302. The template 3 is installed on the workbench 2 and the protrusions 302 are installed in cooperation with the limiting grooves 204. The protrusions 302 are provided with step holes 301, and the bolts passing through the step holes 301 are installed in the screw holes on the bottom surface of the limiting grooves 204. The lower die base 4 is provided with two relatively distributed connecting ears, and the bolts installed on the connecting ears pass through the step hole 301; The protrusion 302 cooperates with the limiting groove 204 to realize the positioning and installation of the template 3. At the same time, the template 3 and the lower mold base 4 are split structures. When the size of the groove of the new energy vehicle oil cooler base plate to be processed remains unchanged, the lower mold base 4 can be replaced to realize the processing of new energy vehicle oil cooler base plates of different sizes and shapes. Compared with the integral mold, the split mold can reduce the number of features on a single mold through combined use, which facilitates the processing of a single mold.

[0025] Slots 502 are provided on opposite sides of the mounting frame 5, and guide rods 13 are installed on two outer sides of the movable frame 7, and the guide rods 13 move along the slots 502; The slotted hole 502 cooperates with the guide rod 13 to achieve position limiting, thereby preventing the movable frame 7 from shaking during the downward movement, thereby ensuring the accuracy of the formed plate; Compared with limiting by a column, limiting by a side surface makes it easier to observe the movement trajectory of the guide rod 13 and the friction between the guide rod 13 and the inner wall of the slot 502 .

[0026] A bayonet 701 is provided at the bottom end of the movable frame 7, and a roller 14 is installed in the bayonet 701. The workbench 2 has a cavity 201. A stand 203 and a through groove 202 are provided on the opposite sides of the workbench 2. The through groove 202 is connected to the cavity 201. A propulsion assembly is installed on the two stands 203, and the propulsion assembly is connected to the top column 9. The top end of the top column 9 is installed in the guide hole on the bottom surface of the spherical groove of the template 3. The roller 14 pushes the propulsion assembly to retract, so that the top column 9 can penetrate into the spherical groove.

[0027] The propulsion assembly includes a connecting rod 10, a push rod 11 and an elastic plate 12. One end of the push rod 11 is installed on the protrusion 302 through a pin shaft. An articulated seat 1101 is provided on the inner side of the push rod 11. Relatively distributed slots 901 are opened on the top column 9. The correspondingly distributed articulated seats 1101 and the slots 901 are connected through the connecting rod 10. The two push rods 11 are connected through the elastic plate 12. The end of the elastic plate 12 is installed on the articulated seat 1101. The connecting rod 10 and the elastic plate 12 both pass through the through groove 202.

[0028] The roller 14 moves along the outer side surface of the push rod 11.

[0029] The movable frame 7 and the upper die seat 8 move downward under the push of the hydraulic telescopic rod 6. During the movement, the roller 14 installed at the end of the movable frame 7 contacts the outer side of the push rod 11, pushing the push rod 11 to rotate toward one side of the workbench 2. Since the push rod 11 is connected to the top column 9 by the connecting rod 10, and the angle formed between the connecting rod 10 and the push rod 11 is an acute angle, when the push rod 11 contracts, the contracted push rod 11 pushes the end of the connecting rod 10 connected to it to rotate downward, and the other end of the connecting rod 10 rotates upward, thereby pushing the top column 9 to move upward along the guide hole; Until the lower die seat 4 and the upper die seat 8 are fully matched, the top column 9 pierces the plate between the lower die seat 4 and the upper die seat 8 and penetrates into the slot of the sphere, thereby piercing the bottom plate of the formed new energy vehicle oil cooler; To realize stamping and perforating processing, when the upper die seat 8 moves upward, the two push rods 11 are reset under the action of the elastic plate 12, thereby realizing the reset of the ejector column 9, which is convenient for the next processing.

[0030] Embodiment 2 like Figure 9-10 As shown, the difference from the first embodiment is that the bottom surface of the template 3 is provided with a hollow boss 303, the bottom end of the boss 303 is matched with an end cover 304, and the outer side of the boss 303 is provided with a one-way water inlet 306 and a one-way water outlet 307; The end cover 304 is provided with a notch 305, and the top end of the top column 9 extends upward through the notch 305; A rubber sleeve 15 is installed in the slot 305 and the other end of the rubber sleeve 15 is fixed on the top column 9; The lower die base 4 is provided with a slot hole 401, and a bowl body 402 is installed outside the slot hole 401, and the bowl body 402 extends into the boss 303, so that the top of the top column 9 is matched in the circular hole at the bottom of the bowl body 402; The one-way water inlet 306 and the one-way water outlet 307 are both connected to the external pipeline, the one-way water inlet 306 is connected to the water inlet pipeline, and the one-way water outlet 307 is connected to the drainage pipeline; The top column 9 moves up and down during the extrusion process; When moving upward, the top end of the top column 9 goes deep into the bowl body 402 and approaches the end cover 304, thereby compressing the rubber sleeve 15, and causing the water inside the cavity formed by the extrusion boss 303, the end cover 304 and the bowl body 402 to be discharged through the one-way water outlet 307; When moving downward, the top end of the top column 9 slides out of the bowl body 402 and away from the end cover 304, so as to stretch the rubber sleeve 15, and cause the water inside the cavity formed by the extrusion boss 303, the end cover 304 and the bowl body 402 to be sucked in through the one-way water inlet 306; This enables water flow inside the cavity, and the flowing water takes away the heat generated by the bowl body 402 and the top column 9 during operation, thereby alleviating the problem of deformation of the bowl body 402 and the top column 9 in a high temperature environment.

[0031] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A punching device for producing a base plate of an oil cooler for a new energy vehicle, comprising a base plate (1), characterized in that: A workbench (2) is fixedly mounted on the bottom plate (1), a template (3) is mounted on the workbench (2), and a lower mold base (4) is fixedly mounted on the template (3); A mounting frame (5) is mounted on the bottom plate (1), the mounting frame (5) is an inverted U-shaped structure, and the mounting frame (5) is located outside the workbench (2); A circular hole (501) is formed on the upper surface of the mounting frame (5), and a hydraulic telescopic rod (6) is mounted corresponding to the circular hole (501), with the telescopic end of the hydraulic telescopic rod (6) pointing toward the lower die base (4); A moving frame (7) is mounted on the telescopic end of the hydraulic telescopic rod (6), an upper die seat (8) is mounted on the moving frame (7), and the upper die seat (8) is located directly above the lower die seat (4).

2. A punching device for producing a bottom plate of an oil cooler for a new energy vehicle according to claim 1, characterized in that: The lower die base (4) is provided with a circular hole; The template (3) is provided with a spherical hole, and the end of the spherical groove is connected to the circular hole.

3. A punching device for producing a bottom plate of an oil cooler for a new energy vehicle according to claim 1, characterized in that: The upper surface of the workbench (2) is provided with two relatively distributed limiting grooves (204); The bottom surface of the template (3) is provided with two protrusions (302); the template (3) is mounted on the workbench (2) and the protrusions (302) are mounted in cooperation with the limiting grooves (204); The protrusion (302) is provided with a stepped hole (301), and a bolt passing through the stepped hole (301) is installed in a screw hole on the bottom surface of the limiting groove (204).

4. A punching device for producing a bottom plate of an oil cooler for a new energy vehicle according to claim 1, characterized in that: The mounting frame (5) has slots (502) formed on two opposite side surfaces thereof; Guide rods (13) are installed on both outer sides of the movable frame (7), and the guide rods (13) move along the slots (502).

5. A punching device for producing a bottom plate of an oil cooler for a new energy vehicle according to claim 2, characterized in that: A bayonet (701) is provided at the bottom end of the movable frame (7), and a roller (14) is installed in the bayonet (701); The workbench (2) has a cavity (201), and two opposite sides of the workbench (2) are provided with a stand (203) and a through slot (202); The through groove (202) is in communication with the cavity (201); A propulsion assembly is installed on each of the two stands (203), the propulsion assembly is connected to a top column (9), and the top end of the top column (9) is fitted in a guide hole on the bottom surface of the spherical groove of the template (3); The roller (14) pushes the propulsion assembly to retract, thereby enabling the top column (9) to penetrate deeply into the spherical groove.

6. A punching device for producing a bottom plate of an oil cooler for a new energy vehicle according to claim 5, characterized in that: The propulsion assembly comprises a connecting rod (10), a push rod (11) and an elastic plate (12); One end of the push rod (11) is mounted on the protrusion (302) via a pin shaft, a hinge seat (1101) is provided on the inner side of the push rod (11), and relatively distributed notches (901) are provided on the top column (9); The correspondingly distributed hinge seats (1101) and the notches (901) are connected via connecting rods (10); The two push rods (11) are connected via an elastic plate (12), and the end of the elastic plate (12) is mounted on a hinge seat (1101); The connecting rod (10) and the elastic plate (12) both pass through the through slot (202).

7. A punching device for producing a bottom plate of an oil cooler for a new energy vehicle according to claim 6, characterized in that: The roller (14) moves along the outer side surface of the push rod (11).

8. The punching device for producing the bottom plate of the oil cooler of a new energy vehicle according to claim 1 is characterized in that: The upper die seat (8) is provided with spheres distributed corresponding to the spherical grooves, and the spherical grooves match the spheres; The end surface of the sphere is provided with a deep hole corresponding to the top column (9).

9. The punching device for producing the bottom plate of the oil cooler of a new energy vehicle according to claim 1 is characterized in that: The lower die base (4) is provided with two relatively distributed connecting ears, and bolts installed on the connecting ears pass through the step holes (301).

10. The punching device for producing the bottom plate of the oil cooler of a new energy vehicle according to claim 1 is characterized in that: The bottom surface of the template (3) is provided with a hollow boss (303), the bottom end of the boss (303) is fitted with an end cover (304), and the outer side of the boss (303) is provided with a one-way water inlet (306) and a one-way water outlet (307); The end cover (304) is provided with a notch (305), and the top end of the top column (9) extends upward through the notch (305); A rubber sleeve (15) is installed in the notch (305), the other end of which is fixed on the top column (9); The lower die base (4) is provided with a slotted hole (401), and a bowl body (402) is installed outside the slotted hole (401). The bowl body (402) extends into the boss (303), so that the top end of the top column (9) fits into the circular hole at the bottom of the bowl body (402).

Images