An integrated stamping and welding equipment for automobile bumpers

Abstract

The present invention discloses an integrated punching and welding device for an automobile bumper, specifically relating to the technical field of automobile bumper punching and welding. The device includes a frame, an external controller is installed on the frame, a bracket for supporting the automobile bumper is arranged inside the frame, a punching mechanism for punching the automobile bumper and a welding mechanism for welding the automobile radar bracket on the automobile bumper are arranged inside the frame. In the present invention, during the movement of the automobile bumper towards the "punching station", the feeding of the automobile radar bracket at the welding station can be realized. Since a large number of automobile radar brackets can be placed in the material box at one time, it is not necessary for the staff to temporarily place the automobile radar bracket at the welding station every time the automobile bumper and the automobile radar bracket are welded. Therefore, the efficiency of this device is higher, and since there is no need to manually place the automobile radar bracket frequently, the safety is also higher.

Description

Technical Field

[0001] The present invention relates to the field of automotive bumper punching and welding, and particularly to an integrated device for automotive bumper punching and welding. Background Art

[0002] The automotive bumper punching and welding process refers to integrating the two processes of punching and welding during the production and processing of automotive bumpers. Common ones include punching automotive radar holes and welding automotive radar brackets.

[0003] In the existing automotive bumper punching and welding equipment, during its working process, first, the automotive bumper is sent to the punching station for punching. The punching operation mainly uses the punch in the upper die and the concave groove in the lower die. After punching, it needs to be sent to the welding station for welding relevant components. During the welding of the automotive radar bracket, ultrasonic welding is mainly used. And before welding the automotive radar bracket, it is necessary to manually load the welding station, that is, manually place multiple automotive radar brackets into the welding station. Therefore, the existing automotive bumper punching and welding equipment has low efficiency in the loading process and has potential safety hazards. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated device to solve the above deficiencies in the technology.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An integrated device for automotive bumper punching and welding, including a frame. A controller is installed outside the frame. Inside the frame, there is a bracket for supporting the automotive bumper, a punching mechanism for punching the automotive bumper, and a welding mechanism for welding the automotive radar bracket to the automotive bumper. And inside the frame, there is a moving mechanism for moving the automotive bumper back and forth between the punching mechanism and the welding mechanism. The punching mechanism is located behind the welding mechanism;

[0006] The welding mechanism includes a loading component and a welding component;

[0007] The loading component includes a feeding cylinder. The telescopic end of the feeding cylinder is fixed with an L-shaped plate. One side of the L-shaped plate is connected with a loading plate for holding the automotive radar bracket;

[0008] The welding component includes a welding cylinder. The telescopic end of the welding cylinder is fixed with a cross plate. One side of the cross plate is connected with a fixed frame through a rebounding part. Inside the fixed frame, there is an ultrasonic welding machine for welding the automotive radar bracket to the automotive bumper;

[0009] The feeding cylinder and the welding cylinder are both installed at the inner bottom of the frame through columns. Above the welding mechanism inside the frame, a front suspension is fixed. At the bottom of the front suspension, a front pressing cylinder is installed for pressing the automobile bumper when welding the automobile radar bracket.

[0010] Preferably, the punching mechanism includes two obliquely arranged lower punching cylinders and two obliquely arranged upper punching cylinders. The lower punching cylinders are fixed to the inner bottom of the frame through columns. Above the lower punching cylinders inside the top of the frame, a rear suspension is fixed. The upper punching cylinders are fixed to the bottom of the rear suspension, and the moving direction of the piston rod of the lower punching cylinder is in a counter-punching state with the moving direction of the upper punching cylinder. At the top of the lower punching cylinder, a lower die for punching circular holes is installed. At the bottom of the upper punching cylinder, an upper die for punching circular holes is installed. At the middle of the rear suspension, a rear pressing cylinder is installed for pressing the automobile bumper during punching.

[0011] Preferably, the moving mechanism includes an electric linear guide and a carrier plate. The electric linear guide is installed at the inner bottom of the frame. The carrier plate is fixed to the slider of the electric linear guide. At the top of the carrier plate, a lifting cylinder is fixed. The lifting end of the lifting cylinder is connected to the bracket. The electric linear guide is electrically connected to the controller.

[0012] Preferably, a vertical plate is vertically fixed to the top of the carrier plate on one side of the lifting cylinder. One side of the vertical plate is slidably connected to a sliding plate through a slide rail. The sliding plate is fixedly connected to the bracket.

[0013] Preferably, the inner part of the loading plate is provided with a limiting groove for limiting the rectangular surface of the automobile radar bracket, and a through hole for the welding head of the ultrasonic welding machine to pass through is opened in the inner part of the loading plate;

[0014] The rebounding part includes a limiting rod. The limiting rod penetrates through the cross plate, and one end of the limiting rod is connected to the fixed frame. A first limiting block is fixed to the other end of the limiting rod. A first return spring is sleeved on the outer part of the limiting rod between the fixed frame and the cross plate.

[0015] Preferably, a material box for holding the automobile radar bracket is arranged in front of the welding mechanism. A connecting column is fixed to the front surface of the carrier plate. A support block is fixed to one side of the connecting column at the bottom of the material box. The support block is connected to the material box through bolts. A box door is installed on the front surface of the material box. A pressing cover is installed on the top of the material box through a pressing mechanism, and the material box and the pressing cover are in a communicating state. A guide rod is fixed inside the material box, and the top end of the guide rod is flush with the top of the material box. The diameter of the guide rod is consistent with the inner diameter of the middle hole of the automobile radar bracket. The cross-sectional size inside the material box and the cross-sectional size inside the pressing cover are both the same as the size of the rectangular surface of the automobile radar bracket.

[0016] Preferably, the pressing mechanism includes two upper connecting plates and two lower connecting plates. The two upper connecting plates are respectively fixed on both sides of the gland, and the two lower connecting plates are respectively fixed on both sides of the material box. A guide post is fixed at the bottom of the upper connecting plate. The guide post penetrates through the lower connecting plate. A second limit block is fixed at the bottom of the guide post, and a second return spring is sleeved on the outer part of the guide post between the lower connecting plate and the second limit block.

[0017] Preferably, two insertion blocks are symmetrically fixed on one side of the material loading plate facing the gland. Two insertion slots are symmetrically opened on one side of the gland facing the insertion blocks. The cross-sectional shape of the insertion block is similar to that of the [not clear in the original, might be a wrong description], both are right triangle structures, and the height of the insertion block is the same as the thickness of the material loading plate.

[0018] Preferably, a pushing mechanism for pushing the automotive radar bracket inside it is provided on one side of the material box;

[0019] The pushing mechanism includes an air cylinder and a support ring. The support ring is sleeved on the outer part of the guide rod. The air cylinder is fixed outside the material box. A piston is arranged inside the air cylinder. A push rod is connected to the top of the piston. A connecting rod is connected between the top of the push rod and the support ring. A rectangular hole for the movement of the connecting rod is opened on the outer wall of the material box.

[0020] Preferably, a gas injection mechanism for providing gas for the air cylinder is provided on the end cover of the electric linear guide rail;

[0021] The gas injection mechanism includes a fixing plate. The fixing plate is fixed on the end cover of the electric linear guide rail. And a pressing plate is arranged on one side of the fixing plate facing the bearing plate. A [not clear in the original, might be a wrong description] is arranged between the pressing plate and the fixing plate. And a third return spring is arranged between the pressing plate and the fixing plate outside the airbag. An intake one-way valve and an exhaust one-way valve are connected to one side of the airbag. A communicating pipe is connected between the exhaust one-way valve and the air cylinder. A pressure relief valve is installed on the communicating pipe;

[0022] A screw rod is fixed on one side of the bearing plate facing the pressing plate. A screw tube is threadedly connected to the outer part of the screw rod. A top block is fixed on one side of the screw tube close to the pressing plate.

[0023] In the above technical solution, the technical effects and advantages provided by the present invention:

[0024] During the movement of the vehicle bumper towards the "punching station", the present invention can achieve feeding of the vehicle radar bracket at the welding station. Moreover, while the vehicle bumper is being punched and moving towards the "welding station", it can replenish the material inside the gland, facilitating the welding station to pick up the vehicle radar bracket again. Since a large number of vehicle radar brackets can be placed in the material box at one time, there is no need for workers to temporarily place the vehicle radar bracket at the welding station every time when welding the vehicle bumper and the vehicle radar bracket. Therefore, this equipment has higher efficiency. Since there is no need to frequently manually place the vehicle radar bracket, the safety is also higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0026] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 is a side view of the welding mechanism and the stamping mechanism of the present invention;

[0028] Figure 3 is a schematic diagram of the structure of the welding mechanism of the present invention;

[0029] Figure 4 is a schematic diagram of the structure of the bumper bracket of the present invention;

[0030] Figure 5 is a schematic diagram of the structure of the welding mechanism of the present invention;

[0031] Figure 6 is a schematic diagram of the structure of the loading plate of the present invention;

[0032] Figure 7 is a schematic diagram of the structure of the fixing frame of the present invention;

[0033] Figure 8 is an external view of the material box of the present invention;

[0034] Figure 9 is a schematic diagram of the structure of the slot of the present invention;

[0035] Figure 10 is a schematic diagram of the structure of the material box after the box door is opened;

[0036] Figure 11 is Figure 10 an enlarged view of part A;

[0037] Figure 12Schematic structural diagram of the jacking mechanism of the present invention;

[0038] Figure 13 Schematic structural diagram of the connection between the bearing plate and the material box of the present invention;

[0039] Figure 14 is Figure 13 Enlarged view of part B in

[0040] Explanation of reference numerals:

[0041] 1. Frame; 2. Controller; 3. Electric linear guide; 4. Front suspension; 5. Front pressing cylinder; 6. Rear suspension; 7. Upper punching cylinder; 8. Rear pressing cylinder; 9. Lower punching cylinder; 10. Bearing plate; 11. Lifting cylinder; 12. Vertical plate; 13. Loading cylinder; 14. Welding cylinder; 15. Material box; 16. Bracket; 17. Air cylinder; 18. Pressure cover; 19. L-shaped plate; 20. Limit groove; 21. Insert block; 22. Loading plate; 23. Horizontal plate; 24. Fixed frame; 25. Ultrasonic welding machine; 26. Limit rod; 27. First return spring; 28. First limit block; 29. Support block; 30. Slot; 31. Upper connecting plate; 32. Lower connecting plate; 33. Guide post; 34. Second return spring; 35. Second limit block; 36. Ejector rod; 37. Connecting rod; 38. Guide rod; 39. Support ring; 40. Connecting column; 41. Fixed plate; 42. Pressure plate; 43. Air bag; 44. Third return spring; 45. Intake one-way valve; 46. Exhaust one-way valve; 47. Connecting pipe; 48. Pressure relief valve; 49. Screw; 50. Screw pipe; 51. Top block. Detailed implementation manners

[0042] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further introduced in detail below with reference to the accompanying drawings.

[0043] The present invention provides an integrated punching and welding device for an automotive bumper as shown in Figures 1 - 14 , which includes a frame 1. A controller 2 is installed outside the frame 1. Inside the frame 1, there is a bracket 16 for supporting the automotive bumper (the bracket 16, as the bracket of the bumper, belongs to a non-standard design. The specific structure of the bracket needs to be designed according to the actual specifications and types of automotive bumpers. In the present invention, the bracket 16 is not the focus, and the design of the bracket 16 also belongs to the conventional technology of those skilled in the art, so it will not be elaborated here). Inside the frame 1, there is a punching mechanism for punching the automotive bumper and a welding mechanism for welding the automotive radar bracket to the automotive bumper, and inside the frame 1, there is a moving mechanism for moving the automotive bumper back and forth between the punching mechanism and the welding mechanism. The punching mechanism is located behind the welding mechanism;

[0044] The welding mechanism includes a loading component and a welding component;

[0045] The loading component includes a loading cylinder 13. An L-shaped plate 19 is fixed to the telescopic end of the loading cylinder 13. One side of the L-shaped plate 19 is connected with a loading plate 22 for holding automotive radar brackets.

[0046] The welding component includes a welding cylinder 14. A cross plate 23 is fixed to the telescopic end of the welding cylinder 14. One side of the cross plate 23 is connected with a fixed frame 24 through a resilient part. An ultrasonic welding machine 25 for welding the automotive radar bracket to the automotive bumper is installed inside the fixed frame 24.

[0047] Both the loading cylinder 13 and the welding cylinder 14 are installed at the inner bottom of the frame 1 through columns. A front suspension 4 is fixed above the welding mechanism inside the frame 1. A front pressing cylinder 5 for pressing the automotive bumper during welding of the automotive radar bracket is installed at the bottom of the front suspension 4.

[0048] Further, the punching mechanism includes two obliquely arranged lower punching cylinders 9 and two obliquely arranged upper punching cylinders 7. The lower punching cylinders 9 are fixed to the inner bottom of the frame 1 through columns. A rear suspension 6 is fixed above the lower punching cylinders 9 at the inner top of the frame 1. The upper punching cylinders 7 are fixed to the bottom of the rear suspension 6. The movement directions of the piston rods of the lower punching cylinders 9 and the upper punching cylinders 7 are in a counter-punching state. A lower die for punching circular holes is installed at the top of the lower punching cylinder 9. An upper die for punching circular holes is installed at the bottom of the upper punching cylinder 7. A rear pressing cylinder 8 for pressing the automotive bumper during punching is installed at the middle of the rear suspension 6; specifically, the "lower die" and "upper die" are conventional technologies, and the "lower die" and "upper die" for punching of the existing "automobile bumper punching and welding integrated equipment" can be used. Generally, the upper die uses a circular "punch head", and the lower die uses a circular "die cavity", which will not be elaborated here.

[0049] Further, the moving mechanism includes an electric linear guide 3 and a bearing plate 10. The electric linear guide 3 is installed at the inner bottom of the frame 1. The bearing plate 10 is fixed to the slider of the electric linear guide 3. A lifting cylinder 11 is fixed to the top of the bearing plate 10. The lifting end of the lifting cylinder 11 is connected with a bracket 16. The electric linear guide 3 is electrically connected with the controller 2.

[0050] Further, a vertical plate 12 is vertically fixed to the top of the bearing plate 10 on one side of the lifting cylinder 11. One side of the vertical plate 12 is slidably connected with a sliding plate through a slide rail. The sliding plate is fixedly connected with the bracket 16. The structure of the sliding plate is as shown in the attached Figure 4 description. Through the cooperation of the sliding plate and the vertical plate 12, the stability of the lifting cylinder 11 in controlling the "ascending" or "descending" of the bracket 16 can be further improved.

[0051] Further, a limiting groove 20 for limiting the rectangular surface of the automotive radar bracket is provided inside the material loading plate 22, and a through hole for the welding head of the ultrasonic welding machine 25 to pass through is formed inside the material loading plate 22;

[0052] The rebounding part includes a limiting rod 26. The limiting rod 26 penetrates through the cross plate 23, and one end of the limiting rod 26 is connected to the fixed frame 24. A first limiting block 28 is fixed to the other end of the limiting rod 26. A first return spring 27 is sleeved outside the limiting rod 26 between the fixed frame 24 and the cross plate 23. The first return spring 27 can push the fixed frame 24 outwards in real time, so as to ensure that the fixed frame 24 can return to the initial position even after being pushed by an external force.

[0053] Further, a material box 15 for holding the automotive radar bracket is provided in front of the welding mechanism. A connecting column 40 is fixed to the front surface of the bearing plate 10. A support block 29 is fixed to one side of the connecting column 40 at the bottom of the material box 15. The support block 29 is connected to the material box 15 by bolts. A box door is installed on the front surface of the material box 15. A pressing cover 18 is installed on the top of the material box 15 through a pressing mechanism, and the material box 15 is in a communicating state with the pressing cover 18. A guide rod 38 is fixed inside the material box 15. The top end of the guide rod 38 is flush with the top of the material box 15. The diameter of the guide rod 38 is consistent with the inner diameter of the middle hole of the automotive radar bracket. The cross-sectional size inside the material box 15 and the cross-sectional size inside the pressing cover 18 are both the same as the size of the rectangular surface of the automotive radar bracket. One side of the box door is rotationally connected to the material box 15 through a rotating shaft, and the other side of the box door is connected to the material box 15 through a lock. This lock is a conventional "cabinet door lock". The purpose of locking the box door with the material box 15 is to prevent the automotive radar bracket inside the material box 15 from accidentally falling. In order to observe the remaining automotive radar brackets inside the material box 15, the box door can be made of a transparent material. By using the guide rod 38 and matching with the cross-sectional size inside the material box 15, the stability of the automotive radar bracket during the upward movement in the material box 15 can be improved. Since the actual weight of the automotive radar bracket is relatively low and the edge is relatively smooth, when the automotive radar bracket moves inside the material box 15, the friction force it receives is relatively small and can be basically ignored.

[0054] Further, the pressing mechanism includes two upper connecting plates 31 and two lower connecting plates 32. The two upper connecting plates 31 are respectively fixed on both sides of the gland 18, and the two lower connecting plates 32 are respectively fixed on both sides of the material box 15. A guide post 33 is fixed to the bottom of the upper connecting plate 31. The guide post 33 passes through the lower connecting plate 32. A second limit block 35 is fixed to the bottom of the guide post 33. A second return spring 34 is sleeved outside the guide post 33 between the lower connecting plate 32 and the second limit block 35. The second return spring 34 will always push the second limit block 35 downward. Therefore, it can be ensured that the gland 18 can seal the top of the material box 15 in real time without the "intervention" of the loading plate 22, so as to prevent the automotive radar bracket inside the material box 15 from accidentally falling off.

[0055] Specifically, two insertion blocks 21 are symmetrically fixed to the side of the loading plate 22 facing the gland 18. Two slots 30 are symmetrically formed on the side of the gland 18 facing the insertion blocks 21. The cross-sectional shape of the insertion block 21 is similar to that of the cross-section, both are right-angled triangle structures. The height of the insertion block 21 is the same as the thickness of the loading plate 22. When the material box 15 contacts the loading plate 22, the insertion block 21 will first enter the slot 30, and then push the gland 18 upward. As the insertion block 21 continues to penetrate, when the insertion block 21 completely enters between the gland 18 and the material box 15, since the height of the insertion block 21 is the same as the thickness of the loading plate 22, it also means that the loading plate 22 can completely enter between the gland 18 and the material box 15 for subsequent "material taking" of the automotive radar bracket by the loading plate 22. During the process of the insertion block 21 entering the gland 18 and the material box 15, the material box 15 will squeeze the fixed frame 24. However, when the "material taking" of the loading plate 22 is completed and the material box 15 is moved away, the rebound part can be used to ensure that the fixed frame 24 can return to its initial position to ensure that the welding head of the ultrasonic welding machine 25 can be aligned with the through hole of the loading plate 22, facilitating subsequent welding operations.

[0056] Specifically, a top-pushing mechanism for pushing the automotive radar bracket inside it is provided on one side of the material box 15;

[0057] The pushing mechanism includes an air cylinder 17 and a support ring 39. The support ring 39 is sleeved outside the guide rod 38. The air cylinder 17 is fixed outside the material box 15. A piston is arranged inside the air cylinder 17. A push rod 36 is connected to the top of the piston. A connecting rod 37 is connected between the top of the push rod 36 and the support ring 39. A rectangular hole for the movement of the connecting rod 37 is provided on the outer wall of the material box 15. Through the pushing mechanism, after the loading plate 22 "takes the material", the automotive radar bracket contained inside the material box 15 can be quickly pushed into the gland 18, so that the loading plate 22 can "take the material" again later. When all the automotive radar brackets contained inside the material box 15 are taken out, the gland 18 can be pulled upward, and then the automotive radar brackets can be pushed into the material box 15 one by one. To facilitate pulling the gland 18, a small handle can be installed on the gland 18 to replenish the automotive radar brackets into the material box 15 again.

[0058] Specifically, a gas injection mechanism for supplying gas to the air cylinder 17 is provided on the end cover of the electric linear guide 3;

[0059] The gas injection mechanism includes a fixing plate 41. The fixing plate 41 is fixed on the end cover of the electric linear guide 3. And a pressing plate 42 is arranged on the side of the fixing plate 41 facing the bearing plate 10. An airbag 43 is arranged between the pressing plate 42 and the fixing plate 41. And a third return spring 44 is arranged between the outer part of the airbag 43 and the pressing plate 42 and the fixing plate 41. An intake check valve 45 and an outlet check valve 46 are connected to one side of the airbag 43. A connecting pipe 47 is connected between the outlet check valve 46 and the air cylinder 17. A pressure relief valve 48 is installed on the connecting pipe 47;

[0060] A screw rod 49 is fixed on the side of the bearing plate 10 facing the pressing plate 42. A screw tube 50 is threadedly connected to the outside of the screw rod 49. A top block 51 is fixed on the side of the screw tube 50 close to the pressing plate 42 (the airbag 43 can be rebounded by the third return spring 44. During the rebounding process, the airbag 43 intakes air through the intake check valve 45. When the airbag 43 conveys gas to the connecting pipe 47, it is through the outlet check valve 46. By rotating the screw tube 50 to move the top block 51 forward or backward, the compression amount of the airbag 43 can be changed, so as to change the intake air volume inside the air cylinder 17, thereby adjusting the upward movement distance of the push rod 36 to push automotive radar brackets of different heights);

[0061] To improve the stability of the airbag 43, the two end faces of the airbag 43 can be respectively pasted and fixed to the pressing plate 42 and the fixing plate 41 with glue. The third return spring 44 can be fixed to the pressing plate 42 and the fixing plate 41 by welding. When the airbag 4? needs to be replaced, the gas inside the airbag 43 can be released, and then it can be taken out from the gap of the third return spring 44.

[0062] The overall working principle of the above solution is as follows:

[0063] During use, first place the car bumper on the bracket 16, then drive the bracket 16 to rise by the lifting cylinder 11. After that, drive the carrier plate 10 and the bracket 16 as a whole to move backward by the controller 2 controlling the electric linear guide 3, so that the car bumper moves to the punching mechanism position, namely the "punching station".

[0064] After the car bumper enters the "punching station", start the upper punching cylinder 7, the lower punching cylinder 9 and the rear pressing cylinder 8 at the same time. When the rear pressing cylinder 8 works, its telescopic end will further press the car bumper on the bracket 16. After the upper punching cylinder 7 and the lower punching cylinder 9 are started, the upper die and the lower die will "punch" the car bumper to prepare for the subsequent "welding" installation of the car radar bracket.

[0065] At the same time, while the carrier plate 10, the bracket 16 and the car bumper as a whole move towards the "punching station", the connecting column 40 will also drive the support block 29 and the material box 15 as a whole to move towards the welding mechanism direction, namely the "welding station". When the car bumper accurately reaches the "punching station", the loading plate 22 in the welding mechanism will also be completely inserted between the material box 15 and the gland 18. At this time, the top surface of the loading plate 22 is flush with the bottom of the "rectangular surface" of the car radar bracket, and the bottom surface of the loading plate 22 is flush with the top surface of the material box 15 (specifically refer to the attached instruction manual Figure 11 , the position of the loading plate 22 is marked at the position of "a"). Then, start the feeding cylinder 13 to drive the loading plate 22 to move upward, thereby lifting the gland 18. After that, under the influence of gravity, the car radar bracket in the gland 18 will fall onto the loading plate 22, and the rectangular surface of the car radar bracket can be limited by the limiting groove 20 (the depth of the limiting groove 20 is greater than the depth of the rectangular surface of the car radar bracket).

[0066] When the car bumper is "punched", the electric linear guide 3 drives the carrier plate 10, the bracket 16 and the punched car bumper to move to the "welding station". During this movement, the material box 15 will move forward and separate from the material carrier plate 22. Under the action of the clamping mechanism, the pressure cover 18 will be re-covered on the top of the material box 15 to prevent the car radar bracket inside the material box 15 from falling. However, before that, since the limiting groove 20 has limited the car radar bracket inside the pressure cover 18, when the material box 15 returns, the material carrier plate 22 has already achieved the car radar bracket. When the car bumper approaches the "welding station", the top block 51 on one side of the carrier plate 10 squeezes the pressure plate 42, thereby "compressing" the airbag 43. The gas in the airbag 43 is then transported to the inside of the cylinder 17 through the connecting pipe 47, driving the piston and the push rod 36 inside the cylinder 17 to move upward as a whole. The connecting rod 37 and the support ring 39 can drive the car radar bracket inside the material box 15 to move upward, thereby pushing the car radar inside the material box 15 directly into the interior of the gland 18, so that the subsequent loading plate 22 can take the material.

[0067] Therefore, after the punched car bumper reaches the "welding station", at this time, the carrier plate 22 will support the car radar bracket, and then the loading cylinder 13 drives the carrier plate 22 to move toward the punching position of the car bumper until it is close to the car bumper (the close distance can be controlled within 1 mm-2 mm, and the stroke control of the cylinder is a routine operation, and the staff adjusts it according to actual needs). Then, the welding cylinder 14 will drive the cross plate 23, the fixing frame 24 and the ultrasonic welding machine 25 to move upward as a whole. During the upward movement of the ultrasonic welding machine 25, its ultrasonic welding head will pass through the through hole of the carrier plate 22, and then weld the car radar bracket to the car bumper to achieve fixation. At this point, a cycle ends.

[0068] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An integrated punching and welding device for an automobile bumper, comprising a frame (1), a controller (2) is installed outside the frame (1), a bracket (16) for supporting the automobile bumper is arranged inside the frame (1), a punching mechanism for punching the automobile bumper and a welding mechanism for welding the automobile radar bracket on the automobile bumper are arranged inside the frame (1), and a moving mechanism for moving the automobile bumper back and forth between the punching mechanism and the welding mechanism is arranged inside the frame (1), characterized in that: The punching mechanism is located behind the welding mechanism; The welding mechanism includes a loading component and a welding component; The loading component includes a loading cylinder (13), and an L-shaped plate (19) is fixed to the telescopic end of the loading cylinder (13). A loading plate (22) for holding the automotive radar bracket is connected to one side of the L-shaped plate (19); The welding component includes a welding cylinder (14), and a cross plate (23) is fixed to the telescopic end of the welding cylinder (14). A fixed frame (24) is connected to one side of the cross plate (23) through a resilient part, and an ultrasonic welding machine (25) for welding the automotive radar bracket to the automotive bumper is installed inside the fixed frame (24); Both the loading cylinder (13) and the welding cylinder (14) are installed at the inner bottom of the frame (1) through columns. A front suspension (4) is fixed above the welding mechanism inside the frame (1), and a front pressing cylinder (5) for pressing the automotive bumper during welding of the automotive radar bracket is installed at the bottom of the front suspension (4); A limiting groove (20) for limiting the rectangular surface of the automotive radar bracket is provided inside the loading plate (22), and a through hole for the welding head of the ultrasonic welding machine (25) to pass through is opened inside the loading plate (22); A material box (15) for holding the automotive radar bracket is provided in front of the welding mechanism. The moving mechanism includes an electric linear guide (3) and a carrier plate (10). A connecting column (40) is fixed to the front surface of the carrier plate (10). A support block (29) is fixed to the bottom of the material box (15) on one side of the connecting column (40). The support block (29) is bolted to the material box (15). A box door is installed on the front surface of the material box (15). A pressure cover (18) is installed on the top of the material box (15) through a pressing mechanism, and the material box (15) is in a communicating state with the pressure cover (18). A guide rod (38) is fixed inside the material box (15). The top end of the guide rod (38) is flush with the top of the material box (15). The diameter of the guide rod (38) is consistent with the inner diameter of the middle hole of the automotive radar bracket. The inner cross-sectional size of the material box (15) and the inner cross-sectional size of the pressure cover (18) are both the same as the rectangular surface size of the automotive radar bracket; When the automotive bumper reaches the punching station, the loading plate (22) in the welding mechanism will also be completely inserted between the material box (15) and the pressure cover (18); After the automotive bumper is punched, the electric linear guide (3) drives the carrier plate (10), the bracket (16), and the punched automotive bumper to move towards the welding station. During this movement, the material box (15) will move forward to separate from the loading plate (22); The punching station refers to the position where the punching mechanism is located; The welding station refers to the position where the welding mechanism is located.

2. The integrated punching and welding equipment for an automobile bumper according to claim 1, characterized in that: The punching mechanism includes two obliquely arranged lower punching cylinders (9) and two obliquely arranged upper punching cylinders (7). The lower punching cylinders (9) are fixed to the inner bottom of the frame (1) through columns. At the upper part inside the frame (1) and above the lower punching cylinders (9), a rear suspension (6) is fixed. The upper punching cylinders (7) are fixed to the bottom of the rear suspension (6). The movement direction of the piston rod of the lower punching cylinder (9) and the movement direction of the upper punching cylinder (7) are in a counter-punching state. A lower die for punching circular holes is installed at the top of the lower punching cylinder (9), and an upper die for punching circular holes is installed at the bottom of the upper punching cylinder (7). A rear pressing cylinder (8) for pressing the automotive bumper during punching is installed at the middle of the rear suspension (6).

3. The integrated punching and welding equipment for an automotive bumper according to claim 2, characterized in that: The electric linear guide (3) is installed at the inner bottom of the frame (1). The carrier plate (10) is fixed to the slider of the electric linear guide (3). A lifting cylinder (11) is fixed to the top of the carrier plate (10). The lifting end of the lifting cylinder (11) is connected to the bracket (16). The electric linear guide (3) is electrically connected to the controller (2).

4. An integrated punching and welding device for an automobile bumper according to claim 3, characterized in that: On one side of the lifting cylinder (11) at the top of the carrier plate (10), a vertical plate (12) is vertically fixed. On one side of the vertical plate (12), a sliding plate is slidably connected through a slide rail. The sliding plate is fixedly connected to the bracket (16).

5. The integrated punching and welding equipment for automotive bumper according to claim 3, characterized in that: The rebound part includes a limit rod (26). The limit rod (26) passes through the cross plate (23), and one end of the limit rod (26) is connected to the fixed frame (24). A first limit block (28) is fixed to the other end of the limit rod (26). A first return spring (27) is sleeved on the outer part of the limit rod (26) between the fixed frame (24) and the cross plate (23).

6. The integrated punching and welding equipment for an automobile bumper according to claim 1, wherein: The pressing mechanism includes two upper connecting plates (31) and two lower connecting plates (32). The two upper connecting plates (31) are respectively fixed to both sides of the gland (18). The two lower connecting plates (32) are respectively fixed to both sides of the material box (15). A guide post (33) is fixed to the bottom of the upper connecting plate (31). The guide post (33) passes through the lower connecting plate (32). A second limit block (35) is fixed to the bottom of the guide post (33). A second return spring (34) is sleeved on the outer part of the guide post (33) between the lower connecting plate (32) and the second limit block (35).

7. An integrated punching and welding device for an automobile bumper according to claim 6, characterized in that: Two insertion blocks (21) are symmetrically fixed to one side of the material loading plate (22) facing the gland (18). Two insertion slots (30) are symmetrically formed on one side of the gland (18) facing the insertion blocks (21). The cross-sectional shape of the insertion blocks (21) is similar to that of the [description is incomplete here], and both are right triangle structures. The height of the insertion blocks (21) is the same as the thickness of the material loading plate (22).

8. The integrated punching and welding equipment for an automobile bumper according to claim 1, characterized in that: A pushing mechanism for pushing the automotive radar bracket inside it is arranged on one side of the material box (15); The pushing mechanism includes a cylinder (17) and a support ring (39). The support ring (39) is sleeved outside the guide rod (38). The cylinder (17) is fixed outside the material box (15). A piston is arranged inside the cylinder (17). A push rod (36) is connected to the top of the piston. A connecting rod (37) is connected between the top of the push rod (36) and the support ring (39). A rectangular hole for the movement of the connecting rod (37) is formed in the outer wall of the material box (15).

9. The integrated punching and welding equipment for an automobile bumper according to claim 8, characterized in that: A gas injection mechanism for supplying gas to the cylinder (17) is arranged on the end cover of the electric linear guide (3); The gas injection mechanism includes a fixing plate (41). The fixing plate (41) is fixed on the end cover of the electric linear guide (3). A pressing plate (42) is arranged on the side of the fixing plate (41) facing the bearing plate (10). An airbag (43) is arranged between the pressing plate (42) and the fixing plate (41). A third return spring (44) is arranged between the outer part of the airbag (43) and the pressing plate (42) and the fixing plate (41). An intake check valve (45) and an outlet check valve (46) are connected to one side of the airbag (43). A communication pipe (47) is connected between the outlet check valve (46) and the cylinder (17). A pressure relief valve (48) is installed on the communication pipe (47); A screw rod (49) is fixed on the side of the bearing plate (10) facing the pressing plate (42). A screw tube (50) is threadedly connected to the outside of the screw rod (49). A top block (51) is fixed on the side of the screw tube (50) close to the pressing plate (42).

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