Punching and welding integrated equipment for automobile bumpers

Abstract

The invention discloses automobile bumper stamping and welding integrated equipment, and particularly relates to the technical field of automobile bumper stamping and welding, the automobile bumper stamping and welding integrated equipment comprises a frame, a controller is installed outside the frame, and a support used for bearing an automobile bumper is arranged in the frame; a punching mechanism used for punching an automobile bumper and a welding mechanism used for welding an automobile radar support to the automobile bumper are arranged in the frame, and in the process that the automobile bumper moves towards the punching station, feeding of the automobile radar support on the welding station can be achieved; due to the fact that a large number of automobile radar supports can be placed in the material box at a time, workers do not need to temporarily place the automobile radar supports at a welding station when the automobile bumper and the automobile radar supports are welded each time, the efficiency of the equipment is higher, and due to the fact that the automobile radar supports do not need to be frequently and manually placed, the safety is higher.

Description

Technical Field

[0001] The invention relates to the field of automobile bumper punching and welding, and in particular to an integrated automobile bumper punching and welding device. Background Art

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

[0003] In the working process of the existing automobile bumper punching and welding equipment, the automobile bumper is first sent to the punching station for punching. The punching operation is mainly performed by using the punch in the upper die and the concave groove in the lower die. After the punching is completed, it needs to be sent to the welding station for welding of related parts. In the welding process of the automobile radar bracket, ultrasonic welding is mainly used, and before the welding of the automobile radar bracket, it is necessary to manually load the welding station, that is, manually put multiple automobile radar brackets into the welding station. Therefore, the existing automobile bumper punching and welding equipment has low efficiency in the loading process and has safety hazards. Summary of the invention

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

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an integrated punching and welding device for automobile bumpers, comprising a frame, a controller is installed on the outside of the frame, a bracket for supporting the automobile bumper is arranged inside the frame, a punching mechanism for punching holes in the automobile bumper and a welding mechanism for welding the automobile radar bracket to the automobile bumper are arranged inside the frame, 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, and the punching mechanism is located behind the welding mechanism; The welding mechanism comprises a material loading assembly and a welding assembly; The material loading assembly comprises a loading cylinder, an L-shaped plate is fixed to the telescopic end of the loading cylinder, and a loading plate for holding the automotive radar bracket is connected to one side of the L-shaped plate; The welding assembly comprises a welding cylinder, a horizontal plate is fixed to the telescopic end of the welding cylinder, one side of the horizontal plate is connected to a fixing frame through a rebound portion, and an ultrasonic welding machine for welding the automobile thunder car bracket to the automobile bumper is installed inside the fixing frame; The feeding cylinder and the welding cylinder are both installed at the inner bottom of the frame through columns. A front suspension is fixed inside the frame above the welding mechanism. A front clamping cylinder for clamping the car bumper when welding the car radar bracket is installed at the bottom of the front suspension.

[0006] 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, the inner top of the frame is located above the lower punching cylinders and a rear suspension is fixed thereon, the upper punching cylinders are fixed to the bottom of the rear suspension, and the movement direction of the piston rods of the lower punching cylinders and the movement direction of the upper punching cylinders are in a counter-attaching state, a lower die for punching out circular holes is installed at the top of the lower punching cylinders, an upper die for punching out circular holes is installed at the bottom of the upper punching cylinders, and a rear clamping cylinder for clamping a car bumper before punching is installed in the middle of the rear suspension.

[0007] Preferably, the moving mechanism includes an electric linear guide and a supporting plate, the electric linear guide is installed on the inner bottom of the frame, the supporting plate is fixed on the slider of the electric linear guide, a lifting cylinder is fixed on the top of the supporting plate, the lifting end of the lifting cylinder is connected to the bracket, and the electric linear guide is electrically connected to the controller.

[0008] Preferably, a vertical plate is vertically fixed to the top of the supporting plate on one side of the lifting cylinder, a sliding plate is slidably connected to one side of the vertical plate via a sliding rail, and the sliding plate is fixedly connected to the bracket.

[0009] Preferably, a limiting groove for limiting the rectangular surface of the automobile radar bracket is provided inside the carrier plate, and a through hole for the ultrasonic welding machine welding head to pass through is opened inside the carrier plate; The rebound part includes a limit rod, which passes through the horizontal plate, and one end of the limit rod is connected to the fixed frame, the other end of the limit rod is fixed with a first limit block, and the outside of the limit rod is located between the fixed frame and the horizontal plate and is sleeved with a first return spring.

[0010] Preferably, a material box for holding the automobile radar bracket is arranged in front of the welding mechanism, a connecting column is fixed on the front surface of the bearing plate, a support block is fixed on one side of the connecting column at the bottom of the material box, the support block is connected to the material box by bolts, a box door is installed on the front surface of the material box, a pressure cover is installed on the top of the material box through a clamping mechanism, and the material box and the pressure cover are in a connected state, a guide rod is fixed inside the material box, the top 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, and the internal cross-sectional size of the material box and the internal cross-sectional size of the pressure cover are the same as the rectangular surface size of the automobile radar bracket.

[0011] Preferably, the clamping mechanism includes two upper connecting plates and two lower connecting plates, the two upper connecting plates are respectively fixed on both sides of the pressure cover, and the two lower connecting plates are respectively fixed on both sides of the material box, a guide column is fixed to the bottom of the upper connecting plate, the guide column passes through the lower connecting plate, a second limit block is fixed to the bottom of the guide column, and the outside of the guide column is located between the lower connecting plate and the second limit block and is sleeved with a second return spring.

[0012] Preferably, two plug blocks are symmetrically fixed on one side of the carrier plate facing the pressure cover, and two slots are symmetrically opened on one side of the pressure cover facing the plug blocks. The cross-sectional shape of the plug blocks is similar to the cross-sectional shape of , both of which are right-angled triangle structures, and the height of the plug blocks is the same as the thickness of the carrier plate.

[0013] Preferably, a pushing mechanism for pushing the internal automotive radar bracket is provided on one side of the material box; The pushing mechanism includes an air cylinder and a support ring, the support ring is sleeved on the outside of the guide rod, the air cylinder is fixed on the outside of 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, and a rectangular hole for moving the connecting rod is opened on the outer wall of the material box.

[0014] Preferably, the electric linear guide end cover is provided with a gas injection mechanism for providing gas to the gas cylinder; The gas injection mechanism includes a fixing plate, the fixing plate is fixed on the end cover of the electric linear guide, and a pressure plate is arranged on the side of the fixing plate facing the load-bearing plate, and a third return spring is arranged between the pressure plate and the fixing plate, and the outside of the airbag is located between the pressure plate and the fixing plate. An air inlet check valve and an air outlet check valve are connected to one side of the airbag, a connecting pipe is connected between the air outlet check valve and the air cylinder, and a pressure relief valve is installed on the connecting pipe; A screw rod is fixed on the side of the bearing plate facing the pressure plate, a screw tube is connected to the external thread of the screw rod, and a top block is fixed on the side of the screw tube close to the pressure plate.

[0015] In the above technical solution, the technical effects and advantages provided by the present invention are: The present invention can realize the loading of the automobile radar bracket of the welding station during the movement of the automobile bumper to the "punching station", and can replenish the inside of the pressure cover when the automobile bumper is punched and moves to the "welding station", so that the welding station can take out the automobile radar bracket again. Since a large number of automobile radar brackets can be placed in the material box at one time, it is unnecessary for the staff to temporarily put the automobile radar bracket in the welding station every time the automobile bumper is welded with the automobile radar bracket. Therefore, the present equipment is more efficient and safer because there is no need to frequently manually place the automobile radar bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side view of the welding mechanism and the punching mechanism of the present invention; Figure 3 It is a structural schematic diagram of the welding mechanism of the present invention; Figure 4 It is a schematic structural diagram of the bumper bracket of the present invention; Figure 5 It is a structural schematic diagram of the welding mechanism of the present invention; Figure 6 It is a structural schematic diagram of the carrier plate of the present invention; Figure 7 It is a structural schematic diagram of the fixing frame of the present invention; Figure 8 This is an appearance diagram of the material box of the present invention; Fig. 9 It is a structural schematic diagram of the slot of the present invention; Fig.10 This is a schematic diagram of the structure of the material box after the box door of the present invention is opened; Fig.11 for Fig.10 A magnified view of part A; Fig.12 It is a structural schematic diagram of the jacking mechanism of the present invention; Fig.13 It is a structural schematic diagram of the connection between the load-bearing plate and the material box of the present invention; Fig.14 for Fig.13 Enlarged view of part B in .

[0018] Description of reference numerals: 1. Frame; 2. Controller; 3. Electric linear guide; 4. Front suspension; 5. Front clamping cylinder; 6. Rear suspension; 7. Upper punching cylinder; 8. Rear clamping cylinder; 9. Lower punching cylinder; 10. Loading 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. Limiting groove; 21. Insert block; 22. Loading plate; 23. Horizontal plate; 24. Fixed frame; 25. Ultrasonic welding machine; 26. Limiting rod; 2 7. First return spring; 28. First limit block; 29. ​​Support block; 30. Slot; 31. Upper connecting plate; 32. Lower connecting plate; 33. Guide column; 34. Second return spring; 35. Second limit block; 36. Push 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. Inlet check valve; 46. Exhaust check valve; 47. Connecting pipe; 48. Pressure relief valve; 49. Screw; 50. Screw tube; 51. Top block. DETAILED DESCRIPTION

[0019] 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 described in detail below with reference to the accompanying drawings.

[0020] The present invention provides Figure 1-Figure 14 The illustrated automobile bumper punching and welding integrated equipment comprises a frame 1, a controller 2 is installed on the outside of the frame 1, a bracket 16 for supporting the automobile bumper is arranged inside the frame 1 (the bracket 16 is a bracket of the bumper, which is a non-standard design, and the specific bracket structure needs to be designed according to the actual specifications of the automobile bumper. The bracket 16 is not the focus of the present invention, and the design of the bracket 16 also belongs to the conventional technology of the personnel in this field, and will not be repeated here), a punching mechanism for punching holes in the automobile bumper and a welding mechanism for welding the automobile radar bracket to 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, and the punching mechanism is located behind the welding mechanism; The welding mechanism includes a loading assembly and a welding assembly; The loading assembly includes a loading cylinder 13, an L-shaped plate 19 is fixed to the telescopic end of the loading cylinder 13, and a loading plate 22 for holding the automotive radar bracket is connected to one side of the L-shaped plate 19; The welding assembly includes a welding cylinder 14, a horizontal plate 23 is fixed to the telescopic end of the welding cylinder 14, a fixing frame 24 is connected to one side of the horizontal plate 23 through a rebound portion, and an ultrasonic welding machine 25 for welding the automobile thunder car bracket to the automobile bumper is installed inside the fixing frame 24; The feeding cylinder 13 and the welding cylinder 14 are both installed at the inner bottom of the frame 1 through columns. A front suspension 4 is fixed inside the frame 1 above the welding mechanism. A front clamping cylinder 5 is installed at the bottom of the front suspension 4 for clamping the car bumper when welding the car radar bracket.

[0021] Furthermore, the punching mechanism includes two obliquely arranged lower punching cylinders 9 and two obliquely arranged upper punching cylinders 7, the lower punching cylinder 9 is fixed to the inner bottom of the frame 1 through a column, the inner top of the frame 1 is located above the lower punching cylinder 9 and a rear suspension 6 is fixed thereon, the upper punching cylinder 7 is fixed to the bottom of the rear suspension 6, and the movement direction of the piston rod of the lower punching cylinder 9 is in a counter-action state with the movement direction of the upper punching cylinder 7, a lower die for punching out a circular hole is installed at the top of the lower punching cylinder 9, an upper die for punching out a circular hole is installed at the bottom of the upper punching cylinder 7, and a rear clamping cylinder 8 for clamping the automobile bumper for punching again is installed in the middle of the rear suspension 6; the specific "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 adopts a circular "punch" and the lower die adopts a circular "die", which will not be repeated here.

[0022] Furthermore, the moving mechanism includes an electric linear guide 3 and a supporting plate 10. The electric linear guide 3 is installed on the inner bottom of the frame 1. The supporting plate 10 is fixed on the slider of the electric linear guide 3. A lifting cylinder 11 is fixed on the top of the supporting 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.

[0023] Furthermore, a vertical plate 12 is vertically fixed on the top of the load-bearing plate 10 at one side of the lifting cylinder 11, and a slide plate is slidably connected to one side of the vertical plate 12 through a slide rail, and the slide plate is fixedly connected to the bracket 16. The structure of the slide plate is as shown in the attached manual. Figure 4 As shown, through the cooperation between the slide plate and the vertical plate 12, the stability of the lifting cylinder 11 when controlling the bracket 16 to "rise" or "fall" can be further improved.

[0024] Furthermore, a limiting groove 20 for limiting the rectangular surface of the automobile radar bracket is provided inside the material carrier plate 22, and a through hole for the welding head of the ultrasonic welding machine 25 to pass through is opened inside the material carrier plate 22; The rebound part includes a limit rod 26, which passes through the cross plate 23, and one end of the limit rod 26 is connected to the fixed frame 24, and the other end of the limit rod 26 is fixed with a first limit block 28. The outside of the limit rod 26 is located between the fixed frame 24 and the cross plate 23 and is sleeved with a first return spring 27. The first return spring 27 can push the fixed frame 24 outward in real time, thereby ensuring that the fixed frame 24 can return to its initial position even after being pushed by external force.

[0025] Furthermore, a material box 15 for holding the automobile radar bracket is arranged in front of the welding mechanism, a connecting column 40 is fixed to the front surface of the carrying 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 pressure cover 18 is installed on the top of the material box 15 through a clamping mechanism, and the material box 15 and the pressure cover 18 are in a connected state, a guide rod 38 is fixed inside the material box 15, the top 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 automobile radar bracket, and the internal cross-sectional size of the material box 15 and the internal cross-sectional size of the pressure cover 18 are consistent with the internal cross-sectional size of the automobile radar bracket The rectangular surfaces are of the same size, one side of the box door is rotatably 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, which is a conventional "cabinet door lock". The purpose of locking the box door and the material box 15 is to prevent the car radar bracket inside the material box 15 from accidentally falling off. In order to observe the remaining car radar bracket inside the material box 15, a transparent material can be used to make the box door. By using the guide rod 38 and matching the internal cross-sectional size of the material box 15, the stability of the car radar bracket during the upward movement of the material box 15 can be improved. Since the actual car radar bracket is relatively low in weight and has a relatively smooth edge, the friction force experienced by the car radar bracket when moving inside the material box 15 is relatively small and can be basically ignored.

[0026] Furthermore, the clamping 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 pressure cover 18, and the two lower connecting plates 32 are respectively fixed on both sides of the material box 15. A guide column 33 is fixed to the bottom of the upper connecting plate 31. The guide column 33 passes through the lower connecting plate 32. A second limit block 35 is fixed to the bottom of the guide column 33, and the outside of the guide column 33 is located between the lower connecting plate 32 and the second limit block 35 and is sleeved with a second return spring 34. The second return spring 34 will always push the second limit block 35 downward. Therefore, it can ensure that the pressure cover 18 can close the top of the material box 15 in real time without "intervention" of the loading plate 22, thereby preventing the car radar bracket inside the material box 15 from accidentally falling off.

[0027] Specifically, two plug blocks 21 are symmetrically fixed on one side of the carrier plate 22 facing the gland 18, and two slots 30 are symmetrically opened on one side of the gland 18 facing the plug block 21. The cross-sectional shape of the plug block 21 is similar to the cross-sectional shape of the gland 18, both of which are right-angled triangle structures. The height of the plug block 21 is the same as the thickness of the carrier plate 22. When the material box 15 contacts the carrier plate 22, the plug block 21 will first enter the slot 30, and then push the gland 18 upward. As the plug block 21 continues to penetrate, when the plug block 21 completely enters between the gland 18 and the material box 15, due to the plug block 21 The height is the same as the thickness of the material carrier plate 22, which also means that the material carrier plate 22 can completely enter between the pressure cover 18 and the material box 15, so that the material carrier plate 22 can subsequently "take materials" for the automotive radar bracket. In the process of the insert block 21 entering the pressure cover 18 and the material box 15, the material box 15 will squeeze the fixed frame 24, but when the material carrier plate 22 "takes materials" and the material box 15 is removed, the rebound part can be used to ensure that the fixed frame 24 can return to the initial position, so as to ensure that the welding head of the ultrasonic welding machine 25 can be aligned with the through hole of the material carrier plate 22, which is convenient for subsequent welding operations.

[0028] Specifically, one side of the material box 15 is provided with a pushing mechanism for pushing the automotive radar bracket inside it; The pushing mechanism includes an air cylinder 17 and a support ring 39. The support ring 39 is sleeved on the outside of the guide rod 38. The air cylinder 17 is fixed on the outside of 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 moving the connecting rod 37 is opened on the outer wall of the material box 15. Through the pushing mechanism, after the loading plate 22 "takes materials", the automobile radar bracket contained in the material box 15 can be quickly pushed into the pressure cover 18 so that the loading plate 22 can "take materials" again later. When the automobile radar bracket contained in the material box 15 is taken out, the pressure cover 18 can be pulled upward, and then the automobile radar brackets can be pushed into the material box 15 one by one. In order to facilitate pulling the pressure cover 18, a small handle can be installed on the pressure cover 18 to re-replenish the automobile radar bracket to the material box 15.

[0029] Specifically, a gas injection mechanism for providing gas to the gas cylinder 17 is provided on the end cover of the electric linear guide 3; The gas injection mechanism includes a fixing plate 41, which is fixed on the end cover of the electric linear guide 3, and a pressure plate 42 is arranged on the side of the fixing plate 41 facing the bearing plate 10, and a third return spring 44 is arranged between the pressure plate 42 and the fixing plate 41, and the outside of the airbag 43 is located between the pressure plate 42 and the fixing plate 41. An air inlet check valve 45 and an air outlet check valve 46 are connected to one side of the airbag 43, and a connecting pipe 47 is connected between the air outlet check valve 46 and the air cylinder 17, and a pressure relief valve 48 is installed on the connecting pipe 47; A screw 49 is fixed on the side of the carrier plate 10 facing the pressure plate 42, and a solenoid 50 is connected to the external thread of the screw 49. A top block 51 is fixed on the side of the solenoid 50 close to the pressure plate 42 (the airbag 43 can rebound through the third return spring 44. During the rebound process, the airbag 43 takes in air through the air intake check valve 45. When the airbag 43 delivers gas to the connecting pipe 47, it passes through the air outlet check valve 46. By rotating the solenoid 50 to move the top block 51 forward or backward, the compression amount of the airbag 43 can be changed, and then the air intake amount inside the air cylinder 17 can be changed, so as to adjust the upward movement distance of the top rod 36 to push the automotive radar brackets of different heights); In order to improve the stability of the airbag 43, the two end faces of the airbag 43 can be glued and fixed to the pressure plate 42 and the fixing plate 41 respectively, and the third return spring 44, the pressure plate 42 and the fixing plate 41 can be fixed by welding. When the airbag 43 needs to be replaced, the internal gas of the airbag 43 can be released and then taken out from the gap of the third return spring 44.

[0030] The overall working principle of the above scheme is as follows: When in use, the car bumper is first placed on the bracket 16, and then the bracket 16 is driven to rise upward by the lifting cylinder 11, and then the electric linear guide 3 is controlled by the controller 2 to drive the carrier plate 10 and the bracket 16 to move backward as a whole, so that the car bumper moves to the punching mechanism position, i.e., the "punching station"; After the car bumper enters the "punching station", the upper punching cylinder 7, the lower punching cylinder 9 and the rear pressing cylinder 8 are started at the same time. When the rear pressing cylinder 8 works, its telescopic end will further squeeze the car bumper on the bracket 16, and 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; At the same time, when the carrier plate 10, the bracket 16 and the automobile bumper move toward the "punching station" as a whole, the connecting column 40 will also drive the support block 29 and the material box 15 to move toward the welding mechanism, that is, the "welding station". When the automobile bumper reaches the "punching station" accurately, the carrier plate 22 in the welding mechanism will also be fully inserted between the material box 15 and the gland 18. At this time, the top surface of the carrier plate 22 is flush with the bottom of the "rectangular surface" of the automobile radar bracket, and the bottom surface of the carrier plate 22 is flush with the top surface of the material box 15 (see the attached manual for details). Fig.11 , the position of the loading plate 22 is at the position marked at "a"), then, the feeding cylinder 13 is started, driving the loading plate 22 to move upward, thereby lifting the pressure cover 18, and then under the influence of gravity, the automobile radar bracket in the pressure cover 18 will fall onto the loading plate 22, and the rectangular surface of the automobile 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 automobile radar bracket); 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 carrier plate 22. Under the action of the clamping mechanism, the pressure cover 18 will cover the top of the material box 15 again 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 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 will squeeze the pressure plate 42, thereby "compressing" the airbag 43. After that, the gas in the airbag 43 will be transported to the inside of the cylinder 17 through the connecting pipe 47, so as to drive the piston and the push rod 36 inside the cylinder 17 to move upward as a whole, and cooperate with the connecting rod 37 and the support ring 39 to drive the car radar bracket inside the material box 15 to move upward, so as to directly push the car radar inside the material box 15 into the inside of the pressure cover 18, so that the subsequent material carrier plate 22 can take the material; 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 to 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), and 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 the car radar bracket and the car bumper will be welded and fixed, and now a cycle ends.

[0031] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An integrated punching and welding device for automobile bumpers, comprising a frame (1), a controller (2) being installed outside the frame (1), a bracket (16) for supporting the automobile bumper being arranged inside the frame (1), a punching mechanism for punching holes in the automobile bumper and a welding mechanism for welding an automobile radar bracket to the automobile bumper being 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 being arranged inside the frame (1), characterized in that: The punching mechanism is located behind the welding mechanism; The welding mechanism comprises a material loading assembly and a welding assembly; The material loading assembly comprises a loading cylinder (13), an L-shaped plate (19) being fixed to the telescopic end of the loading cylinder (13), and a loading plate (22) for holding a vehicle radar bracket being connected to one side of the L-shaped plate (19); The welding assembly comprises a welding cylinder (14), a transverse plate (23) being fixed to the telescopic end of the welding cylinder (14), one side of the transverse plate (23) being connected to a fixing frame (24) via a rebound portion, and an ultrasonic welding machine (25) for welding the automobile thunder car bracket to the automobile bumper being installed inside the fixing frame (24); The feeding cylinder (13) and the welding cylinder (14) are both mounted on the inner bottom of the frame (1) via columns; a front suspension (4) is fixed inside the frame (1) above the welding mechanism; a front pressing cylinder (5) for pressing a car bumper when welding a car radar bracket is mounted on the bottom of the front suspension (4).

2. The automobile bumper punching and welding integrated equipment according to claim 1, characterized in that: The punching mechanism comprises two inclined lower punching cylinders (9) and two inclined upper punching cylinders (7), wherein the lower punching cylinders (9) are fixed to the inner bottom of the frame (1) via a column, and a rear suspension (6) is fixed to the inner top of the frame (1) above the lower punching cylinders (9), and the upper punching cylinders (7) are fixed to the bottom of the rear suspension (6), and the movement direction of the piston rods of the lower punching cylinders (9) and the movement direction of the upper punching cylinders (7) are in a counter-action state, a lower die for punching out a circular hole is installed at the top of the lower punching cylinders (9), an upper die for punching out a circular hole is installed at the bottom of the upper punching cylinders (7), and a rear pressing cylinder (8) for pressing the automobile bumper for punching holes is installed in the middle of the rear suspension (6).

3. The automobile bumper punching and welding integrated equipment according to claim 2, characterized in that: The moving mechanism comprises an electric linear guide (3) and a bearing plate (10), wherein the electric linear guide (3) is mounted on the inner bottom of the frame (1), the bearing plate (10) is fixed on a slider of the electric linear guide (3), a lifting cylinder (11) is fixed on the top of the bearing plate (10), the lifting end of the lifting cylinder (11) is connected to a bracket (16), and the electric linear guide (3) is electrically connected to a controller (2).

4. The automobile bumper punching and welding integrated equipment according to claim 3, characterized in that: A vertical plate (12) is vertically fixed to the top of the bearing plate (10) on one side of the lifting cylinder (11), and a sliding plate is slidably connected to one side of the vertical plate (12) via a sliding rail, and the sliding plate is fixedly connected to the bracket (16).

5. The automobile bumper punching and welding integrated equipment according to claim 3, characterized in that: The material carrier plate (22) is provided with a limiting groove (20) for limiting the rectangular surface of the automobile radar bracket, and the material carrier plate (22) is provided with a through hole for the welding head of the ultrasonic welding machine (25) to pass through. The rebound portion comprises a limit rod (26), the limit rod (26) passes through the transverse plate (23), one end of the limit rod (26) is connected to the fixed frame (24), the other end of the limit rod (26) is fixed with a first limit block (28), and the outside of the limit rod (26) is located between the fixed frame (24) and the transverse plate (23) and is sleeved with a first return spring (27).

6. The automobile bumper punching and welding integrated equipment according to claim 5, characterized in that: A material box (15) for containing the automobile radar bracket is arranged in front of the welding mechanism, a connecting column (40) is fixed on the front surface of the bearing plate (10), a support block (29) is fixed on 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 pressure cover (18) is installed on the top of the material box (15) by a clamping mechanism, and the material box (15) and the pressure cover (18) are in a connected state, 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 automobile radar bracket, and the internal cross-sectional size of the material box (15) and the internal cross-sectional size of the pressure cover (18) are both the same as the rectangular surface size of the automobile radar bracket.

7. The automobile bumper punching and welding integrated equipment according to claim 6, characterized in that: The clamping mechanism comprises two upper connecting plates (31) and two lower connecting plates (32), the two upper connecting plates (31) being fixed on both sides of the pressure cover (18) respectively, and the two lower connecting plates (32) being fixed on both sides of the material box (15) respectively, a guide column (33) being fixed at the bottom of the upper connecting plate (31), the guide column (33) passing through the lower connecting plate (32), a second limiting block (35) being fixed at the bottom of the guide column (33), and a second return spring (34) being sleeved on the outside of the guide column (33) located between the lower connecting plate (32) and the second limiting block (35).

8. The automobile bumper punching and welding integrated equipment according to claim 7, characterized in that: Two insert blocks (21) are symmetrically fixed on one side of the carrier plate (22) facing the pressure cover (18), and two slots (30) are symmetrically opened on one side of the pressure cover (18) facing the insert blocks (21). The cross-sectional shape of the insert blocks (21) is similar to that of the carrier plate (22), both of which are right-angled triangle structures. The height of the insert blocks (21) is the same as the thickness of the carrier plate (22).

9. The automobile bumper punching and welding integrated equipment according to claim 6, characterized in that: A pushing mechanism for pushing an automobile radar bracket inside the material box (15) is provided on one side of the material box (15); The pushing mechanism comprises an air cylinder (17) and a support ring (39), wherein the support ring (39) is sleeved on the outside of a guide rod (38), the air cylinder (17) is fixed on the outside of a 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), and a rectangular hole for the connecting rod (37) to move is opened on the outer wall of the material box (15).

10. The automobile bumper punching and welding integrated equipment according to claim 9, characterized in that: The end cover of the electric linear guide rail (3) is provided with a gas injection mechanism for providing gas to the gas cylinder (17); The gas injection mechanism comprises a fixing plate (41), the fixing plate (41) being fixed on an end cover of the electric linear guide rail (3), and a pressure plate (42) being arranged on a side of the fixing plate (41) facing the bearing plate (10), a third return spring (44) being arranged between the pressure plate (42) and the fixing plate (41), and an air bag (43) being arranged outside the pressure plate (42) and the fixing plate (41), an air inlet check valve (45) and an air outlet check valve (46) being connected to one side of the air bag (43), a connecting pipe (47) being connected between the air outlet check valve (46) and the air cylinder (17), and a pressure relief valve (48) being installed on the connecting pipe (47); A screw rod (49) is fixed to the side of the bearing plate (10) facing the pressure plate (42), a screw tube (50) is connected to the outer thread of the screw rod (49), and a top block (51) is fixed to the side of the screw tube (50) close to the pressure plate (42).

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