Pressure welding equipment

Abstract

The present invention relates to the field of pressure welding processing technology, and in particular to a pressure welding device, including a frame, having a crimping station and a welding station; a clamp device, suitable for fixing a lower fork leg; a crimping device, suitable for crimping a rear cover into the lower fork leg; a welding device, suitable for welding the rear cover and the lower fork leg; a transfer device, suitable for transferring the clamp device between the crimping station and the welding station. In the pressure welding device of the present invention, when working, the clamp device is first at the crimping station, the operator puts the lower fork leg into the clamp device, and then the crimping device crimps the lower fork leg so that the rear cover is pressed into the lower fork leg, then the transfer device transfers the clamp device to the welding station, the welding device welds the lower fork leg and the rear cover, after welding, the transfer device transfers the clamp device to the crimping station again, the operator removes the welded lower fork leg, and puts the new lower fork leg into the clamp device, and the automatic integration of crimping and welding is realized by clamping once, thereby improving the processing efficiency and precision.

Description

Technical Field

[0001] The invention relates to the technical field of pressure welding processing, in particular to a pressure welding device. Background Art

[0002] The lower fork leg is one of the essential parts of an electric vehicle.

[0003] During processing, it is necessary to press a rear cover 7 onto the lower fork leg 6, and weld the rear cover 7 to the lower fork leg 6. Figure 1 The rear cover 7 is pressed into the lower fork leg 6 , and a through hole 71 is also provided on the rear cover 7 .

[0004] The existing processing method is to first press the rear cover 7 into the lower fork leg 6 on a hydraulic press, and then take the lower fork leg 6 with the rear cover 7 to the welding equipment for welding. However, this method has low efficiency and high cost because it requires repeated clamping. Summary of the invention

[0005] The technical problem to be solved by the present invention is: in order to solve the technical problems in the prior art, the present invention provides a pressure welding device.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a pressure welding device, including a frame, having a crimping station and a welding station; a clamp device, suitable for fixing the lower fork leg; a crimping device, suitable for crimping the rear cover into the lower fork leg; a welding device, suitable for welding the rear cover and the lower fork leg; a transfer device, suitable for transferring the clamp device between the crimping station and the welding station.

[0007] The pressure welding equipment of the present invention switches the clamp device between the crimping station and the welding station through the transfer device. When working, the clamp device is first in the crimping station, and the operator puts the lower fork leg into the clamp device, and then the crimping device crimps the lower fork leg so that the rear cover is pressed into the lower fork leg. Then the transfer device transfers the clamp device to the welding station, and the welding device welds the lower fork leg and the rear cover. After welding, the transfer device transfers the clamp device to the crimping station again, and the operator removes the welded lower fork leg and puts the new lower fork leg into the clamp device. One-time clamping realizes automatic integration of crimping and welding, thereby improving processing efficiency and precision.

[0008] Furthermore, the transfer device includes a rotating member and a turntable, the rotating member is arranged on the frame, and the output end of the rotating member is connected to the turntable.

[0009] Furthermore, the clamp device comprises a clamping mechanism and a supporting mechanism, both of which are arranged on the movable end of the transfer device, the supporting mechanism is suitable for providing support for the lower fork leg, and the clamping mechanism is suitable for clamping the lower fork leg.

[0010] Furthermore, the supporting mechanism includes a connecting plate connected to the movable end of the transfer device; a movable plate arranged above the connecting plate; a supporting rod arranged below the movable plate and passing through the movable end of the transfer device; a limiting rod connected to the top surface of the movable plate, the limiting rod being used for the lower fork leg to be mounted; a guide rod, one end of which is connected to the movable plate and the other end is inserted into the connecting plate; a stabilizing spring mounted on the guide rod, one end of which is in contact with the movable plate and the other end is in contact with the connecting plate; when the crimping device is crimping, the supporting rod is in contact with the frame to transmit the force to the frame.

[0011] Furthermore, a receiving hole is provided on the top surface of the limiting rod, and a welding slag prevention pin is provided in the receiving hole. When the rear cover is crimped onto the lower fork leg, the welding slag prevention pin is inserted into the through hole.

[0012] Furthermore, the welding device adopts a welding robot.

[0013] Furthermore, the crimping device includes a telescopic part, which is arranged on the frame; an adsorption part, which is connected to the movable end of the telescopic part; a boss is provided on the adsorption part, the back cover is sleeved on the boss, and a negative pressure hole is provided on the boss.

[0014] Furthermore, a fixed window is provided on the frame, and a rotating window is connected to the turntable. When the welding device is working, the rotating window is located inside the fixed window and is flush with the fixed window.

[0015] Furthermore, a wire is connected to the clamp device, and one end of the wire away from the clamp device is connected to the movable end of the transfer device. A carbon brush is provided on the frame, and the carbon brush is always in contact with the movable end of the transfer device and is grounded.

[0016] Furthermore, the frame is provided with a striking cylinder, and the clamping mechanism includes a telescopic cylinder connected to the movable end of the transfer device, and the telescopic cylinder has two movable ends; two clamping blocks are provided opposite to each other, and V-shaped grooves are provided on the opposite sides of the two clamping blocks; a control valve, which is connected to the telescopic cylinder to control the extension and retraction of the two movable ends of the telescopic cylinder; when the clamping mechanism is located at the crimping station, the movable end of the striking cylinder strikes the control valve, and the two movable ends of the telescopic cylinder are extended.

[0017] The beneficial effects of the present invention are:

[0018] 1. The fixture device is switched between the crimping station and the welding station through the transfer device. When working, the fixture device is first at the crimping station, and the operator puts the lower fork leg into the fixture device, and then the crimping device crimps the lower fork leg so that the rear cover is pressed into the lower fork leg. Then the transfer device transfers the fixture device to the welding station, and the welding device welds the lower fork leg and the rear cover. After welding, the transfer device transfers the fixture device to the crimping station again, and the operator removes the welded lower fork leg and puts the new lower fork leg into the fixture device. One-time clamping realizes automatic integration of crimping and welding, which improves processing efficiency and precision.

[0019] 2. By setting the support rod and the movable plate, when the crimping device is crimping, the pressure is transferred to the frame, reducing the force on the movable end of the transfer device, thereby reducing the possibility of deformation of the movable end of the transfer device and ensuring the service life of the transfer device;

[0020] 3. Use welding slag pins to seal the through hole to reduce the possibility of welding slag entering the through hole during welding;

[0021] 4. The welding station is isolated from the crimping station by setting fixed windows and rotating windows, reducing the possibility of damage to the operators at the crimping station;

[0022] 5. Grounding through carbon brushes allows the welding device to form a complete circuit when working. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a schematic diagram of the structure of the lower fork leg and the rear cover in the prior art.

[0025] Figure 2 It is a schematic diagram of the overall pressure welding equipment in the present invention.

[0026] Figure 3 Schematic diagram of a transfer device in the present invention.

[0027] Figure 4 Schematic diagram of a clamp device according to the present invention.

[0028] Figure 5 Schematic diagram of the crimping device in the present invention.

[0029] In the figure: 1. frame; 11. fixed window; 12. striking cylinder; 2. welding device; 3. transfer device; 31. rotating part; 32. turntable; 321. rotating window; 33. divider; 4. crimping device; 41. telescopic part; 42. adsorption part; 421. boss; 5. clamping device; 51. supporting mechanism; 511. connecting plate; 512. movable plate; 513. supporting rod; 514. limiting rod; 5141. accommodating hole; 5142. mounting groove; 5143. mounting hole; 515. guide rod; 516. supporting plate; 52. clamping mechanism; 521. telescopic cylinder; 522. control valve; 523. clamping block; 5231. V-shaped groove; 6. lower fork leg; 7. rear cover; 71. through hole. DETAILED DESCRIPTION

[0030] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The invention discloses a pressure welding device.

[0033] Reference Figures 2 to 5A pressure welding device includes a frame 1 and a welding device 2. The frame 1 has a crimping station and a welding station. The frame 1 is also provided with a transfer device 3 and a crimping device 4. The movable end of the transfer device 3 is connected with a clamp device 5. The clamp device 5 is suitable for fixing the lower fork leg 6. The transfer device 3 is suitable for transferring the clamp device 5 between the crimping station and the welding station. The crimping device 4 is suitable for crimping the rear cover 7 into the lower fork leg 6. The welding device 2 is suitable for welding the rear cover 7 and the lower fork leg 6.

[0034] During operation, the clamp device 5 is first in the crimping station, and the operator places the lower fork leg 6 on the clamp device 5, and then the crimping device 4 crimps the lower fork leg 6, so that the rear cover 7 is pressed into the lower fork leg 6, and then the transfer device 3 transfers the clamp device 5 to the welding station, and the welding device 2 welds the lower fork leg 6 and the rear cover 7. After welding, the transfer device 3 transfers the clamp device 5 to the crimping station again, and the operator removes the welded lower fork leg 6 and places the new lower fork leg 6 on the clamp device 5. One-time clamping realizes the automatic integration of crimping and welding, thereby improving processing efficiency and accuracy.

[0035] Specifically, the transfer device 3 includes a rotating member 31, a divider 33 and a turntable 32. The rotating member 31 is fixedly connected to the bottom of the frame 1, and the output end of the rotating member 31 is connected to the divider 33, and the output end of the divider 33 is connected to the turntable 32. The divider 33 can be a cam divider 33 to ensure that the precision error of the turntable 32 is extremely small each time it rotates. The rotating member 31 can be a motor.

[0036] In this embodiment, two clamping devices 5 are provided, both of which are installed on the turntable 32. The clamping device 5 includes a clamping mechanism 52 and a supporting mechanism 51. The clamping mechanism 52 and the supporting mechanism 51 are both provided on the movable end of the transfer device 3. The supporting mechanism 51 is suitable for providing support for the lower fork leg 6, and the clamping mechanism 52 is suitable for clamping the lower fork leg 6.

[0037] Specifically, the support mechanism 51 includes a connecting plate 511, a movable plate 512, a support rod 513, a limiting rod 514, a guide rod 515, and a stabilizing spring. The connecting plate 511 is fixedly connected to the rotating disk 32, the movable plate 512 is arranged above the connecting plate 511, and the support rod 513 is arranged below the movable plate 512. It can be fixedly connected to the movable plate 512, or it can have no connection relationship with the movable plate 512. One end of the support rod 513 away from the movable plate 512 passes through the rotating disk 32. The limiting rod 514 is fixedly connected to the top surface of the movable plate 512, and the limiting rod 514 is used for the lower fork leg 6 to be sleeved. One end of the guide rod 515 is fixedly connected to the movable plate 512, and the other end is inserted into the connecting plate 511. The stabilizing spring is sleeved on the guide rod 515, one end of the stabilizing spring contacts the movable plate 512, and the other end contacts the connecting plate 511, so as to apply pressure to the movable plate 512 and improve the stability of the movable plate 512. The frame 1 is fixedly connected with a support plate 516, which is used to contact the support rod 513. When the crimping device 4 performs crimping, the support rod 513 and the movable plate 512 move until the support rod 513 contacts the support plate 516, so as to transmit the force to the frame 1.

[0038] More specifically, a receiving hole 5141 is provided on the top surface of the limit rod 514, and a welding slag prevention pin is provided in the receiving hole 5141. When the rear cover 7 is crimped onto the lower fork leg 6, the welding slag prevention pin is inserted into the through hole 71. A mounting groove 5142 is provided on the side wall of the limit rod 514, and a mounting hole 5143 is provided on the mounting groove 5142. The mounting hole 5143 is suitable for screwing a bolt into to fix the welding slag prevention pin. This method is conducive to adjusting the height of the welding slag prevention pin. At the same time, the top of the welding slag prevention pin has a chamfer, which is convenient for guiding the rear cover 7 and improving the crimping accuracy.

[0039] Specifically, the crimping device 4 includes a telescopic member 41 and a suction member 42, the telescopic member 41 is fixedly connected to the frame 1, the suction member 42 is connected to the movable end of the telescopic member 41, a boss 421 is fixedly connected to the suction member 42, the rear cover 7 is sleeved on the boss 421, a negative pressure hole is provided on the boss 421, and the negative pressure hole is connected to negative pressure, which is suitable for sucking the rear cover 7. The telescopic member 41 can be a cylinder or a hydraulic cylinder.

[0040] Furthermore, the welding device 2 may be a welding robot.

[0041] Furthermore, a fixed window 11 is fixedly connected to the frame 1, and a rotating window 321 is fixedly connected to the turntable 32. When the welding device 2 is working, the rotating window 321 is located in the fixed window 11 and is flush with the fixed window 11, which is convenient for isolating the welding station from the crimping station and reducing the possibility of safety hazards to the operators at the crimping station.

[0042] In addition, a wire is connected to the connecting plate 511, and one end of the wire away from the clamp device 5 is connected to the turntable 32. A carbon brush is installed on the frame 1, and the carbon brush contacts the bottom surface of the turntable 32 and is grounded to reduce safety hazards.

[0043] It should be noted that a striking cylinder 12 is installed on the frame 1, and the clamping mechanism 52 includes a telescopic cylinder 521, a control valve 522 and two clamping blocks 523. The telescopic cylinder 521 is fixedly connected to the movable plate 512, and the telescopic cylinder 521 has two movable ends. The two movable ends of the telescopic cylinder 521 are respectively fixedly connected to the two clamping blocks 523, and the two clamping blocks 523 are provided with V-shaped grooves 5231 on the opposite sides, which are convenient for clamping the lower fork leg 6. The control valve 522 is connected to the telescopic cylinder 521 through an air pipe to control the extension and retraction of the two movable ends of the telescopic cylinder 521. When the clamping mechanism 52 is located at the crimping station, the movable end of the striking cylinder 12 hits the control end of the control valve 522, so that the two movable ends of the telescopic cylinder 521 extend.

[0044] Working principle: The clamp device 5 is switched between the crimping station and the welding station through the transfer device 3. During operation, the clamp device 5 is first at the crimping station, and the operator places the lower fork leg 6 on the clamp device 5, and then the crimping device 4 crimps the lower fork leg 6, so that the rear cover 7 is pressed into the lower fork leg 6. Then the transfer device 3 transfers the clamp device 5 to the welding station, and the welding device 2 welds the lower fork leg 6 and the rear cover 7. After welding, the transfer device 3 transfers the clamp device 5 to the crimping station again, and the operator removes the welded lower fork leg 6 and places the new lower fork leg 6 on the clamp device 5. One-time clamping realizes the automatic integration of crimping and welding, thereby improving processing efficiency and precision.

[0045] By setting the support rod 513 and the movable plate 512, when the crimping device 4 is crimping, the pressure is transferred to the frame 1, reducing the force on the movable end of the transfer device 3, thereby reducing the possibility of deformation of the movable end of the transfer device 3, and ensuring the service life of the transfer device 3. The through hole 71 is blocked by placing a welding slag pin, reducing the possibility of welding slag entering the through hole 71 during welding.

[0046] The fixed window 11 and the rotating window 321 are provided to isolate the welding station from the crimping station, thereby reducing the possibility of injury to the operator at the crimping station. The carbon brush is grounded to form a complete circuit when the welding device 2 is working, thereby improving the safety during operation.

[0047] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A pressure welding device, characterized in that: include A frame (1) having a crimping station and a welding station; A clamp device (5) adapted to fix the lower fork leg (6); A crimping device (4) adapted to crimp the rear cover (7) into the lower fork leg (6); A welding device (2) suitable for welding the rear cover (7) and the lower fork leg (6); A transfer device (3) adapted to transfer the clamp device (5) between a crimping station and a welding station; The clamp device (5) comprises a clamping mechanism (52) and a supporting mechanism (51), wherein the clamping mechanism (52) and the supporting mechanism (51) are both arranged on the movable end of the transfer device (3), the supporting mechanism (51) is suitable for providing support for the lower fork leg (6), and the clamping mechanism (52) is suitable for clamping the lower fork leg (6); The supporting mechanism (51) comprises A connecting plate (511) connected to the movable end of the transfer device (3); A movable plate (512) is disposed above the connecting plate (511); A support rod (513) is disposed below the movable plate (512) and passes through the movable end of the transfer device (3); A limiting rod (514) connected to the top surface of the movable plate (512), wherein the limiting rod (514) is used for the lower fork leg (6) to be sleeved; A guide rod (515), one end of which is connected to the movable plate (512) and the other end of which is inserted into the connecting plate (511); A stabilizing spring is sleeved on the guide rod (515), one end of the stabilizing spring contacts the movable plate (512), and the other end contacts the connecting plate (511); When the crimping device (4) performs crimping, the support rod (513) contacts the frame (1) to transmit force to the frame (1); A receiving hole (5141) is provided on the top surface of the limiting rod (514), and a welding slag prevention pin is provided in the receiving hole (5141). When the rear cover (7) is crimped onto the lower fork leg (6), the welding slag prevention pin is inserted into the through hole (71); The frame (1) is provided with a striking cylinder (12), and the clamping mechanism (52) comprises A telescopic cylinder (521) connected to the movable end of the transfer device (3), wherein the telescopic cylinder (521) has two movable ends; Two clamping blocks (523) are provided opposite to each other, and a V-shaped groove (5231) is provided on opposite sides of the two clamping blocks (523). The two clamping blocks (523) are respectively connected to two movable ends of the telescopic cylinder (521); A control valve (522), wherein the control valve (522) is connected to the telescopic cylinder (521) to control the extension and retraction of two movable ends of the telescopic cylinder (521); When the clamping mechanism (52) is located at the crimping station, the movable end of the striking cylinder (12) strikes the control valve (522) and causes the two movable ends of the telescopic cylinder (521) to extend.

2. The pressure welding device according to claim 1, characterized in that: The transfer device (3) comprises a rotating member (31) and a rotating disk (32); the rotating member (31) is arranged on the frame (1); and the output end of the rotating member (31) is connected to the rotating disk (32).

3. The pressure welding device according to claim 1, characterized in that The welding device (2) adopts a welding robot.

4. The pressure welding device according to claim 1, characterized in that The crimping device (4) comprises A telescopic member (41) is arranged on the frame (1); An adsorption member (42) connected to the movable end of the telescopic member (41); The adsorption member (42) is provided with a boss (421), the rear cover (7) is sleeved on the boss (421), and the boss (421) is provided with a negative pressure hole.

5. The pressure welding device according to claim 2, characterized in that The frame (1) is provided with a fixed window (11), the rotating disk (32) is connected with a rotating window (321), and when the welding device (2) is working, the rotating window (321) is located inside the fixed window (11) and is flush with the fixed window (11).

6. The pressure welding device according to claim 1, characterized in that The clamp device (5) is connected to a wire, and one end of the wire away from the clamp device (5) is connected to the movable end of the transfer device (3). The frame (1) is provided with a carbon brush, and the carbon brush is always in contact with the movable end of the transfer device (3). The carbon brush is grounded.

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