Welding equipment for clamping ring of piston rod of CDC shock absorber

Abstract

The utility model discloses a CDC shock absorber piston rod snap ring welding device, which relates to the technical field of automatic welding, and comprises a positioning tool, an auxiliary pressing mechanism, a symmetric synchronous welding mechanism and an automatic welding controller, the positioning tool and the auxiliary pressing mechanism are respectively arranged on a rack and are used for positioning a snap ring to be welded and a piston rod to be welded, and the symmetric synchronous welding mechanism is arranged on the rack. Rotating power is provided during welding, and the auxiliary pressing mechanism is located on one side of the positioning tool. The positioning tool has the advantages that the clamping ring to be welded and the piston rod to be welded are positioned respectively, the auxiliary pressing mechanism presses the clamping ring to be welded and the piston rod to be welded respectively during welding, and the clamping ring and the piston rod to be welded are matched with the symmetrical synchronous welding mechanism so that welding of four surrounding welding points can be achieved in a two-time symmetrical mode; corresponding point positions on the two sides are synchronously and symmetrically welded in each time of welding, the internal stress problem caused by single-side welding is avoided, and the welding precision of the to-be-welded clamping ring and the to-be-welded piston rod is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automated welding, in particular to a CDC shock absorber piston rod clamp ring welding device. Background Art

[0002] CDC shock absorbers are important parts of automobiles. In the first step of the assembly process of CDC shock absorbers, the piston rod clamp ring needs to be fixed to the specified position of the piston rod, which is usually fixed by welding. However, it is difficult to perform high-precision welding of the rod-shaped piston rod and the ring-shaped clamp ring.

[0003] Therefore, it is urgent to design a device that can automatically realize the automatic assembly welding of the CDC shock absorber piston rod clamp ring, improve the welding accuracy, and reduce the welding deformation caused by welding stress. Utility Model Content

[0004] In order to solve the technical problem of assembling and welding the piston rod clamp ring of a CDC shock absorber, the utility model provides a CDC shock absorber piston rod clamp ring welding device. The following technical solutions are adopted:

[0005] A CDC shock absorber piston rod clamp welding device comprises a positioning tool, an auxiliary clamping mechanism and a symmetrical synchronous welding mechanism. The positioning tool and the auxiliary clamping mechanism are respectively installed on a frame, and are used to position the clamping ring to be welded and the piston rod to be welded, and provide rotational power during welding. The auxiliary clamping mechanism is located on one side of the positioning tool, and is used to clamp the clamping ring to be welded and the piston rod to be welded during welding. The symmetrical synchronous welding mechanism is installed on the frame and located on both sides of the positioning tool, and is used to synchronously weld the set welding positions of the clamping ring to be welded and the piston rod to be welded.

[0006] Optionally, an automatic welding controller can also be provided, which controls the execution actions of the positioning tooling, the auxiliary clamping mechanism, and the symmetrical synchronous welding mechanism respectively. When the positioning tooling completes the positioning of the clamping ring to be welded and the piston rod to be welded, the auxiliary clamping mechanism is controlled to clamp the clamping ring to be welded and the piston rod to be welded, and then the symmetrical synchronous welding mechanism is controlled to symmetrically weld the welding positions on both sides of the clamping ring to be welded and the piston rod to be welded, the positioning tooling is controlled to drive the clamping ring to be welded and the piston rod to be welded to rotate a set angle, and finally the symmetrical synchronous welding mechanism is controlled to weld the other two welding positions of the clamping ring to be welded and the piston rod to be welded again.

[0007] By adopting the above technical scheme, the role of the positioning tooling is to position the welding retaining ring and the piston rod to be welded, and to provide controllable rotation drive during the welding process. In conjunction with the symmetrical synchronous welding mechanism, the welding of four surrounding welding points can be achieved symmetrically in two weldings. Each welding is synchronously and symmetrically welded to the corresponding points on both sides to avoid the internal stress problem caused by one-sided welding. The auxiliary clamping mechanism needs to clamp the welding retaining ring and the piston rod to be welded during welding to avoid welding accuracy and quality problems caused by displacement during the welding process. The automatic welding controller can be a microprocessor, a single-chip microcomputer, a programmable controller, an industrial computer, etc., which can realize automatic control of each actuator.

[0008] Optionally, the positioning tooling includes a first linear guide, a positioning base plate, a rotating cylinder, a slewing support, a positioning seat, a piston rod insulating seat, a retaining ring insulating seat and a clamping cylinder, the track of the first linear guide rail is installed on the frame, the bottom surface of the positioning base plate is installed on the slider of the first linear guide rail, the bottom shell of the rotating cylinder is installed on the top surface of the positioning base plate, the bottom fixed end of the slewing support is installed on the positioning base plate through a bracket, the rotating part of the slewing support is transmission-connected to the rotating part of the rotating cylinder, the bottom of the positioning seat is installed on the rotating part of the slewing support, a piston rod end positioning cavity is provided inside the positioning seat, a retaining ring positioning groove is provided on the top, and clamping claw insertion grooves are provided on both sides, the piston rod insulating seat is installed at the bottom of the piston rod end positioning cavity, the retaining ring insulating seat is installed in the retaining ring positioning groove, the shell of the clamping claw cylinder is installed on the upper surface of the rotating part of the slewing support through a connecting rod, and when the piston rod end positioning cavity of the positioning seat is inserted into the piston rod to be welded, a pair of clamping claws of the clamping claw cylinder are inserted into the clamping claw insertion groove.

[0009] By adopting the above technical scheme, the basis of the positioning tool is the positioning seat, which is installed on the slider of the first linear guide rail instead of being fixed. The left and right sides of the entire tool can be moved to achieve suspended positioning, avoiding internal stress in the subsequent pressing and welding process. The retaining ring positioning groove on the top of the positioning seat can be placed in the retaining ring to be welded, and the piston rod to be welded can pass through the retaining ring to be welded and insert into the piston rod end positioning cavity inside the positioning seat, and rest on the piston rod insulating seat, and then cooperate with the clamping action of the auxiliary clamping mechanism to achieve the split positioning and clamping of the retaining ring to be welded and the piston rod to be welded, thereby making the subsequent welding accuracy higher.

[0010] Optionally, the auxiliary clamping mechanism includes an auxiliary clamping support seat, a module fixing seat, an electric linear module, a first downward pressing pneumatic slide, a piston rod end downward pressing universal sleeve, a second downward pressing pneumatic slide and a pressure fork bakelite block. The bottom of the auxiliary clamping support seat is installed on the frame, the track portion of the electric linear module is installed on the top of the auxiliary clamping support seat through the module fixing seat, the shell of the first downward pressing pneumatic slide is installed on the slider portion of the electric linear module, the piston rod end downward pressing universal sleeve is installed on the slider of the first downward pressing pneumatic slide, when the slider of the first downward pressing pneumatic slide moves downward, the piston rod end downward pressing universal sleeve is driven to sleeve on the end of the piston rod to be welded and provide a clamping force, the shell of the second downward pressing pneumatic slide is installed on the side of the auxiliary clamping support seat and is located below the first downward pressing pneumatic slide, the pressure fork bakelite block is installed on the slider of the second downward pressing pneumatic slide, when the slider of the second downward pressing pneumatic slide moves downward, the pressure fork bakelite block is driven to surround and press on the upper surface of the retaining ring to be welded.

[0011] By adopting the above technical solution, the auxiliary clamping mechanism first uses an electric linear module to move the first downward-pressing pneumatic slide and the second downward-pressing pneumatic slide to the specified position, and then drives the sliders to press down respectively, thereby driving the piston rod end to press down the universal sleeve and the pressure fork bakelite block respectively. The piston rod end to press down the universal sleeve is connected by a universal joint. Since the piston rod is relatively long, the use of a universal joint when pressing down can avoid internal stress.

[0012] Optionally, a symmetrical synchronous welding mechanism includes a symmetrical welding head assembly and a welding circuit assembly, wherein the symmetrical welding head assembly includes a synchronous drive device, a left welding head device and a right welding head device, the synchronous drive device includes a welding drive base plate, a synchronous drive cylinder, a synchronous drive linear slide and a synchronous drive cam push plate, the welding drive base plate is installed on a frame, the housing of the synchronous drive cylinder and the track of the synchronous drive linear slide are respectively installed on the welding drive base plate, the bottom of the synchronous drive cam push plate is installed on the slider of the synchronous drive linear slide, and one side is connected to the piston rod of the synchronous drive cylinder, the left welding head device and the right welding head device are respectively installed on the frame, and the welding positions on both sides of the welding retaining ring and the piston rod to be welded are synchronously welded under the drive of the synchronous drive cam push plate, the welding circuit assembly is installed on the frame, and provides welding power for the left welding head device and the right welding head device.

[0013] Optionally, the left welding head device includes a left welding movable linear slide, a left welding movable seat, a cam follower seat and a left welding head, the track of the left welding movable linear slide is installed on the frame and is located on the left side of the positioning tooling, the left welding movable seat is installed on the slider of the left welding movable linear slide, the cam follower seat is connected to one side of the cam follower seat through a connecting rod, the synchronously driven cam push plate is transmission-connected to the cam follower seat through the connecting rod, and drives the left welding movable seat to move along the track of the left welding movable linear slide, the left welding head is installed on the right side of the left welding movable seat, the left welding head is electrically connected to the welding circuit assembly, and is used for welding the left welding position of the retaining ring to be welded and the piston rod to be welded;

[0014] The structure of the right welding head device is consistent with that of the left welding head device.

[0015] By adopting the above technical scheme, the purpose of the synchronous drive device is to realize the synchronous movement of the left welding head device and the right welding head device. By synchronously driving the cam push plate, the cam follower seats of the left welding head device and the right welding head device are driven to synchronously approach or move away from the positioning tooling on the welding moving linear slide. The left welding head device and the right welding head device can be synchronously welded under the control of the welding circuit component.

[0016] Optionally, the welding circuit assembly includes a thyristor welding controller, a transformer support, a welding transformer and a pair of conductive soft copper busbars. The thyristor welding controller is mounted on a frame, and the welding transformer is mounted on the frame through the transformer support, and power is supplied to the left welding head device and the right welding head device respectively through a pair of conductive soft copper busbars. The automatic welding controller is communicatively connected to the thyristor welding controller.

[0017] By adopting the above technical solution, the thyristor welding controller controls the welding transformer to supply power to the left welding head device and the right welding head device respectively through a pair of conductive soft copper bars, thereby realizing synchronous welding.

[0018] Optionally, a dust suction device is also included, which includes a dust suction device, a dust suction duct and a dust suction duct hanging plate. The dust suction duct hanging plate is installed on the auxiliary clamping support seat. The suction port at one end of the dust suction duct is hung on the dust suction duct hanging plate and is located on one side of the clamping ring insulating seat. The suction port of the vacuum cleaner is connected to the other end of the dust suction duct, and the smoke from the welding process is sucked through the dust suction duct.

[0019] By adopting the above technical solution, the dust suction device can quickly remove the smoke during the welding process.

[0020] Optionally, the automatic welding controller is a chip-based control processor and a control switch, wherein the control processor is respectively controlled and connected to each actuator of the positioning tooling, the auxiliary clamping mechanism, and the symmetrical synchronous welding mechanism, and the control switch is communicatively connected to the control processor.

[0021] A control method for a CDC shock absorber piston rod clamp ring welding device, using a CDC shock absorber piston rod clamp ring welding device to weld a CDC shock absorber clamp ring to be welded and a piston rod to be welded, comprising the following steps:

[0022] Step 1, placing the clamp to be welded on the clamp insulating seat, and then inserting the piston rod to be welded through the clamp to be welded into the positioning cavity of the piston rod end of the positioning seat, and resting on the piston rod insulating seat;

[0023] Step 2, the automatic welding controller controls the auxiliary clamping mechanism to move, the electric linear module to move, the first downward pressing pneumatic slide to drive the pressure fork bakelite block to press on the upper surface of the clamping ring to be welded, and the second downward pressing pneumatic slide to drive the piston rod end to press the universal sleeve downward to press on the end of the piston rod to be welded;

[0024] Step 3, the automatic welding controller controls the symmetrical synchronous welding mechanism to move, and the synchronous driving device drives the left welding head device and the right welding head device to synchronously approach the welding positions on both sides of the clamping ring to be welded and the piston rod to be welded, and the first welding is performed when the laser displacement sensor senses the set position;

[0025] Step 4: The synchronous driving device drives the left welding head device and the right welding head device to leave the welding positions on both sides, and the automatic welding controller controls the rotary cylinder to drive the positioning seat to rotate 90°, and repeats step 3 to perform the second welding;

[0026] Step 5, control each actuator to reset and remove the welded parts.

[0027] Optionally, during the welding process, the automatic welding controller controls the vacuum cleaner to start and suck the fumes of the welding process through the vacuum duct.

[0028] In summary, the present invention includes at least one of the following beneficial technical effects:

[0029] The utility model can provide a CDC shock absorber piston rod clamp ring welding device. The positioning tooling has the function of separately positioning the clamp ring to be welded and the piston rod to be welded. The auxiliary clamping mechanism separately clamps the clamp ring to be welded and the piston rod to be welded during welding. The symmetrical synchronous welding mechanism can realize two weldings symmetrically to realize the welding of four surrounding welding points. Each welding is synchronously and symmetrically welded at the corresponding points on both sides, avoiding the internal stress problem caused by one-side welding and improving the welding accuracy of the clamp ring to be welded and the piston rod to be welded. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional structural schematic diagram of a CDC shock absorber piston rod clamp ring welding device of the utility model;

[0031] Figure 2 It is a three-dimensional structural schematic diagram of a positioning tool for a CDC shock absorber piston rod clamp ring welding device of the utility model;

[0032] Figure 3 This is a schematic diagram of the positioning tooling structure of a CDC shock absorber piston rod clamp ring welding equipment of the utility model;

[0033] Figure 4 It is a three-dimensional structural schematic diagram of an auxiliary clamping mechanism of a CDC shock absorber piston rod clamp ring welding device of the utility model;

[0034] Figure 5 This is a structural schematic diagram of an auxiliary clamping mechanism of a CDC shock absorber piston rod clamping ring welding device of the utility model;

[0035] Figure 6 It is a three-dimensional structural schematic diagram of a symmetrical synchronous welding mechanism of a CDC shock absorber piston rod clamp ring welding device of the utility model;

[0036] Figure 7 This is a structural schematic diagram of a symmetrical synchronous welding mechanism of a CDC shock absorber piston rod clamp ring welding device of the utility model;

[0037] Figure 8 The utility model is a three-dimensional structural schematic diagram of a welding circuit component of a CDC shock absorber piston rod clamp ring welding device.

[0038] Explanation of reference numerals: 1. Positioning fixture; 11. First linear guide rail; 12. Positioning base plate; 13. Rotating cylinder; 14. Rotary support; 15. Positioning seat; 151. Clamping jaw insertion groove; 16. Piston rod insulating seat; 17. Clamping ring insulating seat; 18. Clamping jaw cylinder; 2. Auxiliary clamping mechanism; 21. Auxiliary clamping support seat; 22. Module fixing seat; 23. Electric linear module; 24. First downward pressure pneumatic slide; 25. Piston rod end downward pressure universal sleeve; 26. Second downward pressure pneumatic slide; 27. Pressure fork bakelite block; 3. Symmetrical synchronous welding mechanism; 311. Welding drive Moving base plate; 312, synchronous drive cylinder; 313, synchronous drive linear slide; 314, synchronous drive cam push plate; 32, left welding head device; 321, left welding movable linear slide; 322, left welding movable seat; 323, cam follower seat; 324, left welding head; 33, right welding head device; 34, thyristor welding controller; 35, transformer support; 36, welding transformer; 37, conductive soft copper busbar; 51, vacuum cleaner; 52, dust suction duct; 53, dust suction duct hanging plate; 100, frame; 101, retaining ring to be welded; 102, piston rod to be welded. DETAILED DESCRIPTION

[0039] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0040] The utility model embodiment discloses a CDC shock absorber piston rod clamp ring welding device.

[0041] Reference Figure 1 - Figure 8 Embodiment 1, a CDC shock absorber piston rod clamp welding device, including a positioning tool 1, an auxiliary clamping mechanism 2 and a symmetrical synchronous welding mechanism 3, the positioning tool 1 and the auxiliary clamping mechanism 2 are respectively installed on a frame 100, for positioning a clamping ring 101 to be welded and a piston rod 102 to be welded, and providing rotational power during welding, the auxiliary clamping mechanism 2 is located on one side of the positioning tool 1, for clamping the clamping ring 101 to be welded and the piston rod 102 to be welded during welding, the symmetrical synchronous welding mechanism 3 is installed on the frame 100, and is located on both sides of the positioning tool 1, for synchronously welding the clamping ring 101 to be welded and the piston rod 102 to be welded at the set welding position.

[0042] The automatic welding controller controls the execution actions of the positioning tooling 1, the auxiliary clamping mechanism 2, and the symmetrical synchronous welding mechanism 3 respectively. When the positioning tooling 1 completes the positioning of the to-be-welded clamping ring 101 and the to-be-welded piston rod 102, the auxiliary clamping mechanism 2 is controlled to clamp the to-be-welded clamping ring 101 and the to-be-welded piston rod 102, and then the symmetrical synchronous welding mechanism 3 is controlled to symmetrically weld the welding positions on both sides of the to-be-welded clamping ring 101 and the to-be-welded piston rod 102, the positioning tooling 1 is controlled to drive the to-be-welded clamping ring 101 and the to-be-welded piston rod 102 to rotate a set angle, and finally the symmetrical synchronous welding mechanism 3 is controlled to weld the other two sides of the to-be-welded clamping ring 101 and the to-be-welded piston rod 102 again.

[0043] The function of the positioning tool 1 is to position the welding retaining ring 101 and the piston rod 102 to be welded, and to provide controllable rotation drive during the welding process. In conjunction with the symmetrical synchronous welding mechanism 3, the welding of four surrounding welding points can be achieved symmetrically in two weldings. Each welding is synchronously and symmetrically welded to the corresponding points on both sides to avoid the internal stress problem caused by one-sided welding. The auxiliary clamping mechanism 2 needs to clamp the welding retaining ring 101 and the piston rod 102 to be welded during welding to avoid welding accuracy and quality problems caused by displacement during the welding process. The automatic welding controller can be a microprocessor, a single-chip microcomputer, a programmable controller, an industrial computer, etc., which can realize automatic control of each actuator.

[0044] Embodiment 2, the positioning fixture 1 includes a first linear guide rail 11, a positioning base plate 12, a rotary cylinder 13, a slewing support 14, a positioning seat 15, a piston rod insulating seat 16, a clamping ring insulating seat 17 and a clamping claw cylinder 18, the track of the first linear guide rail 11 is installed on the frame 100, the bottom surface of the positioning base plate 12 is installed on the slider of the first linear guide rail 11, the bottom shell of the rotary cylinder 13 is installed on the top surface of the positioning base plate 12, the bottom fixed end of the slewing support 14 is installed on the positioning base plate 12 through a bracket, and the rotating part of the slewing support 14 is connected to the rotating part of the rotary cylinder 13. The output shaft is connected for transmission, the bottom of the positioning seat 15 is installed on the rotating part of the slewing support 14, a piston rod end positioning cavity is provided inside the positioning seat 15, a snap ring positioning groove is provided on the top, and claw insertion grooves 151 are provided on both sides, the piston rod insulating seat 16 is installed at the bottom of the piston rod end positioning cavity, the snap ring insulating seat 17 is installed in the snap ring positioning groove, and the shell of the claw cylinder 18 is installed on the upper surface of the rotating part of the slewing support 14 through a connecting rod. When the piston rod end positioning cavity of the positioning seat 15 is inserted into the piston rod 102 to be welded, a pair of claws of the claw cylinder 18 are inserted into the claw insertion groove 151.

[0045] The basis of the positioning tool 1 is the positioning seat 15, which is installed on the slider of the first linear guide rail 11 instead of being fixedly installed, so that the left and right sides of the entire tool can be moved to achieve suspended positioning, avoiding internal stress in the subsequent pressing and welding process, and the retaining ring positioning groove on the top of the positioning seat 15 can be placed in the retaining ring 101 to be welded, and the piston rod 102 to be welded can pass through the retaining ring 101 to be welded and insert into the piston rod end positioning cavity inside the positioning seat 15, and rest on the piston rod insulating seat 16, and then cooperate with the clamping action of the auxiliary clamping mechanism 2 to achieve the split positioning and clamping of the retaining ring 101 to be welded and the piston rod 102 to be welded, thereby making the subsequent welding accuracy higher.

[0046] Embodiment 3, the auxiliary clamping mechanism 2 includes an auxiliary clamping support seat 21, a module fixing seat 22, an electric linear module 23, a first downward pressing pneumatic slide 24, a piston rod end downward pressing universal sleeve 25, a second downward pressing pneumatic slide 26 and a pressure fork bakelite block 27, the bottom of the auxiliary clamping support seat 21 is installed on the frame 100, the track portion of the electric linear module 23 is installed on the top of the auxiliary clamping support seat 21 through the module fixing seat 22, the housing of the first downward pressing pneumatic slide 24 is installed on the slider portion of the electric linear module 23, and the piston rod end downward pressing universal sleeve 25 is installed On the slider of the first downward-pressing pneumatic slide 24, when the slider of the first downward-pressing pneumatic slide 24 moves downward, the piston rod end is driven to press the universal sleeve 25 downward to be sleeved on the end of the piston rod 102 to be welded, and provide a clamping force. The shell of the second downward-pressing pneumatic slide 26 is installed on the side of the auxiliary clamping support seat 21 and is located below the first downward-pressing pneumatic slide 24. The pressure fork bakelite block 27 is installed on the slider of the second downward-pressing pneumatic slide 26. When the slider of the second downward-pressing pneumatic slide 26 moves downward, the pressure fork bakelite block 27 is driven to be pressed in a surrounding manner on the upper surface of the retaining ring 101 to be welded.

[0047] The auxiliary clamping mechanism 2 first uses the electric linear module 23 to move the first downward-pressing pneumatic slide 24 and the second downward-pressing pneumatic slide 26 to the specified position, and then drives the sliders to press down respectively, thereby driving the piston rod end to press down the universal sleeve 25 and the pressure fork bakelite block 27 respectively. The piston rod end to press down the universal sleeve 25 is connected by a universal rotating part. Since the piston rod is relatively long, the use of a universal rotating part when pressing down can avoid internal stress.

[0048] Embodiment 4, the symmetrical synchronous welding mechanism 3 includes a symmetrical welding head assembly and a welding circuit assembly, the symmetrical welding head assembly includes a synchronous drive device, a left welding head device 32 and a right welding head device 33, the synchronous drive device includes a welding drive base plate 311, a synchronous drive cylinder 312, a synchronous drive linear slide 313 and a synchronous drive cam push plate 314, the welding drive base plate 311 is installed on the frame 100, the housing of the synchronous drive cylinder 312 and the track of the synchronous drive linear slide 313 are respectively installed on the welding drive base plate 31 ... On the seat plate 311, the bottom of the synchronous drive cam push plate 314 is installed on the slider of the synchronous drive linear slide 313, and one side is connected to the piston rod of the synchronous drive cylinder 312. The left welding head device 32 and the right welding head device 33 are respectively installed on the frame 100. Under the drive of the synchronous drive cam push plate 314, the welding positions on both sides of the welding retaining ring 101 to be welded and the piston rod 102 to be welded are synchronously welded. The welding circuit component is installed on the frame 100 and provides welding power for the left welding head device 32 and the right welding head device 33.

[0049] Embodiment 5, the left welding head device 32 includes a left welding movable linear slide 321, a left welding movable seat 322, a cam follower seat 323 and a left welding head 324, the track of the left welding movable linear slide 321 is installed on the frame 100 and is located on the left side of the positioning tool 1, the left welding movable seat 322 is installed on the slider of the left welding movable linear slide 321, the cam follower seat 323 is connected to one side of the cam follower seat 323 through a connecting rod, the synchronous driving cam push plate 314 is connected to the cam follower seat 323 through the connecting rod, and drives the left welding movable seat 322 to move along the track of the left welding movable linear slide 321, the left welding head 324 is installed on the right side of the left welding movable seat 322, and the left welding head 324 is electrically connected to the welding circuit assembly, and is used for welding the left welding position of the retaining ring 101 to be welded and the piston rod 102 to be welded;

[0050] The right welding head device 33 has the same structure as the left welding head device 32 .

[0051] The purpose of the synchronous drive device is to realize the synchronous movement of the left welding head device 32 and the right welding head device 33. By synchronously driving the cam push plate 314, the cam follower seat 323 of the left welding head device 32 and the right welding head device 33 are driven to synchronously approach the positioning tool 1 or move away from the positioning tool 1 on the welding moving linear slide. The left welding head device 32 and the right welding head device 33 can be synchronously welded under the control of the welding circuit component.

[0052] Embodiment 6, the welding circuit assembly includes a thyristor welding controller 34, a transformer support 35, a welding transformer 36 and a pair of conductive soft copper busbars 37, the thyristor welding controller 34 is mounted on the frame 100, the welding transformer 36 is mounted on the frame 100 through the transformer support 35, and the left welding head device 32 and the right welding head device 33 are powered respectively through a pair of conductive soft copper busbars 37, and the automatic welding controller is communicatively connected with the thyristor welding controller 34.

[0053] The thyristor welding controller 34 controls the welding transformer 36 to supply power to the left welding head device 32 and the right welding head device 33 through a pair of conductive soft copper bars 37, thereby achieving synchronous welding.

[0054] Embodiment 7 also includes a dust suction device, which includes a dust collector 51, a dust suction duct 52 and a dust suction duct hanging plate 53. The dust suction duct hanging plate 53 is installed on the auxiliary clamping support seat 21. The suction port at one end of the dust suction duct 52 is hung on the dust suction duct hanging plate 53 and is located on one side of the clamping ring insulating seat 17. The suction port of the dust collector 51 is connected to the other end of the dust suction duct 52, and the smoke of the welding process is sucked through the dust suction duct 52.

[0055] The dust suction device can quickly extract the fumes from the welding process.

[0056] Example 8, the automatic welding controller is a chip-based control processor and control switch, the control processor is respectively controlled and connected with the actuators of the positioning tool 1, the auxiliary clamping mechanism 2, and the symmetrical synchronous welding mechanism 3, and the control switch is communicatively connected with the control processor.

[0057] Embodiment 9, a control method of a CDC shock absorber piston rod clamp ring welding device, using a CDC shock absorber piston rod clamp ring welding device to weld a CDC shock absorber clamp ring 101 to be welded and a piston rod 102 to be welded, comprising the following steps:

[0058] Step 1, place the to-be-welded clamp ring 101 on the clamp ring insulating seat 17, then insert the to-be-welded piston rod 102 through the to-be-welded clamp ring 101 into the piston rod end positioning cavity of the positioning seat 15, and abut against the piston rod insulating seat 16;

[0059] Step 2, the automatic welding controller controls the auxiliary clamping mechanism 2 to move, the electric linear module 23 to move, the first downward pressing pneumatic slide 24 to drive the pressure fork bakelite block 27 to press on the upper surface of the clamp ring 101 to be welded, and the second downward pressing pneumatic slide 26 drives the piston rod end to press the universal sleeve 25 downward to press on the end of the piston rod 102 to be welded;

[0060] Step 3, the automatic welding controller controls the symmetrical synchronous welding mechanism 3 to move, and the synchronous driving device drives the left welding head device 32 and the right welding head device 33 to synchronously approach the welding positions on both sides of the to-be-welded clamp ring 101 and the to-be-welded piston rod 102, and the first welding is performed when the laser displacement sensor senses the set position;

[0061] Step 4, the synchronous driving device drives the left welding head device 32 and the right welding head device 33 to leave the welding positions on both sides, the automatic welding controller controls the rotary cylinder 13 to drive the positioning seat 15 to rotate 90°, and repeats step 3 to perform the second welding;

[0062] Step 5, control each actuator to reset and remove the welded parts.

[0063] In Example 10, during the welding process, the automatic welding controller controls the vacuum cleaner 51 to start sucking the fume of the welding process through the vacuum duct 52.

[0064] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A CDC shock absorber piston rod clamp ring welding device, characterized in that: The invention comprises a positioning tool (1), an auxiliary clamping mechanism (2) and a symmetrical synchronous welding mechanism (3); the positioning tool (1) and the auxiliary clamping mechanism (2) are respectively mounted on a frame (100) and are used to position a clamping ring (101) to be welded and a piston rod (102) to be welded, and provide rotational power during welding; the auxiliary clamping mechanism (2) is located on one side of the positioning tool (1) and is used to clamp the clamping ring (101) to be welded and the piston rod (102) to be welded during welding; the symmetrical synchronous welding mechanism (3) is mounted on the frame (100) and is located on both sides of the positioning tool (1) and is used to synchronously weld the clamping ring (101) to be welded and the piston rod (102) to be welded at the set welding position.

2. The CDC shock absorber piston rod clamp ring welding equipment according to claim 1, characterized in that: The positioning tool (1) comprises a first linear guide rail (11), a positioning base plate (12), a rotary cylinder (13), a slewing support (14), a positioning seat (15), a piston rod insulating seat (16), a clamping ring insulating seat (17) and a clamping claw cylinder (18), wherein the track of the first linear guide rail (11) is mounted on a frame (100), the bottom surface of the positioning base plate (12) is mounted on a slider of the first linear guide rail (11), the bottom shell of the rotary cylinder (13) is mounted on the top surface of the positioning base plate (12), the bottom fixed end of the slewing support (14) is mounted on the positioning base plate (12) through a bracket, and the rotating part of the slewing support (14) is connected to the rotary cylinder (18). 3) is connected to the rotating output shaft of the slewing support (14), the bottom of the positioning seat (15) is installed on the rotating part of the slewing support (14), a piston rod end positioning cavity is provided inside the positioning seat (15), a snap ring positioning groove is provided on the top, and clamping claw insertion grooves (151) are provided on both sides, the piston rod insulating seat (16) is installed at the bottom of the piston rod end positioning cavity, the snap ring insulating seat (17) is installed in the snap ring positioning groove, and the shell of the clamping claw cylinder (18) is installed on the upper surface of the rotating part of the slewing support (14) through a connecting rod, when the piston rod end positioning cavity of the positioning seat (15) is inserted into the piston rod (102) to be welded, a pair of clamping claws of the clamping claw cylinder (18) are inserted into the clamping claw insertion grooves (151).

3. The CDC shock absorber piston rod clamp ring welding equipment according to claim 2, characterized in that: The auxiliary clamping mechanism (2) comprises an auxiliary clamping support seat (21), a module fixing seat (22), an electric linear module (23), a first downward pressing pneumatic slide (24), a piston rod end downward pressing universal sleeve (25), a second downward pressing pneumatic slide (26) and a pressure fork bakelite block (27), wherein the bottom of the auxiliary clamping support seat (21) is mounted on the frame (100), the track portion of the electric linear module (23) is mounted on the top of the auxiliary clamping support seat (21) through the module fixing seat (22), the housing of the first downward pressing pneumatic slide (24) is mounted on the slider portion of the electric linear module (23), the piston rod end downward pressing universal sleeve (25) is mounted on the ...) 25) is installed on the slider of the first downward-pressing pneumatic slide (24). When the slider of the first downward-pressing pneumatic slide (24) moves downward, the piston rod end is driven to press the universal sleeve (25) downward to cover the end of the piston rod (102) to be welded and provide a clamping force. The shell of the second downward-pressing pneumatic slide (26) is installed on the side of the auxiliary clamping support seat (21) and is located below the first downward-pressing pneumatic slide (24). The pressure fork bakelite block (27) is installed on the slider of the second downward-pressing pneumatic slide (26). When the slider of the second downward-pressing pneumatic slide (26) moves downward, the pressure fork bakelite block (27) is driven to surround and press on the upper surface of the retaining ring (101) to be welded.

4. The CDC shock absorber piston rod clamp ring welding equipment according to claim 1, characterized in that: The symmetrical synchronous welding mechanism (3) comprises a symmetrical welding head assembly and a welding circuit assembly. The symmetrical welding head assembly comprises a synchronous driving device, a left welding head device (32) and a right welding head device (33). The synchronous driving device comprises a welding driving base plate (311), a synchronous driving cylinder (312), a synchronous driving linear slide (313) and a synchronous driving cam push plate (314). The welding driving base plate (311) is mounted on a frame (100). The housing of the synchronous driving cylinder (312) and the track of the synchronous driving linear slide (313) are respectively mounted on the welding driving base plate. (311), the bottom of the synchronously driven cam push plate (314) is installed on the slider of the synchronously driven linear slide (313), and one side is connected to the piston rod of the synchronously driven cylinder (312). The left welding head device (32) and the right welding head device (33) are respectively installed on the frame (100). Under the drive of the synchronously driven cam push plate (314), the welding positions on both sides of the welding retaining ring (101) and the piston rod (102) to be welded are synchronously welded. The welding circuit component is installed on the frame (100) and provides welding power for the left welding head device (32) and the right welding head device (33).

5. The CDC shock absorber piston rod clamp ring welding equipment according to claim 4, characterized in that: The left welding head device (32) comprises a left welding movable linear slide (321), a left welding movable seat (322), a cam follower seat (323) and a left welding head (324). The track of the left welding movable linear slide (321) is installed on the frame (100) and is located on the left side of the positioning tool (1). The left welding movable seat (322) is installed on the slider of the left welding movable linear slide (321). The cam follower seat (323) is connected to the cam follower seat through a connecting rod. On one side of the moving seat (323), a synchronously driven cam push plate (314) is connected to the cam follower seat (323) through a connecting rod, and drives the left welding movable seat (322) to move along the track of the left welding movable linear slide (321), and the left welding head (324) is installed on the right side of the left welding movable seat (322), and the left welding head (324) is electrically connected to the welding circuit component, and is used for welding the left welding position of the retaining ring (101) to be welded and the piston rod (102) to be welded; The structure of the right welding head device (33) is consistent with that of the left welding head device (32).

6. The CDC shock absorber piston rod clamp ring welding equipment according to claim 4, characterized in that: The welding circuit assembly comprises a thyristor welding controller (34), a transformer support (35), a welding transformer (36) and a pair of conductive soft copper busbars (37). The thyristor welding controller (34) is mounted on a frame (100). The welding transformer (36) is mounted on the frame (100) through the transformer support (35) and supplies power to a left welding head device (32) and a right welding head device (33) respectively through a pair of conductive soft copper busbars (37).

7. The CDC shock absorber piston rod clamp ring welding equipment according to claim 1, characterized in that: The invention also comprises a dust suction device, which comprises a dust collector (51), a dust suction duct (52) and a dust suction duct hanging plate (53). The dust suction duct hanging plate (53) is mounted on the auxiliary pressing support seat (21). A suction port at one end of the dust suction duct (52) is hung on the dust suction duct hanging plate (53) and is located on one side of the clamping ring insulating seat (17). The suction port of the dust collector (51) is connected to the other end of the dust suction duct (52), and smoke from the welding process is sucked through the dust suction duct (52).

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