Front auxiliary frame welding device

Abstract

The utility model discloses a welding device for a front auxiliary frame, which relates to the technical field of automobile part processing, and comprises a three-axis positioner, a clamp and two welding robots, a baffle plate is arranged in the middle of the three-axis positioner, and the two welding robots are arranged on one side of the three-axis positioner side by side. The side, close to the welding robot, of the three-axis positioner is a welding side, the other side of the three-axis positioner is a preparation side, the welding side and the preparation side are each provided with a first motor and a clamp, the output end of each first motor is fixedly connected with the corresponding clamp, and the clamps axially rotate around rotating shafts where the clamps are located. Through cooperative operation of the three-axis positioner and the two welding robots, rapid welding of the front auxiliary frame is achieved, a baffle plate in the middle of the three-axis positioner effectively protects an operator from being hurt by welding spatter, the clamp can effectively clamp the front auxiliary frame, during welding, a first motor adjusts the deflection angle of the clamp on the welding side, and therefore the front auxiliary frame can be rapidly welded. And better welding of the welding robot is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts processing, and specifically relates to a front subframe welding device. BACKGROUND

[0002] In the modern automobile manufacturing industry, the front subframe is an important structural component of the vehicle, and its quality and manufacturing efficiency directly affect the performance and production cost of the vehicle. The traditional front subframe welding process often relies on manual operation or simple automation devices, which not only leads to low production efficiency, but also makes it difficult to ensure the safety of the operator during the welding process.

[0003] For example, the flying sparks generated during the welding process pose a safety hazard to the operator, and long-term exposure to such an environment can harm the operator's health.

[0004] Based on this, a front subframe welding device is now provided, which can eliminate the drawbacks of existing devices. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a front subframe welding device to solve the problem of flying sparks generated during the welding process posing a safety hazard to the operator.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A front subframe welding device, comprising a three-axis positioner, a clamp and two welding robots, the three-axis positioner comprising a horizontal center shaft and two rotating shafts parallel to the center shaft, the two rotating shafts being symmetrically arranged on both sides of the center shaft and rotating around their axial directions, the three-axis positioner having a baffle plate arranged in the middle, the three-axis positioner having two welding robots arranged side by side on one side, the side of the three-axis positioner close to the welding robots being the welding side, the other side of the three-axis positioner being the standby side, the welding side and the standby side each having a motor one and a clamp, the output end of the motor one being fixedly connected with the clamp, the clamp being axially rotatable around the rotating shaft on which it is arranged;

[0008] The clamp comprises a workbench, the workbench having a workboard one and two workboard twos arranged symmetrically on both sides of the workboard one, the workboard one having two beam seats and two third clamping structures fixed symmetrically on the upper end, each third clamping structure being matched with a beam seat, the workboard one having a first clamping structure installed on the upper end of each corner, and the workboard two having a second clamping structure arranged on the upper end.

[0009] Preferably, the first clamping structure comprises a cylinder one arranged at the upper end of the work plate one, an adjustable arm one is arranged at the output end of the cylinder one, a pressing block one is arranged on the adjustable arm one, a positioning pin is arranged below the pressing block one, and the positioning pin is arranged on the upper end of the bearing seat.

[0010] Preferably, the second clamping structure comprises a moving plate arranged at the upper end of the work plate two, two support seats are fixedly arranged at the upper end of the moving plate, an installation plate is fixedly arranged on the moving plate, a cylinder two is arranged at the upper end of the installation plate, an adjustable arm two is arranged at the output end of the cylinder two, the adjustable arm two is connected with a pressing block two, the pressing block two is arranged above the two support seats, two sliding ports are arranged on the work plate two, sliding blocks are slidably arranged in the sliding ports, the moving plate is fixedly connected with a bottom plate through the sliding blocks, a bottom block is fixedly arranged at the lower end of the bottom plate, the bottom block is arranged in the workbench, and the bottom plate is connected with the adjusting structure.

[0011] Preferably, the adjusting structure comprises a motor two arranged on one side of the workbench, the output end of the motor two extends into the workbench and is fixedly connected with a bidirectional screw rod, the two ends of the bidirectional screw rod are threadedly connected with the bottom block, a worm is fixedly arranged on the middle of the bidirectional screw rod, and the worm is connected with the linkage structure.

[0012] Preferably, the linkage structure comprises a rotating rod rotatably arranged in the workbench, a worm wheel and two bevel gears one are fixedly arranged on the rotating rod, the two bevel gears one are symmetrically arranged on the two sides of the rotating rod, the worm wheel is meshed with the worm, and the bevel gear one is connected with the third clamping structure.

[0013] Preferably, the third clamping structure comprises a bevel gear two, the bevel gear two is meshed with the worm wheel, a rotating cylinder is fixedly arranged at the upper end of the bevel gear two, the rotating cylinder extends to the upper end of the work plate one, a fixed cylinder is arranged at the upper end of the work plate one, the inner wall of the fixed cylinder is rotatably connected with the outer wall of the rotating cylinder, the inner wall of the rotating cylinder is provided with an internal thread, the rotating cylinder is threadedly connected with a screw rod through the internal thread, a pressing plate is fixedly arranged at the upper end of the screw rod, a pressing groove is arranged at the bottom of the other end of the pressing plate, two fixed ears are symmetrically fixedly arranged on the two sides of the pressing plate, the fixed ears are slidably connected with guide rods, and the guide rods are fixedly arranged at the upper end of the work plate one.

[0014] Compared with the prior art, the utility model has the advantages of the following:

[0015] 1、The utility model discloses a three -axis variable position machine and two welding robots cooperate, realized the quick welding of front auxiliary frame, the baffle of three -axis variable position machine middle part effectively protected the operator from the injury of welding splash, and the clamp can effectively clamp the front auxiliary frame, when welding, motor one adjusts the deflection angle of welding side clamp 3, and it is favorable to the better welding of welding robot.

[0016] 2, the utility model discloses a structure, linkage structure with positive third clamping structure cooperation, realize the accurate clamping of front subframe, whether it is crossbeam or longitudinal beam, can be stably fixed on the specified position, avoid the offset or misplacement phenomenon in the welding process. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural diagram of the utility model.

[0018] Figure 2 It is the structural diagram of the utility model clamp.

[0019] Figure 3 It is the structural diagram of the utility model clamp inside.

[0020] Figure 4 It is the structural diagram of the utility model first clamping structure.

[0021] Figure 5 It is the structural diagram of the utility model second clamping structure.

[0022] Figure 6 It is the structural diagram of the utility model adjusting structure and linkage structure.

[0023] Figure 7 It is the structural diagram of the utility model third clamping structure.

[0024] Figure mark annotation: 1, three-axis positioner;11, center shaft;12, rotating shaft;13, baffle;14, motor one;2, welding robot;3, clamp;31, workbench;32, workboard one;321, beam seat;322, guide rod;33, workboard two;331, sliding mouth;34, first clamping structure;341, cylinder one;342, adjusting arm one;343, pressing block one;344, positioning pin;345, pressure bearing;35, second clamping structure;351, moving plate;352, support seat;353, sliding block;354, bottom plate;355, bottom block;356, mounting plate;357, cylinder two;358, adjusting arm two;359, pressing block two;36, adjusting structure;361, motor two;362, bidirectional screw;363, worm;37, linkage structure;371, rotating rod;372, worm wheel;373, bevel gear one;38, third clamping structure;381, bevel gear two;382, rotating cylinder;383, internal thread;384, screw;385, pressing plate;386, pressing groove;387, fixed lug;388, fixed cylinder. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is combined with the drawings and example, and the utility model is further explained in detail.

[0026] In one embodiment, as shown in Figures 1-7 A front subframe welding device includes a three-axis positioner 1, a clamp 3 and two welding robots 2. The three-axis positioner 1 includes a horizontal center shaft 11 and two rotating shafts 12 parallel to the center shaft 11, the two rotating shafts 12 are symmetrically arranged on both sides of the center shaft 11 and rotate around the shaft. The middle of the three-axis positioner 1 is provided with a shielding plate 13. The three-axis positioner 1 is provided with two welding robots 2 side by side on one side. The side of the three-axis positioner 1 close to the welding robot 2 is the welding side, and the other side is the standby side. The welding side and the standby side are both provided with a motor 14 and a clamp 3. The output end of the motor 14 is fixedly connected with the clamp 3. The clamp 3 rotates around the rotating shaft 12.

[0027] The clamp 3 includes a workbench 31. The workbench 31 is provided with a workboard 32 and two workboards 33 on the upper end. The two workboards 33 are symmetrically arranged on both sides of the workboard 32. The workboard 32 is symmetrically fixed with two beam seats 321 and two third clamping structures 38 on the upper end. Each third clamping structure 38 cooperates with a beam seat 321. The workboard 32 is provided with a first clamping structure 34 at the four corners of the upper end. The workboard 33 is provided with a second clamping structure 35 on the upper end.

[0028] It should be noted that the middle of the three-axis positioner 1 is provided with a shielding plate 13, which can be used to protect the operator and prevent the splashes in the welding process from splashing from the welding side to the standby side.

[0029] In an optional embodiment, the first clamping structure 34 includes a cylinder 341 arranged at the four corners of the upper end of the workboard 32 and a pressure bearing seat 345. The output end of the cylinder 341 is provided with an adjusting arm 342. The adjusting arm 342 is provided with a pressure block 343. A positioning pin 344 is arranged below the pressure block 343. The positioning pin 344 is arranged on the upper end of the pressure bearing seat 345.

[0030] It should be noted that the main function of the positioning pin 344 is to help the steering steel sleeve to be preliminarily positioned on the workboard 32, so as to ensure that the workpiece will not be deviated or misaligned during the clamping process. When it is necessary to clamp the workpiece, the cylinder 341 pushes the adjusting arm 342 and the pressure block 343 to move downward. The pressure block 343 will press the steering steel sleeve during the downward movement, and fix the steering steel sleeve between the pressure bearing seat 345 and the positioning pin 344. In this way, the first clamping structure 34 can realize stable clamping of the steering steel sleeve, and provide strong support for the subsequent welding operation.

[0031] In an optional embodiment, the second clamping structure 35 comprises a moving plate 351 arranged at the upper end of the second working plate 33, two support seats 352 are fixed at the upper end of the moving plate 351, an installation plate 356 is fixed on the moving plate 351, a second air cylinder 357 is installed at the upper end of the installation plate 356, an adjusting arm 358 is installed at the output end of the second air cylinder 357, the adjusting arm 358 is connected with a second pressing block 359, the second pressing block 359 is located above the two support seats 352, two sliding ports 331 are arranged on the second working plate 33, a sliding block 353 is slidably arranged in the sliding port 331, the moving plate 351 is fixedly connected with a bottom plate 354 through the sliding block 353, a bottom block 355 is fixed at the lower end of the bottom plate 354, the bottom block 355 is located in the workbench 31, and the bottom plate 354 is connected with the adjusting structure 36.

[0032] It should be noted that when the workpiece needs to be clamped, first, the two longitudinal beams are placed on the corresponding beam seats 321, and then the position of the moving plate 351 is adjusted through the adjusting structure 36, so that the two transverse beams are located on the support seats 352. Then, the second air cylinder 357 drives the adjusting arm 358 and the second pressing block 359 to move downward. The second pressing block 359 will press the two transverse beams tightly during the downward movement, and fix them between the support seats 352. In this way, the second clamping structure 35 can realize stable clamping of the two transverse beams, and provide strong support for subsequent welding operations.

[0033] In an optional embodiment, the adjusting structure 36 comprises a second motor 361 installed on one side of the workbench 31, the output end of the second motor 361 extends into the workbench 31 and is fixedly connected with a bidirectional screw 362, the two ends of the bidirectional screw 362 are threadedly connected with the bottom blocks 355, and a worm 363 is fixed in the middle of the bidirectional screw 362. The worm 363 is connected with the linkage structure 37.

[0034] It should be noted that the output shaft of the second motor 361 is connected with the bidirectional screw 362. The two ends of the bidirectional screw 362 are respectively connected with the bottom blocks 355 through threads, which means that when the bidirectional screw 362 rotates, the two bottom blocks 355 will move towards or away from each other according to the direction of rotation, thereby adjusting the position of the moving plate 351.

[0035] In an optional embodiment, the linkage structure 37 comprises a rotating rod 371 rotatably installed in the workbench 31, a worm wheel 372 and two bevel gears 373 are fixed on the rotating rod 371, the two bevel gears 373 are symmetrically arranged on the two sides of the rotating rod 371, the worm wheel 372 is meshed with the worm 363, and the bevel gears 373 are connected with the third clamping structure 38.

[0036] It should be noted that the worm 363 is rotated to drive the worm wheel 372 to rotate, so that the rotating rod 371 and the two bevel gears 373 are rotated, thereby driving the third clamping structure 38 to clamp the longitudinal beam.

[0037] In an optional embodiment, the third clamping structure 38 includes a bevel gear two 381, the bevel gear two 381 is engaged with the worm wheel 372, the upper end of the bevel gear two 381 is fixed with a rotating cylinder 382, the rotating cylinder 382 extends to the upper end of the working plate one 32, the upper end of the working plate one 32 is provided with a fixed cylinder 388, the inner wall of the fixed cylinder 388 is rotationally connected with the outer wall of the rotating cylinder 382, the inner wall of the rotating cylinder 382 is provided with an internal thread 383, the rotating cylinder 382 is threadedly connected with a screw rod 384 through the internal thread 383, the upper end of the screw rod 384 is fixed with a pressing plate 385, the other end of the pressing plate 385 is provided with a pressing groove 386, the both sides of the pressing plate 385 are symmetrically provided with fixed ears 387, the fixed ears 387 are slidably connected with the guide rods 322, and the guide rods 322 are fixed on the upper end of the working plate one 32.

[0038] It should be noted that the pressing groove 386 is matched with the longitudinal beam, and a rubber cushion is arranged in the pressing groove 386. The bevel gear two 381 is driven to rotate by the bevel gear one 373, so that the rotating cylinder 382 rotates in the fixed cylinder 388. Under the guidance and limitation of the guide rods 322, the screw rod 384 drives the pressing plate 385 to move in the vertical direction, so that the pressing groove 386 can be attached to the longitudinal beam, and the longitudinal beam is fixed between the pressing groove 386 of the pressing plate 385 and the corresponding beam seat 321.

[0039] The above embodiment discloses a front subframe welding device, wherein the workpiece is clamped by the clamp 3 on the preparation side of the three-axis positioner 1.

[0040] Firstly, the two longitudinal beams are placed on the corresponding beam seats 321, and then the bidirectional screw rod 362 is driven to rotate by the motor two 361, so that the position of the moving plate 351 is adjusted, and the two transverse beams are located on the support seats 352. Then, the adjusting arm two 358 and the pressing block two 359 are driven downward by the cylinder two 357. The pressing block two 359 is pressed tightly during the downward movement, and the two transverse beams are fixed between the support seats 352.

[0041] When the motor two 361 drives the worm 363 to rotate, the worm wheel 372 is rotated, and the rotating rod 371 and the two bevel gears one 373 are rotated.

[0042] The rotation of the bevel gear 373 drives the rotation of the bevel gear 381, and the rotating cylinder 382 rotates inside the fixed cylinder 388. Under the guidance and restriction of the guide rod 322, the screw rod 384 drives the pressing plate 385 to move in the vertical direction, so that the pressing groove 386 can be attached to the longitudinal beam, and the longitudinal beam is fixed between the pressing groove 386 of the pressing plate 385 and the corresponding beam seat 321.

[0043] Then the steering steel sleeve is sleeved on the positioning pin 344, the cylinder 341 drives the adjusting arm 342 and the pressing block 343 to move downward. The pressing block 343 is pressed tightly during the downward movement, and is fixed between the pressure bearing 345 and the positioning pin 344.

[0044] Then the three-axis displacement machine 1 rotates, the clamp 3 on the welding side is turned to the standby side, and the clamp 3 on the standby side is turned to the welding side. At this time, the front subframe on the welding side clamp 3 is welded by the welding robot, and the front subframe on the standby side clamp 3 is taken down for the next operation.

[0045] When welding the front subframe, the motor 14 adjusts the deflection angle of the welding side clamp 3, which is beneficial to the welding robot 2 for better welding.

[0046] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A front subframe welding apparatus characterized by comprising: The utility model provides a welding device, including three -axis positioner (1), clamp (3) and two welding robots (2), three -axis positioner (1) includes horizontal center axis (11) and two rotating shafts (12) parallel with center axis (11), two rotating shafts (12) are symmetrically arranged on both sides of center axis (11) and rotate around its axial direction, the middle part of three -axis positioner (1) is provided with baffle (13), and two welding robots (2) are provided side by side on one side of three -axis positioner (1), one side of three -axis positioner (1) is close to welding robot (2) and is welding side, the other side of three -axis positioner (1) is preparation side, motor one (14) and clamp (3) are installed on welding side and preparation side, the fixed connection of motor one (14) output and clamp (3), the axial rotation of clamp (3) is around the rotating shaft (12) that it is located, The utility model provides a welding device, including three -axis positioner (1), clamp (3) and two welding robots (2), three -axis positioner (1) includes horizontal center axis (11) and two rotating shafts (12) parallel with center axis (11), two rotating shafts (12) are symmetrically arranged on both sides of center axis (11) and rotate around its axial direction, the middle part of three -axis positioner (1) is provided with baffle (13), and two welding robots (2) are provided side by side on one side of three -axis positioner (1), one side of three -axis positioner (1) is close to welding robot (2) and is welding side, the other side of three -axis positioner (1) is preparation side, motor one (14) and clamp (3) are installed on welding side and preparation side, the fixed connection of motor one (14) output and clamp (3), the axial rotation of clamp (3) is around the rotating shaft (12) that it is located, 2. The front subframe welding device according to claim 1, wherein The first clamping structure (34) includes a cylinder one (341) and a pressure seat (345) arranged at the four corners of the upper end of the working plate one (32), the output end of the cylinder one (341) is provided with an adjusting arm one (342), the adjusting arm one (342) is provided with a pressure block one (343), a positioning pin (344) is arranged below the pressure block one (343), and the positioning pin (344) is arranged on the upper end of the pressure seat (345).

3. The front subframe welding apparatus of claim 2, wherein The second clamping structure (35) includes a moving plate (351) arranged on the upper end of the working plate two (33), the upper end of the moving plate (351) is fixedly provided with two support seats (352), the moving plate (351) is fixedly provided with a mounting plate (356), the upper end of the mounting plate (356) is provided with a cylinder two (357), the output end of the cylinder two (357) is provided with an adjusting arm two (358), the adjusting arm two (358) is connected with a pressure block two (359), the pressure block two (359) is located above the two support seats (352), two sliding grooves (331) are formed in the working plate two (33), a sliding block (353) is slidably arranged in the sliding groove (331), the moving plate (351) is fixedly connected with a bottom plate (354) through the sliding block (353), the bottom plate (354) is fixedly provided with a bottom block (355), the bottom block (355) is located in the working table (31), and the bottom plate (354) is connected with an adjusting structure (36).

4. The front subframe welding apparatus of claim 3, wherein The adjusting structure (36) includes the motor two (361) installed on one side of the workbench (31), the output end of the motor two (361) extends to the inside of the workbench (31) and is fixedly connected with the bidirectional screw rod (362), the both ends of the bidirectional screw rod (362) are threadedly connected with the bottom block (355), the middle of the bidirectional screw rod (362) is fixedly connected with the worm (363), and the worm (363) is connected with the linkage structure (37).

5. The front subframe welding apparatus of claim 4, wherein The linkage structure (37) includes the rotating rod (371) rotatably installed in the inside of the workbench (31), the rotating rod (371) is fixedly connected with the worm gear (372) and two bevel gears (373), the two bevel gears (373) are symmetrically arranged on the both sides of the rotating rod (371), the worm gear (372) is meshed with the worm (363), and the bevel gear (373) is connected with the third clamping structure (38).

6. The front subframe welding apparatus of claim 5, wherein The third clamping structure (38) includes the bevel gear (381), the bevel gear (381) is meshed with the worm gear (372), the upper end of the bevel gear (381) is fixedly connected with the rotating barrel (382), the rotating barrel (382) extends to the upper end of the work plate (32), the upper end of the work plate (32) is provided with the fixed barrel (388), the inner wall of the fixed barrel (388) is rotatably connected with the outer wall of the rotating barrel (382), the inner wall of the rotating barrel (382) is provided with the internal thread (383), the rotating barrel (382) is threadedly connected with the screw rod (384) through the internal thread (383), the upper end of the screw rod (384) is fixedly connected with the pressing plate (385), the other end of the pressing plate (385) is provided with the pressing groove (386), the both sides of the pressing plate (385) are symmetrically fixedly connected with the fixed lug (387), the fixed lug (387) is slidably connected with the guide rod (322), and the guide rod (322) is fixedly connected to the upper end of the work plate (32).

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