Automatic rotating welding fixing mechanism for automobile traction device

Abstract

The utility model provides an automatic rotary welding fixing mechanism of automobile traction device, and it realizes accurate positioning to the front convex positioning block of the welding, ensures the size stability of the mechanism after welding, and the deformation amount is controllable. It includes: clamp base plate, crossbeam support seat, it includes stand, horizontal support rod, the length direction of horizontal support rod each is provided with first positioning block subassembly, the front end of stand corresponds to the length direction middle part of horizontal support rod and is fixed with front -and -rear telescopic air cylinder, front -and -rear telescopic air cylinder is provided with front convex positioning rod, front convex positioning rod is located in the length direction middle part of crossbeam and is corresponded to the center positioning hole setting, crossbeam pressure mechanism, it includes rotary pressure cylinder, pressure crossbeam, the upper output end of rotary pressure cylinder is connected pressure crossbeam through the connecting frame, and front convex positioning block turnover positioning mechanism, it includes lower fixed subassembly, turnover air cylinder, turnover arm, front convex positioning block clamping positioning subassembly.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts welding, specifically to an automatic rotating welding and fixing mechanism for automotive traction devices. Background Technology

[0002] The vehicle towing device includes a crossbeam, a trailer hitch, and a front convex positioning block. A protruding welding plate is pre-set at the center of the crossbeam along its length. The protruding welding plate is used to weld the corresponding positions on both sides of the trailer hitch. As for the welding of the front convex positioning block, since it does not have a pre-installable positioning mechanism, it is currently fixed by magnetic blocks or manual clamps, requiring manual welding of the parts.

[0003] Furthermore, existing welding and fixing mechanisms for automobile towing devices lack automation and have a low safety factor. Additionally, using magnetic blocks, manual clamps, or handheld parts for welding and positioning makes it impossible to quickly locate the precise position of the protruding positioning block. Moreover, each welding operation requires numerous magnetic blocks and manual clamps of various sizes, necessitating handheld positioning. Inaccurate positioning of the welded protruding positioning block leads to unstable assembly dimensions, uncontrollable deformation, and a higher risk of safety accidents. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides an automatic rotating welding and fixing mechanism for automobile traction devices. This mechanism precisely positions the protruding positioning block to be welded, ensuring dimensional stability and controllable deformation of the mechanism after welding.

[0005] An automatic rotating welding and fixing mechanism for automobile traction devices, characterized in that it comprises: Fixture base plate; A crossbeam support includes a column and a transverse support rod. Each transverse support rod is provided with a first positioning block assembly along its length. A front and rear telescopic cylinder is fixed at the front end of the column corresponding to the middle of the transverse support rod along its length. The front and rear telescopic cylinders are provided with a forward-protruding positioning rod, which is positioned to correspond to the central positioning hole located at the middle of the crossbeam along its length. A crossbeam pressing mechanism includes a rotary pressing cylinder and a pressing crossbar, wherein the upper output end of the rotary pressing cylinder is connected to the pressing crossbar through a connecting frame; And a forward positioning block flipping and positioning mechanism, which includes a lower fixing component, a rotary cylinder, a flipping arm, and a forward positioning block clamping and positioning component; A column is fixedly installed at the rear end of the center position of the clamp base plate along its length direction. A transverse support rod is provided on the column. A lower fixing assembly is fixedly installed on the mounting side of the front protruding positioning block along the length direction of the clamp base plate. A rotary cylinder is fixedly installed on the lower fixing assembly. A flipping arm is connected to the rotation output end of the rotary cylinder. A front protruding positioning block clamping and positioning assembly is fixedly installed on the flipping arm.

[0006] Its further features are: A cylinder connecting frame is fixedly mounted at the rear end of the column, and the cylinder seat of the rotary pressing cylinder is fixedly mounted at the end of the cylinder connecting frame. The upper rotating shaft of the rotary pressing cylinder is fixedly connected to the rear end of the connecting frame, and the front end of the connecting frame is fixedly connected to the middle region of the pressing crossbar in the length direction. The forward-protruding positioning block clamping and positioning assembly includes a flipping arm connecting seat, a positioning cylinder, a first fixed pressing block, and a second movable pressing block. The flipping arm connecting seat includes a lower protruding fixed end, a forward-protruding positioning block positioning cavity, and a positioning cylinder mounting body. The lower protruding fixed end is fixed to the rotating end of the flipping arm. The cylinder seat of the positioning cylinder is fixed to the positioning cylinder mounting body. The piston end of the positioning cylinder passes through the positioning cylinder mounting body and is fixed to the second movable pressing block. The first fixed pressing block is fixed to the corresponding outer vertical plate of the forward-protruding positioning block positioning cavity. The first fixed pressing block and the second movable pressing block are used for positioning and clamping the forward-protruding positioning block. The second movable pressing block is also equipped with a product sensor on its pressing surface. The first fixed pressing block and the second movable pressing block are also provided with an insertion mechanism for aligning with the positioning hole on the front protruding positioning block, which enables the rapid sensing of the presence of the front protruding positioning block and the reliable clamping action. The lower fixing component includes a base plate connecting block and a rotary cylinder connecting block. The base plate connecting block is fixed to the upper surface of the fixture base plate. One end of the rotary cylinder connecting block is fixed to the corresponding vertical surface of the base plate connecting block, and the other end of the rotary cylinder connecting block protrudes forward to fix the cylinder seat of the rotary cylinder. A positioning block is also provided at the front end of the column corresponding to the position between the two sets of protruding welded plates. The positioning block is used to position the two sets of protruding welded plates, thereby ensuring that the positioning of the entire beam is accurate and reliable.

[0007] After adopting the above technical solution, the first step is to connect the power and air supply to the entire clamping device. The corresponding cylinders are reset under control and put into a ready-to-work state. The beams to be welded (with pre-welded protruding welding plates) are placed on the transverse support rods, so that the two ends of the beams are supported by the corresponding first positioning block components. Then, the front protruding positioning rod of the front and rear telescopic cylinders is inserted into the center positioning hole of the beam, so that the beam is reliably positioned. The rotary clamping cylinder drives the pressing rod to firmly press the beam. After that, the front protruding positioning block flipping positioning mechanism flips counterclockwise after the front protruding positioning block is reliably positioned, so that the welding position of the front protruding positioning block is reliably attached to the corresponding position of the beam. The external welding gun welds the front protruding positioning block to the beam. Then, the front protruding positioning block clamping positioning component releases the front protruding positioning block, the rotary cylinder resets, the rotary clamping cylinder resets, and the front and rear telescopic cylinders reset. The worker can take out the welded product and then repeat the above actions. This process is repeated to automate production. It achieves precise positioning of the front protruding positioning block to be welded, ensuring the dimensional stability of the mechanism after welding and the controllable amount of deformation. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of the present invention in the welded state (including a crossbeam and a forward-protruding positioning block); Figure 2 This is a three-dimensional structural diagram of the present invention in its non-welded state (including a crossbeam and a forward-protruding positioning block, with the rotary clamping cylinder removed). Figure 3 This is a schematic diagram of the front protruding positioning block flipping positioning mechanism and the front protruding positioning block assembly of this utility model; The names corresponding to the serial numbers in the diagram are as follows: The fixture includes a base plate 10, a crossbeam support seat 20, a column 21, a transverse support rod 22, a first positioning block assembly 23, a front and rear telescopic cylinder 24, a front protruding positioning rod 25, a cylinder connecting frame 26, a crossbeam pressing mechanism 30, a rotary pressing cylinder 31, an upper rotating shaft 311, a pressing crossbar 32, a connecting frame 33, a front protruding positioning block flipping positioning mechanism 40, a lower fixed assembly 50, a base plate connecting block 51, a rotary cylinder connecting block 52, a rotary cylinder 60, a flipping arm 70, a front protruding positioning block clamping and positioning assembly 80, a positioning cylinder 81, a first fixed pressing block 82, a second movable pressing block 83, a flipping arm connecting seat 90, a lower protruding fixed end 91, a front protruding positioning block positioning cavity 92, a positioning cylinder mounting seat 93, a crossbeam 100, a front protruding positioning block 110, and a protruding welding plate 120. Product components: 1. Sensor; 2. Insertion mechanism; 3. Positioning block. Detailed Implementation

[0009] Automatic rotating welding and fixing mechanism for automobile traction devices, see Figures 1-3It includes a clamp base plate 10, a crossbeam support seat 20, a crossbeam pressing mechanism 30, and a front protruding positioning block flipping positioning mechanism 40. The crossbeam support 20 includes a column 21 and a transverse support rod 22. Each transverse support rod 22 is provided with a first positioning block assembly 23 along its length. The front end of the column 21 is fixed with a front and rear telescopic cylinder 24 corresponding to the middle of the transverse support rod 22 along its length. The front and rear telescopic cylinder 24 is provided with a front protruding positioning rod 25. The front protruding positioning rod 25 is positioned to correspond to the central positioning hole located in the middle of the length of the crossbeam 100. The crossbeam pressing mechanism 30 includes a rotary pressing cylinder 31 and a pressing crossbar 32. The upper output end of the rotary pressing cylinder 31 is connected to the pressing crossbar 32 through a connecting frame 33. The forward positioning block flipping and positioning mechanism 40 includes a lower fixing component 50, a rotary cylinder 60, a flipping arm 70, and a forward positioning block clamping and positioning component 80. A column 21 is fixedly installed at the rear end of the center position of the fixture base plate 10 along its length direction. A transverse support rod 22 is installed on the column 21. A lower fixing component 50 is fixedly installed on the mounting side of the front protruding positioning block 110 along the length direction of the fixture base plate 10. A rotary cylinder 60 is fixedly installed on the lower fixing component 50. A flipping arm 70 is connected to the rotation output end of the rotary cylinder 60. A front protruding positioning block clamping and positioning component 80 is fixedly installed on the flipping arm 70.

[0010] In a specific embodiment, a cylinder connecting frame 26 is fixedly mounted at the rear end of the column 21, and a cylinder seat of a rotary pressing cylinder 31 is fixedly mounted at the end of the cylinder connecting frame 26. The upper rotating shaft 311 of the rotary pressing cylinder 31 is fixedly connected to the rear end of the connecting frame 33, and the front end of the connecting frame 33 is fixedly connected to the middle region of the pressing crossbar 32 in the length direction. The forward-protruding positioning block clamping and positioning assembly 80 includes a flip arm connecting seat 90, a positioning cylinder 81, a first fixed pressing block 82, and a second movable pressing block 83. The flip arm connecting seat 90 includes a lower protruding fixed end 91, a forward-protruding positioning block positioning cavity 92, and a positioning cylinder mounting seat 93. The lower protruding fixed end 91 is fixed to the rotating end of the flip arm 70. The cylinder seat of the positioning cylinder 81 is fixed to the positioning cylinder mounting seat 93. The piston end of the positioning cylinder 81 passes through the positioning cylinder mounting seat 93 and is fixed to the second movable pressing block 83. The first fixed pressing block 82 is fixed to the corresponding outer vertical plate of the forward-protruding positioning block positioning cavity 92. The first fixed pressing block 82 and the second movable pressing block 83 are used for positioning and clamping the forward-protruding positioning block 110. The second movable pressing block 83 is also equipped with a product sensor 1 embedded on its pressing surface. The first fixed pressing block 82 and the second movable pressing block 83 are also provided with an insertion mechanism 2 for aligning with the positioning hole on the front protruding positioning block 110, which enables the rapid sensing of the presence of the front protruding positioning block 110 and the reliable clamping action. The lower fixing component 50 includes a base plate connecting block 51 and a rotary cylinder connecting block 52. The base plate connecting block 51 is fixed to the upper surface of the clamp base plate 10. One end of the rotary cylinder connecting block 52 is fixed to the corresponding vertical surface of the base plate connecting block 51. The other end of the rotary cylinder connecting block 52 protrudes forward to fix the cylinder seat of the rotary cylinder 60. A positioning block 3 is also provided at the front end of the column 21 corresponding to the position between the two sets of protruding welded plates 120. The positioning block 3 is used to position the two sets of protruding welded plates 120, thereby ensuring that the positioning of the entire beam 100 is accurate and reliable.

[0011] Its working principle is as follows: First, the entire clamping device needs to be connected to the power and air supply. The corresponding cylinders are reset under control and are in a ready-to-work state. The beams to be welded (with pre-welded protruding welding plates) are placed on the transverse support rods, so that the two ends of the beams are supported by the corresponding first positioning block assemblies. Then, the front protruding positioning rod of the front and rear telescopic cylinders is inserted into the center positioning hole of the beam, so that the beam is reliably positioned. The rotating clamping cylinder drives the pressing rod to firmly press the beam. Then, the product sensor senses that the front protruding positioning block exists in the first fixed pressure block and the second... Between the two moving pressure blocks, the positioning cylinder drives the second moving pressure block to press the front protruding positioning block. Then, the rotary cylinder rotates counterclockwise, so that the welding position of the front protruding positioning block is reliably attached to the corresponding position of the crossbeam. The external welding gun welds the front protruding positioning block to the crossbeam. After that, the front protruding positioning block clamping positioning component releases the front protruding positioning block, the positioning cylinder resets and releases the front protruding positioning block, the rotary cylinder resets, the rotary pressing cylinder resets, and the front and rear telescopic cylinder resets. The worker can take out the welded product and then repeat the above actions. This process is repeated to carry out automated production.

[0012] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0013] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic rotation welding fixing mechanism for an automobile traction device, characterized in that, It includes: Fixture base plate; A crossbeam support includes a column and a transverse support rod. Each transverse support rod is provided with a first positioning block assembly along its length. A front and rear telescopic cylinder is fixed at the front end of the column corresponding to the middle of the transverse support rod along its length. The front and rear telescopic cylinders are provided with a forward-protruding positioning rod, which is positioned to correspond to the central positioning hole located at the middle of the crossbeam along its length. A crossbeam pressing mechanism includes a rotary pressing cylinder and a pressing crossbar, wherein the upper output end of the rotary pressing cylinder is connected to the pressing crossbar through a connecting frame; And a forward positioning block flipping and positioning mechanism, which includes a lower fixing component, a rotary cylinder, a flipping arm, and a forward positioning block clamping and positioning component; A column is fixedly installed at the rear end of the center position of the clamp base plate along its length direction. A transverse support rod is provided on the column. A lower fixing assembly is fixedly installed on the mounting side of the front protruding positioning block along the length direction of the clamp base plate. A rotary cylinder is fixedly installed on the lower fixing assembly. A flipping arm is connected to the rotation output end of the rotary cylinder. A front protruding positioning block clamping and positioning assembly is fixedly installed on the flipping arm.

2. The automatic rotation welding fixing mechanism of the automobile traction device according to claim 1, characterized in that: A cylinder connecting frame is fixedly mounted at the rear end of the column, and the cylinder seat of the rotary pressing cylinder is fixedly mounted at the end of the cylinder connecting frame. The upper rotating shaft of the rotary pressing cylinder is fixedly connected to the rear end of the connecting frame, and the front end of the connecting frame is fixedly connected to the middle region of the pressing crossbar in the length direction.

3. The automatic rotating welding and fixing mechanism for automobile traction devices according to claim 1, characterized in that: The forward-protruding positioning block clamping and positioning assembly includes a flip arm connecting seat, a positioning cylinder, a first fixed pressing block, and a second movable pressing block. The flip arm connecting seat includes a lower protruding fixed end, a forward-protruding positioning block positioning cavity, and a positioning cylinder mounting body. The lower protruding fixed end is fixed to the rotating end of the flip arm. The cylinder seat of the positioning cylinder is fixed to the positioning cylinder mounting body. The piston end of the positioning cylinder passes through the positioning cylinder mounting body and is fixed to the second movable pressing block. The first fixed pressing block is fixed to the corresponding outer vertical plate of the forward-protruding positioning block positioning cavity. The first fixed pressing block and the second movable pressing block are used for positioning and clamping the forward-protruding positioning block.

4. The automatic rotating welding and fixing mechanism for automobile traction devices according to claim 3, characterized in that: The second movable pressing block is also equipped with a product sensor on its pressing surface, and the first fixed pressing block and the second movable pressing block are also provided with an insertion mechanism for aligning with the positioning hole on the front protruding positioning block.

5. The automatic rotation welding fixing mechanism of the automotive towing device according to claim 1, characterized in that: The lower fixing component includes a base plate connecting block and a rotary cylinder connecting block. The base plate connecting block is fixed to the upper surface of the fixture base plate. One end of the rotary cylinder connecting block is fixed to the corresponding vertical surface of the base plate connecting block, and the other end of the rotary cylinder connecting block protrudes forward to fix the cylinder seat of the rotary cylinder.

6. The automatic rotating welding and fixing mechanism for automobile traction devices according to claim 1, characterized in that: The front end of the column is also provided with a positioning block corresponding to the position between the two sets of protruding welding plates. The positioning block is used to position the two sets of protruding welding plates.

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