Multi-degree-of-freedom welding positioner for special-shaped beam
By designing a multi-degree of freedom welding and displacement machine for special-shaped beams, the multi-degree of freedom displacement of the workpiece is achieved using rectangular grooves and variable speed turntables, which solves the problem that the welding seams cannot be located on the horizontal surface in the prior art, and improves the welding accuracy and quality , reducing safety risks.
Patent Information
- Application Number
- CN202421195064.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The existing traction seat welding transformer cannot meet the requirements. All welded seams are located on the horizontal surface, resulting in some welds located on the vertical side, causing uncontrollable welding quality and increasing the risk of uncontrollable strength, which poses potential safety hazards.
Design a multi-degree of freedom welding and displacement machine for special-shaped beams. By improving the traditional linear cantilever beam into a special-shaped cantilever beam with rectangular grooves on the upper side of the middle section, and setting a speed dial on the lower side of the clamp, the workpiece is perpendicular to the vertical direction of the workpiece. The axis of the special-shaped cantilever beam rotates, and the original cantilever beam rotates about the horizontal axis to ensure that the weld is in a horizontal state on the upper surface in real time.
Through the combined design of a special-shaped cantilever beam and a variable speed turntable, the workpiece is transformed in multiple degrees of freedom during the welding process, ensuring welding accuracy and quality, and reducing safety hazards during the welding process.
Smart Images
Figure CN222429816U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of welding technology, in particular to a multi-degree-of-freedom welding positioner for special-shaped beams. Background Art
[0002] The towing wheel is a towing part used by a cargo tractor truck to tow a semi-trailer. During the production process of the towing wheel, the frame body and the shell of the towing wheel need to be welded at multiple points and angles. The number of welds is large and complex, and the workpiece needs to be constantly changed in angle during the welding process. Therefore, a positioner is needed to assist in welding, thereby improving the process accuracy of the welding process. However, the existing positioners for welding towing wheels mostly use linear cantilever beams, which cannot meet the requirement that all welds of the towing wheel are located on the horizontal upper surface. Some welds are still located on the vertical side, and the weld gaps on the vertical side are large and do not fit together, resulting in uncontrollable welding quality in the subsequent fitting area of the product, thereby increasing the risk of uncontrollable strength and bringing potential safety hazards to the freight market. Therefore, there is an urgent need for a multi-degree-of-freedom welding positioner with a reasonable design and simple structure, in which all welds in the welding process of the towing wheel are located on the horizontal upper surface to ensure welding process accuracy, so as to solve the problems that have been plaguing technicians in this field in the prior art. Utility Model Content
[0003] The utility model aims to provide a multi-degree-of-freedom welding positioner for special-shaped beams, which improves the traditional straight cantilever beam into a special-shaped cantilever beam with a rectangular groove on the upper side of the middle section, and arranges a speed-changing turntable on the lower side of a clamp body, thereby increasing the clamp body to drive the workpiece to rotate around an axis perpendicular to the special-shaped cantilever beam, and cooperates with the original cantilever beam to rotate around a horizontal axis, so that the weld seam of the workpiece is in a horizontal state on the upper surface in real time, thereby ensuring the welding accuracy and quality.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A multi-degree-of-freedom welding positioner for a special-shaped beam, characterized in that it comprises a frame and a special-shaped cantilever beam, one end of the special-shaped cantilever beam is installed on the upper end of the frame through a single-stage reduction mechanism, the single-stage reduction mechanism drives the special-shaped cantilever beam to rotate around a horizontal axis, a rectangular groove is provided on the upper side of the middle section of the special-shaped cantilever beam, the rectangular groove is used to avoid a rotating clamp body, a speed change turntable is provided on the lower side of the cantilever end of the special-shaped cantilever beam, the upper end of the speed change turntable is connected to the clamp body, and the speed change turntable drives the clamp body to rotate around an axis perpendicular to the special-shaped cantilever beam.
[0006] Further preferably, the special-shaped cantilever beam adopts a hollow box beam structure, a circular hole for installing weight reduction is provided at the place where the special-shaped cantilever beam cooperates with the single-stage reduction mechanism, a reinforcing rib structure is provided on both sides of the special-shaped cantilever beam, and a square hole for installing weight reduction is provided at the place where the cantilever end of the special-shaped cantilever beam cooperates with the speed change turntable.
[0007] Further preferably, the special-shaped cantilever beam adopts a hollow box beam structure, a circular hole for installing weight reduction is provided at the place where the special-shaped cantilever beam cooperates with the single-stage reduction mechanism, a reinforcing rib structure is provided on both sides of the special-shaped cantilever beam, and a square hole for installing weight reduction is provided at the place where the cantilever end of the special-shaped cantilever beam cooperates with the speed change turntable.
[0008] Further preferably, the clamp body consists of a clamp seat and four clamping mechanisms with the same structure. The lower end of the clamp seat is fixedly connected to the upper side of the speed change turntable. The upper side of the clamp seat is provided with positioning pins and support blocks. The front and rear side surfaces of the clamp seat are symmetrically installed with four clamping mechanisms with the same structure.
[0009] Further preferably, the clamping mechanism consists of a cylinder, a cylinder seat, an intermediate rotating shaft, a clamping piece, and a clamping seat. The clamping seat and the cylinder seat are fixed on the side of the fixture seat along the upper and lower coaxial lines. The cylinder seat is hingedly connected to both sides of the cylinder, the cylinder telescopic rod is hingedly connected to the lower end of the intermediate rotating shaft, the upper end of the intermediate rotating shaft is hingedly connected to the outer end of the clamping piece, the middle part of the clamping piece is hingedly connected to the clamping seat, and the inner end of the clamping piece is used to clamp the workpiece.
[0010] Further preferably, a first motor is provided at the power input end of the single-stage reduction mechanism.
[0011] Further preferably, a second motor is provided at the lower power input end of the speed change turntable.
[0012] The beneficial effects of the utility model are:
[0013] A first motor is arranged at the power input end of the single-stage reduction mechanism, and one end of the special-shaped cantilever beam is installed on the upper end of the frame through the single-stage reduction mechanism, and the single-stage reduction mechanism drives the special-shaped cantilever beam to rotate around the horizontal axis, that is, the special-shaped cantilever beam drives the workpiece to rotate around the horizontal axis through the first motor and the single-stage reduction mechanism; a speed change turntable is arranged at the lower side of the cantilever end of the special-shaped cantilever beam, and the upper end of the speed change turntable is connected to the clamp body, and a second motor is arranged at the power input end of the lower side of the speed change turntable, that is, the clamp body drives the workpiece to rotate around the axis perpendicular to the special-shaped cantilever beam through the second motor and the speed change turntable; a rectangular groove is arranged on the upper side of the middle section of the special-shaped cantilever beam, and the rectangular groove is used to avoid the rotating clamp body;
[0014] The special-shaped cantilever beam adopts a hollow box beam structure, the purpose of which is to reduce the weight of the whole machine and facilitate the installation of the conveyor; the special-shaped cantilever beam is provided with a weight-reducing circular hole at the cooperation place with the single-stage reduction mechanism, which is convenient for assembling one end of the special-shaped cantilever beam with the single-stage reduction mechanism and reducing the weight of the special-shaped cantilever beam; the special-shaped cantilever beam is provided with a reinforcing rib structure at the bending place, thereby strengthening the structure of the special-shaped cantilever beam; the cantilever end of the special-shaped cantilever beam is provided with a weight-reducing square hole at the cooperation place with the speed change turntable for arranging and assembling the speed change turntable and the second motor.
[0015] The frame adopts an L-shaped layout, the special-shaped cantilever beam is installed on the vertical section of the L-shaped frame through a single-stage reduction mechanism, and the cantilever end of the special-shaped cantilever beam and the clamp body are located on the upper side of the horizontal section of the L-shaped frame. The purpose is to use the weight of the special-shaped cantilever beam and the clamp body to press the frame to ensure the stability of the whole machine.
[0016] The clamp body consists of a clamp seat and four clamping mechanisms with the same structure, the lower end of the clamp seat is fixedly connected to the upper side of the speed change turntable, the upper side of the clamp seat is provided with a positioning pin and a support block, and the front and rear side surfaces of the clamp seat are symmetrically installed with four clamping mechanisms with the same structure in pairs; the clamping mechanism consists of a cylinder, a cylinder seat, an intermediate rotating shaft, a clamping piece, and a clamping seat, the clamping seat and the cylinder seat are fixed to the side of the clamp seat along the upper and lower coaxial lines, the cylinder seat is hingedly connected to both sides of the cylinder, the cylinder telescopic rod is hingedly connected to the lower end of the intermediate rotating shaft, the upper end of the intermediate rotating shaft is hingedly connected to the outer end of the clamping piece, the middle part of the clamping piece is hingedly connected to the clamping seat, and the inner end of the clamping piece is used to clamp the workpiece.
[0017] When the special-shaped beam multi-degree-of-freedom welding positioner is used, the workpiece truck traction seat welding part is positioned by the positioning pins provided on the upper side of the clamp seat, the telescopic rod of the cylinder is extended, and the truck traction seat welding part is fixed by the intermediate rotating shaft and the clamping part, so that the clamping mechanisms symmetrically installed on both sides of the clamp seat are fixed in pairs. The welding personnel or the welding robot stands at a certain position, and the first motor drives the special-shaped cantilever beam, the clamping body, and the workpiece to rotate the horizontal axis, and the second motor drives the speed change turntable, the clamping body, and the workpiece to rotate around the axis perpendicular to the special-shaped cantilever beam, so as to ensure that the two parts corresponding to each weld of the workpiece are in a horizontal state during welding, thereby ensuring the welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the shaft side structure of the entire machine of the utility model.
[0019] Figure 2 This is a schematic diagram of the shaft side structure of the utility model in use state.
[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0021] 1. The first motor; 2. The frame; 3. The single-stage reduction mechanism; 4. The special-shaped cantilever beam; 5. The clamp seat; 6. The support block; 7. The positioning pin; 8. The clamping mechanism; 9. The second motor; 10. The speed change turntable; 11. The reinforcing ribs; 12. The truck traction seat; 13. The cylinder; 14. The cylinder seat; 15. The intermediate shaft; 16. The clamping piece; 17. The clamping seat. DETAILED DESCRIPTION
[0022] The utility model is further described below in conjunction with the accompanying drawings:
[0023] like Figure 1 and Figure 2 As shown, it includes a frame 2, a special-shaped cantilever beam 4, a single-stage reduction mechanism 3, a first motor 1, a second motor 9, a speed change turntable 10, a truck traction seat 12, and a clamp body. The special-shaped cantilever beam 4 adopts a hollow box beam structure. The special-shaped cantilever beam 4 and the single-stage reduction mechanism 3 are matched with a circular hole for installing weight reduction. The inside of the special-shaped cantilever beam 4 is provided with a reinforcing rib 11. The cantilever end of the special-shaped cantilever beam 4 and the speed change turntable 9 are matched with a square hole for installing weight reduction. The frame 2 adopts an L-shaped arrangement. The special-shaped cantilever beam 4 is connected to the single-stage reduction mechanism 3. The single-stage reduction mechanism 3 is installed on the vertical section of the L-shaped frame 2, and the cantilever end of the special-shaped cantilever beam 4 and the clamp body are located on the upper side of the horizontal section of the L-shaped frame 2; one end of the special-shaped cantilever beam 4 is installed on the upper end of the frame 1 through the single-stage reduction mechanism 3, and the first motor 1 is arranged at the power input end of the single-stage reduction mechanism 3; the single-stage reduction mechanism 3 drives the special-shaped cantilever beam 4 to rotate around the horizontal axis, and a rectangular groove is arranged on the upper side of the middle section of the special-shaped cantilever beam 4, and the rectangular groove is used to avoid the rotating clamp body, and the clamp body is provided by the clamp seat 5. Four clamping mechanisms 8 with the same structure are symmetrically installed on both sides of the clamp seat 5. The clamping mechanism 8 is composed of a cylinder 13, a cylinder seat 14, an intermediate shaft 15, a clamping piece 16, and a clamping seat 17. The clamping seat 17 and the cylinder seat 14 are fixed to the side of the clamp seat 17 along the upper and lower coaxial lines. The cylinder seat 14 is hingedly connected to both sides of the cylinder 13. The telescopic rod of the cylinder 13 is hingedly connected to the lower end of the intermediate shaft 15. The upper end of the intermediate shaft 15 is hingedly connected to the clamping piece 16. The outer end is hingedly connected, the middle part of the clamping member 16 is hingedly connected to the clamping seat 17, and the inner end of the clamping member 17 is used to clamp the truck traction seat 12; the upper side of the clamp seat 5 is provided with a positioning pin 7 and a support block 6, and the lower side of the cantilever end of the special-shaped cantilever beam 4 is provided with a speed change turntable 10, the upper end of the speed change turntable 10 is connected to the clamp seat 5, and the lower power input end of the speed change turntable 10 is provided with a second motor 9, and the speed change turntable 10 drives the clamp body and the truck traction seat 12 to rotate around an axis perpendicular to the special-shaped cantilever beam 4.
[0024] This embodiment is only an illustration of the concept and implementation of the utility model, and is not intended to be a limitation thereof. Under the concept of the utility model, the technical solution is not substantially changed.
Claims
1. A multi-degree-of-freedom welding positioner for special-shaped beams, characterized by: It includes a frame and a special-shaped cantilever beam, one end of the special-shaped cantilever beam is installed on the upper end of the frame through a single-stage reduction mechanism, the single-stage reduction mechanism drives the special-shaped cantilever beam to rotate around a horizontal axis, a rectangular groove is provided on the upper side of the middle section of the special-shaped cantilever beam, the rectangular groove is used to avoid the rotating clamp body, a speed change turntable is provided on the lower side of the cantilever end of the special-shaped cantilever beam, the upper end of the speed change turntable is connected to the clamp body, and the speed change turntable drives the clamp body to rotate around an axis perpendicular to the special-shaped cantilever beam.
2. The multi-degree-of-freedom welding positioner for special-shaped beams according to claim 1, characterized in that: The special-shaped cantilever beam adopts a hollow box beam structure. A circular hole for installing weight reduction is provided at the place where the special-shaped cantilever beam cooperates with the single-stage reduction mechanism. Reinforcing rib structures are provided on both sides of the special-shaped cantilever beam. A square hole for installing weight reduction is provided at the place where the cantilever end of the special-shaped cantilever beam cooperates with the speed change turntable.
3. The multi-degree-of-freedom welding positioner for special-shaped beams according to claim 1, characterized in that: The frame is arranged in an L shape, the special-shaped cantilever beam is installed on the vertical section of the L-shaped frame through a single-stage reduction mechanism, and the cantilever end and the clamping body of the special-shaped cantilever beam are located on the upper side of the horizontal section of the L-shaped frame.
4. The multi-degree-of-freedom welding positioner for special-shaped beams according to claim 1, characterized in that: The clamp body consists of a clamp seat and four clamping mechanisms with the same structure. The lower end of the clamp seat is fixedly connected to the upper side of the speed change turntable. The upper side of the clamp seat is provided with a positioning pin and a support block. The front and rear side surfaces of the clamp seat are symmetrically installed with four clamping mechanisms with the same structure.
5. The multi-degree-of-freedom welding positioner for special-shaped beams according to claim 4, characterized in that: The clamping mechanism consists of a cylinder, a cylinder seat, an intermediate rotating shaft, a clamping piece, and a clamping seat. The clamping seat and the cylinder seat are fixed on the side of the fixture seat along the upper and lower coaxial lines. The cylinder seat is hingedly connected to both sides of the cylinder, the cylinder telescopic rod is hingedly connected to the lower end of the intermediate rotating shaft, the upper end of the intermediate rotating shaft is hingedly connected to the outer end of the clamping piece, the middle part of the clamping piece is hingedly connected to the clamping seat, and the inner end of the clamping piece is used to clamp the workpiece.
6. The multi-degree-of-freedom welding positioner for special-shaped beams according to claim 1, characterized in that: A first motor is arranged at the power input end of the single-stage reduction mechanism.
7. The multi-degree-of-freedom welding positioner for special-shaped beams according to claim 1, characterized in that: A second motor is arranged at the lower power input end of the speed change turntable.