Workpiece positioning mechanism for automobile welding tool
By designing a workpiece positioning mechanism for automotive welding tooling, the workpiece is accurately positioned and angled adjustment using servo motors and mechanical structures, the problem of poor welding caused by the self-rotation of parts during automobile welding is solved, and the welding accuracy and efficiency are improved.
Patent Information
- Application Number
- CN202421320912.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-06-11
AI Technical Summary
During automobile welding, automobile parts may rotate by themselves due to gravity, resulting in poor welding angle and position, making it difficult to achieve precise positioning.
A workpiece positioning mechanism for automobile welding tooling is designed. The central rotary rod is driven by a servo motor, and the mechanical structure of the positioning block and arc-shaped pressing rod is combined to achieve accurate positioning and angle adjustment of the workpiece.
The stable positioning and angle adjustment of the workpiece is achieved, ensuring the optimal angle and position during the welding process, and improving welding accuracy and efficiency.
Smart Images
Figure CN222806412U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile welding positioning, in particular to a workpiece positioning mechanism for automobile welding tooling. Background Art
[0002] Welding production in automobile manufacturing has the characteristics of large batches, fast production speed, and high requirements for assembly welding precision of welded parts. It is mostly produced in an assembly line. Different parts require different welding methods. When using tooling to weld automobile welding parts, the automobile welding parts must be placed on the tooling, and the parts must be positioned when installing the welding parts.
[0003] When welding automobile parts, in order to ensure the best welding angle and position, the automobile parts are generally fixed and then adjusted with some angle adjustment devices. The most common method is through rotation. However, due to gravity, the fixed automobile parts may rotate by themselves, so a workpiece positioning mechanism is required.
[0004] Therefore, the utility model provides a workpiece positioning mechanism for automobile welding tooling to solve the above problems. Utility Model Content
[0005] In view of the deficiencies in the prior art, the utility model provides a workpiece positioning mechanism for automobile welding tooling, which solves the above-mentioned problems. By starting the servo motor, the center rotating rod can be driven to rotate, and then the entire workpiece fixing assembly can be rotated to the adjusted position angle. By the positioning block being stuck in the limit groove, the rotation of the center rotating rod and the docking shaft can be prevented to achieve the positioning effect, and the center rotating rod and the docking shaft can be fixed in one position without moving. If you want to continue to adjust the position angle, you can press the arc pressure rod, and the arc surface of the arc pressure rod will slide with one end of the transmission block and press it down to lift the positioning block, so that the restriction on the center rotating rod and the docking shaft can be released, and the servo can be started again. The motor can be used to adjust the position. When the position is satisfactory, the arc pressure rod can be released. Under the elastic force of the spring, the arc pressure rod can be reset through the transmission block. The positioning block can be re-stuck in the limit groove to fix it again. By rotating the two horizontal turntable handles at the same time, the two horizontal axis bidirectional screw rods can be driven to rotate, so that the two nut blocks can move away from or closer to each other. By rotating the two longitudinal turntable handles at the same time, the two longitudinal axis bidirectional screw rods can be driven to rotate, and the two corner limit blocks can be controlled to move closer to or away from each other. The combination of the two can limit the four corners of the automotive component plate through the corner limit blocks to fix it for subsequent angle adjustment and welding.
[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a workpiece positioning mechanism for automobile welding tooling, comprising an operating table, a rotating positioning assembly is arranged on the top of the operating table; a workpiece fixing assembly is arranged on one side of the rotating positioning assembly; the rotating positioning assembly comprises a mounting rod, the mounting rod is fixedly connected to the top of the operating table, an assembly block is fixedly connected to the top of the mounting rod, a central rotating rod is rotatably connected to the inside of the assembly block, one end of the central rotating rod is fixedly connected to a docking shaft, a limiting groove is provided on the outer wall of the docking shaft, a first protruding block is fixedly connected to the top of the assembly block, an arc pressure rod is rotatably connected between the two first protruding blocks, a positioning block is fixedly connected to the bottom of one end of the arc pressure rod, the positioning block can be stuck in the limiting groove, a spring is fixedly connected to the top groove of the assembly block, one end of the spring is fixedly connected to a transmission block, a circle block is fixedly connected to the top of the assembly block, the transmission block is slidably connected to the inner wall of the circle block, and one side of the other mounting rod is also rotatably connected to the docking shaft.
[0007] Furthermore, a servo motor is fixedly mounted on one side of the mounting rod, and an output shaft of the servo motor is fixedly connected to one end of the central rotating rod.
[0008] By adopting the above technical solution, power is provided for adjusting the angular position.
[0009] Furthermore, the workpiece fixing assembly includes a base plate, which is fixedly connected between the two docking shafts, a transverse protrusion is fixedly connected to one side of the base plate, a transverse axis bidirectional screw rod is rotatably connected between the two transverse protrusions, a nut block is threadedly connected to the outer wall of the transverse axis bidirectional screw rod, and a transverse turntable handle is fixedly connected to one end of the transverse axis bidirectional screw rod.
[0010] The above technical solution is adopted for lateral distance adjustment.
[0011] Furthermore, a longitudinal bidirectional screw rod is rotatably connected between the two nut blocks, one end of the longitudinal bidirectional screw rod is connected to a longitudinal turntable handle, and an outer wall of the longitudinal bidirectional screw rod is threadedly connected to an angle limit block.
[0012] The above technical solution is adopted to adjust the distance in the longitudinal direction.
[0013] Furthermore, a transverse limiting rod is fixedly connected between the two transverse protrusions, and the transverse limiting rod passes through the two nut blocks and is movably connected.
[0014] By adopting the above technical solution, the nut block is limited to prevent it from following the rotation.
[0015] Furthermore, a longitudinal limiting rod is fixedly connected between the two corner limiting blocks, and the longitudinal limiting rod passes through the two corner limiting blocks and is movably connected.
[0016] By adopting the above technical solution, the angle limit block is limited to prevent it from following the rotation.
[0017] Beneficial Effects
[0018] The utility model provides a workpiece positioning mechanism for automobile welding tooling. Compared with the prior art, it has the following beneficial effects:
[0019] 1. The workpiece positioning mechanism for automobile welding tooling can drive the center rotating rod to rotate by starting the servo motor, so that the entire workpiece positioning assembly can be rotated to the adjusted position angle. The positioning effect can be achieved by blocking the center rotating rod and the docking shaft by blocking the positioning block in the limit groove, and fixing them in one position without moving. If you want to continue to adjust the position angle, you can press the arc pressure rod, and the arc surface of the arc pressure rod will slide with one end of the transmission block and press it down to lift the positioning block, so as to release the restriction on the center rotating rod and the docking shaft.
[0020] 2. The workpiece positioning mechanism for the automobile welding tooling can drive the two horizontal axis bidirectional screws to rotate by rotating the two horizontal turntable handles at the same time, so that the two nut blocks can move away from or closer to each other. At the same time, rotating the two vertical turntable handles can drive the two vertical axis bidirectional screws to rotate, so as to control the two corner limit blocks to move closer to or away from each other. The combination of the two can limit the four corners of the automobile component plate through the corner limit blocks to fix it for subsequent angle adjustment and welding. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the implementation scheme of the utility model or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0022] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;
[0023] Figure 2 This utility model Figure 1 A magnified view of the structure at A;
[0024] Figure 3 This utility model Figure 1 A magnified view of the structure at B;
[0025] Figure 4 It is a structural side view of the utility model;
[0026] Figure 5 This utility model Figure 4 A magnified view of the structure at C;
[0027] Figure 6 It is a structural sectional view of the utility model;
[0028] Figure 7 This utility model Figure 6 Enlarged view of the structure at D.
[0029] In the figure: 1. operating table; 2. rotation positioning assembly; 21. mounting rod; 22. assembly block; 23. center rotating rod; 24. docking shaft; 25. limiting groove; 26. first protruding block; 27. arc pressure rod; 28. positioning block; 29. transmission block; 210. circle block; 211. spring; 212. servo motor; 3. workpiece fixing assembly; 31. bottom plate; 32. transverse protrusion; 33. transverse axis bidirectional screw rod; 34. nut block; 35. longitudinal axis bidirectional screw rod; 36. angle limiting block; 37. transverse turntable handle; 38. longitudinal turntable handle; 39. longitudinal limiting rod; 310. transverse limiting rod. DETAILED DESCRIPTION
[0030] It should be noted that in the description of the embodiments of the present application, the terms "front, rear", "left, right", "up, down", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application. The terms "install", "connect", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0031] The present application is further described in detail below through drawings and examples.
[0032] Reference Figures 1 to 7The embodiment of the present application provides a workpiece positioning mechanism for automobile welding tooling, including an operating table 1, a rotating positioning assembly 2 is arranged on the top of the operating table 1; a workpiece fixing assembly 3 is arranged on one side of the rotating positioning assembly 2; the rotating positioning assembly 2 includes a mounting rod 21, the mounting rod 21 is fixedly connected to the top of the operating table 1, an assembly block 22 is fixedly connected to the top of the mounting rod 21, a central rotating rod 23 is rotatably connected inside the assembly block 22, one end of the central rotating rod 23 is fixedly connected to a docking shaft 24, a limiting groove 25 is provided on the outer wall of the docking shaft 24, and the assembly block The top of the assembly block 22 is fixedly connected with a first protruding block 26, and an arc-shaped pressure rod 27 is rotatably connected between the two first protruding blocks 26. A clamping block 28 is fixedly connected to the bottom of one end of the arc-shaped pressure rod 27, and the clamping block 28 can be clamped in the limiting groove 25. A spring 211 is fixedly connected in the groove at the top of the assembly block 22, and a transmission block 29 is fixedly connected to one end of the spring 211. A circle block 210 is fixedly connected to the top of the assembly block 22, and the transmission block 29 is slidably connected to the inner wall of the circle block 210. One side of the other mounting rod 21 is also rotatably connected with a docking shaft 24. A servo motor 212 is fixedly installed on one side of the mounting rod 21, and the output shaft of the servo motor 212 is fixedly connected to one end of the central rotating rod 23.
[0033] During specific implementation: by starting the servo motor 212, the center rotating rod 23 can be driven to rotate, and then the entire workpiece fixing assembly 3 can be rotated to the adjusted position angle. By the blocking block 28 being stuck in the limit groove 25, the rotation of the center rotating rod 23 and the docking shaft 24 can be prevented to achieve the positioning effect, and it is fixed in one position without moving. If you want to continue to adjust the position angle, you can press the arc pressure rod 27. The arc surface of the arc pressure rod 27 will slide with one end of the transmission block 29 and press it down to lift the blocking block 28, so that the restriction on the center rotating rod 23 and the docking shaft 24 can be released, and the servo motor 212 can be started again for adjustment. When the position is satisfactory, the arc pressure rod 27 can be released. Under the elastic force of the spring 211, the arc pressure rod 27 can be reset through the transmission block 29, and the blocking block 28 can be stuck in the limit groove 25 again to fix it again.
[0034] Reference Figures 1 to 7In one aspect of the present embodiment, the workpiece fixing assembly 3 includes a bottom plate 31, which is fixedly connected between the two docking shafts 24, a transverse protrusion 32 is fixedly connected to one side of the bottom plate 31, a transverse axis bidirectional screw rod 33 is rotatably connected between the two transverse protrusions 32, a nut block 34 is threadedly connected to the outer wall of the transverse axis bidirectional screw rod 33, and a transverse turntable handle 37 is fixedly connected to one end of the transverse axis bidirectional screw rod 33. A longitudinal axis bidirectional screw rod 35 is rotatably connected between the two nut blocks 34, a longitudinal turntable handle 38 is connected to one end of the longitudinal axis bidirectional screw rod 35, and an angle stopper 36 is threadedly connected to the outer wall of the longitudinal axis bidirectional screw rod 35. A transverse stopper rod 310 is fixedly connected between the two transverse protrusions 32, and the transverse stopper rod 310 passes through the two nut blocks 34 and is movably connected. A longitudinal stopper rod 39 is fixedly connected between the two angle stopper blocks 36, and the longitudinal stopper rod 39 passes through the two angle stopper blocks 36 and is movably connected.
[0035] During specific implementation: by simultaneously rotating the two horizontal turntable handles 37, the two horizontal axis bidirectional screw rods 33 can be driven to rotate, thereby causing the two nut blocks 34 to move away from or closer to each other. By simultaneously rotating the two vertical turntable handles 38, the two vertical axis bidirectional screw rods 35 can be driven to rotate, thereby controlling the two corner limit blocks 36 to move closer to or away from each other. The combination of the two can limit the four corners of the automotive component plate through the corner limit blocks 36 to fix it for subsequent angle adjustment and welding. The horizontal limit rod 310 is used to limit the nut block 34 to prevent it from rotating with it, and the longitudinal limit rod 39 is used to limit the corner limit block 36 to prevent it from rotating with it (the horizontal turntable handle 37 and the vertical turntable handle 38 are used as a way to provide power. According to actual needs, they can also be replaced by a motor to drive each bidirectional screw rod to rotate. The motor can be directly installed on one side of the base plate 31).
[0036] All electrical equipment in this solution are powered by an external power supply.
[0037] Working principle: By starting the servo motor 212, the center rotating rod 23 can be driven to rotate, and then the entire workpiece fixing assembly 3 can be rotated to the adjusted position angle. By blocking the positioning block 28 in the limit groove 25, the rotation of the center rotating rod 23 and the docking shaft 24 can be prevented to achieve the positioning effect, and it is fixed in one position. If you want to continue to adjust the position angle, you can press the arc pressure rod 27. The arc surface of the arc pressure rod 27 will slide with one end of the transmission block 29 and press it down to lift the positioning block 28, so that the restriction on the center rotating rod 23 and the docking shaft 24 can be released, and the servo motor 212 can be started again for adjustment. When the position is satisfactory, the arc pressure rod 27 can be released and the arc pressure rod 27 can be transmitted under the elastic force of the spring 211. Block 29 resets the arc pressure rod 27 and re-engages the locking block 28 in the limiting groove 25 so that it can be fixed again: by rotating the two horizontal turntable handles 37 at the same time, the two horizontal axis bidirectional screw rods 33 can be driven to rotate, thereby making the two nut blocks 34 move away from or closer to each other, and by rotating the two longitudinal turntable handles 38 at the same time, the two longitudinal axis bidirectional screw rods 35 can be driven to rotate, so that the two corner limit blocks 36 can be controlled to move closer to or away from each other. The combination of the two can limit the four corners of the automotive parts plate through the corner limit blocks 36 to fix it for subsequent angle adjustment and welding. The horizontal limit rod 310 is used to limit the nut block 34 to prevent it from rotating with it, and the longitudinal limit rod 39 is used to limit the corner limit block 36 to prevent it from rotating with it.
[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0039] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A workpiece positioning mechanism for automobile welding tooling, comprising an operating table (1), characterized in that: A rotation positioning assembly (2) is arranged on the top of the operating table (1); a workpiece fixing assembly (3) is arranged on one side of the rotation positioning assembly (2); the rotation positioning assembly (2) comprises a mounting rod (21), the mounting rod (21) is fixedly connected to the top of the operating table (1), an assembly block (22) is fixedly connected to the top of the mounting rod (21), a central rotating rod (23) is rotatably connected inside the assembly block (22), one end of the central rotating rod (23) is fixedly connected to a docking shaft (24), a limiting groove (25) is provided on the outer wall of the docking shaft (24), and a first convex groove (25) is fixedly connected to the top of the assembly block (22). The assembly block (26) comprises a protruding block (26), an arc-shaped pressure rod (27) rotatably connected between the two first protruding blocks (26), a locking block (28) fixedly connected to the bottom of one end of the arc-shaped pressure rod (27), and the locking block (28) can be locked in the limiting groove (25), a spring (211) is fixedly connected in the top groove of the assembly block (22), one end of the spring (211) is fixedly connected to a transmission block (29), the top of the assembly block (22) is fixedly connected to a circle block (210), and the transmission block (29) is slidably connected to the inner wall of the circle block (210), and one side of the other mounting rod (21) is also rotatably connected to a docking shaft (24).
2. The workpiece positioning mechanism for automobile welding tooling according to claim 1, characterized in that: A servo motor (212) is fixedly mounted on one side of the mounting rod (21), and an output shaft of the servo motor (212) is fixedly connected to one end of the central rotating rod (23).
3. The workpiece positioning mechanism for automobile welding tooling according to claim 1, characterized in that: The workpiece fixing assembly (3) comprises a base plate (31), the base plate (31) is fixedly connected between the two docking shafts (24), a transverse protrusion (32) is fixedly connected to one side of the base plate (31), a transverse axis bidirectional screw rod (33) is rotatably connected between the two transverse protrusions (32), a nut block (34) is threadedly connected to the outer wall of the transverse axis bidirectional screw rod (33), and a transverse turntable handle (37) is fixedly connected to one end of the transverse axis bidirectional screw rod (33).
4. The workpiece positioning mechanism for automobile welding tooling according to claim 3, characterized in that: A longitudinal bidirectional screw rod (35) is rotatably connected between the two nut blocks (34), one end of the longitudinal bidirectional screw rod (35) is connected to a longitudinal turntable handle (38), and an outer wall of the longitudinal bidirectional screw rod (35) is threadedly connected to an angle limit block (36).
5. The workpiece positioning mechanism for automobile welding tooling according to claim 3, characterized in that: A transverse limiting rod (310) is fixedly connected between the two transverse protrusions (32), and the transverse limiting rod (310) passes through the two nut blocks (34) and is movably connected.
6. The workpiece positioning mechanism for automobile welding tooling according to claim 4, characterized in that: A longitudinal limiting rod (39) is fixedly connected between the two corner limiting blocks (36), and the longitudinal limiting rod (39) passes through the two corner limiting blocks (36) and is movably connected.