A positioning fixture for a stud welding tool

Abstract

The utility model relates to the field of welding automation discloses a kind of tool positioning fixture for stud welding, including fixed column, the lower surface of the fixed column is provided with suction disc, the inside lateral wall of the fixed column is provided with multi-angle adjusting assembly, the front end of the multi-angle adjusting assembly is provided with positioning assembly, the positioning assembly includes outer shell, the bottom end of the inside lateral wall of the outer shell is fixedly connected with guide disc, the top end of the inside lateral wall of the outer shell is rotatably connected with rotary disc.In the utility model, push convex rod drives rotary disc to rotate, its inclined groove and guide disc straight groove jointly guide slider, drive positioning block to close or separate, can be adapted to the stud of different diameters of 5-20mm, without replacing positioning assembly;Clamp after reverse rotation self-locking screw rod, utilize the thread self-locking property fixed convex rod and rotary disc, ensure that stud is not loose when welding, and batch welding does not need to interrupt replacement fixture, general versatility and production efficiency are considered.

Description

Technical Field

[0001] This utility model relates to the field of welding automation, and in particular to a tooling positioning fixture for stud welding. Background Technology

[0002] Laser welding automation is a high-precision, high-efficiency welding technology system that deeply integrates laser welding technology with automated systems (mechanical execution, intelligent control, sensing and detection, etc.) to achieve a welding process that requires "no or minimal human intervention." Its core is to use automated equipment to replace manual labor in completing the entire process of "positioning, welding, monitoring, and quality inspection."

[0003] Bolt welding fixtures are auxiliary equipment / devices specifically designed for bolt (especially stud bolt) welding processes. Their core functions include "precise positioning, stable clamping, and guiding assistance" to ensure that the bolts are accurately positioned, angled correctly, and securely connected after welding, while also improving welding efficiency and reducing human error.

[0004] However, the positioning components (such as positioning blocks and clamping claws) of traditional fixtures have a fixed spacing and can only be used for studs of a single diameter. When welding studs of different specifications, the original positioning components need to be disassembled and a fixture of the appropriate specifications needs to be replaced. Each replacement takes more than 15 minutes. To address this issue, a tooling positioning fixture for stud welding is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a tooling positioning fixture for stud welding, which aims to improve the problem that the positioning components (such as positioning blocks and clamping claws) of traditional fixtures in the prior art have fixed spacing and can only be adapted to studs of a single diameter.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tooling positioning fixture for stud welding, comprising a fixed column, a suction cup provided on the lower surface of the fixed column, a multi-angle adjustment component provided on the inner side wall of the fixed column, and a positioning component provided at the front end of the multi-angle adjustment component;

[0007] The positioning component includes an outer shell. A guide plate is fixedly connected to the bottom end of the inner sidewall of the outer shell, and a rotating disk is rotatably connected to the top end of the inner sidewall of the outer shell. A contact plate is fixedly connected to the outer arc surface of the outer shell. An inclined groove is formed on the surface of the rotating disk, and a straight groove is formed on the surface of the guide plate. Slider blocks are slidably connected to the inner walls of both the inclined groove of the rotating disk and the straight groove of the guide plate. A positioning block is fixedly connected between the upper and lower sets of sliders. A protruding rod is fixedly connected to the outer arc surface of the rotating disk, and a self-locking screw is threaded through the inner wall of the protruding rod.

[0008] As a further description of the above technical solution:

[0009] The multi-angle adjustment assembly includes a threaded rod, a threaded block is threadedly connected to the surface of the threaded rod, a fixed rod is fixedly connected to the front end of the threaded block, a rotating rod is rotatably connected to the front end of the fixed rod, the end of the rotating rod away from the fixed rod is fixedly connected to the outer sidewall of the guide plate, an insert is elastically connected to the inner sidewall of the fixed rod through a return spring, and a guide rod is slidably connected to the inner sidewall of the insert.

[0010] As a further description of the above technical solution:

[0011] The bottom end of the outer wall of the self-locking screw is in contact with the surface of the contact plate.

[0012] As a further description of the above technical solution:

[0013] The outer arc surface of the outer shell is provided with a guide groove, and the protruding rod passes through and is slidably connected to the inner side wall of the guide groove of the outer shell.

[0014] As a further description of the above technical solution:

[0015] The threaded rod is rotatably connected to the inner side wall of the fixed column, and the inner side wall of the fixed column is provided with a sliding groove. The threaded block is slidably connected to the inner side wall of the sliding groove of the fixed column.

[0016] As a further description of the above technical solution:

[0017] One end of the reset spring is fixedly connected to the inner side wall of the fixing rod, and the other end of the reset spring is fixedly connected to the rear end of the insert block.

[0018] As a further description of the above technical solution:

[0019] The insert block is slidably connected to the inner side wall of the fixing rod, and the guide rod is fixedly connected to the inner side wall of the fixing rod.

[0020] As a further description of the above technical solution:

[0021] The outer arc surface of the rotating rod is provided with a slot, and the outer wall of the insert block is in contact with the inner side wall of the rotating rod slot.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the pusher rod drives the rotating disk to rotate. Its inclined groove and the straight groove of the guide disk jointly guide the slider, driving the positioning block to move closer or separate. It can be adapted to studs of different diameters from 5-20mm without the need to replace the positioning components. After clamping, the self-locking screw is rotated in the opposite direction. The self-locking property of the thread is used to fix the pusher rod and the rotating disk, ensuring that the stud does not loosen during welding. Moreover, there is no need to interrupt the replacement of the fixture during batch welding, which takes into account both versatility and production efficiency.

[0024] 2. In this utility model, the suction cup can quickly adhere to different workpiece surfaces such as flat and curved surfaces without damaging the workpiece and the fixing time is shortened to less than 1 minute; rotating the threaded rod drives the threaded block to move linearly along the fixed column groove, realizing precise adjustment of the stud height and adapting to different thickness plates; pulling the insert block can rotate the rotating rod, driving the positioning component to rotate to the required tilt angle, and after releasing, the reset spring pushes the insert block into the rotating rod slot to lock, preventing vibration and displacement. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a tooling positioning fixture for stud welding proposed in this utility model;

[0026] Figure 2 This is a partial cross-sectional view of the fixing column of a tooling positioning fixture for stud welding proposed in this utility model;

[0027] Figure 3 This is a partial cross-sectional view of the fixing rod of a tooling positioning fixture for stud welding proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the explosion-stage state of the positioning component of a tooling positioning fixture for stud welding proposed in this utility model.

[0029] Legend:

[0030] 1. Fixed post; 2. Suction cup; 3. Multi-angle adjustment assembly; 31. Threaded rod; 32. Threaded block; 33. Fixed rod; 34. Return spring; 35. Insert block; 36. Guide rod; 37. Rotating rod; 4. Positioning assembly; 41. Housing; 42. Contact plate; 43. Rotary disk; 44. Guide disk; 45. Protruding rod; 46. Self-locking screw; 47. Slider; 48. Positioning block. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3 The present invention provides an embodiment of a tooling positioning fixture for stud welding, comprising a fixed post 1, a suction cup 2 provided on the lower surface of the fixed post 1, which can fix the whole in multiple positions for stud welding by providing the suction cup 2, a multi-angle adjustment component 3 provided on the inner side wall of the fixed post 1, and a positioning component 4 provided at the front end of the multi-angle adjustment component 3.

[0033] Reference Figures 2-4 The positioning component 4 includes a housing 41. A guide disk 44 is fixedly connected to the bottom end of the inner sidewall of the housing 41, and a rotating disk 43 is rotatably connected to the top end of the inner sidewall of the housing 41. A contact plate 42 is fixedly connected to the outer arc surface of the housing 41. The surface of the rotating disk 43 has a slanted groove, and the surface of the guide disk 44 has a straight groove. Slider blocks 47 are slidably connected to the inner walls of both the slanted groove of the rotating disk 43 and the straight groove of the guide disk 44. A positioning block 48 is fixedly connected between the upper and lower sets of sliders 47. By rotating the rotating disk 43, the slanted groove on its surface can drive the sliders 47 to slide. At the same time, the sliders 47 at the bottom end of the positioning block 48 will slide in the straight groove of the guide disk 44. Thus, by the mutual approach of multiple sets of positioning blocks 48, studs of different diameters can be clamped and fixed. The outer arc surface of the rotating disk 43 is fixedly connected to a protruding rod 45, and the outer arc surface of the outer shell 41 is provided with a guide groove. The protruding rod 45 passes through and is slidably connected to the inner side wall of the guide groove of the outer shell 41. The inner wall of the protruding rod 45 is threadedly connected to a self-locking screw 46. The bottom end of the outer wall of the self-locking screw 46 contacts the surface of the contact plate 42. The self-locking screw 46 moves upward on the inner thread of the protruding rod 45 and disengages from the contact plate 42. At this time, it can drive the protruding rod 45 and the rotating disk 43 to rotate. After rotation, the self-locking screw 46 rotates in the opposite direction to contact the contact plate 42, thereby fixing the position of the protruding rod 45 and the rotating disk 43. The threaded engagement between the self-locking screw 46 and the protruding rod 45 has self-locking properties.

[0034] Reference Figures 1-3The multi-angle adjustment component 3 includes a threaded rod 31, with a threaded block 32 threadedly connected to the surface of the threaded rod 31. The threaded rod 31 is rotatably connected to the inner side wall of the fixed column 1. A handle is provided at the top of the outer wall of the fixed column 1. The threaded rod 31 can be rotated by the handle, so that the threaded block 32 can only move up and down on the surface of the threaded rod 31, thereby adjusting the stud according to the height of the welding position. A groove is provided on the inner side wall of the fixed column 1, and the threaded block 32 is slidably connected to the inner side wall of the groove of the fixed column 1. The threaded block 32 can only move up and down linearly on the inner side wall of the fixed column 1. A fixed rod 33 is fixedly connected to the front end of the threaded block 32, and a rotating rod 37 is rotatably connected to the front end of the fixed rod 33. The rotating rod 37 can rotate the front end of the fixed rod 33, thereby rotating the outer shell 41, thereby adjusting the inclination of the stud according to the angle of the welding position. The end of the rotating rod 37 away from the fixed rod 33 is fixedly connected to the outer side wall of the guide plate 44.

[0035] Reference Figure 2 and Figure 3 The inner sidewall of the fixed rod 33 is elastically connected to the insert block 35 via a return spring 34. One end of the return spring 34 is fixedly connected to the inner sidewall of the fixed rod 33, and the other end is fixedly connected to the rear end of the insert block 35. The function of the return spring 34 is to automatically reset the position of the insert block 35 after it is pulled backward. The insert block 35 is slidably connected to the inner sidewall of the fixed rod 33. The guide rod 36 is fixedly connected to the inner sidewall of the fixed rod 33. The function of the guide rod 36 is to guide the movement of the insert block 35. The outer arc surface of the rotating rod 37 has a slot. The outer wall of the insert block 35 contacts the inner sidewall of the slot of the rotating rod 37. The contact between the two allows the rotating rod 37 to rotate relative to the fixed rod 33, thereby driving the outer shell 41 to rotate at multiple angles for fixation. The inner sidewall of the insert block 35 is slidably connected to the guide rod 36.

[0036] Working principle: First, the suction cup 2 on the lower surface of the fixed post 1 is used to adsorb and fix the entire tooling positioning fixture at the target position required for stud welding, ensuring the overall stability of the fixture. If the stud welding height needs to be adjusted, the handle at the top of the outer wall of the fixed post 1 is rotated, driving the threaded rod 31 connected to the inner side wall of the fixed post 1 to rotate; because the threaded block 32 is slidably connected in the groove of the fixed post 1, when the threaded rod 31 rotates, it drives the threaded block 32 to move up and down linearly along the groove, and the fixing rod 33 at the front end of the threaded block 32 moves synchronously, realizing the precise adjustment of the stud welding height. If the welding angle of the stud needs to be adjusted, pull the insert 35 outward. The insert 35 slides along the guide rod 36 inside the fixed rod 33, while compressing the return spring 34 (one end of the return spring 34 is connected to the inner wall of the fixed rod 33 and the other end is connected to the rear end of the insert 35), so that the insert 35 disengages from the slot on the outer arc surface of the rotating rod 37. At this time, the rotating rod 37 (rotatably connected to the front end of the fixed rod 33) can be rotated to drive the guide plate 44 and the outer shell 41 of the positioning component 4 to rotate to the required tilt angle. After releasing the insert 35, the return spring 34 elastically resets, pushing the insert 35 to re-insert into the slot of the rotating rod 37, thus completing the angle fixation.

[0037] After the angle and height are adjusted, the stud is fixed by the positioning component 4. First, rotate the self-locking screw 46 (threaded to the inner wall of the protruding rod 45) so that its bottom end is disengaged from the contact plate 42 (fixed to the outer arc surface of the outer shell 41), thus releasing the lock on the protruding rod 45. Then, push the protruding rod 45 to slide along the guide groove on the outer arc surface of the outer shell 41, causing the rotating disk 43 connected to the top of the inner side of the outer shell 41 to rotate synchronously. The inclined groove on the surface of the rotating disk 43 and the straight groove on the surface of the guide disk 44 (fixed to the bottom of the inner side of the outer shell 41) jointly guide the slider 47. The slider 47 drives the positioning blocks 48 connected above and below to move closer to each other until multiple sets of positioning blocks 48 clamp the stud to be welded (adapting to studs of different diameters). After clamping, the self-locking screw 46 is rotated in the opposite direction so that its bottom end is in close contact with the contact plate 42 again. The self-locking property of the thread between the self-locking screw 46 and the protrusion 45 is used to fix the position of the protrusion 45 and the rotating disk 43, ensuring that the positioning block 48 continuously and stably clamps the stud, providing accurate positioning for subsequent stud welding.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tooling positioning fixture for stud welding, comprising a fixing post (1), characterized in that: The lower surface of the fixed column (1) is provided with a suction cup (2), the inner side wall of the fixed column (1) is provided with a multi-angle adjustment component (3), and the front end of the multi-angle adjustment component (3) is provided with a positioning component (4). The positioning component (4) includes a housing (41), a guide plate (44) is fixedly connected to the bottom end of the inner sidewall of the housing (41), a rotating plate (43) is rotatably connected to the top end of the inner sidewall of the housing (41), a contact plate (42) is fixedly connected to the outer arc surface of the housing (41), a slanted groove is opened on the surface of the rotating plate (43), a straight groove is opened on the surface of the guide plate (44), sliders (47) are slidably connected to the inner walls of the slanted groove of the rotating plate (43) and the straight groove of the guide plate (44), a positioning block (48) is fixedly connected between the upper and lower sets of sliders (47), a protruding rod (45) is fixedly connected to the outer arc surface of the rotating plate (43), and a self-locking screw (46) is threaded through and threaded to the inner wall of the protruding rod (45).

2. The tooling positioning fixture for stud welding according to claim 1, characterized in that: The multi-angle adjustment component (3) includes a threaded rod (31), a threaded block (32) is threadedly connected to the surface of the threaded rod (31), a fixed rod (33) is fixedly connected to the front end of the threaded block (32), a rotating rod (37) is rotatably connected to the front end of the fixed rod (33), the end of the rotating rod (37) away from the fixed rod (33) is fixedly connected to the outer sidewall of the guide plate (44), an insert (35) is elastically connected to the inner sidewall of the fixed rod (33) through a return spring (34), and a guide rod (36) is slidably connected to the inner sidewall of the insert (35).

3. The tooling positioning fixture for stud welding according to claim 1, characterized in that: The bottom end of the outer wall of the self-locking screw (46) is in contact with the surface of the contact plate (42).

4. The tooling positioning fixture for stud welding according to claim 1, characterized in that: The outer arc surface of the outer shell (41) is provided with a guide groove, and the protruding rod (45) passes through and is slidably connected to the inner side wall of the guide groove of the outer shell (41).

5. A tooling positioning fixture for stud welding according to claim 2, characterized in that: The threaded rod (31) is rotatably connected to the inner side wall of the fixed column (1), and the inner side wall of the fixed column (1) is provided with a sliding groove. The threaded block (32) is slidably connected to the inner side wall of the sliding groove of the fixed column (1).

6. A tooling positioning fixture for stud welding according to claim 2, characterized in that: One end of the reset spring (34) is fixedly connected to the inner side wall of the fixing rod (33), and the other end of the reset spring (34) is fixedly connected to the rear end of the insert block (35).

7. A tooling positioning fixture for stud welding according to claim 2, characterized in that: The insert (35) is slidably connected to the inner side wall of the fixing rod (33), and the guide rod (36) is fixedly connected to the inner side wall of the fixing rod (33).

8. A tooling positioning fixture for stud welding according to claim 2, characterized in that: The outer arc surface of the rotating rod (37) is provided with a slot, and the outer wall of the insert (35) is in contact with the inner side wall of the slot of the rotating rod (37).

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