Metal plate welding positioning tool
By using a combination of a two-way lead screw and a rubber head driven by a rotary motor, along with a powerful spring and a hook, the problem of inaccurate positioning of sheet metal parts before welding is solved, achieving stable fixing and precise positioning of sheet metal parts and improving welding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏成雅智能科技有限公司
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-26
AI Technical Summary
In the current sheet metal welding process, sheet metal parts are difficult to fix effectively before welding, which can easily lead to shaking and misalignment, resulting in inaccurate positioning.
The combination structure of a two-way lead screw and rubber head driven by a rotary motor, along with a strong spring and hook, enables multi-axial movement and fixation of sheet metal parts and the rotary motor. The mechanical structure achieves stable positioning and fixation of the sheet metal parts.
It achieves stable and reliable positioning of sheet metal parts, avoids sheet metal wobbling and misalignment, and improves welding accuracy and efficiency.
Smart Images

Figure CN224273855U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of positioning tooling technology, specifically a sheet metal welding positioning tooling. Background Technology
[0002] Existing sheet metal processing techniques include shearing, punching, cutting, compounding, bending, welding, riveting, splicing, and forming. Before welding box-type sheet metal parts, in order to prevent the sheet metal parts from shaking during welding, it is necessary to position and fix the sheet metal parts. Before placing the sheet metal parts, it is necessary to initially determine the positions of the two sides of the sheet metal parts and perform positioning and fixing operations to avoid misalignment of the sheet metal parts during placement. Therefore, a sheet metal welding positioning fixture is needed to solve the above problems. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a sheet metal welding positioning fixture, which solves the problems mentioned in the background.
[0004] This utility model provides the following technical solution: a sheet metal welding positioning fixture, comprising: a base, a rotary motor fixedly mounted on the outer wall of the base, a bidirectional lead screw connected to the outer wall of the rotary motor, an inner groove formed in the inner cavity of the base, a slider sleeved on the outer wall of the bidirectional lead screw, a limiting head provided on the side of the slider, a rubber head connected to the outer wall of the slider, a side limiting piece provided on the outer wall of the base, a box-like sheet metal part placed on the top of the base, a fixing frame connected to the outer wall of the base, a fixing nail fixedly connected to the outer wall of the fixing frame, a hook movably sleeved on the outer wall of the fixing nail, a connecting frame connected to the outer wall of the fixing frame, a strong spring connected to the outer wall of the connecting frame, a manual clamping device provided on the top of the fixing frame, a movable nail movably sleeved on the inner wall of the manual clamping device, a presser connected to the outer wall of the manual clamping device, and a positioning rod fixedly connected to the outer wall of the manual clamping device.
[0005] Preferably, the outer wall of the bidirectional lead screw is provided with external threads, and the inner wall of the slider is provided with internal threads.
[0006] Preferably, the limiting head is disposed on both sides of the slider, and the limiting head overlaps the surface of the base.
[0007] Preferably, there are two side limiting pieces, and the two side limiting pieces are symmetrically arranged on both sides of the inner groove.
[0008] Preferably, the inner wall of the hook on the side away from the fixing nail is hook-shaped, and the size of the inner wall of the hook is adapted to the size of the positioning rod.
[0009] Preferably, the connecting frame is located on the side near the positioning rod, and the top of the strong spring is located at the bottom of the manual clamp.
[0010] Preferably, the movable pin penetrates the inner wall of the fixing frame and the manual clamp, and the manual clamp rotates around the movable pin as the center point.
[0011] Preferably, the bottom of the manual clamp is connected to a pressure head, and the pressure head is located on the other side away from the presser.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. This sheet metal welding positioning fixture, through the setting of a pressure head, a presser, a strong spring, a hook, and a box-type sheet metal part, allows the pressure head on the device to push downwards and squeeze the box-type sheet metal part under the natural elastic force of the strong spring, thus positioning it from top to bottom. When needed, the presser on the manual pressing device can be used to tilt one side of the pressure head up, so that the hook on the device can hook onto the outer wall of the positioning rod. Therefore, when releasing the hand after pressing, the pressure head will not press the box-type sheet metal part, avoiding the problem of difficulty in placing the box-type sheet metal part on the fixture. When the hook is released, the elasticity of the strong spring automatically positions and fixes the pressure head.
[0014] 2. This sheet metal welding positioning fixture, by setting up a rotary motor, a two-way lead screw, rubber heads, and box-type sheet metal parts, allows the rotary motor to output power when the box-type sheet metal parts are placed on top of the base. The two-way threads on the surface of the two-way lead screw move two rubber heads in different directions simultaneously, causing the two rubber heads located in the inner cavity of the box-type sheet metal parts to move to both sides and abut against the inner wall of the box-type sheet metal parts. This allows the box-type sheet metal parts on the device to be expanded and fixed from the inside by the middle rubber head. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;
[0017] Figure 3 This is a schematic diagram of the rubber head structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the hook structure of this utility model;
[0019] Figure 5 This is a top-view three-dimensional structural diagram of the present invention.
[0020] In the diagram: 1. Base; 2. Rotary motor; 3. Two-way lead screw; 4. Inner groove; 5. Slider; 6. Limit head; 7. Rubber head; 8. Side limit plate; 9. Box-type sheet metal part; 10. Fixing frame; 11. Fixing nail; 12. Hook; 13. Connecting frame; 14. Strong spring; 15. Manual clamp; 16. Movable nail; 17. Presser; 18. Positioning rod; 19. Press head. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-5 A sheet metal welding positioning fixture includes: a base 1, a rotary motor 2 fixedly mounted on the outer wall of the base 1, a bidirectional lead screw 3 connected to the outer wall of the rotary motor 2, an inner groove 4 opened in the inner cavity of the base 1, a slider 5 sleeved on the outer wall of the bidirectional lead screw 3, a limiting head 6 provided on the side of the slider 5, a rubber head 7 connected to the outer wall of the slider 5, a side limiting piece 8 provided on the outer wall of the base 1, a box-like sheet metal part 9 placed on the top of the base 1, a fixing frame 10 connected to the outer wall of the base 1, a fixing nail 11 fixedly connected to the outer wall of the fixing frame 10, a hook 12 movably sleeved on the outer wall of the fixing nail 11, a connecting frame 13 connected to the outer wall of the fixing frame 10, a strong spring 14 connected to the outer wall of the connecting frame 13, a manual clamp 15 provided on the top of the fixing frame 10, a movable nail 16 movably sleeved on the inner wall of the manual clamp 15, a presser 17 connected to the outer wall of the manual clamp 15, and a positioning rod 18 fixedly connected to the outer wall of the manual clamp 15.
[0023] The outer wall of the bidirectional lead screw 3 is provided with an external thread, and the inner wall of the slider 5 is provided with an internal thread. Through the bidirectional lead screw 3 and the slider 5, the slider 5 and the bidirectional lead screw 3 on the device are engaged by the threads. When the rotary motor 2 on the device outputs rotational power, the slider 5 moves left and right along the outer wall of the bidirectional lead screw 3, thereby moving the slider 5 on the device carrying the rubber head 7.
[0024] The limiting head 6 is located on both sides of the slider 5 and overlaps the surface of the base 1. By setting the limiting head 6 on both sides of the slider 5, the limiting head 6 on both sides of the slider 5 can prevent the slider 5 from tipping over during the movement of the slider 5, thereby preventing the slider 5 from moving smoothly.
[0025] Among them, there are two side limiting pieces 8, and the two side limiting pieces 8 are symmetrically arranged on both sides of the inner groove 4. Through the two symmetrically arranged side limiting pieces 8, when the box-type sheet metal part 9 on the device is placed on the top of the base 1, the two side limiting pieces 8 will wrap the inner walls of the box-type sheet metal part 9, so that the box-type sheet metal part 9 on the device will not be placed on the top of the inner groove 4 on one side.
[0026] The hook 12 has a hook-shaped inner wall on the side away from the fixing nail 11, and the size of the inner wall of the hook 12 is adapted to the size of the positioning rod 18. The hook 12 on the device rotates around the fixing nail 11 as the center point, so that the side of the hook 12 away from the fixing nail 11 overlaps the outer wall of the positioning rod 18 after rotation. The hook 12 hooks the outer wall of the positioning rod 18, so that the manual clamp 15 on the device is fixed and tilted when the positioning rod 18 is hooked on one side.
[0027] The connecting frame 13 is located on the side near the positioning rod 18, and the top of the strong spring 14 is located at the bottom of the manual clamp 15. The connecting frame 13 is connected to the bottom of the strong spring 14 on the device, so that when the manual clamp 15 is manually pressed by the presser 17, the strong spring 14 on the device will enter the contraction stage, and when the pressing force is applied, the strong spring 14 will push the manual clamp 15 to tilt upward on the side of the presser 17, thereby driving the pressure head 19 mounted on the manual clamp 15 downward on the other side away from the presser 17.
[0028] The movable pin 16 penetrates the inner wall of the fixed frame 10 and the manual clamp 15, and the manual clamp 15 rotates around the movable pin 16. The manual clamp 15 is set on the top of the fixed frame 10, and the fixed frame 10 and the manual clamp 15 are movably connected by the movable pin 16 penetrating the inner wall of the fixed frame 10 and the manual clamp 15. This allows the manual clamp 15 to rotate around the movable pin 16 each time it rotates.
[0029] The manual clamp 15 has a pressure head 19 connected to its bottom, and the pressure head 19 is located on the other side away from the presser 17. The pressure head 19 is located on the top of the box-type sheet metal part 9 on the other side away from the presser 17. The pressure head 19 presses on both sides of the top of the box-type sheet metal part 9 in a symmetrical manner. When the presser 17 is pressed or the positioning rod 18 is hooked, the pressure head 19 will be in a shape away from the top of the box-type sheet metal part 9, so that the pressure head 19 on the device no longer fixes the positioning of the box-type sheet metal part 9 by pressing.
[0030] The working principle is as follows: First, through the structure including the rotary motor 2, the bidirectional lead screw 3, the rubber head 7, and the box-shaped sheet metal part 9, when the box-shaped sheet metal part 9 is placed on top of the base 1, the rotary motor 2 outputs power, and the bidirectional thread on the surface of the bidirectional lead screw 3 moves the two rubber heads 7 in different directions simultaneously. This causes the two rubber heads 7 located inside the box-shaped sheet metal part 9 to move to both sides and abut against the inner wall of the box-shaped sheet metal part 9. This expands and fixes the box-shaped sheet metal part 9 from the inside by the middle rubber head 7. Then, by setting up the pressure head 19, the presser 17, the strong spring 14, and the hook 12, the device is further expanded and fixed. The structure, including the box-type sheet metal part 9, allows the pressure head 19 on the device to be pushed downward by the natural elastic force of the strong spring 14, pressing the box-type sheet metal part 9 from top to bottom for positioning. When needed, the presser 17 on the manual pressing device can be used to lift one side of the pressure head 19, so that the hook 12 on the device can hook onto the outer wall of the positioning rod 18. Therefore, when releasing the hand after pressing, the pressure head 19 will not press the box-type sheet metal part 9, avoiding the problem of difficulty in placing the box-type sheet metal part 9 on the tooling. When the hook 12 is released, the elasticity of the strong spring 14 automatically positions and fixes the pressure head 19.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sheet metal welding positioning fixture, characterized in that, include: A base (1) is provided with a rotary motor (2) fixedly mounted on its outer wall. A two-way lead screw (3) is connected to the outer wall of the rotary motor (2). An inner groove (4) is provided in the inner cavity of the base (1). A slider (5) is sleeved on the outer wall of the two-way lead screw (3). A limiting head (6) is provided on the side of the slider (5). A rubber head (7) is connected to the outer wall of the slider (5). A side limiting piece (8) is provided on the outer wall of the base (1). A box-type sheet metal part (9) is placed on the top of the base (1). A fixing frame (10) is connected to the outer wall of the base (1). A fixing nail (11) is fixedly connected to the outer wall of the fixing frame (10). A hook (12) is movably sleeved on the outer wall of the fixing nail (11). A connecting frame (13) is connected to the outer wall of the fixing frame (10). A strong spring (14) is connected to the outer wall of the connecting frame (13). A manual clamp (15) is provided on the top of the fixing frame (10). A movable nail (16) is movably sleeved on the inner wall of the manual clamp (15). A presser (17) is connected to the outer wall of the manual clamp (15). A positioning rod (18) is fixedly connected to the outer wall of the manual clamp (15).
2. The sheet metal welding positioning fixture according to claim 1, characterized in that, The outer wall of the bidirectional lead screw (3) is provided with external threads, and the inner wall of the slider (5) is provided with internal threads.
3. The sheet metal welding positioning fixture according to claim 1, characterized in that, The limiting head (6) is located on both sides of the slider (5), and the limiting head (6) overlaps the surface of the base (1).
4. The sheet metal welding positioning fixture according to claim 1, characterized in that, The number of side limiting pieces (8) is two, and the two side limiting pieces (8) are symmetrically arranged on both sides of the inner groove (4).
5. A sheet metal welding positioning fixture according to claim 1, characterized in that, The hook (12) has a hook-shaped inner wall on the side away from the fixing nail (11), and the size of the inner wall of the hook (12) is adapted to the size of the positioning rod (18).
6. The sheet metal welding positioning fixture according to claim 1, characterized in that, The connecting frame (13) is located on one side near the positioning rod (18), and the top of the strong spring (14) is located at the bottom of the manual clamp (15).
7. The sheet metal welding positioning fixture according to claim 1, characterized in that, The movable pin (16) penetrates the inner wall of the fixed frame (10) and the manual clamp (15), and the manual clamp (15) rotates with the movable pin (16) as the center point.
8. A sheet metal welding positioning fixture according to claim 1, characterized in that, The bottom of the manual clamp (15) is connected to a pressure head (19), and the pressure head (19) is located on the other side away from the presser (17).