A position adjustment device for sheet metal welding

Abstract

This utility model relates to the field of welding equipment technology and discloses a position adjustment device for sheet metal welding. It includes a worktable with a support welded to its bottom. A motor housing with a built-in motor is connected to the side of the support. The motor in the motor housing is connected to a lead screw located below the worktable. The two ends of the lead screw are rotatably mounted on the bottom surface of the worktable via bearings. A lead screw nut is slidably connected to the lead screw. The two sides of the lead screw nut are connected to a clamp on the worktable via connecting rods. The clamp is slidably connected to the worktable. By placing the lead screw nut at the bottom of the worktable, this utility model avoids wear and damage from metal debris, ensuring smooth movement. Furthermore, the adjustable bottom shape structure allows for easy switching between a flat bottom and a V-shape, broadening the applicability to sheet metal applications and making position adjustments more convenient and faster, further improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically a position adjustment device for sheet metal welding. Background Technology

[0002] In the production of many spare parts, sheet metal is welded together. During the welding process, an adjustment device is needed to adjust and fix the two sheet metal pieces so that they are aligned before welding.

[0003] Currently, common adjustment devices typically place the lead screw on a workbench for operation. However, metal shavings generated during welding can easily enter between the lead screw and the lead screw nut, causing wear or jamming. Furthermore, adjustments are required using clamps. Existing clamps generally use a top-down clamping method for fixation. When fixing cylindrical or tubular sheet metal parts, special clamps need to be disassembled and installed, which is inconvenient to use. This not only requires different clamps but also affects work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a position adjustment device for sheet metal welding to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a position adjustment device for sheet metal welding, comprising a worktable, a support welded to the bottom of the worktable, a motor housing with a built-in motor connected to the side of the support, the motor in the motor housing being connected to a lead screw located below the worktable, the two ends of the lead screw being rotatably mounted on the bottom surface of the worktable via bearings, and a lead screw nut being fitted onto the lead screw and slidably connected thereto, the two sides of the lead screw nut being connected to a clamp on the worktable via connecting rods, the clamp being slidably connected to the worktable.

[0006] Preferably, the left and right halves of the lead screw are respectively machined with threads of opposite directions, and two lead screw nuts are respectively provided and screwed onto the opposite threads.

[0007] Preferably, the fixture includes a sliding seat slidably mounted on a worktable. The sliding seat has a protrusion on the side away from the workpiece. The protrusion is connected to a screw perpendicular to it. The screw is fitted with a nut threadedly connected to it. The nut passes through a pressure plate located above the sliding seat, and the bottom of the nut is movably connected to the pressure plate. A limiting plate is provided on the side of the screw facing the workpiece. The bottom of the limiting plate is perpendicularly connected to the protrusion, and the top extends upward and passes through the pressure plate.

[0008] Preferably, the clamp further includes an adjustment structure for switching the shape of the support base. The adjustment structure includes a fixed shaft connected to the side of the protrusion. A first and second rotatable plate are sleeved on the fixed shaft. The first and second plates are symmetrically arranged on both sides of the fixed shaft. Each of the first and second plates has an extension that extends along the axial direction of the fixed shaft. The first and second plates are respectively connected to an arc-shaped first and second rack through the extension. The first and second racks are located on the side of the protrusion away from the fixed shaft and mesh with a main gear and a secondary gear, respectively. The main gear and the secondary gear are connected in a transmission manner.

[0009] Preferably, the main gear and the secondary gear are rotatably mounted on a fixed base via a rotating shaft. The fixed base is vertically fixed on the side of the protrusion away from the fixed shaft. The side of the fixed base facing the main gear has a socket hole. A pin rod arranged axially is movably inserted through the main gear, and the pin rod is adapted to the socket hole.

[0010] Preferably, a magnet is embedded in the socket.

[0011] Preferably, the first rack and the second rack are symmetrically arranged and have the same center, which is coaxial with the axis of the fixed shaft.

[0012] Preferably, the bottom of the sliding seat is provided with a slider, which slides in cooperation with a groove on the top surface of the worktable.

[0013] Preferably, a gap of 0.5-1cm is left between the bottom of the slider and the bottom of the groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention, by placing the lead screw nut at the bottom of the worktable, can prevent metal debris from causing wear and damage, ensuring smooth movement. Furthermore, through the adjustable support shape structure, it can be freely switched between a flat bottom and a V-shape, making it applicable to a wider range of sheet metal applications and making position adjustments more convenient and quick, further improving work efficiency. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of the sheet metal welding position adjustment device provided by this utility model;

[0017] Figure 2 A three-dimensional structural diagram of the clamp provided by this utility model;

[0018] Figure 3 Exploded view of the fixture provided by this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the clamp provided by this utility model when forming a V-shaped support.

[0020] In the diagram: 1. Workbench; 2. Support; 3. Motor housing; 4. Lead screw; 5. Bearing; 6. Lead screw nut; 7. Connecting rod; 8. Sliding seat; 9. Protrusion; 10. Screw; 11. Nut; 12. Pressure plate; 13. Limiting plate; 14. Fixed shaft; 15. First page plate; 16. Second page plate; 17. First rack; 18. Second rack; 19. Main gear; 20. Secondary gear; 21. Rotating shaft; 22. Fixed seat; 23. Insertion hole; 24. Pin rod; 25. Slider; 26. Groove. 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 Figures 1-4 As shown, a position adjustment device for sheet metal welding includes a worktable 1 for welding operations. A support bracket 2 is welded to the bottom of the worktable 1 for support. A motor housing 3 with a built-in motor is connected to the side of the support bracket 2 to provide power. The motor in the motor housing 3 is connected to a lead screw 4 located below the worktable 1, providing driving force to rotate the lead screw 4. The two ends of the lead screw 4 are rotatably mounted on the bottom surface of the worktable 1 through bearings 5, allowing the lead screw 4 to rotate in a fixed position and face away from the worktable 1, preventing contact with metal debris. A lead screw nut 6 is slidably connected to the lead screw 4. The rotation of the lead screw 4 drives the lead screw nut 6 to move linearly. The two sides of the lead screw nut 6 are connected to a clamp on the worktable 1 through connecting rods 7, so that the movement of the lead screw nut 6 can drive the clamp to move synchronously. The clamp is slidably connected to the worktable 1, allowing the clamp to slide and adjust its position on the worktable 1.

[0023] The left and right halves of the lead screw 4 are machined with threads of opposite directions. Two lead screw nuts 6 are set accordingly and screwed into the opposite threads. The opposite threads enable the lead screw 4 to rotate, which drives the two lead screw nuts 6 to move towards the middle at the same time, that is, to drive the two clamps to move closer together, thereby connecting the two sheet metal parts and facilitating welding.

[0024] The fixture includes a sliding seat 8, which is slidably mounted on the worktable 1 for position adjustment. A protrusion 9 is provided on the side of the sliding seat 8 away from the workpiece. A screw 10 is connected to the protrusion 9 perpendicularly thereto. A nut 11 is threadedly connected to the screw 10. The nut 11 passes through a pressure plate 12 located above the sliding seat 8, and the bottom of the nut 11 is movably connected to the pressure plate 12. Therefore, the nut 11 can drive the pressure plate 12 to move up and down without causing the pressure plate 12 to rotate. A limiting plate 13 is provided on the side of the screw 10 facing the workpiece. The bottom of the limiting plate 13 is perpendicularly connected to the protrusion 9, and the top extends upward and passes through the pressure plate 12. The limiting plate 13 can not only limit the fixed workpiece, but also guide the pressure plate 12, so that the pressure plate 12 always moves up and down in the same position.

[0025] The clamp also includes an adjustment structure for switching the bottom shape, capable of switching the bottom shape to a flat bottom and a V-shape. This adjustment structure includes a fixed shaft 14 connected to the side of the protrusion 9. A rotatable first page plate 15 and a second page plate 16 are fitted onto the fixed shaft 14. The first page plate 15 and the second page plate 16 can be rotated upwards to form a V-shape; when not rotated, they form a horizontal bottom support. The first page plate 15 and the second page plate 16 are symmetrically arranged on both sides of the fixed shaft 14. Both the first page plate 15 and the second page plate 16 have an extension portion that extends axially along the fixed shaft 14. Page 16 is connected to an arc-shaped first rack 17 and a second rack 18 via an extension. The first rack 17 and the second rack 18 are located on the side of the protrusion 9 away from the fixed shaft 14 and mesh with a main gear 19 and a secondary gear 20, respectively. The main gear 19 and the secondary gear 20 are connected by a transmission. Therefore, when the main gear 19 drives the first rack 17 to rotate upward, the main gear 19 also drives the secondary gear 20 to rotate synchronously, causing the secondary gear 20 to drive the second rack 18 to rotate upward. Thus, the first page 15 and the second page 16 can rotate upward simultaneously, forming a V-shape.

[0026] The main gear 19 and the auxiliary gear 20 are rotatably mounted on the fixed base 22 via a rotating shaft 21 to fix their positions. The fixed base 22 is vertically fixed on the side of the protrusion 9 away from the fixed shaft 14. The side of the fixed base 22 facing the main gear 19 is provided with a socket 23. A pin 24 is movably inserted through the main gear 19 and is arranged along the axial direction. The pin 24 is adapted to the socket 23. Therefore, when rotating, the pin 24 can be held to push the main gear 19 to rotate. Finally, the pin 24 is inserted into the socket 23 to fix it, thereby fixing the main gear 19 and fixing the V-shaped support formed by the first page plate 15 and the second page plate 16.

[0027] The socket 23 is embedded with a magnet, and the pin 24 is made of magnetic metal. Therefore, when the pin 24 is inserted into the socket 23, the magnetic force can prevent the pin 24 from falling out of the socket 23, making the connection more stable and easy to pull out, and facilitating shape changes.

[0028] The first rack 17 and the second rack 18 are symmetrically arranged and have the same center, which is coaxial with the axis of the fixed shaft 14, so that the first rack 17, the second rack 18, the first page plate 15, and the second page plate 16 can rotate coaxially.

[0029] The bottom of the sliding seat 8 is provided with a slider 25, which slides in conjunction with the groove 26 on the top surface of the worktable 1, thereby limiting and guiding the sliding seat 8.

[0030] A gap of 0.5-1cm is left between the bottom of slider 25 and the bottom of groove 26 to facilitate the cleaning of metal debris at the bottom of groove 26.

[0031] Working principle: When adjusting the position of the clamp, the motor in the motor box 3 provides power to drive the lead screw 4 to rotate. The two lead screw nuts 6 move synchronously in opposite directions along opposite threads, and then drive the clamp to slide on the worktable 1 through the connecting rod 7 to realize the alignment and clamping of the two sheet metal parts.

[0032] When clamping a workpiece, rotating the nut 11 can drive the pressure plate 12 to move up and down along the guide of the limiting plate 13, thereby clamping or releasing the workpiece.

[0033] When it is necessary to change the bottom shape of the fixture, the main gear 19 is rotated to drive the first rack 17 to rotate upward. At the same time, the main gear 19 also drives the secondary gear 20 to rotate synchronously, so that the secondary gear 20 drives the second rack 18 to rotate upward. Therefore, the first page plate 15 and the second page plate 16 can rotate upward simultaneously to form a V shape. Finally, the pin 24 is inserted into the insertion hole 23 on the fixed base 22 for positioning. When it is necessary to switch to a flat bottom, the pin 24 is pulled out and the main gear 19 is reset, so that the first page plate 15 and the second page plate 16 form a flat bottom.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] 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 position adjusting device for sheet metal welding, comprising a workbench (1), a support (2) is welded at the bottom of the workbench (1), characterized in that, A motor housing (3) with a built-in motor is connected to the side of the bracket (2). The motor in the motor housing (3) is connected to a lead screw (4) located below the workbench (1). The two ends of the lead screw (4) are rotatably mounted on the bottom surface of the workbench (1) through bearings (5). A lead screw nut (6) is fitted on the lead screw (4) and slidably connected to it. The two sides of the lead screw nut (6) are connected to a clamp on the workbench (1) through connecting rods (7). The clamp is slidably connected to the workbench (1).

2. The position adjusting device for sheet metal welding according to claim 1, characterized in that: The left and right halves of the lead screw (4) are respectively machined with threads of opposite directions, and two lead screw nuts (6) are respectively screwed onto the opposite threads.

3. The position adjustment device for sheet metal welding according to claim 1, characterized in that: The fixture includes a sliding seat (8) which is slidably disposed on the worktable (1). The sliding seat (8) has a protrusion (9) on the side away from the workpiece. The protrusion (9) is connected to a screw (10) that is perpendicular to it. The screw (10) is fitted with a nut (11) that is threadedly connected to it. The nut (11) passes through a pressure plate (12) above the sliding seat (8), and the bottom of the nut (11) is movably connected to the pressure plate (12). The side of the screw (10) facing the workpiece is provided with a limiting plate (13). The bottom of the limiting plate (13) is perpendicularly connected to the protrusion (9), and the top extends upward and passes through the pressure plate (12).

4. The position adjustment device for sheet metal welding according to claim 3, characterized in that: The clamp also includes an adjustment structure for switching the shape of the bottom support. The adjustment structure includes a fixed shaft (14) connected to the side of the protrusion (9). A first page plate (15) and a second page plate (16) that can be rotated are sleeved on the fixed shaft (14). The first page plate (15) and the second page plate (16) are symmetrically arranged on both sides of the fixed shaft (14). The first page plate (15) and the second page plate (16) each have an extension. The extension extends along the axial direction of the fixed shaft (14). The first page plate (15) and the second page plate (16) are respectively connected to an arc-shaped first rack (17) and a second rack (18) through the extension. The first rack (17) and the second rack (18) are located on the side of the protrusion (9) away from the fixed shaft (14) and mesh with a main gear (19) and a secondary gear (20) respectively. The main gear (19) and the secondary gear (20) are connected by transmission.

5. The position adjustment device for sheet metal welding according to claim 4, characterized in that: The main gear (19) and the secondary gear (20) are rotatably mounted on the fixed seat (22) via a rotating shaft (21). The fixed seat (22) is vertically fixed on the side of the protrusion (9) away from the fixed shaft (14). The fixed seat (22) has a socket (23) on the side facing the main gear (19). A pin (24) is movably inserted on the main gear (19) and is adapted to the socket (23).

6. The position adjustment device for sheet metal welding according to claim 5, characterized in that: The socket (23) is fitted with a magnet.

7. The position adjustment device for sheet metal welding according to claim 4, characterized in that: The first rack (17) and the second rack (18) are symmetrically arranged and have the same center, which is coaxial with the axis of the fixed shaft (14).

8. The position adjustment device for sheet metal welding according to claim 3, characterized in that: The bottom of the sliding seat (8) is provided with a slider (25), which slides in cooperation with the groove (26) on the top surface of the workbench (1).

9. A position adjustment device for sheet metal welding according to claim 8, characterized in that: A gap of 0.5-1cm is left between the bottom of the slider (25) and the bottom of the groove (26).

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