Sheet metal part welding limiting structure

Abstract

The utility model discloses a sheet metal part welding limiting structure, which belongs to the technical field of sheet metal part limiting structures, and comprises a support frame and an annular guide rail for guiding, and a positioning structure for positioning and connecting an electro-tricycle sheet metal part needing to be welded is arranged on the annular guide rail. The positioning structure comprises a clamping structure used for clamping and fixing the sheet metal part, and the clamping structure comprises a movable disc movably installed on one side of the annular guide rail and an installation frame rotationally installed on one side of the movable disc. When the sheet metal part welding fixture is used, sheet metal parts needing to be welded can be respectively arranged in the two mounting frames to be fixed, at the moment, the periphery of the connecting position of the sheet metal parts cannot be shielded at all, a worker can conveniently observe the welding condition of the connecting position, and the position and the orientation of the mounting frames can be adjusted by rotating the limiting screws. The limiting clamp is suitable for welding two sheet metal parts with different included angles, and frequent replacement of the limiting clamp is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal limiting structures, in particular to a sheet metal welding limiting structure. Background Art

[0002] Electric tricycle sheet metal parts refer to the tricycle shell components processed by sheet metal technology. These parts are usually made of thin steel plates, aluminum rods or stainless steel rods and other materials. Sheet metal parts are processed into various shapes and sizes through stamping, bending, welding and other processes to meet the structural support and protection needs of the tricycle.

[0003] In the prior art, during the welding process, the frame rods in the sheet metal parts of electric tricycles usually need to be placed on a workbench and fixed with a limit clamp. However, the existing clamps have limited angles for clamping sheet metal parts and can only adapt to the welding of sheet metal parts at a single angle. It is necessary to replace clamps with different angles, which is relatively cumbersome. Frequent replacement of clamps will also increase operation time and labor costs. Utility Model Content

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a sheet metal welding limiting structure to solve some or all of the problems in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A sheet metal welding limiting structure, comprising:

[0007] Support frame;

[0008] Annular guide rail for guiding;

[0009] The positioning structure is arranged on the annular guide rail and is used to position and connect the sheet metal parts of the electric tricycle that need to be welded;

[0010] Wherein, the positioning structure includes a clamping structure for clamping and fixing the sheet metal part and a limiting structure for adjusting the position of the clamping structure on the annular guide rail.

[0011] The angle adjustment structure is arranged on the clamping structure and is used to adjust the angle of the clamping structure.

[0012] Preferably, the clamping structure comprises:

[0013] A movable plate, movably mounted on one side of the annular guide rail;

[0014] An installation frame is rotatably installed on one side of the movable disk;

[0015] A U-shaped slide bar is slidably mounted on the inner wall of the mounting frame;

[0016] A pressure plate is arranged on one side of the U-shaped slide bar and is slidably mounted on the inner wall of the mounting frame;

[0017] An adjustment component is arranged on the U-shaped slide bar and is used to adjust the position of the U-shaped slide bar;

[0018] A guide assembly is arranged on the movable disk and is used to guide the moving direction of the movable disk;

[0019] Among them, the inner wall of the installation frame is provided with a material placement trough for placing sheet metal materials.

[0020] Preferably, the adjustment component comprises:

[0021] Adjust the screw, which is rotated and installed on one side of the mounting frame;

[0022] The adjusting screw hole is arranged on the inner wall of the U-shaped slide bar, and the adjusting screw thread is installed in the adjusting screw hole.

[0023] Preferably, the guide assembly comprises:

[0024] An annular groove is provided on the inner wall of the annular guide rail;

[0025] An arc-shaped slider is arranged on one side of the movable disk;

[0026] The arc-shaped slider is slidably installed in the annular groove to limit the moving direction of the arc-shaped slider.

[0027] Preferably, the clamping structure further includes a rubber pad 1 arranged on the inner wall of the mounting frame and a rubber pad 2 arranged on one side of the pressure plate, the rubber pad 1 corresponding to the rubber pad 2, and is used to protect the sheet metal when clamping it.

[0028] Preferably, the limiting structure includes:

[0029] L-shaped mounting plate, arranged on one side of the movable plate;

[0030] Limit screw, threadedly mounted on the inner wall of the L-shaped mounting plate;

[0031] A rubber stop block is arranged at one end of the limiting screw;

[0032] The rubber block contacts the inner wall of the annular guide rail and is used to press against the inner wall of the annular guide rail.

[0033] Preferably, the angle adjustment structure includes:

[0034] The rotating shaft is arranged on one side of the mounting frame and provides a fulcrum for the rotation of the mounting frame;

[0035] A gear ring is sleeved on the movable disc;

[0036] an adjustment plate, in contact with the mounting frame;

[0037] The limiting tooth block is arranged on the adjusting plate, and the limiting tooth block is engaged with the gear ring;

[0038] A guide rod is arranged on the mounting frame and is slidably mounted on the adjustment plate to guide the movement of the adjustment plate;

[0039] A stopper is arranged at one end of the guide rod and located on one side of the adjustment plate to prevent the adjustment plate from slipping;

[0040] Wherein, the rotating shaft is rotatably mounted on the inner wall of the movable disk.

[0041] Preferably, the angle adjustment structure further includes a spring sleeved on the guide rod, with both ends of the spring respectively mounted on the side where the adjustment plate and the stop block are close to each other, for driving the moving adjustment plate to reset.

[0042] The beneficial effects of the present invention are:

[0043] When the utility model is used, the two electric tricycle sheet metal parts that need to be welded can be placed in the two mounting frames respectively so that their connections are aligned, and then the sheet metal parts can be clamped by rotating the adjusting screw. At this time, the staff can hold the welding gun to perform welding operations on the sheet metal parts. During the welding process, the connection of the sheet metal parts will not be blocked around, so that the staff can observe the welding conditions of the connection parts, and the rubber block can be driven to break away from the pressure on the annular guide rail by rotating the limit screw. At this time, the position and direction of the mounting frame can be adjusted so that it can clamp the sheet metal parts to different angles. It is suitable for welding two sheet metal parts with different angles, avoiding frequent replacement of the limit clamps.

[0044] The utility model can release the angle restriction on the movable disk and the mounting frame by pulling the adjustment plate. At this time, rotating the mounting frame can change the clamping angle of the sheet metal part, and can realize welding operations on two sheet metal parts with different bending angles, thereby being able to adapt to different welding situations and improving the applicability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0046] Figure 1 A schematic structural diagram of a sheet metal welding limiting structure provided by an embodiment of the present utility model;

[0047] Figure 2 A schematic diagram of the structure of a sheet metal welding limiting structure provided by an embodiment of the present invention after the installation frame is rotated;

[0048] Figure 3 A schematic diagram of an installation frame structure of a sheet metal welding limiting structure provided by an embodiment of the present utility model;

[0049] Figure 4 A schematic diagram of a movable disk structure of a sheet metal welding limiting structure provided in an embodiment of the present utility model.

[0050] Description of reference numerals:

[0051] 1. Support frame; 2. Annular guide rail; 3. Movable disk; 301. Mounting frame; 302. U-shaped slide bar; 303. Pressure plate; 304. Adjusting screw; 305. Adjusting screw hole; 306. Rubber pad 1; 307. Rubber pad 2; 308. Annular groove; 309. Arc-shaped slider; 4. L-shaped mounting plate; 401. Limiting screw; 402. Rubber stop block; 5. Rotating shaft; 501. Gear ring; 502. Adjusting plate; 503. Limiting gear block; 504. Guide rod; 505. Stop block; 506. Spring. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0053] Example 1:

[0054] like Figures 1 to 4 As shown, the utility model provides a sheet metal welding limiting structure, comprising: a support frame 1 and an annular guide rail 2 for guiding.

[0055] In order to be able to fix the connection of the electric tricycle sheet metal parts, and at the same time prevent the connection points from being blocked and affecting the observation of the staff, and avoid affecting the welding effect, a positioning structure for positioning and connecting the electric tricycle sheet metal parts that need to be welded is arranged on the annular guide rail 2, and the positioning structure includes a clamping structure for clamping and fixing the sheet metal parts.

[0056] The cam 303 is fixed on the upper surface of the upper surface of the upper surface of the lower surface of the upper surface of the lower surface of the upper surface of the lower surface of the upper surface of the lower surface of the upper surface of the lower surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface

[0057] Specifically, the adjustment component includes an adjustment screw 304 rotatably installed on one side of the mounting frame 301, an adjustment screw hole 305 opened on the inner wall of the U-shaped slide bar 302, and the adjustment screw 304 is threadedly installed in the adjustment screw hole 305. During the rotation of the adjustment screw 304, the U-shaped slide bar 302 will be driven to slide on the inner wall of the mounting frame 301 by cooperating with the thread of the adjustment screw hole 305.

[0058] Specifically, the guide assembly includes an annular groove 308 opened on the inner wall of the annular guide rail 2, and an arc-shaped slider 309 arranged on one side of the movable disk 3. The arc-shaped slider 309 is slidably installed in the annular groove 308 and is used to limit the moving direction of the arc-shaped slider 309. When the movable disk 3 moves, it will drive the arc-shaped slider 309 to slide in the annular groove 308 on the inner wall of the annular guide rail 2, thereby limiting the moving direction of the movable disk 3.

[0059] Among them, the clamping structure also includes a rubber pad 306 arranged on the inner wall of the mounting frame 301 and a rubber pad 307 arranged on one side of the pressure plate 303, which are used to protect the sheet metal parts when clamping them. The rubber pad 306 corresponds to the rubber pad 307. By respectively arranging the rubber pad 306 in the placement groove and the rubber pad 307 on the pressure plate 303, damage to the sheet metal parts can be avoided when clamping them.

[0060] Example 2:

[0061] On the basis of Example 1, in order to be able to weld two sheet metal parts with different angles, a limiting structure for adjusting the position of the clamping structure on the annular guide rail 2 is arranged on the clamping structure.

[0062] Among them, the limiting structure includes an L-shaped mounting plate 4 arranged on one side of the movable disk 3, a limiting screw 401 threadedly installed on the inner wall of the L-shaped mounting plate 4, and a rubber block 402 arranged at one end of the limiting screw 401 for pressing against the inner wall of the annular guide rail 2. The rubber block 402 contacts the inner wall of the annular guide rail 2. Rotating the limiting screw 401 at the corresponding position can drive the rubber block 402 to break away from the extrusion of the inner wall of the annular guide rail 2. At this time, the position restriction of the L-shaped mounting plate 4 and the movable disk 3 can be released to push the movable disk 3, and the movable disk 3 will drive the mounting frame 301 to move.

[0063] Example 3:

[0064] On the basis of Example 1, in order to be able to weld sheet metal parts with different bending angles, an angle adjustment structure for adjusting the angle of the clamping structure is arranged on the clamping structure.

[0065] Among them, the angle adjustment structure includes a rotating shaft 5 arranged on one side of the mounting frame 301 and providing a fulcrum for the rotation of the mounting frame 301, a gear ring 501 sleeved on the movable disk 3, an adjusting plate 502 in contact with the mounting frame 301, a limiting tooth block 503 arranged on the adjusting plate 502, the limiting tooth block 503 meshing with the gear ring 501, a guide rod 504 arranged on the mounting frame 301 to guide the movement of the adjusting plate 502, the guide rod 504 is slidably mounted on the adjusting plate 502, and a stopper 505 is arranged at one end of the guide rod 504 to prevent the adjusting plate 502 from slipping off, the stopper 505 is located on one side of the adjusting plate 502, the rotating shaft 5 is rotatably mounted on the inner wall of the movable disk 3, and pulling the adjusting plate 502 at the corresponding position will drive the limiting tooth block 503 to disengage from the gear ring 501. At this time, the angle restriction of the mounting frame 301 can be released, and then the mounting frame 301 can be rotated according to the bending angle of the sheet metal.

[0066] Among them, the angle adjustment structure also includes a spring 506 that is sleeved on the guide rod 504 and is used to drive the moving adjustment plate 502 to reset. The two ends of the spring 506 are respectively installed on the side where the adjustment plate 502 and the stop block 505 are close to each other. When the adjustment plate 502 moves, it will squeeze the spring 506 through cooperation with the stop block 505, so that the spring 506 is compressed to store energy. When the adjustment plate 502 is released, the spring 506 in the compressed state will be released and push the adjustment plate 502 to move and reset.

[0067] Working principle:

[0068] When the screw 304 is rotated, the adjusting screw 304 will drive the U-shaped slide bar 302 to slide on the inner wall of the mounting frame 301 through the threaded engagement with the adjusting screw hole 305. When the U-shaped slide bar 302 slides, the pressing plate 303 will be driven close to the sheet metal parts. Finally, the sheet metal parts can be clamped in the placement grooves on the inner wall of the mounting frame 301. By arranging rubber pads 1 306 and rubber pads 2 307 in the placement grooves and on the pressing plate 303 respectively, damage to the sheet metal parts can be avoided when clamping the sheet metal parts. After clamping, the connection of the sheet metal parts can be welded. During the welding process, the connection of the sheet metal parts is in a suspended state and will not be blocked by the desktop or other components. When two sheet metal parts with different angles need to be welded, the alignment can be rotated. After adjustment, the limiting screw 401 can be rotated in the opposite direction to drive the rubber block 402 to press against the inner wall of the annular guide rail 2 again, thereby re-limiting the position of the movable plate 3 and the mounting frame 301 for welding.

[0069] When it is necessary to weld sheet metal parts with different bending angles, you can refer to the sheet metal form in the annular guide rail 2 and pull the adjustment plate 502 at the corresponding position. When the adjustment plate 502 moves, it will slide on the two guide rods 504, thereby limiting the moving direction of the adjustment plate 502. When the adjustment plate 502 moves, it will squeeze the spring 506 through the cooperation with the stop block 505, so that the spring 506 is compressed and stores energy. The continuously sliding adjustment plate 502 will drive the limiting tooth block 503 to disengage from the gear ring 501, and the mounting frame can be released at this time. 301, and then the mounting frame 301 can be rotated according to the bending angle of the sheet metal. The mounting frame 301 will drive the rotating shaft 5 to rotate on the inner wall of the movable disk 3, thereby enabling the mounting frame 301 to achieve the rotation effect. After adjusting the angle of the mounting frame 301, release the adjustment plate 502. At this time, the spring 506 in the compressed state will be released and push the adjustment plate 502 to move and reset. The reset adjustment plate 502 will drive the limiting tooth block 503 to re-engage with the gear ring 501, thereby re-limiting the angle of the mounting frame 301.

[0070] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A sheet metal welding limiting structure, characterized in that: include: Support frame (1); An annular guide rail (2) for guiding; A positioning structure is arranged on the annular guide rail (2) and is used for positioning and connecting the sheet metal parts of the electric tricycle that need to be welded; Wherein, the positioning structure comprises a clamping structure for clamping and fixing the sheet metal part and a limiting structure for adjusting the position of the clamping structure on the annular guide rail (2); The angle adjustment structure is arranged on the clamping structure and is used to adjust the angle of the clamping structure.

2. A sheet metal welding limiting structure according to claim 1, characterized in that: The clamping structure comprises: A movable plate (3) is movably mounted on one side of the annular guide rail (2); A mounting frame (301) is rotatably mounted on one side of the movable disk (3); A U-shaped slide bar (302) is slidably mounted on the inner wall of the mounting frame (301); A pressing plate (303) is arranged on one side of the U-shaped slide bar (302), and the pressing plate (303) is slidably mounted on the inner wall of the mounting frame (301); an adjustment component, arranged on the U-shaped slide bar (302) and used for adjusting the position of the U-shaped slide bar (302); A guide assembly, arranged on the movable disk (3), for guiding the moving direction of the movable disk (3); The inner wall of the mounting frame (301) is provided with a material placement trough for placing sheet metal materials.

3. A sheet metal welding limiting structure according to claim 2, characterized in that: The adjustment component includes: An adjusting screw (304) is rotatably mounted on one side of the mounting frame (301); The adjusting screw hole (305) is provided on the inner wall of the U-shaped slide bar (302), and the adjusting screw rod (304) is threadedly installed in the adjusting screw hole (305).

4. The sheet metal welding limiting structure according to claim 2, characterized in that: The guide assembly comprises: An annular groove (308) is formed on the inner wall of the annular guide rail (2); An arc-shaped slider (309) is arranged on one side of the movable disk (3); The arc-shaped slider (309) is slidably mounted in the annular groove (308) to limit the moving direction of the arc-shaped slider (309).

5. The sheet metal welding limiting structure according to claim 1, characterized in that: The clamping structure further includes a rubber pad 1 (306) arranged on the inner wall of the mounting frame (301) and a rubber pad 2 (307) arranged on one side of the pressure plate (303). The rubber pad 1 (306) corresponds to the rubber pad 2 (307) and is used to protect the sheet metal when clamping it.

6. The sheet metal welding limiting structure according to claim 1, characterized in that: The limiting structure includes: An L-shaped mounting plate (4) is arranged on one side of the movable plate (3); A limiting screw (401) is threadedly mounted on the inner wall of the L-shaped mounting plate (4); A rubber stopper (402) is arranged at one end of the limiting screw (401); The rubber block (402) contacts the inner wall of the annular guide rail (2) and is used to press against the inner wall of the annular guide rail (2).

7. The sheet metal welding limiting structure according to claim 1, characterized in that: The angle adjustment structure includes: A rotating shaft (5) is arranged on one side of the mounting frame (301) and provides a fulcrum for the rotation of the mounting frame (301); A gear ring (501) is sleeved on the movable disc (3); An adjustment plate (502) in contact with the mounting frame (301); A limiting tooth block (503) is arranged on the adjustment plate (502), and the limiting tooth block (503) is engaged with the gear ring (501); A guide rod (504) is arranged on the mounting frame (301), and the guide rod (504) is slidably mounted on the adjustment plate (502) to guide the movement of the adjustment plate (502); A stopper (505) is arranged at one end of the guide rod (504), and the stopper (505) is located on one side of the adjustment plate (502) to prevent the adjustment plate (502) from slipping; The rotating shaft (5) is rotatably mounted on the inner wall of the movable disk (3).

8. The sheet metal welding limiting structure according to claim 1, characterized in that: The angle adjustment structure further includes a spring (506) sleeved on the guide rod (504), with both ends of the spring (506) respectively mounted on the side where the adjustment plate (502) and the stopper (505) are close to each other, for driving the moving adjustment plate (502) to reset.

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