A functional chair welding fixture

Abstract

This utility model relates to the technical field of welding fixtures for functional chairs, and in particular to a welding fixture for functional chairs, comprising a base and a support. The top of the base is fixedly connected to the bottom of the support. The top of the support has through-holes on both the front and rear sides. The bottom of the support has upright plates fixedly connected to both the front and rear sides. The inner wall of the upright plate is connected to a clamping structure. The top of the support has a vertical cylinder fixedly connected to it. A second handle, carrying a first screw, rotates inward through a first straight plate. The rotating first screw moves a second straight plate inward, so that the second straight plate, in conjunction with a square plate, fixes the functional chair legs. When the processing of the legs generates vibration, a nut can pass through the second handle and be threaded onto the outer wall of the first screw. Then, the outer wall of the nut abuts against the outer wall of the first straight plate. This eliminates the need for repeated disassembly and reassembly of the mounting plate, reducing the difficulty of using the welding fixture for functional chairs and saving operation time.

Description

Technical Field

[0001] This utility model relates to the technical field of welding fixtures for functional chairs, specifically a welding fixture for functional chairs. Background Technology

[0002] Functional chair welding fixtures are specialized equipment used to assist welding operations in the production of functional chairs. Their core function is to solve the problems of precision, efficiency, safety and consistency in the welding process.

[0003] The welding components of functional chairs are mostly irregularly shaped tubes or plates, and they need to be precisely matched with the hardware to be assembled later. If the dimensions are off after welding, it will lead to functional failure. The workpiece is fixed from three directions (up, down, left, right, and front) by cylinders, bolts or quick clamps to avoid deformation or displacement of the workpiece due to high temperature during welding. The fixture has all positioning points preset. The worker only needs to put the workpiece into the fixture and start the clamping device to weld directly without measuring each time. However, in the use of functional chair welding fixtures, the fixed plates and base are separate. When welding functional chairs, the fixed plates need to be installed one by one. At the same time, the position needs to be adjusted according to the specifications of the functional chair before the functional chair is fixed. This increases the difficulty of using functional chair welding fixtures and increases the operation time. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of increased difficulty in using welding fixtures for functional chairs and increased operation time for welding fixtures for functional chairs, and to propose a welding fixture for functional chairs.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a functional chair welding fixture, including a base and a support. The top of the base is fixedly connected to the bottom of the support. The top of the support has through holes on the front and rear sides respectively. The bottom of the support has upright plates fixedly connected to the front and rear sides respectively. The inner wall of the upright plates is connected to a clamping structure. The top of the support is fixedly connected to a vertical cylinder. The inner wall of the vertical cylinder is connected to a support structure.

[0007] This feature: The top left and right sides of the base are fixedly connected to the bottom left and right sides of the bracket, providing support for the bracket.

[0008] Preferably, the clamping structure includes a double-ended stud and a first handle. The outer walls of the double-ended stud are rotatably connected to the inner walls of two vertical plates on their front and rear sides, respectively. The front side of the double-ended stud is fixedly connected to the rear end face of the first handle. A vertical plate is threadedly connected to the outer wall of the double-ended stud. A horizontal plate is fixedly connected to the top of the vertical plate. A square plate is fixedly connected to the inner side of the outer wall of the horizontal plate. A first vertical plate is fixedly connected to the outer side of the horizontal plate. A first screw is threadedly connected to the outer wall of the first vertical plate. A second vertical plate is rotatably connected to the inner side of the outer wall of the first screw. A second handle is fixedly connected to the outer side of the first screw.

[0009] This setting: The nut is fitted onto the first handle, so that the nut is threaded into the outer wall of the first handle until the outer wall of the nut is pressed against the outer wall of the front upright plate, thus fixing the double-ended stud.

[0010] Preferably, the bottom of the second straight plate is attached to the top of the horizontal plate, and the outer wall of the vertical plate is slidably connected to the inner wall of the opening.

[0011] This setting: After the double-ended stud rotates, it moves the vertical plate back and forth along the inner wall of the opening. The opening restricts the vertical plate and prevents it from rotating.

[0012] Preferably, a first vertical rod is fixedly connected to the top of the bracket, and a second vertical rod is slidably connected to the inner wall of the first vertical rod.

[0013] With this configuration, the second vertical rod slides up and down through the inner wall of the first vertical rod under force, while the second vertical rod cannot detach from the first vertical rod. At this time, the first and second vertical rods form a telescopic rod.

[0014] Preferably, the support structure includes a second screw and a top plate. The outer wall of the second screw is threadedly connected to the inner wall of the vertical cylinder. The top of the outer wall of the second screw is rotatably connected to the bottom of the top plate. A grooved plate is fixedly connected to the top of the top plate. A third screw is rotatably connected to the top circular opening of the grooved plate. A pressure plate is threadedly connected to the outer wall of the third screw. Round rods are fixedly connected to the front and rear sides of the bottom of the pressure plate, respectively.

[0015] This feature includes: a protruding ridge at the top of the third screw, which can form a force point with the hand, making it easier to rotate the third screw; and a protruding ridge on the upper part of the outer wall of the second screw, which can also form a force point with the hand, making it easier to rotate the second screw.

[0016] Preferably, the lower part of the outer wall of the round rod is inserted into the top round opening of the groove plate.

[0017] This feature allows the round rod to slide up and down through the round opening at the top of the slot plate, thus restricting the pressure plate and preventing it from rotating.

[0018] Preferably, the bottom of the top plate is fixedly connected to the top of the second vertical rod.

[0019] This feature: After the second vertical rod is connected to the top plate, the second vertical rod restricts the top plate and prevents it from rotating at an angle when moving up and down.

[0020] The functional chair welding fixture proposed in this utility model has the following advantages: By gripping the first handle in the clamping structure and rotating the double-ended stud, the rotating stud causes the vertical plate to move outward through the inner wall of the opening, increasing the distance between the two vertical plates. Then, a nut is fitted onto the first handle, connecting the nut to the threaded outer wall of the first handle until the outer wall of the nut abuts against the outer wall of the front vertical plate. Next, the outer wall of the functional chair leg fits against the outer wall of the square plate, while the bottom of the functional chair leg fits against the top of the horizontal plate. Then, the second handle, carrying the first screw, rotates inward through the first vertical plate. The rotating first screw moves the second vertical plate inward, allowing the second vertical plate to cooperate with the square plate to fix the functional chair leg. When vibration occurs during the processing of the leg, the nut can pass through the second handle and connect to the threaded outer wall of the first screw, then the outer wall of the nut abuts against the outer wall of the first vertical plate. This eliminates the need for repeated disassembly and reassembly of the mounting plate, reducing the difficulty of using the functional chair welding fixture and saving operation time. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 for Figure 1 A schematic diagram showing the connection structure between the double-ended stud, the first handle, and the vertical plate;

[0023] Figure 3 for Figure 1 A schematic diagram showing the connection relationship between the middle channel plate, the third screw, and the pressure plate;

[0024] Figure 4 for Figure 1 A schematic diagram showing the connection relationship between the middle horizontal plate, the square plate, and the first vertical plate;

[0025] Figure 5 for Figure 1 A schematic diagram of the structure of A in the middle;

[0026] Figure 6 for Figure 1 A schematic diagram of the structure of B in the middle.

[0027] In the diagram: 1. Base; 2. Clamping structure; 201. Double-ended stud; 202. First handle; 203. Vertical plate; 204. Horizontal plate; 205. Square plate; 206. First vertical plate; 207. First screw; 208. Second vertical plate; 209. Second handle; 3. Support structure; 301. Second screw; 302. Top plate; 303. Groove plate; 304. Third screw; 305. Pressure plate; 306. Round rod; 4. Vertical plate; 5. Through opening; 6. First vertical rod; 7. Second vertical rod; 8. Vertical cylinder; 9. Bracket. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] Please see Figure 1-6 In this embodiment, a functional chair welding fixture includes a base 1 and a support 9. The top of the base 1 is fixedly connected to the bottom of the support 9, and the left and right sides of the top of the base 1 are fixedly connected to the left and right sides of the bottom of the support 9, which provides support for the support 9 and allows the bottom of the support 9 to be installed in a suspended form. The front and rear sides of the top of the support 9 are respectively machined with openings 5, and the front and rear sides of the bottom of the support 9 are respectively fixedly connected with upright plates 4. The inner wall of the upright plates 4 is connected with a clamping structure 2. The top of the support 9 is fixedly connected with a vertical cylinder 8, and the inner wall of the vertical cylinder 8 is connected with a support structure 3.

[0030] The clamping structure 2 includes a double-ended stud 201 and a first handle 202. The outer walls of the double-ended stud 201 are rotatably connected to the inner walls of two vertical plates 4 on their front and rear sides, respectively. The double-ended stud 201 rotates under force through bearings on the inner walls of the vertical plates 4. The front of the double-ended stud 201 is fixedly connected to the rear end face of the first handle 202, which facilitates the rotation of the double-ended stud 201. A vertical plate 203 is threadedly connected to the outer wall of the double-ended stud 201. A horizontal plate 204 is fixedly connected to the top of the vertical plate 203. A square plate 205 is fixedly connected to the inner side of the outer wall of the horizontal plate 204. A first vertical plate 206 is fixedly connected to the outer side of the horizontal plate 204. The outer wall of the first straight plate 206 is threaded with a first screw 207. The first screw 207 rotates back and forth through the outer wall of the first straight plate 206 under force. The inner side of the outer wall of the first screw 207 is rotatably connected to a second straight plate 208. The inner side of the outer wall of the first screw 207 rotates through a bearing in the outer wall of the second straight plate 208 under force. The outer side of the first screw 207 is fixed with a second handle 209, which facilitates the rotation of the first screw 207. The bottom of the second straight plate 208 is in contact with the top of the horizontal plate 204. The outer wall of the vertical plate 203 is slidably connected to the inner wall of the opening 5. The vertical plate 203 slides back and forth through the inner wall of the opening 5 under force.

[0031] The first handle 203 is gripped in the clamping structure 2, causing the double-ended stud 201 to rotate. The rotating double-ended stud 201 causes the vertical plate 203 to move outward through the inner wall of the through-hole 5, increasing the distance between the two vertical plates 203. Then, the nut is put on the first handle 202, making the nut threaded into the outer wall of the first handle 202 until the outer wall of the nut abuts against the outer wall of the front vertical plate 4. Next, the outer wall of the functional chair leg is brought into contact with the outer wall of the square plate 205, while the bottom of the functional chair leg is brought into contact with the top of the horizontal plate 204. Then, the second handle 209, along with the first... The screw 207 rotates inward through the first straight plate 206. The rotating screw 207 moves the second straight plate 208 inward, so that the second straight plate 208 cooperates with the square plate 205 to fix the functional chair legs. When the processing of the legs will cause vibration, the nut can pass through the second handle 209 and be threaded to the outer wall of the first screw 207. Then, the outer wall of the nut is pressed against the outer wall of the first straight plate 206. There is no need to repeatedly disassemble and assemble the mounting plate, which reduces the difficulty of using the functional chair welding fixture and saves the operation time of the functional chair welding fixture.

[0032] A first vertical rod 6 is fixedly connected to the top of the bracket 9. A second vertical rod 7 is slidably connected to the inner wall of the first vertical rod 6. The second vertical rod 7 slides up and down through the inner wall of the first vertical rod 6 under force. The support structure 3 includes a second screw 301 and a top plate 302. The outer wall of the second screw 301 is threadedly connected to the inner wall of the vertical cylinder 8. The second screw 301 rotates up and down through the inner wall of the vertical cylinder 8 under force. A protruding ridge is provided on the upper part of the outer wall of the second screw 301. The protruding ridge can form a force point with the hand to facilitate the rotation of the second screw 301. The top of the outer wall of the second screw 301 is rotatably connected to the bottom of the top plate 302. A grooved plate 303 is fixedly connected to the top of the top plate 302. A third screw 304 is rotatably connected to the top circular opening of the slot plate 303. The third screw 304 rotates under force through the bearing in the top circular opening of the slot plate 303. A pressure plate 305 is threadedly connected to the outer wall of the third screw 304. The top of the third screw 304 is provided with a protrusion, which can form a force point with the hand, making it easy to rotate the third screw 304. Round rods 306 are fixedly connected to the front and rear sides of the bottom of the pressure plate 305 respectively. The lower part of the outer wall of the round rod 306 is inserted into the top circular opening of the slot plate 303. The round rod 306 slides up and down through the top circular opening of the slot plate 303 under force. The bottom of the top plate 302 is fixedly connected to the top of the second vertical rod 7.

[0033] Working principle:

[0034] Functional chair welding fixtures and jigs for fixing functional chair parts:

[0035] Hold the first handle 203 and rotate the double-ended stud 201. The rotating double-ended stud 201 causes the vertical plate 203 to move outward through the inner wall of the through-hole 5, increasing the distance between the two vertical plates 203. Then, the nut is put on the first handle 202, and the nut is threadedly connected to the outer wall of the first handle 202 until the outer wall of the nut is pressed against the outer wall of the front vertical plate 4. Next, the outer wall of the functional chair leg is pressed against the outer wall of the square plate 205, and the bottom of the functional chair leg is pressed against the top of the horizontal plate 204. Then, the second handle 209 rotates the first screw 207 inward through the first straight plate 206. The rotating first screw 207 moves the second straight plate 208 inward, so that the second straight plate 208 cooperates with the square plate 205 to fix the functional chair leg. When the processing of the leg will cause vibration, the nut can be passed through the second handle 209 and threadedly connected to the outer wall of the first screw 207. Then, the outer wall of the nut is pressed against the outer wall of the first straight plate 206.

[0036] Next, the second screw 301 rotates upward through the inner wall of the vertical cylinder 8. The rotating second screw 301 carries the top plate 302 upward (as the top plate 302 moves upward, it carries the second vertical rod 7 upward through the inner wall of the first vertical rod 6; the cooperation of the first vertical rod 6 and the second vertical rod 7 restricts the top plate 302, preventing it from rotating). The top plate 302 is then moved to its highest position. Next, the functional chair frame is placed into the slot plate 303. Then, the third screw 304 rotates, carrying the pressure plate 305 downward (as the pressure plate 305 moves downward under force, it carries the round rod 306 through…). The top circular opening of the groove plate 303 slides downwards, and the circular rod 306 restricts the pressure plate 305 to prevent it from rotating. The pressure plate 305 moves downwards, and the groove plate 303 presses the beam of the functional chair against each other. Then, the second screw 301 rotates in the opposite direction through the inner wall of the vertical cylinder 8, causing the second screw 301 to move the top plate 302 downwards. The moving top plate 302, together with the groove plate 303, moves the fixed functional chair beam downwards, so that the bottom connection of the functional chair beam fits against the connection of the fixed functional chair legs. Finally, the connection between the functional chair beam and the functional chair legs is fixed with screws.

[0037] Functional chair welding fixtures and tooling; functional chair disassembly:

[0038] The third screw 304 is rotated in the opposite direction. The rotating third screw 304 moves the pressure plate 305 upward, causing the pressure plate 305 to detach from the functional chair beam. Then, multiple nuts are rotated outward, causing the nuts to detach from the outer wall of the first straight plate 206 and the upright plate 4. Subsequently, the second handle 209 rotates the first screw 207 outward through the first straight plate 206. The rotating first screw 207 moves the second straight plate 208 outward. At this time, the second straight plate 208 detaches from the functional chair legs. Then, the functional chair is lifted upward. At this time, the beam above the functional chair detaches from the groove plate 303. Then, the functional chair is rotated at an angle and then lifted upward, completing the disassembly of the functional chair.

[0039] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A functional chair welding fixture, comprising a base (1) and a support (9), characterized in that: The top of the base (1) is fixedly connected to the bottom of the bracket (9). The top of the bracket (9) has openings (5) on the front and back sides respectively. The bottom of the bracket (9) has upright plates (4) fixedly connected to the front and back sides respectively. The inner wall of the upright plate (4) is connected to a clamping structure (2). The top of the bracket (9) is fixedly connected to a vertical cylinder (8). The inner wall of the vertical cylinder (8) is connected to a support structure (3).

2. The functional chair welding fixture according to claim 1, characterized in that: The clamping structure (2) includes a double-ended stud (201) and a first handle (202). The outer walls of the double-ended stud (201) are rotatably connected to the inner walls of two vertical plates (4) on the front and rear sides respectively. The front of the double-ended stud (201) is fixedly connected to the rear end face of the first handle (202). The outer wall of the double-ended stud (201) is threadedly connected to a vertical plate (203). The top of the vertical plate (203) is fixedly connected to a horizontal plate (204). The inner side of the outer wall of the horizontal plate (204) is fixedly connected to a square plate (205). The outer side of the horizontal plate (204) is fixedly connected to a first straight plate (206). The outer wall of the first straight plate (206) is threadedly connected to a first screw (207). The inner side of the outer wall of the first screw (207) is rotatably connected to a second straight plate (208). The outer side of the first screw (207) is fixedly connected to a second handle (209).

3. The functional chair welding fixture according to claim 2, characterized in that: The bottom of the second straight plate (208) is attached to the top of the horizontal plate (204), and the outer wall of the vertical plate (203) is slidably connected to the inner wall of the opening (5).

4. The functional chair welding fixture according to claim 1, characterized in that: The top of the bracket (9) is fixedly connected to a first vertical rod (6), and the inner wall of the first vertical rod (6) is slidably connected to a second vertical rod (7).

5. The functional chair welding fixture according to claim 1, characterized in that: The support structure (3) includes a second screw (301) and a top plate (302). The outer wall of the second screw (301) is threadedly connected to the inner wall of the vertical cylinder (8). The top of the outer wall of the second screw (301) is rotatably connected to the bottom of the top plate (302). A groove plate (303) is fixedly connected to the top of the top plate (302). A third screw (304) is rotatably connected to the top round opening of the groove plate (303). A pressure plate (305) is threadedly connected to the outer wall of the third screw (304). Round rods (306) are fixedly connected to the front and rear sides of the bottom of the pressure plate (305).

6. The functional chair welding fixture according to claim 5, characterized in that: The lower part of the outer wall of the round rod (306) is inserted into the top round opening of the groove plate (303).

7. The functional chair welding fixture according to claim 5, characterized in that: The bottom of the top plate (302) is fixedly connected to the top of the second vertical rod (7).

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