Swivel chair chassis welding device
By designing a welding device that includes a base, robotic arm, welding torch, rotating table, lifting cylinder, and adjustment mechanism, the problem of fixing multiple supports during the welding process of the swivel chair chassis was solved, achieving efficient and precise welding results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-10
- Publication Date
- 2026-03-10
AI Technical Summary
In the current swivel chair chassis welding process, the welding of multiple brackets requires repeated fixing, which is laborious and affects accuracy, thus reducing production efficiency.
The welding device includes a base, robotic arm, welding torch, rotating table, lifting cylinder, guide rail, adjustment mechanism and extrusion mechanism. The robotic arm drives the welding torch to perform multi-angle spot welding. Combined with the actions of the lifting cylinder and adjustment cylinder, it realizes stable splicing and all-round welding of the bracket and pipe.
It improves welding precision, reduces manpower consumption, and increases welding efficiency.
Smart Images
Figure CN223981370U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to swivel chair chassis processing technical field, concretely is a swivel chair chassis welding device. BACKGROUND
[0002] Swivel chair chassis is the support of chair, generally adopts metal material to make, the most common is movable work chair chassis as a kind of metal product, usually adopts the welding processing technology of common in industry, and the chassis is usually welded on a pipe frame by multiple supports, and universal wheels are installed at the bottom of each support.
[0003] At present, when the chassis is welded, due to the setting of multiple supports, welding needs to be fixed repeatedly, and manual welding is mostly used, due to the special shape, welding is relatively laborious, cannot guarantee the welding precision, and reduces the production efficiency. UTILITY MODEL CONTENTS
[0004] The utility model is provided to solve the problems in the above background art.
[0005] To achieve the above object, the utility model provides the following technical scheme: including base, the one side of base is connected with connecting seat, the top of connecting seat is connected with mechanical arm, one end of mechanical arm is connected with welding torch, the bottom of mechanical arm is connected with controller, the inside of base is rotatably provided with rotating table, the top of rotating table is connected with lifting cylinder, the top of lifting cylinder is connected with mounting table, the outer circle of mounting table is rotatably provided with multiple guide rails, the top of guide rail is slidably provided with adjusting mechanism, the bottom of guide rail is connected with adjusting cylinder, the top of mounting table is connected with extrusion mechanism.
[0006] Preferably, the inside wall of base is connected with servo motor at the bottom, the output end of servo motor is connected with rotating table, and the one side of base is provided with heat dissipation hole corresponding to servo motor.
[0007] Preferably, the two ends of lifting cylinder and adjusting cylinder are connected with universal joint.
[0008] Preferably, the adjusting mechanism comprises strip-shaped sliding block slidably arranged on the inner side of guide rail, the bottom of strip-shaped sliding block is connected with screw rod, the bottom of screw rod penetrates guide rail and is connected with nut, one end of nut is connected with abutment, and the top of strip-shaped sliding block is connected with fixing unit.
[0009] Preferably, the fixing unit comprises support clamp connected with the top of strip-shaped sliding block, the two sides of inner wall of support clamp are connected with anti-skid pad, the top of support clamp is provided with clamping groove, and the inside of clamping groove is connected with fixed clamping frame.
[0010] Preferably, the extrusion mechanism includes a bidirectional screw rotatably mounted on the top of the mounting platform, with movable components threaded to both ends of the bidirectional screw. Multiple sets of connecting rods are rotatably mounted on the outer surface of each movable component, and a push plate is connected to the other end of each connecting rod.
[0011] Preferably, the top of the mounting platform is provided with a plurality of sector-shaped limiting blocks, which are located between each push plate.
[0012] In summary, this application includes the following beneficial technical effects:
[0013] The chassis support and chassis components can be stably spliced through the extrusion mechanism, adjustment mechanism and fixing unit. The robotic arm drives the welding gun to perform multiple spot welding on the weld seam to complete the pre-fixation. Then the lifting cylinder lifts up the pre-fixed chassis, which can fully display the chassis, making it easier to complete the welding finishing work, effectively reducing manpower consumption, ensuring welding accuracy and improving welding efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a swivel chair chassis welding device according to the present invention;
[0015] Figure 2 This is a side sectional view of a welding device for a swivel chair chassis according to the present invention.
[0016] Figure 3 for Figure 2 Enlarged structural diagram of section A;
[0017] Figure 4 This is a schematic diagram of the adjustment mechanism and fixing unit in a swivel chair chassis welding device of this utility model.
[0018] In the diagram: 1. Base; 2. Connecting seat; 3. Robotic arm; 4. Welding torch; 5. Controller; 6. Rotary table; 7. Servo motor; 8. Lifting cylinder; 9. Mounting platform; 10. Guide rail; 11. Adjustment mechanism; 111. Strip slider; 112. Screw; 113. Nut; 114. Abutment block; 115. Bracket; 116. Anti-slip pad; 117. Slot; 118. Fixed bracket; 12. Adjustment cylinder; 13. Extrusion mechanism; 131. Bidirectional screw; 132. Moving kit; 133. Connecting rod; 134. Push plate; 14. Sector-shaped limit block. Detailed Implementation
[0019] 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.
[0020] Please see Figures 1-4 This utility model provides a technical solution: including a base 1, a connecting seat 2 connected to one side of the base 1, a robotic arm 3 connected to the top of the connecting seat 2, a welding torch 4 connected to one end of the robotic arm 3, a controller 5 connected to the bottom of the robotic arm 3, a rotating platform 6 rotatably arranged inside the base 1, a lifting cylinder 8 connected to the top of the rotating platform 6, a mounting platform 9 connected to the top of the lifting cylinder 8, and multiple sets of guide rails 10 rotatably arranged on the outer ring of the mounting platform 9. As can be seen from the attached drawings, the connection points between the guide rails 10 and the mounting platform 9 are arranged such that, in the loaded state, they can only rotate downwards and not upwards. An adjustment mechanism 11 is slidably arranged at the top of each guide rail 10, an adjustment cylinder 12 is connected to the bottom of each guide rail 10, and a pressing mechanism 13 is connected to the top of the mounting platform 9.
[0021] Reference Figure 2 As shown, a servo motor 7 is connected to the bottom of the inner wall of the base 1. The output end of the servo motor 7 is connected to the rotating table 6. A heat dissipation hole is opened on one side of the base 1 corresponding to the servo motor 7. The servo motor 7 drives the rotating table 6 to rotate inside the base 1, thereby adjusting the welding position.
[0022] Reference Figure 1 As shown, universal joints are connected to both ends of the lifting cylinder 8 and the adjusting cylinder 12. Through the extension and retraction of each 12, the transfer chassis can rotate at multiple angles. In conjunction with the rotation of the rotating table 6, the robotic arm 3 can carry the welding torch 4 to perform welding work at multiple angles.
[0023] Reference Figure 4 As shown, the adjustment mechanism 11 includes a strip slider 111 slidably disposed inside the guide rail 10. A screw 112 is connected to the bottom end of the strip slider 111. The bottom end of the screw 112 passes through the guide rail 10 and is connected to a nut 113. A stop block 114 is connected to one end of the nut 113. A fixing unit is connected to the top end of the strip slider 111. The strip slider 111 slides inside the guide rail 10 to adjust the position of the fixing unit until the fixing unit can fix the bracket to be welded, thereby ensuring the stability of the position between the chassis bracket and the pipe rack. After the adjustment is completed, the nut 113 is rotated, and the stop block 114 presses the guide rail 10 to fix the position of the fixing unit.
[0024] The fixing unit includes a bracket 115 connected to the top of the strip slider 111. Anti-slip pads 116 are connected to both sides of the inner wall of the bracket 115. A slot 117 is opened at the top of the bracket 115, and a fixing bracket 118 is connected to the slot 117. The chassis bracket is inserted into the bracket 115, or the bracket can be inserted into the bracket 115 through the opening at the top. Then the fixing bracket 118 is inserted into the slot 117. As shown in the attached figure, the inner side of the fixing bracket 118 and one end of the slot 117 are both V-shaped. As the fixing bracket 118 is pushed in, the opening of the bracket 115 can be tightly fixed. The fixing unit is then slid by the adjustment mechanism until the bracket 115 is fixed to the chassis bracket. The anti-slip pads 116 can prevent slippage during welding.
[0025] Reference Figure 3 As shown, the extrusion mechanism 13 includes a bidirectional screw 131 rotatably mounted on the top of the mounting platform 9. Both ends of the bidirectional screw 131 are threadedly connected to movable components 132. Multiple sets of connecting rods 133 are rotatably mounted on the outer surface of the movable components 132. The other end of the connecting rods 133 is connected to a push plate 134. The chassis tube is fitted onto the outside of the extrusion mechanism 13. Rotating the bidirectional screw 131 drives the two movable components 132 to move in opposite directions, thereby pushing the push plate 134 outward through the connecting rods 133 until the chassis tube is fixedly extruded, thus fixing the chassis tube from the inside.
[0026] Multiple sector-shaped limit blocks 14 are connected to the top of the mounting platform 9. The sector-shaped limit blocks 14 are located between each push plate 134. When the bidirectional screw 131 is rotated, each sector-shaped limit block 14 will restrict the position of the push plate 134, thereby restricting the moving kit 132 from rotating with the bidirectional screw 131 through the connecting rod 133, ensuring the adjustment effect.
[0027] The implementation principle of this application is as follows: In use, the chassis tubing is fitted onto the outside of the extrusion mechanism 13 and fixed. Then, each bracket is secured within the fixing unit. The position of the fixing unit is adjusted using an adjustment mechanism until the fixing unit presses and fixes the bracket. During adjustment, the weld between one end of the chassis bracket and the chassis tubing must be aligned. Finally, the nut 113 is rotated to fix the overall position. At this point, the robotic arm 3 is activated to perform multiple spot welds between the chassis bracket and the chassis tubing frame, pre-fixing the position before spot welding. By adjusting the extension and retraction of the cylinders 12, the assembled bracket can be rotated at multiple angles to expose the connection points between the bracket and the pipe fittings as much as possible, making it easier for the robotic arm 3 to carry the welding gun 4 to perform spot welding. After pre-fixing, the fixing bracket 118 is removed, and the sliding bracket clip 115 is moved to the outermost end of the guide rail 10. The lifting cylinder 8 extends through the mounting platform 9 to drive the pre-fixed chassis to rise. While rising, the bracket will detach from the bracket clip 115, and then the robotic arm 3 will drive the welding gun 4 to perform comprehensive welding on the chassis.
[0028] 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 process, method, article, or apparatus.
[0029] 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 swivel chair chassis welding device comprising a base (1), characterized in that: The base (1) is connected with a connecting seat (2) on one side, the connecting seat (2) is connected with a mechanical arm (3) at the top end, the mechanical arm (3) is connected with a welding gun (4) at one end, the mechanical arm (3) is connected with a controller (5) at the bottom end, the base (1) is rotatably provided with a rotating table (6) inside, the rotating table (6) is connected with a lifting cylinder (8) at the top end, the lifting cylinder (8) is connected with a mounting table (9) at the top end, a plurality of guide rails (10) are rotatably arranged on the outer circle of the mounting table (9), the guide rails (10) are all slidably provided with adjusting mechanisms (11) at the top end, the guide rails (10) are all connected with adjusting cylinders (12) at the bottom end, and the mounting table (9) is connected with an extrusion mechanism (13) at the top end.
2. A swivel chair base welding apparatus as defined in claim 1, wherein: The base (1) is connected with a connecting seat (2) on one side, the connecting seat (2) is connected with a mechanical arm (3) at the top end, the mechanical arm (3) is connected with a welding gun (4) at one end, the mechanical arm (3) is connected with a controller (5) at the bottom end, the base (1) is rotatably provided with a rotating table (6) inside, the rotating table (6) is connected with a lifting cylinder (8) at the top end, the lifting cylinder (8) is connected with a mounting table (9) at the top end, a plurality of guide rails (10) are rotatably arranged on the outer circle of the mounting table (9), the guide rails (10) are all slidably provided with adjusting mechanisms (11) at the top end, the guide rails (10) are all connected with adjusting cylinders (12) at the bottom end, and the mounting table (9) is connected with an extrusion mechanism (13) at the top end.
3. The swivel chair base welding apparatus of claim 1 wherein: The base (1) is connected with a connecting seat (2) on one side, the connecting seat (2) is connected with a mechanical arm (3) at the top end, the mechanical arm (3) is connected with a welding gun (4) at one end, the mechanical arm (3) is connected with a controller (5) at the bottom end, the base (1) is rotatably provided with a rotating table (6) inside, the rotating table (6) is connected with a lifting cylinder (8) at the top end, the lifting cylinder (8) is connected with a mounting table (9) at the top end, a plurality of guide rails (10) are rotatably arranged on the outer circle of the mounting table (9), the guide rails (10) are all slidably provided with adjusting mechanisms (11) at the top end, the guide rails (10) are all connected with adjusting cylinders (12) at the bottom end, and the mounting table (9) is connected with an extrusion mechanism (13) at the top end.
4. The swivel chair base welding apparatus of claim 1 wherein: The adjusting mechanism (11) comprises a strip-shaped sliding block (111) slidably arranged on the inner side of the guide rail (10), the strip-shaped sliding block (111) is connected with a screw rod (112) at the bottom end, the screw rod (112) penetrates through the guide rail (10) at the bottom end and is connected with a nut (113), one end of the nut (113) is connected with a resisting block (114), and the strip-shaped sliding block (111) is connected with a fixing unit at the top end.
5. A swivel chair base welding apparatus as defined in claim 4 wherein: The fixing unit comprises a bracket card (115) connected at the top end of the strip-shaped sliding block (111), anti-skid pads (116) are connected on the inner walls of the bracket card (115) on both sides, a clamping groove (117) is formed in the top end of the bracket card (115), and a fixed clamping frame (118) is connected in the clamping groove (117).
6. The swivel chair base welding apparatus of claim 1 wherein: The extrusion mechanism (13) comprises a bidirectional screw rod (131) rotatably arranged at the top end of the mounting table (9), movable sleeve assemblies (132) are threadedly connected to both ends of the bidirectional screw rod (131), a plurality of connecting rods (133) are rotatably arranged on the outer surfaces of the movable sleeve assemblies (132), and the connecting rods (133) are connected with push plates (134) at the other ends.
7. A swivel chair base welding apparatus as defined in claim 6 wherein: A plurality of fan-shaped limiting blocks (14) are connected at the top end of the mounting table (9), and the fan-shaped limiting blocks (14) are located between the push plates (134).