Supporting frame welding device for furniture design and production

Abstract

The invention belongs to the technical field of welding jigs, and particularly relates to a supporting frame welding device for furniture design and production, which comprises an annular connecting seat, a first mounting seat, a clamping piece and a first driving assembly, in the welding process, the position of the first sliding seat in the middle can be adjusted, the position of the first mounting seat can be changed, the supporting position of a welded cross rod can be changed, the stability of the welded cross rod is improved, the situation that the welding quality is reduced due to inclination of the welded cross rod caused by center-of-gravity shift is avoided, and the welding quality is improved; the position of the first sliding base can be adjusted, welding work of polygonal supporting frames with different edge numbers is completed, and the applicability of the welding device is improved; and the distance between the second sliding seat and the axis of the annular connecting seat is adjusted through the second adjusting assembly, polygonal supporting frames of different sizes are welded, and the applicability of the welding device is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding jigs, in particular to a support frame welding device for furniture design and production. Background Art

[0002] In the process of furniture design and production, in addition to polishing, carving or repairing the finished products on the workbench, support frames are also needed to support large-sized semi-finished products. The existing support frames are usually steel structures. When making the support frames, the cross bars need to be welded. Generally, the cross bars are fixed with support fixing devices, and then welded with welding devices.

[0003] Some furniture with polygonal bases requires a polygonal support frame with a corresponding number of sides to support the furniture. However, the current support and fixing device can only fix the cross bars of support frames with a specific number of sides, but cannot fix the cross bars of support frames with different numbers of sides, which reduces the applicability of the support and fixing device. Summary of the invention

[0004] In order to make up for the shortcomings of the prior art, the present invention proposes a support frame welding device for furniture design and production. The present invention is mainly used to solve the problem that the current support fixing device can only fix the cross bars of the support frame with a specific number of sides, but cannot fix the cross bars of the support frames with different numbers of sides, which reduces the applicability of the support fixing device.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: the present invention provides a support frame welding device for furniture design and production, comprising a support positioning component and a welding component; the support positioning component is used to fix the cross bar; the welding component is used to weld the cross bar; the support positioning component comprises an annular connecting seat, a No. 1 mounting seat, a clamping member and a No. 1 driving assembly;

[0006] The annular connecting seat is provided with a No. 1 sliding seat at intervals; the No. 1 sliding seat slides along the circumferential direction of the annular connecting seat; one of the No. 1 sliding seats is connected to the annular connecting seat via a No. 1 adjustment component; the No. 1 adjustment component is used to adjust the position of the No. 1 sliding seat; the remaining No. 1 sliding seats are connected with fixing members; the fixing members are used to fix the No. 1 sliding seat and the annular connecting seat;

[0007] The No. 2 sliding seat is slidably connected to the No. 1 sliding seat; the No. 2 sliding seat slides along the diameter direction of the annular connecting seat; the No. 2 adjustment component is connected to the annular connecting seat; the No. 2 adjustment component is used to adjust the distance between the No. 2 sliding seat and the axis of the annular connecting seat;

[0008] The No. 1 mounting seat is vertically slidably connected to the No. 2 sliding seat; the No. 1 mounting seat is slidably connected to two of the clamping members; the two clamping members are symmetrically arranged; the No. 1 mounting seat is connected to the No. 1 driving assembly; the No. 1 driving assembly is used to drive the No. 1 mounting seat to rise or fall; the No. 1 driving assembly is used to drive the two clamping members to move.

[0009] Preferably, the No. 1 driving assembly comprises a rotating column, a rotating plate, a sliding column, a No. 1 driving member, a No. 1 elastic member, a No. 1 annular magnet, a No. 1 connecting shaft, a bevel gear mechanism and a No. 1 driving mechanism;

[0010] The rotating plates are symmetrically arranged at the upper and lower ends of the rotating column; the rotating plates are rotatably connected to the rotating column; a No. 1 sliding groove is arranged on the rotating column; two sliding columns are slidably connected in the No. 1 sliding groove;

[0011] The ends of the two sliding posts that are away from each other are each provided with a No. 1 mounting groove; the No. 1 driving member is arranged in the No. 1 mounting groove; the ends of the two sliding posts that are close to each other are connected through the No. 1 elastic member; the two ends of the No. 1 elastic member are respectively fixedly connected to the two sliding posts;

[0012] A No. 1 driving groove is provided at one end of the two rotating plates that are close to each other; a No. 2 mounting groove is provided outside the No. 1 driving groove; the No. 1 annular magnet is fixedly connected in the No. 2 mounting groove; a No. 1 columnar structure is provided at one end of the two rotating plates that are away from each other; the No. 1 columnar structure is rotatably connected to the No. 1 mounting seat;

[0013] The No. 1 mounting seat is rotatably connected to the No. 1 connecting shaft; the clamping piece is threadedly connected to the No. 1 connecting shaft; the No. 1 columnar structure of the No. 1 rotating plate above and the No. 1 connecting shaft are driven by the bevel gear mechanism; the No. 1 columnar structure of the No. 1 rotating plate below is threadedly connected to the No. 2 sliding seat;

[0014] The No. 1 mounting seat is connected to the No. 1 driving mechanism; the No. 1 driving mechanism is used to drive the rotating column to rotate.

[0015] Preferably, the welding device further comprises a clamping assembly; the clamping assembly comprises a No. 2 mounting seat, a No. 2 connecting shaft, a rotating member, a No. 2 driving member, a No. 2 sliding plate, a No. 2 elastic member, a No. 2 fixing plate, a No. 3 connecting shaft, a No. 4 connecting shaft, a No. 1 gear, a No. 2 gear, a No. 1 worm, a No. 1 worm wheel and a clamping plate;

[0016] The No. 2 mounting seat is slidably connected to the No. 1 mounting seat; the No. 2 connecting shaft is symmetrically arranged at both ends of the No. 2 mounting seat; the upper end of the No. 2 connecting shaft is rotatably connected to the No. 2 mounting seat; the lower end of the No. 2 connecting shaft is threadedly connected to the No. 1 mounting seat;

[0017] The rotating member is rotatably connected to the No. 2 mounting seat; the rotating member is provided with a No. 1 connecting groove; the side wall of the No. 1 columnar structure of the No. 1 rotating plate above is provided with a No. 2 driving groove; the No. 2 driving groove is vertically arranged; the No. 1 columnar structure of the No. 1 rotating plate above is in conflict with the No. 1 connecting groove; the side wall of the No. 1 columnar structure of the No. 1 rotating plate above is in clearance fit with the inner wall of the No. 1 connecting groove;

[0018] A No. 2 connecting groove is provided on the inner wall of the No. 1 connecting groove; the No. 2 driving member, the No. 2 sliding plate, the No. 2 elastic member, and the No. 2 fixing plate are sequentially arranged in the No. 2 connecting groove; the No. 2 fixing plate is fixedly connected to the inner wall of the No. 2 connecting groove; the No. 2 sliding plate is slidably connected to the inner wall of the No. 2 connecting groove; one end of the No. 2 elastic member abuts against the No. 2 sliding plate; the other end of the No. 2 elastic member abuts against the No. 2 fixing plate; the No. 2 driving member abuts against the No. 2 sliding plate;

[0019] The No. 3 connecting shaft and the No. 4 connecting shaft are rotatably connected on the No. 2 mounting seat; the lower end of the rotating member is fixedly connected to the No. 1 gear; the No. 2 gear is fixedly connected to the No. 3 connecting shaft; the No. 2 gear is meshed with the No. 1 gear; the No. 1 connecting shaft is fixedly connected to the No. 1 worm; the No. 4 connecting shaft is fixedly connected to the No. 1 worm wheel; the No. 1 worm wheel is meshed with the No. 1 worm; the clamping plates are symmetrically arranged at both ends of the No. 4 connecting shaft; the clamping plates are fixedly connected to the No. 4 connecting shaft.

[0020] Preferably, the second adjustment assembly comprises a first rotating shaft, a third driving member, a second motor, a first driving plate, a second rotating shaft and a rubber layer;

[0021] The No. 1 sliding seat is rotatably connected to the No. 1 rotating shaft; the No. 1 rotating shaft is threadedly connected to the No. 2 sliding seat; the end of the No. 1 rotating shaft is fixedly connected to the No. 3 driving member; the No. 3 driving member is truncated; and protrusion structures are evenly spaced on the side surface of the No. 3 driving member;

[0022] The No. 2 motor is fixedly connected to the annular connecting seat; the No. 1 driving plate is slidably connected to the rotating shaft of the No. 2 motor; the No. 1 driving plate rotates synchronously with the rotating shaft of the No. 2 motor; the No. 2 rotating shaft is rotatably connected to the No. 2 rotating shaft on the No. 1 driving plate; the No. 2 rotating shaft is threadedly connected to the rotating shaft of the No. 2 motor; a driving surface is provided on the outer side of the No. 1 driving plate; the rubber layer is fixedly connected to the driving surface.

[0023] Preferably, a No. 1 connecting part is provided on the No. 1 mounting seat at intervals; the No. 1 connecting part is rotatably connected to the No. 1 columnar structure; a No. 5 mounting groove is provided on the side walls of the two No. 1 connecting parts close to each other; and a No. 5 magnet is fixedly connected in the No. 5 mounting groove.

[0024] Preferably, the No. 1 driving mechanism comprises a No. 1 motor, a No. 3 gear, a No. 4 gear and a No. 5 ring gear;

[0025] The No. 1 motor is fixedly connected to the No. 1 mounting seat; the No. 3 gear is fixedly connected to the rotating shaft of the No. 1 motor; the No. 4 gear is rotatably connected to the No. 1 mounting seat; the No. 4 gear is meshed with the No. 3 gear; the No. 5 gear ring is fixedly connected to the rotating column; the No. 5 gear ring is meshed with the No. 4 gear.

[0026] Preferably, the No. 1 adjustment component includes a No. 3 motor, a No. 6 gear and a No. 7 ring gear; the No. 3 motor is fixedly connected to the No. 1 sliding seat; the No. 6 gear is fixedly connected to the rotating shaft of the No. 3 motor; the No. 7 ring gear is fixedly connected to the annular connecting seat; the No. 6 gear is meshed with the No. 7 ring gear.

[0027] Preferably, the No. 1 driving member and the No. 2 driving member are spherical; and the No. 1 elastic member is made of rubber material.

[0028] The beneficial effects of the present invention are as follows:

[0029] 1. In the present invention, the position of the middle sliding seat No. 1 can be adjusted during the welding process, the position of the mounting seat No. 1 can be changed, the supporting position of the welded cross bar can be changed, the stability of the welded cross bar can be improved, the tilt of the welded cross bar due to the offset of the center of gravity can be avoided, and the welding quality can be reduced, thereby improving the welding quality; the position of the sliding seat No. 1 can be adjusted to complete the welding work of polygonal support frames with different numbers of sides, thereby improving the applicability of the welding device; the distance between the sliding seat No. 2 and the axis of the annular connecting seat can be adjusted through the No. 2 adjustment component, and polygonal support frames of different sizes can be welded, thereby improving the applicability of the welding device.

[0030] 2. In the present invention, when the rotating column rotates forward, the No. 1 mounting seat is first moved upward to the highest position, and then the two clamping members are moved closer to each other. When the rotating column rotates reversely, the two clamping members are first moved away from each other, and then the No. 1 mounting seat is moved downward, avoiding the use of two sets of power mechanisms to drive the movement of the clamping members and the lifting and lowering of the No. 1 mounting seat respectively, thereby reducing the control difficulty.

[0031] 3. In the present invention, before the clamping parts come into contact with the side of the cross bar, the cross bar is automatically limited by the clamping plate to keep the cross bar horizontal, prevent the cross bar from tilting, and improve the welding quality; when the clamping parts move away from each other, the clamping plate is automatically moved away from above the cross bar to avoid interference between the clamping plate and the cross bar when the No. 1 mounting seat moves downward.

[0032] 4. In the present invention, the No. 1 driving plate is moved upward to make the rubber layer contact the side surface of the No. 3 driving member, and then the No. 2 motor is rotated to drive the No. 1 driving plate to rotate, drive the rubber layer to rotate, drive the No. 3 driving member to rotate, drive the No. 1 rotating shaft to rotate, drive all the No. 2 sliding seats to move simultaneously, and adjust the distance between the No. 2 sliding seat and the axis line of the annular connecting seat; after the distance between the No. 2 sliding seat and the axis line of the annular connecting seat is adjusted, the No. 1 driving plate is moved downward to make the rubber layer disengage from the side surface of the No. 3 driving member, to prevent the friction between the rubber layer and the No. 3 driving member from driving the No. 3 driving member and the No. 1 rotating shaft to rotate when the No. 1 sliding seat slides, to prevent the No. 1 rotating shaft from rotating and driving the No. 2 sliding seat to move, so that the No. 2 sliding seat and the No. 1 sliding seat remain relatively fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] Figure 1 It is a schematic diagram of the overall structure of the supporting and positioning component in the present invention;

[0035] Figure 2 It is a structural schematic diagram of the No. 2 adjustment component in the present invention;

[0036] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0037] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle;

[0038] Figure 5 It is a structural schematic diagram of the sixth gear in the present invention;

[0039] Figure 6 It is a structural schematic diagram of the pressing assembly in the present invention;

[0040] Figure 7 yes Figure 6 A partial enlarged view of point C in the middle;

[0041] Figure 8 It is a structural schematic diagram of the pressing plate in the present invention;

[0042] Fig. 9 is a schematic diagram of the clamping member fixing the cross bar in the present invention;

[0043] Fig.10 yes Fig. 9 A partial enlarged view of point D in the middle;

[0044] Fig.11 yes Fig. 9 A partial enlarged view of point E in the middle;

[0045] Fig.12 It is a structural schematic diagram of the sliding column in the present invention;

[0046] Fig.13 It is a structural schematic diagram of a No. 1 sliding seat in the present invention;

[0047] Fig.14 It is a structural schematic diagram of a No. 1 mounting seat in the present invention;

[0048] Fig.15 It is a structural schematic diagram of the rotating plate in the present invention;

[0049] Fig.16 It is a structural schematic diagram of the rotating part in the present invention;

[0050] Fig.17 It is a structural schematic diagram of the clamping member in the present invention;

[0051] Fig.18 It is a schematic structural diagram of the rotating column in the present invention;

[0052] In the figure: annular connecting seat 1, No. 1 sliding seat 11, No. 1 adjustment component 12, No. 3 motor 121, No. 6 gear 122, No. 7 gear ring 123, fixing member 13, No. 2 sliding seat 14, No. 2 adjustment component 15, No. 1 rotating shaft 151, No. 3 driving member 152, protruding structure 1521, No. 2 motor 153, No. 1 driving plate 154, No. 2 rotating shaft 155, rubber layer 156, No. 1 mounting seat 2, No. 1 connecting part 21, No. 5 magnet 23, clamping member 3, No. 1 driving component 4, rotating column 41, No. 1 sliding groove 411, rotating plate 42, No. 1 driving groove 421, No. 1 columnar structure 423, No. 2 driving groove 4231, sliding Column 43, No. 1 mounting groove 431, No. 1 driving member 44, No. 1 elastic member 45, No. 1 annular magnet 46, No. 1 connecting shaft 47, bevel gear mechanism 48, No. 1 driving mechanism 49, No. 1 motor 491, No. 3 gear 492, No. 4 gear 493, No. 5 ring gear 494, clamping assembly 6, No. 2 mounting seat 61, No. 2 connecting shaft 62, rotating member 63, No. 1 connecting groove 631, No. 2 connecting groove 632, No. 2 driving member 64, No. 2 sliding plate 65, No. 2 elastic member 66, No. 2 fixing plate 67, No. 3 connecting shaft 68, No. 4 connecting shaft 69, No. 1 gear 71, No. 2 gear 72, No. 1 worm 73, No. 1 worm wheel 74, clamping plate 75. DETAILED DESCRIPTION

[0053] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0054] like Figure 1-Figure 18 As shown, a support frame welding device for furniture design and production includes a support positioning component and a welding component; the support positioning component is used to fix the cross bar; the welding component is used to weld the cross bar; the support positioning component includes an annular connecting seat 1, a No. 1 mounting seat 2, a clamping member 3 and a No. 1 driving assembly 4;

[0055] The annular connecting seat 1 is provided with a No. 1 sliding seat 11 at intervals; the No. 1 sliding seat 11 slides along the circumferential direction of the annular connecting seat 1; one of the No. 1 sliding seats 11 is connected to the annular connecting seat 1 through a No. 1 adjustment component 12; the No. 1 adjustment component 12 is used to adjust the position of the No. 1 sliding seat 11; the remaining No. 1 sliding seats 11 are connected with fixing members 13; the fixing members 13 are used to fix the No. 1 sliding seat 11 and the annular connecting seat 1;

[0056] The No. 2 sliding seat 14 is slidably connected to the No. 1 sliding seat 11; the No. 2 sliding seat 14 slides along the diameter direction of the annular connecting seat 1; the No. 2 adjustment component 15 is connected to the annular connecting seat 1; the No. 2 adjustment component 15 is used to adjust the distance between the No. 2 sliding seat 14 and the axis of the annular connecting seat 1;

[0057] The No. 2 sliding seat 14 is vertically slidably connected to the No. 1 mounting seat 2; the No. 1 mounting seat 2 is slidably connected to two clamping members 3; the two clamping members 3 are symmetrically arranged; the No. 1 mounting seat 2 is connected to the No. 1 driving component 4; the No. 1 driving component 4 is used to drive the No. 1 mounting seat 2 to rise or fall; the No. 1 driving component 4 is used to drive the two clamping members 3 to move.

[0058] During operation, the staff first adjusts the positions of the three No. 1 sliding seats 11 according to the number of sides of the polygonal support frame (so that the three No. 1 sliding seats 11 are located in the middle position of the three adjacent cross bars of the polygonal support frame), and fixes the two No. 1 sliding seats 11 through the fixing parts 13, and then adjusts the distance between the No. 2 sliding seat 14 and the axis of the annular connecting seat 1 through the No. 2 adjustment component 15, so that the distance between the No. 2 sliding seat 14 and the axis of the annular connecting seat 1 corresponds to the size of the polygonal support frame, and then drives the No. 1 mounting seat 2 to move upward through the No. 1 driving component 4, and the No. 1 driving component 4 moves the No. 1 mounting seat 2 upward to the highest position and then stops The work is stopped, and then the staff puts a cross bar between the two clamping pieces 3 and makes the cross bar contact with the upper surface of the No. 1 mounting seat 2. After the cross bar is placed, the position of the cross bar is adjusted, and then the No. 1 driving assembly 4 continues to work. At this time, the No. 1 mounting seat 2 remains stationary, and the No. 1 driving assembly 4 drives the two clamping pieces 3 to approach each other. The two clamping pieces 3 are respectively squeezed on both sides of the cross bar. After that, the No. 1 driving assembly 4 stops working, and then the cross bar is clamped by the two clamping pieces 3 to fix the cross bar. The two adjacent cross bars on both sides of the cross bar are fixed by the corresponding clamping pieces 3 in the same way. Then the staff welds the cross bar and the corresponding The connection between the two adjacent cross bars is welded, and the three cross bars are welded together. Then, the No. 1 driving component 4 on the No. 1 mounting seat 2 (the No. 1 mounting seat 2 refers to the No. 1 mounting seat 2 above the No. 1 sliding seat 11 connected to the annular connecting seat 1 through the No. 1 adjusting component 12) is operated. At this time, the No. 1 mounting seat 2 remains stationary, and the No. 1 driving component 4 moves the two clamping members 3 on the No. 1 mounting seat 2 away from each other, and the cross bar is relaxed. After the distance between the two clamping members 3 reaches the maximum, the No. 1 driving component 4 drives the No. 1 mounting seat 2 to move downward, drives the two clamping members 3 to move downward, and after the No. 1 mounting seat 2 moves to the lowest position, the No. 1 driving component 4 stops. Stop working, then make the No. 1 adjustment component 12 work, make the No. 1 sliding seat 11 rotate around the axis of the annular connecting seat 1, the No. 1 sliding seat 11 stops rotating after rotating a certain angle, then the No. 1 driving component 4 drives the No. 1 mounting seat 2 to move upward, after the No. 1 mounting seat 2 moves upward to the highest point, the No. 1 driving component 4 stops working, places the cross bar between the two clamping members 3 and adjusts the position of the cross bar, then makes the No. 1 driving component 4 continue to work, fixes the cross bar, and then welds the connection between the current cross bar and the adjacent cross bar through the welding component, repeats the above work, completes the welding of the cross bar of the polygonal support frame, and completes the welding of the polygonal support frame;

[0059] When the number of sides of the support frame is large, the position of the middle No. 1 sliding seat 11 can be adjusted during the welding process, the position of the No. 1 mounting seat 2 can be changed, and the supporting position of the welded cross bar can be changed to improve the stability of the welded cross bar, avoid the tilt of the welded cross bar due to the offset of the center of gravity, and reduce the welding quality, thereby improving the welding quality;

[0060] The position of the No. 1 sliding seat 11 can be adjusted to complete the welding of polygonal support frames with different numbers of sides, thereby improving the applicability of the welding device; the distance between the No. 2 sliding seat 14 and the axis of the annular connecting seat 1 can be adjusted through the No. 2 adjustment component 15 to weld polygonal support frames of different sizes, thereby improving the applicability of the welding device; the welding components are conventional equipment and are not described in detail in this article.

[0061] The first driving assembly 4 includes a rotating column 41, a rotating plate 42, a sliding column 43, a first driving member 44, a first elastic member 45, a first annular magnet 46, a first connecting shaft 47, a bevel gear mechanism 48 and a first driving mechanism 49;

[0062] Rotating plates 42 are symmetrically arranged at the upper and lower ends of the rotating column 41; the rotating plates 42 are rotatably connected to the rotating column 41; a first sliding groove 411 is arranged on the rotating column 41; two sliding columns 43 are slidably connected in the first sliding groove 411;

[0063] The ends of the two sliding posts 43 that are away from each other are each provided with a No. 1 mounting groove 431; a No. 1 driving member 44 is arranged in the No. 1 mounting groove 431; the ends of the two sliding posts 43 that are close to each other are connected by a No. 1 elastic member 45; the two ends of the No. 1 elastic member 45 are respectively fixedly connected to the two sliding posts 43;

[0064] The ends of the two rotating plates 42 that are close to each other are each provided with a No. 1 driving groove 421; the outer side of the No. 1 driving groove 421 is provided with a No. 2 mounting groove; the No. 1 annular magnet 46 is fixedly connected in the No. 2 mounting groove; the ends of the two rotating plates 42 that are away from each other are each provided with a No. 1 columnar structure 423; the No. 1 columnar structure 423 is rotatably connected to the No. 1 mounting seat 2;

[0065] The No. 1 mounting seat 2 is rotatably connected to the No. 1 connecting shaft 47; the clamping member 3 is threadedly connected to the No. 1 connecting shaft 47; the No. 1 columnar structure 423 of the No. 1 rotating plate 42 above and the No. 1 connecting shaft 47 are driven by a bevel gear mechanism 48; the No. 1 columnar structure 423 of the No. 1 rotating plate 42 below is threadedly connected to the No. 2 sliding seat 14;

[0066] The No. 1 mounting seat 2 is connected to a No. 1 driving mechanism 49 ; the No. 1 driving mechanism 49 is used to drive the rotating column 41 to rotate.

[0067] When the No. 1 mounting seat 2 needs to move upward, the No. 1 driving mechanism 49 works, and the No. 1 driving mechanism 49 drives the rotating column 41 to rotate forward. At this time, the No. 1 driving member 44 below abuts against the No. 1 driving groove 421 of the lower rotating plate 42 (when the No. 1 mounting seat 2 moves to the lowest position and the No. 1 driving mechanism 49 stops working, the No. 1 driving member 44 below abuts against the No. 1 driving groove 421 of the lower rotating plate 42), and the No. 1 annular magnet 46 on the lower rotating plate 42 generates suction to the sliding column 43 below, so that the sliding column 43 below abuts against the rotating plate 42 below. The No. 1 driving member 44 at the top does not contact the rotating plate 42 at the top, and the No. 1 driving member 44 at the bottom drives the rotating plate 42 at the bottom to rotate, and drives the No. 1 columnar structure 423 at the bottom to rotate, and increases the distance between the No. 1 mounting seat 2 and the No. 2 sliding seat 14, so that the No. 1 mounting seat 2 slides upward, and the No. 1 mounting seat 2 slides upward to the highest position and remains motionless, so that the No. 1 driving mechanism 49 stops working, and the cross bar is placed between the two clamping members 3 and the position of the cross bar is adjusted, so that the No. 1 driving mechanism 49 continues to work, and the rotating column 41 continues to rotate. At this time, the No. 1 The mounting seat 2 no longer moves, the No. 1 columnar structure 423 below no longer rotates, and the rotating plate 42 below no longer rotates, so that the No. 1 driving member 44 below is disengaged from the No. 1 driving groove 421 below, so that the No. 1 driving member 44 below abuts against the rotating plate 42 below, reducing the distance between the two sliding columns 43, so that the No. 1 elastic member 45 generates elastic force, and the rotating column 41 continues to rotate. When the No. 1 driving member 44 above rotates to the bottom of the No. 1 driving groove 421 above, the elastic force of the No. 1 elastic member 45 causes the upper sliding column 43 to slide upward, so that the No. 1 driving member 44 above The member 44 contacts the No. 1 driving groove 421 at the top, and at the same time, the No. 1 annular magnet 46 at the top makes the upper sliding column 43 contact the upper rotating plate 42. At this time, the No. 1 driving member 44 at the bottom does not contact the rotating plate 42 at the bottom, and the rotating column 41 continues to rotate, and the No. 1 driving member 44 at the top drives the upper rotating plate 42 to rotate, and drives the No. 1 columnar structure 423 at the top to rotate, and drives the No. 1 connecting shaft 47 to rotate through the bevel gear mechanism 48, so that the two clamping members 3 are close to each other, so that the clamping members 3 are squeezed on both sides of the cross bar to fix the cross bar;

[0068] After the front crossbar is welded, the No. 1 driving mechanism 49 drives the rotating column 41 to rotate in the opposite direction. At this time, the No. 1 driving member 44 on the top abuts against the No. 1 driving groove 421 of the upper rotating plate 42 (the clamping member 3 fixes the crossbar. When the No. 1 driving mechanism 49 stops working, the No. 1 driving member 44 on the top abuts against the No. 1 driving groove 421 of the upper rotating plate 42). The No. 1 annular magnet 46 on the upper rotating plate 42 generates suction to the upper sliding column 43, causing the upper sliding column 43 to abut against the No. 1 driving groove 421 of the upper rotating plate 42. The first driving member 44 at the bottom does not contact the rotating plate 42 at the bottom, and the rotating plate 42 at the top is driven to rotate by the first driving member 44 at the top, and the first columnar structure 423 at the top is driven to rotate, and the first connecting shaft 47 is driven to rotate by the bevel gear mechanism 48, so that the two clamping members 3 are separated from each other, and the clamping members 3 are separated from the two sides of the cross bar, and the cross bar is loosened. After the distance between the two clamping members 3 reaches the maximum, the clamping member 3 no longer moves, and the first connecting shaft 47 does not The first drive member 44 at the top is not in contact with the upper rotating plate 42, and the rotating column 41 continues to rotate, and the No. 1 driving member 44 at the top drives the rotating plate 42 at the top to rotate, so that the No. 1 driving member 44 at the top abuts against the upper rotating plate 42, reducing the distance between the two sliding posts 43, and causing the No. 1 elastic member 45 to generate an elastic force. When the No. 1 driving member 44 at the bottom rotates to the top of the No. 1 driving groove 421 at the bottom, the elastic force of the No. 1 elastic member 45 causes the lower sliding post 43 to slide downward, so that the No. 1 driving member 44 at the bottom abuts against the No. 1 driving groove 421 at the bottom. At the same time, under the action of the No. 1 annular magnet 46 at the bottom, the lower sliding post 43 abuts against the rotating plate 42 at the bottom. At this time, the No. 1 driving member 44 at the top does not contact the rotating plate 42 at the top, and the rotating column 41 continues to rotate, and the No. 1 driving member 44 at the top drives the rotating plate 42 at the bottom to rotate, and drives the No. 1 column structure 423 at the bottom to rotate, so that the No. 1 mounting seat 2 moves downward until the No. 1 mounting seat 2 moves to the lowest position.

[0069] When the rotating column 41 rotates forward, the No. 1 mounting seat 2 is first moved upward to the highest position, and then the two clamping members 3 are moved closer to each other. When the rotating column 41 rotates reversely, the two clamping members 3 are first moved away from each other, and then the No. 1 mounting seat 2 is moved downward, avoiding the use of two sets of power mechanisms to drive the movement of the clamping member 3 and the lifting and lowering of the No. 1 mounting seat 2 respectively, thereby reducing the control difficulty.

[0070] The welding device further includes a clamping assembly 6; the clamping assembly 6 includes a No. 2 mounting seat 61, a No. 2 connecting shaft 62, a rotating member 63, a No. 2 driving member 64, a No. 2 sliding plate 65, a No. 2 elastic member 66, a No. 2 fixing plate 67, a No. 3 connecting shaft 68, a No. 4 connecting shaft 69, a No. 1 gear 71, a No. 2 gear 72, a No. 1 worm 73, a No. 1 worm wheel 74 and a clamping plate 75;

[0071] The No. 1 mounting seat 2 is slidably connected to the No. 2 mounting seat 61; the No. 2 connecting shaft 62 is symmetrically arranged at both ends of the No. 2 mounting seat 61; the upper end of the No. 2 connecting shaft 62 is rotatably connected to the No. 2 mounting seat 61; the lower end of the No. 2 connecting shaft 62 is threadedly connected to the No. 1 mounting seat 2;

[0072] The No. 2 mounting seat 61 is rotatably connected to the rotating member 63; the rotating member 63 is provided with a No. 1 connecting groove 631; the side wall of the No. 1 columnar structure 423 of the No. 1 rotating plate 42 above is provided with a No. 2 driving groove 4231; the No. 2 driving groove 4231 is vertically arranged; the No. 1 columnar structure 423 of the No. 1 rotating plate 42 above is abutted in the No. 1 connecting groove 631; the side wall of the No. 1 columnar structure 423 of the No. 1 rotating plate 42 above is gap-matched with the inner wall of the No. 1 connecting groove 631;

[0073] A No. 2 connecting groove 632 is provided on the inner wall of the No. 1 connecting groove 631; a No. 2 driving member 64, a No. 2 sliding plate 65, a No. 2 elastic member 66, and a No. 2 fixing plate 67 are sequentially arranged in the No. 2 connecting groove 632; the No. 2 fixing plate 67 is fixedly connected to the inner wall of the No. 2 connecting groove 632; the No. 2 sliding plate 65 is slidably connected to the inner wall of the No. 2 connecting groove 632; one end of the No. 2 elastic member 66 abuts against the No. 2 sliding plate 65; the other end of the No. 2 elastic member 66 abuts against the No. 2 fixing plate 67; the No. 2 driving member 64 abuts against the No. 2 sliding plate 65;

[0074] The No. 3 connecting shaft 68 and the No. 4 connecting shaft 69 are rotatably connected on the No. 2 mounting seat 61; the lower end of the rotating member 63 is fixedly connected to the No. 1 gear 71; the No. 2 gear 72 is fixedly connected to the No. 3 connecting shaft 68; the No. 2 gear 72 meshes with the No. 1 gear 71; the No. 1 worm gear 73 is fixedly connected to the No. 3 connecting shaft 68; the No. 1 worm wheel 74 is fixedly connected to the No. 4 connecting shaft 69; the No. 1 worm wheel 74 meshes with the No. 1 worm gear 73; clamping plates 75 are symmetrically arranged at both ends of the No. 4 connecting shaft 69; the clamping plates 75 are fixedly connected to the No. 4 connecting shaft 69.

[0075] After the crossbar position is adjusted, the No. 1 driving mechanism 49 works, and the No. 1 columnar structure 423 above drives the No. 1 connecting shaft 47 to rotate, driving the two clamping members 3 to approach each other in the early stage. When the No. 2 driving groove 4231 rotates to the side of the No. 2 driving member 64, the No. 2 elastic member 66 makes the No. 2 driving member 64 contact the No. 2 driving groove 4231, and the rotating member 63 is driven to rotate through the No. 2 driving member 64, and the No. 3 connecting shaft 68 is driven to rotate through the No. 1 gear 71 and the No. 2 gear 72, and the No. 4 connecting shaft 69 is driven to rotate through the No. 1 worm 73 and the No. 1 worm wheel 74. The clamping plate 75 is driven to rotate, and the clamping plate 75 is rotated 180 degrees, so that the clamping plate 75 abuts against the cross bar (the clamping plate 75 abuts against the cross bar at the initial stage of the two clamping members 3 approaching each other), so that the cross bar remains horizontal. After the clamping plate 75 abuts against the cross bar, the first columnar structure 423 continues to rotate, so that the second driving member 64 is disengaged from the second driving groove 4231, so that the first columnar structure 423 can continue to rotate, so that the clamping members 3 continue to approach each other. At this time, the self-locking effect of the first worm 73 and the first worm wheel 74 makes the clamping plate 75 always abut against the cross bar.

[0076] The first columnar structure 423 at the top drives the first connecting shaft 47 to rotate, so that the two clamping members 3 are separated from each other in the early stage. When the second driving groove 4231 rotates to the side of the second driving member 64, the second elastic member 66 makes the second driving member 64 contact the second driving groove 4231, and the second driving member 64 drives the rotating member 63 to rotate, and the first gear 71 and the second gear 72 drive the third connecting shaft 68 to rotate, and the first worm 73 and the first worm wheel 74 drive the rotating member 63 to rotate. The fourth connecting shaft 69 rotates, driving the clamping plate 75 to rotate, so that the clamping plate 75 is separated from the surface of the cross bar, and the clamping plate 75 rotates 180 degrees, so that the clamping plate 75 is separated from the top of the cross bar, so that the clamping plate 75 contacts the surface of the second mounting seat 61, and the first columnar structure 423 continues to rotate, so that the second driving member 64 is separated from the second driving groove 4231, so that the first columnar structure 423 can continue to rotate, so that the clamping members 3 continue to move away from each other, and the cross bar is loosened;

[0077] Before the clamping member 3 contacts the side of the cross bar, the cross bar is automatically limited by the clamping plate 75 to keep the cross bar horizontal, prevent the cross bar from tilting, and improve the welding quality; when the clamping members 3 move away from each other, the clamping plate 75 is automatically moved away from above the cross bar to avoid interference between the clamping plate 75 and the cross bar when the No. 1 mounting seat 2 moves downward; before the clamping member 3 contacts the side of the cross bar, the cross bar is automatically limited by the clamping plate 75. When the clamping members 3 move away from each other, the clamping plate 75 is automatically moved away from above the cross bar to avoid using a separate driving mechanism to drive the clamping plate 75, thereby reducing the control difficulty; rotate the No. 2 connecting shaft 62 to adjust the distance between the No. 2 mounting seat 61 and the No. 1 mounting seat 2, change the distance between the clamping plate 75 and the No. 1 mounting seat 2, and clamp cross bars of different heights to improve the applicability of the clamping assembly 6.

[0078] The second adjustment assembly 15 includes a first rotating shaft 151, a third driving member 152, a second motor 153, a first driving plate 154, a second rotating shaft 155 and a rubber layer 156;

[0079] The first sliding seat 11 is rotatably connected to the first rotating shaft 151; the first rotating shaft 151 is threadedly connected to the second sliding seat 14; the end of the first rotating shaft 151 is fixedly connected to the third driving member 152; the third driving member 152 is truncated; the side surface of the third driving member 152 is evenly spaced with protrusion structures 1521;

[0080] The annular connecting seat 1 is fixedly connected to the No. 2 motor 153; the No. 1 driving plate 154 is slidably connected to the rotating shaft of the No. 2 motor 153; the No. 1 driving plate 154 rotates synchronously with the rotating shaft of the No. 2 motor 153; the No. 1 driving plate 154 is rotatably connected to the No. 2 rotating shaft 155; the No. 2 rotating shaft 155 is threadedly connected to the rotating shaft of the No. 2 motor 153; a driving surface is provided on the outer side of the No. 1 driving plate 154; and a rubber layer 156 is fixedly connected to the driving surface.

[0081] When the distance between the No. 2 sliding seat 14 and the axis of the annular connecting seat 1 needs to be adjusted, the No. 2 rotating shaft 155 is rotated to move the No. 2 rotating shaft 155 upward, so that the No. 1 driving plate 154 moves upward, so that the rubber layer 156 contacts the side of the No. 3 driving member 152, and then the No. 2 motor 153 is rotated to drive the No. 1 driving plate 154 to rotate, drive the rubber layer 156 to rotate, drive the No. 3 driving member 152 to rotate, drive the No. 1 rotating shaft 151 to rotate, and drive all the No. 2 sliding seats 14 to move simultaneously, so as to adjust the distance between the No. 2 sliding seat 14 and the axis of the annular connecting seat 1. After the distance between the No. 2 sliding seat 14 and the axis of the annular connecting seat 1 is adjusted, the No. 2 rotating shaft 155 is rotated in the opposite direction to move the No. 2 rotating shaft 155 downward, so that the No. 1 driving plate 154 moves downward, and the rubber layer 156 is separated from the side of the No. 3 driving member 152 to prevent the No. 1 sliding seat 11 from sliding when the friction between the rubber layer 156 and the No. 3 driving member 152 drives the No. 3 driving member 152 and the No. 1 rotating shaft 151 to rotate, and prevent the No. 1 rotating shaft 151 from rotating to drive the No. 2 sliding seat 14 to move, so that the No. 2 sliding seat 14 and the No. 1 sliding seat 11 remain relatively fixed.

[0082] A No. 1 connection part 21 is provided on the No. 1 mounting seat 2 at intervals; the No. 1 connection part 21 is rotatably connected to the No. 1 columnar structure 423; a No. 5 mounting groove is provided on the side walls of the two No. 1 connection parts 21 close to each other; and a No. 5 magnet 23 is fixedly connected in the No. 5 mounting groove.

[0083] When the No. 1 mounting seat 2 moves upward, the friction force of the rotating column 41 on the upper rotating plate 42 easily drives the upper rotating plate 42 to rotate, so that the two clamping parts 3 are close to each other, reducing the distance between the two clamping parts 3 and reducing the convenience of placing the cross bar between the two clamping plates. The No. 5 magnet 23 generates suction on the upper rotating plate 42, increasing the friction between the upper No. 1 connecting part 21 and the upper rotating plate 42, so that the upper rotating plate 42 remains stationary, preventing the two clamping parts 3 from approaching each other and improving the convenience of placing the cross bar; when the two clamping parts 3 move away from each other, the friction force of the rotating column 41 on the lower rotating plate 42 easily drives the lower rotating plate 42 to rotate, so that the No. 1 mounting seat 2 moves downward, and the No. 5 magnet 23 below generates suction on the lower rotating plate 42, increasing the friction between the lower No. 1 connecting part 21 and the lower rotating plate 42, so that the lower rotating plate 42 remains stationary, and the No. 1 mounting seat 2 remains stationary when the clamping parts 3 move away from each other.

[0084] The first driving mechanism 49 includes a first motor 491, a third gear 492, a fourth gear 493 and a fifth ring gear 494;

[0085] The No. 1 mounting seat 2 is fixedly connected to the No. 1 motor 491; the No. 3 gear 492 is fixedly connected to the rotating shaft of the No. 1 motor 491; the No. 4 gear 493 is rotatably connected to the No. 1 mounting seat 2; the No. 4 gear 493 is meshed with the No. 3 gear 492; the No. 5 ring gear 494 is fixedly connected to the rotating column 41; the No. 5 ring gear 494 is meshed with the No. 4 gear 493.

[0086] The first motor 491 drives the third gear 492 to rotate, drives the fourth gear 493 to rotate, drives the fifth gear ring 494 to rotate, and drives the rotating column 41 to rotate.

[0087] The No. 1 adjustment assembly 12 includes a No. 3 motor 121, a No. 6 gear 122 and a No. 7 ring gear 123; the No. 3 motor 121 is fixedly connected to the No. 1 sliding seat 11; the No. 6 gear 122 is fixedly connected to the rotating shaft of the No. 3 motor 121; the No. 7 ring gear 123 is fixedly connected to the annular connecting seat 1; the No. 6 gear 122 is meshed with the No. 7 ring gear 123.

[0088] The third motor 121 drives the sixth gear 122 to rotate, so that the sixth gear 122 moves along the seventh gear ring 123 , and drives the first sliding seat 11 to rotate around the axis of the annular connecting seat 1 .

[0089] The first driving member 44 and the second driving member 64 are spherical; the first elastic member 45 is made of rubber material.

[0090] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A support frame welding device for furniture design and production, comprising a support positioning component and a welding component; the support positioning component is used to fix the cross bar; the welding component is used to weld the cross bar; the characteristics are: The supporting and positioning component comprises an annular connecting seat (1), a No. 1 mounting seat (2), a clamping member (3) and a No. 1 driving assembly (4); A number one sliding seat (11) is arranged on the annular connecting seat (1) at intervals; the number one sliding seat (11) slides along the circumferential direction of the annular connecting seat (1); one of the number one sliding seats (11) is connected to the annular connecting seat (1) via a number one adjustment component (12); the number one adjustment component (12) is used to adjust the position of the number one sliding seat (11); the remaining number one sliding seats (11) are connected to fixing members (13); the fixing members (13) are used to fix the number one sliding seat (11) and the annular connecting seat (1); A No. 2 sliding seat (14) is slidably connected to the No. 1 sliding seat (11); the No. 2 sliding seat (14) slides along the diameter direction of the annular connecting seat (1); a No. 2 adjustment component (15) is connected to the annular connecting seat (1); the No. 2 adjustment component (15) is used to adjust the distance between the No. 2 sliding seat (14) and the axis of the annular connecting seat (1); The No. 2 sliding seat (14) is vertically slidably connected to the No. 1 mounting seat (2); the No. 1 mounting seat (2) is slidably connected to two of the clamping members (3); the two clamping members (3) are symmetrically arranged; the No. 1 mounting seat (2) is connected to the No. 1 driving component (4); the No. 1 driving component (4) is used to drive the No. 1 mounting seat (2) to rise or fall; the No. 1 driving component (4) is used to drive the two clamping members (3) to move.

2. A support frame welding device for furniture design and production according to claim 1, characterized in that: The first driving assembly (4) comprises a rotating column (41), a rotating plate (42), a sliding column (43), a first driving member (44), a first elastic member (45), a first annular magnet (46), a first connecting shaft (47), a bevel gear mechanism (48) and a first driving mechanism (49); The rotating plates (42) are symmetrically arranged at the upper and lower ends of the rotating column (41); the rotating plates (42) are rotatably connected to the rotating column (41); a first sliding groove (411) is arranged on the rotating column (41); two sliding columns (43) are slidably connected in the first sliding groove (411); The ends of the two sliding columns (43) that are away from each other are each provided with a No. 1 mounting groove (431); the No. 1 driving member (44) is arranged in the No. 1 mounting groove (431); the ends of the two sliding columns (43) that are close to each other are connected via the No. 1 elastic member (45); the two ends of the No. 1 elastic member (45) are respectively fixedly connected to the two sliding columns (43); A first driving groove (421) is provided at one end of the two rotating plates (42) that are close to each other; a second mounting groove is provided outside the first driving groove (421); the first annular magnet (46) is fixedly connected in the second mounting groove; a first columnar structure (423) is provided at one end of the two rotating plates (42) that are away from each other; the first columnar structure (423) is rotatably connected to the first mounting seat (2); The No. 1 mounting seat (2) is rotatably connected to the No. 1 connecting shaft (47); the clamping member (3) is threadedly connected to the No. 1 connecting shaft (47); the No. 1 columnar structure (423) of the No. 1 rotating plate (42) above and the No. 1 connecting shaft (47) are driven by the bevel gear mechanism (48); the No. 1 columnar structure (423) of the No. 1 rotating plate (42) below is threadedly connected to the No. 2 sliding seat (14); The No. 1 mounting seat (2) is connected to the No. 1 driving mechanism (49); the No. 1 driving mechanism (49) is used to drive the rotating column (41) to rotate.

3. A support frame welding device for furniture design and production according to claim 2, characterized in that: The welding device further comprises a clamping assembly (6); the clamping assembly (6) comprises a No. 2 mounting seat (61), a No. 2 connecting shaft (62), a rotating member (63), a No. 2 driving member (64), a No. 2 sliding plate (65), a No. 2 elastic member (66), a No. 2 fixing plate (67), a No. 3 connecting shaft (68), a No. 4 connecting shaft (69), a No. 1 gear (71), a No. 2 gear (72), a No. 1 worm (73), a No. 1 worm wheel (74) and a clamping plate (75); The No. 1 mounting seat (2) is slidably connected to the No. 2 mounting seat (61); the No. 2 connecting shaft (62) is symmetrically arranged at both ends of the No. 2 mounting seat (61); the upper end of the No. 2 connecting shaft (62) is rotatably connected to the No. 2 mounting seat (61); the lower end of the No. 2 connecting shaft (62) is threadedly connected to the No. 1 mounting seat (2); The rotating member (63) is rotatably connected to the No. 2 mounting seat (61); the rotating member (63) is provided with a No. 1 connecting groove (631); the side wall of the No. 1 columnar structure (423) of the No. 1 rotating plate (42) above is provided with a No. 2 driving groove (4231); the No. 2 driving groove (4231) is vertically arranged; the No. 1 columnar structure (423) of the No. 1 rotating plate (42) above is in contact with the No. 1 connecting groove (631); the side wall of the No. 1 columnar structure (423) of the No. 1 rotating plate (42) above is gap-matched with the inner wall of the No. 1 connecting groove (631); A No. 2 connecting groove (632) is provided on the inner wall of the No. 1 connecting groove (631); the No. 2 driving member (64), the No. 2 sliding plate (65), the No. 2 elastic member (66), and the No. 2 fixing plate (67) are sequentially arranged in the No. 2 connecting groove (632); the No. 2 fixing plate (67) is fixedly connected to the inner wall of the No. 2 connecting groove (632); the No. 2 sliding plate (65) is slidably connected to the inner wall of the No. 2 connecting groove (632); one end of the No. 2 elastic member (66) abuts against the No. 2 sliding plate (65); the other end of the No. 2 elastic member (66) abuts against the No. 2 fixing plate (67); the No. 2 driving member (64) abuts against the No. 2 sliding plate (65); The No. 3 connecting shaft (68) and the No. 4 connecting shaft (69) are rotatably connected on the No. 2 mounting seat (61); the lower end of the rotating member (63) is fixedly connected to the No. 1 gear (71); the No. 2 gear (72) is fixedly connected to the No. 3 connecting shaft (68); the No. 2 gear (72) is meshed with the No. 1 gear (71); the No. 1 worm gear (73) is fixedly connected to the No. 3 connecting shaft (68); the No. 1 worm wheel (74) is fixedly connected to the No. 4 connecting shaft (69); the No. 1 worm wheel (74) is meshed with the No. 1 worm gear (73); the clamping plates (75) are symmetrically arranged at both ends of the No. 4 connecting shaft (69); the clamping plates (75) are fixedly connected to the No. 4 connecting shaft (69).

4. A support frame welding device for furniture design and production according to claim 3, characterized in that: The second adjustment component (15) comprises a first rotating shaft (151), a third driving member (152), a second motor (153), a first driving plate (154), a second rotating shaft (155) and a rubber layer (156); The No. 1 sliding seat (11) is rotatably connected to the No. 1 rotating shaft (151); the No. 1 rotating shaft (151) is threadedly connected to the No. 2 sliding seat (14); the end of the No. 1 rotating shaft (151) is fixedly connected to the No. 3 driving member (152); the No. 3 driving member (152) is truncated; and protrusion structures (1521) are evenly spaced on the side surface of the No. 3 driving member (152); The annular connecting seat (1) is fixedly connected to the No. 2 motor (153); the No. 1 driving plate (154) is slidably connected to the rotating shaft of the No. 2 motor (153); the No. 1 driving plate (154) rotates synchronously with the rotating shaft of the No. 2 motor (153); the No. 2 rotating shaft (155) is rotatably connected to the No. 1 driving plate (154); the No. 2 rotating shaft (155) is threadedly connected to the rotating shaft of the No. 2 motor (153); a driving surface is provided on the outer side of the No. 1 driving plate (154); and the rubber layer (156) is fixedly connected to the driving surface.

5. A support frame welding device for furniture design and production according to claim 4, characterized in that: A No. 1 connecting portion (21) is provided on the No. 1 mounting seat (2) at intervals; the No. 1 connecting portion (21) is rotatably connected to the No. 1 columnar structure (423); a No. 5 mounting groove is provided on the side walls of the two No. 1 connecting portions (21) that are close to each other; and a No. 5 magnet (23) is fixedly connected in the No. 5 mounting groove.

6. A support frame welding device for furniture design and production according to claim 5, characterized in that: The first driving mechanism (49) comprises a first motor (491), a third gear (492), a fourth gear (493) and a fifth gear ring (494); The No. 1 motor (491) is fixedly connected to the No. 1 mounting seat (2); the No. 3 gear (492) is fixedly connected to the rotating shaft of the No. 1 motor (491); the No. 4 gear (493) is rotatably connected to the No. 1 mounting seat (2); the No. 4 gear (493) is meshed with the No. 3 gear (492); the No. 5 gear ring (494) is fixedly connected to the rotating column (41); the No. 5 gear ring (494) is meshed with the No. 4 gear (493).

7. A support frame welding device for furniture design and production according to claim 6, characterized in that: The No. 1 adjustment assembly (12) comprises a No. 3 motor (121), a No. 6 gear (122) and a No. 7 gear ring (123); the No. 3 motor (121) is fixedly connected to the No. 1 sliding seat (11); the No. 6 gear (122) is fixedly connected to the rotating shaft of the No. 3 motor (121); the No. 7 gear ring (123) is fixedly connected to the annular connecting seat (1); the No. 6 gear (122) is meshed with the No. 7 gear ring (123).

8. The support frame welding device for furniture design and production according to claim 7 is characterized in that: The first driving member (44) and the second driving member (64) are spherical; the first elastic member (45) is made of rubber material.

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