Display stand processing and welding device

Abstract

The present invention relates to the technical field of welding devices, and specifically discloses a display stand processing and welding device, including a machine body and a slide unit arranged on the top of the machine body. A plurality of rectangularly distributed positioning mechanisms are arranged on the top of the slide unit. The positioning mechanisms are used to fix a rectangular frame formed by connecting a plurality of steel bars. In the present application, through the cooperation of a driving motor, a winding roller, a control rope and a gear rack, when the slide adjusts the spacing of the positioning mechanisms to adapt to frames of different specifications, the winding roller automatically retracts and releases the control rope through a belt linkage mechanism, and can accurately respond to changes in the distance between the positioning mechanisms without manual intervention. Regardless of whether the frame length is stretched or shortened, or the width is expanded or reduced, the control rope can achieve dynamic tension balance through the free rotation of the winding roller, avoiding transmission slack or jamming caused by changes in spacing. At the same time, the control rope synchronously transmits the single power of the driving motor to the inner support blocks of all positioning mechanisms through the rigid transmission of the gear rack.

Description

Technical Field

[0001] The present invention relates to the technical field of welding devices, and more particularly to a display stand processing welding device. Background Art

[0002] The rectangular frame serves as the supporting component at the bottom of the display stand. It is a key link in the welding process during the production and manufacturing of the display stand. The existing technology uses four independent cylinders to drive the inner support blocks to fix the rectangular frame internally. The core reason is that there are differences in length and width between frames of different specifications. Before welding, the operator needs to adjust the X- and Y-axis spacing of the positioning mechanism through the slide unit to adapt to the frame size. If a unified drive is adopted, when the spacing of the positioning mechanism changes, the traditional unified transmission method (such as a rigid connecting rod or a fixed-length transmission belt) cannot adapt to the dynamic changes in the distance between each inner support block and the drive source. The inner support blocks farther away from the drive source may experience power transmission lag due to the longer transmission path, and the inner support blocks closer to the drive source may be damaged due to excessive force, causing the entire drive system to fail.

[0003] Although independent cylinders solve the spacing adaptation problem, they introduce new disadvantages: each cylinder requires separate adjustment of stroke and air pressure parameters. Not only is the debugging process cumbersome and time-consuming, but it is also difficult to achieve precise synchronization between the cylinders, resulting in uneven force on the inner corners of the frame, affecting clamping stability and welding accuracy. In addition, multiple independent cylinders increase the manufacturing, use and maintenance costs of the equipment.

[0004] In addition, the existing technology supports the frame from the inside through the inner support block, forming a one-dimensional constraint system. The high temperature generated during the welding process will cause thermal expansion of the metal. The inner support force alone cannot offset the outward deformation trend of the frame. In particular, the edge of the frame lacks reverse restraint force, which makes it very easy to open the mouth, resulting in an increase in the weld gap. On the other hand, due to the lack of external buckling pressure, the frame is in an unconstrained state in the direction perpendicular to the welding surface, and external force interference may cause warping deformation outside the plane of the frame. Summary of the Invention

[0005] The present invention provides a display stand processing and welding device to solve the above technical problems.

[0006] The present invention provides a display stand processing and welding device, comprising a body and a slide unit arranged on the top of the body. The top of the slide unit is provided with a plurality of rectangularly distributed positioning mechanisms, which are used to fix a rectangular frame formed by connecting a plurality of steel bars.

[0007] The positioning mechanism includes a sliding seat that is slidably connected to the slide unit and a mounting plate fixedly installed on the top of the sliding seat through two vertical plates. A positioning strip is fixedly installed on the top of the mounting plate. An internal support component for supporting the inner corner of the rectangular frame from the inside is provided on the top of the mounting plate. Both sides of the positioning strip are provided with a clamping component for clamping and fixing the rectangular frame from the outside.

[0008] The positioning mechanism also includes a control component for driving the inner support component and a traction component for pulling and driving the buckling component as the control component moves. An adaptive drive mechanism for driving the control component is provided in the middle of the slide unit. When the slide unit adjusts the position of the positioning mechanism, the adaptive drive mechanism can automatically adapt to the position change to synchronously drive several positioning mechanisms.

[0009] Furthermore, the slide unit includes a rotating table rotatably installed on the top of the machine body, a lower slide is fixedly installed on the top of the rotating table, two upper slides symmetrically installed front and back are slidably installed on the top of the lower slide, and the sliding seat is slidably installed on the top of the corresponding upper slide, and the two sliding seats opposite to each other on the left and right are symmetrical to each other, and a connecting beam is commonly connected between the two sliding seats opposite to each other on the front and back.

[0010] Furthermore, the inner support assembly includes a fixing plate fixedly mounted on the top of the mounting plate and a return spring 1 fixedly mounted on one side of the fixing plate close to the positioning bar, and the other end of the return spring 1 is fixedly mounted with an inner support block.

[0011] Furthermore, the buckling assembly includes a support plate fixedly mounted on the bottom of the mounting plate and a hinged frame fixedly mounted on the top of the support plate, the hinged frame is hinged with a claw, and the bottom of the claw is hinged with a slide rod that slides through the support plate.

[0012] Furthermore, the control component includes a mounting groove provided on one side of the mounting plate near the middle of the slide unit, a second slide groove is provided on the top of the mounting plate, an upper rack slidably connected to the top wall of the mounting groove is fixedly installed on the bottom of the inner support block through a connecting rod slidably connected to the second slide groove, a lower rack is slidably installed on the bottom wall of the mounting groove, the lower rack is meshed with the upper rack through gears, and a control rope is fixedly installed on the lower rack near the middle side of the slide unit.

[0013] Furthermore, a console is fixedly installed on the bottom of the support plate, and the traction assembly includes an extrusion block slidably installed on the top of the console and a pressure block fixedly installed on the bottom end of the slide rod and matched with the extrusion block.

[0014] Furthermore, a traction plate is fixedly installed on the side of the extrusion block close to the mounting plate, a connecting plate is fixedly installed on the top of the console, a second reset spring is fixedly installed between the connecting plate and the traction plate, a fixed pulley is fixedly installed on the side of the connecting plate away from the first reset spring and the top of the sliding seat, a traction rope is wrapped around the outer sides of the two fixed pulleys, a slide rail is slidably installed on the bottom of the mounting plate, and both ends of the traction rope are fixedly connected to the traction plate and the slide rail respectively.

[0015] Furthermore, an L-shaped rod is fixedly installed at the bottom of the inner support block, and a sliding groove is provided on the top of the mounting plate, which is slidably connected to the vertical section of the L-shaped rod perpendicular to the inner support block, and the end of the L-shaped rod is slidably installed in the slide rail parallel to the horizontal section of the inner support block.

[0016] Furthermore, the adaptive driving mechanism includes a circular table fixedly mounted on the top of the lower slide and a plurality of winding rollers rotatably mounted on the top of the circular table and distributed in a rectangular shape. The control rope is wound around the outside of the corresponding winding rollers. A protective cover is fixedly mounted on the top of the circular table, and a driving motor is fixedly mounted on the top of the protective cover. The output end of the driving motor is fixedly connected to the rotating shaft of one of the winding rollers.

[0017] Furthermore, a welding unit for welding the rectangular frame is provided on the top of the machine body.

[0018] The beneficial effects of the present invention are:

[0019] 1. In the present application, through the cooperation of the drive motor, winding roller, control rope and gear rack, when the slide adjusts the spacing of the positioning mechanism to adapt to frames of different specifications, the winding roller automatically retracts and releases the control rope through the belt linkage mechanism, and can accurately respond to changes in the distance between the positioning mechanisms without human intervention. Regardless of whether the frame length is stretched or shortened, or the width is expanded or reduced, the control rope can achieve dynamic tension balance through the free rotation of the winding roller, avoiding transmission slack or jamming due to changes in spacing. At the same time, the control rope transmits the single power of the drive motor to the inner support blocks of all positioning mechanisms synchronously through the rigid transmission of the gear rack, so that each inner support block moves to the inner corner of the frame with a completely consistent stroke and speed, achieving a breakthrough in the universality of adapting to frames of multiple specifications, and significantly improving the changeover efficiency and equipment utilization in multi-specification production scenarios.

[0020] 2. In the present application, the single power of the driving motor is synchronously transmitted to all positioning mechanisms through the transmission chain of the control rope-gear-traction rope, so as to realize the internal support and buckling fixation of the rectangular frame. The internal and external clamping of the internal support block and the clamping claws form a three-dimensional constraint system. The inner thrust of the internal support block and the outer buckling pressure of the clamping claw form a closed force couple. The inner support of the internal support block can offset the stress caused by the thermal deformation of welding, and the outer buckling of the clamping claw prevents the edge of the frame from warping. This three-dimensional constraint keeps the frame in a six-degree-of-freedom fixed state during the welding process, avoiding offset and poor welds. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the rotating platform, the lower slide platform, the upper slide platform, the connecting beam and the positioning mechanism of the present invention.

[0023] Figure 3 The present invention Figure 2 A partial enlarged view of part A.

[0024] Figure 4 The present invention Figure 2 A partial enlarged view of part B.

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the support plate, hinge frame, clamping claw and sliding rod of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the fixing plate, return spring 1 and inner support block of the present invention.

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the mounting plate and the control component part of the present invention.

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the traction plate, connecting plate, return spring 2, fixed pulley and traction rope part of the present invention.

[0029] In the figure: 1, machine body; 2, slide unit; 21, rotating table; 22, lower slide; 23, upper slide; 24, connecting beam; 3, positioning mechanism; 31, sliding seat; 32, vertical plate; 33, mounting plate; 34, inner support assembly; 341, fixing plate; 342, return spring 1; 343, inner support block; 35, buckling assembly; 351, support plate; 352, hinged frame; 353, claw; 354, slide rod; 36, traction assembly; 361, L-shaped rod; 362, extrusion block; 363, pressure block; 364, traction Guide plate; 365, connecting plate; 366, reset spring 2; 367, fixed pulley; 368, traction rope; 369, slide rail; 360, slide 1; 37, control assembly; 371, mounting groove; 372, connecting rod; 373, upper rack; 374, gear; 375, lower rack; 376, control rope; 377, slide 2; 38, control console; 39, positioning bar; 4, adaptive drive mechanism; 41, round table; 42, winding roller; 43, drive motor; 44, protective cover; 5, steel bar; 6, welding unit. DETAILED DESCRIPTION

[0030] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that these embodiments are discussed to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be varied without departing from the scope of protection of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0031] See Figure 1 and Figure 2 In this embodiment, a display stand processing and welding device is proposed, which includes a body 1 and a slide unit 2 arranged on the top of the body 1. The top of the slide unit 2 is provided with a plurality of rectangularly distributed positioning mechanisms 3, and the positioning mechanisms 3 are used to fix a rectangular frame formed by connecting a plurality of steel bars 5. The top of the body 1 is provided with a welding unit 6 for welding the rectangular frame.

[0032] See Figure 1 and Figure 2 The positioning mechanism 3 includes a sliding seat 31 slidably connected to the slide unit 2 and a mounting plate 33 fixedly mounted on the top of the sliding seat 31 through two vertical plates 32. A positioning bar 39 is fixedly mounted on the top of the mounting plate 33, and an inner support assembly 34 is provided on the top of the mounting plate 33 for supporting the inner corners of the rectangular frame from the inside.

[0033] See Figure 1 and Figure 2 The slide unit 2 includes a rotating table 21 rotatably mounted on the top of the body 1, a lower slide 22 is fixedly mounted on the top of the rotating table 21, and two upper slides 23 symmetrically mounted front and back on the top of the lower slide 22 are slidably mounted, and a sliding seat 31 is slidably mounted on the top of the corresponding upper slide 23, and the two sliding seats 31 opposite to each other on the left and right are symmetrical to each other, and a connecting beam 24 is commonly connected between the two sliding seats 31 opposite to each other on the front and back.

[0034] It should be noted that the lower slide 22 drives the upper slide 23 to move and the upper slide 23 drives the positioning mechanism 3 to move both by bidirectional screw transmission. The above-mentioned bidirectional screw transmission technology is common knowledge among people in this field, so it will not be repeated in this application.

[0035] See Figure 2 、 Figure 5 、 Figure 6 and Figure 7 The positioning mechanism 3 also includes a control component 37 for driving the internal support component 34. The internal support component 34 includes a fixed plate 341 fixedly installed on the top of the mounting plate 33 and a return spring 342 fixedly installed on the side of the fixed plate 341 close to the positioning bar 39. The other end of the return spring 342 is fixedly installed with an internal support block 343.

[0036] See Figure 5 、 Figure 6 and Figure 7 The control component 37 includes a mounting groove 371 provided on the mounting plate 33 near the middle of the slide unit 2, a second slide groove 377 is provided on the top of the mounting plate 33, and an upper rack 373 slidably connected to the top wall of the mounting groove 371 is fixedly installed on the bottom of the inner support block 343 through a connecting rod 372 slidably connected to the second slide groove 377, and a lower rack 375 is slidably installed on the bottom wall of the mounting groove 371, and the lower rack 375 is meshed with the upper rack 373 through a gear 374, and a control rope 376 is fixedly installed on the lower rack 375 near the middle of the slide unit 2.

[0037] See Figure 5 、 Figure 6 and Figure 7 An adaptive driving mechanism 4 for driving the control component 37 is provided in the middle of the slide unit 2. When the slide unit 2 adjusts the position of the positioning mechanism 3, the adaptive driving mechanism 4 can automatically adapt to the position change to synchronously drive several positioning mechanisms 3.

[0038] See Figure 1 、 Figure 2 、 Figure 4 and Figure 7 The adaptive drive mechanism 4 includes a circular table 41 fixedly mounted on the top of the lower slide 22 and a plurality of winding rollers 42 rotatably mounted on the top of the circular table 41 and distributed in a rectangular shape. The control rope 376 is wound around the outside of the corresponding winding roller 42. A protective cover 44 is fixedly mounted on the top of the circular table 41, and a drive motor 43 is fixedly mounted on the top of the protective cover 44. The output end of the drive motor 43 is fixedly connected to the rotating shaft of one of the winding rollers 42, and the plurality of winding rollers 42 are connected by belt drive.

[0039] When in use, the operator first adjusts the slide unit 2 according to the specifications of the rectangular frame to adjust the positioning mechanism 3 to the appropriate position. After the adjustment is completed, several steel bars 5 are spliced ​​into a frame, and then the frame is placed on top of several mounting plates 33, and the four right-angled sides of the frame are aligned with the four positioning bars 39, and the inner corners are aligned with the inner support blocks 343 (such as Figure 1 and Figure 2 As shown), at this time, the slide unit 2 locks the position of the positioning mechanism 3 through a mechanical structure, providing a stable reference for subsequent clamping and welding.

[0040] Next, the drive motor 43 is started, and the winding roller 42 synchronously reels the control rope 376. The initial stage of rewinding will first straighten the control rope 376 that has become loose due to the position adjustment of the positioning mechanism 3. After straightening, continuing to rewind will pull the control rope 376, driving the lower rack 375 to drive the upper rack 373 through the gear 374, so that the upper rack 373 pushes the inner support block 343 to move toward the inner corner of the rectangular frame and stretch the reset spring 342 until the inner support block 343 presses against the inner corner of the frame from the inside, thereby completing the inner support fixation of the rectangular frame.

[0041] See Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 8 , both sides of the positioning bar 39 are provided with a clamping assembly 35 for clamping and fixing the rectangular frame from the outside, and a traction assembly 36 for pulling and driving the clamping assembly 35 as the control assembly 37 moves. The clamping assembly 35 includes a support plate 351 fixedly mounted on the bottom of the mounting plate 33 and a hinged frame 352 fixedly mounted on the top of the support plate 351. A claw 353 is hinged on the hinged frame 352, and the bottom of the claw 353 is hinged with a slide rod 354 that slides through the support plate 351. An adaptation groove is provided at the hinge of the slide rod 354 and the claw 353, and the hinge axis of the slide rod 354 and the claw 353 is slidably mounted in the adaptation groove.

[0042] It should be noted that a torsion spring is provided at the hinge between the hinge frame 352 and the claw 353 , and the torsion spring forces the claw 353 to flip toward the side away from the positioning bar 39 .

[0043] See Figure 3 、 Figure 5 、 Figure 6 and Figure 8 A console 38 is fixedly installed at the bottom of the support plate 351, and the traction assembly 36 includes an extrusion block 362 slidably installed on the top of the console 38 and a pressure block 363 fixedly installed at the bottom end of the slide rod 354 and matched with the extrusion block 362.

[0044] See Figure 3 、 Figure 5 、 Figure 6 and Figure 8 A traction plate 364 is fixedly installed on the side of the extrusion block 362 close to the mounting plate 33, a connecting plate 365 is fixedly installed on the top of the console 38, a return spring 2 366 is fixedly installed between the connecting plate 365 and the traction plate 364, a fixed pulley 367 is fixedly installed on the side of the connecting plate 365 away from the return spring 1 342 and the top of the sliding seat 31, a traction rope 368 is wrapped around the outside of the two fixed pulleys 367, a slide rail 369 is slidably installed on the bottom of the mounting plate 33, and the two ends of the traction rope 368 are fixedly connected to the traction plate 364 and the slide rail 369 respectively.

[0045] See Figure 3 、 Figure 5 、 Figure 6 and Figure 8 An L-shaped rod 361 is fixedly installed at the bottom of the inner support block 343, and a sliding groove 360 ​​is provided on the top of the mounting plate 33, which is slidably connected to the vertical section of the L-shaped rod 361 perpendicular to the vertical section of the inner support block 343. The L-shaped rod 361 is slidably installed in the sliding rail 369 parallel to the end of the horizontal section of the inner support block 343.

[0046] When in use, when the inner support block 343 presses against the inner corner of the frame from the inside, the horizontal end of the L-shaped rod 361 slides in the groove of the slide rail 369, forcing the slide rail 369 to move toward the edge of the positioning bar 39 through the oblique thrust. At the same time, the sliding distance of the L-shaped rod 361 itself in the groove of the slide rail 369 can adapt to the displacement of the inner support block 343, avoiding movement interference caused by the rigid connection. As the slide rail 369 moves toward the edge of the positioning bar 39, it will pull the traction rope 368, and under the action of the two fixed pulleys 367, the pulling direction is changed The pull plate 364 is then pulled to the side close to the connecting plate 365, thereby pulling the traction plate 364 and compressing the return spring 2 366, so that the extrusion block 362 squeezes the pressure block 363, pushes up the slide bar 354, and drives the claw 353 to flip toward the edge of the frame. When the pressure block 363 is pushed up to contact the top surface of the extrusion block 362, the claw 353 clamps the edge of the clamping frame. After the claw 353 clamps the edge of the clamping frame, the inner support block 343 continues to move a short distance and presses against the inner corner of the frame from the inside. At this point, the internal and external clamping is completed synchronously.

[0047] After the clamping is completed, the rotating table 21 drives the four joints of the rectangular frame to rotate to the bottom of the welding unit 6 in sequence, and the four corner joints of the rectangular frame are welded one by one through the welding unit 6. After the welding is completed, the driving motor 43 is reversed, and the winding roller 42 rotates counterclockwise to release the control rope 376. The control rope 376 is relaxed to release the tension on the lower rack 375, and the reset spring 1 342 pushes the inner support block 343 to retract, and the gear 374 rack is driven in the reverse direction to make the inner support block 343 disengage from the inner corner of the frame. At the same time, the retraction of the inner support block 343 drives the L-shaped rod 361 and the slide rail 369 to slide in the opposite direction and reset. Then, the reset spring 2 366 releases the elastic potential energy to push the traction plate 364 to reset, driving the extrusion block 362 away from the pressure block 363, and the torsion spring drives the clamping claw 353 to flip and reset, and the slide bar 354 falls back. Finally, the operator removes the welded frame. If a new specification frame needs to be welded, unlock the slide unit 2 to adjust the position of the positioning mechanism 3 and enter the next round of production cycle.

[0048] It should be noted that the displacement of the welding unit 6 and the welding technology are common knowledge to those skilled in the art, and therefore will not be described in detail in this application.

[0049] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. However, obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A display stand processing and welding device, comprising: A machine body (1) and a slide unit (2) arranged on the top of the machine body (1), characterized in that a plurality of rectangularly distributed positioning mechanisms (3) are provided on the top of the slide unit (2), and the positioning mechanisms (3) are used to fix a rectangular frame formed by connecting a plurality of steel bars (5); the positioning mechanism (3) includes a sliding seat (31) slidably connected to the slide unit (2) and a mounting plate (33) fixedly mounted on the top of the sliding seat (31) through two vertical plates (32), a positioning strip (39) is fixedly mounted on the top of the mounting plate (33), an inner support assembly (34) for supporting the inner corner of the rectangular frame from the inside is provided on the top of the mounting plate (33), and a pressing assembly (35) for pressing and fixing the rectangular frame from the outside is provided on both sides of the positioning strip (39); The positioning mechanism (3) further comprises a control component (37) for driving the inner support component (34) and a traction component (36) for traction-driven buckling component (35) as the control component (37) moves. An adaptive driving mechanism (4) for driving the control component (37) is provided in the middle of the slide unit (2). When the slide unit (2) adjusts the position of the positioning mechanism (3), the adaptive driving mechanism (4) can automatically adapt to the position change to synchronously drive the plurality of positioning mechanisms (3). The inner support assembly (34) includes a fixing plate (341) fixedly mounted on the top of the mounting plate (33) and a return spring (342) fixedly mounted on the side of the fixing plate (341) close to the positioning bar (39), and the other end of the return spring (342) is fixedly mounted with an inner support block (343); the buckling assembly (35) includes a support plate (351) fixedly mounted on the bottom of the mounting plate (33) and a hinged frame (352) fixedly mounted on the top of the support plate (351), a claw (353) is hinged on the hinged frame (352), and the bottom of the claw (353) is hinged with a slide rod (354) that slides through the support plate (351); The bottom of the support plate (351) is fixedly mounted with a console (38), and the traction assembly (36) includes an extrusion block (362) slidably mounted on the top of the console (38) and a pressure block (363) fixedly mounted at the bottom of the slide bar (354) and matched with the extrusion block (362); a traction plate (364) is fixedly mounted on the side of the extrusion block (362) close to the mounting plate (33), and a connecting plate (365) is fixedly mounted on the top of the console (38). A second return spring (366) is fixedly installed between the connecting plate (365) and the traction plate (364), a fixed pulley (367) is fixedly installed on the side of the connecting plate (365) away from the first return spring (342) and the top of the sliding seat (31), a traction rope (368) is wound around the outer sides of the two fixed pulleys (367), a slide rail (369) is slidably installed on the bottom of the mounting plate (33), and the two ends of the traction rope (368) are fixedly connected to the traction plate (364) and the slide rail (369) respectively; An L-shaped rod (361) is fixedly installed at the bottom of the inner support block (343), and a slide groove (360) is provided on the top of the mounting plate (33) and is slidably connected to the vertical section of the L-shaped rod (361) perpendicular to the inner support block (343). The end of the L-shaped rod (361) is slidably installed in the slide rail (369) parallel to the horizontal section of the inner support block (343).

2. A display stand processing and welding device according to claim 1, characterized in that: The slide unit (2) comprises a rotating platform (21) rotatably mounted on the top of the machine body (1); a lower slide platform (22) is fixedly mounted on the top of the rotating platform (21); two upper slide platforms (23) symmetrical in front and back are slidably mounted on the top of the lower slide platform (22); a sliding seat (31) is slidably mounted on the top of the corresponding upper slide platform (23); the two sliding seats (31) opposite to each other on the left and right are symmetrical to each other; and a connecting beam (24) is commonly connected between the two sliding seats (31) opposite to each other on the front and back.

3. The display stand processing and welding device according to claim 2, characterized in that: The control assembly (37) includes a mounting groove (371) provided on one side of the mounting plate (33) near the middle of the slide unit (2); a second slide groove (377) is provided on the top of the mounting plate (33); an upper rack (373) slidably connected to the top wall of the mounting groove (371) is fixedly installed on the bottom of the inner support block (343) through a connecting rod (372) slidably connected to the second slide groove (377); a lower rack (375) is slidably installed on the bottom wall of the mounting groove (371); the lower rack (375) is meshed with the upper rack (373) through a gear (374); and a control rope (376) is fixedly installed on the lower rack (375) near the middle of the slide unit (2).

4. The display stand processing and welding device according to claim 3, characterized in that: The adaptive driving mechanism (4) comprises a circular platform (41) fixedly mounted on the top of the lower slide (22) and a plurality of winding rollers (42) rotatably mounted on the top of the circular platform (41) and distributed in a rectangular shape. The control rope (376) is wound around the outside of the corresponding winding rollers (42). A protective cover (44) is fixedly mounted on the top of the circular platform (41). A driving motor (43) is fixedly mounted on the top of the protective cover (44). The output end of the driving motor (43) is fixedly connected to the rotating shaft of one of the winding rollers (42).

5. The display stand processing and welding device according to claim 1, characterized in that: A welding unit (6) for welding a rectangular frame is provided on the top of the machine body (1).

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