Metal furniture plate welding and overturning device

Abstract

The present application relates to the technical field of metal piece welding, in particular to a metal furniture plate welding and overturning device, comprising: a rotating table installed on a welding machine workbench, wherein a dispersion pressing plate mechanism and a shape limiter are arranged on the rotating table; the rotating table has a gap, and carries two plates and abuts against the side edges of the plates to limit the two plates and align the joint of the two plates with the gap on the rotating table; the dispersion pressing plate mechanism can gently press the plates on the rotating table at dispersed points; the shape limiter forcibly keeps the shape of the plates to prevent the plates from deforming, and when the plates are overturned after one side is welded, the shape limiter mainly supports the area close to the weld, limits the area around the weld, and forcibly keeps the shape of the area around the weld, thereby preventing the weld from shaking and moving, protecting the just-welded weld, and ensuring the stable formation of the weld.

Description

Technical Field

[0001] This invention relates to the field of metal welding technology, and more specifically, to a metal furniture panel welding and flipping device. Background Technology

[0002] In the manufacturing process of metal furniture, products such as steel filing cabinets, wardrobes, storage shelves, and office desk frames, are mainly constructed from cold-rolled steel sheets, stainless steel sheets, or galvanized sheets. These sheets are cut, stamped, and bent, and then welded together. These types of metal furniture typically feature large planar dimensions, thin thickness, poor rigidity, and pre-coated or film-coated surfaces. To ensure the structural strength and appearance quality of the cabinet or shelf, it is often necessary to weld the seams of the sheets on both sides, or to alternately weld reinforcing ribs, hinge seats, hanging plates, and other accessories to both sides of the sheet. This necessitates flipping and repositioning the sheet workpiece at the same welding station.

[0003] In existing technologies, clamps or grippers are generally used to apply local clamping force to the edge of the plate to fix it in place before flipping it over. However, rigid grippers are very likely to cause crushing, deformation or denting of the plate edge, which damages the flatness of the plate. Moreover, when pressure is applied locally to one or both sides of the plate, most of the plate is not effectively supported. During the flipping process, the plate is very prone to shaking and wobbling. The wobbling of the plate will disrupt the geometric consistency of the newly welded seam, which can easily lead to defects such as incomplete fusion, misalignment, porosity and internal cracks. Summary of the Invention

[0004] The purpose of this invention is to provide a metal furniture panel welding and flipping device to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides a metal furniture sheet welding and turning device, comprising: a turntable installed on the workbench of a welding machine, wherein a dispersion pressure plate mechanism and a shape limiter are provided on the turntable; The turntable has a gap, and the turntable supports two plates and abuts against the sides of the plates to restrain the two plates so that the joints of the two plates are aligned with the gap on the turntable. The dispersed pressure plate mechanism can gently press the sheet material onto the turntable at dispersed points; The shape limiter forces the shape of the sheet material to be maintained, thereby preventing deformation of the sheet material.

[0006] Furthermore, the turntable includes a motor base and a support plate correspondingly installed at the edge of the welding machine workbench, a motor installed on the motor base, two connecting discs connected to the output shaft of the motor and rotatably installed on the support plate, with the two connecting discs facing each other, a base plate installed between the two connecting discs, a gap in the middle of the base plate, side edge plates fixed on the two short sides of the base plate, two first pairs of edge plates fixed on one long side of the base plate, with the two first pairs of edge plates respectively located on both sides of the gap on the base plate, two second pairs of edge plates linearly movably installed on the base plate, with the two second pairs of edge plates respectively facing the two first pairs of edge plates, two sets of several fixed sleeve plates fixed on the side of the base plate, a pull core slidably inserted into the fixed sleeve plate, the pull core being connected to the back of the second pairs of edge plates, and a hand-tightening bolt screwed on the fixed sleeve plate. Tightening the hand-tightening bolt can press the pull core into place within the fixed sleeve plate.

[0007] Furthermore, the dispersion pressure plate mechanism includes: a block and a guide head installed on the top of the first pair of edge plates and the second pair of edge plates, with a gap between the block and the guide head, a movable round rod inserted laterally into the block and extending outward into the guide head, a handle obliquely inserted and fixed on the exposed part of the movable round rod, a pressure strip connected to the end of the handle, a conical sleeve disposed in the block, the movable round rod passing through the conical sleeve, and a plurality of rubber ribs circumferentially installed on the movable round rod; By bending the movable round rod, the movable round rod moves laterally and rotates on the block and the guide head; Several of the rubber ribs are located on the outside of the large diameter opening of the conical sleeve.

[0008] Furthermore, the dispersion pressure plate mechanism further includes: a first electric push rod horizontally mounted on the connecting plate, a mounting back plate connected to the output shaft of the first electric push rod, a second electric push rod mounted on the mounting back plate, the second electric push rod being perpendicular to the base plate, a strip platform connected to the output end of the second electric push rod, and a plurality of rubber protrusions mounted on the bottom of the strip platform.

[0009] Furthermore, the limiting device includes: two end handles movably mounted on the base plate, the two end handles facing each other and toward the gap on the base plate, a plurality of fork-type elastic clamps respectively mounted on both ends of the end handles, and a raised edge plate mounted on the front end of the fork-type elastic clamps; The raised edge plate widens the opening of the fork-type elastic clamp. The back of the end handle is connected to the output end of the third electric actuator.

[0010] Furthermore, the worktable of the welding machine is provided with a lower seat and a fourth electric push rod, a vertical fork is vertically slidably inserted in the lower seat, the output end of the fourth electric push rod is connected upward to the vertical fork, and several electromagnetic blocks are installed on the vertical fork; Several of the electromagnetic pads are arranged in an arc shape and are located directly below the connecting disc.

[0011] Furthermore, a vibrator is mounted on the back of the end handle.

[0012] Furthermore, the fork-shaped elastic clamp is hollow, and the hollow part is connected to the air outlet of the fan. The side of the fork-shaped elastic clamp is grid-shaped.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This metal furniture panel welding and flipping device's turntable not only precisely positions and fixes two panels for welding, but also rotates the panel after welding one side, flipping it to the other side for welding or to any angle without manual flipping. The turntable uses a method that restricts the panel's spatial position and clamps it from the side, securing it for flipping. The clamping force acts directly on the side of the panel, preventing deformation or dents and protecting its flatness. The turntable integrates panel support, welding, and flipping into one process; after welding one side, the panel can be flipped directly without needing to clamp or flip it after welding. The plates are then re-clamped, ensuring high precision and simplified operation. A distributed pressure plate mechanism provides multi-point, flexible clamping to the edges and center of the plates, further dispersing the clamping force and preventing damage from concentrated clamping. This significantly increases the support area available to the plates during flipping, improving stability and preventing shaking or wobbling. A shape limiter provides focused support to the area near the weld when flipping the plates after one side has been welded, restricting the area around the weld and forcibly maintaining its shape. This further prevents shaking and wobbling at the weld, protecting the newly welded area and ensuring stable weld formation, preventing defects such as incomplete fusion, misalignment, porosity, and internal cracks. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 A perspective view of the present invention is shown; Figure 2 A second perspective view of the present invention is shown; Figure 3 A third perspective view of the present invention is shown; Figure 4 A fourth perspective view of the present invention is shown; Figure 5 A fifth perspective view of the present invention is shown; Figure 6 The present invention is shown. Figure 2 Enlarged view of point A; Figure 7 The present invention is shown. Figure 3 Enlarged view of point B; Figure 8 The present invention is shown. Figure 3 Enlarged view of point C; Figure 9 The present invention is shown. Figure 4 Enlarged view of point D; Figure 10 The present invention is shown. Figure 5 Enlarged view of point E.

[0016] In the figure, the same reference numerals represent the same structural element, wherein: 1. Welding machine; 2. Turntable; 21. Motor base; 22. Support plate; 23. Motor; 24. Connecting disc; 25. Base plate; 26. Side edge plate; 27. First pair of edge plates; 28. Second pair of edge plates; 29. ​​Fixed sleeve plate; 291. Pull core; 292. Hand-tightening bolt; 3. Distributed pressure plate mechanism; 31. Block; 32. Guide head; 33. Round rod; 34. Handle; 35. Pressure strip; 36. Conical sleeve; 37. Rubber rib; 38. First electric push rod; 39. Mounting back plate; 391. Second electric push rod; 392. Strip platform; 393. Rubber protrusion; 4. Shape limiter; 41. End handle; 42. Fork-type elastic chuck; 43. Warping edge plate; 5. Lower seat; 6. Fourth electric push rod; 7. Vertical fork; 8. Electromagnetic block; 9. Vibrator. Detailed Implementation

[0017] like Figures 1-5 As shown, a metal furniture panel welding and turning device includes: a turntable 2 installed on the workbench of a welding machine 1, and a dispersing pressure plate mechanism 3 and a limiting device 4 are provided on the turntable 2; There is a gap in the turntable 2. The turntable 2 supports two boards and abuts against the sides of the boards to restrain the two boards and align the joints of the two boards with the gap in the turntable 2. The distributed pressure plate mechanism 3 can gently press the sheet material onto the turntable 2 at distributed points; The shape retainer 4 forcibly maintains the shape of the sheet material to prevent deformation. Specifically, the turntable 2 of this metal furniture panel welding and flipping device can not only accurately position and fix two panels for welding, but also rotate the panel after welding one side, flipping it to the other side for welding or flipping it to any angle without manual flipping. Furthermore, the turntable 2 uses a method that restricts the panel's spatial position and clamps it from the side, securing it for flipping. The clamping force acts directly on the side of the panel, preventing deformation or dents and protecting its flatness. The turntable 2 combines panel support, welding, and flipping into one process; after welding one side of the panel, it can be flipped directly without needing to clamp the panel after welding. After flipping, the plate is re-clamped with high precision and simplified operation. The distributed pressure plate mechanism 3 provides multi-point distributed flexible pressure on the edges and center of the plate, further dispersing the clamping force and avoiding damage to the plate due to concentrated clamping force. At the same time, it greatly increases the support area that the plate can receive when flipping, improving the stability of the plate during flipping and preventing the plate from shaking and wobbling. The shape limiter 4 can focus on supporting the area near the weld when flipping the plate after one side is welded, restricting the area around the weld and forcibly maintaining the shape of the area around the weld. This further focuses on preventing shaking and wobbling at the weld, protecting the newly welded weld, ensuring the weld is steadily formed, and preventing defects such as incomplete fusion, misalignment, porosity, and internal cracks.

[0018] Optionally, the turntable 2 includes a motor base 21 and a support plate 22 correspondingly installed at the edge of the worktable surface of the welding machine 1, a motor 23 installed on the motor base 21, two connecting plates 24 connected to the output shaft of the motor 23 and rotatably installed on the support plate 22, with the two connecting plates 24 facing each other, a base plate 25 installed between the two connecting plates 24, a gap in the middle of the base plate 25, side edge plates 26 fixed on the two short sides of the base plate 25, and two side edge plates 26 fixed on one long side of the base plate 25. The first pair of edge plates 27, with the two first pair of edge plates 27 respectively located on both sides of the gap on the base plate 25; two second pair of edge plates 28 linearly movably installed on the base plate 25, with the two second pair of edge plates 28 respectively opposite to the two first pair of edge plates 27; two sets of several fixed sleeve plates 29 fixed on the side of the base plate 25; a pull core 291 slidably inserted into the fixed sleeve plate 29, the pull core 291 being connected to the back of the second pair of edge plates 28; and a hand-tightening bolt 292 screwed on the fixed sleeve plate 29. Tightening the hand-tightening bolt 292 can press the pull core 291 into place within the fixed sleeve plate 29. During processing, two plates to be welded together are placed on the base plate 25 and pressed against the two side edge plates 26 and the two first pair of edge plates 27 respectively. At this time, the two sides of the plates are already against the object. Then, the two second pair of edge plates 28 are pulled to press against the sides of the plates, keeping the second pair of edge plates 28 in close contact with the plates, so that the second pair of edge plates 28 can press laterally against the sides of the plates. During the pulling of the second pair of edge plates 28, the pull core 291 is simultaneously pulled out from the fixed sleeve plate 29. Then, the hand-tightening bolt 292 is tightened to press the pull core 291, restricting it and preventing it from retracting, thereby fixing the second pair of edge plates 28. The plates are restricted and fixed by pressing tightly against the sides of the plates, without applying pressure to the plates. The localized and rigid clamping force will not cause deformation or dents in the plate, ensuring that the flatness of the plate is protected from damage. At this time, the edges of the two plates to be welded are joined at the gap on the base plate 25, and the welding machine 1 can be operated to perform welding. After the welding of this side is completed, the motor 23 can be started immediately, and the base plate 25 can be rotated through the connecting plate 24, thereby flipping the plate to the other side for welding or flipping the plate to any angle, combining the welding and flipping of the plate support into one. After the plate is welded on one side, it can be flipped directly without the need to clamp the plate after welding and re-clamp the plate after flipping. It has high precision and simplified operation. Another motor is installed on the support plate 22 to drive the connecting plate 24 on the support plate 22. The motor drives the connecting plate 24 to rotate actively, ensuring that the two connecting plates 24 rotate synchronously to flip the plate.

[0019] Optionally, the dispersion pressure plate mechanism 3 includes: a block 31 and a guide head 32 installed on the top of the first pair of edge plates 27 and the second pair of edge plates 28, with a gap between the block 31 and the guide head 32, a movable round rod 33 that is laterally inserted into the block 31 and extends outward into the guide head 32, a handle 34 that is obliquely inserted and fixed on the exposed part of the movable round rod 33, a pressure strip 35 connected to the end of the handle 34, a conical sleeve 36 disposed in the block 31, the movable round rod 33 passing through the conical sleeve 36, and a plurality of rubber ribs 37 circumferentially installed on the movable round rod 33; By bending the movable round rod 33, the movable round rod 33 moves laterally and rotates on the block 31 and the guide head 32; Several rubber ribs 37 are located on the outer side of the large-diameter opening of the conical sleeve 36. After the second pair of edge plates 28 are tightly pressed against the side of the plate, the handle 34 is grasped and pulled upwards while being pulled horizontally to one side, thereby pulling the movable round rod 33 horizontally and rotating it until the pressure strip 35 is pressed onto the plate on the base plate 25. When the movable round rod 33 moves horizontally, several rubber ribs 37 are pulled and squeezed into the conical sleeve 36. As the diameter of the conical sleeve 36 becomes smaller and smaller, the friction between the rubber ribs 37 and the conical sleeve 36 also increases. As the diameter increases, several rubber ribs 37 are gradually squeezed into the conical sleeve 36, restricting the movable round rod 33 so that it cannot move flexibly and easily. This keeps the pressure strip 35 pressed against the plate. Several pressure strips 35 press the plate at the edge, ensuring that the plate is not subjected to strong clamping force, improving the fixing effect of the plate, preventing the plate from falling during flipping, and greatly increasing the support area that the plate can obtain when flipping with dispersed flexible pressure, improving the stability of the plate during flipping, and preventing the plate from shaking and wobbling.

[0020] Optionally, the dispersion pressing mechanism 3 further includes: a first electric push rod 38 horizontally mounted on the connecting disc 24; a mounting back plate 39 connected to the output shaft of the first electric push rod 38; a second electric push rod 391 mounted on the mounting back plate 39, the second electric push rod 391 being perpendicular to the base plate 25; a strip platform 392 connected to the output end of the second electric push rod 391; and a plurality of rubber protrusions 393 mounted on the bottom of the strip platform 392; and a second pair of edge plates 28 abutting against the side of the plate. After that, the first electric push rod 38 is activated to push the mounting back plate 39 forward until it is pushed above the middle of the plate. Then, the second electric push rod 391 is activated to push the strip platform 392 down until several rubber protrusions 393 are pressed on the plate, pressing the plate in the middle. With the help of several pressure strips 35, the support area that the plate can obtain when flipping is further increased, improving the stability of the plate when flipping, preventing the plate from shaking and wobbling, and ensuring that the plate can be firmly fixed to prevent the plate from shaking during welding or falling off when flipping.

[0021] Optionally, the limiting device 4 includes: two end handles 41 movably mounted on the base plate 25, the two end handles 41 facing each other and toward the gap on the base plate 25, a plurality of fork-type elastic clamps 42 respectively mounted on both ends of the end handles 41, and a raised edge plate 43 mounted on the front end of the fork-type elastic clamps 42. The raised edge plate 43 expands the opening of the fork-type elastic clamp 42 outward; The back of the end handle 41 is connected to the output end of the third electric push rod. The opening of the fork-type elastic clamp 42 is smaller than the thickness of the plate. Before flipping the plate, the third electric push rod is activated to slide the end handle 41 on the base plate 25. The plate is inserted into the fork-type elastic clamp 42 along the curved edge plate 43, which opens it up. At the same time, the fork-type elastic clamp 42 clamps the plate until the fork-type elastic clamps 42 on both sides close, forming a complete clamping and limiting shape on both sides of the weld on the plate. This forcibly maintains the shape of the area on both sides of the weld, preventing deformation of other parts from being transmitted to the weld. In particular, it provides key support around the weld during flipping to prevent shaking and wobbling at the weld of the plate, protects the newly welded weld, ensures the weld is steadily formed, and prevents defects such as incomplete fusion, misalignment, porosity, and internal cracks.

[0022] Optionally, the worktable of the welding machine 1 is provided with a lower seat 5 and a fourth electric push rod 6, a vertical fork 7 is vertically slidably inserted in the lower seat 5, the output end of the fourth electric push rod 6 is connected upward to the vertical fork 7, and a plurality of electromagnetic pads 8 are installed on the vertical fork 7; Several electromagnetic pads 8 are arranged in an arc shape and located directly below the connecting plate 24. After the plate is flipped into position, the electromagnetic pads 8 are energized to generate magnetic attraction. At the same time, the fourth electric push rod 6 is activated to push the vertical fork 7 upward until the electromagnetic pads 8 are attached to the connecting plate 24, thereby attracting the connecting plate 24 and firmly fixing it in the current state. This maintains the stability of the base plate 25 and the plate, preventing slight circumferential deviation or play in the connecting plate 24 after flipping, especially when welding the plate in a boat-shaped welding manner. This ensures the stability of the plate and guarantees the quality of the welding process.

[0023] Optionally, a vibrator 9 is installed on the back of the end handle 41. The vibrator 9 is activated at the same time as the welding is temporarily stopped and the plate is flipped. The excitation force generated by the vibrator 9 is transmitted to the plate through the end handle 41 and the fork-type elastic clamp 42 in the form of high-frequency micro-amplitude vibration, thereby eliminating the internal stress on the plate, effectively controlling the superposition of internal stress, and greatly reducing the time and difficulty of removing internal stress in the later stage.

[0024] Optionally, the fork-type flexible chuck 42 is hollow, and the hollow part is connected to an external fan outlet. The side of the fork-type flexible chuck 42 is grid-shaped. When welding is completed or each time it is flipped, the external fan can be started to send air into the fork-type flexible chuck 42. Finally, the air blows out from the side of the fork-type flexible chuck 42. Since the fork-type flexible chuck 42 is clamping the plate at this time, the air blown out in the opposite direction directly acts on the weld, reducing the accumulation of welding heat. The pre-cooling method reduces the time required for the subsequent natural cooling of the plate.

[0025] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A metal furniture panel welding and flipping device, characterized in that, include: A turntable (2) is installed on the worktable of the welding machine (1), and a distribution pressure plate mechanism (3) and a limiting device (4) are provided on the turntable (2). The turntable (2) has a gap. The turntable (2) supports two plates and abuts against the sides of the plates to restrict the two plates so that the joints of the two plates are aligned with the gap on the turntable (2). The dispersed pressing plate mechanism (3) can gently press the plate onto the turntable (2) at dispersed points; The shape limiter (4) forces the shape of the sheet to be maintained in order to prevent the sheet from deforming.

2. The metal furniture panel welding and flipping device as described in claim 1, characterized in that, The turntable (2) includes a motor base (21) and a support plate (22) correspondingly installed at the edge of the worktable surface of the welding machine (1), a motor (23) installed on the motor base (21), two connecting plates (24) connected to the output shaft of the motor (23) and rotatably installed on the support plate (22), and the two connecting plates (24) facing each other, a base plate (25) installed between the two connecting plates (24), the base plate (25) having a gap in the middle, side edge plates (26) fixed on the two short sides of the base plate (25), and two second side edge plates (26) fixed on the long side of one side of the base plate (25). A pair of edge plates (27), and the two first pair of edge plates (27) are respectively located on both sides of the gap on the base plate (25), two second pair of edge plates (28) are linearly movably installed on the base plate (25), the two second pair of edge plates (28) are respectively opposite to the two first pair of edge plates (27), two sets of several fixed sleeve plates (29) are fixed on the side of the base plate (25), a pull core (291) is slidably inserted into the fixed sleeve plate (29), the pull core (291) is connected to the back of the second pair of edge plates (28), and a hand-tightening bolt (292) is screwed on the fixed sleeve plate (29). Tightening the hand-tightening bolt (292) can press the pull core (291) into place within the fixed sleeve plate (29).

3. The metal furniture panel welding and flipping device as described in claim 2, characterized in that, The dispersion pressure plate mechanism (3) includes: a block (31) and a guide head (32) installed on the top of the first pair of edge plates (27) and the second pair of edge plates (28), with a gap between the block (31) and the guide head (32), a movable round rod (33) inserted laterally into the block (31) and extending outward into the guide head (32), a handle (34) obliquely inserted and fixed on the exposed part of the movable round rod (33), a pressure strip (35) connected to the end of the handle (34), a conical sleeve (36) set in the block (31), the movable round rod (33) passing through the conical sleeve (36), and a number of rubber ribs (37) circumferentially installed on the movable round rod (33). By bending the movable rod (33), the movable rod (33) moves laterally and rotates on the block (31) and the guide head (32); Several of the rubber ribs (37) are located on the outside of the large diameter opening of the conical sleeve (36).

4. The metal furniture panel welding and flipping device as described in claim 3, characterized in that, The dispersion pressure plate mechanism (3) further includes: a first electric push rod (38) horizontally mounted on the connecting plate (24), a mounting back plate (39) connected to the output shaft of the first electric push rod (38), a second electric push rod (391) mounted on the mounting back plate (39), the second electric push rod (391) being perpendicular to the base plate (25), a strip platform (392) connected to the output end of the second electric push rod (391), and a plurality of rubber protrusions (393) mounted on the bottom of the strip platform (392).

5. The metal furniture panel welding and flipping device as described in claim 4, characterized in that, The limiting device (4) includes: two end handles (41) movably mounted on the base plate (25), the two end handles (41) facing each other and toward the gap on the base plate (25), a plurality of fork-type elastic clamps (42) respectively mounted on both ends of the end handles (41), and a raised edge plate (43) mounted on the front end of the fork-type elastic clamps (42). The raised edge plate (43) causes the opening of the fork-type elastic clamp (42) to expand outward; The back of the end handle (41) is connected to the output end of the third electric push rod.

6. The metal furniture panel welding and flipping device as described in claim 5, characterized in that, The welding machine (1) has a lower seat (5) and a fourth electric push rod (6) on its worktable. A vertical fork (7) is vertically inserted into the lower seat (5). The output end of the fourth electric push rod (6) is connected upward to the vertical fork (7). Several electromagnetic blocks (8) are installed on the vertical fork (7). Several of the electromagnetic pads (8) are arranged in an arc shape and are located directly below the connecting plate (24).

7. A metal furniture panel welding and flipping device as described in claim 6, characterized in that, A vibrator (9) is mounted on the back of the end handle (41).

8. The metal furniture panel welding and flipping device as described in claim 7, characterized in that, The fork-type elastic clamp (42) is hollow, and the hollow part is connected to the air outlet of the fan. The side of the fork-type elastic clamp (42) is grid-shaped.

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