A clamping device for welding car seat back velvet

Abstract

The present invention relates to the technical field of clamping equipment, and discloses a clamping equipment for welding velvet cloth on the back panel of an automobile seat, comprising a supporting base, a placing mechanism and a welding mechanism being provided on the supporting base, side support plates being vertically provided on the supporting base, a flattening mechanism for flattening the velvet cloth being slidably provided on the side support plates, the flattening mechanism comprising a flattening support plate slidably arranged on the side support plate, a flattening smooth tube being provided on the flattening support plate, a sliding mechanism for flattening the velvet cloth being provided at the lower end of the flattening smooth tube, a positioning mechanism for positioning the velvet cloth being provided on the flattening support plate, a top supporting mechanism for driving the flattening support plate to slide being slidably provided on the placing mechanism, the present invention realizes the flattening and positioning of the velvet cloth by driving the sliding mechanism connected thereto to move synchronously through the flattening smooth tube, blocks the contact between the workers and the welding structure, avoids the high temperature of the welding device from causing harm to the workers' bodies, and improves the efficiency of welding the velvet cloth on the back panel of an automobile seat.

Description

Technical Field

[0001] The invention relates to the technical field of clamping equipment, in particular to a clamping equipment for welding velvet cloth on a car seat back panel. Background Art

[0002] The clamping equipment for welding velvet on the back panel of a car seat is a device specially used to fix the velvet material on the back panel of the seat during the production process of the car seat. Its main function is to ensure close contact between the velvet and the back panel during the welding process to ensure welding quality and efficiency.

[0003] The existing clamping equipment for welding the velvet cloth on the back of a car seat is usually composed of a clamp that is pneumatically or mechanically clamped and is arranged on a bracket. When in use, workers usually need to flatten and fix the velvet cloth in a multi-point step-by-step fixing manner, so as to clamp and fix the car seat back and the velvet cloth. Since the workers need to operate the clamp to fix the velvet cloth in time after flattening, the operation is cumbersome and the efficiency is low. At the same time, it is not easy to control the flattening force, resulting in uneven tightness of the velvet cloth at different points, affecting the service life of the seat back. In addition, when using the existing clamping equipment for welding the velvet cloth on the back of a car seat, in order to avoid the high temperature of the welding device from causing harm to the worker's body, it is usually necessary to arrange a protective device after the clamping is completed, which further reduces the efficiency of welding the velvet cloth on the back of a car seat. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a clamping device for welding velvet cloth on a car seat back panel.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is: a clamping device for welding car seat back panel flannel, comprising a supporting base, a placing mechanism for placing the seat back panel and the flannel on the supporting base, a welding mechanism for welding the seat back panel and the flannel in cooperation with the placing mechanism on the supporting base, a side support plate vertically provided on the supporting base, a flattening mechanism for flattening the flannel slidably provided on the side support plate, the flattening mechanism comprising a flattening support plate slidably provided on the side support plate, a flattening smooth tube provided on the flattening support plate, a plurality of groups of flattening smooth tubes are provided, and the plurality of groups of flattening smooth tubes are provided. The above-mentioned smooth expansion tubes are all slidably sleeved with smooth expansion sleeves, a first connecting rod hinged to the adjacent smooth expansion sleeve is hinged on one side of the smooth expansion tube, a second connecting rod hinged to the adjacent smooth expansion sleeve is hinged on the other side of the smooth expansion tube, the first connecting rod and the second connecting rod on the same side are hinged to each other, and a third connecting rod and a fourth connecting rod hinged to each other are hinged on two adjacent groups of smooth expansion tubes, a sliding mechanism for flattening the velvet is provided at the lower end of the smooth expansion tube, a positioning mechanism for positioning the velvet is provided on the flattening support plate, and a top supporting mechanism for driving the flattening support plate to slide is slidably provided on the placement mechanism.

[0006] As an improvement, the placement mechanism includes a placement sleeve arranged on a supporting base, a placement plate is provided at the upper end of the placement sleeve, a placement baffle is slidably provided on the placement plate, and a plurality of groups of placement baffles are equidistantly arranged along the circumferential direction of the placement plate.

[0007] As an improvement, the supporting mechanism includes a supporting sleeve slidingly arranged on the placing sleeve, a supporting sliding column is arranged in the supporting sleeve, a supporting block is arranged on the supporting base, a rotating column is rotatably arranged on the supporting block, a spiral groove is spirally arranged on the rotating column and is slidably connected to the supporting sliding column, a supporting spring connected to the supporting sleeve is arranged on the rotating column, a driving sleeve moving with the supporting sleeve is arranged on the supporting base, and the driving sleeve is rotatably connected to the flattening support plate.

[0008] As an improvement, a fixed block is provided on the supporting base, a transmission slide column is rotatably provided on the fixed block, the transmission slide column is a regular polygonal structure, a driving sleeve is slidably sleeved on the transmission slide column, a driving spiral groove is spirally arranged on the outer side of the driving sleeve, and a matching slider is provided on the side support plate which is slidably connected to the driving spiral groove.

[0009] As an improvement, the sliding mechanism includes a sliding base arranged at the lower end of the flattening smooth tube, a sliding frame extending from the sliding base is slidably provided inside the sliding base, a sliding spring is sleeved on the sliding frame, a sliding support rod is provided at the lower end of the sliding frame, a sliding sleeve is provided at the lower end of the sliding support rod, a connecting sliding rod extending from the sliding sleeve is slidably provided inside the sliding sleeve, a flattening spring connected to the connecting sliding rod is provided inside the sliding sleeve, and an flat plate is provided on the connecting sliding rod.

[0010] As an improvement, the positioning mechanism includes a positioning slide column arranged on the flattening support plate, the positioning slide column is a regular polygonal structure, a positioning sleeve connected to the flattening sleeve is slidably sleeved on the positioning slide column, a positioning spring connected to the positioning sleeve is sleeved on the positioning slide column, a positioning cross plate is provided on the positioning sleeve, a positioning support rod is slidably provided on the positioning cross plate, a positioning block is provided at the lower end of the positioning support rod, and a reset spring sleeved on the positioning support rod and connected to the positioning cross plate is provided on the positioning block.

[0011] As an improvement, the placing plate is provided with no less than three groups of placing grooves equidistantly arranged along the circumferential direction, a placing slider connected to a placing baffle is slidably arranged in the placing groove, a placing rack is arranged at the lower end of the placing slider, a placing gear meshing with the placing rack is rotatably arranged at the lower end of the placing plate, and a placing gear ring meshing with the placing gear is rotatably arranged on the placing sleeve.

[0012] As an improvement, a driving pulley is provided at the lower end of the rotating column, a matching pulley is provided at the lower end of the transmission sliding column, and a transmission belt is provided between the driving pulley and the matching pulley.

[0013] Compared with the prior art, the present invention has the following beneficial effects: the flattening mechanism will synchronously unfold the multiple groups of flattening smooth tubes after the positioning mechanism fixes the flannel, and the flattening smooth tubes drive the sliding mechanism connected thereto to move synchronously to realize the flattening and positioning of the flannel, and after the flattening mechanism is unfolded, it provides a working place for the welding mechanism while blocking the contact between the workers and the welding structure, avoiding the high temperature of the welding device from causing harm to the workers, and improving the efficiency of flannel welding on the back panel of the automobile seat, specifically:

[0014] 1. When the unfolding sleeve slides up and down along the unfolding smooth tube, the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod cooperate with each other to drive the unfolding and closing of multiple unfolding smooth tubes. The unfolding smooth tube drives the sliding mechanism to move synchronously while moving. The positioning mechanism fixes the flannel and the seat back plate at a single point before that. After that, the synchronously unfolded sliding mechanism flattens the flannel and positions it at the same time. Only a single unfolding sleeve needs to be moved to flatten and position the flannel. The operation is simple and the efficiency is high. At the same time, the tightness of the flannel at different points is uniform, which prolongs the service life of the seat back plate. In addition, the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod surround the welding mechanism to improve the protection of workers.

[0015] 2. The top support mechanism drives the top support sleeve to move downward through the gravity of the seat. When the top support sleeve moves downward, the top support slide column and the spiral slide groove slide together to drive the rotating column to rotate. The rotating column drives the transmission slide column to rotate through the cooperation of the driving pulley, the matching pulley and the transmission belt. The transmission slide column of the regular polygon structure drives the driving sleeve to rotate, and drives the flattening support plate to slide along the side support plate under the cooperation of the driving spiral groove and the matching slider, thereby driving the flattening mechanism to move up and down, which is convenient for placing the seat and facilitating the cooperation between the flattening mechanism and the seat back plate, thereby improving the convenience of use and the efficiency of the seat back plate welding.

[0016] 3. The sliding mechanism drives the sliding support rod to slide up and down through the cooperation of the sliding spring and the sliding frame. The sliding support rod drives the unfolding plate to slide up and down through the cooperation of the connecting slide rod and the flattening spring. As a result, the unfolding plate unfolds while the sliding mechanism moves with the unfolding smooth tube, realizing the flattening and positioning of the velvet cloth and improving the welding efficiency of the seat back velvet cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a structural schematic diagram of a clamping device for welding velvet cloth on a car seat back panel.

[0018] Figure 2 It is an exploded view of a clamping device for welding velvet cloth on a car seat back panel according to the present invention.

[0019] Figure 3 The present invention is a cross-sectional view of a clamping device for welding velvet cloth on a car seat back panel.

[0020] Figure 4 The invention discloses an exploded view of a flattening mechanism of a clamping device for welding velvet cloth on a car seat back panel.

[0021] Figure 5 The present invention is a cross-sectional view of a flattening mechanism of a clamping device for welding velvet cloth on a car seat back panel.

[0022] Figure 6 The invention discloses an exploded view of a sliding mechanism of a clamping device for welding velvet cloth on a car seat back panel.

[0023] Figure 7 The present invention is a cross-sectional view of a sliding mechanism of a clamping device for welding velvet cloth on a car seat back panel.

[0024] Figure 8 The present invention is a structural schematic diagram of a positioning mechanism of a clamping device for welding velvet cloth on a car seat back panel.

[0025] Fig. 9 The present invention is a cross-sectional view of a positioning mechanism of a clamping device for welding velvet cloth on a car seat back panel.

[0026] Fig.10 The invention is a cross-sectional view of the cooperation between a placing mechanism and a supporting mechanism of a clamping device for welding velvet on a car seat back panel of the present invention.

[0027] Fig.11 The invention discloses an exploded view of the cooperation between a placing mechanism and a supporting mechanism of a clamping device for welding velvet on a car seat back panel.

[0028] As shown in the figure: 1. Support base; 11. Side support plate; 111. Dovetail slide; 112. Protective grille; 2. Placement mechanism; 21. Placement sleeve; 22. Placement plate; 221. Placement slide; 222. Placement slider; 223. Placement rack; 23. Placement baffle; 24. Placement gear ring; 25. Placement gear; 3. Flattening mechanism; 31. Flattening support plate; 311. Flattening tube; 312. Flattening sleeve; 3121. Driving slide; 313. Dovetail slider; 32. Limiting block; 33. First connecting rod; 34. Second connecting rod; 35. Third connecting rod; 36. Fourth connecting rod; 37. Sliding mechanism; 371. Sliding base; 372. Sliding frame; 373. Sliding spring; 374. Sliding support rod; 375. Connecting slide rod; 376. Flattening plate; 377. Flattening spring; 378, sliding sleeve; 38, positioning mechanism; 381, positioning sleeve; 382, ​​positioning slide; 383, positioning spring; 384, positioning cross plate; 385, positioning support rod; 386, positioning block; 387, return spring; 4, supporting mechanism; 41, supporting sleeve; 411, supporting slide; 42, supporting block; 43, rotating column; 431, spiral slide; 432, supporting spring; 433, driving pulley; 44, fixing block; 441, matching pulley; 442, driving slide; 443, driving belt; 45, driving sleeve; 451, driving spiral groove; 46, matching seat; 461, telescopic joint; 462, matching spring; 463, matching slider; 5, welding mechanism; 51, electric slide rail; 52, electric push rod; 53, welding device body. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0030] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 With attached Fig.11As shown, a clamping device for welding car seat back flannel includes a supporting base 1, a side support plate 11 is vertically provided on the supporting base 1, a protective grille 112 is provided on the side support plate 11, a placement mechanism 2 for placing the seat back and flannel is provided on the supporting base 1, a welding mechanism 5 for welding the seat back and flannel in cooperation with the placement mechanism 2 is provided on the supporting base 1, the welding mechanism 5 includes an electric slide rail 51 arranged on the protective grille 112, an electric push rod 52 is slidably provided on the electric slide rail 51, a welding device body 53 is provided at the telescopic end of the electric push rod 52, the welding device body 53 is an ultrasonic welding device, and the ultrasonic welding device generally includes an ultrasonic generator, a converter, a welding head, and a control and cooling system, which is the current prior art and will not be described in detail here, the electric slide rail 51 includes a transverse electric slide rail 51 and a longitudinal electric slide rail 51 for transverse and longitudinal movement, so that the welding device body 53 can be conveniently moved transversely and longitudinally, which is convenient for welding operations at multiple points;

[0031] The side support plate 11 is slidably provided with a flattening mechanism 3 for flattening the flannel, and the flattening mechanism 3 includes a flattening support plate 31 slidably provided on the side support plate 11, a dovetail slider 313 is provided on the flattening support plate 31, and a dovetail groove 111 slidably matched with the dovetail slider 313 is provided on the side support plate 11, a flattening smooth tube 311 is provided on the flattening support plate 31, and a plurality of groups of flattening smooth tubes 311 are provided, and a sliding mechanism 37 for flattening the flannel is provided at the lower end of the flattening smooth tube 311, and a positioning mechanism 38 for positioning the flannel is provided on the flattening support plate 31, and a supporting mechanism 4 for driving the flattening support plate 31 to slide is slidably provided on the placing mechanism 2.

[0032] The working principle of the present invention is as follows: the seat is placed on the placement mechanism 2, with the seat back facing the welding mechanism 5. The seat presses the support mechanism 4 through gravity, and the support mechanism 4 drives the flattening support plate 31 to slide downward along the side support plate 11, and the velvet cloth is placed on the upper end of the seat back and flattened. Then, the positioning mechanism 38 is operated to move downward to fix the velvet cloth and the seat back. During this process, the sliding mechanism 37 is synchronously unfolded to flatten and fix the velvet cloth, thereby achieving clamping and fixing of multiple points of the seat back and the velvet cloth. Then, the welding device body 53 is driven to move in three dimensions through the cooperation of the electric slide rail 51 and the electric push rod 52, and the velvet cloth and the seat back are welded to complete the seat back velvet welding operation.

[0033] Combined with Figure 2 , Attachment Figure 3 , Attachment Figure 4 With attached Figure 5As shown, multiple groups of the expansion smooth tubes 311 are all slidably sleeved with expansion smooth sleeves 312, one group of the expansion smooth sleeves 312 is provided with a driving slide 3121 slidably connected to the expansion smooth tubes 311, and a power mechanism is provided in the expansion smooth sleeves 312 for driving the expansion smooth sleeves 312 to slide along the expansion smooth tubes 311 through the driving slide 3121. The power mechanism can be an electric push rod 52 or a pneumatic push rod, one side of the expansion smooth tube 311 is hinged with a first connecting rod 33 hinged with the adjacent expansion smooth sleeve 312, and the other side of the expansion smooth tube 311 is hinged with a second connecting rod 34 hinged with the adjacent expansion smooth sleeve 312, the first connecting rod 33 and the second connecting rod 34 on the same side are hinged to each other, and the upper ends of the multiple groups of the expansion smooth tubes 311 are all provided with limit blocks 32, and the two adjacent groups of limit blocks 32 are hinged with a third connecting rod 35 and a fourth connecting rod 36 hinged to each other.

[0034] The working principle of the expansion smooth tube 311: when the power mechanism drives the driving slide plate 3121 to move downward, the driving slide plate 3121 drives the expansion smooth sleeve 312 connected thereto to slide downward along the expansion smooth tube 311 synchronously. During this process, the expansion smooth sleeve 312 drives the first connecting rod 33 and the second connecting rod 34 on both sides to rotate, and the expansion smooth tubes 311 hinged to the first connecting rod 33 and the second connecting rod 34 respectively move away from each other synchronously, the third connecting rod 35 and the fourth connecting rod 36 rotate synchronously, and multiple groups of expansion smooth tubes 311 are synchronously expanded. On the contrary, when the power mechanism drives the driving slide plate 3121 to move upward, the driving slide plate 3121 drives the expansion smooth sleeve 312 connected thereto to slide upward along the expansion smooth tube 311 synchronously. During this process, the expansion smooth sleeve 312 drives the first connecting rod 33 and the second connecting rod 34 on both sides to rotate, and the expansion smooth tubes 311 hinged to the first connecting rod 33 and the second connecting rod 34 respectively move closer to each other synchronously, the third connecting rod 35 and the fourth connecting rod 36 rotate synchronously, and multiple groups of expansion smooth tubes 311 are synchronously closed.

[0035] Combined with Figure 2 , Attachment Figure 3 , Attachment Figure 4 With attached Figure 5 As shown, the placement mechanism 2 includes a placement sleeve 21 arranged on the supporting base 1, a placement plate 22 is arranged at the upper end of the placement sleeve 21, a placement baffle 23 is slidably arranged on the placement plate 22, and a plurality of placement baffles 23 are equidistantly arranged along the circumferential direction of the placement plate 22;

[0036] The placing plate 22 is provided with at least three groups of placing grooves 221 equidistantly arranged along the circumferential direction, a placing slider 222 connected to the placing baffle 23 is slidably arranged in the placing groove 221, a placing rack 223 is arranged at the lower end of the placing slider 222, a placing gear 25 meshing with the placing rack 223 is rotatably arranged at the lower end of the placing plate 22, the placing gear 25 can be driven by a motor, and a placing gear ring 24 meshing with the placing gear 25 is rotatably arranged on the placing sleeve 21.

[0037] The working principle of the placement mechanism 2: when the seat is placed on the placement flat plate 22, the placement gear 25 is driven by the motor to rotate, and the placement gear 25 drives the placement gear ring 24 meshing with it to rotate, and the placement gear ring 24 drives multiple groups of the placement gears 25 to rotate synchronously. Due to the sliding limiting effect of the placement slide groove 221 on the placement slider 222, the placement gear 25 drives the placement rack 223 meshing with it to move, and the placement rack 223 drives the placement baffle 23 to approach each other synchronously through the placement slider 222, thereby achieving the clamping and fixation of the seat back panel.

[0038] Combined with Figure 3 , Attachment Fig.10 With attached Fig.11 As shown, the supporting mechanism 4 includes a supporting sleeve 41 slidably arranged on the placing sleeve 21, a supporting sliding column 411 is arranged in the supporting sleeve 41, a supporting block 42 is arranged on the supporting base 1, a rotating column 43 is rotatably arranged on the supporting block 42, a spiral groove 431 slidably connected to the supporting sliding column 411 is spirally arranged on the rotating column 43, a supporting spring 432 connected to the supporting sleeve 41 is arranged on the rotating column 43, a driving sleeve 45 which moves with the supporting sleeve 41 is arranged on the supporting base 1, and the driving sleeve 45 is rotatably connected to the flattening support plate 31.

[0039] The supporting base 1 is provided with a fixed block 44, on which a transmission slide 442 is rotatably provided, the transmission slide 442 is a regular polygonal structure, a driving sleeve 45 is slidably sleeved on the transmission slide 442, and a driving spiral groove 451 is spirally surrounded on the outer side of the driving sleeve 45, a matching seat 46 is provided on the side support plate 11, and a telescopic joint 461 is provided on the matching seat 46, and a matching slider 463 slidably connected to the driving spiral groove 451 is provided at the telescopic end of the telescopic joint 461, and a matching spring 462 connected to the matching slider 463 is sleeved on the telescopic joint 461, a driving pulley 433 is provided at the lower end of the rotating column 43, a matching pulley 441 is provided at the lower end of the transmission slide 442, and a transmission belt 443 is provided between the driving pulley 433 and the matching pulley 441.

[0040] The working principle of the top support mechanism 4 is as follows: when the seat back plate contacts the top support sleeve 41, the seat back plate presses the top support sleeve 41 under the action of gravity, and the top support sleeve 41 slides downward along the placement sleeve 21, and the top support sleeve 41 squeezes the top support spring 432, and the top support spring 432 is forced to shrink. In the process of the top support sleeve 41 sliding downward, the top support slide column 411 slides along the spiral slide groove 431, and the rotating column 43 rotates. The rotating column 43 drives the driving pulley 433 connected thereto to rotate synchronously, and the driving pulley 433 drives the matching pulley 441 to rotate through the transmission belt 443, and the matching pulley 441 drives the transmission slide column 442 to rotate, and the transmission slide column 442 of the regular polygonal structure drives the driving sleeve 45 slidably connected thereto to rotate, and because the matching slider 463 slides with the driving spiral groove 451, the driving sleeve 45 slides axially downward along the transmission slide column 442 while the driving sleeve 45 rotates;

[0041] On the contrary, when the seat back panel is separated from the top support sleeve 41, the top support spring 432 rebounds and drives the top support sleeve 41 to reset. In the process of the top support sleeve 41 sliding upward, the top support slide column 411 slides along the spiral slide groove 431, and the rotating column 43 rotates in the opposite direction. The rotating column 43 drives the driving pulley 433 connected thereto to rotate in the opposite direction synchronously. The driving pulley 433 drives the matching pulley 441 to rotate in the opposite direction through the transmission belt 443. The matching pulley 441 drives the transmission slide column 442 to rotate in the opposite direction. The transmission slide column 442 with a regular polygonal structure drives the driving sleeve 45 slidingly connected thereto to rotate in the opposite direction. The driving sleeve 45 slides upward axially along the transmission slide column 442.

[0042] Combined with Figure 2 , Attachment Figure 3 , Attachment Figure 6 With attached Figure 7 As shown, the sliding mechanism 37 includes a sliding base 371 arranged at the lower end of the flattening smooth tube 311, a sliding frame 372 extending from the sliding base 371 is slidably provided in the sliding base 371, a sliding spring 373 is sleeved on the sliding frame 372, a sliding support rod 374 is provided at the lower end of the sliding frame 372, a sliding sleeve 378 is provided at the lower end of the sliding support rod 374, the sliding sleeve 378 is provided in multiple groups, a connecting slide rod 375 extending from the sliding sleeve 378 is slidably provided in the sliding sleeve 378, a flattening spring 377 connected to the connecting slide rod 375 is provided in the sliding sleeve 378, and an flattening plate 376 is provided on the connecting slide rod 375.

[0043] Working principle of the sliding mechanism 37: when the flattening sleeves are unfolded to each other, the flattening sleeves drive the sliding base 371 connected thereto to move synchronously, the sliding base 371 drives the sliding support rod 374 to move synchronously through the sliding frame 372, the sliding support rod 374 drives the connecting slide rod 375 and the unfolding plate 376 to move synchronously through the sliding sleeve 378 and the sliding cooperation with the connecting slide rod 375, and multiple groups of unfolding plates 376 move synchronously, thereby realizing the flattening of the flannel. The setting of the East China spring and the flattening spring 377 can prevent the unfolding plate 376 from exerting too much pressure on the flannel, causing damage to the flannel, and at the same time can be suitable for the flattening operation of flannel with an uneven back plate.

[0044] Combined with Figure 2 , Attachment Figure 3 , Attachment Figure 8 With attached Fig. 9 As shown, the positioning mechanism 38 includes a positioning slide 382 arranged on the flattening support plate 31, the positioning slide 382 is a regular polygonal structure, the positioning slide 382 is slidably sleeved with a positioning sleeve 381 connected to the flattening sleeve 312, the positioning slide 382 is sleeved with a positioning spring 383 connected to the positioning sleeve 381, the positioning sleeve 381 is provided with a positioning cross plate 384, the positioning cross plate 384 is slidably provided with a positioning support rod 385, the lower end of the positioning support rod 385 is provided with a positioning block 386, the positioning block 386 is provided with a return spring 387 sleeved on the positioning support rod 385 and connected to the positioning cross plate 384.

[0045] The working principle of the positioning mechanism 38: when the unfolding smooth sleeve 312 moves downward, the unfolding smooth sleeve 312 drives the connected positioning sleeve 381 to slide downward synchronously along the positioning slide column 382, ​​and the positioning sleeve 381 squeezes the positioning spring 383, and the positioning spring 383 contracts under the force. During this process, the positioning cross plate 384 moves downward synchronously. Due to the cooperation of the positioning support rod 385, the positioning block 386 and the return spring 387, the positioning cross plate 384 moves downward synchronously during the downward movement, and the positioning block 386 moves downward synchronously until it contacts the flannel. As the positioning cross plate 384 continues to move, the positioning cross plate 384 squeezes the return spring 387, and the return spring 387 generates elastic force through deformation to act on the positioning block 386, so that the flannel and the seat back plate are fixed through the positioning block 386.

[0046] In the specific implementation of the present invention, the seat is placed on the placement flat plate 22, with the seat back facing the welding mechanism 5. Under the action of gravity, the seat drives the top support sleeve 41 to slide downward along the placement sleeve 21, and the driving sleeve 45 rotates and drives the flattening support plate 31 to move downward. The placement gear 25 is driven by the motor to rotate, and the placement rack 223 drives the placement baffle 23 to move synchronously close to each other through the placement slider 222, thereby achieving the clamping and fixing of the seat back. At this time, the driving slide 3121 drives the flattening sleeve 312 and the positioning sleeve 38 1 slides downward synchronously, the positioning sleeve 381 drives the positioning block 386 to first contact the flannel and realize single-point fixation of the flannel and the seat back plate, then the multiple groups of the unfolding smooth tubes 311 unfold and drive the unfolding plate 376 to contact the flannel to flatten and fix the flannel, and realize clamping and fixing of the seat back plate and the flannel at multiple points, then, the electric slide rail 51 and the electric push rod 52 cooperate to drive the welding device body 53 to move in three-dimensional directions, weld the flannel and the seat back plate, and complete the seat back plate flannel welding operation.

[0047] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A clamping device for welding car seat back plate velvet, comprising a supporting base (1), a placing mechanism (2) for placing the seat back plate and the velvet on the supporting base (1), a welding mechanism (5) for cooperating with the placing mechanism (2) to weld the seat back plate and the velvet on the supporting base (1), characterized in that: The supporting base (1) is vertically provided with a side support plate (11), and a flattening mechanism (3) for flattening the flannel is slidably provided on the side support plate (11), and the flattening mechanism (3) comprises a flattening support plate (31) slidably provided on the side support plate (11), and a flattening smooth tube (311) is provided on the flattening support plate (31), and a plurality of groups of flattening smooth tubes (311) are provided, and a flattening smooth sleeve (312) is slidably sleeved on each of the plurality of groups of flattening smooth tubes (311), and a driving slide plate (3121) slidably connected to the flattening smooth tube (311) is provided on one group of the flattening smooth sleeves (312), and a driving slide plate (3121) is provided in the flattening smooth sleeve (312) for driving the flattening smooth sleeve (312) along the flattening smooth tube (311). A power mechanism for sliding the spreading smooth tube (311), wherein a first connecting rod (33) hinged to an adjacent spreading smooth sleeve (312) is hinged on one side of the spreading smooth tube (311), a second connecting rod (34) hinged to another adjacent spreading smooth sleeve (312) is hinged on the other side of the spreading smooth tube (311), the first connecting rod (33) and the second connecting rod (34) on the same side are hinged to each other, a third connecting rod (35) and a fourth connecting rod (36) hinged to each other are hinged on two adjacent groups of the spreading smooth tubes (311), a sliding mechanism (37) for flattening the flannel is provided at the lower end of the spreading smooth tube (311), and a positioning mechanism (38) for positioning the flannel is provided on the flattening support plate (31); The placement mechanism (2) is slidably provided with a supporting mechanism (4) for driving the flattening support plate (31) to slide.

2. The clamping device for welding car seat backboard velvet according to claim 1 is characterized in that: The placement mechanism (2) comprises a placement sleeve (21) arranged on a supporting base (1); a placement plate (22) is provided at the upper end of the placement sleeve (21); a placement baffle (23) is slidably provided on the placement plate (22); and a plurality of groups of the placement baffles (23) are equidistantly arranged along the circumferential direction of the placement plate (22).

3. The clamping device for welding car seat backboard velvet according to claim 2 is characterized in that: The supporting mechanism (4) comprises a supporting sleeve (41) slidably arranged on the placement sleeve (21), a supporting sliding column (411) being arranged in the supporting sleeve (41), a supporting block (42) being arranged on the supporting block (42) for rotation, a rotating column (43) being arranged on the rotating column (43) for rotation, a spiral groove (431) being arranged on the rotating column (43) for rotation connection with the supporting sliding column (411), a supporting spring (432) being arranged on the rotating column (43) for rotation connection with the supporting sleeve (41), and a driving sleeve (45) being arranged on the supporting base (1) for movement with the supporting sleeve (41), the driving sleeve (45) being rotationally connected with the flattening support plate (31).

4. The clamping device for welding car seat backboard velvet according to claim 3 is characterized in that: The supporting base (1) is provided with a fixed block (44), the fixed block (44) is rotatably provided with a transmission slide column (442), the transmission slide column (442) is a regular polygonal structure, a driving sleeve (45) is slidably sleeved on the transmission slide column (442), a driving spiral groove (451) is spirally surrounded on the outer side of the driving sleeve (45), and a matching sliding block (463) slidably connected to the driving spiral groove (451) is provided on the side support plate (11).

5. The clamping device for welding car seat backboard velvet according to claim 1 is characterized in that: The sliding mechanism (37) comprises a sliding base (371) arranged at the lower end of the flattening smooth tube (311); a sliding frame (372) extending from the sliding base (371) is slidably provided in the sliding base (371); a sliding spring (373) is sleeved on the sliding frame (372); a sliding support rod (374) is provided at the lower end of the sliding frame (372); a sliding sleeve (378) is provided at the lower end of the sliding support rod (374); a connecting sliding rod (375) extending from the sliding sleeve (378) is slidably provided in the sliding sleeve (378); a flattening spring (377) connected to the connecting sliding rod (375) is provided in the sliding sleeve (378); and a flattening plate (376) is provided on the connecting sliding rod (375).

6. The clamping device for welding car seat backboard velvet according to claim 1, characterized in that: The positioning mechanism (38) comprises a positioning slide post (382) arranged on the flattening support plate (31), the positioning slide post (382) being a regular polygonal structure, a positioning sleeve (381) connected to the flattening sleeve (312) being slidably sleeved on the positioning slide post (382), a positioning spring (383) connected to the positioning sleeve (381) being sleeved on the positioning slide post (382), a positioning transverse plate (384) being provided on the positioning sleeve (381), a positioning support rod (385) being slidably provided on the positioning transverse plate (384), a positioning block (386) being provided at the lower end of the positioning support rod (385), and a return spring (387) being sleeved on the positioning support rod (385) and connected to the positioning transverse plate (384) being provided on the positioning block (386).

7. The clamping device for welding car seat backboard velvet according to claim 2, characterized in that: The placement plate (22) is provided with at least three groups of placement grooves (221) equidistantly arranged along the circumferential direction, a placement slide block (222) connected to the placement baffle (23) is slidably arranged in the placement slide block (221), a placement rack (223) is arranged at the lower end of the placement slide block (222), a placement gear (25) meshing with the placement rack (223) is rotatably arranged at the lower end of the placement plate (22), and a placement gear ring (24) meshing with the placement gear (25) is rotatably arranged on the placement sleeve (21).

8. The clamping device for welding car seat backboard velvet according to claim 4, characterized in that: A driving pulley (433) is provided at the lower end of the rotating column (43), a matching pulley (441) is provided at the lower end of the transmission sliding column (442), and a transmission belt (443) is provided between the driving pulley (433) and the matching pulley (441).

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