A traction beam flexible assembly tooling and flexible displacement welding process equipment and use method thereof

Abstract

The present invention discloses a process equipment for flexible assembly of traction beams and flexible displacement welding and a method for using the process equipment, which specifically relates to the technical field of flexible assembly of traction beams, including a box, a bottom plate, an air supply device, a docking device and a water supply device, wherein a partition is fixedly connected to the interior of the box, a cooler and a heater are arranged inside the box, and the docking device comprises a first bracket, and the left side of the first bracket is fixedly connected to two springs. The present invention heats the thermoplastic material by a water supply device, and according to the characteristic that the thermoplastic material can be plasticized by heating, the thermoplastic material can be fitted with the shape of the workpiece, and the air supply device is cooperated to extrude the thermoplastic material to achieve perfect fitting with the workpiece, and finally the thermoplastic material is shaped by cold water delivery, so that the thermoplastic material can realize workpieces of different models and shapes, and can achieve self-adaptation to various types of workpieces, meet different fixing scenes, and make the device have high application value.

Description

Technical Field

[0001] The present invention relates to the technical field of traction beam flexible assembly processing, and more specifically, to a traction beam flexible assembly tooling and flexible displacement welding process equipment and a use method thereof. Background Art

[0002] The traction beam refers to the main load-bearing member connecting the middle beam of a train. It is mainly used on the underframe components of locomotives and rail engineering vehicles to transfer the longitudinal tensile or compressive loads of the locomotive or rail engineering vehicle. In the process of processing the traction beam, it is often necessary to weld the traction beam. Before welding, it is necessary to use a welding group tooling and a clamping tooling to clamp and butt the two parts first. At present, the welding group tooling and the clamping tooling in the prior art are not convenient for adjusting according to different types of traction beams during the processing of different types of traction beams, and are difficult to be applied to a variety of different types of parts and different fixing scenes. In addition, it is difficult to control the strength of the butt connection during the butt connection process, so that during welding, the butt connection force is large, which can easily cause deformation of the product and poor welding quality. Therefore, it is of great significance to study a new traction beam flexible group tooling and flexible displacement welding process equipment and its use method to solve the above problems. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a traction beam flexible assembly tooling and flexible displacement welding process equipment and a use method thereof. The technical problem to be solved by the present invention is that the welding assembly tooling and clamping tooling in the prior art are not convenient for adjusting according to different types of traction beams during processing of different types of traction beams, and are difficult to be applied to a variety of different types of parts and different fixing scenes. Moreover, in the process of docking, it is difficult to control the docking force, so that during welding, the docking force is large, which can easily cause deformation of the product and result in poor welding quality.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a process equipment for flexible assembly of traction beams and flexible displacement welding, comprising a box body, a bottom plate, an air supply device, a docking device and a water supply device, wherein a partition is fixedly connected to the interior of the box body, a cooler and a heater are arranged inside the box body, and the docking device comprises a first bracket, a left side surface of the first bracket is fixedly connected to two springs, and the left ends of the two springs are fixedly connected to the right side surface of a connecting plate, and the left side surface of the connecting plate is rotatably connected to a screw rod through a bearing, and a nut is threadedly connected to the outer surface of the screw rod, and the nut is clamped in a second bracket, and two sliders are fixedly connected to the bottom end of the second bracket, and the two sliders are fixedly connected to the same support plate, and the support plate is fixedly connected to a second electric push rod.

[0005] The water delivery device includes a water pump and two valves. The water pump is fixedly connected to the upper surface of the box body. The water inlet of the water pump is connected to the diversion pipe. The two ends of the diversion pipe are connected to the box body. The water outlet of the water pump is connected to the guide pipe. The guide pipe passes through the bottom plate and is connected to the two return pipes. The two return pipes are connected to the box body. The two valves are respectively arranged on both sides of the two return pipes and on both sides of the diversion pipe.

[0006] The air supply device includes a fan, an air outlet of the fan is connected to a connecting pipe, four ends of the connecting pipe are connected to four air bags, one side of the four air bags is fixedly connected with a clamping mechanism, two clamping mechanisms on the left and two clamping mechanisms on the right are fixedly connected to the second bracket and the first bracket respectively, the four parts of the guide pipe are serpentine and fixedly connected to the surfaces of the four air bags respectively, and the guide pipe is fixedly connected to four thermoplastic materials.

[0007] As a further solution of the present invention: the lower surface of the fan is fixedly connected to the upper surface of the base, one side of the base is fixedly connected to the outer surface of the box, the second electric push rod is fixedly installed inside the fixed base, and the fixed base is fixedly connected to the upper surface of the base plate.

[0008] As a further solution of the present invention: the guide pipe is configured as a hose, and the connecting pipe is configured as a hose.

[0009] As a further solution of the present invention: the clamping mechanism includes a support seat, two support seats on the left and two support seats on the right are respectively fixedly connected to the outer surfaces of the two second brackets and the two first brackets, a first electric push rod is clamped inside the support seat, one end of the first electric push rod is fixedly connected to a clamping plate, and the clamping plate is fixedly connected to the outer surface of the airbag.

[0010] As a further solution of the present invention: two slide grooves are provided on the upper surface of the bottom plate, the two sliding blocks are slidably connected in the two slide grooves respectively, and one end of the screw rod is fixedly connected to a turning handle.

[0011] As a further solution of the present invention: two guide sleeves are fixedly connected inside the second bracket, and sliding rods are slidably connected inside the two guide sleeves, and one end of the two sliding rods is fixedly connected to the left side of the same connecting plate.

[0012] As a further solution of the present invention: the upper surface of the first bracket and the upper surface of the second bracket are fixedly connected to two support rods, the outer surfaces of the support rods are slidably connected to two movable plates, and the upper surfaces of the movable plates are fixedly connected to the lower surface of the clamping plate.

[0013] A method for using a traction beam flexible assembly tool and a flexible displacement welding process equipment comprises the following steps:

[0014] S1. First, turn the handle to make the handle drive the screw to rotate, so that the screw controls the connection plate to move under the threaded connection of the nut, so that the connection plate extrusion spring produces compression deformation. At this time, the elastic adjustment operation is completed, and then the two workpieces to be welded are placed in the two corresponding thermoplastic material positions respectively, and the second electric push rod is controlled to operate, so that the second electric push rod drives the support plate to move, so that the second bracket moves, and then the two workpieces are successfully docked.

[0015] S2, then controlling the first electric push rod to extend, so that the first electric push rod pushes the clamping plate to move, so that the clamping plate pushes the thermoplastic material to move through the airbag, so that the thermoplastic material clamps and positions the workpiece, and then controlling the heater to operate, so that the heater heats the liquid inside the box, and then rotating the valve above the corresponding heating chamber of the box, so that one side of the shunt pipe is in an open state, and then controlling the water pump to operate, so that the water pump extracts heated hot water through one end of the shunt pipe, so that the hot water enters the guide pipe through the shunt pipe and the water pump, and the hot water flows in the guide pipe in a serpentine shape, so that the hot water heats the thermoplastic material, so that the thermoplastic material undergoes plastic deformation through heating, so that the thermoplastic material adapts to the shape of the workpiece through deformation, and at the same time, the hot water enters the heating chamber of the box through the return pipe.

[0016] S3. Finally, the fan is controlled to operate so that the fan delivers air, and the air is transported through the connecting pipe, so that the air enters the airbag, so that the airbag expands, and the airbag controls the thermoplastic material to fit closely with the surface of the workpiece, and then the valve above the heating chamber is turned so that the valve closes the opening on one side of the shunt pipe and the return pipe. At this time, another valve is turned to open the other opening of the shunt pipe and the return pipe, and the water pump is controlled to operate again so that the cold water inside the box enters the guide pipe through the water pump, so that the cold water cools the thermoplastic material when passing through it, so that the thermoplastic material is shaped, and then the thermoplastic material completes the secure positioning of the workpiece.

[0017] The beneficial effects of the present invention are:

[0018] 1. The present invention heats the thermoplastic material by means of a water delivery device. Based on the characteristic that the thermoplastic material can be plasticized by heating, the thermoplastic material can be fitted with the shape of the workpiece, and the air delivery device is used to extrude the thermoplastic material to achieve a perfect fit with the workpiece. Finally, the thermoplastic material is shaped by cold water delivery, so that the thermoplastic material can be formed into workpieces of different models and shapes, and can be adapted to various types of workpieces to meet different fixing scenarios, so that the device has a high application value.

[0019] 2. The present invention sets a docking device, and controls the movement of the connecting plate through the screw rod, so that the connecting plate can control the spring to produce compression deformation. When the second bracket and the first bracket are controlled to approach each other by the second electric push rod, the two workpieces can be docked smoothly. Since the spring produces compression deformation, the docking force between the two workpieces can be increased. At the same time, the screw rod is controlled to move in the reverse direction, so that the elastic ductility of the spring is improved. When the two workpieces are docked, the spring can produce elastic deformation, thereby reducing the problem of deformation of the workpieces and ensuring the welding quality of the workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the box body of the present invention;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the water delivery device of the present invention;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the air supply device of the present invention;

[0024] Figure 5 It is a three-dimensional top view cross-sectional structural schematic diagram of the present invention;

[0025] Figure 6 It is a schematic diagram of a three-dimensional cross-sectional structure of a box body of the present invention when viewed from above;

[0026] Figure 7 It is a schematic diagram of the structure of the separated airbag and thermoplastic material of the present invention;

[0027] In the figure: 1 bottom plate, 2 clamping mechanism, 21 support seat, 22 first electric push rod, 23 clamping plate, 3 docking device, 31 first bracket, 32 spring, 33 connecting plate, 34 screw, 35 support plate, 36 slider, 37 second bracket, 38 handle, 39 nut, 310 second electric push rod, 311 fixed seat, 312 guide sleeve, 313 slide rod, 4 box body, 5 air supply device, 51 machine base, 52 fan, 53 connecting pipe, 54 air bag, 6 water delivery device, 61 water pump, 62 shunt pipe, 63 guide pipe, 64 return pipe, 65 valve, 7 partition, 8 heater, 9 cooler, 10 movable plate, 11 support rod, 12 thermoplastic material, 13 slide groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figure 1-7 As shown, the present invention provides a process equipment for flexible assembly of traction beams and flexible displacement welding, including a box body 4, a bottom plate 1, an air supply device 5, a docking device 3 and a water supply device 6. A partition 7 is fixedly connected to the inside of the box body 4. By setting the partition 7, it is convenient to separate cold water and hot water. A cooler 9 and a heater 8 are arranged inside the box body 4. By setting the cooler 9, it is convenient to further cool the reflux. By setting the heater 8, it is convenient to heat the liquid. The docking device 3 includes a first bracket 31. The left side of the first bracket 31 is fixedly connected to two springs 32. By setting the spring 32, and the spring 32 has elastic ductility, the deformation caused by the docking of the workpieces can be reduced by deformation. At the same time, the spring 3 After the compression deformation is generated, a greater force is required to make it elastically deform, so that the workpiece docking adjustment can be achieved. The left ends of the two springs 32 are fixedly connected to the right side of the connecting plate 33. The left side of the connecting plate 33 is rotatably connected to the screw 34 through a bearing. By setting the screw 34, the screw 34 can control the connecting plate 33 to smoothly adjust the elastic force of the spring 32. The outer surface of the screw 34 is threadedly connected with a nut 39, and the nut 39 is clamped in the second bracket 37. The bottom end of the second bracket 37 is fixedly connected with two sliders 36. The two sliders 36 are fixedly connected to the same support plate 35. The support plate 35 is fixedly connected to the second electric push rod 310. By setting the second electric push rod 310, it is convenient to control the support plate 35 to move.

[0030] The water delivery device 6 includes a water pump 61 and two valves 65. The valve 65 is provided, and the valve 65 can control the opening and closing of the shunt pipe 62 and the return pipe 64. The water pump 61 is fixedly connected to the upper surface of the box body 4. The water inlet of the water pump 61 is connected to the shunt pipe 62. The shunt pipe 62 is provided to facilitate water inlet. Both ends of the shunt pipe 62 are connected to the box body 4. The water outlet of the water pump 61 is connected to the guide pipe 63. The guide pipe 63 is provided, and the part where the guide pipe 63 and the thermoplastic material 12 are attached is serpentine, thereby prolonging the liquid residence time. The guide pipe 63 passes through the bottom plate 1 and is connected to the two return pipes 64. The return pipe 64 is provided to facilitate the return of liquid to the inside of the box body 4. The two return pipes 64 are connected to the box body 4. The two valves 65 are respectively provided on both sides of the two return pipes 64 and on both sides of the shunt pipe 62.

[0031] The air supply device 5 includes a fan 52, and the air outlet of the fan 52 is connected to the connecting pipe 53. By setting the connecting pipe 53, the fan 52 and the airbag 54 can be connected. The four ends of the connecting pipe 53 are connected to the four airbags 54. By setting the fan 52 and the airbag 54, the operation of the fan 52 can inflate the airbag 54, thereby ensuring that the thermoplastic material 12 fits the workpiece perfectly. One side of the four airbags 54 is fixedly connected with a clamping mechanism 2. The two clamping mechanisms 2 on the left and the two clamping mechanisms 2 on the right are respectively fixedly connected to the second bracket 37 and the first bracket 31. The four parts of the guide tube 63 are serpentine and fixedly connected to the surfaces of the four airbags 54. The guide tube 63 is fixedly connected to the four thermoplastic materials 12. By setting the thermoplastic material 12 and heating the thermoplastic material 12 to be plastic, it can adapt to different workpieces.

[0032] like Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown, the lower surface of the fan 52 is fixedly connected to the upper surface of the base 51. By setting the base 51, the fan 52 can be fixed. One side of the base 51 is fixedly connected to the outer surface of the box body 4. The guide pipe 63 is set as a hose, and the connecting pipe 53 is set as a hose. By setting the guide pipe 63 and the connecting pipe 53 as hoses, and the hose has elasticity and resiliency, the workpiece docking and clamping operations can be carried out smoothly. The clamping mechanism 2 includes a support seat 21. By setting the support seat 21, the first electric push rod 22 can be fixed. The two left support seats 21 and the two right support seats 21 are respectively fixedly connected to the outer surfaces of the two second brackets 37 and the two first brackets 31. The support seat 2 1 is clamped with a first electric push rod 22, one end of the first electric push rod 22 is fixedly connected to the clamping plate 23, by arranging the first electric push rod 22 and the clamping plate 23, the first electric push rod 22 pushes the clamping plate 23 to clamp and fix the workpiece through the thermoplastic material 12, the clamping plate 23 is fixedly connected to the outer surface of the airbag 54, the upper surface of the first bracket 31 and the upper surface of the second bracket 37 are fixedly connected to two support rods 11, the outer surfaces of the support rods 11 are slidably connected to two movable plates 10, by arranging the support rods 11 and the movable plate 10, the support rods 11 can ensure the stable sliding of the movable plate 10, and the upper surface of the movable plate 10 is fixedly connected to the lower surface of the clamping plate 23.

[0033] like Figure 5As shown, two slide grooves 13 are provided on the upper surface of the base plate 1, and two sliders 36 are slidably connected in the two slide grooves 13 respectively. By setting the slide grooves 13, the slider 36 can slide smoothly in the slide grooves 13, and one end of the screw rod 34 is fixedly connected with a turning handle 38. By setting the turning handle 38, it is convenient for the staff to control, the screw rod 34, the interior of the second bracket 37 is fixedly connected with two guide sleeves 312, and the interiors of the two guide sleeves 312 are both slidably connected with sliding rods 313. By setting the guide sleeves 312, the sliding rods 313 can slide smoothly, and one end of the two sliding rods 313 is fixedly connected to the left side of the same connecting plate 33, and the second electric push rod 310 is fixedly installed in the interior of the fixing seat 311. By setting the fixing seat 311, the second electric push rod 310 can be fixed, and the fixing seat 311 is fixedly connected to the upper surface of the base plate 1.

[0034] A method for using a traction beam flexible assembly tool and a flexible displacement welding process equipment comprises the following steps:

[0035] S1. First, turn the handle 38 so that the handle 38 drives the screw rod 34 to rotate, so that the screw rod 34 controls the connection plate 33 to move under the threaded connection of the nut 39, so that the connection plate 33 squeezes the spring 32 to produce compression deformation. At this time, the elastic adjustment operation is completed, and then the two workpieces to be welded are placed in the corresponding two positions of the thermoplastic material 12, and the second electric push rod 310 is controlled to operate, so that the second electric push rod 310 drives the support plate 35 to move, so that the second bracket 37 moves, and the two workpieces are successfully docked.

[0036] S2, then control the first electric push rod 22 to extend, so that the first electric push rod 22 pushes the clamping plate 23 to move, so that the clamping plate 23 pushes the thermoplastic material 12 to move through the airbag 54, so that the thermoplastic material 12 clamps and positions the workpiece, and then control the heater 8 to operate, so that the heater 8 heats the liquid inside the box 4, and then rotate the valve 65 corresponding to the upper side of the heating chamber of the box 4, so that one side of the shunt pipe 62 is in an open state, and then control the water pump 61 to operate, so that the water pump 61 extracts the heated hot water through one end of the shunt pipe 62, so that the hot water passes through the shunt pipe 62 and the water pump 61 and enters the guide pipe 63, then the hot water flows in the guide pipe 63 in a serpentine manner, so that the hot water heats the thermoplastic material 12, so that the thermoplastic material 12 is plastically deformed by heating, so that the thermoplastic material 12 adapts to the shape of the workpiece by deformation, and at the same time, the hot water enters the heating chamber of the box 4 through the return pipe 64.

[0037] S3. Finally, the fan 52 is controlled to operate so that the fan 52 delivers air, and the air is transported through the connecting pipe 53, so that the air enters the airbag 54, so that the airbag 54 expands, and the airbag 54 controls the thermoplastic material 12 to fit closely with the surface of the workpiece, and then the valve 65 above the heating chamber is rotated so that the valve 65 closes the opening on one side of the shunt pipe 62 and the return pipe 64. At this time, another valve 65 is rotated to open the other opening of the shunt pipe 62 and the return pipe 64, and the water pump 61 is controlled to operate again so that the cold water inside the box 4 enters the guide pipe 63 through the water pump 61, so that the cold water cools the thermoplastic material 12 when passing through it, so that the thermoplastic material 12 is shaped, and then the thermoplastic material 12 is firmly positioned on the workpiece.

[0038] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0039] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0040] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A process equipment for flexible assembly of traction beams and flexible displacement welding, comprising a box (4), a bottom plate (1), an air supply device (5), a docking device (3) and a water supply device (6), characterized in that: A partition (7) is fixedly connected to the interior of the box (4), a cooler (9) and a heater (8) are arranged inside the box (4), the docking device (3) comprises a first bracket (31), the left side surface of the first bracket (31) is fixedly connected to two springs (32), the left ends of the two springs (32) are fixedly connected to the right side surface of a connecting plate (33), the left side surface of the connecting plate (33) is rotatably connected to a screw rod (34) via a bearing, a nut (39) is threadedly connected to the outer surface of the screw rod (34), the nut (39) is clamped in a second bracket (37), the bottom end of the second bracket (37) is fixedly connected to two sliders (36), the two sliders (36) are fixedly connected to the same support plate (35), and the support plate (35) is fixedly connected to a second electric push rod (310); The water delivery device (6) comprises a water pump (61) and two valves (65); the water pump (61) is fixedly connected to the upper surface of the box (4); the water inlet of the water pump (61) is connected to the diversion pipe (62); both ends of the diversion pipe (62) are connected to the box (4); the water outlet of the water pump (61) is connected to the guide pipe (63); the guide pipe (63) passes through the bottom plate (1) and is connected to the two return pipes (64); the two return pipes (64) are connected to the box (4); and the two valves (65) are respectively arranged on both sides of the two return pipes (64) and on both sides of the diversion pipe (62); The air supply device (5) comprises a fan (52), the air outlet of the fan (52) being connected to a connecting pipe (53), the four ends of the connecting pipe (53) being connected to four air bags (54), one side of each of the four air bags (54) being fixedly connected to a clamping mechanism (2), the two clamping mechanisms (2) on the left side and the two clamping mechanisms (2) on the right side being fixedly connected to the second bracket (37) and the first bracket (31) respectively, the four parts of the guide pipe (63) being fixedly connected to the surfaces of the four air bags (54) in a serpentine shape, and the guide pipe (63) being fixedly connected to four thermoplastic materials (12).

2. The process equipment for flexible assembly of traction beams and flexible displacement welding according to claim 1 is characterized in that: The lower surface of the fan (52) is fixedly connected to the upper surface of the base (51), one side of the base (51) is fixedly connected to the outer surface of the box (4), the second electric push rod (310) is fixedly installed inside the fixing base (311), and the fixing base (311) is fixedly connected to the upper surface of the bottom plate (1).

3. The process equipment for flexible assembly of traction beams and flexible displacement welding according to claim 2 is characterized in that: The flow guide pipe (63) is configured as a hose, and the connecting pipe (53) is configured as a hose.

4. The process equipment for flexible assembly of traction beams and flexible displacement welding according to claim 3 is characterized in that: The clamping mechanism (2) comprises a support seat (21), wherein two support seats (21) on the left side and two support seats (21) on the right side are respectively fixedly connected to the outer surfaces of two second brackets (37) and two first brackets (31), and a first electric push rod (22) is clamped inside the support seat (21), one end of the first electric push rod (22) is fixedly connected to a clamping plate (23), and the clamping plate (23) is fixedly connected to the outer surface of the airbag (54).

5. The process equipment for flexible assembly of traction beams and flexible displacement welding according to claim 4 is characterized in that: Two slide grooves (13) are provided on the upper surface of the bottom plate (1), the two sliding blocks (36) are slidably connected in the two slide grooves (13) respectively, and one end of the screw rod (34) is fixedly connected to a turning handle (38).

6. The process equipment for flexible assembly of traction beams and flexible displacement welding according to claim 5 is characterized in that: Two guide sleeves (312) are fixedly connected inside the second bracket (37), and sliding rods (313) are slidably connected inside the two guide sleeves (312), and one end of the two sliding rods (313) is fixedly connected to the left side of the same connecting plate (33).

7. The process equipment for flexible assembly of traction beams and flexible displacement welding according to claim 6 is characterized in that: The upper surface of the first bracket (31) and the upper surface of the second bracket (37) are both fixedly connected to two support rods (11), the outer surfaces of the support rods (11) are both slidably connected to two movable plates (10), and the upper surfaces of the movable plates (10) are fixedly connected to the lower surface of the clamping plate (23).

8. The method for using the flexible assembly tooling and flexible displacement welding process equipment of the traction beam according to claim 7 is characterized in that: The following steps are involved: S1. First, the handle (38) is rotated so that the handle (38) drives the screw rod (34) to rotate, so that the screw rod (34) controls the connection plate (33) to move under the threaded connection of the nut (39), so that the connection plate (33) squeezes the spring (32) to generate compression deformation, and the elastic adjustment operation is completed at this time. Then, the two workpieces to be welded are respectively placed at the corresponding two positions of the thermoplastic material (12), and the second electric push rod (310) is controlled to operate so that the second electric push rod (310) drives the support plate (35) to move, so that the second bracket (37) moves, and the two workpieces are successfully butted; S2, then controlling the first electric push rod (22) to extend so that the first electric push rod (22) pushes the clamping plate (23) to move, so that the clamping plate (23) pushes the thermoplastic material (12) to move through the airbag (54), so that the thermoplastic material (12) clamps and positions the workpiece, then controlling the heater (8) to operate so that the heater (8) heats the liquid inside the box (4), then rotating the valve (65) above the heating chamber of the corresponding box (4), so that one side of the diverter pipe (62) is in an open state, and then controlling The water pump (61) is operated so that the water pump (61) extracts heated hot water through one end of the shunt pipe (62), so that the hot water enters the guide pipe (63) through the shunt pipe (62) and the water pump (61), and the hot water flows in a serpentine manner in the guide pipe (63), so that the hot water heats the thermoplastic material (12), so that the thermoplastic material (12) undergoes plastic deformation due to the heating, so that the thermoplastic material (12) adapts to the shape of the workpiece through the deformation, and at the same time, the hot water enters the heating chamber of the box (4) through the return pipe (64); S3. Finally, the fan (52) is controlled to operate so that the fan (52) delivers air, so that the air is transported through the connecting pipe (53) and enters the airbag (54), so that the airbag (54) expands, so that the airbag (54) controls the thermoplastic material (12) to closely fit the surface of the workpiece, and then the valve (65) above the heating chamber is rotated so that the valve (65) closes the opening on one side of the diverter pipe (62) and the return pipe (64). At this time, the other valve (65) is rotated to open the other opening of the diverter pipe (62) and the return pipe (64), and the water pump (61) is controlled to operate again so that the cold water inside the box (4) passes through the water pump (61) and enters the guide pipe (63), so that the cold water cools the thermoplastic material (12) when passing through it, so that the thermoplastic material (12) is shaped, and then the thermoplastic material (12) is firmly positioned on the workpiece.

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