Adjustable anti-deformation plastic part welding tool

Abstract

The utility model discloses an adjustable anti-deformation plastic part welding tool, which relates to the technical field of plastic part welding and comprises a workbench, two hot air boxes are arranged at the upper end of the workbench, the output ends of the hot air boxes are fixedly connected with an air inducing pipe, and the other end of the air inducing pipe is fixedly connected with a hot air gun. Sliding grooves are formed in the left side and the right side of the upper end of the workbench, electric push rods are fixedly installed in the sliding grooves, the output ends of the electric push rods are fixedly connected with movable supports capable of sliding along the sliding grooves, lead screws are rotationally connected to the inner sides of the movable supports, and the outer surfaces of the lead screws are in threaded connection with movable bases attached to the inner walls of the movable supports. According to the device, hot air welding is adopted, the heating process is relatively uniform, the thermal stress around a welding joint is relatively small, and deformation, caused by the thermal stress, of a plastic part can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic parts welding, in particular to an adjustable anti-deformation plastic parts welding tool. Background Art

[0002] Plastic welding is a process of joining two or more plastic parts together, and is commonly used in the manufacture of various plastic products such as automotive parts, electronic products, home appliances and medical devices. It is an important processing method that has the advantages of higher strength and sealing, more beautiful appearance, material and cost savings, and higher production efficiency compared to traditional mechanical and adhesive connections.

[0003] Existing welding devices mainly use hot plate welding. During the welding process, the heat source of the hot plate welding directly contacts the welding part, and the heating range is more localized. Therefore, large thermal stress may be generated around the welding part, causing deformation of the plastic part. For this reason, we provide an adjustable anti-deformation plastic part welding tool to solve the above-mentioned problems. Utility Model Content

[0004] In order to solve the above technical problems, an adjustable anti-deformation plastic parts welding tool is provided. This technical solution solves the problem that the existing welding device proposed in the above background technology mainly adopts hot plate welding. During the welding process, the heat source of the hot plate welding directly contacts the welding part, and the heating range is more localized. Therefore, large thermal stress may be generated around the welding part, thereby causing deformation of the plastic parts.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A welding tool for plastic parts with adjustable deformation resistance comprises a workbench, wherein two hot air boxes are arranged on the upper end of the workbench, the output end of the hot air boxes is fixedly connected to an air duct, the other end of the air duct is fixedly connected to a hot air gun, slide grooves are provided on both the left and right sides of the upper end of the workbench, an electric push rod is fixedly installed inside the slide groove, a movable bracket capable of sliding along the slide groove is fixedly connected to the output end of the electric push rod, a screw rod is rotatably connected to the inner side of the movable bracket, a movable seat which is threadedly connected to the inner wall of the movable bracket on the outer surface of the screw rod, a fixed groove is penetrated at the upper end of the movable seat, two rotating shafts are rotatably connected inside the fixed groove, and the other end of the rotating shaft is fixedly connected to the outer surface of the hot air gun.

[0007] Preferably, the air duct is made of elastic material and can be retracted.

[0008] Preferably, a lower fixed seat is fixedly connected to the middle of the upper end of the workbench, a fixed bracket is fixedly connected to the rear of the upper end of the workbench, guide rods are fixedly connected to the four corners of the upper end of the lower fixed seat, and the other end of the guide rod is fixedly connected to the inner top end of the fixed bracket.

[0009] Preferably, the outer surface of the guide rod is slidably connected to a lifting plate, the lower end of the lifting plate is fixedly connected to a plurality of spring dampers, the other end of the spring damper is fixedly connected to an upper fixing seat, and the upper fixing seat is slidably connected to the outer surface of the guide rod.

[0010] Preferably, an upper end of the lower fixing seat and a lower end of the upper fixing seat are both provided with an adjustment groove, and a bidirectional threaded rod is rotatably connected inside the adjustment groove.

[0011] Preferably, both ends of the bidirectional threaded rod are threadedly connected with clamping plates that can slide along the adjustment groove, and the inner side of the clamping plate is fixedly connected with an anti-slip pad.

[0012] Preferably, a hydraulic cylinder is fixedly mounted on the upper end of the fixed bracket, and an output end of the hydraulic cylinder passes through the upper end of the fixed bracket and is fixedly connected to the upper end of the lifting plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] This scheme proposes an adjustable anti-deformation plastic parts welding tooling, which generates hot air with a temperature slightly higher than the softening temperature of the plastic parts through a hot air box. The hot air acts on the welding parts of the plastic parts through the induced draft duct and the hot air gun to soften them. The heating process is relatively uniform, and the thermal stress around the welding joint is relatively small, which can reduce the deformation of the plastic parts caused by thermal stress.

[0015] In this solution, a spring damper is provided, which can evenly distribute the pressure applied by the hydraulic cylinder on the surface of the plastic part during welding, thereby reducing the possibility of local deformation and, to a certain extent, reducing the deformation of the plastic part caused by excessive extrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the splint in the utility model

[0018] Figure 3 It is a structural schematic diagram of the movable seat in the utility model.

[0019] The numbers in the figure are:

[0020] 1. Workbench; 2. Hot air box; 3. Air duct; 4. Hot air gun; 5. Slide; 6. Electric push rod; 7. Moving bracket; 8. Screw rod; 9. Moving seat; 10. Fixed slot; 11. Rotating shaft; 12. Lower fixed seat; 13. Fixed bracket; 14. Guide rod; 15. Lifting plate; 16. Spring damping; 17. Upper fixed seat; 18. Adjustment slot; 19. Bidirectional threaded rod; 20. Clamp; 21. Anti-skid pad; 22. Hydraulic cylinder. DETAILED DESCRIPTION

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0022] Reference Figure 1 and Figure 3 As shown, an adjustable anti-deformation plastic parts welding tool comprises a workbench 1. Two hot air boxes 2 are arranged on the upper end of the workbench 1. The hot air boxes 2 are used to generate high-temperature gas. An intelligent temperature control system is arranged inside to accurately control the temperature. The output end of the hot air box 2 is fixedly connected to an air duct 3. The air duct 3 is made of elastic material and can be retracted. The other end of the air duct 3 is fixedly connected to a hot air gun 4. The hot air gun 4 can evenly apply hot air to the surface of the plastic part.

[0023] A slide groove 5 is provided on both sides of the upper end of the workbench 1, and an electric push rod 6 is fixedly installed inside the slide groove 5. The output end of the electric push rod 6 is fixedly connected to a movable bracket 7 that can slide along the slide groove 5. The inner side of the movable bracket 7 is rotatably connected to a screw rod 8. The outer surface of the screw rod 8 is threadedly connected to a movable seat 9 that fits the inner wall of the movable bracket 7. A fixed groove 10 is penetrated at the upper end of the movable seat 9. Two rotating shafts 11 are rotatably connected inside the fixed groove 10, and the other end of the rotating shaft 11 is fixedly connected to the outer surface of the hot air gun 4.

[0024] Furthermore, the rotating shaft 11 and the screw rod 8 are driven by an external motor. The horizontal position of the hot air gun 4 can be adjusted by pushing the movable bracket 7 through the electric push rod 6. The movable seat 9 can be driven to slide in the vertical direction by the external motor to drive the screw rod 8 to rotate, thereby adjusting the vertical position of the hot air gun 4. The rotating shaft 11 can be driven to rotate by the external motor to drive the hot air gun 4 to rotate, thereby adjusting the angle of the hot air gun 4.

[0025] Reference Figure 1 and Figure 2As shown, a lower fixed seat 12 is fixedly connected to the middle of the upper end of the workbench 1, a fixed bracket 13 is fixedly connected to the rear part of the upper end of the workbench 1, guide rods 14 are fixedly connected at the four corners of the upper end of the lower fixed seat 12, the other end of the guide rod 14 is fixedly connected to the inner top end of the fixed bracket 13, a lifting plate 15 is slidably connected to the outer surface of the guide rod 14, a plurality of spring dampers 16 are fixedly connected to the lower end of the lifting plate 15, the other end of the spring damper 16 is fixedly connected to an upper fixed seat 17, and the upper fixed seat 17 is slidably connected to the outer surface of the guide rod 14.

[0026] Furthermore, the guide rod 14 can limit the movement of the lifting plate 15 and the upper fixing seat 17, so that the position of the two plastic parts is more precise when docking. The spring damper 16 can evenly distribute the applied pressure on the surface of the plastic part during welding, thereby reducing the possibility of local deformation.

[0027] An adjustment groove 18 is provided at the upper end of the lower fixing seat 12 and the lower end of the upper fixing seat 17. A bidirectional threaded rod 19 is rotatably connected inside the adjustment groove 18. Both ends of the bidirectional threaded rod 19 are threadedly connected to a clamping plate 20 that can slide along the adjustment groove 18. An anti-slip pad 21 is fixedly connected to the inner side of the clamping plate 20.

[0028] Furthermore, the bidirectional threaded rod 19 is driven by an external motor. The motor drives the bidirectional threaded rod 19 to rotate, which can make the clamps 20 on both sides approach each other to clamp and fix the plastic part. Among them, the anti-slip pad 21 can increase the friction between the plastic part, making the clamping more stable.

[0029] A hydraulic cylinder 22 is fixedly installed on the upper end of the fixed bracket 13. The output end of the hydraulic cylinder 22 passes through the upper end of the fixed bracket 13 and is fixedly connected to the upper end of the lifting plate 15. The hydraulic cylinder 22 is used to drive the lifting plate 15 to move and apply pressure when the two plastic parts are connected.

[0030] Working principle: When the device is in use, firstly, two plastic parts are placed between the two clamping plates 20 of the upper fixing seat 17 and the lower fixing seat 12 respectively, and then the bidirectional threaded rod 19 is driven to rotate by an external motor so that the clamping plates 20 on both sides are close to each other to clamp the plastic parts, and then the movable bracket 7 is pushed to slide by the electric push rod 6, and the position of the hot air gun 4 is adjusted by the external motor to drive the screw rod 8 and the rotating shaft 11 to rotate. When the hot air gun 4 is adjusted to a suitable position, hot air is generated by the hot air box 2. The temperature of the hot air is slightly higher than the softening temperature of the plastic part. The generated hot air is uniformly applied to the welding part of the plastic part through the air duct 3 and the hot air gun 4. After the welding part is softened, the lifting plate 15 is driven down by the hydraulic cylinder 22 to dock the welding parts of the two plastic parts, and then the welding is completed by waiting for the plastic parts to cool down.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A plastic parts welding tool with adjustable anti-deformation, characterized in that: The invention comprises a workbench (1), wherein two hot air boxes (2) are arranged at the upper end of the workbench (1), the output end of the hot air boxes (2) is fixedly connected to an air duct (3), the other end of the air duct (3) is fixedly connected to a hot air gun (4), the left and right sides of the upper end of the workbench (1) are provided with slide grooves (5), the interior of the slide groove (5) is fixedly installed with an electric push rod (6), the output end of the electric push rod (6) is fixedly connected to a movable bracket (7) capable of sliding along the slide groove (5), the inner side of the movable bracket (7) is rotatably connected with a screw rod (8), the outer surface of the screw rod (8) is threadedly connected with a movable seat (9) which is in contact with the inner wall of the movable bracket (7), the upper end of the movable seat (9) is penetrated by a fixed groove (10), the interior of the fixed groove (10) is rotatably connected with two rotating shafts (11), the other end of the rotating shaft (11) is fixedly connected to the outer surface of the hot air gun (4).

2. The adjustable anti-deformation plastic welding tool according to claim 1, characterized in that: The air duct (3) is made of elastic material.

3. The adjustable anti-deformation plastic welding tool according to claim 1, characterized in that: A lower fixed seat (12) is fixedly connected to the middle of the upper end of the workbench (1), a fixed bracket (13) is fixedly connected to the rear of the upper end of the workbench (1), and guide rods (14) are fixedly connected to the four corners of the upper end of the lower fixed seat (12), and the other end of the guide rod (14) is fixedly connected to the inner top end of the fixed bracket (13).

4. The adjustable anti-deformation plastic welding tool according to claim 3, characterized in that: The outer surface of the guide rod (14) is slidably connected to a lifting plate (15), the lower end of the lifting plate (15) is fixedly connected to a plurality of spring dampers (16), the other end of the spring damper (16) is fixedly connected to an upper fixing seat (17), and the upper fixing seat (17) is slidably connected to the outer surface of the guide rod (14).

5. The adjustable anti-deformation plastic welding tool according to claim 3, characterized in that: An adjustment groove (18) is provided at the upper end of the lower fixing seat (12) and the lower end of the upper fixing seat (17), and a bidirectional threaded rod (19) is rotatably connected inside the adjustment groove (18).

6. The adjustable anti-deformation plastic welding tool according to claim 5, characterized in that: Both ends of the bidirectional threaded rod (19) are threadedly connected with a clamping plate (20) capable of sliding along the adjustment groove (18), and an anti-slip pad (21) is fixedly connected to the inner side of the clamping plate (20).

7. The adjustable anti-deformation plastic welding tool according to claim 3, characterized in that: A hydraulic cylinder (22) is fixedly mounted on the upper end of the fixed bracket (13), and an output end of the hydraulic cylinder (22) passes through the upper end of the fixed bracket (13) and is fixedly connected to the upper end of the lifting plate (15).

Images