Automobile high-brake light guide ultrasonic sweat soldering device

Abstract

The utility model discloses an ultrasonic sweat soldering device for an automobile high-brake light guide. The ultrasonic sweat soldering device comprises a hollow base and a feeding and discharging mechanism. An ultrasonic transducer is installed at the upper end of the hollow base, and a welding head is installed at the output end of the ultrasonic transducer through an amplitude-change pole. The feeding and discharging mechanism comprises a plate body, an automobile high-brake light guide groove, a buckle groove and conveying rollers, the plate body is transversely connected to the upper surface of the hollow base in a sliding mode, the automobile high-brake light guide groove and the buckle groove are formed in the upper surface of the plate body, and the conveying rollers are rotationally connected into grooves in the surface of the hollow base through first rotating shafts. The automobile high brake light guide and the buckles can be quickly positioned, the positions of the positioned automobile high brake light guide and the buckles can be automatically and accurately adjusted, the multiple buckles and the automobile high brake light guide can be conveniently welded, and the ultrasonic hot melting welding efficiency of the automobile high brake light guide is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive optical components, and particularly relates to an ultrasonic hot melt welding device for automotive high brake light guides. Background Technique

[0002] An automotive high brake light guide usually refers to a special type of high-mounted brake light on an automobile. It adopts light guide technology, which is a technology that uses light to propagate in a transparent or semi-transparent medium and guide light. In the application of automotive high-mounted brake lights, light guide technology can make the light emitted by the brake light more uniform and soft, and has better visual and warning effects. During the production of automotive high brake light guides, the edges of the automotive high brake light guides have buckles for installation, but the buckles cannot be integrally formed by injection molding on the automotive high brake light guide body. Therefore, it needs to be added later by ultrasonic hot melt welding.

[0003] In the prior art, when welding an automotive high brake light guide, first, the automotive high brake light guide and the buckle need to be placed at the welding position, and then the ultrasonic hot melt welding head is brought into contact with the welding position, and the automotive high brake light guide and the buckle are welded by using the heat generated by ultrasonic vibration. However, multiple buckles often need to be welded on the same automotive high brake light guide. During welding, the operator needs to frequently adjust the positions of the automotive high brake light guide and the buckle, resulting in low welding efficiency. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects, provide an ultrasonic hot melt welding device for automotive high brake light guides, quickly position the automotive high brake light guide and the buckle, automatically and accurately adjust the positions of the positioned automotive high brake light guide and the buckle, facilitate welding multiple buckles to the automotive high brake light guide, and improve the ultrasonic hot melt welding efficiency of the automotive high brake light guide, which can effectively solve the problems in the background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: An ultrasonic hot melt welding device for automotive high brake light guides, including a hollow base and a loading and unloading mechanism;

[0006] Hollow base: An ultrasonic transducer is installed at its upper end, and a welding head is installed at the output end of the ultrasonic transducer through a horn;

[0007] Loading and unloading mechanism: It includes a plate body, an automotive high brake light guide groove, a buckle groove, and conveying rollers. The plate body is horizontally slidably connected to the upper surface of the hollow base. The upper surface of the plate body is respectively provided with an automotive high brake light guide groove and a buckle groove. The conveying rollers are respectively rotatably connected to the grooves on the surface of the hollow base through a first rotating shaft, and the upper ends of the outer arcs of the conveying rollers are all attached to the lower surface of the plate body.

[0008] Further, a single-chip microcomputer is provided inside the hollow base. The input end of the single-chip microcomputer is electrically connected to an external power supply to control the start and stop of the overall device.

[0009] Further, the loading and unloading mechanism further includes a limit groove, a limit plate, a sliding column and a spring. The limit groove is arranged on the lower surface of the plate body. A limit plate is slidably connected inside the limit groove. The limit plate is in contact with the front and rear inner walls of the limit groove. Sliding columns are respectively arranged on the lower surface of the limit plate. The lower ends of the sliding columns respectively pass through through holes on the surface of the hollow base. Springs are arranged between the top wall of the hollow base and the limit discs at the lower ends of the sliding columns. The springs are movably sleeved on the outer arc surface of the sliding columns to limit the position of the plate body.

[0010] Further, the loading and unloading mechanism further includes rollers. The rollers are respectively rotatably connected to the grooves on the lower surface of the limit plate through the second rotating shafts. The lower ends of the outer arc surfaces of the rollers are all in contact with the bottom wall of the limit groove to reduce the frictional force received by the movement of the plate body.

[0011] Further, the loading and unloading mechanism further includes a worm gear, a worm and a dual-axis motor. The worm gears are respectively arranged at the ends of the first rotating shafts of the conveying rollers. The dual-axis motors are respectively arranged on the bottom wall of the hollow base. Worms are respectively arranged at the ends of the output shafts of the dual-axis motors. The worms are meshed with the worm gears. The input ends of the dual-axis motors are electrically connected to the output end of the single-chip microcomputer to provide power for the rotation of the conveying rollers.

[0012] Further, a photoelectric sensor is arranged in the mounting hole on the upper surface of the limit plate. Reflective plates are respectively arranged on the top wall of the limit groove. The reflective plates and the buckle grooves are longitudinally corresponding one by one. Limit push rods are respectively arranged in the middle of the hollow base. Limit insertion columns are respectively arranged at the upper ends of the telescopic ends of the limit push rods. The limit insertion columns are cooperatively installed with the limit slots on the lower surface of the plate body. The output end of the photoelectric sensor is electrically connected to the input end of the single-chip microcomputer. The input end of the limit push rod is electrically connected to the output end of the single-chip microcomputer to determine the position of the plate body.

[0013] Further, an adjusting push rod is arranged at the rear end of the hollow base. A shell is arranged at the upper end of the adjusting push rod. An ultrasonic generator is arranged inside the shell. An ultrasonic transducer is arranged at the lower end of the shell. The input end of the ultrasonic transducer is electrically connected to the output end of the ultrasonic generator. The input end of the ultrasonic generator is electrically connected to the output end of the single-chip microcomputer to adjust the position of the welding component.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The automotive high brake optical guide and multiple buckles are respectively placed inside the automotive high brake optical guide groove and the buckle groove to position the automotive high brake optical guide and the buckle. Under the restriction of the limiting plate, the conveying roller is in close contact with the plate body. The rotation of the conveying roller drives the plate body to move accurately left and right, quickly positioning the automotive high brake optical guide and the buckle, automatically and accurately adjusting the positions of the positioned automotive high brake optical guide and the buckle, facilitating the welding of multiple buckles to the automotive high brake optical guide, and improving the ultrasonic hot melt welding efficiency of the automotive high brake optical guide. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the side view section of the overall device of the present utility model;

[0017] Figure 3 is a schematic enlarged structural diagram of part A of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the front view section of the loading and unloading mechanism of the present utility model.

[0019] In the figure: 1 hollow base, 2 ultrasonic transducer, 3 loading and unloading mechanism, 301 plate body, 302 automotive high brake optical guide groove, 303 buckle groove, 304 limiting groove, 305 conveying roller, 306 limiting plate, 307 sliding column, 308 spring, 309 roller, 310 worm gear, 311 worm, 312 double-shaft motor, 4 photoelectric sensor, 5 reflector, 6 limiting push rod, 7 limiting plug, 8 single-chip microcomputer, 9 adjusting push rod, 10 ultrasonic generator, 11 housing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4, this embodiment provides an automotive high-brake light guide ultrasonic hot melt welding device, including a hollow base 1 and a loading and unloading mechanism 3; an ultrasonic transducer 2 is installed at the upper end of the hollow base 1, and a welding head is installed at the output end of the ultrasonic transducer 2 through a horn. The ultrasonic transducer 2 converts electrical energy into mechanical energy, adjusts the amplitude through the horn, and transfers ultrasonic energy to the welded part through the welding head. A single-chip microcomputer 8 is provided inside the hollow base 1, and the input end of the single-chip microcomputer 8 is electrically connected to an external power supply to control the start and stop of the overall device. An adjusting push rod 9 is provided at the rear end of the hollow base 1 to adjust the up and down position of the welding part so that the welding head contacts the welded part. A housing 11 is provided at the upper end of the adjusting push rod 9 to provide space for the setting of the ultrasonic welding part. An ultrasonic generator 10 is provided inside the housing 11 to provide high-frequency oscillating current for ultrasonic welding. An ultrasonic transducer 2 is provided at the lower end of the housing 11, and the input end of the ultrasonic transducer 2 is electrically connected to the output end of the ultrasonic generator 10. The input end of the ultrasonic generator 10 is electrically connected to the output end of the single-chip microcomputer 8.

[0022] Among them, the loading and unloading mechanism 3 includes a plate body 301, an automotive high brake light guide groove 302, a snap groove 303, and conveying rollers 305. The plate body 301 is horizontally slidably connected to the upper surface of the hollow base 1. The upper surface of the plate body 301 is respectively provided with the automotive high brake light guide groove 302 and the snap groove 303. The conveying rollers 305 are respectively rotationally connected to the grooves on the surface of the hollow base 1 through a first rotating shaft. The upper ends of the outer arcs of the conveying rollers 305 are all in contact with the lower surface of the plate body 301. The loading and unloading mechanism 3 further includes a limiting groove 304, a limiting plate 306, sliding columns 307, and springs 308. The limiting groove 304 is arranged on the lower surface of the plate body 301. A limiting plate 306 is slidably connected inside the limiting groove 304. The limiting plate 306 is in contact with the front and rear inner walls of the limiting groove 304 to limit the front and rear positions of the plate body 301. Sliding columns 307 are respectively arranged on the lower surface of the limiting plate 306. The lower ends of the sliding columns 307 respectively pass through the through holes on the surface of the hollow base 1. Springs 308 are respectively arranged between the top wall of the hollow base 1 and the limiting discs at the lower ends of the sliding columns 307. The springs 308 are movably sleeved on the outer arcs of the sliding columns 307. Under the elastic force of the springs 308, the limiting plate 306 exerts a downward force on the plate body 301, making the plate body 301 in close contact with the conveying rollers 305 to improve the accuracy of conveying. The loading and unloading mechanism 3 further includes rollers 309. The rollers 309 are respectively rotationally connected to the grooves on the lower surface of the limiting plate 306 through a second rotating shaft. The lower ends of the outer arcs of the rollers 309 are all in contact with the bottom wall of the limiting groove 304. By the relative rotation of the rollers 309 and the bottom wall of the limiting groove 304, the friction force during the movement of the plate body 301 is reduced. The loading and unloading mechanism 3 further includes worm gears 310, worm shafts 311, and a dual-shaft motor 312. The worm gears 310 are respectively arranged at the ends of the first rotating shafts of the conveying rollers 305. The dual-shaft motor 312 is respectively arranged on the bottom wall of the hollow base 1. Worm shafts 311 are respectively arranged at the ends of the output shafts of the dual-shaft motor 312. The worm shafts 311 are meshed with the worm gears 310. The input ends of the dual-shaft motor 312 are electrically connected to the output end of the single-chip microcomputer 8. A photoelectric sensor 4 is arranged in the mounting holes on the upper surface of the limiting plate 306. Reflective plates 5 are respectively arranged on the top wall of the limiting groove 304. The reflective plates 5 are in one-to-one longitudinal position correspondence with the snap grooves 303. Limiting push rods 6 are respectively arranged in the middle of the hollow base 1. The upper ends of the telescopic ends of the limiting push rods 6 are respectively provided with limiting insertion posts 7. The limiting insertion posts 7 are cooperatively installed with the limiting insertion slots on the lower surface of the plate body 301. The output end of the photoelectric sensor 4 is electrically connected to the input end of the single-chip microcomputer 8. The input end of the limiting push rod 6 is electrically connected to the output end of the single-chip microcomputer 8.

[0023] The working principle of the present utility model is as follows:

[0024] During use, place the automotive high brake light guide inside the automotive high brake light guide groove 302, and place multiple buckles into the buckle grooves 303 respectively to position the automotive high brake light guide and the buckles. Under the elastic force of the spring 308, use the limiting plate 306 to apply a downward force to the plate body 301, so that the plate body 301 is closely attached to the conveying roller 305. Start the dual-axis motor 312, and the output shaft of the dual-axis motor 312 drives the worm 311 to rotate. Through the meshing connection between the worm 311 and the worm wheel 310, the worm wheel 310 drives the conveying roller 305 to rotate, and use the conveying roller 305 to drive the plate body 301 to move left and right to adjust the welding position of the automotive high brake light guide;

[0025] During the movement of the plate body 301, when the photoelectric sensor 4 receives the light reflected by the reflector 5, the plate body 301 stops moving. At this time, the vertical positions of the limit insertion post 7 and the limit slot on the lower surface of the plate body 301 correspond. Start the limit push rod 6, and the telescopic end of the limit push rod 6 drives the limit insertion post 7 to move up and insert into the limit slot on the lower surface of the plate body 301 to limit the movement of the plate body 301. At this time, the contact point between the automotive high brake light and the buckle is directly below the ultrasonic transducer 2. Start the ultrasonic generator 10, and the ultrasonic energy generated by the ultrasonic generator 10 is converted into mechanical movement through the ultrasonic transducer 2. Through the connection of the horn, the welding head vibrates. Start the adjustment push rod 9, and the telescopic end of the adjustment push rod 9 drives the housing 11 to move down, so that the welding head contacts the welding point between the automotive high brake light and the buckle to weld the automotive high brake light and the buckle. Repeat the above operations to continuously and automatically weld multiple buckles to the automotive high brake light guide.

[0026] It should be noted that in the above embodiments, the single-chip microcomputer 8 can be selected as the single-chip microcomputer of the AT89C4051 model, and the dual-axis motor 312, photoelectric sensor 4, limit push rod 6, adjustment push rod 9, ultrasonic transducer 2 and ultrasonic generator 10 can be freely configured according to the actual application scenario. The dual-axis motor 312 can be selected as the dual-axis motor of the STP-28D1003 model, the photoelectric sensor 4 can be selected as the reflective photoelectric sensor of the KR3630 model, the limit push rod 6 and the adjustment push rod 9 can both be selected as the electric push rods of the LAM1 model, the ultrasonic generator 10 can be selected as the ultrasonic generator of the BJE-300W model, and the ultrasonic transducer 2 can be selected as the ultrasonic transducer of the YP-6015-6BD model. The single-chip microcomputer 8 controls the operation of the dual-axis motor 312, photoelectric sensor 4, limit push rod 6, adjustment push rod 9, ultrasonic transducer 2 and ultrasonic generator 10 using the commonly used methods in the existing technology.

[0027] The above are only the embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included within the patent protection scope of the present utility model.

Claims

1. An automotive high brake optical ultrasonic hot melt welding device, characterized in that: It comprises a hollow base (1) and a loading and unloading mechanism (3); An ultrasonic transducer (2) is installed at the upper end of the hollow base (1), and a welding head is installed at the output end of the ultrasonic transducer (2) via a horn; The loading and unloading mechanism (3) comprises a plate body (301), a car high brake light guide groove (302), a buckle groove (303) and a conveying roller (305); the plate body (301) is slidably connected to the upper surface of the hollow base (1) in a transverse manner; the upper surface of the plate body (301) is provided with a car high brake light guide groove (302) and a buckle groove (303); the conveying roller (305) is rotatably connected to a groove on the surface of the hollow base (1) via a rotating shaft; and the upper end of the outer arc surface of the conveying roller (305) is in contact with the lower surface of the plate body (301).

2. The automotive high brake optical ultrasonic hot melt welding device according to claim 1 is characterized in that: A single-chip microcomputer (8) is arranged inside the hollow base (1), and an input end of the single-chip microcomputer (8) is electrically connected to an external power supply.

3. The automotive high brake optical ultrasonic hot melt welding device according to claim 2 is characterized in that: The loading and unloading mechanism (3) further comprises a limit groove (304), a limit plate (306), a slide column (307) and a spring (308); the limit groove (304) is arranged on the lower surface of the plate body (301); the limit groove (304) is internally slidably connected to the limit plate (306); the limit plate (306) is fitted with the front and rear inner walls of the limit groove (304); slide columns (307) are respectively arranged on the lower surface of the limit plate (306); the lower ends of the slide columns (307) respectively pass through the through holes on the surface of the hollow base (1); a spring (308) is arranged between the top wall of the hollow base (1) and the limit plate at the lower end of the slide column (307); the spring (308) is movably sleeved on the outer arc surface of the slide column (307).

4. The automotive high brake optical ultrasonic hot melt welding device according to claim 3 is characterized in that: The loading and unloading mechanism (3) further comprises rollers (309), which are rotatably connected to the grooves on the lower surface of the limiting plate (306) via the second rotating shaft, and the lower ends of the outer arc surfaces of the rollers (309) are in contact with the bottom wall of the limiting groove (304).

5. The automotive high brake optical ultrasonic hot melt welding device according to claim 2, characterized in that: The loading and unloading mechanism (3) further comprises a worm wheel (310), a worm (311) and a double-axis motor (312); the worm wheel (310) is respectively arranged at one end of the rotating shaft of the conveying roller (305); the double-axis motor (312) is respectively arranged at the bottom wall of the hollow base (1); the output shaft end of the double-axis motor (312) is provided with a worm (311); the worm (311) is meshedly connected with the worm wheel (310); and the input end of the double-axis motor (312) is electrically connected to the output end of the single-chip microcomputer (8).

6. The automotive high brake optical ultrasonic hot melt welding device according to claim 3, characterized in that: A photoelectric sensor (4) is provided in the mounting hole on the upper surface of the limit plate (306), and a reflector (5) is provided on the top wall of the limit groove (304). The reflector (5) corresponds to the buckle groove (303) in longitudinal position. A limit push rod (6) is provided in the middle of the hollow base (1). A limit plug (7) is provided at the upper end of the telescopic end of the limit push rod (6). The limit plug (7) is installed in cooperation with the limit slot on the lower surface of the plate body (301). The output end of the photoelectric sensor (4) is electrically connected to the input end of the single-chip microcomputer (8), and the input end of the limit push rod (6) is electrically connected to the output end of the single-chip microcomputer (8).

7. The automotive high brake optical ultrasonic hot melt welding device according to claim 2, characterized in that: The rear end of the hollow base (1) is provided with an adjusting push rod (9), the upper end of the adjusting push rod (9) is provided with a shell (11), an ultrasonic generator (10) is provided inside the shell (11), an ultrasonic transducer (2) is provided at the lower end of the shell (11), the input end of the ultrasonic transducer (2) is electrically connected to the output end of the ultrasonic generator (10), and the input end of the ultrasonic generator (10) is electrically connected to the output end of the single chip computer (8).

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