Automatic brazing device for pin assembly

Abstract

The utility model relates to the technical field of brazing, in particular to an automatic brazing device for pin assemblies, which comprises a box body, a material returning mechanism, a transmission mechanism and an electric rotary table, a rotary table is mounted on the electric rotary table, and a plurality of U-shaped bayonets for clamping the pin assemblies are circumferentially arranged on the outer circle of the rotary table. The pushing mechanism sequentially pushes the pin assemblies conveyed on the conveying mechanism into the U-shaped bayonets, the lifting mechanism is installed on the outer side of the box body, the high-frequency welding machine is installed on the lifting mechanism, and an induction coil of the high-frequency welding machine is arranged in the box body after passing through a lifting window formed in the box body. And an induction coil of the high-frequency welding machine is positioned right above the motion trail of the pin component on the turntable. By means of the pin assembly induction brazing feeding and brazing device, feeding and brazing of pin assembly induction brazing are automatically achieved, multi-station production can be achieved, production efficiency is greatly improved, direct participation of workers is avoided, and harm of electromagnetic radiation to human bodies is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of brazing, in particular to an automatic brazing device for a pin assembly. Background Art

[0002] The lock pin is generally composed of a pin and an ear piece. The lock pin has a wide range of uses and is in great demand in daily life. There is a certain demand for the production of the lock pin. Brazing is required when processing the lock pin. At the same time, due to the simple joint form of the lock pin, induction brazing is very suitable for the joint form of the lock pin. The quality of the welded joint is also greatly improved compared to flame brazing. The problems with induction brazing of the lock pin are: 1. During induction brazing, the lock pins must be placed one by one in the induction coil for heating and brazing, which has low production efficiency. Due to the large number of parts required, the production capacity of induction brazing is insufficient; 2. Induction brazing is heated by the induced current generated by the alternating magnetic field. The brazing process generates a large amount of electromagnetic radiation. Long-term and excessive electromagnetic radiation will endanger your health; 3. Since the induction coil and the brazed parts are close to each other, the welder is likely to come into contact with the induction coil during the insertion and removal process, which will cause leakage hazards. Utility Model Content

[0003] The utility model aims to solve the above defects and provides an automatic brazing device for a pin assembly.

[0004] In order to overcome the defects existing in the background technology, the technical solution adopted by the utility model to solve its technical problems is: an automatic brazing device for pin assemblies, comprising a box body, wherein both ends of the box body are penetrated to form a working channel, a conveying mechanism for transmitting the pin assembly and a pushing mechanism for pushing the pin assembly are arranged on the side of the working channel, and a plurality of electric turntables are installed on the bottom surface, a turntable is installed on the electric turntable, and a plurality of U-shaped bayonet holes for clamping the pin assemblies are circumferentially arranged on the outer circle of the turntable, and the pushing mechanism pushes the pin assemblies conveyed on the conveying mechanism into the U-shaped bayonet holes in sequence, a lifting mechanism is installed on the outside of the box body, and a high-frequency welding machine is installed on the lifting mechanism, the induction coil of the high-frequency welding machine is arranged in the box body after passing through the lifting window opened on the box body, and the induction coil of the high-frequency welding machine is located directly above the movement trajectory of the pin assembly on the turntable.

[0005] A further improvement includes that the entrance end of the U-shaped bayonet adopts a V-shaped structure.

[0006] A further improvement includes symmetrically setting spring pieces on the side walls of the U-shaped bayonet to limit the pin assembly.

[0007] Further improvements include that the conveying mechanism includes two transmission wheels located in the box, a conveyor belt and a drive motor installed on the outside of the box, the rotating shafts of the two transmission wheels are respectively connected to the output ends of the drive motor, the two transmission wheels are connected by a sleeve conveyor belt, a plurality of clamps are equidistantly and vertically arranged on the conveyor belt, and a placement slot for inserting a pin assembly is provided on the free end of the clamp.

[0008] A further improvement includes a plurality of rollers being arranged in a rolling manner in the box body, and the rollers being located directly below the conveyor belt.

[0009] A further improvement includes providing side panels parallel to the working channel at both ends of the box, with the drive motor being installed on one side of the side panel and the transmission wheel being located on the other side of the side panel.

[0010] A further improvement includes that the pushing mechanism includes a pneumatic rod installed on the side wall of the working channel and a pushing head connected to the output end of the pneumatic rod.

[0011] A further improvement includes installing a cylinder bracket on the inner wall of the box, installing a double cylinder on the cylinder bracket, and the double cylinder is located directly below the induction coil of the high-frequency welding machine.

[0012] A further improvement includes providing a connecting bracket between the electric turntable and the turntable.

[0013] A further improvement includes opening a material taking window on the top of the box body facing the turntable.

[0014] The beneficial effects of the utility model are as follows: the design realizes automatic feeding and brazing of induction brazing of pin components, and can be multi-station production, greatly improving production efficiency, avoiding direct participation of workers, reducing harm to the human body caused by electromagnetic radiation, and during the production process, personnel do not contact with the induction coil, avoiding harm to people caused by coil leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 It is a front cross-sectional view of the utility model;

[0018] Figure 3 yes Figure 1 Middle DD section view;

[0019] Figure 4 It is the front view of the turntable in the utility model;

[0020] Figure 5 yes Figure 4 Middle A: Enlarged view;

[0021] Figure 6 It is the front view of the splint in the utility model;

[0022] In the figure, 1-transmission wheel, 2-clamping plate, 3-turntable, 4-feeding window, 5-box, 6-working channel, 7-connecting bracket, 8-roller, 9-conveyor belt, 10-side plate, 11-electric turntable, 12-lifting mechanism, 13-lifting window, 14-high frequency welding machine, 15-driving motor, 16-pneumatic rod, 17-push head, 18-double cylinder, 19-cylinder bracket, 20-U-shaped bayonet, 21-shrapnel, 22-placement bayonet. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The embodiments in the basic utility model and all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] according to Figure 1 , Figure 2 and Figure 3 As shown, an automatic brazing device for pin assemblies comprises a box body 5, two ends of the box body 5 are penetrated to form a working channel 6, a conveying mechanism for transmitting the pin assembly and a pushing mechanism for pushing the pin assembly are arranged on the side of the working channel 6, and a plurality of electric turntables 11 are installed on the bottom surface, and the plurality of electric turntables 11 realize multi-station production, a turntable 3 is installed on the electric turntable 11, and a plurality of U-shaped bayonet holes 20 for clamping the pin assemblies are circumferentially arranged on the outer circle of the turntable 3, and the pushing mechanism pushes the pin assemblies conveyed by the conveying mechanism into the box body 5 in sequence. In the U-shaped bayonet 20, a lifting mechanism 12 is installed on the outside of the box body 5, and a high-frequency welder 14 is installed on the lifting mechanism 12. The induction coil of the high-frequency welder 14 is set in the box body 5 after passing through the lifting window 13 opened on the box body 5, and the induction coil of the high-frequency welder 14 is located directly above the movement trajectory of the pin assembly on the turntable 3. The pin and the ear piece are brazed by the induction coil. The lifting mechanism 12 is used to drive the high-frequency welder 14 to move up and down so that the induction coil is sleeved on the pin to prevent the turntable 3 from touching the induction coil when driving the pin to rotate.

[0025] This design realizes automatic loading and brazing of induction brazing of pin components, and can be used for multi-station production, which greatly improves production efficiency, avoids direct participation of workers, reduces the harm of electromagnetic radiation to the human body, and during the production process, personnel do not come into contact with the induction coil, avoiding the harm of coil leakage to people.

[0026] according to Figure 4 As shown, the entrance end of the U-shaped bayonet 20 adopts a V-shaped structure, which is conducive to inserting the pin assembly into the U-shaped bayonet 20, and the V-shaped structure has a guiding function.

[0027] according to Figure 5 As shown, spring pieces 21 for limiting the pin assembly are symmetrically arranged on the side walls of the U-shaped bayonet 20. When the pin assembly enters the U-shaped bayonet 20 and passes through the spring pieces 21, the spring pieces 21 are deformed. After the pin assembly passes through the spring pieces 21, the shape of the spring pieces 21 is restored to limit the pin assembly, thereby preventing the pin assembly from moving out of the U-shaped bayonet 20.

[0028] according to Figure 2 , Figure 3 and Figure 6 As shown, the conveying mechanism includes two transmission wheels 1 located in a box body 5, a conveyor belt 9, and a driving motor 15 installed on the outside of the box body 5. The rotating shafts of the two transmission wheels 1 are respectively connected to the output ends of the driving motor 15. The two transmission wheels 1 are connected by a sleeve conveyor belt 9. A plurality of clamps 2 are equidistantly and vertically arranged on the conveyor belt 9. A placement slot 22 for inserting a pin assembly is provided on the free end of the clamp 2. The driving motor 15 drives the clamp 2 for conveying through belt transmission.

[0029] A plurality of rollers 8 are rotatably arranged in the box body 5 , and the rollers 8 are located directly below the conveyor belt 9 , thereby supporting the conveyor belt 9 .

[0030] Side panels 10 parallel to the working channel 6 are respectively provided at both ends of the box body 5, and the driving motor 15 is installed on one side of the side panel 10, and the transmission wheel 1 is located on the other side of the side panel 10. Through this design, both ends of the conveyor belt 9 are located outside the box body 5, which is convenient for manually placing the pin assembly in the placement slot 22 of the clamp 2.

[0031] according to Figure 3 As shown, the pushing mechanism includes a pneumatic rod 16 installed on the side wall of the working channel 6 and a pushing head 17 connected to the output end of the pneumatic rod 16. The output end of the pneumatic rod 16 drives the pushing head 17 to move back and forth, pushing the pin assembly from the placement slot 22 into the U-shaped slot 20, and automatic loading is achieved through the pushing mechanism.

[0032] A cylinder bracket 19 is installed on the inner wall of the box body 5, and a double cylinder 18 is installed on the cylinder bracket 19. The double cylinder 18 is located directly below the induction coil of the high-frequency welding machine 14. The pin assembly is pushed by the double cylinder 18 to slightly lift the pin assembly, thereby pushing it into the induction coil for easy brazing.

[0033] A connecting bracket 7 is provided between the electric turntable 11 and the turntable 3 , and the connecting bracket 7 is used to adjust the height of the turntable 3 .

[0034] A material taking window 4 facing the turntable 3 is provided on the top of the box body 5, and the manipulator takes out the welded finished product through the material taking window 4, and the material taking window 4 can also discharge the smoke generated by brazing.

[0035] Working principle: start the drive motor 15 to drive the transmission wheel 1 to rotate synchronously, then place the pre-installed pin assembly on the placement slot 22 of the splint 2, and the conveyor belt 9 drives the splint 2 on the conveyor belt 9 to move. At the same time, the electric turntable 11 drives the turntable 3 to rotate slowly. When the placement slot 22 on the splint 2 is docked with the U-shaped slot 20 on the turntable 3, the pneumatic rod 16 drives the push head 17 to push the pin assembly into the U-shaped slot 20, and the turntable 3 drives the U-shaped slot 20 to rotate to the bottom of the induction coil of the high-frequency welding machine 14, and the lifting mechanism 12 drives the high-frequency welding machine 14 to move downward. At the same time, the output end of the double cylinder 18 outputs outward to push the pin assembly to be slightly lifted, so that the pin and the ear piece are brazed. After welding, the output end of the double cylinder 18 shrinks inward, and the lifting mechanism 12 drives the high-frequency welding machine 14 to move up. The turntable 3 rotates to continue welding the next pin assembly, and finally the manipulator takes the pin assembly out of the turntable 3 through the material taking window 4.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic brazing device for a pin assembly, characterized in that: The invention comprises a box body (5), wherein both ends of the box body (5) are provided with a working channel (6), a conveying mechanism for conveying a pin assembly and a pushing mechanism for pushing the pin assembly are arranged on the side of the working channel (6), and a plurality of electric turntables (11) are installed on the bottom surface, a turntable (3) is installed on the electric turntable (11), and a plurality of U-shaped bayonet holes (20) for clamping the pin assembly are circumferentially arranged on the outer circumference of the turntable (3), and the pushing mechanism pushes the pin assembly conveyed by the conveying mechanism into the U-shaped bayonet holes (20) in sequence, a lifting mechanism (12) is installed on the outer side of the box body (5), and a high-frequency welding machine (14) is installed on the lifting mechanism (12), and the induction coil of the high-frequency welding machine (14) is arranged in the box body (5) after passing through the lifting window (13) provided on the box body (5), and the induction coil of the high-frequency welding machine (14) is located directly above the movement track of the pin assembly on the turntable (3).

2. An automatic brazing device for pin components as claimed in claim 1, characterized in that: The inlet end of the U-shaped bayonet (20) adopts a V-shaped structure.

3. An automatic brazing device for pin components according to claim 1 or 2, characterized in that: Spring pieces (21) for limiting the position of the pin assembly are symmetrically arranged on the side walls of the U-shaped bayonet (20).

4. The automatic brazing device for pin assembly according to claim 1, characterized in that: The conveying mechanism comprises two transmission wheels (1) located in a box body (5), a conveyor belt (9), and a driving motor (15) installed outside the box body (5); the rotating shafts of the two transmission wheels (1) are respectively connected to the output ends of the driving motor (15); the two transmission wheels (1) are connected by a sleeved conveyor belt (9); a plurality of clamping plates (2) are equidistantly arranged vertically on the conveyor belt (9); and a placement slot (22) for clamping a pin assembly is provided on the free end of the clamping plate (2).

5. An automatic brazing device for pin components as claimed in claim 4, characterized in that: A plurality of rollers (8) are rotatably arranged in the box body (5), and the rollers (8) are located directly below the conveyor belt (9).

6. An automatic brazing device for pin components as claimed in claim 4, characterized in that: Side panels (10) parallel to the working channel (6) are respectively provided at both ends of the box body (5), and the drive motor (15) is installed on one side of the side panel (10), and the transmission wheel (1) is located on the other side of the side panel (10).

7. An automatic brazing device for pin components as claimed in claim 1, characterized in that: The material pushing mechanism comprises a pneumatic rod (16) mounted on the side wall of the working channel (6) and a pushing head (17) connected to the output end of the pneumatic rod (16).

8. An automatic brazing device for pin components as claimed in claim 1, characterized in that: A cylinder bracket (19) is mounted on the inner wall of the box body (5), a double cylinder (18) is mounted on the cylinder bracket (19), and the double cylinder (18) is located directly below the induction coil of the high-frequency welding machine (14).

9. An automatic brazing device for pin components as claimed in claim 1, characterized in that: A connecting bracket (7) is provided between the electric turntable (11) and the turntable (3).

10. An automatic brazing device for pin components as claimed in claim 1, characterized in that: The top of the box body (5) is provided with a material taking window (4) facing the turntable (3).

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