Cold heading device for fastener machining

Abstract

The utility model discloses a cold heading device for fastener machining. The cold heading device comprises an operation table, a driving box is fixedly installed at the top of the operation table, a transverse plate is fixedly installed at the top of the driving box, a rotating disc is rotatably installed at the top of the transverse plate, eight cold heading holes distributed in an annular array are formed in the rotating disc, and a fixing plate is fixedly installed on the left side of the transverse plate. The automatic feeding device is reasonable in design, a spring can be used for pushing a push plate to clamp a workpiece to be machined, an electric push rod is used for pushing the corresponding workpiece into a discharging hole, so that the workpiece freely falls into a cold upsetting hole below, feeding is completed, the tooth number difference between an outer gear ring and an incomplete gear can be used for controlling a rotary disc to rotate by 45 degrees every time a motor rotates by one circle, and the workpiece can be automatically machined. Therefore, workpieces can be conveniently placed, machined and discharged into the eight cold heading holes in sequence, manual placing and picking operation is replaced, the risk of accidental injury is reduced, time and labor are saved, and the machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener processing technical field, concretely is a cold heading device for fastener processing. BACKGROUND

[0002] Cold heading process is one of new metal pressure processing processes without cutting. It is a processing method that makes metal volume redistribution and transfer by plastic deformation of metal under external force and with the help of die, thereby forming the required parts or blanks. Cold heading process is most suitable for producing standard fasteners such as bolts, screws, nuts, rivets and pins.

[0003] The technical key points of the cold heading device of the multi-station cold header for fastener processing disclosed in the patent with the patent number CN215845471U are as follows: a support plate is provided, a plurality of cold heading holes are formed in the support plate, a lower die is arranged in each cold heading hole, the plurality of lower dies are installed on the support plate through a plurality of electric push rods, a support frame is installed on the support plate, an upper cross frame is installed on the support frame through a plurality of electric telescopic rods, a plurality of upper dies are installed on the upper cross frame, a plurality of clamping frames are rotatably connected to the support plate through rotating rods, an electric motor is installed on the support plate, the plurality of rotating rods are connected through a transmission mechanism, a guide rod is installed on each clamping frame, two clamping plates are slidably connected to the guide rod, a spring is sleeved on the guide rod, and a magnetic block and an electromagnetic plate matched with the magnetic block are respectively installed on opposite ends of the two clamping plates.

[0004] The above-mentioned scheme still has at least the following defects in actual operation: the device needs manual placement of workpieces before cold heading operation, and manual picking and replacement of workpieces after cold heading processing, which affects the processing efficiency and causes safety hazards of accidental injury to the palm. Therefore, we propose a cold heading device for fastener processing to solve the above-mentioned problems. Utility model content

[0005] In view of the deficiencies of the prior art, the utility model provides a cold heading device for fastener processing, which solves the problems of manual placement of workpieces before cold heading operation, manual picking and replacement of workpieces after cold heading processing, which affects the processing efficiency and causes safety hazards of accidental injury to the palm.

[0006] To achieve the above object, the utility model provides the following technical scheme: A cold upsetting device for fastener processing, including operation platform, the top of operation platform is fixedly installed with drive box, the top of drive box is fixedly installed with cross board, the top of cross board is rotatably installed with carousel, eight cold upsetting holes that are annular array distribution are set up on carousel, the left side of cross board is fixedly installed with fixed plate, the top of fixed plate is fixedly installed with L type support, L type support is fixedly installed with hydraulic cylinder, the output end of hydraulic cylinder is fixedly installed with punch block, punch block is located above the leftmost cold upsetting hole and is compatible with cold upsetting hole, the drive mechanism that drive box is provided with controls carousel to rotate, the feeding mechanism that is used for automatic feeding is arranged on operation platform.

[0007] Preferably, the drive mechanism includes a rotary damper, a vertical shaft, an outer gear ring, a motor and an incomplete gear, the rotary damper is rotatably installed on the inner wall of the bottom of the drive box, the vertical shaft is fixedly installed on the connecting end of the rotary damper, the top end of the vertical shaft is fixedly connected with the carousel, the outer gear ring is fixedly installed on the vertical shaft, the motor is fixedly installed on the inner wall of the bottom of the drive box, and the incomplete gear is fixedly installed on the output shaft end of the motor and engaged with the outer gear ring.

[0008] Preferably, the number of teeth of the outer gear ring is eight times the number of teeth of the incomplete gear.

[0009] Preferably, the feeding mechanism includes a support rod, a feeding box and an electric push rod, the support rod is fixedly installed on the top of the operation platform and located behind the carousel, the feeding box is fixedly installed on the top end of the support rod, the electric push rod is fixedly installed on the rear inner wall of the feeding box, the bottom of the feeding box is provided with a discharging hole compatible with the workpiece, and the discharging hole is located above the corresponding cold upsetting hole.

[0010] Preferably, the feeding mechanism further includes a storage box, a push rod, a handle, a push plate and a spring, the storage box is fixedly installed on the right side of the feeding box, the left side of the storage box is communicated with the feeding box, the push rod is slidably installed on the right side wall of the storage box, the handle is fixedly installed on the right end of the push rod and located outside the storage box, the push plate is fixedly installed on the left end of the push rod and located inside the storage box, the spring is sleeved on the push rod, the left end of the spring is fixedly connected with the push plate, and the right end of the spring is fixedly connected with the storage box.

[0011] Preferably, the top right side of the cross board is provided with an avoiding groove located below the corresponding cold upsetting hole, and the top of the operation platform is provided with a collecting box located below the avoiding groove.

[0012] Preferably, the top of the operation platform is fixedly installed with a support block located below the punch block, and the top of the support block is fixedly connected with the cross board.

[0013] The utility model provides a cold upsetting device for fastener processing.

[0014] (1) This kind of cold upsetting device for fastener processing, by utilizing the drive mechanism that is composed of rotary damper, vertical shaft, outer gear ring, motor and incomplete gear, the number of teeth of outer gear ring and incomplete gear can be utilized to make the motor rotate 45 degrees every one circle, and then the workpiece can be placed into eight cold upsetting holes, processed and discharged in turn, instead of manual placement and pickup operation, and the risk of being injured is reduced.

[0015] (2) This kind of cold upsetting device for fastener processing, by utilizing the feeding mechanism that is composed of support rod, feeding box, electric push rod, storage box, push rod, handle, push plate and spring, the spring can be utilized to push the push plate to clamp the workpiece to be processed, and the corresponding workpiece can be pushed into the discharging hole by the electric push rod, so that the workpiece can freely fall into the cold upsetting hole below, the feeding is completed, time and labor are saved, and the processing efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is a main view of the utility model;

[0018] Figure 3 It is a three-dimensional structure schematic view of the feeding mechanism;

[0019] Figure 4 It is a three-dimensional structure schematic view of the utility model.

[0020] In the drawing: 1, operation table; 2, drive box; 3, horizontal plate; 4, rotating disc; 5, cold upsetting hole; 6, fixed plate; 7, L-shaped support; 8, hydraulic cylinder; 9, stamping block; 10, rotary damper; 11, vertical shaft; 12, outer gear ring; 13, motor; 14, incomplete gear; 15, support rod; 16, feeding box; 17, electric push rod; 18, discharging hole; 19, storage box; 20, push rod; 21, handle; 22, push plate; 23, spring; 24, avoiding groove; 25, collecting box; 26, supporting block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] As Figures 1-4As shown, this utility model provides a technical solution: a cold heading device for fastener processing, including an operating table 1, a drive box 2 fixedly installed on the top of the operating table 1, and an inspection port on the drive box 2 for inspecting internal components. A horizontal plate 3 is fixedly installed on the top of the drive box 2, and a turntable 4 is rotatably installed on the top of the horizontal plate 3. The turntable 4 has eight cold heading holes 5 arranged in a circular array. A fixing plate 6 is fixedly installed on the left side of the horizontal plate 3, and an L-shaped bracket 7 is fixedly installed on the top of the fixing plate 6. A hydraulic cylinder 8 is fixedly installed on the L-shaped bracket 7, and a stamping block 9 is fixedly installed at the output end of the hydraulic cylinder 8. The stamping block 9 is located above the leftmost cold heading hole 5 and is adapted to the cold heading hole 5. A support block 26 is fixedly installed on the top of the operating table 1 below the stamping block 9, and the top of the support block 26 is fixedly connected to the horizontal plate 3. A drive mechanism for controlling the rotation of the turntable 4 is provided inside the drive box 2, and a feeding mechanism for automatic feeding is provided on the operating table 1.

[0023] In this embodiment, the aforementioned drive mechanism includes a rotary damper 10, a vertical shaft 11, an external gear ring 12, a motor 13, and an incomplete gear 14. The rotary damper 10 is rotatably mounted on the bottom inner wall of the drive housing 2. The rotary damper 10 is used to prevent the vertical shaft 11 from continuing to rotate due to inertia when the external gear ring 12 and the incomplete gear 14 disengage. The vertical shaft 11 is fixedly mounted on the connecting end of the rotary damper 10, and the top end of the vertical shaft 11 is fixedly connected to the turntable 4. The external gear ring 12 is fixedly mounted on the vertical shaft 11. The motor 13 is fixedly mounted on the bottom inner wall of the drive housing 2. It should be noted that after being set, the motor 13 rotates only one revolution each time it starts running, thereby controlling the turntable 4 to rotate 45 degrees by the meshing rotation of the external gear ring 12 and the incomplete gear 14, that is, controlling the eight cold heading holes 5 to rotate once. The incomplete gear 14 is fixedly mounted on the output shaft end of the motor 13 and meshes with the external gear ring 12. The number of teeth of the external gear ring 12 is eight times the number of teeth of the incomplete gear 14.

[0024] In this embodiment, the feeding mechanism includes a support rod 15, a feeding box 16, and an electric push rod 17. The support rod 15 is fixedly installed on the top of the operating table 1 and located behind the turntable 4. The feeding box 16 is fixedly installed on the top of the support rod 15. The electric push rod 17 is fixedly installed on the rear inner wall of the feeding box 16. The bottom of the feeding box 16 has a discharge hole 18 adapted to the workpiece, which is located above the corresponding cold heading hole 5. The feeding mechanism also includes a storage box 19, a push rod 20, a handle 21, a push plate 22, and a spring 23. The storage box 19 is fixedly installed on the right side of the feeding box 16, and the left side of the storage box 19 is connected to the feeding box 16. The push rod 20 is slidably installed on the storage box 19. On the right side wall, a handle 21 is fixedly installed on the right end of the push rod 20 and located outside the storage box 19. The handle 21 allows for easy control of the push plate away from the loading box 16, thereby replenishing the workpiece to be processed. The push plate 22 is fixedly installed on the left end of the push rod 20 and located inside the storage box 19. A spring 23 is sleeved on the push rod 20. The left end of the spring 23 is fixedly connected to the push plate 22, and the right end of the spring 23 is fixedly connected to the storage box 19. The spring 23 can push the push plate 22 to clamp the workpiece to be processed. When the electric push rod 17 retracts, the leftmost workpiece will move to the first sequence. By controlling the extension of the electric push rod 17, the workpiece is pushed into the unloading hole 18, causing the workpiece to fall into the corresponding cold heading hole 5 below.

[0025] In this embodiment, the top right side of the horizontal plate 3 is provided with a clearance groove 24 located below the corresponding cold heading hole 5, and the top of the operating table 1 is provided with a collection box 25 located below the clearance groove 24. By using the clearance groove 24 and the collection box 25, the workpieces that fall after processing can be collected.

[0026] In this embodiment, a control switch is installed on the control panel 1. The hydraulic cylinder 8, motor 13, electric push rod 17 and control switch are electrically connected to the external power supply line in sequence through wires to form a circuit. The control switch can control the start and stop of the hydraulic cylinder 8, motor 13 and electric push rod 17 respectively.

[0027] With the above structure, the cold heading device for fastener processing provided by this utility model can use spring 23 to push push plate 22 to clamp the workpiece to be processed, and use electric push rod 17 to push the corresponding workpiece into the unloading hole 18, so that the workpiece falls freely into the cold heading hole 5 below, completing the loading. It can also use the difference in the number of teeth between the external gear ring 12 and the incomplete gear 14 to control the turntable 4 to rotate 45 degrees for every revolution of motor 13, thereby facilitating the sequential placement, processing and discharge of workpieces into the eight cold heading holes 5. This system replaces manual placement and picking operations, reducing the risk of accidental injury, saving time and effort, and improving processing efficiency. In specific use, the electric push rod 17 extends, pushing the first workpiece on the left forward. When the workpiece passes through the unloading hole 18, it falls downwards into the corresponding cold heading hole 5. The motor 13 then rotates, driving the incomplete gear 14 and the external gear ring 12 to mesh and rotate. By utilizing the difference in the number of teeth between the incomplete gear 14 and the external gear ring 12, the turntable 4 rotates 45 degrees, moving adjacent... Another cold heading hole 5 is moved below the blanking hole 18. The electric push rod 17 is retracted, and under the push of the spring 23, the push plate 22 pushes the second workpiece from the left to the far left. The electric push rod 17 is extended, pushing the first workpiece from the left forward. The workpiece falls into the second cold heading hole 5 through the blanking hole 18. The above operation is repeated, so that the first cold heading hole 5 is moved below the stamping block 9, and a workpiece is added into the third cold heading hole 5. The hydraulic cylinder 8 is extended, and the hydraulic cylinder 8 controls the stamping block 9 to move towards... The downward movement of the hydraulic cylinder 8 and the control of the motor 13 allow for the sequential addition of workpieces into the eight cold heading holes 5 and the sequential cold heading operation of the workpieces. When the first cold heading hole 5 moves to the far right, i.e., the first cold heading hole 5 is above the clearance groove 24, the workpieces processed in the cold heading hole 5 will fall freely into the collection box 25 for collection, replacing manual placement and picking of workpieces, reducing the risk of accidental injury, saving time, and greatly improving production efficiency.

[0028] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope described in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A cold heading apparatus for fastener processing, characterized in that: The system includes an operating table (1), a drive box (2) fixedly installed on the top of the operating table (1), a horizontal plate (3) fixedly installed on the top of the drive box (2), a turntable (4) rotatably installed on the top of the horizontal plate (3), eight cold heading holes (5) arranged in a circular array on the turntable (4), a fixing plate (6) fixedly installed on the left side of the horizontal plate (3), an L-shaped bracket (7) fixedly installed on the top of the fixing plate (6), a hydraulic cylinder (8) fixedly installed on the L-shaped bracket (7), a stamping block (9) fixedly installed at the output end of the hydraulic cylinder (8), the stamping block (9) is located above the leftmost cold heading hole (5) and is adapted to the cold heading hole (5), a drive mechanism for controlling the rotation of the turntable (4) is provided in the drive box (2), and a feeding mechanism for automatic feeding is provided on the operating table (1).

2. The cold heading device for fastener processing according to claim 1, characterized in that: The drive mechanism includes a rotary damper (10), a vertical shaft (11), an external gear ring (12), a motor (13), and an incomplete gear (14). The rotary damper (10) is rotatably mounted on the bottom inner wall of the drive box (2). The vertical shaft (11) is fixedly mounted on the connecting end of the rotary damper (10). The top end of the vertical shaft (11) is fixedly connected to the turntable (4). The external gear ring (12) is fixedly mounted on the vertical shaft (11). The motor (13) is fixedly mounted on the bottom inner wall of the drive box (2). The incomplete gear (14) is fixedly mounted on the output shaft end of the motor (13) and meshes with the external gear ring (12).

3. A cold heading device for fastener processing according to claim 2, characterized in that: The number of teeth of the external gear ring (12) is eight times the number of teeth of the incomplete gear (14).

4. A cold heading apparatus for fastener processing according to claim 1, characterized in that: The feeding mechanism includes a support rod (15), a feeding box (16), and an electric push rod (17). The support rod (15) is fixedly installed on the top of the operating table (1) and located behind the turntable (4). The feeding box (16) is fixedly installed on the top of the support rod (15). The electric push rod (17) is fixedly installed on the inner rear wall of the feeding box (16). The bottom of the feeding box (16) is provided with a discharge hole (18) adapted to the workpiece. The discharge hole (18) is located above the corresponding cold heading hole (5).

5. A cold heading apparatus for fastener processing according to claim 4, characterized in that: The feeding mechanism also includes a storage box (19), a push rod (20), a handle (21), a push plate (22), and a spring (23). The storage box (19) is fixedly installed on the right side of the feeding box (16), and the left side of the storage box (19) is connected to the feeding box (16). The push rod (20) is slidably installed on the right side wall of the storage box (19). The handle (21) is fixedly installed on the right end of the push rod (20) and located outside the storage box (19). The push plate (22) is fixedly installed on the left end of the push rod (20) and located inside the storage box (19). The spring (23) is sleeved on the push rod (20). The left end of the spring (23) is fixedly connected to the push plate (22), and the right end of the spring (23) is fixedly connected to the storage box (19).

6. A cold heading apparatus for fastener processing according to claim 1, characterized in that: The top right side of the horizontal plate (3) is provided with a clearance groove (24) located below the corresponding cold heading hole (5), and the top of the operating table (1) is provided with a collection box (25) located below the clearance groove (24).

7. A cold heading apparatus for fastener processing according to claim 1, characterized in that: The top of the operating table (1) is fixedly installed with a support block (26) located below the stamping block (9), and the top of the support block (26) is fixedly connected to the horizontal plate (3).

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