Multi-station cold heading device for nut production

Abstract

The utility model discloses a multi-station cold heading device for nut production, which comprises a base and a bottom die mounted in the center of the base, a cold heading mechanism is arranged above the bottom die, and a clutch mechanism is arranged on the right side of the base. The cold heading mechanism comprises a set of fixed round rods, a mounting plate, a driving motor, a transmission shaft, a first connecting rod, a second connecting rod, a first sliding seat, a second sliding seat and a top die. The clutch mechanism comprises a mounting frame, a rectangular groove, an eccentric wheel, a rotating handle, a set of sliding rods, a pushing plate, a set of limiting rods and a set of limiting blocks. The nut cold heading machine has the advantages that the cold heading mechanism is arranged above the bottom die, the driving motor is decelerated through the transmission belt to drive the top dies at the bottoms of the first sliding seat and the second sliding seat, nut cold heading treatment is achieved, during feeding and discharging, a set of limiting rods are separated from the first sliding seat through the clutch mechanism, power cutting is achieved, and the nut cold heading machine is simple in structure and convenient to operate. Therefore, the feeding and discharging safety is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nut cold heading forming, in particular to a multi-station cold heading device for nut production. Background Art

[0002] Cold heading is one of the new chipless metal pressure processing technologies. It is a processing method that utilizes the plastic deformation of metal under the action of external force and uses a mold to redistribute and transfer the metal volume to form the required parts or blanks. The cold heading process is most suitable for the production of standard fasteners such as bolts, screws, nuts, rivets, and pins.

[0003] The existing patent application number is CN 202320786811.3, which discloses a multi-station nut cold forging device, which can hammer the sample in the mold through a hydraulic device to achieve the shaping of the nut. However, when loading and unloading the nut, it needs to be manually held, and the hydraulic device does not stop working, which poses a great safety hazard and is prone to accidents.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0005] In view of the above defects, the utility model provides a multi-station cold heading device for nut production to solve the cold heading problem of nut production.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A multi-station cold heading device for nut production comprises a base and a bottom die installed at the center of the base, a cold heading mechanism is arranged above the bottom die, and a clutch mechanism is arranged on the right side of the base;

[0008] The cold heading mechanism includes a group of fixed round rods, a mounting plate, a driving motor, a transmission shaft, connecting rod one, connecting rod two, sliding seat one, sliding seat two and a top die. A group of fixed round rods are installed on the base, the mounting plate is installed on the upper end of a group of fixed round rods, the driving motor is horizontally installed on the left side of the mounting plate, the transmission shaft is movably installed on the mounting plate, the connecting rod one is installed on the front end of the transmission shaft, the connecting rod two is hinged at the front end of the connecting rod one, the sliding seat one is movably mounted on a group of fixed round rods, and the upper end is hinged to the connecting rod two, the sliding seat two is movably mounted on the lower end of a group of fixed round rods, and the top die is installed at the bottom of the sliding seat two.

[0009] Furthermore, the clutch mechanism includes a mounting frame, a rectangular groove, an eccentric wheel, a rotating handle, a group of sliding rods, a pushing plate, a group of limit rods and a group of limit blocks. The mounting frame is installed on the right side of the base, the rectangular groove is opened in the mounting frame, the eccentric wheel is movably installed in the rectangular groove, the rotating handle is installed at the front end of the eccentric wheel, a group of sliding rods are movably inserted in the upper end of the mounting frame, the pushing plate is installed at the left end of a group of sliding rods and contacts the eccentric wheel, a group of limit rods are hinged on both sides of the sliding seat, and a group of limit blocks are installed at the upper end of a group of limit rods.

[0010] Furthermore, a group of staggered connecting rods are connected to the rear end of a group of limit rods, the group of staggered connecting rods are connected through a transmission rod, and a group of limit blocks are connected at the rear end through a tension spring.

[0011] Furthermore, a group of limiting grooves corresponding to the limiting blocks are formed on both sides of the bottom of the sliding seat.

[0012] Furthermore, a pulley 1 is installed on the rotating end of the driving motor, a pulley 2 is installed on the rear end of the transmission shaft, and a transmission belt is sleeved on the pulley 1 and the pulley 2.

[0013] Furthermore, a buffer spring is respectively mounted on the outer surface of the bottom of a group of fixed round rods, and the upper end of the buffer spring is connected to the second sliding seat.

[0014] The utility model provides a multi-station cold forging device for nut production, which has the following beneficial effects: a cold forging mechanism is arranged above a bottom die, and a driving motor is used to drive the top dies at the bottom of a sliding seat one and a sliding seat two after being decelerated by a transmission belt, so as to realize cold forging of the nuts; when loading and unloading, a set of limit rods is separated from the sliding seat one by a clutch mechanism, so that power is cut off, thereby effectively improving the safety of loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a multi-station cold heading device for nut production described in the utility model.

[0016] Figure 2 This is a transmission schematic diagram of the drive motor described in the utility model.

[0017] Figure 3 It is a schematic diagram of the mounting frame of the utility model.

[0018] Figure 4 It is a rear view of a multi-station cold heading device for nut production described in the utility model.

[0019] In the figure: 1. base; 2. bottom mold; 3. fixed round rod; 4. mounting plate; 5. driving motor; 6. transmission shaft; 7. connecting rod 1; 8. connecting rod 2; 9. sliding seat 1; 10. sliding seat 2; 11. top mold; 12. mounting frame; 13. rectangular groove; 14. eccentric wheel; 15. rotating handle; 16. sliding rod; 17. pushing plate; 18. limiting rod; 19. limiting block; 20. connecting rod; 21. transmission rod; 22. tension spring; 23. limiting groove; 24. pulley 1; 25. pulley 2; 26. transmission belt; 27. buffer spring. DETAILED DESCRIPTION

[0020] The utility model is described in detail below in conjunction with the accompanying drawings. Figure 1-4 As shown: A multi-station cold heading device for nut production, comprising a base 1 and a bottom die 2 installed at the center of the base 1, a cold heading mechanism is provided above the bottom die 2, and a clutch mechanism is provided on the right side of the base 1; the cold heading mechanism comprises a group of fixed round rods 3, a mounting plate 4, a drive motor 5, a transmission shaft 6, a connecting rod 1 7, a connecting rod 2 8, a sliding seat 1 9, a sliding seat 2 10 and a top die 11, a group of fixed round rods 3 are installed on the base 1, the mounting plate 4 is installed on the upper end of a group of fixed round rods 3, the drive motor 5 is horizontally installed on the left side of the mounting plate 4, and the The transmission shaft 6 is movably mounted on the mounting plate 4, the connecting rod 1 7 is mounted on the front end of the transmission shaft 6, the connecting rod 2 8 is hinged at the front end of the connecting rod 1 7, the sliding seat 1 9 is movably sleeved on a group of fixed round rods 3, and the upper end is hinged to the connecting rod 2 8, the sliding seat 2 10 is movably sleeved on the lower end of a group of fixed round rods 3, and the top mold 11 is mounted at the bottom of the sliding seat 2 10; the clutch mechanism includes a mounting frame 12, a rectangular groove 13, an eccentric wheel 14, a rotating handle 15, a group of sliding rods 16, a push plate 17, a group of limit rods 18 and a group of limit The positioning block 19, the mounting frame 12 is mounted on the right side of the base 1, the rectangular groove 13 is opened in the mounting frame 12, the eccentric wheel 14 is movably mounted in the rectangular groove 13, the rotating handle 15 is mounted on the front end of the eccentric wheel 14, a group of sliding rods 16 are movably inserted at the upper end of the mounting frame 12, the pushing plate 17 is mounted on the left end of a group of sliding rods 16, and is in contact with the eccentric wheel 14, a group of limiting rods 18 are hinged on both sides of the sliding seat 10, a group of limiting blocks 19 are mounted on the upper end of a group of limiting rods 18; a group of staggered A connecting rod 20, a group of staggered connecting rods 20 are connected by a transmission rod 21, and a group of limit blocks 19 are connected at the rear end by a tensioning spring 22; a group of limit grooves 23 corresponding to the limit blocks 19 are opened on both sides of the bottom of the sliding seat 9; a pulley 1 24 is installed on the rotating end of the driving motor 5, and a pulley 25 is installed at the rear end of the transmission shaft 6, and a transmission belt 26 is installed on the pulley 1 24 and the pulley 2 25; a group of buffer springs 27 are respectively installed on the outer surface of the bottom of the fixed round rod 3, and the upper end of the buffer spring 27 is connected to the sliding seat 2 10.

[0021] Working principle of this embodiment: The electrical equipment used in the device is controlled by an external controller. When in use, the user first places the nut blank to be cold-forged in the bottom mold 2. The bottom mold 2 is equipped with an ejection mechanism, which can automatically eject the nut after cold-forging. This is the prior art;

[0022] During cold heading: a group of fixed round rods 3 are installed on the base 1, the mounting plate 4 is installed on the upper end of a group of fixed round rods 3, the driving motor 5 is horizontally installed on the left side of the mounting plate 4, the transmission shaft 6 is movably installed on the mounting plate 4 through a fastening bearing, the connecting rod 1 7 is installed at the front end of the transmission shaft 6, the connecting rod 2 8 is hinged at the front end of the connecting rod 1 7, the sliding seat 1 9 is movably sleeved on a group of fixed round rods 3, and the upper end is hinged to the connecting rod 2 8, the sliding seat 2 10 is movably sleeved on the lower end of a group of fixed round rods 3, the top mold 11 is installed at the bottom of the sliding seat 2 10, a pulley 1 24 is installed on the rotating end of the driving motor 5, a pulley 2 25 is installed at the rear end of the transmission shaft 6, and a transmission belt 26 is sleeved on the pulley 1 24 and the pulley 2 25, and the outer surface of the bottom of a group of fixed round rods 3 is respectively sleeved with buffer springs 27, and the upper end of the buffer spring 27 is connected to the sliding seat 2 10, such as Figure 1 and Figure 2 As shown, a limit block is installed at the center of a group of fixed round rods 3 to limit the position of the sliding seat 10. A group of limit blocks 19 at the upper end of a group of limit rods 18 are initially located in a group of limit grooves 23. The size of a group of limit grooves 23 is larger than that of a group of limit blocks 19. When working, the driving motor 5 drives the transmission shaft 6 to rotate slowly after being decelerated by the transmission belt 26. The transmission shaft 6 can drive the sliding seat 19 to reciprocate and lift through the front connecting rod 1 7 and the connecting rod 2 8. The sliding seat 19 drives the top die 11 at the bottom of the sliding seat 10 to reciprocate and lift through a group of limit grooves 23, a group of limit blocks 19 and a group of limit rods 18, so as to realize the cold heading of the nut blank.

[0023] When unloading: the mounting frame 12 is mounted on the right side of the base 1, the rectangular groove 13 is opened in the mounting frame 12, the eccentric wheel 14 is movably mounted in the rectangular groove 13 through the bearing, the rotating handle 15 is installed at the front end of the eccentric wheel 14, a group of sliding rods 16 are movably inserted at the upper end of the mounting frame 12, the pushing plate 17 is installed at the left end of a group of sliding rods 16 and contacts the eccentric wheel 14, a group of limiting rods 18 are hinged on both sides of the sliding seat 10, a group of limiting blocks 19 are installed at the upper end of a group of limiting rods 18, a group of staggered connecting rods 20 are connected to the rear end of a group of limiting rods 18, a group of staggered connecting rods 20 are connected by a transmission rod 21, a group of limiting blocks 19 are connected by a tensioning spring 22 at the rear end, and a group of limiting grooves 23 corresponding to the limiting blocks 19 are opened on both sides of the bottom of the sliding seat 19, such as Figure 3 and Figure 4As shown, the user rotates the rotating handle 15 90° counterclockwise, and a group of limit rods 18 can be driven to deflect by pushing the plate 17. At the same time, a group of limit blocks 19 are separated from a group of limit grooves 23. At this time, the tensioning spring 22 is stretched, and a group of staggered connecting rods 20 and transmission rods 21 play a transmission role, thereby realizing power cutting, and the sliding seat 10 is not working, which is convenient for the user to load and unload materials. When the loading is completed, the user rotates the rotating handle 15 90° clockwise, and the pushing plate 17 is reset. Under the tension of the tensioning spring 22, a group of limit blocks 19 can be reinserted into a group of limit grooves 23 to realize power connection. When a group of limit blocks 19 are inserted into a group of limit grooves 23, the user needs to observe the movement position of the sliding seat 19.

[0024] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present utility model. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present utility model and fall within the protection scope of the present utility model.

Claims

1. A multi-station cold heading device for nut production, comprising a base (1) and a bottom die (2) mounted at the center of the base (1), characterized in that: A cold heading mechanism is provided above the bottom die (2), and a clutch mechanism is provided on the right side of the base (1); The cold heading mechanism comprises a group of fixed round rods (3), a mounting plate (4), a driving motor (5), a transmission shaft (6), a connecting rod 1 (7), a connecting rod 2 (8), a sliding seat 1 (9), a sliding seat 2 (10) and a top die (11), wherein the group of fixed round rods (3) are mounted on the base (1), the mounting plate (4) is mounted on the upper end of the group of fixed round rods (3), the driving motor (5) is horizontally mounted on the left side of the mounting plate (4), the transmission shaft (6) is movably mounted on the mounting plate (4), the connecting rod 1 (7) is mounted on the front end of the transmission shaft (6), the connecting rod 2 (8) is hinged to the front end of the connecting rod 1 (7), the sliding seat 1 (9) is movably sleeved on the group of fixed round rods (3), and the upper end is hinged to the connecting rod 2 (8), the sliding seat 2 (10) is movably sleeved on the lower end of the group of fixed round rods (3), and the top die (11) is mounted on the bottom of the sliding seat 2 (10).

2. A multi-station cold heading device for nut production according to claim 1, characterized in that: The clutch mechanism comprises a mounting frame (12), a rectangular groove (13), an eccentric wheel (14), a rotating handle (15), a group of sliding rods (16), a pushing plate (17), a group of limiting rods (18) and a group of limiting blocks (19), wherein the mounting frame (12) is mounted on the right side of the base (1), the rectangular groove (13) is opened in the mounting frame (12), the eccentric wheel (14) is movably mounted in the rectangular groove (13), the rotating handle (15) is mounted at the front end of the eccentric wheel (14), a group of sliding rods (16) is movably inserted at the upper end of the mounting frame (12), the pushing plate (17) is mounted at the left end of the group of sliding rods (16) and contacts the eccentric wheel (14), a group of limiting rods (18) is hinged on both sides of the sliding seat (10), and a group of limiting blocks (19) is mounted on the upper end of the group of limiting rods (18).

3. A multi-station cold heading device for nut production according to claim 2, characterized in that: A group of staggered connecting rods (20) are connected to the rear end of a group of limit rods (18), the group of staggered connecting rods (20) are connected by a transmission rod (21), and a group of limit blocks (19) are connected at the rear end by a tension spring (22).

4. A multi-station cold heading device for nut production according to claim 1, characterized in that: A group of limiting grooves (23) corresponding to the limiting blocks (19) are formed on both sides of the bottom of the sliding seat (9).

5. A multi-station cold heading device for nut production according to claim 1, characterized in that: A pulley 1 (24) is mounted on the rotating end of the driving motor (5), a pulley 2 (25) is mounted on the rear end of the transmission shaft (6), and a transmission belt (26) is sleeved on the pulley 1 (24) and the pulley 2 (25).

6. A multi-station cold heading device for nut production according to claim 1, characterized in that: A group of fixed round rods (3) are respectively provided with buffer springs (27) on their bottom outer surfaces, and the upper ends of the buffer springs (27) are connected to the second sliding seat (10).

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