Screw machine cold heading die with anti-shaking structure

Abstract

The utility model relates to the technical field of dies, in particular to a screw machine cold heading die with an anti-shaking structure, which comprises a lower die holder, a middle die holder, an extrusion groove and a top plate, a screwing plate is rotatably connected to the peripheral side surface of the lower die holder, a threaded cylinder is fixed on the upper surface of the screwing plate, and a mounting groove is formed in the top of the lower die holder. A mounting base is arranged at the bottom of the middle die base, the middle die base is sleeved with an adjusting cylinder, a threaded ring plate is fixed to the bottom end of the adjusting cylinder, a plurality of positioning columns are fixed to the top end of the lower die base, the top ends of the positioning columns slidably penetrate through the adjusting cylinder, and the middle position of the middle die base is of a conical structure; by means of threaded connection between the screwing plate and the adjusting cylinder, the adjusting cylinder can be controlled to vertically move downwards, in the downward moving process of the adjusting cylinder, the inner wall of the extrusion groove will extrude the outer wall of the middle die base downwards, the middle die base which shakes can be fixed again, and the structure is convenient to adjust, high in structural strength, not prone to being abraded and long in service life.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a cold heading mold for screw machines with an anti-shaking structure. Background Technology

[0002] Cold heading machines are used to manufacture fasteners such as screws or bolts using the cold heading method. The cold heading die is an important component in the screw production process. Chinese patent CN219292650U discloses a cold heading die for a screw heading machine. Through the combination of various components, when the device becomes loose after long-term use, the middle die seat can be reinforced by rotating the adjusting bolt, which helps to prevent the die seats from loosening. At the same time, rotating the adjusting rod can level the middle die seat, thereby improving its flatness. However, although the flatness adjustment structure described in the above patent document can quickly level the middle die seat and prevent it from shaking, this type of adjustment structure has low structural strength, is easily worn out, has a short service life, and low structural strength. Therefore, we propose a cold heading die for a screw machine with an anti-shaking structure. Summary of the Invention

[0003] The purpose of this invention is to provide a cold heading die for screw machines with an anti-shaking structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A cold heading die for a screw machine with an anti-shake structure includes a lower die base, a middle die base, an extrusion groove, and a top plate. A screwing plate is rotatably connected to the peripheral side of the lower die base. A threaded cylinder is fixed on the upper surface of the screwing plate. An installation groove is opened on the top of the lower die base, and a clearance groove communicating with the installation groove is opened on the bottom of the lower die base. An installation seat is provided at the bottom of the middle die base, and the installation seat is located in the installation groove. An adjusting cylinder is sleeved on the outside of the middle die base. A threaded ring plate is fixed at the bottom end of the adjusting cylinder. The threaded ring plate is located inside the threaded cylinder and is threadedly engaged with the threaded cylinder. Several positioning pins are fixed at the top of the lower die base. The top of the positioning pins slides through the adjusting cylinder. The top plate is located inside the middle die base and is slidably engaged with the middle die base. The middle position of the middle die base has a conical structure.

[0006] Preferably, the bottom of the extrusion groove is a frustum-shaped slot structure, and the inner wall of the frustum-shaped slot structure of the extrusion groove is in close contact with the outer wall of the conical structure on the middle die base.

[0007] Preferably, the inner wall of the mounting groove is provided with a plurality of limiting grooves, and the outer wall of the mounting base is fixed with a plurality of limiting posts, the limiting posts being located inside the limiting grooves.

[0008] Preferably, a top rod is fixed to the lower surface of the top plate, and a bottom plate is fixed to the bottom end of the top rod. The top rod is located in the relief groove and slides with the relief groove.

[0009] Preferably, the adjusting cylinder has several circular grooves, the positioning pin is located in the circular groove and slides with the circular groove, and the mounting plate is fixedly sleeved on the bottom peripheral side of the lower mold base.

[0010] Preferably, a second annular plate is fixed to the peripheral side of the lower mold base, a first annular plate is fixed to the outer side of the second annular plate, a first annular groove is formed in the inner side of the screw plate, and a second annular groove communicating with the first annular groove is formed on the inner side of the screw plate. The first annular plate is rotatably connected to the first annular groove, the second annular plate is rotatably connected to the second annular groove, and a plurality of anti-slip posts are fixed to the peripheral side of the screw plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention uses a threaded connection between a screw plate and an adjusting cylinder to control the vertical downward movement of the adjusting cylinder. During the downward movement of the adjusting cylinder, the inner wall of the extrusion groove will press down on the outer wall of the middle mold base, which can fix the wobbling middle mold base again, making it easy to adjust. Depending on the looseness of the middle mold base, the wobbling can be adjusted by rotating the screw plate. Moreover, this structure has high strength, is not easily worn, and has a long service life. Attached Figure Description

[0013] Figure 1 A schematic diagram of a cold heading die for a screw machine with an anti-shake structure;

[0014] Figure 2 A cross-sectional view of the thread ring plate of a cold heading die for a screw machine with an anti-shake structure;

[0015] Figure 3 A cross-sectional view of the screw-screw plate of a cold heading die for a screw machine with an anti-shake structure;

[0016] Figure 4 A sectional view of the lower die base of a cold heading die for a screw machine with an anti-shake structure;

[0017] Figure 5 A schematic diagram of the die base in a cold heading die for a screw machine with an anti-shake structure;

[0018] Figure 6 This is a schematic diagram of the ejector pin of a cold heading die for a screw machine with an anti-shake structure.

[0019] In the diagram: 1. Lower mold base; 2. Middle mold base; 3. Adjusting cylinder; 4. Threaded ring plate; 5. Threaded cylinder; 6. Twisting plate; 7. Anti-slip post; 8. Mounting plate; 9. Ejector rod; 10. Base plate; 11. Extrusion groove; 12. Circular groove; 13. First annular groove; 14. Second annular groove; 15. Relief groove; 16. First annular plate; 17. Second annular plate; 18. Mounting groove; 19. Positioning post; 20. Limiting groove; 21. Mounting base; 22. Limiting post; 23. Top plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-6 As shown, this utility model provides a technical solution:

[0022] A cold heading die for a screw machine with an anti-shake structure includes a lower die base 1, a middle die base 2, an extrusion groove 11, and a top plate 23. A screwing plate 6 is rotatably connected to the side of the lower die base 1, and a threaded cylinder 5 is fixed to the upper surface of the screwing plate 6. An installation groove 18 is provided at the top of the lower die base 1, and a clearance groove 15 communicating with the installation groove 18 is provided at the bottom of the lower die base 1. An installation seat 21 is provided at the bottom of the middle die base 2, located within the installation groove 18. An adjusting cylinder 3 is sleeved on the outer side of the middle die base 2, and a threaded ring plate 4 is fixed to the bottom end of the adjusting cylinder 3. The threaded ring plate 4 is located within the threaded cylinder 5 and threadedly engages with the threaded cylinder 5. Several positioning pins 19 are fixed to the top of the lower die base 1, and the top ends of the positioning pins 19 slide through the adjusting cylinder 3. A push rod 9 is fixed to the lower surface of the top plate 23, and a base plate 1 is fixed to the bottom end of the push rod 9. 0. The push rod 9 is located in the relief groove 15 and slides with the relief groove 15. The top plate 23 is located in the middle mold base 2 and slides with the middle mold base 2. The middle position of the middle mold base 2 is a conical structure. The bottom of the extrusion groove 11 is a frustum-shaped slot structure. The inner wall of the frustum-shaped slot structure of the extrusion groove 11 is in close contact with the outer wall of the conical structure on the middle mold base 2. Through the threaded connection between the screw plate 6 and the adjusting cylinder 3, the adjusting cylinder 3 can be controlled to move vertically downward. During the downward movement of the adjusting cylinder 3, the inner wall of the extrusion groove 11 will press down on the outer wall of the middle mold base 2, which can fix the middle mold base 2 that is shaking again, making it easy to adjust. Depending on the looseness of the middle mold base 2, the shaking can be adjusted by rotating the screw plate 6. Moreover, this structure has high strength, is not easily worn, and has a long service life.

[0023] As a preferred embodiment of this example, Figure 1 ,2 As shown in Figures 4 and 5, the adjusting cylinder 3 has several circular grooves 12. The positioning pin 19 is located in the circular groove 12 and slides with the circular groove 12. The mounting plate 8 is fixedly sleeved on the bottom peripheral side of the lower mold base 1. Several limiting grooves 20 are provided on the inner side wall of the mounting groove 18. Several limiting pins 22 are fixed on the outer side wall of the mounting base 21. The limiting pins 22 are located inside the limiting grooves 20. The cooperation between the limiting pins 22 and the limiting grooves 20 can effectively prevent the mounting base 21 from rotating in the mounting groove 18. Through the sliding cooperation between the positioning pin 19 and the circular groove 12, it can be ensured that the adjusting cylinder 3 can move vertically up and down.

[0024] As a preferred embodiment of this example, Figure 3 and 4 As shown, a second annular plate 17 is fixed to the side of the lower mold base 1, and a first annular plate 16 is fixed to the outside of the second annular plate 17. A first annular groove 13 is opened in the inside of the rotating plate 6, and a second annular groove 14 connected to the first annular groove 13 is opened on the inside of the rotating plate 6. The first annular plate 16 is rotatably connected to the first annular groove 13, and the second annular plate 17 is rotatably connected to the second annular groove 14. Several anti-slip posts 7 are fixed to the side of the rotating plate 6. Through the sliding cooperation between the first annular plate 16 and the second annular plate 17 and the first annular groove 13 and the second annular groove 14 respectively, the rotating plate 6 can rotate stably. The anti-slip posts 7 facilitate the rotation of the rotating plate 6.

[0025] Working principle:

[0026] First, assemble the mounting base 21 at the bottom of the middle mold base 2 into the mounting groove 18, so that the limiting post 22 is located in the limiting groove 20. Then, assemble the top plate 23 inside the middle mold base 2. The bottom end of the push rod 9 passes through the relief groove 15 and is fixed to the base plate 10. Then, install and fix the adjusting cylinder 3, so that the positioning post 19 slides in the circular groove 12. At this time, the threaded ring plate 4 is threaded in the inner side of the threaded cylinder 5. Tighten the anti-slip post 7 to make the adjusting cylinder 3 move vertically downward. During the downward movement of the adjusting cylinder 3, the inner wall of the extrusion groove 11 will press down on the outer wall of the middle mold base 2, thereby firmly fixing the middle mold base 2 and preventing it from shaking. When the middle mold base 2 shakes again, tighten the tightening plate 6 again to make the adjusting cylinder 3 move down to press and fix the middle mold base 2, so that it is fixed again.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A screw machine cold heading die with an anti-shaking structure, characterized in that: Including lower die seat (1), middle die seat (2), extrusion groove (11) and top plate (23), the lower die seat (1) circumferential surface is rotatably connected with the screw plate (6), the screw plate (6) upper surface is fixed with the threaded cylinder (5), the lower die seat (1) top is provided with installation groove (18), the lower die seat (1) bottom is provided with the accommodation slot (15) being communicated with installation groove (18), the middle die seat (2) bottom is provided with the mounting seat (21), the mounting seat (21) is located in installation groove (18), the middle die seat (2) outside is sleeved with the adjusting cylinder (3), the adjusting cylinder (3) bottom end is fixed with the threaded ring plate (4), the threaded ring plate (4) is located in threaded cylinder (5) and is threadedly connected with threaded cylinder (5), the lower die seat (1) top end is fixed with several positioning columns (19), the positioning column (19) top end is slidably penetrated through the adjusting cylinder (3), the top plate (23) is located in the middle die seat (2) and is slidably connected with the middle die seat (2), the middle die seat (2) middle position is conical structure.

2. The screw machine cold heading die with an anti-shaking structure according to claim 1, characterized in that: The bottom of the extrusion groove (11) is a circular truncated cone structure, and the inner wall of the circular truncated cone structure of the extrusion groove (11) is in close contact with the outer wall of the upper conical structure of the middle die seat (2).

3. The screw machine cold heading die with anti-shaking structure according to claim 2, characterized in that: The inner side wall of the installation groove (18) is provided with a plurality of limiting grooves (20), and the outer side wall of the mounting seat (21) is fixed with a plurality of limiting columns (22), and the limiting columns (22) are located in the inner side of the limiting groove (20).

4. The screw machine cold heading die with anti-shaking structure according to claim 1, characterized in that: The bottom plate (10) is fixed to the bottom end of the top rod (9), and the top rod (9) is located in the accommodation slot (15) and is slidably connected with the accommodation slot (15).

5. The screw machine cold heading die with anti-shaking structure according to claim 1, characterized in that: A plurality of circular grooves (12) are formed in the adjusting cylinder (3), the positioning column (19) is located in the circular groove (12) and is slidably connected with the circular groove (12), and the lower die seat (1) bottom circumferential surface is fixedly sleeved with the mounting plate (8).

6. The screw machine cold heading die with anti-shaking structure according to claim 1, characterized in that: The lower die seat (1) circumferential surface is fixed with the second annular plate (17), the second annular plate (17) outer side is fixed with the first annular plate (16), the screw plate (6) is provided with the first annular groove (13) in, and the screw plate (6) inner side is provided with the second annular groove (14) being communicated with the first annular groove (13), the first annular plate (16) is rotatably connected in the first annular groove (13), the second annular plate (17) is rotatably connected in the second annular groove (14), and the screw plate (6) circumferential surface is fixed with a plurality of anti-skid columns (7).

Images