Multifunctional cold heading die

Abstract

The utility model relates to the technical field of cold heading dies, in particular to a multifunctional cold heading die which comprises a lower die, an upper die, a stamping block and a positioning device, the upper die is arranged above the lower die, the stamping block is arranged at the lower end of the upper die, and the positioning device is arranged in the upper die. The positioning device comprises a positioning hole and a clamping hole, the clamping hole is formed in the side face of the stamping block, the positioning hole is formed in the upper die, and a positioning rod is slidably connected into the positioning hole. According to the cold heading machine, the positioning device is arranged, the stamping block is effectively limited, the effect of limiting the stamping block is achieved, and the problems that when equipment is used and different materials are subjected to cold heading, the stamping block needs to be replaced, however, the stamping block in an upper die is generally installed through a bolt, and the bolt needs to be operated through a tool when used are solved. The working efficiency of operators is low due to the fact that the tools are used too cumbersomely, and the practicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold heading dies, in particular to a multifunctional cold heading die. Background Art

[0002] The cold heading process is one of the new processes of metal pressure processing with little cutting. It is a processing method that utilizes the plastic deformation of metal under the action of external force, and with the help of a mold, redistributes and transfers the metal volume to form the required parts or blanks. The cold heading die is a mold that cuts, preforms, and forms the blank into a cold-formed part on a cold heading machine. The cold heading process is most suitable for the production of standard fasteners such as bolts, screws, nuts, rivets, and pins. Therefore, a multifunctional cold heading die is used to facilitate user operation.

[0003] Prior art such as the utility model with publication number CN219169513U discloses a mold up and down adjustment device for a multi-station cold heading machine, which adopts an up and down adjustment fixing plate, a first nut, a first screw, an adjustment pressure plate, a second nut, a second screw, a die seat, a clamping screw, and an adjusting screw; the mold is installed in the second through hole, and a screw is screwed into and passed through the screw hole on the die seat to tighten the mold; the clamping screw is screwed into the screw hole of the up and down adjustment fixing plate from the top and then penetrated to tighten with the upper end face of the adjustment pressure plate; the adjusting screw is inserted into the through hole of the up and down adjustment fixing plate from the top and then penetrated to be threadedly connected with the screw hole on the upper end of the adjustment pressure plate; the utility model equipment solves the problem that the nut space below the existing equipment is small and the operation is difficult when adjusting the mold; because the multi-station cold heading machine manufactures products by extruding materials through the mold, the mold is subjected to forces in all directions during this process, and the stud bolts are threadedly connected with the adjustment pressure plate, so after the machine has been running for a long time, the stud bolts will become loose.

[0004] In daily work, when stamping different materials, the stamping blocks need to be replaced. When cold heading different materials, the stamping blocks need to be replaced. However, the stamping blocks in the upper mold are generally installed with bolts. The use of bolts requires tools to operate. The use of tools is too cumbersome, resulting in low work efficiency of operators. Utility Model Content

[0005] The utility model aims to solve the shortcoming in the prior art that it is difficult to quickly replace the punching block, and proposes a multifunctional cold heading die.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multifunctional cold heading die, comprising a lower die, an upper die, a punching block and a positioning device, an upper die is arranged above the lower die, a punching block is arranged at the lower end of the upper die, the positioning device is arranged inside the upper die, the positioning device comprises a positioning hole and a clamping hole, the clamping hole is opened on the side of the punching block, the positioning hole is opened inside the upper die, a positioning rod is slidably connected to the inside of the positioning hole, one end of the positioning rod is clamped with the inside of the clamping hole, one end of the positioning rod is fixedly connected to a connecting plate, and a sliding hole is opened on the side of the upper die.

[0007] Furthermore, a sliding rod is fixedly connected to the surface of the connecting plate, and the sliding rod is slidably connected to the inside of the sliding hole. By setting the sliding rod, the connection of the connecting plate can be limited, which reduces the possibility of shaking of the connecting plate when the device is in use, making it difficult for the device to accurately move the positioning rod with the connecting plate.

[0008] Furthermore, one end of the slide bar is fixedly connected with a stop block, and a groove is provided on the side of the upper mold, and the stop block is provided to facilitate the movement of the slide bar.

[0009] Furthermore, a first spring is fixedly connected to the surface of the connecting plate, and one end of the first spring away from the connecting plate is fixedly connected to the inside of the groove. The first spring is provided to facilitate applying a restoring elastic force to the connecting plate.

[0010] Furthermore, a lifting device is provided inside the lower mold, and the lifting device includes a movable hole and a sliding column. The movable hole is opened inside the lower mold, and the sliding column is slidably connected to the inside of the movable hole. One end of the sliding column is fixedly connected to a support plate. By setting the sliding column, the support plate can be connected, positioned and moved, thereby reducing the possibility that the support plate is prone to shaking and difficult to move in a limited position when the equipment is in use.

[0011] Furthermore, a butt ring is fixedly connected to the surface of the sliding column, and the butt ring is slidably connected to the inner wall of the moving hole. The butt ring is provided to facilitate the movement of the sliding column.

[0012] Furthermore, a second spring is sleeved and connected to the surface of the sliding column, and two ends of the second spring are fixedly connected to the inside of the moving hole and the surface of the abutment ring respectively. The second spring is provided to facilitate the application of a restoring elastic force to the abutment plate.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, when the equipment is in use, the user places the material to be stamped and cold headed on the lower die, and then starts the equipment, and the upper die drives the stamping block to stamp and cold head the material. When the equipment is in use, the user presses the resisting block, and then the resisting block drives the sliding rod to move when it moves, and when the sliding rod moves, it drives the connecting plate to move, and when the connecting plate moves, it drives the positioning rod to move out of the inside of the card hole, and when the connecting plate moves, it drives the first spring to move and deform to generate elastic force. When the positioning rod is out of the inside of the card hole, the stamping block loses its restraint, and the stamping block is pulled to move out of the inside of the upper die for replacement. By setting the positioning device, the stamping block is effectively limited, which plays a role in limiting the stamping block, reducing the need to replace the stamping block when the equipment is in use and cold heading different materials. However, the stamping block in the upper die is generally installed with bolts, and the use of bolts requires tools to operate. The use of tools is too cumbersome, resulting in low work efficiency of the operator, thereby improving the practicability of the equipment.

[0015] 2. In the utility model, by providing a lifting device, when the equipment is in use, when the user punches the material with the inside of the lower mold, the material pushes the push plate to move, and when the push plate moves, it drives the push ring to move, and when the push ring moves, it drives the second spring to displace and deform to generate elastic force, and then a lifting force is applied to the push plate to lift the material. By providing a lifting device, the material is effectively lifted up, which plays a role in lifting the material out of the lower mold, reducing the situation that when the equipment is in use, when the material is cold-forged on the surface of the lower mold, the material is easy to be inside the mold, and it is difficult to quickly move and coat the film, which makes it difficult to use the equipment quickly and normally, thereby improving the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of a multifunctional cold heading die is proposed for the utility model;

[0017] Figure 2 A side view structural schematic diagram of a multifunctional cold heading die is proposed for the utility model;

[0018] Figure 3 A schematic diagram of the structure of a positioning device for a multifunctional cold heading die is proposed for the utility model;

[0019] Figure 4 The utility model proposes a multifunctional cold heading die Figure 3 Schematic diagram of the structure at A in the middle;

[0020] Figure 5 The utility model provides a schematic structural diagram of a jacking device for a multifunctional cold heading die.

[0021] Legend: 1. Lower mold; 2. Upper mold; 3. Punching block; 4. Positioning device; 41. Clamping hole; 42. Positioning hole; 43. Positioning rod; 44. Connecting plate; 45. Sliding hole; 46. Sliding rod; 47. Butt block; 48. Groove; 49. First spring; 5. Lifting device; 51. Moving hole; 52. Butt plate; 53. Butt ring; 54. Sliding column; 55. Second spring. DETAILED DESCRIPTION

[0022] See also Figure 1-Figure 5 The utility model provides a technical solution: a multifunctional cold heading die, comprising a lower die 1, an upper die 2, a punching block 3 and a positioning device 4, wherein the upper die 2 is arranged above the lower die 1, and the punching block 3 is arranged at the lower end of the upper die 2.

[0023] The specific arrangement and function of the positioning device 4 and the lifting device 5 will be described in detail below.

[0024] In this embodiment: the positioning device 4 is arranged inside the upper mold 2, and the positioning device 4 includes a positioning hole 42 and a clamping hole 41. The clamping hole 41 is opened on the side of the punching block 3, and the positioning hole 42 is opened inside the upper mold 2. The inside of the positioning hole 42 is slidably connected with a positioning rod 43, one end of the positioning rod 43 is clamped with the inside of the clamping hole 41, and one end of the positioning rod 43 is fixedly connected with a connecting plate 44, and a sliding hole 45 is opened on the side of the upper mold 2.

[0025] Specifically, a sliding rod 46 is fixedly connected to the surface of the connecting plate 44 , and the sliding rod 46 is slidably connected to the inside of the sliding hole 45 .

[0026] In this embodiment: by setting the sliding rod 46, the connection limit of the connecting plate 44 can be performed, which reduces the shaking of the connecting plate 44 when the device is in use, making it difficult for the device to accurately move the positioning rod 43 with the connecting plate 44.

[0027] Specifically, one end of the slide rod 46 is fixedly connected to a stop block 47 , and a groove 48 is provided on the side of the upper mold 2 , and the stop block 47 is provided to facilitate the movement of the slide rod 46 .

[0028] Specifically, a first spring 49 is fixedly connected to the surface of the connecting plate 44 , and one end of the first spring 49 away from the connecting plate 44 is fixedly connected to the inside of the groove 48 . The first spring 49 is provided to facilitate applying a restoring elastic force to the connecting plate 44 .

[0029] In this embodiment: a lifting device 5 is provided inside the lower mold 1, and the lifting device 5 includes a movable hole 51 and a slide column 54. The movable hole 51 is opened inside the lower mold 1, and the slide column 54 is slidably connected to the inside of the movable hole 51, and one end of the slide column 54 is fixedly connected to a support plate 52.

[0030] In this embodiment, by providing the sliding column 54, the support plate 52 can be connected and positioned to move, thereby reducing the possibility that the support plate 52 is prone to shaking and difficult to move in a limited position when the device is in use.

[0031] Specifically, a retaining ring 53 is fixedly connected to the surface of the sliding column 54 , and the retaining ring 53 is slidably connected to the inner wall of the moving hole 51 . The retaining ring 53 is provided to facilitate the movement of the sliding column 54 .

[0032] Specifically, a second spring 55 is sleeved and connected to the surface of the sliding column 54 , and two ends of the second spring 55 are fixedly connected to the inside of the moving hole 51 and the surface of the retaining ring 53 respectively. The second spring 55 is provided to facilitate the application of a restoring elastic force to the retaining plate 52 .

[0033] Working principle: When the equipment is used, the user places the material to be stamped and cold headed on the lower die 1, and then starts the equipment. The upper die 2 drives the stamping block 3 to stamp and cold head the material. When the equipment is in use, the user presses the stop block 47, and then the stop block 47 moves and drives the slide bar 46 to move. When the slide bar 46 moves, it drives the connecting plate 44 to move. When the connecting plate 44 moves, it drives the positioning rod 43 to move out of the inside of the clamping hole 41. When the connecting plate 44 moves, it drives the first spring 49 to displace and deform to generate elastic force. When the positioning rod 43 is out of the clamping hole, 41, the punch block 3 loses its restraint, and the punch block 3 is pulled to move out of the upper die 2 for replacement. By setting the positioning device 4, the punch block 3 is effectively limited, which plays a role in limiting the punch block 3 and reduces the need to replace the punch block 3 when the equipment is in use and when cold heading different materials. However, the punch block 3 in the upper die 2 is generally installed with bolts, and the use of bolts requires tools to operate. The use of tools is too cumbersome, resulting in low work efficiency of operators, thereby improving the practicability of the equipment.

[0034] When the equipment is in use, when the user punches the material with the inside of the lower mold 1, the material pushes the push plate 52 to move, and when the push plate 52 moves, it drives the push ring 53 to move. When the push ring 53 moves, it drives the second spring 55 to displace and deform to generate elastic force, and then a lifting force is applied to the push plate 52 to lift the material. By setting up the lifting device 5, the material is effectively lifted up and has the effect of lifting the material out of the lower mold 1. When the equipment is in use, when the material is cold-forged on the surface of the lower mold 1, the material is easily inside the mold and difficult to move quickly to coat, which makes it difficult to use the equipment quickly and normally, thereby improving the practicability of the equipment.

Claims

1. A multifunctional cold heading die, comprising a lower die (1), an upper die (2), a punching block (3) and a positioning device (4), characterized in that: An upper mold (2) is arranged above the lower mold (1), a punching block (3) is arranged at the lower end of the upper mold (2), the positioning device (4) is arranged inside the upper mold (2), the positioning device (4) comprises a positioning hole (42) and a clamping hole (41), the clamping hole (41) is opened on the side of the punching block (3), the positioning hole (42) is opened inside the upper mold (2), the inside of the positioning hole (42) is slidably connected with a positioning rod (43), one end of the positioning rod (43) is clamped with the inside of the clamping hole (41), one end of the positioning rod (43) is fixedly connected with a connecting plate (44), and a sliding hole (45) is opened on the side of the upper mold (2).

2. A multifunctional cold heading die according to claim 1, characterized in that: A sliding rod (46) is fixedly connected to the surface of the connecting plate (44), and the sliding rod (46) is slidably connected to the inside of the sliding hole (45).

3. A multifunctional cold heading die according to claim 2, characterized in that: One end of the slide rod (46) is fixedly connected to a stop block (47), and a groove (48) is provided on the side of the upper mold (2).

4. A multifunctional cold heading die according to claim 3, characterized in that: A first spring (49) is fixedly connected to the surface of the connecting plate (44), and one end of the first spring (49) away from the connecting plate (44) is fixedly connected to the inside of the groove (48).

5. The multifunctional cold heading die according to claim 1, characterized in that: A lifting device (5) is provided inside the lower mold (1), and the lifting device (5) comprises a movable hole (51) and a sliding column (54). The movable hole (51) is opened inside the lower mold (1), and the sliding column (54) is slidably connected to the inside of the movable hole (51), and one end of the sliding column (54) is fixedly connected to a support plate (52).

6. A multifunctional cold heading die according to claim 5, characterized in that: A retaining ring (53) is fixedly connected to the surface of the sliding column (54), and the retaining ring (53) is slidably connected to the inner wall of the moving hole (51).

7. A multifunctional cold heading die according to claim 6, characterized in that: A second spring (55) is sleeved and connected to the surface of the sliding column (54), and two ends of the second spring (55) are fixedly connected to the inside of the moving hole (51) and the surface of the retaining ring (53) respectively.

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