Multifunctional auxiliary device for cold heading die tool

Abstract

The utility model discloses a multifunctional auxiliary device for a cold heading die tool, which comprises a punching needle, a push pipe is sleeved at one end of the outer surface of the punching needle in a sliding manner, and a push pipe rear pad is arranged at one end of the push pipe; the push rod is arranged on one side of the push tube rear pad; the adjusting block is arranged on the outer surface of the punching needle in a sleeving mode through an adjustable structure, and a guide hole for guiding the push rod is formed in the inner side of the adjusting block in a penetrating mode; the spring is arranged on one side of the adjusting block, and one end of the spring is in contact with the ejector sleeve rear pad; by arranging the adjusting block and the spring, the strength of the push rod can be improved, the problem that the push pipe cannot be reset for material receiving is solved, the device is beneficial to adjusting proper push-out elastic force according to the weight specification of a workpiece, high-speed reset is achieved, dependence on the strength of the push rod can be reduced, the push pipe can be reset at a high speed, and the workpiece can be stably connected into a die cavity through the device.

Description

Technical Field

[0001] The utility model specifically relates to a multifunctional auxiliary device for cold heading die tooling. Background Art

[0002] Cold heading dies are tools used to manufacture metal parts in the shape of threads, hexagonal heads, screws, etc. Cold heading is a metal forming method that places the metal material in a cold state and applies pressure under the action of the die to form the required grooves, threads, etc. under the shape of the die. After processing, the formed part is pushed out by the pusher structure, which usually consists of parts such as ejector pins and pusher tubes.

[0003] The existing cold heading die pushing structure is not suitable for the production of short products because the push tube cannot be automatically reset after sending out the material for subsequent material connection. In addition, it is inconvenient to adjust the pushing elastic force when pushing out molded parts of different weights and shapes. It depends on the strength of the push rod. A weak push rod may break and be damaged, which limits production. The hole position and structure of the workpiece are easily impacted and deformed, affecting the use effect. Therefore, we propose a multifunctional auxiliary device for cold heading die tooling. Utility Model Content

[0004] The utility model aims to provide a multifunctional auxiliary device for cold heading die tooling to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a multifunctional auxiliary device for cold heading die tooling, comprising:

[0006] A punching needle, wherein a push tube is provided on one end of the outer surface of the punching needle, and a push tube rear pad is provided on one end of the push tube;

[0007] A push rod, arranged on one side of the rear pad of the push tube;

[0008] The adjusting block is sleeved on the outer surface of the punching needle through an adjustable structure, and a guide hole for guiding the push rod is opened through the inner side of the adjusting block;

[0009] The spring is arranged on one side of the adjusting block, and one end of the spring is in contact with the rear pad of the push tube.

[0010] Preferably, a mold core is provided on the outer surface of the push tube, a mold cavity matching the push tube is provided on the inner side of the mold core, a mold sleeve is provided on the outer surface of the mold core, a positioning block is provided at one end of the inner side of the mold sleeve, a positioning groove matching the punching needle is provided on the inner side of the positioning block, and a positioning pad is provided on one side wall of the positioning block.

[0011] Preferably, the adjustable structure comprises a locking bolt and a threaded hole, a threaded hole is provided on the front surface of the adjustment block, and a locking bolt that contacts the punching needle is connected to the inner side of the threaded hole through a threaded portion.

[0012] Preferably, the locking bolts are symmetrically arranged at two locations along the axis of the adjusting block, and the height of the locking bolts is smaller than the depth of the threaded hole.

[0013] Preferably, the number of the guide holes is equal to that of the push rod, and the inner diameter of the guide hole matches the outer diameter of the push rod.

[0014] Preferably, the adjustment block is cylindrical.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] By providing an adjustment block and a spring, the push rod does not need to have a greater strength, and the push tube cannot be reset to receive the material. This device is conducive to adjusting the appropriate push-out elastic force according to the specifications of the workpiece, achieving high-speed reset, and can reduce the need to rely on a push rod with greater strength. This device can reset and adjust the push tube, so that the workpiece can be smoothly connected to the mold cavity to avoid damage to the molded part or the mold. At the same time, the adjustment block and the push rod cooperate with each other through the guide hole to facilitate maintaining the horizontal movement of the push rod and reduce the damage to the mold caused by the displacement of the push rod. By adding this device, it is also convenient to improve the strength of the mold and extend the service life of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the push tube of the utility model;

[0019] Figure 3 It is a schematic diagram of the spring structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the regulating block of the utility model.

[0021] In the figure: 1. mold sleeve; 2. mold core; 3. push tube; 4. punch needle; 5. push rod; 6. positioning block; 7. push tube rear pad; 8. adjustment block; 81. locking bolt; 82. guide hole; 9. spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 The utility model provides a technical solution: a multifunctional auxiliary device for cold heading die tooling, comprising:

[0024] A punching needle 4, a push tube 3 is slidably sleeved on one end of the outer surface of the punching needle 4, and a push tube rear pad 7 is provided at one end of the push tube 3;

[0025] A push rod 5 is arranged on one side of a push tube rear pad 7;

[0026] The adjusting block 8 is sleeved on the outer surface of the punching needle 4 through an adjustable structure, so as to adjust the position of the other end of the spring 9. A guide hole 82 for guiding the push rod 5 is provided through the inner side of the adjusting block 8, so as to guide the push rod 5 and enable the push rod 5 to move horizontally better.

[0027] The spring 9 is arranged on one side of the adjustment block 8, and one end of the spring 9 contacts the push tube rear pad 7, so as to provide elastic support, reduce the reliance on the push rod 5 to generate thrust, and avoid the need to rely on the push rod 5 with greater strength.

[0028] In this embodiment, preferably, a mold core 2 is provided on the outer surface of the push tube 3, a mold cavity matching the push tube 3 is provided on the inner side of the mold core 2, a mold sleeve 1 is provided on the outer surface of the mold core 2, a positioning block 6 is provided at one end of the inner side of the mold sleeve 1, a positioning groove matching the punching needle 4 is provided on the inner side of the positioning block 6, and a positioning pad is provided on one side wall of the positioning block 6.

[0029] In this embodiment, preferably, the adjustable structure includes a locking bolt 81 and a threaded hole. A threaded hole is provided on the front surface of the adjustment block 8. The inner side of the threaded hole is connected to a locking bolt 81 that contacts the punch pin 4 through a threaded portion, so as to facilitate the movable adjustment of the position of the adjustment block 8.

[0030] In this embodiment, preferably, the locking bolts 81 are symmetrically arranged at two locations along the axis of the adjusting block 8 to facilitate better connection and fixation of the adjusting block 8 and the punching needle 4, and the height of the locking bolts 81 is less than the depth of the threaded hole.

[0031] In this embodiment, preferably, the number of the guide holes 82 is equal to that of the push rods 5 , and the inner diameter of the guide hole 82 matches the outer diameter of the push rods 5 , so as to better guide the multiple push rods 5 .

[0032] In this embodiment, preferably, the adjusting block 8 is cylindrical, so as to reduce the impact on the existing cold heading die during installation.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional auxiliary device for cold heading die tooling, It is characterized in that include: A punching needle (4), wherein a push tube (3) is provided on one end of the outer surface of the punching needle (4) through a sliding sleeve, and a push tube rear pad (7) is provided on one end of the push tube (3); A push rod (5) is arranged on one side of the push tube rear pad (7); An adjusting block (8) is sleeved on the outer surface of the punching needle (4) through an adjustable structure, and a guide hole (82) for guiding the push rod (5) is formed through the inner side of the adjusting block (8); A spring (9) is arranged on one side of the adjusting block (8), and one end of the spring (9) is in contact with the push tube rear pad (7).

2. A multifunctional auxiliary device for cold heading die tooling according to claim 1, Features: The outer surface of the push tube (3) is sleeved with a mold core (2), the inner side of the mold core (2) is provided with a mold cavity matching with the push tube (3), the outer surface of the mold core (2) is sleeved with a mold sleeve (1), one end of the inner side of the mold sleeve (1) is provided with a positioning block (6), the inner side of the positioning block (6) is provided with a positioning groove matching with the punching needle (4), and a positioning pad is provided on one side wall of the positioning block (6).

3. A multifunctional auxiliary device for cold heading die tooling according to claim 1, Features: The adjustable structure comprises a locking bolt (81) and a threaded hole. The front surface of the adjustment block (8) is provided with a threaded hole. The inner side of the threaded hole is connected to a locking bolt (81) that contacts the punching needle (4) through a threaded portion.

4. A multifunctional auxiliary device for cold heading die tooling according to claim 3, Features: The locking bolts (81) are symmetrically arranged at two locations along the axis of the adjustment block (8), and the height of the locking bolts (81) is less than the depth of the threaded hole.

5. A multifunctional auxiliary device for cold heading die tooling according to claim 1, Features: The number of the guide holes (82) is equal to that of the push rod (5), and the inner diameter of the guide hole (82) matches the outer diameter of the push rod (5).

6. A multifunctional auxiliary device for cold heading die tooling according to claim 1, Features: The regulating block (8) is cylindrical.

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