Puncher structure capable of rapidly replacing cutting die balls

Abstract

The utility model discloses a puncher cutting die ball quick replacement structure which comprises a tool apron and a cutting die, insertion holes are symmetrically formed in one end of the cutting die, steel balls are symmetrically and movably connected to the surface of the tool apron in a sleeved mode, a spring and a movable clamping sleeve are arranged on the surface of the tool apron respectively, and a baffle ring integrally extends from an inner cavity of the movable clamping sleeve. The insertion hole extends into the inner cavity of the tool apron and is connected with the steel ball in a clamped mode. According to the structure for rapidly replacing the cutting die ball of the puncher, the end opening of the movable clamping sleeve can be located on the corner of the steel ball by pushing the movable clamping sleeve and extruding the spring, the cutting die is pulled to enable the insertion hole to extrude the steel ball to move outwards, the steel ball is extruded out of the insertion hole, and therefore the cutting die can be pulled out of the inner cavity of the cutter holder, and then a new cutting die is inserted; and the movable clamping sleeve is driven to automatically reset under the elastic force of the spring, so that the inner wall of the movable clamping sleeve extrudes the steel ball and abuts against the steel ball, the steel ball is clamped in the insertion hole, and the cutting die is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of punching technology, specifically to a quick-change die ball structure for punching. Background Technology

[0002] A punch is a mechanical tool or device that quickly punches holes in materials (such as metal, plastic, leather, paper, etc.) through impact or pressure. Its core feature is the use of a punch (die) and a base (lower die) to instantly penetrate the material and form regular holes through the action of external force.

[0003] Currently, the die on the punch will wear out after long-term use, and it needs to be replaced when punching holes of different sizes and positions. However, traditional die may be fixed with bolts, pins or pressure plates, which requires special tools to disassemble, which is a lot of steps and time-consuming. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a quick-change die-changing ball bearing structure for punching machines, which solves the problem that traditional dies may be fixed with bolts, pins, or pressure plates, requiring special tools for disassembly, which involves many steps and is time-consuming.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a quick-change die ball structure for a punch, comprising a die holder and a die, wherein one end of the die is symmetrically provided with an insertion hole, and steel balls are symmetrically and movably sleeved on the surface of the die holder.

[0006] The surface of the tool holder is provided with a spring and a movable retaining sleeve, and the inner cavity of the movable retaining sleeve extends integrally with a retaining ring. The insertion hole extends into the inner cavity of the tool holder and engages with the steel ball.

[0007] Preferably, the inner cavity of the retaining ring fits against the surface of the tool holder, the springs abut against the retaining ring and the tool holder respectively, and the springs are located in the inner cavity of the movable sleeve.

[0008] Preferably, the steel ball abuts against the inner wall of the movable sleeve.

[0009] Preferably, the surface of the die is provided with a limit block.

[0010] Preferably, the limiting block abuts against the port of the tool holder.

[0011] This invention provides a quick-change die-changing ball bearing structure for a punch. Compared with the prior art, it has the following advantages:

[0012] This punching tool features a quick-change die-changing ball bearing structure. By pushing the movable sleeve to the left side of the die holder and compressing the spring, the port of the movable sleeve is positioned on the edge of the steel ball. Then, pulling the die causes the insertion hole to squeeze the steel ball outward slightly, allowing the die to be pulled out of the die holder's inner cavity. When a new die is inserted, the spring force causes the movable sleeve to automatically reset, squeezing the steel ball from its inner wall and holding it in place in the insertion hole. This facilitates die replacement and solves the problem of traditional dies being fixed with bolts, pins, or pressure plates, requiring special tools for disassembly, and involving multiple steps and time. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram showing the structural breakdown of this utility model;

[0015] Figure 3 This is a schematic diagram of the reverse disassembly of the structure of this utility model;

[0016] Figure 4 This is a partial cross-sectional view of the structure of this utility model.

[0017] In the diagram: 1. Tool holder; 2. Die mold; 21. Insertion hole; 3. Movable sleeve; 31. Retaining ring; 4. Spring; 5. Steel ball. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1 - Figure 4This utility model provides a technical solution: a quick-change die ball bearing structure for a punch, including a die holder 1 and a die 2. One end of the die 2 has symmetrically symmetrically symmetrically symmetrically fitted steel balls 5. The surface of the die holder 1 is respectively provided with springs 4 and movable retaining sleeves 3, and the inner cavity of the movable retaining sleeve 3 has an integrally extended retaining ring 31. The insertion holes 21 extend into the inner cavity of the die holder 1 and engage with the steel balls 5. The inner cavity of the retaining ring 31 fits against the surface of the die holder 1. The springs 4... The ball 5 is pressed against the retaining ring 31 and the tool holder 1, and the spring 4 is located in the inner cavity of the movable sleeve 3. The ball 5 is in contact with the inner wall of the movable sleeve 3. When the movable sleeve 3 slides against the tool holder 1, its port will be located at the edge of the ball 5, pressing against the ball 5 a little, but not completely, so that most of the area of ​​the ball 5 is exposed to the outside. In this way, when the die 2 is pulled out, the insertion hole 21 will squeeze the ball 5 to move outward a little, but ensure that the ball 5 will not fall off the surface of the tool holder 1.

[0020] The surface of the die 2 is provided with a limiting block, which abuts against the port of the die holder 1. The limiting block is used to limit the insertion of the die 2 into the inner cavity of the die holder 1.

[0021] When changing the die 2, first push the movable sleeve 3 to the left side of the die holder 1. At the same time, the retaining ring 31 slides on the surface of the die holder 1 and squeezes the spring 4, causing the spring 4 to retract. This causes the movable sleeve 3 to press against the die holder 1. Meanwhile, the port of the movable sleeve 3 will be located on the corner of the steel ball 5, pressing against the steel ball 5 at a point, allowing the rest of the steel ball 5 to protrude. Then, pull the die 2 to push the insertion hole 21 to move the steel ball 5 outward a little, so that the steel ball 5 is squeezed out from the insertion hole 21. In this way, the die 2 can be pulled out from the inner cavity of the die holder 1.

[0022] When inserting a new die 2, follow the steps above to insert the new die 2 into the inner cavity of the die holder 1 and squeeze the steel ball 5 so that the die 2 is pressed against the port of the die holder 1. At this time, the steel ball 5 will enter the insertion hole 21. Then release the movable sleeve 3. Under the elastic force of the spring 4, the movable sleeve 3 will automatically reset, so that the inner wall of the movable sleeve 3 squeezes the steel ball 5 and holds the steel ball 5, so that the steel ball 5 is stuck in the insertion hole 21, thus facilitating the replacement of the die 2.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A punch quick-change die ball structure comprising a die holder (1) and a die (2), characterized in that: One end of the cutter die (2) is symmetrically provided with an insertion hole (21), and the surface of the cutter holder (1) is symmetrically movably sleeved with a steel ball (5); The surface of the cutter holder (1) is respectively provided with a spring (4) and a movable clamping sleeve (3), and the inner cavity of the movable clamping sleeve (3) integrally extends a blocking ring (31), the insertion hole (21) extends into the inner cavity of the cutter holder (1), and is mutually clamped with the steel ball (5).

2. A punch quick-change die ball structure according to claim 1, characterized in that: The inner cavity of the blocking ring (31) is attached to the surface of the cutter holder (1), the spring (4) is respectively abutted on the blocking ring (31) and the cutter holder (1), and the spring (4) is located in the inner cavity of the movable clamping sleeve (3).

3. A quick-change die ball structure for a puncher according to claim 1, characterized in that: The steel ball (5) and the inner wall of the movable clamping sleeve (3) are mutually abutted.

4. A quick-change die ball structure for a puncher according to claim 1, characterized in that: The surface of the cutter die (2) is provided with a limiting block.

5. A quick-change die ball structure for a puncher according to claim 4, characterized in that: The limiting block is abutted on the port of the cutter holder (1).

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