CN212944935U - Composite punching die - Google Patents
Composite punching die Download PDFInfo
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- CN212944935U CN212944935U CN202021343098.8U CN202021343098U CN212944935U CN 212944935 U CN212944935 U CN 212944935U CN 202021343098 U CN202021343098 U CN 202021343098U CN 212944935 U CN212944935 U CN 212944935U
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Abstract
The utility model belongs to the technical field of the cut-out press and specifically relates to a can once fix a position and carry out compound cut-out press that effectively punches a hole, its compound cut-out press, its characterized in that: the punching die comprises a punching die and a punching die guide body, wherein the punching die is provided with an axial through hole and is sleeved in the punching die guide body, the tail end of the punching die is a punching end, and a floating gap is formed between the punching end and the inner wall of the punching die guide body to form a floating structure of the punching die; the upper part of the punching die is connected with a demoulding mechanism, the demoulding mechanism is arranged in a rod core main body, and the inner wall of the rod core main body is a guide wall for the operation of the demoulding mechanism. Compound punching die can once fix a position the mould structure of punching simultaneously, the hole site precision obtains powerful assurance, has guaranteed the precision effectively, also guarantees the life-span of mould.
Description
Technical Field
The utility model belongs to the technical field of the cut-out press and specifically relates to a can once fix a position and carry out compound cut-out press that effectively punches a hole.
Background
Aiming at the processing of hole sites on the lower pipe of the automobile rotating shaft, multiple punching processing is carried out through a punching die, and single punching processing is required to be completed through multiple punching on different equipment, and the processing mode has the advantage of long service life of a die; however, the defect is obvious, and the precision is reduced due to the fact that positioning is carried out for multiple times in the machining process, so that the efficiency is reduced, a plurality of fighting devices are used, the number of die sets is large, and the development cost is high.
Therefore, how to design a die capable of performing punching processing by one-time positioning is one of the technical problems to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a compound cut-out press's technical scheme, it includes punching die and die director, wherein:
the punching die is provided with an axial through hole and is sleeved in the punching die guide body, the tail end of the punching die is a punching end, and a floating gap is formed between the punching end and the inner wall of the punching die guide body to form a floating structure of the punching die;
the upper part of the punching die is connected with a demoulding mechanism, the demoulding mechanism is arranged in a rod core main body, and the inner wall of the rod core main body is a guide wall for the operation of the demoulding mechanism.
Further preferred is: the punching die is of a T-shaped structure in axial section, the upper end of the punching die is provided with a positioning table extending towards the outer side of the punching die, and the positioning table is abutted against the top end of the punch die guide body.
Further preferred is: and through holes are respectively formed at the punching end of the punching die and the lower end of the punching die guide body, and the through holes are communicated with each other correspondingly.
Further preferred is: demoulding mechanism includes ejector pin and guide body, an reset spring is established to the cover between ejector pin and the guide body, wherein:
the demoulding rod comprises a guide plate and a rod body which are integrally connected, the side wall of the guide plate is connected with the guide wall of the rod core main body in a sliding manner, and the rod body is vertically connected to the lower side surface of the guide plate and is connected to the axial through hole in a sliding manner;
the guide body is arranged in the rod core main body and provided with a guide hole, and the rod body penetrates through the guide hole and is connected with the axial through hole in a sliding mode.
Further preferred is: the guide body is locked on the die guide body through a screw.
Further preferred is: the rod core main body is a cylindrical body, the inner wall of the rod core main body is the guide wall, and the upper opening end of the rod core main body is covered with a flat plate.
Further preferred is: the flat plate is provided with a yielding hole, and the yielding hole is communicated with the inner cavity of the rod core main body.
Compared with the prior art, the utility model has the advantages of it is following:
the composite punching die of the utility model can position the die structure punched at the same time at one time, the hole site precision is powerfully ensured, the precision is effectively ensured, and the service life of the die is also ensured;
in addition, compound cut-out press select for use SKD11 die steel to make, above-mentioned part has high hardness grindability, hardenability after thermal treatment strong, dimensional stability is good, have advantages such as good toughness and high temperature resistant fatigue shape simultaneously.
Drawings
Fig. 1 is a schematic structural perspective view of the compound punching die in the embodiment of the present invention;
FIG. 2 is a front view of the composite-piercing die of an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along A-A of the structure of FIG. 2;
fig. 4 is a top view of the structure shown in fig. 2.
Detailed Description
Aiming at the processing of hole sites on the lower pipe of the automobile rotating shaft, multiple punching processing is carried out through a punching die, and single punching processing is required to be completed through multiple punching on different equipment, and the processing mode has the advantage of long service life of a die; however, the defect is obvious, and the precision is reduced due to the fact that positioning is carried out for multiple times in the machining process, so that the efficiency is reduced, a plurality of fighting devices are used, the number of die sets is large, and the development cost is high.
The inventor aims at the technical problems, and continuously researches and discovers a technical scheme of a composite punching die through analyzing reasons, wherein the technical scheme comprises a punching die and a die guide body, and the composite punching die comprises:
the punching die is provided with an axial through hole and is sleeved in the punching die guide body, the tail end of the punching die is a punching end, and a floating gap is formed between the punching end and the inner wall of the punching die guide body to form a floating structure of the punching die;
the upper part of the punching die is connected with a demoulding mechanism, the demoulding mechanism is arranged in a rod core main body, and the inner wall of the rod core main body is a guide wall for the operation of the demoulding mechanism.
In the technical scheme, the die structure capable of being positioned at one time and simultaneously punched is explained, the hole site precision is powerfully guaranteed, the precision is effectively guaranteed, the service life of the die is also guaranteed, and therefore the technical problems in the prior art are solved.
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Example (b):
the technical scheme includes that the composite punching die comprises a punching die 1, a punching die guide body 2, a demolding mechanism 3 and a core rod main body 4, wherein the punching die 1, the punching die guide body 2, the demolding mechanism 3 and the core rod main body 4 are made of SKD11 die steel, and the components have the advantages of high hardness and abrasive property, strong hardenability, good dimensional stability, good toughness, high-temperature fatigue resistance and the like after being subjected to heat treatment.
The punching die 1 is a circular cylinder, an axial through hole 11 is formed along the axial direction of the punching die, a T-shaped structure is obtained along the axial section of the punching die, the upper end of the punching die 1 extends to the periphery of the punching die to form a circular boss, the circular boss is a positioning table 12, and the lower end of the punching die 1 is a punching end;
the punching die guide body 2 is a circular sleeve body and is matched with the punching die 1;
the punching die 1 is sleeved in the punch die guide body 2, and the positioning table 12 is abutted to the top end of the punch die guide body 2; a floating gap is formed between the punching end and the inner wall of the punch die guide body 2 to form a floating structure of the punch die, and through holes 5 are respectively formed at the punching end of the punching die 1 and the lower end of the punch die guide body 2 and are communicated with each other correspondingly to the two through holes.
The demoulding mechanism 3 is arranged in a rod core main body 4, and the inner wall of the rod core main body 4 is a guide wall for the operation of the demoulding mechanism 3.
The demolding mechanism 3 includes a demolding rod 31 and a guiding body 32, a return spring 33 is sleeved between the demolding rod 31 and the guiding body 32, wherein:
the demoulding rod 31 comprises a guide plate and a rod body which are integrally connected, the side wall of the guide plate is connected with the guide wall of the rod core main body in a sliding manner, and the rod body is vertically connected to the lower side surface of the guide plate and is connected with the axial through hole 11 in a sliding manner;
the guide body 32 is arranged in the rod core main body 4 and is provided with a guide hole 321, and the rod body passes through the guide hole 321 and is connected with the axial through hole in a sliding manner; the guide body 32 is locked to the die guide body 2 by means of a threaded rod 6.
The rod core main body 4 is a cylindrical body, the inner wall of the rod core main body is the guide wall, an upper opening end cover of the rod core main body is provided with a flat plate 7, the flat plate 7 is provided with a yielding hole 71, and the rod core main body is communicated with an inner cavity of the rod core main body 4 through the yielding hole 71.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make modifications and changes without departing from the spirit and scope of the present invention.
Claims (7)
1. Compound cut-out press, its characterized in that: it includes punching die and die guide body, wherein:
the punching die is provided with an axial through hole and is sleeved in the punching die guide body, the tail end of the punching die is a punching end, and a floating gap is formed between the punching end and the inner wall of the punching die guide body to form a floating structure of the punching die;
the upper part of the punching die is connected with a demoulding mechanism, the demoulding mechanism is arranged in a rod core main body, and the inner wall of the rod core main body is a guide wall for the operation of the demoulding mechanism.
2. The composite-punch die of claim 1, wherein: the punching die is of a T-shaped structure in axial section, the upper end of the punching die is provided with a positioning table extending towards the outer side of the punching die, and the positioning table is abutted against the top end of the punch die guide body.
3. The composite-punch die of claim 2, wherein: and through holes are respectively formed at the punching end of the punching die and the lower end of the punching die guide body, and the through holes are communicated with each other correspondingly.
4. The composite-punch die of claim 1, wherein: demoulding mechanism includes ejector pin and guide body, an reset spring is established to the cover between ejector pin and the guide body, wherein:
the demoulding rod comprises a guide plate and a rod body which are integrally connected, the side wall of the guide plate is connected with the guide wall of the rod core main body in a sliding manner, and the rod body is vertically connected to the lower side surface of the guide plate and is connected to the axial through hole in a sliding manner;
the guide body is arranged in the rod core main body and provided with a guide hole, and the rod body penetrates through the guide hole and is connected with the axial through hole in a sliding mode.
5. The composite-punch die of claim 4, wherein: the guide body is locked on the die guide body through a screw.
6. The composite-punch die of claim 4, wherein: the rod core main body is a cylindrical body, the inner wall of the rod core main body is the guide wall, and the upper opening end of the rod core main body is covered with a flat plate.
7. The composite-punch die of claim 6, wherein: the flat plate is provided with a yielding hole, and the yielding hole is communicated with the inner cavity of the rod core main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021343098.8U CN212944935U (en) | 2020-07-10 | 2020-07-10 | Composite punching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021343098.8U CN212944935U (en) | 2020-07-10 | 2020-07-10 | Composite punching die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212944935U true CN212944935U (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021343098.8U Active CN212944935U (en) | 2020-07-10 | 2020-07-10 | Composite punching die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212944935U (en) |
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2020
- 2020-07-10 CN CN202021343098.8U patent/CN212944935U/en active Active
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