CN105344829A - Conveniently replaced punch - Google Patents
Conveniently replaced punch Download PDFInfo
- Publication number
- CN105344829A CN105344829A CN201510858518.3A CN201510858518A CN105344829A CN 105344829 A CN105344829 A CN 105344829A CN 201510858518 A CN201510858518 A CN 201510858518A CN 105344829 A CN105344829 A CN 105344829A
- Authority
- CN
- China
- Prior art keywords
- staking punch
- base
- drift
- punch body
- punching head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Abstract
The invention relates to a punch which is convenient to replace and comprises a base and a punching head which are connected together, wherein the base takes the shape of a shaft with two steps; the upper diameter of the base is larger than the lower diameter of the base; threads are formed on the outer surface at the lower part of the base; the punching head comprises a punching head body and an alloy coating covering the outer surface of the punching head body; the colors of the alloy coating and the punching head body are different; threaded blind holes with upward openings are formed in the punching head body, and matched with the threads formed at the lower part of the base, so that the punching head can be mounted on the base; and grooves are uniformly formed in the outer surface of the punching head body, and filled with the alloy coating, so that the adhesive force of the alloy coating can be enhanced. The punch provided by the invention can be quickly replaced, the service life is relatively long, and the abrasion state of the punch can be intuitively observed.
Description
Technical field
The present invention relates to the stamping tool used in clutch process, be specifically related to a kind of drift being convenient to change.
Background technology
Punch forming is a kind of common machining process, and its depended on pressure machine and mould apply external force to section bars such as sheet material, band, tubing, makes it to produce plastic deformation, thus obtains the workpiece of required form and size.Along with the development of moulding process, mould industry also develops rapidly, for the hole-crimped forming technique of pressure vessel head place adapter, the punch structures such as tapered punch, spherical drift, cylindrical punch are had in mould, different structure form drift forming effect is different, and much technique needs the drift successively punching press of different structure form; Just there is the problem that plunger chip die is changed in this, current stamping parts manufactory often completes a hole flanging all will first use original mould punching press, pulls down original mould afterwards, change follow-up mould and proceed punching press from stamping machine; Carry out next time hole flanging time again follow-up mould is unloaded, load onto original mould, constantly repeat, operation is loaded down with trivial details; How to reduce die change frequency, improve die change efficiency, affect very large on punch forming quality and production efficiency.Easily there are wearing and tearing in drift simultaneously, product quality can be had a strong impact on when wearing and tearing appear in drift, when in prior art, wearing and tearing appears in drift, staff often cannot be known in time, cause producing a large amount of underproof product, need whole drift to change when wearing and tearing appear in drift, cost is very high simultaneously.
Summary of the invention
The object of the invention is to propose a kind of drift being convenient to change, the staking punch on this drift can not only realize quick-replaceable, and has longer service life, can observe the abrasion condition of staking punch intuitively.
A kind of drift being convenient to change of the present invention, comprise the base and staking punch that link together, described base is second order step shaft-like, and the diameter on the top of described base is greater than the diameter of the bottom of described base, and the outer surface of the bottom of described base is provided with screw thread; Described staking punch comprises staking punch body and covers the alloy coat of outer surface of described staking punch body, and the color of described alloy coat is different from the color of described staking punch body; Described staking punch body is provided with opening up tapped blind hole, and described tapped blind hole coordinates with the lower thread of described base, to be arranged on described base by described staking punch; The outer surface of described staking punch body is uniformly distributed fluted, described alloy coat is filled in described groove, to strengthen the adhesive force of alloy coat.
Further, described staking punch is cylindrical, and the external diameter of described staking punch equals the external diameter on the top of described base, and the degree of depth of described tapped blind hole is identical with the length of the bottom of described base.
Further, gap is not had between the bottom of described tapped blind hole and described base.
Further, described alloy coat is TiN coating.
Further, described groove comprises the helicla flute be evenly distributed on described staking punch body sidewall and the straight trough be evenly distributed on described staking punch body lower surface.
Structure of the present invention is simple, easy to use, design and manufaction cost is low, fast changeable staking punch, can remarkable improving production efficiency, the alloy coat portion that staking punch body covers not only increases the hardness on the surface of staking punch, extends the service life of staking punch, simultaneously because the color of alloy coat is different from the color of staking punch body, so when alloy coat is worn through, staff can observe easily and judge, to change drift in time, ensures the quality of product; The outer surface of staking punch body is uniformly distributed fluted, groove can strengthen the adhesive force of alloy coat, extends the service life of staking punch body further.
Accompanying drawing explanation
Fig. 1 is axonometric drawing of the present invention;
Fig. 2 is sectional view of the present invention;
Fig. 3 is the structural representation of staking punch body.
In figure: 1-base; 2-staking punch; 3-staking punch body; 4-tapped blind hole; 5-periphery; 6-conical surface; 7-helicla flute; 8-alloy coat; 9-lower surface; 10-straight trough.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
A kind of drift being convenient to change as depicted in figs. 1 and 2, comprise the base 1 and staking punch 2 that link together, base 1 is in second order step shaft-like, and the diameter on the top of base 1 is greater than the diameter of the bottom of base 1, and the outer surface of the bottom of base 1 is provided with screw thread; Staking punch 2 comprises staking punch body 3 and covers the alloy coat 8 of outer surface of staking punch body 3, and the color of alloy coat 8 is different from the color of staking punch body 3; As shown in Figure 3, staking punch body 3 is provided with opening up tapped blind hole 4, and tapped blind hole 4 coordinates with the lower thread of base 1, to be arranged on base 1 by staking punch 2; The outer surface of staking punch body 3 is uniformly distributed fluted, alloy coat 8 is filled in groove, to strengthen the adhesive force of alloy coat 8.Groove comprises the helicla flute 7 be evenly distributed on staking punch body 3 sidewall and the straight trough 10 be evenly distributed on the lower surface 9 of staking punch body 3.Concrete, the periphery 5 that the sidewall of staking punch body 3 comprises staking punch body 3 and the conical surface 6 be arranged between periphery 5 and lower surface 9.
Further, staking punch 2 is cylindrical, and the external diameter of staking punch 2 equals the external diameter on the top of base 1, and the degree of depth of tapped blind hole 4 is identical with the length of the bottom of base 1.
Further, between the bottom of tapped blind hole 4 and base 1, there is no gap, be out of shape to avoid staking punch 2.
Further, alloy coat 8 is TiN coating, and the Vickers hardness of TiN coating is at about 2300HV, and maximum operation (service) temperature, at 500 DEG C, is a kind of high performance-price ratio coating, and TiN coating is in golden yellow, the convenient abrasion condition observed and judge coating.
Claims (5)
1. be convenient to the drift of replacing for one kind, comprise the base (1) and staking punch (2) that link together, it is characterized in that: described base (1) is in second order step shaft-like, the diameter on the top of described base (1) is greater than the diameter of the bottom of described base (1), and the outer surface of the bottom of described base (1) is provided with screw thread; Described staking punch (2) comprises staking punch body (3) and covers the alloy coat (8) of outer surface of described staking punch body (3), and the color of described alloy coat (8) is different from the color of described staking punch body (3); Described staking punch body (3) is provided with opening up tapped blind hole (4), and described tapped blind hole (4) coordinates with the lower thread of described base (1), to be arranged on described base (1) by described staking punch (2); The outer surface of described staking punch body (3) is uniformly distributed fluted, described alloy coat (8) is filled in described groove, to strengthen the adhesive force of alloy coat (8).
2. the drift being convenient to change according to claim 1, it is characterized in that: described staking punch (2) is cylindrical, the external diameter of described staking punch (2) equals the external diameter on the top of described base (1), and the degree of depth of described tapped blind hole (4) is identical with the length of the bottom of described base (1).
3. the drift being convenient to change according to claim 1, is characterized in that: do not have gap between the bottom of described tapped blind hole (4) and described base (1).
4. the drift being convenient to change according to claim 1, is characterized in that: described alloy coat (8) is TiN coating.
5. the drift being convenient to change according to claim 1, is characterized in that: described groove comprises the helicla flute (7) be evenly distributed on described staking punch body (3) sidewall and the straight trough (10) be evenly distributed on described staking punch body (3) lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510858518.3A CN105344829A (en) | 2015-12-01 | 2015-12-01 | Conveniently replaced punch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510858518.3A CN105344829A (en) | 2015-12-01 | 2015-12-01 | Conveniently replaced punch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105344829A true CN105344829A (en) | 2016-02-24 |
Family
ID=55320970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510858518.3A Pending CN105344829A (en) | 2015-12-01 | 2015-12-01 | Conveniently replaced punch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105344829A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107755523A (en) * | 2016-08-20 | 2018-03-06 | 无锡明豪汽车轻量化技术应用有限公司 | A kind of inner high voltage drift quick-change mechanism |
| CN107962110A (en) * | 2016-10-19 | 2018-04-27 | 无锡威唐工业技术股份有限公司 | A kind of hole flanging mold of anti-hole flanging cracking |
-
2015
- 2015-12-01 CN CN201510858518.3A patent/CN105344829A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107755523A (en) * | 2016-08-20 | 2018-03-06 | 无锡明豪汽车轻量化技术应用有限公司 | A kind of inner high voltage drift quick-change mechanism |
| CN107962110A (en) * | 2016-10-19 | 2018-04-27 | 无锡威唐工业技术股份有限公司 | A kind of hole flanging mold of anti-hole flanging cracking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |
|
| WD01 | Invention patent application deemed withdrawn after publication |