CN1124183C - Technology for processing non-circular hole on thick metal plate - Google Patents
Technology for processing non-circular hole on thick metal plate Download PDFInfo
- Publication number
- CN1124183C CN1124183C CN 01114718 CN01114718A CN1124183C CN 1124183 C CN1124183 C CN 1124183C CN 01114718 CN01114718 CN 01114718 CN 01114718 A CN01114718 A CN 01114718A CN 1124183 C CN1124183 C CN 1124183C
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- China
- Prior art keywords
- hole
- thick metal
- metal plate
- punching press
- holes
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- 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.)
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Abstract
The present invention discloses a method for processing non-circular holes on thick metal plates, which comprises the steps: holes are drilled on the thick metal plates, and the hole diameter of the drilled holes is smaller than the dimension of the holes required to be formed; afterwards, the drilled holes are punched by a punch for more than one time, the dimension of a procedure hole punched and formed at the previous times is smaller than that of the procedure hole punched and formed at the next time, and the hole diameter of the hole punched at the last time is the dimension of the hole required to be processed. The present invention can be used for processing ultra-thick metal plates, and has the advantages of high processing precision, little deformation, simple clamp and low cost.
Description
Technical field
The present invention relates to a kind of machining process, especially a kind of method of on thick metal plate, processing non-circular hole.
Background technology
Usually process methods such as the wired cutting of non-circular hole, slotting machine, electric spark on sheet metal, these processing methods are used on the thick metal plate and just have the problem that efficient is low, cost is high.And traditional process for stamping machining hole can only to be used in thickness be on the following light sheet of 15mm, and be the sheet material of 10-15mm for thickness, when machining hole, need use the special fixture clamping at the sheet material two ends, to reduce distortion, anchor clamps complexity, machining accuracy are difficult to assurance.And adopt the method for holing merely, can make the rough surface in hole again, and the aperture of boring is restricted.Especially a plurality of non-circular holes of processing on a sheet material often will frequently change the sheet material position, make the form and position tolerance in each hole be difficult to guarantee.In real work, usually can run into the situation of processing non-circular hole on thick metal plate.As the patent No. is that ZL00227092.7, name are called just need go up at " clips " in the utility model patent technology of " precast reinforced concrete piles snap joint " and process a plurality of square " link slots ", be used to insert " connecting pin " of snap joint.This just relates on 16-22mm or thicker steel plate and processes non-circular hole.If adopt existing processing method to be difficult to satisfy demand of practical production.
Summary of the invention
The objective of the invention is that a kind of cost is low, efficient is high in order to provide, and the method for on thick metal plate, processing non-circular hole that anchor clamps are simple, distortion is little, machining accuracy is higher.
Main technical schemes of the present invention is: hole on thick metal plate earlier, boring aperture is less than desired shaped hole size, with drift once above punching press is carried out in the hole that gets out then, the size in the operation hole that the size in the operation hole that preceding punching press forms all forms less than a back punching press, the aperture of last punching is the size in hole to be processed.
The present invention adopts punching press one by one after the boring, and each punching press makes the aperture further near the method in moulding hole.Required pressure when having reduced punching does not on the one hand need large-scale or special-purpose punch press and special-purpose complicated anchor clamps, has reduced sheet deformation, has guaranteed machining accuracy, has reduced processing cost simultaneously yet; Processing methods such as relative on the other hand machining center, line cutting, electric spark, the efficient again height of the present invention, the advantage that cost is low; The present invention can change the hole that punch shape processes various hole shapes.When needs are processed a plurality of non-circular hole on a sheet material, can on a nest plate, fix a plurality of drifts, one-shot forming is carried out in a plurality of operations hole after the boring, avoid using special fixture, can guarantee row position tolerance.
Description of drawings
Below in conjunction with specific embodiment the present invention is described in further detail:
Fig. 1 is the machining hole state diagram of one embodiment of the invention;
Fig. 2 is the three kind states of a certain machining hole shown in Figure 1 in process.
The specific embodiment
As shown in Figure 1 and Figure 2, present embodiment is a process of finishing processing rectangular through holes on the 16-22mm steel plate with the secondary punching press.On steel plate, hole earlier, bore size near and less than the required size that shapes the hole.Reduced the resistance of punching press first by boring, avoiding first, stamping pressure makes steel plate produce distortion too greatly.Can carry out punching first by punch press commonly used or forcing press after the boring, the punching hole shape is a rectangle, less than the formed long limit of the punching press second time, broadside is no more than bore diameter, also is no more than the broadside in the formed hole of punching press for the second time greater than bore diameter on its long limit.The purpose of punching press first is in order to reduce the resistance of secondary punching press, the precision of secondary punching press to be improved.The processing in hole is finished in the secondary punching press by processing request like this.When a plurality of hole, each punching press can once be dashed a hole, also can dash at twice, or once dash all holes.
The present invention can select difform drift for use as required when punching, just can process the hole except that circular, such as the hole of rectangle, triangle, polygon, ellipse and other special shapes.
Claims (1)
1, a kind of method of on thick metal plate, processing non-circular hole, it is characterized in that: on thick metal plate, hole earlier, boring aperture is less than desired shaped hole size, with drift once above punching press is carried out in the hole that gets out then, the size in the operation hole that the size in the operation hole that preceding punching press forms all forms less than a back punching press, the aperture of last punching is the size in hole to be processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01114718 CN1124183C (en) | 2001-05-21 | 2001-05-21 | Technology for processing non-circular hole on thick metal plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01114718 CN1124183C (en) | 2001-05-21 | 2001-05-21 | Technology for processing non-circular hole on thick metal plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1316306A CN1316306A (en) | 2001-10-10 |
| CN1124183C true CN1124183C (en) | 2003-10-15 |
Family
ID=4661341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01114718 Expired - Lifetime CN1124183C (en) | 2001-05-21 | 2001-05-21 | Technology for processing non-circular hole on thick metal plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1124183C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005089977A1 (en) * | 2004-03-18 | 2005-09-29 | Hayes Lemmerz International, Inc. | Fabricated vehicle wheel and method for producing same |
| CN105729565B (en) * | 2014-12-10 | 2019-03-29 | 西安航空动力控制科技有限公司 | A kind of method in punching canvas filler rubber film high dimensional accuracy hole |
| CN105537881B (en) * | 2016-01-29 | 2017-06-20 | 芜湖市海联机械设备有限公司 | A kind of mounting hole processing technology of end plate |
-
2001
- 2001-05-21 CN CN 01114718 patent/CN1124183C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1316306A (en) | 2001-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20031015 |
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| CX01 | Expiry of patent term |