CN107186050B - The method of stainless steel thickness material part fine blanking hole - Google Patents
The method of stainless steel thickness material part fine blanking hole Download PDFInfo
- Publication number
- CN107186050B CN107186050B CN201710464453.3A CN201710464453A CN107186050B CN 107186050 B CN107186050 B CN 107186050B CN 201710464453 A CN201710464453 A CN 201710464453A CN 107186050 B CN107186050 B CN 107186050B
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- Prior art keywords
- stainless steel
- semi
- plate part
- piercing
- thick plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Punching Or Piercing (AREA)
Abstract
This case discloses a kind of method of stainless steel thick plate part fine blanking hole, including following operating procedure: step 1: stainless steel thick plate part is fixed, start press machine and carry out pre-punched hole, forms one in pre- punching to stainless steel thick plate part as the pre-punched hole just positioned, passing punch is retracted；Step 2: stainless steel thick plate part moves forward a step pitch, and driving semi-piercing formed punch carries out semi-piercing, do not wash from waste material from stainless steel thick plate part completely during semi-piercing, and waste material of half punching to semi-piercing lower end is compacted, and semi-piercing formed punch retracts；Step 3: stainless steel thick plate part moves forward a step pitch again, and starting press machine carries out fine blanking hole；Step 4: fine blanking hole formed punch retracts, and unloads stainless steel thick plate part, completes punching.The method that this case uses the stainless steel thick plate part fine blanking hole solves thick material fine blanking hole reverse side and generates burr, processes the problem that euphotic belt is inadequate in hole.
Description
Technical field
The present invention relates to stamping die fields, specifically, the present invention and a kind of method of stainless steel thickness material part fine blanking hole.
Background technique
In the field of machining, carrying out fine blanking hole to material is a common procedure, fine blanking technology and common stamping
Process characteristic there are this qualitative difference, common stamping controls the tearing of plate in blanking process, and fine is then in punching
Try every possible means and inhibit the tearing of plate, metal blank is in plastic history always during fine.It is right in existing technology
Thickness material fine blanking hole is generally divided into the progress of two steps, and first thick punching is primary first, then carries out fine again, but such method is after processing
The burr of bore edges is more, and hole machined is of low quality, and euphotic belt cannot be met the requirements.
Summary of the invention
It is an object of the invention to solve at least the above problems, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of methods of stainless steel thickness material part fine blanking hole, using passing punch
Pre-punched hole is first carried out, then carries out semi-piercing again, finally carries out fine blanking hole again, during semi-piercing, semi-piercing lower end is given up
Material is compacted compacting, to ensure that the hole reverse side impulse- free robustness that fine comes out, and Hole Wall Roughness is small, hole wall is covered with euphotic belt,
It solves thick material fine blanking hole reverse side and generates burr, the inadequate technical problem of euphotic belt.
In order to realize these purposes and other advantages according to the present invention, a kind of stainless steel thickness material part fine blanking hole is provided
Method, comprising:
Step 1: stainless steel thick plate part being fixed, starting press machine carries out pre-punched hole, pre- punching to stainless steel thick plate part
It is upper to form one as the pre-punched hole just positioned, passing punch is retracted；
Step 2: stainless steel thick plate part moves forward a step pitch, and driving semi-piercing formed punch carries out semi-piercing, semi-piercing
Waste material is not washed from from stainless steel thick plate part completely in the process, waste material of half punching to semi-piercing lower end is compacted, semi-piercing
Formed punch retracts；Guide-localization is carried out using guidance needle before semi-piercing formed punch carries out semi-piercing, guidance needle is first into pre-
In punching, then stripper compressing component, semi-piercing formed punch carry out semi-piercing.
Step 3: stainless steel thick plate part moves forward a step pitch again, and starting press machine carries out fine blanking hole；
Step 4: fine blanking hole formed punch retracts, and unloads stainless steel thick plate part, completes punching.
Preferably, the diameter of the diameter and the pre-punched hole of the guidance needle matches.
Preferably, the guidance needle length is 0.8~1 stainless steel thick plate part thickness.
Preferably, in the step 2, during semi-piercing, the lowest positions control of the semi-piercing formed punch exists
The middle and lower part of the pre-punched hole.
Preferably, the diameter of the semi-piercing formed punch is greater than the passing punch diameter and is less than the fine blanking hole formed punch
Diameter.
The beneficial effects of the present invention are: this case is by increasing by a step semi-piercing among the pre-punched hole and fine blanking hole the step of,
Waste material is not rushed during semi-piercing to disengaging stainless steel thick plate part completely, but the waste material of semi-piercing lower end is compacted, then
The reverse side in hole will not generate burr and be covered with euphotic belt on the hole wall that processes when carrying out fine blanking hole.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of step 1 of the present invention；
Fig. 2 is the structural schematic diagram of step 2 of the present invention；
Fig. 3 is the structural schematic diagram of step 3 of the present invention.
Specific embodiment
Referring to picture, the present invention is described in further detail in conjunction with the embodiments, to enable those skilled in the art join
Book text can be implemented accordingly as directed.
A kind of method that stainless steel thickness material part fine blanking hole is listed in this case, has used a kind of fine punch die, and mold includes
Upper and lower mould group is equipped with passing punch, semi-piercing formed punch and fine blanking hole formed punch in upper mold group, and the diameter of semi-piercing formed punch is big
In passing punch diameter and it is less than fine blanking hole punch diameter, by these formed punches, part moves a step pitch every time to complete
One step, is finally completed fine blanking hole.
As shown, punching process integrally includes that there are four steps:
Step 1, as shown in Figure 1, stainless steel thickness material part 2 is placed on cavity plate and its position is fixed, starting pressure
Power machine makes upper mold group downlink, drives 1 downlink of passing punch, and passing punch 1 first goes out pre-punched hole, and pre-punched hole is as just fixed
, upper mold group uplink after the completion of pre-punched hole drives 1 uplink of passing punch to return back to initial position.
Step 2, as shown in Fig. 2, stainless steel thickness material part 2 is moved forward a step pitch, upper mold group downlink again, driving
3 downlink of semi-piercing formed punch, semi-piercing formed punch 3 carry out semi-piercing before, first using guidance needle 4 to stainless steel thickness material part 2 into
Row guide-localization, the length of guidance needle 4 are 0.8~1 stainless steel thick plate part thickness, guide the diameter and pre-punched hole of needle 4
Diameter matches, and guidance needle 4, which is first into pre-punched hole, is adjusted the position of stainless steel thickness material part 2, is positioning
Cheng Hou, stripper compress stainless steel thickness material part 2 simultaneously, and semi-piercing formed punch 3 carries out semi-piercing, and during semi-piercing, half is rushed
Hole formed punch 3 is not fully punched through stainless steel thick plate part, and the lowest positions of semi-piercing formed punch 3 control in pre-punched hole, and half rushes
Hole formed punch 3 stops in the later half pierce punch 3 in middle and lower part position for going downwards to pre-punched hole, and upper die holder drives 3 uplink of semi-piercing formed punch
It retracts, waste material 5 is not detached from from part completely at this time, and the waste material of semi-piercing lower end is compacted, thus when carrying out fine blanking hole
The edge in hole will not generate burr.
Step 3, as shown in figure 3, stainless steel thickness material part 2 is moved forward a step pitch, upper die holder downlink, driving again
6 fine of fine blanking hole formed punch with accurate guide-localization part is portalled.
Step 4, upper die holder uplink, control fine blanking hole formed punch 6 retract, and unload stainless steel thickness material part 2, and punching is completed.
In above-mentioned technical proposal, be successively arranged on the upper die holder of stamping die passing punch 1, semi-piercing formed punch 3 with
And fine blanking hole formed punch 6.Stainless steel thickness material part 2 fixed first, driving passing punch 1 carry out pre-punched hole, then moving parts
To previous step pitch, semi-piercing formed punch 3 is driven to carry out semi-piercing, waste material 5 not exclusively falls off from semi-piercing, semi-piercing lower end
Waste material is compacted, and after the completion of semi-piercing, stainless steel thickness material part is moved forward a step pitch again, drives fine blanking hole formed punch
6 carry out fine blanking holes, and after fine, control fine blanking hole formed punch 6 return back to initial position, unload stainless steel thickness material part 2, punching
It completes.
From the above mentioned, the present invention by between pre-punched hole process and fine blanking hole process increase a semi-piercing step,
During semi-piercing, waste material not exclusively falls off from semi-piercing, after the waste material of semi-piercing lower end is compacted compacting, then carries out fine
Kong Shi, processing bore edges will not generate burr, and the hole roughness that the method applied in the present invention processes is low, and can be covered with light
Bright band.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details.
Claims (5)
1. a kind of method of stainless steel thick plate part fine blanking hole, which comprises the following steps:
Step 1: stainless steel thick plate part being fixed, starting press machine carries out pre-punched hole, pre- punching to shape on stainless steel thick plate part
At one as the pre-punched hole just positioned, passing punch is retracted；
Step 2: stainless steel thick plate part moves forward a step pitch, and driving semi-piercing formed punch carries out semi-piercing, semi-piercing process
In waste material is not washed from from stainless steel thick plate part completely, waste material of half punching to semi-piercing lower end is compacted, semi-piercing formed punch
It retracts；Guide-localization is carried out using guidance needle before semi-piercing formed punch carries out semi-piercing, guidance needle is first into pre-punched hole
In, then stripper compressing component, semi-piercing formed punch carry out semi-piercing；
Step 3: stainless steel thick plate part moves forward a step pitch again, and starting press machine carries out fine blanking hole；
Step 4: fine blanking hole formed punch retracts, and unloads stainless steel thick plate part, completes punching.
2. the method for stainless steel thick plate part fine blanking hole as described in claim 1, which is characterized in that the diameter of the guidance needle
Match with the diameter of the pre-punched hole.
3. the method for stainless steel thick plate part fine blanking hole as described in claim 1, which is characterized in that the guidance needle length is
0.8~1 stainless steel thick plate part thickness.
4. the method for stainless steel thick plate part fine blanking hole as described in claim 1, which is characterized in that in the step 2, half
During punching, the lowest positions of the semi-piercing formed punch are controlled in the middle and lower part of the pre-punched hole.
5. the method for stainless steel thick plate part fine blanking hole as claimed in claim 4, which is characterized in that the semi-piercing formed punch
Diameter is greater than the passing punch diameter and is less than the fine blanking hole punch diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710464453.3A CN107186050B (en) | 2017-06-19 | 2017-06-19 | The method of stainless steel thickness material part fine blanking hole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710464453.3A CN107186050B (en) | 2017-06-19 | 2017-06-19 | The method of stainless steel thickness material part fine blanking hole |
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| Publication Number | Publication Date |
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| CN107186050A CN107186050A (en) | 2017-09-22 |
| CN107186050B true CN107186050B (en) | 2019-06-11 |
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| CN201710464453.3A Active CN107186050B (en) | 2017-06-19 | 2017-06-19 | The method of stainless steel thickness material part fine blanking hole |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675954A (en) * | 2018-12-17 | 2019-04-26 | 天津津荣天宇精密机械股份有限公司 | A kind of moulding process of thick material high-strength steel sheet punching euphotic belt |
| CN110640015A (en) * | 2019-11-15 | 2020-01-03 | 常州洛合精密机械有限公司 | Progressive die fine blanking method |
| CN113714381A (en) * | 2021-07-27 | 2021-11-30 | 上海赛科利汽车模具技术应用有限公司 | Punching method for deburring steel shell |
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| SU1733167A1 (en) * | 1990-01-29 | 1992-05-15 | Хабаровский филиал Центрального научно-исследовательского института технологии судостроения | Progressive die set |
| CN1546295A (en) * | 2003-12-01 | 2004-11-17 | 中国重型汽车集团有限公司 | Process for fabricating blind holes |
| CN201179541Y (en) * | 2008-04-29 | 2009-01-14 | 天津理工大学 | Stage-mould feeding precision positioning apparatus employing guide hole two-stage eyelet work |
| CN202316751U (en) * | 2011-11-23 | 2012-07-11 | 中国重汽集团济南动力有限公司 | Fine blanking mould for thick plate |
| CN202861110U (en) * | 2012-09-07 | 2013-04-10 | 苏州铭峰精密机械有限公司 | High-precise blanking stamping structure |
| CN204159719U (en) * | 2014-07-26 | 2015-02-18 | 保定苏博汽车零件制造有限公司 | A kind of half cut-off-die |
| CN204603057U (en) * | 2015-05-08 | 2015-09-02 | 苏州先科精密机械有限公司 | A kind of continuous mould improving disconnected tangent plane and flatness |
-
2017
- 2017-06-19 CN CN201710464453.3A patent/CN107186050B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1733167A1 (en) * | 1990-01-29 | 1992-05-15 | Хабаровский филиал Центрального научно-исследовательского института технологии судостроения | Progressive die set |
| CN1546295A (en) * | 2003-12-01 | 2004-11-17 | 中国重型汽车集团有限公司 | Process for fabricating blind holes |
| CN201179541Y (en) * | 2008-04-29 | 2009-01-14 | 天津理工大学 | Stage-mould feeding precision positioning apparatus employing guide hole two-stage eyelet work |
| CN202316751U (en) * | 2011-11-23 | 2012-07-11 | 中国重汽集团济南动力有限公司 | Fine blanking mould for thick plate |
| CN202861110U (en) * | 2012-09-07 | 2013-04-10 | 苏州铭峰精密机械有限公司 | High-precise blanking stamping structure |
| CN204159719U (en) * | 2014-07-26 | 2015-02-18 | 保定苏博汽车零件制造有限公司 | A kind of half cut-off-die |
| CN204603057U (en) * | 2015-05-08 | 2015-09-02 | 苏州先科精密机械有限公司 | A kind of continuous mould improving disconnected tangent plane and flatness |
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| CN107186050A (en) | 2017-09-22 |
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