CN102554587A - Internal thread machining improved process - Google Patents
Internal thread machining improved process Download PDFInfo
- Publication number
- CN102554587A CN102554587A CN2010106136914A CN201010613691A CN102554587A CN 102554587 A CN102554587 A CN 102554587A CN 2010106136914 A CN2010106136914 A CN 2010106136914A CN 201010613691 A CN201010613691 A CN 201010613691A CN 102554587 A CN102554587 A CN 102554587A
- Authority
- CN
- China
- Prior art keywords
- internal thread
- hole
- improved process
- sprouting
- thread
- 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
Links
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses an internal thread machining improved process, which specifically comprises the following steps of: performing drawing pretreatment: drawing for a set depth at a place, where internal thread is required to be machined, on a plate to be machined; pre-punching a hole: punching a coaxial pre-punched hole at the drawing position; sprouting: sprouting on the pre-punched hole to form a columnar through hole without internal thread by using a punch; and finally tapping: tapping thread in the sprouted columnar through hole to form a threaded hole by using a thread tap. According to the internal thread machining improved process, by increasing a one-step drawing process, a material deforms through two drawing processes to reach the required flanging height, so that stress concentration of the material can be greatly reduced, the situation of serious crack at the thread can be effectively improved, the product quality is improved, the reject rate is reduced, the cost is saved, and a product is safer and more reliable in use.
Description
Technical field
The present invention relates to a kind of Thread Machining Process, particularly a kind of internal thread machining improved process of sheet material.
Background technology
At present, in the internal thread processing technique that sheet material is used always, its step is generally: pre-punched hole, flange, tapping, its shortcoming are screw thread place severe crack, influence crudy, make product rejection rate big.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides a kind of internal thread machining improved process, use this internal thread machining improved process can effectively improve the situation of screw thread place severe crack, improve the quality of products, reduce cost.
The present invention for the technical scheme that solves its technical problem and adopt is: a kind of internal thread machining improved process, and concrete steps are following:
Step 1: stretching preliminary treatment: on the sheet material of generation processing, need the degree of depth of the place stretching setting of machining internal thread, sheet material stretcher strain just forms a pit in the place that is needing machining internal thread like this;
Step 2: pre-punched hole: form a coaxial pre-punched hole in the stretch position punching press;
Step 3: sprout: with drift on pre-punched hole, sprout (being flange, the further stretcher strain of material) form the column through hole of a no internal thread;
Step 4: tapping: form screwed hole with carrying out tapping in the column through hole of screw tap after sprouting.
Through above step, material is through twice stretcher strain, and the stress of material internal is concentrated smaller, and wall thickness is thicker, is not easy to occur situation such as crack fracture, uses safety and stability.
The invention has the beneficial effects as follows: the present invention is through increasing once step stretching technology; Material is met the requirements of the flange height through twice stretcher strain, can reduce the stress of material greatly and concentrate, can effectively improve the situation of screw thread place severe crack; Improve the quality of products; Reduce scrappage, save cost, product is also safety and reliability in use.
Description of drawings
The diel structural representation of Fig. 1 for using among the present invention.
Accompanying drawing is made following supplementary notes
A-stretching pretreatment process, B-pre-punched hole operation, the C-operation of sprouting
The specific embodiment
Embodiment: a kind of internal thread machining improved process, concrete steps are following:
Step 1: stretching preliminary treatment A: on the sheet material of generation processing, need the degree of depth of the place stretching setting of machining internal thread, sheet material stretcher strain just forms a pit in the place that is needing machining internal thread like this;
Step 2: pre-punched hole B: form a coaxial pre-punched hole in the stretch position punching press;
Step 3: C sprouts: with drift on pre-punched hole, sprout (being flange, the further stretcher strain of material) form the column through hole of a no internal thread;
Step 4: tapping: form screwed hole with carrying out tapping in the column through hole of screw tap after sprouting.
Through above step, material is through twice stretcher strain, and the stress of material internal is concentrated smaller, and wall thickness is thicker, is not easy to occur situation such as crack fracture, uses safety and stability.
Claims (1)
1. internal thread machining improved process, it is characterized in that: concrete steps are following:
Step 1: stretching preliminary treatment: the degree of depth that on the sheet material of generation processing, needs the place stretching setting of machining internal thread;
Step 2: pre-punched hole: form a coaxial pre-punched hole in the stretch position punching press;
Step 3: sprout: sprouting on pre-punched hole with drift forms the column through hole of a no internal thread;
Step 4: tapping: form screwed hole with carrying out tapping in the column through hole of screw tap after sprouting.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010106136914A CN102554587A (en) | 2010-12-30 | 2010-12-30 | Internal thread machining improved process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010106136914A CN102554587A (en) | 2010-12-30 | 2010-12-30 | Internal thread machining improved process |
Publications (1)
Publication Number | Publication Date |
---|---|
CN102554587A true CN102554587A (en) | 2012-07-11 |
Family
ID=46401914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010106136914A Pending CN102554587A (en) | 2010-12-30 | 2010-12-30 | Internal thread machining improved process |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN102554587A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106424328A (en) * | 2016-10-27 | 2017-02-22 | 东莞市豪顺精密科技有限公司 | Flange hole forming technique |
CN109571042A (en) * | 2018-12-31 | 2019-04-05 | 合肥高科科技股份有限公司 | A kind of automatic C line backboard production procedure |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5897431A (en) * | 1981-12-02 | 1983-06-09 | Ogura Kinzoku Kk | Manufacture of deep drawing press product |
JPH07171644A (en) * | 1992-08-28 | 1995-07-11 | Hachiro Nagamori | Method for progressively producing hollow knock pin |
JP2006263768A (en) * | 2005-02-28 | 2006-10-05 | Aisin Aw Co Ltd | Apparatus and method for press working |
CN101209472A (en) * | 2006-12-27 | 2008-07-02 | 上海德真工贸有限公司 | Method of preparing lining for cars |
-
2010
- 2010-12-30 CN CN2010106136914A patent/CN102554587A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5897431A (en) * | 1981-12-02 | 1983-06-09 | Ogura Kinzoku Kk | Manufacture of deep drawing press product |
JPH07171644A (en) * | 1992-08-28 | 1995-07-11 | Hachiro Nagamori | Method for progressively producing hollow knock pin |
JP2006263768A (en) * | 2005-02-28 | 2006-10-05 | Aisin Aw Co Ltd | Apparatus and method for press working |
CN101209472A (en) * | 2006-12-27 | 2008-07-02 | 上海德真工贸有限公司 | Method of preparing lining for cars |
Non-Patent Citations (1)
Title |
---|
姚伟煌: "机加工中一种薄板小螺纹底孔翻边模的设计", 《广西轻工业》, no. 11, 30 November 2010 (2010-11-30) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106424328A (en) * | 2016-10-27 | 2017-02-22 | 东莞市豪顺精密科技有限公司 | Flange hole forming technique |
CN109571042A (en) * | 2018-12-31 | 2019-04-05 | 合肥高科科技股份有限公司 | A kind of automatic C line backboard production procedure |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
MY160038A (en) | Manufacturing method for sugar solution and device for same | |
MX361908B (en) | Press component and method and device for manufacturing same. | |
MX2021008297A (en) | Shearing method. | |
CN102218642B (en) | Manufacturing method of thick wall steel pipe with small radius-thickness ratio used for building structure | |
CN103949539A (en) | Window punching process for clutch gland | |
CN102554587A (en) | Internal thread machining improved process | |
CN206484491U (en) | A kind of large scale equipment disassembling positioning pin frock | |
CN101972813A (en) | Stamping die | |
CN108057995B (en) | Stamping and tapping process for fastening nut | |
RU2620535C2 (en) | Flange and its forming method | |
CN101100626A (en) | Method for increasing vegetable seed/soybean oil-yielding ratio | |
CN104971963A (en) | Slab forging process | |
CN204036526U (en) | A kind of rubber is from dismantling device | |
CN105945190A (en) | Free forging technology of large-scale module | |
CN206242536U (en) | A kind of servo digital control lower cylinder type four-column hydraulic press | |
CN204710958U (en) | A high-efficient stamping die for punch | |
CN107138598A (en) | Leaf spring connecting hole post forming device | |
CN205309840U (en) | One -way fixed anchor clamps that punch | |
CN205217795U (en) | Mould suitable for tubular product class section bar inner wall press in nut | |
CN203245205U (en) | Hot extrusion reaming head | |
CN204276776U (en) | Slipping of clutch ratchet mould | |
CN106825214A (en) | Automotive brake fluid pipe holder production technology | |
CN102500671A (en) | Flanging device of central hole of convex-shaped end enclosure in pressure container | |
CN202910179U (en) | Abnormal shape terrace die structure | |
CN202668136U (en) | Tool for turning bearing hole and milling top surface of speed reducer casing |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C12 | Rejection of a patent application after its publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120711 |