CN106624213B - A kind of inner hole cone thread repairing method - Google Patents
A kind of inner hole cone thread repairing method Download PDFInfo
- Publication number
- CN106624213B CN106624213B CN201611168439.0A CN201611168439A CN106624213B CN 106624213 B CN106624213 B CN 106624213B CN 201611168439 A CN201611168439 A CN 201611168439A CN 106624213 B CN106624213 B CN 106624213B
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- Prior art keywords
- thread
- product
- gauge
- taper thread
- fixture
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G9/00—Working screws, bolt heads, or nuts in conjunction with thread cutting, e.g. slotting screw heads or shanks, removing burrs from screw heads or shanks; Finishing, e.g. polishing, any screw-thread
- B23G9/009—Thread cleaning or repairing
Abstract
The present invention relates to a kind of inner hole cone thread repairing methods, belong to screw thread process field.The thread repairing method of the present invention processes the standard component of inner hole cone screw product first, under the premise of not unloading standard component, screws in taper thread and detects gauge；The axial position and circumference relative position that taper thread detects gauge rear end face and fixture front end face are demarcated by locating rod；Taper thread detection gauge is fixed after screwing in product to be repaired with fixture, ensure taper thread detection gauge rear end face relative to fixture front end face axial position and circumference relative position with processing criterion part when it is consistent, length and the thread taper angle of the quasi- depth groove of gauge subscript are detected away from taper thread according to the rear end face of product to be repaired, adjust the radial increment of NC cutting tool, identical feed program when using with processing criterion part completes endoporus taper thread Repair gene.Thread repairing method of the present invention can accurately determine that the start position of screw thread, high precision machining, the product after screw thread reparation meet design requirement.
Description
Technical field
The present invention relates to a kind of inner hole cone thread repairing methods, belong to screw thread process field.
Background technology
During workpieces processing endoporus taper thread, it may occur that the underproof situation of screw thread time processing is needed to spiral shell
Line places under repair.The Major Difficulties of rethreading are to be difficult the start position for determining screw thread.If start position is inaccurate, just
Random button can be caused, product rejection is caused.Conventional threads renovation technique, the screw thread start position for finding workpiece can only be by manually grasping
Make experience guarantee, accurate to dimension is unstable, and processing efficiency is low.
Invention content
The purpose of the present invention is to solve the start positions that conventional threads renovation technique can not accurately determine screw thread, exist
The problems such as accurate to dimension is unstable, and processing efficiency is low, and a kind of inner hole cone thread repairing method is provided.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of inner hole cone thread repairing method of the present invention, steps are as follows for specific reparation：
1) after fixing the product blank before processing screw thread by fixture, pass through NC cutting tool and process inner hole cone screw product
Standard component, under the premise of not unloading standard component, pass through standard component endoporus screw in taper thread detect gauge examination criteria
Whether part meets product design requirement；
2) it when the endoporus taper thread of standard component, which meets taper thread, detects the screw-in depth requirement of gauge, is detected in taper thread
The rear end face of gauge fix one outside standard component side to the axially extending locating rod in standard component side, the front end of locating rod and folder
The fixture front end face of tight standards part contacts, and is marked in locating rod and fixture front end face contact position groove, record taper thread detection
The circumference relative position of gauge and fixture；
3) taper thread detection gauge and standard component are unloaded successively from fixture；It is examined with standard component using taper thread detection gauge
Taper thread detection gauge is screwed in the endoporus of product to be repaired, then product to be repaired is led to by identical torsional moment when survey screws
Fixture is crossed to fix；Product to be repaired fixed axial position on fixture ensures to detect the fixed locating rod of gauge with taper thread
Front end contacted with the front end face of fixture；Product to be repaired fixed circumferential position on fixture ensures and taper thread detection limit
It advises fixed locating rod front end and is directed toward fixture front end face groove mark；
4) rear end face for calculating product to be repaired detects the length L of the quasi- depth groove of gauge subscript away from taper thread, according to spiral shell
Line taper angle θ calculates the radial increment D of NC cutting tool, wherein D=L × tan θ；
5) taper thread detection gauge is unloaded from product to be repaired, control NC cutting tool is identical when using with processing criterion part
Rotary speed, radial withdrawing speed and axial feeding rate, the initial position and number when processing criterion part for adjusting NC cutting tool
The initial position of control cutter radially outward feeds D length, and NC cutting tool dallies after axial length L distance, starts to production to be repaired
The endoporus taper thread Repair gene of product, until Repair gene is completed.
Advantageous effect
Thread repairing method of the present invention is easy to operate, improves the processing efficiency of screw thread reparation, can accurately determine screw thread
Start position, high precision machining, the product after screw thread reparation meets design requirement.
Description of the drawings
Fig. 1 is the clamping schematic diagram using thread repairing method processing criterion part of the present invention；
Fig. 2 is the clamping schematic diagram that product to be repaired is processed using thread repairing method of the present invention；
In figure, 1- fixtures；2- standard components；3- taper threads detect gauge；4- locating rods；5- products to be repaired.
Specific implementation mode
Present disclosure is further described with reference to the accompanying drawings and examples.
Embodiment
A kind of inner hole cone thread repairing method of the present invention, steps are as follows for specific reparation：
1) after fixing the product blank before processing screw thread by fixture 1, pass through NC cutting tool and process the production of endoporus taper thread
The standard component 2 of product detects the inspection of gauge 3 under the premise of not unloading standard component 2 by screwing in taper thread in the endoporus of standard component 2
Survey whether standard component 2 meets product design requirement；
2) it when the endoporus taper thread of standard component 2, which meets taper thread, detects the screw-in depth requirement of gauge 3, is examined in taper thread
The rear end face of measuring gage 3 fixes one from 2 outer side of standard component to the axially extending locating rod 4 in 2 side of standard component, locating rod 4
Front end is contacted with the fixture front end face for clamping standard component 2, and is marked in locating rod and fixture front end face contact position groove, record cone
The circumference relative position of thread measurement gauge 3 and fixture, as shown in Figure 1；
3) taper thread detection gauge 3 and standard component 2 are unloaded successively from fixture 1, gauge 3 and standard are detected using taper thread
Taper thread detection gauge 3 is screwed in the endoporus of product 5 to be repaired by the detection of part 2 identical torsional moment when screwing, then will be to be repaired
Product 5 is fixed by fixture 1；Product 5 to be repaired fixed axial position on fixture 1 ensures solid with taper thread detection gauge 3
The fixed front end of locating rod 4 is contacted with the front end face of fixture；Product 5 to be repaired fixed circumferential position on fixture 1, ensure with
Taper thread detects 3 fixed locating rod of gauge, 4 front end and is directed toward fixture front end face groove mark, as shown in Figure 2；
4) rear end face for calculating product 5 to be repaired detects the length L of standard depth groove on gauge 3 away from taper thread, according to
Thread taper angle θ calculates the radial increment D of NC cutting tool, wherein D=L × tan θ；
5) taper thread detection gauge 3 is unloaded from product 5 to be repaired, when control NC cutting tool is used with processing criterion part 2
Identical rotary speed, radial withdrawing speed and axial feeding rate adjust the initial position and processing criterion part 2 of NC cutting tool
When NC cutting tool initial position radially outward feed D length, NC cutting tool dallies after axial length L distance, starts to be repaired
The endoporus taper thread Repair gene of product 5 is reproduced, until Repair gene is completed.
Claims (1)
1. a kind of inner hole cone thread repairing method, it is characterized in that steps are as follows for specific reparation：
1) after fixing the product blank before processing screw thread by fixture, pass through the mark that NC cutting tool processes inner hole cone screw product
Quasi- part, under the premise of not unloading standard component, by standard component endoporus screw in taper thread detect gauge examination criteria part be
It is no to meet product design requirement；
2) when the endoporus taper thread of standard component, which meets taper thread, detects the screw-in depth requirement of gauge, gauge is detected in taper thread
Rear end face fix one to the axially extending locating rod in standard component side, the front end of locating rod marked with clamping for side outside standard component
The fixture front end face of quasi- part contacts, and is marked in locating rod and fixture front end face contact position groove, and record taper thread detects gauge
With the circumference relative position of fixture；
3) taper thread detection gauge and standard component are unloaded successively from fixture；It is revolved using taper thread detection gauge and standard component detection
Taper thread detection gauge is screwed in the endoporus of product to be repaired, then product to be repaired is passed through folder by identical torsional moment when conjunction
Tool is fixed；Product to be repaired fixed axial position on fixture ensures before detecting the fixed locating rod of gauge with taper thread
End is contacted with the front end face of fixture；Product to be repaired fixed circumferential position on fixture ensures solid with taper thread detection gauge
It is directed toward fixture front end face groove mark in fixed locating rod front end；
4) rear end face for calculating product to be repaired detects the length L of the quasi- depth groove of gauge subscript away from taper thread, according to thread conical
Angle θ is spent, calculates the radial increment D of NC cutting tool, wherein D=L × tan θ；
5) taper thread detection gauge, identical rotation when using with processing criterion part of control NC cutting tool are unloaded from product to be repaired
Rotary speed, radial withdrawing speed and axial feeding rate, the initial position for adjusting NC cutting tool and numerical control knife when processing criterion part
The initial position of tool radially outward feeds D length, and NC cutting tool dallies after axial length L distance, starts to product to be repaired
Endoporus taper thread Repair gene, until Repair gene is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168439.0A CN106624213B (en) | 2016-12-16 | 2016-12-16 | A kind of inner hole cone thread repairing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168439.0A CN106624213B (en) | 2016-12-16 | 2016-12-16 | A kind of inner hole cone thread repairing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106624213A CN106624213A (en) | 2017-05-10 |
| CN106624213B true CN106624213B (en) | 2018-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611168439.0A Active CN106624213B (en) | 2016-12-16 | 2016-12-16 | A kind of inner hole cone thread repairing method |
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| CN (1) | CN106624213B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108480723B (en) * | 2018-01-18 | 2021-12-14 | 北汽利戴工业技术服务(北京)有限公司 | Common rail valve cap maintenance device and maintenance method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2790080B1 (en) * | 1999-02-24 | 2001-04-06 | Vallourec Mannesmann Oil & Gas | METHOD FOR CONTROLLING A CONICAL THREAD AND RELATED CONTROL DEVICES |
| CN2581939Y (en) * | 2002-11-15 | 2003-10-22 | 天津钢管有限责任公司 | Tapered thread shoulder ruling composite working plug gauge |
| DE102005047850A1 (en) * | 2005-10-05 | 2007-04-12 | DECOM Prüflabor GmbH & Co. KG | Apparatus and method for measuring at least one conical thread |
| CN2861948Y (en) * | 2005-12-08 | 2007-01-24 | 天津钢管集团有限公司 | Screw gauge dedicated for checking core rod |
| RU2599922C1 (en) * | 2015-04-07 | 2016-10-20 | Публичное акционерное общество специального машиностроения и металлургии "Мотовилихинские заводы" | Method for cutting external or internal taper thread with a cutter |
| CN105345176B (en) * | 2015-11-02 | 2017-12-05 | 上海建工（江苏）钢结构有限公司 | Semi-automatic screw thread prosthetic appliance |
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| Publication number | Publication date |
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| CN106624213A (en) | 2017-05-10 |
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