CN100431780C - Processing method of three-pyramidal face large angle crossing point metric gage - Google Patents
Processing method of three-pyramidal face large angle crossing point metric gage Download PDFInfo
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- CN100431780C CN100431780C CNB2006100951464A CN200610095146A CN100431780C CN 100431780 C CN100431780 C CN 100431780C CN B2006100951464 A CNB2006100951464 A CN B2006100951464A CN 200610095146 A CN200610095146 A CN 200610095146A CN 100431780 C CN100431780 C CN 100431780C
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Abstract
The invention relates to a method for processing three-taper large-angle cross gage. Wherein, it increases the grind left amount when machining blank; increases carbon penetrated depth when quenching blank; grinding the central holes at two ends of blank; grinding the taper surface while decreasing the feeding amount; using sand wheel to abrade the first and third taper surfaces; using incline work bench to abrade the second taper surface; using special clamper and microcaliper to abrade the first taper surface, control the effective working point size of gate; and furnishing the blank. The invention can reduce processing hardness, improve efficiency and confirm the accuracy.
Description
Technical field
The invention belongs to machining operation field, particularly a kind of processing method of three-pyramidal face large angle crossing point metric gage.
Background technology
As shown in drawings, the three-pyramidal face large angle crossing point metric gage right-hand member is the tail end datum level, its gauge is L1, technology groove L2 and third hand tap face α 3 join, second conical surface α 2 and first conical surface α 1 join respectively and form full cut-off ring size chain, the distance L 3 and first conical surface α 1 left intersects at φ 2 points from the tail end datum level, effective work intersecting point dimension for this gauge, the tolerance of the tolerance-0.003mm of distance L 3, diameter phi 2 is-0.004mm, gauge two ends centre bore is a special type, than the big 2mm of common A type centre bore, the tapering of first conical surface and third hand tap face is bigger.Owing to form sealed joint between first conical surface, second conical surface and the intersecting point dimension of this class gauge, and dimensional tolerance is too little, and shape and position degree require too high, and centre bore is bigger than normal, it is excessive or centre bore is jagged that finished product adds the man-hour depth of cut, all can cause the intersecting point dimension dislocation or size is extra small scraps.When traditional method was processed the type gauge, there are the following problems:
1, semi-finished product are put the mill surplus and are generally 0.40-0.60mm, and finished product divides thick correct grinding blank, causes first conical surface α, 1 surplus deficiency easily.
2, before the finished product processing, only slightly grind the pressure centre bore, because the hole is bigger than normal, when causing the grinding conical surface, the workpiece ovalize.
3, because this gauge size chain belongs to enclosed type, processing piecemeal from right to left in the grinding process, when grinding first conical surface α 1, third hand tap face α 3 taperings, the tilting headstock method of general employing, be datum level promptly,, utilize dial gauge control intersecting point dimension by with lathe headstock tilt angle alpha/2 with the view right side, cause that machine vibration increases, tapering face linearity is relatively poor, accumulated error is too big.
4, during grinding first conical surface α 1 tapering, be to utilize every of universal tool-measuring microscope to detect intersecting point dimension L3, α 1, φ 2, increase systematic error again.
5, first processing qualified after, instrument detecting again just behind 20 of the wheel grindings causes first conical surface α, 1 tapering qualification rate lower.
Owing to above reason, cause such gauge production efficiency extremely low, qualification rate has only about 10%.
Summary of the invention
The processing method that the purpose of this invention is to provide a kind of three-pyramidal face large angle crossing point metric gage, it can solve the processing difficulties that the type gauge self exists effectively, reduces difficulty of processing, enhances productivity, and guarantees the machining accuracy and the product quality requirement of product.
The object of the present invention is achieved like this:
1) require each cone of turning according to each cone angle of gauge, each cone blank that turning goes out to put the mill surplus be 0.6mm-0.7mm;
2) blank is quenched, the case-carbonizing degree of depth of its quenching is 0.7mm-1mm;
3) two axial ends of the blank after quenching slightly grind the pressure centre bore, and then the centre bore lappingout is pressed deburring;
4) grinding gauge blank tail end circle and directly by mill tail end datum level, and grind and press the tail end datum level, the perpendicularity of assurance datum level and centre bore;
5) adopt 0.03～0.05mm depth of cut corase grind forward successively piecemeal, adopt 0.003～0.005mm depth of cut to finish grind each conical surface from the third hand tap face of gauge blank near tail end, wherein, grinding third hand tap face adopts 1/2nd taperings polishing forming grinding wheel by this conical surface angle to carry out grinding; Grinding second conical surface adopts platen is carried out grinding by 1/2nd taperings of this conical surface angle are tilting, after the corase grind, surveys through instrument and qualifiedly to finish grind again; Grinding first conical surface, adopt 1/2nd taperings polishing forming grinding wheel to carry out grinding, after the corase grind, survey qualified correct grinding again through instrument by this conical surface angle, in grinding process, use the dedicated test anchor clamps that are used with micrometer to detect, control effective work intersecting point dimension of gauge;
6) intact each conical surface of grinding after the instrument survey is qualified, carries out slightly, finish grindes light to blank.
Owing to adopted said method, require to put each cone of mill surplus 0.6mm-0.7mm turning according to each cone angle of gauge, put the characteristic that the mill surplus satisfies this gauge conical surface intersection point closed-loop dimension chain by increase, again the gauge blank is quenched, the case-carbonizing degree of depth of quenching is 0.7mm-1mm, increase and to put that the case hardness of gauge blank still can reach technological requirement after the mill surplus, with qualification rate that guarantees product processing and the service life of improving gauge.After two axial ends of the blank after the quenching slightly grind the pressure centre bore, increase the operation of together the centre bore lappingout being pressed deburring, the precision of raising centre bore and bright and clean produces oval phenomenon in the time of preventing each conical surface of grinding.During each conical surface of grinding, corase grind adopts 0.03～0.05mm depth of cut, and correct grinding adopts 0.003～0.005mm depth of cut, and is littler than the grinding depth of cut of traditional peripheral milling, can avoid the gauge distortion.During grinding first and third conical surface, change the tilting headstock method grinding with lathe headstock tilt angle alpha/2 of former employing, and adopt 1/2nd taperings polishing forming grinding wheel to carry out grinding by this conical surface angle, operational vibration increases, causes tapering face linearity relatively poor after avoiding lathe because of the tilting headstock, the defective that accumulated error is too big, make the bigger grinding of tapering first and third conical surface, especially the intersecting point dimension of important process face first conical surface of gauge is accurately guaranteed.And in the process of grinding first conical surface, with the dedicated test anchor clamps that are used with micrometer detect, effective work intersecting point dimension of control gauge, both overcome former employing universal tool-measuring microscope spare part instrument and surveyed the deficiency of the systematic error increase that causes, detection speed is accelerated, greatly improved production efficiency.And the forming grinding wheel that grinding first conical surface adopts is after 10 of every grindings, must redress emery wheel by 1/2nd taperings of this conical surface angle, after the instrument survey is qualified, use just now, can prevent to be out of shape, influence the grinding accuracy of the gauge conical surface because of abrasion of grinding wheel is uneven.Behind intact each conical surface of grinding, blank is carried out slightly, finish grindes light, make the surface roughness of gauge reach Ra0.1um.
The inventive method has solved the processing difficulties that the type gauge self exists effectively, has greatly reduced difficulty of processing, has improved production efficiency, has guaranteed the machining accuracy and the product quality requirement of product.Adopt the method processing three-pyramidal face large angle crossing point metric gage, product percent of pass can from before 10% bring up to more than 70%, help single and mini-batch production production.
Description of drawings
Accompanying drawing is the structure diagram of three-pyramidal face large angle crossing point metric gage.
The specific embodiment
The structure of described three-pyramidal face large angle crossing point metric gage as shown in drawings, include first conical surface α 1 of front end, second conical surface α 2, the third hand tap face α 3 of afterbody, the straight round φ 1 of tail end and the intersection point φ 2 of the effective working distance L3 and first conical surface α 1 in stage casing, its processing method is carried out according to the following steps:
1) require each cone of turning according to each cone angle of this gauge, each cone blank that turning goes out to put the mill surplus be 0.6mm-0.7mm, satisfy the characteristic of this gauge conical surface intersection point closed-loop dimension chain.
2) the gauge blank that turning gone out quenches, and the case-carbonizing degree of depth of its quenching is 0.7mm-1mm, makes to increase to put that the case hardness of gauge blank still can reach technological requirement after the mill surplus.
3) two axial ends of the blank after quenching slightly grind the pressure centre bore by pincers worker, and then to the deburring of centre bore lappingout pressure, increase is to the operation of centre bore lappingout pressure deburring, and the precision of raising centre bore and bright and clean produces oval phenomenon in the time of preventing each conical surface of grinding.
4) grind with the directly round φ 1 of instrument circle mill grinding gauge blank tail end with by mill tail end datum level, and by pincers worker and to press the tail end datum level, guarantee datum level and the perpendicularity of centre bore and the flatness of end face, the thickness L1 that makes tail end directly justify φ 1 reaches dimensional requirement; Adopt projection grinder grinding tail end annular groove L2 then, guarantee annular groove face directly can with 3 smooth connections of third hand tap face α.
5) adopt 0.03～0.05mm depth of cut corase grind forward successively piecemeal, adopt 0.003～0.005mm depth of cut to finish grind each conical surface from the third hand tap face α 3 of gauge blank with instrument circle mill near tail end.Wherein, grinding third hand tap face α 3 adopts 1/2nd taperings polishing forming grinding wheel by this conical surface angle to carry out grinding, and corase grind finish grindes again earlier, because the third hand tap face is the size of stepping down, does not need instrument to survey precision after the grinding; Grinding second conical surface α 2 adopts platen is carried out grinding by 1/2nd taperings of this conical surface angle are tilting, after the corase grind, surveys through instrument and qualifiedly to finish grind again; Grinding first conical surface α 1 adopts 1/2nd taperings polishing forming grinding wheel by this conical surface angle to carry out grinding, after the corase grind, surveys qualified correct grinding again through instrument earlier; Because the tolerance of first conical surface α 1 is higher, after 10 of every grindings, must be by 1/2nd taperings of this conical surface angle emery wheel of polishing again, after the survey of workpiece instrument is qualified, continue grinding again, in grinding process, use the detection of dedicated test anchor clamps, effective work intersecting point dimension of control gauge, i.e. the intersection point φ 2 of the effective working distance L3 and first conical surface α 1 that are used with micrometer.Described dedicated test anchor clamps by one be provided with the sleeve of stepped hole, an interior cover and a dog screw that is provided with taper hole is formed, its interior cover interference fits that is provided with taper hole is in the big end of the stepped hole of sleeve, the tapering of the taper hole of interior cover is consistent with the tapering of gauge first conical surface, and the axiality of the taper hole small end of interior cover and the stepped hole small end of sleeve is no more than 0.004mm.At first the stepped hole small end of these anchor clamps by sleeve is enclosed within on the micrometering bar of micrometer, and with the fastening location of dog screw, prevent the anchor clamps play, get an intersecting point dimension has detected the band conical surface of qualified standard by universal tool-measuring microscope gauge then, its conical surface is cooperated with the taper hole of interior cover, after with micrometer this reference gauge being detected, utilize the retaining mechanism of micrometer to lock the standard state of this measurement, after taking off this reference gauge, just can the gauge of the band conical surface of processing have been detected one by one.Detect, during the effective work intersecting point dimension of control gauge, the taper hole that overlaps in first conical surface α 1 and these anchor clamps with the gauge of processing cooperates, gauge is stuck in the micrometer, compare by standard state with the measurement of micrometer locking, measure the tolerance of the gauge of the band conical surface of processing by the tuning drive gear of micrometer, if the tuning drive gear of micrometer reflects that intersecting point dimension is bigger than normal, can make the active length of gauge satisfy specification requirement by gauge tail end datum level is ground pressure; If the tuning drive gear of micrometer reflects that intersecting point dimension is less than normal, then the gauge of the band conical surface of expression processing is scrapped, and can not use.Adopt these dedicated test anchor clamps and micrometer to be used effective work intersecting point dimension of detection, control gauge, detect accurately, method is extremely simple, and the time spent is short, can enhance productivity, and also avoid former employing universal tool-measuring microscope to detect the systematic error that easily produces.
6) intact each conical surface of grinding after the instrument survey is qualified, carries out slightly, finish grindes light blank, makes the surface roughness of gauge reach Ra0.1um.
Then, finish operations such as instrument survey, chamfering, pincers worker according to a conventional method after, deliver for a check.
This processing method can make product percent of pass from before 10% bring up to more than 70%.
Claims (2)
1. the processing method of a three-pyramidal face large angle crossing point metric gage is characterized in that described processing method carries out according to the following steps:
1) require each cone of turning according to each cone angle of gauge, each cone blank that turning goes out to put the mill surplus be 0.6mm-0.7mm;
2) blank is quenched, the case-carbonizing degree of depth of its quenching is 0.7mm-1mm;
3) two axial ends of the blank after quenching slightly grind the pressure centre bore, and then the centre bore lappingout is pressed deburring;
4) grinding gauge blank tail end circle and directly by mill tail end datum level, and grind and press the tail end datum level, the perpendicularity of assurance datum level and centre bore;
5) adopt 0.03～0.05mm depth of cut corase grind forward successively piecemeal, adopt 0.003～0.005mm depth of cut to finish grind each conical surface from the third hand tap face of gauge blank near tail end, wherein, grinding third hand tap face adopts 1/2nd taperings polishing forming grinding wheel by this conical surface angle to carry out grinding; Grinding second conical surface adopts platen is carried out grinding by 1/2nd taperings of this conical surface angle are tilting, after the corase grind, surveys through instrument and qualifiedly to finish grind again; Grinding first conical surface, adopt 1/2nd taperings polishing forming grinding wheel to carry out grinding, after the corase grind, survey qualified correct grinding again through instrument by this conical surface angle, in grinding process, use the dedicated test anchor clamps that are used with micrometer to detect, control effective work intersecting point dimension of gauge; Described dedicated test anchor clamps are by a sleeve that is provided with stepped hole, an interior cover that is provided with taper hole, and dog screw is formed, its interior cover interference fits that is provided with taper hole is in the big end of the stepped hole of sleeve, the tapering of the taper hole of interior cover is consistent with the tapering of gauge first conical surface, the axiality of the taper hole small end of interior cover and the stepped hole small end of sleeve is no more than 0.004mm, the stepped hole small end of the sleeve by dedicated test folder is enclosed within on the micrometering bar of micrometer, and with the fastening location of dog screw, prevent the anchor clamps play, get an intersecting point dimension has detected the band conical surface of qualified standard by universal tool-measuring microscope gauge, its conical surface is cooperated with the taper hole of interior cover, after with micrometer this reference gauge being detected, utilize the retaining mechanism of micrometer to lock the standard state of this measurement, after taking off this reference gauge, just can the gauge of the band conical surface of processing have been detected one by one;
6) intact each conical surface of grinding after the instrument survey is qualified, carries out slightly, finish grindes light to blank.
2. the processing method of three-pyramidal face large angle crossing point metric gage according to claim 1 is characterized in that: behind the forming grinding wheel that described grinding first conical surface adopts, 10 of every grindings, must redress emery wheel by 1/2nd taperings of this conical surface angle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100951464A CN100431780C (en) | 2006-09-22 | 2006-09-22 | Processing method of three-pyramidal face large angle crossing point metric gage |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100951464A CN100431780C (en) | 2006-09-22 | 2006-09-22 | Processing method of three-pyramidal face large angle crossing point metric gage |
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| CN1923452A CN1923452A (en) | 2007-03-07 |
| CN100431780C true CN100431780C (en) | 2008-11-12 |
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| CNB2006100951464A Expired - Fee Related CN100431780C (en) | 2006-09-22 | 2006-09-22 | Processing method of three-pyramidal face large angle crossing point metric gage |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773772A (en) * | 2011-05-11 | 2012-11-14 | 铁道部运输局 | Processing method of taper shaft of driving device |
| CN103273278B (en) * | 2013-06-17 | 2015-12-02 | 沈阳飞机工业（集团）有限公司 | A kind of processing method of perpendicularity gauge |
| CN104416329A (en) * | 2013-08-23 | 2015-03-18 | 重庆长安工业(集团)有限责任公司 | Method for processing small-size spline ring gage |
| CN104827248B (en) * | 2015-04-22 | 2017-03-22 | 哈尔滨汽轮机厂有限责任公司 | Machining method of wedge-groove gauge |
| CN113732631B (en) * | 2021-09-10 | 2023-05-09 | 重庆建设工业(集团)有限责任公司 | Shaft dihedral angle intersection point size suspension position gauge and processing method thereof |
Citations (4)
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|---|---|---|---|---|
| US6421929B1 (en) * | 2000-12-21 | 2002-07-23 | Command Tooling Systems | Apparatus and method to measure tapered or conical parts |
| CN1371785A (en) * | 2001-02-28 | 2002-10-02 | 柳州市建筑机械总厂 | Technogical method for working anchor slab conic hole by extrusion and special extruding head |
| EP1284408A1 (en) * | 2001-08-17 | 2003-02-19 | SIP, Société Genevoise d'Instruments de Physique | Method and device for measuring cone geometry |
| US20060185184A1 (en) * | 2005-02-18 | 2006-08-24 | The Gleason Works | Method of gaging on gear lapping and testing machines |
-
2006
- 2006-09-22 CN CNB2006100951464A patent/CN100431780C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6421929B1 (en) * | 2000-12-21 | 2002-07-23 | Command Tooling Systems | Apparatus and method to measure tapered or conical parts |
| CN1371785A (en) * | 2001-02-28 | 2002-10-02 | 柳州市建筑机械总厂 | Technogical method for working anchor slab conic hole by extrusion and special extruding head |
| EP1284408A1 (en) * | 2001-08-17 | 2003-02-19 | SIP, Société Genevoise d'Instruments de Physique | Method and device for measuring cone geometry |
| US20060185184A1 (en) * | 2005-02-18 | 2006-08-24 | The Gleason Works | Method of gaging on gear lapping and testing machines |
Non-Patent Citations (2)
| Title |
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| 高精度圆锥量规的加工工艺分析. 蒋兆宏.机车车辆工艺，第3期. 2002 |
| 高精度圆锥量规的加工工艺分析. 蒋兆宏.机车车辆工艺，第3期. 2002 * |
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Effective date of registration: 20151125 Address after: 400054 Banan District, Chongqing building Avenue, No. 2, building 1 Patentee after: CHONGQING CONSTRUCTION ELECTROMECHANICAL CO., LTD. Address before: Zheng Jie 400050 Xiejiawan Jiulongpo District of Chongqing City No. 47 Patentee before: Chongqing Jianshe Motorcycle Co., Ltd. |
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Granted publication date: 20081112 Termination date: 20160922 |