CN103921194A - Process for machining arc blind grooves in end surfaces of shaft parts - Google Patents
Process for machining arc blind grooves in end surfaces of shaft parts Download PDFInfo
- Publication number
- CN103921194A CN103921194A CN201410110173.9A CN201410110173A CN103921194A CN 103921194 A CN103921194 A CN 103921194A CN 201410110173 A CN201410110173 A CN 201410110173A CN 103921194 A CN103921194 A CN 103921194A
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- CN
- China
- Prior art keywords
- axial workpiece
- shaft parts
- finished product
- face
- machining
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention relates to a process for machining arc blind grooves in the end surfaces of shaft parts. The process includes steps of lapping center holes in two ends of a thermally treated blank of each shaft part; clamping a semi-finished product of each shaft part on a external cylindrical grinding machine, butting the lapped center holes of the blank of each shaft part by two apexes of the external cylindrical grinding machine, starting the external cylindrical grinding machine and coarsely grinding and machining the outer-diameter sides of the semi-finished products of the shaft parts; accurately grinding and machining the outer-diameter sides of coarse materials of the shaft parts; locating and accurately grinding the end surfaces of fine materials of the shaft parts according to the accurately ground outer-diameter sides of the fine materials of the shaft parts by the aid of a universal tool grinding machine; clamping finished product materials of the shaft parts on the external cylindrical grinding machine with a pneumatic internal cylindrical grinding head, locating the centers of the finished product materials of the shaft parts according to the accurately ground outer-diameter sides of the finished product materials of the shaft parts and machining the arc blind grooves in the end surfaces of the shaft parts on the axial locating basis of the accurately ground end surfaces of the finished product materials of the shaft parts. The process has the advantages of high machining speed and efficiency, low machining cost, suitability for industrial production and the like.
Description
Technical field
The present invention relates to a kind of process for machining, the present invention especially relates to a kind of technique that processes circular arc blind slot on axial workpiece end face.
Background technology
In the past, the step that processes the technique of circular arc blind slot on the end face of axial workpiece was: after the external diameter of axial workpiece and end face machine, with line cutting mode, at part end face, process circular arc groove.It is circular arc groove that this mode is mainly suitable for part end face, simultaneously because line cutting processing molybdenum filament exists the inevitable factor impact such as beat, the product of the precision that can only process radial slot size within the scope of ± 0.01mm, cannot meet the processing of high-precision part.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide that a kind of process velocity is fast, efficiency is high, processing cost is low and applicable industrialization is produced on the end face of axial workpiece, processes the technique of circular arc blind slot.
According to technical scheme provided by the invention, the described technique that processes circular arc blind slot on the end face of axial workpiece comprises the following steps:
Centre bore is ground out at the both ends of a, the axial workpiece blank after heat treatment, obtains axial workpiece semi-finished product;
B, by axial workpiece semi-finished product clamping on cylindrical grinder, the two top centre bores that ground that withstand of cylindrical grinder, start cylindrical grinder, and the half-finished external diameter of axial workpiece is roughly ground to processing, obtain axial workpiece coarse fodder;
C, the external diameter of axial workpiece coarse fodder is carried out to fine grinding, obtain axial workpiece fine fodder;
D, use universal cutter grinder, position the end face of fine grinding axial workpiece fine fodder with the external diameter of the axial workpiece fine fodder after refining, this end face, for processing the end face of circular arc blind slot thereon, obtains axial workpiece finished product material;
E, by axial workpiece finished product material clamping on cylindrical grinder, cylindrical grinder uses pneumatic internal grinding head, with the external diameter centre of location after refining and using fine grinding after end face as axial location benchmark, on end face, process circular arc blind slot.
The invention solves an end face blind slot processing difficult problem, technique of the present invention has that process velocity is fast, efficiency is high, processing cost is low and the advantage such as applicable industrialization production.
The specific embodiment
Below in conjunction with specific embodiment, the invention will be further described.
A kind of technique that processes circular arc blind slot on the end face of axial workpiece comprises the following steps:
Centre bore is ground out at the both ends of a, the axial workpiece blank after heat treatment, obtains axial workpiece semi-finished product;
B, by axial workpiece semi-finished product clamping on cylindrical grinder, the two top centre bores that ground that withstand of cylindrical grinder, start cylindrical grinder, and the half-finished external diameter of axial workpiece is roughly ground to processing, obtain axial workpiece coarse fodder;
C, the external diameter of axial workpiece coarse fodder is carried out to fine grinding, obtain axial workpiece fine fodder;
D, use universal cutter grinder, position the end face of fine grinding axial workpiece fine fodder with the external diameter of the axial workpiece fine fodder after refining, this end face, for processing the end face of circular arc blind slot thereon, obtains axial workpiece finished product material;
E, by axial workpiece finished product material clamping on cylindrical grinder, cylindrical grinder uses pneumatic internal grinding head, with the external diameter centre of location after refining and using fine grinding after end face as axial location benchmark, on end face, process circular arc blind slot.
In the present invention, the effect of step b is: remove most of surplus, for lower step fine grinding is prepared; The half-finished external diameter of axial workpiece is roughly ground and added man-hour linear velocity and be controlled at 30 ~ 40m/min, and the amount of feeding is controlled at 0.6 ~ 0.8mm/min, and made allowance is controlled at 0.04 ~ 0.06mm.After corase grind, require circularity to be controlled at 0.008 ~ 0.01mm, roughness Rz6.3;
The effect of step c is: keep the most accurate geometry of part external diameter and meticulous size, reach the external diameter designing requirement of part; When the external diameter of axial workpiece coarse fodder is carried out to fine grinding, linear velocity is controlled at 30 ~ 40m/min, and the amount of feeding is controlled at 0.3 ~ 0.4mm/min.After fine grinding, require circularity to be controlled at 0.004 ~ 0.006mm, roughness Rz2;
The effect of steps d is: end face is processed, reached the face size requirement of part, can be used as the positioning datum of pneumatic internal grinder Machining Arc blind slot simultaneously; During the end face of fine grinding axial workpiece fine fodder, linear velocity is controlled at 40 ~ 45m/s, and the amount of feeding is controlled at 0.6 ~ 0.8mm/min;
The effect of step e is: air grinder high speed and the controlled principle of working depth of utilizing cylindrical grinder, the size showing by dial of machine-tool, tolerance in conjunction with part, manually after parameters, grinding wheel feed crush grinding, Machining Arc shape blind slot, reaches arc size, the depth requirements of high accuracy blind slot on the end face of part; While processing circular arc blind slot, the air pressure of pneumatic internal grinding head is controlled at 2.5 ~ 3bar, and bistrique rotating speed is controlled at 100,000 ~ 130,000 rpm, and linear velocity is controlled at 3 ~ 5m/s.Mill bar is radially roughly ground the amount of feeding and is controlled at 0.15 ~ 0.2mm/min, and mill bar radially refines the amount of feeding and is controlled at 0.1 ~ 0.15mm/min, and axial feeding is controlled at 0.8 ~ 1mm/s.
Technique of the present invention has advantages of:
1, different from traditional grinding process, the locking of the grinding machine spindle headstock, has realized directed grinding;
2, by self-control simple frock, realize circumferential, axial location, axially can realize oscillating grinding;
3, solved an end face blind slot processing difficult problem, pneumatic internal grinding head adopts the emery wheel of electroplating CBN material, this material has the feature of difficult drop-off, can realize the grinding of radius R 0.2 and above arc groove, can reach ± 0.003mm of the precision of radial slot depth dimensions.
4, technique of the present invention has that process velocity is fast, efficiency is high, processing cost is low and the advantage such as applicable industrialization production.
Claims (1)
1. on the end face of axial workpiece, process a technique for circular arc blind slot, it is characterized in that this technique comprises the following steps:
Centre bore is ground out at the both ends of a, the axial workpiece blank after heat treatment, obtains axial workpiece semi-finished product;
B, by axial workpiece semi-finished product clamping on cylindrical grinder, the two top centre bores that ground that withstand of cylindrical grinder, start cylindrical grinder, and the half-finished external diameter of axial workpiece is roughly ground to processing, obtain axial workpiece coarse fodder;
C, the external diameter of axial workpiece coarse fodder is carried out to fine grinding, obtain axial workpiece fine fodder;
D, use universal cutter grinder, position the end face of fine grinding axial workpiece fine fodder with the external diameter of the axial workpiece fine fodder after refining, this end face, for processing the end face of circular arc blind slot thereon, obtains axial workpiece finished product material;
E, by axial workpiece finished product material clamping on cylindrical grinder, cylindrical grinder uses pneumatic internal grinding head, with the external diameter centre of location after refining and using fine grinding after end face as axial location benchmark, on end face, process circular arc blind slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410110173.9A CN103921194A (en) | 2014-03-24 | 2014-03-24 | Process for machining arc blind grooves in end surfaces of shaft parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410110173.9A CN103921194A (en) | 2014-03-24 | 2014-03-24 | Process for machining arc blind grooves in end surfaces of shaft parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103921194A true CN103921194A (en) | 2014-07-16 |
Family
ID=51139714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410110173.9A Pending CN103921194A (en) | 2014-03-24 | 2014-03-24 | Process for machining arc blind grooves in end surfaces of shaft parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103921194A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106217186A (en) * | 2016-09-21 | 2016-12-14 | 苏州市海神达机械科技有限公司 | 360 ° rotate interior angle grinding attachment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3299580A (en) * | 1963-04-24 | 1967-01-24 | Ulvsunda Verkst Er Aktiebolag | Internal grinding machines |
| JP2005074584A (en) * | 2003-09-01 | 2005-03-24 | Toyoda Mach Works Ltd | Grooving method and numerical control device |
| CN102335760A (en) * | 2010-07-27 | 2012-02-01 | 上海锅炉厂有限公司 | Cut-off tool and method for machining end-face circular deep groove |
| CN202212839U (en) * | 2011-08-18 | 2012-05-09 | 烟台海德机床有限公司 | Milling machine spindle end surface slot grinding machine |
-
2014
- 2014-03-24 CN CN201410110173.9A patent/CN103921194A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3299580A (en) * | 1963-04-24 | 1967-01-24 | Ulvsunda Verkst Er Aktiebolag | Internal grinding machines |
| JP2005074584A (en) * | 2003-09-01 | 2005-03-24 | Toyoda Mach Works Ltd | Grooving method and numerical control device |
| CN102335760A (en) * | 2010-07-27 | 2012-02-01 | 上海锅炉厂有限公司 | Cut-off tool and method for machining end-face circular deep groove |
| CN202212839U (en) * | 2011-08-18 | 2012-05-09 | 烟台海德机床有限公司 | Milling machine spindle end surface slot grinding machine |
Non-Patent Citations (2)
| Title |
|---|
| 刘大全: "槽型零件喇叭口的误差分析", 《机械工艺师》, 31 December 1983 (1983-12-31) * |
| 孙强，机械工业出版社: "《职业技能训练用书》", 31 December 2010, article "内圆磨床主轴加工方法" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106217186A (en) * | 2016-09-21 | 2016-12-14 | 苏州市海神达机械科技有限公司 | 360 ° rotate interior angle grinding attachment |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140716 |
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| RJ01 | Rejection of invention patent application after publication |