WO2008067730A1 - Procédé de traitement de bague interne et rectifieuse interne de celui-ci - Google Patents

Procédé de traitement de bague interne et rectifieuse interne de celui-ci Download PDF

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Publication number
WO2008067730A1
WO2008067730A1 PCT/CN2007/003468 CN2007003468W WO2008067730A1 WO 2008067730 A1 WO2008067730 A1 WO 2008067730A1 CN 2007003468 W CN2007003468 W CN 2007003468W WO 2008067730 A1 WO2008067730 A1 WO 2008067730A1
Authority
WO
WIPO (PCT)
Prior art keywords
workpiece
main shaft
inner hole
grinding
processing method
Prior art date
Application number
PCT/CN2007/003468
Other languages
English (en)
Chinese (zh)
Inventor
Hong Zhong
Original Assignee
Hong Zhong
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hong Zhong filed Critical Hong Zhong
Publication of WO2008067730A1 publication Critical patent/WO2008067730A1/fr

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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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/06—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces internally
    • B24B5/10—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces internally involving a horizontal tool spindle
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/40—Single-purpose machines or devices for grinding tubes internally

Definitions

  • the present invention relates to an inner circle processing method and an inner cylindrical grinding machine using the same, and a typical application thereof is a sleeve for processing a high precision sleeve type spindle unit.
  • the typical design of the sleeve type spindle unit is shown in Figure 1.
  • the high-precision sleeve type spindle unit has a high-precision inner hole at each end of the sleeve.
  • the coaxiality of the two inner holes is very high. High, usually below 0.01mm. Grinding is an important processing method for high-precision spindle sleeves. As shown in Fig. 2, since the conventional grinding machine has only one grinding head, the spindle unit must be clamped on the head frame, the spindle unit rotates, the grinding head feeds the knife, and the inner hole is machined first.
  • the grinding head retracts, the spindle The unit stops rotating, then the spindle unit is rotated 180 degrees to re-clamp, and then repeat the above operation to machine the inner hole at the other end. Since the central axis of the spindle unit must have a certain angular error during the two clamping, the inner hole at both ends must have a coaxiality error, and there are many factors affecting the angular error, such as the outer cylindrical cylindricity of the spindle unit, The random deviation generated during the clamping process, etc., is difficult to ensure the coaxiality of the inner holes at both ends of the sleeve.
  • a high-precision turntable (or a CNC turntable) has been used to mount the sleeve type spindle unit. After finishing the inner hole of one end, rotate the turntable 180 degrees so that the inner hole of the other end comes to the grinding head part, and then the inner hole of the other end is processed.
  • High-precision turntable (or CNC turntable) has its own corner error. Theoretically, there must be coaxiality error in the inner hole.
  • the coaxiality error depends on the manufacturing precision of the high-precision turntable (or CNC turntable), despite the current high-precision turntable ( Or the high manufacturing precision of the CNC rotary table can make the corner error of 15 seconds or less, but if the sleeve length is 350mm, the inner hole of the sleeve is coaxial.
  • the degree error ⁇ ⁇ is calculated as follows:
  • An object of the present invention is to provide an inner circle processing method and an inner cylindrical grinding machine using the same, which can eliminate the coaxiality error of the inner holes at both ends of the sleeve type spindle unit, and can simplify the processing flow and improve the processing efficiency.
  • the inner circle processing method of the present invention is carried out according to the following steps:
  • the workpiece is clamped on the hollow main shaft of the head frame;
  • a grinding head first feeds the knife from one side of the workpiece and processes the inner hole at one end. After the inner hole is finished, the grinding head retracts:
  • Another grinding head feeds from the other side of the workpiece, and the inner hole of the other end is machined. After the inner hole is processed, the hollow main shaft of the head frame stops rotating, and the workpiece is removed.
  • the inner cylindrical grinding machine using the inner circle processing method described above has two oppositely disposed grinding heads on the main guide rail of the bed, and a head main shaft hollow shaft with a workpiece that can be clamped between the two grinding heads.
  • the invention Since the invention has two oppositely disposed grinding heads, there is a headstock hollow main shaft between the two grinding heads for clamping the workpiece.
  • the operation is as follows: the workpiece is clamped on the hollow main shaft of the head frame, the hollow main shaft of the head frame starts to rotate, and a grinding head first feeds the blade and processes the same
  • the inner hole at one end, after machining, the grinding head retracts; the other grinding head enters the knife, and the other end is processed
  • Hole the inner hole is processed, the hollow spindle of the head frame stops rotating, the workpiece is removed, and the operation is completed.
  • two inner holes can be processed in one clamping, and the workpiece is not required to be rotated by the ISO degree, so that when the two inner holes are machined, the workpiece rotates around the same rotation axis, and there is no possibility of coaxiality error. .
  • the axis of rotation is inconsistent with the central axis of the workpiece, and the inner holes at both ends are strictly aligned with the axis of rotation as the common central axis, and no coaxiality error occurs between the two inner holes.
  • the use of the present invention to machine the inner bores of the sleeve-type workpiece does not result in other processing accuracy requirements being insufficient.
  • the rotation error of the grinding head will cause the inner hole to be elliptical; the straightness error of the reciprocating pass will cause the inner hole to be tapered; the accuracy of the reading of the feed motion will cause the dimensional error of the inner hole.
  • the hollow main shaft of the head frame can adopt the existing high-spinning precision static pressure spindle, and its rotation precision can reach below 0.003mm; the straightness of the reciprocating cutter is that the straightness of the guide rail has reached below 0.005mmyi 000mni; the reading accuracy of the feed motion Has reached 0.00imm.
  • the invention can be used in conjunction with the advanced techniques described above to ensure that other processing accuracy requirements are met.
  • the workpiece is not required to be transferred, thereby saving the operation procedure of the workpiece unloading, clamping and coaxiality adjustment, so that the operation is simplified and the work efficiency can be remarkably improved.
  • the invention can also be used to machine other workpieces that include an inner circle that requires a high degree of concentricity.
  • Figure 1 is a schematic view of a sleeve type spindle unit
  • FIG. 2 is a schematic view showing a processing method of a conventional sleeve type spindle unit
  • Figure 3 is a schematic view showing the processing method of the sleeve type spindle unit using the present invention
  • Figure 4 is a horizontal internal grinding machine incorporating the present invention
  • Figure 5 is a vertical internal cylindrical grinding machine incorporating the present invention
  • Figure 6 is a grinding machine retrofitted on an existing grinding machine using the present invention.
  • the present invention comprises two grinding heads 1 disposed opposite each other with a headstock hollow main shaft 2 between which the workpiece can be clamped between the two grinding heads.
  • the high-precision precision hydrostatic spindle is preferred.
  • the high-spinning precision hydrostatic spindle is a prior art with a rotation accuracy of less than 0.003 mm.
  • the internal cylindrical grinding machine of the present invention can be either horizontal (Fig. 4), vertical (Fig. 5) or modified by an existing grinding machine (Fig. 6).
  • the headstock hollow main shaft 2 can also be selected from a rolling bearing main shaft or a plain bearing main shaft, and can also achieve the object of the present invention.
  • the invention processes the inner circle of the workpiece according to the following steps:
  • the workpiece is clamped on the hollow main shaft 2 of the head frame;
  • a grinding head i first feeds the knife from one side of the workpiece and processes the inner hole at one end. After the inner hole is finished, the grinding head retracts.
  • Another grinding head 1 Feed the knife from the other side of the workpiece and machine the inner hole at the other end. After the inner hole is finished, the hollow spindle of the head frame stops rotating and the workpiece is removed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

L'invention concerne un procédé de traitement de bague interne utilisé pour traiter une unité d'arbre principal de type manchon avec une précision élevée. Une unité d'arbre principal à tête de rectification est disposée respectivement de chaque côté d'une unité d'arbre principal de tête de tour pour maintenir les pièces à travailler. Ceci permet de réaliser un traitement sur chaque côté et de ne devoir serrer la pièce à travailler qu'une seule fois, de façon à améliorer la possibilité d'aligner très précisément le trou interne des deux extrémités du manchon.
PCT/CN2007/003468 2006-12-07 2007-12-06 Procédé de traitement de bague interne et rectifieuse interne de celui-ci WO2008067730A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2006101240718A CN1974126A (zh) 2006-12-07 2006-12-07 内圆加工方法及使用该方法的内圆磨床
CN200610124071.8 2006-12-07

Publications (1)

Publication Number Publication Date
WO2008067730A1 true WO2008067730A1 (fr) 2008-06-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/003468 WO2008067730A1 (fr) 2006-12-07 2007-12-06 Procédé de traitement de bague interne et rectifieuse interne de celui-ci

Country Status (2)

Country Link
CN (1) CN1974126A (fr)
WO (1) WO2008067730A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103406807A (zh) * 2013-05-31 2013-11-27 江苏华阳管业股份有限公司 一种直管内壁打磨装置
CN103894896A (zh) * 2014-04-08 2014-07-02 常熟市创新陶瓷有限公司 一种陶瓷套管内孔磨削装置
CN103659499B (zh) * 2012-09-21 2018-01-12 陈松涛 一种钢管内表面磨削方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1974126A (zh) * 2006-12-07 2007-06-06 钟洪 内圆加工方法及使用该方法的内圆磨床
CN102229103B (zh) * 2011-05-18 2013-01-23 昆山长鹰硬质合金有限公司 内圆小孔研磨磨床
CN105033794A (zh) * 2015-09-01 2015-11-11 李建阳 双头内孔磨床
CN105397636B (zh) * 2015-12-09 2017-10-24 大连理工大学 一种薄壁筒类工件内圆磨削径向定位单元及定位装卡装置
CN109866106A (zh) * 2019-03-05 2019-06-11 哈尔滨汽轮机厂有限责任公司 一种橡胶轴瓦的夹具及利用夹具加工橡胶轴瓦内孔的方法
CN113334200A (zh) * 2021-07-19 2021-09-03 上海唯赛勃环保科技股份有限公司 玻璃钢压力容器膜壳接口加工装置及其加工方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU542622A1 (ru) * 1971-04-05 1977-01-15 Ленинградское Особое Конструкторское Бюро Автоматов И Револьверных Станков Способ шлифовани центровых отверстий
JPH11320360A (ja) * 1998-05-19 1999-11-24 Super Silicon Kenkyusho:Kk ワークの両面同時加工方法および両面同時加工装置
DE202006000290U1 (de) * 2006-01-09 2006-03-16 Sieber Forming Solutions Gmbh Universalschleifmaschine
CN1974126A (zh) * 2006-12-07 2007-06-06 钟洪 内圆加工方法及使用该方法的内圆磨床
CN200988151Y (zh) * 2006-12-11 2007-12-12 钟洪 一种内圆磨床

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU542622A1 (ru) * 1971-04-05 1977-01-15 Ленинградское Особое Конструкторское Бюро Автоматов И Револьверных Станков Способ шлифовани центровых отверстий
JPH11320360A (ja) * 1998-05-19 1999-11-24 Super Silicon Kenkyusho:Kk ワークの両面同時加工方法および両面同時加工装置
DE202006000290U1 (de) * 2006-01-09 2006-03-16 Sieber Forming Solutions Gmbh Universalschleifmaschine
CN1974126A (zh) * 2006-12-07 2007-06-06 钟洪 内圆加工方法及使用该方法的内圆磨床
CN200988151Y (zh) * 2006-12-11 2007-12-12 钟洪 一种内圆磨床

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WANG H. AND XU X.: "Probimg for Workpiece Spindle of Double-head Internal Grinding and CAD", LUBRICATION ENGINEERING, no. 5, October 1996 (1996-10-01), pages 45 - 49 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103659499B (zh) * 2012-09-21 2018-01-12 陈松涛 一种钢管内表面磨削方法
CN103406807A (zh) * 2013-05-31 2013-11-27 江苏华阳管业股份有限公司 一种直管内壁打磨装置
CN103894896A (zh) * 2014-04-08 2014-07-02 常熟市创新陶瓷有限公司 一种陶瓷套管内孔磨削装置
CN103894896B (zh) * 2014-04-08 2016-08-17 常熟市创新陶瓷有限公司 一种陶瓷套管内孔磨削装置

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Publication number Publication date
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