CN201287270Y - Mandrel body for lathe work of pressure booster primary shaft - Google Patents

Mandrel body for lathe work of pressure booster primary shaft Download PDF

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Publication number
CN201287270Y
CN201287270Y CNU2008202188814U CN200820218881U CN201287270Y CN 201287270 Y CN201287270 Y CN 201287270Y CN U2008202188814 U CNU2008202188814 U CN U2008202188814U CN 200820218881 U CN200820218881 U CN 200820218881U CN 201287270 Y CN201287270 Y CN 201287270Y
Authority
CN
China
Prior art keywords
mandrel
plunger
hole
main shaft
thin walled
Prior art date
Application number
CNU2008202188814U
Other languages
Chinese (zh)
Inventor
赵文浩
刘玲
Original Assignee
中国北车集团大连机车研究所有限公司
大连经济技术开发区泽通机械有限公司
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.)
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Application filed by 中国北车集团大连机车研究所有限公司, 大连经济技术开发区泽通机械有限公司 filed Critical 中国北车集团大连机车研究所有限公司
Priority to CNU2008202188814U priority Critical patent/CN201287270Y/en
Application granted granted Critical
Publication of CN201287270Y publication Critical patent/CN201287270Y/en

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Abstract

A mandrel body applied in booster spindle turning process is characterized in that the center hole of the mandrel body can be plugged with a positioning thin-wall sleeve in which a booster spindle can be inserted; the positioning thin-wall sleeve is sheathed by a liquid plastic ring at the part corresponding to the reference plane of the spindle; the mandrel body is provided with a plunger hole and a screw hole on radius at one axis line; a plunger is provided in the plunger hole for pressing the liquid plastic ring; a pressing screw is provided in the screw hole and can be screwed to press the plunger; and the mandrel body is provided with a block and a clamping bolt thereof. The mandrel body has the advantages that the clamp is contacted with the cylinder face of an object element and the contact face can reach 80% of the length of the whole thin wall, to reduce positioning error, improve clamp force, improve machining accuracy, and confirm the misalignment of the processed surface at 0.002-0.003mm; the mandrel body can avoid using percent meter for alignment to reduce auxiliary time by 80%; the mandrel body has easy manufacture, easy operation and improved production efficiency, while production cost is reduced by 20-30% in average than common clamps.

Description

Booster main shaft turning processing is axis body diligently
Technical field:
The utility model relates to a kind of booster main shaft turning processing axis body diligently, belongs to the Machining Technology field of booster parts.
Background technology:
Main shaft is one of vitals on the high speed internal combustion engine vehicle supercharger, its two ends connect compressor active wheel and wheel disk of turbine, key components and parts as whole rotor assembly, overall performance to booster has a significant impact, its accurate to dimension and surface roughness are had relatively high expectations, especially the circle of whirlpool end aperture is beated and the symmetry of pressure side keyway, and this just need select for use rational anchor clamps with the assurance positioning accuracy in its turning process.The material of main shaft is the 42CrMo steel alloy, and part requires whirlpool end ф 25mm aperture to beat with respect to the circle of outer round surface and is not more than 0.005mm.Add man-hour the earliest, adopt the direct clamping benchmark of engine lathe chuck outer round surface, the method that the laggard driving of centering is cut.This method often occurs beating bigger than normal and the phenomenon that makes dimension overproof is swung in the end, mainly is overproof at random, and overproof amount is in 0.01~0.02mm scope.
We have improved processing scheme for this reason, adopt engine lathe chuck clamping one benchmark outer round surface, and the follow-rest location clamps another benchmark outer round surface, and the laggard driving of centering is cut.This method has had large increase than preceding a kind of method on machining accuracy, generally can both reach the jerk value 0.005mm of drawing requirement, but because this operation is processed, the operator needs centering and positioning and clamping to each part on engine lathe, labour intensity is big, and production efficiency is low.
Summary of the invention
The purpose of this utility model is to overcome weak point in the prior art, and the booster main shaft turning processing motive that a kind of clamping force is big, positioning accuracy is high, convenient to use axis body is provided.
This booster main shaft turning processing structure of axis body diligently is: can insert the location thin walled cylinder body in the centre bore of axle body, can insert the booster main shaft in the thin walled cylinder body of location, position corresponding to the main shaft datum level on the thin walled cylinder body of location is set with the liquid plastics ring, the axle body radially is provided with the plunger hole and the screw hole of same axis, be provided with in the plunger hole and can tighten the forcing screw that plunger is exerted pressure in the screw hole the plunger of liquid plastics circulating application pressure.Also be provided with on the axle body and stop up and holding screw.
In order to enhance productivity, we improve this turning clamp for machining like this, directly process ф 25mm aperture behind the clamping workpiece on Digit Control Machine Tool.The utility model is selected liquid plastic fixture for use, so-called liquid plastic fixture is an Incoercibility of utilizing liquid plastics, when liquid plastics is exerted pressure, liquid plastics is about to power and passes to thin walled cylinder body, make thin walled cylinder body produce uniform radial elastic distortion; the gap of thin walled cylinder body and workpiece reduces gradually, till workpiece centering clamps.
These anchor clamps are applicable to engine lathe or numerically controlled lathe, workpiece is located and is clamped with a thin walled cylinder body, the clamping force point of liquid plastics concentrates on two datum levels, and guarantee the counterweight of this frock, prevent to cause process excursion because of the counterweight inequality, cylindrical central sleeve can be changed with the main shaft of different model in addition, has strengthened versatility.Its operation principle and method of operating are: at first unclamp the forcing screw of axle body, select for use suitable thin walled cylinder body to be installed in the axle body centre bore, adjust the gap of sleeve and axle body endoporus; Next disassembles the chuck of lathe, and axle body and function screw is fixed on the packing of lathe; Put into main shaft then, insert, keep the whirlpool end and want the position of machining hole in the outside by the pressure side of main shaft; Tighten forcing screw at last, make plunger compress liquid plastics, thrust is delivered on the thin walled cylinder body with workpiece pressing.The factor that influences whole anchor clamps thrust and positioning accuracy is: the 1. selection of thin walled cylinder body material, the radially maximum maximal clearance value that allows deflection to be greater than workpiece and thin walled cylinder body of thin walled cylinder body.2. thin walled cylinder body deformed area thickness can draw optimum thickness by calculating.3. the hardness of thin walled cylinder body should be 38HRC one 42HRC.4. pressure plunger diameter ф D, the liquid plastics volume that is arranged during the plunger pressurization should equate with thin walled cylinder body strain volume.5. forcing screw screws at most and buckles determining of number and pitch.After fully taking into account above factor, the working (machining) efficiency of these anchor clamps was significantly improved with respect to former plain clamp.
Compared with prior art the utility model has the advantages that: anchor clamps contact with the part to be processed face of cylinder, contact-making surface can reach 80% of whole thin-walled length, and position error is little, and clamping force is big, the machining accuracy height, the nonconcentricity that can guarantee surface to be machined is at 0.002mm-0.003mm; Do not need the dial gauge centering, can reduce about 80% non-cutting time; Make easily, manufacturing cost is than the average 20%-30% that reduces of plain clamp, and is easy to operate, improved production efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Now the utility model is described in further detail in conjunction with the accompanying drawings: insert location thin walled cylinder body 5 in the centre bore of axle body 2, insert booster main shaft 6 in the location thin walled cylinder body 5, position corresponding to the main shaft datum level on the thin walled cylinder body 5 of location is set with liquid plastics ring 4, be provided with the plunger 3 that the liquid plastics circulating application is pressed in the plunger hole, tighten the forcing screw 1 that plunger is exerted pressure in the screw hole.Also be provided with obstruction 8 and holding screw 7 thereof on the axle body.

Claims (2)

1 one kinds of booster main shaft turning processing motive axis bodies, it is characterized in that: can insert the location thin walled cylinder body in the centre bore of axle body, can insert the booster main shaft in the thin walled cylinder body of location, position corresponding to the main shaft datum level on the thin walled cylinder body of location is set with the liquid plastics ring, the axle body radially is provided with the plunger hole and the screw hole of same axis, be provided with in the plunger hole and can tighten the forcing screw that plunger is exerted pressure in the screw hole the plunger of liquid plastics circulating application pressure.
2 booster main shaft turning processing according to claim 1 are axis body diligently, it is characterized in that: also be provided with on the axle body and stop up and holding screw.
CNU2008202188814U 2008-10-31 2008-10-31 Mandrel body for lathe work of pressure booster primary shaft CN201287270Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008202188814U CN201287270Y (en) 2008-10-31 2008-10-31 Mandrel body for lathe work of pressure booster primary shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008202188814U CN201287270Y (en) 2008-10-31 2008-10-31 Mandrel body for lathe work of pressure booster primary shaft

Publications (1)

Publication Number Publication Date
CN201287270Y true CN201287270Y (en) 2009-08-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008202188814U CN201287270Y (en) 2008-10-31 2008-10-31 Mandrel body for lathe work of pressure booster primary shaft

Country Status (1)

Country Link
CN (1) CN201287270Y (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102049695A (en) * 2010-11-10 2011-05-11 西安航天动力机械厂 Processing method and technological equipment for cylindrical thin and long thin-walled workpiece
CN102615520A (en) * 2012-03-30 2012-08-01 浙江大学宁波理工学院 Composite material thin-walled piece clamp and method for processing composite material by using clamp
CN103028987A (en) * 2012-12-03 2013-04-10 西安航天动力机械厂 Numerical control processing fixture for two perpendicularly-crossed shafts
CN103639940A (en) * 2013-12-19 2014-03-19 吉林大学 Fluid plastic thin-wall elastic sleeve clamp with magnetic isolation performance
CN105127779A (en) * 2015-08-18 2015-12-09 洛阳轴研科技股份有限公司 Cage pocket machining device
CN105690145A (en) * 2016-03-28 2016-06-22 苏州市合叶精密机械有限公司 Drilling jigs for elliptical cam
CN108519275A (en) * 2018-03-15 2018-09-11 中国工程物理研究院化工材料研究所 A kind of small tonnage multi-path pressure load testing machine
CN109372875A (en) * 2018-11-20 2019-02-22 中国航发贵州黎阳航空动力有限公司 A kind of big pressure nut of micro- torque

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102049695A (en) * 2010-11-10 2011-05-11 西安航天动力机械厂 Processing method and technological equipment for cylindrical thin and long thin-walled workpiece
CN102049695B (en) * 2010-11-10 2013-01-02 西安航天动力机械厂 Processing method and technological equipment for cylindrical thin and long thin-walled workpiece
CN102615520A (en) * 2012-03-30 2012-08-01 浙江大学宁波理工学院 Composite material thin-walled piece clamp and method for processing composite material by using clamp
CN103028987A (en) * 2012-12-03 2013-04-10 西安航天动力机械厂 Numerical control processing fixture for two perpendicularly-crossed shafts
CN103028987B (en) * 2012-12-03 2015-05-13 西安航天动力机械厂 Numerical control processing fixture for two perpendicularly-crossed shafts
CN103639940A (en) * 2013-12-19 2014-03-19 吉林大学 Fluid plastic thin-wall elastic sleeve clamp with magnetic isolation performance
CN103639940B (en) * 2013-12-19 2015-06-17 吉林大学 Fluid plastic thin-wall elastic sleeve clamp with magnetic isolation performance
CN105127779A (en) * 2015-08-18 2015-12-09 洛阳轴研科技股份有限公司 Cage pocket machining device
CN105690145A (en) * 2016-03-28 2016-06-22 苏州市合叶精密机械有限公司 Drilling jigs for elliptical cam
CN108519275A (en) * 2018-03-15 2018-09-11 中国工程物理研究院化工材料研究所 A kind of small tonnage multi-path pressure load testing machine
CN108519275B (en) * 2018-03-15 2020-09-01 中国工程物理研究院化工材料研究所 Small-tonnage multichannel pressure loading test device
CN109372875A (en) * 2018-11-20 2019-02-22 中国航发贵州黎阳航空动力有限公司 A kind of big pressure nut of micro- torque

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090812

Termination date: 20111031