CN102267066B - Machine tool for processing star wheel for single screw compressors - Google Patents

Machine tool for processing star wheel for single screw compressors Download PDF

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Publication number
CN102267066B
CN102267066B CN 201110189256 CN201110189256A CN102267066B CN 102267066 B CN102267066 B CN 102267066B CN 201110189256 CN201110189256 CN 201110189256 CN 201110189256 A CN201110189256 A CN 201110189256A CN 102267066 B CN102267066 B CN 102267066B
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China
Prior art keywords
star
workpiece
wheel
rotary disk
slide block
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Expired - Fee Related
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CN 201110189256
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Chinese (zh)
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CN102267066A (en
Inventor
黄锐
赵忖
李健
吴伟烽
余小玲
冯全科
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Xian Jiaotong University
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Xian Jiaotong University
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Priority to CN 201110189256 priority Critical patent/CN102267066B/en
Publication of CN102267066A publication Critical patent/CN102267066A/en
Application granted granted Critical
Publication of CN102267066B publication Critical patent/CN102267066B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses a machine tool for processing a star wheel for single screw compressors, and the machine tool comprises a machine tool body, a stand column, a disk type tool frame and a workpiece clamping device, wherein the stand column is arranged at the machine tool body, the disk type tool frame is arranged on the stand column, and the workpiece clamping device is arranged at the machine tool body; the disk type tool frame comprises a sliding plate, a tool rotary disk, a tool and a driver, the sliding plate is connected with the stand column and can move along the z direction, the tool rotary disk is connected with the sliding plate, the tool is arranged on the tool rotary disk, and the driver drives the tool to rotate; and the workpiece clamping device comprises a guide sleeve, a slide block, a revolving shaft and a workpiece holder, the guide sleeve is arranged on the machine tool body and can carry out horizontal movement along the x direction, the slide block is arranged on the guide sleeve and can carry out horizontal movement along the y direction, the revolving shaft is arranged on the slide block and can rotate along the circumferential direction thereof, and the workpiece holder is arranged on the revolving shaft and can carry out synchronous rotation with the revolving shaft. The machine tool disclosed by the invention has the characteristics of high processing efficiency and high machining precision, and can be used for producing high-precision multi-line (comprising single-line) envelope star wheels and multi-cylinder (comprising single-cylinder) envelope star wheels.

Description

A kind of machine tool for processing star wheel for single screw compressors
Technical field
The present invention relates to a kind of machining equipment, be particularly related to a kind of lathe for work sheet helical-lobe compressor star-wheel.
Background technology
Single screw compressor has been successfully applied to a plurality of fields such as refrigeration, air compressing, petrochemical industry.State's external enwergy manufacture order helical-lobe compressor tens companies such as American and Britain, Holland, Japan are arranged, in recent years, some producers of China also begin the manufacture order helical-lobe compressor, but the single screw compressor star-wheel of domestic production differs greatly with the external star-wheel of producing service life service life.The star-wheel odontotripsis is fast, and spider piece is short service life, has become the bottleneck problem of restriction China single screw compressor development.At present, generally believe that this is low the causing of machining accuracy owing to China's single helical-lobe compressor intermeshing pair, as long as the wear problem of Meshing Pair is solved, single screw compressor development space at home is huge.
The core component of single screw compressor is screw rod and the star-wheel that consists of Meshing Pair.Screw channel and star-wheel blade are the places of difficulty maximum in the processing of single screw compressor part.And the molded line of Meshing Pair has the greatest impact to processing method and difficulty of processing, and external published single screw compressor molded line has two kinds of lines enveloping and cylindrical envelopes, and domestic existing scholar proposes multi straight envelope molded line and polycylindser envelope molded line.The spider piece of the different molded line of efficient and accurate processing has become a difficult point of China's processing manufacturing industry.
Summary of the invention
Problem to be solved by this invention provides a kind of novel machining tool of single screw compressor star-wheel, but the star-wheel of processing linear envelope single screw compressor, cylindrical envelope single screw compressor and polycylindser envelope single screw compressor has that processing technology is simple, precision is high, fireballing characteristics.
For reaching above purpose, the present invention takes following technical scheme to be achieved:
A kind of machine tool for processing star wheel for single screw compressors, comprise lathe bed, lathe bed is provided with column and clamping workpiece mechanism, it is characterized in that, described column is provided with the slide plate that can vertically move in the z-direction, connect a rotary disk on the slide plate, do gyration along the rotary disk center of circle when rotary disk is done vertical movement with slide plate; This rotary disk links to each other with a toolframe, on the described toolframe driver is installed, and driver is connected with cutter by the axle of passing toolframe; Described clamping workpiece mechanism comprises and is arranged on the lathe bed the in the x-direction guide pin bushing of horizontal movement, be connected with the slide block that can move horizontally in the y-direction on the guide pin bushing, being connected with gyroaxis on the slide block can be along self circumferencial direction rotation, the work support of connection and gyroaxis synchronous rotary is installed workpiece on the gyroaxis on the work support.
In the such scheme, described rotary disk is provided with guide rail, and toolframe links to each other with rotary disk by this guide rail, and toolframe can move along this guide rail also locked.
Described cutter is dish milling cutter or emery wheel.Described driver is motor or electric main shaft.Described gyroaxis is the numerical control rotary axle.
Operation principle of the present invention is as follows:
The cutter rotary disk can be with slide block along column vertical motion on the z direction of principal axis, and toolframe is fixed on the rotary disk, and driver is installed on the toolframe, and cutter is connected with driver by axle.Workpiece (star-wheel) is fixed on the work support, and work support is fixed on the gyroaxis and by it and drives synchronous rotary, and star-wheel and gyroaxis can move in the x-y plane by slide block and guide pin bushing in rotation.During work, knife rest (cutter is housed) along the running fix of rotary disk guide rail and locking, is adjusted the height of knife rest on column, set the angle range of rotary disk, workpiece is positioned in y direction and gyroaxis direction.After finish the location, workpiece moves to Working position in the x-direction under star-wheel bracket base (guide pin bushing and slide block) drives, add man-hour, workpiece is in the x direction, the y direction, the gyroaxis circumferencial direction, cutter is in the z direction, the rotary disk circumferencial direction is carried out interlock, can realize the processing of a station of workpiece, workpiece is once advanced and retreat, can finish the one-sided profile processing of a rooted tooth, it is one-sided to process this tooth, the work support base drives workpiece and withdraws from Working position, and the numerical control rotary axle turns round a tooth according to equation graduation, and the star-wheel bracket base again drives workpiece and moves to Working position along direction and process, until all teeth are one-sided process after, star-wheel is carried out turn-over, and suppressed zero resets the angle range of cutter rotary disk again, can process star-wheel tooth opposite side according to above-mentioned steps, after all tooth both sides all processed, the star-wheel bracket base drove workpiece and withdraws from the x-direction Working position, and cutter quits work.
The invention has the advantages that:
1. but work sheet lines enveloping, multi straight envelope, cylindrical envelope and polycylindser envelope spider piece, and can satisfy the processing request of different-diameter cylindrical envelope spider piece.
2. adding only needs one man-hour cutter, and structure takes up room little.
3. working (machining) efficiency is high, and machining accuracy is high.
Description of drawings
Below in conjunction with the drawings and the specific embodiments the present invention is described in further detail.
Fig. 1 is the structure chart of a specific embodiment of the present invention.
Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 are Fig. 1 lathe cutter and star tooth contact state diagram (take two cylindrical envelopes as example) when processing polycylindser envelope profile.
Fig. 7 is the structure chart of another specific embodiment of the present invention.
The specific embodiment
Embodiment one
Referring to Fig. 1, the present embodiment lathe comprises lathe bed 1, the column 9 on the lathe bed and horizontal guide rail 2, and be installed in the dish-type toolframe 14 on the column 9 and be installed in clamping workpiece mechanism on the horizontal guide rail 2.The dish-type toolframe is installed on the upright guide rail 12 by slide plate 11, can do at vertical direction (22) (z direction) along upright guide rail 12 to move up and down.Cutter rotary disk 13 is housed on the slide plate 11, and cutter rotary disk 13 is done when moving up and down with slide plate 11 and is done gyration along direction (23).Cutter rotary disk 13 is provided with guide rail 10 in direction (22), and toolframe 14 is connected with rotary disk 13 by guide rail 10, and toolframe 14 can move along direction (22) also locked.Driver 16 is installed on the toolframe 14, is connected with cutter 15 by axle 17.Under the driving of driver 16, cutter 15 is around its axle axis rotation.Driver is motor or electric main shaft.
Horizontal guide rail 2 is provided with guide pin bushing 3, and guide pin bushing 3 can move back and forth on (19) (x direction) in the horizontal direction by horizontal guide rail 2.Guide pin bushing 3 is connected with slide block 4 by guide rail 5, and slide block 4 can move back and forth on (20) (y direction) in the horizontal direction by guide rail 5.Gyroaxis 6 is housed on the slide block 4, and gyroaxis 6 can rotate at its circumferencial direction (18) around himself axis, and can move in the x-y plane by slide block 4 and guide pin bushing 3.Work support 7 is housed on the gyroaxis, and work support 7 is fixed on the gyroaxis and is synchronized with the movement with gyroaxis.Gyroaxis is a numerical control rotary axle, can finely tune in its direction of rotation, emery wheel or dish milling cutter is installed as cutter on the work support 7.
Before the processing, at first need workpiece 8 is fixed on the work support 7, then toolframe 14 (installing cutter 15) is also locked along direction (22) running fix, adjust the height of toolframe 14 on column 9, set the angle range of cutter rotary disk 13, workpiece 8 is positioned in direction (20) and gyratory directions (18).After finished the location, workpiece 8 moved to Working position along direction (19) under guide pin bushing 3 and slide block 4 (star-wheel bracket base) drive, begin processing.
Add man-hour, workpiece is in direction (19), direction (20), direction (18), and cutter is carried out interlock in direction (21), direction (23).Workpiece is once advanced and retreat, and can finish the one-sided profile processing of monodentate.It is one-sided to process monodentate, and the star-wheel bracket base drives workpiece 8 and withdraws from Working position, and numerical control rotary axle 6 turns round a tooth according to equation graduation, and the star-wheel bracket base again drives workpiece 8 and moves to Working position along direction (19) and process.Until all teeth are one-sided process after, star-wheel is carried out turn-over, suppressed zero, reset the angle range of cutter rotary disk 13, can process star-wheel tooth opposite side according to above-mentioned steps, after all tooth both sides all processed, the star-wheel bracket base drove workpiece and withdraws from the x-direction Working position, and cutter quits work.
Take two cylindrical envelope Meshing Pair as example, the star-wheel flank is comprised of two faces of cylinder, between the star-wheel flank envelope cylinder, be connected for tangent plane between envelope cylinder and upper surface, envelope cylinder and the lower surface.Can be found out by Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, cutter is when processing star-wheel flank profile, need according to the position of polycylindser envelope Meshing Pair design parameter determination cutter in direction (21) and direction (22), and set cutter at the angle range of direction (23), 24,25,26,27 and 28 positions of star-wheel flank are processed successively.
Secondary and angular adjustment rotary disk 13 overlapping one that are assembled into of the second slide plate that the first slide plate is secondary, guide rail 12/ slide plate 11 consists of that the mechanism of enforcement cutter 15 displacements is made of guide rail 10/ toolframe 14, its relative motion separately is separate, and wherein the first slide plate pair is adjusted displacement and carried out locked by artificial or automatic adjusting mechanism under the lathe inactive state.The clamping workpiece mechanism that implements workpiece 8 displacements comprises that the 3rd slide plate the 4th slide plate pair and an angular adjustment gyroaxis 6 secondary, that guide rail 5/ guide pin bushing 3 consists of that horizontal guide rail 2/ guide pin bushing 3 consists of are assembled into one, and its each autokinesis is relatively independent.The second slide plate pair, the 3rd slide plate pair, the 4th slide plate pair and angular adjustment rotary disk 13, angular adjustment gyroaxis 6 link in workpiece process.
Dish-type toolframe 14 has tool setting mechanism, in order to determine the position of cutter 15 (21), (22) and (23) in the side, with this benchmark as the positioning of following process process cutter.
Embodiment two
Referring to Fig. 7, the difference of present embodiment lathe and embodiment one is that toolframe 14 directly is fixed on the rotary disk 13, and the direction in Fig. 1 (22) is without mobile.
Toolframe work rest in the movement of direction (22) can be by embodiment two substitutes in the movement of direction (19) and direction (20) among the embodiment one.In embodiment two process, work rest 7 is in direction (18), (19), (20), and toolframe 15 is carried out numerical control linked in direction (21), (23), also can realize the processing of different-diameter polycylindser envelope molded line.

Claims (1)

1. machine tool for processing star wheel for single screw compressors, comprise lathe bed, lathe bed is provided with column and clamping workpiece mechanism, it is characterized in that, described column is provided with the slide plate that can vertically move in the z-direction, connect a rotary disk on the slide plate, do gyration along the rotary disk center of circle when rotary disk is done vertical movement with slide plate; This rotary disk is provided with guide rail, and rotary disk links to each other by this guide rail with a toolframe, and toolframe moves also locked along this guide rail; On the described toolframe driver is installed, driver is connected with cutter by the axle of passing toolframe, and cutter is the dish milling cutter; Described clamping workpiece mechanism comprises and is arranged on the lathe bed the in the x-direction guide pin bushing of horizontal movement, be connected with the slide block that can move horizontally in the y-direction on the guide pin bushing, being connected with gyroaxis on the slide block can be along self circumferencial direction rotation, the work support of connection and gyroaxis synchronous rotary on the gyroaxis is installed the star-wheel workpiece on the work support; Add man-hour, the star-wheel workpiece is in described x direction, described y direction, star-wheel workpiece rotating direction, dish milling cutter knife rest integral body is being parallel to star-wheel axis of workpiece direction, dish milling cutter knife rest integral-rotation swaying direction implementation interlock, and the star-wheel workpiece is once advanced and retreat, and can finish the one-sided profile processing of monodentate; It is one-sided to process monodentate, guide pin bushing and slide block drive the star-wheel workpiece and withdraw from Working position, the gyroaxis of numerical control turns round a tooth according to equation graduation, guide pin bushing and slide block again drive the star-wheel workpiece and move to Working position along described x direction and process, until all teeth are one-sided process after, the star-wheel workpiece is carried out turn-over, suppressed zero, reset the angle range of cutter oscillation rotary disk, according to above-mentioned steps processing star-wheel tooth opposite side, after all tooth both sides all processed, guide pin bushing and slide block drove the star-wheel workpiece and withdraw from Working position along described x direction, and cutter quits work.
CN 201110189256 2011-07-07 2011-07-07 Machine tool for processing star wheel for single screw compressors Expired - Fee Related CN102267066B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110189256 CN102267066B (en) 2011-07-07 2011-07-07 Machine tool for processing star wheel for single screw compressors

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Application Number Priority Date Filing Date Title
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CN102267066B true CN102267066B (en) 2013-04-17

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102922015B (en) * 2012-10-31 2014-11-12 深圳振华亚普精密机械有限公司 Star wheel piece processing device and processing method thereof
CN104128669B (en) * 2014-07-24 2016-06-08 江苏汤臣汽车零部件有限公司 A kind of mileometer plane teeth is automatically positioned Milling Machine
CN104874866A (en) * 2014-12-13 2015-09-02 余姚市庆达机械有限公司 Grinding machine for star wheel teeth of single-screw air compressors
CN104569304B (en) * 2014-12-17 2016-08-24 浙江工业大学 A kind of bead study mechanism experimental provision
CN104551262A (en) * 2014-12-23 2015-04-29 湖南科技职业学院 Machine tool for machining single-screw rod compressor star wheel sheet

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CN101301690A (en) * 2008-06-11 2008-11-12 西安交通大学 Milling machine for processing single screw compressor rotor
EP2145723A1 (en) * 2008-07-17 2010-01-20 Gildemeister Italiana S.p.A. A cross slide for a turning machine
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