CN205342586U - Fine special fixture that mills of high speed of small -size accurate work piece - Google Patents
Fine special fixture that mills of high speed of small -size accurate work piece Download PDFInfo
- Publication number
- CN205342586U CN205342586U CN201620130201.8U CN201620130201U CN205342586U CN 205342586 U CN205342586 U CN 205342586U CN 201620130201 U CN201620130201 U CN 201620130201U CN 205342586 U CN205342586 U CN 205342586U
- Authority
- CN
- China
- Prior art keywords
- closing sleeve
- workpiece
- clamp body
- work piece
- face
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model belongs to the technical field of anchor clamps technique for the machining and specifically relates to a fine special fixture that mills of high speed of small -size accurate work piece. The utility model discloses a vacuum chuck installs on five super precision machine tool's of CNC of nanotech 350FG main shaft, comprises the anchor clamps body, closing sleeve, interchangeable positioning core axle, rhombus locating pin, and the interchangeable positioning core axle uses with the work piece is supporting, the closing sleeve with the cooperation of movable fit concern the suit on the disc base, with the fix with screw on the anchor clamps body. The utility model discloses a fine special fixture that mills of high speed of small -size accurate work piece part, simple structure, the clamping is reliable. Carry out turning according to work piece size and cooperation requirement to interchangeable setting spindle, improved the positioning accuracy of an anchor clamps body work sheet work piece greatly. Because a sleeve side end face and the face of cylinder are equipped with a plurality of processing windows, the milling process in a plurality of position in a side end face and the face of cylinder that only clamping of need just can completed workpiece has improved machining efficiency on the basis of assurance machining precision.
Description
One, technical field
This utility model relates to machining clamp art, the high speed minuteness milling special fixture of especially a kind of miniature precision workpiece.
Two, background technology
Micrometer-Nanometer Processing Technology is minuteness milling technology especially, has very important effect in the processing and manufacturing of micro parts.In order to improve working (machining) efficiency and obtain higher crudy, the mode of plan employing high speed minuteness milling completes the processing on multiple surfaces of certain miniature precision workpiece.Owing to workpiece size is less, clamping more difficult, important feature required precision is significantly high, and requires to process on Nanotech350FG five axle CNC ultra-precision machine tool, and this lathe can carry out ultraprecise car, milling, mill processing.Plain clamp inefficiency, it is impossible to meet machining accuracy, it is therefore desirable to design a kind of suitable in this lathe and the special fixture that can reliably and accurately clamp workpiece, uses less clamping times to complete the processing of multiple position, improves working (machining) efficiency.
Three, summary of the invention
The purpose of this utility model is to overcome the machining accuracy that the miniature precision work pieces process technique having high-precision requirement exists poor, the defect that working (machining) efficiency is low, it is provided that the high speed minuteness milling special fixture of a kind of miniature precision workpiece.
This utility model is arranged on the main shaft of Nanotech350FG five axle CNC ultra-precision machine tool by vacuum cup, and its technical scheme is made up of clamp body, closing sleeve, interchangeable positioning core axle, diamond positioning pin；
Clamp body is by disc base, and the closing sleeve location shaft shoulder, step surface, screwed hole are constituted, and arrange workpiece location plane and centre bore at top, fixedly mount interchangeable positioning core axle in centre bore, and interchangeable positioning core axle and workpiece support the use；Workpiece location plane arranges dowel hole, the position of dowel hole is corresponding with the position of the blind hole of workpiece end face, fixed installation diamond positioning pin in dowel hole, workpiece location plane is connected with the closing sleeve location shaft shoulder, and the diameter of the closing sleeve location shaft shoulder matches with the external diameter of work piece；Uniform 8 screwed holes on clamp body step surface；
The cylinder that closing sleeve is inner chamber to match with the clamp body closing sleeve location shaft shoulder, bottom arranges flange chassis, and flange chassis is evenly equipped with 4 through holes, any 4 Corresponding matchings in 8 screwed holes uniform with on clamp body step surface；Top is provided with the hole of chamfering and holds the process window of cutter as processing work end face；Aperture with chamfered bore constitutes compacting ring with the poor of closing sleeve upper lumen diameter；The process window holding cutter that the position in uniform 4 holes to be processed with on work piece periphery matches on the cylinder of closing sleeve compacting ring bottom；
Closing sleeve is sleeved on disc base with the matching relationship of dynamic cooperation, is screwed on clamp body.
The mechanism of invention: this utility model is in order to improve machining accuracy and the production efficiency of miniature precision workpiece, for processing core with through hole, the special fixture that end face designs with the miniature workpiece of blind hole.Before using, this utility model is fixed on the work spindle of lathe, interchangeable positioning core axle is installed in clamp body centre bore, adjust this utility model clamp body axle center corresponding with the axle center of machine tool chief axis consistent.Interchangeable positioning core axle and workpiece support the use, in order to ensure that positioning core axle and machine tool chief axis reach sufficiently high axiality, improve the positioning precision of workpiece, interchangeable positioning core axle leaves a small amount of allowance, before workpiece is installed, actual size according to inner hole of workpiece, according to the requirement coordinated, the interchangeable positioning core axle of precision turning in place requires size to cooperation；Then diamond positioning pin is loaded in dowel hole.The central through hole of workpiece is loaded the interchangeable positioning core axle of clamp body, the blind hole of workpiece is loaded the diamond positioning pin of clamp body；Then closing sleeve is installed on clamp body, uniformly it is fastened on clamp body with soket head cap screw, by the compacting ring of closing sleeve, workpiece is clamped, start lathe workpiece is processed, after one work pieces process completes, turning used interchangeable mandrel being taken off from clamp central hole, use the interchangeable positioning core axle leaving certain allowance to be replaced, the processing for next part workpiece is prepared.
The beneficial effects of the utility model: this utility model is the high speed minuteness milling special fixture of miniature precision workpiece part, and simple in construction, clamping is reliable.With coordinating requirement, interchangeable apotting spindle is carried out turning according to workpiece size, substantially increase clamp body and process the positioning precision of single workpiece.Owing to sleeve one side end face and the face of cylinder are provided with multiple process window, only need clamped one time just can complete the Milling Process in the multiple orientation in a side end face and the face of cylinder of workpiece, the basis of machining accuracy improves working (machining) efficiency ensureing.
Four, accompanying drawing explanation
Fig. 1 is the partial sectional view of this utility model overall structure schematic diagram；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the half sectional view of clamp body structural representation of the present utility model；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the sectional view of closing sleeve structural representation of the present utility model.
Accompanying drawing labelling:
1, clamp body 1-1, workpiece location plane 1-2, centre bore 1-3, dowel hole 1-4, closing sleeve position shaft shoulder 1-5, step surface 1-6, screwed hole 1-7, disc base 2, closing sleeve 2-1, flange chassis 2-2, side process window 2-3, top process window 2-4, compacting ring 2-5, through hole 2-6, closing sleeve inner chamber 3, interchangeable positioning core axle 4, diamond positioning pin 5, soket head cap screw 6, workpiece
Five, detailed description of the invention
Of the present utility model specific implementation process is described in detail in conjunction with accompanying drawing.
As it is shown in figure 1, be provided with the cylinder of through hole centered by workpiece 6, processing has blind hole in advance on one face, it is necessary on its end face and periphery, processing is implemented in equally distributed eight orientation, and machining accuracy reaches micron order.
This utility model is arranged on the main shaft of Nanotech350FG five axle CNC ultra-precision machine tool by vacuum cup, is made up of clamp body 1, closing sleeve 2, interchangeable positioning core axle 3, diamond positioning pin 4；
Clamp body 1 is by disc base 1-7, closing sleeve location shaft shoulder 1-4, step surface 1-5, screwed hole 1-6 is constituted, workpiece location plane 1-1 and centre bore 1-2 is set at top, interchangeable positioning core axle 3 is fixedly mounted in centre bore 1-2, interchangeable positioning core axle 3 leaves a small amount of allowance, the internal diameter of the diameter after turning and workpiece 6 matches, workpiece location plane 1-1 arranges dowel hole 1-3, the position of dowel hole 1-3 is corresponding with the position of the blind hole of workpiece end face, fixed installation diamond positioning pin 4 in dowel hole 1-3, workpiece location plane 1-1 is connected with closing sleeve location shaft shoulder 1-4；Uniform 8 screwed hole 1-6 on clamp body step surface 1-5.
Closing sleeve 2 is inner chamber and the clamp body closing sleeve location shaft shoulder 1-4 cylinder matched, and bottom arranges flange chassis 2-1, and flange chassis 2-1 is evenly equipped with 4 through hole 2-5, with 4 Corresponding matchings in 8 screwed hole 1-6 uniform on clamp body step surface 1-5；Top is provided with the hole of chamfering and holds the top process window 2-3 of cutter as processing work end face；Aperture with chamfered bore constitutes compacting ring 2-4 with the poor of closing sleeve 2 upper lumen diameter；The plane that compacting ring 2-4 contacts with workpiece, the bottom surface distance to flange chassis 2-1 is less than the compacted workpiece upper surface distance to step surface 1-5, in order to ensure the clamping amount of closing sleeve 2；The process window 2-2 holding cutter that the position in uniform 4 holes to be processed with on work piece periphery matches on the cylinder of closing sleeve compacting ring bottom；
Closing sleeve 2 is sleeved on disc base 1-7 with the matching relationship of dynamic cooperation, is fixed on clamp body with screw 5.
Before using this utility model fixture, it is necessary to first it is assembled and turning pretreatment.The preprocessing process of this utility model fixture is as follows, clamp body disc base 1-7 is installed on the main shaft of Nanotech350FG five axle CNC ultra-precision machine tool by vac sorb effect, the interchangeable positioning core axle 3 leaving a small amount of allowance is fixedly installed in clamp body centre bore 1-2, adjusts this utility model clamp body axle center corresponding with machine tool chief axis axle center consistent.Before workpiece 6 is installed, first the actual size of workpiece 6 endoporus matched with interchangeable positioning core axle 3 is measured, hole size according to workpiece 6, according to the required precision coordinated, determining the processing capacity of interchangeable positioning core axle 3, on Nanotech350FG five axle CNC ultra-precision machine tool, precision turning in place interchangeable positioning core axle 3 to quality of fit requires size, after ensureing that interchangeable positioning core axle 3 is equipped with workpiece 6 with this, there is high positioning precision.Again diamond positioning pin 4 is loaded in dowel hole 1-3, complete the pretreatment of this utility model fixture to this.The installation process of workpiece 6 is as follows, and the central through hole of workpiece 6 is loaded the interchangeable positioning core axle 3 through turnery processing, and the blind hole on workpiece 6 end face loads the diamond positioning pin 4 of clamp body, plays positioning action.Closing sleeve 2 is placed in above workpiece, closing sleeve through clamp body 1 positions shaft shoulder 1-4 and inserts clamp body 1, the compacting ring 2-4 of closing sleeve 2 inside top and the end contact of workpiece 6, there is certain space as clamping gap in the flange chassis 2-1 of the closing sleeve 2 and step surface 1-5 of clamp body 1, uniformly tighten four soket head cap screws 5 and closing sleeve 2 is arranged on clamp body 1, the compacting ring 2-4 of closing sleeve inside top extrudes the end face of workpiece 6, it is achieved the axial grip of workpiece 6.On closing sleeve 2 side and top is provided with process window, thus needs the part of processing to come out workpiece, and leaves certain space to cutter.The workpiece 6 end face course of processing is as follows, starts lathe, is arranged on cutter spindle by milling cutter, adjusts milling cutter axle center consistent with machine tool chief axis axle center, is moved to by milling cutter in the top process window 2-3 of closing sleeve 2, the end face of workpiece 6 is carried out Milling Process.The workpiece 6 periphery course of processing is as follows, by cutter spindle relative to workpiece half-twist, makes milling cutter towards the periphery of workpiece 6.Adjusting machine tool chief axis makes the periphery process window 2-2 axle center on closing sleeve 2 consistent with milling cutter axle center, is moved to by cutter in this periphery process window 2-2 and the face of cylinder of workpiece 6 is carried out Milling Process.After this position machines, milling cutter returns to original position, machine tool chief axis drives fixture to rotate 90 ° along its axis, and the 2nd periphery process window 2-2 on the cylinder of closing sleeve 2 turns to just position to milling cutter, is moved to by milling cutter and carries out Milling Process inside this process window.Repeat aforesaid operations twice, the processing of four the orientation structures of periphery to workpiece 6 can be completed.Then, screw out 4 soket head cap screws 5, closing sleeve 2 is rotated about the axis thereof 45 °, 4 soket head cap screws 5 are uniformly screwed in other 4 screwed hole 1-6 of clamp body 1 simultaneously, tighten soket head cap screw 5 simultaneously, clamp workpiece 6.The ibid course of processing, moves in 4 periphery process window 2-2 of closing sleeve 2 successively by milling cutter, can to the Milling Process providing four orientation of workpiece 6 periphery residue.After milling operation completes, unload soket head cap screw 5, take out closing sleeve 2, workpiece 6 is taken out, one-time positioning can complete a side end face of workpiece 6 and the processing in 8 orientation of periphery.After processing one, use the interchangeable positioning core axle leaving a small amount of allowance to replace turning the positioning core axle used, can be that the processing of next workpiece is prepared.
Claims (1)
1. a high speed minuteness milling special fixture for miniature precision workpiece, is arranged on the main shaft of Nanotech350FG five axle CNC ultra-precision machine tool by vacuum cup, it is characterized by be made up of clamp body, closing sleeve, interchangeable positioning core axle, diamond positioning pin；
Clamp body is by disc base, and the closing sleeve location shaft shoulder, step surface, screwed hole are constituted, and arrange workpiece location plane and centre bore at top, fixedly mount interchangeable positioning core axle in centre bore, and interchangeable positioning core axle and workpiece support the use；Workpiece location plane arranges dowel hole, the position of dowel hole is corresponding with the position of the blind hole of workpiece end face, fixed installation diamond positioning pin in dowel hole, workpiece location plane is connected with the closing sleeve location shaft shoulder, and the diameter of the closing sleeve location shaft shoulder matches with the external diameter of work piece；Uniform 8 screwed holes on clamp body step surface；
The cylinder that closing sleeve is inner chamber to match with the clamp body closing sleeve location shaft shoulder, bottom arranges flange chassis, and flange chassis is evenly equipped with 4 through holes, any 4 Corresponding matchings in 8 screwed holes uniform with on clamp body step surface；Top is provided with the hole of chamfering and holds the process window of cutter as processing work end face；Aperture with chamfered bore constitutes compacting ring with the poor of closing sleeve upper lumen diameter；The process window holding cutter that the position in uniform 4 holes to be processed with on work piece periphery matches on the cylinder of closing sleeve compacting ring bottom；Closing sleeve is sleeved on disc base with the matching relationship of dynamic cooperation, is screwed on clamp body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620130201.8U CN205342586U (en) | 2016-02-19 | 2016-02-19 | Fine special fixture that mills of high speed of small -size accurate work piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620130201.8U CN205342586U (en) | 2016-02-19 | 2016-02-19 | Fine special fixture that mills of high speed of small -size accurate work piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205342586U true CN205342586U (en) | 2016-06-29 |
Family
ID=56183283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620130201.8U Withdrawn - After Issue CN205342586U (en) | 2016-02-19 | 2016-02-19 | Fine special fixture that mills of high speed of small -size accurate work piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205342586U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105619137A (en) * | 2016-02-19 | 2016-06-01 | 山东大学 | High-speed micro-milling special clamp for small precise workpiece |
| CN107671640A (en) * | 2017-09-28 | 2018-02-09 | 中国航发动力股份有限公司 | A kind of aero-engine fuel nozzle precision part grinding quick change frock and application method |
| CN109318018A (en) * | 2017-07-31 | 2019-02-12 | 田中金属加工（上海）有限公司 | A kind of fixture for lathe in machining irregular contour part |
| CN113770454A (en) * | 2021-09-03 | 2021-12-10 | 宜昌船舶柴油机有限公司 | Chain wheel milling complete tool and clamping method |
-
2016
- 2016-02-19 CN CN201620130201.8U patent/CN205342586U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105619137A (en) * | 2016-02-19 | 2016-06-01 | 山东大学 | High-speed micro-milling special clamp for small precise workpiece |
| CN105619137B (en) * | 2016-02-19 | 2017-10-13 | 山东大学 | A kind of high speed minuteness milling special fixture of miniature precision workpiece |
| CN109318018A (en) * | 2017-07-31 | 2019-02-12 | 田中金属加工（上海）有限公司 | A kind of fixture for lathe in machining irregular contour part |
| CN107671640A (en) * | 2017-09-28 | 2018-02-09 | 中国航发动力股份有限公司 | A kind of aero-engine fuel nozzle precision part grinding quick change frock and application method |
| CN107671640B (en) * | 2017-09-28 | 2020-01-07 | 中国航发动力股份有限公司 | Grinding quick-change tool for precision part of fuel nozzle of aircraft engine and using method |
| CN113770454A (en) * | 2021-09-03 | 2021-12-10 | 宜昌船舶柴油机有限公司 | Chain wheel milling complete tool and clamping method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160629 Effective date of abandoning: 20171013 |