CN106914786A - A kind of inner hole of workpiece fixer for machining - Google Patents
A kind of inner hole of workpiece fixer for machining Download PDFInfo
- Publication number
- CN106914786A CN106914786A CN201710186227.3A CN201710186227A CN106914786A CN 106914786 A CN106914786 A CN 106914786A CN 201710186227 A CN201710186227 A CN 201710186227A CN 106914786 A CN106914786 A CN 106914786A
- Authority
- CN
- China
- Prior art keywords
- fixture
- workpiece
- base
- inner hole
- fixer
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The present invention provides a kind of inner hole of workpiece fixer for machining, the fixing device includes base, locating piece, fixture, the locating piece is connected with the base, the fixture is arranged on the base and is connected with the base, the locating piece is used to determine the position of the fixture, the fixture is used to clamp the workpiece for needing to carry out interior hole machined, pyramidal projections structure is set on the fixture, the workpiece surface is penetrated using raised structures, reduce clamping force while to ensure and clamp, improve the precision of work pieces process.
Description
Technical field
The present invention relates to technical field of tooling clamps, specially a kind of fixing device and its application based on interior hole machined.
Background technology
At present, when many thin-walled revolution workpiece Al alloy parts are processed on centre numerically controlled lathe, hydraulic pressure three-jaw is generally used
Or increase wlding material on three-jaw to increase the holding claw clamping with work piece interface to process, pressed from both sides using traditional scroll chuck
Tightly, after clamping force discharges, workpiece deformation is serious, and endoporus roundness tolerance exceeds the requirement of hole size tolerance, meanwhile, endoporus circle
Degree is irregular, and when postorder is processed, tensioner positioning is unstable, directly affects machining accuracy, is after all workpiece too thin in clamping
Processing there occurs deformation.
In order to reduce deformation, reduce clamping force in processing sometimes, although so deformation slightly improves, due to
Tubing is cylindrical irregular, and clamping and positioning is unstable, it is possible that not clamping situation, reduces clamping force, not only not by simple
Processing part deformation be can guarantee that in the margin of tolerance, and also deposit potential safety hazard.
The content of the invention
The technical problem to be solved in the present invention is directed to the fixing device folder of the interior hole machined of above-mentioned existing thin-wall workpiece
Clamp force is excessive and cause workpiece to be crushed out of shape so that problem of the hole size beyond permissible accuracy, proposes a kind of workpiece
Interior hole processing and fixing device, the fixing device includes base, locating piece, fixture, and the locating piece is connected with the base, institute
State fixture to be arranged on the base and be connected with the base, the locating piece is used to determine the position of the fixture, described
Fixture is used to clamp the workpiece for needing to carry out interior hole machined, and pyramidal projections structure is set on the fixture, is pricked using raised structures
Enter the workpiece surface, clamping force is reduced while to ensure and clamp, improve the precision of work pieces process, and by the fixture
Design is flexibly connected with the base, it is ensured that processing outer surface of workpiece can also be clamped when irregular, be improve described solid
Determine the versatility of device.
In order to solve the above-mentioned technical problem, the technical scheme of present invention offer is：
A kind of inner hole of workpiece fixer for machining, the fixing device includes base, locating piece, fixture, the locating piece
It is connected with the base, the fixture is arranged on the base and is connected with the base, and the locating piece is used to determine institute
The position of fixture is stated, the fixture is used to clamp the workpiece for needing to carry out interior hole machined.
The fixing device includes three part-structures altogether, and the three part-structures size and shape are identical, and described three
Part-structure is set around a center of circle, and the fixation of the workpiece is realized jointly, and the fixture inner side is set to arc structure, and
The fixture inner side of three part-structure collectively constitutes a circle configurations.
The fixture is flexibly connected with the base, the relatively described base left rotation and right rotation of the fixture or moves up and down, institute
State to be respectively provided with fixture and the base and straight pin placed in pin hole, the pin hole, be used to connect the fixture with it is described
Base simultaneously realizes the relative motion between the fixture and the base.
Fixture inner side middle setting circular groove, the fixture inner side sets multiple projection knots in the groove both sides
Structure, is used to clamp the workpiece, the raised structures according to multiple rows of multiple row shape proper alignment.
The raised structures are pyramidal structure, and the pyramidal structure sharp end is towards the center of circle, the adjacent conical knot
The two sides angle scope that structure closes on is 30 degree~90 degree.
Beneficial effects of the present invention are：
1. inner hole of workpiece fixer for machining of the invention is used, using the pyramidal projections structure set on fixture, is penetrated
Workpiece surface certain depth so that workpiece is not only acted in clamping process by frictional force, so as to considerably increase clamping
Stability, solve under relatively low clamping force effect, clamp unstable problem, it is ensured that workpiece is in high-speed rotation process
Safety problem；
2. inner hole of workpiece fixer for machining of the invention is used, design is flexibly connected using fixture and base, can be with
Surface defect is deposited for workpiece, it is also possible to clamp workpiece, reduce the requirement to workpiece, improve the general of fixing device
Property；
3. inner hole of workpiece fixer for machining of the invention is used, using pyramidal projections structure so that reduce clamping force, have
Effect reduces the deformation of thin-wall workpiece, and workpiece type variable is small after clamping force is removed, and its hole size meets wanting for dimensional tolerance
Ask；
4. use inner hole of workpiece fixer for machining of the invention, locating piece mounting means to facilitate replaceable, be applicable to
The workpiece of various models and size, substantially increases the versatility of Work fixing device.
Brief description of the drawings
Fig. 1 is the structural representation top view of inner hole of workpiece fixer for machining of the present invention；
Fig. 2 is the dimensional structure diagram of inner hole of workpiece fixer for machining single part of the present invention；
Fig. 3 is the structural representation of inner hole of workpiece fixer for machining fixture of the present invention.
Specific embodiment
The invention discloses a kind of inner hole of workpiece fixer for machining, those skilled in the art can use for reference present disclosure,
It is suitably modified technological parameter realization.It is important to note that all similar replacements and change come to those skilled in the art
Say be it will be apparent that they are considered as being included in the present invention, and related personnel substantially can not depart from present invention,
Content described herein is modified on the basis of spirit and scope or suitably change is realized and application skill of the present invention with combining
Art.
In the present invention, unless otherwise stated, Science and Technology noun used herein has art technology
The implication that personnel are generally understood that.
In order that those skilled in the art more fully understands technical scheme, with reference to specific embodiment pair
The present invention is described in further detail.
Current inner hole of workpiece is made or is fixed the workpiece using fixing device when processing, to facilitate it to process, often
Fixing device is clamp structure, i.e., using clamp workpiece, then workpiece is processed further, however, due to
Often the outer wall of workpiece, in order to clamp the workpiece, is preferably processed to workpiece and operates and prevent security incident than relatively thin, folder
Tool can provide certain clamping force, and the clamping force can cause workpiece that certain deformation occurs, when machining and cancel the folder
After clamp force, the workpiece has certain return change, and return change can cause the change of inner hole of workpiece size, and clamping force is got over
Greatly, its deformation is bigger, then the return change after the completion of work pieces process is also bigger, and the dimensional discrepancy for ultimately resulting in inner hole of workpiece is got over
Greatly, thus, in order to the size for ensureing inner hole of workpiece meets demand, then need to control the clamping force of fixing device, it is contemplated that peace
Full sex chromosome mosaicism, it is impossible to which simple reduction clamping force realizes reducing deformation that technical scheme proposed by the present invention can reduce clamping
Power, while can be good at fixing workpiece, reduces the error of inner hole of workpiece size while security is ensured.
The specific embodiment of inner hole of workpiece fixer for machining of the present invention is illustrated below in conjunction with the accompanying drawings：
Fig. 1 is the structural representation top view of inner hole of workpiece fixer for machining of the present invention, and the fixing device includes altogether
Three part-structures, and the three part-structures size and shape are identical, three part-structure is separate, and described three
Separation structure is set around a center of circle, and the fixation of the workpiece is realized jointly, and the inner side of the fixture 4 is set to arc structure, and
Collectively constitute a circle configurations on the inside of three part-structures, three part-structure is connected with the mechanism such as machine tool chief axis respectively,
The three part-structures movement is driven by the machine tool chief axis to realize the operations such as feeding, clamping, the blanking of the workpiece.
The single part of the fixing device includes base 1, locating piece 2, fixture 4, the locating piece 2 and the base 1
Connection, the fixture 4 is arranged on the base 1 and is connected with the base 1, and the locating piece 2 is used to determine the fixture 4
Position, the fixture 4 is used to clamp the workpiece for needing to carry out interior hole machined, sets right on the base 1 and the locating piece 2
Answer screw hole and the base 1 and the locating piece 2 are fixedly connected by the first screw 3, set away from center of circle one end on the base
Put screw hole and the base 1 and the machine tool chief axis are fixedly connected by the second screw 6, set on the base 1 and the fixture 4
Put corresponding pin hole and connected by straight pin 5.
Fig. 2 is the dimensional structure diagram of inner hole of workpiece fixer for machining single part of the present invention, the base 1 and machine
Bed main shaft is connected and is used to support whole fixing device, and the fixture 4 is flexibly connected for 1 with the bottom, and the fixture 4 is with respect to institute
State base 1 can realize left rotation and right rotation or it is micro move up and down, be respectively provided with pin hole on the fixture 4 and the base 1, institute
State and straight pin 5 is placed in pin hole, be used to connect the fixture 4 and the base 1 and realize the fixture 4 with the base 1
Between relative motion, the locating piece 2 is connected with the base by first screw 3, and the locating piece 2 is used to fix
The position of the fixture 4, the fixture 4 around the left rotation and right rotation of the straight pin 5 to touch the locating piece 2 when by the positioning
Block 2 limits the continuation rotary motion of the fixture 4, and consolidating for the workpiece is realized jointly by the base 1, locating piece 2, fixture 4
It is fixed, and due to the fixture 4 can along the straight pin about 5 trace movement and can around the left-right rotation of the straight pin 5,
And final position is determined by the locating piece 2, ensure that the workpiece outer round surface out-of-flatness or it is irregular when described in
Fixture 4 can by its own move up and down or left-right rotary is transferred and realizes being fully contacted for the fixture 4 and the workpiece, carry
Chuck strength high.
Further, the inner side middle part of the fixture 4 sets circular groove, and the inner side of the fixture 4 is in the groove both sides
Multiple raised structures are set, are used to clamp the workpiece, the raised structures according to multiple rows of multiple row shape proper alignment, it is described
Raised structures are pyramidal structure, the pyramidal structure sharp end towards the center of circle, when the workpiece is placed in the inner side of the fixture 4
When, provide inside clamping force by the fixture 4 and promote the pyramidal structure to penetrate the outer surface of workpiece, further strengthen institute
The fixation of workpiece, and penetrating due to the pyramidal structure are stated, the clamping force can be reduced, it is thus possible to reduce described
Deformation quantity in workpiece process, realizes that the endoporus processing dimension of the workpiece meets the error range of regulation, as shown in Figure 3
It is the structural representation of inner hole of workpiece fixer for machining fixture of the present invention, two sides that the adjacent conical structure is closed on institute is into folder
Angle θ scopes are 30 degree~90 degree, optimal in the present embodiment to choose the angle theta scope for 60 degree.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of inner hole of workpiece fixer for machining, it is characterised in that the fixing device includes base, locating piece, fixture, institute
State locating piece to be connected with the base, the fixture is arranged on the base and is connected with the base, the locating piece is used
To determine the position of the fixture, the fixture is used to clamp the workpiece for needing to carry out interior hole machined.
2. inner hole of workpiece fixer for machining according to claim 1, it is characterised in that the fixing device includes three altogether
Part-structure, the three part-structures size and shape are identical, and three part-structure is set around a center of circle, jointly
Realize the fixation of the workpiece.
3. inner hole of workpiece fixer for machining according to claim 2, it is characterised in that the fixture is lived with the base
Dynamic connection, the relatively described base left rotation and right rotation of the fixture or moves up and down.
4. inner hole of workpiece fixer for machining according to claim 3, it is characterised in that on the fixture and the base
It is respectively provided with pin hole, straight pin is placed in the pin hole, is used to connect the fixture and the base and realizes the fixture
With the relative motion between the base.
5. inner hole of workpiece fixer for machining according to claim 2, it is characterised in that the fixture inner side is designed as circle
Arc structure, and the fixture inner side of three part-structure collectively constitutes a circle configurations.
6. inner hole of workpiece fixer for machining according to claim 2, it is characterised in that fixture inner side middle setting
Circular groove.
7. inner hole of workpiece fixer for machining according to claim 6, it is characterised in that the fixture inner side is in described recessed
Groove both sides set multiple raised structures, are used to clamp the workpiece.
8. inner hole of workpiece fixer for machining according to claim 7, it is characterised in that the raised structures are according to multiple rows of
The shape proper alignment of multiple row.
9. inner hole of workpiece fixer for machining according to claim 8, it is characterised in that the raised structures are taper knot
Structure, the pyramidal structure sharp end is towards the center of circle.
10. inner hole of workpiece fixer for machining according to claim 9, it is characterised in that the adjacent conical structure is faced
Near two sides angle scope is 30 degree~90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710186227.3A CN106914786A (en) | 2017-03-27 | 2017-03-27 | A kind of inner hole of workpiece fixer for machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710186227.3A CN106914786A (en) | 2017-03-27 | 2017-03-27 | A kind of inner hole of workpiece fixer for machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106914786A true CN106914786A (en) | 2017-07-04 |
Family
ID=59461127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710186227.3A Pending CN106914786A (en) | 2017-03-27 | 2017-03-27 | A kind of inner hole of workpiece fixer for machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106914786A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090051092A1 (en) * | 2005-04-21 | 2009-02-26 | Christian Egger | Clamping head provided with floating clamping jaws |
| CN201329511Y (en) * | 2009-01-15 | 2009-10-21 | 上海交通大学 | External surface circle float clamp for turning process of inner wall of thin-wall cylinder |
| CN203266205U (en) * | 2013-04-26 | 2013-11-06 | 无锡西姆莱斯石油专用管制造有限公司 | Device preventing oil well pipe clamped by lathe from being deformed |
| CN103464800A (en) * | 2013-09-23 | 2013-12-25 | 苏州凯欧机械科技有限公司 | Floating type novel turning and positioning device for thin-wall piece |
| CN104128634A (en) * | 2014-07-07 | 2014-11-05 | 常熟市常轴轴承有限公司 | Floating clamping jaw for lathe machining |
| CN204621127U (en) * | 2015-04-21 | 2015-09-09 | 湖州诚基机械有限公司 | A kind of external diameter floating clamp |
| CN105665765A (en) * | 2016-03-29 | 2016-06-15 | 西安法士特汽车传动有限公司 | Three-jaw twelve-point floating clamping claw |
| CN206779993U (en) * | 2017-03-27 | 2017-12-22 | 长春市美科汽车零部件有限公司 | A kind of inner hole of workpiece fixer for machining |
-
2017
- 2017-03-27 CN CN201710186227.3A patent/CN106914786A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090051092A1 (en) * | 2005-04-21 | 2009-02-26 | Christian Egger | Clamping head provided with floating clamping jaws |
| CN201329511Y (en) * | 2009-01-15 | 2009-10-21 | 上海交通大学 | External surface circle float clamp for turning process of inner wall of thin-wall cylinder |
| CN203266205U (en) * | 2013-04-26 | 2013-11-06 | 无锡西姆莱斯石油专用管制造有限公司 | Device preventing oil well pipe clamped by lathe from being deformed |
| CN103464800A (en) * | 2013-09-23 | 2013-12-25 | 苏州凯欧机械科技有限公司 | Floating type novel turning and positioning device for thin-wall piece |
| CN104128634A (en) * | 2014-07-07 | 2014-11-05 | 常熟市常轴轴承有限公司 | Floating clamping jaw for lathe machining |
| CN204621127U (en) * | 2015-04-21 | 2015-09-09 | 湖州诚基机械有限公司 | A kind of external diameter floating clamp |
| CN105665765A (en) * | 2016-03-29 | 2016-06-15 | 西安法士特汽车传动有限公司 | Three-jaw twelve-point floating clamping claw |
| CN206779993U (en) * | 2017-03-27 | 2017-12-22 | 长春市美科汽车零部件有限公司 | A kind of inner hole of workpiece fixer for machining |
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