CN209598782U - It is a kind of for processing the clamp for machining of thin-wall bush - Google Patents
It is a kind of for processing the clamp for machining of thin-wall bush Download PDFInfo
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- CN209598782U CN209598782U CN201821785901.6U CN201821785901U CN209598782U CN 209598782 U CN209598782 U CN 209598782U CN 201821785901 U CN201821785901 U CN 201821785901U CN 209598782 U CN209598782 U CN 209598782U
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Abstract
The utility model provides a kind of for processing the clamp for machining of thin-wall bush, clamp for machining includes fulcrum bearing, expansion sleeve, swelling bar, stud and locking nut A, fulcrum bearing is clamped on machine tool chief axis, stud is pierced by by through-hole in fulcrum bearing and is fixedly connected with fulcrum bearing, the end of stud is connected with locking nut A by screw thread pair, on expansion sleeve and swelling bar are successively set between stud, and it is compressed by locking nut A, expansion sleeve has taper hole section, swelling bar has cone rod segment, and cone rod segment fits with taper hole section；When using the clamp for machining, including processing workpiece by blank, clamping fulcrum bearing, the scene circle jitter values, clamping and the swelling workpiece that adjust fulcrum bearing periphery, carrying out machining to excircle of workpiece face；Using the technical solution of the utility model, the workpiece after clamping is rigidly greatly improved, and ensure that the concentricity between stud and machine tool chief axis, is reduced Roundness of Workpiece, coaxiality error, is improved machining accuracy, improves product qualification rate.
Description
Technical field
The utility model relates to technical fields of mechanical processing, refer in particular to a kind of for processing the processed clip of thin-wall bush
Tool.
Background technique
Hollow columnar bushing is the widely applied components in all kinds of mechanical equipments or device, in the prior art, to this
The method that the processing method of class part generally uses turnery processing, in aviation industry, to the processing matter of this components
Amount and requirement on machining accuracy are very high, such as certain bushing, and outer diameter is φ 33.552 ± 0.003, and bushing inner diameter is φ 30.215
± 0.003, internal-and external diameter coaxiality error requires to be 0.02, the processing of the part for this kind of wall thickness less than 2mm, existing processing skill
After art generally uses lathe to carry out machine-shaping to one end of its blank, then it is cut to predetermined length, existing processing technology is deposited
In following defect, first is that, scroll chuck clamping workpiece is used in process, in cut off operation, due to workpiece major part material
Material has been cut removal, and workpiece is very thin, under the action of cutting force and cutting heat, and in the clamping masterpiece of scroll chuck
Under, workpiece is easy to appear deformation, influences the processing quality of the part of final machine-shaping, causes product qualified rate lower.
Utility model content
In order to solve the above technical problems, the utility model provide it is a kind of for processing the clamp for machining of thin-wall bush.
The utility model is achieved by the following technical programs.
The utility model provides a kind of clamp for machining of thin-wall bush, including hollow form fulcrum bearing, hollow form expansion sleeve,
Hollow form swelling bar, ladder shaft-like stud and locking nut A, as bearing surface, opposite is another for a side end face of the fulcrum bearing
One side end face is pierced by as working face, the stud by through-hole in the fulcrum bearing, one end of the stud and the bearing surface
It flushes and passes through connecting pin and link together with the fulcrum bearing, the other end of the stud is provided with thread segment, the swelling
Through-hole includes the straight hole section and taper hole section being connected together in set, and the expansion sleeve is set in the fulcrum bearing within through-hole simultaneously
And the taper hole section is exposed on the outside of the working face, the swelling bar periphery includes the straight bar section to link together and cone bar
Section, within the swelling rod set is loaded on through-hole in the expansion sleeve, and the cone rod segment fits with the taper hole section, described
Locking nut A linked together by screw thread pair with the stud thread segment and with the swelling bar and tight.
The clamp for machining of the thin-wall bush further includes pressing sleeve, pressing plate and locking nut B, and pressing sleeve and pressing plate are successively set in
On the stud thread segment, locking nut B screws and passes sequentially through pressing plate, pressing sleeve with the stud thread segment and is pressed against workpiece
On the working face.
The clamp for machining of the thin-wall bush further includes fixed pin, and the expansion sleeve is connect by fixed pin with the fulcrum bearing
Together.
The clamp for machining of the thin-wall bush further includes fixed pin, is additionally provided on the straight bar section along center axis thereof side
To the rotation stop groove of extension, the expansion sleeve and the fulcrum bearing are linked together and are protruded within rotation stop groove by fixed pin.
The clamp for machining of the thin-wall bush further includes flange plate, and the swelling bar periphery further includes being connected to the cone
Extended segment on the outside of rod segment big end, the locking nut A by flange plate overlay on extended segment outer end face, extended segment outer end face also
It is disposed an outwardly facing the mousing-hook of the swelling bar central axis, the flange plate is at least a part of to be contained within mousing-hook.
The locking nut A and the flange plate are integrally manufactured formings.
The utility model has the beneficial effects that: being prolonged using the technical solution of the utility model by fulcrum bearing and stud
The length of machine tool chief axis is stretched, and fulcrum bearing is easy to carry out finishing production, ensure that same between stud and machine tool chief axis
Axis degree lays a good foundation to improve machining accuracy, then by tightening locking nut A, through-hole swelling in thin-wall workpiece is being tightened
During locking nut A, locking nut A often tightens a length unit, then makes in thin-wall workpiece through-hole radially direction
Thin-wall workpiece has been effectively ensured so that each point is consistent when advantageously ensuring that the processing of excircle of thin-walled workpiece face in equably swelling
Circularity, coaxial accuracy error when processing make thin-wall workpiece axial restraint, to increase thin by tightening locking nut B
The rigidity of walled workpieces, in this way when carrying out machining to excircle of thin-walled workpiece face, thin-wall workpiece resists the ability of deformation substantially
Degree improves, and the machining accuracy of the part of machining molding has been effectively ensured, has improved product qualification rate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the clamp for machining of the utility model thin-wall bush；
Fig. 2 is the structural schematic diagram of the utility model expansion sleeve；
Fig. 3 is the structural schematic diagram of the utility model swelling bar；
Fig. 4 is process flow chart when the utility model is used.
In figure: 1- fulcrum bearing, 2- expansion sleeve, 3- swelling bar, 4- stud, 5- locking nut A, 6- connecting pin, 7- pressing sleeve, 8-
Pressing plate, 9- locking nut B, 10- fixed pin, 11- workpiece, 12- flange plate, 101- bearing surface, 102- working face, 201- straight hole
Section, 202- taper hole section, 301- straight bar section, 302- bore rod segment, 303- rotation stop groove, the extended segment 304-, 305- mousing-hook, 401- screw thread
Section.
Specific embodiment
Be described further below the technical solution of the utility model, but claimed range be not limited to it is described.
As shown in Figure 1, Figure 2, Figure 3 shows, the utility model provides a kind of for processing the clamp for machining of thin-wall bush, including
Hollow form fulcrum bearing 1, hollow form expansion sleeve 2, hollow form swelling bar 3, ladder shaft-like stud 4 and locking nut A5, fulcrum bearing 1
One side end face is pierced by as working face 102, stud 4 by through-hole in fulcrum bearing 1 as bearing surface 101, opposite another side end face,
One end of stud 4 flushes with bearing surface 101 and is linked together by connecting pin 6 with fulcrum bearing 1, the other end setting of stud 4
There is thread segment 401, through-hole includes the straight hole section 201 and taper hole section 202 being connected together in expansion sleeve 2, and expansion sleeve 2 is set in branch
It holds in seat 1 within through-hole and taper hole section 202 is exposed to 102 outside of working face, 3 periphery of swelling bar includes linking together
Straight bar section 301 and cone rod segment 302, swelling bar 3 is set in expansion sleeve 2 within through-hole, and bores rod segment 302 and taper hole section 202
It fits, locking nut A5 is linked together by screw thread pair and 4 thread segment 401 of stud and with swelling bar 3 and tightly.Further
Fit clearance in ground, preferably 4 periphery of stud and fulcrum bearing 1 between through-hole wall is less than 0.03mm, to improve clamp for machining
Whole concentricity.
Using the technical solution of the utility model, the length of machine tool chief axis is extended by fulcrum bearing and stud, and is propped up
It holds seat to be easy to carry out finishing production, ensure that the concentricity between stud and machine tool chief axis, established to improve machining accuracy
Basis, then by tightening locking nut A, by through-hole swelling in thin-wall workpiece, during tightening locking nut A, locking screw
Female A often tightens a length unit, then makes through-hole radially direction equably swelling in thin-wall workpiece, to advantageously ensure that
Each point is consistent when excircle of thin-walled workpiece face processes, and the circularity, coaxial accuracy when thin-wall workpiece processing has been effectively ensured are missed
Difference makes thin-wall workpiece axial restraint, so that the rigidity of thin-wall workpiece is increased, in this way to thin-walled by tightening locking nut B
When excircle of workpiece face carries out machining, the ability that thin-wall workpiece resists deformation is increased substantially, and machining has been effectively ensured
The machining accuracy of molding part, improves product qualification rate.
Further, the clamp for machining of thin-wall bush further includes pressing sleeve 7, pressing plate 8 and locking nut B9, pressing sleeve 7 and pressing plate 8
It is successively set on 4 thread segment 401 of stud, locking nut B9 and 4 thread segment 401 of stud screw and pass sequentially through pressing plate 8, pressure
Workpiece 11 is pressed against on working face 102 by set 7.When pressing sleeve 7 and pressing plate 8 are set on 4 thread segment 401 of stud, wherein leading to
Kong Keyu locking nut A retains gap appropriate between outer surface.
Further, the clamp for machining of thin-wall bush further includes fixed pin 10, and fixed pin 10 is by expansion sleeve 2 and fulcrum bearing 1
It links together.The clamp for machining of thin-wall bush further includes fixed pin 10, is additionally provided on straight bar section 301 along center axis thereof side
To the rotation stop groove 303 of extension, expansion sleeve 2 and fulcrum bearing 1 are linked together and are protruded within rotation stop groove 303 by fixed pin 10.
In this way in cutting process, it can prevent swelling bar 3 from rotating relative to stud 4 by rotation stop groove 303, and can only be in rotation stop
Length range appropriate is interior within slot 303 is adjusted along axial direction.
Further, the clamp for machining of thin-wall bush further includes flange plate 12, and 3 periphery of swelling bar further includes being connected to cone
Extended segment 304 on the outside of 302 big end of rod segment, locking nut A5 overlay flange plate 12 in 304 outer end face of extended segment, extended segment
The mousing-hook 305 towards 3 central axis of swelling bar is additionally provided on 304 outer end faces, at least a part of receiving of flange plate 12
Within mousing-hook 305.By the cooperation between the flange plate 12 and mousing-hook 305, the machining to workpiece can be completed
Later, easily workpiece is taken out, i.e., by unscrewing locking nut A, by the contact of mousing-hook 305 and flange plate 12, pulled
Swelling bar pulls out simultaneously, waits at ease for an exhausted opponent, and it is convenient to operate.
Further, locking nut A5 and flange plate 12 are integrally manufactured formings.
In addition, as shown in figure 4, using it is provided by the utility model for process thin-wall bush clamp for machining when, including
Following steps:
Step 1: providing blank, carries out machining to blank, cuts off most of material on blank, obtains annulus column
Workpiece 11, wherein reserve appropriate machining allowance on 11 periphery of workpiece；Further, it is reserved more than processing on 11 periphery of workpiece
Amount is 1mm.
Step 2: using the clamp for machining of thin-wall bush, 1 bearing surface of fulcrum bearing, 101 side is clamped in lathe master
On axis；
Step 3: the radial run-out value for 1 periphery of fulcrum bearing that measurement is clamped on machine tool chief axis, when the value is greater than in advance
If when threshold value, adjusting the fit clearance in 4 periphery of stud and fulcrum bearing 1 between through-hole, when the value is less than preset threshold, into
Row is in next step；Further, the radial run-out preset threshold for 1 periphery of fulcrum bearing being clamped on machine tool chief axis is
0.01mm.Using the technical solution of the utility model, pass through the measurement work of the radial run-out to 1 periphery of fulcrum bearing, In
It just lays a good foundation before processing to reduce the coaxiality error of workpiece, is conducive to improve product qualification rate.
Step 4: workpiece 11 being linked on 2 periphery of expansion sleeve, locking nut A5 is screwed, and is made in workpiece 11 in through-hole
Wall is close to 2 periphery of expansion sleeve；
Step 5: it is successively set with pressing sleeve 7, pressing plate 8 on 4 thread segment 401 of stud, and is revolved on 4 thread segment 401 of stud
Locking nut B9 is closed, be pressed against pressing plate 8, pressing sleeve 7 workpiece 11 on working face 102；
Step 6: starting lathe cuts off the machining allowance reserved on 11 outer circle outer surface of workpiece by cutting tool, then will
Workpiece 11 takes out from the clamp for machining of thin-wall bush, obtains thin-wall bush.
Claims (6)
1. a kind of clamp for machining of thin-wall bush, it is characterised in that: including hollow form fulcrum bearing (1), hollow form expansion sleeve (2),
Hollow form swelling bar (3), ladder shaft-like stud (4) and locking nut A (5), a side end face of the fulcrum bearing (1) is as bearing
Face (101), opposite another side end face are pierced by as working face (102), the stud (4) by through-hole in the fulcrum bearing (1),
One end of the stud (4) flushes with the bearing surface (101) and is connected to one by connecting pin (6) and the fulcrum bearing (1)
Rise, the other end of the stud (4) is provided with thread segment (401), in the expansion sleeve (2) through-hole include be connected together it is straight
Hole section (201) and taper hole section (202), the expansion sleeve (2) is set in the fulcrum bearing (1) within through-hole and the taper hole
Section (202) is exposed on the outside of the working face (102), and swelling bar (3) periphery includes the straight bar section to link together
(301) and rod segment (302) are bored, the swelling bar (3) is set in the expansion sleeve (2) within through-hole, and the cone rod segment
(302) it fits with the taper hole section (202), the locking nut A (5) passes through screw thread pair and the stud (4) thread segment
(401) it links together and with the swelling bar (3) and tightly.
2. the clamp for machining of thin-wall bush according to claim 1, it is characterised in that: the clamp for machining of the thin-wall bush
It further include pressing sleeve (7), pressing plate (8) and locking nut B (9), pressing sleeve (7) and pressing plate (8) are successively set in the stud (4) screw thread
On section (401), locking nut B (9) and the stud (4) thread segment (401) screw and pass sequentially through pressing plate (8), pressing sleeve (7)
Workpiece (11) is pressed against on the working face (102).
3. the clamp for machining of thin-wall bush according to claim 1, it is characterised in that: the clamp for machining of the thin-wall bush
It further include fixed pin (10), fixed pin (10) links together the expansion sleeve (2) and the fulcrum bearing (1).
4. the clamp for machining of thin-wall bush according to claim 1, it is characterised in that: the clamp for machining of the thin-wall bush
Further include fixed pin (10), the rotation stop groove (303) extended along center axis thereof direction be additionally provided on the straight bar section (301),
The expansion sleeve (2) and the fulcrum bearing (1) are linked together and are protruded within rotation stop groove (303) by fixed pin (10).
5. the clamp for machining of thin-wall bush according to claim 1, it is characterised in that: the clamp for machining of the thin-wall bush
It further include flange plate (12), swelling bar (3) periphery further includes the extension being connected on the outside of described cone rod segment (302) big end
Section (304), the locking nut A (5) overlay flange plate (12) in extended segment (304) outer end face, extended segment (304) outer end face
On be additionally provided with the mousing-hook (305) towards swelling bar (3) central axis, flange plate (12) at least a part of receiving
Within mousing-hook (305).
6. the clamp for machining of thin-wall bush according to claim 5, it is characterised in that: the locking nut A (5) with it is described
Flange plate (12) is integrally manufactured forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821785901.6U CN209598782U (en) | 2018-10-30 | 2018-10-30 | It is a kind of for processing the clamp for machining of thin-wall bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821785901.6U CN209598782U (en) | 2018-10-30 | 2018-10-30 | It is a kind of for processing the clamp for machining of thin-wall bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209598782U true CN209598782U (en) | 2019-11-08 |
Family
ID=68395091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821785901.6U Active CN209598782U (en) | 2018-10-30 | 2018-10-30 | It is a kind of for processing the clamp for machining of thin-wall bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209598782U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109262328A (en) * | 2018-10-30 | 2019-01-25 | 贵州黎阳国际制造有限公司 | The clamp for machining and processing method in a kind of Z-shaped excircle of thin-walled workpiece face |
| CN109333125A (en) * | 2018-10-30 | 2019-02-15 | 贵州黎阳国际制造有限公司 | A kind of clamp for machining and processing method of thin-wall bush |
| CN113231868A (en) * | 2021-04-26 | 2021-08-10 | 广州市昊志机电股份有限公司 | Machine tool machining positioning mechanism |
| CN114714122A (en) * | 2022-03-07 | 2022-07-08 | 苏机智能制造(江苏)有限公司 | Internal expansion type tool for numerical control machining center |
-
2018
- 2018-10-30 CN CN201821785901.6U patent/CN209598782U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109262328A (en) * | 2018-10-30 | 2019-01-25 | 贵州黎阳国际制造有限公司 | The clamp for machining and processing method in a kind of Z-shaped excircle of thin-walled workpiece face |
| CN109333125A (en) * | 2018-10-30 | 2019-02-15 | 贵州黎阳国际制造有限公司 | A kind of clamp for machining and processing method of thin-wall bush |
| CN113231868A (en) * | 2021-04-26 | 2021-08-10 | 广州市昊志机电股份有限公司 | Machine tool machining positioning mechanism |
| CN114714122A (en) * | 2022-03-07 | 2022-07-08 | 苏机智能制造(江苏)有限公司 | Internal expansion type tool for numerical control machining center |
| CN114714122B (en) * | 2022-03-07 | 2023-12-22 | 苏机智能制造(江苏)有限公司 | Inner expansion type tool for numerical control machining center |
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