CN203792170U - Tool for grinding of inner bores in sleeve parts - Google Patents
Tool for grinding of inner bores in sleeve parts Download PDFInfo
- Publication number
- CN203792170U CN203792170U CN201420153224.1U CN201420153224U CN203792170U CN 203792170 U CN203792170 U CN 203792170U CN 201420153224 U CN201420153224 U CN 201420153224U CN 203792170 U CN203792170 U CN 203792170U
- Authority
- CN
- China
- Prior art keywords
- fixture
- adapter sleeve
- tool
- grinding
- frock
- 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.)
- Expired - Lifetime
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 16
- 230000013011 mating Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000010009 beating Methods 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 239000000843 powder Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The utility model discloses a tool for grinding of inner bores in sleeve parts. The tool comprises a connecting sleeve, a fixture and an end cover. The inner peripheral surface of the fixture is provided with a tool withdrawal groove provided with machining allowance. The connecting sleeve is connected with a machine tool spindle through a machine tool connecting bolt. The fixture is provided with a connection flange provided with bolt holes; the fixture is connected with the connecting sleeve through fixture connecting bolts inserted into the bolt holes. The connecting sleeve is in taper fit with the machine tool spindle. The fixture is in clearance fit with the connecting sleeve. The tool has the advantages that the fixture can be reused and production cost is saved.
Description
Technical field
The utility model belongs to a kind of hard alloy mechanical process equipment, specifically a kind of frock of grinding cover parts endoporus.
Background technology
At present, for the frock of cover parts endoporus mass grinding as shown in Figure 4, adopt fixture 5 clamping workpieces 9, compress with end cap 7, then scroll chuck 10 clamping devices of use.After fixture 5 clampings complete, according to workpiece outside dimension, fixture 5 is carried out to grinding, while ensureing that fixture 5 rotates, the circular runout of endoporus, in 0.01mm, ensures that the fit clearance of fixture 5 and workpiece 9 is in 0.02mm simultaneously.The internal circular surfaces of fixture 5 is provided with escape 6, and the degree of depth only has 0.3～0.5mm.Although this kind of frock can ensure the machining accuracy of product, realize the mass grinding of cover parts product endoporus, there is following defect:
1, because the repetition centering precision of scroll chuck is poor, change lower fixture because clamping is again on equipment time, cannot ensure beating in processing range of fixture endoporus, the fixture under replacing can only be scrapped.
2, the grinding powder in grinding process easily enters scroll chuck, causes larger resistance, and claw can not be moved, and needs often to clean scroll chuck.
Utility model content
The purpose of this utility model is to provide a kind of frock of the grinding cover parts endoporus reusing.
The technical solution of the utility model is as follows:
A frock for grinding cover parts endoporus, comprises fixture and end cap; Fixture and end cap adopt screw thread to fix; The internal circular surfaces of fixture is provided with escape.Frock is also provided with adapter sleeve, and adapter sleeve is connected by lathe connecting bolt with machine tool chief axis; Fixture, with adpting flange, has bolt hole on flange, fixture is connected with adapter sleeve by the connecting bolt in inserting bolt hole.
The utility model adopts adapter sleeve to replace scroll chuck, has avoided the stuck claw of grinding powder, and the axial deflection that makes claw can not opening and closing and may occur when scroll chuck clamping device, makes adapter sleeve align at axis direction with adapter sleeve with machine tool chief axis, fixture.Axially being ensured by adapter sleeve end face and fixture flange face of fixture.After having solved fixture and reinstalling, can not locate centering, fixture can not be reused and need often to clean the problem of scroll chuck.
Further improve and be: the cylindrical mating surface of described fixture and the inner circle mating surface of adapter sleeve are matched in clearance.
Coordinate and can utilize gap that the inner surface of fixture is beated to centering within the scope of technological requirement thus.
Further improve and be: the degree of depth of described escape is 2～3mm.
Because the escape of fixture internal circular surfaces leaves allowance, make the escape end face of each fixture can lean on mill repeatedly, therefore fixture can be reused.
The beneficial effects of the utility model are: realized the recycling of fixture, saved production cost.Owing to having removed scroll chuck, solve the problem that needs often to clean scroll chuck, save manpower, improve production efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is fixture schematic diagram of the present utility model.
Fig. 3 is the right view of Fig. 2.
Fig. 4 is the structural representation of existing frock.
In figure: 1, machine tool chief axis; 2, lathe connecting bolt; 3, adapter sleeve; 4, fixture connecting bolt; 5, fixture; 6, escape; 7, end cap; 8, bolt hole; 9, workpiece; 10, scroll chuck
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 1, Figure 2, Figure 3 shows, the utility model comprises adapter sleeve 3, fixture 5 and end cap 7.Adapter sleeve 3 is connected with machine tool chief axis 1 by lathe connecting bolt 2, is connected to taper fit.Fixture 5, with adpting flange, has bolt hole 8 on flange, fixture 5 is connected with adapter sleeve 3 by the connecting bolt 4 in inserting bolt hole 8.The cylindrical mating surface of fixture 5 and the inner circle mating surface of adapter sleeve 3 are matched in clearance.Fixture 5 adopts screw thread to fix with end cap 7.The internal circular surfaces of fixture 5 is provided with escape 6.
Because the cylindrical mating surface of fixture 5 and the inner circle mating surface of adapter sleeve 3 are matched in clearance, can utilize gap fixture 5 inner surfaces beat centering within the scope of technological requirement, technological requirement scope is 0.003mm.After the inner surface of centering fixture 5, with emery wheel, by the escape end face of grinding jig 5, the escape end face that ensures fixture 5 is the beating within the scope of technological requirement of locating surface of workpiece 9.After fixture 5 clampings complete, workpiece 9 clampings, to 5 li of fixtures, are compressed with end cap 7.Be provided with escape 6 at the internal circular surfaces of fixture 5, escape 6 leaves allowance, and depth of recess is 2～3mm.When fixture 5 reuses, only need beating in 0.003mm of centering fixture 5 inner surfaces.The end face of escape 6, by mill 0.03～0.05 mm, can ensure that the inner surface of fixture 5 is beated in 0.003mm.Because the degree of depth of escape 6 is 2～3mm, therefore each clamp body escape end face at least reliably grind 40 times, after unloading, can reuse 40 times.By the escape end face by mill escape 6, can ensure beating within the scope of technological requirement of workpiece 9 locating surfaces.The cooperation inner circle of adapter sleeve 3 is all consistent with the accuracy of form and position with the cooperation excircle dimension of fixture 5.While changing model, only need to change fixture 5, do not need to change adapter sleeve 3.
The utility model has been realized the recycling of fixture, has saved production cost.
Claims (3)
1. a frock for grinding cover parts endoporus, comprises fixture (5) and end cap (7); Fixture (5) adopts screw thread to fix with end cap (7); The internal circular surfaces of fixture (5) is provided with escape (6), it is characterized in that: described frock is also provided with adapter sleeve (3); Adapter sleeve (3) is connected by lathe connecting bolt (2) with machine tool chief axis (1); Fixture (5), with adpting flange, has bolt hole (8) on flange, fixture (5) is connected with adapter sleeve (3) by the connecting bolt (4) in inserting bolt hole (8).
2. the frock of a kind of grinding cover parts endoporus according to claim 1, is characterized in that: the cylindrical mating surface of described fixture (5) and the inner circle mating surface of adapter sleeve (3) are matched in clearance.
3. the frock of a kind of grinding cover parts endoporus according to claim 1, is characterized in that: the degree of depth of described escape (6) is 2～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153224.1U CN203792170U (en) | 2014-03-31 | 2014-03-31 | Tool for grinding of inner bores in sleeve parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153224.1U CN203792170U (en) | 2014-03-31 | 2014-03-31 | Tool for grinding of inner bores in sleeve parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203792170U true CN203792170U (en) | 2014-08-27 |
Family
ID=51374437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420153224.1U Expired - Lifetime CN203792170U (en) | 2014-03-31 | 2014-03-31 | Tool for grinding of inner bores in sleeve parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203792170U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105269456A (en) * | 2015-11-13 | 2016-01-27 | 西安航天精密机电研究所 | Grinding device and method for boron carbide gas bearing |
| CN109333353A (en) * | 2018-11-22 | 2019-02-15 | 沈阳航天新光集团有限公司 | Six axis air bearing grinding machine magic chucks |
-
2014
- 2014-03-31 CN CN201420153224.1U patent/CN203792170U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105269456A (en) * | 2015-11-13 | 2016-01-27 | 西安航天精密机电研究所 | Grinding device and method for boron carbide gas bearing |
| CN109333353A (en) * | 2018-11-22 | 2019-02-15 | 沈阳航天新光集团有限公司 | Six axis air bearing grinding machine magic chucks |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |
|
| CX01 | Expiry of patent term |