CN110480507A - Fixture for thin-walled parts high accurate hole away from grinding - Google Patents
Fixture for thin-walled parts high accurate hole away from grinding Download PDFInfo
- Publication number
- CN110480507A CN110480507A CN201910732953.XA CN201910732953A CN110480507A CN 110480507 A CN110480507 A CN 110480507A CN 201910732953 A CN201910732953 A CN 201910732953A CN 110480507 A CN110480507 A CN 110480507A
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- CN
- China
- Prior art keywords
- clamp body
- grinding
- sliding block
- thin
- fixture
- 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.)
- Pending
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 22
- 238000003825 pressing Methods 0.000 claims description 7
- 210000002421 cell wall Anatomy 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000010127 yangjing Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a kind of fixtures for thin-walled parts high accurate hole away from grinding, are made of primary clamp body clamp body, positioning sliding block, fixing seat, position block and pitch-row locating piece；By position block and pitch-row locating piece adjustment hole carpenters square cun, part and positioning sliding block are fixed, quickly positioning is realized by the translation between positioning sliding block and primary clamp body clamp body, to guarantee the rapidity and reliability of the device.The present invention is convenient for mounting and clamping, and one time batch machining can be completed in centering, and processing can be realized in plain grinding machine internal, instead of jig grinder, reduce processing cost, improve processing efficiency.
Description
Technical field
The invention belongs to technical fields of mechanical processing, and in particular to one kind is for thin-walled parts high accurate hole away from grinding
Fixture.
Background technique
For thin wall component, two inner holes of grinding, while guarantee the pitch-row tolerance+0.01mm of two inner holes with
Hole size tolerance values only 0.005mm.Under conditions of no jig grinder, while guaranteeing the public affairs of pitch-row size ± 0.01mm
Difference is extremely difficult with the tolerance of inner hole 0.005mm.
Traditional honing or grinding can guarantee the tolerance of hole size 0.005mm, but not can guarantee pitch-row size.
Cutter Body Processing with Machining Center Milling Process can guarantee pitch-row size by Machine Tool Positioning Accuracy and NC Interpolation, but machine tool accuracy can not
Guarantee the tolerance of hole size 0.005mm, and since part is high by bright quenching hardness, tool wear is very acute in processing
Strong, realizing batch machining, there are few may.
Summary of the invention
The purpose of the present invention is to provide a kind of fixture for thin-walled parts high accurate hole away from grinding, make such zero
Part processes two inner holes on internal grinder, while guaranteeing hole size and pitch-row size.
Realize the technical solution of the object of the invention are as follows: a kind of fixture for thin-walled parts high accurate hole away from grinding,
It is made of primary clamp body clamp body, positioning sliding block, fixing seat, position block and pitch-row locating piece；
Primary clamp body clamp body is cylinder, and end face is provided with two-stage baltimore groove, and the cell wall and slot bottom of first order baltimore groove play guide rail
Effect, guarantee positioning sliding block Yangjing line direction sliding；Second level groove is used for location and installation position block, and second level slot bottom is opened
There is threaded hole to utilize bolt and pressing plate stationary positioned sliding block for installing position block, uniformly distributed threaded hole on primary clamp body clamp body end face；
Positioning sliding block is cuboid, and there are perforation screw thread via hole and counter sink in end face, for connecting with fixing seat；Positioning sliding block
Open two through-holes in center；
Fixing seat be it is cylindric, inner cavity is for accommodating part, and intracavity bottom has an inner hole, and there are multiple for fixing seat end face
Threaded hole utilizes bolt, platen clamp part；
Position block is plane on one side, with positioning sliding block, the cooperation of pitch-row locating piece for location hole away from another side is circular arc
Face is bonded with primary clamp body clamp body；Screw thread via hole and counterbore at two are opened in upper surface, for position block to be fixed on primary clamp body clamp body；
Pitch-row locating piece is cuboid, is arranged between positioning sliding block and position block, thickness is identical as pitch-row.
Compared with prior art, the invention has the benefit that (1) present invention uses novel clamp, it is successfully realized hole
The tolerance of carpenters square cun ± 0.01mm and the tolerance of hole size 0.005mm are processed, and ensure that product quality；
(2) the configuration of the present invention is simple, manufacturing cost is low, convenient for mounting and clamping, and one time batch machining can be completed in centering, common
Processing can be realized in internal grinder, instead of jig grinder, reduces processing cost, improves processing efficiency.
Detailed description of the invention
Fig. 1 is the clamp structure figure for thin-walled parts high accurate hole away from grinding.
Fig. 2 is primary clamp body clamp body schematic diagram.
Fig. 3 is positioning sliding block schematic diagram.
Fig. 4 is fixing seat schematic diagram.
Fig. 5 is position block schematic diagram.
Fig. 6 is pitch-row locating piece schematic diagram.
Fig. 7 is part schematic diagram in embodiment.
Fig. 8 is part machining sketch chart in embodiment.
Specific embodiment
As shown in Figure 1, a kind of fixture for thin-walled parts high accurate hole away from grinding of the invention, this set novel clamp
Tool is made of primary clamp body clamp body 1, positioning sliding block 2, fixing seat 3, position block 4 and pitch-row locating piece 5.
As shown in Fig. 2, primary clamp body clamp body 1 is cylinder, end face is provided with two-stage baltimore groove, and respectively the first order is recessed from top to bottom
Shape slot and second level baltimore groove, the cell wall and slot bottom of first order baltimore groove play the role of guide rail, guarantee 2 Yangjing row of positioning sliding block
Direction sliding, opens chip space at two at first order baltimore groove bottom both ends；Second level groove is used for location and installation position block 4, protects
It demonstrate,proves position block 4 and rear wall and the requirement of groove bottom verticality is installed no more than 0.005；Therefore the cell wall and slot bottom of two-stage baltimore groove
Face verticality is also required no more than 0.005.Second level slot bottom opens two threaded holes for installing position block 4, primary clamp body clamp body 1
Uniformly distributed four threaded holes, utilize standard bolt and pressing plate stationary positioned sliding block on end face.Outer circle two sides chamfered edge is used for loss of weight.Main folder
HRC45-50 is specifically quenched to using 40Cr material, is connect with machine tool chief axis using magnetic chuck.
As shown in figure 3, positioning sliding block 2 is cuboid, there are four perforation screw thread via hole and counter sinks for end face, are used for and fixation
Seat 3 connects.Six face verticalities of positioning sliding block require within 0.005.Two through-holes are opened in positioning sliding block center, by fixed
Position pin realizes pre-determined bit part direction.Pass through the translation accuracy guarantee pitch-row size of positioning fixture sliding block.
As shown in figure 4, fixing seat 3 be it is cylindric, for accommodating part, intracavity bottom has an inner hole, the inner hole for inner cavity
It is the hole axle cooperation with part outer circle fit clearance no more than 0.02, counterface positioning is realized positions part completely, guarantees
It is not more than 0.02mm with the outer circle fit clearance after Finishing Parts Machining.Recycle end face positioning, five freedom degree realities of limit feature
Now not exclusively positioning.Fixing seat end face is stayed there are three threaded hole, and bolt, platen clamp part are utilized.
As shown in figure 5,4 one side of position block be plane, with positioning sliding block, pitch-row locating piece cooperation for location hole away from,
The plane and two sidewalls, plane perpendicular degree require to be not more than 0.002.Another side is arc surface, is bonded with primary clamp body clamp body 1.
Screw thread via hole and counterbore at two are opened in upper surface, for position block 4 to be fixed on primary clamp body clamp body 1.
As shown in fig. 6, pitch-row locating piece 5 is cuboid, length dimension is identical as pitch-row, and tolerance is not more than 0.002mm, uses
In the sliding distance for guaranteeing positioning sliding block.
The present invention is parallel-moving type clamp, guarantees that two hole range errors are not more than 0.01mm, in process part
Clamped one time is only needed, dimension precision between the holes are guaranteed by the translation of positioning sliding block 2 and primary clamp body clamp body 1, it is vertical by the height of clamp body itself
It spends and guarantees that fixture prolongs a direction and moves in parallel jumping for no angular errors and other directions with the high depth of parallelism.
Below by embodiment, the present invention is described in detail.
Embodiment
As shown in Figure 7, Figure 8, a kind of high accurate speed reducer seat, part material be 18Cr2Ni4WA forging, HRC38-42, two
A inner hole is respectivelyPitch-row size 32.06 ± 0.01.
Steps are as follows for the application method of present clip:
(1) primary clamp body clamp body 1 is fixed on machine tool chief axis first by magnetic chuck, beats table centering outer circle and end face run-out
Amount is not more than 0.01；And position block 4 is connected through a screw thread and is fixed in primary clamp body clamp body 1；
(2) fixing seat 3 is installed on positioning sliding block 2 by screw；
(3) pitch-row locating piece 5, which is pre-machined, guarantees size 32.06 ± 0.002, and pitch-row locating piece 5, positioning sliding block 2 are pasted
Tightly, fitting is detected whether in place using clearance gauge, and with screw rod, pressing plate, nut stationary positioned sliding block 2, and removes pitch-row locating piece
5。
(4) part is mounted on intracavitary in fixing seat 3, is adjacent to end face, centering part direction and pre- centering, and use
Screw rod, pressing plate, nut compress.
(5) inner hole is processed with internal grinding head
(6) inner hole is processedAfterwards, pine removes the pressing plate of stationary positioned sliding block 2, and running fix sliding block 2 and positioning are kept off
4 end face of plate is adjacent to, and is detected whether fitting in place using clearance gauge, is reused screw rod, pressing plate, nut and fix.
(7) inner hole is processed with internal grinding head
Claims (9)
1. a kind of fixture for thin-walled parts high accurate hole away from grinding, which is characterized in that by primary clamp body clamp body (1), positioning
Sliding block (2), fixing seat (3), position block (4) and pitch-row locating piece (5) composition；
Primary clamp body clamp body (1) is cylinder, and end face is provided with two-stage baltimore groove, and the cell wall and slot bottom of first order baltimore groove play guide rail
Effect guarantees the sliding of positioning sliding block (2) Yangjing line direction；Second level groove is used for location and installation position block (4), second level slot
Bottom is provided with threaded hole, and for installing position block (4), primary clamp body clamp body is arranged threaded hole on end face, is fixed using bolt and pressing plate
Positioning sliding block (2)；
Positioning sliding block (2) is cuboid, and there are perforation screw thread via hole and counter sink in end face, for connecting with fixing seat (3)；Positioning is slided
It opens there are two through-hole block (2) center；
Fixing seat (3) be it is cylindric, inner cavity is for accommodating part, and intracavity bottom has an inner hole, and there are multiple for fixing seat end face
Threaded hole utilizes bolt, platen clamp part；
Position block (4) is plane on one side, with positioning sliding block (2), pitch-row locating piece (5) cooperation for location hole away from another side
For arc surface, it is bonded with primary clamp body clamp body；Screw thread via hole and counterbore at two are opened in upper surface, for position block to be fixed on main clamp
On body (1)；
Pitch-row locating piece (5) is cuboid, is arranged between positioning sliding block (2) and position block (4), thickness is identical as pitch-row.
2. according to claim 1 be used for fixture of the thin-walled parts high accurate hole away from grinding, which is characterized in that two-stage
The cell wall and groove bottom verticality of baltimore groove are not more than 0.005.
3. according to claim 1 be used for fixture of the thin-walled parts high accurate hole away from grinding, which is characterized in that main folder
Specifically the second level slot bottom of (1) opens two threaded holes, four uniformly distributed on primary clamp body clamp body (1) end face for installing position block (4)
Threaded hole is used for stationary positioned sliding block (2).
4. according to claim 1 be used for fixture of the thin-walled parts high accurate hole away from grinding, which is characterized in that first
Grade baltimore groove bottom and cell wall junction are provided with chip space.
5. according to claim 1 be used for fixture of the thin-walled parts high accurate hole away from grinding, which is characterized in that main folder
Specifically (1) outer circle two sides chamfered edge.
6. according to claim 1 be used for fixture of the thin-walled parts high accurate hole away from grinding, which is characterized in that main folder
Specifically (1) is quenched to HRC45-50 using 40Cr material, is connect with machine tool chief axis using magnetic chuck.
7. according to claim 1 be used for fixture of the thin-walled parts high accurate hole away from grinding, which is characterized in that positioning
(2) six face verticalities of sliding block are within 0.005.
8. according to claim 1 be used for fixture of the thin-walled parts high accurate hole away from grinding, which is characterized in that fixed
Seat (3) end face is circumferentially uniformly arranged three threaded holes, utilizes bolt, platen clamp part.
9. according to claim 1 be used for fixture of the thin-walled parts high accurate hole away from grinding, which is characterized in that positioning
The plane of block (4) and two sidewalls, plane perpendicular degree require to be not more than 0.002.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910732953.XA CN110480507A (en) | 2019-08-09 | 2019-08-09 | Fixture for thin-walled parts high accurate hole away from grinding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910732953.XA CN110480507A (en) | 2019-08-09 | 2019-08-09 | Fixture for thin-walled parts high accurate hole away from grinding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110480507A true CN110480507A (en) | 2019-11-22 |
Family
ID=68550446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910732953.XA Pending CN110480507A (en) | 2019-08-09 | 2019-08-09 | Fixture for thin-walled parts high accurate hole away from grinding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110480507A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201342503Y (en) * | 2009-02-06 | 2009-11-11 | 冯刚 | High-precision locator for pitch processing |
| US20120208440A1 (en) * | 2011-02-10 | 2012-08-16 | Seagate Technology Llc | Flexure assembly |
| CN104625811A (en) * | 2015-02-12 | 2015-05-20 | 广西玉柴机器股份有限公司 | Device applying bench drill for machining precise-pitch holes and machining method of device |
-
2019
- 2019-08-09 CN CN201910732953.XA patent/CN110480507A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201342503Y (en) * | 2009-02-06 | 2009-11-11 | 冯刚 | High-precision locator for pitch processing |
| US20120208440A1 (en) * | 2011-02-10 | 2012-08-16 | Seagate Technology Llc | Flexure assembly |
| CN104625811A (en) * | 2015-02-12 | 2015-05-20 | 广西玉柴机器股份有限公司 | Device applying bench drill for machining precise-pitch holes and machining method of device |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191122 |