CN2782289Y - High precision eccentric hole coreless grinding positioner - Google Patents
High precision eccentric hole coreless grinding positioner Download PDFInfo
- Publication number
- CN2782289Y CN2782289Y CN 200420075447 CN200420075447U CN2782289Y CN 2782289 Y CN2782289 Y CN 2782289Y CN 200420075447 CN200420075447 CN 200420075447 CN 200420075447 U CN200420075447 U CN 200420075447U CN 2782289 Y CN2782289 Y CN 2782289Y
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- China
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- positioner
- grinding
- magnetic conductive
- conductive disk
- centerless grinding
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Abstract
The utility model relates to a high precision eccentric hole coreless grinding positioning device, which comprises a work spindle, a grinding spindle, a reciprocating trailing bar, a feed trailing bar and a lathe body. The front end of the work spindle is provided with an electromagnetic coreless clamp (H). Moreover, the device is provided with a guiding magnetic disk and the center of the guiding magnetic disk is provided with a technological hole. Two positioning pin holes with key grooves are arranged on the guiding magnetic disk. Two positioning pins with key grooves are arranged in the positioning pin holes on the guiding magnetic disk through keys. One end of every positioning pin is provided with a screw hole which is provided with screws and shims for fixing the positioning pins on the guiding magnetic disk. The fit of the positioning pin holes and the positioning pins is precise transition fit. The other end of every positioning pin is also provided with a screw hole which is provided with screws and shims of pressing work pieces. The device can clamp the work pieces with the advantages of time saving and labor saving. In addition, the position accuracy and the dimensional accuracy of the holes are raised and the production efficiency is raised.
Description
Technical field:
The utility model relates to grinding machine Machining Technology field, a kind of high accuracy eccentric orfice centerless grinding positioner.
Background technology:
At present, use grinding machine to carry out the eccentric orfice grinding in the machining and adopt the grinding of centering filing, generally grinding on jig grinder or grinding machine of universal mostly.During grinding, workpiece is fixed on jig grinder, and the position of eccentric orfice determined by the coordinate position of platen, and during grinding, workpiece locate by the chuck clamping, beats the center that centering is treated grinding out of showing on grinding machine of universal.Take these method grinding eccentric orfices, the positional precision in hole and dimensional accuracy are not high, and the centering workload is big, and production efficiency is low, are not suitable for producing in batches.
Summary of the invention:
In order to solve the problem of above-mentioned existence, the utility model adopts a kind of high accuracy eccentric orfice centerless grinding positioner, make the center for the treatment of grinding out be converted into the centre of gyration, grinding eccentric orfice under the electric magnetic no-core clamp supporting, clamping is time saving and energy saving, improve the positional precision and the dimensional accuracy in hole, improved production efficiency.
The utility model is to adopt following technical scheme to realize:
Described high accuracy eccentric orfice centerless grinding positioner, this device is bearing on the electric magnetic no-core clamp on the grinding machine workpiece spindle, this device has magnetic conductive disk, the magnetic conductive disk center is provided with fabrication hole, magnetic conductive disk is provided with two dowel holes that have keyway, two alignment pins that have a keyway are contained in the dowel hole on the magnetic conductive disk by key, and dowel hole is that precise transition cooperates with cooperating of alignment pin; The two ends of alignment pin are provided with screw, and screw and pad all are housed above, an end fixed locating stud, other end workpiece pressing.
Described high accuracy eccentric orfice centerless grinding positioner, two alignment pins are the pins that have step.
Described high accuracy eccentric orfice centerless grinding positioner, it has radially upper support, radially lower support.
Owing to adopted technique scheme, the present invention to have following superiority:
Adopt the principle of centerless grinding, design new positioner, the center in hole to be ground is converted into the workpiece centre of gyration, grinding eccentric orfice under electric magnetic no-core clamp supports.The key of this scheme is to manufacture and design the hi-Fix magnetic conductive disk: the external diameter of magnetic conductive disk has strict demand to the perpendicularity of end face and the depth of parallelism of both ends of the surface, there is a fabrication hole bigger slightly than hole to be ground in disk center, two alignment pins are arranged on the end face, there is screwed hole the end of pin, and the size of two pins and distance have strict demand (shape and the position for the treatment of grinding out according to workpiece are determined); With the end face location of workpiece, with Work-sheet pressing, make the center for the treatment of grinding out be converted into the centre of gyration of dish with screw with the external diameter and the dish of two pins; Then, assembly is bearing in this eccentric orfice of grinding on the electric magnetic no-core clamp.
Owing to adopted this positioner, make the dimensional accuracy of eccentric orfice reach 0.005mm, circularity reaches 0.002mm, the hole reaches 0.003mm to the perpendicularity of datum end face, this hole reaches 0.01mm to the position degree of benchmark, makes the positional precision of eccentric orfice and dimensional accuracy that large increase arranged, and surface quality is good, clamping is time saving and energy saving, the production efficiency height is particularly useful for batch grinding porous disk-like accessory on bearing grinder.
Description of drawings:
Fig. 1 is the installation site figure of high accuracy eccentric orfice centerless grinding positioner on grinding machine;
Fig. 2 is a high accuracy eccentric orfice centerless grinding positioner H structure enlarged diagram.
Fig. 3 is the supporting structure schematic diagram of high accuracy eccentric orfice centerless grinding positioner.
Among the figure: 1-workpiece spindle, 2-electric magnetic no-core clamp, 3-electricity main shaft, the reciprocal planker of 4-, the 5-lathe bed, 6-feeding planker, 7-is upper support radially, 8-axially mounting (magnetic pole), the 9-screw, 10-pad, 11-screw, 12-pad, the 13-alignment pin, 14-key, 15-key, 16-alignment pin, the 17-pad, 18-screw, 19-pad, 20-screw, the 21-workpiece, the 22-magnetic conductive disk, 23-is lower support radially.
The specific embodiment:
As shown in fig. 1, high accuracy eccentric orfice centerless grinding positioner is bearing on the electric magnetic no-core clamp (2) on the grinding machine workpiece spindle (1), drives this device rotation by workpiece spindle (1), and electric main shaft (3) drives emery wheel and rotates at a high speed.As shown in Figure 2, according to the planform of the porous disc type work (21) of waiting to grind eccentric orfice, design and manufacture hi-Fix with wear-resistant magnetic conduction dish (22) and alignment pin (13,16).Magnetic conductive disk (22) center is provided with fabrication hole, magnetic conductive disk (22) is provided with two dowel holes that have keyway, magnetic conductive disk (22) both ends of the surface strictness is parallel, end face is strict vertical to external diameter, the positional precision of dowel hole improves one-level at least than the positional precision for the treatment of grinding out, with cooperating of alignment pin (13,16) be that precise transition cooperates.Alignment pin (13,16) external diameter is provided with step and keyway, and two ends are provided with screw, and the geometric parameter of alignment pin (13,16) is wanted strict control.Alignment pin (13,16) accurately is assemblied on the magnetic conductive disk (22), step with alignment pin (13,16) is made axial location, do circumferentially location with key (14,15), alignment pin (13,16) is fixed on the magnetic conductive disk (22) with screw (9,11) and pad (10,12).
Then, workpiece (21) accurately is assemblied on the magnetic conductive disk (22), is the benchmark location with the big external diameter of alignment pin (13,16) and magnetic conductive disk (22) end face, with pad (17,19) pad on workpiece (21), with screw (18,20) workpiece (21) is compressed, component assembling finishes.
During grinding, outer diameter A with magnetic conductive disk (22) is the radial location benchmark, end face B is the axial location benchmark, two fulcrums (7 with electric magnetic no-core clamp (2), 23) do radial support, magnetic pole (8) end face is done axially mounting, assembly is bearing on the adjusted good electric magnetic no-core clamp of offset (2), make workpiece (21) treat that the center of grinding out is converted into the centre of gyration of magnetic conductive disk (22), go up magnetic then, the rotation of workpiece spindle (1) driven unit, feeding planker (6) drives the horizontal precision feeding of assembly, electricity main shaft (3) drives emery wheel and rotates at a high speed, back and forth planker (4) drives the vertical reciprocating feed of emery wheel, suitably regulates grinding parameter, thereby realizes the accurate grinding of eccentric orfice.
After grinding finishes, assembly is taken off from electric magnetic no-core clamp (2), lie on the workbench, unclamp screw (18,20), carefully take off workpiece (21), change workpiece (21) or change grinding position, then, repeat above-mentioned workpiece (21) in installation step on the magnetic conductive disk (22) and the grinding step on electric magnetic no-core clamp (2), continue the grinding eccentric orfice.
Claims (3)
1, a kind of high accuracy eccentric orfice centerless grinding positioner, it includes work spindle (1), grinding wheel spindle (3), reciprocal planker (4), feeding planker (6), bed body (5), it is characterized in that: described centerless grinding positioner, fore device-electric magnetic no-core clamp one (H) at workpiece transmission main shaft (1), this device is provided with magnetic conductive disk (22), the magnetic conductive disk center is provided with fabrication hole, two dowel holes that have keyway are arranged, two alignment pins (13 that have keyway on the magnetic conductive disk, 16) by key (14,15) be contained in the dowel hole on the magnetic conductive disk (22) alignment pin (13,16) a end is provided with screw, be equipped with above alignment pin (13,16) be fixed on screw (9 on the magnetic conductive disk (22), 11) and pad (10,12), dowel hole and alignment pin (13,16) cooperation is that precise transition cooperates; The other end of alignment pin (13,16) also is provided with screw, and the screw (18,20) and the pad (17,19) of workpiece pressing (21) is housed above.
2, high accuracy eccentric orfice centerless grinding positioner according to claim 1 is characterized in that: described centerless grinding positioner, and it has a bearing support (23), and two alignment pins are the pins that have step.
3, high accuracy eccentric orfice centerless grinding positioner according to claim 1 is characterized in that: described centerless grinding positioner has radially upper support (7), radially lower support (23) on its positioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075447 CN2782289Y (en) | 2004-12-21 | 2004-12-21 | High precision eccentric hole coreless grinding positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075447 CN2782289Y (en) | 2004-12-21 | 2004-12-21 | High precision eccentric hole coreless grinding positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2782289Y true CN2782289Y (en) | 2006-05-24 |
Family
ID=36767284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420075447 Expired - Fee Related CN2782289Y (en) | 2004-12-21 | 2004-12-21 | High precision eccentric hole coreless grinding positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2782289Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785109A (en) * | 2012-08-14 | 2012-11-21 | 资阳晨风电气有限公司 | Clamp for turning inner hole of cable clamp |
-
2004
- 2004-12-21 CN CN 200420075447 patent/CN2782289Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785109A (en) * | 2012-08-14 | 2012-11-21 | 资阳晨风电气有限公司 | Clamp for turning inner hole of cable clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060524 Termination date: 20100121 |