CN210549765U - Repeated positioning microsphere reference fixture for turning - Google Patents
Repeated positioning microsphere reference fixture for turning Download PDFInfo
- Publication number
- CN210549765U CN210549765U CN201921680578.0U CN201921680578U CN210549765U CN 210549765 U CN210549765 U CN 210549765U CN 201921680578 U CN201921680578 U CN 201921680578U CN 210549765 U CN210549765 U CN 210549765U
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- China
- Prior art keywords
- microsphere
- base
- clamping head
- valve plug
- workpiece clamping
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- 239000004005 microsphere Substances 0.000 title claims abstract description 83
- 238000007514 turning Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 description 8
- 238000003754 machining Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000007516 diamond turning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
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Abstract
The utility model discloses a turning is with repeated positioning microballon benchmark anchor clamps. The reference fixture comprises a base, a valve plug and a microsphere workpiece clamping head, and is connected with a vacuum chuck of a lathe spindle in a negative pressure adsorption mode and ensures the axial repeated positioning precision. The microsphere workpiece clamping head and the valve plug are arranged on the base, the valve plug controls the opening and closing states of a gas path between the base and the microsphere workpiece clamping head, and the taper hole of the microsphere workpiece clamping head is used for installing a microsphere workpiece and realizing the same rotation center of the microsphere workpiece and the reference fixture. The valve plug is closed to form a negative pressure sealing cavity in the gas path channel, so that the fixed positioning of the reference fixture and the microsphere workpiece is realized, and the position of the reference fixture at the rotation center of the main shaft is accurately corrected in a meter printing mode, so that the requirement of high repeated positioning precision is met. The utility model discloses a turning is with repeated positioning microballon benchmark anchor clamps can satisfy the repeated clamping processing demand of many sizes microballon, has precision height, simple structure, low in manufacturing cost, the wide advantage of range of application.
Description
Technical Field
The utility model belongs to the technical field of accurate microfabrication, concretely relates to turning is with repeated positioning microballon benchmark anchor clamps.
Background
In scientific research and production activities, diamond turning is an effective method for realizing the forming processing of the surface characteristic structure of the polymer microsphere. In order to meet the process requirements of forming and processing the surface characteristic structure of the microsphere, the polymer microsphere is required to be repeatedly installed and positioned in a diamond lathe with high precision. Because the polymer microspheres have the characteristics of small diameter size, low mechanical strength and the like, the traditional mechanical clamping and positioning method cannot meet the requirements, and a corresponding repeatable positioning clamp needs to be established for the polymer microspheres with the diameter of less than 5mm so as to meet the requirements of microsphere repeated installation and high-precision positioning.
Disclosure of Invention
The utility model aims to solve the technical problem that a repeated positioning microballon benchmark anchor clamps are provided for turning.
The utility model discloses a turning is with repeated location microballon benchmark anchor clamps, characterized in that, the benchmark anchor clamps include base, valve stopper, microballon work piece holding head;
the base is a stepped rotary body and comprises an upper circular table, a middle circular table and a lower circular table, the diameters of the upper circular table, the middle circular table and the lower circular table are sequentially increased from top to bottom, the outer circumferential surface of the middle circular table is a radial reference surface, the bottom surface of the lower circular table is an axial reference surface, and position marking lines are engraved on the outer circumferential surface of the lower circular table; a central shaft of the base is provided with a mounting hole and a base gas path channel which are communicated from top to bottom, and an upper round platform of the base is provided with a threaded hole vertical to the base gas path channel; the diameter of the threaded hole is larger than that of the air passage of the base.
The valve plug is a flat head screw;
the clamping head of the microsphere workpiece is also a stepped rotary body and comprises a frustum and a circular truncated cone, the diameters of which are sequentially increased from top to bottom, and the major diameter of the frustum is smaller than that of the circular truncated cone; a positioning taper hole and a microsphere workpiece clamping head gas path channel which are communicated are arranged on a central shaft of the microsphere workpiece clamping head from top to bottom;
the round table of the microsphere workpiece clamping head is fixed in the mounting hole; the valve plug is arranged in the threaded hole of the base;
the operation flow of the reference clamp is as follows: installing a clamping head and a valve plug of a microsphere workpiece on a base, closing the valve plug, enabling a position marking line on the base to coincide with a marking position on a lathe spindle, installing a reference fixture on a vacuum chuck of the lathe, opening a switch of the spindle vacuum chuck, marking a radial reference surface, observing a circular run-out value of the radial reference surface, adjusting the rotation center position of the fixture on the lathe spindle, machining a positioning taper hole, opening the valve plug and installing the microsphere workpiece;
the positioning taper hole and the radial reference surface are coaxial.
The circle run-out value of the radial reference surface of the base is less than 1 mu m; the axial repeated installation positioning precision of the base is less than 2 mu m.
The valve plug is made of nylon.
the cone angle range of the positioning taper hole of the microsphere workpiece clamping head is 30-120 degrees, and the clamping range S of the microsphere workpiece clamping head is 0.4 mm-S in the center and 5mm in the center.
The utility model discloses a turning is connected and guarantees the axial repeated positioning precision with the vacuum chuck of repeated positioning microballon benchmark anchor clamps adoption negative pressure adsorption mode and lathe spindle. The microsphere workpiece clamping head and the valve plug are arranged on the base, the valve plug controls the opening and closing states of a gas path between the base and the microsphere workpiece clamping head, and the taper hole of the microsphere workpiece clamping head is used for installing a microsphere workpiece and realizing the same rotation center of the microsphere workpiece and the reference fixture. The valve plug is closed to form a negative pressure sealing cavity in the gas path channel, so that the fixed positioning of the reference fixture and the microsphere workpiece is realized, and the position of the reference fixture at the rotation center of the main shaft is accurately corrected in a meter printing mode, so that the requirement of high repeated positioning precision is met.
The utility model discloses a turning is with repeated positioning microballon benchmark anchor clamps simple structure, the precision is high, and the cost of manufacture is low, and the range of application is wide.
Drawings
FIG. 1 is a cross-sectional view of the structure of the repeated positioning microsphere reference fixture for turning of the present invention;
FIG. 2 is a cross-sectional view of the microsphere workpiece holder in the re-positioning microsphere reference fixture for turning according to the present invention;
in the drawing, 1, a base 2, a valve plug 3, a microsphere workpiece clamping head 11, a mounting hole 12, a base gas path channel 13, a threaded hole 14, a radial datum plane 15, a position marking line 16, an axial datum plane 31, a microsphere workpiece clamping head gas path channel 32 and a positioning taper hole are arranged.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, the microsphere datum fixture for repeated positioning for turning of the utility model comprises a base 1, a valve plug 2 and a microsphere workpiece clamping head 3;
the base 1 is a stepped rotary body and comprises an upper circular table, a middle circular table and a lower circular table, the diameters of the upper circular table, the middle circular table and the lower circular table are sequentially increased from top to bottom, the outer circumferential surface of the middle circular table is a radial reference surface 14, the bottom surface of the lower circular table is an axial reference surface 16, and a position marking line 15 is carved on the outer circumferential surface of the lower circular table; a central shaft of the base 1 is provided with a mounting hole 11 and a base air passage channel 12 which are communicated from top to bottom, and an upper round table of the base 1 is provided with a threaded hole 13 which is vertical to the base air passage channel 12; the diameter of the threaded hole 13 is larger than that of the base air passage 12.
The valve plug 2 is a flat head screw;
the microsphere workpiece clamping head 3 is also a stepped rotary body and comprises a frustum and a circular truncated cone, the diameters of which are sequentially increased from top to bottom, and the major diameter of the frustum is smaller than that of the circular truncated cone; a positioning taper hole 32 and a microsphere workpiece clamping head gas path channel 31 which are communicated are arranged on the central shaft of the microsphere workpiece clamping head 3 from top to bottom;
the round table of the microsphere workpiece clamping head 3 is fixed in the mounting hole 11; the valve plug 2 is mounted in a threaded hole 13 of the base 1.
The operation flow of the reference clamp is as follows: installing a microsphere workpiece clamping head 3 and a valve plug 2 on a base 1, closing the valve plug 2, coinciding a position marking line 15 on the base 1 with a marking position on a lathe spindle, installing a reference fixture on a lathe vacuum chuck, opening a switch of the spindle vacuum chuck, marking a radial reference surface 14, observing a circular runout value of the radial reference surface, adjusting the rotation center position of the fixture on the lathe spindle, machining a positioning taper hole 32, opening the valve plug 2 and installing a microsphere workpiece;
the positioning taper hole 32 is coaxial with the radial reference surface 14.
The circle run-out value of the radial reference surface 14 of the base 1 is less than or equal to 1 μm; the axial repeated installation positioning precision of the base 1 is less than or equal to 2 mu m.
The valve plug 2 is made of nylon.
the cone angle range of the positioning taper hole 32 of the microsphere workpiece clamping head 3 is 30-120 degrees, and the clamping range S of the microsphere workpiece clamping head 3 is 0.4 mm-S in the center and 5mm in the center.
Example 1
the repeated positioning microsphere reference fixture for turning in the embodiment is suitable for polymer microspheres with the diameter of 0.8mm in S, the circular runout of the radial reference surface 4 is 0.6 mu m, the repeated positioning precision of the axial reference surface is 1.2 mu m, and the included angle of the microsphere workpiece clamping head 2 is 60 degrees.
The working process of the embodiment is as follows:
firstly, a valve plug 2 and a microsphere workpiece clamping head 3 are installed on a base 1, the microsphere workpiece clamping head 3 and the base 1 are adhered by glue to assemble a reference fixture, the valve plug 2 is closed, the reference fixture is installed on a machine tool vacuum chuck, meanwhile, a position marking line 15 on the base 1 is overlapped with a marking position on a lathe spindle, a switch of the spindle vacuum chuck is opened, the base 1 is fixed on a lathe spindle, a dial gauge is used for marking and adjusting the position of the reference fixture on the lathe spindle, the circle run-out value of the radial reference surface 14 is recorded as 0.6 micrometer, a positioning taper hole 32 with an included angle of 60 degrees is machined on the end face of the microsphere workpiece clamping head 3, the valve plug 2 is opened, a polymer microsphere with the diameter of S Ø 0.8mm is placed at the positioning taper hole 11, the vacuum pressure on the vacuum chuck is switched on, the microsphere is adsorbed and locked on the microsphere workpiece clamping head 2, the microsphere workpiece clamping fixture is automatically centered with the reference fixture, the microsphere workpiece is taken as an integral workpiece, the workpiece to be machined according to the requirement of the microsphere to the machining of the microsphere spindle, the microsphere workpiece is sequentially closed, the spindle vacuum chuck is sequentially, the microsphere workpiece is adjusted, the microsphere workpiece is repeatedly positioned on the spindle, the spindle vacuum chuck is repeatedly positioned on the spindle, the reference fixture, the microsphere fixture is repeatedly positioned on the spindle, the microsphere fixture is adjusted, the microsphere fixture, the spindle, the microsphere fixture is adjusted, the microsphere is repeatedly positioned on the spindle, the workpiece is adjusted, the spindle, the workpiece is adjusted, the workpiece is repeatedly positioned, the workpiece is adjusted, the.
Example 2
the embodiment is basically the same as that of embodiment 1, and the main difference is that the repeated positioning microsphere reference fixture for turning in this embodiment is suitable for polymer microspheres with the diameter S as far as 2mm, the circular run-out of the radial reference surface 4 is 0.8 μm, the repeated positioning accuracy of the axial reference surface is 1.2 μm, and the included angle of the microsphere workpiece clamping head 2 is 90 °.
Example 3
the embodiment is basically the same as that of embodiment 1, and the main difference is that the repeated positioning microsphere reference fixture for turning in this embodiment is suitable for polymer microspheres with the diameter S as far as 4mm, the radial reference plane 4 circular run-out is 0.6 μm, the repeated positioning precision of the axial reference plane is 1.3 μm, and the included angle of the microsphere workpiece clamping head 2 is 120 °.
It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.
Claims (4)
1. The utility model provides a turning is with repeated location microballon benchmark anchor clamps which characterized in that: the reference fixture comprises a base (1), a valve plug (2) and a microsphere workpiece clamping head (3);
the base (1) is a stepped rotary body and comprises an upper circular table, a middle circular table and a lower circular table, the diameters of the upper circular table, the middle circular table and the lower circular table are sequentially increased from top to bottom, the outer circumferential surface of the middle circular table is a radial reference surface (14), the bottom surface of the lower circular table is an axial reference surface (16), and position marking lines (15) are carved on the outer circumferential surface of the lower circular table; a central shaft of the base (1) is provided with a mounting hole (11) and a base air channel (12) which are communicated from top to bottom, and an upper round table of the base (1) is provided with a threaded hole (13) which is vertical to the base air channel (12); the diameter of the threaded hole (13) is larger than that of the base air passage channel (12);
the valve plug (2) is a flat head screw;
the microsphere workpiece clamping head (3) is also a stepped rotary body and comprises a frustum and a circular truncated cone, the diameters of the frustum and the circular truncated cone are sequentially increased from top to bottom, and the major diameter of the frustum is smaller than the diameter of the circular truncated cone; a positioning taper hole (32) and a microsphere workpiece clamping head gas path channel (31) which are communicated are arranged on the central shaft of the microsphere workpiece clamping head (3) from top to bottom;
the round table of the microsphere workpiece clamping head (3) is fixed in the mounting hole (11); the valve plug (2) is arranged in a threaded hole (13) of the base (1).
2. The repeated positioning microsphere reference fixture for turning according to claim 1, wherein: the operation flow of the reference clamp is as follows: the method comprises the following steps that a microsphere workpiece clamping head (3) and a valve plug (2) are installed on a base (1), the valve plug (2) is closed, a position marking line (15) on the base (1) is overlapped with a marking position on a lathe spindle, a reference fixture is installed on a lathe vacuum chuck, a switch of the spindle vacuum chuck is opened, a radial reference surface (14) is marked with a surface to observe a circular runout value of the spindle vacuum chuck, the position of a rotation center of the fixture on the lathe spindle is adjusted, a positioning taper hole (32) is machined, the valve plug (2) is opened, and a microsphere workpiece is installed;
the positioning taper hole (32) and the radial reference surface (14) are coaxial with the rotation axis.
3. The repeated positioning microsphere reference fixture for turning according to claim 1, wherein: the circle run-out value of the radial reference surface (14) of the base (1) is less than or equal to 1 mu m; the axial repeated installation positioning precision of the base (1) is less than or equal to 2 mu m.
4. the repeated positioning microsphere reference fixture for turning according to claim 1, wherein the cone angle range of the positioning taper hole (32) of the microsphere workpiece clamping head (3) is 30-120 degrees, and the clamping range S of the microsphere workpiece clamping head (3) is 0.4-5 mm longer than S longer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921680578.0U CN210549765U (en) | 2019-10-10 | 2019-10-10 | Repeated positioning microsphere reference fixture for turning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921680578.0U CN210549765U (en) | 2019-10-10 | 2019-10-10 | Repeated positioning microsphere reference fixture for turning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210549765U true CN210549765U (en) | 2020-05-19 |
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ID=70669654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921680578.0U Expired - Fee Related CN210549765U (en) | 2019-10-10 | 2019-10-10 | Repeated positioning microsphere reference fixture for turning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210549765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110524291A (en) * | 2019-10-10 | 2019-12-03 | 中国工程物理研究院激光聚变研究中心 | A kind of turning resetting microballoon benchmark fixture |
-
2019
- 2019-10-10 CN CN201921680578.0U patent/CN210549765U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110524291A (en) * | 2019-10-10 | 2019-12-03 | 中国工程物理研究院激光聚变研究中心 | A kind of turning resetting microballoon benchmark fixture |
| CN110524291B (en) * | 2019-10-10 | 2024-07-19 | 中国工程物理研究院激光聚变研究中心 | Repeated positioning microsphere benchmark anchor clamps for turning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 |