CN110977559A - Clamp for positioning milling hole of impeller - Google Patents
Clamp for positioning milling hole of impeller Download PDFInfo
- Publication number
- CN110977559A CN110977559A CN201911373050.3A CN201911373050A CN110977559A CN 110977559 A CN110977559 A CN 110977559A CN 201911373050 A CN201911373050 A CN 201911373050A CN 110977559 A CN110977559 A CN 110977559A
- Authority
- CN
- China
- Prior art keywords
- hole
- air passing
- positioning pin
- positioning
- air
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a clamp for positioning a milling hole of an impeller. Compressed air is released by the machine tool, the air is transmitted to the positioning cylinder of the positioning pin through the first air passing pore channel, the second air passing pore channel and the third air passing pore channel in sequence, a uniform air film is formed by the compressed air extruded through the third air passing pore channel, the gap between the positioning pin and the part positioning hole is eliminated, the positioning precision is ensured, and meanwhile, the advantages of simple structure, easiness in operation and no limitation of the size of a part are achieved; is particularly suitable for processing impellers.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to a clamp for positioning milling holes of an impeller.
Background
Currently, hole positioning mainly depends on a positioning pin and an expansion mandrel.
Positioning pins: mainly affected by the part hole accuracy. The positioning pin hole is generally between-0.005 and-0.008 of the tolerance below the part positioning hole; the unilateral minimum of the positioning gap is 0.003; the general tolerance of the precision hole is 0.008; the positioning accuracy of the positioning pin is generally about 0.015.
Expanding the mandrel: at present, the market has no specification below 4mm, so the use is limited by the specification; the positioning accuracy of the expansion mandrel is generally within 0.005, but the expansion mandrel is easy to damage and high in price and cost.
Disclosure of Invention
In order to solve the technical problem, the invention provides a clamp for positioning a milling hole of an impeller.
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
The invention adopts the following technical scheme:
in some alternative embodiments, there is provided a fixture for locating a milling bore of an impeller, comprising: a positioning pin and a clamp interface; the fixture comprises a fixture interface, a positioning pin and a part, wherein the fixture interface is provided with a first air passing pore passage, the positioning pin is provided with a second air passing pore passage and a third air passing pore passage communicated with the second air passing pore passage, an air outlet of the third air passing pore passage is positioned on the surface of the positioning pin contacted with a central hole of the part, and when the positioning pin is assembled on the fixture interface, the second air passing pore passage is communicated with the first air passing pore passage.
In some optional embodiments, one end of the clamp interface is provided with a connecting hole for butting with a machine tool interface, and the other end of the clamp interface is provided with a containing hole for containing the positioning pin; one end of the first air passing pore passage is communicated with the connecting hole, and the other end of the first air passing pore passage is communicated with the accommodating hole; when the positioning pin is positioned in the accommodating hole, the second air passing hole channel is communicated with the first air passing hole channel.
In some optional embodiments, the fixture for locating the milling hole of the impeller further comprises: and the air outlet of the air compressor is communicated with the accommodating hole through a pipeline.
In some optional embodiments, the fixture for locating the milling hole of the impeller further comprises: a screw; and a screw hole is formed in the positioning pin, and the positioning pin is fixed on the clamp interface through the screw.
The invention has the following beneficial effects: compressed air is released by the machine tool, the air is transmitted to the positioning cylinder of the positioning pin through the first air passing pore channel, the second air passing pore channel and the third air passing pore channel in sequence, a uniform air film is formed by the compressed air extruded through the third air passing pore channel, the gap between the positioning pin and the part positioning hole is eliminated, the positioning precision is ensured, and meanwhile, the advantages of simple structure, easiness in operation and no limitation of the size of a part are achieved; is particularly suitable for processing impellers.
Drawings
FIG. 1 is a schematic structural diagram of a fixture for locating milling holes of an impeller according to the invention.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others.
In some illustrative embodiments, as shown in fig. 1, there is provided a fixture for locating a milling bore of an impeller, comprising: locating pin 1, anchor clamps interface 2 and screw 3.
One end of the clamp interface 2 is provided with a connecting hole 21, the other end of the clamp interface is provided with a containing hole 22, the connecting hole 21 is used for being in butt joint with a machine tool interface, and the containing hole 22 is matched with the positioning pin 1 and used for assembling the positioning pin 1.
The fixture interface 2 is further provided with a first air passing hole 23, one end of the first air passing hole 23 is communicated with the connecting hole 21, and the other end of the first air passing hole 23 is communicated with the accommodating hole 22.
The positioning pin 1 is provided with two second air passing pore passages 11 and two third air passing pore passages 12, and the two third air passing pore passages 12 are positioned at two sides of the second air passing pore passages 11 and communicated with the second air passing pore passages 11. The air outlet of the third air passing hole 12 is positioned on the surface of the positioning pin 1 contacting with the central hole of the part 4, and when the positioning pin 1 is positioned in the accommodating hole 22, the second air passing hole 11 is communicated with the first air passing hole 23.
The positioning pin 1 is provided with a screw hole, and the positioning pin 1 is fixed on the clamp interface 2 through a screw 3.
The invention also includes: and an air compressor arranged on the machine tool, wherein an air outlet of the air compressor is communicated with the accommodating hole 22 through a pipeline. Compressed air is released by the machine tool, enters the first air passing pore passage 23 from the accommodating hole 22, then enters the second air passing pore passage 11, finally enters the third air passing pore passage 12, and is finally transmitted to the positioning pin positioning cylinder, and a uniform air film is formed by the compressed air extruded through the third air passing pore passage 12 of the positioning pin, so that the gap between the positioning pin 1 and the positioning hole of the part 4 is eliminated.
When the clamp is used, the clamp is assembled firstly, the first air passing hole channel 23 and the second air passing hole channel 11 are connected in an abutting mode through the positioning pin 1 and the clamp connector 2, and the screw 3 is locked. Then the clamp is butted and fixed with a machine tool interface through a clamp interface 2. Then, after the central hole of the part 4 is matched with the positioning pin 1, the single-side clearance is about 0.006-0.02. And finally, releasing compressed air by the machine tool, sequentially passing through the first air passing pore passage 23, the second air passing pore passage 11 and the third air passing pore passage 12, transmitting the compressed air to the positioning pin positioning cylinder, and forming a uniform air film by the compressed air extruded through the third air passing pore passage 12 of the positioning pin so as to eliminate the gap between the positioning pin and the part positioning hole.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
Claims (4)
1. A fixture for locating milling holes in an impeller, comprising: a positioning pin and a clamp interface; the fixture comprises a fixture interface, a positioning pin and a part, wherein the fixture interface is provided with a first air passing pore passage, the positioning pin is provided with a second air passing pore passage and a third air passing pore passage communicated with the second air passing pore passage, an air outlet of the third air passing pore passage is positioned on the surface of the positioning pin contacted with a central hole of the part, and when the positioning pin is assembled on the fixture interface, the second air passing pore passage is communicated with the first air passing pore passage.
2. The clamp for positioning the milling hole of the impeller according to claim 2, wherein one end of the clamp interface is provided with a connecting hole for butting with a machine tool interface, and the other end of the clamp interface is provided with a receiving hole for receiving the positioning pin; one end of the first air passing pore passage is communicated with the connecting hole, and the other end of the first air passing pore passage is communicated with the accommodating hole; when the positioning pin is positioned in the accommodating hole, the second air passing hole channel is communicated with the first air passing hole channel.
3. The fixture for locating a milling hole of an impeller according to claim 2, further comprising: and the air outlet of the air compressor is communicated with the accommodating hole through a pipeline.
4. The fixture for locating a milling hole of an impeller according to claim 3, further comprising: a screw; and a screw hole is formed in the positioning pin, and the positioning pin is fixed on the clamp interface through the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911373050.3A CN110977559A (en) | 2019-12-27 | 2019-12-27 | Clamp for positioning milling hole of impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911373050.3A CN110977559A (en) | 2019-12-27 | 2019-12-27 | Clamp for positioning milling hole of impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110977559A true CN110977559A (en) | 2020-04-10 |
Family
ID=70077754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911373050.3A Pending CN110977559A (en) | 2019-12-27 | 2019-12-27 | Clamp for positioning milling hole of impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110977559A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114029685A (en) * | 2021-12-02 | 2022-02-11 | 江苏谦益实业有限公司 | Elevator structure welding position device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01210239A (en) * | 1988-02-17 | 1989-08-23 | Hitachi Ltd | Pallet positioning device |
| CN102513842A (en) * | 2011-12-15 | 2012-06-27 | 河南科技大学 | Pneumatic elastic chuck |
| CN103084899A (en) * | 2013-03-06 | 2013-05-08 | 中核（天津）机械有限公司 | Motor stator lathing clamp |
| CN204471254U (en) * | 2015-03-16 | 2015-07-15 | 南车戚墅堰机车有限公司 | Utilize the device of ventilation round orifices orientation tubing |
| CN108466202A (en) * | 2018-05-23 | 2018-08-31 | 新界泵业集团股份有限公司 | The detection positioning device of Thin-wall Revolving Part |
| CN109318020A (en) * | 2018-11-12 | 2019-02-12 | 合肥工业大学 | A kind of gas-monitoring and air bearing positioning spigot seat and piston processing method suitable for Piston Machining |
| CN110170859A (en) * | 2019-06-28 | 2019-08-27 | 无锡微硕精密机械制造有限公司 | A kind of Five-axis NC Machining Center milling impeller fixture |
-
2019
- 2019-12-27 CN CN201911373050.3A patent/CN110977559A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01210239A (en) * | 1988-02-17 | 1989-08-23 | Hitachi Ltd | Pallet positioning device |
| CN102513842A (en) * | 2011-12-15 | 2012-06-27 | 河南科技大学 | Pneumatic elastic chuck |
| CN103084899A (en) * | 2013-03-06 | 2013-05-08 | 中核（天津）机械有限公司 | Motor stator lathing clamp |
| CN204471254U (en) * | 2015-03-16 | 2015-07-15 | 南车戚墅堰机车有限公司 | Utilize the device of ventilation round orifices orientation tubing |
| CN108466202A (en) * | 2018-05-23 | 2018-08-31 | 新界泵业集团股份有限公司 | The detection positioning device of Thin-wall Revolving Part |
| CN109318020A (en) * | 2018-11-12 | 2019-02-12 | 合肥工业大学 | A kind of gas-monitoring and air bearing positioning spigot seat and piston processing method suitable for Piston Machining |
| CN110170859A (en) * | 2019-06-28 | 2019-08-27 | 无锡微硕精密机械制造有限公司 | A kind of Five-axis NC Machining Center milling impeller fixture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114029685A (en) * | 2021-12-02 | 2022-02-11 | 江苏谦益实业有限公司 | Elevator structure welding position device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104942511A (en) | Positioning device for exhaust pipe | |
| CN110977559A (en) | Clamp for positioning milling hole of impeller | |
| CN109396894B (en) | Clamp body for machining intermediate casing surface and hole | |
| CN202621997U (en) | Clamp for drilling normal direction holes | |
| CN204843365U (en) | Blast pipe positioner | |
| CN104511614A (en) | Method for drilling into round nut | |
| CN203484933U (en) | Clamping mechanism for turning internal arc surface of valve block | |
| CN105652391A (en) | Positioning tool for ceramic ferrule of optical fiber connector | |
| CN102069400A (en) | Error-proof part clamping clamp | |
| CN104353872A (en) | Drill positioning guider | |
| CN212672652U (en) | Pipe joint | |
| CN205110881U (en) | General high accuracy hole join in marriage brill jig | |
| CN212443302U (en) | Lathe high accuracy quick change three-jaw clamping device | |
| CN210998178U (en) | High-stability wear-resistant wandering star wheel for polishing mobile phone screen | |
| CN205520632U (en) | Backplate adds clamping apparatus | |
| CN105643325A (en) | Processing tool for mounting rack of optical fiber fusion splicer | |
| CN220575337U (en) | Clamping device of machine tool clamp | |
| CN206519748U (en) | A kind of engine lathe beveled aperture Special Fixture for Machining | |
| CN105364120B (en) | Ensure the multiple connected fittings of different pore size and processing method of hole concentricity | |
| CN110405425B (en) | Machining process for thermostat shell | |
| CN104889453A (en) | Drilling template used for drilling and deviation correction method for installing hole of drilling sleeve | |
| CN211249216U (en) | Tool of guide wheel eccentric taper pin clamp | |
| WO1989003276A1 (en) | Method and apparatus for aligning two components | |
| CN109877604A (en) | A kind of quick clamping apparatus in top | |
| CN212122451U (en) | Supporting pin groove milling tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20200410 |
|
| RJ01 | Rejection of invention patent application after publication |