CN114054826A - A milling fixture for improving the efficiency of frame clamping, positioning and alignment - Google Patents
A milling fixture for improving the efficiency of frame clamping, positioning and alignment Download PDFInfo
- Publication number
- CN114054826A CN114054826A CN202111358329.1A CN202111358329A CN114054826A CN 114054826 A CN114054826 A CN 114054826A CN 202111358329 A CN202111358329 A CN 202111358329A CN 114054826 A CN114054826 A CN 114054826A
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- positioning
- frame
- hole
- mandrel
- base body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
-
- 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
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- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
本发明提出一种用于提高框架装夹定位找正效率的铣夹具，包括夹具基体、支撑柱、芯轴阶梯台、压板、紧固螺母、螺柱和定位销。本夹具采用两孔一面定位方式，以在基体平面安装的支撑柱高精度平面作为框架的平面基准，以可拆卸式芯轴阶梯台作为框架的内孔定位基准，以定位销作为框架的转动角度定位基准，使用压板将框架压紧后，用紧固螺母将压板锁紧，实现对框架的高精度定位。本夹具结构简单，制造和拆卸方便，能快速完成多种框架装夹的定位找正，能实现对多种尺寸框架的快速换产，成本较低。
The invention provides a milling fixture for improving the efficiency of frame clamping, positioning and alignment. The fixture adopts the positioning method of two holes and one side. The high-precision plane of the support column installed on the base plane is used as the plane reference of the frame, the detachable mandrel step table is used as the positioning reference of the inner hole of the frame, and the positioning pin is used as the rotation angle of the frame. Positioning reference, after pressing the frame with the pressure plate, lock the pressure plate with the tightening nut to achieve high-precision positioning of the frame. The fixture has the advantages of simple structure, convenient manufacture and disassembly, can quickly complete the positioning and alignment of the clamping of various frames, and can realize the rapid production change of the frames of various sizes, and the cost is low.
Description
Technical Field
The invention belongs to the technical field of cutting machining, and particularly relates to a milling clamp for improving the clamping, positioning and aligning efficiency of a frame.
Background
The precision frame type workpiece needs to be limited and aligned in multiple directions in the machining process, the traditional clamping mode is usually fixed on an operation table top of a machining center, the position of a pressing plate is repeatedly adjusted, and the pressing plate is measured by a meter to be positioned and aligned, so that the time consumption is long, and the efficiency is low.
Disclosure of Invention
Technical problem to be solved
The invention provides a milling fixture for improving the clamping, positioning and aligning efficiency of a frame, and aims to solve the technical problem of how to improve the clamping, positioning and aligning efficiency of the frame.
(II) technical scheme
In order to solve the technical problem, the invention provides a milling clamp for improving the clamping, positioning and aligning efficiency of a frame, which comprises a clamp base body, a support column, a mandrel step, a pressure plate, a fastening nut, a stud and a positioning pin; the center of the upper surface of the clamp base body is provided with a threaded hole and a mandrel positioning hole which are coaxial, and the stud is screwed into the threaded hole through the bottom end thread and then is fixedly connected with the base body; the mandrel step is sleeved in the stud through the central hole, the small-diameter end of the mandrel step is inserted into the mandrel positioning hole of the clamp base body in a clearance fit mode, and the large-diameter end of the mandrel step is used for positioning an inner hole of a frame to be processed; support column positioning holes are uniformly machined in the outer side of the upper surface mandrel positioning hole of the clamp base body, and the lower ends of the support columns are inserted into the support column positioning holes in a clearance fit mode and used for providing a plane reference for a frame to be machined; the pressing plate is sleeved from the top end of the stud, a fastening nut is screwed into the upper end of the pressing plate, and the pressing plate is used for matching with the support column to provide an end face reference for the frame to be processed and axially compressing and limiting the frame to be processed; the upper surface of the clamp base body is provided with a positioning pin hole, the lower end of the positioning pin is inserted into the positioning pin hole in a clearance fit mode, and the upper end of the positioning pin is inserted into the frame to be processed and used for positioning the rotating angle of the frame to be processed.
Further, the inner diameter of the mandrel positioning hole is larger than the threaded hole but the depth of the mandrel positioning hole is smaller than the threaded hole.
Furthermore, three support column positioning holes are uniformly distributed on the outer side of the upper surface mandrel positioning hole of the clamp base body.
Furthermore, two positioning pin holes which are positioned at different angles are machined in the upper surface of the clamp base body.
(III) advantageous effects
The invention provides a milling clamp for improving the clamping, positioning and aligning efficiency of a frame. This anchor clamps adopts two holes one side location mode to the support post high accuracy plane of installing at the base member plane is as the plane benchmark of frame, regards detachable dabber step platform as the hole location benchmark of frame, regards the locating pin as the turned angle location benchmark of frame, uses the clamp plate to compress tightly the back with the frame, locks the clamp plate with fastening nut, realizes the high accuracy location to the frame. The fixture is simple in structure, convenient to manufacture and disassemble, capable of quickly completing positioning and alignment of various frame clamping, capable of realizing quick production change of frames with various sizes, and low in cost.
Drawings
FIG. 1 is a front view of a milling fixture according to an embodiment of the present invention;
FIG. 2 is a front cross-sectional view of a milling fixture in accordance with an embodiment of the present invention;
FIG. 3 is a top view of a fixture base in an embodiment of the invention.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
The embodiment provides a milling fixture for improving the clamping, positioning and aligning efficiency of a frame, which has a structure shown in fig. 1 and 2 and comprises a fixture base body 1, a support column 2, a detachable mandrel step 3, a pressing plate 4, a fastening nut 5, a stud 6 and a detachable positioning pin 7.
The center of the upper surface of the clamp base body 1 is provided with a threaded hole and a mandrel positioning hole which are coaxial, and the inner diameter of the mandrel positioning hole is larger than that of the threaded hole but the depth of the mandrel positioning hole is smaller than that of the threaded hole.
The stud 6 is screwed into the threaded hole through the bottom end thread and then is tightly connected with the base body 1. The mandrel step 3 is sleeved into the stud 6 through a central hole, and the small-diameter end of the mandrel step 3 is inserted into the mandrel positioning hole of the clamp base body 1 in a clearance fit mode. The large diameter end of the mandrel step 3 is used to locate the inner bore of the frame 8 to be machined.
Three support column positioning holes are uniformly distributed on the outer side of the upper surface mandrel positioning hole of the fixture base body 1, and the lower ends of the three support columns 2 are inserted into the support column positioning holes in a clearance fit mode and used for providing a plane reference for a frame 8 to be processed.
The pressing plate 4 is sleeved by the top end of the stud 6, and a fastening nut 5 is screwed into the upper end of the pressing plate 4. The pressing plate 4 is used for matching with the supporting column 2 on the clamp base body 1 to serve as an end face reference, and the frame 8 to be processed is axially pressed and limited.
According to the size of a frame 8 to be processed, two positioning pin holes are further processed on the upper surface of the clamp base body 1, the lower ends of the positioning pins 7 are inserted into the positioning pin holes in proper positions in a clearance fit mode, and the upper ends of the positioning pins are inserted into the frame 8 and used for positioning the rotation angle of the frame 8.
The clamp adopts a two-hole one-surface positioning mode, the high-precision plane of three support columns 2 arranged on the plane of a base body 1 is used as the plane reference of a frame 8, a detachable mandrel step 3 is used as the inner hole positioning reference of the frame 8, a positioning pin 7 is used as the rotation angle positioning reference of the frame 8, the frame 8 is tightly pressed by a pressing plate 4, and the pressing plate 4 is locked by a fastening nut 5, so that the high-precision positioning of the frame 8 is realized.
The fixture can quickly and accurately determine the center and the position of a part, so that the origin of coordinates can be conveniently established, the positioning and alignment of various frame clamping can be quickly completed, the adjusting preparation time in the clamping process is greatly reduced, the labor intensity is greatly reduced, the rapid production change of frames with various sizes is realized, and the production efficiency is improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (4)
1. A milling clamp for improving the clamping, positioning and aligning efficiency of a frame is characterized by comprising a clamp base body, a support column, a mandrel step, a pressing plate, a fastening nut, a stud and a positioning pin; the center of the upper surface of the clamp base body is provided with a threaded hole and a mandrel positioning hole which are coaxial, and the stud is screwed into the threaded hole through the bottom end thread and then is fixedly connected with the base body; the mandrel step is sleeved in the stud through the central hole, the small-diameter end of the mandrel step is inserted into the mandrel positioning hole of the clamp base body in a clearance fit mode, and the large-diameter end of the mandrel step is used for positioning an inner hole of a frame to be processed; support column positioning holes are uniformly machined in the outer side of the upper surface mandrel positioning hole of the clamp base body, and the lower ends of the support columns are inserted into the support column positioning holes in a clearance fit mode and used for providing a plane reference for a frame to be machined; the pressing plate is sleeved from the top end of the stud, a fastening nut is screwed into the upper end of the pressing plate, and the pressing plate is used for matching with the support column to provide an end face reference for the frame to be processed and axially compressing and limiting the frame to be processed; the upper surface of the clamp base body is provided with a positioning pin hole, the lower end of the positioning pin is inserted into the positioning pin hole in a clearance fit mode, and the upper end of the positioning pin is inserted into the frame to be processed and used for positioning the rotating angle of the frame to be processed.
2. The milling fixture of claim 1, wherein the mandrel locating bore has an inner diameter greater than the threaded bore but a depth less than the threaded bore.
3. The milling fixture of claim 1, wherein three support post locating holes are evenly distributed outside the upper surface spindle locating hole of the fixture base body.
4. The milling fixture of claim 1, wherein the upper surface of the fixture base is machined with two dowel pin holes at different angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111358329.1A CN114054826A (en) | 2021-11-16 | 2021-11-16 | A milling fixture for improving the efficiency of frame clamping, positioning and alignment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111358329.1A CN114054826A (en) | 2021-11-16 | 2021-11-16 | A milling fixture for improving the efficiency of frame clamping, positioning and alignment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114054826A true CN114054826A (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111358329.1A Pending CN114054826A (en) | 2021-11-16 | 2021-11-16 | A milling fixture for improving the efficiency of frame clamping, positioning and alignment |
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| CN (1) | CN114054826A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115229250A (en) * | 2022-08-22 | 2022-10-25 | 九江精密测试技术研究所 | A fine milling device for mass production of small frames |
| CN117206944A (en) * | 2023-10-10 | 2023-12-12 | 中国船舶集团有限公司第十二研究所 | Processing device for hole grooves at both ends of thrust washer |
| CN117226596A (en) * | 2023-09-08 | 2023-12-15 | 中国航发贵州黎阳航空动力有限公司 | Turbine support part machining clamp and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08118122A (en) * | 1994-10-20 | 1996-05-14 | Fuji Electric Co Ltd | Jig for drilling holes in round materials |
| CN107138979A (en) * | 2017-05-04 | 2017-09-08 | 广西金锋汽车零部件制造有限公司 | It is a kind of while the tooling device used for locating of two flywheel signal teeths of milling |
| CN206689753U (en) * | 2017-03-14 | 2017-12-01 | 河南平原光电有限公司 | A kind of milling clamper for being used to reduce thin-wall frame frame clamping deformation |
| CN208592604U (en) * | 2018-07-19 | 2019-03-12 | 广西四方汽车零部件制造有限公司 | A kind of adjustable machining tool fixture |
| CN210588176U (en) * | 2019-08-21 | 2020-05-22 | 扬中市三利石化机械有限公司 | Tooth sealing finish turning outer diameter clamp of centrifugal machine |
| CN216325429U (en) * | 2021-11-16 | 2022-04-19 | 北京北方车辆集团有限公司 | Milling fixture for improving frame clamping, positioning and aligning efficiency |
-
2021
- 2021-11-16 CN CN202111358329.1A patent/CN114054826A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08118122A (en) * | 1994-10-20 | 1996-05-14 | Fuji Electric Co Ltd | Jig for drilling holes in round materials |
| CN206689753U (en) * | 2017-03-14 | 2017-12-01 | 河南平原光电有限公司 | A kind of milling clamper for being used to reduce thin-wall frame frame clamping deformation |
| CN107138979A (en) * | 2017-05-04 | 2017-09-08 | 广西金锋汽车零部件制造有限公司 | It is a kind of while the tooling device used for locating of two flywheel signal teeths of milling |
| CN208592604U (en) * | 2018-07-19 | 2019-03-12 | 广西四方汽车零部件制造有限公司 | A kind of adjustable machining tool fixture |
| CN210588176U (en) * | 2019-08-21 | 2020-05-22 | 扬中市三利石化机械有限公司 | Tooth sealing finish turning outer diameter clamp of centrifugal machine |
| CN216325429U (en) * | 2021-11-16 | 2022-04-19 | 北京北方车辆集团有限公司 | Milling fixture for improving frame clamping, positioning and aligning efficiency |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115229250A (en) * | 2022-08-22 | 2022-10-25 | 九江精密测试技术研究所 | A fine milling device for mass production of small frames |
| CN117226596A (en) * | 2023-09-08 | 2023-12-15 | 中国航发贵州黎阳航空动力有限公司 | Turbine support part machining clamp and method |
| CN117206944A (en) * | 2023-10-10 | 2023-12-12 | 中国船舶集团有限公司第十二研究所 | Processing device for hole grooves at both ends of thrust washer |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220218 |
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| RJ01 | Rejection of invention patent application after publication |