CN110103043B - Processing technology of long bent arm without scratches - Google Patents
Processing technology of long bent arm without scratches Download PDFInfo
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- CN110103043B CN110103043B CN201910258515.4A CN201910258515A CN110103043B CN 110103043 B CN110103043 B CN 110103043B CN 201910258515 A CN201910258515 A CN 201910258515A CN 110103043 B CN110103043 B CN 110103043B
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- tool
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- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to a processing technology of a non-scratch bent long arm, belonging to the field of cold processing. The countersunk hole on the tool supporting block is utilized to match the machined threaded hole and the hexagon socket head cap screw on the part, the position which cannot be clamped in the middle of the long arm is locked, the surface quality of part machining is ensured, meanwhile, the continuous machining of short cutters can be realized, and the machining efficiency of the part is effectively improved. The part is protected and turned over for clamping, the part is quickly positioned and clamped by the tool, one-time alignment is realized, and the part can be repeatedly positioned and clamped. The process solves the problems of clamping, positioning and aligning of the long bent arm without scratches, greatly shortens the clamping and aligning time, improves the processing efficiency and ensures the stability of the quality of parts.
Description
Technical Field
The invention belongs to the field of cold machining industry, and particularly relates to a clamping and positioning process of a bent long-arm part requiring no scratch. The machining method is suitable for machining all the rest stations of the parts by front finish machining and turn-over finish machining, and ensures the surface quality of the parts, the tolerance of all the shapes and positions of the parts within 0.05mm and all the dimensional requirements.
Background
In the field of semiconductor processing, a plurality of long bent arm parts which are required to be free of scratches are large in size, surface quality requirements are strict (the surfaces are required to be not allowed to be polished, and have no scratches, scratches and indentations), flatness, parallelism and hole position requirements are strict (all less than 0.05mm), after the front face of the part is finished, the part is difficult to clamp when the front face of the part is turned over and finished, the part is easy to crush and damage by clamping of a reverse pressing plate, and the quality of the part is difficult to ensure.
Disclosure of Invention
Aiming at the existing problems, the invention aims to provide a clamping and positioning process for processing the curved long-arm part without the scratch, which is suitable for processing the curved long-arm part without the scratch on the surface, and has the advantages of simple and stable operation process and strong practicability.
The purpose of the invention is realized by the following technical scheme:
the machining process of the long bent arm without scratches utilizes the weight reduction groove supporting block arranged on the tool to effectively support the vacancy of the part, so that no vibration cutter is generated when the datum plane of the part is machined, and the machining quality of the part is ensured.
The countersunk hole on the tool supporting block is utilized to match the machined threaded hole and the hexagon socket head cap screw on the part, the position which cannot be clamped in the middle of the long arm is locked, the surface quality of part machining is ensured, meanwhile, the continuous machining of short cutters can be realized, and the machining efficiency of the part is effectively improved.
Utilize two locating holes that are equipped with on the frock, the smart hole of processing on the cooperation part realizes the quick location of part and frock, when improving the production efficiency of part, guarantees the stability of part quality.
The tool base is provided with small threaded holes corresponding to the positions of the small holes at the two ends of the part, and the part is locked on the tool by utilizing the small screws to penetrate through the holes in the part, so that no vibration cutter is arranged when the two ends of the part are machined, and the stability of the quality of the part is ensured.
The tool is formed by processing aluminum alloy, and plastic protective films are attached to the positions, in contact with the parts, of the tool, so that the side faces of the workpieces are protected, and the workpieces are not easy to clamp.
The invention has the beneficial effects that:
1. according to the shape of a scratch-free bent long-arm part weight reduction groove, the supporting block is reasonably designed, the suspension position of the part is effectively supported, no vibration cutter is generated when the reference surface of the part is machined, and the machining quality of the part is guaranteed.
2. According to the tool in the process, the counter bores are designed on the supporting blocks, the positions, which cannot be clamped, of the parts are effectively locked by matching the positions, which correspond to the positions of the machined threads on the parts, of the parts through the hexagon socket head cap screws, and the problem that the parts are not easy to clamp is solved.
3. According to the tooling in the process, the positioning pin hole is designed at the position, corresponding to the part fine hole, on the tooling base, so that the part and the tooling are quickly positioned, the clamping time is shortened, and the production efficiency of the part is improved.
4. According to the tooling in the process, the threaded holes are designed in the positions, corresponding to the through holes of the parts, of the tooling base, and the two ends of the parts are locked by matching bolts, so that the stability of the quality of the parts is realized.
5. The used processing tool is simple in structure, convenient to operate and low in technical requirement on the whole locking work, and the requirement on operators is effectively reduced.
6. The surfaces of the tools, which are in contact with the parts, are completely pasted with the scratch-proof adhesive tapes, so that the surface quality of the parts is effectively ensured, and the workpieces are not easy to be clamped.
Drawings
Fig. 1 is a rear view of the part.
Fig. 2 is a front view of the part.
Fig. 3 is a rear view of the tool.
Fig. 4 is a front view of the tool.
Fig. 5 is a schematic view of a combination of parts and tooling.
Detailed Description
The invention will now be described in detail with reference to the accompanying figures 1-5 and examples.
The machining process of the long bent arm without scratches utilizes the weight reduction groove supporting block arranged on the tool to effectively support the vacancy of the part, so that no vibration cutter is generated when the datum plane of the part is machined, and the machining quality of the part is ensured.
The countersunk hole on the tool supporting block is utilized to match the machined threaded hole and the hexagon socket head cap screw on the part, the position which cannot be clamped in the middle of the long arm is locked, the surface quality of part machining is ensured, meanwhile, the continuous machining of short cutters can be realized, and the machining efficiency of the part is effectively improved.
Utilize two locating holes that are equipped with on the frock, the smart hole of processing on the cooperation part realizes the quick location of part and frock, when improving the production efficiency of part, guarantees the stability of part quality.
The tool base is provided with small threaded holes corresponding to the positions of the small holes at the two ends of the part, and the part is locked on the tool by utilizing the small screws to penetrate through the holes in the part, so that no vibration cutter is arranged when the two ends of the part are machined, and the stability of the quality of the part is ensured.
The tool is formed by processing aluminum alloy, and plastic protective films are attached to the positions, in contact with the parts, of the tool, so that the side faces of the workpieces are protected, and the workpieces are not easy to clamp.
Examples
As shown in figure 1, in the process of the scratch-free bent long-arm part, a reference surface A (the planeness is 0.05mm), large countersunk precision holes at two ends (the verticality is 0.05mm and is vertical to the reference surface A), the appearance of the part and all the dimensions of the surface are required to be processed.
As shown in fig. 2, the tool for bending the long arm part without scratches; the tool comprises a tool base 1, a pressing plate 2, a tool block locking bolt 3, a part positioning pin 4, a tool block positioning pin 5, a supporting block 6, a front bolt 7 and a tool positioning pin 9; the tool base 1 is fixed on a base plate of a machine tool through a pressing plate 2; a supporting block 6 is fixed on the tool base 1 through a tool block positioning pin 5 and a tool block locking bolt 3; two ends of the tool base 1 are provided with a part positioning pin 4 and a threaded hole; the end face of the groove of the part is buckled on the supporting block 6, the two ends of the part are positioned through the part positioning pin 4, and then the part is fixed on the tool base 1 through the positive bolt 7. The back of the tool base 1 is provided with a part connected with the reverse bolt 8.
As shown in fig. 3, after a supporting block on the tool is fixed in position by a supporting block positioning pin, the tool is locked by a tool block locking bolt, a part and a part positioning pin for the tool are used for fixing the position of the part on the tool, the part is locked by using a processed M5 thread, the part is supported by a suspended weight reduction groove, the positioning pin is pulled out after the part is locked, the tool is fixed on a substrate of a machine tool by using the tool positioning pin, a pressing plate is pressed in a drawing position (in pressing plate grooves at two ends of a tool base), the b surface of the tool base is corrected, and the part jumps within 0.03 mm.
Claims (2)
1. A scratch-free processing technology for a bent long arm is characterized in that a part vacancy is effectively supported by a weight reduction groove supporting block arranged on a tool, no tool chatters when a part reference surface is processed, and the processing quality of the part is guaranteed;
the two positioning holes arranged on the tool are matched with the fine holes machined on the part, so that the part and the tool are quickly positioned, the production efficiency of the part is improved, and the stability of the quality of the part is ensured;
small threaded holes corresponding to the positions of the small holes at the two ends of the part are formed in the tool base, and the part is locked on the tool by utilizing the small screws to penetrate through the holes in the part, so that no vibration cutter is arranged when the two ends of the part are machined, and the stability of the quality of the part is ensured;
the tool is processed by aluminum alloy, and the positions of the tool, which are contacted with the parts, are completely pasted with plastic protective films, so that the side surfaces of the workpieces are protected, and the workpieces are not easy to be clamped;
the tool comprises a tool base, a pressing plate, a tool block locking bolt, a part positioning pin, a tool block positioning pin, a supporting block, a front bolt and a tool positioning pin;
the tool base is fixed on a base plate of the machine tool through a pressing plate;
a supporting block is fixed on the tool base through a tool block positioning pin and a tool block locking bolt;
two ends of the tool base are provided with a part positioning pin and a threaded hole;
buckling the end face of the groove of the part on the supporting block, positioning the two ends of the part through part positioning pins, and fixing the part on the tool base by using a positive bolt;
the back of the tool base is provided with an inverse bolt connected with the part.
2. The process for machining the non-scratch bent long arm according to claim 1, wherein a position, which cannot be clamped, in the middle of the long arm is locked by using the counter bore on the tool supporting block and matching with a threaded hole and a hexagon socket head cap screw already machined on a part, so that the surface quality of the machined part is ensured, meanwhile, the short-tool continuous machining can be realized, and the machining efficiency of the part is effectively improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910258515.4A CN110103043B (en) | 2019-04-01 | 2019-04-01 | Processing technology of long bent arm without scratches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910258515.4A CN110103043B (en) | 2019-04-01 | 2019-04-01 | Processing technology of long bent arm without scratches |
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| Publication Number | Publication Date |
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| CN110103043A CN110103043A (en) | 2019-08-09 |
| CN110103043B true CN110103043B (en) | 2021-04-16 |
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| CN201910258515.4A Active CN110103043B (en) | 2019-04-01 | 2019-04-01 | Processing technology of long bent arm without scratches |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112108905A (en) * | 2020-08-26 | 2020-12-22 | 沈阳富创精密设备有限公司 | Clamping and positioning process for arc-shaped step mirror image part |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103100889A (en) * | 2013-03-04 | 2013-05-15 | 西北工业大学 | Multi-point flexible positioning tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20130051540A (en) * | 2011-11-10 | 2013-05-21 | 현대중공업 주식회사 | Setting device for crank throw milling processing |
| CN202780636U (en) * | 2012-09-14 | 2013-03-13 | 沈阳鼓风机集团安装检修配件有限公司 | Machining fixture for inner hole of pad |
| CN203304949U (en) * | 2013-06-19 | 2013-11-27 | 贵州詹阳动力重工有限公司 | Milling tool for engineering van longitudinal beam |
| CN204036079U (en) * | 2014-09-09 | 2014-12-24 | 黄河科技学院 | Aircraft wing titanium alloy thin wall web HECNCM special fixture |
| CN205950319U (en) * | 2016-07-16 | 2017-02-15 | 广东正点光电有限公司 | A positioning jig for LED production |
| CN207309468U (en) * | 2017-10-18 | 2018-05-04 | 湖北三江航天险峰电子信息有限公司 | A kind of milling tool of thin-walled parts |
| CN208214839U (en) * | 2018-03-14 | 2018-12-11 | 泉州市惠安闽投商贸有限公司 | A kind of CNC milling machine special fixture |
| CN208543234U (en) * | 2018-07-18 | 2019-02-26 | 天津瑞霖重科机械有限公司 | A kind of water guide outer shaft sleeve drilling tool |
| CN109176088A (en) * | 2018-10-16 | 2019-01-11 | 植才华 | Shell thin wall component frock clamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103100889A (en) * | 2013-03-04 | 2013-05-15 | 西北工业大学 | Multi-point flexible positioning tool |
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Address after: No.18a-1, Feiyun Road, Hunnan District, Shenyang City, Liaoning Province Applicant after: Shenyang fuchuang precision equipment Co.,Ltd. Address before: No.18a-1, Feiyun Road, Dongling District, Shenyang, Liaoning Province, 110000 Applicant before: Shenyang Fortune Precision Equipment Co.,Ltd. |
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