CN110640500B - High-precision machine tool fixture - Google Patents
High-precision machine tool fixture Download PDFInfo
- Publication number
- CN110640500B CN110640500B CN201911015239.5A CN201911015239A CN110640500B CN 110640500 B CN110640500 B CN 110640500B CN 201911015239 A CN201911015239 A CN 201911015239A CN 110640500 B CN110640500 B CN 110640500B
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- China
- Prior art keywords
- chuck
- sliding
- base
- machine tool
- sliding table
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Abstract
The invention discloses a high-precision machine tool fixture which comprises a base, wherein the base comprises a front part and a rear part, and a sliding table cavity seat and a chuck cavity seat are formed in the front part and the rear part after the front part and the rear part are fixedly assembled through bolt and nut pieces; the sliding table cavity seat is communicated with the chuck cavity seat, and the top of the sliding table cavity seat is hollow; the middle part of the base forms a positioning head through die assembly; a sliding table with a pair of sliding blocks is fixed on the inner side of the sliding table cavity seat; a handle of the sliding table protrudes out of the outer end part of the base; two slide blocks of the sliding table are provided with double dovetail slide ways; the high-precision machine tool clamp is flexible and convenient in assembly and adjustment mode, and can complete the adjustment of the eccentricity of the clamp and the adjustment of the inner diameter of the clamp; longitudinal limiting, transverse limiting and side limiting are completed through the sliding head, the transverse limiting screw and the outer pressing bolt; thereby greatly reducing the vibration channeling.
Description
Technical Field
The invention relates to a clamp, in particular to a high-precision machine tool clamp, and belongs to the technical field of clamps.
Background
A machine tool fixture is a tool often used in mechanical production; the purpose is to fix the workpiece and facilitate subsequent turning and washing-cutting; the traditional machine tool clamp is generally made of tool steel, and although the machine tool clamp has high wear resistance and high strength, the performance of the machine tool clamp in the aspect of earthquake resistance is poor; in low-precision machining, the clamp has little influence on the machining precision of a product; however, in high-precision machining, vibration of the fixture obviously causes reduction of machining precision of the product. Therefore, how to manufacture the clamp capable of effectively reducing the vibration is the key for improving the processing precision of the product; for this reason, chinese patent application No.: 201710628451.3, discloses a high-precision machine tool clamp, which comprises a wear-resistant chuck, a foam shock absorption core and an artificial granite covering layer, wherein the wear-resistant chuck comprises a front pressing plate and a positioning rod arranged at the rear end of the front pressing plate, the foam shock absorption core is provided with a positioning hole, the positioning rod is inserted into the positioning hole, the artificial granite covering layer, the wear-resistant chuck and the foam shock absorption core are cast into a whole, and the artificial granite covering layer covers the foam shock absorption core and is fixedly connected with the front pressing plate; the high-precision machine tool fixture is formed by combining and processing composite materials, the whole product is simple in structure and low in production cost, and the whole fixture is high in shock resistance and good in wear resistance, so that the defects that the traditional machine tool fixture is easy to shake and flee and the processing precision cannot be improved are overcome; however, the wear-resistant chuck is only improved, the installation mode is not changed, gaps can not be limited after the wear-resistant chuck is installed, and the problem of vibration in the machining process still exists.
Disclosure of Invention
In order to solve the problems, the invention provides a high-precision machine tool clamp, and after the clamp is assembled, transverse limiting and longitudinal limiting can still be formed, so that vibration channeling can be well reduced.
According to the high-precision machine tool fixture, a flexible adjustment mode is adopted, the positioning head assembled in the middle of the base is matched with the positioning plate to adjust the overall centrality of the chuck, the central line can be adjusted to one eccentric side according to the machining requirement, and the overall vibration of the fixture can be relieved through the die steel plate body and the damping cladding; during adjustment, the large stroke of the chuck can be completed through the sliding table, the small-range accurate positioning is completed through the sliding of the chuck in the double-dovetail slideway, and the longitudinal limiting and the transverse limiting are completed through the sliding head and the transverse limiting screw rod; and the lateral limiting of the chuck is completed by externally pressing the bolt; thereby well reducing the vibration channeling; the concrete structure is as follows: the clamp comprises a base, wherein the base comprises a front part and a rear part, and a sliding table cavity seat and a chuck cavity seat are formed in the front part and the rear part after the front part and the rear part are fixedly assembled through bolt and nut pieces; the sliding table cavity seat is communicated with the chuck cavity seat, and the top of the sliding table cavity seat is hollow; the middle part of the base forms a positioning head through die assembly; a sliding table with a pair of sliding blocks is fixed on the inner side of the sliding table cavity seat; a handle of the sliding table protrudes out of the outer end part of the base; two slide blocks of the sliding table are provided with double dovetail slide ways; two clamping heads which are matched with each other are movably embedded in the double-dovetail slideway; the top of the outer side of the chuck is integrally provided with a 7-shaped sliding arm; the bottom of the slide arm is provided with a slide head; the top of the base is provided with a longitudinal limiting slideway; the sliding head is movably embedded into the longitudinal limiting slideway from the end part; the two ends of the front part and the rear part of the base are respectively screwed with a transverse limiting screw rod; the transverse limiting screw presses the chuck; end grooves are formed in the two surfaces, close to the chuck, of the positioning head; a convex positioning plate is movably embedded in the end groove; the positioning plate is movably embedded into the end groove; a plurality of through holes are formed right opposite to the positioning head, the chuck and the positioning plate; the positioning head, the chuck and the positioning plate are fastened in the through hole through a connecting bolt; and the front part and the rear part are screwed with outer pressing bolts of a pressing sliding block and a clamping head.
Furthermore, the positioning plate comprises a die steel plate body, and a plurality of grabbing nails are fixed on one surface of the die steel plate body, which is close to the end grooves; and a damping covering layer is poured on the grabbing nails.
Furthermore, sliding columns are fixed on the upper side and the lower side of the positioning plate; the sliding column is movably embedded into the sliding holes on the upper side and the lower side of the positioning head.
Preferably, the base is eccentrically assembled at the front and rear thereof.
Further, the bottom of the base is provided with a seat hole mounted with a machine tool.
Preferably, the following components: the chuck is a half V-shaped chuck or a half hook piece.
Further, the working process of the clamp is as follows:
firstly, assembling a clamp, namely fixing the sliding table and the base, then movably embedding a chuck into the double-dovetail slideway, movably embedding a sliding head of a sliding arm into the longitudinal limiting slideway, and finally fixing the front part and the rear part of the base through connecting bolts;
secondly, mounting the clamp with a machine tool, and fixing the base with the workbench through a connecting bolt;
finally, fine adjustment is carried out on the wire, two standard positioning plates with the same thickness or different thicknesses are selected according to the requirement of the core rod to be processed, the positioning plates are embedded into the end grooves, then the two sliding blocks are contracted through rotation of a hand crank, a connecting bolt penetrates through holes of the positioning head, the chuck and the positioning plates, the standard core rod is loaded on the two chucks, the clamp is adjusted on line, the chuck is locked through the connecting bolt, and finally the chuck is tightly pressed through a transverse limiting screw rod; thereby completing the compression of the two sides of the chuck.
Further, the workbench is a flat platform, a rotating platform or a turnover platform.
Compared with the prior art, the high-precision machine tool clamp has the advantages that the assembly and adjustment modes are flexible and convenient, and the eccentricity adjustment and the inner diameter adjustment of the clamp can be completed; longitudinal limiting, transverse limiting and side limiting are completed through the sliding head, the transverse limiting screw and the outer pressing bolt; thereby greatly reducing the vibration channeling.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the side structure of the base of the present invention.
Fig. 3 is a partially enlarged view of fig. 1A of the present invention.
Detailed Description
Example 1:
as shown in fig. 1 to 3, the high-precision machine tool fixture adopts a flexible adjustment mode, the positioning head assembled in the middle of the base is matched with the positioning plate to adjust the overall centrality of the chuck, the central line can be adjusted to one eccentric side according to the processing requirement, and the overall vibration of the fixture can be relieved through the die steel plate body and the damping cladding; during adjustment, the large stroke of the chuck can be completed through the sliding table, the small-range accurate positioning is completed through the sliding of the chuck in the double-dovetail slideway, and the longitudinal limiting and the transverse limiting are completed through the sliding head and the transverse limiting screw rod; and the lateral limiting of the chuck is completed by externally pressing the bolt; thereby well reducing the vibration channeling; the concrete structure is as follows: the clamp comprises a base 1, wherein the base 1 comprises a front part 1A and a rear part 1B, four ends of the front part 1A and the rear part 1B are fixedly assembled through a bolt and nut piece 2, and a sliding table cavity seat 3 and a chuck cavity seat 4 are formed inside the clamp; the sliding table cavity seat 3 is communicated with the chuck cavity seat 4, and the top of the sliding table cavity seat is hollow; the middle part of the base 1 forms a positioning head 5 through die assembly; a sliding table 31 with a pair of sliding blocks is fixed on the inner side of the sliding table cavity seat 3; the handle 32 of the sliding table 31 protrudes out of the outer end of the base 1; the two sliding blocks 33 of the sliding table 31 are both provided with double dovetail slide ways; two clamping heads 10 which are matched with each other are movably embedded in the double dovetail slide ways; the top of the outer side of the chuck 10 is integrally provided with a 7-shaped sliding arm 6; the bottom of the slide arm 6 is provided with a slide head 7; the top of the base 1 is provided with a longitudinal limiting slideway 8; the sliding head 7 is movably embedded into a longitudinal limiting slideway 8 from the end part; the two ends of the front part and the rear part of the base 1 are respectively screwed with a transverse limiting screw 9; the transverse limiting screw 9 compresses the chuck 10; end grooves are formed in the two surfaces, close to the chuck, of the positioning head 5; a convex positioning plate 11 is movably embedded in the end groove; the positioning plate 11 is movably embedded into the end groove; a plurality of through holes 12 are formed right opposite to the positioning head 5, the chuck 10 and the positioning plate 11; the positioning head 5, the chuck 10 and the positioning plate 11 are fastened in the through hole 12 through a connecting bolt; the front and rear portions are screwed with the pressing slider 33 and the outer pressing bolt 13 of the collet 10.
The positioning plate 11 comprises a die steel plate body 111, and a plurality of grabbing nails 112 are fixed on one surface of the die steel plate body 111 close to the end grooves; a shock absorption cladding 113 is poured on the grabbing nail 112; a sliding column 114 is fixed on the upper side and the lower side of the positioning plate 11; the sliding column 114 is movably embedded into the sliding holes on the upper side and the lower side of the positioning head 5; the front part and the rear part of the base 1 are eccentrically assembled; the bottom of the base 1 is provided with a seat hole 14 mounted with a machine tool; the chuck 10 is a half V-shaped chuck or a half hook.
The working process of the clamp is as follows:
firstly, assembling a clamp, namely fixing the sliding table and the base, then movably embedding a chuck into the double-dovetail slideway, movably embedding a sliding head of a sliding arm into the longitudinal limiting slideway, and finally fixing the front part and the rear part of the base through connecting bolts;
secondly, mounting the clamp with a machine tool, and fixing the base with the workbench through a connecting bolt;
finally, fine adjustment is carried out on the wire, two standard positioning plates with the same thickness or different thicknesses are selected according to the requirement of the core rod to be processed, the positioning plates are embedded into the end grooves, then the two sliding blocks are contracted through rotation of a hand crank, a connecting bolt penetrates through holes of the positioning head, the chuck and the positioning plates, the standard core rod is loaded on the two chucks, the clamp is adjusted on line, the chuck is locked through the connecting bolt, and finally the chuck is tightly pressed through a transverse limiting screw rod; thereby completing the compression of the two sides of the chuck.
Wherein the workbench is a flat platform, a rotating platform or a turnover platform.
The above-described embodiments are merely preferred embodiments of the present invention, and all equivalent changes or modifications of the structures, features and principles described in the claims of the present invention are included in the scope of the present invention.
Claims (8)
1. The utility model provides a high accuracy jig which characterized in that: the clamp comprises a base, wherein the base comprises a front part and a rear part, and a sliding table cavity seat and a chuck cavity seat are formed in the front part and the rear part after the front part and the rear part are fixedly assembled through bolt and nut pieces; the sliding table cavity seat is communicated with the chuck cavity seat, and the top of the sliding table cavity seat is hollow; the middle part of the base forms a positioning head through die assembly; a sliding table with a pair of sliding blocks is fixed on the inner side of the sliding table cavity seat; a handle of the sliding table protrudes out of the outer end part of the base; two slide blocks of the sliding table are provided with double dovetail slide ways; two clamping heads which are matched with each other are movably embedded in the double-dovetail slideway; the top of the outer side of the chuck is integrally provided with a 7-shaped sliding arm; the bottom of the slide arm is provided with a slide head; the top of the base is provided with a longitudinal limiting slideway; the sliding head is movably embedded into the longitudinal limiting slideway from the end part; the two ends of the front part and the rear part of the base are respectively screwed with a transverse limiting screw rod; the transverse limiting screw presses the chuck; end grooves are formed in the two surfaces, close to the chuck, of the positioning head; a convex positioning plate is movably embedded in the end groove; the positioning plate is movably embedded into the end groove; a plurality of through holes are formed right opposite to the positioning head, the chuck and the positioning plate; the positioning head, the chuck and the positioning plate are fastened in the through hole through a connecting bolt; and the front part and the rear part are screwed with outer pressing bolts of a pressing sliding block and a clamping head.
2. A high precision machine tool holder according to claim 1, wherein: the positioning plate comprises a die steel plate body, and a plurality of grabbing nails are fixed on one surface of the die steel plate body, which is close to the end grooves; and a damping covering layer is poured on the grabbing nails.
3. A high precision machine tool holder according to claim 1, wherein: sliding columns are fixed on the upper side and the lower side of the positioning plate; the sliding column is movably embedded into the sliding holes on the upper side and the lower side of the positioning head.
4. A high precision machine tool holder according to claim 1, wherein: the front part and the rear part of the base are eccentrically assembled.
5. A high precision machine tool holder according to claim 1, wherein: and a seat hole mounted with a machine tool is formed in the bottom of the base.
6. A high precision machine tool holder according to claim 1, wherein: the chuck is a half V-shaped chuck or a half hook piece.
7. A high precision machine tool holder according to claim 1, wherein: the working process of the clamp is as follows:
firstly, assembling a clamp, namely fixing the sliding table and the base, then movably embedding a chuck into the double-dovetail slideway, movably embedding a sliding head of a sliding arm into the longitudinal limiting slideway, and finally fixing the front part and the rear part of the base through connecting bolts;
secondly, mounting the clamp with a machine tool, and fixing the base with the workbench through a connecting bolt;
finally, fine adjustment is carried out on the wire, two standard positioning plates with the same thickness or different thicknesses are selected according to the requirement of the core rod to be processed, the positioning plates are embedded into the end grooves, then the two sliding blocks are contracted through rotation of a hand crank, a connecting bolt penetrates through holes of the positioning head, the chuck and the positioning plates, the standard core rod is loaded on the two chucks, the clamp is adjusted on line, the chuck is locked through the connecting bolt, and finally the chuck is tightly pressed through a transverse limiting screw rod; thereby completing the compression of the two sides of the chuck.
8. The high-precision machine tool fixture according to claim 7, wherein: the working table is a plane table, a rotating table or a turnover table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911015239.5A CN110640500B (en) | 2019-10-24 | 2019-10-24 | High-precision machine tool fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911015239.5A CN110640500B (en) | 2019-10-24 | 2019-10-24 | High-precision machine tool fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110640500A CN110640500A (en) | 2020-01-03 |
| CN110640500B true CN110640500B (en) | 2021-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911015239.5A Expired - Fee Related CN110640500B (en) | 2019-10-24 | 2019-10-24 | High-precision machine tool fixture |
Country Status (1)
| Country | Link |
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| CN (1) | CN110640500B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10315085A (en) * | 1997-05-13 | 1998-12-02 | Nippon Steel Corp | Aligning device for ring-shaped object |
| KR20020025161A (en) * | 2002-03-14 | 2002-04-03 | 김충관 | adhesion equipment filtration member for filter |
| CN2860747Y (en) * | 2005-12-16 | 2007-01-24 | 大连机床集团有限责任公司 | Centering clamping device |
| CN202964136U (en) * | 2012-12-29 | 2013-06-05 | 浙江恒通机械有限公司 | Machine tool automatic fixture |
| DE202017003295U1 (en) * | 2017-06-22 | 2017-09-19 | Gmt Global Inc. | Work machine chuck with image capture function |
| CN107336034A (en) * | 2017-07-28 | 2017-11-10 | 宁波法米莱美妆工具有限公司 | A kind of high precision machine tool fixture |
| CN207205910U (en) * | 2017-09-18 | 2018-04-10 | 泸州耀邦科技有限责任公司 | A kind of milling machine novel clamp |
-
2019
- 2019-10-24 CN CN201911015239.5A patent/CN110640500B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10315085A (en) * | 1997-05-13 | 1998-12-02 | Nippon Steel Corp | Aligning device for ring-shaped object |
| KR20020025161A (en) * | 2002-03-14 | 2002-04-03 | 김충관 | adhesion equipment filtration member for filter |
| CN2860747Y (en) * | 2005-12-16 | 2007-01-24 | 大连机床集团有限责任公司 | Centering clamping device |
| CN202964136U (en) * | 2012-12-29 | 2013-06-05 | 浙江恒通机械有限公司 | Machine tool automatic fixture |
| DE202017003295U1 (en) * | 2017-06-22 | 2017-09-19 | Gmt Global Inc. | Work machine chuck with image capture function |
| CN107336034A (en) * | 2017-07-28 | 2017-11-10 | 宁波法米莱美妆工具有限公司 | A kind of high precision machine tool fixture |
| CN207205910U (en) * | 2017-09-18 | 2018-04-10 | 泸州耀邦科技有限责任公司 | A kind of milling machine novel clamp |
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| Publication number | Publication date |
|---|---|
| CN110640500A (en) | 2020-01-03 |
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Granted publication date: 20210518 Termination date: 20211024 |