CN105710674A - Special clamp used for drilling of arc-shaped workpiece - Google Patents

Special clamp used for drilling of arc-shaped workpiece Download PDF

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Publication number
CN105710674A
CN105710674A CN201610218362.7A CN201610218362A CN105710674A CN 105710674 A CN105710674 A CN 105710674A CN 201610218362 A CN201610218362 A CN 201610218362A CN 105710674 A CN105710674 A CN 105710674A
Authority
CN
China
Prior art keywords
hole
arc
shaped workpiece
bracer
special fixture
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
Application number
CN201610218362.7A
Other languages
Chinese (zh)
Inventor
李利华
张广华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Jiancheng Group Co Ltd
Original Assignee
Harbin Jiancheng Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Harbin Jiancheng Group Co Ltd filed Critical Harbin Jiancheng Group Co Ltd
Priority to CN201610218362.7A priority Critical patent/CN105710674A/en
Publication of CN105710674A publication Critical patent/CN105710674A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices 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
    • B23Q3/06Work-clamping means
    • B23Q3/062Work-clamping means adapted for holding workpieces having a special form or being made from a special material

Abstract

The invention provides a special clamp used for drilling of an arc-shaped workpiece, and relates to the drilling clamp. The problems that when an existing milling cutter and an existing drill bit are used in cooperation for machining a radial hole of the arc-shaped workpiece, time and labor are wasted and the position precision of the hole is difficult to ensure are solved. The special clamp comprises a clamp body, a stop screw, a drill bushing, a plugging block and two pressing screws. The clamp body comprises a bottom plate and a support. The lower end face of a positioning block is a cambered surface. A first through hole and two internal threaded holes are vertically formed in the positioning block. The two internal threaded holes are located on the two sides of the first through hole. The upper end face of a supporting block is a cambered surface. A second through hole is formed in the supporting block from top to bottom. The first through hole is right opposite to the second through hole. Each pressing screw is connected with the corresponding internal threaded hole in a threaded manner. The drill bushing is located in the first through hole. The plugging block is located between the positioning block and the supporting block. The special clamp used for drilling of the arc-shaped workpiece is used for drilling of the arc-shaped workpiece.

Description

Special fixture for arc-shaped workpiece boring
Technical field
The present invention relates to a kind of boring grab.
Background technology
A kind of workpiece of the arcuate structure with radial hole, when processing its radial hole, the arcuate structure of workpiece itself is not easy on drilling machine clamping centering, workpiece cambered surface makes bit point of the drill and contact surface be point cantact, bit force vibrates, it is impossible to accurately feels relieved, causes hole dimension bigger than normal or elongated hole.Conventional boring method is first to mill out plane with milling cutter on milling machine, then gets out rational location hole with drill bit, cumbersome and time consuming, and borehole accuracy it is difficult to ensure that, do not reach technological requirement.Need design specialized fixture drilling radial hole, it is ensured that the positional precision of the radial hole of workpiece and concordance, improve production efficiency, meet the requirement of batch production.Patent fixture requires simple, convenient.
Summary of the invention
The present invention solves that existing milling cutter coordinates wasting time and energy of existing during the radial hole of processing arc-shaped workpiece and problem that the positional precision in hole is difficult to ensure that with drill bit, and then provide a kind of special fixture for arc-shaped workpiece boring.
The present invention solves that above-mentioned technical problem be the technical scheme is that the special fixture for arc-shaped workpiece boring, including jig main body, gear screw, drill bushing, sprue and two housing screws, described jig main body includes base plate and support, the lower end of support is affixed with the upper surface of base plate, the top of support is connected with locating piece, the lower surface of described locating piece is cambered surface, locating piece is vertically arranged with the first through hole and two internal thread holes, two internal thread holes lay respectively at the both sides of the first through hole, the bottom of support is connected with a bracer, the upper surface propping up bracer is cambered surface, the cambered surface diameter propping up bracer upper surface is identical with the intrados diameter of arc-shaped workpiece, prop up bracer and from top to bottom offer the second through hole, first through hole and the second through hole are just to setting, two housing screws are threadeded with two internal thread holes respectively, drill bushing is positioned at the first through hole, sprue is between locating piece and a bracer, sprue offers elongated hole, sprue and support are affixed by gear screw.
The invention has the beneficial effects as follows:
The arc sizes propping up bracer upper surface is equivalently-sized with the intrados of arc-shaped workpiece, workpiece is played the role of positioning, utilize housing screw and sprue that arc-shaped workpiece is positioned clamping, drilling tool is played location and the effect of guiding by drill bushing, it is ensured that the positional precision of boring, and a whole set of clamp structure is simple, clamping is fast, process-cycle is short, and efficiency is high, meets the requirement of batch production.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3 is the front view of jig main body in detailed description of the invention one;
Fig. 4 is that the B-B of Fig. 3 is to sectional view;
Fig. 5 is the half sectional view of drill bushing in detailed description of the invention one;
Fig. 6 is the I place enlarged drawing of Fig. 5;
Fig. 7 is the front view of sprue in detailed description of the invention one;
Fig. 8 is that the C-C of Fig. 7 is to sectional view;
Fig. 9 is the structure chart of gear screw in detailed description of the invention one;
Figure 10 is the front view of arc-shaped workpiece in detailed description of the invention one;
Figure 11 is that the D-D of Figure 10 that 2:1 ratio is drawn is to sectional view.
Detailed description of the invention
Detailed description of the invention one: as shown in Fig. 1~11, the special fixture for arc-shaped workpiece boring described in present embodiment, including jig main body 1, gear screw 2, drill bushing 3, sprue 4 and two housing screws 5, described jig main body 1 includes base plate 10 and support 11, the lower end of support 11 is affixed with the upper surface of base plate 10, the top of support 11 is connected with locating piece 12, the lower surface of described locating piece 12 is cambered surface, locating piece 12 is vertically arranged with the first through hole 12-1 and two internal thread hole 12-2, two internal thread hole 12-2 lay respectively at the both sides of the first through hole 12-1, the bottom of support 11 is connected with a bracer 13, the upper surface propping up bracer 13 is cambered surface, the cambered surface diameter propping up bracer 13 upper surface is identical with the intrados diameter of arc-shaped workpiece 100, prop up bracer 13 and from top to bottom offer the second through hole 13-1, first through hole 12-1 and the second through hole 13-1 is just to setting, support 11 has third through-hole 11-1 along the processing of its width, third through-hole 11-1 is between locating piece 12 and a bracer 13, two housing screws 5 are threadeded with two internal thread hole 12-2 respectively, drill bushing 3 is positioned at the first through hole 12-1, sprue 4 is between locating piece 12 and a bracer 13, sprue 4 offers elongated hole 4-1, sprue 4 and support 11 are affixed by gear screw 2.
The axis of the radial direction through hole 100-1 in arc-shaped workpiece 100 after processing in jig main body 1 with the dead in line of the first through hole 12-1.
Described base plate 10 is rectangular structure.
The special fixture overall dimensions for arc-shaped workpiece 100 boring described in present embodiment is little, can be directly mounted on common desktop drilling machine.
Sprue 4 is positioned at one end of arc-shaped workpiece 100, and its position in jig main body 1 is determined according to the length of arc-shaped workpiece 100.
Detailed description of the invention two: present embodiment is described in conjunction with Fig. 1 and Fig. 3, the special fixture for arc-shaped workpiece boring described in present embodiment, the extrados diameter of arc-shaped workpiece 100 is less than the cambered surface diameter of locating piece 12 lower surface.It is so designed that, facilitates arc-shaped workpiece 100 to take out in clamp body.Other composition and annexation are identical with detailed description of the invention one.
Detailed description of the invention three: present embodiment is described in conjunction with Fig. 1~4, the special fixture for arc-shaped workpiece boring described in present embodiment, the lower surface of base plate 10 processes fluted 10-1.It is so designed that, the weight of fixture itself can be alleviated and be easy to fixture fixing on drilling machine table top.Other composition and annexation are identical with detailed description of the invention one or two.
Detailed description of the invention four: present embodiment is described in conjunction with Fig. 2, the special fixture for arc-shaped workpiece boring described in present embodiment, drill bushing 3 and the first through hole 12-1 interference fit.It is so designed that, is further ensured that the positional precision of boring.Other composition and annexation are identical with detailed description of the invention one or two.
Detailed description of the invention five: present embodiment is described in conjunction with Fig. 2, Fig. 4 and Figure 11, the special fixture for arc-shaped workpiece boring described in present embodiment, the width of the width of locating piece 12 and a bracer 13 is respectively less than the width of arc-shaped workpiece 100.It is so designed that, facilitates arc-shaped workpiece 100 to take out from jig main body 1.Other composition and annexation are identical with detailed description of the invention one or two.
Detailed description of the invention six: present embodiment is described in conjunction with Fig. 1 and Fig. 3, the special fixture for arc-shaped workpiece boring described in present embodiment, the diameter of the first through hole 12-1 diameter less than the second through hole 13-1.It is so designed that, facilitates chip removal, it is simple to the processing of clamp body, and good manufacturability.Other composition and annexation are identical with detailed description of the invention one.
Detailed description of the invention seven: present embodiment is described in conjunction with Fig. 1, Fig. 2 and Fig. 5, the special fixture for arc-shaped workpiece boring described in present embodiment, drill bushing 3 is tool steel drill bushing.It is so designed that, utilizes high-wearing feature and the high rigidity of tool steel, improve the service life of drill bushing 3, facilitate maintenance and the processing of jig main body 1.Other composition and annexation are identical with detailed description of the invention one.
Detailed description of the invention eight: present embodiment is described in conjunction with Fig. 1 and Fig. 3, the special fixture for arc-shaped workpiece boring described in present embodiment, described third through-hole 11-1 is elongated hole.It is so designed that, the sprue 4 displacement range between locating piece 12 and a bracer 13 can be made to increase, facilitate the location adjustment of arc-shaped workpiece 100.Other composition and annexation are identical with detailed description of the invention one.
Detailed description of the invention nine: present embodiment is described in conjunction with Fig. 1 and Fig. 3, the special fixture for arc-shaped workpiece boring described in present embodiment, described third through-hole 11-1 is internal thread hole.It is so designed that, gear screw 2 can be made directly to threaded with third through-hole 11-1, it is not necessary to additionally adapted nut realizes the fixing of sprue 4.Other composition and annexation are identical with detailed description of the invention one.
Work process:
When boring, arc-shaped workpiece 100 is put between the locating piece 12 of jig main body 1 and a bracer 13, compress arc-shaped workpiece 100 extrados by housing screw 5, it is ensured that vertical direction accurate positioning.Horizontal range is adjusted, it is ensured that horizontal direction accurate positioning by sprue 4.The axis of the first through hole 12-1, the axis of the second through hole 13-1 and the centrage of jig main body 1 overlap, it is ensured that arc-shaped workpiece 100 accurate positioning, are integrally attached on the workbench of drilling machine by fixture, and arc-shaped workpiece 100 is holed by drill bit by drill bushing 3.

Claims (9)

1. the special fixture for arc-shaped workpiece boring, it is characterized in that: include jig main body (1), gear screw (2), drill bushing (3), sprue (4) and two housing screws (5), described jig main body (1) includes base plate (10) and support (11), the lower end of support (11) is affixed with the upper surface of base plate (10), the top of support (11) is connected with locating piece (12), the lower surface of described locating piece (12) is cambered surface, locating piece (12) is vertically arranged with the first through hole (12-1) and two internal thread holes (12-2), two internal thread holes (12-2) lay respectively at the both sides of the first through hole (12-1), the bottom of support (11) is connected with a bracer (13), the upper surface propping up bracer (13) is cambered surface, the cambered surface diameter propping up bracer (13) upper surface is identical with the intrados diameter of arc-shaped workpiece (100), prop up bracer (13) and from top to bottom offer the second through hole (13-1), first through hole (12-1) and the second through hole (13-1) are just to setting, support (11) has third through-hole (11-1) along the processing of its width, third through-hole (11-1) is positioned between locating piece (12) and a bracer (13), two housing screws (5) threaded with two internal thread holes (12-2) respectively, drill bushing (3) is positioned at the first through hole (12-1), sprue (4) is positioned between locating piece (12) and a bracer (13), sprue (4) offers elongated hole (4-1), sprue (4) is affixed by gear screw (2) with support (11).
2. the special fixture for arc-shaped workpiece boring according to claim 1, it is characterised in that: the extrados diameter of arc-shaped workpiece (100) is less than the cambered surface diameter of locating piece (12) lower surface.
3. the special fixture for arc-shaped workpiece boring according to claim 1 and 2, it is characterised in that: the lower surface of base plate (10) processes fluted (10-1).
4. the special fixture for arc-shaped workpiece boring according to claim 1 and 2, it is characterised in that: drill bushing (3) and the first through hole (12-1) interference fit.
5. the special fixture for arc-shaped workpiece boring according to claim 1 and 2, it is characterised in that: the width of the width of locating piece (12) and a bracer (13) is respectively less than the width of arc-shaped workpiece (100).
6. the special fixture for arc-shaped workpiece boring according to claim 1, it is characterised in that: the diameter of the first through hole (12-1) diameter less than the second through hole (13-1).
7. the special fixture for arc-shaped workpiece boring according to claim 1, it is characterised in that: drill bushing (3) is tool steel drill bushing.
8. the special fixture for arc-shaped workpiece boring according to claim 1, it is characterised in that: described third through-hole (11-1) is elongated hole.
9. the special fixture for arc-shaped workpiece boring according to claim 1, it is characterised in that: described third through-hole (11-1) is internal thread hole.
CN201610218362.7A 2016-04-11 2016-04-11 Special clamp used for drilling of arc-shaped workpiece Pending CN105710674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610218362.7A CN105710674A (en) 2016-04-11 2016-04-11 Special clamp used for drilling of arc-shaped workpiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610218362.7A CN105710674A (en) 2016-04-11 2016-04-11 Special clamp used for drilling of arc-shaped workpiece

Publications (1)

Publication Number Publication Date
CN105710674A true CN105710674A (en) 2016-06-29

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Family Applications (1)

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CN201610218362.7A Pending CN105710674A (en) 2016-04-11 2016-04-11 Special clamp used for drilling of arc-shaped workpiece

Country Status (1)

Country Link
CN (1) CN105710674A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200080642A (en) * 2018-12-27 2020-07-07 이상섭 a jig of machine tool and an alignment apparatus for a jig of machine tool
CN112518903A (en) * 2020-11-27 2021-03-19 德清领千木业有限公司 Arc surface drilling clamp for circular wood products

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4072439A (en) * 1976-05-18 1978-02-07 Diggs Richard E Safety groove drill press and attachments
JP2001162471A (en) * 1999-12-06 2001-06-19 Suguro Tekko:Kk Work holding method for deburring periphery of molded product
CN202367240U (en) * 2011-12-21 2012-08-08 哈电集团(秦皇岛)重型装备有限公司 Cambered surface drilling device of tubular tensile test piece
CN202621997U (en) * 2012-05-22 2012-12-26 西安飞机工业(集团)有限责任公司 Clamp for drilling normal direction holes
CN103100901A (en) * 2012-11-15 2013-05-15 无锡市航鹄科技有限公司 Thin-wall cambered-surface positioning tool for inclined hole punching
CN205415037U (en) * 2016-04-11 2016-08-03 哈尔滨建成集团有限公司 A special fixture for drilling of arc work piece

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4072439A (en) * 1976-05-18 1978-02-07 Diggs Richard E Safety groove drill press and attachments
JP2001162471A (en) * 1999-12-06 2001-06-19 Suguro Tekko:Kk Work holding method for deburring periphery of molded product
CN202367240U (en) * 2011-12-21 2012-08-08 哈电集团(秦皇岛)重型装备有限公司 Cambered surface drilling device of tubular tensile test piece
CN202621997U (en) * 2012-05-22 2012-12-26 西安飞机工业(集团)有限责任公司 Clamp for drilling normal direction holes
CN103100901A (en) * 2012-11-15 2013-05-15 无锡市航鹄科技有限公司 Thin-wall cambered-surface positioning tool for inclined hole punching
CN205415037U (en) * 2016-04-11 2016-08-03 哈尔滨建成集团有限公司 A special fixture for drilling of arc work piece

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200080642A (en) * 2018-12-27 2020-07-07 이상섭 a jig of machine tool and an alignment apparatus for a jig of machine tool
KR102134638B1 (en) * 2018-12-27 2020-07-16 이상섭 a jig of machine tool and an alignment apparatus for a jig of machine tool
CN112518903A (en) * 2020-11-27 2021-03-19 德清领千木业有限公司 Arc surface drilling clamp for circular wood products

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Application publication date: 20160629

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