CN102950312A - Porous clamping device capable of automatically centering and drilling long-thin steel-sheet type parts - Google Patents
Porous clamping device capable of automatically centering and drilling long-thin steel-sheet type parts Download PDFInfo
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- CN102950312A CN102950312A CN2011102422555A CN201110242255A CN102950312A CN 102950312 A CN102950312 A CN 102950312A CN 2011102422555 A CN2011102422555 A CN 2011102422555A CN 201110242255 A CN201110242255 A CN 201110242255A CN 102950312 A CN102950312 A CN 102950312A
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Abstract
A porous clamp device capable of automatically centering and drilling long-thin steel-sheet type parts relates to a porous centering and drilling clamp device for long-thin steel sheets, and solves the problem that a porous processing mold for the long-thin steel sheets is complex in structure, long in processing period, high in cost, low in punching accuracy and the like. A claw and a sliding top block are slidingly matched with two first sliding chutes on a base, two nuts are arranged in two second sliding chutes on the base and slidingly matched with the second sliding chutes and fixed with the claw and the sliding top block, a stop plate is arranged on the claw which is detachably connected with a slide plate, an inverted isosceles trapezoid groove and a long groove for storing drilling parts are formed between the claw and the sliding top block, a mold is inverted in the isosceles trapezoid groove, a fastening screw leans on the mold, a drill bushing is inlaid in a drilling bushing hole of the mold, a positioning block of a screw rod is arranged in a screw rod support seat on the base, and two ends of the screw rod are connected with the two nuts in a threaded manner. The porous clamp device is used for clamping and fixing in drilling of the long-thin steel-sheet type parts.
Description
Technical field
The present invention relates to a kind of long thin steel plate parts centering drilling Multi-hole clamping device.
Background technology
During long thin steel plate parts Drilling operation, the punching press punched hole processing methods that adopt routine more.Long thin steel plate parts punching processing needs the design specialized punch die, and complex structure, the process-cycle is long, expense is high, and deflection easily occurs the center line that machining hole is cut in punching, and the punching precision is low, is difficult to guarantee the crudy of long thin steel plate parts porous.
Summary of the invention
The objective of the invention is that long thin steel plate parts porous processing mould structure is complicated, the process-cycle is long, expense is high in order to solve, and deflection easily occurs in the center line that machining hole is cut in punching, the punching precision is low, be difficult to guarantee the problem of the crudy of long thin steel plate parts porous, a kind of long thin steel plate parts self-centering drilling Multi-hole clamping device is provided.
The present invention solves the problems of the technologies described above the technical scheme of taking to be:
Long thin steel plate parts self-centering drilling Multi-hole clamping device of the present invention comprises base, and base is rectangular shape; Described device also comprises screw mandrel, claw, side plate, jackscrew, slip jacking block, die body, a plurality of drill bushing, two nuts and two pressing plates; Nut is comprised of all-in-one-piece square body termination processed and cylindrical bar, has the tapped through hole of perforation on the sidewall of square body termination; Claw comprises the first slide unit, the first limiting stand and baffle plate; The first slide unit is positioned at the bottom of the first limiting stand and makes one with the first limiting stand; The slip jacking block comprises the second slide unit and the second limiting stand; The second slide unit is positioned at the bottom of the second limiting stand and makes one with the second limiting stand;
Center line along its length direction on the upper surface of base is symmetrically arranged with two the first chutes, the first slide unit of claw and the second slide unit of slip jacking block all are slidingly matched with two the first chutes, and claw and slip jacking block are symmetrical arranged with respect to the center line of base width, two pressing plates are symmetricly set on claw and the slip jacking block with respect to the center line of base length direction, two pressing plates and base removably connect, the middle part of the upper surface of base is provided with the leading screw supporting seat, be provided with two the second chutes on the center line of the length direction of the upper surface of base, two the second chutes and two the first chutes be arranged in parallel, and two the second chutes are symmetrical arranged with respect to the center line of base width, be provided with a nut in each second chute, and square body termination and second chute of nut are slidingly matched, claw is provided with the first fixing hole along its short transverse, the slip jacking block is provided with the second fixing hole along its short transverse, the cylindrical bar of a nut in two nuts is packed in the first fixing hole of claw, the cylindrical bar of the nut of residue in two nuts is packed in the second fixing hole of slip jacking block, the perpendicular end of the first limiting stand of claw and two the first chutes is fixed with baffle plate, baffle plate and two the first chutes be arranged in parallel, the first a limiting stand side and side plate corresponding with baffle plate removably connects, the side that the first limiting stand of claw is adjacent with the second limiting stand of slip jacking block from top to bottom is made of the first inclined-plane and the first facade successively, the below that the first limiting stand of claw is positioned at the first facade is provided with a platform, the side that the second limiting stand of slip jacking block is adjacent with the first limiting stand of claw from top to bottom is made of the second inclined-plane and the second facade successively, consist of an inverted isosceles trapezoid groove by the space between the first inclined-plane and the second inclined-plane, consist of an elongated slot of placing the boring part by the space between first facade and the second facade, the shape of cross section of die body is isosceles trapezoid, die body is upside down in this isosceles dovetail groove, the first inclined-plane and the die body adjacent side of the first limiting stand of claw stick together, side plate is provided with the jackscrew screwed hole, the jackscrew screwed hole is threaded with jackscrew, the end of jackscrew leans on a side end face of die body, the upper surface of die body center line equal intervals along its length has a plurality of drill bushings hole, be inlaid with a drill bushing in each drill bushing hole, the middle part of screw mandrel is provided with locating piece, base is provided with two semi arch concave surface supporting seats, two semi arch concave surface supporting seats are symmetrical arranged and are positioned at the both sides of base with respect to the center line of base width, the locating piece of screw mandrel is arranged in the leading screw supporting seat of base, the tapped through hole of a nut in one end of screw mandrel and two nuts is threaded, the tapped through hole of the nut of residue in the other end of screw mandrel and two nuts is threaded, one end of screw mandrel is arranged on one of them of two semi arch concave surface supporting seats on the base, the other end of screw mandrel is arranged on one of the residue of two semi arch concave surface supporting seats on the base, between the lower surface of side plate and the platform on the claw for putting, get boring part mouth.
The invention has the beneficial effects as follows: apparatus structure of the present invention is simple, the cycle of utilizing the long thin steel plate parts of device of the present invention to hole is short, expense is low, and the center line that machining hole is cut in punching is difficult for occuring deflection, the punching precision is high, has also satisfied simultaneously the crudy of long sheet metal porous and the requirement that parts batch is produced.In addition, the present invention has advantages of that also clamping is simple, production efficiency is high, can be generalized in the Multi-hole drilling technology of long thin steel plate parts in the field of machining.
Description of drawings
Fig. 1 is overall structure front view of the present invention, Fig. 2 is that the A of Fig. 1 is to view, Fig. 3 is the B section enlarged drawing of Fig. 1, Fig. 4 is the front view of nut, Fig. 5 is the front view of screw mandrel, Fig. 6 is the top view of die body, and Fig. 7 is the C-C cutaway view of Fig. 6, and Fig. 8 is the front view of claw, Fig. 9 is the top view of Fig. 8, Figure 10 is the left view of Fig. 8, and Figure 11 is the front view of slip jacking block, and Figure 12 is the top view of Figure 11, Figure 13 is the left view of Figure 11, Figure 14 is the front view of base, and Figure 15 is the top view of Figure 14, and Figure 16 is the left view of Figure 14.
The specific embodiment
The specific embodiment one: in conjunction with Fig. 1-Figure 16 explanation, the long sheet metal self-centering drilling Multi-hole clamping device of present embodiment, described device comprises base 2, base 2 is rectangular shape; Described device also comprises screw mandrel 1, claw 4, side plate 6, jackscrew 7, slip jacking block 8, die body 10, a plurality of drill bushing 11, two nuts 3 and two pressing plates 12; Nut 3 is comprised of all-in-one-piece square body termination 3-1 processed and cylindrical bar 3-2, has the tapped through hole 3-3 of perforation on the sidewall of square body termination 3-1; Claw 4 comprises the first slide unit 4-1, the first limiting stand 4-2 and baffle plate 4-3; The first slide unit 4-1 is positioned at the bottom of the first limiting stand 4-2 and makes one with the first limiting stand 4-2; Slip jacking block 8 comprises the second slide unit 8-1 and the second limiting stand 8-2; The second slide unit 8-1 is positioned at the bottom of the second limiting stand 8-2 and makes one with the second limiting stand 8-2;
Center line along its length direction on the upper surface of base 2 is symmetrically arranged with two the first chute 2-1, the first slide unit 4-1 of claw 4 and the second slide unit 8-1 of slip jacking block 8 all are slidingly matched with two the first chute 2-1, and claw 4 is symmetrical arranged with the center line of slip jacking block 8 with respect to base 2 widths, two pressing plates 12 are symmetricly set on claw 4 and the slip jacking block 8 with respect to the center line of base 2 length directions, two pressing plates 12 removably connect with base 2 and (are processed with a plurality of holes on each pressing plate 12, a connecting bolt 9 is housed in each hole, each pressing plate 12 is threaded with base 2 by a plurality of connecting bolts 9, limited the sliding trace of claw 4 and slip jacking block 8 by pressing plate 12), the middle part of the upper surface of base 2 is provided with leading screw supporting seat 2-2, be provided with two the second chute 2-3 (also being chip area simultaneously) on the center line of the length direction of the upper surface of base 2, two the second chute 2-3 and two the first chute 2-1 be arranged in parallel, and two the second chute 2-3 are symmetrical arranged with respect to the center line of base 2 widths, be provided with a nut 3 in each second chute 2-3, and the square body termination 3-1 of nut 3 and the second chute 2-3 are slidingly matched, claw 4 is provided with the first fixing hole 4-4 along its short transverse, slip jacking block 8 is provided with the second fixing hole 8-3 along its short transverse, the cylindrical bar 3-2 of a nut 3 in two nuts 3 is packed in the first fixing hole 4-4 of claw 4, the cylindrical bar 3-2 of the nut 3 of residue in two nuts 3 is packed in the second fixing hole 8-3 of slip jacking block 8 (be used for driving claw 4 and slip jacking block 8 slides), the perpendicular end of the first limiting stand 4-2 of claw 4 and two the first chute 2-1 is fixed with baffle plate 4-3 and (is the boring part, spacing with die body 10, the boring part is long thin steel plate parts), baffle plate 4-3 and two the first chute 2-1 be arranged in parallel, a side and the side plate 6 that the first limiting stand 4-2 is corresponding with baffle plate 4-3 removably connect (side that the first limiting stand 4-2 and baffle plate 4-3 are corresponding and side plate 6 removably connect by two attachment screws 5), the side that the first limiting stand 4-2 of claw 4 is adjacent with the second limiting stand 8-2 of slip jacking block 8 from top to bottom is made of the first inclined-plane 4-6 and the first facade 4-7 successively, the below that the first limiting stand 4-2 of claw 4 is positioned at the first facade 4-7 is provided with a platform 4-8, the side that the second limiting stand 8-2 of slip jacking block 8 is adjacent with the first limiting stand 4-2 of claw 4 from top to bottom is made of the second inclined-plane 8-4 and the second facade 8-5 successively, consist of an inverted isosceles trapezoid groove by the space between the first inclined-plane 4-6 and the second inclined-plane 8-4, consist of an elongated slot of placing the boring part by the space between first facade 4-7 and the second facade 8-5, the shape of cross section of die body 10 is isosceles trapezoid, die body 10 is upside down in this isosceles dovetail groove, the first inclined-plane 4-6 and die body 10 adjacent side of the first limiting stand 4-2 of claw 4 stick together (for working face), side plate 6 is provided with the jackscrew screwed hole, the jackscrew screwed hole is threaded with jackscrew 7, the end of jackscrew 7 leans on a side end face of die body 10 and (is used for die body 10 location), the upper surface of die body 10 center line equal intervals along its length has a plurality of drill bushings hole 10-1 (the drill bushing hole 10-1 on the die body 10 is corresponding one by one with the hole on the boring part), be inlaid with a drill bushing 11 (being beneficial to replacement) in each drill bushing hole 10-1, the middle part of screw mandrel 1 is provided with locating piece 1-1, base 2 is provided with two semi arch concave surface supporting seat 2-4, two semi arch concave surface supporting seat 2-4 are symmetrical arranged and are positioned at the both sides of base 2 with respect to the center line of base 2 widths, the locating piece 1-1 of screw mandrel 1 is arranged in the leading screw supporting seat 2-2 of base 2, the tapped through hole 3-3 of a nut 3 in one end of screw mandrel 1 and two nuts 3 is threaded, the tapped through hole 3-3 of the nut 3 of residue in the other end of screw mandrel 1 and two nuts 3 be threaded (two nuts 3 can move axially along screw mandrel 1), one end of screw mandrel 1 is arranged on one of them of two semi arch concave surface supporting seat 2-4 on the base 2, the other end of screw mandrel 1 is arranged on one of the residue of two semi arch concave surface supporting seat 2-4 on the base 2, between the platform 4-8 on the lower surface of side plate 6 and the claw 4 for putting, get boring part mouth 13.
The specific embodiment two: in conjunction with Fig. 1 and Fig. 5 explanation, the two ends of the screw mandrel 1 of present embodiment is flat termination 1-2.Design utilizes jaw to fix like this.Other is identical with the specific embodiment one.
The specific embodiment three: in conjunction with Fig. 1, Fig. 2, Figure 14 and Figure 15 explanation, the base 2 of present embodiment is the cast steel base.So design, wearability is good.Other is identical with the specific embodiment one or two.
The specific embodiment four: in conjunction with Fig. 1 and Fig. 5 explanation, the screw mandrel 1 of present embodiment is the potassium steel screw mandrel.So design, intensity is high, and abrasion resistance properties is good.Other is identical with the specific embodiment one or two.
The specific embodiment five: in conjunction with Fig. 1 and Fig. 4 explanation, the nut 3 of present embodiment is the potassium steel nut.So design, intensity is high, and abrasion resistance properties is good.Other is identical with the specific embodiment one or two.
The course of work: the part of will holing (i.e. long thin steel plate parts) is from putting, get after boring part mouth 13 positions put into the platform 4-8 of claw 4, one end of long thin steel plate parts leans on baffle plate 4-3, turn the 1-2 position, flat termination of screw mandrel 1 with spanner, the locating piece 1-1 of screw mandrel 1 is seated on the screw mandrel supporting seat 2-2 of base 2, drive two nuts 3 by the screw thread transmission, two nuts 3 move to the center of base 2 by two cylindrical bar 3-2 drive claws 4 and slip jacking block 8 simultaneously, the two sides of die body 10 directly contact with the first inclined-plane 4-6 of claw 4 and the second inclined-plane 8-4 of slip jacking block 8, when drive die body 10 upward slidings are close to long thin steel plate parts to the jacking block 8 that slides, stop to slide, rotation jackscrew 7, hold out against die body 10, the self-centering of finishing long thin steel plate parts aligns clamping, pitch-row on the die body 10 is corresponding one by one with the pitch-row on the long thin steel plate parts, according to the 10-1 position, drill bushing hole on the die body 10, porous on the long thin steel plate parts of drilling realizes long thin steel plate parts self-centering Multi-hole drilling processing.
Claims (5)
1. one kind long thin steel plate parts self-centering drilling Multi-hole clamping device, described device comprises base (2), base (2) is rectangular shape; It is characterized in that: described device also comprises screw mandrel (1), claw (4), side plate (6), jackscrew (7), slip jacking block (8), die body (10), a plurality of drill bushing (11), two nuts (3) and two pressing plates (12); Nut (3) is comprised of all-in-one-piece square body processed termination (3-1) and cylindrical bar (3-2), has the tapped through hole (3-3) of perforation on the sidewall of square body termination (3-1); Claw (4) comprises the first slide unit (4-1), the first limiting stand (4-2) and baffle plate (4-3); The first slide unit (4-1) is positioned at the bottom of the first limiting stand (4-2) and makes one with the first limiting stand (4-2); Slip jacking block (8) comprises the second slide unit (8-1) and the second limiting stand (8-2); The second slide unit (8-1) is positioned at the bottom of the second limiting stand (8-2) and makes one with the second limiting stand (8-2);
Center line along its length direction on the upper surface of base (2) is symmetrically arranged with two the first chutes (2-1), first slide unit (4-1) of claw (4) and second slide unit (8-1) of slip jacking block (8) all are slidingly matched with two the first chutes (2-1), and claw (4) is symmetrical arranged with the center line of slip jacking block (8) with respect to base (2) width, two pressing plates (12) are symmetricly set on claw (4) and the slip jacking block (8) with respect to the center line of base (2) length direction, two pressing plates (12) removably connect with base (2), the middle part of the upper surface of base (2) is provided with leading screw supporting seat (2-2), be provided with two the second chutes (2-3) on the center line of the length direction of the upper surface of base (2), two the second chutes (2-3) be arranged in parallel with two the first chutes (2-1), and two the second chutes (2-3) are symmetrical arranged with respect to the center line of base (2) width, be provided with a nut (3) in each second chute (2-3), and the square body termination (3-1) of nut (3) is slidingly matched with the second chute (2-3), claw (4) is provided with the first fixing hole (4-4) along its short transverse, slip jacking block (8) is provided with the second fixing hole (8-3) along its short transverse, the cylindrical bar (3-2) of the nut (3) in two nuts (3) is packed in first fixing hole (4-4) of claw (4), the cylindrical bar (3-2) of a nut of the residue in two nuts (3) (3) is packed in second fixing hole (8-3) of slip jacking block (8), the perpendicular end of first limiting stand (4-2) of claw (4) and two the first chutes (2-1) is fixed with baffle plate (4-3), baffle plate (4-3) be arranged in parallel with two the first chutes (2-1), a side and side plate (6) that the first limiting stand (4-2) is corresponding with baffle plate (4-3) removably connect, the side that first limiting stand (4-2) of claw (4) is adjacent with second limiting stand (8-2) of slip jacking block (8) from top to bottom is made of the first inclined-plane (4-6) and the first facade (4-7) successively, the below that first limiting stand (4-2) of claw (4) is positioned at the first facade (4-7) is provided with a platform (4-8), the side that second limiting stand (8-2) of slip jacking block (8) is adjacent with first limiting stand (4-2) of claw (4) from top to bottom is made of the second inclined-plane (8-4) and the second facade (8-5) successively, consist of an inverted isosceles trapezoid groove by the space between the first inclined-plane (4-6) and the second inclined-plane (8-4), consist of an elongated slot of placing the boring part by the space between first facade (4-7) and the second facade (8-5), the shape of cross section of die body (10) is isosceles trapezoid, die body (10) is upside down in this isosceles dovetail groove, first inclined-plane (4-6) of first limiting stand (4-2) of claw (4) sticks together with die body (10) adjacent side, side plate (6) is provided with the jackscrew screwed hole, the jackscrew screwed hole is threaded with jackscrew (7), the end of jackscrew (7) leans on a side end face of die body (10), the upper surface of die body (10) center line equal intervals along its length has a plurality of drill bushings hole (10-1), be inlaid with a drill bushing (11) in each drill bushing hole (10-1), the middle part of screw mandrel (1) is provided with locating piece (1-1), base (2) is provided with two semi arch concave surface supporting seats (2-4), two semi arch concave surface supporting seats (2-4) are symmetrical arranged and are positioned at the both sides of base (2) with respect to the center line of base (2) width, the locating piece (1-1) of screw mandrel (1) is arranged in the leading screw supporting seat (2-2) of base (2), the tapped through hole (3-3) of the nut (3) in one end of screw mandrel (1) and two nuts (3) is threaded, the tapped through hole (3-3) of the nut of residue (3) in the other end of screw mandrel (1) and two nuts (3) is threaded, one end of screw mandrel (1) is arranged on one of them of two semi arch concave surface supporting seats (2-4) on the base (2), the other end of screw mandrel (1) is arranged on one of the residue of two the semi arch concave surface supporting seats (2-4) on the base (2), between the platform (4-8) on the lower surface of side plate (6) and the claw (4) for putting, get boring part mouth (13).
2. long thin steel plate parts self-centering drilling Multi-hole clamping device according to claim 1, it is characterized in that: the two ends of screw mandrel (1) is flat termination (1-2).
3. long thin steel plate parts self-centering drilling Multi-hole clamping device according to claim 1 and 2, it is characterized in that: base (2) is the cast steel base.
4. long thin steel plate parts self-centering drilling Multi-hole clamping device according to claim 1 and 2, it is characterized in that: screw mandrel (1) is the potassium steel screw mandrel.
5. long thin steel plate parts self-centering drilling Multi-hole clamping device according to claim 1 and 2, it is characterized in that: nut (3) is the potassium steel nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110242255.5A CN102950312B (en) | 2011-08-23 | 2011-08-23 | Porous clamping device capable of automatically centering and drilling long-thin steel-sheet type parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110242255.5A CN102950312B (en) | 2011-08-23 | 2011-08-23 | Porous clamping device capable of automatically centering and drilling long-thin steel-sheet type parts |
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| CN102950312A true CN102950312A (en) | 2013-03-06 |
| CN102950312B CN102950312B (en) | 2014-12-31 |
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| CN201110242255.5A Active CN102950312B (en) | 2011-08-23 | 2011-08-23 | Porous clamping device capable of automatically centering and drilling long-thin steel-sheet type parts |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567787A (en) * | 2013-10-10 | 2014-02-12 | 武汉船用机械有限责任公司 | Device of processing link plate holes |
| CN103862082A (en) * | 2013-12-11 | 2014-06-18 | 哈尔滨汽轮机厂有限责任公司 | Processing method of small threading hole in fastening screw made of high-temperature alloy |
| CN106112069A (en) * | 2016-08-30 | 2016-11-16 | 贵州枫阳液压有限责任公司 | A kind of frock being automatically positioned axial line |
| CN106624893A (en) * | 2016-12-23 | 2017-05-10 | 贵州黎阳航空动力有限公司 | Drilling and milling device for adjustment sheet type part |
| CN106975938A (en) * | 2017-05-24 | 2017-07-25 | 沈机集团昆明机床股份有限公司 | Without impact ballscrew auxiliary supporting device |
| CN111673504B (en) * | 2020-06-23 | 2021-02-09 | 浙江昌兴科技有限公司 | Mechanical fixture device fixed by using holes |
| CN112388019A (en) * | 2020-11-25 | 2021-02-23 | 安徽信息工程学院 | Multi-station lead screw clamp and lead screw machining method |
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| CN101905428A (en) * | 2010-08-27 | 2010-12-08 | 邝锦富 | Bidirectional clamping mechanism |
| CN202192303U (en) * | 2011-08-23 | 2012-04-18 | 哈尔滨建成集团有限公司 | Multi-hole clamping device for automatically centering and drilling long and thin steel plate parts |
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| CN2923161Y (en) * | 2006-07-11 | 2007-07-18 | 贵州西南工具(集团)有限公司 | Clamping device for processing hollow steel blank by deep hole drilling machine tool |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567787A (en) * | 2013-10-10 | 2014-02-12 | 武汉船用机械有限责任公司 | Device of processing link plate holes |
| CN103567787B (en) * | 2013-10-10 | 2017-01-11 | 武汉船用机械有限责任公司 | Device of processing link plate holes |
| CN103862082A (en) * | 2013-12-11 | 2014-06-18 | 哈尔滨汽轮机厂有限责任公司 | Processing method of small threading hole in fastening screw made of high-temperature alloy |
| CN103862082B (en) * | 2013-12-11 | 2016-04-13 | 哈尔滨汽轮机厂有限责任公司 | The processing method of an aperture worn by high temperature alloy trip bolt |
| CN106112069A (en) * | 2016-08-30 | 2016-11-16 | 贵州枫阳液压有限责任公司 | A kind of frock being automatically positioned axial line |
| CN106624893A (en) * | 2016-12-23 | 2017-05-10 | 贵州黎阳航空动力有限公司 | Drilling and milling device for adjustment sheet type part |
| CN106975938A (en) * | 2017-05-24 | 2017-07-25 | 沈机集团昆明机床股份有限公司 | Without impact ballscrew auxiliary supporting device |
| CN106975938B (en) * | 2017-05-24 | 2023-06-13 | 沈机集团昆明机床股份有限公司 | Impact-free ball screw auxiliary supporting device |
| CN111673504B (en) * | 2020-06-23 | 2021-02-09 | 浙江昌兴科技有限公司 | Mechanical fixture device fixed by using holes |
| CN112388019A (en) * | 2020-11-25 | 2021-02-23 | 安徽信息工程学院 | Multi-station lead screw clamp and lead screw machining method |
| CN112388019B (en) * | 2020-11-25 | 2022-05-24 | 安徽信息工程学院 | Multi-station lead screw clamp and lead screw machining method |
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| CN102950312B (en) | 2014-12-31 |
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