CN104999113A - High-precision automatic-adjustment universal radial drill jig - Google Patents
High-precision automatic-adjustment universal radial drill jig Download PDFInfo
- Publication number
- CN104999113A CN104999113A CN201510440056.3A CN201510440056A CN104999113A CN 104999113 A CN104999113 A CN 104999113A CN 201510440056 A CN201510440056 A CN 201510440056A CN 104999113 A CN104999113 A CN 104999113A
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- CN
- China
- Prior art keywords
- movable block
- cylindrical hole
- drill
- bushing plate
- plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/28—Drill jigs for workpieces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a high-precision automatic-adjustment universal radial drill jig. The high-precision automatic-adjustment universal radial drill jig comprises a drill plate, a compression screw, a pressing plate and a nut. A cylindrical hole is formed in the middle of the drill plate. A plurality of grooves are formed in the wall of the cylindrical hole of the drill plate at intervals in the circumferential direction of the drill plate. A movable block capable of stretching out and retracting in the radial direction of the cylindrical hole is embedded in each groove. The side face, facing the cylindrical hole, of each movable block is a conical surface. Besides, the bottom of each movable block extends out of the lower end face of the drill plate and forms a spigot locating portion. The part, located below the pressing plate, of the screw is further sleeved with a guide sleeve assembly. The outer circle of the guide sleeve assembly is provided with conical surfaces and cylindrical surfaces alternately. The conical surfaces of the outer circle of the guide sleeve assembly are matched with the conical surfaces of the movable blocks in a one-to-one correspondence mode. The cylindrical surfaces of the outer circle of the guide sleeve assembly are matched with the wall of the cylindrical hole of the drill plate. According to the high-precision automatic-adjustment universal radial drill jig, the diameters of locating spigots can be automatically adjusted in a certain range, drill bushings with different inner diameters can also be replaced in a certain range, and the universality of the drill jig is greatly improved.
Description
Technical field
The present invention relates to drill jig field, particularly relate to high accuracy self-regulated universal rock arm and bore drill jig.
Background technology
As shown in Figure 1, current automobile brake drum radial drill drill jig is generally made up of drill jig body 01, drill bushing 02, drill bushing trip bolt 03, handle 04, because of according to the positioning spigot diameter of specific product and processing bolt hole dimension in design process, install aperture to the positioning spigot of drill jig and drill bushing and carry out single specialized designs, it does not possess versatility usually; In addition, the design of drill jig positioning spigot is generally matched in clearance, and when when gap is larger, the design of clamping precision poor, fit clearance is less than normal in actual use, drill jig clamping and dismounting difficulty, be not suitable for applying to the higher product of product bore position degree.
Summary of the invention
In order to solve deficiency of the prior art, a kind of high high accuracy self-regulated universal rock arm of fit clearance, quality of fit of can automatically eliminating is the object of the present invention is to provide to bore drill jig.
For achieving the above object, the present invention is by the following technical solutions:
High accuracy self-regulated universal rock arm bores drill jig, comprise bushing plate, clamping screw, pressing plate and nut, the middle part of described bushing plate is provided with cylindrical hole, described clamping screw is through the cylindrical hole of bushing plate, and extend the upper surface of bushing plate, described nut, pressing plate is sequentially set in one end that clamping screw extends bushing plate upper surface from top to bottom, nut is connected with the threaded portion of clamping screw, describedly on bushing plate, be along the circumferential direction removably fixed with multiple drill bushing, the hole wall of described bushing plate cylindrical hole is interval with multiple groove along its circumferencial direction, all being nested with in each groove can along the movable block of the radial expansion of cylindrical hole, each movable block is the conical surface towards the side of cylindrical hole, and the bottom of each movable block is all extended the lower surface of bushing plate and is formed seam location division, described screw rod is also arranged with fairlead assembly in the below of pressing plate, the outer ring of described fairlead assembly is alternately provided with the conical surface and the face of cylinder, the conical surface of fairlead assembly outer ring coordinates with the conical surface one_to_one corresponding of each movable block, the face of cylinder of fairlead assembly outer ring coordinates with the hole wall of bushing plate cylindrical hole.
Described movable block is nested in groove by guide spiro rod connection, and guide spiro rod is arranged with spring, and spring retainer is between movable block and groove inner wall.
Described fairlead assembly comprises conical guiding sleeve and cylinder fairlead, conical guiding sleeve is coaxially nested in the middle part of cylinder fairlead, described cylinder fairlead outer ring is the face of cylinder, the outer ring of conical guiding sleeve is the conical surface, the outer ring of cylinder fairlead is interval with breach, and breach is identical with the number of movable block.
Described drill bushing is detachably fixed on bushing plate by screw.
Described bushing plate is fixed with hand handle.
The present invention adopts above technical scheme, has following beneficial effect: the present invention can adjust positioning spigot diameter within the specific limits automatically, also can change different inner diameters drill bushing within the specific limits, substantially increase the versatility of this drill jig.In addition, the present invention can adjust positioning spigot diameter within the specific limits automatically, eliminates drill jig and Workpiece fixing fit clearance, substantially increases drill jig assembly precision, thus substantially increase the positional precision in Product processing hole.
In a word, drill jig of the present invention has stronger versatility and assembly precision, drops into and greatly reduces, directly reduce frock input cost and the management cost of company to enterprise's drilling jig tool; And it is also more quick to the drill jig exploitation of new product, often need only increase and design and produce drill bushing, substantially increase new product development efficiency, because its assembly precision is higher, be applicable to positional precision comparatively high product Drilling operation, be not worse than the positional precision after Cutter Body Processing with Machining Center, there is significant economic benefit.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details:
Fig. 1 is the generalized section of automobile brake drum radial drill drill jig in prior art;
Fig. 2 is the generalized section that high accuracy self-regulated universal rock arm of the present invention bores drill jig;
Fig. 3 is the top view that high accuracy self-regulated universal rock arm of the present invention bores drill jig;
Fig. 4 is the top view of bushing plate in the present invention;
Fig. 5 is the top view of cylinder fairlead in the present invention.
Detailed description of the invention
As shown in one of Fig. 2 to 5, the present invention includes bushing plate 1, clamping screw 2, pressing plate 3 and nut 4, the middle part of bushing plate 1 is provided with cylindrical hole, clamping screw 2 is through the cylindrical hole of bushing plate 1, and extend the upper surface of bushing plate 1, nut 4, pressing plate 3 is sequentially set in one end that clamping screw 2 extends bushing plate 1 upper surface from top to bottom, nut 4 is connected with the threaded portion of clamping screw 2, bushing plate 1 is along the circumferential direction removably fixed with multiple drill bushing 5, drill bushing 5 is detachably fixed on bushing plate 1 by screw 6, drill bushing 5 can be processed aperture difference according to different product and change same outer diameter and the different drill bushing of internal diameter.The hole wall of bushing plate 1 cylindrical hole is interval with multiple groove 101 along its circumferencial direction, all being nested with in each groove 101 can along the movable block 7 of the radial expansion of cylindrical hole, each movable block 7 is the conical surface towards the side of cylindrical hole, and the bottom of each movable block 7 is all extended the lower surface of bushing plate 1 and is formed seam location division 71, screw rod is also arranged with fairlead assembly 8 in the below of pressing plate 3, the outer ring of fairlead assembly 8 is alternately provided with the conical surface and the face of cylinder, the conical surface of fairlead assembly 8 outer ring coordinates with the conical surface one_to_one corresponding of each movable block 7, the face of cylinder of fairlead assembly 8 outer ring coordinates with the hole wall of bushing plate 1 cylindrical hole.
Movable block 7 is nested in groove 101 by guide spiro rod 9 connection, and guide spiro rod 9 is arranged with spring 10, spring 10 is spacing between movable block 7 and groove 101 inwall.
Fairlead assembly 8 comprises conical guiding sleeve 81 and cylinder fairlead 82, conical guiding sleeve 81 is coaxially nested in the middle part of cylinder fairlead 82, cylinder fairlead 82 outer ring is the face of cylinder, the outer ring of conical guiding sleeve 81 is the conical surface, the outer ring of cylinder fairlead 82 is interval with breach 821, and breach 821 is identical with the number of movable block 7, so just form the conical surface be arranged alternately and the face of cylinder.
Bushing plate 1 is fixed with hand 11.
Operation principle of the present invention: first workpiece is placed on drilling machine workbench through clamping screw 2, bushing plate 1 is installed on workpiece to be processed, and now movable block 7 inside contracts under the effect of spring 10 power, and the diameter D2 of its initial seam location division 71 is less than bushing plate 1 seam diameter D1, and bushing plate 1 can easily be installed on product, successively fairlead assembly 8 is installed again, pressing plate 3 and nut 4, after fairlead assembly 8 outer ring notch alignment movable block 7, the face of cylinder, outer ring of fairlead assembly 8 is fitted in bushing plate 1 cylindrical hole, by locking nut 4, the cylinder fairlead 82 of fairlead assembly 8 is led downwards, avoid fairlead assembly 8 deflection, until the outer ring conical surface of fairlead assembly 8 is adjacent to movable block 7 conical surface, and under the effect of nut 4 coupling mechanism force, the conical surface of fairlead assembly 8 outer ring promotes movable block 7 radial direction and opens, the seam location division 71 of movable block 7 is finally made to be adjacent to Workpiece fixing seam hole inwall, automatic elimination fit clearance, with the different positioning spigot hole internal diameter of the workpiece adapting to certain limit and raising positioning precision.
Claims (5)
1. high accuracy self-regulated universal rock arm bores drill jig, comprise bushing plate, clamping screw, pressing plate and nut, the middle part of described bushing plate is provided with cylindrical hole, described clamping screw is through the cylindrical hole of bushing plate, and extend the upper surface of bushing plate, described nut, pressing plate is sequentially set in one end that clamping screw extends bushing plate upper surface from top to bottom, nut is connected with the threaded portion of clamping screw, describedly on bushing plate, be along the circumferential direction removably fixed with multiple drill bushing, it is characterized in that: the hole wall of described bushing plate cylindrical hole is interval with multiple groove along its circumferencial direction, all being nested with in each groove can along the movable block of the radial expansion of cylindrical hole, each movable block is the conical surface towards the side of cylindrical hole, and the bottom of each movable block is all extended the lower surface of bushing plate and is formed seam location division, described screw rod is also arranged with fairlead assembly in the below of pressing plate, the outer ring of described fairlead assembly is alternately provided with the conical surface and the face of cylinder, the conical surface of fairlead assembly outer ring coordinates with the conical surface one_to_one corresponding of each movable block, the face of cylinder of fairlead assembly outer ring coordinates with the hole wall of bushing plate cylindrical hole.
2. high accuracy self-regulated universal rock arm according to claim 1 bores drill jig, it is characterized in that: described movable block is nested in groove by guide spiro rod connection, and guide spiro rod is arranged with spring, and spring retainer is between movable block and groove inner wall.
3. high accuracy self-regulated universal rock arm according to claim 1 bores drill jig, it is characterized in that: described fairlead assembly comprises conical guiding sleeve and cylinder fairlead, conical guiding sleeve is coaxially nested in the middle part of cylinder fairlead, described cylinder fairlead outer ring is the face of cylinder, the outer ring of conical guiding sleeve is the conical surface, the outer ring of cylinder fairlead is interval with breach, and breach is identical with the number of movable block.
4. high accuracy self-regulated universal rock arm according to claim 1 bores drill jig, it is characterized in that: described drill bushing is detachably fixed on bushing plate by screw.
5. high accuracy self-regulated universal rock arm according to claim 1 bores drill jig, it is characterized in that: described bushing plate is fixed with hand handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510440056.3A CN104999113B (en) | 2015-07-24 | 2015-07-24 | High accuracy self-regulated universal rock arm bores drill jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510440056.3A CN104999113B (en) | 2015-07-24 | 2015-07-24 | High accuracy self-regulated universal rock arm bores drill jig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104999113A true CN104999113A (en) | 2015-10-28 |
| CN104999113B CN104999113B (en) | 2017-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510440056.3A Expired - Fee Related CN104999113B (en) | 2015-07-24 | 2015-07-24 | High accuracy self-regulated universal rock arm bores drill jig |
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| Country | Link |
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| CN (1) | CN104999113B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500346A (en) * | 2017-02-28 | 2018-09-07 | 湖南新辉凡智能科技有限公司 | A kind of boring bar tool |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB591206A (en) * | 1945-05-02 | 1947-08-11 | Albert Grossman | Improvements relating to machine index devices |
| DE2750806A1 (en) * | 1977-11-14 | 1979-05-17 | Robert Wolff | Drilling machine for dowel plugged furniture pieces - has paired centering lugs on plates on U=shaped unit for guide hole alignment |
| CN202062257U (en) * | 2011-03-17 | 2011-12-07 | 于新明 | Novel drilling equant disc |
| CN202571391U (en) * | 2011-12-01 | 2012-12-05 | 江苏金环数控机床有限公司 | Drill jig |
| CN103286352A (en) * | 2013-07-04 | 2013-09-11 | 中电电气(江苏)股份有限公司 | Quick positioning drill jig for round flanges |
| CN203751393U (en) * | 2014-04-10 | 2014-08-06 | 江西铜业股份有限公司 | Centering round hole elastic seat core type drilling jig |
| CN104384563A (en) * | 2014-10-09 | 2015-03-04 | 天津铁路信号有限责任公司 | Automatic centering hole machining device |
-
2015
- 2015-07-24 CN CN201510440056.3A patent/CN104999113B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB591206A (en) * | 1945-05-02 | 1947-08-11 | Albert Grossman | Improvements relating to machine index devices |
| DE2750806A1 (en) * | 1977-11-14 | 1979-05-17 | Robert Wolff | Drilling machine for dowel plugged furniture pieces - has paired centering lugs on plates on U=shaped unit for guide hole alignment |
| CN202062257U (en) * | 2011-03-17 | 2011-12-07 | 于新明 | Novel drilling equant disc |
| CN202571391U (en) * | 2011-12-01 | 2012-12-05 | 江苏金环数控机床有限公司 | Drill jig |
| CN103286352A (en) * | 2013-07-04 | 2013-09-11 | 中电电气(江苏)股份有限公司 | Quick positioning drill jig for round flanges |
| CN203751393U (en) * | 2014-04-10 | 2014-08-06 | 江西铜业股份有限公司 | Centering round hole elastic seat core type drilling jig |
| CN104384563A (en) * | 2014-10-09 | 2015-03-04 | 天津铁路信号有限责任公司 | Automatic centering hole machining device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500346A (en) * | 2017-02-28 | 2018-09-07 | 湖南新辉凡智能科技有限公司 | A kind of boring bar tool |
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| Publication number | Publication date |
|---|---|
| CN104999113B (en) | 2017-03-15 |
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