CN102756331B - Precise ball lock positioning gripping head - Google Patents

Precise ball lock positioning gripping head Download PDF

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Publication number
CN102756331B
CN102756331B CN201210255754.2A CN201210255754A CN102756331B CN 102756331 B CN102756331 B CN 102756331B CN 201210255754 A CN201210255754 A CN 201210255754A CN 102756331 B CN102756331 B CN 102756331B
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China
Prior art keywords
hole
wheel flange
screw
ball
ball stud
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CN201210255754.2A
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Chinese (zh)
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CN102756331A (en
Inventor
杨天文
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JOUDER PRECISION INDUSTRY (KUNSHAN) Co Ltd
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JOUDER PRECISION INDUSTRY (KUNSHAN) Co Ltd
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Publication of CN102756331A publication Critical patent/CN102756331A/en
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Abstract

The invention discloses a precise ball lock positioning gripping head comprising a base ring, a limit pin locking screw, a clamping ring, a ball pin, a spring, a ball pin limit nut and a ball pin extraction screw, wherein the base ring and the clamping ring are fixed coaxially through a connection screw; a clamping hole is formed in the clamping ring; a stepped hole and a through groove are formed in the side wall of the clamping ring; the ball pin limit nut is mounted on the threaded part of the stepped hole; the ball pin is mounted on the straight hole part of the stepped hole and is limited through a throat; the spring is pressed between the ball pin limit nut and the ball pin; two side walls of the through groove are locked by locking threaded pieces with opposite countersunk head holes and the clamping ring; a through hole is formed in the base ring; a vertical through hole is formed in the side wall of the base ring; the limit pin is inserted into the through hole in the side wall of the base ring; and the limit pin locking screw is screwed in a countersunk head screw hole to press the limit pin. According to the precise ball lock positioning gripping head provided by the invention, problems in quick clamping and accurate positioning during a batch process are solved.

Description

Accurate ball locking bit chuck
Technical field
The present invention relates to Machining Technology, relate in particular to a kind of ball lock punch fast clamp localization tool.
Background technology
The processing mode of at present comparatively general a kind of special-shaped cutting edge ball lock punch is to adopt surface grinding machine processing: first use ball locking bit tool to cut out a gulde edge at workpiece cutting edge place; Re-use punch former and clamp each and play height gage, by height gage by gulde edge leveling; Then adjust the processing of carrying out special-shaped cutting edge behind the center of workpiece.In this processing mode, the process-cycle of single workpiece is 35 ~ 40min, and the time that wherein leveling of the clamping of the system of cutting of gulde edge, height gage, gulde edge, the adjustment of workpiece centre spend is about 8min.
The processing mode of another kind of special-shaped cutting edge ball lock punch is to adopt the processing of numerical-control multi-surface body grinding machine: first use surface grinding machine to cut out a gulde edge at workpiece cutting edge place; Clamp workpiece by the scroll chuck on numerical-control multi-surface grinding machine or collet again, use amesdial centering gulde edge, adjust workpiece centre; Finally carry out the processing of special-shaped cutting edge.In this processing mode, the process-cycle of single workpiece is about 16min, and the time that wherein centering of the system of cutting of gulde edge, gulde edge, the adjustment of workpiece centre spend is about 8min.
In above-mentioned two kinds of modes, the secondary process time has all reached 8min, especially, in numerical-control multi-surface body grinding machine processing mode, has almost occupied the process time of half, has caused great time waste.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of accurate ball locking bit chuck, solve Quick-clamped, pinpoint problem in batch machining process.
Technical scheme: for solving the problems of the technologies described above, the technical solution used in the present invention is:
Accurate ball locking bit chuck, comprises that base ring, spacer pin, spacer pin lock screw, wheel flange, ball stud, spring, ball stud stop nut and ball stud extract screw, and described base ring and wheel flange are coaxially fixing by connecting screw;
On the central axis of wheel flange, be provided with the clamping hole of the both ends of the surface that are communicated with wheel flange; On the sidewall of wheel flange, be provided with vertically towards clamping hole and be communicated with the stepped hole of clamping hole, the orifice end of described stepped hole is provided with the screw thread of adaptive ball stud stop nut, the straight hole that intermediate ends is adaptive ball stud, the hole tail end formation reducing of facing clamping hole, ball stud extracts screw and ball stud stop nut is fixed, ball stud stop nut is arranged on the screw thread place of stepped hole, ball stud is arranged on the straight hole place of stepped hole spacing by reducing, and spring compression is between ball stud stop nut and ball stud; The groove that is also provided with the vertical both ends of the surface towards clamping hole, also connection blessing hole and wheel flange on the sidewall of wheel flange, is provided with relative counter sink on the two side of groove, lock by relative counter sink and wheel flange locking screw part two side;
On the central axis of base ring, be provided with the through hole of the both ends of the surface that are communicated with base ring, and the internal diameter of through hole is greater than the internal diameter of clamping hole; On the sidewall of base ring, be provided with vertically towards through hole and be communicated with the countersunk head screw of through hole, spacer pin inserts in through hole, and spacer pin lock screw screws in and in countersunk head screw, compresses spacer pin.
Said apparatus in use, first inserts workpiece in clamping hole, and the insertion depth of workpiece can be adjusted by spacer pin, after the adjustment of spacer pin position is suitable, is pressed in through hole, to axially positioning of workpiece by spacer pin lock screw; After the axial location of workpiece completes, turning of work piece in clamping hole, in the time that the ball lock groove location on workpiece is positioned at stepped hole below, ball stud is under the effect of spring, and ball lock groove is withstood in its end, and limits workpiece and be rotated further; Finally by wheel flange locking screw part, common two side is locked, realize the radial location to workpiece, now all location of workpiece complete, and whole process is very simple and quick.
In said apparatus, the reducing of stepped hole is when preventing that workpiece from not putting into clamping hole, and ball stud occurs from the phenomenon dropping in stepped hole, but reducing can not be too small, otherwise the end of ball stud can not free in and out reducing, the radial location of impact to workpiece.On wheel flange, the design of groove is in order to make clamping hole have certain stroke, can to become less severe or clamping work pieces.The internal diameter that the internal diameter of the through hole of design base ring is greater than clamping hole is the effect of stepping down in order to play, and after workpiece is inserted, the sidewall of the sidewall of workpiece and base ring through hole can not produce power effect, affects positioning precision.
Preferably, described base ring and wheel flange coordinate by concavo-convex ledge structure, ensure that the cooperation between base ring and wheel flange is stable, reliable.
Preferably, described wheel flange is divided into two sector regions, is designated as respectively the first sector region and the second sector region; The installing hole of described connecting screw is distributed in the first sector region, and described groove and counter sink are positioned at the second sector region; On the end face that described base ring matches with wheel flange, the end face in the position of corresponding the second sector region and the second fan section exists and steps down; Avoid wheel flange in the process clamping and become less severe, the impact of base ring on wheel flange moving part.
Preferably, between described groove and clamping hole, by round-corner transition, for dispersive stress, prevent wheel flange fracture or workpiece is caused damage.
Preferably, on the outer wall of described wheel flange, be provided with the gulde edge of instruction workpiece installation site, just can detect like this direction and the position of workpiece by detecting the position of gulde edge.
Preferably, described relative counter sink has two groups, between two groups of counter sinks, separates by the groove that is arranged on wheel flange surface and radially offer along it, avoids interfering between wheel flange locking screw part, affects positioning precision.
Beneficial effect: accurate ball locking bit chuck provided by the invention, clamping good rigidly, can bear larger cutting force; Clamping good concentricity (can remain in 0.005), perpendicularity good (can remain in 0.01), repetitive positioning accuracy is high; Owing to carrying location structure, need hardly aligning, therefore the secondary process time of workpiece processing can be controlled in 40s, greatly improve operating efficiency.
Brief description of the drawings
Fig. 1 is decomposition texture schematic diagram of the present invention;
Fig. 2 is elevational cross-sectional view of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
Be a kind of accurate ball locking bit chuck as shown in Figure 1 and Figure 2, comprise that base ring 1, spacer pin 2, spacer pin lock screw 3, wheel flange 8, ball stud 7, spring 6, ball stud stop nut 5 and ball stud extract screw 4, described base ring 1 and wheel flange 8 by concavo-convex ledge structure coordinate, and coaxially fixing by connecting screw 9.
On the central axis of wheel flange 8, be provided with the clamping hole of the both ends of the surface that are communicated with wheel flange 8; On the sidewall of wheel flange 8, be provided with vertically towards clamping hole and be communicated with the stepped hole of clamping hole, the orifice end of described stepped hole is provided with the screw thread of adaptive ball stud stop nut 5, the straight hole that intermediate ends is adaptive ball stud 7, the hole tail end formation reducing of facing clamping hole, it is fixing with ball stud stop nut 5 that ball stud is extracted screw 4, ball stud stop nut 5 is arranged on the screw thread place of stepped hole, ball stud 7 is arranged on the straight hole place of stepped hole spacing by reducing, and spring 6 is pressed between ball stud stop nut 5 and ball stud 7; The groove that is also provided with the vertical both ends of the surface towards clamping hole, also connection blessing hole and wheel flange 8 on the sidewall of wheel flange 8, is provided with relative counter sink on the two side of groove, lock by relative counter sink and wheel flange locking screw part 11 two side.
On the central axis of base ring 1, be provided with the through hole of the both ends of the surface that are communicated with base ring 1, and the internal diameter of through hole is greater than the internal diameter of clamping hole; On the sidewall of base ring 1, be provided with vertically towards through hole and be communicated with the countersunk head screw of through hole, spacer pin 2 inserts in through hole, and spacer pin lock screw 3 screws in and in countersunk head screw, compresses spacer pin 2.
Described wheel flange 8 is divided into two sector regions, is designated as respectively the first sector region and the second sector region; The installing hole of described connecting screw 9 is distributed in the first sector region, and described groove and counter sink are positioned at the second sector region; On the end face that described base ring 1 matches with wheel flange 8, the end face in the position of corresponding the second sector region and the second fan section exists and steps down.
Between described groove and clamping hole, pass through round-corner transition; On the outer wall of described wheel flange 8, be provided with the gulde edge of instruction workpiece installation site; Described relative counter sink has two groups, between two groups of counter sinks, separates by the groove that is arranged on wheel flange 8 surfaces and radially offer along it.
When work, first ball lock punch 10 is inserted in the clamping hole of wheel flange 8, the degree of depth that ball lock punch 10 inserts can be adjusted by spacer pin 2, screws the fixing spacer pin 2 of spacer pin lock screw 3 after mixing up; Then rotate ball lock punch 10, under the ball lock groove on ball lock punch 10 turns to ball stud 7 time, can hear " click clatter " sound, ball stud 7 snaps in ball lock groove (actual is that the bulb of ball stud 7 is just stuck on two inclines of ball lock groove) under the thrust of spring 6, realize location, now the position of ball lock groove is relevant to the gulde edge on wheel flange 8 external diameters, so only need beat the gulde edge of showing on wheel flange 8 and just can know the orientation of ball lock punch 10; Finally lock groove two side by wheel flange locking screw part 11, just can be by fixing ball lock punch 10.After machining, unclamp wheel flange locking screw part 11, pull-up ball stud is extracted screw 4, mentions ball stud 7, just can take off workpiece.
The external diameter of applying precondition that this kind of mode clamp and be ball lock punch 10 need be unified in 0.005mm, otherwise the external diameter of workpiece is larger on the concentricity impact of clamping, fortunately standardization of the outside dimension of ball lock punch 10, seriation, can realize with current board processing conditions.For preventing that maloperation from unscrewing the connecting screw 9 of base ring 1 and wheel flange 8, can in connecting screw hole, coat yellow paint in addition, be warned.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (6)

1. accurate ball locking bit chuck, it is characterized in that: comprise that base ring (1), spacer pin (2), spacer pin lock screw (3), wheel flange (8), ball stud (7), spring (6), ball stud stop nut (5) and ball stud extract screw (4), described base ring (1) and wheel flange (8) are coaxially fixing by connecting screw (9);
On the central axis of wheel flange (8), be provided with the clamping hole of the both ends of the surface that are communicated with wheel flange (8), on the sidewall of wheel flange (8), be provided with vertically towards clamping hole, and be communicated with the stepped hole of clamping hole, the orifice end of described stepped hole is provided with the screw thread of adaptive ball stud stop nut (5), intermediate ends is the straight hole of adaptive ball stud (7), the hole tail end that faces clamping hole forms reducing, it is fixing with ball stud stop nut (5) that ball stud is extracted screw (4), ball stud stop nut (5) is arranged on the screw thread place of stepped hole, ball stud (7) is arranged on the straight hole place of stepped hole spacing by reducing, spring (6) is pressed between ball stud stop nut (5) and ball stud (7), on the sidewall of wheel flange (8), be also provided with vertically towards clamping hole and be communicated with clamping hole and the groove of the both ends of the surface of wheel flange (8), on the two side of groove, be provided with relative counter sink, two side is by relative counter sink and wheel flange locking screw part (11) locking,
On the central axis of base ring (1), be provided with the through hole of the both ends of the surface that are communicated with base ring (1), and the internal diameter of through hole is greater than the internal diameter of clamping hole; On the sidewall of base ring (1), be provided with vertically towards through hole and be communicated with the countersunk head screw of through hole, spacer pin (2) inserts in through hole, and spacer pin lock screw (3) screws in and in countersunk head screw, compresses spacer pin (2).
2. accurate ball locking bit chuck according to claim 1, is characterized in that: described base ring (1) and wheel flange (8) coordinate by concavo-convex ledge structure.
3. accurate ball locking bit chuck according to claim 1, is characterized in that: described wheel flange (8) is divided into two sector regions, is designated as respectively the first sector region and the second sector region; The installing hole of described connecting screw (9) is distributed in the first sector region, and described groove and counter sink are positioned at the second sector region; On the end face that described base ring (1) matches with wheel flange (8), the end face in the position of corresponding the second sector region and the second fan section exists and steps down.
4. accurate ball locking bit chuck according to claim 1, is characterized in that: between described groove and clamping hole, pass through round-corner transition.
5. accurate ball locking bit chuck according to claim 1, is characterized in that: the gulde edge that is provided with instruction workpiece installation site on the outer wall of described wheel flange (8).
6. accurate ball locking bit chuck according to claim 1, is characterized in that: described relative counter sink has two groups, between two groups of counter sinks, separates by the groove that is arranged on wheel flange (8) surface and radially offer along it.
CN201210255754.2A 2012-07-23 2012-07-23 Precise ball lock positioning gripping head Active CN102756331B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201210255754.2A CN102756331B (en) 2012-07-23 2012-07-23 Precise ball lock positioning gripping head

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CN102756331B true CN102756331B (en) 2014-08-13

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104227459A (en) * 2014-08-22 2014-12-24 优德精密工业(昆山)股份有限公司 Rapid machining jig for ball lock mechanism
CN106885518A (en) * 2017-03-15 2017-06-23 北京航空航天大学 A kind of polytypic high accuracy planetary roller screw pair accuracy detecting device
CN107962495A (en) * 2017-11-24 2018-04-27 中山复盛机电有限公司 Float the polishing jig sold

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101456132A (en) * 2008-11-26 2009-06-17 绵阳新晨动力机械有限公司 Heavy workpiece accurate processing positioner
CN201776671U (en) * 2010-07-27 2011-03-30 安徽信发齿轮机械有限公司 Elasticity clamping grinding hole clamp of cylindrical straight-tooth dual gear
CN102069396A (en) * 2009-11-23 2011-05-25 天润曲轴股份有限公司 Rolling crankshaft fillet quick clamping bracket
CN102248484A (en) * 2011-07-22 2011-11-23 天津市中马骏腾精密机械制造有限公司 Eccentric clamping fixture
CN202726731U (en) * 2012-07-23 2013-02-13 优德精密工业(昆山)有限公司 Precision clamp for positioning ball locks

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101456132A (en) * 2008-11-26 2009-06-17 绵阳新晨动力机械有限公司 Heavy workpiece accurate processing positioner
CN102069396A (en) * 2009-11-23 2011-05-25 天润曲轴股份有限公司 Rolling crankshaft fillet quick clamping bracket
CN201776671U (en) * 2010-07-27 2011-03-30 安徽信发齿轮机械有限公司 Elasticity clamping grinding hole clamp of cylindrical straight-tooth dual gear
CN102248484A (en) * 2011-07-22 2011-11-23 天津市中马骏腾精密机械制造有限公司 Eccentric clamping fixture
CN202726731U (en) * 2012-07-23 2013-02-13 优德精密工业(昆山)有限公司 Precision clamp for positioning ball locks

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Address after: 215316, No. 3168, North Road, Yushan, Kunshan, Jiangsu, Suzhou

Applicant after: Jouder Precision Industry (Kunshan) Co., Ltd.

Address before: 215316, No. 3168, North Road, Yushan, Kunshan, Jiangsu, Suzhou

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Free format text: CORRECT: APPLICANT; FROM: JOUDER PRECISION INDUSTRIAL (KUNSHAN) CO., LTD. TO: JOUDER PREC INDUSTRY KUNSHAN CO., LTD.

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