CN102756331A - Precise ball lock positioning gripping head - Google Patents

Precise ball lock positioning gripping head Download PDF

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Publication number
CN102756331A
CN102756331A CN2012102557542A CN201210255754A CN102756331A CN 102756331 A CN102756331 A CN 102756331A CN 2012102557542 A CN2012102557542 A CN 2012102557542A CN 201210255754 A CN201210255754 A CN 201210255754A CN 102756331 A CN102756331 A CN 102756331A
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China
Prior art keywords
hole
wheel flange
screw
ball
ball stud
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CN2012102557542A
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CN102756331B (en
Inventor
杨天文
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JOUDER PRECISION INDUSTRIAL (KUNSHAN) Co Ltd
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JOUDER PRECISION INDUSTRIAL (KUNSHAN) Co Ltd
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Priority to CN201210255754.2A priority Critical patent/CN102756331B/en
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 the quick clamping localization tool of a kind of ball lock punch.
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: at first use ball locking bit tool to cut out a gulde edge at workpiece cutting edge place; Each plays height gage to re-use the clamping of punching pin former, through height gage with the gulde edge leveling; Adjust the processing of carrying out special-shaped cutting edge behind the center of workpiece then.In this processing mode, the process-cycle of single workpiece is 35 ~ 40min, and wherein the leveling of the clamping of the system of cutting of gulde edge, height gage, gulde edge, the time that adjustment spent of workpiece centre are about 8min.
The processing mode of another kind of special-shaped cutting edge ball lock punch is to adopt the processing of numerical control polygonal grinding machine: at first use surface grinding machine to cut out a gulde edge at workpiece cutting edge place; Grasp workpiece through scroll chuck or collet on the numerical control multiaspect grinding machine again, use amesdial centering gulde edge, adjustment workpiece centre; Carry out the processing of special-shaped cutting edge at last.In this processing mode, the process-cycle of single workpiece is about 16min, and wherein the centering of the system of cutting of gulde edge, gulde edge, the time that adjustment spent of workpiece centre are about 8min.
In the above-mentioned dual mode, the secondary process time has all reached 8min, especially in the numerical control polygonal grinding machine processing mode, has almost occupied half the process time, has caused great time waste.
Summary of the invention
Goal of the invention: in order to overcome the deficiency that exists in the prior art, the present invention provides a kind of accurate ball locking bit chuck, solves quick clamping, pinpoint problem in the batch machining process.
Technical scheme: for solving the problems of the technologies described above, the technical scheme that the present invention adopts 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 screw is coaxial to be fixed said base ring through being connected with wheel flange;
The central axis of wheel flange is provided with the clamping hole of the both ends of the surface that are communicated with wheel flange; The sidewall of wheel flange is provided with vertically towards clamping hole and is communicated with the stepped hole of clamping hole; The orifice end of said 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 the ball stud stop nut is fixed; The ball stud stop nut is installed in the screw thread place of stepped hole; Ball stud is installed in the straight hole place of stepped hole and spacing through reducing, and spring compression is between ball stud stop nut and ball stud; On the sidewall of wheel flange, also be provided with vertically towards clamping hole, and be communicated with the groove that adds the both ends of the surface of holding hole and wheel flange, the two side of groove is provided with relative counter sink, and the two side is through relative counter sink and the locking of wheel flange locking screw spare;
The central axis of base ring is 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; The sidewall of base ring is provided with vertically towards through hole and is communicated with the countersunk head screw of through hole, and spacer pin inserts in the through hole, and the spacer pin lock screw screws in the countersunk head screw and compresses spacer pin.
Said apparatus at first inserts workpiece in the clamping hole in use, and the insertion depth of workpiece can be adjusted through spacer pin, after the adjustment of spacer pin position is suitable, through the spacer pin lock screw it is pressed in the through hole, to axially positioning of workpiece; After the axial location of workpiece is accomplished, turning of work piece in clamping hole, when the lock of the ball on workpiece groove location was positioned at the stepped hole below, ball stud was under the effect of spring, and ball lock groove is withstood in its end, and the restriction workpiece is rotated further; Through wheel flange locking screw spare common two side is locked at last, realize the radial location to workpiece, accomplish all location of workpiece at this moment, and whole process is very simply with quick.
In said apparatus; The reducing of stepped hole is when being used to prevent that workpiece from not putting into clamping hole, and the phenomenon that ball stud drops in the stepped hole takes place, but reducing can not be too small; Otherwise the end of ball stud can not free in and out reducing, and influence is to the radial location of workpiece.The design of groove is in order to make clamping hole have certain stroke, can to become less severe or clamping work pieces on the wheel flange.The internal diameter of the through hole of design base ring is the effect of stepping down in order to play greater than the internal diameter of clamping hole, makes that the sidewall of the sidewall of workpiece and base ring through hole can not produce the power effect, influences positioning accuracy after the workpiece insertion.
Preferably, said base ring and wheel flange cooperate through concavo-convex ledge structure, guarantee that the cooperation between base ring and the wheel flange is stable, and be reliable.
Preferably, said wheel flange is divided into two sector regions, is designated as first sector region and second sector region respectively; The installing hole of said connection screw is distributed in first sector region, and said groove and counter sink are positioned at second sector region; On said base ring and the end face that wheel flange matches, the end face in the position of corresponding second sector region and second fan section exists steps down; Avoid wheel flange in the process that clamps and become less severe, base ring is to the influence at the movable position of wheel flange.
Preferably, through round-corner transition, be used for dispersive stress between said groove and the clamping hole, prevent the wheel flange fracture or workpiece is caused damage.
Preferably, the outer wall of said wheel flange is provided with the gulde edge of indication workpiece installation site, just can detect the direction and the position of workpiece like this through the position that detects gulde edge.
Preferably, said relative counter sink has two groups, through being arranged on the wheel flange surface and separating along the groove that it is radially offered, avoids interfering between the wheel flange locking screw spare between two groups of counter sinks, influences positioning accuracy.
Beneficial effect: accurate ball locking bit chuck provided by the invention, the clamping good rigidly can bear bigger cutting force; Clamping good concentricity (can remain in 0.005), perpendicularity good (can remain in 0.01), repetitive positioning accuracy is high; Owing to carry location structure, need aligning hardly, therefore can the secondary process time of workpiece processing be controlled in the 40s, improved operating efficiency greatly.
Description of drawings
Fig. 1 is a decomposition texture sketch map of the present invention;
Fig. 2 is an elevational cross-sectional view of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done explanation further.
As Fig. 1, shown in Figure 2 be a kind of accurate ball locking bit chuck; 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, said base ring 1 and wheel flange 8 through concavo-convex ledge structure cooperate, and through being connected screw 9 coaxial fixing.
The central axis of wheel flange 8 is provided with the clamping hole of the both ends of the surface that are communicated with wheel flange 8; The sidewall of wheel flange 8 is provided with vertically towards clamping hole and is communicated with the stepped hole of clamping hole; The orifice end of said 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 installed in the screw thread place of stepped hole; Ball stud 7 is installed in the straight hole place of stepped hole and spacing through reducing, and spring 6 is pressed between ball stud stop nut 5 and the ball stud 7; On the sidewall of wheel flange 8, also be provided with vertically towards clamping hole, and be communicated with the groove that adds the both ends of the surface of holding hole and wheel flange 8, the two side of groove is provided with relative counter sink, and the two side is through relative counter sink and 11 lockings of wheel flange locking screw spare.
The central axis of base ring 1 is 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; The sidewall of base ring 1 is provided with vertically towards through hole and is communicated with the countersunk head screw of through hole, and spacer pin 2 inserts in the through holes, and spacer pin lock screw 3 screws in the countersunk head screws and compresses spacer pin 2.
Said wheel flange 8 is divided into two sector regions, is designated as first sector region and second sector region respectively; The installing hole of said connection screw 9 is distributed in first sector region, and said groove and counter sink are positioned at second sector region; On said base ring 1 and the end face that wheel flange 8 matches, the end face in the position of corresponding second sector region and second fan section exists steps down.
Pass through round-corner transition between said groove and the clamping hole; The outer wall of said wheel flange 8 is provided with the gulde edge of indication workpiece installation site; Said relative counter sink has two groups, between two groups of counter sinks through being arranged on wheel flange 8 surface and separating along the groove that it is radially offered.
Earlier ball lock punch 10 is inserted in the clamping hole of wheel flange 8 during work, the degree of depth that ball lock punch 10 inserts can be through spacer pin 2 adjustment, the fixedly spacer pin 2 of spacer pin lock screw 3 of screwing after mixing up; Rotate ball lock punch 10 then; In the time of under the lock of the ball on the ball lock punch 10 groove turns to ball stud 7; Can hear " click clatter " one, ball stud 7 snaps in the ball lock groove (actual is that the bulb of ball stud 7 just is stuck on two inclines of ball lock groove) under the thrust of spring 6, realize the location; This moment, the position of ball lock groove was relevant with gulde edge on wheel flange 8 external diameters, so only need beat the orientation that the gulde edge of showing on the wheel flange 8 is just known ball lock punch 10; Through wheel flange locking screw spare 11 locking groove two sides, just can ball lock punch 10 be fixed at last.After machining, unclamp wheel flange locking screw spare 11, the pull-up ball stud is extracted screw 4, mentions ball stud 7, just can take off workpiece.
The precondition of using the clamping of this kind mode is that the external diameter of ball lock punch 10 need be unified in the 0.005mm; Otherwise the external diameter of workpiece is bigger to the concentricity influence of clamping; Fortunately the outside dimension of ball lock punch 10 standardization, seriation can realize with present board processing conditions.Be connected screw 9 for what prevent that maloperation from unscrewing base ring 1 and wheel flange 8 in addition, can in the connection screw hole, coat yellow paint, warn.
The above only is a preferred implementation of the present invention; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching, these improvement and retouching also should be regarded 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), said base ring (1) is coaxial fixing through being connected screw (9) with wheel flange (8);
The central axis of wheel flange (8) is provided with the clamping hole of the both ends of the surface that are communicated with wheel flange (8); The sidewall of wheel flange (8) is provided with vertically towards clamping hole and is communicated with the stepped hole of clamping hole; The orifice end of said 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 installed in the screw thread place of stepped hole; Ball stud (7) is installed in the straight hole place of stepped hole and spacing through reducing, and spring (6) is pressed between ball stud stop nut (5) and the ball stud (7); On the sidewall of wheel flange (8), also be provided with vertically towards clamping hole, and be communicated with the groove that adds the both ends of the surface of holding hole and wheel flange (8); The two side of groove is provided with relative counter sink, and the two side is through relative counter sink and wheel flange locking screw spare (11) locking;
The central axis of base ring (1) is 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; The sidewall of base ring (1) is provided with vertically towards through hole and is communicated with the countersunk head screw of through hole, and spacer pin (2) inserts in the through hole, and spacer pin lock screw (3) screws in the countersunk head screw and compresses spacer pin (2).
2. accurate ball locking bit chuck according to claim 1 is characterized in that: said base ring (1) and wheel flange (8) cooperate through concavo-convex ledge structure.
3. accurate ball locking bit chuck according to claim 1, it is characterized in that: said wheel flange (8) is divided into two sector regions, is designated as first sector region and second sector region respectively; The installing hole of said connection screw (9) is distributed in first sector region, and said groove and counter sink are positioned at second sector region; On said base ring (1) and the end face that wheel flange (8) matches, the end face in the position of corresponding second sector region and second fan section exists steps down.
4. accurate ball locking bit chuck according to claim 1 is characterized in that: pass through round-corner transition between said groove and the clamping hole.
5. accurate ball locking bit chuck according to claim 1 is characterized in that: the outer wall of said wheel flange (8) is provided with the gulde edge of indication workpiece installation site.
6. accurate ball locking bit chuck according to claim 1, it is characterized in that: said relative counter sink has two groups, between two groups of counter sinks through being arranged on wheel flange (8) surface and separating along the groove that it is radially offered.
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
CN201210255754.2A CN102756331B (en) 2012-07-23 2012-07-23 Precise ball lock positioning gripping head

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CN102756331A true CN102756331A (en) 2012-10-31
CN102756331B CN102756331B (en) 2014-08-13

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Cited By (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

Cited By (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

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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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