CN207509018U - The angular positioning device of three pin shaft forks - Google Patents

The angular positioning device of three pin shaft forks Download PDF

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Publication number
CN207509018U
CN207509018U CN201721632058.3U CN201721632058U CN207509018U CN 207509018 U CN207509018 U CN 207509018U CN 201721632058 U CN201721632058 U CN 201721632058U CN 207509018 U CN207509018 U CN 207509018U
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CN
China
Prior art keywords
headstock
ontology
pin shaft
positioning device
cover board
Prior art date
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Active
Application number
CN201721632058.3U
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Chinese (zh)
Inventor
钟志维
刘建华
詹书进
喻擎天
朱华春
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.)
Shanghai GKN Huayu Driveline Systems Co Ltd
Original Assignee
Shanghai GKN Huayu Driveline Systems Co Ltd
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Publication date
Application filed by Shanghai GKN Huayu Driveline Systems Co Ltd filed Critical Shanghai GKN Huayu Driveline Systems Co Ltd
Priority to CN201721632058.3U priority Critical patent/CN207509018U/en
Application granted granted Critical
Publication of CN207509018U publication Critical patent/CN207509018U/en
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Abstract

The utility model provides a kind of three pin shaft forks angular positioning device, and including matrix, the centre position of matrix is provided in the axial direction with through-hole, and bolt is equipped in through-hole;Matrix includes ontology and the positioning column being located on ontology, is arranged with limiting plate, cover board, headstock and spring successively from top to bottom on positioning column, the lower end of spring is abutted with ontology, and upper end is abutted with headstock;The top of headstock is connected to circumferentially arranged with three equally distributed locating pieces, cover board on locating piece, and ball-and-socket, steel ball built in each ball-and-socket are equipped between cover board, headstock, adjacent two locating pieces;Also block flexible baffle ring in position on ontology close to top.The angular positioning device of the utility model its be purely mechanical structure, it is simple in structure, and since steel ball has degree of freedom in circumferencial direction in itself, steel ball is rotated to yoke alley inner cavity since friction is also corresponding when rolling clamp rotates, to yoke without apparent impact force, so its positioning is assisted without hold-down devices, positioning stablity is reliable.

Description

The angular positioning device of three pin shaft forks
Technical field
The utility model is related to three pin shaft fork manufacture fields, angularly fixed more particularly to a kind of three pin shaft forks for grinding machine Position device.
Background technology
Truck drive shaft is an important part of automobile, and three pin shaft forks of wherein transmission shaft are connected with gearbox.Three pins The grinding of yoke needs efficiently to automate the stability that processing ensures part grinding as critical process.Grinding Before be necessary to ensure that workpiece is corrected the yoke of different conditions to same direction by a device, often the device is referred to as we Angular positioning device.Its traditional angular positioning fixture is generally mainly referred to by positioning, lock-screw, positioning plate form.Positioning refers to Size and distribution are using profiling alley inner cavity principle, need to be according to three pin shaft fork alley nodal patterns during thread-changing, and it is corresponding angular fixed to remodel Position fixture, shortcoming are that every nodal pattern must be equipped with a kind of angular positioning fixture, and need hold-down devices auxiliary positioning, positioning impact Power is big.
Application No. is a kind of three pin shaft forks are disclosed in the Chinese invention patent application specification of CN201710520366.5 The angular positioning device of production, including positioning fixture, the peripheral surface of positioning fixture is circumferentially distributed rotation direction guide rail, positioning fixture Bottom end be connected with connector sleeve;Guide rod, the top of guide rod are stretched into connector sleeve and are fixedly linked with connector sleeve, guide rod Peripheral surface is equipped with spiral guide slot, and the rotation direction of spiral guide slot is identical with the rotation direction of rotation direction guide rail;Supporting rack, supporting rack have top Portion's axis hole and bottom axis hole, connector sleeve are threaded through after being connected with guide rod in the axis hole of top, and bottom axis is stretched into the bottom end of guide rod In hole, and the epimere inner wall of top axis hole has spin, and the hypomere inner wall of top axis hole has ball, and spin and ball make positioning Fixture and guide rod are rotatable and can be along the axial-movement of top axis hole;Resetting spring is worn on the guide bar.Above-mentioned three pin Although the angular positioning device of yoke production can be completed angularly to position, positioning accuracy request is higher, is applicable in grinding machine Property is poor.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of angular positioning device of three pin shaft forks, to overcome existing skill The drawbacks described above of art.
To achieve the above object, the utility model provides a kind of three pin shaft forks angular positioning device, including matrix, the base The centre position of body is provided in the axial direction with through-hole, and bolt is equipped in the through-hole;Described matrix includes ontology and is located at described Positioning column on ontology is arranged with limiting plate, cover board, headstock and spring, the spring on the positioning column successively from top to bottom Lower end abutted with the ontology, upper end is abutted with the headstock;The top of the headstock is uniformly distributed circumferentially arranged with three Locating piece, the cover board is connected on the locating piece, and ball is equipped between the cover board, headstock, adjacent two locating pieces Nest, each ball-and-socket are built-in with rotatable steel ball;Also block flexible baffle ring, the elasticity in position on the ontology close to top Baffle ring is located at the top of the limiting plate.
Preferably, by stage portion transition, the lower end of the spring is set in described for the ontology and the positioning column In rank portion.
Preferably, the cover board is connected by screw on the locating piece.
Preferably, the position being located on the top surface of the headstock in the ball-and-socket is equipped with locating slot, the shape of the locating slot Shape is matched with the arc of the steel ball peripheral surface, and the bottom of the steel ball is located in the locating slot.
Preferably, embedded groove is provided in the axial direction on the outer wall of the ontology, locking member, the head are embedded in embedded groove Position corresponding with the locking member offers fixing groove on the inner wall of seat, and the embedded groove is stretched out simultaneously in the side of the locking member In the fixing groove.
As described above, the utility model is related to the angular positioning device of three pin shaft forks, have the advantages that:This practicality It is purely mechanical structure to novel angular positioning device, simple in structure, and since steel ball has freely in itself in circumferencial direction Degree, steel ball is rotated to yoke alley inner cavity since friction is also corresponding when rolling clamp rotates, to yoke without apparent impact force, so It is positioned assists without hold-down devices, and positioning stablity is reliable.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the utility model.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the status diagram that the utility model is located in yoke.
Fig. 4 is the structure diagram of yoke.
Component label instructions
1 matrix
11 through-holes
12 ontologies
121 stage portions
13 positioning columns
14 locking members
2 bolts
3 limiting plates
4 cover boards
41 screws
5 headstocks
51 locating pieces
52 ball-and-sockets
53 locating slots
54 fixing grooves
6 springs
7 steel balls
8 circlips
9 yoke inner cavities
Specific embodiment
Illustrate the embodiment of the utility model by particular specific embodiment below, those skilled in the art can be by this Content disclosed by specification understands other advantages and effect of the utility model easily.
It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only specification to be coordinated to be taken off The content shown so that those skilled in the art understands and reads, is not limited to the enforceable restriction item of the utility model Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing Under the effect of the utility model can be generated and the purpose that can reach, should all still it fall in the revealed technology of the utility model In the range of appearance can cover.Meanwhile cited such as " on ", " under " in this specification, "left", "right", " centre " term, It is merely convenient to understanding rather than to limit the enforceable range of the utility model, the change of relativeness or tune for narration It is whole, in the case where changing technology contents without essence, when being also considered as the enforceable scope of the utility model.
As shown in Figures 1 to 4, the utility model provides a kind of three pin shaft forks angular positioning device, described including matrix 1 The centre position of matrix 1 is provided in the axial direction with through-hole 11, and bolt 2 is equipped in the through-hole 11, and the bolt head of bolt 2 is exposed at Outside matrix 1, screw rod is stretched out from through-hole 11, for connecting tooling.As depicted in figs. 1 and 2, described matrix 1 includes 12 He of ontology The positioning column 13 being located on the ontology 12, the ontology 12 and the integrated molding of the positioning column 13 are made, the positioning column 13 On be arranged with limiting plate 3, cover board 4, headstock 5 and spring 6 successively from top to bottom, the lower end of the spring 6 is supported with the ontology 12 It connects, upper end is abutted with the headstock 5, and when the utility model stretches into yoke inner cavity 9, the headstock 5 is made due to the elastic force of spring 6 With that will not generate apparent impact force to yoke, the limiting plate 3 is used to prevent the cover board 4 from deviating from the ontology 12.The head The top of seat 5 is circumferentially arranged with three equally distributed locating pieces 51, the angle all same between adjacent positioned block 51, the lid Plate 4 is connected on the locating piece 51, ball-and-socket 52 is equipped between the cover board 4, headstock 5, adjacent two locating pieces 51, each Ball-and-socket 52 is built-in with rotatable steel ball 7, and steel ball 7 sets three altogether, corresponds to three ball-and-sockets 52.Close to top on the ontology 12 Flexible baffle ring 8 is also blocked in the position at end, and the circlip 8 is located at the top of the limiting plate 3, avoids the limiting plate 3 de- Go out the ontology 12.
As depicted in figs. 1 and 2, it is preferable that the ontology 12 and the positioning column 13 are described by 121 transition of stage portion The lower end of spring 6 is set in the stage portion 121, further fixes the position of the spring 6.Preferably, the cover board 4 is logical It crosses screw 41 to be connected on the locating piece 51, the screw 41, which amounts to, sets three, this is corresponded on each locating piece 51 Screw 41.Preferably, the position being located on the top surface of the headstock 5 in the ball-and-socket 52 is equipped with locating slot 53, the locating slot 53 shape is matched with the arc of 7 peripheral surface of steel ball, and the bottom of the steel ball 7 is located in the locating slot 53, described fixed Position slot 53 and the cooperation of the cover board 4 make the steel ball 7 more reliably be fixed in the ball-and-socket 52.Preferably, the ontology 12 Outer wall on be provided in the axial direction with embedded groove, be embedded with locking member 14 in embedded groove, on the inner wall of the headstock 5 with the locking 14 corresponding position of part offers fixing groove 54, and the embedded groove is stretched out and positioned at the fixing groove in the side of the locking member 14 In 54, when avoiding the utility model from rotating, the headstock 5 follows rotation.
As shown in figure 4, three steel balls 7 formed outer circle C need between alley inner cavity maximum gauge A and minimum diameter B, according to A the and B values of different nodal patterns determine that the steel ball of the generally applicable multiple nodal patterns of covering forms circular diameter C, and then determine steel ball size.It changes During line, according to three pin shaft fork nodal patterns, corresponding universal angular positioning fixture of remodeling.When three pin shaft fork of manipulator clamping is to predetermined Behind position, novel generally applicable alley positioning fixture rotation rises to and alley lumen contact, then manipulator release, rotary cylinder General alley positioning fixture is driven to rotate, until steel ball 7 contacts (referring to Fig. 3) with alley inner cavity major diameter with path transition corner, Yoke is driven to rotate together, three pin shaft fork alleys is completed and angularly positions, ensures the normal automated feeding processing of grinding machine.
Relative to traditional angular positioning fixture, the utility model only needs three kinds of specifications just to cover current 18 kinds of sections of yoke Type, fixture inventory have saved the time of remodeling while reduction.There is degree of freedom, rotation in circumferencial direction in itself additionally, due to steel ball Steel ball is rotated to yoke alley inner cavity since friction is also corresponding when fixture rotates, to yoke without apparent impact force, so it is positioned It is assisted without hold-down devices, positioning stablity is reliable.
In conclusion the utility model effectively overcomes various shortcoming of the prior art and has high industrial exploitation value Value.
The above embodiments are only illustrative of the principle and efficacy of the utility model, new not for this practicality is limited Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model All equivalent modifications completed under refreshing and technological thought or change, should be covered by the claim of the utility model.

Claims (5)

1. the angular positioning device of a kind of three pin shaft forks, which is characterized in that including matrix (1), the centre position edge of described matrix (1) Through-hole (11) is axially offered, bolt (2) is equipped in the through-hole (11);Described matrix (1) is including ontology (12) and is located at Positioning column (13) on the ontology (12) is arranged with limiting plate (3), cover board on the positioning column (13) successively from top to bottom (4), headstock (5) and spring (6), the lower end of the spring (6) are abutted with the ontology (12), and upper end is supported with the headstock (5) It connects;Circumferentially arranged with three equally distributed locating pieces (51), the cover board (4) is connected to described at the top of the headstock (5) On locating piece (51), ball-and-socket (52), Mei Geqiu are equipped between the cover board (4), headstock (5), adjacent two locating pieces (51) Nest (52) is built-in with rotatable steel ball (7);Also block flexible baffle ring (8), institute in position on the ontology (12) close to top Circlip (8) is stated positioned at the top of the limiting plate (3).
2. the angular positioning device of three pin shaft forks according to claim 1, it is characterised in that:The ontology (12) and described fixed By stage portion (121) transition, the lower end of the spring (6) is set in the stage portion (121) position column (13).
3. the angular positioning device of three pin shaft forks according to claim 1, it is characterised in that:The cover board (4) passes through screw (41) it is connected on the locating piece (51).
4. the angular positioning device of three pin shaft forks according to claim 1, it is characterised in that:On the top surface of the headstock (5) Position in the ball-and-socket (52) is equipped with locating slot (53), shape and the steel ball (7) periphery of the locating slot (53) The arc matching in face, the bottom of the steel ball (7) are located in the locating slot (53).
5. the angular positioning device of three pin shaft forks according to claim 1, it is characterised in that:On the outer wall of the ontology (12) Be provided in the axial direction with embedded groove, be embedded with locking member (14) in embedded groove, on the inner wall of the headstock (5) with the locking member (14) corresponding position offers fixing groove (54), and the embedded groove is stretched out and positioned at described solid in the side of the locking member (14) Determine in slot (54).
CN201721632058.3U 2017-11-29 2017-11-29 The angular positioning device of three pin shaft forks Active CN207509018U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721632058.3U CN207509018U (en) 2017-11-29 2017-11-29 The angular positioning device of three pin shaft forks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721632058.3U CN207509018U (en) 2017-11-29 2017-11-29 The angular positioning device of three pin shaft forks

Publications (1)

Publication Number Publication Date
CN207509018U true CN207509018U (en) 2018-06-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721632058.3U Active CN207509018U (en) 2017-11-29 2017-11-29 The angular positioning device of three pin shaft forks

Country Status (1)

Country Link
CN (1) CN207509018U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113618567A (en) * 2021-10-14 2021-11-09 徐州顺源木业有限公司 Automatic grinding processing equipment for arc-shaped backrest of wooden chair

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113618567A (en) * 2021-10-14 2021-11-09 徐州顺源木业有限公司 Automatic grinding processing equipment for arc-shaped backrest of wooden chair
CN113618567B (en) * 2021-10-14 2022-02-08 徐州顺源木业有限公司 Automatic grinding processing equipment for arc-shaped backrest of wooden chair

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