CN203003509U - Fixture for processing pin holes of special shifting forks - Google Patents

Fixture for processing pin holes of special shifting forks Download PDF

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Publication number
CN203003509U
CN203003509U CN 201220640516 CN201220640516U CN203003509U CN 203003509 U CN203003509 U CN 203003509U CN 201220640516 CN201220640516 CN 201220640516 CN 201220640516 U CN201220640516 U CN 201220640516U CN 203003509 U CN203003509 U CN 203003509U
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China
Prior art keywords
plate
fixture
hole
positioning
double
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Active
Application number
CN 201220640516
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Chinese (zh)
Inventor
廖小军
徐驭航
路昊
陆勇
熊宇明
杨建�
张超
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.)
SOUTHWEST COMPUTER CO Ltd
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SOUTHWEST COMPUTER CO Ltd
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Priority to CN 201220640516 priority Critical patent/CN203003509U/en
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Abstract

The utility model relates to a fixture for processing pin holes of special shifting forks. The fixture comprises a positioning plate, a positioning block, a positioning mandrel and a plug, wherein the positioning plate is attached to a disc chuck on a lathe, and is connected and fastened through a first bolt; the fixture also comprises a first stud, an upper pressing plate, a strut and an eccentric screw; the first stud penetrates through a notch on the upper pressing plate and the positioning block and is fixedly connected with the positioning plate; the fixture also comprises a second stud and a lower pressing plate; the second stud is positioned below the positioning mandrel, penetrates through a hole on the lower pressing plate and is fixedly connected with the positioning plate; one end of the strut is fixedly connected with the positioning plate, and the other end of the strut is contacted with the upper pressing plate; and the eccentric screw is connected with a positioning hole on the positioning mandrel and is positioned between the first stud and the second stud. The fixture can position and clamp the special shifting forks, the pin holes on the special shifting forks are conveniently processed on the lathe, and the accuracy of the pin holes can be guaranteed.

Description

A kind of fixture for processing profiled shift fork pin-and-hole
Technical field
The utility model relates to workpiece machined frock, is specifically related to a kind of fixture for processing profiled shift fork pin-and-hole.
Background technology
Be provided with pin-and-hole on the disengaging yoke of automotive transmission, the machining accuracy of pin-and-hole is H7.Because disengaging yoke is abnormity component,
After carburizing and quenching, hardness is very high, and the pin-and-hole diameter only has several millimeter large, and special-shaped disengaging yoke is when machine tooling, the location, clamps more difficultly, is difficult to guarantee the machining accuracy of pin-and-hole.Therefore, need to design and produce in addition fixture, be used for pin-and-hole on the disengaging yoke of processing automobile speed changer.
Summary of the invention
The purpose of this utility model is to provide a kind of fixture for processing profiled shift fork pin-and-hole, and it can be located special-shaped shift fork, clamp, and is convenient to the pin-and-hole on processing profiled shift fork on lathe, and can guarantees dimension precision between the holes and the aperture precision of pin-and-hole.
A kind of fixture for processing profiled shift fork pin-and-hole described in the utility model, the latch that comprises location-plate, is fixed on the locating piece of location-plate one upper lateral part, is fixedly connected on the positioning core axle in location-plate one side centre and the second nut that coordinates with it, coordinates with locating hole on positioning core axle by the second screw by the first screw and alignment pin, the opposite side of described location-plate and the floral disc on lathe are close to, and fastening by the first bolt connection, it is characterized in that:
Also comprise the first double-screw bolt and top board, the notch that described the first double-screw bolt passes the top board top is fixedly connected with described location-plate with locating piece;
Also comprise the second double-screw bolt and lower platen, described the second double-screw bolt is positioned at the below of positioning core axle, and the hole that described the second double-screw bolt passes on lower platen is fixedly connected with described location-plate;
Also comprise a pillar, an end of this pillar is fixedly connected with described location-plate, and the other end of this pillar contacts with described top board;
Also comprise an eccentric screw, this eccentric screw is connected with locating hole on described positioning core axle and between described the first double-screw bolt and described the second double-screw bolt.Eccentric screw is used for limiting processed workpiece movable.
Described a kind of fixture for processing profiled shift fork pin-and-hole also comprises the balancing weight that is fixedly connected on described floral disc edge by two the 3rd screws.
The beneficial effects of the utility model: owing to taking technique scheme, can will need the special-shaped shift fork of pin hole processing to locate and clamp, realize the pin-and-hole on processing profiled shift fork on lathe, guarantee dimension precision between the holes and the aperture precision of pin-and-hole.
Description of drawings
Fig. 1 is structural representation of the present utility model (clamping has the disengaging yoke on processed workpiece-automotive transmission);
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation of the disengaging yoke on processed workpiece-automotive transmission;
Fig. 4 be Fig. 3 left view (partial sectional view).
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Referring to a kind of fixture for processing profiled shift fork pin-and-hole illustrated in figures 1 and 2, the latch 13 that comprises location-plate 1, is fixed on the locating piece 6 of location-plate 1 one upper lateral parts, is fixedly connected on the positioning core axle 12 in location-plate 1 one side centres and the second nut 14 that coordinates with it, coordinates with locating hole on positioning core axle by the second screw 11 by the first screw 7 and alignment pin 8, opposite side and the floral disc on lathe 5 of described location-plate 1 are close to, and connect fastening by the first bolt 2; Also comprise the first double-screw bolt 9 and top board 4, the notch that described the first double-screw bolt passes the top board top is fixedly connected with described location-plate 1 with locating piece 6; Also comprise the second double-screw bolt 15 and lower platen 20, described the second double-screw bolt 15 is positioned at the below of positioning core axle 12, and the hole that described the second double-screw bolt passes on lower platen is fixedly connected with described location-plate 1; Also comprise a pillar 17, an end of this pillar is fixedly connected with described location-plate 1, and the other end of this pillar contacts with described top board 4; Also comprise an eccentric screw 3, this eccentric screw is connected with locating hole on described positioning core axle 12 and between described the first double-screw bolt 9 and described the second double-screw bolt 15.Also comprise the balancing weight 18 that is fixedly connected on described floral disc 5 edges by two the 3rd screws 19.
Add man-hour, disengaging yoke on processed workpiece 21(automotive transmission) with locating piece 6 location, and with latch 13, workpiece 21 is located by the locating hole of positioning core axle 12, first tighten the first nut 10 on the first double-screw bolt 9, compress processed workpiece 21 by top board 4, with 14 supplemental support of the second nut, workpiece 21 is located again, and tighten the 3rd nut 16 on the second double-screw bolt 15, compress processed workpiece 21 by lower platen 20, with eccentric nut 3, workpiece 21 is clamped again, transfer to latch 13, the pin-and-hole on just can processing work.This fixture is arranged on engine lathe, and the workpiece 21 of processing is located by positioning core axle 12, and lock with the second nut 14, thus pin hole processing 22, and dimension precision between the holes and the aperture precision of assurance pin-and-hole.

Claims (2)

1. fixture that is used for processing profiled shift fork pin-and-hole, the latch (13) that comprises location-plate (1), is fixed on the locating piece (6) of location-plate (1) one upper lateral part, is fixedly connected on the positioning core axle (12) in location-plate (1) one side centre and the first nut (14) that coordinates with it, coordinates with locating hole on positioning core axle by the second screw (11) by the first screw (7) and alignment pin (8), the opposite side of described location-plate (1) and the floral disc on lathe (5) are close to, and fastening by the first bolt (2) connection, it is characterized in that:
Also comprise the first double-screw bolt (9) and top board (4), the notch that described the first double-screw bolt passes the top board top is fixedly connected with described location-plate (1) with locating piece (6);
Also comprise the second double-screw bolt (15) and lower platen (20), described the second double-screw bolt (15) is positioned at the below of positioning core axle (12), and the hole that described the second double-screw bolt passes on lower platen is fixedly connected with described location-plate (1);
Also comprise a pillar (17), an end of this pillar is fixedly connected with described location-plate (1), and the other end of this pillar contacts with described top board (4);
Also comprise an eccentric screw (3), this eccentric screw is connected and is positioned between described the first double-screw bolt (9) and described the second double-screw bolt (15) with locating hole on described positioning core axle (12).
2. described a kind of fixture for processing profiled shift fork pin-and-hole according to claim 1, is characterized in that: also comprise the balancing weight (18) that is fixedly connected on described floral disc (5) edge by two the 3rd screws (19).
CN 201220640516 2012-11-28 2012-11-28 Fixture for processing pin holes of special shifting forks Active CN203003509U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220640516 CN203003509U (en) 2012-11-28 2012-11-28 Fixture for processing pin holes of special shifting forks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220640516 CN203003509U (en) 2012-11-28 2012-11-28 Fixture for processing pin holes of special shifting forks

Publications (1)

Publication Number Publication Date
CN203003509U true CN203003509U (en) 2013-06-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220640516 Active CN203003509U (en) 2012-11-28 2012-11-28 Fixture for processing pin holes of special shifting forks

Country Status (1)

Country Link
CN (1) CN203003509U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104097082A (en) * 2014-07-14 2014-10-15 苏州金牛精密机械有限公司 Shifting fork drilling fixture
CN104476241A (en) * 2014-10-28 2015-04-01 芜湖赛德交通设备有限公司 Shifting fork miller jig
CN106624903A (en) * 2017-02-21 2017-05-10 浙江大学城市学院 Special fixture for processing shift-fork holes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104097082A (en) * 2014-07-14 2014-10-15 苏州金牛精密机械有限公司 Shifting fork drilling fixture
CN104476241A (en) * 2014-10-28 2015-04-01 芜湖赛德交通设备有限公司 Shifting fork miller jig
CN106624903A (en) * 2017-02-21 2017-05-10 浙江大学城市学院 Special fixture for processing shift-fork holes

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