CN204912815U

CN204912815U - Tap holder

Info

Publication number: CN204912815U
Application number: CN201520542554.4U
Authority: CN
Inventors: 陈学标
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-07-24
Filing date: 2015-07-24
Publication date: 2015-12-30
Anticipated expiration: 2025-07-24

Abstract

The utility model discloses a tap holder, including clamping device, clamping device includes collet bodies, collet bodies's top is equipped with the tapering spindle, be equipped with the caudal peduncle on the tapering spindle, the caudal peduncle is taper fit and passes through the screw fixation with the tapering spindle. The utility model discloses a tap holder adopts the caudal peduncle structure of national standard specification to be connected with dismantling of clamping device, can satisfy the matching needs of various lathes, and the practicality is strong, and is compatible good, and market prospect is wide.

Description

A kind of tap holder

Technical field

The utility model relates to a kind of tap holder.

Background technology

Tap holder is internal thread machining jig.Existing tap holder, structure is simple, screw tap is when being jammed, firm not, used and easily produced idle running phenomenon for a long time, and, existing tap holder only can be used in common special purpose lathe, large-scale plant equipment can not be suitable for, make its poor compatibility, its maximum work cannot be played and use.

Summary of the invention

It is simple that the utility model will solve existing tap holder structure, and screw tap is fixed insecure, and the technical problem of poor compatibility.

The technical scheme in the invention for solving the above technical problem is:

The utility model discloses a kind of tap holder, comprises clamping device, and described clamping device comprises collet body, and the top of described collet body is provided with diminished shaft, and described diminished shaft is provided with caudal peduncle, and described caudal peduncle and diminished shaft are taper fit and are screwed.

Described caudal peduncle comprises taper shank, draw-in groove boss, manipulator draw-in groove and is connected keyway, and the end face of described taper shank is along axis to having counterbore and screw vent, and described draw-in groove boss is in the bottom surface of taper shank, and manipulator draw-in groove is in the middle part of draw-in groove boss also ringwise.

Described collet body is provided with adjusting device and locking device, described adjusting device comprises the leading truck on the conical bore be located at bottom collet body, be screwed onto collet body bottom outer wall and leading truck and collet body can be made to realize the nut of axial relative movement, and three bottoms be arranged at leading truck radial groove in and jaw on the hole wall of conical bore that reclines of sidewall, described three jaws are by annular resilient collar phase consecutive; Described locking device comprises radial direction and is inserted in collet body and symmetrical left fixture block and right fixture block, one mates with left fixture block, right fixture block the double threaded screw be spirally connected respectively with positive and negative screw thread, and in the groove that can be against left and right fixture block side respectively through collet body and the screw be locked, described left and right fixture block is off-centre operation nut.

Described collet body is also provided with the peep hole run through wherein, center line and the center line of left and right fixture block of described peep hole are that normal direction is vertical, by peep hole, can look at the position between left and right fixture block straight.

The technique effect that the utility model can reach is:

Compared with prior art, tap holder of the present utility model, by the nut of rotation adjustment device, distance between adjustment jaw, the screw tap of different size can be applicable to, and, can be clamped the afterbody of screw tap by the left and right fixture block of locking device, ensure screw tap stable and with collet body axis collinear.Because, tap holder Stability Analysis of Structures of the present utility model, firm grip, practical.

Compared with prior art, tap holder of the present utility model, is connected and fixed caudal peduncle at the top of collet body, and caudal peduncle is GB specification, all mates with various types of lathe, machining center, compatible strong, can meet the wider market demand.

Accompanying drawing explanation

Fig. 1 is the stereogram of the utility model tap holder;

Fig. 2 is the three-dimensional exploded view of the utility model tap holder.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:

Refer to Fig. 1 to Fig. 2, the utility model provides a kind of tap holder, comprise clamping device 1, described clamping device 1 comprises collet body 11, the top of described collet body 11 is provided with diminished shaft 12, described diminished shaft 12 is provided with caudal peduncle 2, and described caudal peduncle 2 and diminished shaft 12 are taper fit and are fixed by screw 3.

Caudal peduncle 2 and the collet body 11 of tap holder of the present utility model are split-type design, when reality uses, arbitrarily can change the GB caudal peduncle of different size, meet the user demand of the lathe of different model on collet body 11.

Described caudal peduncle 2 comprises taper shank 21, draw-in groove boss 22, manipulator draw-in groove 23 and is connected keyway 24, the end face of described taper shank 21 is along axis to having counterbore and screw vent, described draw-in groove boss 22 is in the bottom surface of taper shank 21, and manipulator draw-in groove 23 is in the middle part of draw-in groove boss 22 also ringwise.

Described collet body 11 is provided with adjusting device and locking device, described adjusting device comprises the leading truck 14 on the conical bore 13 be located at bottom collet body 11, be screwed onto collet body 11 bottom outer wall and leading truck 14 and collet body 11 can be made to realize the nut 15 of axial relative movement, and three bottoms be arranged at leading truck 14 radial groove 16 in and jaw 17 on the hole wall of conical bore 13 that reclines of sidewall, described three jaws 17 are by annular resilient collar 18 phase consecutive; Described locking device comprises radial direction and is inserted in collet body 11 and symmetrical left fixture block 101 and right fixture block 102, one mates with left fixture block 101, right fixture block 102 double threaded screw 103 be spirally connected respectively with positive and negative screw thread, and in the groove 104 that can be against left and right fixture block 101,102 side through collet body 11 respectively and the screw 105 be locked, described left and right fixture block 101,102 is off-centre operation nut.

Described collet body 11 is also provided with the peep hole 1001 run through wherein, the center line of described peep hole 1001 is that normal direction is vertical with the center line of left and right fixture block 101,102, by peep hole 1001, can look at the position between left and right fixture block 101,102 straight.

In use, the caudal peduncle 2 of tap holder is inserted on the main shaft of lathe, then, rotating nut 15, the distance between jaw 17 is made to become large, concrete size is as the criterion with the data of tap diameter, simultaneously, rotate double threaded screw 103, make a left side, right fixture block 101, distance between 102 becomes large, the width data of concrete size one screw tap afterbody is as the criterion, then, screw tap is inserted the through hole at nut 15 center, through the center of three jaws 17, finally reach left, right fixture block 101, between 102, and screw tap afterbody is in the below of double threaded screw 103, rotating nut 15, three jaws 17 are made to clamp screw tap, afterwards, rotate double threaded screw 103, the state of screw tap is observed by peep hole 1001, make the left side on double threaded screw 103, right fixture block 101, 102 four directions of clamping screw tap shank gently, then, rotating nut 15, clip screw tap and use spanner clamping, finally, with die nut locking double threaded screw 103, make a left side, right fixture block 101, four directions on 102 clamping tap holders.During dismounting, only need counter-rotating double threaded screw 103 and nut 15, left and right fixture block 101,102 unclamps screw tap afterbody, and three jaws 17 are due to the effect of elastic ring 81, radially drive jaw 17, make the distance between three jaws 17 become large and unclamp screw tap.

Above a kind of tap holder that the utility model embodiment provides is described in detail, apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment is just for helping to understand the technical scheme that the utility model discloses; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.

Claims

1. a tap holder, is characterized in that: comprise clamping device, and described clamping device comprises collet body, and the top of described collet body is provided with diminished shaft, and described diminished shaft is provided with caudal peduncle, and described caudal peduncle and diminished shaft are taper fit and are screwed.

2. tap holder according to claim 1, it is characterized in that: described caudal peduncle comprises taper shank, draw-in groove boss, manipulator draw-in groove and is connected keyway, the end face of described taper shank is along axis to having counterbore and screw vent, described draw-in groove boss is in the bottom surface of taper shank, and manipulator draw-in groove is in the middle part of draw-in groove boss also ringwise.

3. tap holder according to claim 1, it is characterized in that: described collet body is provided with adjusting device and locking device, described adjusting device comprises the leading truck on the conical bore be located at bottom collet body, be screwed onto collet body bottom outer wall and leading truck and collet body can be made to realize the nut of axial relative movement, and three bottoms be arranged at leading truck radial groove in and jaw on the hole wall of conical bore that reclines of sidewall, described three jaws are by annular resilient collar phase consecutive; Described locking device comprises radial direction and is inserted in collet body and symmetrical left fixture block and right fixture block, one mates with left fixture block, right fixture block the double threaded screw be spirally connected respectively with positive and negative screw thread, and in the groove that can be against left and right fixture block side respectively through collet body and the screw be locked, described left and right fixture block is off-centre operation nut.

4. tap holder according to claim 1, it is characterized in that: described collet body is also provided with the peep hole run through wherein, center line and the center line of left and right fixture block of described peep hole are that normal direction is vertical, by peep hole, can look at the position between left and right fixture block straight.