CN2491169Y

CN2491169Y - Capstan of threading machine with automatic tool withdrawal function

Info

Publication number: CN2491169Y
Application number: CN 01245256
Authority: CN
Inventors: 相浦英征
Original assignee: LIKESHI ELECTROMECHANICAL INDUSTRY Co Ltd SUZHOU
Current assignee: LIKESHI ELECTROMECHANICAL INDUSTRY Co Ltd SUZHOU
Priority date: 2001-08-06
Filing date: 2001-08-06
Publication date: 2002-05-15
Anticipated expiration: 2011-08-06

Abstract

A capstan of threading machine with automatic tool withdrawal function comprises a hollow capstan principal body [3], a guide disk [9] and a capstan principal body back cover [12], wherein a radial screw die groove is arranged on the capstan principal body [3]; a screw die [2] capable of sliding in radial direction is arranged in the radial screw die groove; and eccentric lug boss [1] is arranged on the guide disk [9]; a tool withdrawing rod [4] is pivoted on the capstan principal body [3]; a locking block [10] is connected with the tool withdrawing rod [4]; an elastic slider [11] moving along circumferential direction is in slide connection with the capstan principal body [3]; a locking groove is arranged on the slider [11]; the slider [11] is connected with the guide disk [9] through a positioning lug [7]. The utility model can withdraw tool automatically when a workpiece is processed to the set thread length, and cannot bump the processed pipe threads.

Description

The capstan winch with automatic withdrawal function of die head threading machine

The utility model relates to a kind of die head threading machine that tubing or bar surface is carried out screw thread processing.

In the prior art, the capstan winch of die head threading machine comprise hollow the capstan winch body, with described capstan winch body rotate the positioning disk that is connected, fixedly connected with the capstan winch body and be positioned at the capstan winch body bonnet at its back, on described capstan winch body, be provided with screw die groove radially, be provided with the screw die that can radially slide in the described screw die groove, described positioning disk is provided with eccentric boss, and the gathering sill on described eccentric boss and the screw die is slidingly connected; For obtaining specified reach, operating personnel's manual operation capstan winch, make screw die withdrawing wherein, yet this method needs operating personnel to monitor on the die head threading machine side before fulfiling assignment always, if the stretching degree of screw die is little during manual withdrawing, the outer surface of the gas thread of then may damaging during the screw die withdrawing.Consistent being difficult to of length that will guarantee the screw thread of a collection of pipe to be processed in addition controlled, and needs the very skilled operative skill of operating personnel.

It is a kind of after mantle fiber finishes that the purpose of this utility model is to provide, and makes the capstan winch of die head threading machine of screw die automatic withdrawal.

The technical solution of the utility model is: a kind of capstan winch with automatic withdrawal function of die head threading machine, comprise hollow the capstan winch body, with described capstan winch body rotate the positioning disk that is connected, fixedly connected with the capstan winch body and be positioned at the capstan winch body bonnet at its back, on described capstan winch body, be provided with screw die groove radially, be provided with the screw die that can radially slide in the described screw die groove, described positioning disk is provided with eccentric boss, and the gathering sill on described eccentric boss and the screw die is slidingly connected; Described capstan winch body head lamp brush guard pivot is connected with the withdrawing bar, the hollow bulb of capstan winch body is stretched in the bottom of described withdrawing bar, be connected with on the described withdrawing bar to the axially extended clamping block in the inside of capstan winch body, slidely connect movable sliding block along the circumferential direction on the described capstan winch body, have lock slots on this slide block, under lock-out state, described clamping block is inserted in the lock slots on the described slide block; Under released state, described clamping block breaks away from the lock slots on the described slide block; Described slide block is connected with positioning disk by the location lug.

The utility model compared with prior art has following advantage:

In that being carried out screw thread, pipe adds man-hour, constantly move to withdrawing bar direction the end of pipe, after tube end contacts the withdrawing bar, clamping block on the withdrawing bar breaks away from the lock slots on the slide block, then under the effect of spring, slide block drives positioning disk and along the circumferential direction moves, making eccentric boss drive the screw die footpath outwards moves, screw die withdrawing then, the action of this automatic withdrawal is to control according to the processing length of the screw thread of pipe, so the length precise control, moving radially apart from the stroke that depends on slide block during the screw die withdrawing, the trip is set, so screw die can not run on the manufactured screw thread.

The utility model will be further described below in conjunction with drawings and Examples:

Accompanying drawing 1 is a front view of the present utility model;

Accompanying drawing 2 is the B-B direction cutaway view of accompanying drawing 1;

Accompanying drawing 3 is a rearview of the present utility model;

Accompanying drawing 4 is the C-C direction cutaway view of accompanying drawing 3;

Accompanying drawing 5 is the partial view of the withdrawing slide block of accompanying drawing 3;

Accompanying drawing 6 is the A-A direction cutaway view of accompanying drawing 2;

Accompanying drawing 7 is the configuration diagram of the bottom of withdrawing bar;

Accompanying drawing 8 is the front view of another embodiment;

Accompanying drawing 9 is the D-D cutaway view of accompanying drawing 8; Wherein:

[1], eccentric boss; [2], screw die; [3], capstan winch body; [4], withdrawing bar; [5], withdrawing bar rotating shaft; [6], torsion spring; [7], location lug; [8], pipe; [9], positioning disk; [10], clamping block; [11], slide block; [12], capstan winch body bonnet; [13], screw; [14], adjustment screw; [15], connect projection; [16], location lug rotating shaft; [17], spring; [18], slide block screw; [19], the withdrawing bar is regulated section; [20], bar hole; [21], dog screw;

Embodiment: shown in accompanying drawing 1, a kind of capstan winch of die head threading machine with automatic withdrawal function, comprise hollow capstan winch body [3], with described capstan winch body [3] rotate the positioning disk [9] that is connected, fixedly connected with capstan winch body [3] and be positioned at the capstan winch body bonnet [12] at its back.The hollow bulb of described capstan winch body [3] is used to insert processed pipe fitting, on described capstan winch body [3], be provided with screw die groove radially, be provided with the screw die [2] that can radially slide in the described screw die groove, described positioning disk [9] is provided with eccentric boss [1], and the gathering sill on described eccentric boss [1] and the screw die [2] is slidingly connected; When positioning disk [9] when turning round in the counterclockwise direction, eccentric boss [1] forces screw die [2] to move laterally along radial direction; Otherwise when clockwise direction revolution positioning disk [9], screw die [2] is along radially moving to the inside.Described capstan winch body [3] head lamp brush guard pivot is connected with withdrawing bar [4], and the hollow bulb of capstan winch body [3] is stretched in the bottom of described withdrawing bar [4].As accompanying drawing 2, be connected with on the described withdrawing bar [4] to the axially extended clamping block in the inside of capstan winch body [3] [10], slidely connect movable sliding block [11] along the circumferential direction on the described capstan winch body [3], this slide block has lock slots on [11], under lock-out state, described clamping block [10] is inserted in the lock slots interior (as accompanying drawing 6) on the described slide block [11]; Under released state, described clamping block [10] breaks away from the lock slots on the described slide block [11]; Described slide block [11] is connected with positioning disk [9] by location lug [7].

Referring to accompanying drawing 2, be with torsion spring [6] in the withdrawing bar rotating shaft [5] at the pivotally connected place of described withdrawing bar [4] and capstan winch body [3], one end of this torsion spring [6] is connected with withdrawing bar [4], and the other end of torsion spring [6] is connected with capstan winch body [3], and this torsion spring [6] is used to make withdrawing bar [4] to reset.

Referring to accompanying drawing 5, described slide block [11] contacts with an end of spring [17], and the other end of spring [17] is connected with capstan winch body [3], and when clamping block [10] was inserted in the lock slots on the slide block [11], described spring [17] was in compressive state.

Referring to accompanying drawing 7, the bottom of described withdrawing bar [4] is connected with the withdrawing bar and regulates section [19], this withdrawing bar is regulated the axially extended bar hole [20] that has on the section [19] along capstan winch body [3], and the dog screw [21] that passes this bar hole [20] is fixedly connected with withdrawing bar [4].Unclamp dog screw [21], dog screw [21] is regulated in bar hole [20] relocated, can regulate the bottom and the withdrawing bar of withdrawing bar [4] and regulate the relative position of section [19], make the actual processing length of processed screw rod controlled.

Referring to accompanying drawing 4, described location lug [7] is pivotally connected by location lug rotating shaft [16] and slide block [11], this connection projection [15] of connection projection [15] that extends axially protrusion on the described positioning disk [9] is the leading section of adjustment screw [14], this connection projection [15] is inserted in the locating hole of described location lug [7], and slide block this moment [11] connects as one with positioning disk [9]; When unclamping location lug [7], described slide block [11] is separated with positioning disk [9].

Claims

1, a kind of capstan winch of die head threading machine with automatic withdrawal function, comprise hollow capstan winch body [3], with described capstan winch body [3] rotate the positioning disk [9] that is connected, fixedly connected with capstan winch body [3] and be positioned at the capstan winch body bonnet [12] at its back, on described capstan winch body [3], be provided with screw die groove radially, be provided with the screw die [2] that can radially slide in the described screw die groove, described positioning disk [9] is provided with eccentric boss [1], and the gathering sill on described eccentric boss [1] and the screw die [2] is slidingly connected; It is characterized in that: described capstan winch body [3] head lamp brush guard pivot is connected with withdrawing bar [4], the hollow bulb of capstan winch body [3] is stretched in the bottom of described withdrawing bar [4], be connected with on the described withdrawing bar [4] to the axially extended clamping block in the inside of capstan winch body [3] [10], slidely connect movable sliding block [11] along the circumferential direction on the described capstan winch body [3], this slide block has lock slots on [11], under lock-out state, described clamping block [10] is inserted in the lock slots on the described slide block [11]; Under released state, described clamping block [10] breaks away from the lock slots on the described slide block [11]; Described slide block [11] is connected with positioning disk [9] by location lug [7].

2, the capstan winch with automatic withdrawal function of die head threading machine according to claim 1, it is characterized in that: be with torsion spring [6] in the withdrawing bar rotating shaft [5] at the pivotally connected place of described withdrawing bar [4] and capstan winch body [3], one end of this torsion spring [6] is connected with withdrawing bar [4], and the other end of torsion spring [6] is connected with capstan winch body [3].

3, the capstan winch with automatic withdrawal function of die head threading machine according to claim 1 is characterized in that: described slide block [11] contacts with an end of spring [17], and the other end of spring [17] is connected with capstan winch body [3].

4, the capstan winch with automatic withdrawal function of die head threading machine according to claim 1, it is characterized in that: the bottom of described withdrawing bar [4] is connected with the withdrawing bar and regulates section [19], this withdrawing bar is regulated the axially extended bar hole [20] that has on the section [19] along capstan winch body [3], and the dog screw [21] that passes this bar hole [20] is fixedly connected with withdrawing bar [4].

5, the capstan winch with automatic withdrawal function of die head threading machine according to claim 1, it is characterized in that: described location lug [7] is pivotally connected by location lug rotating shaft [16] and slide block [11], extend axially the connection projection [15] of protrusion on the described positioning disk [9], this connection projection [15] is inserted in the locating hole of described location lug [7].