CN2210057Y

CN2210057Y - Arrangement for working tap of side set

Info

Publication number: CN2210057Y
Application number: CN 94220493
Authority: CN
Inventors: 吕文富
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-09-05
Filing date: 1994-09-05
Publication date: 1995-10-18
Anticipated expiration: 2004-09-05

Abstract

The utility model relates to equipment of machining staggered tooth screw wimble, and is mainly composed of a front finial which can to and fro displace at the axial direction, an axial elastic back finial which is provided with a micrometer gauge and a poking fork which can restrict location, and the equipment is suitable for a shovel tooth machine or a refitted various threading machines, can continuously left and right alternately grind side edges of the screw wimble which have with different names, and can once clamp and complete the relief grinding working process of the staggered tooth screw wimble, and the utility model has the advantages of the simple structure, convenient operation and easy production.

Description

Arrangement for working tap of side set

The utility model relates to a kind of equipment of new processing staggered-tooth tap, and this equipment is applicable to that through on the regular screw threads machining tool of simple refit No. one time staggered-tooth tap is processed into the regular tap relief grinding in the clamping location.

By retrieval and market survey, not have to process specially at present the equipment of staggered-tooth tap, can only utilize screw grinder to process, directly process staggered-tooth tap and have following weak point with screw grinder:

1, production efficiency is low, every screw tap is needed to finish processing through twice relief grinding, because of the tool setting difficulty, two lathes commonly used respectively relief grindings one the side edge not of the same name of screw tap.

2, the side edge of being crossed by relief grinding in the actual use of staggered-tooth tap is not participated in cutting, and its requirement on machining accuracy is not high, uses precision and expensive screw grinder to process the real waste that belongs to.

3, use screw grinder to process, its cost of equipment and maintenance care expense are all higher, have increased the processing cost of product.

The purpose of this utility model is for a kind of screw grinder of avoiding using is provided, simultaneously again can a clamping, only carry out the process equipment that relief grinding just can be processed into regular tap staggered-tooth tap.

Major technique content of the present utility model is by doing the preceding top of axial shift reciprocately, but having the axial elasticity tail centre of amesdial and three of the shift forks of control position partly forms, be contained in the main shaft of lathe respectively, on tailstock and the bed surface, can do corresponding axial displacement in the relief grinding process by the processed screw tap of clamping, No. one time clamping is processed into staggered-tooth tap, wherein, before in the top taper hole that is installed in sliding sleeve, sliding sleeve is slidingly matched by feather key and taper-shank arbor, taper-shank arbor is fixedly mounted in the taper hole of machine tool chief axis, dial is fixedly mounted on the sliding sleeve, the dial back is fixed with quantity and the identical contact of processed cutter blade number, ring and two end face bearings are fixed on the sliding sleeve with round nut, shift fork is contained between two sidewalls of support with rotating shaft, the upper end of shift fork and bearing pin on being fixed on ring its lower end that is rotatably assorted is then hinged with electromagnet and contact with the V-type groove of gag lever post, one end of gag lever post is connected with screw rod, switch is fixed on the sidewall of support and can contacts with contact, electromagnet is fixed on the sidewall of support, support is fixed on the bed surface of lathe, tail centre is contained in the taper hole of the slide-bar of being with spring, contact block is fixed on the slide-bar and keeps contacting with amesdial, and amesdial is contained on the tail stock for machine tool.

Advantage of the present utility model is:

(1), every the process of staggered-tooth tap relief grinding side edge can just be finished for one time by a clamping relief grinding owing to adopted axially to move back and forth top.

In the adjustment in (2) workpiece tool setting, gag lever post V-type groove gap and the process top displacement all can be from amesdial direct reading, easy to operate.

(3) simple in structure, manufacture easily.

View when accompanying drawing is the utility model processing staggered-tooth tap.

Provide embodiment of the present utility model as follows in conjunction with the accompanying drawings:

The utility model mainly is made up of taper-shank arbor 1, sliding sleeve 2, bearing pin 3, end face bearing 4, dial 5, preceding top 6, tail centre 7, contact block 8, slide-bar 9, support 10, electromagnet 11, shift fork 12, switch 13, gag lever post 14, screw rod 15, contact 16, ring 17, amesdial 18 as shown in drawings; Wherein, taper-shank arbor 1 is fixedly mounted in the machine tool chief axis hole, sliding sleeve 2 is slidingly matched by feather key and taper-shank arbor 1, preceding top 6 are fixedly mounted in the taper hole of sliding sleeve 2, dial 5 usefulness round nuts are fixedly mounted on the sliding sleeve 2, bearing pin 3 is fixedly mounted on the ring 17, ring 17 is contained in the middle of two end face bearings 4 and with round nut and is contained on the sliding sleeve 2, ring 17 can relatively rotate with sliding sleeve 2, several contacts 16 that number is identical with processed cutter blade number are fixed on the dial 5, preceding top 6 are fixedly mounted in the taper hole of sliding sleeve 2, tail centre 7 is fixedly mounted in the taper hole of slide-bar 9, contact block 8 is fixed on the slide-bar 9, support 10 usefulness pressing plates and being bolted on the bed surface of lathe, and electromagnet 11 is fixedly mounted on the sidewall of support 10, shift fork 12 is contained between two sidewalls of support 10 by rotating shaft, but switch 13 is fixed on the sidewall of support 10 and can keeps position contacting with the contact 16 on the dial 5, and gag lever post 14 is with screw rod 15 suits, and amesdial 18 is fixed on the tail stock for machine tool.

Operation principle of the present utility model is such: processed screw tap be clamped in before top 6 and tail centre 7 between, before when the slide-bar 9 that spring is housed makes tail centre 7 clamp processed screw tap pressure being pushed to top 6, sliding sleeve 2 is moved to the left, the bearing pin 3 that is fixed on two relative 180 ° of angles of the ring 17 on the sliding sleeve 2 links to each other with shift fork 12 upper ends, so swing left with sliding sleeve 2 shift fork 12 upper ends, the lower end of shift fork 12 is then swung the right side that is close to gag lever post 14V type groove to the right simultaneously, this moment, electromagnet was in off-position, when processed screw tap in the process under dial 5 drives, in the moving pitch process of the relative screw tap axial displacement of all emery wheels of revolution, the side edge of a screw tap tooth of every relief grinding, contact 16 is laid a finger on switch 13, switch 13 power on/off, the action of control electromagnet, 12 swings of electromagnet 11 control shift forks, top 6 is corresponding mobile to the left or to the right with sliding sleeve 2 before making, on dial 5, load onto the number contact 16 identical with processed cutter blade number, can be under dial 5 drives, when processed screw tap rotates under contact 16 controls the distance of a setting of move left and right, emery wheel successively alternately the side edge not of the same name of relief grinding per tooth finish the process of staggered-tooth tap, thereby the upper-lower position of setting up gag lever post can be set up the pendulum angle of the gap control shift fork 12 of V-type groove, promptly control the axial displacement of screw tap, utilize amesdial 18 to contact with contact block 8, can measure the displacement of tail centre 7, so that observe the situation of tool setting debugging and process.

The staggered-tooth tap of even number sword lobe or odd number sword lobe no matter, clamping of all available this equipment machines.

Claims

1, a kind of equipment of processing staggered-tooth tap, top before comprising, dial, tail centre, wherein, before in the top taper hole that is installed in dial, it is characterized in that by doing the preceding top of axial displacement, axial elasticity tail centre with amesdial is partly formed with three of the shift forks that can control the displacement of sinciput point, is installed in respectively on main shaft, tailstock and the bed surface of lathe.

2, press the equipment of claim 1, it is characterized in that: in the preceding top taper hole that is installed in sliding sleeve, sliding sleeve is slidingly matched by feather key and taper-shank arbor, taper-shank arbor is fixedly mounted in the machine tool chief axis hole, dial is fixed on the sliding sleeve, contact is fixed on the dial, and ring and two end face bearings are contained on the sliding sleeve and keep axial restraint.

3, by the equipment of claim 1, it is characterized in that: tail centre is contained in the taper hole on the slide-bar that has spring, and contact block is fixed on the slide-bar and with amesdial and keeps in touch.

4, press the equipment of claim 1, it is characterized in that: shift fork is contained in the rotating shaft between the support two side, the upper end of shift fork is connected with the bearing pin of ring, its lower end is hinged with electromagnet and contact with the spacing V-type groove of gag lever post, gag lever post and screw rod join and can move up and down with screw rod, switch is fixed on the cradle wall, and electromagnet is fixed on the cradle wall, and support is fixed on the bed surface of lathe.