CN202343967U

CN202343967U - Resetting device for saddle of automatic hydraulic lathe

Info

Publication number: CN202343967U
Application number: CN2011203266808U
Authority: CN
Inventors: 陈正国
Original assignee: HUBEI FUXIN MACHINE TOOL MANUFACTURE CO Ltd
Current assignee: HUBEI FUXIN MACHINE TOOL MANUFACTURE CO Ltd
Priority date: 2011-08-31
Filing date: 2011-08-31
Publication date: 2012-07-25
Anticipated expiration: 2021-08-31

Abstract

The utility model discloses a resetting device for a saddle of an automatic hydraulic lathe, which is used for solving the problem such as effective non-machining wear of a cutter, location deviation caused by easy contact part deformation generated by the impact contact of a movable contact and a fixed contact and the like in the prior art and is characterized in that the moving contact (7) is modified to be composed of an insulating shell (3), a steel contact block (4) and a screw (5) which are arranged on the saddle, and a lead is connected with one end of a relay KA2 of a control circuit through the screw (5) so as to become a control anode. The resetting device has the advantages of simple structure, reliability in working, high production efficiency and the like and can be widely applied to automatic hydraulic lathes of various types.

Description

Hydraulic automatic lathe knife rest repeated positioning device

One, technical field

The utility model belongs to mechanical transmission, relates in particular to the knife rest resetting control of the semi-automatic or automatic lathe of hydraulic control.

Two, background technology

At present, hydraulic automatic lathe knife rest repeated positioning device is to be made up of machinery and automatically controlled two parts, and mechanical part comprises that moving contact and static contact and front and back are near switch contact etc.; Automatically controlled part then comprises near switch S Q1, SQ2, time-delay relay KT1, contactor KA1, KA2, electromagnet YV1a, the YV1b of control magnetic valve, compositions such as starting switch SB3.Press starting switch SB3 during work; YV1a is charged for KA1 coil, magnetic valve electromagnet; Knife rest advances near switch S Q1 and sends instruction, and time-delay relay KT1 coil is charged, and moving on through the time-delay knife rest makes knife rest movable contact a, stationary contact b contact; Time-delay arrival makes relay K A2, magnetic valve electromagnet, and YV1b is charged, and knife rest is retreated the triggering original position and promptly accomplished processing near switch S Q2.Though the repeated positioning device of this structure can reach the purpose of resetting; But because of having between trigger region near switch; Must can guarantee that just the knife rest dynamic/static contact impacts contact and controls each accurate positioning through time-delay; There is following problem:, quicken the non-processing of cutter and effectively wear and tear because time-delay makes the non-effective cutting lengthening of cutter; Dynamic/static contact impacts contact and is prone to make the contact position distortion, influences repetitive positioning accuracy, reduces product qualified rate; To often adjust, influence production efficiency again.

Three, summary of the invention

The purpose of the utility model is for market a kind of reasonable in design, simple in structure, reliable operation, hydraulic automatic lathe knife rest repeated positioning device that production efficiency is high to be provided.

The technical scheme of the utility model is: it is made up of mechanical part and control circuit two parts that static contact and moving contact constitute; Said moving contact is to be made up of the insulation shell, steel contact block and the screw that are arranged on the knife rest; The steel contact block places in the insulation shell; Its terminal screw that passes through links to each other the end of lead with the relay K A2 of control circuit the other end connecting to neutral of this relay K A2.

The beneficial effect of the utility model is: promptly send knife rest when the dynamic/static contact contact and retreat instruction; Knife rest must not delayed time and promptly retreated; Avoided the dynamic/static contact bump to cause distortion and influence positioning accuracy; The cutting of simultaneously needn't often adjusting and delay time, the unnecessary wearing and tearing of minimizing cutter, production efficiency is greatly improved.

Below in conjunction with accompanying drawing the utility model is further described.

Four, description of drawings

Fig. 1 is the utility model partial structurtes sketch mapes;

Fig. 2 is the utility model local control circuit sketch map.

Among the figure: 1 is locking nut, and 2 is bolt, and 3 is insulation shell, and 4 is the steel contact block, and 5 is screw, and 6 is static contact, and 7 is moving contact.

Five, the specific embodiment

As shown in Figure 1; On the prior art basis; The moving contact that former cause locking nut, spring washer and bolt are formed transform the moving contact that is made up of insulation shell 3, steel contact block 4 and screw 5 as; Said steel contact block 4 places in the insulation shell 3, and its terminal screw 5 that passes through links to each other the end of lead with the relay K A2 of control circuit the other end connecting to neutral (as shown in Figure 2) of this relay K A2.When implementing the utility model, only need press starting switch SB3, this moment control circuit relay K A1 coil electricity, magnetic valve electromagnet YV1a gets electric, knife rest advances; When knife rest advances when putting in place, moving contact 7 contacts with contact, static contact 6 end and promptly sends instruction, relay K A2 coil electricity; Magnetic valve electromagnet YV1b gets; Knife rest is retreated to the original position triggering and is promptly accomplished processing near exploitation SQ2, so repeatedly, can realize that knife rest repeats accurately to locate.

Claims

1. hydraulic automatic lathe knife rest repeated positioning device; It comprises mechanical part and the control circuit two parts that are made up of static contact (6) and moving contact (7); It is characterized in that: said moving contact (7) is to be made up of the insulation shell (3), steel contact block (4) and the screw (5) that are arranged on the knife rest; Steel contact block (4) places in the insulation shell (3), and its terminal screw (5) that passes through links to each other the end of lead with the relay K A2 of control circuit the other end connecting to neutral of this relay K A2.