CN2551379Y

CN2551379Y - Quick movement safety device for tool post of horizontal lathe

Info

Publication number: CN2551379Y
Application number: CN 02208357
Authority: CN
Inventors: 张荣桂
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-03-23
Filing date: 2002-03-23
Publication date: 2003-05-21
Anticipated expiration: 2012-03-23

Abstract

The utility model relates to a cutter holder rapidly moving safety device for a horizontal lathe, and is designed for avoiding an equipment accident that clamping disc is impacted by the cutter holder when the rapidly moving button is pressed by lathe operator by mistake. A overtravel limit switch connected in series is added into the cutter holder rapidly moving control circuit, the overtravel limit switch is fixed on the right side face of the sliding box of the lathe, the limiting plate of the overtravel limit switch is fixed on the inner side of the root part of a control lever handle, and the overtravel limit switch can be disconnected by the positive and negative movement of the handle, namely, when the clamping disc rotates, the cutter frame can not move rapidly, thereby, the protection function is realized. The structure of the proposal is very simple, but the safety function is very obvious, and the utility model is an ideal lathe safety device.

Description

Horizontal lathe knife rest fast moving safety device

The utility model relates to a kind of horizontal lathe knife rest fast moving safety device.

Present novel horizontal lathe, typical model such as CA6140 type lathe have increased knife rest fast moving mechanism than old type tube lathe, its control circuit is fast moving button SB3 and the auxiliary reclay KM3 that is connected with polyphone at 110V the level two ends of control transformer TC, press the button SB3 and just can make auxiliary reclay KM3 get electric startup fast moving motor M 3, and drive the knife rest fast moving by mechanical transmission mechanism.It has shortened operation non-cutting time, has alleviated turner labour intensity, but has also increased the possibility that equipment breakdown takes place simultaneously, and the turner Chang Yin that particularly begins to learn mistake touches the button SB3 and the major accident of knife rest bump chuck takes place.The power of lathe is powerful now, even the thicker workpiece of lathe tool bump also major accident may take place.The reason that the bump accident takes place is when bump takes place, and chuck is rotating simultaneously, also can not cause major accident if take place to clash into knife rest when chuck does not change.

The purpose of this utility model just is to provide a kind of above-mentioned bump accident of avoiding taking place, protection lathe horizontal lathe knife rest fast moving safety device safe in utilization.

For achieving the above object, in 110V time grade the fast moving loop of control transformer TC, increased a travel switch SQ3, made travel switch SQ3 and press button SB3 and auxiliary reclay KM3 three be connected 110V the level two ends of control transformer TC jointly.The limiting plate of travel switch SQ3 is fixed on the appropriate location of the operating mechanism of lathe, travel switch SQ3 is fixed on the relevant position outside the operating mechanism of close limiting plate of lathe.When making control crank be in positive and negative car intermediate stop position, travel switch SQ3 is in on-state; When handle was in positive car and anti-car position, travel switch SQ3 can not make the knife rest fast moving, so just can avoid taking place by knife rest fast moving button because of mistake the possibility of the accident of knife rest bump chuck.

Travel switch SQ3 preferably is fixed on the right side of slip crate, and the wiring of this position switch is the shortest and safe and out of sight, and its limiting plate is fixed on the control crank inboard, if the handle inner space is too narrow, handle suitably outwards can be moved.

The installation site of travel switch and its limiting plate can about relative, also can be relatively inside and outside, if about the two relatively the time, the acting surface that limiting plate is relative with travel switch is the plane; If the two is inside and outside when relative, the acting surface that limiting plate is relative with travel switch should be the arc concentric with control stick.

When box-like travel switch is moved in the SQ3 use, only need a limiting plate, limiting plate is fixed on joystick lever root inboard, travel switch is fixed on the right side of lathe slip crate, during parking spot in the middle of joystick lever is in positive and negative car, makes limiting plate aim at the roller or the sensitive surface of travel switch, at this moment, have only when chuck does not change, travel switch moves and connects, and presses the button SB3 and just can make the knife rest fast moving; And when chuck rotated, travel switch was failure to actuate and is disconnected, and press the button SB3 this moment just can not make the knife rest fast moving, thereby had avoided taking place because of the SB3 that touches the button by mistake the possibility of bump accident.

When SQ3 uses moving disconnected formula travel switch, then need use two limiting plates, two limiting plates are fixed on the inboard of control crank root, leave suitable neutral gear in the middle of making two limiting plates, travel switch is fixed on the right side of slip crate, when control crank is in the parking spot of positive and negative car centre, the roller or the sensitive surface that make the middle neutral gear of two limiting plates aim at travel switch SQ3, when handle was pulled to positive car and anti-car position, two limiting plates were aimed at the roller or the sensitive surface of travel switch respectively.At this moment, be that travel switch is failure to actuate and is connected when chuck does not change, knife rest energy fast moving; When chuck rotated, travel switch moved and disconnects, and knife rest can not fast moving.Can have safety protection function equally.

When box-like travel switch is moved in travel switch SQ3 use, can only use a limiting plate, moving disconnected formula travel switch is simpler than using.

In moving box-like travel switch, mechanical type, all can use, but if use mechanical moving box-like travel switch near switch and tongue tube etc., its roller pressurized always during long term stop damages easily.And the limiting plate of dry-reed tube switch needs the magnetic material manufacturing, and it makes comparatively difficulty.And if travel switch SQ3 is when using near switch, even can not use limiting plate, can directly be used as limiting plate by the control crank root.Therefore, when travel switch SQ3 use moving box-like during, the simplest, practical near switch.

Be the needs of the skilled turner of adaptive technique, in the fast moving circuit, also can increase a functional select switch KX, KX is connected in parallel the two ends of travel switch SQ3.When KX connected, the travel switch two ends were lost safety protection function by short circuit; When KX disconnected, travel switch had just recovered safety protection function.When turner is skilled in technique, when be sure oing SB3 by mistake not touched the button, connect K switch X, cancellation safety protection function, simplified operation.

Horizontal lathe knife rest fast moving safety device of the present utility model, its structure is extremely simple, and cost is very low, but its safety protection function is significantly and reliably.

Description of drawings:

Fig. 1 is a circuit theory sketch of the present utility model

It is box-like near switch during as travel switch SQ3 and the installation site in kind schematic diagram of its limiting plate that Fig. 2 is

Among the figure: 1, slip crate 2, handle 3, travel switch SQ3 4, limiting plate

In Fig. 1, connection strong frame fast moving button SB3, auxiliary reclay KM3 and travel switch SQ3 (3) contact at 110V the level two ends of control transformer TC.

In Fig. 2, travel switch SQ3 (3) is fixed on the right side of slip crate (1), limiting plate (4) is fixed on the inboard of handle (2) root, when handle is in the parking spot of positive and negative car centre, make limiting plate aim at the sensitive surface of travel switch SQ3, promptly when chuck did not change, travel switch SQ3 moved and connects, and presses the button SB3 and just can make the knife rest fast moving; When handle was in positive car and anti-car position, limiting plate left the sensitive surface of travel switch SQ3, made it be failure to actuate and disconnect, and at this moment, no matter be the anti-car of positive car, pressed the button SB3 and can not make the knife rest fast moving.Promptly when chuck rotates, make the knife rest can not fast moving; And when chuck did not change, knife rest could fast moving.So have safety protection function.

Claims

1, a kind of horizontal lathe knife rest fast moving safety device, its knife rest fast moving control circuit, be knife rest fast moving button SB3 and the auxiliary reclay KM3 that is connected with polyphone at 110V the level two ends of control transformer TC, it is characterized in that: in its knife rest fast moving control circuit, also have a travel switch SQ3.

2, horizontal lathe knife rest fast moving safety device according to claim 1 is characterized in that: described travel switch SQ3 is 110V level two ends that are connected control transformer TC with press button SB3 and auxiliary reclay KM3 three jointly.

3, horizontal lathe knife rest fast moving safety device according to claim 1, it is characterized in that: the limiting plate of described travel switch SQ3 is fixed on the appropriate location of the operating mechanism of lathe, travel switch SQ3 is fixed on the relevant position outside the operating mechanism of close limiting plate of lathe, when making control crank be in positive and negative car intermediate stop position, travel switch is in on-state; When handle was in positive car and anti-car position, travel switch all was in off-state.