CN2829970Y

CN2829970Y - Safety device of clamp appts

Info

Publication number: CN2829970Y
Application number: CN 200520121846
Authority: CN
Inventors: 陈启明
Original assignee: XIN WEISHENG MACHINERY CO Ltd
Current assignee: XIN WEISHENG MACHINERY CO Ltd
Priority date: 2005-09-21
Filing date: 2005-09-21
Publication date: 2006-10-25
Anticipated expiration: 2015-09-21

Abstract

The utility model discloses a safety device of a clamping and positioning device. An activate switch of the device is connected with an open circuit indicating lamp in series. A conducting connection point is connected in parallel with a conducting indicating lamp and an open circuit protection relay. The conducting indicating lamp is connected in parallel with a plurality of return circuits which can be empty pressure safety circuits or oil pressure safety circuits. Every return circuit comprises an activate switch, and the conducting connection point is connected in parallel with an operation state indicating lamp and an empty pressure or an oil pressure joint which is connected in parallel with a pressure testing relay and a guard state indicating lamp. The utility model is connected with an abnormal connection point or a protective switch connection point of the processing machinery in series. When the pressure for checking the return circuits is insufficient, the device and the pressure testing relay actuate to turn on the guard state indicating lamp and make the open circuit protection relay cut off the power, so that the processing machinery is stopped to generate a protecting program.

Description

The clamp tool safety device

Technical field

The utility model relates to a kind of clamp tool safety device, particularly a kind of can be when its folder of processing equipment, tool produce pressure anomaly, outage escape procedure is to produce the clamp tool safety device of security protection effect.

Background technology

On processing equipment, must use anchor clamps or tool with fixation workpiece and be convenient to carry out workpiece processing operation, anchor clamps or tool fixation workpiece system importing air pressure or oil pressure are as power source, so that it can accept process operation by fixation workpiece, yet, can find according to actual processing experience: when it fails to fix workpiece really when anchor clamps or tool, various accidents then take place easily, and for example: it is easy slippage that cutter carries out processing work once contact workpiece; Or air pressure or oil pressure pressure fails to transfer to really predetermined value, makes workpiece easily rock displacement when stressed; Situation like that all can cause the damage of mould, cutter, and the processing equipment main shaft also may produce stuck damage because of the cutter bump, and this kind situation regular meeting causes mechanical shutdown maintenance to fix a breakdown, and production cost is increased.

And when above-mentioned condition took place, the immense strength that is produced during owing to the machinery knives rotation easily made Work piece high-speed fly out, and regular meeting causes injuring unexpectedly of Field Force.

And owing on the pressure circuit of existing processing equipment any alarming device is not arranged, therefore, whether operating personnel can't understand workpiece and push down really before process operation, can't determine also whether the strength of pushing down reaches the safe default value and promptly activate processing equipment, the many danger of having hidden of this kind situation.

The utility model content

Main purpose of the present utility model is to provide a kind of clamp tool safety device, and it has an activator switch, and its circuit-opening contact is connected with the indicator lamp that opens circuit, and its conducting contact then is parallel with a conducting indicator lamp and an open circuit protection relay (RELAY);

The utility model is to adopt following technological means to realize:

Be parallel with several loops in this conducting state lamp, its can be the pneumatics safety return circuit or be the oil pressure safety return circuit, wherein each loop includes an activator switch, its conducting contact also is connected to the operating state display lamp and a sky (oil) crimp head, and by this pneumatics or an Oil-pressure joint pressure detecting relay (RELAY) in parallel again and a guard mode display lamp;

The utility model clamp tool safety device is serially connected with the unusual contact or the protection switch contact of processing equipment.

By detecting circuit pressure when not enough, then before address the pressure detecting relay actuation, the activation of guard mode display lamp is luminous, and the running that makes this open circuit protection relay escape outage stopping processing equipment is to produce defence program.

The utility model compared with prior art has remarkable advantages and beneficial effect:

In sum; the utility model clamp tool safety device is by detecting circuit pressure when not enough; then before address the pressure detecting relay actuation, the activation of guard mode display lamp is luminous, and the running that makes this open circuit protection relay escape outage stopping processing equipment is to produce defence program.Have good processing equipment security protection effect,, can prevent that more the site operation personnel is subjected to unexpected injury except that avoiding process tool to hit situation such as cutter takes place.

Description of drawings

Fig. 1 is a circuit connection diagram of the present utility model;

Fig. 2 is applied to the positive logic connection diagram for the utility model;

Fig. 3 is applied to the negative logic connection diagram for the utility model;

Fig. 4 is a three-dimensional appearance front schematic view of the present utility model;

Fig. 5 is a three-dimensional appearance schematic rear view of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing specific embodiment of the utility model is illustrated:

See also Fig. 1, be circuit connection diagram of the present utility model, it has an activator switch 1, and its circuit-opening contact 10 is connected with the indicator lamp 101 that opens circuit, and its conducting contact 11 then is parallel with a conducting indicator lamp 111 and an open circuit protection relay 2; Be parallel with several loops 3 at this conducting state lamp 111; it can be pneumatics safety return circuit or oil pressure safety return circuit; wherein; each loop 3 includes an activator switch 30; its conducting contact 301 also is connected to operating state display lamp 31 and a pneumatics or Oil-pressure joint 32, and by this pneumatics or Oil-pressure joint 32 a pressure detecting relay 33 in parallel again and a guard mode display lamp 34.

The utility model clamp tool safety device is serially connected with the unusual contact or the protection switch contact of processing equipment, no matter is that positive logic or negative logic loop all can connect use; See also described positive logic connection diagram and the described negative logic connection diagram that is applied to of Fig. 3 of being applied to of Fig. 2.

Figure 4 shows that three-dimensional appearance front schematic view of the present utility model; Fig. 5 then is a three-dimensional appearance schematic rear view of the present utility model.

Loop of the present utility model action can be as described below:

When un-activation, then activator switch 1 is cut to circuit-opening contact 10 places, and the indicator lamp 101 that opens circuit is luminous;

When activator switch 1 is cut to conducting contact 11, then aforementioned indicator lamp 101 outages of opening circuit, conducting indicator lamp 111 is luminous;

Cut to conducting contact 301 when its activator switch 30 in each loop 3, and then operating state display lamp 31 is luminous;

When pressure detecting pressure was enough, then pressure detecting relay 33 kept being failure to actuate, and open circuit protection relay 2 also is failure to actuate;

When detecting the circuit pressure deficiency, then pressure detecting relay 33 activates, and guard mode display lamp 34 is luminous, and makes this open circuit protection relay 2 escapes produce defence program;

By said procedure, the utility model can be detected in the procedure, when pressure occurs when unusual, can be in good time with the guard mode display lamp 34 luminous caution effects that reach, and escape outage automatically, produce defencive function.

It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of utility model, and it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1, a kind of clamp tool safety device, it has an activator switch, and its circuit-opening contact is connected with the indicator lamp that opens circuit, and it is characterized in that: then be parallel with a conducting indicator lamp and an open circuit protection relay at its conducting contact;

Be parallel with several loops at this conducting state lamp, can be the pneumatics safety return circuit or be the oil pressure safety return circuit, wherein each loop includes an activator switch, its conducting contact also is connected to the operating state display lamp and a pneumatics or Oil-pressure joint, and by this pneumatics or an Oil-pressure joint pressure detecting relay in parallel again and a guard mode display lamp;

Described clamp tool safety device is unusual contact or the protection switch contact that is serially connected with processing equipment.