CN206632768U - A kind of disc type manipulator tool magazine swaging clamp falls knife fault pre-alarming device - Google Patents

Abstract

The utility model discloses a kind of disc type manipulator tool magazine swaging clamp to fall knife fault pre-alarming device, aim to solve the problem that to existing Circular Test of NC Machine Tools disk-type mechanical hand tool magazine fall knife, swaging clamp failure carry out early warning problem, the present apparatus includes two prewarning units, and described prewarning unit is made up of color mark sensor, crossbeam, alarm, support.Disc type manipulator tool magazine swaging clamp described in the utility model falls the generation that knife fault pre-alarming device can comprehensively detect the thread connection loosening of handle of a knife and blind rivet, and the thread connection for needing to detect different degrees of handle of a knife and blind rivet can be directed to and loosened, suitable for the disc type manipulator tool magazine of different model, embody flexibility and the versatility of the present apparatus, can be in the state for extended periods automatic running of no worker monitor, labor intensity can be reduced, expose and excite product bug, the basic data of practicality is provided for the reliability assessment of disc type manipulator tool magazine, it can be used for the screening of chain-plate type disc type manipulator tool magazine.

Description

A kind of disc type manipulator tool magazine swaging clamp falls knife fault pre-alarming device

Technical field

A kind of device applied to the fault pre-alarming of disc type manipulator tool magazine on Digit Control Machine Tool is the utility model is related to, more Exactly, the utility model is related to it is a kind of can to Digit Control Machine Tool disc type manipulator tool magazine fall knife, swaging clamp failure carry out The device of early warning.

Background technology

Digit Control Machine Tool is the basis for improving national manufacture level and equipment, is to weigh a National Industrial prosperity water The flat, important symbol of overall national strength.The device being generally equipped with as Digit Control Machine Tool, tool magazine system are to provide automation process Needed for storage knife and tool changing demand a kind of device, by cutter-exchange mechanism and can store much knives tool tool magazine form, change Tradition by programme-control, can complete a variety of process requirements taking human as the main mode of production, as milling, drilling, Bore hole, tapping etc., significantly shorten processing time-histories, reduce production cost.Disc type manipulator tool magazine is a kind of typical tool magazine system, It is mainly used in the equipment such as machining center, for storing up knife, tool changing, improves the automaticity of Digit Control Machine Tool, in production Have the function that it is important, once disc type manipulator tool magazine breaks down, it will larger negative effect is produced to production efficiency.

Statistical result in recent years shows, as the chief functional part of Digit Control Machine Tool, domestic disc type manipulator Tool magazine overall productivity increases for years, but its easily hair failure, fluctuation of service, chife failure models therein include swaging clamp and Fall knife, swaging clamp failure gently then causes disc type manipulator tool magazine tool changing unsuccessful once occurring, and causes production to suspend, influences to give birth to Efficiency is produced, heavy then manipulator motor load is increased, motor is burnt out；Fall knife failure once occurring, gently then cause disc type manipulator Tool magazine tool changing is unsuccessful, causes production to suspend, and influences production efficiency, and handle of a knife that is heavy then dropping falls, and smashes lathe, workpiece, very To accidental injury worker is possible to, consequence is hardly imaginable.So an urgent demand can find swaging clamp early, fall knife failure, and sent out in failure Early warning is carried out before death so that operating personnel can obtain alarm in time and exclude incipient fault, do not influence production, do not cause damage. And it is to cause swaging clamp and fall one of the main reason for knife failure occurs that the thread connection of handle of a knife and blind rivet, which loosens, it is therefore necessary to right The thread connection of handle of a knife and blind rivet, which loosens, to be detected, so as to realize to swaging clamp, fall the early warning of knife failure.

In addition, in country " high-grade numerical control and basic manufacturing equipment " scientific and technological key special subjects, the research on common technology Section 1 be exactly " reliability design with performance test technology ", and reliability Work is exactly the struggle with failure, so also Ask we carry out fault pre-alarming in terms of work.

The content of the invention

Technical problem to be solved in the utility model is the swaging clamp of the disc type manipulator tool magazine of Digit Control Machine Tool, falls knife event The problem of hindering early warning, more precisely, technical problem to be solved in the utility model are the disc type machinery of Digit Control Machine Tool The problem of detection that one of the swaging clamp of hand tool magazine, the occurrence cause for falling knife failure --- the thread connection of handle of a knife and blind rivet loosen. In order to solve this problem, the utility model provides a kind of disc type manipulator tool magazine swaging clamp and falls knife fault pre-alarming device.

Institute's the utility model is made up of two prewarning units.

Described prewarning unit is made up of color mark sensor, crossbeam, alarm, support；The base of support is put down for cuboid Plate, there are four manholes and 444 screwed holes on the base of support, the both ends on the side on the right side of the base of support respectively have one Individual cuboid column, two cuboid columns are vertical with the base of support, respectively there is a long strip through hole on two cuboid columns； Crossbeam is a rectangular parallelepiped structure part, there is a long strip through hole among crossbeam, and respectively there is a manhole at the both ends of crossbeam；Alarm Four screwed holes of four manholes and support in four small square plates of the casing of device are respectively with four screw attachments, crossbeam On two manholes coupled respectively with two groups of bolt and nuts with two long strip through hole on two cuboid columns of support, The mounting surface of color mark sensor contacts with the rectangle face of crossbeam, two on the mounting surface of color mark sensor screwed hole and crossbeam Long strip through hole respectively with two screw attachments.

Two described prewarning units are all fixed on the disc type tool magazine of disc type manipulator tool magazine, two prewarning units After fixation, the axis of the light transmitting terminal of the color mark sensor of one of prewarning unit simultaneously with the axis of disc type tool magazine and Intersected vertically close to tool change position and the axis that is in the broach shell on the right side of tool change position, the colour code sensing of another prewarning unit The axis of the light transmitting terminal of device with the axis of disc type tool magazine and close to tool change position and is in the left side of tool change position simultaneously The axis of broach shell intersects vertically.

The alarm of described prewarning unit by signalling generator, 24V dc sources, alarm switch, relay, casing, connect Line terminals row's composition, casing is the shell structure part of cuboid, and four fillet welding of casing are connected to four small square plates, each square plate On have a manhole, the top surface of casing is equipped with signalling generator, and side is equipped with connecting terminal block, and connecting terminal block has seven Binding post, one jiao of the top surface of casing are equipped with alarm switch, and 24V dc sources, relay are fixed on the inside of casing.

Two power lines of described 24V dc sources are connected into 220V by two binding posts of connecting terminal block The power line negative pole of the circuit color mark sensor of alternating voltage is connected on 24V direct currents by a binding post of connecting terminal block The com ends in the source ,+24V that the positive pole of color mark sensor is connected on 24V dc sources by a binding post of connecting terminal block are straight Voltage end is flowed, the output line of color mark sensor is connected on a pole of signalling generator by a binding post of connecting terminal block, Another pole of signalling generator connects the com ends of 24V dc sources, and the power line that alarm switch is connected on 24V dc sources connects In the circuit for entering the circuit with 220V AC voltage, alarm switch is parallel with the normally opened contact of relay, the line of relay The two poles of the earth of circle pass through the Digit Control Machine Tool where two binding posts access disc type manipulator tool magazine of connecting terminal block respectively Digital control system.

The beneficial effects of the utility model are compared with prior art：

1. the utility model can comprehensively detect the generation of the thread connection loosening of handle of a knife and blind rivet, and can be directed to needs The thread connection for detecting different degrees of handle of a knife and blind rivet loosens.

2. the utility model is applied to the disc type manipulator tool magazine of different model, embodies the flexibility of the present apparatus and lead to The property used.

3. the utility model can reduce labor intensity in the state for extended periods automatic running of no worker monitor, exposed and sharp Product bug is sent out, the basic data of practicality is provided for the reliability assessment of disc type manipulator tool magazine, can be used for chain-plate type circle The screening of disk-type mechanical hand tool magazine.

4. the utility model can also be run manually, the operability, more of the device is embodied from the angle of ergonomics Feature.

Brief description of the drawings

Fig. 1 is axonometric drawing of the present utility model.

Fig. 2 be blind rivet of the present utility model, handle of a knife, cutter composition component structural representation.

Fig. 3 is the partial enlarged drawing at E in Fig. 1.

Fig. 4 is the partial enlarged drawing of the utility model front view.

Fig. 5 is the M direction views in Fig. 4.

Fig. 6 is the N direction views in Fig. 4.

Fig. 7 is the axonometric drawing of alarm of the present utility model.

Fig. 8 is the connection circuit of the utility model alarm and its connection circuit theory diagrams with outside.

Fig. 9 is the workflow diagram of prewarning unit of the present utility model.

Figure 10 is axonometric drawing of the disc type manipulator tool magazine when manipulator grabs knife.

Figure 11 is the G direction views in Figure 10.

In figure：1. disc type tool magazine, 2. handle of a knifes, 3. cutters, 4. prewarning units, 5. color mark sensors, 6. crossbeams, 7. reports Alert device, 8. supports, 9. blind rivets, 10. signalling generators, 11.24V dc sources, 12. alarm switches (symbol Q), 13. relays (symbol KM), 14. casings, 15. connecting terminal blocks, 16. manipulators, 17. main shaft positions, 18. digital control system (symbols NC)。

The long measure of dimensioning is millimeter (mm) in figure, angular unit degree of being (°), and DC voltage symbol is DC, alternating voltage symbol are AC.

Embodiment

Refer to shown in Fig. 1 to Fig. 8,

The utility model is made up of two prewarning units 4；

Described prewarning unit 4 is made up of color mark sensor 5, crossbeam 6, alarm 7, support 8；The base of support 8 is length Cube flat board, there are four manholes and four screwed holes, the both ends on the side on the right side of the base of support 8 on the base of support 8 Respectively there is a cuboid column, two cuboid columns are vertical with the base of support 8, respectively have on two cuboid columns one long Bar through hole；Crossbeam 6 is a rectangular parallelepiped structure part, there is a long strip through hole among crossbeam 6, and respectively there is a circle at the both ends of crossbeam 6 Shape through hole, four screwed holes of four manholes in four small square plates of the casing 14 of alarm 7 and support 8 are respectively with four Individual screw attachment, two manholes on crossbeam 6 are used respectively with two long strip through hole on two cuboid columns of support 8 Two groups of bolt and nut connections, the mounting surface of color mark sensor 5 contact with the rectangle face of crossbeam 6, the installation of color mark sensor 5 The long strip through hole of two screwed holes and crossbeam 6 on face is respectively with two screw attachments；

Two described prewarning units 4 are all fixed on the disc type tool magazine 1 of disc type manipulator tool magazine, two early warning lists After member 4 is fixed, the axis of the light transmitting terminal of the color mark sensor 5 of one of prewarning unit 4 simultaneously with disc type tool magazine 1 Axis and close to tool change position and it is in the axis of the broach shell on the right side of tool change position and intersects vertically, another prewarning unit 4 The axis of the light transmitting terminal of color mark sensor 5 with the axis of disc type tool magazine 1 and close to tool change position and is in tool changing position simultaneously The axis of the broach shell in the left side put intersects vertically.

The alarm 7 of described prewarning unit 4 is by signalling generator 10,24V dc sources 11, alarm switch 12, relay 13rd, casing 14, connecting terminal block 15 are formed, and casing 14 is the shell structure part of cuboid, and four fillet welding of casing 14 are connected to Four small square plates, there is a manhole in each square plate, the top surface of casing 14 is equipped with signalling generator 10, and the side of casing 14 is equipped with Connecting terminal block 15, connecting terminal block 15 have seven binding posts, and one jiao of the top surface of casing 14 is equipped with alarm switch 12,24V dc sources 11 and relay 13 are fixed on the inside of casing 14；

Two power lines of described 24V dc sources 11 are connected into by two binding posts of connecting terminal block 15 to be had The circuit of 220V AC voltage, the terminals that the power line negative pole of color mark sensor 5 passes through described connecting terminal block 15 Son is connected on the com ends of described 24V dc sources 11, the wiring that the positive pole of color mark sensor 5 passes through connecting terminal block 15 Terminal is connected on the+24V direct current pressure sides of 24V dc sources 11, and the output line of color mark sensor 5 passes through connecting terminal block 15 binding post is connected on a pole of signalling generator 10, and another pole of signalling generator 10 connects the com ends of 24V dc sources 11, report The power line that alert device switch 12 is connected on 24V dc sources 11 is connected into the circuit of the circuit with 220V AC voltage, Alarm switch 12 is parallel with the normally opened contact of relay 13, and the two poles of the earth of the coil of relay 13 pass through connecting terminal block 15 respectively Two binding posts access disc type manipulator tool magazine where Digit Control Machine Tool digital control system 18.

Technical basis of the present utility model：

The structure of disc type manipulator tool magazine can be described as follows：

Disc type manipulator tool magazine is that tool magazine system is a kind of typical tool magazine system, and of the present utility model tested System, disc type manipulator tool magazine include storage two functions of knife and tool changing, and the programme-control by being worked out in digital control system.Disk Formula manipulator tool magazine has complicated mechanical structure in itself, but is described for this patent is convenient, see Fig. 1, Figure 10, Figure 11, Disc type manipulator tool magazine mainly includes 16 two components of disc type tool magazine 1 and manipulator.Refering to Fig. 1, disc type tool magazine 1 is used for Storage cutter position is provided, each disc type tool magazine 1 provides n storage cutter position, and each cutter position that stores up has a broach shell, that is, there are n Broach shell, rotated under the control for the program that broach shell can be worked out in digital control system around the center of circle of disc type tool magazine 1, i.e., broach shell is in disk Position on the circumference of formula tool magazine 1 is variable, and palette knife set is fixed in its axial direction.Refering to Fig. 4, each adjacent broach shell with Angle between the line in the center of circle of disc type tool magazine 1 is α, and α is equal to 360 ° divided by storage cutter position quantity n, can in each broach shell A handle of a knife 2 is stored, a cutter 3, the program that disc type tool magazine 1 can be worked out in digital control system can be installed on each handle of a knife 2 Control under, it is correct to select cutter simultaneously to be positioned, i.e., under the control for the program worked out in digital control system, handle of a knife 2 to be changed And its cutter 3 of institute's band turns to around the center of circle of disc type tool magazine 1 indentation, there of the shell of disc type tool magazine 1 with broach shell, afterwards Broach shell is rotated by 90 ° with the cutter 3 of handle of a knife 2 and its institute's band around the trunnion axis for being fixed on broach shell one end, makes broach shell and with handle of a knife 2 And its cutter 3 of institute's band is in the state shown in Figure 10, that is, is in tool change position.Refering to Figure 10 and Figure 11, manipulator 16 is Respectively there is a claw at one centrosymmetric component, both ends, for tool changing, the control for the program that it can be worked out in digital control system Under, driven by motor and transmission mechanism, realize movement vertically and the rotation of the symmetrical centre around its centrosymmetric structure, Manipulator 16 can will be in tool change position by the combination of above-mentioned action handle of a knife 2 and its cutter 3 of institute's band in disc type tool magazine 1 Exchanged with the handle of a knife 2 and its cutter 3 of institute's band being in main shaft of numerical control machine tool position 17.

The application scenario of disc type manipulator tool magazine：The disc type tool magazine 1 of disc type manipulator tool magazine stores up cutter position quantity n It is smaller, number of cutters can be accommodated 20~30, so, disc type manipulator tool magazine is typically used in small size vertical machining center etc. On miniature numerical control lathe.Refering to Figure 11, after disc type manipulator tool magazine is arranged on Digit Control Machine Tool, treated when manipulator 16 is in During machine state, manipulator 16 is parallel with the end face of disc type tool magazine 1, i.e., manipulator 16 is in solid line position in Figure 11, works as manipulator 16 in when grabbing knife-like state, and manipulator 16 and the angle of the end face of disc type tool magazine 1 are γ, i.e., manipulator 16 is in dotted line in Figure 11 Position, after installation, the position relationship of disc type manipulator tool magazine and main shaft, γ is equal to 60 ° or 75 ° or 90 °, defines γ This angle is tool changing angle.

The tool changing sequence of movement of disc type manipulator tool magazine can be described as follows：

(1) before tool changing：Manipulator 16 is in holding state, i.e. manipulator 16 is parallel with the end face of disc type tool magazine 1；Number Control lathe main shaft orientation to tool changing highly；Handle of a knife 2 to be changed and its cutter 3 of institute's band are as broach shell is around disc type tool magazine 1 The center of circle turns to the indentation, there of the shell of disc type tool magazine 1 from the position that it is in, and broach shell is with handle of a knife 2 and its institute's band afterwards Cutter 3 is rotated by 90 ° around the trunnion axis for being fixed on broach shell one end, broach shell is in tool changing position with the cutter 3 of handle of a knife 2 and its institute's band Put.

(2) tool changing is started：Using Figure 11 as visual angle, manipulator 16 turns clockwise around the symmetrical centre of its centrosymmetric structure Tool changing angle γ, it is in manipulator 16 and grabs knife-like state, now, a claw of manipulator 16 is caught in disc type tool magazine 1 Handle of a knife 2, another claw catches the handle of a knife 2 in main shaft；Afterwards, using Figure 10 as visual angle, manipulator 16 moves vertically downward Drawn sword, drive the cutter 3 of the handle of a knife 2 in disc type tool magazine 1 and its institute's band to be extracted from broach shell, drive the knife in main shaft The cutter 3 of handle 2 and its institute's band is extracted from main shaft；Afterwards, using Figure 11 as visual angle, manipulator 16 is around the symmetrical of its centrosymmetric structure The cutter 3 of center dextrorotation turnback, two handle of a knifes 2 and its institute's band exchanges position；Afterwards, using Figure 10 as visual angle, manipulator The 16 insertion main shafts of cutter 3 for carrying out slotting tool, driving the handle of a knife 2 and its institute's band in a claw mobile vertically upward, drive another The broach shell that the cutter 3 of handle of a knife 2 and its institute's band in individual claw is inserted on disc type tool magazine 1.

(3) after tool changing：Using Figure 11 as visual angle, symmetrical centre rotate counterclockwise of the manipulator 16 around its centrosymmetric structure γ, manipulator 16 are in holding state；The broach shell of tool change position is in the cutter 3 of handle of a knife 2 and its institute's band around being fixed on knife The trunnion axis of set one end is rotated by 90 °, and broach shell is in horizontal level with the cutter 3 of handle of a knife 2 and its institute's band, that is, is located in Fig. 1 It is in the state of the handle of a knife 2 of the indentation, there of the shell of disc type tool magazine 1 and its cutter 3 of institute's band.Tool changing action is completed.

Disc type manipulator tool magazine is as known technology, and concrete structure, action at this to disc type manipulator tool magazine are not Repeat.

In the present embodiment, it is situated between by taking the BT40 disc type manipulator tool magazines of Dalian Gaojin Numerical Control Group Corp., Ltd.'s production as an example Continue, for storage cutter position quantity n equal to 24, the angle between the line in the center of circle of each adjacent broach shell and disc type tool magazine 1 is 15 ° (360 ° divided by 24), tool changing angle γ are 75 °.In embodiment, applied with the disc type manipulator tool magazine and produced in Dalian Machine Tool VDF1000E type machining centers on exemplified by.

Refering to Fig. 2, positioning of the handle of a knife 2 in the broach shell of disc type tool magazine 1 is real by the blind rivet 9 being connected on handle of a knife 2 Existing, when handle of a knife 2 is in broach shell, the claw in broach shell catches one end of blind rivet 9 to realize fixation of the handle of a knife 2 in broach shell, handle of a knife 2 It is thread connection with coupling for blind rivet 9, and thread connection easily loosens, when the thread connection of handle of a knife 2 and blind rivet 9 loosens, Handle of a knife 2 can become big with the distance between blind rivet 9 Z, and the connection of handle of a knife 2 and broach shell is realized by the blind rivet 9 of the top of handle of a knife 2 , broach shell is fixed in its axial direction, so, relative to broach shell, handle of a knife 2 will produce certain displacement, on handle of a knife 2 Annular groove will also produce certain displacement, less gap be located due to broach shell and blind rivet 9, so this displacement is less than or waited It is a large amount of in the distance between handle of a knife 2 and blind rivet 9 Z change.Specifically, changed when broach shell is in the cutter 3 of handle of a knife 2 and its institute's band During cutter position, handle of a knife 2 is in vertical position, and handle of a knife 2 is vertical to be in gravitational field, and relative to broach shell, handle of a knife 2 will produce downwards Displacement, the change that this displacement is equal to the distance between handle of a knife 2 and blind rivet 9 Z is a large amount of；When broach shell is with handle of a knife 2 and its institute's band When cutter 3 is in the other positions except tool change position, handle of a knife 2 is horizontal, now, refering to Fig. 2, due to handle of a knife 2 and knife The contact surface of set is the circular conical surface above the annular groove on handle of a knife 2, so, although handle of a knife 2 is horizontal, in Action of Gravity Field Under, handle of a knife 2 can also skid off certain displacement from broach shell to outside broach shell, because reason, this displacement such as friction are less than or equal to knife The distance between handle 2 and blind rivet 9 Z change is a large amount of, and this displacement is a value range.

The thread connection of handle of a knife 2 and blind rivet 9 loosen cause disc type manipulator tool magazine swaging clamp, to fall knife failure interpretable such as Under：In normal work, when broach shell is in tool change position with the cutter 3 of handle of a knife 2 and its institute's band, the machine of disc type manipulator tool magazine When tool hand 16 carries out grabbing knife, a claw of manipulator 16 is caught in the annular groove on handle of a knife 2, theoretically, the claw of manipulator 16 Should just be stuck in the center of the annular groove of handle of a knife 2, i.e., the top edge of the upper surface of the claw of manipulator 16 to the annular groove of handle of a knife 2 it Between distance it is equal to the distance between the lower edge of annular groove of handle of a knife 2 with the lower surface of the claw of manipulator 16, and in fact, Due to installing reason, when grabbing knife, the distance between upper surface of the claw of manipulator 16 to the top edge of annular groove of handle of a knife 2 and machine The lower surface of the claw of tool hand 16 will not be essentially equal to the distance between the lower edge of annular groove of handle of a knife 2, but does not influence machine The claw of tool hand 16 normally grabs knife, because the thickness of the claw of manipulator 16 is slightly smaller than the width of the annular groove of handle of a knife 2.In handle of a knife 2 In the state of being loosened with the thread connection of blind rivet 9, when broach shell is in tool change position with the cutter 3 of handle of a knife 2 and its institute's band, handle of a knife 2 is in vertical position, and handle of a knife 2 is vertical to be in gravitational field, and relative to broach shell, handle of a knife 2 will produce downward displacement, this position Move be equal to the distance between handle of a knife 2 and blind rivet 9 Z change it is a large amount of, because the thickness of the claw of manipulator 16 is slightly smaller than the ring of handle of a knife 2 The width of groove, so, the thread connection of handle of a knife 2 and blind rivet 9 loosens, when causing the downward displacement of the annular groove on handle of a knife 2 smaller, The claw for not influenceing manipulator 16 normally grabs knife, and still, the thread connection of handle of a knife 2 and blind rivet 9 loosens, and causes the ring on handle of a knife 2 When the downward displacement of groove is larger, height when grabbing knife due to manipulator 16 is changeless, so, the claw of manipulator 16 It can not can completely be caught in the annular groove of handle of a knife 2 or the annular groove of handle of a knife 2 can not be caught in completely.When the claw of manipulator 16 can not block completely When entering the annular groove of handle of a knife 2, manipulator 16 can normally draw sword, and still, the cutter 3 of handle of a knife 2 and its institute's band is pulled out it from broach shell Afterwards, because the claw of manipulator 16 is not caught in the annular groove of handle of a knife 2 completely, so it is not tight to grab knife, knife failure is fallen；Work as machinery When the claw of hand 16 can not be caught in the annular groove of handle of a knife 2 completely, manipulator 16 will not normally draw sword, and manipulator 16 catches handle of a knife 2 Other positions can not perform next action, and swaging clamp failure occurs, now, the motor continuous running of driving mechanical hand 16, due to Load is too big and causes motor to burn out.That is, it is not once the thread connection loosening of handle of a knife 2 and blind rivet 9, disc type manipulator knife Storehouse just occurs swaging clamp, falls knife failure, when the thread connection of only handle of a knife 2 and blind rivet 9 is loosened to a certain extent, disc type machine Tool hand tool magazine just occurs swaging clamp or falls knife failure, and practice also demonstrates this point.

To sum up, the swaging clamp of disc type manipulator tool magazine, the early warning for falling knife failure can be by detecting the spiral shell of handle of a knife 2 and blind rivet 9 Line couples the degree loosened and realized, and the degree that the thread connection of handle of a knife 2 and blind rivet 9 loosens is reflected in the displacement of handle of a knife 2 In size, due to the limitation of detectable position on handle of a knife 2, the utility model selects the color of Shanghai giant dragon Electronics Co., Ltd. Mark sensor detects to realize, model OGA types.Color mark sensor is sent modulation light, received using light transmitting record principle The reflected light of testee, and the presence or absence of different colors, detection object is distinguished according to the power for receiving optical signal, point Resolution is high, can reach 1mm, and color mark sensor can adjust detecting distance within the specific limits, and detecting distance is color mark sensor The ultimate range of object can be detected the presence of, the object in the range of detecting distance, color mark sensor can not detect.Colour code The main part of sensor is a cuboid, optical transmitting set of the end face of cuboid equipped with cylinder, claims this cylindrical light The end face of transmitter is the light transmitting terminal of color mark sensor, and a side of cuboid is machined with two screwed holes for installing, This face is referred to as the mounting surface of color mark sensor, and cuboid also has a side equipped with the knob for adjusting or setting detecting distance, claimed This face is the setting face of color mark sensor.Need outside to supply 24V DC voltages when color mark sensor works, and 24V height can be exported Level signal or 0V low level signals.Color mark sensor and external interface are the cable for including three lines, color mark sensor with Single line is output line in three lines of external interface cable, for exporting 24V high level signals or 0V low levels letter Number, both threads are power line, and sub-power source line both positive and negative polarity, i.e. color mark sensor have power line positive pole and power line negative pole, both positive and negative polarity Between need to supply 24V DC voltages, so as to give color mark sensor power supply.When color mark sensor works, the light transmitting terminal of color mark sensor The face object to be detected, after switching on power, if the object to be detected is in the detecting distance of color mark sensor, i.e. color Mark sensor detects that color mark sensor output line output signal is 0V low level signals, if to examine with the presence of object The object of survey is not located in the detecting distance of color mark sensor, i.e., color mark sensor detects that no object is present, colour code sensing Device output line output signal is 24V high level signals, it is possible to the letter according to the output of color mark sensor output line Number determine whether that object is in the detecting distance of color mark sensor for 0V low level signals or 24V high level signals.

Cleaning Principle of the present utility model is as follows：

It is demonstrated experimentally that there is swaging clamp because the thread connection of handle of a knife 2 and blind rivet 9 loosens or fallen in disc type manipulator tool magazine During knife failure, the thread connection of handle of a knife 2 and blind rivet 9 loosens the shaft shoulder for causing least displacement caused by handle of a knife 2 to be much smaller than lower edge The length h on the face of cylinder.In other words, the thread connection of handle of a knife 2 and blind rivet 9, which loosens to be in, can cause disc type manipulator tool magazine card Knife or fall knife failure generation minimum degree when, handle of a knife 2 produce displacement much smaller than lower edge the shaft shoulder face of cylinder length h. So can be using the shaft shoulder face of cylinder of the annular groove lower edge of handle of a knife 2 as object to be detected, without causing color mark sensor 5 to miss Survey.So in the utility model, the shaft shoulder face of cylinder for selecting the annular groove lower edge of handle of a knife 2 is object to be detected, sets colour code to pass During sensor 5, after the fixed color mark sensor 5 of installation, the shaft shoulder face of cylinder that can just detect the annular groove lower edge of handle of a knife 2 is color Mark the detecting distance of sensor 5, during installation, the shaft shoulder of the annular groove lower edge of the light transmitting terminal face handle of a knife 2 of color mark sensor 5 The face of cylinder, now, there are the shaft shoulder face of cylinder of the annular groove lower edge of handle of a knife 2, color mark sensor in the detecting distance of color mark sensor 5 5 output line output signals are 0V low level signals；No matter handle of a knife 2 is horizontal or upright position, when handle of a knife 2 When loosening to a certain extent with the thread connection of blind rivet 9, relative to broach shell, handle of a knife 2 can produce certain displacement, and this is displaced to When to a certain degree, the shaft shoulder cylinder of the light transmitting terminal of the color mark sensor 5 being fixed from the annular groove lower edge of face handle of a knife 2 Face is changed into the annular groove face of cylinder of face handle of a knife 2, the shaft shoulder face of cylinder of the annular groove lower edge of handle of a knife 2 and the annular groove face of cylinder of handle of a knife 2 Certain distance be present, so, beyond the detecting distance of color mark sensor 5, i.e., no any object is in color mark sensor 5 In detecting distance, i.e., color mark sensor 5 detects that no object is present, and the output line output signal of color mark sensor 5 is that 24V is high Level signal.Whether indirect detection handle of a knife 2 generates a certain degree of displacement to the utility model in this way.

Based on above-mentioned principle, utility model disc type manipulator tool magazine swaging clamp falls knife fault pre-alarming device, the utility model The degree of the displacement of handle of a knife 2 is detected using color mark sensor 5, reflects that the thread connection of handle of a knife 2 and blind rivet 9 loosens indirectly Degree, so as to realize that disc type manipulator tool magazine swaging clamp falls the early warning of knife failure.Handle of a knife 2 is in upright position, that is, is in and changes During cutter position, Detection results are optimal, but install the insufficient space of the device of color mark sensor 5, so, described in the utility model When disc type manipulator tool magazine swaging clamp falls the work of knife fault pre-alarming device, horizontal position is in by the handle of a knife 2 that color mark sensor 5 detects Put, be described below in detail.

Refering to shown in Fig. 1 and Fig. 4, the utility model is made up of two prewarning units 4, and two prewarning units 4 are all fixed on On the disc type tool magazine 1 of disc type manipulator tool magazine, wherein, a prewarning unit 4 is arranged on disc type tool magazine 1 close to tool changing Position and it is near the broach shell on the right side of tool change position, another prewarning unit 4 is arranged on disc type tool magazine 1 close to tool changing Position and it is near the broach shell in the left side of tool change position.Before tool changing, the cutter 3 of handle of a knife 2 to be changed and its institute's band needs As broach shell turns to around the center of circle of disc type tool magazine 1 indentation, there of the shell of disc type tool magazine 1 from the position that it is in, no matter Broach shell is rotate counterclockwise around the center of circle of disc type tool magazine 1 or turns clockwise, and it will be by two close to tool change position Broach shell position in a position, i.e., broach shell around the center of circle of disc type tool magazine 1 be rotate counterclockwise when, handle of a knife 2 to be changed And its cutter 3 of institute's band will be by close to tool change position and being in the position of the broach shell in the left side of tool change position, broach shell is around circle The center of circle of disc tool magazine 1 is when turning clockwise, and the cutter 3 of handle of a knife 2 to be changed and its institute's band will be by close to tool change position And the position of the broach shell on the right side of tool change position is in, at the two positions, broach shell and handle of a knife 2 are horizontal, in weight Under power effect, handle of a knife 2 can also skid off certain displacement from broach shell to outside broach shell, because reason, this displacement such as friction are less than knife The distance between handle 2 and blind rivet 9 Z change is a large amount of, i.e. the outside displacement of handle of a knife 2 is not it is obvious that still also can be by two Two prewarning units 4 detect the degree of the outside displacement of handle of a knife 2 respectively near close to the broach shell of tool change position.In this peace Benefit under dress mode is：The normal work of disc type manipulator tool magazine is had substantially no effect on, easily installation.

Refering to Fig. 3, prewarning unit 4 is made up of color mark sensor 5, crossbeam 6, alarm 7, support 8.

Refering to Fig. 7 and Fig. 8, wherein, alarm 7 is by signalling generator 10,24V dc sources 11, alarm switch 12, relay 13rd, casing 14, connecting terminal block 15 form.Refering to Fig. 7, from structure, described casing 14 is the housing knot of cuboid Component, 4 fillet welding of casing 14 are connected to 4 small square plates, have 1 manhole to be used to install fixed whole report in each square plate Alert device 7, the top surface of casing 14 are equipped with signalling generator 10, and side is equipped with connecting terminal block 15, and connecting terminal block 15 has 7 wiring Terminal, it is respectively used to connect 220V AC voltage, the output line of color mark sensor 5 and power line, the coil of relay 13, case One jiao of the top surface of body 14 is equipped with alarm switch 12.24V dc sources 11, relay 13 are fixed on the inside of casing 14.

Refering to Fig. 8, alarm 7 connection circuit and its with outside connection circuit it is as follows：The circuit of alarm 7 is by 24V Dc source 11 is powered, and 24V dc sources 11 are powered by 220V alternating current circuits, i.e. the two of 24V dc sources 11 piece power line leads to Two binding posts for crossing connecting terminal block 15 are connected into the circuit with 220V AC voltage, and the power line of color mark sensor 5 is born Pole is connected on the com ends of 24V dc sources 11, the com ends of 24V dc sources 11 by a binding post of connecting terminal block 15 For 0V DC voltages, i.e., 24V electrical potential difference, colour code between the com ends of 24V dc sources 11 and+24V direct current pressure sides be present The positive pole of sensor 5 is connected on the+24V direct current pressure sides of 24V dc sources 11 by a binding post of connecting terminal block 15, The output line of color mark sensor 5 connects a pole of signalling generator 10, signalling generator by a binding post of connecting terminal block 15 10 another pole is connected on the com ends of 24V dc sources 11.Alarm switch 12 is connected on a power supply of 24V dc sources 11 Line is connected into the circuit of the circuit with 220V AC voltage, and it is both the hand switch of alarm 7, and prewarning unit 4 Hand switch, when need manually use prewarning unit 4 when, alarm switch 12 is closed, it is not necessary to when it is disconnected, operation side Just.In addition, alarm switch 12 is parallel with the normally opened contact of relay 13, the two poles of the earth of the coil of relay 13 pass through wiring respectively The digital control system 18 of Digit Control Machine Tool where 2 binding posts access disc type manipulator tool magazine of terminal block 15.

Refering to Fig. 3, in prewarning unit 4, support 8 is the support member of whole prewarning unit 4, and the base of support 8 is cuboid Flat board, there are four manholes and four screwed holes on the base of support 8, the both ends on the side on the right side of the base of support 8 respectively have One cuboid column, two cuboid columns are vertical with the base of support 8, respectively have a strip to lead on two cuboid columns Hole.Crossbeam 6 is a rectangular parallelepiped structure part, there is a long strip through hole among crossbeam 6, and the both ends of crossbeam 6 respectively have a circle to lead to Hole.44 screwed holes of four manholes and support 8 in four small square plates of the casing 14 of alarm 7 are respectively with four Screw attachment, alarm 7 is set to be fixed on the base of support 8.Two of two manholes on crossbeam 6 and support 8 are rectangular Two long strip through hole on body column are coupled with two groups of bolt and nuts respectively, crossbeam 6 is fixed on the cuboid column of support 8 On.The mounting surface of color mark sensor 5 contacts with the rectangle face of crossbeam 6, two on the mounting surface of color mark sensor 5 screwed hole Long strip through hole with crossbeam 6 makes color mark sensor 5 be fixed on a crossbeam 6 respectively with two screw attachments, after fixed, color Mark the light transmitting terminal face handle of a knife 2 of sensor 5.

Refering to Fig. 4, four manholes on support 8 are matched somebody with somebody with 44 on disc type tool magazine 1 makees hole respectively with 44 Screw attachment, prewarning unit 4 is set to be fixed on disc type tool magazine 1.After two prewarning units 4 are fixed, installed in disc type knife Sent out close to the light of tool change position and the color mark sensor 5 for the prewarning unit 4 being near the broach shell on the right side of tool change position in storehouse 1 Penetrate the axis at end and with the axis of disc type tool magazine 1 and close to tool change position and be in the broach shell on the right side of tool change position simultaneously Axis intersects vertically, and close to tool change position and is in installed in disc type tool magazine 1 near the broach shell in the left side of tool change position The axis of the light transmitting terminal of the color mark sensor 5 of prewarning unit 4 simultaneously with the axis of disc type tool magazine 1 and close to tool change position and The axis for being in the broach shell in the left side of tool change position intersects vertically, i.e., the axis and lead of the light transmitting terminal of two color mark sensors 5 The angle of vertical line is equal to α, and α is equal to 360 ° divided by storage cutter position quantity n.

It is demonstrated experimentally that the keyway on the shaft shoulder for the annular groove lower edge that can also avoid handle of a knife 2, i.e. color mark sensor are so installed 5 light transmitting terminal will not answer the keyway on the shaft shoulder of the annular groove lower edge of face handle of a knife 2 and produce erroneous judgement.

The course of work of the present utility model：

Refering to shown in Fig. 9；

(1), first in use, needing to install two prewarning units on the disc type tool magazine 1 of disc type manipulator tool magazine 4, determine the installation site of two prewarning units 4：After two prewarning units 4 are fixed, installed in disc type tool magazine 1 close to tool changing The axis of the light transmitting terminal of the color mark sensor 5 of position and the prewarning unit 4 being near the broach shell on the right side of tool change position With the axis of disc type tool magazine 1 and close to tool change position and it is in the vertical phase of axis of the broach shell on the right side of tool change position simultaneously Hand over, installed in disc type tool magazine 1 close to tool change position and the prewarning unit 4 that is near the broach shell in the left side of tool change position The axis of the light transmitting terminal of color mark sensor 5 with the axis of disc type tool magazine 1 and close to tool change position and is in tool changing position simultaneously The axis of the broach shell in the left side put intersects vertically.

(2), first in use, it is necessary to debugged to two prewarning units 4 after two prewarning units 4 are installed, Because parameter is different, 22 prewarning units 4 need to debug respectively, are specially：

1) as shown in fig.4, adjustment and installation close to tool change position and is in the right side of tool change position in disc type tool magazine 1 The light transmitting terminal of the color mark sensor 5 of prewarning unit 4 near broach shell is to close to tool change position and being in the right side of tool change position The distance L on the shaft shoulder face of cylinder of the annular groove lower edge of the handle of a knife 2 in the broach shell of side, that is, determine distance L size, specific method For：The setting face of color mark sensor 5 is debugged, determines the detecting distance of color mark sensor 5, unclamps the mounting surface of color mark sensor 5 On two screwed holes and crossbeam 6 long strip through hole between two screws, long strip through hole of the color mark sensor 5 along crossbeam 6 It is mobile so that distance L is equal to the detecting distance of color mark sensor 5, then tightens two spiral shells on the mounting surface of color mark sensor 5 Two screws between the long strip through hole of pit and crossbeam 6 are fixed.With same method adjustment and installation in disc type tool magazine 1 Launch close to the light of tool change position and the color mark sensor 5 for the prewarning unit 4 being near the broach shell in the left side of tool change position Hold the shaft shoulder face of cylinder of the annular groove lower edge close to tool change position and the handle of a knife 2 being in the broach shell in the left side of tool change position Distance X, that is, determine distance X size；

2) as shown in fig.5, adjustment and installation close to tool change position and is in the right side of tool change position in disc type tool magazine 1 The axis of the light transmitting terminal of the color mark sensor 5 of prewarning unit 4 near broach shell is to close to tool change position and being in tool changing position The distance H of the annular groove lower edge of handle of a knife 2 in the broach shell on the right side put, that is, determine distance H size, and specific method is：Unscrew The thread connection of handle of a knife 2 and blind rivet 9 so that the distance between handle of a knife 2 and blind rivet 9 Z are 0.1mm, and handle of a knife 2 then is put into broach shell In, run disc type manipulator tool magazine so that broach shell turns clockwise around the center of circle of disc type tool magazine 1, and observes disc type Whether manipulator tool magazine occurs swaging clamp, falls knife failure, if do not occurred, unscrews the thread connection of handle of a knife 2 and blind rivet 9 again, makes The distance between handle of a knife 2 and blind rivet 9 Z increase 0.1mm again, so repeatedly, until disc type manipulator tool magazine generation swaging clamp or Person falls knife failure, then runs this handle of a knife 2 to close to tool change position and being in the position of the broach shell on the right side of tool change position, Unscrew 22 groups between two long strip through hole on 22 cuboid columns of two manholes and support 8 on crossbeam 6 Bolt and nut, two cuboids of the crossbeam 6 along 22 long strip through hole on two cuboid columns of support 8 from support 8 The top of column to top is moved, until signalling generator 10 just alarms, the now axis of the light transmitting terminal of color mark sensor 5 Determined to close to the distance H of tool change position and the annular groove lower edge for the handle of a knife 2 being in the broach shell on the right side of tool change position, then Tighten two groups of bolts between 2 long strip through hole on two cuboid columns of two manholes and support 8 on crossbeam 6 Nut is fixed.As shown in fig.6, close to tool change position and it is in disc type tool magazine 1 with same method adjustment and installation The axis of the light transmitting terminal of the color mark sensor 5 of prewarning unit 4 near the broach shell in the left side of tool change position is to close to tool changing The distance Y of the annular groove lower edge of position and the handle of a knife 2 being in the broach shell in the left side of tool change position, that is, distance Y size is determined, Now run disc type manipulator tool magazine, it should so that center of circle rotate counterclockwise of the broach shell around disc type tool magazine 1；

(3), after two prewarning units 4 of installation and debugging, specific implementation detection work, there are two kinds of working methods, manually Pattern and automatic mode, wherein, automatic mode is in the digital control system according to the Digit Control Machine Tool where disc type manipulator tool magazine Numerical control program perform action, the specific work process of both of which is as follows：

1) manual mode：The original numerical control program of instruction operation digital control system (is each equipped with disc type manipulator knife one by one What the Digit Control Machine Tool in storehouse had, for controlling the program of disc type manipulator tool magazine), handle of a knife 2 to be changed is reached close to tool changing position Put and be in the position of the broach shell on the right side of tool change position or reach close to tool change position and be in the left side of tool change position The position of broach shell is all to reach test position, when handle of a knife 2 to be changed is reached close to tool change position and is in the right side of tool change position Broach shell position when, the instruction in digital control system out of service, press installed in disc type tool magazine 1 close to tool change position and place The alarm switch 12 of prewarning unit 4 near the broach shell on the right side of tool change position, i.e. alarm switch 12 close, early warning Unit 4 is started working, and whether observation signalling generator 10 alarms, if signalling generator 10 is alarmed, alarm switch 12 is closed, from disk Handle of a knife 2 to be changed is removed on formula manipulator tool magazine, tightens the thread connection of handle of a knife 2 and blind rivet 9, then fills handle of a knife 2 to be changed Enter disc type manipulator tool magazine, if signalling generator 10 is not alarmed, close alarm switch 12.When handle of a knife 2 to be changed reaches tightly Adjacent tool change position and when being in the position of the broach shell in the left side of tool change position, the instruction in digital control system out of service, presses peace Alarm mounted in disc type tool magazine 1 close to tool change position and the prewarning unit 4 being near the broach shell in the left side of tool change position Device switch 12, i.e. alarm switch 12 is closed, and prewarning unit 4 is started working, and whether observation signalling generator 10 alarms, if sender Device 10 is alarmed, then closes alarm switch 12, handle of a knife 2 to be changed is removed from disc type manipulator tool magazine, tightens handle of a knife 2 with drawing The thread connection of nail 9, then loads disc type manipulator tool magazine by handle of a knife 2 to be changed, if signalling generator 10 is not alarmed, closes Close alarm switch 12.Repeat the above steps, to detect next handle of a knife 2 to be changed, until having detected all knives to be changed Handle 2.

2) automatic mode：First have to, according to following flow numerical programming program, then run digital control system, load this Numerical control program, following actions are performed under the control of numerical control program automatically, when handle of a knife 2 to be changed is reached close to tool change position and place At the position of the broach shell on the right side of tool change position, the pause of disc type manipulator tool magazine action, installed in disc type tool magazine 1 close to The normally opened contact adhesive of tool change position and the relay 13 for the prewarning unit 4 being near the broach shell on the right side of tool change position, If signalling generator 10 is alarmed, stop the tool changing action of disc type manipulator tool magazine, until human intervention digital control system, relay 13 normally opened contact just disconnects, and the alarm of signalling generator 10 stops, if signalling generator 10 is not alarmed, being reached in handle of a knife 2 to be changed After test position 0.5 second, the normally opened contact of relay 13 disconnects, and disc type manipulator tool magazine continues executing with tool changing action, suitable Profit completes tool changing.When handle of a knife 2 to be changed reaches the position of the broach shell close to tool change position and the left side for being in tool change position, circle The pause of disk-type mechanical hand tool magazine acts, and close to tool change position and is in the knife in the left side of tool change position installed in disc type tool magazine 1 The normally opened contact adhesive of the relay 13 of prewarning unit 4 near set, if signalling generator 10 is alarmed, stop disc type machinery The tool changing action of hand tool magazine, until human intervention digital control system, the normally opened contact of relay 13 just disconnect, the alarm of signalling generator 10 Stop, if signalling generator 10 is not alarmed, after handle of a knife 2 to be changed reaches test position 0.5 second, the normally opened of relay 13 touches Point disconnects, and disc type manipulator tool magazine continues executing with tool changing action, smoothly completes tool changing.

Because for different digital control systems, the numerical control program worked out is different, so the utility model is not protected Above-mentioned numerical control program, but it is to determine that digital control system can work out above-mentioned numerical control program and the utility model is controlled, and can lead to Cross to program and realize two coordinate synchronization of prewarning unit 4 work.

In specific implementation process, the device in embodiment can be accepted or rejected as needed or modification, in other words, this practicality It is new to have other embodiment：

1. the model of color mark sensor selected by can select different types according to the difference of disc type manipulator tool magazine Number；

2. the protection devices such as some over-current and -load relays are added in the circuit of alarm；

But these changes do not change whole structure.

Because the utility model is that function is realized in detection by being in the displacement of gravitational field to handle of a knife, so, it is needed Use and be arranged in disc type manipulator tool magazine after Digit Control Machine Tool at tool change position in the most lower of disc type manipulator tool magazine End, and in addition to the broach shell of tool change position, other broach shells are under the occasion of horizontal level, the work worked out in the utility model Flow be simply possible to use in tool changing, from disc type manipulator tool magazine to empty main shaft dress knife when, from main shaft give disc type manipulator tool magazine dress During knife, it is in the broach shell of tool change position and does not have handle of a knife, this practicality can not be used by the workflow worked out in the utility model It is new.

Claims (1)

1. a kind of disc type manipulator tool magazine swaging clamp falls knife fault pre-alarming device, it is characterised in that：It is by two prewarning units (4) Composition；

Described prewarning unit (4) is made up of color mark sensor (5), crossbeam (6), alarm (7), support (8)；Support (8) Base is cuboid flat board, there is four manholes and four screwed holes, the right side of the base of support (8) on the base of support (8) Respectively there is a cuboid column at the both ends on the side of side, and two cuboid columns are vertical with the base of support (8), and two cuboids are stood Respectively there is a long strip through hole on post；Crossbeam (6) is a rectangular parallelepiped structure part, has a long strip through hole, crossbeam among crossbeam (6) (6) respectively there is a manhole at both ends, four manholes in four small square plates of the casing (14) of alarm (7) and branch For four screwed holes of frame (8) respectively with four screw attachments, two manholes on crossbeam (6) are two long with support (8) Two long strip through hole on cube column are coupled with two groups of bolt and nuts respectively, mounting surface and the crossbeam (6) of color mark sensor (5) The contact of rectangle face, the long strip through hole of two screwed holes on the mounting surface of color mark sensor (5) and crossbeam (6) is respectively with two Individual screw attachment；

Two described prewarning units (4) are all fixed on the disc type tool magazine (1) of disc type manipulator tool magazine, two early warning lists After first (4) are fixed, the axis of the light transmitting terminal of the color mark sensor (5) of one of prewarning unit (4) while and disc type The axis of tool magazine (1) and close to tool change position and it is in the axis of the broach shell on the right side of tool change position and intersects vertically, another is pre- The axis of the light transmitting terminal of the color mark sensor (5) of alert unit (4) is simultaneously with the axis of disc type tool magazine (1) and close to tool changing position The axis put and be in the broach shell in the left side of tool change position intersects vertically；

The alarm (7) of described prewarning unit (4) by signalling generator (10), 24V dc sources (11), alarm switch (12), Relay (13), casing (14), connecting terminal block (15) composition, casing (14) be cuboid shell structure part, casing (14) four fillet welding are connected to four small square plates, have a manhole in each square plate, the top surface of casing (14) is equipped with hair Device (10) is interrogated, casing (14) side is equipped with connecting terminal block (15), and connecting terminal block (15) has seven binding posts, casing (14) one jiao of top surface is equipped with alarm switch (12), and 24V dc sources (11) and relay (13) are fixed on casing (14) Inside；

Two power lines of described 24V dc sources (11) are connected into by two binding posts of connecting terminal block (15) to be had The circuit of 220V AC voltage, the power line negative pole of color mark sensor (5) are connect by one of described connecting terminal block (15) Line terminals are connected on the com ends of described 24V dc sources (11), and the positive pole of color mark sensor (5) passes through connecting terminal block (15) A binding post be connected on the+24V direct current pressure sides of 24V dc sources (11), the output line of color mark sensor (5) leads to A binding post for crossing connecting terminal block (15) is connected on a pole of signalling generator (10), and it is straight that another pole of signalling generator (10) meets 24V The com ends of power supply (11) are flowed, the power line that alarm switch (12) is connected on 24V dc sources (11) is connected into 220V In the circuit of the circuit of alternating voltage, alarm switch (12) is parallel with the normally opened contact of relay (13), relay (13) The numerical control that the two poles of the earth of coil are accessed where disc type manipulator tool magazine by two binding posts of connecting terminal block (15) respectively The digital control system (18) of lathe.