CN1024772C - Power transmission apparatus for press - Google Patents
Power transmission apparatus for press Download PDFInfo
- Publication number
- CN1024772C CN1024772C CN 91108379 CN91108379A CN1024772C CN 1024772 C CN1024772 C CN 1024772C CN 91108379 CN91108379 CN 91108379 CN 91108379 A CN91108379 A CN 91108379A CN 1024772 C CN1024772 C CN 1024772C
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- China
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- mentioned
- power
- press
- power transmission
- setting value
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- Expired - Fee Related
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Control Of Multiple Motors (AREA)
Abstract
In a press equipped with a power transmission (1) for transmitting the driving force of a press body to a transfer feeder of the present invention a motor (8) is rotated forwardly or reversely for rotating the shaft of the power transmission (1) at the time of re-coupling thereof such as at the time of replacing metal molds, so that a feeder angle (F) is in agreement with a crank angle (P) of the press, and when the difference (P-F) between these angles is within a predetermined range (A), the power transmission (1) is coupled so that it can be connected easily, accurately and automatically.
Description
The present invention relates in the continuous automatic press tool to the driving force of forcing press itself being sent to the power transmission control system that pay-off is provided with, the particularly connection control system of power transmission.
In continuous automatic press, be equipped with continuous feeder to each processing stations conveying work pieces.Usually.This continuous feeder obtains from forcing press drive bulk power by the power transmission that is connected between forcing press body and the continuous feeder.Rely on this driving force to make the slip of driven rod and forcing press body synchronously carry out two dimension or three-dimensional and move conveying work pieces.
In above-mentioned power transmission, make continuous feeder and the synchronous operated mechanism of forcing press body except obtain driving force from the forcing press body, also have the individual operation motor that can make the continuous feeder individual operation.
But, in having the forcing press of this power transmission, carrying out metal pattern when exchange, power transmission needs temporary transient the disengagement to connect, and connects after waiting to finish the metal pattern exchange again.In addition, in this device, for fear of the mechanical wear that causes owing to the overload that is added on the friction feeding device, when overload state takes place when, the connection of just automatically throwing off power transmission when this situation occurring, also must reconnect power transmission.
When reconnecting, if being equipped with, the predetermined bits of the degree in crank angle of the shaft angle degree of feed appliance and forcing press departs from, then continuous feeder and forcing press body will lose synchronously.Therefore, in one type of prior art syringe, operating personnel will carry out following a series of attended operation.
(1) by the just commentaries on classics/reversal switch of operation feed appliance individual operation motor, the angle of feed appliance axle is regulated on observation display limit, limit and the angle of forcing press body shaft is coincide.
(2) when above-mentioned angle reaches unanimity, connect the connection switch, reconnect power transmission.
Like this, in one type of prior art syringe,, complicated operations must be carried out so that angle is coincide in order to connect power transmission.In addition, because the operation that angle is coincide is very difficult, so, have only the skilled operators of being familiar with these mechanical actions just can finish this connection.
The present invention puts forward in view of the above problems, its objective is that wanting to provide a kind of need to carry out shirtsleeve operation just can make power transmission automatically connect, and the power transmission control system of the good press of the identical precision of position.
The present invention includes: power transmitting mechanism, motor, clutch, first detector, second detector and controller, power transmitting mechanism is used for connecting forcing press output shaft that links to each other with the power source of forcing press body and the power taking-up axle that joins with pay-off, and sends pay-off to by this a forcing press output shaft and a power taking-up power with forcing press; Motor is then opposite with above-mentioned power taking-up axle.It transmits power by the approach that is different from above-mentioned power transmitting mechanism, is used for driving pay-off and makes it to be independent of the forcing press body and turn round; Clutch is used for the above-mentioned power of clutch and transmits the power that machinery carried out and transmit; First detector is used for detecting the turned position of above-mentioned press output shaft; Second detector is used for detecting the turned position that above-mentioned power takes out axle; After controller connects the instruction of above-mentioned power transmitting mechanism in input, just read the detected value of above-mentioned first detector and second detector, and drive above-mentioned motor and make above-mentioned power take out the forward and reverse rotation of axle, so that the difference of the detected value of above-mentioned two detectors is within the predefined specified scope, in the time of within this difference reaches above-mentioned scope, just drive above-mentioned clutch, make above-mentioned power take out axle and be connected with the forcing press output shaft.
According to this configuration, when connecting power transmission, for example operating personnel just can import controller with link order as long as start the switch of appointment.According to this instruction, controller just reads the turned position and the power taking-up axle turned position of the forcing press output shaft of first and second detectors detection according to this input instruction.Then, controller drives feed appliance individual operation motor, so that the difference of the detected value of above-mentioned two detectors reaches within the scope of appointment, in the time of within this difference reaches above-mentioned scope, power transmission is connected.Like this, according to structure of the present invention, the connection of power transmission is handled and just can all automatically be carried out.
When the speed of above-mentioned motor is very high, setting range to above-mentioned controller then preestablishes three setting values, its magnitude relationship is the 1st setting value＜the 2 setting value＜the 3 setting value, connect the instruction of above-mentioned power transmitting mechanism in input after, just read the detected value of above-mentioned first and second detectors, and drive above-mentioned motor and make above-mentioned power take out an axle forward or reverse, difference until the detected value of above-mentioned two detectors exceeds outside the scope of above-mentioned the 3rd setting value, afterwards, driving above-mentioned motor again makes above-mentioned power take out the axle forward or reverse, reach until above-mentioned difference within the scope of above-mentioned the 2nd setting value, in the time of within above-mentioned difference reaches above-mentioned the 2nd range of set value, just stop to drive above-mentioned motor, at this moment, when treating that above-mentioned difference reaches within the above-mentioned the 1st scope that sets value, just drive above-mentioned clutch, make above-mentioned power take out axle and be connected with the forcing press output shaft, thereby, the precision of the position that coincide just can be improved with simple method.
Like this, according to the present invention, owing to detect pressure arbor and the turned position of feed appliance axle and the motor of using according to this detected value driving feed appliance individual operation of power transmission, a succession of connection processing of carrying out that the position coincide and connect power transmission after the position coincideing is all automatically carried out, so, not only can simplify the operation, and be unfamiliar with mechanically operated people and also can finish connecting moves reliably, thereby can improve efficiency of operation such as metal pattern exchange.
Fig. 1 is first example structure schematic diagram of power transmission of the present invention;
Fig. 2 constitutes block diagram for first embodiment control system of power transmission of the present invention;
Fig. 3 is the flow chart of CPU action in first example structure of power transmission of the present invention;
Fig. 4 is the flow chart of second embodiment of power transmission of the present invention;
Fig. 5 is the key diagram of Fig. 4 flow chart;
Fig. 6 and Fig. 7 are the 3rd embodiment flow chart of power transmission of the present invention, wherein have the step of partial graph 4 to be replaced by other step.
Below, describe the present invention in detail with reference to an embodiment shown in the drawings.
The 1st figure is the summary structure of power transmission 1 of the present invention, front end at the output shaft 2 that is connected with the power source of not shown forcing press body, bevel gear 3 is installed, this bevel gear 3 and bevel gear 5 engagements that are installed on the power taking-up axle 4.
In the lower end that power takes out axle 4, horizontal gear 6 is housed, this horizontal gear 6 is connected with the turning cylinder 9 of individual operation with motor 8 by gear 7.On this turning cylinder 9, be provided with clutch 10.
Take out the upper end of axle 4 at power.Be provided with in order to make this power take out axle 4 and self move along the vertical direction, the oil sector 11 that makes gear 3 separate with 5 or mesh, this oil sector 11 moves with the change action of transfer valve 12.Transfer valve 12 is the switching coil position according to the effect of solenoid 12a that is located at the coil both sides and 12b, when power transmission 1 is connected with the power source of forcing press body, just make solenoid 12b energising, when power transmission 1 is thrown off with the power source of forcing press body, just make solenoid 12a energising.
In this structure, the driving force of output shaft 2 outputs of forcing press body is sent to power by bevel gear 3 and 5 and takes out axle 4, then, be sent to and not shown take out axle 4 continuous feeders that are connected, thereby make continuous feeder and the run-in synchronism of forcing press body with this power.
When not accepting power and when making the continuous feeder individual operation, just transfer valve 12 is switched to the release side from the forcing press body, power transmission 1 and forcing press body are broken away from, then, drive individual operation with motor 8.
But in the structure shown in the 1st figure, the output shaft 2 of forcing press body is provided with synchronized S
1, power takes out axle 4 and is provided with synchronized S
2, by synchronized S
1Detect the angle of rotation P of output shaft 2, by synchronized S
2Detect the angle of rotation F that power takes out axle 4.These synchronizeds S
1And S
2Detection output by A/D converter 20 shown in the 2nd figure and 21 input CPU30.
CPU30 be connected switch 31 and be connected, in the time of connecting power transmission 1, the operator just connects this connection switch 31.CPU30 just carry out the control that is dynamically connected certainly shown in the 3rd figure after connecting connection switch 31.
That is, in case power transmission 1 discharge automatically when carrying out metal pattern exchange or feed appliance overload breaks away from after, output shaft 2 and power take out axle 4 and just are parked in a certain angle of rotation P and F respectively.If operating personnel connect (the 100th step) when connecting switch 31 under this state, just then CPU30 at first reads synchronized S
1And S
2Detected value P and F, and obtain their difference.And, when the absolute value P-F of this difference is not in predefined specified angle scope A (the 110th step), CPU30 just judges positive and negative (the 120th step) of this difference, when P-F 〉=0, just just changeing instruction to electromagnetic switch 40 outputs, making individual operation just change (the 130th step) with motor 8.In addition, when P-F＜0, just, make motor 8 counter-rotatings (the 140th step) to electromagnetic switch 40 output counter-rotating instructions.That is, when P-F 〉=0, to take out the position of axle 4 mutually leading because power is compared in the position of output shaft 2, so, just changeing with motor 8 by making individual operation.The position that makes power take out axle 4 increases mutually, when P-F＜0, because the position of output shaft 2 falls behind mutually.So by making individual operation, make power take out the phase lag of axle 4, like this, just can make the angle of rotation position of the two consistent with motor 8 counter-rotatings.When detecting above-mentioned each phasic difference P-F and utilize above-mentioned control to reach in the above-mentioned specified angular range A, CPU30 just makes the solenoid 12b energising of transfer valve 12 immediately, thereby makes power transmission 1 be connected with the forcing press body (the 150th goes on foot).
Like this, according to present embodiment, connect switch 31 if connect, just can be by the forward or reverse of individual operation with motor 8, it is consistent with the crank axle angle P of forcing press automatically to control feed appliance angle F, and, when reaching in the scope A of a certain appointment, their differential seat angle P-F just can automatically connect power transmission 1, so, can finish high-precision connecting moves by shirtsleeve operation.
The 4th figure is second embodiment of the present invention.In the embodiment shown in the 4th figure, the individual operation that does not switch feed appliance does not have speed to switch with motor 8, and the speed of supposition motor 8 is very high.
When connecting connection switch 31, CPU30 elder generation is with the count value N zero clearing (the 200th step) of the counter of interior dress.This counter meter is deposited and is connected the tentative number of times of handling.Then, CPU30 just reads synchronized S
1And S
2Detected value P and F, and obtain the absolute value of the difference of these two detected values | P-F|, judge whether this value is in above-mentioned angular range A(referring to the 5th figure) in (the 210th step).When | P-F|＞A, CPU30 just then judges this value | whether P-F| is in the separation angle C(of appointment referring to the 5th figure) scope in (the 220th step).According to this judgement, if | P-F|≤C, then CPU30 positive and negative (the 230th step) of checking P-F just just changeed instruction to electromagnetic switch 40 outputs when P-F＜0, makes individual operation just change (the 240th goes on foot) with motor 8, when P-F 〉=0, just, make individual operation with motor 8 counter-rotatings (the 250th step), by means of this forward or reverse action to electromagnetic switch 40 output counter-rotating instructions, make feed appliance angle F temporarily away from forcing press angle P, until surpassing separation angle C.
In addition, if judge P-F＞C in the 220th step, then CPU30 just judges positive and negative (the 260th step) of P-F once more, when P-F 〉=0, just just changeing instruction, making individual operation just change (the 270th goes on foot), when P-F＜0 with motor 8 to electromagnetic switch 40 output, just to electromagnetic switch 40 output counter-rotating instruction (the 280th step), with this make feed appliance angle P near the idle running angle B(of appointment referring to the 5th figure).
In addition, detect in the 290th step | during P-F|≤B, CPU30 just at once to electromagnetic switch 40 output halt instructions, makes individual operation stop (the 300th goes on foot) with motor 8.At this moment, because the rotating speed of motor 8 is very high, so motor 8 in fact will be owing to inertia just stops after dallying to a certain degree.
After motor 8 stops, CPU30 just checks count value N(the 310th step), when N＜5, just this count value N is added the 320th step of 1(), after the time specified (the 330th step), just check through interior dress timer | whether P-F| reaches in setting range A (the 210th step).
According to the judgement in the 210th step, when | when P-F| does not reach in the setting range A, just make feed appliance angle P once more, then, carry out the control identical more repeatedly with above-mentioned situation away to separation angle C.This repeatable operation of present embodiment is decided to be 5 times, still can not reach after examination connects 5 times | and during P-F|≤A, just demonstrate mistake (the 340th step) and change idle running angle B and separation angle C to remind the operator.
Through after the trial run of above-mentioned number of times, reach | during P-F|≤A, CPU30 just makes the solenoid 12b energising of transfer valve 12 immediately, thereby, make power transmission 1 be connected with the forcing press body (the 350th goes on foot).
Promptly, in the 4th illustrated embodiment, in the time will adjusting feed appliance angle F and forcing press angle P and coincide, if difference P-F is very little, just feed appliance angle F is temporarily tuned away to separation angle C, then, drive motors 8 is towards the approaching mutually direction of angle P and angle F is rotated, when being close to the idle running angle B of appointment, stop drive motors 8.Utilize such control,, also can make forcing press angle P critically coincide consistent with feed appliance angle F even the rotating speed of motor degree is very high.
The 6th figure is the 3rd embodiment of the present invention.In the present embodiment, the 290th step with the 4th figure changes the 283rd step of the 281-in the dotted line among the 6th figure into.That is, present embodiment is the live load different situation during with counter-rotating when just changeing that is used for motor 8, is decided to be different B respectively according to the idle running angle that will set that rotates and reverse of motor
1And B
2
But in the various embodiments described above, in examination connection procedure repeatedly, idle running angle and separation angle C are fixed values, and these fixed values B or C are adjusted by the operator and to change to suitable value after examination connection failure repeatedly.At this moment, if the forcing press angle when connecting is in common determined position, that leaves nothing to be desired certainly, but, when the position at forcing press angle is uncertain, then be used for making the approaching mutually individual operation in feed appliance angle and this forcing press angle possible different, like this with the load of motor according to each forcing press angle, even repeatedly try to connect, also will end in failure.
Therefore, in the present embodiment, shown in the 7th figure, after the 320th step of the 4th figure, added the 325th step of modified spatial corner B.Promptly according to following formula modified spatial corner B,
B＝B-（P-F）
This position is determined that the result feeds back to idle running angle B.Like this, in the present embodiment, be modified to suitable value, therefore, can reduce failure owing to whenever once try to connect the angle B that just will dally.
In addition, in the structure shown in the 1st figure, be to move the action finishing the connection of power transmission 1 and free along the vertical direction by making power take out axle 4, but other structure, then be for example take out the clutch of being opened and being closed by oil pressure pump control is set between the axle 4 at output shaft 2 and power, and the connection control that He Guanlai carries out power transmission 1 of opening by this clutch.
The present invention is applicable to have the power transmission that the power of forcing press is sent to continuous feeder.
Claims (11)
1, a kind of power transmission control system of press has:
Power transmitting mechanism is used for connecting forcing press output shaft that the power source with the forcing press body joins and takes out axle with power that pay-off joins, and takes out axle by this forcing press output shaft and power and send the power of forcing press to pay-off;
Motor, opposite with above-mentioned power taking-up axle, it transmits power by the approach that is different from above-mentioned power transmitting mechanism, is used for being independent of the forcing press body, drives pay-off;
Clutch is used for the power that the above-mentioned power transmitting mechanism of clutch carried out to transmit;
First detector is used for detecting the turned position of above-mentioned forcing press output shaft;
Second detector is used for detecting the turned position that above-mentioned power takes out axle;
It is characterized in that comprising: controller, three setting values have been set in difference preliminary election for the detected value of above-mentioned first and second detectors, its magnitude relationship is first setting value＜the second setting value＜the three setting value, connect the instruction of above-mentioned power transmitting mechanism when input after, controller just reads the detected value of above-mentioned first and second detectors, and drive above-mentioned motor and make above-mentioned power take out an axle forward or reverse, difference until the detected value of above-mentioned two detectors exceeds outside the scope of above-mentioned the 3rd setting value, then, driving above-mentioned motor again makes above-mentioned power take out the axle forward or reverse, reach until above-mentioned difference within the scope of above-mentioned second setting value, when above-mentioned difference reaches within above-mentioned second scope that sets value, just stop to drive above-mentioned motor, at this moment, when treating that above-mentioned difference reaches within above-mentioned first range of set value, just drive clutch, make above-mentioned power take out axle and be connected with the forcing press output shaft.
2, press the power transmission control system of the described press of claim 1, it is characterized in that: the sequence of operations process of described controller till repeatedly repeatedly from the read operation of described first and second detector to the shut-down operation of motor, up to described difference within first setting value.
3, by the power transmission control system of the described press of claim 2, it is characterized in that: above-mentioned controller has preestablished the maximum times of above-mentioned repeatable operation.
4, by the power transmission control system of the described press of claim 1, it is characterized in that: after stopping to drive above-mentioned motor, if when above-mentioned difference still is in outside the scope of above-mentioned first setting value, just above-mentioned controller shows mistake.
5, by the power transmission detection system of the described press of claim 1, it is characterized in that: through the setting-up time of appointment, above-mentioned controller just compares the above-mentioned difference and first setting value after stopping drive motors.
6, by the power transmission control system of the described press of claim 1, it is characterized in that: above-mentioned controller has been set different setting values to second respectively according to the positive and negative of above-mentioned difference.
7, press the power transmission control system of the described press of claim 2, it is characterized in that: when the above-mentioned difference after motor stops to be in outside first scope that sets value, above-mentioned difference after above-mentioned controller just stops motor feeds back to above-mentioned second setting value, second setting value is revised, then revised second setting value is used for handling next time.
8, press the power transmission control system of the described press of claim 3, it is characterized in that: when the above-mentioned difference after motor stops to be in outside first range of set value, above-mentioned difference after above-mentioned controller just stops motor feeds back to above-mentioned second setting value, second setting value is revised, then, corrected second setting value is used for handling next time.
9, press the power transmission control system of the described press of claim 1, it is characterized in that: the forcing press output shaft of above-mentioned power transmitting mechanism and power take out axle and meet at right angles, above-mentioned power transmitting mechanism is by being installed on first bevel gear on the forcing press output shaft and being installed on the engagement that power takes out second bevel gear on the axle, the rotation of forcing press output shaft is sent to power takes out axle.
10, press the power transmission control system of the described press of claim 9, it is characterized in that: above-mentioned clutch comprises that driving above-mentioned power gets the oil sector that axle moves back and forth vertically and switch electromagnetic type direction transfer valve from the direction of oil to this hydraulic press that supply with, utilizes above-mentioned power to take out moving back and forth of axle and makes above-mentioned first bevel gear with the engagement of second bevel gear or separate.
11, by the power transmission control system of the described press of claim 1, it is characterized in that: above-mentioned first detector and second detector are the synchronizeds that is made of torque generator and torque receiver.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62105586A JPH0732935B2 (en) | 1987-04-28 | 1987-04-28 | Power transmission device for press machine |
| JP105586/87 | 1987-04-28 | ||
| CN88102522A CN1016150B (en) | 1987-04-28 | 1988-04-28 | Power transmission apparatus for press |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88102522A Division CN1016150B (en) | 1987-04-28 | 1988-04-28 | Power transmission apparatus for press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1061932A CN1061932A (en) | 1992-06-17 |
| CN1024772C true CN1024772C (en) | 1994-06-01 |
Family
ID=25742444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91108379 Expired - Fee Related CN1024772C (en) | 1987-04-28 | 1991-10-31 | Power transmission apparatus for press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1024772C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111870318B (en) * | 2019-05-01 | 2024-06-04 | 江苏风和医疗器材股份有限公司 | Surgical instrument control device, surgical instrument, and control method thereof |
-
1991
- 1991-10-31 CN CN 91108379 patent/CN1024772C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1061932A (en) | 1992-06-17 |
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| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |