CN100511043C - Apparatus for preventing screw from being forgotten tightening - Google Patents
Apparatus for preventing screw from being forgotten tightening Download PDFInfo
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- CN100511043C CN100511043C CNB2004100794089A CN200410079408A CN100511043C CN 100511043 C CN100511043 C CN 100511043C CN B2004100794089 A CNB2004100794089 A CN B2004100794089A CN 200410079408 A CN200410079408 A CN 200410079408A CN 100511043 C CN100511043 C CN 100511043C
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- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 22
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- 230000009471 action Effects 0.000 claims description 9
- 230000001419 dependent effect Effects 0.000 claims 5
- 238000010586 diagram Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 8
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- 238000012545 processing Methods 0.000 description 5
- 230000008676 import Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B15/00—Systems controlled by a computer
- G05B15/02—Systems controlled by a computer electric
Abstract
When data is initially set and a workpiece is set, a device 1 (a device for preventing screw from being left untightened) supplies power to an electric screwdriver 200-1, monitors a rotation signal and a torque-up signal from the screwdriver, and detects the tightening of each screw. When the number of screws to be set and the number of screws to be used coincide, the device outputs the OK signal, enables operation of a next step device 2 thereby, and operates in the same way as the device 1. When the final step device n outputs the OK signal and releases the workpieces, total tightening is completed in this way. Since the subsequent step does not operate unless the previous step device successfully completes the tightening work of the screw, the work does not proceed in a state where the screw remains in being erroneously tightened. The device for preventing a screw from being left untightened also can be used as a stand-alone device.
Description
Technical field
The present invention relates to prevent to forget the tighten the screws device, in more detail, relate in the product assembly manipulation, the operator tightens part when being fixed on the product with electric screw driver, and what be used to prevent to forget tighten the screws prevents to forget the tighten the screws device.
Background technology
In the product assembly manipulation, retaining element on mother metal is installed coverture again on basket again, in order to carry out such member combination, favourable screw with electric screw driver to link operational sequence.In the binding of screw operation, may not produce because of what the operator did not note causing and forget that fixed screw and screw-clamped are bad.
This device that is used to prevent to forget fixed screw and the bad grade of clamping is documented in the following patent documentation.Existingly prevent to forget in the tighten the screws device at these, preestablish the number of packages of clamping, as the electric screw driver side that links instrument, with the operations linkage of this electric screw driver, signal is finished in the clamping that generates when carrying out screw tightening.Then, detect clamping number of packages that counting obtains whether with to set number of packages consistent, report clamp operation to the operator and finish or forget that clamping etc. is unusual according to the clamping that generates being finished signal.
Patent documentation 1 spy opens the 2000-47705 communique
Yet operator's assembling error in the attended operation except forgetting that screw-clamped and screw-clamped are bad, also usually produces and forgets the part installation and part mistake etc. is installed.And, even screw reliable grip also can occur as the part mistake that is bonded thing, or under the state that is not bonded thing, screw is connected to the situation on the mother metal.Before prevent to forget the tighten the screws device, in general, 1 electric screw driver connects 1 and forgets the tighten the screws device.In recent years, all adopt 1 operator to use many electric screw drivers, 1 product is assembled into 1 people's production mode of finished product.Therefore, use 1 people's production mode of a plurality of electric screw drivers, a plurality of tighten the screws devices that prevent to forget must be arranged.
Adopt 1 people's production mode, must 1 pair 1 ground connect a plurality of electric screw drivers and a plurality ofly prevent to forget the tighten the screws device, and prevent to forget in the tighten the screws device at each and to set number of packages etc., but at this moment, to the operator must be by clearly indicating clamping screw order and the electric screw driver of use, carry out assembly manipulation smoothly according to order.For this reason, sequential control portion (programmable controller) must be set externally, the operator can operate in order, prevents the error of operator in the assembly manipulation.
Yet, in order to import order controller, spend the expense of buying, and, and a plurality ofly prevent to forget the tighten the screws device with signal wire order of connection control device, need the operation and the expense of necessity etc. of design sequence control device program.And, so bigger original cost must be arranged, this is the very big obstacle that small-scale production factory imports order controller.
In addition,, cooperate the product of assembling, frequently carry out the change of assemble sequence and assembly process for many kinds limited-production mode of production, the each setting that all must change order controller, this need drop into very big labour.
In the above-mentioned patent documentation, the spy opens the 2000-47705 communique and has put down in writing 1 and prevent to forget that the tighten the screws device can connect the device of a plurality of electric screw drivers, but in this device, because the connection platform number of electric screw driver is fixed, then have the insufficient situation of necessary number of electric screw driver, on the other hand, more than necessary number on the time, can occur remaining uneconomical situation again.
Summary of the invention
The present invention be directed to the problems referred to above develops.
What the purpose of this invention is to provide a kind of cheapness prevents to forget the tighten the screws device, that is: when using electric screw driver to carry out tighten the screws and assembled product, having eliminated the forgetting of installing on mother metal of part that be bonded installs and mistake, reliability is carried out assembly manipulation, can not use simultaneously outside order controller, the operator can carry out the assembly manipulation according to order, even because order change and operation change etc., when the kind of change electric screw driver and use platform are counted, also can be handled to flexibility and reliability.
In order to reach the purpose of the invention described above, the present invention (the 1st the present invention) provides and prevents to forget the tighten the screws device, is used for preventing forgetting tighten the screws at workpiece during to the part tighten the screws, it is characterized in that having:
Be used for setting the 1st setting device of the number of packages separately of one or more parts that should install at workpiece;
Set the 2nd setting device of necessary tighten the screws number of packages when being used on workpiece, part being installed;
When taking out, produce the part that part that this part of expression taken out takes out signal and take out signal generation device for the part in workpiece, installed;
When screw-clamped, the generation screw-clamped is finished the screw-clamped of signal and is finished signal generation device;
Take out signal according to the part that takes out signal generation device from part, calculate the 1st calculation element of the residual number of packages of counting by each part of the 1st setting device setting;
Finish the screw-clamped of signal generation device generation according to screw-clamped and finish signal, calculate the 2nd calculation element of the residual number of packages of the screw-clamped number of packages of setting by the 2nd setting device;
Residually count and the residual number of packages of screw-clamped number of packages when being 0 the 1st decision maker of finishing signal that the operation of output expression screw-clamped is finished when what calculate whole parts that the 1st and the 2nd setting device sets.
The 1st of the present invention preventing forgets that the tighten the screws device preferably also has: judge whether workpiece is configured in the 2nd decision maker of operating position; When being set other part and tighten the screws point number of packages by the 1st and the 2nd setting device, and judge work piece configuration when the operating position by the 2nd decision maker, output is used to connect the device of the control signal of electric screw driver power supply.
Preferably also have: when the 1st decision maker judged that the remanent point number of packages of the residual number of packages of whole parts and tighten the screws is 0, output was used to turn-off the device of the control signal of electric screw driver power supply.
In order to achieve the above object, the present invention (the 2nd the present invention) provides and prevents to forget the tighten the screws device, is used for preventing forgetting tighten the screws at workpiece during to the part tighten the screws, it is characterized in that having:
Be used for setting the 1st setting device of the number of packages of one or more parts that should install at workpiece;
Be used for when workpiece is installed part, setting the 2nd setting device of necessary tighten the screws number of packages;
According to detecting the signal that produces when taking out whenever part is actual, the 1st calculation element of the residual number of packages of calculating part;
According to detecting the signal that produces when the screw-clamped, calculate the 2nd calculation element of the residual number of packages of tighten the screws;
The residual number of packages of the part that supervision is obtained by the 1st and the 2nd calculation element and the residual number of packages of tighten the screws, and judge that they all are at 0 o'clock, the 1st decision maker of finishing signal that the operation of output expression screw-clamped is finished.
The 2nd of the present invention preventing forgets that the tighten the screws device preferably also has: judge whether workpiece is configured in the 2nd decision maker of operating position; When set part spare by the 1st and the 2nd setting device is number and tighten the screws number of packages, and judges work piece configuration when the operating position by the 2nd decision maker, and output is used to connect the device of the control signal of electric screw driver power supply.In addition, preferably also have: when the 1st decision maker judged that residual number of packages of part and the residual number of packages of tighten the screws all are 0, output was used to turn-off the device of the control signal of electric screw driver power supply.
In order to achieve the above object, the present invention (the 3rd the present invention) provides and prevents to forget the tighten the screws device, is used for preventing forgetting tighten the screws at workpiece during to the part tighten the screws, it is characterized in that having:
Be used for when workpiece is installed part, setting the 1st setting device of necessary tighten the screws number of packages;
When screw-clamped, the generation screw-clamped is finished the screw-clamped of signal and is finished signal generation device;
Finish the screw-clamped of signal generation device generation according to screw-clamped and finish signal, calculate the 1st calculation element of the residual number of packages of the screw-clamped number of packages of setting by the 2nd setting device;
The residual number of packages of the tighten the screws that supervision is obtained by the 1st calculation element, and judge that this residual number of packages is at 0 o'clock, output expression screw-clamped is operated the 1st decision maker of finishing of finishing signal;
Connect when using when this prevents to forget a plurality of subordinates of tighten the screws device, unless from prime prevent forget that the output of tighten the screws device finishes signal, the parts that at least the 1 calculation element itself is failure to actuate.
The 3rd of the present inventionly prevents to forget that the tighten the screws device preferably also has: when the 1st decision maker judged that the residual number of packages of tighten the screws is 0, output was used to turn-off the power remove signal output apparatus of control signal of the electric screw driver power supply of use.Prevent to forget that the tighten the screws device also has: be used for setting one or more parts that to install at workpiece the 2nd setting device of number of packages separately; When taking out, produce the part that part that this part of expression taken out takes out signal and take out signal generation device for the part in workpiece, installed.
The 1st decision maker is 0 according to the residual number of packages of the whole parts that calculate the setting of the 1st and the 2nd setting device and the residual number of packages of tighten the screws number of packages preferably, and output expression screw-clamped is operated the signal of finishing of finishing.At this moment, the power remove signal output apparatus preferably judges that at the 1st decision maker the residual number of packages of whole parts and the residual number of packages of tighten the screws are at 0 o'clock, the control signal that output is used to turn-off the electric screw driver power supply.
The 3rd of the present inventionly prevents to forget that the tighten the screws device preferably also has: the 3rd setting device that is set in the number of packages of one or more parts that part should be installed in the workpiece; According to the signal that detects whenever part is actual generation when taking out, calculate the 2nd calculation element of the residual number of packages of part, the 1st decision maker monitors residual number of packages of tighten the screws and the residual number of packages of part that is obtained by the 1st and the 2nd calculation element, when judging that they all are 0, output expression screw-clamped is operated the signal of finishing of finishing.At this moment, the power remove signal output apparatus is preferably in the 1st decision maker and judges that residual number of packages of tighten the screws and the residual number of packages of part all are at 0 o'clock, and output is used to turn-off the control signal of the electric screw driver power supply of use.
The 3rd of the present invention preventing forgets that the tighten the screws device preferably also has: judge whether workpiece is configured in the 2nd decision maker of operating position; When being set the tighten the screws number of packages by the 1st setting device and judging work piece configuration at operating position by the 2nd decision maker, output is used to connect the power throughing signal output unit of control signal of the electric screw driver power supply of use.When preventing to forget that the tighten the screws device possesses the 2nd setting device and the 2nd decision maker, this device preferably also has: setting tighten the screws number of packages and part by the 1st and the 2nd setting device, and judge work piece configuration under the situation of operating position by the 2nd decision maker, output is used to connect the power throughing signal output unit of the control signal of electric screw driver power supply.When preventing to forget that the tighten the screws device possesses the 3rd setting device, this device preferably also has: setting tighten the screws number of packages and part number of packages by the 1st and the 3rd setting device, and judge work piece configuration under the situation of operating position by the 2nd decision maker, output is used to connect the power throughing signal output unit of control signal of the electric screw driver power supply of use.
The 3rd of the present inventionly prevents to forget in the tighten the screws device, have the 2nd decision maker prevent forget that the tighten the screws device preferably also has: connect for a plurality of subordinates and use the initial stage that prevents to forget the tighten the screws device, when the 2nd decision maker judges that work piece configuration is at operating position, make the parts of the 1st calculation element action at least itself.
The 3rd of the present inventionly prevents to forget preferably tool also of tighten the screws device: connect in a plurality of subordinates and use when preventing to forget the tighten the screws device, output is used to represent all to prevent to forget that the completed whole clampings of clamp operation of tighten the screws device finish the parts of signal; Only in the end level prevent forget that tighten the screws device output all clamps when finishing signal, the device of signal is finished in the output of turn-offing self.At this moment have the 2nd decision maker prevent forget that the tighten the screws device preferably also has: use at monomer to prevent to forget under the situation of tighten the screws device, when the 2nd decision maker judges that work piece configuration is at operating position, the parts that the 1st calculation element at least itself may be moved; Be the devices that signal is finished in the whole clampings of reception, prevent to forget under the situation of tighten the screws device that signal receiving device is finished in whole clampings of the output that frequent generation is identical with the situation that signal is finished in the whole clampings of reception in the monomer use; After preventing to forget that signal is finished in the output of tighten the screws device, judge all to clamp the output of finishing signal receiving device, judge all to clamp and finish the decision maker whether signal is imported.At this moment, all clamp and finish signal receiving device preferably, prevent to forget under the situation of tighten the screws device in a plurality of subordinates connections, when receiving that signal is finished in whole clampings, be non-conduction only, when the monomer use prevents cover note tighten the screws device, often be non-conduction components of photo-electric conversion coupling mechanism.
In order to achieve the above object, the present invention (the 3rd the present invention) provides and prevents to forget the tighten the screws device, is used for preventing forgetting tighten the screws at workpiece during to the part tighten the screws, it is characterized in that also having:
Be set in the 1st setting device of the number of packages separately of one or more parts that should install in the workpiece;
When being installed, each part of part sets the 2nd setting device of necessary tighten the screws number of packages in relative workpiece;
When taking out, produce the part that part that this part of expression taken out takes out signal and take out signal generation device for the part in workpiece, installed;
When screw-clamped, the generation screw-clamped is finished the screw-clamped of signal and is finished signal generation device;
Take out signal according to the part that takes out signal generation device from part, calculate the 1st calculation element of the residual number of packages of each part number of packages of setting by the 1st setting device;
Finish the screw-clamped that signal generation device produces according to screw-clamped and finish signal, calculate the 2nd calculation element of setting by the 2nd setting device the residual number of packages of the screw-clamped number of packages of each part;
The residual number of packages of the part that supervision is obtained by the 1st and the 2nd calculation element and the residual number of packages of tighten the screws, judge the residual number of packages of whole parts that the 1st and the 2nd setting device is set and the residual number of packages that the screw-clamped of whole parts is counted is calculated as at 0 o'clock, the 1st decision maker of finishing signal that the operation of output expression screw-clamped is finished.
This prevents to forget that the tighten the screws device also can have:
Judge whether workpiece is configured in the 2nd decision maker of operating position;
Set part and tighten the screws number of packages by the 1st and the 2nd setting device, and judge work piece configuration when the operating position by the 2nd decision maker, output is used to connect the device of the control signal of electric screw driver power supply.
This device also can have: when the 1st decision maker judged that the residual number of packages of the residual number of packages of whole parts and tighten the screws is 0, output was used to turn-off the device of the control signal of electric screw driver power supply.
The present invention with above-mentioned formation does not use outside order controller, equal system in the time of yet can realizing and use this order controller.
Prevent to forget in the tighten the screws device when setting whole screw number of packages at 1, when finishing, all operations can not judge quality, but among the present invention, owing to prevent to forget that a plurality of of subordinate connection the screw number of packages is set in suitable dispersion in the tighten the screws device, then when preventing to forget the EO of tighten the screws device for 1, the quality that gets final product output function is judged.Therefore, also easy specific bad place, and then the correction at bad place also is easy.
Among the present invention, because not only the number of the number of packages of screw but also one or more parts that should fix in workpiece can be set respectively preventing to forget in the tighten the screws device, and can judge that whether their suitably use, therefore pilot screw clamp operation more rightly.
Prevent to forget the tighten the screws device, can use as monomer, do not limit simultaneously the platform number that subordinate connects yet, so very big effect is being arranged aspect the saving of original cost and time, in addition, owing to can administer the change of the production process after the importing etc. flexibly, also be resultful then from operating cost and time.
Therefore, aspect the reduction production cost of products very big contribution can arranged.
Description of drawings
Fig. 1 is the expression key diagram that prevents to forget the input/output signal of tighten the screws device of the present invention.
Fig. 2 is the expression block scheme that prevents to forget tighten the screws device formation of the present invention.
Fig. 3 is used to illustrate the part process flow diagram that prevents to forget the tighten the screws device action of the present invention.
Fig. 4 is used to illustrate the part process flow diagram that prevents to forget the tighten the screws device action of the present invention.
Fig. 5 is used to illustrate the part process flow diagram that prevents to forget the tighten the screws device action of the present invention, is the process flow diagram that expression continues the processing that the process flow diagram of Fig. 3 and Fig. 4 carries out.
Fig. 6 is the key diagram of expression with a plurality of embodiment when preventing to forget that the tighten the screws device connects as the unit subordinate of the present invention.
Embodiment
Fig. 1 is the key diagram that expression monomer of the present invention prevents to forget the input/output relation of tighten the screws device 100.As shown in the figure, prevent to forget that the input/output signal of tighten the screws device 100 is as follows.
Input signal
The WORK signal that whether has disposed from the expression workpiece of workpiece sensing sensor (as described later, when subordinate connects a plurality of when preventing to forget the tighten the screws device, for preventing to forget the tighten the screws device beyond elementary, replace the WORK signal, input is from the OK signal that prevents to forget the tighten the screws device of prime).
Take out PART (A), (PART (B) signal and PART (C) signal of the taking-up of representing part A, part B, part C respectively of detecting sensor from part
Rotating signal from the expression of electric screw driver 200 rotation
From the expression of electric screw driver 200 because the TORQUE_UP signal of the screw-clamped completion status that torque magnification is realized
When subordinate connect a plurality of when preventing to forget the tighten the screws device, preventing beyond the last level forget the tighten the screws device from last level prevent forget that expression that the tighten the screws device receives clamps whole clampings of finishing and finishes signal
The OK signal that the expression screw-clamped is normally finished
The expression workpiece is operated the NG signal that is removed halfway
When subordinate connects a plurality ofly when preventing to forget the tighten the screws device, the preventing of last level forgets that the tighten the screws device prevents to forget that to other expression of tighten the screws device output clamps whole clampings of finishing and finishes signal
Among Fig. 1, the state that expression monitors the taking-up of 3 parts (part A～part C), certainly, the part number of supervision is not limited to 3, can be any positive integer.At this moment, monitor the whole parts that take out, not all when tighten the screws, use,, should monitor its taking-up even obsolete part can not be exported the OK signal when using this part owing to operator's mistake.For example, in following examples, use part A and B, do not use part C, but monitor the taking-up of whole part A～C.
Prevent to forget tighten the screws device 100, as shown in Figure 2, inside has the CPU10 that is used to control the processing action that prevents to forget tighten the screws device 100, and, have the display part 30 that operator waits the result of the input state of the operation inputting part 20 carry out initial setting and display operation input part 20 and CPU10 on the surface of device.Display part 30 is visual display unit (VDU)s such as LED or character and picture, can also comprise alarms such as buzzer and report parts.Prevent to forget tighten the screws device 100 also have signal input and output portion 40, storage be used to control the program that prevents to forget 100 actions of tighten the screws device and data storage part 50, supply with the power suppling part 60 of electric screw driver 200 power supplys.Replace power suppling part 60, also power source ON/OFF control signal can be supplied with electric screw driver 200,, again power supply is supplied with motor driver 200 according to this control signal.
With reference to the process flow diagram of Fig. 3～Fig. 5, the control action of the CPU10 that prevents to forget tighten the screws device 100 is described.Before beginning bolt clamp operation, the operator utilizes display part 30 operating operation input parts 20, carries out initial setting.The data of initial setting are the setting-up times of the number of packages of screw number of packages, part A and the B that should clamp, tighten the screws described later prediction timer, and the data of setting at step S1, store storage part 50 into.Then, at step S2, CPU10 finishes the signal transistor turns with whole clampings described later, and, at step S3, with setting content from storing 50 inside that read into CPU10.Like this, initial setting is finished.By the operator, workpiece be configured in fixed workpiece station.
To prevent to forget when tighten the screws device 100 uses as monomer need not have whole clampings and finish the signal transistor.Thereby, step S2 (and step S24 described later) need this embodiment yet in, to monomer use can a plurality of subordinates connect use prevent that the situation of forgetting the tighten the screws device from being illustrated.
Under this state, CPU10 monitors the WORK signal at step S4, when the WORK signal is imported, judges that workpiece is positioned in workpiece station (workpiece mounting table).Then, step S5 is transferred in processing, power source ON signal is outputed to power suppling part 60, to electric screw driver 200 supply powers.Like this, electric screw driver 200 is a serviceable condition.
After this, CPU10 when breaking away from according to WORK signal determining workpiece, at step S7, outputs to power suppling part 60 with power supply OFF signal at step S6, and at step S8, output NG signal shows that in display part 30 warnings workpiece takes out.When showing the warning of NG signal, turn back to step S4, the operator disposes workpiece once more, can continue the processing of CPU10 and operator's screw-clamped operation.When judging that workpiece does not break away from, transfer to step S9 from step S6, monitor that (PART (A) signal judges whether part A takes out.
When part A had taken out, S9 entered step 10 from step, in step 10, the residual number of packages of part A was subtracted 1.Operate in the normal state if set, when then finishing the screw clamp of this part is virtuous, new parts A takes out, or do not have part B to be removed, and the also not taking-up of predetermined part C of present embodiment, therefore, through step S21, S6, S11, S13, carry out the screw-clamped operation of S14～S19.
In this screw-clamped operation, at first,, judge whether electric screw driver 200 rotates at step S14.When electric screw driver 200 does not rotate, turn back to step S6; When rotation, handle entering into step S15, starting bolted prediction timer.The stipulated time of this tighten the screws prediction timer,, preestablish according to the length of screw at step S1.After this, at step S16, judge once more whether electric screw driver 200 rotates.This is because detect in temporary transient midway interruption of tighten the screws operation or coping screw engagement having stopped rotation.When electric screw driver 200 does not rotate, turn back to step S6.
When electric screw driver 200 rotations, at step S17, whether time is up to judge tighten the screws prediction timer.When the time then, at step S18, judge once more whether electric screw driver 200 rotates.When not rotating,, judge and whether import the TORQUE_UP signal at step S19.The TORQUE_UP signal reaches regulation at electric screw driver 200 and clamps the later stipulated time generation of torque.When the TORQUE_UP signal is not imported, mean electric screw driver 200 idle running, turn back to step S6.During this TORQUE_UP signal input, this expression bolt normally clamps, and then at step S20, subtracts 1 from the residual number of packages of screw.Finish up to tighten the screws, all carry out same tighten the screws operation the part A that takes out.When the tighten the screws of identical parts finishes, and the number of packages that should install of part A is 2 when above, takes out next part A, subtracts 1 at step S10 from the part number of packages, to the part A of new taking-up, carries out and above-mentioned same tighten the screws.Like this, when predefined whole part numbers of part A all carry out screw-clamped, take out part B, carry out screw-clamped.
As mentioned above, in the present embodiment, only set part A and B and be installed in the workpiece, but when the part C mistake is taken out,, also monitor PART (C) signal that takes out sensor from the part of part C then at step S13.When part C is taken out, at step S7, power supply OFF signal is outputed to power suppling part 60, at step S8, output NG signal shows with warning in advance at display part 30.
At step S10, S12 and S20, will subtract each other the result as the residual number of packages of part A and part B and the residual number of packages of screw, be presented at display part 30.
In the above-mentioned explanation, can be when the installation of each part and screw, from residual number of packages, to subtract 1, judge again whether number of packages is 0; But also can be the number of packages that accumulative total has been used, judge again whether this value reaches setting value.
At step S21, when the whole residual number of packages of judging screw, part A and part B is 0, enter into the step S22 of Fig. 5 from step S21, with power supply OFF signal supply power supply unit 60, shutoff is supplied with the power supply of electric screw driver 200, then, at step S23, the OK signal that output expression screw-clamped is finished smoothly.This screw-clamped is finished and also is displayed on display part 30.The operator sees in the screw-clamped of display part 30 and finishes demonstration, knows that promptly the screw-clamped action that is connected the electric screw driver 200 that prevents to forget tighten the screws device 100 finishes.Like this, the operator takes out workpiece from the workpiece station.At step S24, export all to clamp and finish signal, but because of present embodiment is that the monomer use prevents to forget tighten the screws device 100, all clamping is finished signal and do not outputed to the outside.As described later, monomer uses when preventing to forget the tighten the screws device, all clamps the state of finishing signal owing to be in input, enters into step S26 from step S25.Then, workpiece breaks away from, and transfers to step S27 again, turn-offs the output of OK signal.
Below, Fig. 3～Fig. 5 with reference to Fig. 6 and front have illustrated illustrates that subordinate connects a plurality of situation that prevents to forget the tighten the screws device shown in Figure 1.Among Fig. 6, illustration subordinate connect n (n is the integer 2 or more) prevent to forget tighten the screws device 100 (device 1, device 2 ..., device n), these install 1～n correspondence connecting electric screw driver 200 (electric screw driver 1, electric screw driver 2 ... electric screw driver n) situation.
For the purpose of simplifying the description, among Fig. 6, be installed in the part in the workpiece, be set in advance in identical workpiece installation site, and it is only represented to carry out the situation of tighten the screws, therefore, will can not represent to import the PART () signal that expression is taken out the part that respectively prevents to forget the tighten the screws device, but the same with the foregoing description, certainly carry out two kinds of operations of part taking-up and screw-clamped.When PART () signal is not imported, then do not need the relevant treatment step of part with step S9～S13 of Fig. 3, do not need the relevant determine type of part simultaneously with the step S21 of Fig. 4 yet.
Also can replace preventing to forget the different electric screw driver of connection on the tighten the screws device at each, and several or all prevent to forget on the tighten the screws device and to connect same electric screw driver.
When the subordinate connection prevents to forget the tighten the screws device,, replace the OK signal of WORK signal input from preceding stage arrangement at the device of back level.Just, from the OK signal of preceding stage arrangement, as shown in Figure 6, think the WORK signal of downstream component.Therefore, at downstream component, whether in the past stage arrangement is accepted OK signal (the step S23 at Fig. 5 produces), is equal with whether accepting the WORK signal, so, can judge at the step S4 of Fig. 3.At step S4, unless judgement receives the OK signal, otherwise its later step is no longer carried out.
Like this, at downstream component i, when not supplying with,, then can not begin the screw-clamped operation owing to do not pass to power supply to electric screw driver i from the OK signal of preceding stage arrangement i-1.Therefore, though do not show that at display part 30 screw-clamped finishes, even the operation of the screw-clamped of the prime that has been through with, the operator can think exactly that also the operation of prime is incomplete.
Before beginning operation, the operator operates the operation inputting part 20 of 1～n of each device, at step S1, with the data storage of initial setting to storage part 50.Then, make whole clampings finish the signal transistor turns.Preventing to forget tighten the screws device 100, when the phototransistor of photoelectrical coupler PC when being non-conduction, is the states of finishing the signal input that all clamp.Yet, as shown in Figure 6, all clamp when finishing signal output and use transistor Tr when last stage arrangement n connects, the phototransistor of the photoelectrical coupler PC of device 1～device n-1 is an on-state, and device 1～device n-1 finishes the states that signal is not imported for whole clampings.When in that the workpiece station is logical when putting workpiece, with WORK signal supply device 1.Device 1 detects this signal, with ON signal supply power supply unit 60, power supply can be supplied with electric screw driver 200-1 (step S5).Like this, electric power supplies to electric screw driver 200-1.Then, under the control of device 1, with OFF signal supply power supply unit 60, turn-off the power supply (step S22) of electric screw driver 200-1 when carrying out the screw-clamped operation rightly, and produce OK signal (step S23) installing 2.
Device 1, step S23 at Fig. 5, turn-off all to clamp and finish signal output transistor Tr, output all clamps and finishes signal, yet between other devices 2～device n, connect and be used to send this whole signal wires (just, the transistor Tr of signal is finished in the whole clampings that are used for output unit 1, is not connected to other devices) of finishing signal that clamp.As shown in Figure 6, only set for and finish signal, be delivered to other devices 1～device n-1 by signal wire L from whole clampings of last stage arrangement n.As previously mentioned, when the phototransistor of the photoelectrical coupler PC of each device was nonconducting state, input all clamped and finishes signal.When preventing to forget that the tighten the screws device uses as monomer,, therefore be that input all clamps the state of finishing signal because the input terminal of photoelectrical coupler is an off-state.
After this, the device 1 step S25 at Fig. 5 monitors the signal that transmits by signal wire L, judges whether final unit n exports whole clampings and finish signal.When signal is finished in the whole clampings of output, judge at step S26 whether workpiece breaks away from.When breaking away from, enter step S27, setting the OK signal is OFF.
At step S25, all clamp when finishing signal and not importing when judging, just, during the phototransistor conducting of photoelectrical coupler PC, enter into step S28, judge whether workpiece breaks away from, when breaking away from, turn-off the output of OK signal at step S29, when not breaking away from, at step S30 output ON signal, no matter which kind of situation all turns back to step S25.When workpiece breaks away from, turn-off the OK signal at step S29, but when after this turning back to step S28, the situation of mounting workpiece is once more arranged by step S25.For this situation,, connect the OK signal that was once turn-offing once more at step S30.
At device 2, when judging supply OK signal (=WORK signal), carry out the power supply of electric screw driver 2 and supply with, carry out the screw-clamped operation of setting.Its result when carrying out suitable screw-clamped operation, will produce OFF signal and OK signal.After this, also carry out and install 1 same processing.
Equally, stage arrangement n in the end, when suitably carrying out the screw-clamped operation of setting, this device n output OK signal.Like this, whole screw-clamped operations of setting are finished.After this, device n is at step S24, and output all clamps and finishes signal.This signal is finished signal output by whole clampings of also disconnected device n and is output with transistor Tr, is delivered to other devices 1～device n-1.Therefore, the phototransistor of other devices 1～device n-1 is an off state, and each device of judgement has been imported whole clampings at the step S25 of Fig. 5 and finished signal.Under this state, the operator takes out workpiece from the workpiece station.
Therefore, each installs 1～n, judges that at step S26 workpiece breaks away from, turn-offs the output of OK signal at step S27.
Claims (23)
1. one kind prevents to forget the tighten the screws device, forgets tighten the screws when being used to prevent on workpiece the part tighten the screws, it is characterized in that having:
Be used to set the 1st setting device of the number of packages separately of one or more parts that should on workpiece, install;
Set the 2nd setting device of the number of packages of necessary tighten the screws when being used on workpiece, part being installed;
When taking out, produce the part that part that this part of expression taken out takes out signal and take out signal generation device for the part installed to workpiece;
When screw-clamped, the generation screw-clamped is finished the screw-clamped of signal and is finished signal generation device;
Take out signal according to the part that takes out signal generation device from part, calculate the 1st calculation element of the residual number of packages of each part number of packages of setting by the 1st setting device;
Finish the screw-clamped of signal generation device generation according to screw-clamped and finish signal, calculate the 2nd calculation element of the residual number of packages of the screw-clamped number of packages of setting by the 2nd setting device;
When the residual number of packages of whole parts of setting when the 1st and the 2nd setting device and the residual number of packages of screw-clamped number of packages are calculated as 0, the 1st decision maker of finishing signal that the operation of output expression screw-clamped is finished.
As claim 1 record prevent forget the tighten the screws device, it is characterized in that also having:
Judge whether workpiece is configured in the 2nd decision maker of operating position;
Set part and tighten the screws number of packages by the 1st and the 2nd setting device, and judge work piece configuration when the operating position by the 2nd decision maker, output is used to connect the device of the control signal of electric screw driver power supply.
3. prevent to forget the tighten the screws device as claim 1 or 2 records, it is characterized in that also having: when the 1st decision maker judged that the residual number of packages of the residual number of packages of whole parts and tighten the screws is 0, output was used to turn-off the device of the control signal of electric screw driver power supply.
4. one kind prevents to forget the tighten the screws device, forgets tighten the screws when being used to prevent on workpiece the part tighten the screws, it is characterized in that having:
Be used to set the 1st setting device of the number of packages of one or more parts that should on workpiece, install;
Set the 2nd setting device of the number of packages of necessary tighten the screws when being used on workpiece, part being installed;
According to detecting the signal that produces when taking out in that part is actual, the 1st calculation element of the residual number of packages of calculating part;
According to detecting the signal that produces when the screw-clamped, calculate the 2nd calculation element of the residual number of packages of tighten the screws;
The residual number of packages of the part that supervision is obtained by the 1st and the 2nd calculation element and the residual number of packages of tighten the screws, and judging that they all are at 0 o'clock, the 1st decision maker of finishing signal that the operation of output expression screw-clamped is finished.
As claim 4 record prevent forget the tighten the screws device, it is characterized in that also having:
Judge whether workpiece is configured in the 2nd decision maker of operating position;
The the 1st and the 2nd setting device is set part number of packages and tighten the screws number of packages, and when the 2nd decision maker is judged work piece configuration at operating position, and output is used to connect the device of the control signal of electric screw driver power supply.
As claim 4 or 5 records prevent forget the tighten the screws device, it is characterized in that also having: judge that at the 1st decision maker residual number of packages of part and the residual number of packages of tighten the screws all are at 0 o'clock, output is used to turn-off the device of the control signal of electric screw driver power supply.
7. one kind prevents to forget the tighten the screws device, forgets when being used to prevent on workpiece the part tighten the screws can be connected use with a plurality of subordinates by monomer by tighten the screws, it is characterized in that having:
Set the 1st setting device of necessary tighten the screws number of packages when being used on workpiece, part being installed;
When screw-clamped, the generation screw-clamped is finished the screw-clamped of signal and is finished signal generation device;
Finish the screw-clamped of signal generation device generation according to screw-clamped and finish signal, calculate the 1st calculation element of the residual number of packages of the screw-clamped number of packages of setting by the 1st setting device;
The residual number of packages of tighten the screws that supervision is obtained by the 1st calculation element 0 is a necessary condition to judge that this residual number of packages is, output expression screw-clamped is operated the 1st decision maker of finishing of finishing signal;
Connect when using when this prevents to forget a plurality of subordinates of tighten the screws device, unless from prime prevent forget that the output of tighten the screws device finishes signal, the device that self at least the 1 calculation element is failure to actuate.
8. prevent to forget the tighten the screws device as claim 7 record, it is characterized in that also having: when the 1st decision maker judged that the residual number of packages of tighten the screws is 0, output was used to turn-off the power remove signal output apparatus of control signal of the electric screw driver power supply of use.
As claim 7 or 8 the record prevent forget the tighten the screws device, it is characterized in that having:
Be used to set the 2nd setting device of the number of packages separately of one or more parts that should on workpiece, install;
When taking out, produce the part that part that this part of expression taken out takes out signal and take out signal generation device for the part installed to workpiece.
Above-mentioned the 1st decision maker, the residual number of packages of whole parts of setting at the 1st and the 2nd setting device and the residual number of packages of screw-clamped number of packages are calculated as at 0 o'clock, and the operation of output expression screw-clamped is finished finishes signal.
10. prevent to forget the tighten the screws device as the record of the claim 9 of dependent claims 8, it is characterized in that: the power remove signal output apparatus, judge that at above-mentioned the 1st decision maker the residual number of packages of whole parts and the residual number of packages of tighten the screws are at 0 o'clock, the control signal that output is used to turn-off the electric screw driver power supply.
11. as claim 7 or 8 the record prevent forget the tighten the screws device, it is characterized in that having:
Be used to set the 3rd setting device of the number of packages of one or more parts that should on workpiece, install;
Detect the signal that when the actual taking-up of part, produces, calculate the 2nd calculation element of the residual number of packages of part,
The 1st decision maker monitors the residual number of packages of tighten the screws that obtained by the 1st and the 2nd calculation element and the residual number of packages of part, is judging that they all are at 0 o'clock, and the operation of output expression screw-clamped is finished finishes signal.
12. prevent to forget the tighten the screws device as the record of the claim 11 of dependent claims 8, it is characterized in that: the power remove signal output apparatus judges that at the 1st decision maker residual number of packages of tighten the screws and the residual number of packages of part all are at 0 o'clock, and output is used to turn-off the control signal of the electric screw driver power supply of use.
13. as each record of claim 7～12 prevent forget the tighten the screws device, it is characterized in that also having: judge whether workpiece is configured in the 2nd decision maker of operating position.
14. prevent to forget the tighten the screws device as claim 13 record, it is characterized in that also having: the 1st setting device is set the tighten the screws number of packages, and when the 2nd decision maker judged that work piece configuration is at operating position, output was used to connect the power throughing signal output unit of control signal of the electric screw driver power supply of use.
15. prevent to forget the tighten the screws device as the record of the claim 13 of dependent claims 9 or 10, it is characterized in that also having: set tighten the screws number of packages and part at the 1st and the 2nd setting device, and the 2nd decision maker is judged work piece configuration when operating position, and output is used to connect the power throughing signal output unit of the control signal of electric screw driver power supply.
16. prevent to forget the tighten the screws device as the record of the claim 13 of dependent claims 11 or 12, it is characterized in that also having: set tighten the screws number of packages and part number of packages at the 1st and the 3rd setting device, and the 3rd decision maker is judged work piece configuration when operating position, and output is used to connect the power throughing signal output unit of control signal of the electric screw driver power supply of use.
17. prevent to forget the tighten the screws device as each record of claim 13～16, it is characterized in that also having: when a plurality of subordinates connection uses prevent to forget the initial stage of tighten the screws device, when the 2nd decision maker is judged work piece configuration at operating position, make the device of at least the 1 calculation element action of itself.
18. prevent to forget the tighten the screws device as each record of claim 7～17, it is characterized in that also having: connect in a plurality of subordinates and use when preventing to forget the tighten the screws device, the device of signal is finished in whole clampings that output is used to represent to finish the clamp operation that all prevents to forget the tighten the screws device;
Only in the end level prevent forget that tighten the screws device output all clamps when finishing signal, the device of signal is finished in the output of shutoff itself.
19. as dependent claims 13～17 each claim 18 record prevent forget the tighten the screws device, it is characterized in that also having:
Use the situation that prevents to forget the tighten the screws device at monomer, when the 2nd decision maker is judged work piece configuration at operating position, the device that at least the 1 own calculation element may be moved;
Be to receive all to clamp the parts of finishing signal, use at monomer to prevent to forget under the situation of tighten the screws device that signal receiving device is finished in the whole clampings that produce and receive whole clampings same output when finishing signal;
After preventing to forget that signal is finished in the output of tighten the screws device, judge all to clamp the output of finishing signal receiving device, and judge all to clamp and finish the decision maker whether signal is imported.
20. prevent to forget the tighten the screws device as claim 19 record, it is characterized in that: all clamping and finishing signal receiving device is to connect in a plurality of subordinates to prevent to forget under the tighten the screws device situation, when receiving that signal is finished in whole clampings, be non-conduction only, preventing to forget under the situation of tighten the screws device in the monomer use, often is non-conduction photoelectrical coupler.
21. one kind prevents to forget the tighten the screws device, forgets tighten the screws when being used to prevent on workpiece the part tighten the screws, it is characterized in that having:
Be used to set the 1st setting device of the number of packages separately of one or more parts that should on workpiece, install;
Be used for each part of installing is set the 2nd setting device of necessary tighten the screws number of packages on workpiece;
When taking out, produce the part that part that this part of expression taken out takes out signal and take out signal generation device for the part installed to workpiece;
When screw-clamped, the generation screw-clamped is finished the screw-clamped of signal and is finished signal generation device;
Take out signal according to the part that takes out signal generation device from part, calculate the 1st calculation element of the residual number of packages of counting by each part of the 1st setting device setting;
Finish the screw-clamped that signal generation device produces according to screw-clamped and finish signal, calculate the 2nd calculation element of setting by the 2nd setting device the residual number of packages of the screw-clamped number of packages of each part;
The residual number of packages of the part that supervision is obtained by the 1st and the 2nd calculation element and the residual number of packages of screw-clamped, and judge the residual number of packages of whole parts that the 1st and the 2nd setting device is set and be 0 o'clock, the 1st decision maker of finishing signal that the operation of output expression screw-clamped is finished the residual number of packages of the screw-clamped number of packages of whole parts.
22. as claim 21 record prevent forget the tighten the screws device, it is characterized in that also having:
Judge whether workpiece is configured in the 2nd decision maker of operating position;
Set part and tighten the screws number of packages at the 1st and the 2nd setting device, and the 2nd decision maker judges work piece configuration when operating position, output is used to connect the device of the control signal of electric screw driver power supply.
23. prevent to forget the tighten the screws device as claim 21 or 22 records, it is characterized in that also having: when the 1st decision maker judged that the residual number of packages of the residual number of packages of whole parts and screw-clamped is 0, output was used to turn-off the device of the control signal of electric screw driver power supply.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003273253A JP3998614B2 (en) | 2003-07-11 | 2003-07-11 | Screw-forgetting prevention device |
| JP273253/2003 | 2003-07-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1577191A CN1577191A (en) | 2005-02-09 |
| CN100511043C true CN100511043C (en) | 2009-07-08 |
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ID=34210543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100794089A Active CN100511043C (en) | 2003-07-11 | 2004-07-12 | Apparatus for preventing screw from being forgotten tightening |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3998614B2 (en) |
| KR (1) | KR100652542B1 (en) |
| CN (1) | CN100511043C (en) |
| TW (1) | TWI258063B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5037284B2 (en) * | 2006-10-03 | 2012-09-26 | シャープ株式会社 | Screw tightening number management system, screw tightening number management method, program for causing a computer to execute the screw tightening number management method, and a recording medium recording the program |
| JP4704373B2 (en) * | 2007-02-21 | 2011-06-15 | 日本電産トーソク株式会社 | Assembly method |
| JP5475532B2 (en) * | 2010-04-16 | 2014-04-16 | 三菱電線工業株式会社 | Work unit |
| CN103659250A (en) * | 2012-09-25 | 2014-03-26 | 上海电装燃油喷射有限公司 | Method for assembling front shell component and pump body of diesel engine fuel oil injection pump in connected mode |
| US9156148B2 (en) * | 2013-05-10 | 2015-10-13 | Snap-On Incorporated | Preset electronic torque tool |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343785A (en) * | 1991-10-23 | 1994-09-06 | Emerson Electric Co. | Ultrasonic bolting control apparatus |
| JP2000047705A (en) * | 1998-07-28 | 2000-02-18 | Hitachi Ltd | Operation instruction device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2799820B2 (en) * | 1993-09-17 | 1998-09-21 | マルホン工業株式会社 | Pachinko machine |
| KR960011081B1 (en) * | 1993-12-09 | 1996-08-20 | 아시아자동차공업 주식회사 | Control device for a bolting machine |
| KR200163955Y1 (en) * | 1997-07-01 | 2000-01-15 | 배섭 | Control device for dc motor-driver |
| JP2001009750A (en) | 1999-06-30 | 2001-01-16 | Tohnichi Mfg Co Ltd | Information offering method at screw fastening work time |
| KR20010046851A (en) * | 1999-11-16 | 2001-06-15 | 이계안 | Bolting system and bolting control method for vehicles |
| JP2002160176A (en) * | 2000-11-27 | 2002-06-04 | Fujitsu I-Network Systems Ltd | Robot turning screw-like object |
| JP2002258901A (en) | 2001-02-27 | 2002-09-13 | Okuma Corp | Controller for parallel mechanism machine |
| JP2003123050A (en) | 2001-10-09 | 2003-04-25 | Sugisaki Keiki Kk | Counting device for use frequency of electric equipment |
-
2003
- 2003-07-11 JP JP2003273253A patent/JP3998614B2/en not_active Expired - Fee Related
-
2004
- 2004-07-06 KR KR1020040052160A patent/KR100652542B1/en active IP Right Grant
- 2004-07-12 TW TW093120808A patent/TWI258063B/en active
- 2004-07-12 CN CNB2004100794089A patent/CN100511043C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343785A (en) * | 1991-10-23 | 1994-09-06 | Emerson Electric Co. | Ultrasonic bolting control apparatus |
| JP2000047705A (en) * | 1998-07-28 | 2000-02-18 | Hitachi Ltd | Operation instruction device |
Non-Patent Citations (2)
| Title |
|---|
| DE19650926A 1997.06.12 |
| US5343785A 1994.09.06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3998614B2 (en) | 2007-10-31 |
| TWI258063B (en) | 2006-07-11 |
| CN1577191A (en) | 2005-02-09 |
| KR20050007136A (en) | 2005-01-17 |
| JP2005028551A (en) | 2005-02-03 |
| KR100652542B1 (en) | 2006-12-06 |
| TW200513816A (en) | 2005-04-16 |
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