CN104932588A - Control system and control method for controlling pressure and position of resistance welding machine - Google Patents
Control system and control method for controlling pressure and position of resistance welding machine Download PDFInfo
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- CN104932588A CN104932588A CN201510252844.XA CN201510252844A CN104932588A CN 104932588 A CN104932588 A CN 104932588A CN 201510252844 A CN201510252844 A CN 201510252844A CN 104932588 A CN104932588 A CN 104932588A
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Abstract
The invention discloses a control system and a control method for controlling the pressure and the position of a resistance welding machine. The system comprises an input unit, a control unit, a communication type servo motor, a pressurization screw, a pressurization unit and a positioning unit. The communication type servo motor feeds back the pressure and the position of the resistance welding machine to the control unit in real time. The control unit acquires the pressure threshold and the position threshold of the resistance welding machine from the positioning unit, and judges whether the pressure threshold and the position threshold of the resistance welding machine reach a preset pressure threshold and a preset position threshold correspondingly or not, wherein the preset pressure threshold and the preset position threshold are input by a user through the input unit. If the pressure threshold and the position threshold of the resistance welding machine correspondingly reach the preset pressure threshold and the preset position threshold, the control unit starts to discharge electricity and melt workpieces. At the same time, a preset pressurization pressure is applied to ensure the adhesion strength. When the position threshold of the resistance welding machine reaches the preset position threshold, the communication type servo motor no longer drives the pressurization screw. In this way, the pressurization screw stops driving the pressurization unit to pressurize workpieces. Therefore, the pressure and the position of the resistance welding machine within each stroke can be accurately controlled. Meanwhile, workpieces are prevented from being crushed flat.
Description
Technical field
The present invention relates to resistance welder technical field, particularly relate to a kind of pressure of resistance welder and position control system and control method.
Background technology
At present, in resistance welded, prior art has two kinds: one to pressurize for utilizing cylinder, two do position control for utilizing servo, and workpiece is pressurizeed using spring as pressure source, its advantage comes stable than cylinder pressurization, the impact of air pressure size can not be subject to and then affect welding quality, shortcoming is that pressure size controls by spring, and cannot learn that spring is applied with great strength, and cannot the pressure size and location of each section of Discrete control, the pressure Force location of every LAP cannot be controlled accurately, thus easily produce the problem of insufficient pressure or flattening workpiece.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of can the accurately pressure of resistance welder of the pressure Force location of every LAP of controlling resistance welding and position control system and control method.
The present invention is achieved in that a kind of pressure and position control system of resistance welder, comprises input block, control module, communication type servo motor, pressurization screw mandrel, presser unit and positioning unit;
Described input block is used for pressure and the position thresholding that user inputs default described resistance welder;
Described control module is connected with described input block, for receiving pressure and the position thresholding of the described resistance welder preset of described input block input, and according to the pressure of the described resistance welder received and position thresholding, generate the drive singal driving described communication type servo motor to rotate, drive described pressurization screw mandrel to make described communication type servo motor and then drive described presser unit to pressurize to workpiece;
Described pressurization screw mandrel is connected with described communication servo motor, moves to drive described presser unit to pressurize to described workpiece for the rotation with described communication type servo motor;
Described presser unit is connected with described pressurization screw mandrel, moves to pressurize to described workpiece for the motion with described pressurization screw mandrel;
Described communication type servo motor is connected with described positioning unit, the drive singal that the described communication servo motor of driving generated for responding described control module rotates, to make described communication servo motor drive described pressurization screw mandrel and then drive described presser unit to pressurize to workpiece, the pressure simultaneously described presser unit pressurizeed to described workpiece and position thresholding real-time Transmission give described positioning unit;
Described control module is connected with described positioning unit, for obtaining the pressure and position thresholding that described presser unit in described positioning unit pressurizes to described workpiece, and the pressure preset inputted by described input block in conjunction with described user and position thresholding, judge whether the pressure that described presser unit is pressurizeed to described workpiece and position thresholding reach default pressure or position thresholding; If when described control module judges that described presser unit reaches default pressure thresholding to the pressure thresholding that described workpiece pressurizes, then described control module starts to discharge workpiece described in welding, and after the position thresholding of pressurizeing to described workpiece when described presser unit reaches preposition thresholding, described control module generates stop signal that described communication type servo motor stops operating to described communication type servo motor through described positioning unit, stops driving described pressurization screw mandrel and then stopping driving described presser unit to pressurize to described workpiece to make described communication type servo motor; If when described control module judges that described presser unit does not reach default pressure thresholding to the pressure thresholding that described workpiece pressurizes, the then described control module described presser unit that continues to obtain described communication type servo motor real-time Transmission from described positioning unit pressure that described workpiece is pressurizeed and position thresholding, and the pressure preset inputted by described input block in conjunction with described user and position thresholding, judge whether the pressure that the described presser unit that again obtains from described positioning unit is pressurizeed to described workpiece and position thresholding reach default pressure and position thresholding.
Particularly, described control module and positioning unit are all arranged in the electric cabinet of described resistance welder.
Particularly, described input block comprises display screen on the electric cabinet that is arranged in described resistance welder and button.
Particularly, the pressure of described resistance welder and position thresholding specifically comprise: electric discharge moment of torsion thresholding, pressurization moment of torsion thresholding and pressing position thresholding.
Particularly, described control module is PLC logic controller.
On the other hand, provide a kind of pressure and position control method of resistance welder, comprise the following steps:
Control module receives pressure and the position thresholding of the described resistance welder preset that user is inputted by described input block, and according to the pressure of the described resistance welder received and position thresholding, generate the drive singal driving described communication type servo motor to rotate, drive described pressurization screw mandrel to make described communication type servo motor and then drive described presser unit to pressurize to workpiece;
When described presser unit is pressed onto described workpiece, the pressure that described presser unit is pressurizeed to described workpiece by described communication type servo motor and position thresholding real-time Transmission give described positioning unit;
Described control module obtains the pressure and position thresholding that described presser unit in described positioning unit pressurizes to described workpiece, and the pressure preset inputted by described input block in conjunction with described user and position thresholding, judge whether the pressure that described presser unit is pressurizeed to described workpiece and position thresholding reach default pressure or position thresholding;
If when described control module judges that described presser unit reaches default pressure thresholding to the pressure thresholding that described workpiece pressurizes, then described control module starts to discharge workpiece described in welding, and after the position thresholding of pressurizeing to described workpiece when described presser unit reaches preposition thresholding, described positioning unit generates stop signal that described communication type servo motor stops operating to described communication type servo motor, stops driving described pressurization screw mandrel and then stopping driving described presser unit to pressurize to described workpiece to make described communication type servo motor.
Particularly, described control module receives pressure and the position thresholding of the described resistance welder preset that user is inputted by described input block, and according to the pressure of the described resistance welder received and position thresholding, generate the drive singal driving described communication type servo motor to rotate, drive described pressurization screw mandrel to make described communication type servo motor and then drive described presser unit also to comprise after workpiece pressurization steps:
Described communication type servo motor responds the drive singal that described control module rotates through the described communication type servo motor of driving that described positioning unit generates, and drives described pressurization screw mandrel and then drives described presser unit to pressurize to workpiece; The pressure described presser unit pressurizeed to described workpiece with Time and position thresholding real-time Transmission give described positioning unit;
Described pressurization screw mandrel moves to drive described presser unit to pressurize to described workpiece with the rotation of described communication type servo motor;
Described presser unit moves to pressurize to described workpiece with the motion of described pressurization screw mandrel.
Particularly, if when described control module judges that described presser unit does not reach default pressure thresholding to the pressure thresholding that described workpiece pressurizes, the then described control module described presser unit that continues to obtain described communication type servo motor real-time Transmission from described positioning unit pressure that described workpiece is pressurizeed and position thresholding, and in conjunction with described user by described input block input preset pressure and position thresholding, judge whether the pressure that the described presser unit that again obtains from described positioning unit is pressurizeed to described workpiece and position thresholding reach default pressure or position thresholding.
Particularly, the pressure of described resistance welder and position thresholding specifically comprise: electric discharge moment of torsion thresholding, pressurization moment of torsion thresholding and pressing position thresholding.
Beneficial effect of the present invention is: the pressure of resistance welder provided by the invention and position control system and control method, its communication type servo motor can by the pressure of resistance welder and position thresholding Real-time Feedback to positioning unit, so that the pressure of control module resistance welder of obtaining communication type servo motor feedback from positioning unit and position thresholding, and the preset pressure inputted by input block in conjunction with user and position thresholding, judge whether pressure and the position thresholding of resistance welder reach default pressure or position thresholding, if, then control module starts the welding workpiece that discharges, and after the position thresholding of resistance welder reaches preposition thresholding, control module generates stop signal that communication type servo motor stops operating to communication type servo motor through positioning unit, stop making communication type servo motor driving pressurization screw mandrel and then stopping driving presser unit to pressurize to workpiece, like this, can the pressure Force location of every LAP of controlling resistance welding machine accurately, avoid flattening workpiece.
Accompanying drawing explanation
Fig. 1 is a kind of pressure of resistance welder of providing of one embodiment of the invention and the structural representation of position control system.
Fig. 2 is a kind of pressure of resistance welder of providing of one embodiment of the invention and the schematic flow sheet of position control method.
Fig. 3 is the pressure of another kind of resistance welder that provides of one embodiment of the invention and the schematic flow sheet of position control method.
Fig. 4 is the pressure of another resistance welder that one embodiment of the invention provides and the schematic flow sheet of position control method.
Embodiment
In order to make technical matters solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment one
As shown in Figure 1, a kind of pressure of resistance welder and position control system, comprise input block 101, control module 102, communication type servo motor 103, pressurization screw mandrel 104, presser unit 105 and positioning unit 105;
Input block 101 inputs pressure and the position thresholding of default resistance welder for user; Control module 102 is connected with input block 101, for receiving pressure and the position thresholding of the resistance welder preset that input block 101 inputs, and according to the pressure of the resistance welder received and position thresholding, generate the drive singal driving communication type servo motor 103 to rotate, drive pressurization screw mandrel 104 to make communication type servo motor 103 and then drive presser unit 105 to pressurize to workpiece; Pressurization screw mandrel 104 serves motor 103 to be connected with communication, moves to drive presser unit 105 to pressurize to workpiece for the rotation with communication type servo motor 103; Presser unit 105 is connected with pressurization screw mandrel 104, moves to pressurize to workpiece for the motion with pressurization screw mandrel 104; Communication type servo motor 103 is connected with positioning unit 106, for the turn signal that the driving communication of response control unit 102 generation serves motor 103 to rotate, serve motor 103 to drive pressurization screw mandrel 104 to make communication and then drive presser unit 105 to workpiece pressurization, the pressure simultaneously pressurizeed by presser unit 105 pairs of workpiece and position thresholding real-time Transmission are to positioning unit 106; Control module 102 is connected with positioning unit 106, for obtaining pressure and the position thresholding of the presser unit 105 pairs of workpiece pressurizations in positioning unit 106, and the pressure preset inputted by described input block 101 in conjunction with user and position thresholding, judge whether the pressure that the presser unit 105 pairs of workpiece pressurize and position thresholding reach default pressure or position thresholding; If when control module 102 judges that the pressure thresholding of presser unit 105 pairs of workpiece pressurizations reaches default pressure thresholding, then control module 102 starts the welding workpiece that discharges, and after the position thresholding of presser unit 105 pairs of workpiece pressurizations reaches preposition thresholding, control module 102 generates stop signal that communication type servo motor 103 stops operating to communication type servo motor 103 through positioning unit 106, stops driving pressurization screw mandrel 104 and then stopping driving presser unit 105 to pressurize to workpiece to make communication type servo motor 103; If when control module 102 judges that the pressure thresholding of presser unit 105 pairs of workpiece pressurizations does not reach default pressure thresholding, then control module 102 continues pressure and the position thresholding of presser unit 105 pairs of workpiece pressurizations of obtaining communication type servo motor 103 real-time Transmission from positioning unit 106, and the pressure preset inputted by input block 101 in conjunction with user and position thresholding, judge whether the pressure of the presser unit that again obtains from positioning unit 106 105 pairs of workpiece pressurizations and position thresholding reach default pressure or position thresholding.
Further, control module 102 and positioning unit 106 are all arranged in the electric cabinet of resistance welder.
Further, input block 101 comprises display screen on the electric cabinet that is arranged in resistance welder and button.
Preferably, pressure and the position thresholding of resistance welder specifically comprise: electric discharge moment of torsion thresholding, pressurization moment of torsion thresholding and pressing position thresholding, wherein, electric discharge moment of torsion thresholding, pressurization moment of torsion thresholding and pressing position thresholding are that user is put and set by the display screen on the electric cabinet in resistance welder and button, such as, electric discharge moment of torsion field value set 20KG, pressurization moment of torsion thresholding 30KG and pressing position 5MM, then the tungsten bar of resistance welder can with the strength of 20KG to pressing down, when being pressed onto workpiece, when the strength that communication type servo motor 103 feeds back to control module 102 reaches more than 20KG, control module 102 starts the strength pressurization maintenance stickability that electric discharge welding applies 30KG simultaneously, meanwhile, tungsten bar can be depressed into the position of 5MM, wherein, electric discharge moment of torsion thresholding refers to the strength that communication servo motor 103 exports.
Preferably, described control module is PLC.
The pressure of resistance welder provided by the invention and position control system, its communication type servo motor 103 can by the pressure of resistance welder and position thresholding Real-time Feedback to positioning unit 106, so that the pressure of control module 102 resistance welder of obtaining communication type servo motor 103 feedback from positioning unit 106 and position thresholding, and the preset pressure inputted by input block 101 in conjunction with user and position thresholding, judge whether pressure and the position thresholding of resistance welder reach default pressure or position thresholding, if, then control module 102 starts the welding workpiece that discharges, and after the position thresholding of resistance welder reaches preposition thresholding, control module 102 generates stop signal that communication type servo motor 103 stops operating to communication type servo motor 103 through positioning unit 106, stop making communication type servo motor 103 driving pressurization screw mandrel 104 and then stopping driving presser unit 105 to pressurize to workpiece, like this, can the pressure Force location of every LAP of controlling resistance welding machine accurately, avoid flattening workpiece.
Embodiment two
As shown in Fig. 2, the pressure of a kind of resistance welder of the present embodiment and position control method, comprise the steps:
S201, control module receives pressure and the position thresholding of the resistance welder preset that user is inputted by input block, and according to the pressure of the resistance welder received and position thresholding, generate the drive singal driving communication type servo motor to rotate, drive pressurization screw mandrel to make communication type servo motor and then drive presser unit to pressurize to workpiece;
Particularly, control module receives pressure and the position thresholding of the resistance welder preset that user is inputted by input block, and according to the pressure of the resistance welder received and position thresholding, generate the drive singal driving communication type servo motor to rotate, drive pressurization screw mandrel to make communication type servo motor and then drive presser unit also to comprise after workpiece pressurization steps:
The drive singal that the driving communication type servo motor that communication type servo motor response control unit generates through positioning unit rotates, drive pressurization screw mandrel and then drive presser unit to pressurize to workpiece, the pressure simultaneously presser unit pressurizeed to workpiece and position thresholding real-time Transmission are to positioning unit;
Pressurization screw mandrel moves to drive presser unit to pressurize to workpiece with the rotation of communication type servo motor;
Presser unit moves to pressurize to workpiece with the motion of pressurization screw mandrel.
S202, when presser unit is pressed onto workpiece, the pressure that presser unit is pressurizeed to workpiece by communication type servo motor and position thresholding real-time Transmission are to positioning unit;
S203, control module obtains the pressure and position thresholding that presser unit in positioning unit pressurizes to workpiece, and the pressure preset inputted by input block in conjunction with user and position thresholding, judge whether the pressure that presser unit is pressurizeed to workpiece and position thresholding reach default pressure or position thresholding;
S204, if when control module judges that presser unit reaches default pressure thresholding to the pressure thresholding that workpiece pressurizes, then control module starts the welding workpiece that discharges, and after the position thresholding of pressurizeing to workpiece when presser unit reaches preposition thresholding, the stop signal that control module generation communication type servo motor stops operating, to communication type servo motor, stops making communication type servo motor driving pressurization screw mandrel and then stopping drive presser unit to pressurize to workpiece.
The pressure of resistance welder provided by the invention and position control system, its communication type servo motor can by the pressure of resistance welder and position thresholding Real-time Feedback to positioning unit, so that the pressure of control module resistance welder of obtaining communication type servo motor feedback from positioning unit and position thresholding, and the preset pressure inputted by input block in conjunction with user and position thresholding, judge whether pressure and the position thresholding of resistance welder reach default pressure or position thresholding, if, then control module starts the welding workpiece that discharges, and after the position thresholding of resistance welder reaches preposition thresholding, the stop signal that control module generation communication type servo motor stops operating is to communication type servo motor, stop making communication type servo motor driving pressurization screw mandrel and then stopping driving presser unit to pressurize to workpiece, like this, can the pressure Force location of every LAP of controlling resistance welding machine accurately, avoid flattening workpiece.
Embodiment three
As shown in Fig. 3, the pressure of the another kind of resistance welder of the present embodiment and position control method, comprise the steps:
S301, control module receives pressure and the position thresholding of the resistance welder preset that user is inputted by input block, and according to the pressure of the resistance welder received and position thresholding, generate the drive singal driving communication type servo motor to rotate through positioning unit, drive pressurization screw mandrel to make communication type servo motor and then drive presser unit to pressurize to workpiece;
S302, communication type servo motor response control unit serves the signal of revolution by the driving communication that positioning unit generates, drive pressurization screw mandrel and then drive described presser unit to pressurize to workpiece, the pressure simultaneously described presser unit pressurizeed to workpiece and position thresholding real-time Transmission are to positioning unit;
S303, pressurization screw mandrel moves to drive presser unit to pressurize to workpiece with the rotation of communication type servo motor;
S304, presser unit moves to pressurize to workpiece with the motion of pressurization screw mandrel;
S305, control module obtains the pressure and position thresholding that presser unit in positioning unit pressurizes to workpiece, and the pressure preset inputted by input block in conjunction with user and position thresholding, judge whether the pressure that presser unit is pressurizeed to workpiece and position thresholding reach default pressure or position thresholding;
S306, if when control module judges that presser unit reaches default pressure thresholding to the pressure thresholding that workpiece pressurizes, then control module starts the welding workpiece that discharges, and after the position thresholding of pressurizeing to workpiece when presser unit reaches preposition thresholding, the stop signal that control module generation communication type servo motor stops operating, to communication type servo motor, stops making communication type servo motor driving pressurization screw mandrel and then stopping drive presser unit to pressurize to workpiece.
Particularly, the pressure of resistance welder and position thresholding specifically comprise: electric discharge moment of torsion thresholding, pressurization moment of torsion thresholding and pressing position thresholding.
Embodiment four
As shown in Figure 4, the pressure of another resistance welder of the present embodiment and position control method, comprise the steps:
S401, control module receives pressure and the position thresholding of the resistance welder preset that user is inputted by input block, and according to the pressure of the resistance welder received and position thresholding, generate the drive singal driving communication type servo motor to rotate, drive pressurization screw mandrel to make communication type servo motor and then drive presser unit to pressurize to workpiece;
Particularly, control module receives pressure and the position thresholding of the resistance welder preset that user is inputted by input block, and according to the pressure of the resistance welder received and position thresholding, generate the drive singal driving communication type servo motor to rotate, drive pressurization screw mandrel to make communication type servo motor and then drive presser unit also to comprise after workpiece pressurization steps:
The drive singal that the driving communication servo motor that communication type servo motor response control unit generates through positioning unit rotates, drive pressurization screw mandrel and then drive presser unit to pressurize to workpiece, the pressure simultaneously presser unit pressurizeed to workpiece and position thresholding real-time Transmission are to positioning unit;
Pressurization screw mandrel moves to drive presser unit to pressurize to workpiece with the rotation of communication type servo motor;
Presser unit moves to pressurize to workpiece with the motion of pressurization screw mandrel.
S402, when presser unit is pressed onto workpiece, the pressure that presser unit is pressurizeed to workpiece by communication type servo motor and position thresholding real-time Transmission are to positioning unit;
S403, control module obtains the pressure and position thresholding that presser unit in positioning unit pressurizes to workpiece, and the pressure preset inputted by input block in conjunction with user and position thresholding, judge whether the pressure that presser unit is pressurizeed to workpiece and position thresholding reach default pressure or position thresholding;
S404, if when control module judges that described presser unit does not reach default pressure thresholding to the pressure thresholding that workpiece pressurizes, the pressure that the presser unit that then control module continues obtaining communication type servo motor real-time Transmission from positioning unit is pressurizeed to workpiece and position thresholding, and the pressure preset inputted by input block in conjunction with user and position thresholding, judge whether the pressure that the presser unit that again obtains from positioning unit is pressurizeed to workpiece and position thresholding reach default pressure or position thresholding.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the pressure of resistance welder and a position control system, is characterized in that, comprises input block, control module, communication type servo motor, pressurization screw mandrel, presser unit and positioning unit;
Described input block is used for pressure and the position thresholding that user inputs default described resistance welder;
Described control module is connected with described input block, for receiving pressure and the position thresholding of the described resistance welder preset of described input block input, and according to the pressure of the described resistance welder received and position thresholding, generate the drive singal driving described communication type servo motor to rotate, drive described pressurization screw mandrel to make described communication type servo motor and then drive described presser unit to pressurize to workpiece;
Described pressurization screw mandrel is connected with described communication servo motor, moves to drive described presser unit to pressurize to described workpiece for the rotation with described communication type servo motor;
Described presser unit is connected with described pressurization screw mandrel, moves to pressurize to described workpiece for the motion with described pressurization screw mandrel;
Described communication type servo motor is connected with described positioning unit, the drive singal that the described communication servo motor of driving generated for responding described control module rotates, to make described communication servo motor drive described pressurization screw mandrel and then drive described presser unit to pressurize to workpiece, the pressure simultaneously described presser unit pressurizeed to described workpiece and position thresholding real-time Transmission give described positioning unit;
Described control module is connected with described positioning unit, for obtaining the pressure and position thresholding that described presser unit in described positioning unit pressurizes to described workpiece, and the pressure preset inputted by described input block in conjunction with described user and position thresholding, judge whether the pressure that described presser unit is pressurizeed to described workpiece and position thresholding reach default pressure or position thresholding; If when described control module judges that described presser unit reaches default pressure thresholding to the pressure thresholding that described workpiece pressurizes, then described control module starts to discharge workpiece described in welding, and after the position thresholding of pressurizeing to described workpiece when described presser unit reaches preposition thresholding, described control module generates stop signal that described communication type servo motor stops operating to described communication type servo motor through described positioning unit, stops driving described pressurization screw mandrel and then stopping driving described presser unit to pressurize to described workpiece to make described communication type servo motor; If when described control module judges that described presser unit does not reach default pressure thresholding to the pressure thresholding that described workpiece pressurizes, the then described control module described presser unit that continues to obtain described communication type servo motor real-time Transmission from described positioning unit pressure that described workpiece is pressurizeed and position thresholding, and the pressure preset inputted by described input block in conjunction with described user and position thresholding, judge whether the pressure that the described presser unit that again obtains from described positioning unit is pressurizeed to described workpiece and position thresholding reach default pressure and position thresholding.
2. the pressure of resistance welder according to claim 1 and position control system, it is characterized in that, described control module and positioning unit are all arranged in the electric cabinet of described resistance welder.
3. the pressure of resistance welder according to claim 2 and position control system, is characterized in that, described input block comprises display screen on the electric cabinet that is arranged in described resistance welder and button.
4. the pressure of resistance welder according to claim 1 and position control system, it is characterized in that, pressure and the position thresholding of described resistance welder specifically comprise: electric discharge moment of torsion thresholding, pressurization moment of torsion thresholding and pressing position thresholding.
5. the pressure of resistance welder according to claim 1 and position control system, it is characterized in that, described control module is PLC logic controller.
6. the pressure of resistance welder and a position control method, is characterized in that, comprise the following steps:
Control module receives pressure and the position thresholding of the described resistance welder preset that user is inputted by described input block, and according to the pressure of the described resistance welder received and position thresholding, generate the drive singal driving described communication type servo motor to rotate, drive described pressurization screw mandrel to make described communication type servo motor and then drive described presser unit to pressurize to workpiece;
When described presser unit is pressed onto described workpiece, the pressure that described presser unit is pressurizeed to described workpiece by described communication type servo motor and position thresholding real-time Transmission give described positioning unit;
Described control module obtains the pressure and position thresholding that described presser unit in described positioning unit pressurizes to described workpiece, and the pressure preset inputted by described input block in conjunction with described user and position thresholding, judge whether the pressure that described presser unit is pressurizeed to described workpiece and position thresholding reach default pressure or position thresholding;
If when described control module judges that described presser unit reaches default pressure thresholding to the pressure thresholding that described workpiece pressurizes, then described control module starts to discharge workpiece described in welding, and after the position thresholding of pressurizeing to described workpiece when described presser unit reaches preposition thresholding, described positioning unit generates stop signal that described communication type servo motor stops operating to described communication type servo motor, stops driving described pressurization screw mandrel and then stopping driving described presser unit to pressurize to described workpiece to make described communication type servo motor.
7. the pressure of resistance welder according to claim 6 and position control method, it is characterized in that, described control module receives pressure and the position thresholding of the described resistance welder preset that user is inputted by described input block, and according to the pressure of the described resistance welder received and position thresholding, generate the drive singal driving described communication type servo motor to rotate, drive described pressurization screw mandrel to make described communication type servo motor and then drive described presser unit also to comprise after workpiece pressurization steps:
Described communication type servo motor responds the drive singal that described control module rotates through the described communication servo motor of driving that described positioning unit generates, drive described pressurization screw mandrel and then drive described presser unit to pressurize to workpiece, the pressure described presser unit pressurizeed to described workpiece with Time and position thresholding real-time Transmission give described positioning unit;
Described pressurization screw mandrel moves to drive described presser unit to pressurize to described workpiece with the rotation of described communication type servo motor;
Described presser unit moves to pressurize to described workpiece with the motion of described pressurization screw mandrel.
8. the pressure of resistance welder according to claim 6 and position control method, it is characterized in that, if when described control module judges that described presser unit does not reach default pressure thresholding to the pressure thresholding that described workpiece pressurizes, the then described control module described presser unit that continues to obtain described communication type servo motor real-time Transmission from described positioning unit pressure that described workpiece is pressurizeed and position thresholding, and in conjunction with described user by described input block input preset pressure and position thresholding, judge whether the pressure that the described presser unit that again obtains from described positioning unit is pressurizeed to described workpiece and position thresholding reach default pressure or position thresholding.
9. the pressure of resistance welder according to claim 6 and position control method, it is characterized in that, pressure and the position thresholding of described resistance welder specifically comprise: electric discharge moment of torsion thresholding, pressurization moment of torsion thresholding and pressing position thresholding.
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Application publication date: 20150923 |