CN106271568A - Automobile damper compression valve automatic tightening rotated riveting device and control method thereof - Google Patents
Automobile damper compression valve automatic tightening rotated riveting device and control method thereof Download PDFInfo
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- CN106271568A CN106271568A CN201610702337.6A CN201610702337A CN106271568A CN 106271568 A CN106271568 A CN 106271568A CN 201610702337 A CN201610702337 A CN 201610702337A CN 106271568 A CN106271568 A CN 106271568A
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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
- B23P19/065—Arrangements for torque limiters or torque indicators in screw or nut setting machines
- B23P19/066—Arrangements for torque limiters or torque indicators in screw or nut setting machines by electrical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
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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
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
- B23P21/004—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control the units passing two or more work-stations whilst being composed
- B23P21/006—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control the units passing two or more work-stations whilst being composed the conveying means comprising a rotating table
Abstract
The present invention relates to a kind of automobile damper compression valve automatic tightening rotated riveting device, this device includes that machinery is tightened rotation riveting part and automatically controls part, machinery is tightened rotation riveting part and is included: workbench, dispenser, station turnplate, servo wrench tightening mechanism, automatic riveter structure, box collected by Pneumatic manipulator and workpiece, wherein, the table top of workbench is fixed with station turnplate, several stations and the frock being inlaid on station it is laid with on station turnplate, it is provided with dispenser in the bottom of table surface, dispenser is connected with frequency control motor, servo spanner tightening mechanism it is fixed with respectively outside the workbench that station is corresponding on station turnplate, automatic riveter structure, box collected by Pneumatic manipulator and workpiece.This device coordinates control method can realize the continuous automatic tightening rotation riveting of compression valve assembly, and can improve and tighten rotation riveting speed and accuracy, have the minimizing operating time, tighten revolve riveting precision height, reliable in action, concordance by force, low cost and other advantages.
Description
Technical field
The invention belongs to auto parts machinery technical field of processing equipment, particularly a kind of automobile damper compression valve automatic tightening
Rotated riveting device and control method thereof.
Background technology
Vehicle shock absorber is to ensure that one of critical piece of automobile ride comfort under steam and comfortableness, at present, automobile
Mostly the vibroshock used in suspension system is hydraulic shock absorber, and shock absorber compression valve is parts on hydraulic shock absorber,
These parts are by compensating valve block assembly, compression valve seat, compression throttling valve block, compression valve block, compression valve pad and compression valve bolt
Tightening rotation riveting together according to certain assemble sequence, it is a critical component of vibroshock.Carrying out shock absorber compression valve
When the assembling of each part screws, its size screwing strength there are strict technology requirement, the coherence request to parts
The strictest, if it is excessive to screw strength, cause part deformation: screw power too small, it is impossible to twist and be pressed onto position, can be to the property of vibroshock
Can impact.It addition, compression valve of shock absorber is revolved riveting quality also have strict regulation, the mistake that any one assembles
The performance of vibroshock will be had undesirable effect, not reach intended effectiveness in vibration suppression, time serious, even can cause vibroshock
Damage is scrapped.
In the prior art, compression valve of shock absorber is through manual operation in the front one procedure tightening rotation riveting, pressure
All parts of contracting valve are linked together according to the order of technological requirement, claim to couple operation in advance, through the compression valve group of pre-connection
First part is placed on screwing tool by operative employee, then holds the nut on pinch bar alignment compression valve assembly, then by servo
Spanner is tightened.Tightening later compression valve assembly and be transferred to by riveter, another operative employee is the compression valve tightened
Assembly is placed on rotation riveting tool and carries out revolving riveter work.Manually tighten rotation riveting and there is the problem that one is inefficient, and need two
Operative employee more than name operates；Two is the difference in operator proficiency level and individual technical merit it is difficult to ensure that product matter
The concordance of amount and qualification.
Summary of the invention
It is an object of the invention to provide a kind of compression valve of shock absorber that is capable of and tighten, revolve the automatization of riveting, and can guarantee that
Tighten, revolve quality and the concordance of riveting, and the automobile damper compression valve automatic tightening rotated riveting device that efficiency is high, highly reliable.
Another object of the present invention is to provide a kind of control for automobile damper compression valve automatic tightening rotated riveting device
Method.
Realize the purpose of the present invention to be adopted the technical scheme that: this device includes that machinery tightens rotation riveting part and control automatically
Part processed, machinery tighten rotation riveting part include: workbench, station turnplate, frequency control motor, dispenser, servo wrench twist
Box collected by tight mechanism, automatic riveter structure, Pneumatic manipulator and workpiece, wherein, is fixed with station on the table top of workbench
Rotating disk, station turnplate is laid with several stations, and station is embedded with the frock for tightening rotation riveting contracting valve module,
Being provided with dispenser in the bottom of table surface, the power shaft of dispenser is connected with frequency control motor by shaft coupling, output
Axle is connected with the rotating shaft of station turnplate, is fixed with on station turnplate on the work top of one of them station correspondence side
Servo spanner automatic tightening mechanism, is fixed with automatic riveter structure, with it on the work top of another station correspondence side
It is fixed with Pneumatic manipulator on the work top of adjacent next station correspondence side and is positioned at the work at Pneumatic manipulator rear portion
Part collects box；
Automatically control part to include:
One programmable logic controller (PLC) (hereinafter referred to as PLC), is master control unit, including CPU arithmetic processor and can work out journey
The memorizer of sequence, be used for performing storing logical operations and sequential control, regularly, counting and calculation process Various types of data information,
And send the instruction of operation, by numeral or the input port of simulation and output port, control station turnplate in production process
Rotating location action, automatic tightening, rotation riveting action and the action of automatic clamping and placing workpiece, PLC, with a RS232 port, uses
In being connected with computer, and write by computer, revise control program；
One converter, is connected with the output port of PLC by wire, changes output frequency for accepting the instruction of PLC, according to
The output frequency of converter controls operation revolution and the movement angle of dispenser of frequency control motor, and controls frequency control
The opening of motor, stop；
One station inductive switch, is connected with the input port of PLC by wire, and station inductive switch is installed by a support
In the side of dispenser power shaft, for the identification of dispenser angle of operation position, when dispenser drives station turnplate every turn
During a dynamic station, station inductive switch is issued by the operating signal that puts in place to PLC, and meanwhile, PLC sends start and stop instruction, becomes
Frequency modulation speed motor turns and stops；
One spanner puts in place inductive switch, is connected with PLC by data wire, and the spanner inductive switch that puts in place is arranged on servo wrench and twists
The side of spanner support, the identification of the signal that puts in place for spanner in tight mechanism；
One servoboard hand controls, the supporting side being arranged on servo wrench automatic screwing device structure, this controller passes through data
Line is connected with PLC and computer, can realize the automatic tightening of compression valve of shock absorber, and entered by computer under the instruction of PLC
Row sets, inquiry change screw-down torque, upper and lower tolerance are arranged, tighten angle, tighten the adjustment of speed, and the history number set
It is investigated and ask and the function of defective output of reporting to the police；
One rotation riveting controller, is arranged on the side of riveter, and rotation riveting controller is connected with PLC and computer by data wire,
Can realize the automatic rotary riveting of compression valve of shock absorber under the instruction of PLC, and by computer carry out revolving riveting speed, the rotation riveting time,
The adjustment of rotation riveting power；
Five electric control valves, concentrate and are packed in (not shown) in the valve member fixed plate of side, workbench 1 bottom, and electric control valve leads to
Cross the connection of wire and the output port of PLC, be respectively used in control automatic tightening mechanism, automatic riveter structure 8 and pneumatic
The motion of each cylinder in mechanical hand.
Described servo wrench automatic screwing device structure includes spanner support, servo spanner, spanner connecting rod, tightens sleeve, guide rod,
Active plate and for control servo spanner move up and down wrench cylinder, wherein, wrench cylinder is packed in spanner support
Outside, spanner support is provided with guide rod and installs the active plate being connected with guide rod, and one end of active plate is stretched out
Frame is outer to be connected with the piston rod of wrench cylinder and interlocks, and servo spanner installs and is fixed on active plate, under servo spanner
Portion is connected by spanner connecting rod tightens sleeve, can do with piston rod and be synchronized with the movement up and down, and wrench cylinder passes through gas pipeline with outer
The air compressor in portion connects.
Described automatic riveter structure is made up of riveter, rotation riveting support, rotation riveting cylinder, rotation die, wherein, revolves riveting support
It is bolted on the table top of workbench, rotation riveting support is fixed with riveter and rotation riveting cylinder, the piston of rotation riveting cylinder
Bar is connected by connector with the rotation die of riveter and interlocks, and rotation die is press-fited the position phase of workpiece on station turnplate
Correspondence, rotation riveting cylinder is connected with outside air compressor by gas pipeline.
Described Pneumatic manipulator is by capstan head, upper and lower air cylinders, rotary cylinder, finger cylinder, pneumatic-finger and forms, its
In, rotary cylinder is fixed on work top, and capstan head is connected with rotary cylinder by rotating shaft, and upper and lower air cylinders is packed on capstan head also
Chute can be provided with capstan head synchronous axial system in the side of upper and lower air cylinders, be had by slide block connection in chute and move up and down along chute
Finger cylinder, finger cylinder is connected with pneumatic-finger, and drives pneumatic-finger to clamp or unclamp action, and each cylinder passes through gas
Pipeline is connected with outside air compressor.
Described dispenser is conjugate cam type indexing separator.
Described PLC uses Rhizoma Sparganii FXIN-24MR weak signal testing.
The control method of automobile damper compression valve automatic tightening rotation riveting:
(1) turning on the power switch, appliance controling element obtains electric, and power supply indicator is bright；Open compressed-air actuated air-supplying valve, pneumatic
Element return to primitive age state, selects " automatically controlling ", presses " startup " button, and machine enters automatic control state；
(2) entering after automatic control state, first PLC detects dispenser and pneumatic machinery hand position signal is normal, and sends and open
Dynamic signal, to converter, drives frequency control motor, and frequency control motor drives the power shaft of dispenser to rotate, by dispenser band
Dynamic station turnplate rotates, and compression valve assembly good for pre-connection is placed on the frock of station to be tightened in station turnplate simultaneously
On, when the station inductive switch being arranged on dispenser power shaft side senses that dispenser is rotated in place signal, put in place
Signal is sent to PLC, PLC and sends stopping signal, inverter output terminal power-off to converter, and dispenser stops operating；
(3), after dispenser stops operating, PLC sends to servoboard hand controls and tightens instruction, servoboard hand controls control
Servo wrench starts to perform automatic tightening work, connects the electric control valve of wrench cylinder, compressed air is sent into wrench cylinder, by
Wrench cylinder drives and tightens sleeve and move downward, and when tightening the nut that sleeve entangles on compression valve assembly, spanner puts in place sensing
Switch is to one signal that puts in place of servoboard hand controls, and servo spanner starts to carry out tightening work according to the moment set, speed,
Reaching to set after moment and quit work, result is tightened in output, and sends and tighten end signal to PLC；
(4), after PLC receives and tightens end signal, send rotation riveting instruction to rotation riveting controller simultaneously, control at rotation riveting controller
Under, riveter starts to perform automatic rotary riveter and makees, and connects the electric control valve of rotation riveting cylinder, compressed air is sent into rotation riveting cylinder,
Driven the rotation die of riveter to move downward by rotation riveting cylinder, carry out compression valve assembly revolving riveting, set when the rotation riveting time arrives
Time, riveter is automatically stopped, and sends rotation riveting end signal to PLC；
(5) after PLC receives rotation riveting end signal, sending addressee instruction to Pneumatic manipulator, Pneumatic manipulator starts to hold simultaneously
Row automatic addressee work, connects each electric control valve in Pneumatic manipulator, compressed air is respectively fed in Pneumatic manipulator
Upper and lower air cylinders, finger cylinder and rotary cylinder, each cylinder starts working, upper and lower air cylinders drive finger cylinder to move downward,
And the three linked piece press-fited is clamped by the pneumatic-finger in finger cylinder, upper and lower air cylinders returns upper then, rotary pneumatic after a while
Cylinder drives upper and lower air cylinders to rotate 180, and pneumatic-finger unclamps, and the compression valve assembly workpiece that naturally drops is collected in box；
(6) pneumatic-finger puts the workpiece in after workpiece collects in box, and finger cylinder, upper and lower air cylinders, rotary cylinder return in situ, simultaneously
Send an end-of-job and return to signal in situ to PLC, represent that an Automatic Cycle process terminates；PLC sends signal, again
Connect frequency control motor, enter next Automatic Cycle process；
(7), when accidental power failure or situation about stopping the supple of gas or steam occur, after restoring electricity or supplying, automatic tightening rotated riveting device needs to reset,
Pressing the Reset button, PLC receives reset signal, and a control signal, to converter, controls frequency control motor operating, until work
Position inductive switch output puts signal in place to PLC, speed governing frequency conversion motor stall.
The automobile damper compression valve automatic tightening rotated riveting device made according to such scheme, it is possible to realize amortisseur compression
The automatization of riveting, recovery is tightened, revolved to valve, and during use, operator only need to put the compression valve assembly after pre-connection in order
Being placed in the frock of station turnplate, remaining work is just by PLC PLC controls frequency control motor, segmentation
Device, tightening machine, riveter, mechanical hand are respectively completed station rotary by pre-set program and put in place, tighten, revolve riveting, recovery
Automated production, its work efficiency by Liang Ren work team time artificial produce 1500 bring up to automatization time a people class produce 3000
Part, yield has turned over one times.And the rotation concordance of riveting tightened by compression valve assembly, reliability have also been obtained and fully ensures that, tightens rotation
The quality of riveting is also greatly promoted.This device can realize the continuous automatic tightening rotation riveting of compression valve assembly, and can improve and tighten rotation riveting
Speed and accuracy, have easy and simple to handle, quick, tighten rotation riveting precision height, reliable in action, concordance by force, low cost etc. excellent
Point.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the schematic top plan view of Fig. 1:
Fig. 3 is inductive switch position view:
Fig. 4 production procedure control block diagram.
Detailed description of the invention
Referring to Fig. 1, Fig. 2, the automobile damper compression valve automatic tightening rotated riveting device of the present invention, this device includes that machinery is twisted
Tight rotation riveting part and automatically control part, machinery is tightened rotation riveting part and is included: workbench 1, frequency control motor 2, dispenser 3,
Box 11 collected by station turnplate 5, servo wrench automatic screwing device structure 8, automatic riveter structure 9, Pneumatic manipulator 10 and workpiece, its
In, the table top of workbench 1 is fixed with station turnplate 5, station turnplate 5 is laid with several stations 6, station 6
On be embedded with the frock 7 for fixing compression valve, be provided with dispenser 3 in the bottom of workbench 1 table top, dispenser 3 is convex for conjugation
Wheeled indexing separator, the power shaft of dispenser 3 is connected with frequency control motor 2 by shaft coupling, and output shaft turns with station
The rotating shaft 5-1 of dish 5 is connected；Station turnplate 5 is fixed with on the table top of the workbench 1 of one of them station correspondence side and watches
Take spanner tightening mechanism 8, the table top of the workbench 1 of another station correspondence side is fixed with automatic riveter structure 9, with it
It is fixed with Pneumatic manipulator 10 on the table top of the workbench 1 of adjacent next station correspondence side and is positioned at Pneumatic manipulator 10
Box 11 collected by the workpiece at rear portion.
Described servo wrench automatic screwing device structure 8 includes spanner support 8-8, servo spanner 8-5, tightens sleeve 8-1, spanner
Extension bar 8-2, guide rod 8-7, active plate 8-6 and for control servo spanner 8-5 move up and down wrench cylinder 8-4, its
In, wrench cylinder 8-4 is packed in the outside of spanner support 8-8, and spanner support 8-8 is provided with guide rod 8-7 and installs with guide rod 8-7
The active plate 8-6 connected, one end of active plate 8-6 is stretched out and is connected also with the piston rod of wrench cylinder 8-4 outside support
Interlocking, servo spanner 8-5 installs and is fixed on active plate 8-6, can do with cylinder piston rod and be synchronized with the movement up and down, in servo
The bottom of spanner 8-5 is connected by spanner connecting rod 8-2 tightens sleeve 8-1, wrench cylinder 8-4 by gas pipeline and outside sky
Air compressor connects, in the side of spanner support 8-8, supporting equipped with servoboard hand controls 8-3, servo wrench 8-5 and servo
Connected by Special cable wire between wrench controller 8-3.
Described servo wrench is to use Ingersoll-rand QM3SS020H62S06 type, can the most directly purchase, its knot
Structure repeats no more.
Described automatic riveter structure is made up of riveter, rotation riveting support 9-4, rotation riveting cylinder 9-1, rotation die 9-2, its
In, rotation riveting support 9-4 is bolted on the table top of workbench 1, and rotation riveting support 9-4 is fixed with riveter (in figure not
Show) and rotation riveting cylinder 9-1, the piston rod of rotation riveting cylinder 9-4 is connected by connector with the rotation die 9-2 of riveter and interlocks,
Die 9-2 is corresponding with the position being press-fited workpiece on station turnplate 5 in rotation, and rotation riveting cylinder 9-1 is by gas pipeline and outside
Air compressor connects.Described riveter can the most directly be purchased, and its structure repeats no more.
Described Pneumatic manipulator is gentle by capstan head 10-4, upper and lower air cylinders 10-3, rotary cylinder 10-5, finger cylinder 10-1
Starting to refer to 10-2 composition, wherein, rotary cylinder 10-5 is fixed on workbench 1, and capstan head 10-4 passes through rotating shaft and rotary cylinder
10-5 connects, and upper and lower air cylinders 10-3 is packed on capstan head 10-4 and can be with capstan head 10-4 synchronous axial system, upper and lower air cylinders 10-3's
Side is provided with chute (not shown), and being connected by slide block in chute has finger cylinder 10-1 moved up and down along chute, finger
Cylinder 10-1 is connected with pneumatic-finger 10-2, and drives pneumatic-finger 10-2 to clamp or unclamp action, and each cylinder passes through trachea
Line is connected with outside air compressor.
The part that automatically controls realizing the rotation riveting of automobile damper compression valve automatic tightening includes:
One programmable logic controller (PLC), (hereinafter referred to as PLC) is master control unit, and this PLC uses Rhizoma Sparganii FXIN-24MR miniature
PLC, including CPU arithmetic processor and the memorizer that can program, is used for performing to store logical operations and sequential control, determine
Time, counting and calculation process Various types of data information, and send the instruction of operation, by numeral or the input port of simulation and defeated
Go out port, control station turnplate in production process and rotate location action, automatic tightening, rotation riveting action and automatic clamping and placing work
The action of part, PLC, with a RS232 port, for being connected with computer, and is write by computer, revises control program,
After programming completes, PLC can be with off-line working；
One converter, is connected with the output port of PLC by wire, changes output frequency for accepting the instruction of PLC, according to
The output frequency of converter controls operation revolution and the movement angle of dispenser of frequency control motor 2, and controls frequency conversion tune
The opening of speed motor 2, stop；
One station inductive switch 12, is connected with the input port of PLC by wire, and station inductive switch 12 is by a support
13 sides being arranged on dispenser power shaft 3-1, for the identification of dispenser 3 angle of operation position, when dispenser 3 drives station
When rotating disk 5 often rotates a station, station inductive switch 12 is issued by the operating signal that puts in place to PLC, and meanwhile, PLC sends out
Going out start and stop instruction, frequency control motor 2 turns stops；Described station inductive switch 12 can use electromagnetic induction switch or capacitive sensing
Switch.
One servoboard hand controls 8-3, the supporting side being arranged on servo wrench automatic screwing device structure, this controller leads to
Cross data wire to be connected with PLC and computer, the automatic tightening of compression valve of shock absorber can be realized under the instruction of PLC, and by meter
Calculation machine is set, inquire about change screw-down torque, upper and lower tolerance is arranged, tighten angle, tighten the adjustment of speed, and set
The inquiry of historical data and the function of defective warning output；
One spanner puts in place inductive switch 8-9, is connected with the input port of PLC by wire, and spanner puts in place inductive switch 8-9 peace
It is contained in the side of spanner support 8-8 in servo wrench tightening mechanism, for monitoring the identification that spanner puts in place；Described spanner puts in place
Inductive switch 8-9 can use electromagnetic induction switch or capacitance-sensitive switch；
One rotation riveting controller 9-3(is shown in Fig. 1), it is arranged on the side of automatic riveter structure 9, rotation riveting controller 9-3 passes through data
Line is connected with PLC and computer, can realize the automatic rotary riveting of compression valve of shock absorber, and entered by computer under the instruction of PLC
Row rotation riveting speed, rotation riveting time, the adjustment of rotation riveting power；
Five electric control valves, concentrate and are packed in (not shown) in the valve member fixed plate of side, workbench 1 bottom, and electric control valve leads to
Cross wire to be connected with the output port of PLC, be respectively used to control in automatic tightening mechanism 8, automatic riveter structure 9 and pneumatic motor
The motion of each cylinder in tool hands 10.
Programmable logic controller (PLC), converter, on and off switch, button and control circuit portion used in the present invention
Point electric elements be installed in electric cabinet 4, this electric cabinet 4 is arranged on the outside of workbench 1, control circuit in case and each
Connection between electric elements is common-sense known technology, is not repeating.The technology contents of the most detailed description of the present invention
It is known technology.
The control method of automobile damper compression valve automatic tightening rotation riveting is as follows:
(1) turning on the power switch, appliance controling element obtains electric, and power supply indicator is bright；Open compressed-air actuated air-supplying valve, pneumatic
Element return to primitive age state, selects " automatically controlling ", presses " startup " button, and machine enters automatic control state；
(2), after entering automatic control state, first PLC detects dispenser 3 and Pneumatic manipulator 10 position signalling is normal, and sends
Enabling signal, to converter, drives frequency control motor 2, and frequency control motor 2 drives the power shaft of dispenser 3 to rotate, by dividing
Cutter 3 drives station turnplate 5 to rotate, and compression valve assembly good for pre-connection is placed on work to be tightened in station turnplate 5 simultaneously
In the frock of position, when the station inductive switch 12 being arranged on dispenser power shaft 3-1 side senses that dispenser 3 is rotated in place letter
Number time, the signal that put in place is sent to PLC, PLC and sends stopping signal, inverter output terminal power-off to converter, and dispenser 3 stops
Spline is moved；
(3), after dispenser 3 stops operating, PLC sends to servoboard hand controls 8-3 and tightens instruction, at servoboard hand controls
Under the control of 8-3, servo wrench 8-5 starts to perform automatic tightening work, connects the electric control valve of wrench cylinder 8-4, will compression
Air sends into wrench cylinder 8-4, wrench cylinder 8-4 drive tighten sleeve 8-1 and move downward, entangle pressure when tightening sleeve 8-1
During nut on contracting valve module, the spanner inductive switch 8-9 that puts in place is to mono-signal that puts in place of servoboard hand controls 8-4, and servo is pulled
Hands 8-5 starts to carry out tightening work according to the moment set, speed, quits work after reaching to set moment, and result is tightened in output,
And send and tighten end signal to PLC；
(4), after PLC receives and tightens end signal, send rotation riveting instruction, at rotation riveting controller to rotation riveting controller 9-3 simultaneously
Under 9-3 controls, riveter starts to perform automatic rotary riveter and makees, and connects the electric control valve of rotation riveting cylinder 9-1, compressed air is sent into
Rotation riveting cylinder 9-1, is driven the rotation die 9-2 of riveter to move downward by rotation riveting cylinder 9-1, carries out compression valve assembly revolving riveting,
Arriving the setting time when the rotation riveting time, riveter is automatically stopped, and sends rotation riveting end signal to PLC；
(5), after PLC receives rotation riveting end signal, send addressee instruction to Pneumatic manipulator 10 simultaneously,
Pneumatic manipulator 10 starts to perform the work of automatic addressee, connects each electric control valve in Pneumatic manipulator 10, will compression
Upper and lower air cylinders 10-3, finger cylinder 10-1 and the rotary cylinder 10-5 that air is respectively fed in Pneumatic manipulator 10, each cylinder is opened
Beginning work, is driven finger cylinder 10-1 to move downward by upper and lower air cylinders 10-3, and by the pneumatic-finger in finger cylinder 10-1
10-2 clamps the three linked piece press-fited, and upper and lower air cylinders 10-3 returns upper then, and rotary cylinder 10-5 drives upper and lower air cylinders after a while
10-3 rotates 180, and pneumatic-finger 10-2 unclamps, and the compression valve assembly workpiece that naturally drops is collected in box 11；
(6) pneumatic-finger 10-2 puts the workpiece in after workpiece collects in box 11, finger cylinder 10-1, upper and lower air cylinders 10-3, rotation
Cylinder 10-5 returns in situ, is simultaneously emitted by an end-of-job and returns to signal in situ to PLC, represents that one Automatic Cycle process is tied
Bundle；PLC sends signal, is again switched on frequency control motor 2, enters next Automatic Cycle process；
(7), when accidental power failure or situation about stopping the supple of gas or steam occur, after restoring electricity or supplying, automatic tightening rotated riveting device needs to reset,
Pressing the Reset button, PLC receives reset signal, sends out control signal and operates to converter, control frequency control motor 2, until
Station inductive switch 12 output puts signal in place to PLC, speed governing frequency conversion motor 2 stall.
Operation principle: this device uses variable frequency reducer motor 2 to drive, and realizes speed governing by converter.Frequency control motor 2
Using shaft coupling to connect with the power shaft of dispenser, the output shaft of dispenser 3 is connected with the rotating shaft 5-1 of station turnplate 5, and
The side of dispenser power shaft 3-1 has installed station inductive switch 12 additional as station turnplate 5 rotary angle position identification, when point
Cutter 3 turns round after a station comes to a complete stop, and is contained in the station inductive switch 12 of dispenser power shaft 3-1 side and sends one and put in place
Signal sends the signal of telecommunication started working to PLC, PLC, and servoboard hand controls 8-3 starts to control to perform work automatically,
Driven servo spanner 8-5 to move downward by wrench cylinder 8-4, when tightening sleeve 8-1 and putting in place, spanner put in place inductive switch 8-
9 give mono-signal that puts in place of servoboard hand controls 8-3, and servo spanner 8-5 starts according to the moment set, speed on its station
Compression valve assembly carry out tightening work, reach to set after moment and quit work.And send one and tighten end signal to PLC,
PLC sends rotation riveting command signal, and after rotation riveting controller 9-3 receives command signal, automatic riveter structure 9 starts to perform automatic rotary riveting
Work, is driven rotation die 9-2 to move downward by rotation riveting cylinder 9-1 and carries out workpiece revolving riveting, arrive, when the rotation riveting time, the rotation set
The riveting time, automatic riveter structure 9 is automatically stopped, and send one rotation riveting end signal to PLC, PLC issue Pneumatic manipulator
10 1 addressee signals, the upper and lower air cylinders 10-3 in Pneumatic manipulator 10 is automatically downward, finger cylinder 10-1 drive pneumatic hands
Referring to 10-2 Automatic-clamping compression valve assembly, then turn 180, pneumatic-finger 10-2 unclamps and compression valve assembly is put into workpiece receives
Taking in box 11, return to initial condition, wait Next Command, the rotation riveting of tightening so far being automatically performed a compression valve assembly is reclaimed
Process.Compression valve assembly is put into while workpiece collects in box 11 by Pneumatic manipulator 10, can send an end-of-job signal
Send signal to PLC, PLC, be again switched on frequency control motor 2, enter next process.
The technology contents of the most detailed description of the present invention is known technology.
Claims (7)
1. an automobile damper compression valve automatic tightening rotated riveting device, it is characterised in that: this device includes that rotation riveting tightened by machinery
Part and automatically control part, machinery tighten rotation riveting part include: workbench, station turnplate, frequency control motor, segmentation
Device, servo wrench tightening mechanism, automatic riveter structure, Pneumatic manipulator and workpiece collect box, wherein, on the table top of workbench
It is fixed with station turnplate, station turnplate is laid with several stations, station is embedded with for tightening rotation riveting contracting
The frock of valve module, is provided with dispenser in the bottom of table surface, and the power shaft of dispenser passes through shaft coupling and frequency control
Motor is connected, and output shaft is connected with the rotating shaft of station turnplate, the work of one of them station correspondence side on station turnplate
Make to be fixed with on table top servo spanner automatic tightening mechanism, the work top of another station correspondence side is fixed with automatically
Rotating riveting mechanism, the work top of the next station correspondence side being adjacent is fixed with Pneumatic manipulator and is positioned at pneumatic motor
Box collected by the workpiece at tool hands rear portion；
Control part includes:
One programmable logic controller (PLC) (hereinafter referred to as PLC), is master control unit, including CPU arithmetic processor and can work out journey
The memorizer of sequence, be used for performing storing logical operations and sequential control, regularly, counting and calculation process Various types of data information,
And send the instruction of operation, by numeral or the input port of simulation and output port, control station turnplate in production process
Rotating location action, automatic tightening, rotation riveting action and the action of automatic clamping and placing workpiece, PLC, with a RS232 port, uses
In being connected with computer, and write by computer, revise control program；
One converter, is connected with the output port of PLC by wire, changes output frequency for accepting the instruction of PLC, according to
The output frequency of converter controls operation revolution and the movement angle of dispenser of frequency control motor, and controls frequency control
The opening of motor, stop；
One station inductive switch, is connected with the input port of PLC by wire, and station inductive switch is installed by a support
In the side of dispenser power shaft, for the identification of dispenser angle of operation position, when dispenser drives station turnplate every turn
During a dynamic station, station inductive switch is issued by the operating signal that puts in place to PLC, and meanwhile, PLC sends start and stop instruction, becomes
Frequency modulation speed motor turns and stops；
One spanner puts in place inductive switch, is connected with PLC by data wire, and the spanner inductive switch that puts in place is arranged on servo wrench and twists
The side of spanner support, the identification of the signal that puts in place for spanner in tight mechanism；
One servoboard hand controls, the supporting side being arranged on servo wrench automatic screwing device structure, this controller passes through data
Line is connected with PLC and computer, can realize the automatic tightening of compression valve of shock absorber, and entered by computer under the instruction of PLC
Row sets, inquiry change screw-down torque, upper and lower tolerance are arranged, tighten angle, tighten the adjustment of speed, and the history number set
It is investigated and ask and the function of defective output of reporting to the police；
One rotation riveting controller, is arranged on the side of riveter, and rotation riveting controller is connected with PLC and computer by data wire,
Can realize the automatic rotary riveting of compression valve of shock absorber under the instruction of PLC, and by computer carry out revolving riveting speed, the rotation riveting time,
The adjustment of rotation riveting power；
Five electric control valves, concentrate and are packed in (not shown) in the valve member fixed plate of side, workbench 1 bottom, and electric control valve leads to
Cross the connection of wire and the output port of PLC, be respectively used in control automatic tightening mechanism, automatic riveter structure 8 and pneumatic
The motion of each cylinder in mechanical hand.
Automobile damper compression valve automatic tightening rotated riveting device the most according to claim 1, it is characterised in that watch described in:
Take wrench automatic tightening mechanism to include spanner support, servo spanner, spanner connecting rod, tighten sleeve, guide rod, active plate, with
And for controlling the wrench cylinder that servo spanner moves up and down, wherein, wrench cylinder is packed in the outside of spanner support, and spanner props up
Frame is provided with guide rod and installs the active plate being connected with guide rod, and one end of active plate is stretched out outside support and wrench cylinder
Piston rod connect and interlock, servo spanner installs and is fixed on active plate, passes through spanner connecting rod in servo spanner bottom
Connecting and tighten sleeve, can do with piston rod and be synchronized with the movement up and down, wrench cylinder is by gas pipeline and outside air compressor
Connect.
Automobile damper compression valve automatic tightening rotated riveting device the most according to claim 1, it is characterised in that: described from
Dynamic rotating riveting mechanism is made up of riveter, rotation riveting support, rotation riveting cylinder, rotation die, and wherein, rotation riveting support is bolted on
On the table top of workbench, rotation riveting support on be fixed with riveter and rotation riveting cylinder, rotation riveting cylinder piston rod by connector with
The rotation die of riveter connects and interlocks, and rotation die is corresponding with the position being press-fited workpiece on station turnplate, revolves riveting cylinder
Connected with outside air compressor by gas pipeline.
Automobile damper compression valve automatic tightening rotated riveting device the most according to claim 1, it is characterised in that: described gas
Dynamic mechanical hand is by capstan head, upper and lower air cylinders, rotary cylinder, finger cylinder, pneumatic-finger and forms, and wherein, rotary cylinder is fixed
On work top, capstan head is connected with rotary cylinder by rotating shaft, and upper and lower air cylinders is packed on capstan head and can synchronize to turn with capstan head
Dynamic, it is provided with chute in the side of upper and lower air cylinders, being connected by slide block in chute has the finger cylinder moved up and down along chute, finger
Cylinder is connected with pneumatic-finger, and drives pneumatic-finger to clamp or unclamp action, and each cylinder is by gas pipeline and outside sky
Air compressor connects.
Automobile damper compression valve automatic tightening rotated riveting device the most according to claim 1, it is characterised in that: described point
Cutter is conjugate cam type indexing separator.
Automobile damper compression valve automatic tightening rotated riveting device the most according to claim 1, it is characterised in that: described PLC
Use Rhizoma Sparganii FXIN-24MR weak signal testing.
7., for a control method for the automobile damper compression valve automatic tightening rotated riveting device described in claim 1, it is special
Levy and be: this control method is as follows:
(1) turning on the power switch, appliance controling element obtains electric, and power supply indicator is bright；Open compressed-air actuated air-supplying valve, pneumatic
Element return to primitive age state, selects " automatically controlling ", presses " startup " button, and machine enters automatic control state；
(2) entering after automatic control state, first PLC detects dispenser and pneumatic machinery hand position signal is normal, and sends and open
Dynamic signal, to converter, drives frequency control motor, and frequency control motor drives the power shaft of dispenser to rotate, by dispenser band
Dynamic station turnplate rotates, and compression valve assembly good for pre-connection is placed on the frock of station to be tightened in station turnplate simultaneously
On, when the station inductive switch being arranged on dispenser power shaft side senses that dispenser is rotated in place signal, put in place
Signal is sent to PLC, PLC and sends stopping signal, inverter output terminal power-off to converter, and dispenser stops operating；
(3), after dispenser stops operating, PLC sends to servoboard hand controls and tightens instruction, servoboard hand controls control
Servo wrench starts to perform automatic tightening work, connects the electric control valve of wrench cylinder, compressed air is sent into wrench cylinder, by
Wrench cylinder drives and tightens sleeve and move downward, and when tightening the nut that sleeve entangles on compression valve assembly, spanner puts in place sensing
Switch is to one signal that puts in place of servoboard hand controls, and servo spanner starts to carry out tightening work according to the moment set, speed,
Reaching to set after moment and quit work, result is tightened in output, and sends and tighten end signal to PLC；
(4), after PLC receives and tightens end signal, send rotation riveting instruction to rotation riveting controller simultaneously, control at rotation riveting controller
Under, riveter starts to perform automatic rotary riveter and makees, and connects the electric control valve of rotation riveting cylinder, compressed air is sent into rotation riveting cylinder,
Driven the rotation die of riveter to move downward by rotation riveting cylinder, carry out compression valve assembly revolving riveting, set when the rotation riveting time arrives
Time, riveter is automatically stopped, and sends rotation riveting end signal to PLC；
(5) after PLC receives rotation riveting end signal, sending addressee instruction to Pneumatic manipulator, Pneumatic manipulator starts to hold simultaneously
Row automatic addressee work, connects each electric control valve in Pneumatic manipulator, compressed air is respectively fed in Pneumatic manipulator
Upper and lower air cylinders, finger cylinder and rotary cylinder, each cylinder starts working, upper and lower air cylinders drive finger cylinder to move downward,
And the three linked piece press-fited is clamped by the pneumatic-finger in finger cylinder, upper and lower air cylinders returns upper then, rotary pneumatic after a while
Cylinder drives upper and lower air cylinders to rotate 180, and pneumatic-finger unclamps, and the compression valve assembly workpiece that naturally drops is collected in box；
(6) pneumatic-finger puts the workpiece in after workpiece collects in box, and finger cylinder, upper and lower air cylinders, rotary cylinder return in situ, simultaneously
Send an end-of-job and return to signal in situ to PLC, represent that an Automatic Cycle process terminates；PLC sends signal, again
Connect frequency control motor, enter next Automatic Cycle process；
(7), when accidental power failure or situation about stopping the supple of gas or steam occur, after restoring electricity or supplying, automatic tightening rotated riveting device needs to reset,
Pressing the Reset button, PLC receives reset signal, and a control signal, to converter, controls frequency control motor operating, until work
Position inductive switch output puts signal in place to PLC, speed governing frequency conversion motor stall.
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| CN201610702337.6A CN106271568B (en) | 2016-08-23 | 2016-08-23 | Automobile damper compression valve automatic tightening rotated riveting device and its control method |
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| CN201610702337.6A CN106271568B (en) | 2016-08-23 | 2016-08-23 | Automobile damper compression valve automatic tightening rotated riveting device and its control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705853A (en) * | 2017-03-07 | 2017-05-24 | 江苏雷利电机股份有限公司 | Imaging device for sorting machine |
| CN107825108A (en) * | 2017-12-07 | 2018-03-23 | 南阳淅减汽车减振器有限公司 | A kind of vibration damper complement automatic assembling apparatus |
| CN108176796A (en) * | 2018-01-18 | 2018-06-19 | 厦门市克成五金制品有限公司 | A kind of safety valve opening and closing element assembles riveting equipment automatically |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010142919A (en) * | 2008-12-22 | 2010-07-01 | Mitsubishi Motors Corp | Device for assembling strut assembly |
| CN202174404U (en) * | 2011-07-13 | 2012-03-28 | 上海华普汽车有限公司 | Shock absorber assembly platform |
| CN202527915U (en) * | 2012-03-27 | 2012-11-14 | 信华精机有限公司 | Automatic pressing in machine for shock absorber |
| CN203918430U (en) * | 2014-06-03 | 2014-11-05 | 詹白勺 | Engine oil pump case steel ball and plug are pressed into controller |
| CN104148918A (en) * | 2014-08-08 | 2014-11-19 | 湖北机电院装备制造有限责任公司 | Shock absorber pressing machine |
| CN205147759U (en) * | 2015-11-11 | 2016-04-13 | 济南易恒技术有限公司 | Automobile wheel hub unit bolt pressure equipment rotating device |
| CN206029244U (en) * | 2016-08-23 | 2017-03-22 | 南阳淅减汽车减振器有限公司 | Device is riveted soon to automatic screwing up of vehicle shock absorber compression valve |
-
2016
- 2016-08-23 CN CN201610702337.6A patent/CN106271568B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010142919A (en) * | 2008-12-22 | 2010-07-01 | Mitsubishi Motors Corp | Device for assembling strut assembly |
| CN202174404U (en) * | 2011-07-13 | 2012-03-28 | 上海华普汽车有限公司 | Shock absorber assembly platform |
| CN202527915U (en) * | 2012-03-27 | 2012-11-14 | 信华精机有限公司 | Automatic pressing in machine for shock absorber |
| CN203918430U (en) * | 2014-06-03 | 2014-11-05 | 詹白勺 | Engine oil pump case steel ball and plug are pressed into controller |
| CN104148918A (en) * | 2014-08-08 | 2014-11-19 | 湖北机电院装备制造有限责任公司 | Shock absorber pressing machine |
| CN205147759U (en) * | 2015-11-11 | 2016-04-13 | 济南易恒技术有限公司 | Automobile wheel hub unit bolt pressure equipment rotating device |
| CN206029244U (en) * | 2016-08-23 | 2017-03-22 | 南阳淅减汽车减振器有限公司 | Device is riveted soon to automatic screwing up of vehicle shock absorber compression valve |
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| CN107825108A (en) * | 2017-12-07 | 2018-03-23 | 南阳淅减汽车减振器有限公司 | A kind of vibration damper complement automatic assembling apparatus |
| CN107825108B (en) * | 2017-12-07 | 2023-11-24 | 南阳淅减汽车减振器有限公司 | Automatic assembly device for shock absorber assembly |
| CN108176796B (en) * | 2018-01-18 | 2023-10-24 | 厦门市克成精密金属工业有限公司 | Automatic assembling and riveting equipment for safety valve opening and closing parts |
| CN108176796A (en) * | 2018-01-18 | 2018-06-19 | 厦门市克成五金制品有限公司 | A kind of safety valve opening and closing element assembles riveting equipment automatically |
| CN109607461A (en) * | 2018-04-09 | 2019-04-12 | 宁波雷奥自动化设备有限公司 | It is automatic to fill riveting one head mechanism |
| CN108637667A (en) * | 2018-04-23 | 2018-10-12 | 东莞利富高塑料制品有限公司 | A kind of assembly technology and production line of damper |
| CN108381159A (en) * | 2018-04-26 | 2018-08-10 | 上海工程技术大学 | A kind of screw automatic screwing device |
| CN109014883A (en) * | 2018-09-25 | 2018-12-18 | 南京金三力橡塑有限公司 | A kind of automatic production line of foot pad automatic assembling nut and packaging |
| CN109366142A (en) * | 2018-11-05 | 2019-02-22 | 江苏文光车辆附件有限公司 | A kind of automobile lamp screw automatic crimping device |
| CN109366142B (en) * | 2018-11-05 | 2024-04-02 | 江苏文光车辆附件有限公司 | Automatic crimping device for automobile lamp screw |
| CN110919379B (en) * | 2019-12-05 | 2022-08-05 | 昆山市杰尔电子科技股份有限公司 | Automatic machining device for intelligent notebook computer precision parts |
| CN110919379A (en) * | 2019-12-05 | 2020-03-27 | 昆山市杰尔电子科技股份有限公司 | Automatic machining device for intelligent notebook computer precision parts |
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