CN107962289A - A kind of automotive suspension control arm spot welding fixture (SWFX) - Google Patents
A kind of automotive suspension control arm spot welding fixture (SWFX) Download PDFInfo
- Publication number
- CN107962289A CN107962289A CN201711275897.9A CN201711275897A CN107962289A CN 107962289 A CN107962289 A CN 107962289A CN 201711275897 A CN201711275897 A CN 201711275897A CN 107962289 A CN107962289 A CN 107962289A
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- China
- Prior art keywords
- swelling
- clamp arm
- spot welding
- head cover
- positioning pin
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
- B23K11/115—Spot welding by means of two electrodes placed opposite one another on both sides of the welded parts
Abstract
The invention discloses a kind of automotive suspension control arm spot welding fixture (SWFX), including base, longitudinally adjusted plate on base is set and is arranged on longitudinally adjusted plate and laterally adjusts plate, vertical support cylinder is provided with plate in described laterally adjust, suspension board is provided with the piston rod of vertical support cylinder, the clamp arm one and clamp arm two of the head cover and bottom cover for clamping automotive suspension control arm are provided with suspension board, the automotive suspension control arm spot welding fixture (SWFX) further includes electric Proportion valve, electric Proportion valve is connected with vertical support cylinder, for adjusting the air inflow of vertical support cylinder；In each spot welding, after an indent solder joint on the head cover and bottom cover that are clamped together is moved to the position between top electrode and bottom electrode, the air inflow of vertical support cylinder is adjusted by electric Proportion valve, so that the state generally in a suspension that suspension board, clamp arm one, clamp arm two and automotive suspension control arm form, then carry out spot welding is moved down by top electrode.
Description
Technical field
The present invention relates to a kind of welding fixture, more particularly to a kind of automotive suspension control arm spot welding fixture (SWFX).
Background technology
Suspension system is the important assembly on Hyundai Motor, is had to ride of vehicle and control stability very big
Influence.Control arm as the guiding and force transfer element in automobile suspension system, its function be will act at it is various on wheel
Power passes to vehicle body, while ensures that wheel is moved by certain track.Control arm is respectively by flexural pivot or bushing wheel and car
Body is resiliently connected together, and in the utilization of actual condition, control arm should have enough rigidity, intensity and service life.
As shown in Figure 1, a kind of existing automotive suspension control arm includes head cover 1 and bottom cover 2, the two of head cover 1 and bottom cover 2
Stomidium 3 is both provided with end, the solder joint 4 of multiple indents is also both provided with the middle part of head cover 1 and bottom cover 2., it is necessary to will during welding
Head cover 1 and bottom cover 2 are clamped together, and recycle the top electrode 5 of mash welder to be in contact with an indent solder joint 4 on head cover, together
The bottom electrode 6 of Shi Liyong spot weldings is in contact with an indent solder joint 4 on bottom cover, and completion is once welded, and so on, respectively
Spot welding is carried out to multiple indent solder joints 4 on head cover and bottom cover, so that head cover 1 and bottom cover 2 be welded together.Every time during welding
Head cover on an indent solder joint 4 and bottom cover on an indent solder joint 4 be on same vertical line.
The specific action of welding is：An indent solder joint 4 on the head cover 1 and bottom cover 2 that are clamped together is moved to
Position between electrode 5 and bottom electrode 6, due to the bottom electrode 6 of mash welder be it is fixed, only top electrode 5 can on move down
It is dynamic, therefore, when by an indent solder joint 4 on the head cover being clamped together 1 and bottom cover 2 be moved to top electrode 5 and bottom electrode 6 it
Between position after, then control top electrode 5 to move down and be in contact with an indent solder joint 4 of head cover 1 and move down drive in top electrode 5
It is lower that head cover 1 and bottom cover 2 are pressed on bottom electrode 6, so that bottom electrode 6 is in contact with an indent solder joint 4 of bottom cover 2,
Complete a spot welding, when completing once to put postwelding, control and original position is moved back into top electrode 5, then by head cover 1 and bottom cover 2 move up with
Bottom electrode 6 separates, then by next indent solder joint 4 on head cover 1 and bottom cover 2 be moved to top electrode 5 and bottom electrode 6 it
Between position, spot weld operation next time is carried out, until completing whole welding operation.
Automotive suspension control arm is as the connector between wheel and vehicle body, in welding, it is necessary to ensure machining accuracy, this
Sample just can guarantee that ride of vehicle and control stability.When existing automotive suspension control arm is welded, due to mash welder
It is fixed, so when the indent solder joint to diverse location welds, it is necessary to by fixture and automotive suspension control arm
Position is moved together, but since the position of multiple indent solder joints is different, when being moved to the indent solder joint of diverse location, fixture
It will change with the overall center of gravity of automotive suspension control arm, so that when carrying out spot welding, top electrode moves down contact automobile
During the head cover of irs control arm, automotive suspension control arm meeting run-off the straight, will be direct as long as there is the phenomenon being slightly tilted
Influence the machining accuracy of automotive suspension control arm.
Authorization Notice No. is CN205363093U, and authorized announcement date is public for the Chinese utility model patent on July 6th, 2016
A kind of welding fixture of automobile control arm, including main frame, the locating clip of sheet body up and down clamping system and sky on main frame are opened
Heart cylinder positions clamping system；The sheet body locating clip clamping system up and down is used to position the sheet body up and down for clamping front lower control arm,
The hollow cylinder positioning clamping system is used to position the hollow cylinder for clamping front lower control arm；The sheet body locating clip up and down is tight
System includes upper and lower sheet body detent mechanism and upper and lower sheet body clamp system；The sheet body detent mechanism up and down includes the first positioning
Seat, the second positioning seat, support column；First positioning seat, the second positioning seat, support column are installed on main frame, and described first
Positioning seat, the second positioning seat and the technology hole on upper and lower sheet body coordinate, and the center of gravity of the sheet body up and down falls in the first positioning
In the plane that seat, the second positioning seat, support column are formed；The sheet body clamp system up and down includes the first cylinder, installed in the
First pressure head of one cylinder piston rod；Under the driving of the first cylinder, the first pressure head compressing is on upper and lower sheet body；The sky
Heart cylinder positioning clamping system includes hollow cylinder detent mechanism and hollow cylinder clamp system；The hollow cylinder detent mechanism
Including left detent mechanism and right detent mechanism, the left detent mechanism and right detent mechanism include first be fixed on main frame
Guide type shoe, the first shifting axle being plugged in the pilot hole of the first guide type shoe, first installed in the first movement shaft end
Positioning pin, for driving the first shifting axle to make the second cylinder of stretching motion in the pilot hole of the first guide type shoe；The left side
Detent mechanism is located in hollow cylinder by the left side of left hollow cylinder, and the first positioning pin in left detent mechanism can be inserted into from left side
To position left hollow cylinder in left hollow cylinder, the right detent mechanism is located in hollow cylinder by the right side of right hollow cylinder,
The first positioning pin in right detent mechanism can be inserted into right hollow cylinder from right side to position right hollow cylinder；The hollow cylinder
Clamp system includes guiding trestle, left connecting rod axis and right connecting rod axis, left connecting rod and right connecting rod, the second left pressure head and the second right pressure
Head, the 3rd cylinder；The guiding trestle is fixed on main frame, and guiding trestle is included positioned at the left leading truck in left side and positioned at right side
Right leading truck, the left connecting rod axis activity is plugged in the pilot hole of left leading truck, and the right connecting rod axis activity is plugged in the right side
In the pilot hole of leading truck, the second left pressure head is installed on the left end of left connecting rod axis, and the second right pressure head is installed on right company
The right end of bar axis, one end of the left connecting rod are hinged on the right end of left connecting rod axis, and the other end of left connecting rod is hinged on the 3rd cylinder
Piston rod on, one end of the right connecting rod is hinged on the left end of right connecting rod axis, and the other end of right connecting rod is hinged on the 3rd cylinder
Piston rod on；Under the driving of the 3rd cylinder, the second left pressure head can be inserted into left hollow cylinder from right side, and described second
Right pressure head can be inserted into right hollow cylinder from left side.
Authorization Notice No. is CN206047428U, and authorized announcement date is the Chinese utility model patent on March 29th, 2017
Disclose a kind of front suspension control arm assembly welding clamp, including pedestal and the position-limit mechanism for being arranged on pedestal, the position restrainer
Structure include upper and lower jacking mechanism, two-way jacking mechanism, hold-down mechanism and with the corresponding locating piece of front suspension control arm assembly；Institute
State pedestal and be equipped with and be used to installing the mounting hole of lower jacking mechanism, the jacking mechanism up and down include upper cylinder, lower cylinder, on
Cylinder mounting base；Upper cylinder is fixedly mounted with upper cylinder mounting base, and lower cylinder is fixedly mounted with pedestal, the axis that upper cylinder stretches
The axis to stretch with lower cylinder through mounting hole and both be located at same straight line.
Fail to disclose how to solve to cause machining accuracy because of centre-of gravity shift in welding process in above patent document
The technical solution of reduction problem.
To sum up, a kind of automotive suspension control arm spot welding fixture (SWFX) how is designed, fixture and automotive suspension can be avoided to control
The overall center of gravity of arm change carry out spot welding when, the generation of automotive suspension control arm tilt problem, improve automotive suspension control
The machining accuracy of arm is the technical problem for being badly in need of solving.
The content of the invention
The technical problems to be solved by the invention are to be directed to defect existing in the prior art, there is provided a kind of automotive suspension control
Arm spot welding fixture (SWFX) processed, it is avoided that the overall center of gravity of fixture and automotive suspension control arm changes when carrying out spot welding, and automobile hangs
The generation of frame control arm tilt problem, improves the machining accuracy of automotive suspension control arm.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of automotive suspension control arm point weld clip
Tool, including base, longitudinally adjusted plate on base is set and is arranged on longitudinally adjusted plate and laterally adjusts plate, in the transverse direction
Vertical support cylinder is provided with adjustment plate, suspension board is provided with the piston rod of vertical support cylinder, is set on suspension board
It is equipped with the clamp arm one and clamp arm two of the head cover and bottom cover for clamping automotive suspension control arm, the automotive suspension control arm spot welding
Fixture further includes electric Proportion valve, and electric Proportion valve is connected with vertical support cylinder, for adjusting the air inlet of vertical support cylinder
Amount；In each spot welding, an indent solder joint on the head cover and bottom cover that are clamped together is moved to top electrode and bottom electrode
Between position after, the air inflow of vertical support cylinder is adjusted by electric Proportion valve so that the branch that vertical support cylinder produces
Support force is equal to suspension board, clamp arm one, the overall gravity of clamp arm two and automotive suspension control arm so that suspension board, clamp arm one,
The state generally in a suspension of clamp arm two and automotive suspension control arm composition, then carry out spot welding is moved down by top electrode.
Preferably, the equal clamp arm stent of clamp arm one and clamp arm two and the upper press mechanism being arranged on clamp arm stent, it is described
Clamp arm one and clamp arm two further include lower supporting and positioning mechanism, and head cover and bottom cover are pressed on lower supporting and positioning mechanism by upper press mechanism
The stomidium of upper and lower supporting and positioning mechanism through head cover and bottom cover positions head cover and bottom cover.
Preferably, the lower supporting and positioning mechanism include be arranged on clamp arm stent stop sleeve, be arranged on supporting sleeve
Swelling positioning pin and the vertical cylinder being arranged on clamp arm stent inside cylinder, swelling is provided with the piston rod of vertical cylinder
Control-rod；One end of the swelling positioning pin exposes to the top ends of stop sleeve, and the end of head cover and bottom cover is placed on support
In the top ends of sleeve and swelling positioning pin one end through the stomidium of head cover and bottom cover, the outer circumferential surface and stomidium of swelling positioning pin
Inner peripheral surface between leave gap, swelling positioning pin is hollow form, and one end of swelling control-rod is inserted into the interior of swelling positioning pin
In portion's cavity, swelling control-rod is driven to move up by vertical cylinder, control swelling positioning pin, which is in distending state, will push up lid and bottom
The stomidium of lid is fixed or drives swelling control-rod to move down by vertical cylinder, and control swelling positioning pin recovers ortho states and unclamps to head cover
With the fixation of bottom cover stomidium.
Preferably, the swelling positioning pin includes multiple shanks circumferentially arranged, on the side face of swelling positioning pin also
The elastic banding part together by multiple shank bandings is provided with, the internal cavities of swelling positioning pin are arranged to taper, swelling control
One end of bar processed is also configured as taper；It is the taper by swelling control-rod when vertical cylinder drives swelling control-rod to move up
End is engaged with the cone-shaped internal part cavity of swelling positioning pin so that swelling positioning pin is in distending state, when vertical gas
It is to control swelling positioning pin to recover ortho states by the elastic-restoring force of elastic banding part when cylinder drive swelling control-rod moves down.
Preferably, the shank is provided with six pieces.
Preferably, the elastic banding part is clamp spring.
Preferably, sidepiece inserting block mechanism is additionally provided with clamp arm stent, sidepiece inserting block mechanism can be from top lid and bottom
The sidepiece of lid is inserted between head cover and bottom cover, ensures the distance between head cover and bottom cover.
Preferably, the sidepiece interposer includes the horizontal air cylinder being arranged on clamp arm stent and is arranged on horizontal air cylinder
Spacer block on piston rod, the spacer block are U-shaped；Under the drive of horizontal air cylinder, spacer block can be inserted into from the sidepiece of head cover and bottom cover
To between head cover and bottom cover.
Preferably, spot welding positioning plate is additionally provided with plate is laterally adjusted, is provided with spot welding positioning plate and multiple indents
The corresponding multiple location holes of solder joint；Correlation optoelectronic switch is additionally provided with mash welder, by correlation optoelectronic switch with
Multiple location holes on spot welding positioning plate are engaged, so as to be positioned to the welding position of spot welding.
Preferably, electrode grinding device is additionally provided with plate is laterally adjusted.
The beneficial effects of the present invention are：The present invention is changed after head cover and bottom cover are moved into place by electric Proportion valve
Become the support force of vertical support cylinder so that suspension board, clamp arm one, clamp arm two and automotive suspension control arm composition generally in
No matter the state of one suspension, so weld when top electrode moves down and automotive suspension control in the indent solder joint to which position
During arm contact processed, automotive suspension control arm can guarantee that the horizontality of automotive suspension control arm all without the phenomenon of run-off the straight,
When carrying out spot welding so as to change the invention can avoid the overall center of gravity of fixture and automotive suspension control arm, automotive suspension control
The generation of arm tilt problem, improves the machining accuracy of automotive suspension control arm.The present invention is not provided only with press mechanism, also sets
The lower supporting and positioning mechanism positioned to head cover and bottom cover is equipped with, therefore, the present invention can guarantee that adding for automotive suspension control arm
Work precision and its simple operation, improve processing efficiency.Action is engaged with swelling control-rod by swelling positioning pin, just energy side
Just the positioning before efficiently being welded to head cover and bottom cover, so as to improve processing efficiency.Utilize the taper of swelling control-rod
End is engaged with the cone-shaped internal part cavity of swelling positioning pin so that swelling positioning pin is in distending state, utilizes elastic banding part
So that swelling positioning pin returns to round platform, so more easily head cover and bottom cover can be accurately positioned.By setting side
Inserting block mechanism of portion, in welding by ensureing that the distance between head cover and bottom cover does not change, adds with regard to that can further improve
Work precision.It is engaged by spot welding positioning plate with penetrating formula optoelectronic switch, high-precision positioning can be carried out to the specific location of spot welding
Detection, so as to substantially increase machining accuracy.
Brief description of the drawings
Fig. 1 is a kind of dimensional structure diagram of automotive suspension control arm；
Fig. 2 is the dimensional structure diagram of the embodiment of the present invention；
Fig. 3 is the main structure diagram of the embodiment of the present invention；
Fig. 4 is to remove the dimensional structure diagram of clamp arm one and clamp arm two after upper press mechanism；
Fig. 5 is the sectional perspective structure diagram at stop sleeve in Fig. 4；
Fig. 6 is main structure diagram when swelling positioning pin and swelling control-rod are engaged in the embodiment of the present invention；
Fig. 7 is the dimensional structure diagram of swelling positioning pin and swelling control-rod in the embodiment of the present invention；
Fig. 8 is the main structure diagram of swelling positioning pin in the embodiment of the present invention；
Fig. 9 is the main structure diagram of swelling control-rod in the embodiment of the present invention；
Figure 10 is dimensional structure diagram when correlation optoelectronic switch is engaged with spot welding positioning plate in the embodiment of the present invention；
In figure：1. head cover, 2. bottom covers, 3. stomidiums, 4. solder joints, 5. top electrodes, 6. bottom electrodes, 7. bases, 8. screws
Nut body one, 9. longitudinally adjusted plates, 10. laterally adjust plate, 11. vertical support cylinders, 12. suspension boards, 13. clamp arm
One, 14. clamp arm two, 15. guide rod guide sleeve mechanisms, 16. clamp arm stents, press mechanism on 17., 18. times supporting and positioning mechanisms,
181. stop sleevees, 182. swelling positioning pins, 1821. shanks, 1822. elastic banding parts, 183. vertical cylinders, 184.
Swelling control-rod, 19. tapers one, 20. tapers two, 21. sidepiece inserting block mechanisms, 211. horizontal air cylinders, 212. spacer blocks,
22. spot welding positioning plate, 221. location holes, 23. mash welders, 24. correlation optoelectronic switches, 25. electrode grinding devices.
Embodiment
Further details of elaboration is done to technical scheme with specific embodiment below in conjunction with the accompanying drawings.
Embodiment：As shown in Figures 2 and 3, a kind of automotive suspension control arm spot welding fixture (SWFX), including base 7, pass through screw spiral shell
Parent agency 1 set base 7 on longitudinally adjusted plate 9 and pass through leading screw and nut mechanism two（Not shown in figure）It is arranged on longitudinal tune
Plate 10 is laterally adjusted in whole plate 9, vertical support cylinder 11 is provided with plate 10 in described laterally adjust, in vertical support cylinder
Suspension board 12 is provided with 11 piston rod, the head cover for clamping automotive suspension control arm and bottom are provided with suspension board 12
The clamp arm 1 and clamp arm 2 14 of lid, the automotive suspension control arm spot welding fixture (SWFX) further include electric Proportion valve（Do not show in figure
Go out）, electric Proportion valve is connected with the air inlet pipe of vertical support cylinder, for adjusting the air inflow of vertical support cylinder.This implementation
Example first passes through before spot welding is carried out and adjusts longitudinally adjusted plate 9 and laterally adjust the position of plate 10 so as to the top that will be clamped together
An indent solder joint 4 on lid 1 and bottom cover 2 is moved to the position between top electrode 5 and bottom electrode 6, in each spot welding, will press from both sides
After tightly an indent solder joint 4 on head cover 1 and bottom cover 2 together is moved to the position between top electrode 5 and bottom electrode 6, lead to
Cross the air inflow that electric Proportion valve reduces vertical support cylinder 11 so that the support force that vertical support cylinder 11 produces, which is equal to, to suspend
Plate 12, clamp arm 1, the overall gravity of clamp arm 2 14 and automotive suspension control arm, so that suspension board, clamp arm one, clamp arm two
With automotive suspension control arm composition generally in one suspension state, then by top electrode 5 move down with one of head cover 1 in
Recessed solder joint 4 is in contact and moving down under drive in top electrode 5 so that suspension board 12, clamp arm 1, clamp arm 2 14 and automotive suspension
Control arm integrally moves down, and head cover 1 and bottom cover 2 are pressed on bottom electrode 6, so that an indent of bottom electrode 6 and bottom cover 2
Solder joint 4 is in contact, and completes a spot welding, when completing once to put postwelding, controls and is moved back into original position in top electrode 5, then by electric
Proportioning valve increases the air inflow of vertical support cylinder, so as to increase the support force that vertical support cylinder produces so that suspension board 12,
Clamp arm 1, clamp arm 2 14 and automotive suspension control arm integrally move up, and head cover 1 and bottom cover 2 are separated with bottom electrode 6, then
By adjusting longitudinally adjusted plate 9 and the position for laterally adjusting plate 10, next indent solder joint 4 on head cover 1 and bottom cover 2 is moved
Position to top electrode 5 and bottom electrode 6, carries out spot weld operation next time, until completing whole welding operation.
In the present embodiment after head cover and bottom cover are moved into place, change the branch of vertical support cylinder by electric Proportion valve
Support force so that the state generally in a suspension that suspension board, clamp arm one, clamp arm two and automotive suspension control arm form, this
No matter sample is welded when top electrode is moved down and contacted with automotive suspension control arm in the indent solder joint to which position, and automobile hangs
Frame control arm can guarantee that the horizontality of automotive suspension control arm, so that the present embodiment can be kept away all without the phenomenon of run-off the straight
The overall center of gravity for exempting from fixture and automotive suspension control arm changes when carrying out spot welding, the hair of automotive suspension control arm tilt problem
It is raw, improve the machining accuracy of automotive suspension control arm.In the present embodiment, leading screw and nut mechanism one and feed screw nut's machine are passed through
Structure two longitudinally adjusted plate and laterally adjusts the position of plate in the plane to adjust, so as to adjust clamp arm one, clamp arm two and spot welding
The position of positioning plate in the plane.In suspension board and laterally adjust and be additionally provided with multiple guide rod guide sleeve mechanisms 15 between plate, so
Easy to movement of the suspension board on vertical.
The equal clamp arm stent 16 of clamp arm 1 and clamp arm 2 14 and the upper press mechanism 17 being arranged on clamp arm stent 16, institute
State clamp arm one and clamp arm two further includes lower supporting and positioning mechanism 18, head cover 1 and bottom cover 2 are pressed on lower support by upper press mechanism 17
On detent mechanism 18 and lower supporting and positioning mechanism 18 passes through the stomidium 3 of head cover and bottom cover to position head cover 1 and bottom cover 2.
Before welding, first head cover 1 and bottom cover 2 are placed in lower supporting and positioning mechanism 18, then top is passed through by lower supporting and positioning mechanism 18
The stomidium 3 of lid 1 and bottom cover 2 positions head cover 1 and bottom cover 2, then controls upper press mechanism 17 to compress head cover 1 and bottom cover 2
In lower supporting and positioning mechanism 18, then welded.Press mechanism is not provided only with the present embodiment, is additionally provided with to head cover
The lower supporting and positioning mechanism positioned with bottom cover, therefore, the present embodiment can be further ensured that the processing of automotive suspension control arm
Precision and its simple operation, improve processing efficiency.In the present embodiment, upper press mechanism includes upper air cylinder, is arranged on pressure
Supporting rack on cylinder block and the hold being hinged on supporting rack；The piston rod of upper air cylinder and one end of hold connect
Connect, lower lock block is provided with the other end of hold.By the action of upper air cylinder, lower lock block can be driven to move up and down.
As shown in Figures 4 to 6, the lower supporting and positioning mechanism 18 includes the stop sleeve being arranged on clamp arm stent 16
181st, the swelling positioning pin 182 being arranged on inside stop sleeve 181 and the vertical cylinder 183 being arranged on clamp arm stent 16,
Swelling control-rod 184 is provided with the piston rod of vertical cylinder 183；One end of the swelling positioning pin 182 exposes to supporting sleeve
The top ends of cylinder 181, the end of head cover 1 and bottom cover 2 is placed in the top ends of stop sleeve 181 and swelling positioning pin 182
One end passes through the stomidium 3 of head cover and bottom cover, and gap is left between the outer circumferential surface of swelling positioning pin 182 and the inner peripheral surface of stomidium 3, swollen
Tight positioning pin 182 is hollow form, and one end of swelling control-rod 184 is inserted into the internal cavities of swelling positioning pin 182, by hanging down
Swelling control-rod 184 is driven to move up to cylinder 183, control swelling positioning pin 182 is in distending state by the end of head cover and bottom cover
Hole 3 is fixed or drives swelling control-rod 184 to move down by vertical cylinder 183, and control swelling positioning pin 182 recovers ortho states（Connect
Touch swelling state）Unclamp the fixation to head cover and bottom cover stomidium 3.Action is engaged with swelling control-rod by swelling positioning pin,
Positioning before just conveniently being welded to head cover and bottom cover, so as to improve processing efficiency.
As shown in Figure 7 to 9, the swelling positioning pin 182 includes multiple shanks 1821 circumferentially arranged, determines in swelling
The elastic banding part 1822 by multiple 1821 bandings of shank together, swelling positioning pin 182 are additionally provided with the side face of position pin 182
Internal cavities be arranged to taper 1, one end of swelling control-rod 184 is also configured as taper 2 20, the stub end of taper 2 20
Close to the direction of vertical cylinder 183, the small head end of taper 2 20 is in the direction away from vertical cylinder 183；When vertical cylinder 183
It is by the tapered end of swelling control-rod 184 and the taper of swelling positioning pin 182 when drive swelling control-rod 184 moves up
Portion's cavity is engaged so that swelling positioning pin 182 is in distending state, when vertical cylinder 183 drives swelling control-rod
184 when moving down, and is to control swelling positioning pin 182 to recover ortho states by the elastic-restoring force of elastic banding part 1822.
Before welding, swelling control-rod 184 is driven to move up by vertical cylinder 183, control swelling positioning pin 182 is in distending
State fixes the stomidium 3 of head cover 1 and bottom cover 2, so as to be positioned to head cover 1 and bottom cover 2；
After the completion of welding, swelling control-rod 184 is driven to move down by vertical cylinder 183, control swelling positioning pin 182 recovers former
State, unclamps the fixation to 2 stomidium of head cover 1 and bottom cover.
The present embodiment be engaged using the tapered end of swelling control-rod with the cone-shaped internal part cavity of swelling positioning pin so that
Swelling positioning pin is in distending state, causes swelling positioning pin to return to round platform using elastic banding part, so can be more convenient
Head cover and bottom cover are accurately positioned.In the present embodiment, the elastic banding part 1822 is arranged to clamp spring.
The shank 1821 is provided with six pieces, by experimental results demonstrate, when swelling positioning pin is cut into six pieces, energy
Play optimal effect.
As shown in Figure 4 and Figure 5, sidepiece inserting block mechanism 21, sidepiece inserting block mechanism are additionally provided with clamp arm stent 16
21 can be inserted between head cover 1 and bottom cover 2 from the sidepiece of head cover 1 and bottom cover 2, ensure the distance between head cover 1 and bottom cover 2.This
Sample, in welding by ensureing that the distance between head cover and bottom cover does not change, with regard to machining accuracy can be further improved.
The sidepiece interposer 21 includes the horizontal air cylinder 211 being arranged on clamp arm stent 16 and is arranged on horizontal air cylinder
Spacer block 212 on 211 piston rods, the spacer block 212 are U-shaped；Under the drive of horizontal air cylinder 211, spacer block 212 can be from head cover 1
And the sidepiece of bottom cover 2 is inserted between head cover and bottom cover so that the stomidium of head cover 1 and bottom cover 2 is located at the U type slot of spacer block 212
In.
As shown in Fig. 2, Fig. 3 and Figure 10, spot welding positioning plate 22 is additionally provided with plate 10 is laterally adjusted, in spot welding positioning plate 22
On be provided with and the corresponding multiple location holes 221 of multiple indent solder joints 4；Correlation photoelectricity is additionally provided with mash welder 23 to open
24 are closed, is engaged by correlation optoelectronic switch 24 with multiple location holes 221 on spot welding positioning plate, so that the welding to spot welding
Position is positioned.The position of multiple location holes on spot welding positioning plate is the space of multiple indent solder joints on head cover and bottom cover
Mapping position, the formula optoelectronic switch of penetrating are the space reflection position of the upper/lower electrode of mash welder.
When welding, one on spot welding positioning plate is driven to position by laterally adjusting plate 10 and longitudinally adjusted plate 9
Hole 221 is moved to the position between the transmitter and receiver of correlation optoelectronic switch 24 so that is sent by transmitter
Light enter receiver by one location hole 221 so that correlation optoelectronic switch sends signal, after signal is sent
Control mash welder 23 to be welded again, complete the welding of an indent solder joint on head cover 1 and bottom cover 2；Then again by transverse direction
Next location hole 221 in adjustment plate 10 and the drive spot welding positioning plate of longitudinally adjusted plate 9, which is moved to be located at, penetrates formula optoelectronic switch
At 24 so that the formula optoelectronic switch of penetrating sends signal, completes the welding to next indent solder joint, so repeatedly, until completing whole
The spot welding work of a automotive suspension control arm.
By above-mentioned setting, high-precision detection and localization can be carried out to the specific location of spot welding, added so as to substantially increase
Work precision.
As shown in figure 3, electrode grinding device 25 is additionally provided with plate 10 is laterally adjusted.When the electrode of mash welder uses one section
After time, by adjusting longitudinally adjusted plate and the position for laterally adjusting plate, electrode grinding device 25 is driven to move, so as to mash welder
Upper and lower electrode carry out reconditioning, improve the service life of equipment.
To sum up, the present invention changes vertical support cylinder after head cover and bottom cover are moved into place by electric Proportion valve
Support force so that the state generally in a suspension that suspension board, clamp arm one, clamp arm two and automotive suspension control arm form,
Which so no matter welded in the indent solder joint to position when top electrode is moved down and contacted with automotive suspension control arm, automobile
Irs control arm can guarantee that the horizontality of automotive suspension control arm, so that the present invention can be kept away all without the phenomenon of run-off the straight
The overall center of gravity for exempting from fixture and automotive suspension control arm changes when carrying out spot welding, the hair of automotive suspension control arm tilt problem
It is raw, improve the machining accuracy of automotive suspension control arm.The present invention is not provided only with press mechanism, is additionally provided with to pushing up lid and bottom
The lower supporting and positioning mechanism positioned is covered, therefore, the present invention can guarantee that the machining accuracy of automotive suspension control arm and its operation
It is convenient, improve processing efficiency.Action is engaged with swelling control-rod by swelling positioning pin, just can be conveniently to head cover
Positioning before being welded with bottom cover, so as to improve processing efficiency.Positioned using the tapered end and swelling of swelling control-rod
The cone-shaped internal part cavity of pin is engaged so that swelling positioning pin is in distending state, causes swelling positioning pin using elastic banding part
Round platform is returned to, so more easily head cover and bottom cover can be accurately positioned.By setting sidepiece inserting block mechanism,
By ensureing that the distance between head cover and bottom cover do not change during welding, with regard to machining accuracy can be further improved.Pass through spot welding
Positioning plate is engaged with penetrating formula optoelectronic switch, high-precision detection and localization can be carried out to the specific location of spot welding, so as to carry significantly
High machining accuracy.
" multiple " described in the present embodiment refer to the quantity of " two or more ".Above example is only for illustrating this
Invention is used, rather than limitation of the present invention, and person skilled in the relevant technique is not departing from the spirit and scope of the present invention
In the case of, it can also make a variety of changes or convert, therefore all equivalent technical solutions should also belong to the guarantor of the present invention
Scope is protected, protection scope of the present invention should be limited by each claim.
Claims (8)
1. a kind of automotive suspension control arm spot welding fixture (SWFX), including base, longitudinally adjusted plate on base is set and is arranged on longitudinal direction
Plate is laterally adjusted in adjustment plate, it is characterised in that：Vertical support cylinder is provided with plate in described laterally adjust, in vertical branch
Support and be provided with suspension board on the piston rod of cylinder, the head cover for clamping automotive suspension control arm and bottom are provided with suspension board
The clamp arm one and clamp arm two of lid, the automotive suspension control arm spot welding fixture (SWFX) further include electric Proportion valve, and electric Proportion valve is with hanging down
To support cylinder connection, for adjusting the air inflow of vertical support cylinder；In each spot welding, by the head cover being clamped together and
After an indent solder joint on bottom cover is moved to the position between top electrode and bottom electrode, vertical branch is adjusted by electric Proportion valve
Support the air inflow of cylinder so that the support force that vertical support cylinder produces is equal to suspension board, clamp arm one, clamp arm two and automotive suspension
The overall gravity of control arm so that suspension board, clamp arm one, clamp arm two and automotive suspension control arm composition generally in one
The state of a suspension, then carry out spot welding is moved down by top electrode.
2. automotive suspension control arm spot welding fixture (SWFX) according to claim 1, it is characterised in that：The clamp arm one and clamp arm two
Equal clamp arm stent and the upper press mechanism being arranged on clamp arm stent, the clamp arm one and clamp arm two further include lower support localization machine
Structure, head cover and bottom cover are pressed in lower supporting and positioning mechanism upper press mechanism and lower supporting and positioning mechanism is through head cover and bottom cover
Stomidium positions head cover and bottom cover.
3. automotive suspension control arm spot welding fixture (SWFX) according to claim 2, it is characterised in that：The lower supporting and positioning mechanism
Including the stop sleeve being arranged on clamp arm stent, the swelling positioning pin being arranged on inside stop sleeve and it is arranged on clamp arm stent
On vertical cylinder, swelling control-rod is provided with the piston rod of vertical cylinder；One end of the swelling positioning pin exposes to
The end of the top ends of stop sleeve, head cover and bottom cover is placed in the top ends of stop sleeve and one end of swelling positioning pin is worn
The stomidium of head cover and bottom cover is crossed, gap is left between the outer circumferential surface of swelling positioning pin and the inner peripheral surface of stomidium, swelling positioning pin is
Hollow form, one end of swelling control-rod are inserted into the internal cavities of swelling positioning pin, drive swelling to control by vertical cylinder
Bar moves up, and control swelling positioning pin is in distending state and fixes the stomidium of head cover and bottom cover or drive swelling by vertical cylinder
Control-rod moves down, and control swelling positioning pin recovers fixation of the ortho states release to head cover and bottom cover stomidium.
4. automotive suspension control arm spot welding fixture (SWFX) according to claim 3, it is characterised in that：The swelling positioning pin includes
Multiple shanks circumferentially arranged, are additionally provided with the elastic cuffs together by multiple shank bandings on the side face of swelling positioning pin
Tight part, the internal cavities of swelling positioning pin are arranged to taper, and one end of swelling control-rod is also configured as taper；When vertical cylinder band
It is to be engaged by the tapered end of swelling control-rod with the cone-shaped internal part cavity of swelling positioning pin when dynamic swelling control-rod moves up
So that swelling positioning pin is in distending state, it is to pass through elastic cuffs when vertical cylinder drives swelling control-rod to move down
The elastic-restoring force control swelling positioning pin of tight part recovers ortho states.
5. automotive suspension control arm spot welding fixture (SWFX) according to claim 4, it is characterised in that：The shank is provided with six
Block.
6. automotive suspension control arm spot welding fixture (SWFX) according to claim 4, it is characterised in that：The elasticity banding part is card
Spring.
7. automotive suspension control arm spot welding fixture (SWFX) according to claim 2, it is characterised in that：Also set up on clamp arm stent
There is sidepiece inserting block mechanism, sidepiece inserting block mechanism can be inserted between head cover and bottom cover from the sidepiece of head cover and bottom cover, ensured
The distance between head cover and bottom cover.
8. automotive suspension control arm spot welding fixture (SWFX) according to claim 7, it is characterised in that：The sidepiece interposer bag
The horizontal air cylinder being arranged on clamp arm stent and the spacer block being arranged on horizontal air cylinder piston rod are included, the spacer block is U-shaped；In water
Under the drive of flat cylinder, spacer block can be inserted between head cover and bottom cover from the sidepiece of head cover and bottom cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711275897.9A CN107962289B (en) | 2017-12-06 | 2017-12-06 | Spot welding fixture for control arm of automobile suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711275897.9A CN107962289B (en) | 2017-12-06 | 2017-12-06 | Spot welding fixture for control arm of automobile suspension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107962289A true CN107962289A (en) | 2018-04-27 |
| CN107962289B CN107962289B (en) | 2020-04-28 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711275897.9A Active CN107962289B (en) | 2017-12-06 | 2017-12-06 | Spot welding fixture for control arm of automobile suspension |
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| Country | Link |
|---|---|
| CN (1) | CN107962289B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872686A (en) * | 2021-01-22 | 2021-06-01 | 郭兵 | Macpherson suspension tower and main part welded positioning fixture |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107962289B (en) | 2020-04-28 |
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