CN213672787U - Automatic spot welding production line for clamping piece nuts - Google Patents
Automatic spot welding production line for clamping piece nuts Download PDFInfo
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- CN213672787U CN213672787U CN202022719252.3U CN202022719252U CN213672787U CN 213672787 U CN213672787 U CN 213672787U CN 202022719252 U CN202022719252 U CN 202022719252U CN 213672787 U CN213672787 U CN 213672787U
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Abstract
The utility model discloses an automatic spot welding production line of a clamping piece nut, which comprises a feeding mechanism, a vibrating disc for screening workpieces and a conveying track for conveying the workpieces; the spot welding mechanism comprises a spot welding assembly and a spot welding working platform used for moving a workpiece, and the workpiece is conveyed to the spot welding working platform by the conveying track; the bending mechanism comprises a stamping device for stamping and bending the workpiece and a bending platform for bearing the workpiece; the material clamping mechanical arm is used for transferring the workpiece from the spot welding working platform to the bending platform; and the blanking mechanism is used for pushing the workpiece out of the stamping device for blanking. The beneficial effects of the utility model are that through setting up full-automatic feed mechanism, spot welding mechanism, the mechanism of bending, material clamping manipulator and unloading mechanism, realized the full-automatic welding of nut and clamping piece, greatly promoted welding efficiency.
Description
Technical Field
The utility model relates to a suspension type spot welding subassembly field especially relates to an automatic spot welding production line of clamping piece nut.
Background
As shown in fig. 9, the clip nut 6 is a part used inside a license plate and used for mounting the license plate, and includes a clip 61 and a nut 62, two protruding spigots 63 are arranged on the clip, and four sets of spot welding feet 64 are arranged at the bottom end of the nut. In the machining process, a machining worker firstly aligns the threaded hole of the nut with the through hole which is punched in advance on the clamping piece, fixes the nut on the clamping piece by using the spot welding leg in a spot welding mode, and then punches and bends the clamping piece into a U-shaped clamping piece shape.
The existing manufacturing method generally adopts the steps of firstly welding the nut and the clamping piece manually and then bending the nut manually or bending the workpiece by adopting an automatic bending machine. The manufacturing method has low product yield due to insufficient welding and bending precision, and the bending process of the whole workpiece processing consumes too long time, thereby greatly influencing the working efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automatic spot welding production line of clamping piece nut in order to solve above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
an automated spot welding production line for clip nuts, comprising:
the feeding mechanism comprises a vibration disc for screening the workpieces and a conveying track for conveying the workpieces;
the spot welding mechanism comprises a spot welding assembly and a spot welding working platform used for moving a workpiece, and the workpiece is conveyed to the spot welding working platform by the conveying track;
the bending mechanism comprises a stamping device for stamping and bending the workpiece and a bending platform for bearing the workpiece;
the material clamping mechanical arm is used for transferring the workpiece from the spot welding working platform to the bending platform;
and the blanking mechanism is used for pushing the workpiece out of the stamping device for blanking.
Further, the vibration dish is including the nut vibration dish of screening nut and the clamping piece vibration dish of screening clamping piece, defeated material track is defeated including the nut that transports the nut defeated material track and the clamping piece that transports the clamping piece defeated material track.
Further, the spot welding assembly includes:
the lower electrode is used for bearing the workpiece and electrifying the workpiece;
the electrode head is driven by the welding cylinder and is used for welding the nut and the clamping piece together;
the cover plate is driven by the double-shaft cylinder and used for limiting the welded assembly.
Further, the spot welding work platform includes:
the feeding assembly comprises a nut feeding channel connected with the nut feeding rail and a clamping piece feeding channel connected with the clamping piece feeding rail;
the clamping piece pushing assembly comprises a clamping piece guide groove and a clamping piece pushing block driven by a clamping piece pushing cylinder, wherein one end of the clamping piece guide groove is provided with the clamping piece pushing cylinder, the other end of the clamping piece guide groove is communicated with the upper part of the lower electrode, one end of the clamping piece feeding channel, which is far away from the clamping piece feeding track, is communicated with the clamping piece guide groove, and the clamping piece pushing cylinder drives the clamping piece pushing block to push the clamping piece fed into the clamping piece guide groove by the feeding assembly onto the lower electrode;
the nut pushing assembly comprises a nut guide groove and a nut pushing block pushed by a nut pushing cylinder, wherein the nut pushing cylinder is arranged at one end of the nut guide groove, the other end of the nut guide groove is communicated with the upper part of the lower electrode, one end of the nut feeding channel, which is far away from the nut feeding track, is communicated with the nut guide groove, and the nut pushing cylinder drives the nut pushing block to push the nut fed into the nut guide groove by the feeding assembly to the lower electrode for spot welding with the clamping piece;
the material pushing assembly comprises a first material pushing groove and a first pushing block which is driven by a first material pushing cylinder and moves along the first material pushing groove, and the piston end of the first material pushing cylinder faces the upper part of the lower electrode.
Further, the one end of lower electrode is kept away from first material cylinder that pushes away is equipped with the workstation for place the postweld subassembly, be equipped with the unloading breach on the workstation, the apron is located the workstation top.
Further, the bending mechanism includes:
the bending machine frame is erected in the blanking direction of the workbench;
the bending machine comprises a bending machine frame, a bending table, a first material pushing groove, a bending groove, a second material pushing groove, a manipulator placing groove and a bending groove, wherein the bending table is arranged on the bending machine frame, the second material pushing groove and the bending groove are formed in the bending table, a material pushing rail is arranged on one side of the bending table, a material loading groove and the manipulator placing groove are formed in the material pushing rail, one end of the second material pushing groove is communicated with the bending groove, the other end of the second material pushing groove is communicated with one end of the material loading groove and is coaxially arranged, and;
the material pushing device is arranged at the feeding end of the bending table;
the stamping device is arranged above the bending table and comprises a stamping frame arranged on the bending machine frame, a stamping cylinder arranged on the stamping frame, a stamping seat arranged at the output end of the stamping cylinder and a stamping head arranged at the bottom end of the stamping seat.
Furthermore, the material pushing device comprises a second material pushing cylinder arranged on the bending machine frame, a push rod arranged at the output end of the second material pushing cylinder and a second push block connected with the push rod.
Furthermore, the punching head comprises a fixed end and a punching and bending end arranged at the bottom end of the fixed end, a punching head clearance groove is formed in the middle of the punching and bending end, the top surface of the punching head clearance groove is of an inclined surface structure, the bottom surface of the punching head clearance groove is of a plane structure, and a smooth transition surface is arranged at the bottom end of the punching and bending end.
Further, press from both sides the material manipulator and locate the workstation with between the manipulator standing groove, include:
the mechanical clamping jaw is used for clamping the welded assembly;
the clamping jaw air cylinder is used for driving the mechanical clamping jaw to open and close;
the mechanical clamping jaw, the clamping jaw cylinder and the telescopic cylinder are sequentially arranged on the same straight line;
and the rotating cylinder is used for driving the telescopic cylinder to rotate.
Furthermore, the blanking mechanism comprises a guide rail, a pushing piece and a third pushing cylinder for driving the pushing piece to move, a pushing groove is formed in the pushing piece, and a material guide plate is arranged below one side, far away from the pushing cylinder, of the pushing piece.
The beneficial effects of the utility model reside in that:
1. by arranging the full-automatic feeding mechanism, the spot welding mechanism, the bending mechanism, the material clamping manipulator and the discharging mechanism, the full-automatic welding of the nut and the clamping piece is realized, and the welding efficiency is greatly improved;
2. the clamping pieces and the nuts are conveyed one by one in a correct direction after being screened by the special structural design of the clamping piece vibration disc and the nut vibration disc, so that the loading operation is completed for the subsequent procedures, the requirements of subsequent processing and assembly are met, the screening precision is high, the efficiency is high, and the practicability is high;
3. when in welding, certain pressure is applied to the nut and the clamping piece, so that the welding leg of the nut can be uniformly contacted with the clamping piece, the resistance of the welding leg of the nut is uniformly distributed, the temperature of the welding point of the nut and the clamping piece is the same during welding, the melting degree is the same, the nut is finally more uniformly welded on the clamping piece, the spot welding strength and the spot welding quality of the clamping piece and the nut are improved, and the rejection rate of a welded assembly product is reduced;
4. the welded assembly in the previous process is turned over by the clamping manipulator and is moved to the workbench of the next process, so that the failure rate of turning over the welded assembly is reduced, the production line can smoothly run, the production efficiency is improved, and the labor cost is also reduced;
5. for a common air cylinder, the piston end of the air cylinder is connected with the piston end of the air cylinder through a piston rod, but under the condition of higher precision requirement, because the common piston rod is easy to generate phenomena of deflection, falling, material pushing track deviation and the like in the material pushing process, in order to increase the material pushing precision of the second material pushing air cylinder, a strip-shaped sliding block is used as a push rod, a supporting seat which is in sliding connection with the push rod is arranged below the push rod, the supporting seat is arranged on a bending machine frame, the supporting seat supports the push rod to improve the rigidity of the push rod, and the situation that the push rod is easy to generate deflection, falling and material pushing track deviation in the material pushing process to cause that the material pushing;
6. the top surface of the punch head clearance groove is of an inclined surface structure, so that the strength is increased, deformation and fracture of the bending block under stress are prevented, the bottom surface of the punch head clearance groove is of a plane structure and corresponds to the seam allowance on the clamping piece, the U-shaped clamping piece nut is prevented from sliding off, and when the bending end is bent and returns to the original position, the formed clamping piece nut can be taken out through the butt seam allowance, so that the subsequent blanking operation is facilitated;
7. the material pushing piece provided with the material pushing groove corresponding to the shape of the punching head is ingeniously arranged, so that the clamping piece nut can be quickly and automatically blanked after the punching head lifts the clamping piece nut from the bending groove.
Drawings
Fig. 1 is a schematic perspective view of an automated spot welding production line for clip nuts according to the present invention;
fig. 2 is a schematic view of a feeding mechanism of an automatic spot welding production line for clip nuts according to the present invention;
fig. 3 is a schematic view of a spot welding mechanism of an automatic spot welding production line for clip nuts according to the present invention;
fig. 4 is a schematic view of another view angle of the spot welding mechanism of the automatic spot welding production line of the clip nut according to the present invention;
fig. 5 is a schematic view of a material clamping manipulator of an automatic spot welding production line for clip nuts according to the present invention;
fig. 6 is a schematic view of a bending mechanism of an automatic spot welding production line for clip nuts according to the present invention;
fig. 7 is a schematic view of a blanking mechanism of an automatic spot welding production line for clip nuts according to the present invention;
fig. 8 is a schematic view of a stamping head of an automated spot welding production line for clip nuts according to the present invention;
fig. 9 is a schematic view of a clip nut according to the present invention.
Reference numerals:
1-feeding mechanism, 11-vibrating disk, 111-nut vibrating disk, 112-clamping piece vibrating disk, 113-clamping piece screening track, 114-clamping piece baffle, 12-material conveying track, 121-nut material conveying track, 122-clamping piece material conveying track, 123-nut screening track, 124-nut baffle and 13-feeding rack;
2-spot welding mechanism, 21-spot welding assembly, 211-electrode head, 212-lower electrode, 213-biaxial cylinder, 214-cover plate, 215-welding cylinder, 22-spot welding working platform, 221-feeding assembly, 2211-nut feeding channel, 2212-clip feeding channel, 222-clip pushing assembly, 2221-clip pushing block, 2222-clip guiding groove, 2223-clip pushing cylinder, 2224-clip pushing rod, 223-nut pushing assembly, 2231-nut pushing block, 2232-nut guiding groove, 2233-nut pushing cylinder, 2234-nut pushing rod, 224-pushing assembly, 2241-first pushing block, 2242-first pushing groove, 2243-first pushing cylinder, 2244-pushing rod, 225-workbench, 2251-blanking gap, 2252-a restraining post;
3-material clamping manipulator, 31-mechanical clamping jaw, 32-clamping jaw cylinder, 33-telescopic cylinder and 34-rotary cylinder;
4-bending mechanism, 41-bending machine frame, 42-pushing device, 421-second pushing cylinder, 422-pushing rod, 423-second pushing block, 424-supporting seat, 43-punching device, 431-punching frame, 432-punching cylinder, 433-punching seat, 434-punching head, 4341-fixed end, 4342-punching end, 4343-punching head clearance groove, 4344-smooth transition surface, 44-pushing track, 441-feeding groove, 442-manipulator placing groove, 45-bending table, 451-bending groove, 452-second pushing groove;
5-a blanking mechanism, 51-a pushing piece, 52-a third pushing cylinder, 53-a guide rail, 54-a guide plate and 55-a pushing groove;
6-clip nut, 61-clip, 62-nut, 63-spigot and 64-spot welding foot.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 to 7, an automated spot welding production line for clip nuts includes:
feed mechanism 1, including material loading frame 13, the vibration dish 11 that is used for screening the work piece and the defeated material track 12 of carrying the work piece, vibration dish 11 is including the nut vibration dish 111 of screening the nut and the clip vibration dish 112 of screening the clamping piece, defeated material track 12 is including defeated material track 122 of clamping piece and the defeated material track 121 of nut.
The inside of the clip vibrating tray 112 is provided with a clip screening track 113, the end of the clip screening track 113 is provided with a clip conveying track 122, the clip screening track 113 is spiral and rises in a coiling manner, and different clip baffles 114 are arranged on the clip screening track 113 to adjust the placing positions of the clips, so that the clips can be neatly arranged and conveyed into the clip conveying track 122.
A nut screening track 123 is arranged in the nut vibrating tray 111, a nut conveying track 121 is arranged at the tail end of the nut screening track 123, the nut screening track 123 is spiral and rises in a winding mode, and different nut baffles 124 are arranged on the nut screening track 123 to adjust the placement position of nuts, so that the nuts can be orderly arranged and conveyed into the nut conveying track 121;
under the vibration action of the clip vibration disc 112 and the nut vibration disc 111, clips and nuts respectively spirally rise along the clip screening track 113 and the nut screening track 123, and through the arrangement of the clip baffle 114 and the nut baffle 124, clips and nuts which do not conform to the feeding and placing state are pushed down the clip screening track 113 and the nut screening track 123, and rise along the bottoms of the clip screening track 113 and the nut screening track 123 again, the clips and the nuts which conform to the feeding and placing state enter the clip conveying track 122 and the nut conveying track 121 to prepare for entering the next process.
Set up clamping piece vibration dish 112 and nut vibration dish 111 through the front end of spot welding work platform 22, by the special structural design of clamping piece vibration dish 112 and nut vibration dish 111, the orientation to clamping piece and nut is filtered the back, then the sequencing is carried, finally obtain the orientation correct, arrange neatly, and the clamping piece and the nut of carrying one by one, for the material loading operation is accomplished to subsequent handling, satisfy follow-up processing equipment requirement, the screening precision is high, and is efficient, and the practicality is high.
The spot welding mechanism 2 comprises a spot welding assembly 21 and a spot welding working platform 22 for moving a workpiece, and the workpiece is conveyed to the spot welding working platform 22 by the conveying track 12;
the spot welding assembly 21 includes:
the lower electrode 212 is used for bearing and electrifying the workpiece, and the nut guide groove 2232 and the clip guide groove 2222 are respectively positioned at two opposite sides of the lower electrode 212 and are higher than the lower electrode 212 in height;
an electrode head 211 driven by a welding cylinder 215 for welding the nut and the clip together;
and the cover plate 214 is driven by the double-shaft air cylinder 213 and used for limiting the welded assembly.
The spot welding work platform 22 includes:
the feeding assembly 221, the feeding assembly 221 includes a nut feeding channel 2211 and a clip feeding channel 2212, one end of the nut feeding channel 2211 is connected with the end of the nut feeding track 121, the other end is communicated with the nut guide slot 2232 of the nut pushing assembly 223, one end of the clip feeding channel 2212 is connected with the end of the clip feeding track 122, and the other end is communicated with the clip guide slot 2222 of the clip pushing assembly 222;
the clip pushing assembly 222 comprises a clip guide groove 2222 and a clip pushing block 2221 driven by a clip pushing cylinder 2223, wherein one end of the clip guide groove 2222 is provided with a clip pushing cylinder 2223, the other end of the clip pushing cylinder 2223 is communicated with the upper part of the lower electrode 212, the piston end of the clip pushing cylinder 2223 is connected with the clip pushing block 2221 through a clip pushing rod 2224, the clip pushing cylinder 2223 drives the clip pushing block 2221 to push the clip fed into the clip guide groove 2222 by the feeding assembly 221 onto the lower electrode 212, a clip guide opening is formed in the clip guide groove 2222, and one end of the clip feeding channel 2212, which is far away from the clip feeding track 122, is connected with the clip guide opening;
the nut pushing assembly 223 comprises a nut guide groove 2232 and a nut push block 2231 pushed by a nut pushing cylinder 2233, one end of the nut guide groove 2232 is provided with a nut pushing cylinder 2233, the other end of the nut pushing cylinder 2233 leads to the upper part of the lower electrode 212, the piston end of the nut pushing cylinder 2233 is connected with the nut push block 2231 through a nut push rod 2234, the nut pushing cylinder 2233 drives the nut push block 2231 to push the nut, which is fed into the nut guide groove 2232 by the feeding assembly 221, to the upper clamping piece of the lower electrode 212 for spot welding, a nut guide opening is arranged on the nut guide groove 2232, and one end of the nut feeding channel 2211, which is far away from the nut feeding track 121, is connected with the nut guide opening;
push away material assembly 224, including first material groove 2242 and push away the first ejector pad 2241 that material groove 2242 moved along first material that pushes away of material cylinder 2243 driven through first material cylinder 2243, first material cylinder 2243's piston end is towards the top of bottom electrode 212, keeping away from of bottom electrode 212 first material cylinder 2243's one end is equipped with workstation 225 for place the postweld subassembly, be equipped with unloading breach 2251 on the workstation 225, the both ends of unloading breach 2251 are equipped with spacing post 2252, apron 214 is located workstation 225 top.
Firstly, the piston is retracted by the clip pushing cylinder 2223, the clip pushing block 2221 is retracted by the clip pushing cylinder 2223, and the clip enters the clip guiding groove 2222 from the clip guiding opening along the clip feeding channel 2212; meanwhile, the nut pushing cylinder 2233 retracts the piston, the nut push block 2231 is driven by the nut pushing cylinder 2233 to retract, and the nut enters the nut guide groove 2232 from the nut guide opening along the nut feeding channel 2211.
Then the clip pushing cylinder 2223 pushes out the piston, and drives the clip pushing block 2221 to push the clip to slide towards the lower electrode 212 in the clip guiding groove 2222 until the clip falls on the lower electrode 212 completely, and the clip guiding groove 2222 and the nut guiding groove 2232 limit the position of the clip at the same time; then the nut pushing cylinder 2233 pushes out the piston, the nut pushing block 2231 is driven to push the nut in the nut guide groove 2232 to slide towards the lower electrode 212 until the nut completely falls on the clamping piece, the nut pushing block 2231 and the clamping piece pushing block 2221 simultaneously limit the position of the nut, and the relative position of the clamping piece and the nut is accurately limited, so that the threaded hole of the nut can be accurately aligned to the through hole of the clamping piece, and the rejection rate of the welded assembly product is reduced; the welding cylinder 215 drives the electrode tip 211 to move downwards, the arc surface of the end part of the electrode tip 211 abuts against a threaded hole in the center of the nut, pressure is applied to the nut and a clamping piece below the nut, and the positions of the nut and the clamping piece are fixed; the clamping piece pushing cylinder 2223 and the nut pushing cylinder 2233 retract the piston, and the clamping piece pushing block 2221 and the nut pushing block 2231 leave the nut; the electrode tip 211 guides high-voltage current to pass through the nut and the clamping piece below the nut, the contact position of a spot welding foot at the bottom of the nut and the clamping piece is heated and melted, after the high-voltage current is cut off by the electrode tip 211, the contact position of the spot welding foot of the nut and the clamping piece is cooled to form a welding spot, the nut and the clamping piece are welded together to form a welded assembly, certain pressure is applied to the nut and the clamping piece during welding, the welding foot of the nut can be uniformly contacted with the clamping piece, the resistance of the welding foot of the nut is uniformly distributed, the temperature of the welding point of the nut and the welding point of the clamping piece during welding is the same, the melting degree is the same, the nut is finally welded on the clamping piece more uniformly, the spot welding strength and the spot welding; the double-shaft air cylinder 213 drives the cover plate 214 to move downwards, and a limiting channel which can accommodate the welded assembly to pass through but can limit the welded assembly is formed by a groove arranged below the cover plate 214 and the workbench 225 arranged below the cover plate 214;
the welding cylinder 215 drives the electrode tip 211 upward, releasing the lower post weld assembly, so that the post weld assembly is restored to a freely movable state. Then the piston end of the material pushing cylinder extends out to drive the first push block 2241 to slide in the direction close to the lower electrode 212 in the first material pushing groove 2242, the welded component is pushed to leave the lower electrode 212 to a blanking notch 2251 on the workbench 225 after contacting the welded component on the lower electrode 212, the two ends of the welded component are limited by the limiting columns 2252, so that the middle part of the welded component can be stopped on the blanking notch 2251, and the material clamping manipulator 3 can take the welded component away from the blanking notch 2251 and send the welded component to the next process for material moving; the two-axis cylinder 213 drives the cover plate 214 upward for the next cycle of the welding process.
A material clamping manipulator 3 for transferring a workpiece from the spot welding work platform 22 to the bending table 45, wherein the material clamping manipulator 3 is arranged between the work table 225 and the manipulator placing groove 442, and comprises:
a mechanical clamping jaw 31 for clamping the post-weld assembly;
a clamping jaw cylinder 32 for driving the mechanical clamping jaw 31 to open and close;
the clamping jaw cylinder 32 is arranged at the piston end of the telescopic cylinder 33, and the mechanical clamping jaw 31, the clamping jaw cylinder 32 and the telescopic cylinder 33 are sequentially arranged on the same straight line;
and the rotating cylinder 34 is used for driving the telescopic cylinder 33 to rotate in a vertical plane.
Under the driving of the telescopic cylinder 33, the piston end of the telescopic cylinder 33 extends out, and the integral structures of the mechanical clamping jaw 31 and the clamping jaw cylinder 32 are driven to move towards the direction of the workbench 225 until the mechanical clamping jaw 31 moves to a blanking gap 2251 of the workbench 225 respectively, and two jaws of the mechanical clamping jaw 31 are positioned at the upper side and the lower side of the welded assembly respectively; then the clamping jaw cylinder 32 drives the mechanical clamping jaw 31 to be closed, the mechanical clamping jaw 31 clamps the welded assembly, the rotating cylinder 34 drives the whole structure of the mechanical clamping jaw 31, the clamping jaw cylinder 32 and the telescopic cylinder 33 to rotate clockwise by 180 degrees in a vertical plane, the mechanical clamping jaw 31 clamping the welded assembly faces the bending table 45 at the moment, then the telescopic cylinder 33 acts, the piston end of the telescopic cylinder 33 extends out, the mechanical clamping jaw 31 is placed on the manipulator placing groove 442, the clamping jaw cylinder 32 drives the mechanical clamping jaw 31 to be opened, the welded assembly is loosened, and the welded assembly is horizontally placed on the bending table 45; then the piston end of the telescopic cylinder 33 is retracted, and the integral structure of the mechanical clamping jaw 31 and the clamping jaw cylinder 32 is driven to move towards the direction far away from the bending table 45; finally, the rotating cylinder 34 drives the whole structure of the mechanical clamping jaw 31, the clamping jaw cylinder 32 and the telescopic cylinder 33 to rotate 180 degrees in the anticlockwise direction in a vertical plane, so that the whole structure of the mechanical clamping jaw 31, the clamping jaw cylinder 32 and the telescopic cylinder 33 faces the direction of the workbench 225, the material moving process is completed, and the next circulation of the material moving process is started.
Utilize material clamping manipulator 3 to overturn the postweld subassembly in the last process and move to the workstation 225 of next process on, reduced the failure rate of upset postweld subassembly for the production line can be smooth operation, has improved production efficiency, has also reduced the human cost.
the bending machine frame 41 is arranged in the blanking direction of the workbench 225;
the bending machine comprises a bending table 45, the bending table 45 is arranged on a bending machine frame 41, a second material pushing groove 452 and a bending groove 451 are formed in the bending table 45, a material pushing rail 44 is arranged on one side of the bending table 45, a material loading groove 441 and a manipulator placing groove 442 are arranged on the material pushing rail 44, one end of the second material pushing groove 452 is communicated with the bending groove 451, the other end of the second material pushing groove 452 is communicated with one end of the material loading groove 441 and is coaxially arranged, and the manipulator placing groove 442 is communicated with the material loading groove 441;
the pushing device 42 is arranged at the feeding end of the bending table 45 and comprises a second pushing cylinder 421 arranged on the bending frame 41, a push rod 422 arranged at the output end of the second pushing cylinder 421 and a second pushing block 423 connected with the push rod 422, and the second pushing cylinder 421 pushes the second pushing block 423 to slide along the pushing track 44 through the push rod 422;
for a common air cylinder, the piston end of the air cylinder is connected through a piston rod, but under the condition of higher precision requirement, because the common piston rod is easy to generate phenomena of deflection, falling, deviation of pushing track and the like in the pushing process, in order to increase the pushing precision of the second pushing air cylinder 421, a strip-shaped sliding block is used as a push rod 422, a supporting seat 424 connected with the push rod 422 in a sliding manner is arranged below the push rod 422, the supporting seat 424 is arranged on a bending machine frame 41, the supporting seat 424 supports the push rod 422 to improve the rigidity of the push rod 422, and the situation that the pushing precision is insufficient due to deflection, falling and deviation of the pushing track of the push rod 422 in the pushing process is prevented.
The stamping device 43 is arranged above the bending table 45, and comprises a stamping frame 431 arranged on the bending machine frame 41, a stamping cylinder 432 arranged on the stamping frame 431, a stamping seat 433 arranged at the output end of the stamping cylinder 432 and a stamping head 434 arranged at the bottom end of the stamping seat 433;
as shown in fig. 8, the punching head 434 includes a fixed end 4341 and a bending end 4342 disposed at the bottom end of the fixed end 4341, a punch head clearance groove 4343 has been disposed in the middle of the bending end 4342, the top surface of the punch head clearance groove 4343 is an inclined surface structure, which is beneficial to increasing strength and preventing deformation and fracture of the bending block when being stressed, the bottom surface of the punch head clearance groove 4343 is a plane structure, which corresponds to the notch on the clip, and prevents the clip nut of the U-shape from sliding off, so that the bending end 4342 can be bent and returned to the original position through the butt joint notch, thereby taking out the formed clip nut to facilitate subsequent blanking operations, and the bottom end of the bending end 4342 is provided with a smooth transition surface 4344 for stamping and forming the welded assembly.
After the welded assembly is placed into the feeding groove 441 by the mechanical clamping jaw 31, the second pushing cylinder 421 of the pushing device 42 acts to drive the push rod 422 to slide along the support seat 424 to push the second push block 423 out, the welded assembly is pushed into the second pushing groove 452 from the feeding groove 441 by the second push block 423 and finally is transferred into the bending groove 451, at this time, the punching cylinder 432 of the punching device 43 acts to press downwards to drive the punching head 434 to move downwards to punch and bend the welded assembly and form a final formed clip nut, the clip nut is butted with the spigot through the punch clearance groove 4343 on the punching head 434 to be lifted from the bending groove 451, and at this time, the clip nut is hung on the punching head 434.
The blanking mechanism 5 is used for pushing workpieces out of the stamping device 43 for blanking, the blanking mechanism 5 comprises a guide rail 53, a pushing piece 51 and a third pushing cylinder 52 for driving the pushing piece 51 to move, a pushing groove 55 is formed in the pushing piece 51, the width of the pushing groove 55 is larger than the thickness of a bending end 4342 of the stamping head 434 and smaller than the thickness of a fixed end 4341 of the stamping head 434, the pushing piece 51 moves along the guide rail 53, and a guide plate 54 is arranged below one side of the pushing cylinder, away from the pushing piece 51.
After the clip nut is lifted up from the bending groove 451 by the punching head 434, the piston end of the third material pushing cylinder 52 extends out to drive the material pushing piece 51 to move towards the punching head 434, the material pushing groove 55 on the material pushing piece 51 moves from the periphery of the bending end 4342 of the punching head 434, the clip nut hung on the punching head 434 is pushed out and falls on the material guide plate 54 through a parabola, and the blanking is completed.
Due to the fact that the pushing piece 51 of the pushing groove 55 corresponding to the shape of the stamping head 434 is ingeniously arranged, after the clamping piece nut is lifted from the bending groove 451 by the stamping head 434, rapid automatic blanking can be achieved.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.
Claims (9)
1. The utility model provides an automatic spot welding production line of clamping piece nut which characterized in that includes:
the feeding mechanism (1) comprises a vibrating disc (11) for screening workpieces and a material conveying track (12) for conveying the workpieces, the vibrating disc (11) comprises a nut vibrating disc (111) for screening nuts and a clamping piece vibrating disc (112) for screening clamping pieces, and the material conveying track (12) comprises a nut material conveying track (121) for conveying nuts and a clamping piece material conveying track (122) for conveying the clamping pieces;
the spot welding mechanism (2) comprises a spot welding assembly (21) and a spot welding working platform (22) used for moving a workpiece, wherein the spot welding assembly (21) comprises a lower electrode (212), the spot welding working platform (22) comprises a nut guide groove (2232) and a clamping piece guide groove (2222), the nut guide groove (2232) and the clamping piece guide groove (2222) are respectively positioned on two opposite sides of the lower electrode (212) and are higher than the lower electrode (212), the conveying track (12) conveys the workpiece into the nut guide groove (2232) and the clamping piece guide groove (2222), and the spot welding working platform (22) conveys the workpiece into the position above the lower electrode (212);
the bending mechanism (4) comprises a stamping device (43) for stamping and bending the workpiece and a bending platform (45) for bearing the workpiece;
the clamping manipulator (3) is used for transferring the workpiece from the spot welding working platform (22) to the bending platform (45);
and the blanking mechanism (5) is used for pushing the workpiece out of the stamping device (43) for blanking.
2. An automated spot welding line of clip nuts, as claimed in claim 1, characterized in that said spot welding assembly (21) further comprises:
an electrode head (211) driven by a welding cylinder (215) for welding the nut and the clip together;
and the cover plate (214) is driven by the double-shaft air cylinder (213) and is used for limiting the welded assembly.
3. An automated spot welding line of clip nuts, as claimed in claim 2, characterized in that said spot welding work platform (22) comprises:
the feeding assembly (221), the feeding assembly (221) comprises a nut feeding channel (2211) connected with the nut feeding rail (121) and a clamping piece feeding channel (2212) connected with the clamping piece feeding rail (122);
the clamping piece pushing assembly (222) comprises a clamping piece guide groove (2222) and a clamping piece pushing block (2221) driven by a clamping piece pushing cylinder (2223), one end of the clamping piece guide groove (2222) is provided with the clamping piece pushing cylinder (2223), the other end of the clamping piece guide groove is communicated with the upper part of the lower electrode (212), one end, far away from the clamping piece conveying rail (122), of the clamping piece feeding channel (2212) is communicated with the clamping piece guide groove (2222), and the clamping piece pushing cylinder (2223) drives the clamping piece pushing block (2221) to push the clamping piece, conveyed into the clamping piece guide groove (2222) by the feeding assembly (221), onto the lower electrode (212);
the nut pushing assembly (223) comprises a nut guide groove (2232) and a nut push block (2231) pushed by a nut pushing cylinder (2233), one end of the nut guide groove (2232) is provided with the nut pushing cylinder (2233), the other end of the nut guide groove is communicated with the upper part of the lower electrode (212), one end of the nut feeding channel (2211) far away from the nut feeding track (121) is communicated with the nut guide groove (2232), and the nut pushing cylinder (2233) drives the nut push block (2231) to push the nut fed into the nut guide groove (2232) by the feeding assembly (221) onto the lower electrode (212) to be spot-welded with the clamping piece;
the material pushing assembly (224) comprises a first material pushing groove (2242) and a first push block (2241) driven by a first material pushing cylinder (2243) and moving along the first material pushing groove (2242), and the piston end of the first material pushing cylinder (2243) faces the upper side of the lower electrode (212).
4. The automatic spot welding production line of the clip nut as claimed in claim 3, wherein a workbench (225) is arranged at one end of the lower electrode (212) far away from the first material pushing cylinder (2243) and used for placing a post-welding component, a blanking notch (2251) is formed in the workbench (225), limiting columns (2252) are arranged on two sides of the blanking notch (2251), and the cover plate (214) is arranged above the workbench (225).
5. An automated spot welding line of a clip nut according to claim 4, characterized in that said bending mechanism (4) comprises:
the bending machine frame (41), wherein the bending machine frame (41) is arranged in the blanking direction of the workbench (225);
the bending machine comprises a bending machine frame (41), a bending table (45), a second material pushing groove (452) and a bending groove (451) are formed in the bending table (45), a material pushing rail (44) is arranged on one side of the bending table (45), a material loading groove (441) and a manipulator placing groove (442) are formed in the material pushing rail (44), one end of the second material pushing groove (452) is communicated with the bending groove (451), the other end of the second material pushing groove (452) is communicated with one end of the material loading groove (441) and is coaxially arranged, and the manipulator placing groove (442) is communicated with the material loading groove (441);
the material pushing device (42) is arranged at the feeding end of the bending table (45);
the stamping device (43) is arranged above the bending platform (45) and comprises a stamping frame (431) arranged on the bending rack (41), a stamping cylinder (432) arranged on the stamping frame (431), a stamping seat (433) arranged at the output end of the stamping cylinder (432) and a stamping head (434) arranged at the bottom end of the stamping seat (433).
6. The automatic spot welding production line of the clip nut as claimed in claim 5, wherein the material pushing device (42) comprises a second material pushing cylinder (421) arranged on the bending machine frame (41), a push rod (422) arranged at the output end of the second material pushing cylinder (421), and a second push block (423) connected with the push rod (422).
7. The automatic spot welding production line of the clip nut as claimed in claim 6, wherein the stamping head (434) comprises a fixed end (4341) and a stamping and bending end (4342) arranged at the bottom end of the fixed end (4341), a stamping head clearance groove (4343) is formed in the middle of the stamping and bending end (4342), the top surface of the stamping head clearance groove (4343) is of an inclined surface structure, the bottom surface of the stamping head clearance groove (4343) is of a plane structure, and a smooth transition surface (4344) is arranged at the bottom end of the stamping and bending end (4342).
8. An automated spot welding line of clip nuts, as claimed in claim 5, characterized in that said clamping robot (3) is provided between said work table (225) and said robot placement slot (442), comprising:
a mechanical clamping jaw (31) for clamping the post-weld assembly;
the clamping jaw air cylinder (32) is used for driving the mechanical clamping jaw (31) to open and close;
the mechanical clamping jaw mechanism comprises a telescopic cylinder (33), a clamping jaw cylinder (32) is arranged at the piston end of the telescopic cylinder (33), and the mechanical clamping jaw (31), the clamping jaw cylinder (32) and the telescopic cylinder (33) are sequentially arranged on the same straight line;
and the rotating cylinder (34) is used for driving the telescopic cylinder (33) to rotate.
9. The automatic spot welding production line of a clip nut as claimed in claim 8, wherein the blanking mechanism (5) comprises a guide rail (53), a pushing member (51) and a third pushing cylinder (52) for driving the pushing member (51) to move, a pushing groove (55) is formed in the pushing member (51), and a material guide plate (54) is arranged below one side of the pushing member (51) far away from the pushing cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022719252.3U CN213672787U (en) | 2020-11-20 | 2020-11-20 | Automatic spot welding production line for clamping piece nuts |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022719252.3U CN213672787U (en) | 2020-11-20 | 2020-11-20 | Automatic spot welding production line for clamping piece nuts |
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| Publication Number | Publication Date |
|---|---|
| CN213672787U true CN213672787U (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022719252.3U Active CN213672787U (en) | 2020-11-20 | 2020-11-20 | Automatic spot welding production line for clamping piece nuts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113859924A (en) * | 2021-10-19 | 2021-12-31 | 上海衡望智能科技有限公司 | Soldering lug feeding device for automatic balancing machine of transmission shaft |
-
2020
- 2020-11-20 CN CN202022719252.3U patent/CN213672787U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113859924A (en) * | 2021-10-19 | 2021-12-31 | 上海衡望智能科技有限公司 | Soldering lug feeding device for automatic balancing machine of transmission shaft |
| CN113859924B (en) * | 2021-10-19 | 2023-06-09 | 上海衡望智能科技有限公司 | Soldering lug feeding device for automatic balancing machine of transmission shaft |
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