CN114932369B - Can realize nut machine pay-off structure of accurate material loading - Google Patents
Can realize nut machine pay-off structure of accurate material loading Download PDFInfo
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- CN114932369B CN114932369B CN202210593990.9A CN202210593990A CN114932369B CN 114932369 B CN114932369 B CN 114932369B CN 202210593990 A CN202210593990 A CN 202210593990A CN 114932369 B CN114932369 B CN 114932369B
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- plate
- nut
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- fixedly connected
- feeding
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/04—Devices for feeding articles or materials to conveyors for feeding articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Resistance Welding (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a feeding structure of a nut machine, which can realize accurate feeding and comprises a nut spot welding machine main body, wherein a spot welding rod is arranged on the nut spot welding machine main body, a supporting plate is fixedly connected with the nut spot welding machine main body, a positioning plate is arranged above the supporting plate, the positioning plate can be automatically fed through a feeding group, then the positioning plate clamps and fixes a workpiece to be processed, the workpiece is prevented from deviating in the processing process of the workpiece to influence the placement precision of a nut, and when the spot welding rod descends each time to weld the workpiece, a driving assembly can drive the positioning plate to move along a rectangular track, so that the position of a welded mounting hole is moved to other positions, and the situation that the workpiece is continuously fixed by a manual piece in the processing process and the workpiece is rotated to change the mounting hole is avoided.
Description
Technical Field
The invention relates to the technical field of nut machines, in particular to a nut machine feeding structure capable of realizing accurate feeding.
Background
The nut machine comprises a nut spot-welding machine, wherein in the processing and assembling process of a workpiece, a nut is placed on a mounting hole of the workpiece firstly, then the nut and the workpiece are welded through the nut spot-welding machine, and during later assembling, the nut spot-welding machine can be directly fixed on the workpiece through screws or other components, so that later assembling is facilitated.
When the existing nut machine is used for spot welding of workpieces, nut parts are installed on installation holes of the workpieces manually, namely, the workpieces to be machined are placed below a nut spot welder manually, nuts are placed above the workpiece installation holes manually one by one, the spot welder needs to rotate the workpieces manually after welding one nut each time the spot welder descends, installation spaces needing spot welding next time are aligned to the lower portion of a spot welding rod, spot welding is carried out again after the nuts are placed, nuts are installed on the workpieces manually, production automation cannot be achieved, the efficiency is still low, and production requirements cannot be met; in addition, the workpiece and the nut are manually fed and discharged, the workpiece is reversed in the machining process, the labor intensity of workers is high, and the labor cost is high.
Based on the above, the invention designs a nut machine feeding structure capable of realizing accurate feeding, so as to solve the above problems.
Disclosure of Invention
The invention aims to provide a nut machine feeding structure capable of realizing accurate feeding so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a nut spot welder feeding structure capable of achieving accurate feeding comprises a nut spot welder main body, wherein a spot welding rod is arranged on the nut spot welder main body, a supporting plate is fixedly connected to the nut spot welder main body, and a positioning plate is arranged above the supporting plate; the locating plate is used for clamping and positioning the workpiece, a feeding group is arranged at the rear of the locating plate and used for feeding and discharging the locating plate, a nut placing group is arranged in front of the locating plate and used for placing the nut above a hole formed in the workpiece, a driving group is arranged above the supporting plate and used for driving the locating plate to move in a rectangular track when the spot welding rod descends, and therefore the spot welding rod can perform spot welding on the nuts at different positions of the workpiece.
As a further scheme of the invention, the driving set comprises a fixed plate and a second belt pulley, the fixed plate is fixedly connected with the spot welding rod, the fixed plate is rotatably connected with a push rod, the push rod is rotatably connected with a connecting plate, the connecting plate is slidably connected with the supporting plate, the connecting plate is fixedly connected with a vertical plate, a plurality of pawls are rotatably connected to the side wall of the vertical plate, the pawls are engaged with a ratchet wheel, the ratchet wheel is fixedly connected with a first belt pulley, the first belt pulley is rotatably connected to the supporting plate, the second belt pulley is positioned below the positioning plate, the second belt pulley is rotatably connected with the supporting plate, the second belt pulley is fixedly connected with an elastic telescopic rod, the elastic telescopic rod is fixedly connected with a rotating shaft, the rotating shaft is rotatably connected with a limiting piece, the limiting piece is fixedly connected to the bottom of the positioning plate, the limiting piece is slidably connected with a limiting frame, the limiting frame and the limiting piece are rectangular, the limiting frame is fixedly connected with the supporting plate, and a belt is in transmission connection between the first belt pulley and the second belt pulley.
According to a further scheme of the invention, the nut placing group comprises a transverse plate and a gear, the gear is rotatably connected with a nut spot welding machine main body, the gear is meshed with a tooth rod, the tooth rod is fixedly connected to the bottom of a vertical plate, the gear is fixedly connected with a first loop bar, the first loop bar is slidably connected with a first supporting rod, the first supporting rod is rotatably connected with a strip-shaped plate, the strip-shaped plate is slidably connected with two clamping rods, the transverse plate is fixedly connected with the nut spot welding machine main body, the transverse plate is provided with two limiting grooves, the two limiting grooves are trapezoidal, the two clamping rods are respectively slidably connected with the two limiting grooves, two limiting plates are arranged between the two clamping rods and are fixedly connected with the transverse plate, the two limiting plates are used for limiting conveyed nuts, the two clamping rods are both fixedly connected with a first magnet block, the transverse plate is fixedly connected with two second magnet blocks, a turning group is arranged in each limiting groove, and the turning group is used for changing the sliding direction of the clamping rods.
As a further scheme of the invention, the positioning plate comprises two clamping plates, the two clamping plates are both in sliding connection with the positioning plate, the two clamping plates are both fixedly connected with a second spring, and the two clamping plates are both hollow.
As a further scheme of the invention, the feeding group comprises a workpiece frame and two rectangular blocks, the workpiece frame is fixedly connected with the nut spot welding machine main body, the workpiece frame is slidably connected with two feeding plates, the two feeding plates are symmetrically arranged about the workpiece frame, the two feeding plates are rotatably connected with push plates, rotating shafts of the two push plates are respectively sleeved with a first torsion spring, the two feeding plates are rotatably connected with a second supporting rod, the two second supporting rods are respectively slidably connected with a second loop bar, the two second loop bars are respectively rotatably connected with the nut spot welding machine main body, the two second loop bars are respectively rotatably connected with an air cylinder, the two air cylinders are respectively fixedly connected with the nut spot welding machine main body, the workpiece frame is provided with two sliding grooves, the two rectangular blocks are respectively slidably connected between the two sliding grooves, the two rectangular blocks and the two sliding grooves are respectively fixedly connected with a first spring, and the two rectangular blocks are respectively rotatably connected with an L-shaped rod; and the rotating shafts of the two L-shaped rods are sleeved with second torsion springs for resetting the L-shaped rods, and the elasticity of the second torsion springs is greater than that of the first torsion springs.
As a further scheme of the invention, the turning group comprises a guide piece, and the guide piece is rotatably connected to the inner wall of the limiting groove; and a third torsion spring for resetting the guide piece is sleeved on the rotating shaft of the guide piece.
As a further scheme of the invention, the end parts of the two clamping rods are V-shaped.
As a further aspect of the invention, the belt is a toothed drive belt.
Compared with the prior art, the invention has the beneficial effects that:
the locating plate can be automatically fed through the feeding group, then the locating plate clamps and fixes a workpiece to be processed, the workpiece is prevented from deviating in the process of processing the workpiece to influence the placement accuracy of the nut, when the spot welding rod descends to weld the workpiece each time, the driving assembly can drive the locating plate to move along the rectangular track, the position of the welded mounting hole is moved to other positions, manual work is not needed to continuously fix the workpiece and rotate the workpiece to change the direction of the mounting hole in the processing process, each mounting hole of the workpiece to be processed is ensured to be sequentially placed with the nut by the nut placing group to place the upper nut, the nut is placed and welded with the workpiece through the spot welding rod after completion, manual work is not needed to place the nut, the automation degree is high, the condition of manual work and foot disorder cannot be generated in processing, the manual labor intensity and the manual use cost are reduced, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a connection diagram of the connection plate and the riser of the invention;
FIG. 3 is a schematic view of the ratchet and pawl connection of the present invention;
FIG. 4 is a bottom view of a second pulley of the present invention;
FIG. 5 is a view showing the connection relationship and the position relationship between the shaft and the elastic extensible rod according to the present invention;
FIG. 6 is a top plan view of the nut placing group of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6 at A;
FIG. 8 is a schematic structural view of a loading group according to the present invention;
FIG. 9 is an enlarged view of a portion of FIG. 8 at B;
fig. 10 is a partial enlarged view at C in fig. 8.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a nut spot welder body; 2. spot welding a rod; 3. a support plate; 4. positioning a plate; 5. a fixing plate; 6. a push rod; 7. a connecting plate; 8. a vertical plate; 9. a pawl; 10. a ratchet wheel; 11. a first pulley; 12. a second pulley; 13. an elastic telescopic rod; 14. a rotating shaft; 15. a limiting sheet; 16. a limiting frame; 17. a belt; 18. a transverse plate; 19. a limiting groove; 20. a clamping bar; 21. a limiting plate; 22. a gear; 23. a tooth bar; 24. a first loop bar; 25. a first support bar; 26. a strip-shaped plate; 27. a first magnet block; 28. a second magnet block; 29. a workpiece frame; 30. feeding plates; 31. pushing the plate; 32. a first torsion spring; 33. a second support bar; 34. a second loop bar; 35. a cylinder; 36. a rectangular block; 37. a chute; 38. an L-shaped rod; 39. a first spring; 40. a second torsion spring; 41. a clamping plate; 42. a second spring; 43. a guide piece; 44. a third torsion spring.
Detailed Description
Referring to fig. 1-10, the present invention provides a technical solution: a nut spot welder feeding structure capable of realizing accurate feeding comprises a nut spot welder main body 1, wherein a spot welding rod 2 is arranged on the nut spot welder main body 1, a supporting plate 3 is fixedly connected to the nut spot welder main body 1, and a positioning plate 4 is arranged above the supporting plate 3; the utility model discloses a spot welding rod 2, including locating plate 4, nut, backup pad 3, locating plate 4 is used for pressing from both sides tight location to the work piece, 4 backs of locating plate are provided with the material loading group, the material loading group is used for pay-off and unloading to locating plate 4, 4 the place ahead of locating plate are provided with the nut and place the group, the nut is placed the group and is used for placing the hole top that the work piece was seted up with the nut, the drive group is provided with the drive group above the backup pad, the drive group is used for driving locating plate 4 when spot welding rod 2 descends and carries out the removal of rectangle orbit and makes spot welding rod 2 can carry out spot welding to the nut of the different positions of work piece.
When the scheme is put into practical use, a worker firstly conveys a workpiece to be machined to a positioning plate 4 through a feeding group, the positioning plate 4 can be supported through a supporting plate 3, then a spot welding rod 2 descends, a driving group can drive the positioning plate 4 to move for a certain distance along a rectangular track when the spot welding rod 2 descends, a nut placing group can place a nut on a mounting hole of the workpiece, the spot welding rod 2 welds the nut and the workpiece together after the nut is placed above the mounting hole, then the spot welding rod 2 ascends, when the spot welding rod 2 descends again, the driving group can drive the positioning plate 4 to move again, so that the position of the welded nut moves to other places, the mounting hole position of the unwelded nut moves to be right below the spot welding rod 2, the nut placing group can continue to place the nut on the unwelded mounting hole position in the descending process of the spot welding rod 2, after the spot welding rod 2 welds the nut and the workpiece, the spot welding rod 2 ascends again until all four mounting holes of the workpiece are welded with female screws, the feeding group is started, the upper positioning plate 4 can drive the positioning plate 4 to remove the workpiece to be clamped by the workpiece to be machined, and then the positioning plate 4 to be conveniently ejected one time;
through the material loading group, the positioning plate 4 can be automatically loaded, then the positioning plate 4 clamps and fixes a workpiece to be processed, the workpiece is prevented from being deviated in the process of processing the workpiece to influence the placement precision of the nut, when the spot welding rod 2 descends to weld the workpiece each time, the driving assembly can drive the positioning plate 4 to move along the rectangular track, the welded mounting holes are moved to other positions, manual work is not required to be continuously carried out in the process of processing to fix the workpiece and rotate the workpiece to carry out the reversing of the mounting holes, each mounting hole of the workpiece to be processed is ensured to be sequentially placed by the nut to place the group for placing the nut, the nut is placed by the spot welding rod 2 to weld the nut and the workpiece after the completion, manual work is not required to place the nut, the automation degree is high, the condition of manual work and manual work disorder cannot be generated during processing, the manual labor intensity and the manual use cost are reduced, and the production efficiency is improved.
As a further scheme of the invention, the driving set comprises a fixed plate 5 and a second belt pulley 12, the fixed plate 5 is fixedly connected with a spot welding rod 2, the fixed plate 5 is rotatably connected with a push rod 6, the push rod 6 is rotatably connected with a connecting plate 7, the connecting plate 7 is slidably connected with a supporting plate 3, the connecting plate 7 is fixedly connected with a vertical plate 8, the side wall of the vertical plate 8 is rotatably connected with a plurality of pawls 9, the pawls 9 are engaged with ratchet wheels 10, the ratchet wheels 10 are fixedly connected with a first belt pulley 11, the first belt pulley 11 is rotatably connected with the supporting plate 3, the second belt pulley 12 is positioned below the positioning plate 4, the second belt pulley 12 is rotatably connected with the supporting plate 3, the second belt pulley 12 is fixedly connected with an elastic telescopic rod 13, the elastic telescopic rod 13 is fixedly connected with a rotating shaft 14, the rotating shaft 14 is rotatably connected with a limiting piece 15, the limiting piece 15 is fixedly connected to the bottom of the positioning plate 4, the limiting piece 15 is slidably connected with a limiting frame 16, the limiting frame 16 and the limiting piece 15 are both rectangular, the limiting frame 16 is fixedly connected with the supporting plate 3, and a transmission belt 17 is connected between the first belt pulley 11 and the second belt 12.
When the driving group works, after the feeding group finishes feeding to the positioning plate 4, the spot welding rod 2 descends, when the spot welding rod 2 descends, the fixed plate 5 and the push rod 6 push the connecting plate 7 to slide along the supporting plate 3, when the connecting plate 7 slides, the vertical plate 8 is driven to move, when the vertical plate 8 moves, the pawl 9 is driven to be meshed with the ratchet wheel 10, when the ratchet wheel 10 rotates, the first belt pulley 11 is driven to rotate, then the first belt pulley 11 drives the second belt pulley 12 to rotate through the belt 17, when the second belt pulley 12 rotates, the elastic telescopic rod 13 is driven to rotate with the rotating shaft 14, because the limiting piece 15 and the limiting frame 16 are rectangular, the limiting piece 16 is connected with the limiting frame 15 in a sliding manner, when the second belt pulley 12 drives the elastic telescopic rod 13 to rotate, the elastic telescopic rod 13 drives the limiting piece 15 to linearly move along the inner side wall of the limiting frame 16 in a ' return ' shape ', anticlockwise, so that the positioning plate 4 drives a workpiece to move forwards by one end distance, and, the pawl 9 and the limiting piece 15 of the ratchet 10 can only slide once along the limiting frame 16 each time to make the position of the mounting hole which has been welded at the last time change and place the nut before contacting with the spot welding rod 2, so that the position without welding can move to the lower part of the spot welding rod 2 to be placed by the nut placing group for nut placement and then welding, and when the workpiece is fixed on the positioning plate 4, the positioning plate 4 drives the workpiece to move forward when the spot welding rod 2 descends for the first time, at this time, the second mounting hole above the workpiece is positioned right below the spot welding rod 2, the nut placing group also places the nut on the second mounting hole of the workpiece first, when the spot welding rod 2 descends again, the pawl 9 drives the ratchet 10 to rotate again, at this time, the elastic telescopic rod 13 rotates to drive the limiting piece 15 to rotate along one side edge of the limiting frame 16 again, therefore, the third mounting hole is moved to the position below the spot welding rod 2, the first mounting hole and the nut can be welded when the spot welding rod 2 descends for the fourth time through the rotating mode, and therefore a welding process is carried out or the positioning plate 4 is located at the initial position, and feeding and discharging of a feeding group cannot be influenced;
when welding the mounting hole of the workpiece and the nut, the pawl 9 of the spot welding rod 2 can be meshed with the ratchet wheel 10 when descending, the pawl 9 cannot be meshed with the ratchet wheel 10 when the spot welding rod 2 ascends, the pawl 9 and the ratchet wheel 10 can only slide once along the limiting frame 16 when meshing the limiting piece 15 each time, therefore, the position of the mounting hole which is welded last time is changed and the nut is placed before contacting with the spot welding rod 2, the position which is not welded can move to the lower part of the spot welding rod 2 and is placed by the nut placing group, then welding is carried out, manual work is not needed to hold the workpiece to change positions of different mounting holes during machining, the efficiency is improved, the driving assembly and the spot welding rod 2 synchronously move, and the process is integrated.
As a further scheme of the present invention, the nut placing group includes a transverse plate 18 and a gear 22, the gear 22 is rotatably connected with the nut spot welder main body 1, the gear 22 is engaged with a tooth rod 23, the tooth rod 23 is fixedly connected to the bottom of the vertical plate 8, the gear 22 is fixedly connected with a first sleeve rod 24, the first sleeve rod 24 is slidably connected with a first support rod 25, the first support rod 25 is rotatably connected with a strip-shaped plate 26, the strip-shaped plate 26 is slidably connected with two clamping rods 20, the transverse plate 18 is fixedly connected with the nut spot welder main body 1, the transverse plate 18 is provided with two limiting grooves 19, the two limiting grooves 19 are trapezoidal, the two clamping rods 20 are respectively slidably connected with the two limiting grooves 19, two limiting plates 21 are arranged between the two clamping rods 20 and fixedly connected with the transverse plate 18, the two limiting plates 21 are used for limiting conveyed nuts, the two clamping rods 20 are both fixedly connected with a first magnet block 27, the transverse plate 18 is fixedly connected with two second magnet blocks 28, two limiting grooves 19 are both provided with a direction changing group, and a direction changing group is used for changing the sliding direction of the clamping rods 20.
When the nut placing group works, nuts can be sequentially conveyed along two limiting plates 21 above a transverse plate 18 through a vibrating disc or other modes, when a spot welding rod 2 descends, a connecting plate 7 drives a vertical plate 8 to move, when the vertical plate 8 moves, a tooth rod 23 moves, the tooth rod 23 is meshed with a gear 22 to drive the gear 22 to rotate, when the gear 22 rotates, a strip-shaped plate 26 is driven by a first sleeve rod 24 and a first support rod 25 to move towards a direction close to a positioning plate 4, when the strip-shaped plate 26 moves, two clamping rods 20 are driven to slide along a limiting groove 19, when the clamping rod 20 slides to the rightmost end of the limiting groove 19, a limiting frame 16 is driven by a limiting piece 15 to move, the nut clamped by the clamping rods 20 moves to be right above a workpiece surface mounting hole, at the moment, the first magnet block 27 is magnetically adsorbed by a second magnet block 28, the limiting groove 19 is trapezoidal, when the second magnet block 28 adsorbs the first magnet block 27, the two clamping rods 20 slide towards the limiting plate 21, so that the two clamping rods 20 are separated from the nut, and the nut is prevented from being connected with the workpiece during welding;
after the nut and a workpiece are welded by the spot welding rod 2, the spot welding rod 2 rises, when the spot welding rod 2 rises, the push rod 6 drives the connecting plate 7 and the vertical plate 8 to move towards the direction close to the positioning plate 4, when the vertical plate 8 moves, the tooth rod 23 is meshed with the gear 22 to drive the first sleeve rod 24 and the first support rod 25 to rotate towards the direction far away from the positioning plate 4, when the first support rod 25 rotates, the strip-shaped plate 26 drives the two clamping rods 20 to move, the two clamping rods 20 can move to the leftmost end of the limiting groove 19, when the spot welding rod 2 descends next time, the strip-shaped plate 26 after the tooth rod 23 is meshed with the gear 22 drives the two clamping rods 20 to move towards the direction close to the positioning plate 4, when the two clamping rods 20 move, the two clamping rods 20 slide along the inclined section of the trapezoidal limiting groove 19 under the action of the turning group, when the inclined section slides, the clamping parts of the two clamping rods 20 can clamp the nut, so that the nut is fixed, and then when the nut is placed above the workpiece mounting hole, the nut is released, so that the nut is smoothly placed on the mounting hole;
when the spot welding rod 2 descends, the nut is placed to the mounting hole of the workpiece, the nut is placed, manual participation is not needed, the nut placed by the group is placed through the nut, the nut is placed neatly, the precision is high, labor cost and labor force are saved, moreover, the nut is placed, the group and the driving group listen to the spot welding rod 2, other power sources are not needed for driving, the process is integrated, and the structure is simple.
As a further aspect of the present invention, the positioning plate 4 includes two clamping plates 41, both of the two clamping plates 41 are slidably connected to the positioning plate 4, both of the two clamping plates 41 are fixedly connected to a second spring 42, and both of the two clamping plates 41 are hollow.
Above-mentioned scheme is at the during operation, and during the material loading, the material loading group can strut two clamp plates 41 to both sides, then will process the work piece that the completion is ejecting among two clamp plates 41, later place new work piece among locating plate 4, then two clamp plates 41 press from both sides new work piece tight fixed under the effect of second spring 42, prevent that the work piece from rocking at will when processing.
As a further scheme of the present invention, the feeding group includes a workpiece frame 29 and two rectangular blocks 36, the workpiece frame 29 is fixedly connected to the nut spot welding machine main body 1, the workpiece frame 29 is slidably connected to two feeding plates 30, the two feeding plates 30 are symmetrically arranged with respect to the workpiece frame 29, the two feeding plates 30 are both rotatably connected to a pushing plate 31, the rotating shafts of the two pushing plates 31 are both sleeved with a first torsion spring 32, the two feeding plates 30 are both rotatably connected to a second supporting rod 33, the two second supporting rods 33 are both slidably connected to a second sleeve rod 34, the two second sleeve rods 34 are both rotatably connected to the nut spot welding machine main body 1, the two second sleeve rods 34 are both rotatably connected to a cylinder 35, the two cylinders 35 are both fixedly connected to the nut spot welding machine main body 1, the workpiece frame 29 is provided with two sliding grooves 37, the two rectangular blocks 36 are respectively slidably connected to the two sliding grooves 37, a first spring 39 is both fixedly connected between the two rectangular blocks 36 and the two sliding grooves 37, and the two rectangular blocks 36 are both rotatably connected to an L-shaped rod 38; two the axis of rotation of L type pole 38 all cup joints second torsional spring 40 that is used for its to reset, the elasticity of second torsional spring 40 is greater than first spring 39.
When the feeding group works, after four nuts of a workpiece are welded, two air cylinders 35 are started, the air cylinders 35 extend to push the second sleeve rods 34 and the second supporting rods 33 to rotate, the second sleeve rods 34 are in sliding connection with the second supporting rods 33, so that the sliding of the feeding plate 30 can be adapted, the second supporting rods 33 can push the feeding plate 30 and the push plate 31 to move, when the push plate 31 moves, the workpiece in the workpiece frame 29 moves along the workpiece frame 29, the workpiece frame 29 is not completely sealed, a through groove is formed in the position, close to the lower part, of the workpiece frame 29, the height of the through groove is the same as the height of the workpiece, so that the feeding plate 30 and the push plate 31 can only push the lowest workpiece to move, when the front end of the workpiece moves to the position in contact with the L-shaped rod 38, because the elastic force of the second torsion spring 40 is greater than that of the first spring 39, when the workpiece pushes the L-shaped rod 38, the L-shaped rod 38 can drive the rectangular block 36 to slide in the through groove 37, when the rectangular block 36 slides to the foremost end of the sliding slot 37, the first spring 39 is compressed to the limit state, because the clamping plate 41 is hollow, when the first spring 39 is compressed to the limit state, one end of the L-shaped rod 38 is inserted into the clamping plate 41, when the cylinder 35 extends continuously, the feeding plate 30 and the pushing plate 31 continue to push the workpiece to move forward along the workpiece frame 29, and when the workpiece moves forward, one end of the L-shaped rod 38 is pushed, so that the other end of the L-shaped rod 38 pushes the clamping plate 41 to two sides, so that the clamping plate 41 is unfolded to two sides, at this time, the clamping plate 41 releases the clamping fixation of the processed workpiece, and a new workpiece pushes the processed workpiece down from the positioning plate 4 when moving forward, so that the new workpiece enters the positioning plate 4, and when the new workpiece enters the positioning plate 4, the L-shaped rod 38 is reset under the action of the second torsion spring 40 and the first spring 39, then the cylinder 35 drives the second sleeve rod 34 and the second support rod 33 to reset, the loading and unloading of workpieces are completed, workers are not required to carry out loading and unloading, and time and labor cost are saved;
after the upper material plate 30 and the push plate 31 push a new workpiece into the positioning plate 4, the workpiece in the workpiece frame 29 automatically descends, and at this time, the position of the push plate 31 is in front of the workpiece in the workpiece frame 29, when the push plate 31 retreats, the push plate 31 is blocked by the new workpiece, rotates around the rotating shaft, and extrudes the first torsion spring 32 during rotation until the push plate 31 returns to the rear of the workpiece after the air cylinder 35 resets, and at this time, the first torsion spring 32 drives the push plate 31 to reset, so that the next pushing operation is facilitated.
As a further scheme of the invention, the direction changing set comprises a guide piece 43, and the guide piece 43 is rotatably connected to the inner wall of the limit groove 19; and a third torsion spring 44 for resetting the guide piece 43 is sleeved on the rotating shaft of the guide piece.
As a further aspect of the present invention, the ends of the two clamping bars 20 are V-shaped.
When the scheme works, the clamping rod 20 with the V-shaped end part is matched with the nut in shape, so that the clamping is convenient.
As a further aspect of the invention, the belt 17 is a toothed drive belt.
When the scheme works, the friction of the tooth transmission belt is large, and the idle running of the belt 17 is prevented.
The working principle is as follows: a worker firstly conveys a workpiece to be machined to a positioning plate 4 through a feeding group, the positioning plate 4 can be supported through a supporting plate 3, then a spot welding rod 2 descends, a driving group can drive the positioning plate 4 to move for a distance along a rectangular track when the spot welding rod 2 descends, a nut placing group can place a nut on a mounting hole of the workpiece, the spot welding rod 2 welds the nut and the workpiece together after the nut is placed above the mounting hole, then the spot welding rod 2 ascends, the driving group can drive the positioning plate 4 to move again when the spot welding rod 2 descends again, the position of the welded nut is moved to other places, the position of the unwelded mounting hole of the nut moves to the position right below the spot welding rod 2, the nut placing group can continue to place the nut on the unwelded mounting hole during descending of the spot welding rod 2, the spot welding rod 2 ascends again after the nut and the workpiece are welded, the feeding group is started until all the four mounting holes of the workpiece are welded with screws, the feeding group can drive the positioning plate 4 to release the clamping of the welded workpiece 4, then the welded workpiece is placed on the positioning plate 4, and the positioning plate 4 is pushed out of the workpiece to the positioning plate to be machined to be convenient for one time;
through the material loading group, the positioning plate 4 can be automatically loaded, then the positioning plate 4 clamps and fixes a workpiece to be processed, the workpiece is prevented from being deviated in the process of processing the workpiece to influence the placement precision of the nut, when the spot welding rod 2 descends to weld the workpiece each time, the driving assembly can drive the positioning plate 4 to move along the rectangular track, the welded mounting holes are moved to other positions, manual work is not required to be continuously carried out in the process of processing to fix the workpiece and rotate the workpiece to carry out the reversing of the mounting holes, each mounting hole of the workpiece to be processed is ensured to be sequentially placed by the nut to place the group for placing the nut, the nut is placed by the spot welding rod 2 to weld the nut and the workpiece after the completion, manual work is not required to place the nut, the automation degree is high, the condition of manual work and manual work disorder cannot be generated during processing, the manual labor intensity and the manual use cost are reduced, and the production efficiency is improved.
Claims (7)
1. The utility model provides a can realize nut machine pay-off structure of accurate material loading, includes nut spot welder main part (1), nut spot welder main part (1) is provided with spot welding pole (2), its characterized in that: the nut spot welder comprises a nut spot welder body (1), wherein a supporting plate (3) is fixedly connected with the nut spot welder body, and a positioning plate (4) is arranged above the supporting plate (3); the positioning plate (4) is used for clamping and positioning a workpiece, a feeding group is arranged behind the positioning plate (4), the feeding group is used for feeding the workpiece to be welded, a nut placing group is arranged in front of the positioning plate (4), the nut placing group is used for placing nuts above holes formed in the workpiece, a driving group is arranged above the supporting plate (3), and the driving group is used for driving the positioning plate (4) to move in a rectangular track when the spot welding rod (2) descends, so that the spot welding rod (2) can perform spot welding on the nuts at different positions of the workpiece;
the driving set comprises a fixed plate (5) and a second belt pulley (12), the fixed plate (5) is fixedly connected with a spot welding rod (2), the fixed plate (5) is rotatably connected with a push rod (6), the push rod (6) is rotatably connected with a connecting plate (7), the connecting plate (7) is slidably connected with a support plate (3), the connecting plate (7) is fixedly connected with a vertical plate (8), a plurality of pawls (9) are rotatably connected on the side wall of the vertical plate (8), the pawls (9) are meshed with ratchet wheels (10), the ratchet wheels (10) are fixedly connected with a first belt pulley (11), the first belt pulley (11) is rotatably connected on the support plate (3), the second belt pulley (12) is positioned below a positioning plate (4), the second belt pulley (12) is rotatably connected with the support plate (3), the second belt pulley (12) is fixedly connected with an elastic telescopic rod (13), the elastic telescopic rod (13) is fixedly connected with a rotating shaft (14), the rotating shaft (14) is rotatably connected with a limiting piece (15), the limiting piece (15) is fixedly connected at the bottom of the positioning plate (4), and the limiting frame (16) is connected with a rectangular limiting frame (16), spacing frame (16) and backup pad (3) fixed connection, be connected with belt (17) between first belt pulley (11) and second belt pulley (12) the transmission.
2. The feeding structure of the nut machine capable of realizing accurate feeding of the claim 1 is characterized in that: the nut placing group comprises a transverse plate (18) and a gear (22), the gear (22) is rotationally connected with the nut spot welding machine main body (1), the gear (22) is engaged with a tooth rod (23), the tooth rod (23) is fixedly connected to the bottom of the vertical plate (8), the gear (22) is fixedly connected with a first loop bar (24), the first loop bar (24) is connected with a first support bar (25) in a sliding way, the first supporting rod (25) is rotationally connected with a strip-shaped plate (26), the strip-shaped plate (26) is connected with two clamping rods (20) in a sliding way, the transverse plate (18) is fixedly connected with the nut spot welding machine main body (1), the conveying device is characterized in that two limiting grooves (19) are formed in the transverse plate (18), the two limiting grooves (19) are trapezoidal, the two clamping rods (20) are respectively in sliding connection with the two limiting grooves (19), two limiting plates (21) are arranged between the two clamping rods (20) and are fixedly connected with the transverse plate (18), the two limiting plates (21) are used for limiting conveyed nuts, the two clamping rods (20) are fixedly connected with first magnet blocks (27), the transverse plate (18) is fixedly connected with two second magnet blocks (28), and two turning groups are arranged in the limiting grooves (19) and used for changing the sliding direction of the clamping rod (20).
3. The nut machine feeding structure capable of realizing accurate feeding according to claim 1, characterized in that: the locating plate (4) includes two clamp plates (41), two clamp plate (41) all with locating plate (4) sliding connection, two the equal fixedly connected with second spring (42) of clamp plate (41), two clamp plate (41) are the cavity form.
4. The feeding structure of the nut machine capable of realizing accurate feeding of the claim 1 is characterized in that: the feeding group comprises a workpiece frame (29) and two rectangular blocks (36), the workpiece frame (29) is fixedly connected with a nut spot welder main body (1), the workpiece frame (29) is connected with two feeding plates (30) in a sliding mode, the two feeding plates (30) are symmetrically arranged relative to the workpiece frame (29), the two feeding plates (30) are connected with pushing plates (31) in a rotating mode, rotating shafts of the two pushing plates (31) are sleeved with first torsion springs (32), the two feeding plates (30) are connected with second supporting rods (33) in a rotating mode, the two second supporting rods (33) are connected with second sleeve rods (34) in a sliding mode, the two second sleeve rods (34) are connected with the nut spot welder main body (1) in a rotating mode, the two second sleeve rods (34) are connected with air cylinders (35) in a rotating mode, the two air cylinders (35) are fixedly connected with the nut spot welder main body (1), the workpiece frame (29) is connected with two sliding grooves (37), the two rectangular blocks (36) are connected between the two rectangular blocks (36) in a sliding mode, and the two rectangular blocks (36) are connected with the first sliding grooves (38), and the two rectangular blocks (39) are connected with the first torsion springs (38); and the rotating shafts of the two L-shaped rods (38) are sleeved with second torsion springs (40) for resetting, and the elasticity of the second torsion springs (40) is greater than that of the first springs (39).
5. A nut machine pay-off structure that can realize accurate material loading of claim 2, characterized by: the turning group comprises a guide piece (43), and the guide piece (43) is rotatably connected to the inner wall of the limiting groove (19); and a third torsion spring (44) for resetting the guide piece (43) is sleeved on the rotating shaft of the guide piece.
6. The nut machine feeding structure capable of realizing accurate feeding according to claim 2, characterized in that: the end parts of the two clamping rods (20) are V-shaped.
7. A nut machine pay-off structure that can realize accurate material loading of claim 2, characterized by: the belt (17) is a tooth transmission belt.
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| CN202210593990.9A CN114932369B (en) | 2022-05-27 | 2022-05-27 | Can realize nut machine pay-off structure of accurate material loading |
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| CN115194309A (en) * | 2022-09-14 | 2022-10-18 | 泰州华丰精密铸造有限公司 | Equipment for spot welding of precise parts |
| CN115753447B (en) * | 2022-11-29 | 2023-06-23 | 浙江美盾防护技术有限公司 | Bullet-proof glass testing device and testing method thereof |
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| JPH1058154A (en) * | 1996-08-21 | 1998-03-03 | Yoshitaka Aoyama | Welding equipment of projection nut |
| CN207013857U (en) * | 2017-07-08 | 2018-02-16 | 天津市琪达汽车配件有限公司 | A kind of nut spot welding machine |
| CN111014922A (en) * | 2019-12-27 | 2020-04-17 | 浙江大学台州研究院 | Automatic spot welding equipment for electric spray ring |
| CN112008220A (en) * | 2020-08-18 | 2020-12-01 | 湖南泰川宏业有限公司 | Automatic conveying spot welding machine for nuts |
| CN215546107U (en) * | 2021-09-13 | 2022-01-18 | 青岛缘聚工贸有限公司 | Nut welding mechanism for metal structural part machining |
| CN114473470A (en) * | 2022-03-17 | 2022-05-13 | 浙江机电职业技术学院 | Automatic assembling equipment and assembling process |
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2022
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1058154A (en) * | 1996-08-21 | 1998-03-03 | Yoshitaka Aoyama | Welding equipment of projection nut |
| CN207013857U (en) * | 2017-07-08 | 2018-02-16 | 天津市琪达汽车配件有限公司 | A kind of nut spot welding machine |
| CN111014922A (en) * | 2019-12-27 | 2020-04-17 | 浙江大学台州研究院 | Automatic spot welding equipment for electric spray ring |
| CN112008220A (en) * | 2020-08-18 | 2020-12-01 | 湖南泰川宏业有限公司 | Automatic conveying spot welding machine for nuts |
| CN215546107U (en) * | 2021-09-13 | 2022-01-18 | 青岛缘聚工贸有限公司 | Nut welding mechanism for metal structural part machining |
| CN114473470A (en) * | 2022-03-17 | 2022-05-13 | 浙江机电职业技术学院 | Automatic assembling equipment and assembling process |
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