CN219170050U

CN219170050U - Seat skeleton upset welding mechanism

Info

Publication number: CN219170050U
Application number: CN202320328609.6U
Authority: CN
Inventors: 汤维成; 朱厚龙; 郑占军; 刘甲甲
Original assignee: Wuhu Zhuosheng Automotive Technology Co ltd
Current assignee: Wuhu Zhuosheng Automotive Technology Co ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-06-13
Anticipated expiration: 2033-02-23

Abstract

The utility model provides a seat framework overturning welding mechanism, which comprises a base, wherein two ends of the base are fixedly provided with supports, the upper ends of the supports are provided with rotating shafts which are rotationally connected, opposite ends of the two rotating shafts are symmetrically provided with clamping assemblies, the supports are also fixedly provided with motors, output shafts of the motors are fixedly connected with the rotating shafts, the clamping assemblies comprise rotating plates which are fixedly arranged at the end parts of the rotating shafts, two clamping units are fixedly arranged on the rotating plates, each clamping unit comprises an air cylinder which is horizontally fixedly arranged on the rotating plate, the front ends of piston rods of the air cylinders are fixedly provided with strip-shaped plates, the strip-shaped plates of the two clamping units are fixedly provided with a plurality of electric clamping jaws, and the strip-shaped plates of the two clamping units are distributed in an L shape.

Description

Seat skeleton upset welding mechanism

Technical Field

The utility model relates to the field of automobile manufacturing equipment, in particular to a seat framework overturning welding mechanism.

Background

The automobile seat framework generally comprises a sitting frame and a back frame, wherein the sitting frame and the back frame are horizontally arranged, the back frame is connected with the sitting frame through a connecting piece, the angle of the back frame can be adjusted by the connecting piece, so that the riding comfort level is changed, the sitting frame, the back frame and the connecting piece are generally formed by welding basic pipe fittings, the primary positioning is performed in a spot welding mode, the primary positioning is performed in a seat framework primary shape, then the primary positioning is performed through a machine, the seat framework is thoroughly formed, and the seat framework is required to be overturned due to the fact that the welding positions are more in a welding process, so that a welding gun easily stretches into a welding zone.

Patent number CN216503181U discloses a seat skeleton upset welding mechanism, this patent is fixed the seat skeleton on the L shape fixed plate rather than laminating, realize the upset to the skeleton through rotating the fixed plate, in order to satisfy the welding demand, but the inventor found that this scheme still has certain drawback, this kind of mode that leans on a fixed plate completely with the skeleton, can only make the welder weld the skeleton front relatively easily, but the back of skeleton and the position that is close to the grip point produce the interference to the rifle easily, lead to the welder unable to reach the welding point of all directions of seat skeleton, the limited full range of accessibility is welded.

Disclosure of Invention

In view of the foregoing, it is an object of one or more embodiments of the present disclosure to provide a seat frame overturning welding mechanism, which solves any one of the above-mentioned problems in the prior art.

Based on the above-mentioned purpose, one or more embodiments of this specification provide a seat skeleton upset welding mechanism, which comprises a base, the both ends of base are fixed with the support, the upper end of support is provided with the pivot of swivelling joint, two the opposite end symmetry of pivot is provided with clamping assembly, still be fixed with the motor on the support, the output shaft and the pivot fixed connection of motor, clamping assembly is including fixing the commentaries on classics board at the pivot tip, be fixed with two clamping units on the commentaries on classics board, the clamping unit includes the cylinder of level fixation on the commentaries on classics board, the piston rod front end of cylinder is fixed with the strip, be fixed with a plurality of electronic clamping jaws that distribute along strip length direction on the strip, two the strip of clamping unit is L shape and distributes.

Optionally, electronic clamping jaw is electronic two parallel fingers clamping jaw, electronic clamping jaw has two parallel arrangement's clamping jaw, one of them the bar hole has been seted up on the clamping jaw, wear to be equipped with the screw rod in the bar hole, should the grip surface of clamping jaw is provided with two briquetting, the briquetting is the round platform shape structure of falling, one of them briquetting with clamping jaw fixed connection, another briquetting and the tip fixed connection of screw rod, this the up end of clamping jaw distributes along bar hole direction has a plurality of draw-in grooves, the upper portion cover of screw rod is equipped with the clamp plate, the bottom of clamp plate is provided with the lug with draw-in groove complex, the upper end of clamp plate is provided with the lock nut of cover on the screw rod is established to the cover, lock nut and screw rod threaded connection.

Optionally, the clamping surfaces of the two clamping jaws and the surface of the pressing block are covered with rubber.

Optionally, the afterbody of cylinder is fixed with the extension board, be fixed with the fixing base on the extension board, be fixed with the turning block of being connected with fixing base damping rotation on the extension board, wear to be equipped with the bolt on the fixing base, be provided with on the turning block with bolt complex slot.

Optionally, be fixed with the slide rail on the base, the bottom of support is fixed with the slider, the slider erects on the slide rail and rather than sliding connection, a plurality of jacks along its length direction equipartition have been seted up on the slide rail, vertically wear to be equipped with the fixed pin on the slider, in the fixed pin inserts one of them jack.

Optionally, the jack of slide rail both ends tip is embedded to be provided with the anticreep round pin.

According to the overturning welding mechanism provided by the utility model, the two sides of the seat framework are fixed through the four clamping units, so that the middle area of the seat framework can be free from shielding, the clamping units are away from the seat framework one by one to enable the two sides of the seat framework and the back frame to sequentially generate avoidance spaces, and the seat framework is overturned by being matched with the motor to drive the rotating shaft to rotate, so that the welding gun can carry out omnibearing welding on the two sides and the middle of the seat framework, the accessibility of the welding gun is improved, and the welding efficiency and the welding quality are improved.

Drawings

For a clearer description of one or more embodiments of the present description or of the solutions of the prior art, the drawings that are necessary for the description of the embodiments or of the prior art will be briefly described, it being apparent that the drawings in the description below are only one or more embodiments of the present description, from which other drawings can be obtained, without inventive effort, for a person skilled in the art.

FIG. 1 is a schematic diagram of the front structure of a flip welding mechanism of the present utility model;

FIG. 2 is a schematic side view of a clamping assembly of the present utility model;

FIG. 3 is a schematic front view of the motorized clasps of the present utility model;

FIG. 4 is a schematic perspective view of an electrically operated jaw according to the present utility model;

FIG. 5 is an enlarged schematic view of the structure of FIG. 1A;

fig. 6 is a schematic top view of the slide rail and other components of the present utility model.

1, a base; 2. a slide rail; 3. anti-drop pins; 4. a slide block; 5. a fixing pin; 6. a support; 7. a motor; 8. an electric clamping jaw; 9. a rotating plate; 10. a support plate; 11. a cylinder; 12. a strip-shaped plate; 13. a rotating shaft; 14. a fixing seat; 15. a plug pin; 16. a rotating block; 17. a jack; 18. a slot; 81. a clamping groove; 82. a bar-shaped hole; 83. a pressing plate; 84. a lock nut; 85. a screw; 86. briquetting; 87. rubber leather.

Detailed Description

The present utility model will be further described in detail below with reference to specific embodiments and with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present utility model should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present disclosure pertains. The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Based on the above purpose, the utility model provides a seat framework overturning welding mechanism, which comprises a base 1, wherein two ends of the base 1 are fixedly provided with a support 6, the upper ends of the support 6 are provided with rotating shafts 13 which are in rotating connection, opposite ends of the two rotating shafts 13 are symmetrically provided with clamping assemblies, the support 6 is fixedly provided with a motor 7, an output shaft of the motor 7 is fixedly connected with the rotating shafts 13, the clamping assemblies comprise rotating plates 9 which are fixed at the end parts of the rotating shafts 13, two clamping units are fixed on the rotating plates 9, each clamping unit comprises a cylinder 11 which is horizontally fixed on the rotating plates 9, the front ends of piston rods of the cylinders 11 are fixedly provided with strip-shaped plates 12, a plurality of electric clamping jaws 8 which are distributed along the length direction of the strip-shaped plates 12 are fixed on the strip-shaped plates 12, and the strip-shaped plates 12 of the two clamping units are distributed in an L shape.

As shown in fig. 1 to 6, the utility model provides a seat frame overturning welding mechanism, which comprises a base 1, two ends of the base 1 are fixedly provided with a support 6, the upper ends of the two supports 6 are provided with rotating connecting rotating shafts 13, the two rotating shafts 13 are coaxially arranged, opposite ends of the two rotating shafts 13 are symmetrically provided with clamping assemblies, a motor 7 is also fixed on the support 6, the motor 7 is fixedly connected with the support 6 in a bolt riveting way, an output shaft of the motor 7 is fixedly connected with the rotating shafts 13 through a coupling, the clamping assemblies comprise rotating plates 9 arranged at the end parts of the rotating shafts 13, the rotating plates 9 are vertically arranged, the rotating plates 9 are fixedly connected with the end parts of the rotating shafts 13 in a welding or bolt riveting way, two clamping units are arranged on the rotating plates 9, each clamping unit comprises a horizontally fixed cylinder 11, the front end of a piston rod of the cylinder 11 is fixedly provided with a strip-shaped plate 12, the strip-shaped plate 12 is of a strip-shaped structure, the strip-shaped plate 12 is fixedly provided with a plurality of electric clamping jaws 8, the electric clamping jaws 8 are distributed along the length direction of the strip-shaped plate 12, the strip-shaped plates 12 of the two clamping units are distributed in an L shape, the seat framework mainly comprises a seat frame and a back frame, clamping assemblies at two ends of the mechanism are respectively used for clamping two sides of the seat framework, furthermore, the distribution directions of the electric clamping jaws 8 on the two clamping units are different, one of the electric clamping jaws 8 on the two clamping units is used for clamping two sides of the seat frame, the other electric clamping jaw 8 on the other clamping unit is used for clamping two sides of the back frame, when the seat framework is welded, the seat frame and the back frame of the seat framework are adjusted to be in a vertical state, the distribution straight lines of the electric clamping jaws 8 on the two clamping units are respectively leveled with the seat frame and the back frame, then piston rods of the control cylinder 11 extend, the electric clamping jaw 8 is pushed to be close to two sides of the seat frame, the electric clamping jaw 8 on one clamping unit stretches to two side edges of the seat frame, then the electric clamping jaw 8 is electrified to enable the clamping jaw to be meshed, one side of the seat frame is further clamped and fixed, then the electric clamping jaw 8 is electrified to enable the clamping jaw to be meshed, then the clamping jaw 8 is further clamped and fixed to one side of the back frame, clamping assemblies at two ends keep synchronous action, finally the clamping assemblies are clamped and fixed respectively from the two side edges of the back frame and the two side edges of the seat frame, automatic welding is carried out by a robot, the rotating shaft 13 is driven to rotate by the motor 7 to drive the clamping assemblies to rotate, thus the seat frame is integrally overturned, the robot stretches into a welding gun from different angles conveniently, the clamping position of the electric clamping jaw 8 is the two sides of the seat frame, so that the welding gun can weld the middle part of the seat frame at any angle, when the two side edges of the seat frame are required to be welded, the piston rods of the cylinders 11 of the clamping units can be alternately controlled to retract, for example, when one side edge of the seat frame is required to be welded, the cylinders 11 on the side of the seat frame are controlled to retract, the electric clamping jaws 8 are separated from the side edge of the seat frame, the clamping units stop clamping and fixing the side edge of the seat frame, at the moment, the three clamping units still respectively clamp and fix the two sides of the back frame and the other side of the seat frame, so that the seat frame can still be clamped and fixed, after the piston rods of the cylinders 11 retract, the electric clamping jaws 8 on the clamping units are separated from the edge of the seat frame, so that an avoidance space can be generated, the welding gun can extend into the side edge of the seat frame from different directions, and the omnibearing welding of the welding gun is convenient, with reference to this step, can carry out the omnidirectional welding to the both sides of back of body frame and the opposite side of sitting frame in proper order, four clamping unit altogether in this mechanism both ends, after welding to seat skeleton middle part, can withdraw a clamping unit in proper order to weld the edge of seat skeleton, because the welding operation can not exert external force to the seat skeleton, consequently three clamping units can keep enough clamping force to the seat skeleton.

In summary, according to the turnover welding mechanism provided by the utility model, the two sides of the seat framework are fixed through the four clamping units, so that the middle area of the seat framework can be free from shielding, the two sides of the seat framework and the back frame are sequentially provided with the avoidance spaces by keeping the clamping units away from the seat framework one by one, the seat framework is turned by driving the rotating shaft 13 to rotate in cooperation with the motor 7, the two sides and the middle of the seat framework can be welded in all directions by the welding gun, and the accessibility of the welding gun is improved, so that the welding efficiency and the welding quality are improved.

In some alternative embodiments, the electric clamping jaw 8 is an electric parallel two-finger clamping jaw, the electric clamping jaw 8 is provided with two clamping jaws arranged in parallel, one clamping jaw is provided with a bar-shaped hole 82, a screw rod 85 is arranged in the bar-shaped hole 82 in a penetrating manner, two pressing blocks 86 are arranged on the clamping surface of the clamping jaw, each pressing block 86 is of an inverted circular truncated cone-shaped structure, one pressing block 86 is fixedly connected with the clamping jaw, the other pressing block 86 is fixedly connected with the end part of the screw rod 85, a plurality of clamping grooves 81 are distributed on the upper end surface of the clamping jaw along the direction of the bar-shaped hole 82, a pressing plate 83 is sleeved on the upper portion of the screw rod 85, a bump matched with the clamping groove 81 is arranged at the bottom of the pressing plate 83, a locking nut 84 sleeved on the screw rod 85 is arranged at the upper end of the pressing plate 83, and the locking nut 84 is in threaded connection with the screw rod 85.

As shown in fig. 3-4, the electric clamping jaw 8 adopted in the mechanism is an electric parallel two-finger clamping jaw, and is provided with two clamping jaws which are arranged in parallel, when in operation, the electric clamping jaw 8 drives the two clamping jaws to mutually approach or separate from each other so as to realize the current clamping and releasing, one clamping jaw is provided with a penetrating bar-shaped hole 82, the inner side of the bar-shaped hole 82 is vertically penetrated with a screw rod 85, the lower end of the screw rod 85 extends between the two clamping jaws, the upper end of the screw rod extends above the clamping jaw, the clamping surface of the clamping jaw is provided with two pressing blocks 86, the pressing blocks 86 are in an inverted circular truncated cone shape, one clamping jaw is fixedly connected with the other clamping jaw, the other clamping jaw is fixedly connected with the lower end of the screw rod 85, a plurality of clamping grooves 81 arranged along the length direction of the bar-shaped hole 82 are distributed on the upper end of the clamping jaw, the upper end of the screw rod 85 is sleeved with a pressing plate 83, the bottom of the pressing plate 83 is provided with a bump matched with the clamping groove 81, the screw rod 85 is also provided with a locking nut 84 in threaded connection, the pressing plate 83 can be locked by rotating the locking nut 84, thus pressing blocks 86 at the lower end of the screw rod 85 can be fixed, one of the two pressing blocks 86 is fixed, the other one is adjustable, during adjustment, the locking nut 84 is rotated to ensure that the pressing plate 83 is not pressed any more, then the screw rod 85 is moved to be close to or far away from the other pressing block 86, after distance adjustment is completed, the bottom bump of the pressing plate 83 is pressed into the clamping groove 81, then the locking nut 84 is rotated to lock the pressing plate 83, the pressing block 86 at the bottom of the screw rod 85 is locked, the bump at the bottom of the pressing plate 83 and the clamping groove 81 can avoid the locking pressing block 86 from shifting, two sides of the seat frame are of opposite structures, two clamping faces of the two clamping jaws are planes, the other clamping face is a plane plus the inclined planes of the two pressing blocks 86, the seat framework is further locked through the inclined planes of the two pressing blocks 86, the seat framework is prevented from shifting along the length direction of the clamping jaw in the clamping process, and the distance between the other two pressing blocks 86 is adjustable, so that the clamping position of the seat framework can be conveniently adjusted.

In some alternative embodiments, the clamping surfaces of the two clamping jaws and the surface of the press block 86 are covered with rubber skin 87.

By adding the rubber 87, the clamping jaw and the pressing block 86 can avoid scratching or indentation on the surface of the seat framework due to overlarge force when being contacted with the seat framework.

In some alternative embodiments, the tail of the air cylinder 11 is fixed with a support plate 10, a fixed seat 14 is fixed on the rotating plate 9, a rotating block 16 connected with the fixed seat 14 in a damping rotation manner is fixed on the support plate 10, a bolt 15 is arranged on the fixed seat 14 in a penetrating manner, and a slot 18 matched with the bolt 15 is arranged on the rotating block 16.

When the seat framework is normally clamped, the bolt 15 is inserted into the slot 18, the rotating block 16 can not rotate, the air cylinder 11 is fixedly connected with the rotating plate 9, when the clamping units are required to be away from the side edge of the seat framework one by one, the piston rod of the air cylinder 11 of the clamping unit is controlled to retract, the electric clamping jaw 8 stops clamping the seat framework and retreats a certain distance, then the bolt 15 is pulled out, the rotating block 16 can rotate, the supporting plate 10 is rotated, the air cylinder 11 rotates to the position of the attaching rotating plate 9, and therefore the whole clamping unit is rotated to the position of the attaching rotating plate 9, the side edge surrounding of the seat framework is enabled to avoid more space, and the welding gun can more conveniently extend in.

In some alternative embodiments, the base 1 is fixed with a sliding rail 2, the bottom of the support 6 is fixed with a sliding block 4, the sliding block 4 is erected on the sliding rail 2 and is in sliding connection with the sliding rail 2, the sliding rail 2 is provided with a plurality of jacks 17 uniformly distributed along the length direction of the sliding rail, the sliding block 4 is vertically provided with a fixing pin 5 in a penetrating manner, and the fixing pin 5 is inserted into one of the jacks 17.

As shown in fig. 6, the sliding blocks 4 can slide on the sliding rail 2, and the distance between the two clamping components can be adjusted by adjusting the distance between the two sliding blocks 4, so that the overturning welding of seats with different specifications, such as the switching of a rear three-person seat framework and a single-person seat framework, is convenient, and the distance between the clamping components can be adjusted by inserting the fixing pins 5 into the insertion holes 17 to enable the sliding blocks 4 to be fixed quickly.

In some alternative embodiments, the anti-falling pins 3 are embedded in the insertion holes 17 at the two end parts of the sliding rail 2.

The anti-drop pins 3 are additionally arranged at the two ends of the sliding rail 2, so that the sliding block 4 can be prevented from sliding off the sliding rail 2 due to accidents, and the safety is improved.

Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the disclosure, including the claims, is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the utility model, the steps may be implemented in any order and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity.

The embodiments of the utility model are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides a seat skeleton upset welding mechanism, its characterized in that, including base (1), the both ends of base (1) are fixed with support (6), the upper end of support (6) is provided with pivot (13) of rotating the connection, two the opposite end symmetry of pivot (13) is provided with clamping assembly, still be fixed with motor (7) on support (6), the output shaft and the pivot (13) fixed connection of motor (7), clamping assembly is including fixing rotating plate (9) at pivot (13) tip, be fixed with two clamping units on rotating plate (9), the cylinder (11) of clamping unit on rotating plate (9) including the level is fixed with strip shaped plate (12) in the piston rod front end of cylinder (11), be fixed with a plurality of electronic clamping jaw (8) of following strip shaped plate (12) length direction distribution on strip shaped plate (12), two clamping unit's strip shaped plate (12) are L shape and distribute.

2. The seat framework overturning welding mechanism according to claim 1, characterized in that the electric clamping jaw (8) is an electric parallel two-finger clamping jaw, the electric clamping jaw (8) is provided with two clamping jaws arranged in parallel, one clamping jaw is provided with a strip-shaped hole (82), a screw rod (85) is arranged in the strip-shaped hole (82) in a penetrating mode, the clamping surface of the clamping jaw is provided with two pressing blocks (86), the pressing blocks (86) are of an inverted truncated cone-shaped structure, one pressing block (86) is fixedly connected with the clamping jaw, the other pressing block (86) is fixedly connected with the end portion of the screw rod (85), a plurality of clamping grooves (81) are distributed on the upper end face of the clamping jaw along the direction of the strip-shaped hole (82), a pressing plate (83) is sleeved on the upper portion of the screw rod (85), a protruding block matched with the clamping groove (81) is arranged at the bottom of the pressing plate (83), a locking nut (84) sleeved on the screw rod (85) is arranged at the upper end of the pressing plate (83), and the locking nut (84) is in threaded connection with the screw rod (85).

3. A seat frame flip welding mechanism according to claim 2, characterized in that the surfaces of the clamping faces of the two clamping jaws and the pressing block (86) are covered with rubber skin (87).

4. A seat frame overturning welding mechanism according to claim 3, characterized in that the tail part of the air cylinder (11) is fixedly provided with a support plate (10), the rotating plate (9) is fixedly provided with a fixed seat (14), the support plate (10) is fixedly provided with a rotating block (16) connected with the fixed seat (14) in a damping rotation manner, the fixed seat (14) is provided with a bolt (15) in a penetrating manner, and the rotating block (16) is provided with a slot (18) matched with the bolt (15).

5. The seat framework overturning welding mechanism according to claim 1, characterized in that a sliding rail (2) is fixed on the base (1), a sliding block (4) is fixed at the bottom of the support (6), the sliding block (4) is erected on the sliding rail (2) and is connected with the sliding rail in a sliding mode, a plurality of jacks (17) uniformly distributed along the length direction of the sliding rail (2) are formed in the sliding rail (2), fixing pins (5) vertically penetrate through the sliding block (4), and the fixing pins (5) are inserted into one of the jacks (17).

6. The seat framework overturning welding mechanism according to claim 5, wherein anti-falling pins (3) are embedded in insertion holes (17) at two end parts of the sliding rail (2).