CN108436335B

CN108436335B - Seat support welding production line

Info

Publication number: CN108436335B
Application number: CN201810328945.4A
Authority: CN
Inventors: 何涛
Original assignee: Wenzhou Polytechnic
Current assignee: Rizhao Jinhui Technology Information Consulting Co ltd
Priority date: 2018-04-12
Filing date: 2018-04-12
Publication date: 2019-12-10
Anticipated expiration: 2038-04-12
Also published as: CN108436335A

Abstract

The invention discloses a seat support welding production line, which is characterized in that a welding gun adjusting mechanism, a conveying mechanism and an adjusting base are arranged to convey a clamping mechanism, the clamping mechanism is distributed to complete fixing, welding and blanking of tubular parts in a plurality of stations, the adjusting base supports and rotates the clamping mechanism, the welding gun adjusting mechanism is used for debugging and accommodating a welding gun, so that a worker can complete welding in situ conveniently, and the efficiency is improved; the clamping mechanism is provided with a plurality of groups of track structures and is matched with a plurality of groups of clamps to position tubular pieces with different specifications and sizes, and the clamps adopt a debugging structure to meet the positioning requirements of different thick and thin tubular pieces; the production efficiency is integrally improved, and the production management is convenient.

Description

Seat support welding production line

Technical Field

The invention relates to the field of product processing, in particular to a semi-automatic production line for welding metal seats.

Background

In the life of people, the used seats have various styles, wherein the seats formed by welding metal tubular materials are used by more people, have firm structures and can be designed and welded into different shapes and styles. In the prior art, a plurality of tubular parts of a metal seat are matched to design a clamp group which is correspondingly arranged, each clamp in the clamp group is used for fixing the respective tubular part, then welding personnel welds the welding positions between the tubular parts, after the welding is completed, the clamps are loosened to take down the tubular part which is welded into a whole and forms a plane, and a chair back or a chair seat of the seat is preliminarily processed. However, the original clamp has no adjustability, and a clamp group is correspondingly manufactured on a chair back or chair seat with one specification and size, so that the cost is high; welding personnel need at first place corresponding tubulose and fixed, then walk around the welding that anchor clamps group carried out each welding position, lift off after having welded, holistic work efficiency is low and make mistakes easily, causes the confusion of welding environment, is difficult for guaranteeing the welded quality.

disclosure of Invention

the invention aims to overcome the defects of the prior art and provide a welding production line which is convenient for workers to perform work division cooperation and efficient welding work and can adapt to positioning of tubular parts of different specifications to weld structures such as seat backs or seat surfaces.

The invention adopts the following technical scheme: a seat support welding production line comprises a clamping mechanism, a welding gun adjusting mechanism, a conveying mechanism and an adjusting base, wherein the conveying mechanism comprises two conveying belts which are arranged at intervals, the two conveying belts are distributed on the front side and the rear side of the adjusting base and are higher than the adjusting base, the welding gun adjusting mechanism is located above the adjusting base, and the clamping mechanism is placed on the conveying belts to convey and stays above the adjusting base;

The adjusting base comprises a placing plate, a lifting cylinder and a base body, a rotating gear is arranged on the base body, the lifting cylinder is arranged on the rotating gear, a pushing cylinder is arranged on the side edge of the base body, the pushing cylinder is externally connected with a pushing rack and meshed with the rotating gear, the placing plate is arranged at the upper end of the lifting cylinder, and when the clamping mechanism is positioned above the adjusting base, the lifting cylinder rises and is supported by the placing plate, the clamping mechanism leaves the conveying belt and is positioned; when the pushing cylinder works, the clamping mechanism is controlled to rotate;

The welding gun adjusting mechanism comprises a vertical frame and an adjusting frame, the adjusting frame can be movably arranged on the vertical frame up and down, and a welding gun is arranged on the adjusting frame;

The clamping mechanism comprises a main welding seat, the main welding seat comprises a plurality of longitudinal rails which are arranged in parallel, a plurality of secondary adjusting rails are arranged on the longitudinal rails in a sliding manner, the secondary adjusting rails and the rails of the longitudinal rails are arranged vertically, a transverse rod clamp is arranged on the secondary adjusting rails in a sliding manner, the transverse rod clamp comprises a first adjusting seat and a first clamp body, the first adjusting seat comprises a fixed block and a sliding block, the fixed block is arranged on the secondary adjusting rails in a sliding manner, the sliding block and the fixed block can be arranged in a vertically movable manner through a longitudinally arranged guide rail structure, a limiting debugging assembly is arranged on the sliding block and the fixed block, the height of the sliding block is debugged by locking or unlocking the limiting debugging assembly, a V-shaped groove is arranged on the upper surface of the sliding block, the first clamp body comprises a first pressing block and a lever assembly, the lever assembly comprises a base, a first rotating arm, a second rotating arm and a handle, the base is arranged on the fixed block, one, one end of the handle is respectively hinged with one end of the first rotating arm opposite to the base and one end of the second rotating arm opposite to the base, and a first pressing block is arranged at one end of the first rotating arm opposite to the base; when the handle is lifted, the handle drives the first rotating arm and the second rotating arm to rotate in the positive direction, and the first pressing block on the first rotating arm is lifted; when the handle is pressed down, the handle drives the first rotating arm and the second rotating arm to rotate reversely, and the first pressing block on the first rotating arm descends; when the handle is pressed down to the right position, the hinge point of the handle and the first rotating arm is positioned right above the hinge point of the first rotating arm and the base; the first rotating arm drives the first pressing block to be far away from and close to the V-shaped groove, so that the seat cross rod is limited and accommodated in the V-shaped groove.

As an improvement, a waist-shaped hole is formed in the placing plate, a cylinder corresponding to the waist-shaped hole is arranged on the lower surface of the main welding seat, and the length direction of the waist-shaped hole is consistent with the conveying direction of the conveying belt; the side of conveyer belt is provided with the sensor that targets in place, and the position that should target in place the sensor corresponds with the position of adjusting the base, triggers the sensor that targets in place when fixture carries to adjusting the base top on the conveyer belt, and sensor feedback signal that targets in place stops the conveyer belt, and the cylinder stops in the top in waist shape hole simultaneously.

As an improvement, the base body is also provided with a plurality of supporting ribs which are uniformly arranged in the circumferential direction and supported on the lower surface of the placing plate.

As an improvement, spacing debugging subassembly is including setting up the rack on the sliding block and setting up the gear on the fixed block, rack and sliding block and fixed block on guide rail structure parallel arrangement, gear and rack toothing, be provided with the debugging piece that is used for locking or removes the locking to the gear on the fixed block, debugging piece rear end sets up elastic component and pull rod, debugging piece and elastic component are spacing in the mounting hole on the fixed block, the pull rod deviates from the one end of debugging piece and stretches out outside the fixed block, the elastic component cover is located on the pull rod, make the debugging piece keep away from the gear when the pulling pull rod and remove locking and compression elastic component, debugging piece is supported to the gear by the restoring force of elastic component and is locked when releasing the pull rod.

as an improvement, the debugging block is integrally T-shaped and comprises a limiting part and an extending part which are mutually and vertically connected, the limiting part is accommodated in the mounting hole and is abutted against the side wall of the mounting hole, the extending part extends out of the mounting hole to the gear, and the end part of the extending part is provided with a clamping groove matched with the gear of the gear; the debugging block and the rack are respectively positioned at two sides of the gear; and the side edge of the rack is provided with an indication scale.

As an improvement, the clamping mechanism further comprises an auxiliary welding seat, the auxiliary welding seat is arranged on a longitudinal rail on the outer side, the auxiliary welding seat is perpendicular to the rails of the longitudinal rail, an inclined rod clamp and an upper rod clamp are arranged on the auxiliary welding seat in a sliding manner, and the upper rod clamp is provided with a seat upper rod which has the same structure as the transverse rod clamp and is used for limiting the position of the upper rod clamp; the down tube anchor clamps include that the second adjusts seat and second clamp, the second is adjusted the seat and is included horizontal piece and riser, the horizontal piece can slide and set up on vice welded seat, but horizontal piece and riser are through the setting of the horizontal activity of the guide rail structure of horizontal setting, the slip direction of riser and horizontal piece is mutually perpendicular, the second clamp sets up on the riser, riser upper portion is provided with the chute, the riser sets up two sets ofly on the horizontal piece, second clamp and chute on two sets of risers are the mirror symmetry and set up, the tank bottom of chute is mobilizable support debugging subassembly, debug the inclination of chute tank bottom by supporting the subassembly activity, the second clamp has the structure the same with first clamp and is used for spacing the seat down tube that holds in the chute.

As an improvement, the support debugging subassembly includes backup pad, connecting rod, slider and fixture block, and the one end of backup pad articulates in chute one end, and connecting rod one end articulates in the rear portion of backup pad, and the connecting rod other end articulates on the slider, and the slider can be slided set up in the spout on the riser, and the bottom of spout is provided with the slot of even setting along its length direction, and the fixture block carries on spacingly through spout and card income slot to the slider.

As an improvement, first briquetting includes elasticity pressure head, screw thread post, metal gasket and nut, and the one end of first rocking arm has the bar hole, and the screw thread post passes the bar hole to set up the metal gasket at its both ends and press and fix by the nut is screwed behind the bar hole both sides, the lower extreme of screw thread post sets up the elasticity pressure head.

as an improvement, a vertical shaft, a chain wheel and a weight are arranged in a cavity of the vertical frame, a shaft sleeve is arranged on the adjusting frame, the shaft sleeve can be sleeved on the vertical shaft in a vertically movable mode, the shaft sleeve is connected with the chain, the weight is hung on the other side of the chain after the chain bypasses the chain wheel, the adjusting frame is kept balanced by the weight at different height positions, and the adjusting frame is limited through a bolt structure on the vertical frame and the adjusting frame.

As an improvement, the adjusting bracket comprises a transverse bracket and a sliding frame, two ends of the transverse bracket are respectively connected with a shaft sleeve, the transverse bracket is provided with an installation rail located on two sides and a wheel rail located on the upper surface along the length direction of the transverse bracket, the installation rail and the wheel rail are both concave in a grooving structure, a lower roller and a side roller are arranged on the sliding frame, the side roller is arranged in the installation rail through the end part, the lower roller is supported in the wheel rail, and a welding gun is placed on the upper part of the sliding frame.

The invention has the beneficial effects that: through the design of each mechanism, the staff can divide into the worker cooperation, carry fixture by conveying mechanism, the staff can divide into three station, the fixture that is located first station department places the tubular piece and fixes a position by the staff, the fixture that arrives second station department is become an organic whole by staff welding the tubular piece that has already been fixed a position, the fixture that arrives third station department is unloaded the tubular piece that becomes an organic whole by the staff, promptly for the structure such as seat back of the chair or seat that has processed. The division of labor is refined in the three positions, the production efficiency of workers can be improved, and the management is convenient.

the second station is used as a welding station, a welding gun adjusting mechanism and an adjusting base are arranged, the adjusting base can enable the clamping mechanism to be separated from the conveying mechanism and support the conveying mechanism with a good structure, the clamping mechanism is stable and is used for welding workers to perform welding work, the adjusting base can drive the clamping mechanism to rotate, the welding workers do not need to walk around the clamping mechanism, and the welding workers can be easily welded to the whole welding position in situ. The welding gun adjusting mechanism is used for arranging the welding gun above the welding personnel, so that the management of the welding gun is facilitated, the complexity of ground workpieces is reduced, the neatness of the working environment is kept, and the welding gun is arranged to be capable of being adjusted in a lifting mode to adapt to the processing of different heights and adapt to the use habits of different welding personnel.

The setting of the concrete structure of fixture, like the controllability of vertical rail and time regulation rail, the position of the debugging horizontal pole anchor clamps that can be fully free to satisfy the location needs of the back of the chair of different specifications size and seat formula tubulose spare, horizontal pole anchor clamps adopt the design correspondence of adjustable to satisfy the location demand of different thickness tubulose spares, the concrete structure of clamp is favorable to pressing from both sides tight tubulose spare, the location is firm in whole transport, and convenient to detach lifts off the good tubulose body of processing, machining efficiency is improved.

Drawings

FIG. 1 is a schematic front view of a welding line of the present invention.

FIG. 2 is a side schematic view of the welding line of the present invention.

Fig. 3 is a schematic perspective view of the adjusting base of the present invention.

Fig. 4 is a schematic perspective view of the clamping mechanism of the present invention.

Fig. 5 is an enlarged view of the structure at M in fig. 4.

Fig. 6 is an enlarged view of the structure at N in fig. 4.

FIG. 7 is a schematic view, partially in section, of a cross-bar clamp of the present invention in a vertical configuration.

Fig. 8 is a partially sectional view showing a structure of a diagonal bar clamp and an upper bar clamp according to the present invention as seen from the front.

Detailed Description

The following detailed description of specific embodiments of the invention refers to the accompanying drawings.

Referring to fig. 1-8, a seat support welding line according to an embodiment of the present invention is shown. The welding gun adjusting device comprises a clamping mechanism a, a welding gun adjusting mechanism b, a conveying mechanism c and an adjusting base d, wherein the conveying mechanism c comprises two conveying belts c1 which are arranged at intervals, the two conveying belts c1 are distributed on the front side and the rear side of the adjusting base d and are higher than the adjusting base d, the welding gun adjusting mechanism b is located above the adjusting base d, and the clamping mechanism a is placed on the conveying belt c1 to convey and stays above the adjusting base d;

The adjusting base d comprises a placing plate d1, a lifting cylinder d2 and a base body d3, a rotating gear d4 is arranged on the base body d3, a lifting cylinder d2 is arranged on the rotating gear d4, a pushing cylinder d5 is arranged on the side edge of the base body d3, a pushing rack d6 connected with the pushing cylinder d5 is externally meshed with the rotating gear d4, a placing plate d1 is arranged at the upper end of the lifting cylinder d2, and when the clamping mechanism a is located above the adjusting base d, the lifting cylinder d2 is lifted, and the placing plate d1 supports the clamping mechanism a to leave the conveying belt c1 and is located; when the pushing cylinder d5 works, the clamping mechanism a is controlled to rotate;

The welding gun adjusting mechanism b comprises a vertical frame b1 and an adjusting frame b2, wherein the adjusting frame b2 is arranged on the vertical frame b1 in a vertically movable mode, and a welding gun b3 is arranged on the adjusting frame b 2;

The clamping mechanism a comprises a main welding seat a1, the main welding seat a1 comprises a plurality of longitudinal rails a12 arranged in parallel, a plurality of secondary adjusting rails a13 are arranged on the longitudinal rails a12 in a sliding manner, the secondary adjusting rails a13 and the longitudinal rails a12 are arranged vertically, a cross bar clamp a3 is arranged on the secondary adjusting rails a13 in a sliding manner, the cross bar clamp a3 comprises a first adjusting seat a31 and a first clamp a32, the first adjusting seat a31 comprises a fixed block a311 and a sliding block a312, the fixed block a311 is arranged on the secondary adjusting rails a13 in a sliding manner, the sliding block a312 and the fixed block a311 can move up and down through a longitudinally arranged guide rail structure, a limiting debugging assembly a4 is arranged on the sliding block a312 and the fixed block a311, the height of the sliding block a is debugged by locking or unlocking of the limiting debugging assembly a4, the upper surface of the sliding block a312 is provided with a 313V-shaped grooves a312, the first clamp a32 comprises a first pressing block a321 and a lever 322 a3221, and a3221 a322 a, The first rotating arm a3222, the second rotating arm a3223 and the handle a3224, the base a3221 is disposed on the fixing block a311, one end of the first rotating arm a3222 and one end of the second rotating arm a3223 are respectively hinged to the base a3221, one end of the handle a3224 is respectively hinged to one end of the first rotating arm a3222 opposite to the base a3221 and one end of the second rotating arm a3223 opposite to the base a3221, and one end of the first rotating arm a3222 opposite to the base a3221 is provided with a first pressing block a 321; when the handle a3224 is lifted, the handle a3224 drives the first rotating arm a3222 and the second rotating arm a3223 to rotate forward, and the first pressing block a321 on the first rotating arm a3222 is lifted; when the knob a3224 is pressed down, the knob a3224 drives the first rotating arm a3222 and the second rotating arm a3223 to rotate reversely, and the first pressing piece a321 on the first rotating arm a3222 descends; when the handle a3224 is pressed down to a position, a hinge point of the handle a3224 and the first rotating arm a3222 is located right above the hinge point of the first rotating arm a3222 and the base a 3221; the first rotating arm a3222 drives the first pressing block a321 to move away from and close to the V-shaped groove a313 to limit the seat rail accommodated in the V-shaped groove a 313. The seat rails are collectively referred to hereinafter as tubes.

As shown in fig. 1, 2 and 3, when the invention is used, the conveying mechanism c is provided with two conveying belts c1 which are positioned at two sides of the adjusting base d and are slightly higher than the adjusting base d; the conveying belt c1 is longer, the middle part of the conveying belt c1 is provided with a second station where an adjusting base d and a welding gun adjusting mechanism b are located, the input end of the conveying belt c1 is a first station, and the output end of the conveying belt c1 is a third station; originally, the tubular member is placed, positioned, welded and disassembled firstly, and workers at three stations carry out division work cooperation. Before the whole production line starts to work, the worker debugs the clamping mechanism a and adjusts the positions of the rail a13 and the cross bar clamp a3 last time, and debugs the height of the V-shaped groove a313 according to the thickness of the tubular piece to match the first clamp a32 to clamp the tubular piece; after debugging, a plurality of clamping mechanisms a are used for working on a conveying belt c1, a clamping mechanism a at a first station is used for placing and positioning a tubular piece by a worker, when the clamping mechanism a reaches a second station, the operation of the conveying belt c1 is stopped, a welder operates a lifting cylinder d2 to lift a placing plate d1 to jack up the clamping mechanism a on the conveying belt c1, so that the clamping mechanism a is stably supported and positioned, the welder takes off a welding gun on a welding gun adjusting mechanism b from the upper side to weld the welding position of the tubular piece on the clamping mechanism a, after the welding position close to the welder is welded, the welder operates a pushing cylinder d5, a pushing rack d6 externally connected with a pushing cylinder d5 can drive a rotating gear d4 to rotate, so that the placing plate d1 is driven to rotate the clamping mechanism a, and the welder can weld the opposite welding position without moving the welding position, after the integral welding is completed, the pushing cylinder d5 does not need to reset, the lifting cylinder d2 can be directly lowered to enable the clamping mechanism a to return to the conveying belt c1 for continuous conveying, the rotation of the next clamping mechanism a is realized through the resetting of the pushing cylinder d5, and the integral operation time can be saved through optimization; the clamping mechanism a reaching the third station is detached by workers to form an integrated tubular part, namely a processed seat back or seat surface and other structures, and can be sent to the subsequent process for processing, and the clamping mechanism a is sent back to the first station for cycle work. Such semi-automatization production line can refine the division of labor to whole welding process, has avoided the time waste of some in-processes, can improve staff's production efficiency to can be more succinct on operational environment, the staff need not to walk on a large scale, save time and be convenient for optimization management, reduce the error rate.

The welding gun adjusting mechanism b is used for arranging the welding gun b3 above welding personnel, so that the management of the welding gun b3 is facilitated, the complexity of ground workpieces is reduced, the cleanness of a working environment is kept, and the welding gun b3 is adjusted to adapt to the processing at different heights in a lifting mode through the vertical frame b1 and the adjusting frame b2 and adapts to the use habits of different welding personnel.

The longitudinal rail a12 of the clamping mechanism a is provided with a plurality of rows of secondary adjusting rails a13 for adjusting the position of the longitudinal rail a12 in the length direction, so that the positioning requirements of different lengths of tubular pieces are met; the secondary adjusting rail a13 is arranged to be perpendicular to the longitudinal rail a12, so that the cross bar clamp a3 can adjust the position in the other vertical direction, and the position requirement of the tubular piece on the width is met; the secondary adjusting rail a13 and the longitudinal rail a12, and the cross bar clamp a3 and the secondary adjusting rail a13 can be fixed by the existing fasteners, namely, the fasteners which are in threaded rotation are arranged on the movable cross bar clamp a3 and the secondary adjusting rail a13 in a penetrating way, and the fasteners are locked when being screwed and pressed on the corresponding secondary adjusting rail a13 and the longitudinal rail a12, so that the secondary adjusting rail a13 and the longitudinal rail a12 cannot move. The lever assembly a322 of the first clamp body a32 is in the form of a multi-rod hinge, as shown in fig. 7, the first rotating arm a3222 and the second rotating arm a3223 rotate in the forward direction, which is shown as counterclockwise rotation, the first rotating arm a3222 and the second rotating arm a3223 rotate in the reverse direction, which is shown as clockwise rotation, fig. 7 shows a state that the lever assembly a322 moves to press the tubular member, in which the hinge point of the handle a3224 and the first rotating arm a3222 is located right above the hinge point of the first rotating arm a3222 and the base a3221, and structurally realizes that the first rotating arm a3222 on one side and the handle a3224 on the other side reach a balance, the counterclockwise rotation cannot continue due to the length limitation of the second rotating arm a3223, and the handle a3224 is also pressed against the second rotating arm a3223, so that the whole structure tends to a locking state. When the handle a3224 is lifted upwards by applying force, the locking can be released, so that the first rotating arm a3222 and the second rotating arm a3223 both rotate clockwise, and the first pressing piece a321 is far away from the V-shaped groove a 313. The lever assembly a322 drives the first pressing block a321 to be far away from and close to the tubular body which is limited and accommodated in the V-shaped groove a313 by the V-shaped groove a313, under the condition that the locking position of the first pressing block a321 is not changed, the relative heights of the sliding block a312 and the fixed block a311 are adjusted by the limiting adjusting assembly a4, the height position of the V-shaped groove a313 is changed, the distance between the V-shaped groove a313 and the first pressing block a321 is changed, and therefore the tubular bodies with different thicknesses can be quickly adapted. The design of above structure has improved fixture a's suitability greatly to satisfy the location needs of the back of the chair of different specifications size and the tubulose spare that the seat was overall arranged, horizontal pole anchor clamps a3 adopts the design correspondence of adjustable formula to satisfy the location needs of different thickness tubulose spares, the concrete structure of clamp is favorable to pressing from both sides tight tubulose spare, fixture a's design can greatly reduced make the extra cost that different anchor clamps brought, can adopt fixture a's debugging to realize the little tubular seat part location of structural specification difference.

As a modified specific embodiment, a waist-shaped hole d7 is formed in the placing plate d1, a cylinder a14 corresponding to the waist-shaped hole d7 is arranged on the lower surface of the main welding seat a1, and the length direction of the waist-shaped hole d7 is consistent with the conveying direction of the conveying belt c 1; the side edge of the conveying belt c1 is provided with a position sensor c2, the position of the position sensor c2 corresponds to the position of the adjusting base d, when the clamping mechanism a is conveyed above the adjusting base d on the conveying belt c1, the position sensor c2 is triggered, the position sensor c2 feeds back a signal to stop the conveying belt c1, and meanwhile, the cylinder a14 stays above the kidney-shaped hole d 7. According to the invention, through the arrangement of the in-place sensor c2, the clamping mechanism a can stop when reaching the position above the adjusting base d, the placing plate d1 provided with the kidney-shaped hole d7 is matched with the cylinder a14 on the lower surface of the main welding seat a1, the clamping mechanism a can possibly generate inertial slippage when stopping on the conveying belt c1 due to the whole weight of the clamping mechanism a, and the kidney-shaped hole d7 ensures that the front and back position stop deviation does not influence the cylinder a14 to enter the kidney-shaped hole d7 for matching. The width of the waist-shaped hole d7 is set to be slightly larger than the diameter of the cylinder a14, so that the cylinder a14 can enter the waist-shaped hole d7, the number of the waist-shaped holes d7 and the number of the cylinders a14 can be correspondingly two in one parallel position, and then multiple groups are arranged in the length direction, so that the positioning effect and the stability of force application during rotation are ensured.

as a modified embodiment, the base body d3 is further provided with a plurality of support ribs d8, and the support ribs d8 are uniformly arranged in the circumferential direction and supported on the lower surface of the placing plate d 1. The invention sets up the brace d8 on the periphery to assist in supporting the placing plate d1 on the basis of the lifting cylinder d2, so that the placing plate d1 is supported and kept stable in the reset state.

as a modified embodiment, the position-limiting adjustment assembly a4 includes a rack a41 disposed on the sliding block a312 and a gear a42 disposed on the fixed block a311, the rack a41 is disposed parallel to the sliding block a312 and a guide rail structure on the fixed block a311, the gear a42 is engaged with the rack a41, the fixed block a311 is provided with an adjustment block a43 for locking or unlocking the gear a42, the rear end of the adjustment block a43 is provided with an elastic member a44 and a pull rod a45, the adjustment block a43 and the elastic member a44 are limited in a mounting hole a3111 on the fixed block a311, one end of the pull rod a45, which is away from the adjustment block a43, extends out of the fixed block a311, the elastic member a44 is sleeved on the pull rod a45, when the pull rod a45 is pulled, the adjustment block a43 is away from the gear a42 to unlock and compress the elastic member a44, and when the pull rod a45 is released, the adjustment block a 36 43 is pressed against the reset force of the gear a42 a. As shown in fig. 7, the fixed block a311 and the sliding block a312 are slidably disposed by an existing guide rail structure, not shown in the figure, a matching structure of a rack a41 and a gear a42 is disposed at the middle position of the matching end of the fixed block a311 and the sliding block a312, the rack a41 can reasonably set the pitch, the pitch is set to be a standard value of 0.5mm or 1mm, the height of the adjustment can be directly obtained by correspondingly moving several pitches on the rack a41, and a worker can conveniently and rapidly adjust the height according to the diameter of the tubular member. The rack a41 and the gear a42 are positioned by being clamped by a debugging block a43 through a gear a42, the debugging block a43 is connected and driven by a pull rod a45 at the rear part, a worker pulls the pull rod a45 with one hand, the debugging block a43 is pulled away from the gear a42, the sliding block a312 is adjusted with the other hand, after the required height is reached, the pull rod a45 is removed, and the debugging block a43 can be driven by an elastic piece a44 to reset and clamp the gear a42 again. This structure manufacturing is simple, and the debugging is convenient, and the staff only need a few seconds alright accomplish the debugging, improves operating efficiency greatly, reduces the time of stopping the debugging in the production process, improves production efficiency, increases the income.

As a modified specific embodiment, the debugging block a43 is overall in a T shape, and includes a limiting portion a431 and an extending portion a432 which are vertically connected with each other, the limiting portion a431 is accommodated in the mounting hole a3111 and is abutted against the side wall of the mounting hole a3111, the extending portion a432 extends from the mounting hole a3111 to the gear a42, and the end of the extending portion a432 is provided with a slot a433 which is matched with the teeth of the gear a 42; the debugging block a43 and the rack a41 are respectively positioned at two sides of the gear a 42; the side edge of the rack a41 is provided with an indication scale. As shown in fig. 7, the cross section of the clamping groove a433 is an isosceles trapezoid matched with the teeth, the extending portion a432 extends to the gear a42 to clamp the clamping groove a433 to the gear a42, so as to accurately position the gear a42, the corresponding rack a41 can be limited at an accurate height, the cross section of the limiting portion a431 is matched with the mounting hole a3111, the adjusting block a43 is integrally limited in the mounting hole a3111, the other side of the adjusting block a43 can be well abutted against the elastic element a44, the pull rod a45 can be a column with a diameter smaller than the overall size of the limiting portion a431, and the elastic element a44, which can be a spring specifically, is sleeved on the pull rod a45, and the overall matching effect is good and simple. The scales are more intuitive to read on the basis of the rack a41, so that the use and debugging are facilitated.

As an improved specific embodiment, the clamping mechanism a further comprises a secondary welding seat a2, the secondary welding seat a2 is arranged on one longitudinal rail a12 on the outer side, the tracks of the secondary welding seat a2 and the longitudinal rail a12 are vertically arranged, an inclined rod clamp a5 and an upper rod clamp a6 are arranged on the secondary welding seat a2 in a sliding manner, and the upper rod clamp a6 has the same structure as the cross rod clamp a3 and is used for limiting the seat upper rod at the upper rod clamp a 6; the inclined rod clamp a5 comprises a second adjusting seat a51 and a second clamp body a52, the second adjusting seat a51 comprises a transverse block a511 and a vertical block a512, the transverse block a511 is slidably arranged on a secondary welding seat a2, the transverse block a511 and the vertical block a512 are horizontally movably arranged through a transversely arranged guide rail structure, the sliding directions of the vertical block a512 and the transverse block a511 are perpendicular, a second clamp body a52 is arranged on the vertical block a512, an inclined groove a513 is arranged on the upper portion of the vertical block a512, the vertical block a512 is arranged in two groups on the transverse block a511, the second clamp body a52 and the inclined groove a513 on the two groups of the vertical block a512 are symmetrically arranged, the groove bottom of the inclined groove a is a7 which can movably support the debugging assembly, the inclined angle of the groove bottom of the inclined groove a513 is movably debugged by the supporting debugging assembly a7, and the second clamp body a52 has the same structure as the first clamp body a32 and is used for limiting the inclined rod accommodated in the inclined rod a 513.

In the specific implementation process, part of the chair back or the chair seat has an arc-shaped surface, namely the chair back or the chair seat has a structure which is not on the same plane as the whole chair back or the chair seat, so that the difficulty in fixing and designing the clamp group is improved. The curved or planar configuration also creates a seat top bar and seat recliners that are distinct from the seat rails, and are collectively referred to hereinafter as tubes.

As shown in fig. 4, 6 and 8, the embodiment of the present invention further provides a secondary welding seat a2, which is provided on an outer one of the longitudinal rails a12, and when the structure of the curved or bent tubular member is present, the secondary welding seat a2 is provided, the extended curved or bent tubular member (seat diagonal) is clamped by the diagonal rod clamp a5, and the upper rod clamp a6 clamps the tubular member (seat upper rod) with the upper end crossing. The diagonal bar clamp a5 and the upper bar clamp a6 can slide back and forth to accommodate tubular members of different lengths and heights. The upper rod clamp a6 has the same structure as the cross rod clamp a3, as shown in fig. 8, and some specific parts can be arranged to be slimmer due to height change, and the corresponding adjustable distance is increased. The inclined rod clamp a5 is provided with a chute a513 with a debuggable chute bottom for adapting to the difference of the arc or bending degree of the tubular piece, the chute bottom is a movable supporting and debugging component a7, after the front and rear positions of the tubular piece are debuggable on the auxiliary welding seat a2 through a transverse block a511, the tubular piece can be accommodated into the chute a513 to be supported, the supporting and debugging component a7 is matched with the angle of the tubular piece through debugging the angle, a better supporting effect is achieved, the upper part of the supporting and debugging component is limited by a second clamp a52, and the second clamp a52 adopts the structure the same as that of the first clamp a 32. Through setting up two sets of riser blocks a512 and making the second clamp a52 and the chute a513 on it be mirror symmetry and set up, can fix a position holistic structure in the both sides of upper boom anchor clamps a6, the debugging adapts to different specifications about.

As an improved specific embodiment, the support debugging assembly a7 comprises a support plate a71, a connecting rod a72, a sliding block a73 and a clamping block a74, one end of the support plate a71 is hinged to one end of the inclined groove a513, one end of the connecting rod a72 is hinged to the rear part of the support plate a71, the other end of the connecting rod a72 is hinged to the sliding block a73, the sliding block a73 is slidably arranged in a sliding groove a5121 on the vertical block a512, the bottom of the sliding groove a5121 is provided with uniformly arranged slots a5122 along the length direction thereof, and the clamping block a74 limits the sliding block a73 by passing through the sliding groove a5121 and being clamped into the slots a 5122. As shown in fig. 8, when the specific structure of the supporting debugging component a7 is used, an inclined surface may be disposed on the vertical block a512, a sliding groove a5121 is disposed on the inclined surface, the sliding block a73 may freely slide in the sliding groove a5121, and after the clamping block a74 is clamped into the sliding groove a5121 to the insertion groove a5122 for positioning, the sliding block a73 may be supported below, so as to achieve the effect of limiting. The connecting rod a72 is connected to the supporting plate a71 from the sliding block a73, so as to form a relatively vertical rod structure, which has a better supporting effect on the supporting plate a 71. One end of the supporting plate a71 is hinged at the lower end of the chute a513, so that the position of the lower end is unchanged, and angle debugging is conveniently carried out by one fulcrum during integral debugging. The arrangement of the slot a5122 may correspond to the rotation angle of the supporting plate a71, for example, the angle of the adjacent slot a5122 is adjusted by 5 degrees, so that the angle can be quickly adjusted by accurately selecting the position.

As an improved specific embodiment, the first pressing block a321 includes an elastic pressing head a3211, a threaded column a3212, a metal gasket a3213 and a nut a3214, one end of the first rotating arm a3222 has a strip-shaped hole a3225, the threaded column a3212 passes through the strip-shaped hole a3225, the metal gasket a3213 is arranged at two ends of the threaded column a and is pressed on two sides of the strip-shaped hole a3225, and then the threaded column a3214 is screwed and fixed by the nut a3214, and the elastic pressing head a3211 is arranged at a lower end of the threaded column 3212. As shown in fig. 5 and 7, by the arrangement of the strip-shaped hole a3225, when the locking of the threaded column a3212 by the nut a3214 is released, the front and back positions of the threaded column a3212 in the strip-shaped hole a3225 can be adjusted, and the elastic pressure head a3211 at the lower end of the threaded column a3212 can be set to the optimum front and back positions as required to press tubular bodies of different specifications. Of course, in the case of adjustment by using the limit adjustment component a4, the adjustment can be performed without using a more complicated adjustment structure at the first pressing block a321, and the adjustment can be performed under the requirement of positioning the tubular body with a specific structure. On the other hand, the metal gasket a3213 at the upper and lower ends is matched with the nut a3214 at the two ends to screw and fix the threaded column a3212, so that the screw has a stable screwing state, the height of the elastic pressure head a3211 can be controlled by adjusting the position of the nut a3214 on the threaded column a3212, and the debugging mode of the clamp can be enriched on the basis of the limit debugging component a4, so that the tubular body can be positioned better, for example, when the inclined rod clamp a5 and the upper rod clamp a6 are applied, the special angle or shape of the seat upper rod and the seat inclined rod can realize better pressing and fixing effects through the specific debugging of the first pressure block a 321.

As an improved specific embodiment, a vertical shaft b11, a chain b12, a chain wheel b13 and a weight b14 are arranged in a cavity of the stand b1, a shaft sleeve b21 is arranged on the adjusting frame b2, the shaft sleeve b21 can be sleeved on the vertical shaft b11 in a vertically movable mode, a shaft sleeve b21 is connected with the chain b12, the weight b14 is hung on the other side of the chain b12 after bypassing the chain b13, the adjusting frame b2 is kept balanced by the weight b14 at different height positions and limited through a bolt structure on the stand b1 and the adjusting frame b 2. As shown in fig. 2, the stand b1 is arranged to be left and right, the adjusting bracket b2 is arranged between the stand b1, the shaft sleeve b21 on the adjusting bracket b2 is sleeved in the vertical shaft b11 to move up and down, the chain b12 winds around the chain wheel b13, and the weight b14 and the shaft sleeve b21 are respectively connected to two sides of the chain, so that the adjusting bracket b2 connected with the weight b14 and the shaft sleeve b21 is balanced, the weight b14 on the other side is matched according to the total weight of the adjusting bracket b2, the shaft sleeve b21 and other components on one side of the chain b12, the balance and the balance of the weight are kept stable, and therefore, the worker can push the adjusting bracket b2 up and down, the debugging mode is faster and easier, the efficiency is higher, the worker can adjust the height of the adjusting bracket b2 as required, pull down when using, push up when not using, or flexibly adjust. If the height of the adjusting frame b2 is required to be locked, the existing bolt structure can be adopted to fix the upright frame b1 and the adjusting frame b2, and stable use can be ensured.

as an improved embodiment, the adjusting bracket b2 comprises a transverse bracket b22 and a sliding bracket b23, wherein two ends of the transverse bracket b22 are respectively connected with a shaft sleeve b21, the transverse bracket b22 is provided with a mounting rail b221 positioned on two sides and a wheel rail b222 positioned on the upper surface along the length direction of the transverse bracket b22, the mounting rail b221 and the wheel rail b222 are both recessed into a groove structure, the sliding bracket b23 is provided with a lower roller b231 and a side roller b232, the side roller b232 is installed into the mounting rail b221 from the end part, the lower roller b231 is supported in the wheel rail b222, and a welding gun b3 is placed on the upper part of the sliding bracket b 23. As shown in fig. 1, the adjusting bracket b2 is specifically arranged as a horizontal bracket b22 and a sliding bracket b23, the worker can quickly slide the sliding bracket b23 to debug the welding gun b3 to the convenient position of the worker to weld the tubular body in the range, so that the workers with different habits of left and right hands can use the tubular body as required, the sliding bracket b23 is flexibly arranged in the wheel track b222 and the installation track b221 of the horizontal bracket b22 through the lower roller b231 and the side roller b232, the sliding bracket b23 can flexibly slide and is limited in position by the above structure, and the horizontal bracket b22 and the sliding bracket b23 are stable and integrated. The welding gun b3 is arranged on the sliding frame b23, and the circuit of the welding gun b3 can be fixed through the side vertical frame b1, so that the whole structure management is convenient.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The utility model provides a seat support welding production line which characterized in that: the welding gun adjusting mechanism comprises a clamping mechanism (a), a welding gun adjusting mechanism (b), a conveying mechanism (c) and an adjusting base (d), wherein the conveying mechanism (c) comprises two conveying belts (c 1) arranged at intervals, the two conveying belts (c 1) are distributed on the front side and the rear side of the adjusting base (d) and are higher than the adjusting base (d), the welding gun adjusting mechanism (b) is located above the adjusting base (d), and the clamping mechanism (a) is placed on the conveying belts (c 1) to convey and stays above the adjusting base (d);

The adjusting base (d) comprises a placing plate (d 1), a lifting cylinder (d 2) and a base body (d 3), a rotating gear (d 4) is arranged on the base body (d 3), a lifting cylinder (d 2) is arranged on the rotating gear (d 4), a pushing cylinder (d 5) is arranged on the side edge of the base body (d 3), the pushing cylinder (d 5) is externally connected with a pushing rack (d 6) and meshed with the rotating gear (d 4), the placing plate (d 1) is arranged at the upper end of the lifting cylinder (d 2), and when the clamping mechanism (a) is located above the adjusting base (d), the lifting cylinder (d 2) rises to support the clamping mechanism (a) to be separated from the conveying belt (c 1) through the placing plate (d 1) and is located; when the pushing cylinder (d 5) works, the clamping mechanism (a) is controlled to rotate;

The welding gun adjusting mechanism (b) comprises a vertical frame (b 1) and an adjusting frame (b 2), wherein the adjusting frame (b 2) is arranged on the vertical frame (b 1) in a vertically movable mode, and a welding gun (b 3) is arranged on the adjusting frame (b 2);

The clamping mechanism (a) comprises a main welding seat (a 1), the main welding seat (a 1) comprises a plurality of longitudinal rails (a 12) arranged in parallel, the longitudinal rails (a 12) are provided with a plurality of secondary adjusting rails (a 13) in a sliding manner, the secondary adjusting rails (a 13) and the longitudinal rails (a 12) are perpendicularly arranged, the secondary adjusting rails (a 13) are provided with cross bar clamps (a 3) in a sliding manner, the cross bar clamps (a 3) comprise a first adjusting seat (a 31) and a first clamp body (a 32), the first adjusting seat (a 31) comprises a fixed block (a 311) and a sliding block (a 312), the fixed block (a 311) is arranged on the secondary adjusting rails (a 13) in a sliding manner, the sliding block (a 312) and the fixed block (a) are arranged in a vertically movable manner through a guide rail structure, and a limit components (a 4) are arranged on the sliding block (a 311) and the fixed block (a 4), the height of the sliding block (a 312) is adjusted by locking or unlocking a limit adjusting component (a 4), a V-shaped groove (a 313) is formed in the upper surface of the sliding block (a 312), the first clamp body (a 32) comprises a first pressing block (a 321) and a lever component (a 322), the lever component (a 322) comprises a base (a 3221), a first rotating arm (a 3222), a second rotating arm (a 3223) and a handle (a 3224), the base (a 3221) is arranged on the fixing block (a 311), one ends of the first rotating arm (a 3222) and the second rotating arm (a 3223) are respectively hinged to the base (a 3221), one end of the handle (a 3224) is respectively hinged to one end of the first rotating arm (a 3222) opposite to the base (a 3221) and one end of the second rotating arm (a 3223) opposite to the base (a 3221), and the first pressing block (321) is arranged at one end of the first rotating arm (a 3222) opposite to the base (a 3221); when the handle (a 3224) is lifted, the handle (a 3224) drives the first rotating arm (a 3222) and the second rotating arm (a 3223) to rotate in the forward direction, and the first pressing block (a 321) on the first rotating arm (a 3222) is lifted; when the handle (a 3224) is pressed downwards, the handle (a 3224) drives the first rotating arm (a 3222) and the second rotating arm (a 3223) to rotate reversely, and the first pressing block (a 321) on the first rotating arm (a 3222) descends; when the handle (a 3224) is pressed down to a position, a hinge point of the handle (a 3224) and the first rotating arm (a 3222) is positioned right above the hinge point of the first rotating arm (a 3222) and the base (a 3221); the first rotating arm (a 3222) drives the first pressing block (a 321) to move away from and close to the seat cross bar which is limited and accommodated in the V-shaped groove (a 313);

The limiting debugging assembly (a 4) comprises a rack (a 41) arranged on a sliding block (a 312) and a gear (a 42) arranged on a fixed block (a 311), the rack (a 41) is arranged in parallel with a guide rail structure on the sliding block (a 312) and the fixed block (a 311), the gear (a 42) is meshed with the rack (a 41), a debugging block (a 43) used for locking or unlocking the gear (a 42) is arranged on the fixed block (a 311), an elastic piece (a 44) and a pull rod (a 45) are arranged at the rear end of the debugging block (a 43), the debugging block (a 43) and the elastic piece (686a a 8) are limited in a mounting hole (a 3111) on the fixed block (a 311), one end, deviating from the debugging block (a 43), of the pull rod (a 45) extends out of the unlocking block (a 311), the fixed block elastic piece (a 44) is sleeved on the pull rod (45 a), and the pull rod (45 a 4642) is far away from the locking block (a 44) when the gear (a 44) is pulled, when the pull rod (a 45) is released, the debugging block (a 43) is locked against the gear (a 42) by the reset force of the elastic piece (a 44).

2. a seat support welding production line according to claim 1, characterized in that: the placing plate (d 1) is provided with a waist-shaped hole (d 7), the lower surface of the main welding seat (a 1) is provided with a cylinder (a 14) corresponding to the waist-shaped hole (d 7), and the length direction of the waist-shaped hole (d 7) is consistent with the conveying direction of the conveying belt (c 1); an in-place sensor (c 2) is arranged on the side edge of the conveying belt (c 1), the position of the in-place sensor (c 2) corresponds to the position of the adjusting base (d), the in-place sensor (c 2) is triggered when the clamping mechanism (a) is conveyed to the position above the adjusting base (d) on the conveying belt (c 1), a feedback signal of the in-place sensor (c 2) enables the conveying belt (c 1) to stop, and meanwhile, the cylinder (a 14) stays above the kidney-shaped hole (d 7).

3. A seat support welding line according to claim 2, characterized in that: the base body (d 3) is further provided with a plurality of supporting ribs (d 8), and the supporting ribs (d 8) are uniformly arranged in the circumferential direction and are supported on the lower surface of the placing plate (d 1).

4. A seat support welding line according to claim 1, 2 or 3, characterized in that: the debugging block (a 43) is overall in a T shape and comprises a limiting part (a 431) and an extending part (a 432) which are vertically connected with each other, the limiting part (a 431) is accommodated in the mounting hole (a 3111) and is abutted against the side wall of the mounting hole (a 3111), the extending part (a 432) extends out of the mounting hole (a 3111) to the gear (a 42), and a clamping groove (a 433) matched with the teeth of the gear (a 42) is formed in the end part of the extending part (a 432); the debugging block (a 43) and the rack (a 41) are respectively positioned at two sides of the gear (a 42); the side edge of the rack (a 41) is provided with an indication scale.

5. A seat support welding production line according to claim 4, characterized in that: the clamping mechanism (a) further comprises an auxiliary welding seat (a 2), the auxiliary welding seat (a 2) is arranged on one longitudinal rail (a 12) on the outer side, the auxiliary welding seat (a 2) and the rail of the longitudinal rail (a 12) are vertically arranged, an inclined rod clamp (a 5) and an upper rod clamp (a 6) are arranged on the auxiliary welding seat (a 2) in a sliding mode, and the upper rod clamp (a 6) has the same structure as the transverse rod clamp (a 3) and is used for limiting the upper seat rod at the upper rod clamp (a 6); the inclined rod clamp (a 5) comprises a second adjusting seat (a 51) and a second clamp body (a 52), the second adjusting seat (a 51) comprises a transverse block (a 511) and a vertical block (a 512), the transverse block (a 511) is arranged on a secondary welding seat (a 2) in a sliding manner, the transverse block (a 511) and the vertical block (a 512) are arranged in a horizontally movable manner through a transversely arranged guide rail structure, the sliding directions of the vertical block (a 512) and the transverse block (a 511) are vertical, the second clamp body (a 52) is arranged on the vertical block (a 512), the upper part of the vertical block (a 512) is provided with an inclined groove (a 513), the vertical block (a 512) is arranged on the transverse block (a 511) in two groups, the second clamp body (a 52) and the inclined groove (a 513) on the two groups of vertical blocks (a 512) are arranged in a symmetrical manner, the inclined groove (a 513) of the inclined groove (a) is a groove bottom component (a) which can movably support the adjusting assembly (a 8678 a) and is movably arranged on the inclined groove bottom (a) of the inclined groove (a 8678), the second clamp body (a 52) has the same structure as the first clamp body (a 32) for limiting the seat diagonal rod accommodated in the diagonal groove (a 513).

6. A seat support welding production line according to claim 5, characterized in that: the supporting and debugging assembly (a 7) comprises a supporting plate (a 71), a connecting rod (a 72), a sliding block (a 73) and a clamping block (a 74), one end of the supporting plate (a 71) is hinged to one end of the inclined groove (a 513), one end of the connecting rod (a 72) is hinged to the rear portion of the supporting plate (a 71), the other end of the connecting rod (a 72) is hinged to the sliding block (a 73), the sliding block (a 73) is arranged in the sliding groove (a 5121) of the vertical block (a 512) in a sliding mode, the bottom of the sliding groove (a 5121) is provided with uniformly arranged inserting grooves (a 5122) along the length direction of the sliding groove, and the clamping block (a 74) is clamped into the inserting groove (a 5122) through the sliding groove (a 5121) to limit the sliding block (a.

7. A seat support welding line according to claim 1, 2 or 3, characterized in that: the first pressing block (a 321) comprises an elastic pressing head (a 3211), a threaded column (a 3212), a metal gasket (a 3213) and a nut (a 3214), one end of the first rotating arm (a 3222) is provided with a strip-shaped hole (a 3225), the threaded column (a 3212) penetrates through the strip-shaped hole (a 3225), the metal gasket (a 3213) is arranged at two ends of the threaded column and is pressed on two sides of the strip-shaped hole (a 3225) and then screwed and fixed by the nut (a 3214), and the elastic pressing head (a 3211) is arranged at the lower end of the threaded column (a 3212).

8. A seat support welding line according to claim 1, 2 or 3, characterized in that: the vertical shaft (b 11), the chain (b 12), the chain wheel (b 13) and the weight (b 14) are arranged in a cavity of the vertical frame (b 1), a shaft sleeve (b 21) is arranged on the adjusting frame (b 2), the shaft sleeve (b 21) can be sleeved on the vertical shaft (b 11) in a vertically movable mode, the shaft sleeve (b 21) is connected with the chain (b 12), the weight (b 14) is hung on the other side of the chain (b 12) after bypassing the chain wheel (b 13), the adjusting frame (b 2) is kept balanced by the weight (b 14) at different height positions, and the position is limited through pin structures on the vertical frame (b 1) and the adjusting frame (b 2).

9. A seat support welding line according to claim 8, characterized in that: the adjusting bracket (b 2) comprises a transverse bracket (b 22) and a sliding bracket (b 23), two ends of the transverse bracket (b 22) are respectively connected with a shaft sleeve (b 21), the transverse bracket (b 22) is provided with mounting rails (b 221) located on two sides and wheel rails (b 222) located on the upper surface along the length direction of the transverse bracket, the mounting rails (b 221) and the wheel rails (b 222) are both concave in a groove structure, the sliding bracket (b 23) is provided with lower rollers (b 231) and side rollers (b 232), the side rollers (b 232) are arranged in the mounting rails (b 221) from the end portions, the lower rollers (b 231) are supported in the wheel rails (b 222), and a welding gun (b 3) is placed on the upper portion of the sliding bracket (b 23).