阅读说明：本技术 一种梯桄焊接装置 (Ladder crossbar welding set ) 是由 顾卫星 郭余城 于 2019-09-27 设计创作，主要内容包括：一种梯桄焊接装置,包括焊接输送带和相对于焊接输送带独立脱离的焊接座；沿输送方向,焊接输送带顺次划分为用于定位装载有梯桄和梆边的焊接座的定位区域、用于将梯桄和梆边焊接为电缆桥架单元的焊接区域和用于将电缆桥架单元和焊接座分别输出的卸料区域,本装置能够实现梆边和梯桄的自动化焊接加工,加工速度快,加工效率高；大量减少了人工使用,焊接成品品质稳定；传感器与焊接进料拉件分别对待焊接件在焊接输送带上的两个方位进行定位,定位精准迅速,确保后续高效焊接；采用焊枪定点定位、待焊接元件步进式移动送料的方式进行焊接加工,进一步提高了焊接速度。(A ladder crossbar welding device comprises a welding conveyer belt and a welding seat which is separated from the welding conveyer belt independently; the device comprises a welding conveying belt, a positioning area, a welding area and a discharging area, wherein the welding conveying belt is sequentially divided into the positioning area, the welding area and the discharging area along the conveying direction, the positioning area is used for positioning the welding seat loaded with the step edge and the cut edge, the welding area is used for welding the step edge and the cut edge into a cable bridge unit, and the discharging area is used for respectively outputting the cable bridge unit and the welding seat; manual use is greatly reduced, and the quality of a welding finished product is stable; the sensor and the welding feeding pulling piece are used for respectively positioning two directions of a to-be-welded piece on the welding conveying belt, so that the positioning is accurate and rapid, and the follow-up efficient welding is ensured; the welding processing is carried out by adopting the modes of fixed-point positioning of a welding gun and stepping type moving feeding of elements to be welded, so that the welding speed is further improved.)

1. A ladder crossbar welding set which characterized in that:

comprises a welding conveyer belt (11) and a welding seat (1) which is separated independently relative to the welding conveyer belt (11);

the welding conveyor belt (11) is divided into a positioning area for positioning a welding seat (1) loaded with a crossbar (9) and a edge (8), a welding area for welding the crossbar (9) and the edge (8) into a cable bridge unit (2), and a discharging area for respectively outputting the cable bridge unit (2) and the welding seat (1) in sequence along the conveying direction, wherein:

the welding feeding pulling piece (13) is arranged corresponding to the positioning area and used for transferring the welding seat (1) to the positioning area and adjusting the position of the welding seat (1) at the left side and the right side of the positioning area relative to the welding conveying belt (11); the welding seat (1) transferred to the positioning area is in a hollow square frame shape and corresponds to the left side and the right side of a welding conveyer belt (11), the left side and the right side of the welding seat (1) are provided with side limiting parts (5) extending upwards, the conveying direction of the welding conveyer belt (11) corresponds to, the front end and the rear end of the welding seat (1) are provided with end limiting parts (6) extending upwards, the side limiting parts (5), the end limiting parts (6) and the welding seat (1) enclose a welding positioning cavity with an upward opening, the outer walls of two edge sides (8) are respectively abutted against the inner walls of the two edge sides (8), and the two ends of a plurality of ladder rollers (9) are respectively abutted against the inner walls of the two edge sides (8) and are arranged in the two edge sides;

a welding positioning sensor (12) for detecting whether the welding seat (1) reaches a set welding station is arranged corresponding to the welding area, two welding guns (10) are fixed above the welding area, and the gun openings of the welding guns (10) are arranged corresponding to the welding positions of the step edges (9) and the side edges (8) on the welding station;

a movable unloading seat (4) used for moving away from the cable bridge unit (2) and a welding seat transfer pushing piece (14) used for pushing away the welding seat (1) are arranged corresponding to the unloading area;

the controller draws piece (13), welder (10), removal unloading seat (4) through control scheme connection welding conveyer belt (11), welding feeding, and the welding seat shifts and pushes away piece (14), and the controller passes through signal line connection welding position sensor (12), and the signal of welding position sensor (12) is received to the controller, and control each part carries out following duty cycle:

the controller controls the welding feeding pulling piece (13) to be started, and the welding seat (1) loaded with the step bars (9) and the step edges (8) is transferred to a positioning area of the welding conveyer belt (11) along a set direction;

the controller controls the welding conveyer belt (11) to start, and detects and judges whether the welding seat (1) reaches a set welding station through the welding positioning sensor (12);

if the welding seat (1) reaches a set welding station, the controller controls the welding conveyer belt (11) to stop, at the moment, the two ends of the crossbar (9) at the foremost end of the welding seat (1) and the two welding parts of the two edges (8) are just aligned to the gun openings of the two welding guns (10), and the controller controls the welding guns (10) to perform welding operation;

the controller controls the welding conveyor belt (11) to be stopped after being started for a set time, at the moment, the two ends of the next step rail (9) and the two welding positions of the two edge edges (8) are just aligned to the gun openings of the two welding guns (10), the controller controls the welding guns (10) to perform welding operation, and the operation is circulated until all the step rails (9) are welded to form the cable bridge unit (2);

the controller controls the welding conveyer belt (11) to be stopped after being started for a set time, and the welding seat (1) loaded with the cable bridge unit (2) reaches a discharging area at the moment;

the controller controls the movable unloading seat (4) to take out and move away the cable bridge unit (2) from the opening at the top of the welding seat (1), and the movable unloading seat (4) resets;

the controller controls the welding seat transfer pushing piece (14) to push the welding seat (1) away from the welding conveying belt (11), and the welding seat transfer pushing piece (14) resets.

2. The ladder crossbar welding device according to claim 1, characterized in that: welding feeding pulling piece (13) and welding seat transfer pushing piece (14) are electromagnetic push-pull plates capable of being driven to move horizontally respectively, the welding seat (1) is a magnetic conductivity welding seat capable of being magnetically adsorbed, and the ladder crossbar (9) and the edge (8) are non-magnetic steel ladder crossbar, non-magnetic steel edge and/or aluminum ladder crossbar and aluminum edge respectively.

3. The ladder crossbar welding device of claim 2, wherein: the welding feeding pulling piece (13) and/or the welding seat transfer pushing piece (14) are driven by a motor, a hydraulic cylinder or a compression cylinder to translate.

4. The ladder crossbar welding device according to claim 1, characterized in that: the welding positioning sensor (12) is a photoelectric switch and/or a laser sensor.

5. The ladder crossbar welding device according to claim 1, characterized in that: the side limiting parts (5) are a plurality of limiting baffles and/or limiting stops arranged at intervals, and the end limiting parts (6) are continuously arranged limiting baffles or limiting stops.

6. The ladder crossbar welding device of claim 5, wherein: the welding seat (1) comprises a left side frame and a right side frame (3), the front end and the rear end of each side frame (3) are connected into a whole through end part limiting parts (6), and the tops of the end part limiting parts (6) are higher than the tops of the side frames (3).

7. The ladder crossbar welding device according to claim 1, characterized in that: the welding seat (1) is welded by sectional materials or fixed into a whole through bolts; the end limiting part (6) and the side limiting part (5) are limiting sectional materials arranged on the welding seat (1).

8. The ladder crossbar welding device according to claim 1, characterized in that: the limiting height of the end limiting part (6) is lower than that of the side limiting part (5).

9. The ladder crossbar welding device according to claim 1, characterized in that: the welding seat (1) enters/leaves the welding conveyer belt (11) from one side of the welding conveyer belt (11), and the initial positions of the welding feeding pulling piece (13) and the welding seat transferring pushing piece (14) are positioned on the other side of the welding conveyer belt (11).

10. The ladder crossbar welding device according to claim 1, characterized in that: the lower end of the welding gun (10) is in a shape of a splayed outside and extends into a gap between two edges (8) on a welding station.

Technical Field

The invention relates to the field of cable bridge processing, in particular to a ladder crossbar welding device of a cable bridge.

Background

The cable bridge is divided into structures such as a groove type cable bridge, a tray type cable bridge, a ladder type cable bridge, a grid bridge and the like, and is composed of a support, a supporting arm, an installation accessory and the like. Can be independently erected and also can be laid on various buildings and pipe rack supports, and has the characteristics of simple structure, attractive appearance, flexible configuration, convenient maintenance and the like.

The groove type cable bridge generally comprises side edges on two sides and a crossbar fixedly connected with the side edges on two sides and positioned between the side edges on two sides, during processing, connecting holes, threading holes and buckling holes are firstly punched on the side edges through multiple punching processes, and then the side edges are bent and formed to be welded with the crossbar to form an integrated wire groove structure.

At present, when the step edge is welded, after the relative position of the step edge and the step edge is fixed, the manual handheld welding gun is mainly relied to move, and the welding operation of the step edge and the step edge is manually completed one by one, so that the speed is low, the efficiency is low, the labor is consumed, the welding cost is high, the quality of manual welding is unstable, and the product processing quality is influenced.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a ladder crossbar welding device, which can realize automatic welding processing of a side and a ladder crossbar, and has the advantages of high processing speed, high processing efficiency, great reduction of manual use and stable quality of a welded finished product.

The invention is realized by the following technical scheme:

a ladder crossbar welding set which characterized in that:

comprises a welding conveyer belt and a welding seat which is separated independently relative to the welding conveyer belt;

along direction of delivery, the welding conveyer belt divides in order into the location area that is used for the location to load the welding seat of the ladder crossbar and the edge, is used for welding the ladder crossbar and the edge for the welding area of cable bridge unit and the region of unloading that is used for respectively exporting cable bridge unit and welding seat, wherein:

the welding feeding pulling piece is used for transferring the welding seat to the positioning area and adjusting the position of the welding seat in the positioning area relative to the left side and the right side of the welding conveying belt; the welding seat transferred to the positioning area is in a hollow square frame shape and corresponds to the left side and the right side of a welding conveyer belt, the left side and the right side of the welding seat are provided with side part limiting parts extending upwards, the conveying direction of the welding conveyer belt corresponds to, the front end and the rear end of the welding seat are provided with end part limiting parts extending upwards, the side part limiting parts, the end part limiting parts and the welding seat enclose a welding positioning cavity with an upward opening, the outer walls of two edges of the edges of;

a welding positioning sensor for detecting whether the welding seat reaches a set welding station is arranged corresponding to the welding area, two welding guns are fixed above the welding area, and gun ports of the welding guns are arranged corresponding to welding positions of the edge rails and the edge edges on the welding station;

a movable unloading seat used for moving away from the cable bridge unit is arranged corresponding to the unloading area, and a welding seat transfer pushing piece used for pushing away the welding seat is also arranged;

the controller is connected welding conveyer belt, welding feeding through control scheme and is drawn piece, welder, removal unloading seat, and the welding seat shifts and pushes away the piece, and the controller passes through signal line and connects welding position sensor, and the controller receives welding position sensor's signal, and each part of control carries out following duty cycle:

the controller controls the welding feeding pulling piece to be started, and the welding seat loaded with the step bar and the step edge is transferred to a positioning area of the welding conveyer belt along a set direction;

the controller controls the welding conveyer belt to start, and detects and judges whether the welding seat reaches a set welding station or not through the welding positioning sensor;

if the welding seat reaches a set welding station, the controller controls the welding conveyer belt to stop, at the moment, the two ends of the ladder edge at the foremost end of the welding seat and the two welding parts of the two edge edges are just aligned to the gun openings of the two welding guns, and the controller controls the welding guns to perform welding operation;

the controller controls the welding conveyor belt to be started for a set time and then stopped, at the moment, the two ends of the next step rail and the two welding positions of the two step edges are just aligned to the gun openings of two welding guns, the controller controls the welding guns to perform welding operation, and the operation is circulated until all the step rails are welded to form a cable bridge unit;

the controller controls the welding conveyer belt to be started for a set time and then stopped, and at the moment, the welding seat loaded with the cable bridge unit reaches the unloading area;

the controller controls the movable discharging seat to take out and move away the cable bridge unit from the opening at the top of the welding seat, and the movable discharging seat is reset;

the controller controls the welding seat transfer pushing piece to push the welding seat away from the welding conveying belt, and the welding seat transfer pushing piece resets.

Furthermore, the welding feeding pulling piece and the welding seat transferring pushing piece are electromagnetic push-pull plates capable of being driven to move horizontally respectively, the welding seat is a magnetic permeability welding seat capable of being magnetically adsorbed, and the ladder crossbar and the side edges are non-magnetic steel ladder crossbar, non-magnetic steel side edges and/or aluminum ladder crossbar and aluminum side edges respectively.

When the welding seat is required to be transferred to a welding conveying belt, the welding feeding part is firstly driven to translate to be close to or contact with the welding seat, the controller controls the power supply circuit to be switched on, the welding feeding part is pulled to adsorb the welding seat, then the welding feeding part is driven to translate to a set position along a set position, the controller controls the power supply circuit to be switched off, the welding feeding part is pulled to be separated from the welding seat, and when the welding feeding part is reset, the welding feeding part is driven to translate and reset. The arrangement direction of the welding feeding pulling piece and the starting and stopping points of the moving route can be preset, so that the direction perpendicular to the conveying direction on the welding conveying belt after the welding feeding pulling piece is transferred by the welding seat can be controlled.

When the welding seat and the cable bridge unit need to be respectively output to a welding conveyer belt, the welding seat transfer pushing piece is driven to translate to be close to or contact with the welding seat firstly, the controller controls the power supply circuit to be conducted, the welding seat transfer pushing piece adsorbs and fixes the welding seat, then the controller controls the movable unloading seat to clamp the cable bridge unit from the upper part firstly, the welding seat transfer pushing piece is taken out from an opening at the top of the welding seat and moved away from the cable bridge unit, the welding seat is effectively prevented from moving along with the cable bridge unit, potential safety hazards are avoided, after the cable bridge unit is moved away from the welding seat transfer pushing piece, the welding seat transfer pushing piece drives the welding seat to translate out of the welding conveyer belt along a set direction, the controller controls the power supply circuit to be disconnected, the welding seat transfer pushing piece is separated from the welding seat, and.

Furthermore, the welding feeding pulling piece and/or the welding seat transferring pushing piece are driven by a motor, a hydraulic cylinder, a compression cylinder or other driving elements with similar functions to translate, and can be flexibly configured according to the existing power configuration of a processing field.

Further, the welding position sensor is an optoelectronic switch and/or a laser sensor, or other detection elements with similar functions. The welding positioning sensors can be respectively configured with one (sleeve) at the front end and the rear end of the slit edge on the welding station, only when the welding positioning sensors at the two ends detect the slit edge at the same time, the controller can judge that the welding seat reaches the set welding station, and the position of the welding seat in the rear of the welding conveying belt along the conveying direction can be controlled through the welding positioning sensors.

Furthermore, the side limiting parts are a plurality of limiting baffles and/or limiting stops arranged at intervals, and the end limiting parts are continuously arranged limiting baffles or limiting stops, or other similar limiting structures which have limiting planes and are easy to process and install.

Still further, the welding seat includes left and right both sides frame, and the front and back both ends of side frame are connected as an organic wholely through the tip locating part respectively, and tip locating part top is higher than the side frame top. The end limiting part is a side edge end limiting part during welding and a connecting and fixing part of the side frame strip, and the structure of the whole welding seat is simpler.

Further, the welding seat is welded by a profile or fixed into a whole by a bolt; the end part limiting part and the side part limiting part are limiting sectional materials arranged on the welding seat. The welding seat is formed by processing and installing various sectional materials, is convenient to obtain materials, has low manufacturing cost and is beneficial to processing.

Furthermore, considering that the slit edge is a long and narrow bending plate, and the slit edge is perpendicular to the slit edge and is arranged in parallel, the positioning requirement of the slit edge along the length direction is higher than that of the slit edge along the width direction, the limiting height of the end limiting part is lower than that of the side limiting part, the end limiting part can play a limiting role, and the side limiting part can also play a role in supporting the slit edge.

Further, the welding seat enters/leaves the welding conveyer belt from one side of the welding conveyer belt, and the initial positions of the welding feeding pulling piece and the welding seat transferring pushing piece are located on the other side of the welding conveyer belt. Not only the overall arrangement is compact, saves the processing field, but also is favorable for being connected with other equipment on the whole welding processing production line.

Furthermore, the lower end of the welding gun is in a shape of a splayed outside and extends into a gap between two edges on the welding station. When the welding seat moves along with the welding conveying belt, the welding gun does not interfere with the step rail and the edge, fixed-point fixed-position welding of the welding gun is further ensured, and welding efficiency is improved.

The invention has the beneficial effects that:

1. the automatic welding processing of the edge and the crossbar can be realized, the processing speed is high, and the processing efficiency is high;

2. manual use is greatly reduced, and the quality of a welding finished product is stable;

3. the welding positioning sensor and the welding feeding pulling piece are used for positioning a to-be-welded piece in front and back directions and left and right directions on the welding conveying belt respectively, so that the positioning is accurate and rapid, and the follow-up efficient welding is ensured;

4. the welding processing is carried out by adopting the modes of fixed-point positioning of a welding gun and stepping type moving feeding of elements to be welded, so that the welding speed is further improved.

Drawings

FIG. 1 is a top view of a preferred construction of the device

FIG. 2 is a left side view of the positioning area of FIG. 1

FIG. 3 is a left side view of the weld zone of FIG. 1

FIG. 4 is a left side view of the unloading area of FIG. 1 (with the cable tray unit unloaded)

FIG. 5 is a left side view of the unloading section of FIG. 1 (during unloading with welded seat)

FIG. 6 is a top view of the soldering socket

FIG. 7 is a left side view of the welding seat with the edge and the crossbar

FIG. 8 is a front perspective view of FIG. 7

FIG. 9 is a front cross-sectional view of a welded cable tray unit

FIG. 10 is a top view of a welded cable tray unit

In FIGS. 1 to 10: the welding device comprises a welding seat 1, a cable bridge unit 2, a side frame 3, a movable unloading seat 4, a side limiting part 5, an end limiting part 6, a step edge 8, a step edge 9, a crossbar 10, a welding gun 11, a welding conveyer belt 11, a welding positioning sensor 12, a welding feeding pulling part 13 and a welding seat transferring pushing part 14.

Detailed Description

The invention will be further explained with reference to the drawings.

The ladder crossbar welding device shown in fig. 1 comprises a welding conveyer belt 11 and a welding seat 1 which is separated independently relative to the welding conveyer belt 11.

From right to left in the conveying direction in fig. 1, the welding conveyor belt 11 is divided into a positioning area for positioning the welding seats 1 loaded with the rollers 9 and the edges 8, a welding area for welding the rollers 9 and the edges 8 into the cable bridge unit 2, and a discharge area for discharging the cable bridge unit 2 and the welding seats 1, respectively.

As shown in fig. 1 and 2, a welding feed drawer 13 for transferring the welding socket 1 to the positioning area and adjusting the position of the welding socket 1 on the left and right sides of the welding conveyor 11 in the positioning area is provided corresponding to the positioning area.

As shown in fig. 6 and 7, the welding seat 1 is a hollow square frame, and includes left and right side frames 3 corresponding to left and right sides of the welding conveyer belt 11, the side frames 3 are provided with side position-limiting members 5 extending upwards, in this embodiment, the side position-limiting members 5 are a plurality of spacing stop blocks arranged at intervals, corresponding to the conveying direction of the welding conveyer belt 11, front and rear ends of the side frames 3 are respectively connected into a whole through end position-limiting members 6, the end position-limiting members 6 are integral position-limiting baffle plates, the top of the end position-limiting members 6 is higher than the top of the side frames 3, and the top of the side position-limiting members 5 is higher. The side frame 3, the end limiting part 6 and the side limiting part 5 are all welded or fixedly installed through bolts after section bars are processed, and the side limiting part 5, the end limiting part 6 and the welding seat 1 enclose a welding positioning cavity with an upward opening.

The side limiting parts 5 are a plurality of limiting baffles and/or limiting stops arranged at intervals, and the end limiting parts 6 are continuously arranged limiting baffles or limiting stops.

As shown in fig. 7, end limiting parts 6 are tightly attached to two ends of the edge 8, as shown in fig. 8, side limiting parts 5 are tightly attached to the outer side of the edge 8, the top of the side frame 3 is tightly attached to the bottom of the edge 8, two ends of the edge 9 are tightly attached to the two edges 8 respectively, and the edge 9 is arranged in parallel along a set distance and at a set position on the inner sides of the two edges 8, so that it is ensured that the relative position between the edge 9 and the edge 8 is fixed, and the position of the entire edge 9 and the edge 8 on the welding seat 1 is fixed, which becomes the premise of realizing positioning welding.

As shown in fig. 1 and 3, a welding position sensor 12 for detecting whether the welding seat 1 reaches a set welding station is arranged corresponding to the welding area, in this embodiment, the welding position sensor 12 is two sets of reflective photoelectric switches arranged at two ends of the edge 8 corresponding to the welding station; as shown in fig. 3, two welding guns 10 are fixed above the welding area, the lower ends of the welding guns 10 are in a shape of a Chinese character 'ba', the lower ends of the welding guns 10 extend into the inner sides of two edges 8 on the welding station, and the gun openings of the welding guns 10 are aligned with the welding positions of the crossbar 9 and the edges 8 on the welding station.

As shown in fig. 1, 4 and 5, a movable unloading seat 4 for moving away from the cable bridge unit 2 and a welding seat transfer pushing piece 14 for pushing away the welding seat 1 are arranged corresponding to the unloading area; in this embodiment, the movable discharging seat 4 is a jaw-type movable discharging seat 4, and the controller 4 controls the movable discharging seat to translate up and down under driving to clamp or loosen the slit edge 8, so as to discharge the cable bridge unit 2.

As shown in fig. 2 and 5, the welding feeding pulling part 13 and the welding seat transfer pushing part 14 are electromagnetic push-pull plates capable of independently translating under the driving of a motor, a hydraulic cylinder or a compression cylinder, the welding seat 1 is a magnetic conductive welding seat capable of being magnetically adsorbed, and the step bars 9 and the side edges 8 are non-magnetic steel step bars, non-magnetic steel step edges and/or aluminum step bars and aluminum side edges, respectively.

The controller is connected with a welding conveying belt 11, a welding feeding pulling piece 13, a welding gun 10 and a moving discharging seat 4 through a control circuit, the welding seat is transferred to a pushing piece 14, the controller is connected with a welding positioning sensor 12 through a signal circuit, in the embodiment, the controller receives a signal of the welding positioning sensor 12 and controls each part to perform the following work cycle:

controller control welding feeding draws piece 13 to start, the translation is close to and is located welding conveyer belt 11 outsidely, the welding seat 1 of loading with step crossbar 9 and step edge 8 in advance, controller control supply circuit switches on, welding feeding draws piece 13 magnetic adsorption to live welding seat 1, then along setting for the position translation to setting for the position under the drive, controller control supply circuit disconnection, welding feeding draws piece 13 and welding seat 1 and breaks away from, the welding seat shifts to welding conveyer belt 11's location region this moment, and welding seat 1 is for setting for the position in the location region for welding conveyer belt 11 left and right sides position, controller control welding feeding draws piece 13 translation to reset.

The controller controls the welding conveyer belt 11 to start, and detects and judges whether the welding seat 1 reaches a set welding station through the welding positioning sensor 12.

If the welding seat 1 reaches a set welding station, the controller controls the welding conveyer belt 11 to stop, at this time, the two ends of the most front ladder crossbar 9 of the welding seat 1 and the two welding positions of the two seam edges 8 just aim at the mouths of two welding guns 10, the controller controls the welding guns 10 to perform welding operation, and meanwhile, the welding guns slowly advance the set distance corresponding to the width of the ladder crossbar 9 at the set speed until the welding of the whole ladder crossbar 9 is completed, and the controller controls the welding conveyer belt 11 to stop.

The controller controls the welding conveyer belt 11 to be stopped after being started for a set time, at the moment, the two ends of the next ladder crossbar 9 and the two welding positions of the two side edges 8 are just aligned to the gun openings of the two welding guns 10, the controller controls the welding guns 10 to perform welding operation and simultaneously slowly advance the set distance corresponding to the width of the ladder crossbar 9 (namely the welding length of one ladder crossbar 9) at a set speed until the whole ladder crossbar 9 is welded, the controller controls the welding conveyer belt 11 to be stopped, the operation is circulated in such a way until all the ladder crossbars 9 are welded to form the cable bridge unit 2, and the welded and formed cable bridge unit 2 is shown in fig. 9 and 10.

The controller controls the welding conveyer belt 11 to be stopped after being started for a set time, and the welding seat 1 loaded with the cable bridge unit 2 reaches a discharging area.

The controller controls the welding seat transfer pushing piece 14 to start, the welding seat transfer pushing piece is translated to be close to or in contact with the welding seat 1, the controller controls the power supply circuit to be conducted, the welding seat transfer pushing piece 14 adsorbs and fixes the welding seat 1, then the controller controls the movable unloading seat 4 to move downwards and clamp the cable bridge unit 2 from the upper part, the movable unloading seat 4 is taken out from the top opening of the welding seat 1 and moves upwards to move away from the cable bridge unit 2 to a set position, and the controller controls the movable unloading seat 4 to reset; after the cable bridge unit 2 moves away from the welding conveyor belt, the controller controls the welding seat transfer pushing piece 14 to push the welding seat 1 to move horizontally away from the welding conveyor belt 11 along the set direction, the controller controls the power supply circuit to be switched off, the welding seat transfer pushing piece 14 is separated from the welding seat 1, and the controller controls the welding seat transfer pushing piece 14 to reset.

The direction of the arrow shown in fig. 1 is the transfer direction of the welding seat 1, the welding seat 1 enters/leaves the welding conveyer belt 11 from the same side of the welding conveyer belt 11, and the initial positions of the welding feeding pulling piece 13 and the welding seat transfer pushing piece 14 are located at the other side of the welding conveyer belt 11.