CN217045159U - A continuous welding conveying mechanism for vehicle axles - Google Patents

Abstract

A continuous welding and conveying mechanism for vehicle axles relates to the technical field of production and processing of auto parts, in particular to a continuous conveying for welding of heavy-duty vehicle axles, including a sequentially connected loading area, a feeding area, an automatic welding area and an unloading area. The automatic welding area includes a welding station, which is provided with a welding station for welding the axle, and the welding station is also provided with a receiving piece for receiving the axle, which is matched with the welding station. The automatic welding area is also provided with a transfer assembly for transferring the axle to the welding station. The transfer assembly includes three tooling groups arranged at equal intervals on the welding table through the mounting parts, and two adjacent tooling groups. The distance between the two welding stations is equal to the distance between the two welding stations. The transfer assembly also includes a displacement member that drives the tooling group to move from the feeding area along the unloading area, which solves the problem of on-site hoisting equipment in the existing axle welding. There are technical problems of limited space layout, inaccurate positioning, and inability to operate continuously in the upper and lower materials.

Description

A continuous welding conveying mechanism for vehicle axles

technical field

The utility model relates to the technical field of production and processing of automobile parts, in particular to a continuous welding and conveying mechanism of a vehicle axle.

Background technique

The vehicle axle is one of the key components of the car. It is connected to the frame through the suspension and is used to transmit various loads between the frame and the wheels. There are multiple welding points on the axle, and the quality of the welding is related to the safety of the vehicle. At present, the axle welding is performed manually or by robots. The incoming materials used in welding are realized by multiple sets of hoisting mechanisms. The transfer is time-consuming and labor-intensive, and the repeatability is not high.

The existing axles are provided with hoisting devices on different welding platforms. In the process of transferring the axles using the hoisting devices, various sensors need to be used to achieve positioning. In addition, the axle load is heavy, the transmission distance is long, and the energy consumption during operation is relatively high. With the continuous impact on the equipment during lifting and falling, there are often technical problems such as poor reciprocation accuracy and high maintenance and repair frequency during the hoisting process.

Utility model content

The purpose of this utility model is: in order to solve the technical problems of limited space layout, inaccurate positioning, and inability to operate continuously on the upper and lower materials of the on-site hoisting equipment, the utility model provides a continuous welding and conveying mechanism for vehicle axles.

The utility model specifically adopts the following technical solutions in order to achieve the above-mentioned purpose:

A continuous welding conveying mechanism for a vehicle axle, comprising a feeding area, a feeding area, an automatic welding area and a discharging area connected in sequence, the automatic welding area includes a welding table, and a welding table for welding a vehicle axle is arranged on the welding table. Welding station, the welding station is also provided with a receiving member for receiving the axle, which is matched with the welding station, and the automatic welding area is also provided with a transfer component for transferring the axle to the welding station. The transfer assembly includes three tooling groups that are arranged on the welding table at equal intervals through the mounting pieces, and the distance between two adjacent tooling groups is equal to the distance between the two welding stations, and the transfer assembly further includes: A displacement member that drives the tooling group to move from the feeding area along the unloading area.

Further, the mounting piece includes a screw rod that connects three tooling groups into one, and the three tooling groups are distributed on the screw rod at equal intervals.

Further, the displacement member includes two sliding rails arranged on the welding table, the tool assembly is provided with a sliding block that can slide on the sliding rails, the displacement member further includes a sliding driving cylinder, the The sliding driving cylinder is arranged below the tooling group in the middle position, and the base of the sliding driving cylinder is fixed on the welding table.

Further, the tooling assembly includes a fixed end and a movable end, the fixed end includes a fixed plate, a guide wheel is mounted on the fixed plate, and the movable end includes an axle clamping cylinder, and the axle clamping cylinder The output end of the vehicle is fixedly installed with a fixing plate, the fixing plate is installed with a guide wheel for clamping the axle, and the fixing plate of the fixed end and the fixing plate of the movable end are arranged opposite to each other.

Further, the receiving member includes a material receiving platform for receiving the axle, and a material receiving and lifting cylinder for driving the material receiving platform to move up and down is disposed directly below the material receiving platform.

Further, the receiving member further includes a guide sleeve arranged under the material receiving platform, and the guide sleeve includes two and is symmetrically distributed on both sides of the material receiving and lifting cylinder.

Further, the feeding area includes a feeding frame, two brackets for placing the axles are arranged on the feeding frame, and two guide wheel groups are arranged between the two brackets. A feeding and lifting cylinder for driving the guide wheel group to move up and down is fixedly arranged below the group, and at least two guide sleeves are symmetrically arranged on the lower part of the guide wheel group for the material feeding and lifting cylinder as a symmetrical axis.

Further, the feeding area includes a feeding frame, the left and right sides of the upper top surface of the feeding frame are provided with chain guide rails, and the chain guide rails located on the left and right sides of the upper top surface of the feeding frame are respectively provided with left trailers. Chain and right towline, the left and right towline are symmetrically distributed with tooling for placing axles, the tooling passes through the left towline and the right towline respectively through the pin and is connected with the left and right towline. Fixed as a whole, the left towline and the right towline are driven by a double sprocket closed-loop system.

Further, a load-bearing bearing matched with the left towline and the right towline is arranged below the tooling, and the load-bearing bearing is fixed on the tooling through a pin shaft.

Further, the double sprocket closed-loop system includes a feeding motor placed on the feeding frame, and the output end of the feeding motor drives the left drag chain and the right drag chain to move through the double sprocket.

Further, the unloading area includes a blanking frame, and the left and right ends of the upper top surface of the blanking frame are provided with double sprocket cover plate conveyor chains for transporting axles, and the double sprocket cover The board conveyor chain is driven by a motor.

The beneficial effects of the present utility model:

1. The present utility model includes a feeding area, a feeding area, an automatic welding area and a discharging area that are connected in sequence, and the automatic welding area includes a welding table on which a welding station for welding a vehicle axle is arranged, The welding table is also provided with a receiving piece for receiving the axle, which is matched with the welding station, and the automatic welding area is also provided with a transfer component for transferring the axle from the feeding area to the welding station. The transfer assembly includes three tooling groups that are arranged on the welding table at equal intervals through the mounting pieces, and the distance between two adjacent tooling groups is equal to the distance between the two welding stations, and the transfer assembly further includes: The displacement part that drives the tooling group to move from the feeding area along the unloading area. The axle to be welded reaches the feeding area through the feeding area, and then passes through the feeding area to the receiving part of the transfer component, and arrives and welds under the drive of the displacement part. The relative position of the station, after being welded by the welding station of the automatic welding area, the axle is transferred to the unloading area by the receiving piece under the push of the displacement piece, so as to complete the welding of the axle, the utility model is used as the axle Welding auxiliary equipment can effectively solve the technical problems of limited space layout, inaccurate positioning, and inability to operate continuously on the upper and lower materials of the hoisting equipment.

2. The installation part of the present invention includes a screw rod that connects three tooling groups into one, the three tooling groups are distributed at equal intervals on the screw rod, and the three tooling groups are connected into one through the screw rod, which can effectively ensure the The separation distance between the tooling groups is stabilized to match the distance between the welding stations.

3. The displacement member of the present invention includes two sliding rails arranged on the welding table, the tool assembly is provided with a sliding block that can slide on the sliding rails, and the displacement member also includes a sliding driving cylinder, The sliding driving cylinder is arranged below the tooling group in the middle position, the base of the sliding driving cylinder is fixed on the welding table, and the tooling group is pushed to the required position by the sliding driving cylinder, which is convenient to operate.

4. The tooling assembly of the present invention includes a fixed end and a movable end, the fixed end includes a fixed plate, a guide wheel is installed on the fixed plate, the movable end includes an axle clamping cylinder, and the axle clamp The output end of the tightening cylinder is fixedly installed with a fixed plate, and the fixed plate is installed with a guide wheel for clamping the axle. The wheel realizes the clamping of the axle, and the structure is simple and the operation is convenient.

5. The receiving part of the present utility model includes a receiving platform for receiving a vehicle axle, and a receiving and lifting cylinder for driving the receiving platform to move up and down is arranged directly below the receiving platform. The receiving part also includes a set of A guide sleeve under the material receiving platform, the guide sleeves include two and are symmetrically distributed on both sides of the material receiving and lifting cylinder. The axle is lifted through the material receiving and lifting cylinder of the carrier, so as to realize the lifting of the vehicle Switching of bridge positions.

6. The feeding area of the present utility model includes a feeding frame. The feeding frame is provided with two brackets for placing the axles, and two guide wheel groups are arranged between the two brackets. A feeding and lifting cylinder for driving the guiding wheel to move up and down is fixedly arranged below the guide wheel group, and at least two guide sleeves are arranged symmetrically with the feeding and lifting cylinder below the guide wheel group as a symmetrical axis. The placement of the bridge, the feeding and lifting cylinder starts to drive the guide wheel group to move upward, so as to realize the bearing of the guide wheel group on the axle, and the coordination of the feeding and lifting cylinder and the guide wheel group can effectively realize the change of the position of the axle.

7. The feeding area of the present utility model includes a feeding frame, the left and right sides of the upper top surface of the feeding frame are provided with chain guide rails, and the chain guide rails located on the left and right sides of the upper top surface of the feeding frame are respectively provided with The left towline and the right towline are symmetrically distributed with tooling for placing the axle, and the tooling passes through the left towline and the right towline respectively through the pins and is connected with the left and right towline. The drag chain is fixed as a whole, the left drag chain and the right drag chain are driven by a double sprocket closed-loop system, and a load-bearing bearing matched with the left drag chain and the right drag chain is arranged under the tooling, and the load-bearing bearing passes through the pin shaft. Fixed on the tooling, the double sprocket closed-loop system includes a feeding motor placed on the feeding frame, the output end of the feeding motor drives the left drag chain and the right drag chain to move through the double sprocket, and the unloading area includes The blanking frame, the left and right ends of the upper top surface of the blanking frame are provided with double sprocket cover conveyor chains for conveying axles. The double sprocket cover conveyor chains are driven by motors and fed through The motor drives the double sprocket to work, the working double sprocket drives the movement of the left towline and the right towline, and the moving left and right towline drives the relative fixed tooling movement through the pin, and the moving tooling drive is placed on it The movement of the axle is simple, so as to realize the transmission of the position of the axle.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the feeding area of the utility model;

Fig. 3 is the structural representation of the feeding area of the utility model;

Fig. 4 is the enlarged view of A part of Fig. 3 of the utility model;

Fig. 5 is the enlarged view of B part of Fig. 3 of the utility model;

6 is a schematic diagram of the connection structure between the transfer assembly and the automatic welding area of the present invention;

7 is a schematic structural diagram of the utility model connecting the transfer assembly and the automatic welding area from two other perspectives;

Fig. 8 is the structural representation of the blanking area of the utility model;

Reference numerals: 1-feeding area, 101-feeding rack, 102-support, 103-guide wheel group, 104-feeding lifting cylinder, 2-feeding area, 201-feeding frame, 202-double chain Wheel, 203-tooling, 204-left drag chain, 205-feed motor, 206-right drag chain, 207-pin, 208-load bearing, 209-chain guide, 210-chain, 211-pin, 3-shift Carrier, 301-Transfer No.1 Position, 302-Transfer No.2 Position, 303-Transfer No.3 Position, 304-Screw, 305-Transfer Guide Rail, 306-Sliding Drive Cylinder, 307-Fixing Plate, 308 -Guide Sleeve, 309-Material Lifting Cylinder, 310-Axle Clamping Cylinder, 311-Guide Wheel, 312-Material Platform, 4-Automatic Welding Area, 401-Welding Station, 5-Unloading Area, 501- Double sprocket cover conveyor chain, 6-axle.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described above are a part of the embodiments of the present invention, but not all of the embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Furthermore, the terms "first", "second", etc. are only used to differentiate the description and should not be construed to indicate or imply relative importance.

In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inside", "outside", "upper", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the practical The orientation or positional relationship that is usually placed when the new product is used is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it cannot be construed as a limitation of the present invention.

Example 1

As shown in Figures 1-8, a continuous welding and conveying mechanism for a vehicle axle includes a loading area 1, a feeding area 2, an automatic welding area 4 and an unloading area 5 that are connected in sequence. The automatic welding area 4 includes a welding table 401, The welding station 401 is provided with a welding station for welding the axle 6, and the welding station 401 is also provided with a receiving piece for receiving the axle 6 that cooperates with the welding station, and the automatic welding area 4 is also provided with The bridge 6 is transferred from the feeding area 2 to the transfer assembly of the welding station. The transfer assembly includes three tooling groups arranged on the welding table 401 at equal intervals through the mounting parts, and the distance between the two adjacent tooling groups is the same as the distance between the two adjacent tooling groups. The distances between the welding stations are equal. The transfer assembly also includes a displacement member that drives the tooling assembly to move from the feeding area 2 along the unloading area 5. The axle 6 to be welded passes through the feeding area 1 to the feeding area 2, and passes through the feeding area. 2 to the receiving part of the transfer component, and reach the position opposite to the welding station under the drive of the displacement part. After being welded by the welding station of the automatic welding area 4, the receiving part will move the car under the pushing of the displacement part. The bridge 6 is transferred to the unloading area 5, so as to complete the welding of the axle 6. As an auxiliary equipment for the welding of the axle 6, the utility model can effectively solve the problem that the hoisting equipment has limited space layout, inaccurate positioning, and inability to operate continuously in the upper and lower materials. technical issues.

Preferably, the mounting member includes a screw rod 304 that connects three tooling groups into one, the three tooling groups are distributed at equal intervals on the screw rod 304, and the three tooling groups are connected into one through the screw rod 304, which can effectively ensure that the three The spacing distance between tooling groups is stabilized to match the distance between welding stations.

Preferably, the displacement member includes two sliding rails arranged on the welding table 401, the tool assembly is provided with a sliding block that can slide on the sliding rails, and the displacement member further includes a sliding driving cylinder 306, which is arranged on the Below the tooling group in the middle position, the base of the sliding driving cylinder 306 is fixed on the welding table 401, and the tooling group is pushed to the desired position by the sliding driving cylinder 306, which is convenient to operate.

Preferably, the tooling assembly includes a fixed end and a movable end, the fixed end includes a fixed plate 307 on which a guide wheel 311 is mounted, the movable end includes an axle clamping cylinder 310, and the output end of the axle clamping cylinder 310 is fixedly installed There is a fixed plate 307 on which a guide wheel 311 for clamping the axle 6 is installed. The fixed plate 307 at the fixed end and the fixed plate 307 at the movable end are arranged opposite to each other, and the guide wheel 311 is driven by the axle clamping cylinder 310 to realize the alignment. The clamping of the axle 6 is simple in structure and convenient in operation.

Preferably, the receiving member includes a material receiving platform 312 for receiving the axle 6, and a material receiving lifting cylinder 309 is arranged directly below the material receiving platform 312 to drive the material receiving platform 312 to move up and down. The guide sleeve 308 under the platform 312 includes two guide sleeves 308 and is symmetrically distributed on both sides of the material receiving and lifting cylinder 309. The axle 6 is lifted through the material receiving and lifting cylinder 309 of the carrier, so as to realize the lifting of the axle 6. Switching the position of the axle 6.

Preferably, the loading area 1 includes a loading frame 101, and two brackets 102 for placing the axle 6 are arranged on the loading frame 101, and two guide wheel groups 103 are arranged between the two brackets 102. The lower part of the wheel group 103 is fixedly provided with a feeding and lifting cylinder 104 that drives the guide wheel group 103 to move up and down. At least two guide sleeves 308 are provided symmetrically with the upper material lifting cylinder 104 as a symmetrical axis. The axle 6 is placed through the bracket 102. The material lifting cylinder 104 starts to drive the guide wheel group 103 to move upward, thereby realizing the guide wheel group. The bearing of the axle 6 by the 103 can effectively change the position of the axle 6 through the cooperation of the feeding and lifting cylinder 104 and the guide wheel group 103 .

Preferably, the feeding area 2 includes a feeding frame 201 , the left and right sides of the upper top surface of the feeding frame 201 are provided with chain guide rails 209 , and the chain guide rails 209 located on the left and right sides of the upper top surface of the feeding frame 201 are respectively provided with chain guide rails 209 . The left towline 204 and the right towline 206, the left towline 204 and the right towline 206 are symmetrically distributed with tooling 203 for placing the axle 6, and the tooling 203 penetrates the left towline 204 and the right towline 206 through the pin 211 respectively. It is fixed with the left towline 204 and the right towline 206 as a whole. The left towline 204 and the right towline 206 are driven by the double sprocket 202 closed-loop system. The lower part of the tooling 203 is provided with the left towline 204 and the right towline 206. The load-bearing bearing 208 is fixed on the tooling 203 through the pin 207. The double sprocket 202 closed-loop system includes a feeding motor 205 placed on the feeding frame 201. The output end of the feeding motor 205 drives the left trailer through the double sprocket 202. The chain 204 and the right drag chain 206 move, and the unloading area 5 includes a blanking frame. The left and right ends of the upper top surface of the blanking frame are provided with double sprocket cover conveyor chains 501 for conveying the axle 6. The sprocket cover conveyor chain 501 is driven by a motor, and the double sprocket 202 is driven by the feeding motor 205 to work. The working double sprocket 202 drives the left drag chain 204 and the right drag chain 206 to move, and the moving left drag chain 204 and the right drag chain 206 drives the relative fixed tooling 203 through the column pin 211 to move, and the moving tooling 203 drives the axle 6 placed on it to move, thereby realizing the transmission of the position of the axle 6. The principle is simple and the operation is convenient.

Workflow: The axle 6 is hoisted to the bracket 102 on the feeding frame 101. After manually checking that the axle 6 is qualified, the feeding cylinder 104 is lifted and manually pushed to the top of the tooling 203 in the feeding area 2. ; Shrink the feeding and lifting cylinder 104 to make the axle 6 fall on the tooling 203 and automatically drag it forward to the top of the transfer No. 1 position 301; Axle 6, the sliding drive cylinder 306 drives the axle 6 to the welding station A, after the receiving part of the welding station A grabs the axle 6, the material receiving and lifting cylinder 309 descends, and the axle 6 starts to be welded at the welding station A; During the welding process, the sliding drive cylinder 306 is retracted to the original position to be ready to receive the second axle 6. After the welding of the welding station A is completed, the material receiving and lifting of the transfer No. 1 position 301 and the transfer No. 2 position 302 are simultaneously started. The cylinder 309 receives the second axle 6 and the first axle 6 and clamps them; the sliding drive cylinder 306 is activated again to transport the first axle 6 to the welding station B and the second axle 6 to welding Station A, and the axle 6 is grasped by the receiving piece respectively, the material receiving and lifting cylinder 309 is lowered, and the axle 6 starts to be welded at the welding station A and the welding station B; during the welding process, the sliding drive cylinder 306 shrinks to The original position is ready to connect to the third axle 6. After the welding of welding station A and welding station B is completed, start the transfer No. 1 position 301, transfer No. 2 position 302, and transfer No. 3 position 303 to receive and lift materials at the same time The cylinder 309 receives and clamps the third, second and first axles 6; so far, all the axles 6 are running at the three stations, and the sliding drive cylinder 306 starts again to transport the first axle 6 to the The unloading area 5 is directly above the double sprocket cover conveyor chain 501, the second axle 6 is transported to the welding station B, the third axle 6 is transported to the welding station A, and the welding station A, welding station The receiving part matched with B continues to grab the axle 6, and the material receiving and lifting cylinder 309 descends; the first axle 6 falls into the unloading area 5 and enters the next process, and then the entire conveyor chain moves repeatedly to realize the Continuous operation of bridge 6 welding.

It can be known from the technical common sense that the present invention can be realized by other embodiments without departing from its spirit or essential characteristics. Accordingly, the above-disclosed embodiments are, in all respects, illustrative and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims (10)

1. A continuous welding and conveying mechanism for an axle is characterized by comprising a feeding area (1), a feeding area (2), an automatic welding area (4) and a blanking area (5) which are connected in sequence, the automatic welding area (4) comprises a welding table (401), a welding station for welding the axle (6) is arranged on the welding table (401), the welding table (401) is also provided with a bearing piece which is matched with the welding station and is used for bearing the axle (6), the automatic welding area (4) is also provided with a shifting component for transferring the axle (6) to a welding station, the shifting assembly comprises three tool groups which are arranged on the welding table (401) at equal intervals through mounting pieces, the distance between every two adjacent tool groups is equal to the distance between every two welding stations, the shifting component also comprises a shifting piece which drives the tool set to move from the feeding area (2) along the blanking area (5).

2. The continuous welding and conveying mechanism for the axle according to claim 1, wherein the mounting member comprises a screw rod (304) which connects three tool sets into a whole, and the three tool sets are distributed on the screw rod (304) at equal intervals.

3. The continuous welding and conveying mechanism for the axle is characterized in that the displacement piece comprises two sliding rails arranged on the welding table (401), a sliding block capable of sliding on the sliding rails is arranged on the tool set, the displacement piece further comprises a sliding driving air cylinder (306), the sliding driving air cylinder (306) is arranged below the tool set (203) located at the middle position, and the base of the sliding driving air cylinder (306) is fixed on the welding table (401).

4. The continuous welding and conveying mechanism for the axles according to any one of claims 1 to 3, characterized in that the tooling set comprises a fixed end and a movable end, the fixed end comprises a fixed plate (307), a guide wheel (311) is mounted on the fixed plate (307), the movable end comprises an axle clamping cylinder (310), the output end of the axle clamping cylinder (310) is fixedly provided with the fixed plate (307), the fixed plate (307) is provided with the guide wheel (311) for clamping the axle (6), and the fixed plate (307) of the fixed end and the fixed plate (307) of the movable end are oppositely arranged.

5. The axle continuous welding conveying mechanism according to claim 1, characterized in that the receiving part comprises a receiving platform (312) for receiving the axle (6), and a receiving lifting cylinder (309) for driving the receiving platform (312) to move up and down is arranged right below the receiving platform (312).

6. The axle continuous welding conveying mechanism according to claim 5, characterized in that the receiving element further comprises a guide sleeve (308) disposed below the receiving platform (312), and the guide sleeve (308) comprises two guide sleeves symmetrically disposed on two sides of the receiving lifting cylinder (309).

7. The continuous welding and conveying mechanism for the axles according to claim 1, characterized in that the feeding area (1) comprises a feeding rack (101), two supports (102) for placing the axles (6) are arranged on the feeding rack (101), two guide wheel sets (103) are arranged between the two supports (102), a feeding lifting cylinder (104) for driving the guide wheel sets (103) to move up and down is fixedly arranged below the guide wheel sets (103), and at least two guide sleeves (308) are symmetrically arranged below the guide wheel sets (103) by taking the feeding lifting cylinder (104) as a symmetry axis.

8. The continuous welding and conveying mechanism for the axles according to claim 1, characterized in that the feeding area (2) comprises a feeding frame (201), chain guide rails (209) are arranged on the left and right sides of the upper top surface of the feeding frame (201), a left drag chain (204) and a right drag chain (206) are arranged on the chain guide rails (209) on the left and right sides of the upper top surface of the feeding frame (201), tools (203) for placing the axles (6) are symmetrically distributed on the left drag chain (204) and the right drag chain (206), the tools (203) respectively penetrate through the left drag chain (204) and the right drag chain (206) through pins (211) and are fixed with the left drag chain (204) and the right drag chain (206) into a whole, and the left drag chain (204) and the right drag chain (206) are driven by a double-sprocket (202) closed-loop system.

9. The continuous welding and conveying mechanism for the axle is characterized in that a bearing (208) matched with a left drag chain (204) and a right drag chain (206) is arranged below the tooling (203), and the bearing (208) is fixed on the tooling (203) through a pin shaft (207).

10. The axle continuous welding conveying mechanism according to claim 8, characterized in that the double-chain-wheel (202) closed-loop system comprises a feeding motor (205) placed on a feeding rack (201), and the output end of the feeding motor (205) drives a left drag chain (204) and a right drag chain (206) to move through the double-chain wheel (202).

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