CN217045159U

CN217045159U - Axle continuous welding conveying mechanism

Info

Publication number: CN217045159U
Application number: CN202220726146.4U
Authority: CN
Inventors: 刘桢; 杨松; 杨卫军
Original assignee: Rocket Force University of Engineering of PLA
Current assignee: Rocket Force University of Engineering of PLA
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-07-26
Anticipated expiration: 2032-03-30

Abstract

The continuous welding and conveying mechanism comprises a feeding area, an automatic welding area and a discharging area which are connected in sequence, wherein the automatic welding area comprises a welding table, a welding station for welding an axle is arranged on the welding table, a receiving piece which is matched with the welding station and used for receiving the axle is further arranged on the welding table, a transfer assembly for conveying the axle to the welding station is further arranged on the automatic welding area, the transfer assembly comprises three tool sets which are arranged on the welding table at equal intervals through mounting pieces, the distance between every two adjacent tool sets is equal to the distance between every two welding stations, the transfer assembly further comprises a shifting piece for driving the tool sets to move from the feeding area to the discharging area, and the problem that space layout limitation exists between upper materials and lower materials of hoisting equipment in the existing axle welding is solved, Inaccurate positioning and incapability of continuous operation.

Description

Axle continuous welding conveying mechanism

Technical Field

The utility model relates to an automobile parts production and processing technology field, concretely relates to axle welds conveying mechanism in succession.

Background

The automobile axle is one of key parts of an automobile and is connected with a frame through a suspension to transfer various loads between the frame and wheels. The axle is provided with a plurality of welding point positions, the quality of welding quality is related to the safety problem of an automobile, the welding operation of the existing axle is carried out manually or by a robot, incoming materials used during welding are transferred to the axle through a plurality of groups of hoisting mechanisms, the operation is time-consuming and labor-consuming, and the repetition precision is not high.

The existing axle is provided with a hoisting device on different welding platforms, and in the process of transferring the axle by the hoisting device, the axle needs to be matched with various sensors to realize positioning, and the axle is heavy in load, long in transmission distance, large in energy consumption in the operation process, and has the technical problems of poor reciprocating precision and high maintenance and repair frequency along with continuous impact on equipment during rising and falling.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an: there is spatial layout limitation, inaccurate, the technical problem that can not continuity of operation in location for solving on-the-spot lifting device at last lower material, the utility model provides an axle welds conveying mechanism in succession.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides an axle welds conveying mechanism in succession, is including the material loading district, pay-off district, automatic weld district and the unloading district that connect in order, automatic weld district includes the welding bench, be equipped with the welding station that is used for welding the axle on the welding bench, still be equipped with on the welding bench and weld the station complex and be used for accepting the piece of accepting the axle, the last subassembly that moves that is used for transmitting axle to welding station that still is equipped with of automatic weld district, move and carry the subassembly and include the three frock group that sets up on the welding bench through the installed part equidistance, distance between two adjacent frock groups equals with the distance between two welding stations, move and carry the subassembly still including driving the aversion piece that frock group removed along the unloading district from the pay-off district.

Further, the installed part includes the lead screw as an organic whole with three frock group link, and three frock group is equidistant distribution on the lead screw.

Further, the piece that shifts is including setting up two slide rails on the welding bench, be provided with the slider that can slide on the slide rail on the frock group, the piece that shifts still drives actuating cylinder including slideing, it drives actuating cylinder setting in the frock group below that is located the intermediate position to slide, it drives actuating cylinder's base to slide to fix on the welding bench.

Further, frock group includes stiff end and expansion end, the stiff end includes the fixed plate, install the guide pulley on the fixed plate, the expansion end includes axle die clamping cylinder, axle die clamping cylinder's output fixed mounting has the fixed plate, install the guide pulley that is used for pressing from both sides tight axle on the fixed plate, the fixed plate of stiff end and the fixed plate of expansion end set up mutually.

Furthermore, the receiving piece comprises a receiving platform for receiving the axle, and a receiving lifting cylinder for driving the receiving platform to move up and down is arranged right below the receiving platform.

Furthermore, the receiving piece further comprises guide sleeves arranged below the receiving platform, and the guide sleeves comprise two guide sleeves which are symmetrically distributed on two sides of the receiving lifting cylinder.

Furthermore, the material loading district includes the material loading frame, be equipped with two supports that are used for placing the axle on the material loading frame, be provided with two guide pulley groups between two supports, the fixed material loading lift cylinder that is provided with the drive guide pulley group and reciprocates in the below of guide pulley group, the below of guide pulley group is equipped with two at least uide bushings for symmetry axis symmetry with material loading lift cylinder.

Further, pay-off district includes the pay-off frame, the left and right sides of the top surface of pay-off frame all is provided with chain guide, is provided with left tow chain and right tow chain on the chain guide that is located the top surface left and right sides in the pay-off frame respectively, the last symmetric distribution of left tow chain and right tow chain has the frock that is used for placing the axle, the frock runs through left tow chain and right tow chain respectively and fixes as an organic whole with left tow chain and right tow chain through the pin, left tow chain and right tow chain pass through the drive of double sprocket closed loop system.

Further, a bearing matched with the left drag chain and the right drag chain is arranged below the tool, and the bearing is fixed on the tool through a pin shaft.

Furthermore, the double-chain wheel closed-loop system comprises a feeding motor placed on the feeding rack, and the output end of the feeding motor drives the left drag chain and the right drag chain to move through the double-chain wheel.

Furthermore, the unloading district includes the unloading frame, both ends all are provided with the double sprocket apron conveying chain that is used for transmitting the axle about the upper top surface of unloading frame, double sprocket apron conveying chain passes through motor drive.

The utility model has the advantages that:

1. the utility model comprises a feeding area, an automatic welding area and a discharging area which are connected in sequence, wherein the automatic welding area comprises a welding table, the welding table is provided with a welding station for welding an axle, the welding table is also provided with a bearing piece which is matched with the welding station and is used for bearing the axle, the automatic welding area is also provided with a transfer assembly for transmitting the axle from the feeding area to the welding station, the transfer assembly comprises three tool sets which are arranged on the welding table at equal intervals through the mounting piece, the distance between two adjacent tool sets is equal to the distance between two welding stations, the transfer assembly also comprises a shifting piece which drives the tool sets to move from the feeding area along the discharging area, the axle to be welded reaches the feeding area through the feeding area, reaches the bearing piece of the transfer assembly through the feeding area, and reaches the position relative to the welding station under the driving of the shifting piece, after the welding station welding of automatic weld zone, transmit axle to unloading district by the accepting piece under the promotion of displacement piece to the completion is to the welding of axle, the utility model relates to an axle welded auxiliary assembly can effectively solve hoisting equipment and have space layout limitation, the inaccurate, the technical problem that can not the continuity of operation in location at upper and lower material.

2. The installed part includes with three frock built-up connection lead screw as an organic whole, equidistant distribution on the lead screw of three frock group, as an organic whole with three frock built-up connection through the lead screw, can effectively ensure between the three frock group spacing stable so that and the distance phase-match between the welding station.

3. The piece that shifts is including setting up two slide rails on the welding bench, be provided with the gliding slider on the slide rail in the frock group, the piece that shifts still drives actuating cylinder including slideing, it drives actuating cylinder setting in the frock group below that is located the intermediate position to slide, slide and drive actuating cylinder's base and fix on the welding bench, drive actuating cylinder through slideing and promote frock group arrival required position, simple operation.

4. Frock group includes stiff end and expansion end, the stiff end includes the fixed plate, install the guide pulley on the fixed plate, the expansion end includes axle die clamping cylinder, axle die clamping cylinder's output fixed mounting has the fixed plate, install the guide pulley that is used for pressing from both sides tight axle on the fixed plate, the fixed plate of stiff end and the fixed plate opposite direction setting of expansion end realize pressing from both sides tightly simple structure convenient operation to the axle through axle die clamping cylinder drive guide pulley.

5. The receiving piece is including the material platform that connects that is used for accepting the axle, connect the material platform that connects that the material platform reciprocated to be provided with the drive under the material platform and connect the material lift cylinder, the receiving piece is still including setting up the uide bushing in connecing material platform below, the uide bushing includes that two and symmetric distributions are in the both sides of connecing material lift cylinder, realizes the lifting to the axle through connecing the material lift cylinder that holds the carrier to the switching of realization to the axle position.

6. The material loading district includes the material loading frame, be equipped with two supports that are used for placing the axle on the material loading frame, be provided with two guide pulley groups between two supports, the fixed material loading lift cylinder that is provided with drive guide pulley group and reciprocates in the below of guide pulley group, material loading lift cylinder is equipped with two at least uide bushings for symmetry axis symmetry in the below of guide pulley group, realizes placing the axle through the support, and material loading lift cylinder starts drive guide pulley group upward movement to realize bearing of guide pulley group to the axle, can effectively realize the change to the axle position through material loading lift cylinder, guide pulley group's cooperation.

7. The feeding area of the utility model comprises a feeding frame, wherein the left and the right sides of the upper top surface of the feeding frame are provided with chain guide rails, the chain guide rails positioned on the left and the right sides of the upper top surface of the feeding frame are respectively provided with a left drag chain and a right drag chain, the left drag chain and the right drag chain are symmetrically distributed with tools for placing an axle, the tools respectively penetrate through the left drag chain and the right drag chain through pins and are fixed with the left drag chain and the right drag chain into a whole, the left drag chain and the right drag chain are driven by a double-sprocket closed-loop system, a bearing matched with the left drag chain and the right drag chain is arranged below the tools, the bearing is fixed on the tools through a pin shaft, the double-sprocket closed-loop system comprises a feeding motor arranged on the feeding frame, the output end of the feeding motor drives the double-sprocket left drag chain and the right drag chain to move through a wheel, the blanking area comprises a blanking frame, both ends all are provided with the double sprocket apron conveying chain that is used for transmitting the axle about the last top surface of unloading frame, double sprocket apron conveying chain passes through motor drive, through pay-off motor drive double sprocket work, and the motion of left tow chain of drive of work and right tow chain, the motion of the frock motion rather than relatively fixed through the pin, and the axle motion of placing on it is driven to the frock of motion to the realization is to the transmission of axle position, and the principle is simple, convenient operation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the feeding area of the present invention;

FIG. 3 is a schematic view of the feeding area of the present invention;

FIG. 4 is an enlarged view of the portion A of FIG. 3 according to the present invention;

FIG. 5 is an enlarged view of the portion B of FIG. 3 according to the present invention;

FIG. 6 is a schematic view of the connection structure of the transfer assembly and the automatic welding zone according to the present invention;

FIG. 7 is a schematic view of the transfer assembly and the automatic welding area connecting the two other viewing angles;

FIG. 8 is a schematic view of the blanking area of the present invention;

reference numerals are as follows: 1-feeding area, 101-feeding rack, 102-bracket, 103-guide wheel set, 104-feeding lifting cylinder, 2-feeding area, 201-feeding rack, 202-double chain wheel, 203-tool, 204-left drag chain, 205-feeding motor, 206-right drag chain, 207-pin shaft, 208-bearing, 209-chain guide rail, 210-chain, 211-pin shaft, 3-transferring piece, 301-transferring first position, 302-transferring second position, 303-transferring third position, 304-screw rod, 305-transferring guide rail, 306-sliding driving cylinder, 307-fixing plate, 308-guide sleeve, 309-receiving lifting cylinder, 310-axle clamping cylinder, 311-guide wheel, 312-receiving platform, 4-automatic welding area, 401-welding table, 5-blanking area, 501-double-sprocket cover plate conveying chain and 6-axle.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented 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 a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that the directions or positional relationships indicated by the terms "inside", "outside", "upper", and the like are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the utility model is conventionally placed when in use, and are only for convenience of describing the utility model and simplifying the description, but not for indicating or implying that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1-8, an axle continuous welding conveying mechanism comprises a feeding area 1, a feeding area 2, an automatic welding area 4 and a blanking area 5 which are connected in sequence, wherein the automatic welding area 4 comprises a welding table 401, a welding station for welding an axle 6 is arranged on the welding table 401, a receiving piece which is matched with the welding station and is used for receiving the axle 6 is further arranged on the welding table 401, a transfer component for transferring the axle 6 from the feeding area 2 to the welding station is further arranged on the automatic welding area 4, the transfer component comprises three tool sets which are arranged on the welding table 401 at equal intervals through mounting pieces, the distance between every two adjacent tool sets is equal to the distance between every two welding stations, the transfer component further comprises a displacement piece which drives the tool sets to move from the feeding area 2 along the blanking area 5, the axle 6 to be welded reaches the feeding area 2 through the feeding area 1 and moves to the receiving piece of the transfer component through the feeding area 2, and reach the position relative with the welding station under the drive of aversion piece, after the welding station welding of automatic weld zone 4, transmit axle 6 to unloading district 5 by the adapter under the promotion of aversion piece to accomplish the welding to axle 6, the utility model relates to an axle 6 welded auxiliary assembly can effectively solve hoisting equipment and have spatial layout limitation, the inaccurate, the technical problem that can not the continuity of operation in location at upper and lower material.

Preferably, the installed part includes the lead screw 304 that connects as an organic whole three frock groups, and three frock groups are equidistant distribution on lead screw 304, connects as an organic whole three frock groups through lead screw 304, can effectively ensure the stability of spacing distance between the three frock group so that with the distance phase-match between the welding station.

Preferably, the shifting part comprises two slide rails arranged on the welding table 401, a slide block capable of sliding on the slide rails is arranged on the tool set, the shifting part further comprises a sliding driving cylinder 306, the sliding driving cylinder 306 is arranged below the tool set located in the middle position, a base of the sliding driving cylinder 306 is fixed on the welding table 401, and the tool set is pushed to reach a required position through the sliding driving cylinder 306, so that the operation is convenient and fast.

Preferably, the frock group includes stiff end and expansion end, the stiff end includes dead plate 307, install guide pulley 311 on the dead plate 307, the expansion end includes axle die clamping cylinder 310, axle die clamping cylinder 310's output fixed mounting has dead plate 307, install guide pulley 311 that is used for pressing from both sides tight axle 6 on the dead plate 307, the dead plate 307 of stiff end and the dead plate 307 of expansion end are to setting up relatively, through axle die clamping cylinder 310 drive guide pulley 311 realize the clamp to axle 6, simple structure convenient operation.

Preferably, the receiving element includes a receiving platform 312 for receiving the axle 6, a receiving lifting cylinder 309 is disposed under the receiving platform 312 to drive the receiving platform 312 to move up and down, the receiving element further includes a guide sleeve 308 disposed under the receiving platform 312, the guide sleeve 308 includes two guide sleeves 308 symmetrically disposed on two sides of the receiving lifting cylinder 309, and the receiving lifting cylinder 309 of the receiving element lifts the axle 6, so as to switch the position of the axle 6.

Preferably, the loading area 1 includes a loading rack 101, two supports 102 for placing the axle 6 are arranged on the loading rack 101, two guide wheel sets 103 are arranged between the two supports 102, a loading lifting cylinder 104 for driving the guide wheel sets 103 to move up and down is fixedly arranged below the guide wheel sets 103, the loading lifting cylinder 104 arranged below the two guide wheel sets 103 is connected to the same air source, at least two guide sleeves 308 are symmetrically arranged below the guide wheel sets 103 with the loading lifting cylinder 104 as a symmetry axis, the axle 6 is placed by the supports 102, the loading lifting cylinder 104 starts to drive the guide wheel sets 103 to move up, so that the bearing of the guide wheel sets 103 on the axle 6 is realized, and the position of the axle 6 can be effectively changed by the cooperation of the loading lifting cylinder 104 and the guide wheel sets 103.

Preferably, the feeding area 2 comprises a feeding frame 201, the left side and the right side of the upper top surface of the feeding frame 201 are both provided with chain guide rails 209, the chain guide rails 209 positioned on the left side and the right side of the upper top surface of the feeding frame 201 are respectively provided with a left drag chain 204 and a right drag chain 206, tooling 203 for placing the vehicle axle 6 are symmetrically distributed on the left drag chain 204 and the right drag chain 206, the tooling 203 respectively penetrates through the left drag chain 204 and the right drag chain 206 through pins 211 and is fixed with the left drag chain 204 and the right drag chain 206 into a whole, the left drag chain 204 and the right drag chain 206 are driven by a double-chain-wheel 202 closed-loop system, a bearing 208 matched with the left drag chain 204 and the right drag chain 206 is arranged below the tooling 203, the bearing 208 is fixed on the tooling 203 through a pin 207, the double-chain-wheel 202 closed-loop system comprises a feeding motor 205 positioned on the feeding frame 201, the output end of the feeding motor 205 drives the left drag chain 204 and the right drag chain 206 to move through the double-chain 202, the blanking area 5 comprises a blanking rack, double-sprocket cover plate conveying chains 501 used for conveying the axle 6 are arranged at the left end and the right end of the upper top surface of the blanking rack, the double-sprocket cover plate conveying chains 501 are driven by a motor and drive double sprockets 202 to work through a feeding motor 205, the working double sprockets 202 drive a left tow chain 204 and a right tow chain 206 to move, the moving left tow chain 204 and the moving right tow chain 206 are driven to move through pins 211 and tools 203 which are relatively fixed with the moving left tow chain 204 and the moving right tow chain 206, and the moving tools 203 drive the axle 6 placed on the moving left tow chain 204 to move, so that the position of the axle 6 is transmitted, the principle is simple, and the operation is convenient.

The working process comprises the following steps: the axle 6 is hoisted to the bracket 102 on the feeding frame 101, and after the axle 6 is manually checked to be qualified, the feeding lifting cylinder 104 is lifted and manually pushed to the position right above the tooling 203 of the feeding area 2; the loading lifting cylinder 104 is contracted, so that the axle 6 is automatically dragged forwards to the position above the first transfer position 301 after falling onto the tool 203; lifting the material receiving lifting cylinder 309 of the first-position lifting transfer 301, receiving the axle 6, driving the axle 6 to a welding position A by the sliding driving cylinder 306, and after the axle 6 is grabbed by the carrying piece of the welding position A, descending the material receiving lifting cylinder 309, and welding the axle 6 at the welding position A; in the welding process, the sliding driving cylinder 306 contracts to the original position to prepare for receiving a second axle 6, after the welding of the welding station A is finished, the material receiving lifting cylinder 309 for transferring the first position 301 and the second position 302 is started at the same time, and the second axle 6 and the first axle 6 are received and clamped; the sliding driving cylinder 306 is started again to convey the first axle 6 to the welding station B, the second axle 6 to the welding station A, the axle 6 is grabbed by the adapting piece respectively, the material receiving lifting cylinder 309 descends, and the axle 6 starts to be welded at the welding station A and the welding station B; in the welding process, the sliding driving cylinder 306 contracts to the original position to be connected with a third axle 6, after welding of the welding station A and the welding station B is finished, the first-position-transferring 301, the second-position-transferring 302 and the third-position-transferring 303 are started to be connected with the material lifting cylinder 309, and the third, the second and the first axles 6 are received and clamped; until now, the axles 6 are all running on the three stations, the sliding driving cylinder 306 is started again to convey the first axle 6 to the blanking area 5 right above the double-sprocket cover plate conveying chain 501, convey the second axle 6 to the welding station B, convey the third axle 6 to the welding station A, continue to grab the axle 6 by the receivers matched with the welding station A and the welding station B, and descend the material receiving lifting cylinder 309; the first axle 6 falls into the blanking area 5 to enter the next process, and then the whole conveying chain acts repeatedly and circularly to realize continuous operation of welding the axles 6.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.

Claims

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).