阅读说明：本技术 一种自动换料的焊接装置及其焊接方法 (Welding device capable of automatically changing materials and welding method thereof ) 是由 黄文涛 陈新红 刘拉 赵义 陈世伦 雷鹏 张沐晗 于 2021-10-12 设计创作，主要内容包括：本发明公开一种自动换料的焊接装置及其焊接方法,送料部偏心转动连接在储料部上,各送料管道的出口可交替对应母材板件上的待焊区,各推动部沿其移动方向依次对应接料区和各送料管道入口,通过对送料部的偏心转动设置,使得接料区能够对应不同的储料管道进行接料,推动部沿其移动方向依次对应接料区和各送料管道入口,在送料部转动的过程中,使得推动部能够依次推动接料区的待焊物进入送料管道入口,进而在切换接料区接料和切换送料管道相对待焊区的位置后,能够使得推动部能够推动接料区上不同的待焊物进入相应的接料管道中,无需再进行多种待焊物进行焊接过程中,分别控制不同待焊物相应的输送管道进行位移,且能够快速完成对待焊物的切换。(The invention discloses a welding device with automatic material changing and a welding method thereof, wherein a feeding part is eccentrically and rotatably connected to a material storing part, the outlet of each feeding pipeline can alternately correspond to a region to be welded on a base material plate, each pushing part sequentially corresponds to a material receiving region and each feeding pipeline inlet along the moving direction of the pushing part, the material receiving region can receive materials corresponding to different material storing pipelines by the eccentric rotation of the feeding part, the pushing part sequentially corresponds to the material receiving region and each feeding pipeline inlet along the moving direction of the pushing part, the pushing part can sequentially push the materials to be welded in the material receiving region into the feeding pipeline inlets in the rotating process of the feeding part, and further can push different materials to be welded in the material receiving region into corresponding material receiving pipelines after the material receiving region is switched and the positions of the feeding pipelines to be welded are switched, and the welding process of various materials to be welded is not required, the corresponding conveying pipelines of different objects to be welded are respectively controlled to move, and the switching of the objects to be welded can be rapidly completed.)

1. A welding device capable of automatically changing materials is characterized by comprising a material storage part and a feeding part for righting an object to be welded on a base metal plate, the material storage part and the material feeding part are respectively provided with two material storage pipelines and two material feeding pipelines which are adaptive to different materials to be welded, the material storage part and the material feeding part are arranged above the base material plate at intervals from top to bottom, the width of the interval is matched with the height of the single object to be welded, an outlet of the material storage pipeline is arranged on one side, close to the feeding part, of the material storage part, an inlet of the feeding pipeline and a material receiving area for receiving blanking of the outlet of the material storage pipeline are arranged on one side, close to the material storage part, of the material storage part, a pushing part for pushing the to-be-welded object into the inlet of the feeding pipeline is arranged at the outlet of each material storage pipeline, and the pushing parts are movably arranged at the intervals; the feeding part is eccentrically and rotatably connected to the material storage part, the outlet of each feeding pipeline can alternately correspond to a region to be welded on the base metal plate, and each pushing part sequentially corresponds to the material receiving region and the inlet of each feeding pipeline along the moving direction of the pushing part.

2. The automatic reloading welding device as claimed in claim 1, wherein said feed pipes rotated to said area to be welded are horizontally positioned between outlets of said two magazine pipes, and each of said pushing portions is symmetrically disposed at an outer side of a corresponding one of said magazine pipes.

3. The automatic reloading welding device as claimed in claim 1 or 2, wherein welding means are provided between said feeding portion and said base plate member, and said discharge opening of each of said feeding pipes is alternately adjacent to said welding means.

4. The automatic reloading welding device as defined in claim 3, wherein a welding opening of said welding mechanism faces an edge of said object to be welded and rotates around a circumference of said object to be welded, and a rotation axis of said welding opening coincides with an outlet center of a feeding pipe corresponding to said area to be welded.

5. The automatic reloading welding device of claim 4, wherein said welding mechanism is rotatably coupled to said magazine.

6. The automatic reloading welding device as recited in claim 5, wherein said welding mechanism is provided with an adjusting mechanism for adjusting the position of said crater in a radial direction with respect to said object to be welded.

7. The automatic reloading welding device as recited in claim 3, further comprising a displacement mechanism for adjusting a position of said magazine with respect to said base material plates, said displacement mechanism comprising a moving portion capable of positioning said magazine in a horizontal lateral direction, a horizontal longitudinal direction, and a vertical direction, respectively.

8. The automatic reloading welding device as recited in claim 7, further comprising a working platform for carrying said base material plates, and an equipment base for mounting said working platform, wherein said equipment base is provided with an angle adjuster for adjusting an angle of said working platform.

9. The welding method of the welding device capable of automatically changing materials is characterized by comprising the following steps of:

storing materials: before the material storage pipeline is placed into the material to be welded, each pushing part is moved to the corresponding outlet of the material storage pipeline, the outlet of the material storage pipeline is blocked, the material to be welded is prevented from flowing out of the material storage pipeline, and after the blocking is finished, the material to be welded is placed in the corresponding material storage pipeline;

positioning: before welding the object to be welded, the moving part adjusts the material storage part along the horizontal transverse direction, the horizontal longitudinal direction and the vertical direction, and after the material storage part reaches a specified position, the material storage part with the material conveying part moves downwards until the lower plane of the object to be welded is just close to the upper plane of the base material plate;

discharging: the feeding part rotates, the corresponding outlet center of the feeding pipeline is rotated to a position which is overlapped with the circle center of the circular motion of the welding opening, the pushing part recovers until the object to be welded falls down, then the pushing part pushes the object to be welded forward and falls into the feeding pipeline, the object to be welded falls onto the base metal plate through the feeding pipeline, and then the pushing part recovers and blocks the material storage pipeline;

welding: and the crater starts to rotate and weld around the object to be welded to finish the welding work.

10. The welding method of the automatic reloading welding device as recited in claim 9, wherein in the step of positioning, the angle adjuster drives the working platform to rotate, so as to level the base plate with respect to the object to be welded.

Technical Field

The invention relates to the technical field of welding, in particular to an automatic material changing welding device and a welding method thereof.

Background

Conventional resistance welding is generally suitable for thin plate welding, a high-strength steel plate is usually adopted for a back door of a special vehicle body, the thickness of the plate exceeds 5mm, and the technical bottleneck exists in the conventional resistance welding. Manual welding, inefficiency, welding effect easily receive the environmental impact, and welding precision uniformity is poor. The robot welding equipment has low utilization rate, high one-time investment price, high equipment maintenance cost and high requirement on operation programmers. The portable tube plate welding equipment needs a large amount of adjustment work, is portable and mainly operated by people, and the large amount of adjustment work needs manual control, so that time waste exists, and the working beat is unstable.

Patent document CN103447674B discloses a multi-specification stud welding mistake proofing device and method, which includes a stud welding gun, a welding gun sleeve is sleeved on the head of the stud welding gun, the welding gun sleeve is matched with a guide sleeve, and the guide sleeve is sleeved on a stud welding tool. Sleeving a welding gun sleeve on the head of the stud welding gun; mounting a workpiece to be welded on a stud welding tool; holding a stud welding gun by hand, and sleeving a welding gun sleeve into a guide sleeve; and determining whether the stud welding gun is misplaced or not through a welding indicator lamp of the stud welding gun. The error-proofing device for stud welding of studs with multiple specifications can smoothly perform stud welding only when the welding gun sleeve is sleeved in the correct guide sleeve, and the error-proofing device and the method for stud welding of studs with multiple specifications avoid the phenomenon of error welding of studs, are simple and easy to implement, and ensure the qualified rate of products. But it requires individual guide sleeves, inevitably resulting in a complication of the entire device.

The patent document CN105598564B discloses a device for realizing full-automatic stud welding of a T-shaped welding nail, and the invention discloses a device for realizing full-automatic stud welding of a T-shaped welding nail, which comprises a three-axis motion platform, a plurality of automatic welding guns, a plurality of automatic feeding mechanisms, a conveying track for conveying the T-shaped welding nail sleeved with a ceramic ring, and an automatic sleeving mechanism for the T-shaped welding nail and the ceramic ring; the up-down, left-right and front-back movement of the automatic welding gun is realized through the three-axis movement platform; the automatic feeding mechanisms can move left and right or back and forth, a feeding port of each automatic feeding mechanism is connected with a conveying track for conveying the T-shaped welding nails sleeved with the ceramic rings, and feeding ports of the conveying tracks are connected to output tracks of the T-shaped welding nails and the automatic sleeving mechanisms of the ceramic rings. However, for welding of welding nails with different structures, a complex conveying mechanism and a complex positioning function need to be arranged, so that the cost of the whole device is increased, and the device is inconvenient to use.

Disclosure of Invention

The invention aims to provide an automatic material changing welding device and a welding method thereof, which are used for solving the problems in the prior art, a feeding part is eccentrically and rotatably connected to a material storage part, the outlet of each feeding pipeline can alternately correspond to a region to be welded on a base metal plate, each pushing part sequentially corresponds to a material receiving region and the inlet of each feeding pipeline along the moving direction of the pushing part, and the pushing part pushes the corresponding objects to be welded on the material receiving region into the corresponding inlets of the feeding pipelines, so that the switching of the objects to be welded can be rapidly completed, the labor amount is reduced, the technical requirements on operators are low, the manual operation is easy, the investment cost is low, and the welding device is suitable for batch production.

In order to achieve the purpose, the invention provides the following scheme: the invention provides an automatic material changing welding device, which comprises a material storage part and a feeding part for righting an object to be welded on a base metal plate, the material storage part and the material feeding part are respectively provided with two material storage pipelines and two material feeding pipelines which are adaptive to different materials to be welded, the material storage part and the material feeding part are arranged above the base material plate at intervals from top to bottom, the width of the interval is matched with the height of the single object to be welded, an outlet of the material storage pipeline is arranged on one side, close to the feeding part, of the material storage part, an inlet of the feeding pipeline and a material receiving area for receiving blanking of the outlet of the material storage pipeline are arranged on one side, close to the material storage part, of the material storage part, a pushing part for pushing the to-be-welded object into the inlet of the feeding pipeline is arranged at the outlet of each material storage pipeline, and the pushing parts are movably arranged at the intervals; the feeding part is eccentrically and rotatably connected to the material storage part, the outlet of each feeding pipeline can alternately correspond to a region to be welded on the base metal plate, and each pushing part sequentially corresponds to the material receiving region and the inlet of each feeding pipeline along the moving direction of the pushing part.

Preferably, the feeding pipeline which rotates to the area to be welded is located between outlets of the two storage pipelines in the horizontal direction, and the pushing portions are symmetrically arranged on the outer sides of the corresponding storage pipelines.

Preferably, a welding mechanism is arranged between the feeding part and the base material plate, and the discharge port of each feeding pipeline can be alternatively close to the welding mechanism.

Preferably, the crater of the welding mechanism faces the edge of the object to be welded and rotates around the circumference of the object to be welded for welding, and the rotation axis of the crater coincides with the outlet center of the feeding pipeline corresponding to the area to be welded.

Preferably, the welding mechanism is rotatably connected to the storing portion.

Preferably, the welding mechanism is provided with an adjusting mechanism for adjusting the position of the weld crater along the radial direction relative to the object to be welded.

Preferably, still include and be used for adjusting the stock portion is relative the displacement mechanism of mother plate spare position, displacement mechanism includes respectively can be along horizontal, horizontal vertical and vertical direction location the removal portion of stock portion.

Preferably, the device further comprises a working platform for bearing the base material plate and an equipment base for installing the working platform, wherein an angle adjuster for adjusting the angle of the working platform is arranged on the equipment base.

The welding method of the welding device with the automatic material changing function is further provided, and comprises the following steps:

storing materials: before the material storage pipeline is placed into the material to be welded, each pushing part is moved to the corresponding outlet of the material storage pipeline, the outlet of the material storage pipeline is blocked, the material to be welded is prevented from flowing out of the material storage pipeline, and after the blocking is finished, the material to be welded is placed in the corresponding material storage pipeline;

positioning: before welding the object to be welded, the moving part adjusts the material storage part along the horizontal transverse direction, the horizontal longitudinal direction and the vertical direction, and after the material storage part reaches a specified position, the material storage part with the material conveying part moves downwards until the lower plane of the object to be welded is just close to the upper plane of the base material plate;

discharging: the feeding part rotates, the corresponding outlet center of the feeding pipeline is rotated to a position which is overlapped with the circle center of the circular motion of the welding opening, the pushing part recovers until the object to be welded falls down, then the pushing part pushes the object to be welded forward and falls into the feeding pipeline, the object to be welded falls onto the base metal plate through the feeding pipeline, and then the pushing part recovers and blocks the material storage pipeline;

welding: the welding craters begin to rotate around the objects to be welded to complete the welding work;

preferably, in the step of positioning, the angle regulator drives the working platform to rotate, and the base material plate is leveled relative to the object to be welded.

Compared with the prior art, the invention has the following technical effects:

firstly, one side of the material storage part, which is close to the material feeding part, is provided with an outlet of a material storage pipeline, one side of the material feeding part, which is close to the material storage part, is provided with an inlet of the material feeding pipeline and a material receiving area for receiving the blanking of the outlet of the material storage pipeline, the outlet of each material storage pipeline is provided with a pushing part for pushing a material to be welded into the inlet of the material feeding pipeline, and the pushing parts are movably arranged at intervals; the eccentric rotation of the feeding part is connected to the material storage part, the outlet of each feeding pipeline can alternately correspond to the area to be welded on the base metal plate, each pushing part sequentially corresponds to the material receiving area and the inlet of each feeding pipeline along the moving direction, the material receiving area can receive materials corresponding to different storage pipelines by the eccentric rotation of the feeding part, and the pushing part sequentially corresponds to the material receiving area and the inlet of each feeding pipeline along the moving direction, namely, in the rotating process of the feeding part, the pushing part can sequentially push the materials to be welded in the material receiving area to enter the inlet of the feeding pipeline, so that after the material receiving area is switched and the position of the feeding pipeline to be welded is switched, the pushing part can push different materials to be welded in the material receiving area to enter corresponding material pipelines, and in the welding process of multiple materials to be welded, the conveying pipelines corresponding to different materials to be welded are respectively controlled to move, the whole structure is simplified, the switching of the objects to be welded can be rapidly completed, the labor amount is reduced, and the requirement on the skill of an operator is low.

The second, rotate to the pipeline feeder that waits to weld the district and lie in between two storage pipeline's export on the horizontal direction, each promotion portion symmetry sets up in corresponding storage pipeline's the outside, so when making the pipeline feeder that waits to weld the position department switch, can make each promotion portion promote respectively from both sides and connect the material to weld on the material district, get into corresponding pipeline feeder, fully avoided two promotion portions to produce on setting up the position and interfere, guaranteed the flexibility that promotion portion removed.

Thirdly, the crater of the welding mechanism is right opposite to the edge of the object to be welded and is welded around the circumference of the object to be welded in a rotating mode, the rotating axis of the crater coincides with the outlet center of the feeding pipeline corresponding to the area to be welded, the feeding part rotates at every time, after the material receiving channel of the material storage pipeline is switched, the outlet center of the feeding pipeline coincides with the rotating shaft center of the crater, the circumferential welding of the object to be welded by the welding mechanism can be guaranteed, the circumferential motion of the welding mechanism does not need to be adjusted, and the arrangement of the whole device is simplified.

Fourthly, welding mechanism rotates to be connected on the storage portion, need not to set up other device that is used for installing welding mechanism on the one hand, avoids causing the influence in placing to the mother plate, and on the other hand can make things convenient for when follow-up carries out position control to the storage portion, and welding mechanism can remove along with the storage portion together, need not to carry out accurate regulation to welding mechanism again, has guaranteed the circumference welding effect of treating the weldment.

Fifthly, the welding mechanism is provided with an adjusting mechanism for adjusting the position of the weld crater along the radial direction relative to the object to be welded, the adjusting mechanism can finely adjust the welding mechanism according to different structures of the object to be welded, the circumferential welding of the welding mechanism is ensured to be matched with the objects to be welded with different structures and sizes, and the applicability of the welding mechanism is enhanced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic view of the overall structure;

FIG. 2 is an enlarged view of the feed conduit of FIG. 1;

FIG. 3 is a view showing the combination of the storing section and the feeding section;

FIG. 4 is a schematic view of a feeding pipeline with a small structure matched with an electric cylinder and a receiving area;

FIG. 5 is a schematic diagram of a feeding pipeline with a large structure matched with an electric cylinder and a receiving area;

the device comprises an equipment base, a 2-Y shaft, a 3-X shaft, a 4-Z shaft, a 5-welding mechanism, a 6-feeding pipeline, a 7-angle adjusting mechanism, an 8-material storage pipeline, a 9-working platform, a 10-stud, a 11-welding gun, a 12-electric cylinder, a 13-material storage pipeline outlet, a 14-feeding pipeline inlet, a 15-material storage part, a 16-feeding part and a 17-material receiving area, wherein the equipment base is arranged on the equipment base, and the material receiving area is arranged on the equipment base.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide an automatic material changing welding device and a welding method thereof, which are used for solving the problems in the prior art, a feeding part is eccentrically and rotatably connected to a material storage part, the outlet of each feeding pipeline can alternately correspond to a region to be welded on a base metal plate, each pushing part sequentially corresponds to a material receiving region and the inlet of each feeding pipeline along the moving direction of the pushing part, and the pushing part pushes the corresponding objects to be welded on the material receiving region into the corresponding inlets of the feeding pipelines, so that the switching of the objects to be welded can be rapidly completed, the labor amount is reduced, the technical requirements on operators are low, the manual operation is easy, the investment cost is low, and the welding device is suitable for batch production.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1 to 1, the present invention provides an automatic material changing welding device, which includes a material storage portion, a feeding portion 16 for centering a material to be welded on a base material plate, two material storage pipelines 8 and two feeding pipelines 6 adapted to different materials to be welded are respectively disposed in the material storage portion 15 and the feeding portion 16, for example, the material to be welded is a stud 10, two material storage channels adapted to studs 10 with different diameters are disposed in the material storage portion 15, the studs 10 are stacked in the material storage channels and are sequentially fed out downwards, two feeding channels adapted to the studs 10 with corresponding diameters are also disposed in the feeding portion 16, or the material storage pipeline 8 and the feeding pipelines 6 are respectively adapted to different functions and types of materials to be welded, and the preferred outlet of the feeding pipeline 6 is close to the base material plate, a part of the material to be welded is limited at the outlet of the feeding pipeline 6, and the other part of the material to be welded is contacted with the base material plate to complete centering of the material to be welded, and then the welding of waiting to treat the thing to feeding pipeline 6 and storage pipeline 8 are the pipeline of vertical extension to wait for the thing to treat such as double-screw bolt and carry out the landing. Moreover, the material storing part 15 and the material feeding part 16 are arranged above the base material plate at intervals from top to bottom, the width of the interval is matched with the height of a single object to be welded, so that in the blanking process, simultaneously, two objects to be welded fall down to cause failure of subsequent movement, one side of the material storage part 15, which is close to the material feeding part 16, is provided with an outlet of a material storage pipeline 8, one side of the material feeding part 16, which is close to the material storage part 15, is provided with an inlet of a material feeding pipeline 6 and a material receiving area 17 for receiving the falling material of the material storage pipeline outlet 13, each material storage pipeline outlet 13 is provided with a pushing part for pushing the objects to be welded into a material feeding pipeline inlet 14, preferably, the pushing part can adopt an electric cylinder 12 and the like, the electric cylinder 12 can control the stroke, a motor drives a lead screw to drive the inside, the end part of a preferred telescopic lead screw is provided with a push block, the objects to be welded are pushed by the push block to move the positions of the objects to be welded, and the pushing parts can be movably arranged at intervals; the feeding part 16 is eccentrically and rotationally connected to the material storing part 15, the outlet of each feeding pipeline 6 can alternately correspond to a region to be welded on the base metal plate, each pushing part sequentially corresponds to the material receiving region 17 and each feeding pipeline inlet 14 along the moving direction, a motor for driving the feeding part 16 to rotate is preferably arranged by the eccentric rotation of the feeding part 16, the motor is integrally arranged on the end surface of the material storing part 15 close to the feeding part 16, the motor shaft extends towards the feeding part and is connected to the corresponding rotating center of the feeding part 16, so that the material receiving region 17 can receive materials corresponding to different material storing pipelines 8, the pushing part sequentially corresponds to the material receiving region 17 and each feeding pipeline inlet 14 along the moving direction, namely, the pushing part can sequentially push the materials to be welded in the material receiving region 17 to enter the feeding pipeline inlets 14 in the rotating process of the feeding part 16, and further after the material receiving in the material receiving region 17 is switched and the position of the feeding pipeline 6 corresponding to the region to be welded is switched, can make the promotion portion can promote the material that treats that connects the material district 17 is different and get into corresponding material receiving pipeline, need not to carry out the multiple material that treats that the welding carries out the welding in-process, control respectively the difference treats that the corresponding pipeline of material carries out the displacement, simplified whole structure, and can accomplish fast and treat the switching of material, reduce the amount of labour and lower to operating personnel's technical requirement ratio.

In another preferred embodiment of the present invention, the feed lines 6 are distributed in the same circumferential direction and are wound around the rotation axis of the feed unit 16. The circumferential direction is a perfect circle, so that the circle centers of the feeding pipelines 6 are located on the same perfect circle when the feeding pipelines rotate, the discharge ports of the feeding pipelines 6 can be located at the same circle center near the welding mechanism 5 in the conversion process, the positions of the feeding pipelines and the welding mechanism 5 can be conveniently adjusted, the subsequent relative movement of the welding mechanism 5 is guaranteed, or the feeding pipelines and the welding mechanism are fixed, and the position relation between objects to be welded, such as the welding mechanism 5 and the stud 10, is guaranteed to be determined.

Wherein, rotate to the pipeline feeder 6 of treating the welding zone and lie in between two storage pipeline 8's export on the horizontal direction, each promotion portion symmetry sets up in corresponding storage pipeline 8's the outside, so when making the pipeline feeder 6 of treating welding zone position department switch, can make each promotion portion promote respectively from both sides and connect the material of treating on the material district 17, get into corresponding pipeline feeder 6, fully avoided two promotion portions to produce on setting up the position and interfere, guaranteed the flexibility that promotion portion removed.

Further, a welding mechanism 5 is arranged between the feeding part 16 and the base metal plate, the welding mechanism 5 comprises a welding gun 11, and the discharge ports of the feeding pipelines 6 can alternately approach the welding mechanism 5. And then be close to welding mechanism 5 through switching conveying pipeline 6 to make welding mechanism 5 can weld the thing of treating that switches over, only need not treat the structure of thing to welding mechanism 5 adaptation, go on the fine setting can, very big improvement the efficiency of adjusting before the welding. And conventional resistance welding is generally suitable for sheet metal welding, and in the application, mainly aiming at the welding of the back door of the special vehicle body, the objects to be welded are studs 10 and the like welded on the surface of the back door of the special vehicle body, the back door of the special vehicle body is usually made of high-strength steel plates, the thickness of the plates exceeds 5mm, the technical bottleneck exists in the conventional resistance welding, and the welding of the conventional resistance welding to the high-strength back plate is not firm. Therefore, the filler wire welding is adopted in the invention, and the connection between the object to be welded and the base metal plate is firmer by welding the contact edge between the object to be welded and the base metal plate.

As a preferred embodiment of the invention, the crater of the welding mechanism 5 is over against the edge of the object to be welded and rotates around the circumference of the object to be welded for welding, the rotation axis of the crater coincides with the outlet center of the feeding pipeline 6 corresponding to the area to be welded, so that the outlet center of the feeding pipeline 6 coincides with the rotating shaft center of the crater after the feeding part 16 rotates each time and the receiving passage of the storage pipeline 8 is switched, and thus the circumferential welding of the object to be welded by the welding mechanism 5 can be ensured, the circumferential motion of the welding mechanism 5 does not need to be adjusted, and the arrangement of the whole device is simplified. Because the connection between the special vehicle body back door and the stud 10 is preferably aimed at, the stud 10 is circumferentially welded through a welding machine mechanism, and the stud 10 and the vehicle door can be welded more firmly by welding a circle around the stud 10 by adopting wire filling welding.

Further, welding mechanism 5 rotates to be connected on storage portion 15, need not to set up additional device that is used for installing welding mechanism 5 on the one hand, avoids causing the influence in placing the base metal plate, and on the other hand can make things convenient for when follow-up carrying out position control to storage portion 15, welding mechanism 5 can remove along with storage portion 15 together, need not to carry out accurate regulation to welding mechanism 5 again, has guaranteed the circumference welding effect of treating the weldment.

Preferably, the welding mechanism 5 is provided with an adjusting mechanism for radially adjusting the position of the weld crater relative to the object to be welded, for example, a mode that a motor is matched with a swing arm is adopted, the swing arm is utilized to drive the welding mechanism 5 to move forwards or backwards, the adjusting mechanism can finely adjust the welding mechanism 5 according to different structures of the object to be welded, the circumferential welding of the welding mechanism 5 is ensured to be matched with the objects to be welded with different structures and sizes, and the applicability of the welding mechanism is enhanced.

Further, still include the displacement mechanism that is used for adjusting the relative parent metal plate position of storage portion 15, displacement mechanism includes the removal portion that can follow horizontal, horizontal vertical and vertical direction location storage portion 15 respectively. Preferably to facilitate the positioning of the magazine 15, a coordinate system is preferably established on the machine bed 1 for precise coordinate adjustment of the magazine 15, for example, X-axis 3 and Y-axis 2 guides in horizontal transverse and horizontal longitudinal directions, moving the moving part along X-axis 3 and Y-axis 2 guides, Z-axis 4 guides in vertical directions, and moving the moving part along Z-axis 4 guides. The preferred mode such as guide rail cooperation motor that removes adopts, the motor is connected with controlling means automatically controlled to its concrete position of real-time regulation. In the prior art, manual welding is low in efficiency, the welding effect is easily influenced by the environment, the welding precision consistency is poor, the utilization rate of robot welding equipment is low, the one-time investment is high in price, the equipment maintenance cost is high, the requirement on operation programmers is high, a large amount of adjustment work is needed for portable tube plate welding equipment, the time is wasted, and the working rhythm is unstable.

Preferably, the welding device further comprises a working platform 9 for bearing the base material plate and an equipment base 1 for installing the working platform 9, wherein an angle adjuster for adjusting the angle of the working platform 9 is arranged on the equipment base 1, and the working platform 9 drives the base material plate to adapt to the stud 10 through adjustment of the angle adjuster, so that a stable joint surface is formed, and the welding strength is ensured.

The welding method of the welding device with the automatic material changing function is further provided, and comprises the following steps:

storing materials: before the material storage pipeline 8 is placed into the material to be welded, each pushing part is moved to the corresponding outlet of the material storage pipeline 8, the outlet of the material storage pipeline 8 is blocked, the material to be welded is prevented from flowing out of the material storage pipeline 8, and after the blocking is finished, the material to be welded is placed in the corresponding material storage pipeline 8; positioning: before welding the objects to be welded, the moving part adjusts the material storage part 15 along the horizontal transverse direction, the horizontal longitudinal direction and the vertical direction, and after reaching a specified position, the material storage part 15 with the material conveying part 16 moves downwards until the lower plane of the objects to be welded is just close to the upper plane of the base metal plate; discharging: the feeding part 16 rotates to rotate the outlet center of the corresponding feeding pipeline 6 to a position which is overlapped with the circle center of the circular motion of the welding opening, the pushing part recovers until the object to be welded falls, then the pushing part pushes the object to be welded forwards and falls into the feeding pipeline 6, the object to be welded falls onto the base material plate through the feeding pipeline 6, and then the pushing part recovers and blocks the material storage pipeline 8; welding: the welding craters begin to rotate around the objects to be welded to complete the welding work; in the step of positioning, the angle regulator drives the working platform 9 to rotate, and the base metal plate is leveled relative to the object to be welded.

As a preferred embodiment of the present invention, in the connection between the special vehicle body back door and the stud 10, two studs 10 are used, and two storage pipelines 8 and two feeding pipelines 6 are provided, specifically, the feeding rotating shaft rotates to a position where the two feeding pipelines 6 are different from the two storage pipelines 8, so as to prevent the stud 10 in the storage pipeline 8 from being conveyed into the feeding pipeline 6. When welding first double-screw bolt 10, Y axle 2, X axle 3 and Z axle 4 cooperate together to fix a position, reach the assigned position after, Z axle 4 moves down to double-screw bolt 10 lower plane can just be close to the last plane of automobile body back door, and the pay-off rotation axis is rotatory to corresponding feeding pipe 6 and is communicated with storage pipeline 8. The stud 10 falls through the feed conduit 6 onto the back door of the vehicle body. The welding rotation axis rotates to the position nearest to the feeding pipeline 6, the feeding rotation axis drives the welding rotation axis to rotate together (because the welding rotation axis is attached to the feeding rotation axis, when the motor of the welding rotation axis does not work, the feeding rotation axis rotates to drive the welding rotation axis), the welding of the first stud 10 is completed, the second stud 10 is welded, the feeding pipeline 6 is switched, and the second stud 10 is pushed to the corresponding feeding pipeline 6. Specifically, when the stud 10 on the inclined surface is welded, the angle adjusting mechanism 77 horizontally rotates to drive the plane to rotate, so that the inclined surface of the base plate is changed into the plane. And repeating the steps, wherein the feeding rotating shaft rotates to the feeding pipeline 6 to be communicated with the material storage pipeline 8. The stud 10 falls through the feed conduit 6 onto the back door of the vehicle body. The welding rotating shaft rotates to the position nearest to the feeding pipeline 6, and the feeding rotating shaft drives the welding rotating shaft to rotate so as to realize welding.

The adaptation according to the actual needs is within the scope of the invention.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.