CN114505627A

CN114505627A - Auxiliary welding structure for assembly parts and assembly part welding machine

Info

Publication number: CN114505627A
Application number: CN202210183181.0A
Authority: CN
Inventors: 杨义; 曾勇; 杨延宇; 代维斯; 赵恒�
Original assignee: Hubei Engineering University
Current assignee: Hubei Engineering University
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-05-17

Abstract

The invention discloses an assembly auxiliary welding structure and an assembly welding machine, the assembly auxiliary welding structure comprises a supporting sleeve, a jacking component and a driving component, wherein the upper end surface of the supporting sleeve forms an installation surface which is used for fixedly placing a shell of an assembly, the lower end of the supporting sleeve is used for being fixed to the ground, the jacking component is positioned in an inner cavity of the supporting sleeve, the jacking component comprises an installation column and a plurality of connecting rod structures which are arranged on the periphery of the installation column at intervals along the circumferential direction, the lower end of each connecting rod structure is movably arranged on the installation column so that the upper end of each connecting rod structure has a movable stroke moving towards the center of the supporting sleeve, the upper end of each connecting rod structure is used for being installed on a corresponding cylinder, the lower end of the installation column is used for being fixed to the ground, and the driving component is positioned in the inner cavity of the supporting sleeve, for driving a plurality of said link structures to move in synchronism.

Description

Auxiliary welding structure for assembly parts and assembly part welding machine

Technical Field

The invention relates to the technical field of welding, in particular to an assembly part auxiliary welding structure and an assembly part welding machine.

Background

In the tailor-welding manufacturing flow of complicated spare part, need earlier make up a plurality of parts and then weld, this application is to an assembly welding's casing product, and this product comprises the casing that the surface was equipped with a plurality of through-holes and the drum of welded fastening in each through-hole, and present group is to welding the flow: the cylinders of the assembling parts are sleeved into the through holes corresponding to the shells of the assembling parts one by workers, then the assembling is completed through welding outside the cylinders, the relative position of the cylinders and the shells of the assembling parts cannot be guaranteed in the welding process, the problem of welding deformation easily occurs, and the cylinders need to be adjusted at any time.

Disclosure of Invention

The invention mainly aims to provide an assembly auxiliary welding structure and an assembly welding machine, aiming at enabling an assembly to be quickly assembled in the welding process, keeping the relative position in the welding process, improving the production efficiency and reducing the welding deformation.

To achieve the above object, the present invention provides an assembly auxiliary welding structure, including:

the upper end face of the supporting sleeve forms a mounting face, the mounting face is used for fixedly placing a shell of the assembly part, and the lower end of the supporting sleeve is used for being fixed to the ground;

the jacking assembly is positioned in the inner cavity of the supporting sleeve and comprises an installation column and a plurality of connecting rod structures arranged on the peripheral side of the installation column at intervals along the circumferential direction, the lower end of each connecting rod structure is movably installed on the installation column, so that the upper end of each connecting rod structure has a movable stroke moving towards the center of the supporting sleeve, the upper end of each connecting rod structure is used for installing a corresponding cylinder, and the lower end of the installation column is used for being fixed to the ground; and the number of the first and second groups,

and the driving assembly is positioned in the inner cavity of the supporting sleeve and is used for driving the connecting rod structures to synchronously move.

Optionally, each of the link structures includes:

the rocker frame comprises a first connecting rod and a second connecting rod which are arranged at intervals along the vertical direction, and a connecting rod which is connected with the upper ends of the first connecting rod and the second connecting rod, the length of the first connecting rod is less than that of the second connecting rod, and the lower ends of the first connecting rod and the second connecting rod are both hinged to the mounting column; and the number of the first and second groups,

the supporting piece is arranged on the connecting rod and used for sleeving and installing the corresponding cylinder;

the driving component drives the second connecting rods to move.

Optionally, the support comprises at least one first strut fixed to a mid-portion of the connecting rod and extending in a direction away from the mounting post.

Optionally, the support member includes two second support rods spaced apart from each other on the connecting rod, wherein one of the second support rods has a movable stroke approaching or departing from the other of the second support rods.

Optionally, each link structure still includes the connecting rod pillar, the lower extreme demountable installation of connecting rod pillar extremely on the erection column, the lower extreme of first connecting rod with the second connecting rod all articulated install in on the connecting rod pillar, it is a plurality of in the link structure a plurality of the connecting rod pillar is followed the circumference interval setting of erection column.

Optionally, the driving assembly includes a lifting sleeve movably sleeved on the outer surface of the mounting post in an up-down direction, and the lifting sleeve moves upward to contact with the plurality of connecting rod structures, so as to drive the plurality of connecting rod structures to swing synchronously.

Optionally, the drive assembly further comprises:

the driving motor is used for being fixedly installed on the ground and comprises a driving shaft extending along the radial direction of the supporting sleeve, two ends of the driving shaft extend out of a shell of the driving motor, and gears are arranged at two ends of the driving shaft; and the number of the first and second groups,

the two racks are arranged at the lower end of the lifting sleeve at intervals and are respectively meshed with the two gears.

Optionally, the driving assembly further includes a plurality of jacking blocks corresponding to the plurality of link structures, the plurality of jacking blocks are movably mounted to the upper end of the lifting sleeve in the radial direction, and an end surface of each jacking block facing the mounting column is in contact with the corresponding link structure.

Optionally, the welding-assisted structure for the assembly member further includes a plurality of pressing blocks disposed on the mounting surface and arranged at intervals in the circumferential direction of the support sleeve, and one end of each of the pressing blocks rotates along the vertical axis, so that the other end of each of the pressing blocks is used for pressing and holding the housing of the assembly member.

The invention also provides an assembly welding machine, which comprises the assembly auxiliary welding structure, wherein the assembly auxiliary welding structure at least comprises:

the upper end face of the supporting sleeve forms a mounting face, the mounting face is used for fixedly placing a shell of the assembly to be assembled, and the lower end of the supporting sleeve is used for being fixed to the ground;

In the technical scheme of the invention, the mounting column is fixed to the ground, the supporting sleeve is sleeved outside the mounting column and fixed to the ground, when in use, a plurality of cylinders are firstly mounted at the upper end of each connecting rod structure, then the shell cover is fixed to the mounting surface, an operator manually assists in preliminarily corresponding each cylinder and the corresponding through hole to enable the driving assembly to work so as to drive the upper ends of the plurality of connecting rod structures to swing towards the center of the supporting sleeve simultaneously, thereby driving each cylinder to be aligned with each through hole of the shell until the cylinders are assembled with the shell, at the moment, the driving assembly stops working, the plurality of connecting rod structures are kept in the current state, the whole assembly piece obtained after welding is removed, then the connecting rod structures are reset, and the positioning and mounting of the plurality of cylinders on the shell can be completed simultaneously, the welding process is more convenient, meanwhile, the relative position of the welding process and the welding position can be fixed, welding deformation is prevented, production efficiency is improved, operation personnel can complete the whole step, and labor cost is saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic perspective view of an assembly product provided by the present invention;

FIG. 2 is a perspective view of an embodiment of an assembly-aided welding structure provided in the present invention;

FIG. 3 is a schematic cross-sectional view taken along A-A of FIG. 2;

fig. 4 is a perspective view illustrating the connection rod structure and the jacking assembly in fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Auxiliary welding structure for assembly part	224	Connecting rod base column
1	Support sleeve	31	Lifting sleeve
				11	Mounting surface	32	Driving motor
21	Mounting post	321	Gear wheel
				22	Connecting rod structure	33	Rack bar
221	Rocker frame	34	Jacking block
				2211	First connecting rod	4	Compact block
2212	Second connecting rod	201	Shell body
				222	Connecting rod	202	Cylinder
223	Support piece

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

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.

It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In the tailor-welding manufacturing flow of complicated spare part, need earlier make up a plurality of parts and then weld, this application is to the casing product of an equipment dress spare, and this product comprises the casing that the surface was equipped with a plurality of through-holes and the drum of welded fastening in each through-hole, and present group is to welding the flow: the worker firstly sleeves the cylinders of the multiple assembly parts into the corresponding through holes of the shell one by one, then welding is completed outside the cylinders, the relative position of the cylinders of the assembly parts and the shell cannot be guaranteed in the welding process, the problem of welding deformation easily occurs, and adjustment is needed at any time.

In view of the above, the invention provides an assembly auxiliary welding structure and an assembly welding machine, aiming at enabling the assembly to be quickly assembled in the assembly welding process, maintaining the relative position in the welding process, improving the production efficiency and reducing the welding deformation. Fig. 2 to 4 show an embodiment of an assembly auxiliary welding structure provided by the present invention.

Referring to fig. 1, the assembly in this embodiment is formed by splicing a casing 201 and a plurality of cylinders 202, the casing 201 is semicircular, a plurality of through holes are formed through the outer surface of the casing 201, one end of each cylinder 202 is protruded to form an annular protrusion, the annular protrusion abuts against the inner wall surface of the casing 201, and the annular protrusion and the inner wall surface are welded correspondingly and provided with circular welding seams.

Referring to fig. 2 to 3, the assembly auxiliary welding structure 100 includes a support sleeve 1, a jacking component and a driving component, an upper end surface of the support sleeve 1 forms a mounting surface 11, the mounting surface 11 is used for fixedly placing a casing 201 of an assembly to be assembled, a lower end of the support sleeve 1 is used for fixing to the ground, the jacking component is located in an inner cavity of the support sleeve 1, the jacking component includes a mounting column 21 and a plurality of link structures 22 arranged on a circumferential side of the mounting column 21 at intervals along a circumferential direction, a lower end of each link structure 22 is movably mounted on the mounting column 21, so that an upper end of each link structure 22 has a movable stroke moving towards a center of the support sleeve 1, an upper end of each link structure 22 is used for mounting a corresponding cylinder 202, a lower end of the mounting column 21 is used for fixing to the ground, and the driving component is located in the inner cavity of the support sleeve 1, for driving a plurality of said link structures 22 in a synchronized movement.

In the technical scheme of the invention, the mounting column 21 is fixed to the ground, the supporting sleeve 1 is sleeved outside the mounting column 21 and fixed to the ground, when in use, the plurality of cylinders 202 are firstly mounted at the upper ends of the connecting rod structures 22, then the shell 201 is covered and fixed on the mounting surface 11, an operator manually assists to preliminarily correspond the cylinders 202 to the corresponding through holes, so that the driving component works to drive the upper ends of the connecting rod structures 22 to swing towards the center of the supporting sleeve 1 at the same time, so as to drive the cylinders to be aligned with the through holes of the shell 201 until the cylinders are completely assembled with the shell 201, at this time, the driving component stops working, the plurality of connecting rod structures 22 are kept in the current state, the obtained assembly is integrally detached after welding is completed, and then the connecting rod structures 22 are reset, so set, the positioning and installation of the plurality of cylinders 202 on the shell 201 can be completed simultaneously, the operation is more convenient and fast, the relative positions of the cylinders and the shell are fixed in the welding process, welding deformation is prevented, the production efficiency is improved, one operator can complete the whole step, and the labor cost is saved.

In order to provide the link structures 22 with a stable structure, in an embodiment, referring to fig. 4, each link structure 22 includes a rocker frame 221 and a support 223, the rocker frame 221 includes a first link 2211 and a second link 2212 arranged at intervals in the up-down direction, and a link 222 connecting upper ends of the first link 2211 and the second link 2212, a length of the first link 2211 is smaller than a length of the second link 2212, lower ends of the first link 2211 and the second link 2212 are both hinged to the mounting post 21, and the support 223 is arranged on the link 222 for the corresponding cylinder 202 to be sleeved and mounted. The first link 2211, the second link 2212 and the link 222 form a stable quadrilateral structure on the mounting post 21, each joint is hinged, the cylinders 202 are sleeved on the corresponding support members 223, when the driving assembly drives each second link 2212 to swing upwards, because the length of the second link 2212 is greater than that of the corresponding first link 2211, on the basis of the quadrilateral structure, the first link 2211 and the link 222 swing synchronously along with the swing of the second link 2212, so that the support members 223 generate displacement of an arc track, and the link structure 22 has good stability and is not easy to deform due to the mutual constraint of the parts. It should be noted that a triangular or linear link form can be designed, and will not be described in detail here.

The invention is not limited to the specific form of the supporting member 223, and in one embodiment, the supporting member 223 includes at least one first supporting rod fixed to the middle of the connecting rod 222 and extending in a direction away from the mounting post 21. Under this structure, first support position mounting, only need with drum 202 hang put the installation can, can rely on the manual work to carry out preliminary location of just putting, simple structure, the processing of being convenient for.

In another embodiment, the supporting member 223 comprises two second supporting rods spaced apart from each other on the connecting rod 222, wherein one of the second supporting rods has a moving stroke close to or far away from the other second supporting rod. Under this structure, drum 202 is through two second branch supports jointly, compares in the stability of single branch's structure more, is difficult to rock, simultaneously, because two interval between the second branch is adjustable to can adapt to not unidimensional drum 202 structure, the flexibility is stronger, and the commonality is better. It should be noted that, in this embodiment, the movement manner of the second support bar is not limited, and the second support bar may be matched with the slide block through a slide rail, or may be matched with the screw through a long hole, which is not described in detail herein.

Further, each of the link structures 22 further includes a link base 224, the link base 224 extends in an up-down direction, a lower end of the link base 224 is detachably mounted on the mounting column 21, lower ends of the first link 2211 and the second link 2212 are both hinged to the link base 224, and a plurality of the link bases 224 in the plurality of link structures 22 are arranged at intervals in a circumferential direction of the mounting column 21. Correspondingly, in this embodiment, three cylinders 202 are correspondingly installed on the housing 201, and three corresponding connecting rod structures 22 are provided, because of the detachable design of the connecting rod base 224, the quadrilateral structure formed by the connecting rod base 224, the first connecting rod 2211, the second connecting rod 2212 and the connecting rod 222 can be integrally detached, and is assembled separately and then integrally assembled, so that the assembly and the fixation are facilitated. And the smaller sized link base post 224 is more easily hingedly mounted than the cylindrical mounting post 21.

Furthermore, the connecting plate 222 is U-shaped, the first connecting rod 2211 and the second connecting rod 2212 are hinged in the groove, and in order to fit the arc-shaped wall surface of the housing 201, the connecting plate 222 may actually be an arc-shaped plate, or the end surface of the connecting plate 222 facing the housing 201 is arc-shaped, so as to have a better fitting effect when abutting against the tight fitting, or the end surface of the connecting plate 222 facing the housing is covered with a rubber pad, so as to perform shape self-adaptation, and the rubber pad allows proper extrusion deformation, so that the fitting effect is better.

In order to achieve the synchronous driving function of the driving assembly, in an embodiment, a plurality of cylinders which run synchronously may be configured to perform a linear motion, so as to drive the second connecting rod 2212 to swing, in this embodiment, the driving assembly includes a lifting sleeve 31, the lifting sleeve 31 is movably sleeved on the outer surface of the mounting column 21 in an up-down direction, and the lifting sleeve 31 moves upwards to contact with the plurality of connecting rod structures 22, so as to drive the plurality of connecting rod structures 22 to swing synchronously. Lifting sleeve 31 cover is established a plurality of the outside of second connecting rod 2212, lifting sleeve 31's inner wall upper end edge is with a plurality of second connecting rod 2212 offsets, works as lifting sleeve 31 is upwards, and is a plurality of second connecting rod 2212 to the central direction swing of erection column 21 works as lifting sleeve 31 is downwards, and it is a plurality of to drive second connecting rod 2212 is reverse to reply, so sets up simple structure, and the synchronism is good.

Further, in order to drive the lifting sleeve 31 to move linearly up and down, in an embodiment, the driving assembly further includes a driving motor 32 and two racks 33, the driving motor 32 is used for being fixedly mounted to the ground, the driving motor 32 includes a driving shaft extending along the radial direction of the supporting sleeve 1, two ends of the driving shaft both extend out of the housing 201 of the driving motor 32, two ends of the driving shaft both are provided with gears 321, the two racks 33 are disposed at the lower end of the lifting sleeve 31 at intervals, and the two racks 33 are respectively engaged with the two gears 321. The driving shaft rotates, the two gears 321 and the two racks 33 generate relative motion, and since the driving motor 32 is fixed, the two racks 33 move to drive the lifting sleeve 31 to move up and down, in other embodiments, a lifting cylinder or an electric push rod may be further designed to push the lifting sleeve 31 to move, which will not be described in detail herein.

It can be understood that a guiding structure with a sliding block and a sliding groove can be designed between the lifting sleeve 31 and the mounting post 21, so as to ensure the stability of the lifting sleeve 31 in lifting, and meanwhile, the driving motor 32 is fixed with the mounting post 21 through a corresponding motor base and is mounted on the ground, so that the coaxial effect of the lifting sleeve 31 and the mounting post 21 should be ensured.

In consideration of the processing error of the cylinders 202 and the housing 201, when the cylinders 202 and the housing 201 are assembled in a group, the matching relationship between the cylinders 202 and the through holes is different, and the thickness of the housing 201 is not uniform, that is, in this structure, the corresponding connecting rods 222 and the housing 201 have a matching difference in angle, therefore, in this embodiment, the driving assembly further includes a plurality of jacking blocks 34 corresponding to the plurality of connecting rod structures 22, the plurality of jacking blocks 34 are movably installed to the upper end of the lifting sleeve 31 in the radial direction, and the end surface of each jacking block 34 facing the mounting column 21 is in contact with the corresponding connecting rod structure 22. The relative position of each jacking block 34 with respect to the lifting sleeve 31 is adjustable, that is, a plurality of jacking blocks 34 are designed to be located on different circumferences according to actual conditions, so that when the lifting sleeve 31 moves, the jacking blocks 34 at different positions sequentially contact with the corresponding second connecting rods 2212, and the distance that the jacking blocks 34 closer to the center of the lifting sleeve 31 drive the second connecting rods 2212 to swing is longer, so that different pressing and positioning requirements of each cylinder 202 caused by uneven wall thickness during processing of the shell 201 can be met.

In order to ensure the relative position of the casing 201 during the welding process, in an embodiment, the casing 201 is locked on the mounting surface 11 by screws, in this embodiment, the welding structure 100 for assisting assembly further includes a plurality of pressing blocks 4 disposed on the mounting surface 11 and arranged at intervals along the circumferential direction of the support sleeve 1, and one end of each pressing block 4 rotates along the vertical axis, so that the other end is used for pressing and holding the casing 201 of the assembly. Specifically, initially, the end portions of the pressing blocks 4 swing outward, the shells 201 are installed without contacting each other, and then the pressing blocks 4 are manually rotated until the pressing blocks 4 are located at the upper ends of the edges of the shells 201 and are pressed, so that the matching is completed. It should be noted that, in this structure, the pressing block 4 is step-shaped, an end portion of the rotational connection is attached to the mounting surface 11, and a height difference exists between the other end portion and the mounting surface 11, where the height difference is an edge thickness of the housing 201, in another embodiment, the pressing block 4 may be designed to be a strip-shaped plate, and the pressing block is rotationally mounted by a screw, and a certain distance exists between a nut of the screw and the mounting surface 11, so that the pressing block 4 may be lifted up at the end portion to press the housing 201 in an inclined state, or lifted up to press the housing 201 in a horizontal state as a whole.

In this embodiment, the specific working steps are as follows:

a production preparation stage: firstly, installing the three cylinders 202 through the primary positioning sleeves of the first supporting rods;

in the working process: the driving motor 32 is started, the two gear wheels 321 drive the two gear racks 33 to ascend, so as to drive the lifting sleeve 31 to move upwards, finally the three jacking blocks 34 move upwards to apply force to extrude the three second connecting rods 2212, the three connecting rod structures 22 start to swing under the driving of the respective longer second connecting rods 2212, finally the connecting rod 222 drives the cylinder 202 placed on the connecting rod to extend out of the through hole corresponding to the shell 201, the force is continuously applied to enable the connecting rod 222 to be tightly jacked with the inner wall of the shell 201, and thus, the pairing and matching are completed, and the welding work can be performed.

The invention also provides an assembly welding machine, which comprises the assembly auxiliary welding structure 100, wherein the assembly welding machine comprises all the technical characteristics of the assembly auxiliary welding structure 100, so that the assembly welding machine also has the technical effects brought by all the technical characteristics, and the details are not repeated herein.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An assembly assist welding structure, comprising:

the jacking assembly is positioned in the inner cavity of the supporting sleeve and comprises a mounting column and a plurality of connecting rod structures arranged on the peripheral side of the mounting column at intervals along the circumferential direction, the lower end of each connecting rod structure is movably mounted on the mounting column so that the upper end of each connecting rod structure has a movable stroke moving towards the center of the supporting sleeve, the upper end of each connecting rod structure is used for mounting a cylinder of a corresponding assembly piece, and the lower end of the mounting column is used for being fixed to the ground; and the number of the first and second groups,

2. An assembly assist welding structure as set forth in claim 1, wherein each of said link structures comprises:

the driving component drives the second connecting rods to move.

3. An assembly assist welding structure as set forth in claim 2 wherein said support member includes at least one first leg fixed to a middle portion of said connecting rod and extending in a direction away from said mounting post.

4. An assembly assist welding structure as set forth in claim 2, wherein said support member includes two second support bars provided at intervals on said connecting bar, wherein one of said second support bars has a movable stroke toward or away from the other of said second support bars.

5. The assembly-assist welding structure according to claim 2, wherein each of the link structures further includes a link base, a lower end of the link base being detachably mounted to the mounting post, lower ends of the first link and the second link being each hingedly mounted to the link base, a plurality of the link bases of the plurality of the link structures being arranged at intervals in a circumferential direction of the mounting post.

6. The welding-assisted assembly structure of claim 1, wherein the driving assembly comprises a lifting sleeve movably sleeved on the outer surface of the mounting post in an up-and-down direction, and the lifting sleeve moves upward to contact with the plurality of link structures, thereby driving the plurality of link structures to swing synchronously.

7. The assembly assist welding structure of claim 6, wherein the driving assembly further comprises:

8. The assembly assist welding structure of claim 6, wherein the driving assembly further comprises a plurality of lift blocks corresponding to the plurality of link structures, the plurality of lift blocks being movably mounted to an upper end of the lifting sleeve in a radial direction, an end surface of each lift block facing the mounting post being in contact with the corresponding link structure.

9. An assembly auxiliary welding structure according to claim 1, further comprising a plurality of pressing blocks provided on the mounting surface and arranged at intervals in a circumferential direction of the support sleeve, wherein one end of each of the pressing blocks is rotated along an up-down axis so that the other end is used for pressing and holding the housing.

10. An assembly welding machine comprising an assembly auxiliary welding structure according to any one of claims 1 to 9.