CN217167091U

CN217167091U - Positioning welding device for suspension arm assembly

Info

Publication number: CN217167091U
Application number: CN202220161432.0U
Authority: CN
Inventors: 周鲜平; 陈小青; 刘玮
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2022-08-12
Anticipated expiration: 2032-01-20

Abstract

The utility model provides a davit assembly positioning welding device, this davit assembly positioning welding device include davit barrel positioning mechanism and fitting piece positioning mechanism. The boom cylinder positioning mechanism is formed with a clamping area for clamping the periphery of the boom cylinder and is capable of defining the axial position of the boom cylinder. The matching piece positioning mechanism comprises a horizontal adjusting component and a height adjusting component which are longitudinally arranged, the horizontal adjusting component is used for adjusting the longitudinal position of the matching piece, the height adjusting component bears the horizontal adjusting component and is used for driving the horizontal adjusting component to ascend and descend, and the height adjusting component and the horizontal adjusting component are matched and matched to enable the matching piece and the suspension arm cylinder body to be welded in a matching mode. This scheme adopts davit barrel positioning mechanism and fitting member positioning mechanism to realize the automatic positioning welding of davit barrel and fitting member, has not only reduced the dependence to welder's skill level, has reduced the demand to personnel's quantity, and positioning accuracy is high moreover, and product quality's uniformity is better.

Description

Positioning welding device for suspension arm assembly

Technical Field

The utility model belongs to the technical field of davit barrel welds, especially, relate to a davit assembly fixed-position welding device.

Background

The suspension arm of the automobile crane is a key component of the whole product, positioning welding of a suspension arm assembly is particularly important in the manufacturing process of the suspension arm, and the positioning welding of the assembly comprises positioning welding of the tail part of the suspension arm, an oil cylinder support and a suspension arm cylinder body. The existing positioning welding of the suspension arm assembly adopts manual operation, the assembly positioning efficiency is not high, and the positioning precision seriously depends on the skill level of an operator. However, the assembly tack welding and the welding related welding seams are key welding seams of products, and the positioning precision directly influences the processing and production efficiency and product performance of subsequent processes, so that the search for a new tack welding mode is an important way for improving the efficiency and the quality. In the prior art, the distance needs to be manually measured and then the alignment and positioning are carried out, and the suspension arm is longer and has large measurement error, so that the alignment and positioning are easy to be skewed, the machining allowance is insufficient in the subsequent post-welding machining of the oil cylinder support, and the condition of needing rework often occurs.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a davit assembly positioning welds device aims at solving the positioning that prior art is welded the technical problem that the device precision is poor and inefficiency.

In order to realize the above-mentioned purpose, the utility model provides a davit assembly fixed-position welding device, this davit assembly fixed-position welding device includes:

the suspension arm cylinder positioning mechanism is provided with a clamping area for clamping the periphery of the suspension arm cylinder and can limit the axial position of the suspension arm cylinder; and

the matching piece positioning mechanism comprises a horizontal adjusting assembly and a height adjusting assembly which are longitudinally arranged, the horizontal adjusting assembly is used for adjusting the longitudinal position of the matching piece, the height adjusting assembly bears the horizontal adjusting assembly and is used for driving the horizontal adjusting assembly to ascend and descend, and the height adjusting assembly and the horizontal adjusting assembly are matched and matched to enable the matching piece and the suspension arm cylinder to be matched and welded.

In an embodiment of the present invention, the horizontal adjustment assembly includes two telescopic members and a first driving member, the two telescopic members are longitudinally spaced apart from each other, and the first driving member is used for driving the two telescopic members to longitudinally extend and retract so as to clamp or release the mating member; the height adjusting assembly comprises two lead screws and a second driving piece which are arranged at intervals in the longitudinal direction, the lead screws extend along the height direction, the lead screws are sleeved with mounting seats, the second driving piece is used for driving the lead screws to rotate and driving the mounting seats to move along the extending direction of the lead screws, and one ends of the mounting seats extend out and are connected with the telescopic pieces.

The embodiment of the utility model provides an in, the tight piece of clamp is installed to the drive end of extensible member, set up on the fitting piece with the axle sleeve hole of tight piece adaptation of clamp, the central axis of the tight piece of clamp and the central axis in axle sleeve hole are located same vertical straight line.

The embodiment of the utility model provides an in, the fitting piece be with the tip complex part of davit barrel, davit assembly positioning welding device still including can promote the lazy arm barrel and the fitting piece relative movement and the pushing mechanism who docks.

The embodiment of the utility model provides an in, pushing mechanism includes two promotion pieces that can linear movement, and two promote the piece respectively in opposite directions promote the tip of davit barrel and fitting piece.

The embodiment of the utility model provides an in, the fitting piece be with the tip complex part of davit barrel, davit assembly positioning welding device still including can follow the crossbeam that the direction of height removed, is equipped with the pinch-off blades that are used for the centre gripping fitting piece on the crossbeam.

The embodiment of the utility model provides an in, davit assembly positioning welding device still includes work platform, is equipped with the slide rail on the work platform, and fitting piece positioning mechanism and pushing mechanism can follow the slide rail and slide.

The embodiment of the utility model provides an in, davit barrel positioning mechanism's quantity is a plurality of and interval arrangement.

The embodiment of the utility model provides an in, work platform upper berth is equipped with the roll table that is used for carrying the davit barrel along length direction.

The embodiment of the utility model provides an in, the davit barrel is the davit barrel, the fitting piece be with davit barrel complex davit afterbody and hydro-cylinder support, fitting piece positioning mechanism is two sets of, wherein a set of davit afterbody that is used for fixing a position, another group is used for fixing a position the hydro-cylinder support.

Through the technical scheme, the embodiment of the utility model provides a davit assembly positioning welding device has following beneficial effect:

when the boom assembly is subjected to tack welding, the boom barrel body which is not welded with a matching piece is firstly placed into a clamping area of the boom barrel body positioning mechanism, and the boom barrel body is clamped by the reduction of the clamping area to position the boom barrel body to a preset position for fixing. After the davit barrel is fixed a position, fix the fitting piece on horizontal adjusting assembly, horizontal adjusting assembly adjusts the longitudinal position of fitting piece and fixes to predetermined position, then height adjusting assembly passes through the lift of drive horizontal adjusting assembly to the height of the last fixed fitting piece of adjustment horizontal adjusting assembly, after the longitudinal position and the height position of fitting piece all fix a position, thereby make the fitting piece remove to predetermined mounted position with fitting piece positioning mechanism lateral shifting fitting piece, the location of fitting piece is accomplished. And finally, welding the well-positioned matching piece and the suspension arm cylinder body to complete the positioning welding. The automatic positioning welding of the suspension arm cylinder body and the matched piece is realized, the dependence on the skill level of a welder is reduced, the requirement on the number of personnel is reduced, the positioning precision is high, and the consistency of the product quality is better.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide an understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention, but do not constitute a limitation of the invention. In the drawings:

fig. 1 is a schematic structural view of a positioning welding device for a boom assembly according to an embodiment of the present invention;

fig. 2 is a schematic structural view of another view of the boom assembly tack welding apparatus according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a fitting member positioning mechanism according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a fitting positioning mechanism according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a boom cylinder positioning mechanism according to an embodiment of the present invention.

Description of the reference numerals

Reference numerals	Name(s)	Reference numerals	Name (R)
				10	Suspension arm cylinder positioning mechanism	213	Clamping block
11	Clamping area	20	Fitting piece positioning mechanism
				21	Level adjusting assembly	30	Pushing block
22	Height adjusting assembly	40	Cross beam
				211	Telescopic part	50	Working platform
12	Clamping jaw	51	Sliding rail
				221	Screw mandrel	52	Roller bed
222	Second driving member	61	Davit barrel
				62	Boom tail	63	Oil cylinder support
621	Axle sleeve hole	214	Mounting seat

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present invention.

The boom assembly tack welding apparatus according to the present invention is described below with reference to the drawings.

As shown in fig. 1, in an embodiment of the present invention, a boom assembly tack welding device is provided, which includes a boom cylinder positioning mechanism 10 and a mating member positioning mechanism 20. The boom cylinder positioning mechanism 10 is formed with a clamping area 11 for clamping the outer periphery of the boom cylinder and is capable of defining the axial position of the boom cylinder. The fitting positioning mechanism 20 comprises a horizontal adjusting assembly 21 and a height adjusting assembly 22 which are longitudinally arranged, wherein the horizontal adjusting assembly 21 is used for adjusting the longitudinal position of the fitting, the height adjusting assembly 22 is used for bearing the horizontal adjusting assembly 21 and driving the horizontal adjusting assembly 21 to ascend and descend, and the height adjusting assembly 22 and the horizontal adjusting assembly 21 are matched and act to enable the fitting and the suspension arm cylinder to be matched and welded.

The utility model discloses a davit assembly positioning welding device is used for welding the fitting piece on the preset position of davit barrel, when starting to work, puts into the centre gripping region 11 of davit barrel positioning mechanism as shown in figure 5 first, grips the davit barrel from both sides through centre gripping region 11, and then fixes a position to preset position with the davit barrel; after the boom cylinder is positioned, the horizontal adjusting component 21 adjusts the plane position of the matching piece to a preset position and fixes the plane position, so that the plane position of the matching piece is positioned; the height adjustment assembly 22 then adjusts the height of the mating member fixed to the horizontal adjustment assembly 21 by driving the horizontal adjustment assembly 21 to ascend and descend, thereby positioning the height of the mating member to a preset position. After the plane position and the height position of the matching piece are positioned, the matching piece and the suspension arm cylinder body are welded together to complete the positioning welding of the suspension arm cylinder body and the matching piece. The automatic positioning welding of davit barrel and fitting piece can be realized to this scheme, has not only reduced the dependency to welder's skill level, has reduced the demand to personnel's quantity, and positioning accuracy is high moreover, and product quality's uniformity is better, can also satisfy the production demand of multiple product.

In the embodiment of the present invention, as shown in fig. 3 and 4, the horizontal adjustment assembly 21 includes two telescopic members 211 arranged at intervals along the longitudinal direction and a first driving member for driving the two telescopic members 211 to be longitudinally telescopic to clamp or release the mating member; the height adjusting assembly 22 comprises two screw rods 221 arranged at intervals along the longitudinal direction and a second driving piece 222 used for driving the screw rods 221 to stretch and retract along the height direction, and the telescopic piece 211 is fixedly arranged at the driving end of the screw rod 221 through the mounting base 214. Here, the longitudinal direction refers to the front-rear direction in fig. 2, the lateral direction refers to the left-right direction in fig. 2, and the height direction refers to the up-down direction in fig. 1.

The first and second driving members 222 are preferably motors. The telescopic piece can be a cylinder or an oil cylinder. The matching pieces are positioned between the two telescopic pieces 211 which are longitudinally arranged at intervals, when the matching pieces need to be positioned, the first driving piece drives the piston rods in the air cylinders or the oil cylinders to extend out of the cylinder body and move towards the matching pieces along the longitudinal direction until the piston rods on the two sides clamp the matching pieces at the preset position in the middle, and at the moment, the longitudinal positioning of the matching pieces is finished; when the telescopic member 211 clamps the mating member, the second driving member 222 drives the screw rod 221 to rotate, the mounting seat 214 is sleeved on the screw rod 221, and when the screw rod 221 rotates, the mounting seat 214 can move along the extending direction of the screw rod 221, that is, along the height direction, under the driving of the rotation of the screw rod 221; since one end of the mounting base 214 extends from the rod body of the screw rod 221 and is connected with the telescopic part 211, when the mounting base 214 moves in the height direction, the telescopic part 211 can be driven to ascend or descend; and, since the telescopic member 211 clamps the mating member, the height position of the mating member can be adjusted during the process of raising or lowering the telescopic member 211 to reach the preset point, thereby achieving the height positioning of the mating member.

In the embodiment of the present invention, the clamping block 213 is installed at the driving end of the telescopic member 211, the shaft sleeve hole 621 matching with the clamping block 213 is provided on the mating member, and the central axis of the clamping block 213 and the central axis of the shaft sleeve hole 621 are located on the same vertical straight line.

When the first driving piece drives the piston rod of the cylinder or the oil cylinder to extend out of the cylinder body, so as to drive the clamping block to move towards the direction of the mating piece, so as to clamp two sides of the mating piece, after clamping, the clamping block is clamped into the shaft sleeve hole, so as to complete positioning, and the clamping block can not be separated from the mating piece in the welding process, the clamping block 213 which can move relatively on the two mounting bases 214 is inserted into the shaft sleeve hole 621 of the oil cylinder support 63 or the suspension arm tail part 62, so as to longitudinally position the oil cylinder support 63 or the suspension arm tail part 62, and then the mounting bases 214 are operated to move, so as to move the oil cylinder support 63 or the suspension arm tail part 62 to a preset height.

The embodiment of the utility model provides an in, davit assembly fixed position welding device is still including promoting the pushing mechanism of davit barrel and fitting piece relative movement and butt joint, and pushing mechanism includes two promotion pieces 30 that can linear movement, and two promotion pieces 30 promote the tip of davit barrel and fitting piece respectively in opposite directions. When the matching piece needs to be matched with the transverse end part of the suspension arm cylinder body, after the height direction and the longitudinal position of the matching piece are well positioned, the matching piece can be butted with the transverse end part of the suspension arm cylinder body through a pushing mechanism, as shown in fig. 2, the matching piece is arranged at the left end part of the suspension arm cylinder body, the pushing mechanisms are respectively arranged at the left side of the matching piece and the right side of the suspension arm cylinder body, the pushing mechanism at the left side moves rightwards, and a pushing block 30 at the left side pushes the matching piece to the right side; the pushing mechanism on the right moves leftwards, so that the pushing block 30 on the right pushes the suspension arm cylinder leftwards, and finally the matching piece is butted to the left end of the suspension arm cylinder, and an operator can weld the suspension arm cylinder.

Preferably, the cross beam 40 is disposed at the top ends of the two fitting piece positioning mechanisms 20 and is used for connecting the two lead screws 221, as shown in fig. 4, after the cross beam 40 connects the two lead screws 221, the cross beam 40, the height adjusting assemblies 22 at the two sides, and the working platform 50 enclose a rectangular structure, which enhances the stability of the fitting piece positioning mechanisms 20 mounted on the working platform 50 while ensuring the synchronous motion of the fitting piece positioning mechanisms 20 at the front and rear sides on the working platform 50.

The embodiment of the utility model provides an in, davit assembly positioning welding device still includes work platform 50, is equipped with slide rail 51 along length direction on work platform 50, and fitting piece positioning mechanism 20 and pushing mechanism can slide along slide rail 51 to make fitting piece positioning mechanism 20 and pushing mechanism can drive the transverse position location of the completion fitting piece of fitting piece on work platform 50 removal.

The embodiment of the utility model provides an in, the quantity of davit barrel positioning mechanism 10 is not restricted to one, can increase the quantity of davit barrel positioning mechanism 10 as required, makes the fixed more stable of davit barrel, thereby prevents to take place position deviation at welded in-process davit barrel and influences welded quality.

In the embodiment of the present invention, in order to facilitate the transportation of the boom cylinder on the working platform 50, the roller table 52 for conveying the boom cylinder along the length direction is laid on the working platform 50.

In the embodiment of the present invention, the fitting member is the boom tail 62 and the cylinder support 63 which are fitted with the boom cylinder 61, the boom tail 62 and the cylinder support 63 can be assembled into a complete boom, the fitting member positioning mechanism 20 is two sets, one set is used for positioning the boom tail 62, and the other set is used for positioning the cylinder support 63.

When the boom cylinder body 61, the boom tail 62 and the oil cylinder support 63 are subjected to positioning welding, the specific positioning welding process is as follows:

firstly, a suspension arm cylinder 61 is placed on a roller way 52, the suspension arm cylinder 61 is transported to a preset position through the roller way 52 and is placed in a clamping area of a suspension arm cylinder positioning mechanism 10, the suspension arm cylinder positioning mechanism 10 further comprises a driving piece for driving two clamping jaws 12 in the clamping area to move, and when positioning is carried out, the driving piece drives the clamping jaws 12 on two sides to move so as to clamp and fix two sides of the suspension arm cylinder 61, and the suspension arm cylinder 61 is positioned to the preset position;

then, the boom tail 62 and the cylinder support 63 are positioned at the same time, the first driving element drives the telescopic elements 211 to extend outwards, the clamping blocks 213 at the ends of the two telescopic elements 211 are inserted into the cylinder support 63 or the sleeve hole 621 of the boom tail 62, so that the horizontal adjusting assembly 21 completes the longitudinal positioning of the cylinder support 63 and the boom tail 62, then the second driving element 222 is used for operating the screw rod 221 to rotate, so as to drive the mounting seat 214 to move along the height direction, the horizontal adjusting assembly 21 on the mounting seat 214 moves the cylinder support 63 or the boom tail 62 to a preset height, so that the boom tail 62 and the cylinder support 63 are positioned to a preset position, and the boom tail 62 and the cylinder support 63 are positioned at the same time, so that the integral positioning effect is improved;

and finally, welding the tail part 62 of the suspension arm and the joint of the oil cylinder support 63 and the suspension arm cylinder body 61 respectively to obtain a complete suspension arm structure.

After the operation is finished, the first driving element drives the telescopic pieces 211 to retract inwards, the clamping blocks 213 in the shaft sleeve holes 621 inserted into the end parts of the two telescopic pieces 211 are pulled out, the clamping jaws 12 move towards two sides to loosen the boom cylinder 61, so that the limiting of the boom cylinder positioning mechanism 10 and the matching piece positioning mechanism 20 on the boom is released, and the welded boom can be transported through a roller way.

The automatic positioning welding mode has the advantages of high positioning precision and good consistency of product quality; the tail part 62 of the suspension arm and the oil cylinder support 63 are positioned simultaneously, so that the positioning efficiency is high; the tool has good universality, and can meet the production requirements of various products and other beneficial effects.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a davit assembly tack welding device which characterized in that, davit assembly tack welding device includes:

the boom cylinder positioning mechanism (10) is provided with a clamping area (11) for clamping the periphery of the boom cylinder and can limit the axial position of the boom cylinder; and

the matching piece positioning mechanism (20) comprises a horizontal adjusting assembly (21) and a height adjusting assembly (22) which are longitudinally arranged, wherein the horizontal adjusting assembly (21) is used for adjusting the plane position of the matching piece of the suspension arm cylinder, the height adjusting assembly (22) bears the horizontal adjusting assembly (21) and is used for driving the horizontal adjusting assembly (21) to ascend and descend, and the height adjusting assembly (22) and the horizontal adjusting assembly (21) are matched and used for enabling the matching piece and the suspension arm cylinder to be matched and welded.

2. A boom assembly tack welding apparatus as claimed in claim 1, wherein said leveling assembly (21) comprises two telescoping members (211) arranged at a longitudinal interval and a first drive member for driving the two telescoping members (211) to telescope longitudinally to clamp or release the mating member; the height adjusting assembly (22) comprises two screw rods (221) and a second driving piece (222), the two screw rods (221) and the second driving piece (222) are arranged at intervals in the longitudinal direction, the screw rods (221) extend in the height direction and are sleeved with mounting seats (214), the second driving piece (222) is used for driving the screw rods (221) to rotate and driving the mounting seats (214) to move in the extending direction of the screw rods (221), and one ends of the mounting seats (214) extend out and are connected with the telescopic pieces (211).

3. The positioning welding device for the boom assembly of claim 2, wherein a clamping block (213) is installed at the driving end of the telescopic member (211), a shaft sleeve hole (621) matched with the clamping block (213) is formed in the matching member, and the central axis of the clamping block (213) and the central axis of the shaft sleeve hole (621) are located on the same longitudinal straight line.

4. The boom assembly tack welding apparatus of claim 3, wherein the mating member is a component that mates with an end of the boom cylinder, the boom cylinder tack welding apparatus further comprising a pushing mechanism that can push the boom cylinder and the mating member to move relative to each other and to abut each other.

5. The boom assembly tack welding device of claim 4, wherein the pushing mechanism comprises two linearly movable pushing blocks (30), the two pushing blocks (30) pushing the ends of the boom cylinder and the mating piece, respectively, towards each other.

6. The boom assembly tack welding device of claim 3, further comprising a beam (40) movable in a height direction, the beam (40) being for tack welding two of the lead screws (221).

7. The boom assembly tack welding device of claim 4, further comprising a work platform (50), wherein the work platform (50) is provided with a slide rail (51), and the mating member positioning mechanism (20) and the pushing mechanism can slide along the slide rail (51).

8. The boom assembly tack welding apparatus of claim 7, characterized in that the boom cylinder positioning mechanism (10) is plural in number and arranged at intervals.

9. The tack welding device of the boom assembly of claim 8, characterized in that a roller table (52) for transporting the boom cylinder in a length direction is laid on the working platform (50).

10. The tack welding apparatus of claim 9, wherein the mating members are a boom tail (62) and a cylinder mount (63) that mate with the boom barrel (61), and the mating member positioning mechanisms (20) are in two sets, one set for positioning the boom tail (62) and the other set for positioning the cylinder mount (63).