CN219900907U - Butt seam welding jig and welding equipment for plate forming chair leg tube - Google Patents

Abstract

The utility model belongs to the technical field of welding, and relates to butt seam welding of a plate forming chair leg pipe, in particular to a butt seam welding jig and welding equipment of the plate forming chair leg pipe. The auxiliary positioning device solves the problem that the auxiliary positioning device in the prior art cannot well realize the positioning of the foot tube. The butt seam welding jig for the plate forming chair leg tube comprises a base plate, wherein a fixed clamping block is fixedly arranged on the base plate, at least one side of the fixed clamping block is provided with a movable clamping block relatively, the movable clamping block is connected in a telescopic manner through a driving mechanism, a horizontal clamping station is formed between the fixed clamping block and the movable clamping block, and the fixed clamping block and the movable clamping block are protruded to the top side of the horizontal clamping station to form a vertical pressing part. The utility model has the advantages that: the butt seam welding jig for the foot pipe of the plate forming chair has the advantages of realizing good clamping and positioning of the foot pipe, avoiding the situation that the foot pipe is inclined upwards in the clamping process, along with simple structure, convenient replacement and production and processing.

Description

Butt seam welding jig and welding equipment for plate forming chair leg tube

Technical Field

The utility model belongs to the technical field of welding, and relates to butt seam welding of a plate forming chair leg pipe, in particular to a butt seam welding jig and welding equipment of the plate forming chair leg pipe.

Background

The chair foot carries out extrusion through panel, and the butt joint gap of extrusion back foot pipe needs to carry out welding treatment, adopts auxiliary positioning equipment to press from both sides tightly in order to accomplish the location to foot pipe both sides generally, but auxiliary positioning equipment among the prior art can not well realize foot pipe location, can have the skew condition such as foot pipe upslope in pressing from both sides tight in-process, and simultaneously, current auxiliary positioning equipment structure is complicated and inconvenient production and change.

For example, chinese patent discloses a straight seam welding equipment chinese patent No. (CN 202122604503.8) with assistance-localization real-time, a straight seam welding equipment with assistance-localization real-time, including the base, the upper surface symmetry of base is equipped with two first mounting panels, the opposite one side surface of first mounting panel is along circumferencial direction fixedly connected with a plurality of second mounting panels, the middle part of second mounting panel runs through and is equipped with first pivot, the surface symmetry of first pivot is equipped with two sections external screw threads, the surface of first pivot is threaded connection respectively with interior L type movable plate, outer L type movable plate through two sections external screw threads, the end fixedly connected with interior movable plate of interior L type movable plate, the end fixedly connected with outer briquetting of outer L type movable plate, the surface fixedly connected with driven bevel gear of first pivot, run through on the first mounting panel and be equipped with the second pivot, one side fixedly connected with drive bevel gear and driven bevel gear meshing connection. According to the scheme, through the arrangement of the inner L-shaped movable plate and the outer L-shaped movable plate, the inner pressing block and the outer pressing block simultaneously clamp the inner surface and the outer surface of the steel pipe, and the phenomenon that the section of the steel pipe is deformed due to single-side clamping is avoided, so that the roundness of the section of the welded light pipe is influenced.

Although the scheme has the advantages, the scheme clamps the cylindrical foot tube through the inner surface and the outer surface, so that the deformation of the section of the steel tube caused by the clamping at one side is avoided, the problems are not well solved, the use is limited, the conditions of upward inclination and the like of the foot tube cannot be effectively avoided in the clamping process, the positioning stability of the foot tube is poor, the structure is complex, and the cost is high.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides a butt seam welding jig and welding equipment for a plate forming chair leg tube, which are additionally provided with vertical pressing and holding positioning on the basis of planar bidirectional fixing to realize three-dimensional fixing so as to improve the clamping stability and accuracy of products.

The aim of the utility model can be achieved by the following technical scheme:

the butt seam welding jig for the plate forming chair leg tube comprises a base plate, wherein a fixed clamping block is fixedly arranged on the base plate, at least one side of the fixed clamping block is provided with a movable clamping block relatively, the movable clamping block is connected in a telescopic manner through a driving mechanism, a horizontal clamping station is formed between the fixed clamping block and the movable clamping block, and the fixed clamping block and the movable clamping block are protruded to the top side of the horizontal clamping station to form a vertical pressing part.

In the butt seam welding jig for the plate forming chair leg pipe, the side surface of the fixed clamping block adjacent to the horizontal clamping station is a static clamping surface, and the side surface of the movable clamping block adjacent to the horizontal clamping station is a dynamic clamping surface; the vertical pressing part is an anti-falling claw which is convexly arranged on the top edge of the static clamping surface/the top edge of the dynamic clamping surface, and the anti-falling claw is provided with an inclined bottom surface which extends along the horizontal clamping station.

In the butt seam welding jig for the plate forming chair leg pipe, the dynamic clamping surface and the static clamping surface are one of inclined surfaces or vertical surfaces.

In the butt seam welding jig for the plate forming chair leg pipe, the dynamic clamping surface and/or the static clamping surface is/are concavely provided with the accommodating opening, an elastic propping group is arranged in the accommodating opening, the elastic propping group comprises an elastic piece, one end of the elastic piece is fixedly connected with the accommodating opening, and the other end of the elastic piece is fixedly connected with the retaining plate.

In the butt seam welding jig for the foot tube of the plate forming chair, the base plate is fixedly provided with the supporting blocks on the horizontal clamping stations, the top surfaces of the supporting blocks are supporting surfaces, and the width of the supporting surfaces is larger than twice that of the inclined bottom surfaces.

At least one group of guide posts are fixedly connected to the supporting blocks, at least one group of guide holes are correspondingly formed in the movable clamping blocks, the guide posts correspondingly penetrate through the guide holes to form guide sliding connection, and the tail ends of the guide posts extending out of the guide holes are fixedly inserted with anti-drop pins.

In the butt seam welding jig for the foot tube of the plate forming chair, the distance L1 between the guide post and the base plate is smaller than the distance L2 between the supporting block and the base plate.

In the butt seam welding jig for the plate forming chair leg pipe, the driving mechanism comprises a telescopic cylinder, a telescopic rod of the telescopic cylinder is fixedly connected with a push block, and the push block is connected with the movable clamping block.

In the butt seam welding jig for the plate forming chair leg pipe, at least one control handle is connected above the telescopic cylinder, and the control handle is in pneumatic connection with the telescopic cylinder.

A welding apparatus comprising the butt seam welding jig for the foot tube of the sheet forming chair of any one of the above.

Compared with the prior art, the butt seam welding jig for the foot tube of the plate forming chair has the following beneficial effects:

the two sides of the foot tube are clamped through the static clamping surface of the fixed clamping block and the dynamic clamping surface of the movable clamping block, the top surface of the foot tube is positioned and attached by combining the inclined bottom surface of the anti-falling clamping jaw which is convexly arranged on the top edge of the dynamic/static clamping surface, so that the clamping stability and the precision of the foot tube are improved, and meanwhile, the butt seam welding jig for the foot tube of the plate forming chair is simple in structure and convenient to replace and manufacture.

Drawings

Fig. 1 is a schematic structural diagram of a butt seam welding jig for a leg tube of a plate forming chair according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of another structure of a butt seam welding fixture for a leg tube of a plate forming chair according to an embodiment of the present utility model.

Fig. 3 is a partial front view of fig. 2.

Fig. 4 is a first partial structure diagram of fig. 2.

Fig. 5 is a second partial structure diagram of fig. 2.

Fig. 6 is a schematic view of a third partial structure of fig. 2.

Fig. 7 is a schematic view of a fourth partial structure of fig. 2.

In the figure, a base plate 1, a fixed clamping block 2, a static clamping surface 21, a movable clamping block 3, a dynamic clamping surface 31, a guide hole 32, a driving mechanism 4, a telescopic cylinder 41, a telescopic rod 411, a push block 42, a drop-preventing claw 5, an inclined bottom surface 51, a containing opening 6, an elastic abutting group 7, an elastic piece 71, a retaining plate 72, a guide post 8, a drop-preventing pin 9, a supporting block a, a supporting surface a1 and a control handle b.

Detailed Description

The following are specific embodiments of the utility model and the technical solutions of the utility model will be further described with reference to the accompanying drawings, but the utility model is not limited to these embodiments.

Example 1

As shown in fig. 1 to 6, the butt seam welding jig for the foot tube of the plate forming chair comprises a base plate 1, wherein a fixed clamping block 2 is fixedly arranged on the base plate 1, at least one side of the fixed clamping block 2 is provided with a movable clamping block 3 relatively, the movable clamping block 3 is connected in a telescopic manner by a driving mechanism 4, a horizontal clamping station is formed between the fixed clamping block 2 and the movable clamping block 3, and the fixed clamping block 2 and the movable clamping block 3 protrude to the top side of the horizontal clamping station to form a vertical pressing part.

In order to achieve good positioning of the foot pipe, specifically, in this embodiment, the side surface of the fixed clamping block 2 adjacent to the horizontal clamping station is a static clamping surface 21, and the side surface of the movable clamping block 3 adjacent to the horizontal clamping station is a dynamic clamping surface 31; the vertical pressing part is a drop-proof claw 5 protruding upwards from the top edge of the static clamping surface 21/the dynamic clamping surface 31, and the drop-proof claw 5 is provided with an inclined bottom surface 51 extending along the horizontal clamping station. The foot pipe is placed between the dynamic clamping surface 31 and the static clamping surface 21, the fixed clamping block 2 is pushed by the driving mechanism 4 to enable the foot pipe to be fixed between the dynamic clamping surface 31 and the static clamping surface 21, the foot pipe is positioned and attached through the inclined bottom surface 51, the foot pipe is prevented from being inclined upwards, the good positioning of the foot pipe is realized, the welding effect is ensured, the welding seam gap is uniform, and the conditions of weld flash, surface welding crack, air holes, welding slag, welding penetration and the like are prevented.

To accommodate different foot tube clamping requirements, the dynamic clamping surface 31 and the static clamping surface 21 are one of inclined or vertical surfaces, as shown in fig. 4 and 5. The dynamic clamping surface 31 and the static clamping surface 21 are well attached to two sides of the foot pipe required to be clamped, so that the situation that the foot pipe is deviated in the welding process is prevented.

In order to prevent the foot tube from being damaged, in particular, in this embodiment, the dynamic clamping surface 31 and/or the static clamping surface 21 are concavely provided with a receiving opening 6, an elastic propping group 7 is disposed in the receiving opening 6, the elastic propping group 7 includes an elastic member 71 with one end fixedly connected to the receiving opening, and the other end of the elastic member 71 is fixedly connected to a retaining plate 72. The retaining plate 72 contacts with the foot tube, and a buffer space is formed between the retaining plate 72 and the foot tube through the elastic piece 71, so that the situation that the foot tube is pressed into the impression caused by excessive clamping and the like is prevented, and the elastic piece 71 is preferably a spring, but can also be a rubber block with elastic buffer and the like.

In order to prevent the clamping distortion and falling off of the two sides due to the lack of support at the bottom during the process of clamping the foot tube, as shown in fig. 1 to 6, a supporting block a is fixedly arranged on the substrate 1 at the horizontal clamping station, the top surface of the supporting block a is a supporting surface a1, and the width of the supporting surface a1 is greater than twice the width of the inclined bottom surface 51. So as to ensure the stability of the foot tube clamping process and realize the support, the deflection prevention and the falling prevention of the foot tube.

In order to form a horizontal clamping station between the movable clamping block 3 and the fixed clamping block 2, as shown in fig. 1 to 6, at least one group of guide posts 8 are fixedly connected to the supporting block a, at least one group of guide holes 32 are correspondingly formed in the movable clamping block 3, the guide posts 8 correspondingly penetrate through the guide holes 32 to form guide sliding connection, and the tail ends of the guide posts 8 extending out of the guide holes 32 are fixedly inserted into anti-drop pins 9. The guide post 8 on the support block a is correspondingly connected with the guide hole 32 of the movable clamping block 3 in a penetrating manner, so that the guide effect is realized, the moving direction of the movable clamping block 3 is ensured, the clamping deviation and other conditions are avoided, the movable clamping block 3 is prevented from dislocation through the end of the guide hole 32, the limiting effect is achieved, the mode of fixedly connecting the guide post 8 on the support block a is not limited, for example, the same technical effect can be achieved by fixedly connecting the guide post on the fixed clamping block 2, and the method is not described in detail one by one.

In order to achieve good movement adjustment of the movable clamp block 3, as shown in fig. 1, 2, 3 and 7, the distance L1 between the guide post 8 and the substrate 1 is smaller than the distance L2 between the support block a and the substrate 1. Avoid taking place to interfere with the foot pipe, simultaneously, riding block a plays activity clamp splice 3 spacing effect, avoids activity clamp splice 3 centre gripping to put in place to appear the condition such as clamp injury.

In order to push the movable clamping block 3 to perform telescopic movement, as shown in fig. 1, 2, 4 and 6, the driving mechanism 4 comprises a telescopic cylinder 41, a telescopic rod 411 of the telescopic cylinder 41 is fixedly connected with a push block 42, and the push block 42 is connected with the movable clamping block 3. The push block 42 is fixedly connected through the telescopic air cylinder 41 so as to push the movable clamping block 3 to carry out telescopic clamping on the fixed clamping block 2, but the telescopic clamping device is not limited to realize translational driving through the telescopic air cylinder 41, for example, other telescopic structures such as a guide rail sliding block, a hydraulic cylinder and the like, and the telescopic clamping of the movable clamping block 3 by the push block 42 can be realized by equivalent replacement.

In order to achieve the extending and retracting state of the movable clamp block 3, as shown in fig. 1, 2 and 6, specifically, in this embodiment, at least one control handle b is connected above the telescopic cylinder 41, and the control handle b is pneumatically connected with the telescopic cylinder 41. The air quantity entering and exiting the telescopic air cylinder 41 is controlled by the control handle b, and the telescopic state and the air cylinder clamping force of the movable clamping block 2 are adjusted.

The two sides of the foot tube are clamped through the static clamping surface of the fixed clamping block and the dynamic clamping surface of the movable clamping block, the top surface of the foot tube is positioned and attached by combining the inclined bottom surface of the anti-falling clamping jaw which is convexly arranged on the top edge of the dynamic/static clamping surface, so that the clamping stability and the precision of the foot tube are improved, and meanwhile, the butt seam welding jig for the foot tube of the plate forming chair is simple in structure and convenient to replace and manufacture.

Design principle of butt seam welding jig for foot tube of plate forming chair:

through setting up fixed clamp splice 2 on base plate 1 to set up movable clamp splice 3 relatively in fixed clamp splice 2 both sides limit, make between fixed clamp splice 2 and the movable clamp splice 3 form horizontal clamping station through actuating mechanism 4, the foot pipe is placed between dynamic clamping face 31 and is static clamping face 21, promote movable clamp splice 3 through actuating mechanism 4 and make the foot pipe be fixed in between dynamic clamping face 31 and the static clamping face 21, the rethread slope bottom surface 51 pressure holds foot pipe top and carries out the laminating of location, prevents that the upward sloping of foot pipe from leading to the foot pipe to be unable to carry out good location, influences welding treatment.

Example two

Based on the embodiment, as shown in fig. 1 to 6, the welding device comprises a butt seam welding jig for a plate forming chair leg pipe of the first embodiment and a welding device matched with the butt seam welding jig for the plate forming chair leg pipe.

Design principle:

through setting up fixed clamp splice 2 on base plate 1 to set up movable clamp splice 3 relatively in fixed clamp splice 2 both sides limit, make between fixed clamp splice 2 and the movable clamp splice 3 form horizontal clamping station through actuating mechanism 4, the foot pipe is placed between dynamic clamping face 31 and is static clamping face 21, promote movable clamp splice 3 through actuating mechanism 4 and make the foot pipe be fixed in between dynamic clamping face 31 and the static clamping face 21, the rethread slope bottom surface 51 pressure holds foot pipe top and carries out the laminating of location, prevents that the upward sloping of foot pipe from leading to the foot pipe to be unable to carry out good location, influences welding treatment.

Although terms of the base plate 1, the fixed clamp block 2, the static clamp surface 21, the movable clamp block 3, the dynamic clamp surface 31, the guide hole 32, the driving mechanism 4, the telescopic cylinder 41, the telescopic rod 411, the push block 42, the anti-falling jaw 5, the inclined bottom surface 51, the receiving port 6, the elastic abutment group 7, the elastic member 71, the abutment plate 72, the guide post 8, the anti-falling pin 9, the support block a, the support surface a1, the control handle b, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Claims (10)

1. The butt seam welding jig for the foot tubes of the plate forming chair comprises a base plate (1) and is characterized in that a fixed clamping block (2) is fixedly arranged on the base plate (1), at least one side of the fixed clamping block (2) is provided with a movable clamping block (3) relatively, the movable clamping block (3) is connected in a telescopic manner through a driving mechanism (4), a horizontal clamping station is formed between the fixed clamping block (2) and the movable clamping block (3), and the fixed clamping block (2) and the movable clamping block (3) are protruded towards the top side of the horizontal clamping station to form a vertical pressing part.

2. The butt seam welding jig for the foot tubes of the plate forming chair according to claim 1, wherein the side surface of the fixed clamping block (2) adjacent to the horizontal clamping station is a static clamping surface (21), and the side surface of the movable clamping block (3) adjacent to the horizontal clamping station is a dynamic clamping surface (31); the vertical pressing part is provided with a static clamping surface (21)/an anti-falling claw (5) protruding upwards from the top edge of the dynamic clamping surface (31), and the anti-falling claw (5) is provided with an inclined bottom surface (51) extending along the horizontal clamping station.

3. Butt-seam welding jig for foot tubes of sheet material forming chairs according to claim 2, characterised in that the dynamic clamping surface (31) and the static clamping surface (21) are one of inclined or vertical surfaces.

4. A butt seam welding jig for a foot tube of a plate forming chair according to claim 3, wherein the dynamic clamping surface (31) and/or the static clamping surface (21) are/is concavely provided with a containing opening (6), an elastic propping group (7) is arranged in the containing opening (6), the elastic propping group (7) comprises an elastic piece (71) fixedly connected with the containing opening, and the other end of the elastic piece (71) is fixedly connected with a retaining plate (72).

5. The butt seam welding jig for the foot tubes of the plate forming chair according to claim 4, wherein the base plate (1) is fixedly provided with a supporting block (a) on the horizontal clamping station, the top surface of the supporting block (a) is a supporting surface (a 1), and the width of the supporting surface (a 1) is larger than twice the width of the inclined bottom surface (51).

6. The butt seam welding jig for the foot tubes of the plate forming chair according to claim 5, wherein at least one group of guide posts (8) are fixedly connected to the supporting block (a), at least one group of guide holes (32) are correspondingly formed in the movable clamping block (3), the guide posts (8) correspondingly penetrate through the guide holes (32) to form guide sliding connection, and the tail ends of the guide posts (8) extending out of the guide holes (32) are fixedly inserted with anti-drop pins (9).

7. Butt seam welding jig for foot tubes of sheet material forming chairs according to claim 6, characterised in that the distance L1 from the guide post (8) to the base plate (1) is smaller than the distance L2 from the support block (a) to the base plate (1).

8. Butt seam welding jig for foot tubes of sheet material forming chairs according to claim 1, characterised in that the driving mechanism (4) comprises a telescopic cylinder (41), a telescopic rod (411) of the telescopic cylinder (41) is fixedly connected with a push block (42), and the push block (42) is connected with the movable clamping block (3).

9. Butt seam welding jig for foot tubes of sheet material forming chairs according to claim 8, characterised in that at least one control handle (b) is connected above the telescopic cylinder (41), said control handle (b) being pneumatically connected with the telescopic cylinder (41).

10. Welding equipment, characterized in that it comprises a butt seam welding jig for a foot tube of a sheet forming chair according to any one of claims 1 to 9.