CN218461324U - Clamping mechanism, clamping device and system for welding - Google Patents

Abstract

The utility model provides a fixture, clamping device and system for welding relates to the welding equipment field, and the fixture for welding includes support, drive assembly and two sets of arm lock subassemblies, and drive assembly drives two sets of arm lock subassemblies in step and draws close to the middle part, and the clamping positioning problem of space dysmorphism pipeline is effectively solved until two sets of arm lock subassemblies clamp and lock the work piece to be welded; the clamping device comprises a clamping mechanism, a base, a turnover mechanism and a rotating mechanism, the turnover mechanism drives the rotating mechanism to turn, the rotating mechanism drives the rotary table and the clamping mechanism to rotate, the turning axis of the rotating mechanism is perpendicular to the rotating axis of the rotary table, and then the coincidence of the welding seam rotation center and the clamping rotation center is guaranteed, so that automatic welding is realized, and the welding quality is guaranteed.

Description

Clamping mechanism, clamping device and system for welding

Technical Field

The utility model relates to a welding equipment field especially relates to a fixture, clamping device and system for welding.

Background

The spatial shape of the spatial special-shaped pipeline is complex, and the spatial structure and the position relation between the spatial structure and a welding seam influence the clamping and welding of workpieces. Therefore, the welding of the existing welding seams is completely in a manual welding mode, but the manual welding quality cannot be guaranteed, the welding heat input is unstable, and the welding deformation is serious.

Therefore, an automatic welding system is needed to be invented, so that the problems of clamping and automatic welding of the spatial special-shaped pipeline are effectively solved, the welding quality is ensured, and the thermal deformation of the pipeline is controlled.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide a fixture, clamping device and system for welding, its centre gripping location problem of effectively solving space special-shaped pipeline realizes automatic welding, guarantees welding quality.

The utility model discloses a realize through following technical scheme:

the utility model provides a fixture for welding, includes support, drive assembly and two sets of arm lock subassemblies, the arm lock subassembly symmetry is laid the front side of support, the arm lock subassembly with the front side sliding connection of support, drive assembly includes power part, slide bar and two sets of connecting rods, power part fixed connection be in the support, the slide bar with the front side of support is slided and is pegged graft, the power part push-and-pull the slide bar, the both ends of connecting rod respectively with arm lock subassembly and slide bar are articulated mutually, power part passes through slide bar and connecting rod push-and-pull arm lock subassembly, the front end of arm lock subassembly is used for the centre gripping to treat the welded workpiece.

Optionally, in a possible embodiment, the clamping arm assembly is slidably connected to the front side of the bracket through a slide rail assembly.

Optionally, in a possible implementation manner, a detachable C-shaped clamping block is arranged at the front end of the clamping arm assembly, and the two groups of symmetrically arranged C-shaped clamping blocks cooperate to clamp the workpiece to be welded.

Alternatively, in one possible embodiment, the power component is a cylinder or a hydraulic rod.

The utility model also discloses a clamping device is used in automatic welding of special-shaped pipeline circumferential weld, including foretell fixture for welding, still include base, tilting mechanism and slewing mechanism, the tilting mechanism drive the slewing mechanism upset, slewing mechanism's front side is equipped with the carousel, the support with the coaxial fixed connection of carousel, the slewing mechanism drive carousel and fixture rotate, slewing mechanism turn over the axis of rotation with the axis of rotation of carousel is mutually perpendicular.

Optionally, in a possible implementation manner, the turnover mechanism includes a first motor, a speed reducer and a turnover box, two sides of the turnover box are hinged to the base through a rotating shaft, the first motor and the speed reducer are fixedly connected to the base, and the first motor drives the turnover box to turn over through the speed reducer.

Optionally, in a possible embodiment, the rotating mechanism includes a second motor fixedly connected to the turnover box, the turntable is rotatably connected to the turnover box through a slip ring assembly, and the second motor drives the turntable to rotate.

The utility model also discloses an automatic welding system of dysmorphism pipeline circumferential weld, including the automatic clamping device for welding of foretell special-shaped pipeline circumferential weld, still include welding robot, welding robot lays the oblique side at the automatic clamping device for welding of special-shaped pipeline circumferential weld, welding robot includes robot and welder subassembly, robot passes through the mount pad to be fixed on ground, welder subassembly lays the expansion end at the robot.

The utility model has the advantages that:

(1) The power part of the clamping mechanism for welding pulls the slide rod, and the slide rod synchronously drives the two groups of clamping arm assemblies to approach to the middle part through the two groups of connecting rods until the two groups of clamping arm assemblies clamp and lock the workpiece to be welded, so that the clamping and positioning problems of the special-shaped space pipeline are effectively solved;

(2) The turnover mechanism in the clamping device for automatic welding drives the rotating mechanism to turn, the rotating mechanism drives the turntable and the clamping mechanism to rotate, and the turning axis of the rotating mechanism is perpendicular to the rotating axis of the turntable, so that the coincidence of a welding seam rotation center and a clamping rotation center is ensured, the automatic welding is realized, and the welding quality is ensured.

Drawings

Fig. 1 shows a schematic isometric view of embodiments 1 and 2 according to the present invention;

fig. 2 shows a front side schematic structure according to embodiments 1 and 2 of the present invention;

fig. 3 shows a schematic top view of embodiments 1 and 2 according to the present invention;

figure 4 shows an isometric structural schematic according to embodiment 3 of the present invention;

description of reference numerals:

1. a support; 2. a drive assembly; 3. a clamp arm assembly; 4. a slide rail assembly; 5. a power component; 6. a C-shaped clamping block; 7. a workpiece to be welded; 8. a base; 9. a turnover mechanism; 10. a rotating mechanism; 11. a first motor; 12. a speed reducer; 13. turning over the box body; 14. a turntable; 15. a second motor; 16. a slip ring assembly; 17. a welding robot; 18. a robot body; 19. a welding gun assembly; 20. a slide bar; 21. a connecting rod.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1-3, this embodiment provides a clamping mechanism for welding, which includes a support 1, a driving assembly 2 and two sets of clamping arm assemblies 3, the clamping arm assemblies 3 are symmetrically disposed at a front side of the support 1, and the clamping arm assemblies 3 are slidably connected to the front side of the support 1 through a sliding rail assembly 4, where the driving assembly 2 includes a power component 5, a sliding rod 20 and two sets of connecting rods 21, the power component 5 is fixedly connected to the support 1, the sliding rod 20 is slidably connected to the front side of the support 1, the power component 5 pushes and pulls the sliding rod 20, two ends of the connecting rod 21 are respectively hinged to the clamping arm assemblies 3 and the sliding rod 20, the power component 5 pushes and pulls the clamping arm assemblies 3 through the sliding rod 20 and the connecting rods, a detachable C-shaped clamping block 6 is disposed at a front end of the clamping arm assembly 3, the two sets of symmetrically disposed C-shaped clamping blocks 6 cooperate to clamp a workpiece 7 to be welded, and the power component 5 may be an air cylinder or a hydraulic rod.

Further, the slide rail assembly 4 comprises a horizontal slide rail arranged on the front side of the support 1 and a sliding table fixedly connected with the clamping arm assembly 3, and the sliding table is in sliding fit with the horizontal slide rail.

The working process is as follows:

a worker places the workpiece 7 to be welded between the two groups of C-shaped clamping blocks 6; the power part 5 pulls the slide rod 20, so that the slide rod 20 slides inwards, the slide rod 20 drives the two groups of clamping arm assemblies 3 to slide inwards through the connecting rod 21 until the C-shaped clamping blocks 6 of the clamping arm assemblies 3 clamp the workpiece 7 to be welded, and therefore high-precision clamping and locking of the workpiece 7 to be welded are achieved.

Example 2

As shown in fig. 1-3, the present embodiment provides an automatic special-shaped pipeline circular seam welding clamping device, including the welding clamping mechanism of embodiment 1, further including a base 8, a turning mechanism 9 and a rotating mechanism 10, where the turning mechanism 9 drives the rotating mechanism 10 to turn, the turning mechanism 9 includes a first motor 11, a speed reducer 12 and a turning box 13, two sides of the turning box 13 are hinged to the base 8 through a rotating shaft, the first motor 11 and the speed reducer 12 are fixedly connected to a side of the base 8, the first motor 11 drives the turning box 13 to turn through the speed reducer 12, a rotating disc 14 is disposed on a front side of the rotating mechanism 10, the support 1 is coaxially and fixedly connected to the rotating disc 14, the rotating mechanism 10 drives the rotating disc 14 and the clamping mechanism to rotate, and a turning axis of the rotating mechanism 10 is perpendicular to a rotating axis of the rotating disc 14, where the rotating mechanism 10 includes a second motor 15 fixedly connected to the turning box 13, the rotating disc 14 is rotatably connected to the turning box 13 through a slip ring assembly 16, and the second motor 15 drives the rotating disc 14 to rotate.

The working process comprises the following steps:

in the welding process, the first motor 11 can drive the turnover box body 13, the rotating mechanism 10 and the special-shaped pipeline to turn over through the speed reducer 12, the special-shaped pipeline is the workpiece 7 to be welded in the embodiment 1, and meanwhile the second motor 15 can drive the rotary table 14 and the clamping mechanism for welding to rotate, so that high-precision adjustment of two shafts is achieved, and the requirement of a welding seam of a circular seam of the special-shaped pipeline is met.

Example 3

As shown in the figure, this embodiment provides an automatic welding system of dysmorphism pipeline circumferential weld, including the automatic clamping device that uses of dysmorphism pipeline circumferential weld of embodiment 2, still include welding robot 17, welding robot 17 lays the oblique side at the automatic clamping device that uses of dysmorphism pipeline circumferential weld, welding robot 17 includes robot 18 and welder subassembly 19, robot 18 passes through the mount pad to be fixed on ground, welder subassembly 19 lays the expansion end at the robot, the robot can directly purchase current general purpose robot can.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (8)

1. The utility model provides a fixture for welding, its characterized in that, includes support, drive assembly and two sets of arm lock subassemblies, the arm lock subassembly symmetry is laid the front side of support, the arm lock subassembly with the front side sliding connection of support, drive assembly includes power part, slide bar and two sets of connecting rods, power part fixed connection be in the support, the slide bar with the front side sliding plug of support, the power part push-and-pull the slide bar, the both ends of connecting rod respectively with arm lock subassembly and slide bar are articulated mutually, power part passes through slide bar and connecting rod push-and-pull arm lock subassembly, the front end of arm lock subassembly is used for the centre gripping to treat the welded workpiece.

2. The welding fixture of claim 1, wherein the clamp arm assembly is slidably coupled to the front side of the support frame by a slide assembly.

3. The clamping mechanism for welding as claimed in claim 2, wherein the front end of the clamping arm assembly is provided with a detachable C-shaped clamping block, and two sets of symmetrically arranged C-shaped clamping blocks are matched to clamp the workpiece to be welded.

4. The clamping mechanism for welding as defined in claim 3, wherein said power member is an air cylinder or a hydraulic rod.

5. A clamping device for welding, characterized by comprising the clamping mechanism for welding of any one of claims 1-4, and further comprising a base, a turnover mechanism and a rotating mechanism, wherein the turnover mechanism drives the rotating mechanism to turn over, a turntable is arranged on the front side of the rotating mechanism, the bracket is coaxially and fixedly connected with the turntable, the rotating mechanism drives the turntable and the clamping mechanism to rotate, and the turning axis of the rotating mechanism is perpendicular to the rotating axis of the turntable.

6. The clamping device for welding as recited in claim 5, wherein the turnover mechanism comprises a first motor, a speed reducer and a turnover box, two sides of the turnover box are hinged to the base through a rotating shaft, the first motor and the speed reducer are fixedly connected to the base, and the first motor drives the turnover box to turn over through the speed reducer.

7. The clamping device for welding as defined in claim 6, wherein said rotating mechanism includes a second motor fixedly connected to said turn-over housing, said turntable being rotatably connected to said turn-over housing through a slip ring assembly, said second motor driving said turntable to rotate.

8. A welding system, comprising the clamping device for welding of claim 7, further comprising a welding robot, wherein the welding robot is arranged on the oblique side of the clamping device for automatic welding of the circular seam of the special-shaped pipeline, the welding robot comprises a robot body and a welding gun assembly, the robot body is fixed on the ground through a mounting seat, and the welding gun assembly is arranged at the movable end of the robot.

Images