CN215145879U - Laser welding tool for rotary robot - Google Patents

Abstract

The utility model discloses a solid of revolution robot laser welding frock relates to welding frock field. The indexing disc unit comprises an indexing disc main shaft, and an indexing drive plate, a ratchet wheel and an indexing fluted disc which are arranged on the indexing disc main shaft, wherein the ratchet wheel and the indexing fluted disc are arranged in a linkage manner, the indexing drive plate and the ratchet wheel are arranged in a non-interfering manner and rotate independently, feeding and non-return are controlled by a drive pawl and a non-return pawl, and the drive pawl is pivotally connected to a braking block on the indexing drive plate; the pneumatic brake device is characterized by further comprising an air pushing cylinder arranged on the bottom plate, and a push rod of the pushing cylinder is connected with the braking block through a pivot. Under the condition that need not the four-axis ware that shifts, realize fixing the solid of revolution work piece, at the in-process that uses welding robot to carry out laser welding, reduce the programming step, realize the effect to the solid of revolution segmentation welding, the precision is high simultaneously, has greatly improved production efficiency.

Description

Laser welding tool for rotary robot

Technical Field

The utility model relates to a welding frock field especially relates to a solid of revolution robot laser welding frock.

Background

The four-axis positioner is a special welding auxiliary device and is suitable for rotary welding displacement so as to obtain an ideal machining position and welding speed. Under the condition of no four-axis positioner, the conventional revolving body welding can only program a path by multi-path programming or simple three-point positioning, and then a path program is programmed and rotated by manual pushing. The method has the defects of multiple programming steps, complex operation, slower efficiency, poor program repeatability and poor universality of different products.

Therefore, a simpler and more convenient device with low cost is needed, which can replace a four-axis positioner and simultaneously reduce the complexity of programming and operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a solid of revolution robot laser welding frock, under the condition that need not the four-axis ware that shifts, realize the fixed to the solid of revolution work piece, at the in-process that uses welding robot to carry out laser welding, reduce the programming step, realize the effect to solid of revolution segmentation welded, the precision is high simultaneously, has greatly improved production efficiency.

In order to achieve the purpose, the application discloses a rotary body robot laser welding tool which comprises a bottom plate and a workbench, wherein the bottom plate and the workbench are connected through an index plate unit and are arranged in a manner that the workbench rotates on the bottom plate by taking the index plate as an axis; the indexing disc unit comprises an indexing disc main shaft, and an indexing drive plate, a ratchet wheel and an indexing fluted disc which are arranged on the indexing disc main shaft, wherein the ratchet wheel and the indexing fluted disc are arranged in a linkage manner, the indexing drive plate and the ratchet wheel are arranged to rotate independently without mutual interference, feeding and non-return are controlled by a drive pawl and a stop pawl, and the drive pawl is pivotally connected to a braking block on the indexing drive plate; the pneumatic brake device is characterized by further comprising an air pushing cylinder arranged on the bottom plate, and a push rod of the pushing cylinder is connected with the braking block through a pivot.

In one example, the orthographic projection area of the workbench on the bottom plate is also provided with a plurality of universal ball supporting seats.

In one example, the indexing disk main shaft is fixed on the base plate, and the indexing toothed disk is fixedly connected with the workbench.

In one example, a ratchet stop is also provided on the base plate.

In one example, the ratchet teeth of the ratchet wheel are set to 8.

In one example, the diameter of the table is no less than 750 mm.

The beneficial effects of the utility model include:

the revolving body robot laser welding tool can achieve the effect of driving the revolving body to rotate at a fixed angle, only one path program needs to be written through rotation at a specific angle, welding of the revolving body can be achieved easily, after the revolving body robot laser welding tool is fixed through clamping and centering, only one path needs to be programmed, after welding is conducted, the indexing disc device is pushed through the air cylinder, 45 degrees, 90 degrees, 135 degrees, 180 degrees, 225 degrees, 270 degrees and 45 degrees of angle rotation can be achieved, the whole circle of welding seams can be welded in a segmented and rotating mode, the deviation of the path can be guaranteed to be smaller than 0.1mm, the precision is high, the production efficiency is greatly improved, the tool is suitable for welding of 10-750 mm revolving bodies, and the universality is high.

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 some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a structural diagram of the structure of the present invention.

Fig. 2 is an internal structure diagram of the present invention.

Fig. 3 is a structural diagram of the index plate of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The revolving body robot laser welding tool shown in fig. 1-3 comprises a bottom plate 1 and a workbench 2, wherein the bottom plate and the workbench are connected through an index plate unit 3 and are arranged in a manner that the workbench rotates on the bottom plate by taking an index plate as an axis; the indexing disc unit comprises an indexing disc main shaft 31, an indexing dial 32, a ratchet wheel 33 and an indexing fluted disc 34 which are arranged on the indexing disc main shaft, the ratchet wheel and the indexing fluted disc are arranged in linkage, the indexing dial and the ratchet wheel are arranged in a mode of rotating independently without interfering with each other, feeding and non-return are controlled through a driving pawl 4 and a stopping pawl 5, and the driving pawl is pivotally connected to a braking block 6 on the indexing dial; the brake block is characterized by further comprising a pushing cylinder 7 arranged on the bottom plate, and a push rod of the pushing cylinder is connected with the brake block through a pivot. The pawl drives the ratchet wheel to rotate through the movement of the push rod of the pushing cylinder, and meanwhile, the workbench is further stabilized through stopping the pawl.

On the basis of the technical scheme, a plurality of universal ball supporting seats 8 are further arranged in the orthographic projection area of the workbench on the bottom plate. The supporting of the workbench and the stress dispersion are realized through the universal ball supporting seat. As a preferred embodiment, the universal ball supporting seats are arranged around the dividing plate in a cross-shaped symmetrical mode, and the pressure is uniformly borne.

Naturally, in order to connect the index plate to the workbench and the bottom plate, the index plate may be fixed to the bottom plate through the index plate main shaft, and the index toothed plate is fixedly connected to the workbench.

In a preferred embodiment, a ratchet stop 9 is further provided on the bottom plate. The push rod of the push cylinder is prevented from being pushed excessively.

In addition, 8 ratchet teeth are arranged on the ratchet wheel. The push rod pushes each time, and the 45-degree rotation can be realized.

The diameter of the worktable is not less than 750 mm. Can meet the supporting and using requirements of a revolving body with the diameter of 10mm-750 mm.

The welding process is carried out through the revolving body robot laser welding tool, after the welding path with the fixed angle is programmed, the revolving body is pushed by the welding tool to rotate by the fixed angle, and then the welding path is repeated.

The method specifically comprises the following steps:

(a) the revolving body is clamped and fixed on the workbench and is aligned concentrically through the dial indicator;

(b) programming a working path of the welding robot with a fixed angle;

(c) after the welding robot welds and fixes the angle, promote the solid of revolution to rotate and fix the angle through the welding frock;

(d) and c, repeating the step c until the welding is completed.

The fixed angle Δ =360 °/N, where N is the number of ratchet teeth of the ratchet. Preferably, the fixed angle is 45 °.

The indexing disc device is pushed by the air cylinder, the double-angle rotation of 45 degrees, 90 degrees, 135 degrees, 180 degrees, 225 degrees, 270 degrees and 45 degrees can be realized, the whole circle of welding seam can be welded in a segmented and rotating way, the path deviation can be ensured to be less than 0.1mm, the precision is higher, the production efficiency is greatly improved,

the above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims (6)

1. The utility model provides a solid of revolution robot laser welding frock, includes bottom plate (1) and workstation (2), its characterized in that: the bottom plate and the workbench are connected through the index plate unit (3) and are set to be self-rotated on the bottom plate by taking the index plate as an axis; the indexing disc unit comprises an indexing disc main shaft (31), and an indexing drive disc (32), a ratchet wheel (33) and an indexing fluted disc (34) which are arranged on the indexing disc main shaft, wherein the ratchet wheel and the indexing fluted disc are arranged in linkage, the indexing drive disc and the ratchet wheel are arranged to rotate independently without mutual interference, feeding and non-return are controlled by a drive pawl (4) and a non-return pawl (5), and the drive pawl is pivotally connected to a braking block (6) on the indexing drive disc; the pneumatic brake device is characterized by further comprising an air pushing cylinder (7) arranged on the bottom plate, and a push rod of the pushing cylinder is connected with the braking block through a pivot.

2. The revolving body robot laser welding tool according to claim 1, characterized in that: the orthographic projection area of the workbench on the bottom plate is also provided with a plurality of universal ball supporting seats (8).

3. The revolving body robot laser welding tool according to claim 1, characterized in that: the index plate main shaft is fixed on the bottom plate, and the index fluted disc is fixedly connected with the workbench.

4. The revolving body robot laser welding tool according to claim 1, characterized in that: the bottom plate is also provided with a ratchet wheel stop block (9).

5. The revolving body robot laser welding tool according to claim 1, characterized in that: the number of the ratchet teeth of the ratchet wheel is 8.

6. The revolving body robot laser welding tool according to claim 1, characterized in that: the diameter of the workbench is not less than 750 mm.

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