CN105690406A

CN105690406A - Gas supply device for welding robot

Info

Publication number: CN105690406A
Application number: CN201610265481.8A
Authority: CN
Inventors: 李应煌; 梁娟
Original assignee: Liuzhou Funeng Robot Development Co Ltd
Current assignee: Liuzhou yuebo Robot Technology Co., Ltd
Priority date: 2016-04-26
Filing date: 2016-04-26
Publication date: 2016-06-22
Anticipated expiration: 2036-04-26
Also published as: CN105690406B

Abstract

The invention relates to a robot, in particular to a gas supply device for a welding robot. The gas supply device comprises a robot forearm and a manipulator, wherein the manipulator is hinged to the forearm by a wrist part; the wrist part comprises a rotatable hollow revolving shaft; one radial side of the revolving shaft is fixedly connected with the manipulator; the manipulator is connected with a welding gun; the other radial side of the revolving shaft is hinged to the forearm; the manipulator is a hollow manipulator; a high-pressure gas flowing into the inner chamber of the revolving shaft pass through the inner chamber of the manipulator and is then conveyed to the welding gun. By pumping the high-pressure gas into the hollow manipulator, on one hand, under the pressure of the high-pressure gas, the manipulator can stretch or contract, and on the other hand, gas can be supplied for the welding gun. The gas supply device for the welding robot is unique in design, convenient to use and easy to maintain and greatly improves the working efficiency of the robot.

Description

The feeder of welding robot

Technical field

The present invention relates to the robot of automobile manufacturing field, specifically the feeder of welding robot。

Background technology

Robot is widely used in commercial production, produces and in the welding process of processing particularly in auto parts, and the arm of robot meets industrial demand by doing swing and circumference rotary motion。Along with the development of advanced manufacturing technology, robot welding is adopted to become the modern outstanding feature of welding automatization technology。Welding robot, due to the advantage of highly versatile, reliable operation, is subject to people and more and more payes attention to。But matched spot welding aqueous vapor transport of kinetic energy, control mode are comparatively chaotic。Pipe-line layout trend is random, various terminal is multifarious, safeguards

Work complexity and function singleness, many problems that Robot Spot Welding is occurred cannot make effective control, has had a strong impact on machine task efficiency, has reduced the stability of welding quality。

Summary of the invention

For above-mentioned technical problem, the present invention provides a kind of feeder being carried out the welding robot supplied by flexible mechanical hand。

This invention address that the technical scheme that above-mentioned technical problem adopts is: the feeder of welding robot, including robot forearm and mechanical hand, mechanical hand is hinged by wrist and forearm, described wrist includes rotating hollow gyroaxis, the radial direction side of this gyroaxis is fixing connects described mechanical hand, mechanical hand connects welding gun, and the radial direction opposite side of gyroaxis is hinged with described forearm；Described mechanical hand is hollow manipulator, and the gases at high pressure flowing into described gyroaxis inner chamber are delivered to described welding gun through mechanical hand inner chamber。

As preferably, the drive of high-pressure gas mechanical hand of described mechanical hand inner chamber elongates or shortens。

As preferably, described mechanical hand includes hollow shell and is arranged on this shell inner cavity and the front end hollow inner shell by cover closure, inner shell is connected with described welding gun, described shell inner cavity and inner shell inner chamber constitute described mechanical hand inner chamber, described gyroaxis inner chamber and this mechanical hand inner space, mechanical hand inner chamber connects with welding gun air inlet, and described inner shell is extended or retraction shell inner cavity by the air pressure of intracavity in mechanical hand。

As preferably, described gyroaxis sidewall offers through hole, and gyroaxis inner chamber is by this through hole and described mechanical hand inner space；In described mechanical hand, intracavity is provided with a spring, and this spring one end is connected with described cover plate, the other end is connected with described gyroaxis sidewall。

As preferably, described welding gun is installed on the cover board, and cover plate is provided with and the pore of inner shell inner space, and this pore is connected with the air inlet of welding gun by trachea。As preferably, offering several grooves along its length at described shell inner cavity inwall, described inner shell outer wall is provided with several slide block, and each slide block stretches in corresponding groove and can move along groove。

As preferably, being provided with sealing strip along its length in each described groove。

From upper technical scheme it can be seen that the present invention by passing into gases at high pressure in the mechanical hand of hollow, mechanical hand can be made under the pressure of gases at high pressure to elongate or shorten on the one hand, can supply for welding gun on the other hand；The design of this device is ingenious, easy to use, it is easy to safeguards, greatly improves robot work efficiency。

Accompanying drawing explanation

Fig. 1 is the structural representation of optimal way of the present invention。

Detailed description of the invention

The present invention is discussed in detail below in conjunction with Fig. 1:

The feeder of welding robot, including robot forearm 1 and mechanical hand 2, mechanical hand is hinged by wrist 4 and forearm, and described wrist includes rotating hollow gyroaxis 42, and the radial direction side of this gyroaxis is fixing connects described mechanical hand, mechanical hand connects welding gun 6, the radial direction opposite side of gyroaxis is hinged with described forearm, by being driven back to axis of rotation, can rotate by driving mechanical hands, can be swung by driving mechanical hands by the swing of forearm, it is ensured that welding gun is in optimum welding position；Described mechanical hand is hollow manipulator, and the gases at high pressure flowing into described gyroaxis inner chamber 43 are delivered to described welding gun through mechanical hand inner chamber, thus meeting the air supply requirement of Robot Spot Welding system。

The drive of high-pressure gas mechanical hand of the mechanical hand inner chamber of the present invention elongates or shortens。Specifically, mechanical hand 2 includes hollow shell 21 and is arranged on the hollow inner shell 23 that this shell inner cavity 22 and front end are closed by cover plate 3, described welding gun is installed on the cover board, and cover plate is provided with the pore 31 with inner shell inner space, and this pore can pass through trachea 32 and connect with the air inlet of welding gun；Described shell inner cavity 22 and inner shell inner chamber 24 constitute airtight described mechanical hand inner chamber 25, this mechanical hand inner chamber and described gyroaxis inner space, and described inner shell is extended or retraction shell inner cavity by the air pressure of intracavity in this mechanical hand。In welding process, as supplied to welding gun, only need to open the pore on cover plate, make gas enter welding gun through air inlet, simple to operation。

Described gyroaxis sidewall offers through hole 41, and gyroaxis inner chamber is by this through hole and described mechanical hand inner space；Being provided with a spring 5 in described mechanical hand inner chamber 25, this spring one end is connected with described cover plate, the other end is connected with described gyroaxis sidewall；In welding process, when welding gun from pad farther out time, high-pressure air source from gyroaxis inner chamber by described through hole enter mechanical hand inner chamber, raise the air pressure of intracavity in mechanical hand, inner shell is made to stretch out shell under gas pressure, thus driving welding gun close to pad, spring elongation simultaneously；If welding gun from pad too close to, in mechanical hand, the gas of intracavity can return to source of the gas from through hole through rotating shaft inner chamber, and in mechanical hand, the air pressure of intracavity reduces, and spring-return is made every effort to overcome and taken the gas pressure of intracavity in mechanical hand, inner shell is made to retract gradually shell inner cavity, so that welding gun is in the welding position of the best。As preferably, offering several grooves 221 along its length at described shell inner cavity 22 inwall, described inner shell outer wall is provided with several slide block 241, and each slide block stretches in corresponding groove and can move along groove；In the process that inner shell stretches out and retracts, slide block moves along groove, it may be achieved the accurate of inner shell is moved；Sealing strip 222 it is provided with along its length, it is ensured that the sealing of mechanical hand inner chamber in each described groove。

The technical scheme above embodiment of the present invention provided is described in detail, principle and the embodiment of the embodiment of the present invention are set forth by specific case used herein, and the explanation of above example is only applicable to help to understand the principle of the embodiment of the present invention；Simultaneously for one of ordinary skill in the art, according to the embodiment of the present invention, all will change in detailed description of the invention and range of application, in sum, this specification content should not be construed as limitation of the present invention。

Claims

1. the feeder of welding robot, including robot forearm and mechanical hand, mechanical hand is hinged by wrist and forearm, it is characterized in that: described wrist includes rotating hollow gyroaxis, the radial direction side of this gyroaxis is fixing connects described mechanical hand, mechanical hand connects welding gun, and the radial direction opposite side of gyroaxis is hinged with described forearm；Described mechanical hand is hollow manipulator, and the gases at high pressure flowing into described gyroaxis inner chamber are delivered to described welding gun through mechanical hand inner chamber。

2. the feeder of welding robot as claimed in claim 1, it is characterised in that: the drive of high-pressure gas mechanical hand of described mechanical hand inner chamber elongates or shortens。

3. the feeder of welding robot as claimed in claim 2, it is characterized in that: described mechanical hand includes hollow shell and is arranged on this shell inner cavity and the front end hollow inner shell by cover closure, inner shell is connected with described welding gun, described shell inner cavity and inner shell inner chamber constitute described mechanical hand inner chamber, described gyroaxis inner chamber and this mechanical hand inner space, mechanical hand inner chamber connects with welding gun air inlet, and described inner shell is extended or retraction shell inner cavity by the air pressure of intracavity in mechanical hand。

4. the feeder of welding robot as claimed in claim 3, it is characterised in that: described gyroaxis sidewall offers through hole, and gyroaxis inner chamber is by this through hole and described mechanical hand inner space；In described mechanical hand, intracavity is provided with a spring, and this spring one end is connected with described cover plate, the other end is connected with described gyroaxis sidewall。

5. the feeder of welding robot as claimed in claim 3, it is characterised in that: described welding gun is installed on the cover board, and cover plate is provided with and the pore of inner shell inner space, and this pore is connected with the air inlet of welding gun by trachea。

6. the feeder of welding robot as claimed in claim 3, it is characterised in that: offering several grooves along its length at described shell inner cavity inwall, described inner shell outer wall is provided with several slide block, and each slide block stretches in corresponding groove and can move along groove。

7. the feeder of welding robot as claimed in claim 6, it is characterised in that: it is provided with sealing strip along its length in each described groove。