CN213560723U - Multi-degree-of-freedom mechanical arm for automatic welding - Google Patents
Multi-degree-of-freedom mechanical arm for automatic welding Download PDFInfo
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- CN213560723U CN213560723U CN202022308338.7U CN202022308338U CN213560723U CN 213560723 U CN213560723 U CN 213560723U CN 202022308338 U CN202022308338 U CN 202022308338U CN 213560723 U CN213560723 U CN 213560723U
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- arm
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- 238000003466 welding Methods 0.000 title claims abstract description 109
- 239000011324 bead Substances 0.000 claims abstract description 18
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 239000010937 tungsten Substances 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of automatic weld and arm design, concretely relates to be used for automatic weld's multi freedom arm. The welding device comprises a base, a vertical rotating shaft arranged on the base, a rotating base arranged on the vertical rotating shaft, a horizontal rotating shaft arranged on the rotating base, a rotating arm arranged on the horizontal rotating shaft, a connecting rotating bead arranged on the tail end of the rotating arm and a welding gun arranged on the connecting rotating bead; the base is connected with the rotating base through a vertical rotating shaft; the welding gun is connected with the rotating arm through a connecting rotating bead, and the connecting rotating bead is used for realizing the multi-freedom-degree rotation of the welding gun. The utility model has the characteristics of simple structure, technique threshold are low, easily operation and use to can make welder rotate wantonly and realize multi-angle welding, and then improve welding efficiency.
Description
Technical Field
The utility model belongs to the technical field of automatic weld and arm design, concretely relates to be used for automatic weld's multi freedom arm.
Background
The welding has the characteristics of good sealing performance, high connection strength, strong adaptability, high production efficiency and the like, and is widely applied to connection of large-scale equipment such as pressure vessels and the like and structural members. Therefore, the quality of the welding often determines the service life and the safety of the part. The development of welding technology has gone through the development processes from arc welding, oxygen gas welding, resistance welding, submerged arc welding, gas metal arc welding, flux-cored wire arc welding, and then laser and electron beam welding; during this process researchers are constantly exploring improvements in welding technology, from manual to automated. Nowadays, in welding technology, people usually use a mechanical arm to replace manual welding, so that labor can be saved.
However, the existing mechanical arm is used for welding, welding at a single angle can be usually carried out, a large amount of time is needed for welding a complex structure needing multi-angle welding, welding efficiency is reduced, and meanwhile welding quality of a difficult position cannot be guaranteed. In addition, the overall versatility of the conventional robot arm for welding is not high, because of the degree of freedom of the robot arm.
For example, a welding device, especially a mechanical arm of a welding machine, described in chinese patent application No. CN 201611185086.5, includes a column, a fixed arm, an adjusting arm, a welding arm, a connecting plate, an angle adjusting device, a welding gun fixing seat, and a welding gun; the one end of fixed arm is fixed on the stand, and the other end of fixed arm passes through angle adjusting device to be connected with the one end of adjustment arm, the other end of adjustment arm passes through angle adjusting device to be connected with the one end of welding arm, the other end of welding arm is equipped with the welder fixing base, be equipped with welder on the welder fixing base. Although the welding gun has the advantages of simple and reliable structure, convenience in adjustment, wide application range, low cost and the like, the welding gun has the defect that welding wires can only be slowly and uniformly conveyed to the welding gun head for welding, but the wire discharging gun and the welding gun can not synchronously move, so that the aim of accurate and efficient welding is fulfilled.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome prior art, use current arm can only carry out the welding of single angle, need spend a large amount of times to the complicated structure that needs multi-angle welding and weld, reduced welding efficiency, the commonality is poor, also can't guarantee the problem to the welding quality of difficult position simultaneously, provide a simple structure, the technical threshold is low, easily operation and use, can realize multi-angle welding, improve the multi freedom arm that is used for automatic weld of welding efficiency.
In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:
the multi-degree-of-freedom mechanical arm for automatic welding comprises a base, a vertical rotating shaft arranged on the base, a rotating base arranged on the vertical rotating shaft, a horizontal rotating shaft arranged on the rotating base, a rotating arm arranged on the horizontal rotating shaft, a connecting rotating ball arranged at the tail end of the rotating arm and a welding gun arranged on the connecting rotating ball; the base is connected with the rotating base through a vertical rotating shaft; the welding gun is connected with the rotating arm through a connecting rotating bead, and the connecting rotating bead is used for realizing the multi-freedom-degree rotation of the welding gun.
Preferably, the welding gun includes a welding gun nozzle and a tungsten needle inserted into the welding gun nozzle and fixed.
Preferably, the welding torch nozzle is further provided with a shielding gas for simultaneously discharging during welding.
Preferably, the welding gun nozzle is connected with the rotating arm through a connecting rotating ball.
Preferably, the contact surface of the vertical rotating shaft and the base and the contact surface of the vertical rotating shaft and the rotating base are coated with lubricant.
Preferably, a control box for controlling the operation of the multi-degree-of-freedom mechanical arm for automatic welding is further mounted on the rotating base.
Preferably, the swinging boom includes first support arm, connecting axle and second support arm, first support arm articulates through connecting axle and second support arm, first support arm is connected with horizontal rotating shaft, the second support arm is connected with the connection commentaries on classics pearl.
Preferably, the connecting rotary bead is spherical in shape.
Compared with the prior art, the utility model, beneficial effect is: (1) the utility model makes up the defects of the traditional mechanical arm, ensures that the welding gun is not limited by the degree of freedom under the action of connecting the rotating beads, can rotate freely and realize multi-angle welding, greatly improves the welding efficiency, and provides conditions for welding workpieces with complex structures; (2) the utility model discloses simple structure, technique threshold are low, easily operation and use.
Drawings
Fig. 1 is a schematic structural view of the multi-degree-of-freedom mechanical arm for automatic welding according to the present invention;
fig. 2 is a schematic view of a partial structure of the multi-degree-of-freedom mechanical arm for automatic welding according to the present invention.
In the figure: the welding gun comprises a base 1, a vertical rotating shaft 2, a rotating base 3, a tungsten needle 4, a welding gun nozzle 5, a connecting rotating ball 6, a rotating arm 7, a horizontal rotating shaft 8 and a control box 9.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, the following description will explain embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
Example 1:
the multi-degree-of-freedom mechanical arm for automatic welding shown in fig. 1 comprises a base 1, a vertical rotating shaft 2 arranged on the base, a rotating base 3 arranged on the vertical rotating shaft, a horizontal rotating shaft 8 arranged on the rotating base, a rotating arm 7 arranged on the horizontal rotating shaft, a connecting rotating ball 6 arranged at the tail end of the rotating arm and a welding gun arranged on the connecting rotating ball; the base is connected with the rotating base through a vertical rotating shaft; the welding gun is connected with the rotating arm through a connecting rotating bead, and the connecting rotating bead is used for realizing the multi-freedom-degree rotation of the welding gun. Wherein, rotating base drives horizontal rotating shaft and is used for controlling welder's horizontal direction of rotation, and the swinging boom is used for controlling welder's vertical direction of rotation. In addition, the connecting rotating beads are spherical, and the spherical shape can provide convenience for the multi-angle rotation of the welding gun.
Further, as shown in fig. 2, the welding torch includes a torch nozzle 5 and a tungsten needle 4 inserted into the torch nozzle and fixed. The welding gun nozzle is connected with the rotating arm through a connecting rotating ball. The connecting rotating ball is a sphere, so that the multi-degree-of-freedom rotation of the welding gun can be realized, and conditions are provided for welding of complex weldment.
Furthermore, the welding gun nozzle is internally provided with protective gas which is used for spraying out during welding. Shielding gas is used to shield metal droplets during welding, and has an important role in the productivity and quality of the weld. The shielding gas prevents oxidation of the solidifying molten weld, and also blocks impurities and moisture in the air from weakening the weld's corrosion resistance, creating porosity and weakening the weld's durability by altering the geometric characteristics of the weld. The shielding gas also enables the torch to be cooled.
Further, still install the control box 9 that is used for controlling the multi freedom arm operation that is used for automatic weld on the rotating base, be provided with singlechip and drive module in the control box, drive module is connected with the singlechip electricity, rotating base, horizontal rotating shaft and swinging boom all with drive module electric connection. The rotating base, the horizontal rotating shaft and the rotating arm are controlled by the single chip microcomputer, and the driving module is used for enabling the rotating base, the horizontal rotating shaft and the rotating arm to operate.
Furthermore, the contact surface between the vertical rotating shaft and the base and the contact surface between the vertical rotating shaft and the rotating base are coated with lubricant. The lubricant coated on each contact surface can reduce the friction resistance between each part in the operation process, reduce the loss of each part and prolong the service life.
Further, the swinging boom includes first support arm, connecting axle and second support arm, first support arm articulates through connecting axle and second support arm, first support arm is connected with horizontal rotating shaft, the second support arm is connected with the connection commentaries on classics pearl. The two-section design enables the rotating arm to more accurately control and adjust the rotation of the welding gun in the vertical direction.
The utility model discloses a working method and principle are:
the positioning of the welding gun is realized through a rotary base, a horizontal rotary shaft, a rotary arm, a connecting rotary bead and a control box, the rotary base drives the horizontal rotary shaft to be mainly used for adjusting the positioning of the welding gun on a horizontal plane, the rotary arm is mainly used for adjusting the positioning of the welding gun in the vertical direction, and the connecting rotary bead is mainly used for enabling the welding gun to rotate in multiple degrees of freedom so as to adjust the welding angle direction of the welding gun; the adjusting modes are controlled and realized through the control box.
Additionally, the utility model discloses can also set up the slider in the bottom of base, set up the guide rail bottom the slider, slider and guide rail sliding connection, slider and base fixed connection. The welding gun moves along the direction of the welding seam by moving the sliding block on the guide rail.
The utility model makes up the defects of the traditional mechanical arm, ensures that the welding gun is not limited by the degree of freedom under the action of connecting the rotating beads, can rotate freely and realize multi-angle welding, greatly improves the welding efficiency, and provides conditions for welding workpieces with complex structures; the utility model discloses simple structure, technique threshold are low, easily operation and use.
The foregoing has been a detailed description of the preferred embodiments and principles of the present invention, and it will be apparent to those skilled in the art that variations may be made in the specific embodiments based on the concepts of the present invention, and such variations are considered as within the scope of the present invention.
Claims (8)
1. The multi-degree-of-freedom mechanical arm for automatic welding is characterized by comprising a base, a vertical rotating shaft arranged on the base, a rotating base arranged on the vertical rotating shaft, a horizontal rotating shaft arranged on the rotating base, a rotating arm arranged on the horizontal rotating shaft, a connecting rotating bead arranged at the tail end of the rotating arm and a welding gun arranged on the connecting rotating bead; the base is connected with the rotating base through a vertical rotating shaft; the welding gun is connected with the rotating arm through a connecting rotating bead, and the connecting rotating bead is used for realizing the multi-freedom-degree rotation of the welding gun.
2. The multi-degree-of-freedom mechanical arm for automatic welding according to claim 1, wherein the welding gun comprises a welding gun nozzle and a tungsten needle, and the tungsten needle is inserted into the welding gun nozzle and fixed.
3. The multi-degree-of-freedom mechanical arm for automatic welding as claimed in claim 2, wherein a shielding gas is further provided in the nozzle of the welding gun for simultaneous ejection during welding.
4. The multi degree of freedom robotic arm for automated welding as defined in claim 2, wherein the torch tip is connected to the spinner arm by a connecting rotating ball.
5. The multi-degree-of-freedom mechanical arm for automatic welding according to any one of claims 1 to 4, wherein the contact surface of the vertical rotating shaft and the base and the contact surface of the vertical rotating shaft and the rotating base are coated with a lubricant.
6. The multi-degree-of-freedom mechanical arm for automatic welding according to claim 1, wherein a control box for controlling the operation of the multi-degree-of-freedom mechanical arm for automatic welding is further installed on the rotating base.
7. The multi-degree-of-freedom mechanical arm for automatic welding according to claim 1, wherein the rotating arm comprises a first supporting arm, a connecting shaft and a second supporting arm, the first supporting arm is hinged to the second supporting arm through the connecting shaft, the first supporting arm is connected with the horizontal rotating shaft, and the second supporting arm is connected with the connecting rotating ball.
8. The multi-degree-of-freedom mechanical arm for automatic welding according to any one of claims 1-4, wherein the connecting rotating balls are spherical in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022308338.7U CN213560723U (en) | 2020-10-16 | 2020-10-16 | Multi-degree-of-freedom mechanical arm for automatic welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022308338.7U CN213560723U (en) | 2020-10-16 | 2020-10-16 | Multi-degree-of-freedom mechanical arm for automatic welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213560723U true CN213560723U (en) | 2021-06-29 |
Family
ID=76524705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022308338.7U Expired - Fee Related CN213560723U (en) | 2020-10-16 | 2020-10-16 | Multi-degree-of-freedom mechanical arm for automatic welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213560723U (en) |
-
2020
- 2020-10-16 CN CN202022308338.7U patent/CN213560723U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210629 |
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| CF01 | Termination of patent right due to non-payment of annual fee |