CN217832424U

CN217832424U - Head rotation protection assembly of welding robot

Info

Publication number: CN217832424U
Application number: CN202221692356.2U
Authority: CN
Inventors: 沙大淇
Original assignee: Harbin Jusheng Technology Automation Co ltd
Current assignee: Harbin Jusheng Technology Automation Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-11-18
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses a head rotation protection component of a welding robot, which comprises a bearing sleeve, wherein a first double-shaft motor is fixedly arranged on the inner wall of the middle end of the bearing sleeve, an output shaft of the first double-shaft motor is connected with an mechanical arm, and a dust removal mechanism and a protection mechanism are arranged in the bearing sleeve; the dust removing mechanism comprises a bearing, a driven gear, a second driving motor, a transmission gear and a fan blade, wherein the bearing is sleeved on the peripheral surface of an output shaft of the first double-shaft motor, and the driven gear is sleeved on the outer wall of one side of the bearing close to the center of the bearing sleeve; the protection mechanism comprises an arc-shaped rubber plate, a supporting spring, a limiting column and an assembling spring, the arc-shaped rubber plate is arranged on the outer peripheral face of the output shaft of the first double-shaft motor in a surrounding mode, the arc-shaped rubber plate movably extends to the outer wall of one end inside the bearing sleeve and is provided with a containing hole, and one end of the supporting spring is connected with the hole wall on one side of the containing hole. The utility model provides the high protective effect and the dustproof effect of robot head.

Description

Welding robot head rotation protection subassembly

Technical Field

The utility model relates to a welding robot technical field, in particular to welding robot head rotation protection subassembly.

Background

With the rapid development of electronic technology, computer technology, numerical control and robotics, various robots for welding (including cutting and painting) are also widely available. According to the definition of the international standardization organization industrial robot, which belongs to the standard welding robot, the industrial robot is a multipurpose, reprogrammable automatic control manipulator with three or more programmable axes for the industrial automation field.

The welding robot in the prior art basically belongs to a joint robot, the part between a base and the head of the robot is a plurality of cantilevers, the head of the robot is mostly an assembly for controlling the rotation of a mechanical arm, a welding gun (clamp) is assembled on the mechanical arm, the joint of the mechanical arm is exposed when the head of the robot rotates, the joint of the mechanical arm and a driving shaft on the head of the robot is fragile, the mechanical arm is easy to fall off and deform due to stress impact, dust and sundries are accumulated in a rotating chamber of the driving shaft, and the smoothness of the mechanical arm during rotation is easy to influence.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a welding robot head rotation protection subassembly, can effectively solve among the prior art welding and all belong to joint robot basically with the robot, the part that is located between base and the robot head is a plurality of cantilevers, the robot head is mostly control arm pivoted subassembly, be equipped with welder (pincers) on the arm, the joint of arm exposes outside when the robot head rotates, the arm is comparatively fragile with the drive shaft connection department on the robot head, the atress strikes the variant that very easily drops, dust debris are piled up the rotation cavity that gets into the drive shaft and also are influenced the problem of the smooth degree when the arm rotates easily.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme: a head rotation protection assembly of a welding robot comprises a bearing sleeve, wherein a first double-shaft motor is fixedly arranged on the inner wall of the middle end of the bearing sleeve, a mechanical arm is connected to an output shaft of the first double-shaft motor, and a dust removal mechanism and a protection mechanism are arranged in the bearing sleeve;

the dust removing mechanism comprises a bearing, a driven gear, a second driving motor, a transmission gear and a fan blade, wherein the bearing is sleeved on the outer peripheral surface of an output shaft of the first double-shaft motor, the driven gear is sleeved on the outer wall of one side, close to the center of the bearing sleeve, of the bearing, the second driving motor is fixedly arranged on the inner wall of the middle end of the bearing sleeve and is parallel to the first double-shaft motor, the transmission gear is fixedly arranged on the output shaft of the second driving motor, the transmission gear is meshed with the driven gear, the fan blade is sleeved on the outer wall of the other side, far away from the center of the bearing sleeve, of the bearing, and the driven gear and the fan blade can rotate on the output shaft of the first double-shaft motor by virtue of the bearing;

protection machanism includes arc offset plate, supporting spring, spacing post and montage spring, the locating hole has been seted up on the bearing sleeve outer peripheral face, the arc offset plate encircles the setting on the outer peripheral face of first double axle motor output shaft, and the arc offset plate activity extends to and has seted up on the one end outer wall of bearing sleeve inside and accomodate the hole, supporting spring one end with accomodate hole one side pore wall and be connected, spacing post one end is connected with the supporting spring other end, spacing post other end activity extends to in the locating hole, the montage spring is fixed to be set up in arc offset plate plane one side, and the output shaft and the arm of first double axle motor all can rotate in the arc offset plate inboard.

Preferably, a partition board which is matched with the first double-shaft motor and the second driving motor to fix is arranged on the inner wall of the middle end of the bearing sleeve, and a through groove is formed in the partition board.

Preferably, the bearing supports are provided with two bearing supports and symmetrically arranged on two output shafts of the first double-shaft motor.

Preferably, the driven gear, the second driving motor, the transmission gear and the fan blade are all arranged in one-to-one correspondence with the bearing bearings.

Preferably, the arc-shaped rubber plates are divided into two groups, and the two groups of arc-shaped rubber plates are symmetrically arranged at two ends of the bearing sleeve.

Preferably, the support springs are divided into four groups, eight support springs are arranged on each arc-shaped rubber plate, a group of support springs is correspondingly arranged on each arc-shaped rubber plate, and the positioning holes, the accommodating holes, the limiting posts and the assembling springs are all arranged in a one-to-one correspondence manner with the support springs.

Preferably, a support column is connected to the outer peripheral surface of the middle end of the bearing sleeve.

Compared with the prior art, the utility model relates to a welding robot head rotation protection subassembly has following beneficial effect:

in the utility model, the head of the welding robot is formed by arranging the bearing sleeve and the supporting columns, the first double-shaft motor in the bearing sleeve can control the rotation adjustment of two mechanical arms by utilizing two output shafts of the first double-shaft motor, before the installation of the mechanical arms, after the deformation compression of the supporting spring is matched with the displacement of the limiting columns to the depth of the accommodating holes by pressing the limiting columns on the arc-shaped rubber plate, one end of the arc-shaped rubber plate without obstruction can be inserted into the bearing sleeve, after the accommodating holes on the arc-shaped rubber plate are coincided with the positioning holes on the outer peripheral surface of the bearing sleeve, the deformation recovery of the supporting spring without resistance can push a plurality of limiting columns into the positioning holes one by one, the arc-shaped rubber plate can complete the rapid limiting fixation, two groups of arc-shaped rubber plates symmetrically installed at the two ends of the bearing sleeve can carry out the encircling enclosure on the connecting part of the output shafts of the first double-shaft motor and the mechanical arms, the arc-shaped rubber plates utilize the viscoelastic characteristic to absorb shock from external force impact, and meanwhile, the assembly springs arranged on one side of the plane of the arc-shaped rubber plates can further offset the impact force between two adjacent arc-shaped rubber plates, the second driving motor parallel to the first double-shaft motor can utilize the output shaft of the second driving motor to control the transmission gear to rotate, the driven gear meshed with the transmission gear rotates along with the transmission gear, the bearing sleeved on the outer peripheral surface of the output shaft of the first double-shaft motor can be matched with the driven gear to drive the fan blade to rotate by itself, the wind power generated by the rotation of the fan blade can blow external dust sundries away from the bearing sleeve to avoid the accumulation and blockage of the dust sundries, and the whole protection effect and the dustproof effect of the head of the robot are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the head rotation protection assembly of the welding robot of the present invention;

fig. 2 is a schematic top view of the head rotation protection assembly of the welding robot of the present invention;

FIG. 3 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 2 according to the present invention;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 3 according to the present invention;

fig. 5 is a schematic cross-sectional view of the utility model at C-C in fig. 3.

In the drawings, the reference numbers indicate the following list of parts:

1. a load bearing sleeve; 2. a first dual-axis motor; 3. a mechanical arm; 4. a load bearing; 5. a driven gear; 6. a second drive motor; 7. a transmission gear; 8. a fan blade; 9. an arc-shaped rubber plate; 10. a support spring; 11. a limiting post; 12. assembling a spring; 13. a partition plate; 14. a flow through groove; 15. and (7) supporting the column.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the utility model relates to a welding robot head rotation protection assembly, which comprises a bearing sleeve 1, wherein a first double-shaft motor 2 is fixedly arranged on the inner wall of the middle end of the bearing sleeve 1, a mechanical arm 3 is connected on the output shaft of the first double-shaft motor 2, and a dust removal mechanism and a protection mechanism are arranged inside the bearing sleeve 1;

the dust removing mechanism comprises a bearing 4, a driven gear 5, a second driving motor 6, a transmission gear 7 and a fan blade 8, the bearing 4 is sleeved on the outer peripheral surface of the output shaft of the first double-shaft motor 2, the driven gear 5 is sleeved on the outer wall of one side of the bearing 4 close to the center of the bearing sleeve 1, the second driving motor 6 is fixedly arranged on the inner wall of the middle end of the bearing sleeve 1 and is parallel to the first double-shaft motor 2, the transmission gear 7 is fixedly arranged on an output shaft of the second driving motor 6, the transmission gear 7 is meshed with the driven gear 5, the fan blade 8 is sleeved on the outer wall of the other side of the bearing 4 away from the center of the bearing sleeve 1, and the driven gear 5 and the fan blade 8 can rotate on the output shaft of the first double-shaft motor 2 by means of the bearing 4;

protection machanism includes arc offset plate 9, supporting spring 10, spacing post 11 and montage spring 12, the locating hole has been seted up on bearing sleeve 1 outer peripheral face, arc offset plate 9 encircles the setting on the outer peripheral face of 2 output shafts of first double-shaft motor, and the activity of arc offset plate 9 extends to and bears and has seted up on the one end outer wall of sleeve 1 inside and accomodate the hole, supporting spring 10 one end with accomodate hole one side pore wall and be connected, 11 one end of spacing post is connected with the supporting spring 10 other end, 11 other end activities of spacing post extend to in the locating hole, montage spring 12 is fixed to be set up in 9 plane one sides of arc offset plate, output shaft and the arm 3 of first double-shaft motor 2 all can rotate in arc offset plate 9 inboards.

Furthermore, a partition plate 13 which is matched with the first double-shaft motor 2 and the second driving motor 6 for fixing is arranged on the inner wall of the middle end of the bearing sleeve 1, and a through groove 14 is formed in the partition plate 13.

Further, the two bearing bearings 4 are symmetrically disposed on the two output shafts of the first dual-shaft motor 2.

Furthermore, the driven gear 5, the second driving motor 6, the transmission gear 7 and the fan blade 8 are all arranged in one-to-one correspondence with the bearing 4.

Furthermore, the arc-shaped rubber plates 9 are divided into two groups, and the two groups of arc-shaped rubber plates 9 are symmetrically arranged at two ends of the bearing sleeve 1.

Furthermore, the supporting springs 10 are divided into four groups, each arc-shaped rubber plate 9 is correspondingly provided with a group of supporting springs 10, and the positioning holes, the accommodating holes, the limiting posts 11 and the assembling springs 12 are correspondingly arranged with the supporting springs 10.

Further, a support column 15 is connected to the outer peripheral surface of the middle end of the bearing sleeve 1.

The working principle of the utility model is as follows:

when the welding robot is used by personnel, the bearing sleeve 1 and the support column 15 are arranged to form the head part of the welding robot, the first double-shaft motor 2 in the bearing sleeve 1 can control the two mechanical arms 3 to rotate and adjust by utilizing two output shafts of the first double-shaft motor, before the mechanical arms 3 are installed, the limit column 11 on the arc-shaped rubber plate 9 is pressed, after the support spring 10 deforms and is matched with the limit column 11 to translate towards the depth of the accommodating hole, one end of the arc-shaped rubber plate 9 which loses obstruction can be inserted into the bearing sleeve 1, when the accommodating hole on the arc-shaped rubber plate 9 is superposed with the positioning hole on the outer peripheral surface of the bearing sleeve 1, the support spring 10 which loses resistance deforms and recovers and pushes the limit columns 11 into the positioning hole one by one, the arc-shaped rubber plate 9 completes rapid limiting and fixing, two groups of arc-shaped rubber plates 9 symmetrically arranged at two ends of the bearing sleeve 1 surround the connecting part of the output shaft of the first double-shaft motor 2 and the mechanical arm 3, the arc-shaped rubber plates 9 absorb external force impact by using viscoelasticity characteristics, meanwhile, an assembling spring 12 arranged on one side of the plane of the arc-shaped rubber plates 9 further offsets impact force between two adjacent arc-shaped rubber plates 9, a second driving motor 6 parallel to the first double-shaft motor 2 operates by using an output shaft thereof to control a transmission gear 7 to rotate, a driven gear 5 meshed with the transmission gear 7 rotates along with the transmission gear, a bearing 4 sleeved on the outer peripheral surface of the output shaft of the first double-shaft motor 2 is matched with the driven gear 5 to drive a fan blade 8 to rotate automatically, and wind power generated by rotation of the fan blade 8 blows external dust and sundries away from the bearing sleeve 1 to avoid dust and sundries accumulation and blockage.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The head rotation protection assembly of the welding robot is characterized by comprising a bearing sleeve (1), wherein a first double-shaft motor (2) is fixedly arranged on the inner wall of the middle end of the bearing sleeve (1), an output shaft of the first double-shaft motor (2) is connected with a mechanical arm (3), and a dust removal mechanism and a protection mechanism are arranged inside the bearing sleeve (1);

the dust removing mechanism comprises a bearing (4), a driven gear (5), a second driving motor (6), a transmission gear (7) and fan blades (8), wherein the bearing (4) is sleeved on the outer peripheral surface of an output shaft of the first double-shaft motor (2), the driven gear (5) is sleeved on the outer wall of one side, close to the center of the bearing sleeve (1), of the bearing (4), the second driving motor (6) is fixedly arranged on the inner wall of the middle end of the bearing sleeve (1) and is parallel to the first double-shaft motor (2), the transmission gear (7) is fixedly arranged on the output shaft of the second driving motor (6), the transmission gear (7) is meshed with the driven gear (5), and the fan blades (8) are sleeved on the outer wall of the other side, far away from the center of the bearing sleeve (1), of the bearing (4);

protection machanism includes arc offset plate (9), supporting spring (10), spacing post (11) and montage spring (12), the locating hole has been seted up on bearing sleeve (1) outer peripheral face, arc offset plate (9) encircle to set up on the outer peripheral face of first double-shaft motor (2) output shaft, and arc offset plate (9) activity extends to and bears and has seted up on the one end outer wall of sleeve (1) inside and accomodate the hole, supporting spring (10) one end is connected with accomodate hole one side pore wall, spacing post (11) one end is connected with supporting spring (10) the other end, spacing post (11) other end activity extends to in the locating hole, montage spring (12) are fixed to be set up in arc offset plate (9) plane one side.

2. The welding robot head rotation protection assembly of claim 1, wherein: the bearing sleeve is characterized in that a partition plate (13) which is matched with the first double-shaft motor (2) and the second driving motor (6) to fix is arranged on the inner wall of the middle end of the bearing sleeve (1), and a through groove (14) is formed in the partition plate (13).

3. The welding robot head rotation protection assembly of claim 1, wherein: the two bearing bearings (4) are symmetrically arranged on two output shafts of the first double-shaft motor (2).

4. The welding robot head rotation protection assembly of claim 3, wherein: the driven gear (5), the second driving motor (6), the transmission gear (7) and the fan blade (8) are all arranged in one-to-one correspondence with the bearing bearings (4).

5. The welding robot head rotation protection assembly of claim 1, wherein: the arc-shaped rubber plates (9) are four and equally divided into two groups, and the two groups of arc-shaped rubber plates (9) are symmetrically arranged at two ends of the bearing sleeve (1).

6. The welding robot head rotation protection assembly of claim 5, wherein: the supporting springs (10) are divided into four groups, eight groups of supporting springs are arranged on each arc-shaped rubber plate (9), a group of supporting springs (10) are correspondingly arranged on each arc-shaped rubber plate, and the positioning holes, the accommodating holes, the limiting columns (11) and the assembling springs (12) are all arranged in one-to-one correspondence with the supporting springs (10).

7. The welding robot head rotation protection assembly of claim 1, wherein: the outer peripheral surface of the middle end of the bearing sleeve (1) is connected with a supporting column (15).