A welding manipulator convenient for replacing welding gun

Abstract

The utility model relates to the technical field of welding manipulators, and in particular to a welding manipulator convenient for replacing welding guns, comprising a mechanical arm with a mounting plate at the end thereof and a welding gun body with a hose at one end thereof, the mounting plate being provided with a through hole convenient for the hose to pass through, a positioning ring being fixedly connected to the outer surface of one end of the welding gun body close to the hose, a plurality of spring clips being fixedly connected to one end of the mounting plate and being evenly arranged circumferentially along the axis of the mounting plate, a groove corresponding to the spring clips being provided on the outer wall of the positioning ring, a ring sleeve having a threaded outer wall being fixedly connected to the end face of the mounting plate, a cover body having a threaded inner wall being sleeved on the welding gun body, the angle locking of the welding gun body being realized by arranging the spring clip and the positioning ring having the slot, and the welding gun body being stably connected to the mounting disk on the mechanical arm by arranging the ring sleeve and the cover body having the threaded slot.

Description

Technical Field

[0001] The utility model relates to the technical field of welding manipulators, in particular to a welding manipulator which is convenient for replacing welding guns. Background Art

[0002] The welding manipulator uses a mechanical arm to drive the welding gun to move, so that the welding gun can perform automatic welding work under the drive of the mechanical arm, which can not only greatly improve production efficiency, but also reduce the labor workload of workers. Compared with manual welding, the welding manipulator can work for a long time without stopping. The uninterrupted welding work greatly reduces the service life of the welding gun. When the welding gun is damaged, it needs to be replaced. The existing connection method between the welding gun and the mechanical arm is mostly connected through two flanges, one of which is fixed to the mechanical arm, and the other is fixed to the mechanical arm. After aligning the two flanges, the corresponding connecting holes on the two flanges are fixed with bolts to achieve fixation. During the disassembly process, due to the large number of connecting holes on the flange, it takes a long time to disassemble using a screwdriver. Based on the above situation, it is necessary to design a connection structure for the welding gun and the mechanical arm to facilitate the replacement of the manipulator on the mechanical arm. Utility Model Content

[0003] The utility model provides a welding manipulator which is convenient for replacing a welding gun, so as to solve the problem that a welding gun body on a manipulator arm in the prior art is inconvenient to replace.

[0004] The technical problem solved by the utility model is achieved by the following technical solutions:

[0005] A welding manipulator for facilitating replacement of welding guns comprises a mechanical arm with a mounting plate at the end thereof and a welding gun body with a hose at one end thereof, the mounting plate being provided with a through hole for facilitating the passage of the hose, a positioning ring being fixedly connected to the outer surface of one end of the welding gun body close to the hose, a plurality of spring clips being fixedly connected to one end of the mounting plate and being evenly spaced and circumferentially arranged along the axis of the mounting plate, a slot corresponding to the spring clips being provided on the outer wall of the positioning ring, a ring sleeve having a threaded outer wall being fixedly connected to the end surface of the mounting plate, and a cover body having a threaded inner wall being sleeved on the welding gun body.

[0006] Preferably, a handle is fixedly connected to the outer surface of the cover body.

[0007] Preferably, the spring clip is fixed to the mounting plate via a ring plate, and the diameter of the ring sleeve is larger than the diameter of the mounting plate.

[0008] Preferably, the spring clip includes an elastic plate-like portion and an arc-shaped protrusion formed at one end of the plate-like portion, and the slot includes a rib groove portion for accommodating the plate-like portion and an arc groove portion cooperating with the arc-shaped protrusion portion.

[0009] Preferably, one of the slots and one of the reed buckles are provided with marking numbers.

[0010] Preferably, the number of the reed buckles and slots is not less than four.

[0011] The beneficial effects of the utility model are as follows: by providing a spring buckle and a positioning ring with a slot, the angle locking of the welding gun body can be achieved, and by providing a ring sleeve and a cover body with a thread, the welding gun body can be stably connected to the mounting plate on the robot arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the implementation scheme of the utility model or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 This is a schematic diagram of the first state of the prior art of the utility model:

[0014] Figure 2 This is a schematic diagram of the second state of the prior art of the utility model:

[0015] Figure 3 This is a schematic diagram of the structure of the first state of the utility model:

[0016] Figure 4 It is a structural schematic diagram of the second state of the utility model;

[0017] Figure 5 A schematic diagram of the second viewing angle structure of the second state of the utility model;

[0018] Figure 6 It is a cross-sectional view of the utility model;

[0019] Figure 7 It is a schematic diagram of the structure of the cooperation between the spring buckle and the positioning ring of the utility model.

[0020] In the figure, 1, mechanical arm; 2, mounting cover; 3, through hole; 4, first flange; 5, welding gun body; 6, second flange; 7, hose; 8, bolt; 9, spring buckle; 901, ring body; 902, plate-like portion; 903, arc-shaped protrusion; 10, positioning ring; 11, slot; 1101, rib groove portion; 1102, arc groove portion; 12, ring sleeve; 13, cover body; 14, handle; 15, marking number. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0022] Reference Figure 1 and Figure 2 The existing robot arm 1 is provided with a mounting plate 2 with a through hole 3, one end of the welding gun body 5 is connected with a hose 7, a first flange 4 is fixed on the mounting plate 2, and a second flange 6 is provided near the connection between the welding gun body 5 and the hose 7. When the welding gun body 5 is installed on the robot arm 1, the hose 7 is first aligned with the through hole 3 on the mounting plate 2 and inserted, and then the first flange 4 and the second flange 6 are aligned. A plurality of connecting holes are evenly spaced and circumferentially arranged on the first flange 4 and the second flange 6, and the connecting holes on the first flange 4 and the second flange 6 are fixed by bolts 8. The holes are aligned and locked, so that the welding gun body 5 is installed on the robot arm 1. The problem with the existing technology is that since the existing robot arm 1 and the welding gun body 5 are locked by multiple bolts 8, when the welding gun body 5 needs to be replaced, it is necessary to use a screwdriver to remove the bolts 8 one by one. This process must rely on tools, and the disassembly and installation are relatively time-consuming. The above is an introduction to the prior art of the utility model. Based on the deficiencies of the prior art, the utility model makes the following improvements to the connection structure between the robot arm 1 and the welding gun body 5, so that the welding gun body 5 and the robot arm 1 are easy to disassemble and install.

[0023] like Figure 3-Figure 6 As shown, a welding manipulator for convenient replacement of welding guns comprises a mechanical arm 1 with a mounting plate 2 at the end thereof and a welding gun body 5 with a hose 7 at one end thereof, the mounting plate 2 being provided with a through hole 3 for the hose 7 to pass through, a positioning ring 10 being fixedly connected to the outer surface of one end of the welding gun body 5 close to the hose 7, a plurality of spring clips 9 being fixedly connected to one end of the mounting plate 2 and being evenly spaced circumferentially arranged along the axis of the mounting plate 2, a card groove 11 corresponding to the spring clips 9 being provided on the outer wall of the positioning ring 10, a ring sleeve 12 having a threaded outer wall being fixedly connected to the end surface of the mounting plate 2, and a cover body 13 having a threaded inner wall being sleeved on the welding gun body 5.

[0024] The above scheme is an improvement over the prior art mainly in that the first flange on the mounting plate 2 in the prior art is replaced with a plurality of spring buckles 9 and a ring sleeve 12 with a threaded outer wall, and the second flange 6 on the welding gun body 5 in the prior art is replaced with a positioning ring 10 with a slot 11 on the outer surface and a cover 13 which is sleeved on the outside of the welding gun body 5 and has a threaded inner wall. During the specific installation, the hose 7 of the welding gun body 5 is first aligned with the through hole 3 on the mounting plate 2 and inserted, and then the slot 11 of the positioning ring 10 on the welding gun body 5 is aligned with the mounting plate 2. The spring buckle 9 on the disk 2 is aligned so that the spring buckle 9 is buckled inside the slot 11 to lock the angle between the welding gun body 5 and the robot arm 1, and then the cover body 13 is screwed onto the ring sleeve 12 by threaded cooperation. In this way, the welding gun body 5 is fixed to the robot arm 1. Compared with the traditional way of fixing the first flange 4 and the second flange 6 with bolts 8, its installation is more convenient and faster. Moreover, due to the large size of the cover body 13, it can be installed and disassembled without the aid of external tools.

[0025] like Figure 3 As shown, a handle 14 is fixedly connected to the outer surface of the cover body 13 . By providing the handle 14 , the cover body 13 can be rotated more conveniently, so that the cover body 13 is easy to be threadedly installed and disassembled with the ring sleeve 12 .

[0026] like Figure 6 and Figure 7 As shown, the spring clip 9 is fixed to the mounting plate 2 via a ring plate 901 , and the diameter of the ring sleeve 12 is greater than the diameter of the mounting plate 2 .

[0027] The reed clip 9 is fixed to the mounting disk 2 via the ring plate 901, wherein the ring plate 901 and the mounting disk 2 can be fixed by welding, or the ring plate 901 and the mounting disk 2 can be fixed by an integral molding setting. The diameter of the ring sleeve 12 is larger than the diameter of the mounting disk 2, which can prevent the ring sleeve 12 from obstructing the positioning ring 10 and the reed clip 9 when they are locked.

[0028] The spring clip 9 includes an elastic plate-like portion 902 and an arc-shaped protrusion 903 formed at one end of the plate-like portion 902 , and the slot 11 includes a rib groove portion 1101 for accommodating the plate-like portion 902 and an arc groove portion 1102 matched with the arc-shaped protrusion 903 .

[0029] like Figure 7As shown, when the positioning ring 10 and the spring buckle 9 are locked, the positioning ring 10 is aligned with the ring plate 901 and moved. When one side of the positioning ring 10 contacts the arc-shaped protrusion 903 at the end of the spring buckle 9, the arc-shaped protrusion 903 is subjected to force to make the plate-like portion 902 bend outward. As the positioning ring 10 continues to move, the arc-shaped protrusion 903 moves inside the rib groove 1101 until the positioning ring 10 contacts the ring plate 901. At this time, the arc-shaped protrusion 903 is inside the arc groove 1102. At this time, the angle of the welding gun body 5 and the mounting plate 2 is locked. When the spring buckle 9 is separated from the positioning ring 10, the welding gun body 5 is directly pulled with force to move in a direction away from the ring plate 901. Since the arc-shaped protrusion 903 and the arc groove 1102 have arc surfaces, the two are easily separated when subjected to external force.

[0030] like Figure 7 As shown, one of the slots 11 and one of the reed buckles 9 are provided with a marking number 15. In order to facilitate the determination of the angle between the welding gun body 5 and the robot arm 1, a marking number 15 is provided on one of the reed buckles 9 and one of the slots 11. During installation, the slot 11 with the marking number 15 and the reed buckle 9 with the marking number 15 are aligned to ensure that the installation angle of the welding gun body 5 is locked.

[0031] Specifically, the number of the reed clips 9 and the slots 11 is not less than four. The arrangement of not less than four reed clips 9 and the slots 11 can stabilize the angle of the welding gun body 5 relative to the robot arm 1 .

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A welding manipulator for facilitating replacement of welding guns, comprising a mechanical arm (1) having a mounting plate (2) at one end and a welding gun body (5) having a hose (7) at one end, characterized in that: The mounting plate (2) is provided with a through hole (3) for facilitating the passage of the hose (7); a positioning ring (10) is fixedly connected to the outer surface of one end of the welding gun body (5) close to the hose (7); one end of the mounting plate (2) is fixedly connected to a plurality of spring clips (9) which are evenly spaced and circumferentially arranged along the axis of the mounting plate (2); a retaining groove (11) corresponding to the spring clips (9) is provided on the outer wall of the positioning ring (10); a ring sleeve (12) having a threaded outer wall is also fixedly connected to the end surface of the mounting plate (2); and a cover body (13) having a threaded inner wall is sleeved on the welding gun body (5).

2. A welding manipulator for convenient replacement of welding guns according to claim 1, characterized in that: A handle (14) is fixedly connected to the outer surface of the cover body (13).

3. A welding manipulator for convenient replacement of welding guns according to claim 1, characterized in that: The spring buckle (9) is fixed to the mounting plate (2) via a ring plate (901), and the diameter of the ring sleeve (12) is greater than the diameter of the mounting plate (2).

4. A welding manipulator for convenient replacement of welding guns according to claim 1, characterized in that: The spring buckle (9) comprises a plate-like portion (902) having elasticity and an arc-shaped protrusion (903) formed at one end of the plate-like portion (902), and the clamping groove (11) comprises a rib groove portion (1101) for accommodating the plate-like portion (902) and an arc groove portion (1102) cooperating with the arc-shaped protrusion (903).

5. The welding manipulator for facilitating replacement of welding guns according to claim 1, characterized in that: One of the slots (11) and one of the spring buckles (9) are provided with a marking number (15).

6. The welding manipulator for facilitating replacement of welding guns according to claim 1, characterized in that: The number of the reed buckles (9) and the slots (11) is not less than four.

Images