Welding gun anti-collision device for welding robot

Abstract

The utility model discloses a welding gun anti-collision device for a welding robot, and relates to the technical field of protective devices. The welding gun anti-collision device for the welding robot comprises a welding gun pipe and a nozzle arranged at the bottom end of the welding gun pipe. And the protection assembly comprises a first mounting ring and a second mounting ring which are fixedly arranged on the outer surface of the welding gun pipe, a sliding ring is arranged on the outer surface of the welding gun pipe in a sliding mode, and a first protection sleeve used for protecting the nozzle is fixedly arranged on the lower surface of the sliding ring. Through the arrangement of the protection assembly, the motor 307 can be started through an external controller, the first protection sleeve is driven to move downwards, the bottom end of the welding gun pipe and the nozzle are effectively wrapped and covered, and effective protection of the bottom end of the welding gun pipe and the nozzle is achieved; therefore, the defect that in the prior art, the nozzle 200 at the end of the welding gun pipe 100 is prone to being damaged due to unattended collision in the transporting, taking and assembling processes is effectively overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of protective devices, in particular to a welding gun anti-collision device for a welding robot. Background Art

[0002] A welding robot is an industrial robot engaged in welding. An existing patent discloses an anti-collision device for a welding robot, with patent publication number CN215509594U, which comprises: a welding gun barrel, fixed on a manipulator and used for welding workpieces; wherein, a sleeve for protecting the welding gun barrel is fixed to the outside of the welding gun barrel, a storage cavity for accommodating the welding gun barrel is opened inside the sleeve, and four limit plates for colliding with an external workpiece are distributed circumferentially on the outside of the sleeve; the sleeve and the limit plates surrounding the outside of the welding gun barrel can first contact the external workpiece, thereby avoiding the welding gun barrel being damaged due to direct collision with the external workpiece when the welding gun barrel collides with the external workpiece; the robot controller can control the robot to stop working after receiving a signal, thereby avoiding the welding gun being damaged due to the robot continuing to work after being hit, thereby achieving all-round protection for the welding gun barrel.

[0003] Regarding the above-mentioned related technologies, the inventors believe that there are the following defects: the welding gun anti-collision device can only protect the welding gun tube when the welding gun robot is in use, and the nozzle at the end of the welding gun tube is always exposed to the outside area during the transportation of the welding gun tube before assembly with the robot, and during the assembly process. Therefore, careless collisions during transportation, picking up and assembly can easily cause damage to the nozzle at the end of the welding gun tube, thereby affecting normal welding.

[0004] Therefore, we propose a welding robot welding gun anti-collision device to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model provides a welding gun anti-collision device for a welding robot, which solves the defect in the existing technology that careless collisions during transportation, picking up and assembly can easily cause damage to the nozzle at the end of the welding gun tube.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A welding robot welding gun anti-collision device, comprising:

[0007] A welding gun tube and a nozzle arranged at the bottom end of the welding gun tube;

[0008] A protective assembly is used to protect the welding gun tube and nozzle during transportation and assembly, and the protective assembly includes a first mounting ring and a second mounting ring respectively fixed on the outer surface of the welding gun tube, the outer surface of the welding gun tube is slidingly provided with a sliding ring, the lower surface of the sliding ring is fixed with a first protective sleeve for protecting the nozzle, an annular cavity is provided inside the first mounting ring, and the inner bottom wall of the annular cavity is provided with a threaded column extending to the lower surface of the first mounting ring and rotatably connected to the upper surface of the second mounting ring in a circular array, and the upper surface of the sliding ring is provided with a through hole for the threaded column to pass through, the inner wall of the through hole is fixed with an internal threaded sleeve threadedly connected to the outer surface of the threaded column, and the upper surface of the first mounting ring is provided with a motor for driving multiple threaded columns to rotate simultaneously.

[0009] Preferably, a second protective sleeve is fixedly provided on the upper surface of the first mounting ring, and the surfaces of the first protective sleeve and the second protective sleeve are both covered with rubber sleeves.

[0010] Preferably, a bellows expansion tube is provided between the first mounting ring and the second mounting ring, and two ends of the bellows expansion tube are fixedly connected to the lower surface of the first mounting ring and the upper surface of the second mounting ring respectively.

[0011] Preferably, a rotating tube is rotatably provided on the inner wall of the annular cavity, and a conical gear ring is fixedly provided on the inner ring surface of the rotating tube. The top ends of the plurality of threaded columns are fixedly provided with bevel gears, and the plurality of bevel gears are meshed with the bevel gear ring.

[0012] Preferably, the output end of the motor extends to the interior of the annular cavity and is fixedly provided with a driving gear disc, and the inner annular surface of the rotating tube is fixedly provided with a driven inner gear ring that meshes with the driving gear disc.

[0013] Preferably, a rim ring for limiting the position of the first protective sleeve is fixed to the bottom end of the first protective sleeve.

[0014] Beneficial effects

[0015] The utility model provides a welding gun anti-collision device for a welding robot. Compared with the prior art, it has the following beneficial effects:

[0016] The welding robot welding gun anti-collision device is provided with a protective component, so that during the transportation of the welding gun after production and the assembly with the robot, the motor 307 can be started by an external controller to drive the first protective sleeve to move downward and effectively wrap and cover the bottom end of the welding gun tube and the nozzle, thereby achieving effective protection for the bottom end of the welding gun tube and the nozzle, thereby effectively solving the defect in the prior art that the nozzle 200 at the end of the welding gun tube 100 can be easily damaged by inadvertent collisions during transportation, handling and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 A in the middle is an enlarged structural diagram;

[0020] Figure 4 For this utility model Figure 2 Enlarged structural diagram at point B in the middle.

[0021] In the picture:

[0022] 100. Welding gun barrel;

[0023] 200, nozzle;

[0024] 300, protective assembly; 301, first mounting ring; 302, second mounting ring; 303, sliding ring; 304, first protective sleeve; 305, threaded column; 306, internally threaded sleeve; 307, motor; 308, second protective sleeve; 309, rubber sleeve; 3010, corrugated telescopic tube; 3011, rotating tube; 3012, bevel gear ring; 3013, bevel gear; 3014, driving gear disc; 3015, driven internal gear ring; 3016, edging ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-4 The utility model provides a technical solution: a welding gun anti-collision device for a welding robot, comprising:

[0027] A welding gun tube 100 and a nozzle 200 disposed at the bottom end of the welding gun tube 100;

[0028] The protective assembly 300 is used to protect the welding gun barrel 100 and the nozzle 200 during transportation and assembly. The protective assembly 300 includes a first mounting ring 301 and a second mounting ring 302, each fixed to the outer surface of the welding gun barrel 100. A corrugated telescopic tube 3010 is provided between the first mounting ring 301 and the second mounting ring 302. The ends of the corrugated telescopic tube 3010 are respectively fixedly connected to the lower surface of the first mounting ring 301 and the upper surface of the second mounting ring 302. The provision of the corrugated telescopic tube 3010 can effectively protect the central portion of the welding gun barrel 100.

[0029] A sliding ring 303 is slidingly provided on the outer surface of the welding gun tube 100, and a first protective sleeve 304 for protecting the nozzle 200 is fixed on the lower surface of the sliding ring 303. The bottom end of the first protective sleeve 304 is fixed with an edge ring 3016 for limiting the first protective sleeve 304.

[0030] A second protective sleeve 308 is fixed to the upper surface of the first mounting ring 301 , and rubber sleeves 309 are sleeved on the surfaces of the first protective sleeve 304 and the second protective sleeve 308 , which effectively improves the protective performance of the first protective sleeve 304 and the second protective sleeve 308 .

[0031] An annular cavity is provided inside the first mounting ring 301, and a threaded column 305 extending to the lower surface of the first mounting ring 301 and rotatably connected to the upper surface of the second mounting ring 302 is provided on the inner bottom wall of the annular cavity in a circular array, and a through hole is provided on the upper surface of the sliding ring 303 for the threaded column 305 to pass through, and an internal threaded sleeve 306 is fixed on the inner wall of the through hole and threadedly connected to the outer surface of the threaded column 305. A motor 307 for driving several threaded columns 305 to rotate simultaneously is provided on the upper surface of the first mounting ring 301.

[0032] A rotating tube 3011 is rotatably provided on the inner wall of the annular cavity, and a conical gear ring 3012 is fixedly provided on the inner ring surface of the rotating tube 3011. Bevel gears 3013 are fixedly provided on the top ends of the plurality of threaded columns 305, and the plurality of bevel gears 3013 are meshed with the conical gear ring 3012. The rotation of the rotating tube 3011 drives the plurality of threaded columns 305 to rotate simultaneously.

[0033] The output end of the motor 307 extends to the inside of the annular cavity and is fixed with a driving gear disc 3014. The inner ring surface of the rotating tube 3011 is fixed with a driven inner gear ring 3015 that meshes with the driving gear disc 3014. The rotation of the motor 307 can drive the rotating tube 3011 to decelerate.

[0034] Among them, the welding robot uses a welding gun anti-collision device, which is equipped with a protective component 300. During the transportation and assembly of the welding gun with the robot after production, the motor 307 can be started by an external controller to drive the first protective sleeve 304 to move downward, and effectively wrap and cover the bottom end of the welding gun tube 100 and the nozzle 200, thereby achieving effective protection of the bottom end of the welding gun tube 100 and the nozzle 200, thereby effectively solving the defect in the prior art that the nozzle 200 at the end of the welding gun tube 100 is easily damaged by inadvertent collisions during transportation, picking up and assembly.

[0035] During operation, the welding gun can start the motor 307 through an external controller during the process of transportation and assembly with the robot after production. The rotation of the motor 307 drives the active gear disc 3014 to rotate. The rotation of the active gear disc 3014 drives the driven internal gear ring 3015 and the rotating tube 3011 to rotate. The rotation of the rotating tube 3011 drives the bevel gear ring 3012 to rotate. The rotation of the bevel gear ring 3012 drives the plurality of bevel gears 3013 and the threaded column 305 to rotate. The rotation of the threaded column 305 drives the internal threaded sleeve 306 to move downward, thereby driving the sliding ring 303 to move downward. The downward movement of the sliding ring 303 drives the first protective sleeve 304 to move downward, and effectively wraps and covers the bottom end of the welding gun tube 100 and the nozzle 200, thereby achieving effective protection for the bottom end of the welding gun tube 100 and the nozzle 200, thereby effectively solving the defect in the prior art that the nozzle 200 at the end of the welding gun tube 100 is easily damaged by inadvertent collision during transportation, picking up and assembly.

[0036] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A welding robot welding gun anti-collision device, characterized in that: include: A welding gun tube (100) and a nozzle (200) arranged at the bottom end of the welding gun tube (100); A protective assembly (300) is used to protect a welding gun tube (100) and a nozzle (200) during transportation and assembly. The protective assembly (300) comprises a first mounting ring (301) and a second mounting ring (302) respectively fixed on the outer surface of the welding gun tube (100). A sliding ring (303) is slidably provided on the outer surface of the welding gun tube (100). A first protective sleeve (304) for protecting the nozzle (200) is fixed on the lower surface of the sliding ring (303). The interior of the first mounting ring (301) is provided with a An annular cavity, wherein the inner bottom wall of the annular cavity is provided with a threaded column (305) extending to the lower surface of the first mounting ring (301) and rotatably connected to the upper surface of the second mounting ring (302), and the upper surface of the sliding ring (303) is provided with a through hole for the threaded column (305) to pass through, and the inner wall of the through hole is fixed with an internal threaded sleeve (306) threadedly connected to the outer surface of the threaded column (305), and the upper surface of the first mounting ring (301) is provided with a motor (307) for driving a plurality of threaded columns (305) to rotate simultaneously.

2. The welding robot welding gun anti-collision device according to claim 1, characterized in that: A second protective sleeve (308) is fixedly provided on the upper surface of the first mounting ring (301), and rubber sleeves (309) are provided on the surfaces of both the first protective sleeve (304) and the second protective sleeve (308).

3. The welding robot welding gun anti-collision device according to claim 1, characterized in that: A bellows expansion tube (3010) is provided between the first mounting ring (301) and the second mounting ring (302), and two ends of the bellows expansion tube (3010) are fixedly connected to the lower surface of the first mounting ring (301) and the upper surface of the second mounting ring (302), respectively.

4. The welding gun anti-collision device for a welding robot according to claim 1, characterized in that: A rotating tube (3011) is rotatably provided on the inner wall of the annular cavity, and a conical gear ring (3012) is fixedly provided on the inner annular surface of the rotating tube (3011). The top ends of the plurality of threaded columns (305) are fixedly provided with bevel gears (3013), and the plurality of bevel gears (3013) are meshed with the bevel gear ring (3012).

5. The welding robot welding gun anti-collision device according to claim 4, characterized in that: The output end of the motor (307) extends to the interior of the annular cavity and is fixedly provided with a driving gear disc (3014); the inner annular surface of the rotating tube (3011) is fixedly provided with a driven inner gear ring (3015) that meshes with the driving gear disc (3014).

6. The welding robot welding gun anti-collision device according to claim 1, characterized in that: A rim ring (3016) for limiting the position of the first protective sleeve (304) is fixedly provided at the bottom end of the first protective sleeve (304).

Images