Welding robot for mechanical part machining

Abstract

The invention discloses a welding robot for mechanical part machining, and relates to the technical field of welding robots, the robot comprises a robot hand, a welding gun barrel, a cleaning assembly and a welding gun, the welding gun is arranged at the tail end of the robot hand, the welding gun barrel is arranged at the output end of the welding gun, and the cleaning assembly is arranged on the side wall of the welding gun. And the cleaning assembly comprises a first mounting plate, a cleaning box and a protective barrel, the side wall of the welding gun is fixedly connected with a second mounting plate, the second mounting plate is fixedly connected with a first mounting plate through a connecting rod, the lower surface of the first mounting plate is fixedly connected with the cleaning box through a support, and the first mounting plate is connected with a rack through a bearing. By means of the cleaning assembly, splashes attached to the welding gun opening of the welding robot are cleaned, and the situation that too many splashes are accumulated on the welding gun opening to cause blockage, and the regret welding work is affected is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of welding robots, in particular to a welding robot for machining mechanical parts. Background Art

[0002] The mechanical structure of the welding robot is mainly composed of the body, arm, wrist and end effector. The body is the basic support part of the robot, the arm is used to achieve a large range of movement, and the wrist can flexibly adjust the posture of the welding tool to ensure precise welding in complex spatial positions.

[0003] The welding gun of the existing welding robot will generate a large amount of spatter during operation. When the spatter adheres to the welding gun mouth of the welding robot, it is easy to cause the welding gun mouth to be blocked.

[0004] Based on this, a welding robot for machining mechanical parts is now provided, which can eliminate the disadvantages of the existing devices. Summary of the invention

[0005] The object of the present invention is to provide a welding robot for machining mechanical parts to solve the shortcomings of the current products in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A welding robot for machining mechanical parts comprises a robot arm, a welding gun barrel, a cleaning assembly and a welding gun. A welding gun is arranged at the end of the robot arm, a welding gun barrel is arranged at the output end of the welding gun, a cleaning assembly is arranged at the side wall of the welding gun, the cleaning assembly comprises a first mounting plate, a cleaning box and a protective cylinder, a second mounting plate is fixedly connected to the side wall of the welding gun, the second mounting plate is fixedly connected to the first mounting plate via a connecting rod, a cleaning box is fixedly connected to the lower surface of the first mounting plate via a bracket, a rack is connected to the first mounting plate via a bearing, a protective cylinder is arranged inside the rack, the protective cylinder is sleeved on the outside of the welding gun barrel, and the cleaning box is provided with an inclined surface, and the inclined surface of the cleaning box abuts against the protective cylinder.

[0008] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0009] In an optional scheme: a motor is fixedly connected to the upper surface of the second mounting plate, a first rotating shaft is fixedly connected to the output end of the motor, the first rotating shaft is connected to the first mounting plate via a bearing, the first rotating shaft is fixedly connected to a first synchronous pulley, the rack is fixedly connected to a second synchronous pulley, and the second synchronous pulley and the first synchronous pulley are jointly cooperated with a first synchronous belt.

[0010] In an optional scheme: the inner side wall of the rack is provided with four circumferentially distributed sliding grooves, the protective tube is fixedly connected with four circumferentially distributed first protrusions on the circumferential side, the first protrusions are slidably connected to the inner side walls of the sliding grooves, the welding gun is fixedly connected with an annular wave block through a connecting rod, the annular wave block is provided with an annular wave groove, the inner side wall of the protective tube is fixedly connected with a second protrusion, and the second protrusion is slidably connected to the inner side wall of the annular wave groove of the annular wave block.

[0011] In an optional scheme: the first mounting plate is connected to a reciprocating screw via a bearing, the other end of the reciprocating screw is connected to a cleaning box via a bearing, the reciprocating screw is connected to a lifting block via a thread, the lifting block is connected to a second rotating shaft via a bearing, one end of the second rotating shaft is fixedly connected to a gear, and the other end is fixedly connected to a cleaning leaf, the inner side wall of the cleaning box is fixedly connected to a rack, the rack is meshed with the gear, and the cleaning leaf is close to the inclined surface of the cleaning box.

[0012] In an optional scheme: the inner wall of the cleaning box is fixedly connected to a guide block, the guide block is provided with a wave groove, the inner wall of the wave groove is slidably connected to a sliding block, the second rotating shaft passes through a reciprocating block that is slidably connected, the reciprocating block and the sliding block are fixedly connected via a connecting rod, the reciprocating block is fixedly connected to an impact block via the connecting rod, the second rotating shaft is connected to a rotating ring via a bearing, and the rotating ring is fixedly connected to the cleaning blade.

[0013] In an optional solution: a guide rod is fixedly connected to the inner side wall of the cleaning box, and the guide rod is slidably connected to the lifting block.

[0014] In an optional solution: the cleaning box is slidably connected with a pull-out box, a second magnetic block is provided at the bottom of the pull-out box, and a first magnetic block is provided at the bottom of the cleaning box, and the opposite surfaces of the first magnetic block and the second magnetic block have opposite magnetic properties.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The present invention uses a cleaning component to clean the spatter attached to the welding gun mouth of the welding robot, thereby preventing the welding gun mouth from being blocked due to the accumulation of a large amount of spatter, which affects the welding work.

[0017] 2. The present invention starts the motor, and the motor drives the first rotating shaft to rotate. The first rotating shaft drives the rack to rotate through the first synchronous pulley, the first synchronous belt, and the second synchronous pulley. The rack drives the protective tube to rotate through the first protrusion. The protective tube rotates and contacts the inclined surface of the cleaning box, and the splashes attached to the surface of the protective tube are scraped into the cleaning box, completing the cleaning of the surface of the protective tube and avoiding the accumulation of a large amount of splashes attached to the surface of the protective tube.

[0018] 3. The present invention drives the second protrusion to rotate by rotating the protective tube. The rotation of the second protrusion cooperates with the annular wave block. The second protrusion slides in the annular wave groove of the annular wave block, so that the second protrusion drives the protective tube to reciprocate up and down. The up and down reciprocating movement of the protective tube scrapes off the spatter attached to the opening of the welding gun barrel, and the up and down shaking of the protective tube also helps to shake off the spatter on the surface of the protective tube itself.

[0019] 4. The present invention drives the lifting block to reciprocate up and down by rotating the reciprocating screw. The lifting block drives the second rotating shaft to move in the process of reciprocating up and down. The gear and rack rotate in the process of the second rotating shaft, so that the second rotating shaft rotates. The rotation of the second rotating shaft drives the cleaning blades to rotate. Since the inclined surface of the cleaning box is used to scrape off the splashes on the surface of the protective tube, a large amount of splash residues will gather on the inclined surface of the cleaning box. The rotation of the cleaning blades can scrape the splashes on the inclined surface of the cleaning box into the inside of the cleaning box, so as to avoid long-term accumulation on the inclined surface of the cleaning box, which affects the subsequent cleaning effect on the surface of the protective tube.

[0020] 5. The present invention drives the reciprocating block to rise during the rising process of the second rotating shaft, and the reciprocating block drives the sliding block to rise. The sliding block cooperates with the wave groove to allow the reciprocating block to rise and move back and forth laterally. The reciprocating block moves back and forth laterally and drives the impact block to hit the rotating ring back and forth, so that the cleaning blade vibrates, and the splashing debris attached to the surface of the cleaning blade is shaken off and enters the cleaning box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 This is a first viewing angle diagram of the present invention.

[0023] Figure 3 This is a first viewing angle diagram of the cleaning component of the present invention.

[0024] Figure 4 This is a second viewing angle view of the cleaning component of the present invention.

[0025] Figure 5 It is a partial schematic diagram of the cleaning component of the present invention.

[0026] Figure 6 It is a partial cross-sectional view of the cleaning component of the present invention.

[0027] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle.

[0028] Figure 8 It is a schematic diagram of the guide block structure of the present invention.

[0029] Notes on figure numbers: 1 robot arm, 2 welding gun barrel, 3 cleaning assembly, 4 welding gun, 5 motor, 6 first rotating shaft, 7 first mounting plate, 8 second mounting plate, 9 first synchronous pulley, 10 first synchronous belt, 11 second synchronous pulley, 12 third synchronous pulley, 13 second synchronous belt, 14 fourth synchronous belt, 15 cleaning box, 16 first magnetic block, 17 second magnetic block, 18 pull-out box, 19 protective cylinder, 20 rack, 21 gear, 22 lifting block, 23 reciprocating screw, 24 slide groove, 25 first protrusion, 26 guide block, 27 wave groove, 28 sliding block, 29 reciprocating block, 30 impact block, 31 rotating ring, 32 cleaning leaf, 33 second rotating shaft, 34 second protrusion, 35 annular wave block, 36 guide rod. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] In one embodiment, Figure 1-Figure 8 As shown, a welding robot for machining mechanical parts comprises a robot arm 1, a welding gun barrel 2, a cleaning assembly 3 and a welding gun 4. A welding gun 4 is arranged at the end of the robot arm 1, a welding gun barrel 2 is arranged at the output end of the welding gun 4, a cleaning assembly 3 is arranged at the side wall of the welding gun 4, the cleaning assembly 3 comprises a first mounting plate 7, a cleaning box 15 and a protective cylinder 19, a second mounting plate 8 is fixedly connected to the side wall of the welding gun 4, the second mounting plate 8 is fixedly connected to the first mounting plate 7 through a connecting rod, the lower surface of the first mounting plate 7 is fixedly connected to the cleaning box 15 through a bracket, the first mounting plate 7 is connected to the rack 20 through a bearing, a protective cylinder 19 is arranged in the rack 20, the protective cylinder 19 is sleeved on the outside of the welding gun barrel 2, the cleaning box 15 is provided with an inclined surface, and the inclined surface of the cleaning box 15 abuts against the protective cylinder 19.

[0032] In one embodiment, a motor 5 is fixedly connected to the upper surface of the second mounting plate 8, a first rotating shaft 6 is fixedly connected to the output end of the motor 5, the first rotating shaft 6 is connected to the first mounting plate 7 through a bearing, the first rotating shaft 6 is fixedly connected to the first synchronous pulley 9, the rack 20 is fixedly connected to the second synchronous pulley 11, and the second synchronous pulley 11 and the first synchronous pulley 9 are jointly cooperated with the first synchronous belt 10.

[0033] When spatters adhere to the surfaces of the welding gun barrel 2 and the protective barrel 19, start the motor 5, which drives the first rotating shaft 6 to rotate. The first rotating shaft 6 drives the rack 20 to rotate through the first synchronous pulley 9, the first synchronous belt 10, and the second synchronous pulley 11. The rack 20 drives the protective barrel 19 to rotate through the first protrusion 25. The protective barrel 19 rotates and contacts the inclined surface of the cleaning box 15, scraping the spatters adhered to the surface of the protective barrel 19 into the cleaning box 15, completing the cleaning of the surface of the protective barrel 19 and avoiding the accumulation of a lot of spatters adhered to the surface of the protective barrel 19.

[0034] In one embodiment, the inner wall of the rack 20 is provided with four circumferentially distributed slide grooves 24, and four circumferentially distributed first protrusions 25 are fixedly connected to the circumferential side of the protective tube 19. The first protrusions 25 are slidably connected to the inner wall of the slide groove 24. The welding gun 4 is fixedly connected to an annular wave block 35 through a connecting rod. The annular wave block 35 is provided with an annular wave groove. The inner wall of the protective tube 19 is fixedly connected with a second protrusion 34, and the second protrusion 34 is slidably connected to the inner wall of the annular wave groove of the annular wave block 35.

[0035] The rotation of the protective tube 19 drives the second protrusion 34 to rotate, and the rotation of the second protrusion 34 cooperates with the annular wave block 35. The second protrusion 34 slides in the annular wave groove of the annular wave block 35, so that the second protrusion 34 drives the protective tube 19 to reciprocate up and down. The up and down reciprocating movement of the protective tube 19 scrapes off the spatter attached to the opening of the welding gun barrel 2, and the up and down shaking of the protective tube 19 also helps to shake off the spatter on the surface of the protective tube 19 itself.

[0036] In one embodiment, the first mounting plate 7 is connected to a reciprocating screw 23 through a bearing, the other end of the reciprocating screw 23 is connected to a cleaning box 15 through a bearing, the reciprocating screw 23 is connected to a lifting block 22 through a thread, the lifting block 22 is connected to a second rotating shaft 33 through a bearing, one end of the second rotating shaft 33 is fixedly connected to a gear 21, and the other end is fixedly connected to a cleaning leaf 32, the inner side wall of the cleaning box 15 is fixedly connected to a rack 20, the rack 20 is meshed with the gear 21, and the cleaning leaf 32 is close to the inclined surface of the cleaning box 15.

[0037] While the first rotating shaft 6 rotates, the reciprocating screw 23 is driven to rotate through the third synchronous pulley 12, the second synchronous belt 13, and the fourth synchronous belt 14. The rotation of the reciprocating screw 23 drives the lifting block 22 to move back and forth up and down. During the reciprocating movement of the lifting block 22, it drives the second rotating shaft 33 to move. During the movement of the second rotating shaft 33, the gear 21 cooperates with the rack 20 to rotate, so that the second rotating shaft 33 rotates. The rotation of the second rotating shaft 33 drives the cleaning blade 32 to rotate. Since the inclined surface of the cleaning box 15 is used to scrape off the splashes on the surface of the protective cylinder 19, a large amount of splash residue will gather on the inclined surface of the cleaning box 15. The rotation of the cleaning blade 32 can scrape the splashes on the inclined surface of the cleaning box 15 into the inside of the cleaning box 15, so as to avoid long-term accumulation on the inclined surface of the cleaning box 15, which affects the subsequent cleaning effect on the surface of the protective cylinder 19.

[0038] In one embodiment, a guide block 26 is fixedly connected to the inner wall of the cleaning box 15, and a wave groove 27 is opened on the guide block 26. A sliding block 28 is slidably connected to the inner wall of the wave groove 27. A second rotating shaft 33 passes through and is slidably connected to a reciprocating block 29. The reciprocating block 29 and the sliding block 28 are fixedly connected by a connecting rod. The reciprocating block 29 is fixedly connected to an impact block 30 by a connecting rod. The second rotating shaft 33 is connected to a rotating ring 31 through a bearing, and the rotating ring 31 is fixedly connected to a cleaning leaf 32.

[0039] During the rising process of the second rotating shaft 33, the reciprocating block 29 is driven to rise, and the reciprocating block 29 drives the sliding block 28 to rise. The sliding block 28 cooperates with the wave groove 27 to make the reciprocating block 29 move back and forth laterally while rising. The reciprocating block 29 moves back and forth laterally and drives the impact block 30 to hit the rotating ring 31 back and forth, so that the cleaning leaf 32 vibrates, and the splashing debris attached to the surface of the cleaning leaf 32 is shaken off.

[0040] In one embodiment, a guide rod 36 is fixedly connected to the inner wall of the cleaning box 15 , and the guide rod 36 is slidably connected to the lifting block 22 .

[0041] The guide rod 36 prevents the lifting block 22 from rotating.

[0042] In one embodiment, the cleaning box 15 is slidably connected with a pull-out box 18, a second magnetic block 17 is provided at the bottom of the pull-out box 18, and a first magnetic block 16 is provided at the bottom of the cleaning box 15. The opposite surfaces of the first magnetic block 16 and the second magnetic block 17 have opposite magnetic properties.

[0043] After the splashes are collected inside the cleaning box 15, the pull-out box 18 is pulled out from the bottom of the cleaning box 15 for centralized cleaning, and then inserted back after the cleaning is completed. The first magnetic block 16 and the second magnetic block 17 cooperate to prevent the pull-out box 18 from falling.

[0044] The above embodiment discloses a welding robot for machining mechanical parts, and its specific working principle and process are as follows:

[0045] S1: When the surfaces of the welding gun barrel 2 and the protective barrel 19 are attached with spatters, the motor 5 is started, the motor 5 drives the first rotating shaft 6 to rotate, the first rotating shaft 6 drives the rack 20 to rotate through the first synchronous pulley 9, the first synchronous belt 10, and the second synchronous pulley 11, the rack 20 drives the protective barrel 19 to rotate through the first protrusion 25, the protective barrel 19 rotates and contacts with the inclined surface of the cleaning box 15, and the spatters attached to the surface of the protective barrel 19 are scraped into the cleaning box 15, so as to complete the cleaning of the surface of the protective barrel 19 and avoid the accumulation of a lot of spatters attached to the surface of the protective barrel 19;

[0046] S2: At the same time, the protection tube 19 rotates to drive the second protrusion 34 to rotate, and the second protrusion 34 rotates to cooperate with the annular wave block 35. The second protrusion 34 slides in the annular wave groove of the annular wave block 35, so that the second protrusion 34 drives the protection tube 19 to move up and down reciprocatingly. The protection tube 19 moves up and down reciprocatingly to scrape off the spatter attached to the opening of the welding gun barrel 2, and the up and down shaking of the protection tube 19 also helps to shake off the spatter on the surface of the protection tube 19 itself;

[0047] S3: At the same time, as the first rotating shaft 6 rotates, the reciprocating screw 23 is driven to rotate through the third synchronous pulley 12, the second synchronous belt 13, and the fourth synchronous belt 14. The rotation of the reciprocating screw 23 drives the lifting block 22 to move up and down. During the reciprocating movement of the lifting block 22, the second rotating shaft 33 is driven to move. During the movement of the second rotating shaft 33, the gear 21 cooperates with the rack 20 to rotate, so that the second rotating shaft 33 rotates. The rotation of the second rotating shaft 33 drives the cleaning blade 32 to rotate. Since the inclined surface of the cleaning box 15 is used to scrape off the splashes on the surface of the protective cylinder 19, a large amount of splash residues will gather on the inclined surface of the cleaning box 15. The rotation of the cleaning blade 32 can scrape the splashes on the inclined surface of the cleaning box 15 into the inside of the cleaning box 15, so as to avoid long-term accumulation on the inclined surface of the cleaning box 15, which affects the subsequent cleaning effect on the surface of the protective cylinder 19.

[0048] S4: At the same time, the second rotating shaft 33 drives the reciprocating block 29 to rise during the process of rising, and the reciprocating block 29 drives the sliding block 28 to rise. The sliding block 28 cooperates with the wave groove 27 to make the reciprocating block 29 move back and forth horizontally while rising. The reciprocating block 29 moves back and forth horizontally and drives the impact block 30 to hit the rotating ring 31 back and forth, so that the cleaning leaf 32 vibrates, so that the splash residue attached to the surface of the cleaning leaf 32 is shaken off;

[0049] S5: After the splashes are collected inside the cleaning box 15, the pull-out box 18 is pulled out from the bottom of the cleaning box 15 for centralized cleaning, and then inserted back after the cleaning is completed. The first magnetic block 16 and the second magnetic block 17 cooperate to prevent the pull-out box 18 from falling.

[0050] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A welding robot for machining mechanical parts, characterized in that: The invention comprises a robot arm (1), a welding gun barrel (2), a cleaning assembly (3) and a welding gun (4). The end of the robot arm (1) is provided with a welding gun (4). The output end of the welding gun (4) is provided with a welding gun barrel (2). The side wall of the welding gun (4) is provided with a cleaning assembly (3). The cleaning assembly (3) comprises a first mounting plate (7), a cleaning box (15) and a protective tube (19). The side wall of the welding gun (4) is fixedly connected with a second mounting plate (8). The second mounting plate (8) is fixedly connected with the first mounting plate (7) through a connecting rod. The lower surface of the first mounting plate (7) is fixedly connected with the cleaning box (15) through a bracket. The first mounting plate (7) is connected with a rack (20) through a bearing. A protective tube (19) is provided inside the rack (20). The protective tube (19) is sleeved on the outside of the welding gun barrel (2). The cleaning box (15) is provided with an inclined surface. The inclined surface of the cleaning box (15) abuts against the protective tube (19).

2. A welding robot for machining mechanical parts according to claim 1, characterized in that: The upper surface of the second mounting plate (8) is fixedly connected to a motor (5), the output end of the motor (5) is fixedly connected to a first rotating shaft (6), the first rotating shaft (6) is connected to the first mounting plate (7) via a bearing, the first rotating shaft (6) is fixedly connected to a first synchronous pulley (9), the rack (20) is fixedly connected to a second synchronous pulley (11), and the second synchronous pulley (11) and the first synchronous pulley (9) are jointly equipped with a first synchronous belt (10).

3. A welding robot for machining mechanical parts according to claim 2, characterized in that: The inner wall of the rack (20) is provided with four circumferentially distributed sliding grooves (24); the circumferential side of the protective tube (19) is fixedly connected with four circumferentially distributed first protrusions (25); the first protrusions (25) are slidably connected to the inner wall of the sliding groove (24); the welding gun (4) is fixedly connected with an annular wave block (35) through a connecting rod; the annular wave block (35) is provided with an annular wave groove; the inner wall of the protective tube (19) is fixedly connected with a second protrusion (34); the second protrusion (34) is slidably connected to the inner wall of the annular wave groove of the annular wave block (35).

4. A welding robot for machining mechanical parts according to claim 3, characterized in that: The first mounting plate (7) is connected to a reciprocating screw (23) via a bearing, the other end of the reciprocating screw (23) is connected to a cleaning box (15) via a bearing, the reciprocating screw (23) is connected to a lifting block (22) via a thread, the lifting block (22) is connected to a second rotating shaft (33) via a bearing, one end of the second rotating shaft (33) is fixedly connected to a gear (21), and the other end is fixedly connected to a cleaning leaf (32), the inner side wall of the cleaning box (15) is fixedly connected to a rack (20), the rack (20) is meshed with the gear (21), and the cleaning leaf (32) is close to the inclined surface of the cleaning box (15).

5. A welding robot for machining mechanical parts according to claim 4, characterized in that: The inner wall of the cleaning box (15) is fixedly connected with a guide block (26), the guide block (26) is provided with a wave groove (27), the inner wall of the wave groove (27) is slidably connected with a sliding block (28), the second rotating shaft (33) passes through and is slidably connected with a reciprocating block (29), the reciprocating block (29) and the sliding block (28) are fixedly connected via a connecting rod, the reciprocating block (29) is fixedly connected with an impact block (30) via the connecting rod, the second rotating shaft (33) is connected with a rotating ring (31) via a bearing, and the rotating ring (31) is fixedly connected with the cleaning blade (32).

6. A welding robot for machining mechanical parts according to claim 4, characterized in that: The inner wall of the cleaning box (15) is fixedly connected with a guide rod (36), and the guide rod (36) is slidably connected to the lifting block (22).

7. A welding robot for machining mechanical parts according to claim 1, characterized in that: The cleaning box (15) is slidably connected with a drawer box (18), a second magnetic block (17) is arranged at the bottom of the drawer box (18), and a first magnetic block (16) is arranged at the bottom of the cleaning box (15), and the first magnetic block (16) and the second magnetic block (17) have opposite magnetic surfaces.

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