Robot for welding automobile parts

Abstract

The utility model relates to the technical field of automobile part welding, in particular to an automobile part welding robot which comprises a stabilizing mechanism, a lifting mechanism is arranged above the stabilizing mechanism, a welding robot body is fixed to the top face of the lifting mechanism through bolts, and the stabilizing mechanism comprises a bottom plate. Universal wheels are fixedly connected to the four corners of the bottom face of the bottom plate, and fixing blocks are fixedly connected to the two sides of the two ends of the bottom face of the bottom plate. According to the welding robot, the limiting plate can be controlled to ascend or descend through simultaneous rotation of the two bidirectional lead screws, when the limiting plate ascends and the four universal wheels make contact with the ground, the welding robot body can be moved, and when the limiting plate descends, the four universal wheels are separated from the ground, so that the welding robot body can be moved. And the friction force can be increased through the contact between the limiting plate and the ground, so that the position deviation of the welding robot body during working can be prevented, and the welding error can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts welding, in particular to a robot for automobile parts welding. Background Art

[0002] Auto parts are the various units that make up the whole car and a kind of product that serves the car. These parts are of various types, including but not limited to the engine, brake system, fuel system, electrical system, body and chassis. Each part has its own unique function and role, working together to ensure the normal operation of the car. Auto parts usually need to weld two parts together during the production process.

[0003] At present, in the mass production process of automobile parts, welding robots are usually used to weld parts. However, the welding robots are usually fixed directly to the ground with bolts or placed directly on the ground when in use. If the production line is adjusted, the welding robots are bulky and need tools to move them. Although rollers can be used to make the welding robots move freely, when the welding robots are working, the contact area between the rollers and the ground is very small, which will cause the position of the welding robots to shift during operation. Utility Model Content

[0004] The utility model aims to provide a robot for welding automobile parts to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A robot for welding automobile parts comprises a stabilizing mechanism, a lifting mechanism is arranged above the stabilizing mechanism, a welding robot body is fixed to the top surface of the lifting mechanism by bolts, the stabilizing mechanism comprises a bottom plate, universal wheels are fixedly connected to the four corners of the bottom surface of the bottom plate, fixed blocks are fixedly connected to both sides of the two ends of the bottom surface of the bottom plate, a bidirectional screw is rotatably connected between two fixed blocks at relative positions, sliders are penetrated and screwed on both ends of the outer wall of the bidirectional screw, a limiting plate is arranged below the bottom plate, fixed seats are fixedly connected to the four corners of the top surface of the limiting plate, and a connecting plate is rotatably connected between the slider and the fixed seats at the corresponding positions.

[0007] Furthermore, one end of the bidirectional screw is fixedly connected to a rotating shaft that penetrates and rotates with a fixed block at a corresponding position, an outer wall of the rotating shaft is fixedly connected to a single-groove pulley, and a belt is used to transmit the power between the two single-groove pulleys.

[0008] Preferably, one end of one of the rotating shafts is fixedly connected to a crank handle, and the bottom surface of the limiting plate is a rough surface structure.

[0009] Furthermore, a rectangular sleeve is fixedly connected to the top surface of the base plate, and the lifting mechanism includes a lifting block slidably connected to the rectangular sleeve, and a plurality of threaded holes are formed in an annular manner at equal angles through the bottom surface of the lifting block, and a screw that rotates with the top surface of the base plate is screwed into the threaded hole.

[0010] Furthermore, the bottom end of the screw is fixedly connected to a rotating rod which passes through and rotates with the top surface of the base plate, the bottom end of the outer wall of the rotating rod is fixedly connected to a double-groove pulley, and two adjacent double-groove pulleys are connected through belt 2 for transmission, the bottom end of one of the screws is fixedly connected to gear 1, one side of the top surface of the base plate is fixedly connected to a motor, the output end of the motor is fixedly connected to gear 2 which meshes with gear 1, and the output end of the motor passes through and rotates with the bottom surface of the base plate.

[0011] Preferably, the top surface of the lifting block is fixedly connected to a mounting plate fixed to the welding robot body.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The rise or fall of the limit plate can be controlled by rotating two bidirectional screw rods at the same time. When the limit plate rises and the four universal wheels are in contact with the ground, the welding robot body can be moved. When the limit plate falls and the four universal wheels are separated from the ground, the contact between the limit plate and the ground can increase the friction force, thereby preventing the welding robot body from shifting during operation, thereby avoiding welding errors.

[0014] 2. Multiple screws can be driven by the motor to rotate, and the rotating screws can control the rise of the lifting block, thereby controlling the rise of the welding robot body, so that the welding robot body can weld larger automotive parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the stabilizing mechanism in the utility model;

[0017] Figure 3 It is a schematic diagram of the bottom surface of the bottom plate of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the lifting mechanism in the utility model.

[0019] In the figure: 1. Stabilizing mechanism; 11. Bottom plate; 111. Universal wheel; 112. Fixed block; 12. Bidirectional screw rod; 13. Slider; 14. Limiting plate; 15. Fixed seat; 16. Connecting plate; 17. Single groove pulley; 18. Rectangular sleeve; 2. Lifting mechanism; 21. Lifting block; 22. Screw rod; 23. Double groove pulley; 24. Gear 1; 25. Motor; 26. Gear 2; 27. Mounting plate; 3. Welding robot body. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4 In an embodiment of the utility model, a robot for welding automobile parts includes a stabilizing mechanism 1, a lifting mechanism 2 is arranged above the stabilizing mechanism 1, a welding robot body 3 is fixed to the top surface of the lifting mechanism 2 by bolts, the stabilizing mechanism 1 includes a bottom plate 11, universal wheels 111 are fixedly connected at four corners of the bottom surface of the bottom plate 11, fixed blocks 112 are fixedly connected on both sides of the two ends of the bottom surface of the bottom plate 11, a bidirectional screw rod 12 is rotatably connected between two fixed blocks 112 at relative positions, sliders 13 are penetrated and screwed at both ends of the outer wall of the bidirectional screw rod 12, a limiting plate 14 is arranged below the bottom plate 11, a fixing seat 15 is fixedly connected at four corners of the top surface of the limiting plate 14, and a connecting plate 16 is rotatably connected between the slider 13 and the fixing seat 15 at the corresponding position.

[0022] Specifically, the welding robot body 3 is first fixedly installed on the lifting mechanism 2, and then the height of the welding robot body 3 can be adjusted through the lifting mechanism 2, so that the welding robot body 3 can weld some larger parts. When the welding robot body 3 needs to be moved to the newly installed production line, the two bidirectional screw rods 12 can be rotated. The rotating bidirectional screw rods 12 can make the two sliders 13 at the corresponding positions approach each other, and the two sliders 13 approaching each other can move the limit plate 14 upward through the connecting plate 16 at the corresponding position, so that the welding robot body 3 can be moved downward until the four universal wheels 111 are in contact with the ground, and then the welding machine 3 can be directly pushed. The robot body 3 moves. When the welding robot body 3 is moved to the installation site, the two sliders 13 at the corresponding positions can be moved away from each other by rotating the two-way screw rod 12 in the opposite direction. The two sliders 13 at the relative positions that are away from each other can move the limit plate 14 downward through the connecting plate 16 at the corresponding position. The two two-way screw rods 12 are continued to be rotated. At this time, the limit plate 14 is driven by the reverse force of the bottom surface to drive the welding robot body 3 to move upward until the four universal wheels 111 are separated from the ground. The device can increase friction by contacting the ground through the limit plate 14, thereby preventing the welding robot body 3 from being offset during operation, thereby avoiding welding errors.

[0023] Embodiment 1

[0024] like Figure 2 As shown, in this embodiment, one end of the bidirectional screw rod 12 is fixedly connected to a rotating shaft that passes through a fixed block 112 at a corresponding position, and a single-groove pulley 17 is fixedly connected to the outer wall of the rotating shaft. The two single-groove pulleys 17 are driven by a belt, and one end of one of the rotating shafts is fixedly connected to a crank, and the bottom surface of the limit plate 14 is a rough surface structure.

[0025] In this embodiment, the two single-groove pulleys 17 can be rotated simultaneously by rotating the crank handle, so that the two bidirectional screws 12 can be rotated simultaneously, thereby controlling the stability or movement of the welding robot body 3. The friction between the limit plate 14 and the ground can be increased by making the bottom surface of the limit plate 14 a rough surface.

[0026] Embodiment 2

[0027] On the basis of the first embodiment, in order to enable the welding robot body 3 to weld larger automobile parts.

[0028] like Figure 2 and Figure 4As shown, in this embodiment, a rectangular sleeve 18 is fixedly connected to the top surface of the base plate 11, and the lifting mechanism 2 includes a lifting block 21 slidably sleeved with the rectangular sleeve 18. A plurality of threaded holes are formed in an annular manner at equal angles on the bottom surface of the lifting block 21, and a screw 22 is screwed in the threaded hole and rotates with the top surface of the base plate 11. The bottom end of the screw 22 is fixedly connected to a rotating rod that rotates through the top surface of the base plate 11, and a double-groove pulley 23 is fixedly connected to the bottom end of the outer wall of the rotating rod. Two adjacent double-groove pulleys 23 are connected by belt transmission. A gear 1 24 is fixedly connected to the bottom end of one of the screws 22, and a motor 25 is fixedly connected to one side of the top surface of the base plate 11. The output end of the motor 25 is fixedly connected to a gear 2 26 meshing with the gear 1 24. The output end of the motor 25 rotates through the bottom surface of the base plate 11, and the top surface of the lifting block 21 is fixedly connected to a mounting plate 27 fixed to the welding robot body 3.

[0029] In this embodiment, the drive of the motor 25 can make the gear 2 26 drive the gear 1 24 to rotate, and the rotating gear 1 24 can make multiple double-groove pulleys 23 rotate simultaneously, and the rotating double-groove pulleys 23 can make the screw 22 at the corresponding position rotate. Since the screw 22 is screwed together with the threaded hole at the corresponding position, the multiple screws 22 rotating simultaneously can make the lifting block 21 extend from the rectangular sleeve 18, so that the welding robot body 3 can be controlled to rise, so that the welding robot body 3 can be made to weld larger automotive parts.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A robot for welding automobile parts, characterized in that: The invention comprises a stabilizing mechanism (1), a lifting mechanism (2) is arranged above the stabilizing mechanism (1), a welding robot body (3) is fixed to the top surface of the lifting mechanism (2) by bolts, the stabilizing mechanism (1) comprises a bottom plate (11), universal wheels (111) are fixedly connected at four corners of the bottom surface of the bottom plate (11), fixed blocks (112) are fixedly connected on both sides of the bottom surface of the bottom plate (11), a bidirectional screw rod (12) is rotatably connected between two fixed blocks (112) at opposite positions, a slider (13) is screwed through both ends of the outer wall of the bidirectional screw rod (12), a limiting plate (14) is arranged below the bottom plate (11), a fixing seat (15) is fixedly connected at four corners of the top surface of the limiting plate (14), and a connecting plate (16) is rotatably connected between the slider (13) and the fixing seat (15) at the corresponding position.

2. The robot for welding automobile parts according to claim 1, characterized in that: One end of the bidirectional screw rod (12) is fixedly connected to a rotating shaft that penetrates and rotates through a fixed block (112) at a corresponding position, and a single-groove pulley (17) is fixedly connected to the outer wall of the rotating shaft. The two single-groove pulleys (17) are driven by a belt.

3. The robot for welding automobile parts according to claim 2, characterized in that: One end of one of the rotating shafts is fixedly connected to a crank handle, and the bottom surface of the limiting plate (14) is a rough surface structure.

4. The automobile parts welding robot according to claim 1, characterized in that: The top surface of the bottom plate (11) is fixedly connected with a rectangular sleeve (18), and the lifting mechanism (2) comprises a lifting block (21) slidably sleeved with the rectangular sleeve (18), and a plurality of threaded holes are formed in an annular manner at equal angles through the bottom surface of the lifting block (21), and screw rods (22) are screwed in the threaded holes and are rotatable with the top surface of the bottom plate (11).

5. The automobile parts welding robot according to claim 4, characterized in that: The bottom end of the screw rod (22) is fixedly connected to a rotating rod that penetrates and rotates through the top surface of the bottom plate (11), the bottom end of the outer wall of the rotating rod is fixedly connected to a double-groove pulley (23), and two adjacent double-groove pulleys (23) are connected through a belt transmission. The bottom end of one of the screw rods (22) is fixedly connected to a gear 1 (24), and one side of the top surface of the bottom plate (11) is fixedly connected to a motor (25), and the output end of the motor (25) is fixedly connected to a gear 2 (26) meshing with the gear 1 (24), and the output end of the motor (25) penetrates and rotates through the bottom surface of the bottom plate (11).

6. The automobile parts welding robot according to claim 5, characterized in that: The top surface of the lifting block (21) is fixedly connected to a mounting plate (27) fixed to the welding robot body (3).

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