Adjustable industrial robot

Abstract

The adjustable industrial robot comprises a base, a second mechanical arm is installed at the top end of the base, a first mechanical arm is installed at the top end of the second mechanical arm, a displacement device is slidably connected to the top end of the first mechanical arm in an inserted mode, and a positioning device is fixedly installed at the top of the front end of the displacement device; a welding gun is fixedly installed at the top end of the displacement device, the positioning device comprises a synchronous rod, a connecting rod, a reset spring, a displacement transverse plate, a positioning plug pin and a supporting cavity, the connecting rod is slidably inserted into the top end of the supporting cavity, and the displacement transverse plate is fixedly installed at the bottom end of the connecting rod. The reset spring is fixedly installed between the displacement transverse plate and the top end of the interior of the supporting cavity, and the positioning plug pin is fixedly installed at the bottom end of the connecting rod. Through the arrangement of the positioning device and the displacement device, the purpose of adjusting the welding gun on the industrial robot is achieved.

Description

Technical Field

[0001] This invention relates to the field of industrial robot technology, specifically to an adjustable industrial robot. Background Technology

[0002] An industrial robot is a programmable, automated, multi-jointed mechanical device that typically has three or more axes of motion and is capable of performing a series of complex, repetitive tasks in industrial environments, such as welding, assembly, handling, and painting.

[0003] For example, a novel industrial robot, disclosed in Chinese Patent Publication No. CN205969109U, includes a base, a primary rotation control axis, a rotary disk, a connecting rotation axis, and an angle adjustment axis. A fixed suction cup is mounted on the lower end of the base. The connecting axis is connected to the connecting main shaft via the primary rotation control axis, and a protruding connecting end is mounted on the right end of the primary rotation control axis. The upper end of the connecting main shaft is connected to the connecting axis via a secondary rotation control axis. The right end of the rotary disk is connected to a motor body. A connecting gripper is mounted on the front end of the connecting rotation axis, and an angle adjustment axis is embedded inside the connecting gripper. The gripper is also mounted on the front end of the angle adjustment axis.

[0004] When existing welding torches are used on industrial robots, the bolt positioning makes it impossible to adjust the torch after installation, which in turn makes it impossible to weld different workpieces. Therefore, an improved device is needed to address this problem. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable industrial robot to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable industrial robot, comprising a base, a second robotic arm mounted on the top of the base, a first robotic arm mounted on the top of the second robotic arm, a displacement device slidably inserted into the top of the first robotic arm, a positioning device fixedly mounted on the top of the front end of the displacement device, and a welding torch fixedly mounted on the top of the displacement device. The positioning device includes a synchronizing rod, a connecting rod, a return spring, a displacement cross plate, a positioning pin, and a supporting cavity. The connecting rod is slidably inserted into the top end of the supporting cavity. The displacement cross plate is fixedly installed at the bottom end of the connecting rod. The return spring is fixedly installed between the displacement cross plate and the top end of the inner cavity of the supporting cavity. The positioning pin is fixedly installed at the bottom end of the connecting rod. The synchronizing rod is fixedly installed between the two connecting rods.

[0007] Preferably, the displacement device includes a positioning bolt, a support base, and a pointer. The positioning bolt is threaded into the top front end of the support base, and the pointer is fixedly installed on the bottom ends of both sides of the support base.

[0008] Preferably, a support base plate is fixedly installed at the top of the first robotic arm, alignment blocks are fixedly installed at equal intervals on both top sides of the support base plate, extension side plates are fixedly installed on both bottom sides of the support base plate, and guide base rods are symmetrically fixedly installed on the inner bottom of the support base plate.

[0009] Preferably, the support base is slidably sleeved on the outer ring of the guide base rod, the support cavity is fixedly installed on both sides of the support base, and the support cavity is located above the pointer, and the welding gun is fixedly installed on the top of the support base.

[0010] Preferably, the front end center of the synchronizing rod has a through hole.

[0011] Preferably, the top surface of the extended side plate is marked with scale lines.

[0012] Preferably, the alignment block is vertically aligned with the positioning pin.

[0013] Preferably, the inner bottom end of the support frame is provided with symmetrical sleeve holes.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] In use, the welding torch is mounted on the top of the support frame. When the support frame is displaced, the welding torch is moved accordingly. Simultaneously, the elasticity of the return spring causes the connecting rod to move downwards and reset, causing the positioning pin to insert into the gap inside the alignment block, thus restricting the support frame. Furthermore, as the support frame is displaced, the pointer moves along the surface of the extension plate, allowing for precise control of the amount of movement of the support frame. At the same time, when the positioning bolt is turned into the synchronous rod, it restricts the synchronous rod, preventing the connecting rod from moving upwards again, thus completing the welding torch adjustment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the positioning device structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the displacement device structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the first robotic arm structure of the present invention.

[0020] In the diagram: 1-Positioning device, 2-Displacement device, 3-First robotic arm, 4-Welding torch, 5-Second robotic arm, 6-Base, 7-Synchronization rod, 8-Connecting rod, 9-Reset spring, 10-Displacement cross plate, 11-Positioning pin, 12-Support cavity, 13-Positioning bolt, 14-Support base frame, 15-Pointer, 16-Guide base rod, 17-Support base plate, 18-Alignment block, 19-Extension side plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-4 An embodiment of the present invention provides an adjustable industrial robot, comprising a base 6, a second robotic arm 5 mounted on the top of the base 6, a first robotic arm 3 mounted on the top of the second robotic arm 5, a displacement device 2 slidably inserted into the top of the first robotic arm 3, a positioning device 1 fixedly mounted on the top of the front end of the displacement device 2, and a welding torch 4 fixedly mounted on the top of the displacement device 2. The positioning device 1 includes a synchronizing rod 7, a connecting rod 8, a return spring 9, a displacement cross plate 10, a positioning pin 11, and a support cavity 12. The connecting rod 8 is slidably inserted into the top of the support cavity 12, the displacement cross plate 10 is fixedly installed at the bottom end of the connecting rod 8, the return spring 9 is fixedly installed between the displacement cross plate 10 and the top end of the support cavity 12, the positioning pin 11 is fixedly installed at the bottom end of the connecting rod 8, and the synchronizing rod 7 is fixedly installed between the two connecting rods 8.

[0023] The displacement device 2 includes a positioning bolt 13, a support base 14, and a pointer 15. The positioning bolt 13 is threaded into the top front end of the support base 14, and the pointer 15 is fixedly installed on both sides of the bottom end of the support base 14. The support base 14 has a threaded hole at the front end, which makes it easy to screw the positioning bolt 13 into the interior of the support base 14.

[0024] The top of the first robotic arm 3 is fixedly installed with a support base plate 17. Alignment blocks 18 are fixedly installed at equal intervals on both top sides of the support base plate 17. Extension side plates 19 are fixedly installed on both bottom sides of the support base plate 17. Guide base rods 16 are symmetrically fixedly installed on the bottom inside the support base plate 17 to support the operation of the support base plate 17.

[0025] The support base 14 is slidably sleeved on the outer ring of the guide base rod 16. The support cavity 12 is fixedly installed on both sides of the support base 14, and the support cavity 12 is located above the pointer 15. The welding torch 4 is fixedly installed on the top of the support base 14, which makes it easy to install the welding torch 4 on the top of the support base 14.

[0026] A through hole is provided at the center of the front end of the synchronizing rod 7, so that the positioning bolt 13 can pass through the synchronizing rod 7.

[0027] The top surface of the extension plate 19 is marked with scale lines to improve the accuracy of movement of the support base 14.

[0028] The alignment block 18 is vertically aligned with the positioning pin 11, which facilitates the insertion of the positioning pin 11 into the interior of the alignment block 18.

[0029] The support base 14 has symmetrically opened sleeve holes at the bottom of its interior, which facilitates the sliding displacement of the support base 14 on the guide rod 16.

[0030] Working principle: In use, the welding torch 4 is mounted on the top of the first robotic arm 3, and the first robotic arm 3 can move independently on the second robotic arm 5. The second robotic arm 5 can move on the base 6, allowing the welding torch 4 to contact the workpiece for welding. Simultaneously, the welding torch 4 is connected to an external welding machine via a welding wire, facilitating its operation. When the welding torch 4 needs adjustment and extension, the positioning bolt 13 can be unscrewed from the inside of the support frame 14, releasing the synchronization rod 7. At this time, the synchronization rod 7 can be extended... Pulling upwards causes both connecting rods 8 to shift simultaneously, allowing the positioning pin 11 to be pulled out from inside the alignment block 18, releasing the support frame 14. The support frame 14 can then slide, sliding onto the outer ring of the guide rod 16, supporting its linear movement. As the support frame 14 moves, it also moves the pointer 15 along the top of the extension plate 19, aligning it with the scale lines on the extension plate 19. This allows for precise control of the welding torch 4's movement. When the support frame 14 moves to the designated working area, the synchronizing rod 7 can be released. The elasticity of the return spring 9 will cause the displacement plate 10 to quickly return downwards, allowing the positioning pin 11 to be inserted into the corresponding gap of the alignment block 18, thus restricting the support frame 14. Then, the positioning bolt 13 is screwed through the center of the front end of the synchronizing rod 7 into the threaded hole inside the support frame 14, further restricting the synchronizing rod 7 and preventing it from moving up and down. This also prevents the positioning pin 11 from moving out of the gap inside the alignment block 18, completing the welding process. In the operation of the welding gun 4 adjustment, when this device is in use, the welding gun 4 is connected and positioned to the support base 14 by bolts, so that the support base 14 can support the displacement of the welding gun 4. At the same time, the interior of the support cavity 12 is hollow, which allows the displacement plate 10 to move inside the support cavity 12. Furthermore, the positioning bolt 13 can pass through the synchronous rod 7 and match the threaded hole inside the support base 14, so that the synchronous rod 7 can be restricted and positioned, preventing the synchronous rod 7 from moving up and down, thereby avoiding the phenomenon of the positioning pin 11 loosening.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable industrial robot, comprising a base (6), a second robotic arm (5) mounted on the top of the base (6), a first robotic arm (3) mounted on the top of the second robotic arm (5), a displacement device (2) slidably inserted into the top of the first robotic arm (3), a positioning device (1) fixedly mounted on the top of the front end of the displacement device (2), and a welding torch (4) fixedly mounted on the top of the displacement device (2), characterized in that: The positioning device (1) includes a synchronizing rod (7), a connecting rod (8), a return spring (9), a displacement plate (10), a positioning pin (11), and a support cavity (12). The connecting rod (8) is slidably inserted into the top end of the support cavity (12). The displacement plate (10) is fixedly installed at the bottom end of the connecting rod (8). The return spring (9) is fixedly installed between the displacement plate (10) and the top end of the support cavity (12). The positioning pin (11) is fixedly installed at the bottom end of the connecting rod (8). The synchronizing rod (7) is fixedly installed between the two connecting rods (8).

2. The adjustable industrial robot according to claim 1, characterized in that: The displacement device (2) includes a positioning bolt (13), a support base (14) and a pointer (15). The positioning bolt (13) is threaded into the top front end of the support base (14), and the pointer (15) is fixedly installed on the bottom ends of both sides of the support base (14).

3. An adjustable industrial robot according to claim 2, characterized in that: The top of the first robotic arm (3) is fixedly installed with a support base plate (17), and the top of both sides of the support base plate (17) are fixedly installed with alignment blocks (18) at equal intervals. The bottom of both sides of the support base plate (17) is fixedly installed with extension side plates (19), and the bottom of the inner side of the support base plate (17) is symmetrically fixedly installed with guide base rods (16).

4. An adjustable industrial robot according to claim 3, characterized in that: The support base (14) is slidably sleeved on the outer ring of the guide base rod (16), the support cavity (12) is fixedly installed on both sides of the support base (14), and the support cavity (12) is located above the pointer (15). The welding gun (4) is fixedly installed on the top of the support base (14).

5. An adjustable industrial robot according to claim 4, characterized in that: The front end center of the synchronizing rod (7) has a through hole.

6. An adjustable industrial robot according to claim 5, characterized in that: The top surface of the extended side plate (19) is marked with scale lines.

7. An adjustable industrial robot according to claim 6, characterized in that: The alignment block (18) is vertically aligned with the positioning pin (11).

8. An adjustable industrial robot according to claim 7, characterized in that: The support frame (14) has symmetrically opened sleeve holes at its inner bottom end.

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