Automatic clamping mechanism for industrial robot welding

Abstract

The utility model relates to the technical field of robot welding clamping mechanisms, in particular to an industrial robot welding automatic clamping mechanism which comprises a clamping mechanical arm, a conveying belt is arranged on the front side of the clamping mechanical arm, two supporting plates are arranged on the front side of the conveying belt, and a cross beam plate is fixedly installed between the two supporting plates. A clamping device is arranged on the two supporting plates and comprises a long shaft rotationally connected between the two supporting plates, a rectangular frame is fixedly installed on the long shaft, a left clamping assembly and a right clamping assembly are arranged on the inner side faces of plate bodies on the upper side and the lower side of the rectangular frame correspondingly, and each clamping assembly comprises an electric push rod fixedly installed on the rectangular frame. A clamping block is arranged on a telescopic shaft of the electric push rod, a driving motor is coaxially arranged at the tail end of the long shaft, a rectangular plate is fixedly installed at the tail end of the telescopic shaft of the electric push rod, and a protruding block is fixedly installed at the end of the clamping block. The clamping device facilitates automatic clamping operation, facilitates stable clamping and fixing and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of robot welding clamping mechanisms, in particular to an industrial robot welding automatic clamping mechanism. Background Art

[0002] In existing welding production lines, welding clamping mechanisms are mostly carried out manually or semi-automatically, which not only requires a lot of manpower, but also has complex operations and low efficiency, making it difficult to meet the high efficiency and high quality requirements of modern welding production. In addition, due to the influence of human factors, the clamping accuracy is difficult to ensure, resulting in unstable welding quality, making it difficult to meet the needs of high-precision welding;

[0003] In recent years, with the continuous development of industrial robot technology, its application in the field of welding has become more and more extensive. Industrial robot welding technology has the advantages of high degree of automation, high welding efficiency and stable welding quality;

[0004] Most of the welding automatic clamping mechanisms on industrial robots generally use cylinders to press the workpiece down and clamp it on the corresponding operating platform before performing subsequent welding operations. However, when clamped on the operating platform, although the operating platform can provide support, it also blocks the bottom of the workpiece, affecting the normal welding operation of this part and causing inconvenience to the user. In view of this, we propose an industrial robot welding automatic clamping mechanism. Utility Model Content

[0005] The utility model aims to provide an automatic clamping mechanism for welding of an industrial robot to solve the defects mentioned in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An automatic clamping mechanism for industrial robot welding comprises a clamping mechanical arm, a conveyor belt is arranged on the front side of the clamping mechanical arm, two symmetrical support plates are arranged on the front side of the conveyor belt, a crossbeam plate is fixedly installed between the two support plates, a clamping device is arranged on the two support plates, the clamping device comprises a long shaft rotatably connected to the two support plates, a rectangular frame is fixedly installed on the long shaft, two left and right symmetrical clamping components are arranged on the inner side surfaces of the upper and lower side plates of the rectangular frame, the clamping component comprises an electric push rod fixedly installed on the rectangular frame, a clamping block is arranged on the telescopic shaft of the electric push rod, and a driving motor is coaxially arranged at the end of the long shaft.

[0008] Preferably, the output shaft end of the driving motor is fixedly mounted on the long shaft, and the driving motor is fixedly mounted on the support plate, so that the driving motor can be used to drive the long shaft to rotate.

[0009] Preferably, the upper and lower clamping blocks are positioned opposite to each other for clamping operations of welded parts.

[0010] Preferably, a rectangular plate is fixedly mounted on the end of the telescopic shaft of the electric push rod, a protrusion is fixedly mounted on the end of the clamping block, and the rectangular plate and the protrusion are fixedly connected by a plurality of fastening bolts, so as to facilitate the installation, disassembly and replacement operations of the clamping block.

[0011] Preferably, a support frame is provided on the rear side of the support plate, and two symmetrical left and right rotating shafts are rotatably connected between the front and rear side plates of the support frame. The conveyor belt is sleeved on the two rotating shafts, and a stepping motor is coaxially provided at the end of one of the rotating shafts to drive the conveyor belt to rotate for conveying operations.

[0012] Preferably, the output shaft end of the stepper motor is fixedly mounted on the rotating shaft, and the stepper motor is fixedly mounted on the supporting frame, so as to facilitate the operation of the stepper motor to drive the rotating shaft to rotate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model can use the conveyor belt to transport the workpiece through the provided conveyor belt. In addition, the provided clamping mechanical arm can clamp the workpiece on the conveyor belt and transport it to the clamping device. Then the clamping assembly can be used to clamp the left and right workpieces. At this time, the two workpieces are in a suspended position and will not be blocked by foreign objects, which is conducive to clamping and fixing and subsequent welding operations, thereby achieving the effect of facilitating clamping and fixing and facilitating normal welding operations.

[0015] 2. The utility model is provided with a driving motor, which can utilize the driving motor to drive the rectangular frame to rotate within a certain range, thereby adjusting the angle of the rectangular frame, and further adjusting the angle of the workpiece, so that welding operations on multiple parts of the workpiece are smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the clamping device of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the clamping assembly of the utility model.

[0020] The meaning of each number in the figure is:

[0021] 1. Clamping robot arm; 10. Conveyor belt; 11. Support frame; 12. Rotating shaft; 13. Stepping motor;

[0022] 2. Support plate; 20. Crossbeam plate;

[0023] 3. Clamping device; 30. Driving motor; 31. Long shaft; 32. Rectangular frame; 33. Clamping assembly; 331. Electric push rod; 332. Rectangular plate; 333. Bump; 334. Clamping block. DETAILED DESCRIPTION

[0024] 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.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] See also Figure 1-Figure 4The utility model provides a technical solution: an industrial robot welding automatic clamping mechanism, including a clamping mechanical arm 1, the clamping mechanical arm 1 is an existing conventional technology, which will not be described in detail here; a conveyor belt 10 is arranged on the front side of the clamping mechanical arm 1, and two mutually symmetrical support plates 2 are arranged on the front side of the conveyor belt 10, a crossbeam plate 20 is fixedly installed between the two support plates 2, and a clamping device 3 is arranged on the two support plates 2, and the clamping device 3 includes a long shaft 31 rotatably connected to the two support plates 2, and a rectangular frame 32 is fixedly installed on the long shaft 31, and the rectangular frame 3 2 are provided with two symmetrical clamping assemblies 33 on the inner side surfaces of the upper and lower side plates, and the clamping assembly 33 includes an electric push rod 331 fixedly mounted on the rectangular frame 32, and a clamping block 334 is provided on the telescopic axis of the electric push rod 331. The end of the long axis 31 is coaxially provided with a driving motor 30 to ensure that when in use, the clamping mechanical arm 1 can be used to clamp and transfer the workpiece transported on the conveyor belt 10 to the clamping assembly 33, and then the electric push rod 331 is used to drive the clamping block 334 to clamp the workpiece, thereby completing the automatic clamping operation.

[0027] In this embodiment, the output shaft end of the drive motor 30 is fixedly mounted on the long shaft 31, and the drive motor 30 is fixedly mounted on the support plate 2, so that the drive motor 30 can be used to drive the long shaft 31 to rotate, and further drive the rectangular frame 32 to rotate, so as to adjust the orientation of the clamped workpiece and facilitate welding clamping operations on multiple parts of the workpiece.

[0028] Specifically, the upper and lower clamping blocks 334 are positioned opposite to each other and are used for clamping operations of welded parts.

[0029] Furthermore, a rectangular plate 332 is fixedly installed at the end of the telescopic shaft of the electric push rod 331, and a protrusion 333 is fixedly installed at the end of the clamping block 334. The rectangular plate 332 and the protrusion 333 are fixedly connected by a plurality of fastening bolts, which facilitates the installation, disassembly and replacement operations of the clamping block 334, and realizes the replacement of clamping blocks 334 of different models for clamping.

[0030] In addition, a support frame 11 is provided on the rear side of the support plate 2, and two symmetrical rotating shafts 12 are rotatably connected between the front and rear side plates of the support frame 11. The conveyor belt 10 is sleeved on the two rotating shafts 12, and a stepping motor 13 is coaxially provided at the end of one of the rotating shafts 12 to facilitate driving the conveyor belt 10 to rotate for conveying operations.

[0031] It is worth noting that the output shaft end of the stepper motor 13 is fixedly mounted on the rotating shaft 12 , and the stepper motor 13 is fixedly mounted on the supporting frame 11 , so that the stepper motor 13 can be used to drive the rotating shaft 12 to rotate.

[0032] It is worth noting that after the starting point of the output shaft of the driving motor 30 is determined, the rotation angle of the output shaft of the driving motor 30 is controlled between negative 180 degrees and positive 180 degrees so as not to affect other wiring operations.

[0033] When the automatic clamping mechanism for welding of an industrial robot of the present invention is in use, the stepper motor 13 is connected to an external power supply and made to work. When the stepper motor 13 works, the output shaft thereon rotates to drive the rotating shaft 12 to rotate. The rotating shaft 12 rotates to drive the conveyor belt 10 to rotate, so as to realize the conveying operation of the workpiece. After the workpiece is conveyed to the position of the clamping mechanical arm 1, the stepper motor 13 stops working, and then the clamping mechanical arm 1 is started and made to work. When the clamping mechanical arm 1 works, the workpiece conveyed on the conveyor belt 10 is clamped and transported to the clamping component 33. Then the electric push rod 331 is started and made to work. When the electric push rod 331 works, the workpiece conveyed on the conveyor belt 10 is clamped and transported to the position of the clamping component 33. The extension of the telescopic shaft drives the clamping block 334 to move, thereby realizing the clamping operation on the workpiece. After clamping and fixing, the clamping robot arm 1 is released and continues to clamp the next workpiece and place it at another clamping component 33, and continues to use another clamping component 33 to clamp the workpiece. At this time, the clamping operation of the two workpieces is completed, and the clamping robot arm 1 returns to the initial position, and the welding operation is performed using an external welding robot. When necessary, the drive motor 30 can be connected to an external power supply and made to work. When the drive motor 30 works, the output shaft thereon rotates, driving the rectangular frame 32 and the workpiece clamped on the clamping block 334 to rotate.

[0034] The above shows and describes the basic principle, main features and 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 preferred examples of the utility model and are not used to limit 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 of the utility model is defined by the attached claims and their equivalents.

Claims

1. An industrial robot welding automatic clamping mechanism, comprising a clamping robot arm (1), characterized in that: A conveyor belt (10) is arranged at the front side of the clamping mechanical arm (1), and two mutually symmetrical support plates (2) are arranged at the front side of the conveyor belt (10), a cross beam plate (20) is fixedly installed between the two support plates (2), and a clamping device (3) is arranged on the two support plates (2), and the clamping device (3) comprises a long shaft (31) rotatably connected to the two support plates (2), a rectangular frame (32) is fixedly installed on the long shaft (31), and two mutually symmetrical clamping components (33) are arranged on the upper and lower side plate bodies of the rectangular frame (32), and the clamping component (33) comprises an electric push rod (331) fixedly installed on the rectangular frame (32), and a clamping block (334) is arranged on the telescopic shaft of the electric push rod (331), and a driving motor (30) is coaxially arranged at the end of the long shaft (31).

2. The automatic clamping mechanism for welding of industrial robots according to claim 1 is characterized in that: The output shaft end of the driving motor (30) is fixedly mounted on the long shaft (31), and the driving motor (30) is fixedly mounted on the supporting plate (2).

3. The automatic clamping mechanism for welding of industrial robots according to claim 1 is characterized in that: The upper and lower clamping blocks (334) are positioned opposite to each other and are used for clamping the welded parts.

4. The automatic clamping mechanism for welding of industrial robots according to claim 3 is characterized in that: A rectangular plate (332) is fixedly mounted on the end of the telescopic shaft of the electric push rod (331), a protrusion (333) is fixedly mounted on the end of the clamping block (334), and the rectangular plate (332) and the protrusion (333) are fixedly connected by a plurality of fastening bolts.

5. The automatic clamping mechanism for welding of industrial robots according to claim 1 is characterized in that: A support frame (11) is arranged at the rear side of the support plate (2); two symmetrical rotating shafts (12) are rotatably connected between the front and rear side plates of the support frame (11); the conveyor belt (10) is sleeved on the two rotating shafts (12); a stepping motor (13) is coaxially arranged at the end of one of the rotating shafts (12).

6. The automatic clamping mechanism for welding of an industrial robot according to claim 5, characterized in that: The output shaft end of the stepper motor (13) is fixedly mounted on the rotating shaft (12), and the stepper motor (13) is fixedly mounted on the supporting frame (11).

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