Transmission mechanism of a welding robot

Abstract

The present invention relates to a transmission mechanism of a welding robot, which belongs to the technical field of transmission mechanisms, and includes a rectangular base frame, a welding robot body and a fixing plate, wherein the left and right sides of the rectangular base frame are fixed with mounting plates. The transmission mechanism of the welding robot can fix the welding robot body to a position that needs to be fixed through four mounting holes on the left and right sides, and the welding robot body can weld objects. By starting the first driving motor, the first movable rectangular limit block threadedly connected to the outside of the first threaded rod is moved left and right under the limiting action of the rectangular base frame, and then the welding robot body can be driven to move left and right. By starting the second driving motor, the second movable rectangular limit block threadedly connected to the outside of the rectangular frame is moved forward and backward under the limiting action of the rectangular frame, and then the welding robot body can be driven to move forward and backward, thereby expanding the welding range of the welding robot.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission mechanisms, in particular to a transmission mechanism of a welding robot. Background Art

[0002] Welding robots are industrial robots used for automatic welding. Welding robots are widely used in welding operations that are repetitive, monotonous, and require long hours, or in welding operations in high-risk and harsh environments. They have the characteristics of high productivity, high quality, and high stability.

[0003] For example, Chinese patent CN218285559U discloses a welding robot, including a robot body, a welding head fixedly installed at the driving end of the robot body; a rotating air intake hood is provided on the periphery of the welding head; the rotating air intake hood is connected to an extraction mechanism through a pipeline. The utility model proposes a welding robot, which is provided with a rotating air intake hood and cooperates with the extraction mechanism to extract smoke and sparks, reduce the splashing of sparks and the dispersion of smoke, and increase the convenience of subsequent processing.

[0004] Although the above patent has many advantages, the welding robot in this patent is fixed at the position where it needs to be fixed by bolts, and its welding range has certain limitations, which reduces its practicality. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a transmission mechanism for a welding robot, which has the advantages of being able to expand the welding range of the welding robot, etc., and solves the problem that the welding robot is fixed at a position where it needs to be fixed by bolts, and its welding range has certain limitations, thereby reducing the problem of practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transmission mechanism of a welding robot, comprising a rectangular base frame, a welding robot body and a fixing plate, the left and right sides of the rectangular base frame are fixed with mounting plates, the front and rear sides of the upper surface of the mounting plate are provided with mounting holes, the interior of the rectangular base frame is provided with a driving mechanism, and the upper surface of the fixing plate is provided with a clamping mechanism;

[0007] The driving mechanism includes a first threaded rod rotatably connected to the inside of a rectangular base frame through a bearing, a first driving motor is fixed to the left side of the rectangular base frame, the outer side of the first driving motor output shaft passes through the rectangular base frame and is fixedly connected to the left side of the first threaded rod, the outer side of the first threaded rod is threadedly connected to a first movable rectangular limit block, the first movable rectangular limit block is slidably connected to the inside of the rectangular base frame, and a connecting component is provided on the upper surface of the first movable rectangular limit block.

[0008] Further, the connecting assembly includes a rectangular frame fixed on the upper surface of the first movable rectangular limit block, the interior of the rectangular frame is rotatably connected to a second threaded rod through a bearing, a second drive motor is fixed to the front side of the rectangular frame, the outer side of the output shaft of the second drive motor passes through the rectangular frame and is fixedly connected to the front side of the second threaded rod, the outer side of the second threaded rod is threadedly connected to a second movable rectangular limit block, the second movable rectangular limit block is slidably connected to the interior of the rectangular frame, and the upper surface of the second movable rectangular limit block is fixedly connected to the lower surface of the fixed plate.

[0009] Furthermore, the locking mechanism includes a frame fixed on the upper surface of the fixing plate, the bottom end of the welding robot body is slidably inserted into the interior of the frame, the lower surface of the welding robot body is fitted with the upper surface of the fixing plate, and the left and right sides of the frame are provided with fixing openings, a fixing ring is fixed inside the fixing opening, a locking rod is slidably connected inside the fixing ring, and a fixing component is provided on the opposite side of the left and right fixing rings, and the locking rod is adapted to the gap between the fixing rings.

[0010] Furthermore, the fixing assembly includes a spring fixed on the opposite side of the left and right fixing rings, and a moving block is fixed on the opposite side of the left and right springs, and the spring is movably sleeved on the outside of the locking rod. The left and right sides of the bottom end of the welding robot body are provided with slots, and the moving block is fixed on the outside of the locking rod. The outsides of the opposite side of the left and right locking rods are slidably inserted into the inside of the left and right slots, and the moving block is slidably connected to the inside of the fixed port, and handles are fixed on the opposite sides of the left and right locking rods.

[0011] Furthermore, the first movable rectangular limiting block performs left-right linear movement inside the rectangular base frame.

[0012] Furthermore, the second movable rectangular limiting block moves linearly back and forth inside the rectangular frame.

[0013] Furthermore, the clearance between the moving block and the fixing opening is matched, and the clearance between the clamping slot and the clamping rod is matched.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The transmission mechanism of the welding robot can fix the welding robot body to a position that needs to be fixed through four mounting holes on the left and right sides. The welding robot body can weld objects. By starting the first drive motor, the first movable rectangular limit block threadedly connected to the outside of the first threaded rod is limited by the rectangular base frame to move left and right, and then the welding robot body can be driven to move left and right. By starting the second drive motor, the second movable rectangular limit block threadedly connected to the outside of the rectangular frame is limited by the rectangular frame to move forward and backward, and then the welding robot body can be driven to move forward and backward, thereby expanding the welding range of the welding robot.

[0016] 2. The transmission mechanism of the welding robot pulls the left and right handles in opposite directions, the left and right springs shrink, and drive the left and right clamping rods to move in opposite directions, the relative outer sides of the left and right clamping rods move out of the left and right clamping slots, and then the bottom end of the welding robot body is pulled upward from the inside of the frame, so that the welding robot body can be disassembled from the fixed plate and installed at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the driving mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the rectangular frame of the utility model;

[0020] Figure 4 It is a schematic diagram of the engaging mechanism of the utility model.

[0021] In the figure: 1 rectangular base frame, 2 welding robot body, 3 fixed plate, 4 mounting plate, 5 mounting hole, 6 driving mechanism, 601 first threaded rod, 602 first driving motor, 603 first movable rectangular limit block, 604 rectangular frame, 605 second threaded rod, 606 second driving motor, 607 second movable rectangular limit block, 7 engaging mechanism, 701 frame, 702 fixing port, 703 fixing ring, 704 engaging rod, 705 spring, 706 moving block, 707 slot, 708 handle. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1 In this embodiment, a transmission mechanism of a welding robot includes a rectangular base frame 1, a welding robot body 2 and a fixed plate 3. Mounting plates 4 are fixed on both the left and right sides of the rectangular base frame 1. Mounting holes 5 are opened on the front and rear sides of the upper surface of the mounting plate 4. A driving mechanism 6 is provided inside the rectangular base frame 1. The driving mechanism 6 can expand the welding range of the welding robot. A clamping mechanism 7 is provided on the upper surface of the fixed plate 3. The clamping mechanism 7 facilitates the disassembly and installation of the welding robot body 2 on the fixed plate 3.

[0024] See also Figure 2-3 In order to expand the welding range of the welding robot, in this embodiment, the driving mechanism 6 includes a first threaded rod 601 rotatably connected to the inside of the rectangular base frame 1 through a bearing, a first driving motor 602 is fixed to the left side of the rectangular base frame 1, the outer side of the output shaft of the first driving motor 602 passes through the rectangular base frame 1 and is fixedly connected to the left side of the first threaded rod 601, the outer side of the first threaded rod 601 is threadedly connected to a first movable rectangular limit block 603, the first movable rectangular limit block 603 is slidably connected to the inside of the rectangular base frame 1, and a connecting component is provided on the upper surface of the first movable rectangular limit block 603.

[0025] In this embodiment, the connecting component includes a rectangular frame 604 fixed on the upper surface of the first movable rectangular limit block 603, the interior of the rectangular frame 604 is rotatably connected to the second threaded rod 605 through a bearing, and a second drive motor 606 is fixed to the front of the rectangular frame 604. The outer side of the output shaft of the second drive motor 606 passes through the rectangular frame 604 and is fixedly connected to the front side of the second threaded rod 605. The welding robot body 2 can be fixed to the position where it needs to be fixed through the four mounting holes 5 on the left and right sides. The welding robot body 2 can weld objects. By starting the first drive motor 602, the first threaded rod 601 is driven to rotate, and the first movable rectangular limit block 603 threadedly connected to the outer side of the first threaded rod 601 moves left and right under the limiting action of the rectangular base frame 1, and then the welding robot body 2 can be driven to move left and right through the rectangular frame 604.

[0026] In this embodiment, the outer side of the second threaded rod 605 is threadedly connected to the second movable rectangular limit block 607, the second movable rectangular limit block 607 is slidably connected to the inside of the rectangular frame 604, the upper surface of the second movable rectangular limit block 607 is fixedly connected to the lower surface of the fixed plate 3, the first movable rectangular limit block 603 makes a left-right linear movement inside the rectangular base frame 1, and the second movable rectangular limit block 607 makes a front-back linear movement inside the rectangular frame 604.

[0027] It should be noted that by starting the second drive motor 606, the second threaded rod 605 is driven to rotate inside the rectangular frame 604, and the second movable rectangular limit block 607 threadedly connected to the outside of the rectangular frame 604 moves back and forth under the limiting action of the rectangular frame 604, and then can drive the welding robot body 2 to move forward and backward, thereby expanding the welding range of the welding robot.

[0028] See also Figure 4 In order to facilitate the disassembly and installation of the welding robot body 2 on the fixed plate 3, in this embodiment, the locking mechanism 7 includes a frame 701 fixed on the upper surface of the fixed plate 3, the bottom end of the welding robot body 2 is adapted to the gap of the frame 701, the bottom end of the welding robot body 2 is slidably inserted into the inside of the frame 701, the lower surface of the welding robot body 2 is fitted with the upper surface of the fixed plate 3, and the left and right sides of the frame 701 are provided with fixing openings 702, the inside of the fixing opening 702 is fixed with a fixing ring 703, the inside of the fixing ring 703 is slidably connected with a locking rod 704, and the opposite side of the left and right fixing rings 703 is provided with a fixing component, and the locking rod 704 is adapted to the gap of the fixing ring 703.

[0029] In this embodiment, the fixing assembly includes a spring 705 fixed on the opposite side of the left and right fixing rings 703, and a moving block 706 is fixed on the opposite side of the left and right springs 705. The spring 705 is movably mounted on the outside of the locking rod 704, and a locking groove 707 is provided on the left and right sides of the bottom end of the welding robot body 2.

[0030] It should be noted that the moving block 706 is fixed on the outer side of the locking rod 704, and the outer sides of the opposite sides of the left and right locking rods 704 are slidably inserted into the inside of the left and right side slots 707. The moving block 706 is slidably connected to the inside of the fixed port 702. The left and right locking rods 704 are fixed with handles 708 on the opposite sides. The gap between the moving block 706 and the fixed port 702 is matched, and the slot 707 is matched with the gap between the locking rod 704. By pulling the left and right handles 708 in opposite directions, the left and right springs 705 are contracted and drive the left and right locking rods 704 to move in opposite directions.

[0031] It should be noted that the left and right side locking rods 704 are moved out of the left and right side slots 707 at their relative outer sides, and then the bottom end of the welding robot body 2 is pulled upward from the inside of the frame 701, thereby facilitating the disassembly of the welding robot body 2 on the fixing plate 3 and also facilitating installation, thereby improving practicality.

[0032] The working principle of the above embodiment is:

[0033] (1) The welding robot body 2 can be fixed to a position where it needs to be fixed through the four mounting holes 5 on the left and right sides. The welding robot body 2 can weld objects. By starting the first drive motor 602, the first threaded rod 601 is driven to rotate. The first movable rectangular limit block 603 threadedly connected to the outside of the first threaded rod 601 is moved left and right under the limiting action of the rectangular base frame 1. Then, the welding robot body 2 can be driven to move left and right through the rectangular frame 604. By starting the second drive motor 606, the second threaded rod 605 is driven to rotate inside the rectangular frame 604. The second movable rectangular limit block 607 threadedly connected to the outside of the rectangular frame 604 is moved forward and backward under the limiting action of the rectangular frame 604. Then, the welding robot body 2 can be driven to move forward and backward, thereby expanding the welding range of the welding robot.

[0034] (2) By pulling the left and right handles 708 in opposite directions, the left and right springs 705 are contracted, and the left and right engaging rods 704 are driven to move in opposite directions, and the left and right engaging rods 704 are moved out of the left and right engaging grooves 707 at their relative outer sides, and then the bottom end of the welding robot body 2 is pulled upward from the inside of the frame 701, thereby facilitating the disassembly of the welding robot body 2 on the fixing plate 3 and facilitating the installation, thereby improving practicality.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A transmission mechanism of a welding robot, comprising a rectangular base frame (1), a welding robot body (2) and a fixing plate (3), characterized in that: The left and right sides of the rectangular base frame (1) are both fixed with mounting plates (4), the front and rear sides of the upper surface of the mounting plate (4) are both provided with mounting holes (5), the interior of the rectangular base frame (1) is provided with a driving mechanism (6), and the upper surface of the fixing plate (3) is provided with a locking mechanism (7); The driving mechanism (6) comprises a first threaded rod (601) rotatably connected to the inside of the rectangular base frame (1) via a bearing, a first driving motor (602) is fixed to the left side of the rectangular base frame (1), the outer side of the output shaft of the first driving motor (602) passes through the rectangular base frame (1) and is fixedly connected to the left side of the first threaded rod (601), the outer side of the first threaded rod (601) is threadedly connected to a first movable rectangular limit block (603), the first movable rectangular limit block (603) is slidably connected to the inside of the rectangular base frame (1), and a connecting component is provided on the upper surface of the first movable rectangular limit block (603); The locking mechanism (7) comprises a frame (701) fixed on the upper surface of a fixing plate (3); the bottom end of the welding robot body (2) is slidably inserted into the frame (701); the lower surface of the welding robot body (2) is in contact with the upper surface of the fixing plate (3); the left and right sides of the frame (701) are both provided with fixing openings (702); a fixing ring (703) is fixed inside the fixing opening (702); a locking rod (704) is slidably connected inside the fixing ring (703); a fixing assembly is provided on the opposite sides of the fixing ring (703) on the left and right sides; the locking rod (704) is adapted to the gap between the fixing ring (703).

2. The transmission mechanism of a welding robot according to claim 1, characterized in that: The connection assembly comprises a rectangular frame (604) fixed on the upper surface of a first movable rectangular limit block (603); a second threaded rod (605) is rotatably connected to the interior of the rectangular frame (604) via a bearing; a second drive motor (606) is fixed to the front of the rectangular frame (604); the outer side of an output shaft of the second drive motor (606) passes through the rectangular frame (604) and is fixedly connected to the front of the second threaded rod (605); a second movable rectangular limit block (607) is threadedly connected to the outer side of the second threaded rod (605); the second movable rectangular limit block (607) is slidably connected to the interior of the rectangular frame (604); and the upper surface of the second movable rectangular limit block (607) is fixedly connected to the lower surface of the fixed plate (3).

3. The transmission mechanism of a welding robot according to claim 1, characterized in that: The fixing assembly comprises a spring (705) fixed on the opposite side of the left and right fixing rings (703); a moving block (706) is fixed on the opposite side of the left and right springs (705); the spring (705) is movably sleeved on the outer side of the locking rod (704); a locking groove (707) is provided on the left and right sides of the bottom end of the welding robot body (2); the moving block (706) is fixed on the outer side of the locking rod (704); the outer sides of the opposite side of the left and right locking rods (704) are slidably inserted into the inside of the left and right locking grooves (707); the moving block (706) is slidably connected to the inside of the fixing port (702); and a handle (708) is fixed on the opposite side of the left and right locking rods (704).

4. The transmission mechanism of a welding robot according to claim 1, characterized in that: The first movable rectangular limiting block (603) moves linearly left and right inside the rectangular base frame (1).

5. The transmission mechanism of a welding robot according to claim 2, characterized in that: The second movable rectangular limiting block (607) moves linearly back and forth inside the rectangular frame (604).

6. The transmission mechanism of a welding robot according to claim 3, characterized in that: The movable block (706) is matched with the gap of the fixing opening (702), and the clamping groove (707) is matched with the gap of the clamping rod (704).

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