Adjustable robot transmission mechanism

Abstract

The utility model relates to the technical field of robot transmission mechanisms, and discloses an adjustable robot transmission mechanism which comprises an upper arm, a lower arm is rotatably arranged at the bottom end of the upper arm, adjusting structures are arranged in the upper arm and the lower arm respectively, and each adjusting structure comprises two movable arms which are inserted in the upper arm and the lower arm in a sliding mode respectively. A mounting hole is formed in one side of the movable arm, a rack is fixed to one side of the inner wall of the mounting hole, gears are rotationally arranged in the upper arm and the lower arm, and the gears are meshed with the rack. Through the arrangement of the adjusting structure, a worker starts the motor, the motor drives the gear to rotate, the gear pushes the rack meshed with the gear to move when rotating, the rack drives the movable arm to stretch out and draw back in the upper arm and the lower arm, and it can be guaranteed that the movable arm stretches out and draws back stably through the matched arrangement of the sliding groove and the gear; therefore, the movable arms in the upper arm and the lower arm can be quickly adjusted without a spring, the adjusting effect of a machine transmission mechanism is guaranteed, and the using effect of the device is improved.

Description

Technical Field

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

[0002] In the field of modern industrial and service robots, the performance and adaptability of the transmission mechanism directly affect the robot's work efficiency and flexibility. In practical applications, robots usually need to perform a variety of different tasks, such as handling, assembly, welding, and precision operations, and these tasks have different requirements for the transmission mechanism.

[0003] An existing adjustable transmission mechanism for a bionic robot (publication number: CN221872012U) has at least the following disadvantages: although the above-mentioned device contacts the limit of the telescopic arm by pulling the pin plate out of the plate slot, and the spring pops out the telescopic arm to adjust the length of the robot's connecting arm, the spring is prone to metal fatigue after long-term use, resulting in a decrease in elasticity, which makes the telescopic arm unable to extend and retract normally, and thus leads to poor adjustment effect of the mechanism. For this reason, we propose this utility model. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an adjustable robot transmission mechanism.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An adjustable robot transmission mechanism includes an upper arm, a lower arm is rotatably provided at the bottom end of the upper arm, and adjustment structures are provided inside the upper arm and the lower arm. The adjustment structure includes two movable arms that can be slidably inserted into the upper arm and the lower arm respectively. A mounting hole is opened on one side of the movable arm, and a rack is fixed to one side of the inner wall of the mounting hole. Gears are rotatably provided inside the upper arm and the lower arm, and the gears are meshed with the racks.

[0007] As a further solution of the present invention, a motor is fixed on one side of the upper arm and the lower arm, the output end of the motor passes through one side of the upper arm and the lower arm and is fixed to the gear, a slide groove is opened on one side of the inner wall of the mounting hole, and the gear and the slide groove are slidably arranged.

[0008] As a further solution of the present invention, limiting strips are fixed on four sides of the inner walls of the upper arm and the lower arm, and limiting grooves are provided on four sides of the outer wall of the movable arm.

[0009] As a further solution of the present invention, a movable notch is provided at the bottom end of the upper arm, a movable plate is fixed to one end of the lower arm close to the upper arm, and the movable plate and the movable notch are internally rotatably arranged.

[0010] As a further solution of the present invention, detection holes are provided on one side of the upper arm and the top surface of the lower arm, and scales are engraved on one side of the upper arm and the top surface of the lower arm.

[0011] As a further solution of the present invention, a safety pin can be slidably inserted into one side of the upper arm and the top surface of the lower arm, and a plurality of engaging holes are opened on one side of the movable arm, and the safety pin and the inside of the engaging hole can be slidably inserted.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The transmission mechanism, through the setting of the adjustment structure, the staff starts the motor, the motor drives the gear to rotate, and when the gear rotates, it pushes the rack engaged with it to move, and the rack drives the movable arm to extend and retract in the upper arm and the lower arm. The matching setting of the slide groove and the gear can ensure the stable extension and retraction of the movable arm, so that the movable arm in the upper arm and the lower arm can be quickly adjusted without the need for a spring, thereby ensuring the adjustment effect of the machine transmission mechanism and improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of an adjustable robot transmission mechanism proposed in the utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of an adjustable robot transmission mechanism proposed in the utility model;

[0016] Figure 3 This is a schematic diagram of the split structure of the movable arm of an adjustable robot transmission mechanism proposed in the present invention;

[0017] Figure 4 The utility model proposes an adjustable robot transmission mechanism Figure 2 Enlarged structural diagram at point A in the middle.

[0018] In the figure: 1. Upper arm; 2. Lower arm; 201. Movable arm; 202. Mounting hole; 203. Rack; 204. Gear; 205. Slide; 3. Limiting bar; 301. Limiting slot; 4. Movable notch; 401. Movable plate; 5. Detection hole; 501. Scale; 6. Safety pin; 601. Snap-in hole. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] Reference Figures 1-4 , an adjustable robot transmission mechanism, including an upper arm 1, a lower arm 2 is rotatably provided at the bottom end of the upper arm 1, and an adjustment structure is provided inside the upper arm 1 and the lower arm 2. The adjustment structure includes two movable arms 201 that can be slidably inserted into the upper arm 1 and the lower arm 2 respectively, and a mounting hole 202 is opened on one side of the movable arm 201. A rack 203 is fixed to one side of the inner wall of the mounting hole 202, and a gear 204 is rotatably provided inside the upper arm 1 and the lower arm 2, and the gear 204 is engaged with the rack 203.

[0023] In this embodiment, a motor is fixed on one side of the upper arm 1 and the lower arm 2. The output end of the motor passes through one side of the upper arm 1 and the lower arm 2 and is fixed to the gear 204. A slide groove 205 is provided on one side of the inner wall of the mounting hole 202. The gear 204 and the slide groove 205 are slidingly arranged. Through the setting of the adjustment structure, the staff starts the motor, and the motor drives the gear 204 to rotate. When the gear 204 rotates, it pushes the rack 203 engaged with it to move, and the rack 203 drives the movable arm 201 to extend and retract in the upper arm 1 and the lower arm 2. The coordinated setting of the slide groove 205 and the gear 204 can ensure that the movable arm 201 is stable in extension and retraction, so that the movable arm 201 in the upper arm 1 and the lower arm 2 can be quickly adjusted without a spring, thereby ensuring the adjustment effect of the machine transmission mechanism and improving the use effect of the device.

[0024] In this embodiment, limiting strips 3 are fixed on the four sides of the inner walls of the upper arm 1 and the lower arm 2, and limiting grooves 301 are provided on the four sides of the outer wall of the movable arm 201. The limiting strips 3 and the inner walls of the limiting grooves 301 are slidingly arranged, so that when the movable arm 201 is extended or retracted, the matching arrangement of the limiting strips 3 and the limiting grooves 301 can guide the movable arm 201.

[0025] In this embodiment, a movable notch 4 is provided at the bottom end of the upper arm 1, and a movable plate 401 is fixed to the end of the lower arm 2 close to the upper arm 1. The movable plate 401 and the movable notch 4 are internally rotated, and the upper arm 1 and the lower arm 2 are rotated through the movable plate 401 and the movable notch 4, thereby improving the flexibility of the device.

[0026] In this embodiment, a detection hole 5 is opened on one side of the upper arm 1 and the top surface of the lower arm 2, and a scale 501 is engraved on one side of the upper arm 1 and the top surface of the lower arm 2. The detection hole 5 and the scale 501 can facilitate the staff to observe the extension and retraction amount of the movable arm 201.

[0027] In this embodiment, a safety pin 6 is slidably inserted into one side of the upper arm 1 and the top surface of the lower arm 2. A plurality of snap-in holes 601 are opened on one side of the movable arm 201. The safety pin 6 is slidably inserted into the inside of the snap-in hole 601. When the movable arm 201 is extended or retracted, the staff can insert the safety pin 6 so that it enters the snap-in hole 601 at the corresponding position to ensure that the movable arm 201 is fixed after extension or retraction.

[0028] When the gear 204 is in the state of rotation, the gear 204 drives the gear 203 meshing with it to move, and the gear 203 drives the movable arm 201 to extend and retract in the upper arm 1 and the lower arm 2. The cooperation of the slide groove 205 and the gear 204 can ensure the stable extension and retraction of the movable arm 201, so that the movable arm 201 in the upper arm 1 and the lower arm 2 can be quickly adjusted without a spring. The limit bar 3 and the inner wall of the limit groove 301 are slidably arranged, so that when the movable arm 201 is extended and retracted, the cooperation of the limit bar 3 and the limit groove 301 can guide the movable arm 201. The upper arm 1 and the lower arm 2 are rotated by the movable plate 401 and the movable notch 4 to improve the flexibility of the device. The detection hole 5 and the scale 501 can facilitate the staff to observe the extension and retraction of the movable arm 201. When the movable arm 201 is extended and retracted, the staff can insert the safety pin 6 to make it enter the corresponding position of the card hole 601 to ensure the fixation of the movable arm 201 after extension and retraction.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. An adjustable robot transmission mechanism, comprising an upper arm (1), characterized in that: The lower end of the upper arm (1) is rotatably provided with a lower arm (2), and an adjustment structure is provided inside the upper arm (1) and the lower arm (2). The adjustment structure comprises two movable arms (201) slidably inserted into the upper arm (1) and the lower arm (2), respectively. A mounting hole (202) is provided on one side of the movable arm (201), and a rack (203) is fixed on one side of the inner wall of the mounting hole (202). A gear (204) is rotatably provided inside the upper arm (1) and the lower arm (2), and the gear (204) is meshed with the rack (203).

2. The adjustable robot transmission mechanism according to claim 1, characterized in that: A motor is fixed on one side of the upper arm (1) and the lower arm (2), and an output end of the motor passes through one side of the upper arm (1) and the lower arm (2) and is fixed to the gear (204). A sliding groove (205) is provided on one side of the inner wall of the mounting hole (202), and the gear (204) and the sliding groove (205) are slidably arranged.

3. The adjustable robot transmission mechanism according to claim 2, characterized in that: Limiting strips (3) are fixed on four sides of the inner walls of the upper arm (1) and the lower arm (2), and limiting grooves (301) are provided on four sides of the outer wall of the movable arm (201).

4. The adjustable robot transmission mechanism according to claim 3, characterized in that: A movable notch (4) is provided at the bottom end of the upper arm (1), and a movable plate (401) is fixed to one end of the lower arm (2) close to the upper arm (1), and the movable plate (401) and the movable notch (4) are internally rotatably arranged.

5. The adjustable robot transmission mechanism according to claim 4, characterized in that: A detection hole (5) is provided on one side of the upper arm (1) and the top surface of the lower arm (2), and a scale (501) is engraved on one side of the upper arm (1) and the top surface of the lower arm (2).

6. The adjustable robot transmission mechanism according to claim 5, characterized in that: A safety pin (6) is slidably inserted into one side of the upper arm (1) and the top surface of the lower arm (2). A plurality of engaging holes (601) are provided on one side of the movable arm (201). The safety pin (6) is slidably inserted into the interior of the engaging holes (601).

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