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CN-224209943-U - Multi-rigidity transmission mechanical arm

CN224209943UCN 224209943 UCN224209943 UCN 224209943UCN-224209943-U

Abstract

The utility model discloses a multi-rigid transmission mechanical arm, which relates to the technical field of mechanical automation and comprises a bottom plate, a first machine seat, a first motor, a first screw rod, a first supporting plate, a vertical plate, a chain wheel, a chain, a driving seat, a sliding rail, a second screw rod, a sliding block, a mounting bottom plate, a mechanical arm main body, a second machine seat, a second motor, a rotating rod, an abutting block, a connecting frame, a bearing, a worm, an abutting groove, a worm wheel and a second supporting plate, wherein the bottom plate is used as a basic supporting platform of the whole mechanical arm and used for fixing and bearing other parts. According to the multi-rigid transmission mechanical arm, through the multi-rigid transmission design, the first motor is used for driving the sliding block to realize longitudinal movement, and the second motor is matched with the worm and the worm wheel to realize mechanical arm rotation, so that the whole structure is compact and stable. The utility model can improve the control precision and the operation stability of the mechanical arm, simplify the maintenance operation and is suitable for various industrial scenes.

Inventors

  • ZHANG WEICHEN
  • LI YONG
  • XIE JIANYUAN

Assignees

  • 清智智能装备制造(苏州)有限公司

Dates

Publication Date
20260508
Application Date
20250506

Claims (8)

  1. 1. The utility model provides a many rigidity transmission mechanical arm, a serial communication port, including bottom plate (1), first frame (2), first motor (3), first lead screw (4), first backup pad (5), riser (6), sprocket (7), chain (8), driving seat (9), slide rail (10), second lead screw (11), slider (12), mounting plate (13), arm main part (14), second frame (15), second motor (16), bull stick (17), butt piece (18), link (19), bearing (20), worm (21), butt groove (22), worm wheel (23) and second backup pad (24), wherein bottom plate (1) are as basic supporting platform, first frame (2) are fixed on bottom plate (1) and are used for installing first motor (3), first motor (3) are connected with first lead screw (4), first backup pad (5) are fixed on bottom plate (1) are used for supporting first lead screw (4) and slide rail (10), slider (12) are joined in marriage and are moved with first lead screw (4) through the screw pair and follow slider (10) and are fixed on slider (12) and are installed mechanical arm (14), the vertical plate (6) is vertically arranged on the bottom plate (1) and used for fixing the second machine seat (15), the second machine seat (15) is provided with the second motor (16), the second motor (16) is connected with the worm (21) through the rotating rod (17), the worm (21) is meshed with the worm wheel (23), the worm wheel (23) is connected with the mechanical arm main body (14) through the connecting frame (19), and the abutting block (18) is arranged in the abutting groove (22) to limit the rotation range of the mechanical arm main body (14).
  2. 2. A multi-rigid transmission mechanical arm according to claim 1, characterized in that the first support plate (5) is fixed on the bottom plate (1) by bolts and provides support for the first screw (4) and the slide rail (10).
  3. 3. A multi-rigid transmission mechanical arm according to claim 2, characterized in that the material of the first support plate (5) is a high-strength metal and is treated by precision machining to improve flatness and roughness.
  4. 4. The multi-rigid transmission mechanical arm according to claim 1, wherein the sprocket (7) is connected with the output shaft of the first motor (3) through a key slot, and the chain (8) is sleeved on the peripheries of the sprocket (7) and the driving seat (9) to transmit power.
  5. 5. A multi-rigid transmission mechanical arm according to claim 4, characterized in that the driving seat (9) is fixed on the sliding block (12) through a bolt, and the second screw (11) is driven to rotate through the chain (8).
  6. 6. A multiple rigid transmission mechanical arm according to claim 1, characterized in that the second support plate (24) is fixed to the vertical plate (6) by means of bolts and provides support for the second screw (11) and the slide rail (10).
  7. 7. The multi-rigid transmission mechanical arm according to claim 1, wherein the bearing (20) is installed at a key part of the rotating rod (17) and the worm (21), an inner ring of the bearing is tightly matched with the rotating rod (17) or the worm (21), and an outer ring of the bearing is installed on the vertical plate (6) or the connecting frame (19).
  8. 8. A multi-rigid transmission mechanical arm according to claim 1, characterized in that the abutment block (18) is made of an elastic material and is mounted in an abutment groove (22) for contacting the abutment groove (22) to limit the rotation range when the mechanical arm body (14) is rotated to a preset angle.

Description

Multi-rigidity transmission mechanical arm Technical Field The utility model relates to the technical field of mechanical automation, in particular to a multi-rigid transmission mechanical arm. Background In the technical fields of modern industrial automation and intellectualization, the mechanical arm is used as an important actuating mechanism and is widely applied to the scenes of manufacturing, assembly, carrying and the like. The core function is to realize the operation of the target object through accurate motion control. However, the existing mechanical arm still has a plurality of defects in the transmission mode and the structural design, especially in the design and application aspects of a multi-rigid transmission system. For example, some mechanical arms adopt a single transmission mode or a flexible transmission structure, and although the mechanical arms can meet certain movement requirements, the mechanical arms often have the problems of insufficient rigidity, low transmission efficiency, poor movement stability and the like under high-load, high-precision or complex working conditions. In addition, when the mechanical arms in the prior art move cooperatively with multiple degrees of freedom, the positioning accuracy is easy to be reduced due to transmission gaps or structural deformation, so that the overall operation effect is influenced. Therefore, aiming at the problems of insufficient transmission rigidity, complex structure, poor motion stability and the like in the prior art, development of a novel multi-rigidity transmission mechanical arm is needed to improve the overall performance of the mechanical arm and meet the application requirements under high load, high precision and complex working conditions. The utility model aims to solve the technical problems by an innovative multi-rigid transmission design and provide a more efficient, stable and reliable mechanical arm solution for the field of industrial automation. Disclosure of utility model The utility model provides a multi-rigid transmission mechanical arm aiming at the technical problems of insufficient control precision, poor running stability, complex structure and difficult maintenance existing in the motion process of the existing mechanical arm. By adopting a multi-rigid transmission design and combining an accurate transmission part and a stable supporting structure, the high-precision control of the mechanical arm in longitudinal movement and rotation movement is realized, and meanwhile, the reliability and compactness of the whole structure are improved. The utility model provides a multi-rigid transmission mechanical arm which comprises a bottom plate, a first machine seat, a first motor, a first screw rod, a first supporting plate, a vertical plate, a chain wheel, a chain, a driving seat, a sliding rail, a second screw rod, a sliding block, an installation bottom plate, a mechanical arm main body, a second machine seat, a second motor, a rotating rod, an abutting block, a connecting frame, a bearing, a worm, an abutting groove, a worm wheel and a second supporting plate. Wherein: The bottom plate is used as a basic supporting platform of the whole mechanical arm and is used for fixing and bearing other parts and providing a stable foundation for the whole structure of the mechanical arm. The first base is arranged on the bottom plate and used for fixing the first motor and related transmission parts, so that the first motor is ensured to be stable during working. The first motor is directly connected with the first screw rod, and the first screw rod is driven to rotate through rotation of the first motor. The rotation of the first screw rod drives the sliding block to conduct linear motion along the sliding rail, and therefore longitudinal movement of the mechanical arm is achieved. The first backup pad is fixed on the bottom plate for support first lead screw and slide rail, ensure its stability in the operation in-process, avoid skew or deformation because of vibration or load lead to. The vertical plate is vertically arranged on the bottom plate and used for fixing the second stand and other related components to form a supporting frame of the rotary motion part of the mechanical arm. The sprocket and the chain transmit power to the driving seat through cooperation, wherein the sprocket is connected with an output shaft of the first motor, and the chain transmits power to the driving seat, so that the driving seat can drive the second screw rod to perform rotary motion. The driving seat is arranged on the sliding block, moves along the sliding rail along with the sliding block, and drives the second screw rod to rotate through the chain so as to further drive the sliding block to linearly move along the sliding rail. The sliding rail is fixed on the bottom plate and used for guiding the sliding block to move along a preset track, so that the mechanical arm is ensured to have higher stability and accuracy in th