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CN-224217175-U - Adjustable arm teaching structure

CN224217175UCN 224217175 UCN224217175 UCN 224217175UCN-224217175-U

Abstract

The utility model provides an adjustable mechanical arm teaching structure, and mainly relates to the technical field of teaching instrument equipment. The utility model provides an adjustable arm teaching structure, includes base, arm model body, the articulated backup pad in base top, the cooperation of base top sets up the screw rod, screw rod outer lane threaded connection slider, slider both sides face symmetry articulates the connecting rod, it is articulated with the backup pad bottom with the connecting rod other end, the fixed pivot that sets up in backup pad top, the fixed sleeve that sets up in pivot top, the fixed arm model body that sets up in sleeve top. The mechanical arm model body has the beneficial effects that the inclination angle of the mechanical arm model body can be continuously adjusted through the threaded transmission mechanism of the screw rod and the sliding block, and the mechanical arm model body can rotate at any angle within the horizontal range of 360 degrees through the worm and gear transmission mechanism.

Inventors

  • MENG QIWEN
  • HE MIAO
  • WANG HUI

Assignees

  • 乌兰察布职业学院

Dates

Publication Date
20260508
Application Date
20250512

Claims (5)

  1. 1. The utility model provides an adjustable arm teaching structure, includes base (1), arm model body (2), its characterized in that base (1) top articulates backup pad (3), base (1) top cooperation sets up screw rod (4), screw rod (4) outer lane threaded connection slider (5), slider (5) both sides face symmetry articulates there is connecting rod (6), connecting rod (6) other end is articulated with backup pad (3) bottom, backup pad (3) top is fixed to set up pivot (7), pivot (7) top is fixed to set up sleeve (8), sleeve (8) top is fixed to set up arm model body (2).
  2. 2. The teaching structure of the adjustable mechanical arm of claim 1, wherein the top of the rotating shaft (7) is abutted to the top of the inner wall of the sleeve (8), a bearing (9) is sleeved on the outer ring of the rotating shaft (7), the outer ring of the bearing (9) is abutted to the inner wall of the sleeve (8), a retainer ring is fixedly arranged on the outer ring of the rotating shaft (7) near the bottom of the bearing (9), a stop block (10) is symmetrically and fixedly arranged on the sleeve (8), and the stop block (10) passes through the sleeve (8) and is abutted to the bottom of the retainer ring.
  3. 3. The teaching structure of the adjustable mechanical arm of claim 1, wherein a worm wheel is arranged on the outer ring of the sleeve (8), a worm (11) is rotatably arranged on the top of the supporting plate (3), the worm (11) is meshed with the worm wheel, and a first hand wheel is fixedly arranged at the end part of the worm (11).
  4. 4. The teaching structure of the adjustable mechanical arm of claim 1, wherein the screw rod (4) is fixedly arranged at the top of the base (1) through two bearing seats, and a second hand wheel (12) is fixedly arranged at the end part of the screw rod (4).
  5. 5. The teaching structure of the adjustable mechanical arm of claim 4, wherein supporting legs are fixedly arranged at four corners of the bottom of the base (1), universal wheels are fixedly arranged at the bottoms of the supporting legs, and a balancing weight (13) is fixedly arranged at one end, close to the second hand wheel (12), of the bottom of the base (1).

Description

Adjustable arm teaching structure Technical Field The utility model mainly relates to the technical field of teaching instruments, in particular to an adjustable mechanical arm teaching structure. Background In mechanical engineering and automation teaching, a mechanical arm model is an important teaching aid for displaying the motion principle, structural design and control logic of a mechanical arm. However, the following technical problem generally exists in the existing mechanical arm teaching device, and angle adjustment function is single, and many fixed mounting of traditional mechanical arm model only can realize the joint rotation of mechanical arm body, lacks whole inclination adjustment function, has restricted the scene coverage of teaching demonstration. Secondly, structural stability is not enough, when carrying out slope or rotation regulation to the arm model, current device relies on simple dumpling more and connects or sliding construction, lacks effectual spacing anti-drop design, exists equipment and emptys the risk, influences the security and the reliability of teaching process. Disclosure of utility model The utility model aims to achieve the aim, and the aim is achieved by the following technical scheme: The utility model provides an adjustable arm teaching structure, includes base, arm model body, the articulated backup pad in base top, the cooperation of base top sets up the screw rod, screw rod outer lane threaded connection slider, slider both sides face symmetry articulates the connecting rod, it is articulated with the backup pad bottom with the connecting rod other end, the fixed pivot that sets up in backup pad top, the fixed sleeve that sets up in pivot top, the fixed arm model body that sets up in sleeve top. The top of the rotating shaft is abutted with the top of the inner wall of the sleeve, the bearing is sleeved on the outer ring of the rotating shaft, the outer ring of the bearing is abutted with the inner wall of the sleeve, the outer ring of the rotating shaft is close to the bottom of the bearing to fixedly arrange a check ring, the sleeve is symmetrically and fixedly provided with check blocks, and the check blocks penetrate through the sleeve and are abutted with the bottom of the check ring. The worm wheel is arranged on the outer ring of the sleeve, the worm is arranged at the top of the supporting plate in a rotating mode, the worm is connected with the worm wheel in a meshed mode, and a first hand wheel is fixedly arranged at the end portion of the worm. The screw is fixedly arranged at the top of the base through two bearing seats, and a second hand wheel is fixedly arranged at the end part of the screw. Support legs are fixedly arranged at four corners of the bottom of the base, universal wheels are fixedly arranged at the bottoms of the support legs, and a balancing weight is fixedly arranged at one end, close to the second hand wheel, of the bottom of the base. Compared with the prior art, the utility model has the beneficial effects that: The utility model has simple structure, convenient installation and use, can realize continuous adjustment of the inclination angle of the mechanical arm model body by matching the threaded transmission mechanism of the screw rod and the sliding block with the hinged structure of the connecting rod and the supporting plate, and simultaneously, the worm gear transmission mechanism formed by the worm wheel and the worm of the sleeve outer ring can realize arbitrary angle rotation of the mechanical arm model body within the 360-degree horizontal range by rotating the first hand wheel; The bearing ensures smooth rotation of the sleeve, the rigid abutting structure of the retainer ring and the stop block effectively limits axial displacement of the sleeve, the risk of falling off of mechanical parts caused by overlarge inclination angle is avoided, and when the mechanical arm model body is inclined, the reverse moment generated by the balancing weight and the gravity center offset moment of the mechanical arm form dynamic balance. Drawings FIG. 1 is a schematic view of a first view angle structure of the present utility model; FIG. 2 is a schematic diagram of the front view of the present utility model; FIG. 3 is a schematic view of a second view angle structure of the present utility model; FIG. 4 is a schematic cross-sectional view of the present utility model; fig. 5 is a schematic view of the stopper structure of the present utility model. The drawing shows the reference numbers of 1, a base, 2, a mechanical arm model body, 3, a supporting plate, 4, a screw rod, 5, a sliding block, 6, a connecting rod, 7, a rotating shaft, 8, a sleeve, 9, a bearing, 10, a stop block, 11, a worm, 12, a second hand wheel, 13 and a balancing weight. Detailed Description The utility model will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that these examples are illustrative