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Robot tension device

A tensioning device and robot technology, applied in the directions of manipulators, program-controlled manipulators, manufacturing tools, etc., can solve the problems of instability of the robot mechanical system, affecting production efficiency, disengagement of joint ball joints, etc., to achieve simple structure, improve safety, Reduce the effect of deformation

Inactive Publication Date: 2017-07-07
GSK CNC EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3. When the robot has a high speed and a large load, and the resulting penetration force and centrifugal force are greater than the spring tension, the joint ball hinge will be detached and cause dangerous accidents.
4. The exposed spring is easy to hide dirt and is not easy to clean, so it is not easy to be used in occasions with clean environment requirements, but in fact, most parallel robots are used in this occasion
[0004] In addition, in the contemporary era of rapid development of production automation, the defects of the current robot tensioning device are also likely to cause instability of the robot mechanical system, affect production efficiency and even cause economic losses

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] refer to figure 1 , a robot tensioning device, comprising: a first stretching member 1, a second stretching member 2 and an intermediate connecting member; the top end of the second stretching member 2 is provided with a block 21 concavely formed toward the center of the shaft , and the second stretching member 2 is formed with a cavity, the intermediate connecting member is arranged in the cavity of the second stretching member 2, the first stretching member 1 is connected to the second drawing member 2 through the intermediate connecting member The connection forms an elastic adjustment structure; such as Figure 5 , the intermediate connector includes a fastening screw 3, a guide post 5 and an elastic member 6; as figure 2 , one end of the guide post 5 has a boss 51, and the other end of the guide post 5 is provided with a threaded hole, such as Figure 4 , the first tension member 1 is connected to the threaded hole of the guide post 5 through the fastening screw...

Embodiment 2

[0042] refer to Figure 6 and Figure 7 , the difference from Example 1 is that: the cavity of the second stretching member 2 is provided with an internal thread, the adjusting nut 7 is threadedly connected to the internal thread of the second stretching member 2, and the One end of the adjusting nut 7 abuts against the boss 51 . The biggest difference between this embodiment and Embodiment 1 lies in the position setting of the adjusting nut 7 and the change of the structure of the guide post 5 . The adjusting nut 7 is arranged in the second tension member 2 , and one end of the adjusting nut 7 abuts against the boss 51 , so as to adjust the spring preload.

[0043] This embodiment has the following two implementation forms:

[0044] Firstly, the adjusting nut 7 is an inner hexagonal nut. Firstly, the first adjusting nut 7 is abutted against the boss 51, and then the second adjusting nut 7 is connected to strengthen the connection fastness. In this form of realization, an ...

Embodiment 3

[0048] refer to Figure 8 and Figure 9 , the difference from Example 1 is that: the first tensile member 1 is a square column structure, the second tensile member 2 is a square column structure, and the guide post 5 is a square column structure, which matches this , The retaining ring 4 also adopts a square column structure, and the block platform 21 is also a square column structure. Preferably, the guide post 5 is a hollow structure, which can reduce a certain weight of the device. All the other structures and functions are the same as in Embodiment 1.

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PUM

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Abstract

The invention discloses a robot tension device. The robot tension device comprises a first tension piece, a second tension piece and a middle connector, wherein a baffle table is arranged at the top end of the second tension piece; the middle connector is arranged in a cavity of the second tension piece; the first tension piece is connected with the second tension piece through the middle connector to form an elastic regulating structure; the middle connector comprises a fastening bolt, a guide post and an elastic part; the first tension piece is connected with a threaded hole of the guide post through the fastening bolt; and the elastic piece sleeves the guide post, and the two ends of the elastic part separately abut against the baffle table and a convex table of the guide post correspondingly. The robot tension device is great in tension and is adjustable in tension distance, reduces deformation of a driven rod by regulating the tension device and strengthens mechanism stability. The tension distance is adjustable, and therefore, manufacturing precision requirements of a spring are reduced, and manufacturing cost is reduced. When inertia force and centrifugal force are greater than tensile force of the device, the shaft shoulder of the spring post is baffled by a limiting sheet, so that a joint spherical hinge is prevented from separating to cause danger, and therefore, safety is improved.

Description

technical field [0001] The invention relates to the field of industrial robots, in particular to a connection device for a parallel robot. Background technique [0002] Parallel robots complete the picking and placing actions of small products of various shapes and types with high speed and high precision, and are widely used in electronics, medicine, food and other industrial fields. Compared with the series configuration, the parallel configuration has the characteristics of good rigidity, good dynamic performance (small motion inertia), no cumulative error, high precision, high speed and high acceleration, and is very suitable for high-speed pick-and-place actions on the production line. It is widely used in picking, arranging and labeling in food, medicine, daily chemical, electronics and other industries. Many research institutions and manufacturing companies are optimistic about its application prospects in the manufacturing field. [0003] However, there are some de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J19/00B25J9/00
CPCB25J19/00B25J9/003
Inventor 钱立江文明
Owner GSK CNC EQUIP