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Numerical controllable scissor mechanism and its composite scissor mechanism driving system

A technology of scissor mechanism and driving system, which is applied in the direction of hoisting device, lift frame, etc., can solve the problems of small expansion ratio, small load capacity, inaccurate terminal positioning, etc., achieve large expansion ratio, improve load capacity and stability, Accurate effect of telescopic positioning

Inactive Publication Date: 2015-10-21
唐易平
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Existing scissor mechanisms all adopt non-numerical control driving methods, such as air cylinders, oil cylinders or mechanical types, such as U.S. Patent US 8151935B2, US 4867277, etc., these The mechanism has the disadvantage of inaccurate terminal positioning
However, existing numerically controllable mechanisms, such as articulated robotic arms driven by servo motors, have the disadvantages of small expansion ratio and small load capacity.

Method used

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  • Numerical controllable scissor mechanism and its composite scissor mechanism driving system
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  • Numerical controllable scissor mechanism and its composite scissor mechanism driving system

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Embodiment Construction

[0018] The present invention is a numerically controllable scissor mechanism, such as figure 1 , 2 As shown, it includes a bracket unit 1, a frame 2, a CNC motor 3 installed on the frame 2, and a ball wire driven by the CNC motor 3, which are hinged at least two pairs of crossed scissor brackets 11 at the ends in turn. Rod 4, one end of the bottom of the pair of scissor brackets 11 at the bottom of the bracket unit 1 is hinged on the base 2 as the origin O, and the other end is hinged on the nut 41 of the ball screw 4; the ball screw 4 and The bracket units 1 are parallel or coincident in a plan view direction. In this embodiment, there are two sets of bracket units, and each of their corresponding hinge points is synchronously connected through the connecting shaft 30, such as figure 1 , 2 As shown, this structure is often applied in the current scissor mechanism. like figure 1 As shown, each support unit 1 has two pairs of scissor supports 11 .

[0019] When the CNC mo...

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Abstract

A numerically controllable scissors mechanism, including a support unit hinged sequentially at the ends of multiple crossed scissor supports, and also includes an organic base, a numerically controlled motor mounted on the base, and a motor driven by the numerically controlled motor. Ball screw, one end of the bottom scissor bracket at the bottom of the bracket unit is hinged on the machine base as the origin, and the other end is hinged on the nut of the ball screw, so that the scissor mechanism can be accurately calculated according to the stroke of the CNC motor. Displacement in the vertical direction, thereby realizing the numerical control of the displacement of the scissor mechanism, so the telescopic positioning of the scissor mechanism of the present invention is accurate, and compared with the scissor mechanism of the articulated mechanical arm driven by the servo motor, its expansion ratio is larger ; In addition, the scissor mechanism drive system composed of the scissor mechanism of the present invention in series, parallel or series-parallel mode can greatly improve the load capacity and stability of the scissor mechanism.

Description

【Technical field】 [0001] The invention relates to a numerically controllable scissor mechanism and a combined scissor mechanism driving system, in particular to a composite scissor mechanical arm with accurate positioning, large expansion and contraction ratio and large load. 【Background technique】 [0002] Existing scissor mechanisms all adopt non-numerical control driving methods, such as air cylinder, oil cylinder or mechanical type, such as US patent US 8151935B2, US 4867277, etc. These mechanisms have the disadvantage of inaccurate terminal positioning. However, existing numerically controllable mechanisms, such as articulated manipulators driven by servo motors, have the disadvantages of small expansion ratio and small load capacity. 【Content of invention】 [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a numerically controllable scissor mechanism with accurate positioning, large expansion ratio and large loa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66F7/06B66F7/28
Inventor 唐建柳
Owner 唐易平
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