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Five axis linkage parallel-tandem digital control machine tool

A five-axis linkage, CNC machine tool technology, applied in the direction of program control manipulators, manipulators, metal processing machine parts, etc., can solve the problems of motion parameter coupling, few mechanism prototypes, complex structure and so on

Inactive Publication Date: 2006-06-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the disadvantages of high cost and complex structure of the existing six-degree-of-freedom parallel machine tool to realize five-axis motion, and the existing five-degree-of-freedom parallel machine tool has few mechanism prototypes, poor structural symmetry, and coupling of motion parameters, the present invention provides a It is a five-axis linkage and series CNC machine tool that can realize three-dimensional movement and two-dimensional rotation with simple structure, low cost, easy manufacture, good structural symmetry, no coupling of motion parameters, and good rigidity, precision and dynamic performance. Frame 1, motion platform 2 and connecting rod, connecting rod is four, and one end of four connecting rods is all connected with frame 1, and the other end of four connecting rods is all hinged with motion platform 2; There is also a mobile workbench 4 below

Method used

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specific Embodiment approach 1

[0006] Specific embodiment one: the five-axis linkage and series CNC machine tool of the present embodiment adopts a vertical structure, which includes a frame 1, a motion platform 2 and connecting rods, and there are four connecting rods, and one end of the four connecting rods is connected to the frame 1 connection, the other ends of the four connecting rods are all hinged with the motion platform 2; the motion platform 2 is arranged under the frame 1, and during work, a tool for processing is installed on the motion platform 2; on the motion platform 2 There is also a mobile workbench 4 below, and the workpiece to be processed is fixed on the mobile workbench 4. The four connecting rods are connected to the moving platform 2 through ball joints, which can realize the movement of the connecting rods in all directions relative to the moving platform, and the four ball joints are separated by 90 degrees on the plane of the moving platform 2 The symmetrical arrangement can keep...

specific Embodiment approach 2

[0008] Specific embodiment two: the difference between this embodiment and specific embodiment one is that a slideway 5 is fixed on the frame 1, and the slideway 5 is one, and two slide blocks are arranged on the slideway 5; Two of the connecting rods are fixed-length connecting rods, and the two fixed-length connecting rods are respectively connected to the two sliders through rotating pairs; the other two connecting rods among the four connecting rods are telescopic connecting rods, and the telescopic connecting rods The rod and the frame 1 are connected by a Hooke hinge.

[0009] The overall structure of this embodiment is as follows figure 2 As shown in the figure, the coordinate system is established, the Y axis is along the direction of the slideway 5, the X axis is in the plane formed by the slideway 5 and the fixed rods 1-1, 1-2 of the frame 1, and the Z axis is vertically upward. The motion platform 2 is connected to the frame 1 and the fixed rod 1 of the frame 1 th...

specific Embodiment approach 3

[0010] Embodiment 3: The difference between this embodiment and Embodiment 1 is that two cranks are installed on the frame 1, and the two cranks are respectively connected with the frame 1 through a rotating pair; two of the four connecting rods are The first connecting rod is a fixed-length connecting rod, and the two fixed-length connecting rods are respectively connected to the two cranks through the rotating pair; the other two connecting rods in the four connecting rods are telescopic connecting rods, and the two telescopic connecting rods are respectively connected to the frame 1 connected by a Hooke hinge.

[0011] The overall structure of this embodiment is as follows image 3 As shown in the figure, the coordinate system is established, the X-axis is in the plane formed by the fixed rods 1-1, 1-2 of the rack 1, the Z-axis is vertically upward, and the Y-axis is connected to the fixed rods 1-1, 1 of the rack 1. -2 parallel, motion platform 2 by "two fixed-length conne...

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Abstract

The five-axis linkage serioparallel numerically-controlled machine tool is one kind of parallel machine tool superior to available six freedom parallel machine tool, which has high cost and complicated structure for five-axis motion. The five-axis linkage serioparallel numerically-controlled machine tool includes a frame; a moving platform; four link rods, each of which has one end connected to the frame and the other end hinged the operate moving platform; and one shifting work table set below the moving platform. The machine tool of present invention has high symmetry, high rigidity, high precision and high dynamic performance, no motion coupling, simple structure, low cost and easy manufacture. The present invention increases the structure forms of five-axis parallel machine tools, provides the theoretical research on four and five freedom parallel machine tools with mechanism prototype, and can realizes all the functions of available six freedom parallel machine tool.

Description

technical field [0001] The invention relates to a parallel machine tool. Background technique [0002] In the past ten years, parallel machine tool has been a hot topic in the field of CNC machine tool research at home and abroad. Parallel machine tools, also known as virtual axis machine tools, are knowledge-intensive, intelligence-intensive, and technology-intensive mechatronics high-tech products. They are the intersection of multidisciplinary application technologies such as parallel robots, CNC machinery, computer control, precision measurement, and CNC machining. Scholars at home and abroad have invested a lot of research work on it. [0003] Judging from the general situation of the development of parallel machine tool products and technologies at home and abroad, most of the research in the past few years has focused on the six-degree-of-freedom parallel mechanism. In recent years, people have paid more and more attention to parallel mechanisms with few degrees of ...

Claims

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Application Information

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IPC IPC(8): B23Q1/44B23Q1/48B25J9/08
Inventor 伞红军王知行钟诗胜刘文涛
Owner HARBIN INST OF TECH
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