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Three-gantry five-axis linkage numerically-controlled machine tool bed structure and manufacturing process thereof

A five-axis linkage, CNC milling machine technology, used in manufacturing tools, metal processing equipment, metal processing machinery parts, etc., can solve the problems of low efficiency, high price, and high maintenance costs

Inactive Publication Date: 2018-11-16
HEBEI CHENGHANG MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Five-axis linkage CNC machine tools have always been restricted by western developed countries. They are expensive and maintenance costs are high. Once a collision occurs, it will cost a lot
Most of the domestic manufacturers only produce small and medium-sized five-axis machine tools, and there are few large-scale five-axis linkage machine tools, and the control method rarely achieves true five-axis linkage. Low collision avoidance factor

Method used

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  • Three-gantry five-axis linkage numerically-controlled machine tool bed structure and manufacturing process thereof
  • Three-gantry five-axis linkage numerically-controlled machine tool bed structure and manufacturing process thereof
  • Three-gantry five-axis linkage numerically-controlled machine tool bed structure and manufacturing process thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] This embodiment is a high-precision three-gantry five-axis linkage CNC milling machine.

[0055] Refer to attached Figure 1~4, The CNC milling machine includes a base 1, three gantry 2 installed above the base 1 and a numerical control system for driving and controlling the gantry 2. The numerical control system is installed in the numerical control platform cabinet 31 on one side of the milling machine, and the upper part of the numerical control platform cabinet 31 is provided with a wire channel rack 32, on which the electrical circuit and cooling water circuit are installed, and connected to the gantry structure through it, so that the wiring is neat and safe. Each gantry 2 of this embodiment is equipped with its own complete Siemens independent numerical control system, and the three gantry 2 can complete a large workpiece at the same time, and can also complete parts of different sizes respectively; each gantry 2 can use a program to select different It can also...

Embodiment 2

[0066] This embodiment is a three-gantry five-axis linkage CNC milling machine bed 10 structure.

[0067] Refer to attached Figure 5-6 , 20. The bed 10 includes a box-shaped structure and a carriage 20 arranged on it. The box-shaped structure is a three-box structure, which is formed by one-time casting of casting materials and lost foam, and diagonal tie bars are arranged in the box. The top of the box-shaped structure is equipped with left and right sets of racks and grooves, and the grooves are used to accommodate the motor in the gear box. The carriage 20 is connected with the rack through the anti-backlash gear, and the carriage 20 is connected with a gear box. It is connected with the toothed rack, and drives the carriage 20 to slide smoothly on the rack.

[0068] That is, the gear box adopted in this embodiment is a gear box with a double-gear structure, and the gear rack adopts a helical transmission gear rack with a precision of 5 grades and a modulus of 6. The mot...

Embodiment 3

[0077] This embodiment is a Y-axis installation structure of a three-gantry five-axis linkage CNC milling machine.

[0078] Refer to attached figure 1 , the CNC milling machine includes a base 1, a gantry 2 installed thereon and a numerical control system for driving and controlling the gantry 2, the base 1 includes two sets of beds 10 arranged in parallel, forming a five-axis linkage X-axis; the bed 10 There are three gantry 2 installed above, and the workbench 4 is below the gantry 2. Each gantry 2 is equipped with an independent numerical control system, and the contour points of the same positions of each gantry 2 are the same.

[0079] Refer to attached Figure 8-10 The gantry 2 includes a column 21 connected to the bed 10, a beam 22 mounted on the column 21, a ram 23 connected to the beam 22, and a main shaft 24 connected to the ram 23, and a milling head is installed below the main shaft 24. The crossbeam 22 constitutes the Y-axis of five-axis linkage, and the ram 23 ...

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Abstract

The invention discloses a three-gantry five-axis linkage numerically-controlled machine tool bed structure and a manufacturing process thereof. The three-gantry five-axis linkage numerically-controlled machine tool bed structure comprises a box structure and a trailing board mounted on the box structure, wherein the box structure is in a three-box structure and is formed through one casting of casting materials and lost foam; above the box structure, a rack is arranged; the trailing board is connected with a gearbox, inside which a motor and a reducer are arranged, and the gearbox is drivinglyconnected with the rack through double gears to drive the trailing board to smoothly slide on the box structure. By means of the three-box structure, the three-gantry five-axis linkage numerically-controlled machine tool bed structure only allows change in X-axis length; the box structure is provided with diagonal draw steel bars which are meanwhile thickened, so that the practical application temperature difference is within 10 DEG C, and even when external weather, workshop temperature and the like change, X-axis change is close to zero.

Description

technical field [0001] The invention relates to the field of milling machines, in particular to a three-gantry five-axis linkage CNC milling machine bed structure and a manufacturing process thereof. Background technique [0002] CNC machine tools are the working machines of the manufacturing equipment industry, the cornerstone of advanced technology and equipment modernization, and strategic equipment to ensure the development of high-tech entrepreneurship and the modernization of national defense and military industries. The equipment manufacturing industry is the cornerstone of a country's industry. It provides important means for the development of new technologies and new products and modern industrial production, and is an indispensable strategic industry. The machine tool is a symbol of a country's manufacturing level, and the five-axis linkage CNC machine tool system represents the highest level of the machine tool manufacturing industry. In a sense, it reflects the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q1/01B23Q1/25
CPCB23Q1/015B23Q1/25
Inventor 介党阳王惠杨欢
Owner HEBEI CHENGHANG MACHINERY MFG
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