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Crossbeam balance device of numerical-control single-column moving vertical milling lathe

A balancing device and vertical milling technology, which is applied to metal processing machinery parts, maintenance and safety accessories, metal processing equipment, etc., can solve problems such as beam bowing, hydraulic cylinders cannot be manufactured, and balance force of heavy hammers can be adjusted to reduce the stroke. and the height of the installation space, save the balance structure of the weight, and improve the effect of parallelism accuracy

Inactive Publication Date: 2012-07-11
齐重数控装备股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing machine tool beam balance structures generally use mechanical weight devices or hydraulic cylinder balance devices. Although mechanical weight devices can balance the weight of a part of the beam, they cannot adjust the weight of the weight accordingly as the vertical tool rest moves on the beam. Therefore, when the heavy-duty CNC single-column mobile vertical milling and turning machine with a mechanical weight device is currently used, when the vertical tool rest moves horizontally to the far end of the beam, the beam often bows, and the horizontal movement of the vertical tool rest has a negative impact on the worktable. The parallelism accuracy is very low, and the accuracy is often out of tolerance
On the other hand, since the stroke of the beam of the heavy-duty CNC single-column mobile vertical milling and lathe machine is generally more than 6 meters, such a long-stroke hydraulic cylinder cannot be manufactured, and the machine tool does not meet the installation height of the hydraulic cylinder when it is deployed, so ordinary hydraulic cylinders The balance device is not suitable for heavy duty CNC single column mobile vertical milling and turning machines

Method used

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  • Crossbeam balance device of numerical-control single-column moving vertical milling lathe
  • Crossbeam balance device of numerical-control single-column moving vertical milling lathe

Examples

Experimental program
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Effect test

example 1

[0014] like figure 1 As shown, the structure of the crossbeam balancing device of the CNC single-column mobile vertical milling and lathe of the present invention is: the crossbeam 4 is installed on the vertical guide rail of the column 8, the vertical tool rest 2 is installed on the horizontal guide rail of the crossbeam 4, and the grating ruler 5 is installed At the upper part of the middle part between the upper and lower guide rails of the beam 4, the pulley support seat assembly 6 is fixed on the upper end surface of the column 8, and the oil cylinder body 13 is fixed on the lower part of the inner cavity of the column 8, and the lower end surface of the oil cylinder body 13 is in contact with the inside of the column 8. The lower end surface of the cylinder is fixedly connected, the piston 10 is installed inside the cylinder body 13, the movable pulley assembly 9 is installed on the upper end of the piston 10, the pipe joint 11 and the cylinder pressure sensor 12 are inst...

example 2

[0016] The working process of the crossbeam balance device of this design CNC single-column mobile vertical milling lathe is: after the machine tool is started, the hydraulic oil enters the oil cylinder body 13 through the pipe joint 11, and the piston 10 receives the pressure of the hydraulic oil and tightens the wire rope assembly through the movable pulley assembly 9 1. The tension of the wire rope assembly 1 acts on the front end of the beam 4 through the joint 3. The tension of the wire rope assembly 1 is balanced with the gravity of the beam 4 and the vertical knife rest 2. Along with the vertical knife rest 2, the X-axis is moved along the horizontal guide rail of the beam 4. Feed movement, the overall center of gravity of the beam 4 and the vertical tool holder 2 gradually moves to the far end of the beam 4, the position of the vertical tool holder 2 on the beam 4 is fed back to the numerical control system, and the pressure of the hydraulic oil is fed back to the CNC sy...

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Abstract

The invention discloses a crossbeam balance device of a numerical-control single-column moving upright milling lathe. A crossbeam is mounted on vertical guide tracks of an upright column, a vertical tool rest is mounted on horizontal guide tracks of the crossbeam, a grating ruler is mounted in the middle of a space between the upper guide track and the lower guide track of the crossbeam, an oil cylinder is fixed to the lower end of the upright column, a pipe joint and an oil cylinder pressure sensor are mounted at the upper end of an outer wall of the oil cylinder, and the upper end of a piston of the oil cylinder is connected with a wall surface of the left side of the crossbeam by a steel wire rope and a pulley block. The crossbeam balance device has the advantages that a counterweight balance structure of the balance device is omitted, the weight of a machine tool is greatly lightened, the stroke of a piston rod of the hydraulic oil cylinder is halved, the height of a mounting space is halved, cost of the machine tool is lowered, parallelism precision of movement of the vertical tool rest of the numerical-control single-column moving vertical milling lathe relative to a working table is greatly improved, accordingly machining precision of end surfaces, curved surfaces and conical surfaces of rotating parts is greatly enhanced.

Description

technical field [0001] The invention relates to a beam balance device of a numerically controlled single-column mobile vertical milling and lathe. Background technique [0002] At present, during the movement of the vertical tool rest of the heavy-duty CNC single-column mobile vertical milling and turning machine, there is still a lack of a follow-up and precise balancing device for the overall weight of the beam and the tool rest. Existing machine tool beam balance structures generally use mechanical weight devices or hydraulic cylinder balance devices. Although mechanical weight devices can balance the weight of a part of the beam, they cannot adjust the weight of the weight accordingly as the vertical tool rest moves on the beam. Therefore, when the heavy-duty CNC single-column mobile vertical milling and turning machine with a mechanical weight device is currently used, when the vertical tool rest moves horizontally to the far end of the beam, the beam often bows, and th...

Claims

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Application Information

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IPC IPC(8): B23Q11/00
Inventor 李立强焦建华姜辉娄晓钟杨长青洪程东
Owner 齐重数控装备股份有限公司