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Variable-ball-diameter automatic screening and ball grinding machine

An automatic screening and ball grinding machine technology, which is applied to spherical grinders, grinding machine tools, and parts of grinding machine tools, can solve problems affecting production efficiency, product quality, and automatic detection of ball size, so as to reduce the splash of abrasive materials, The effect of reducing labor intensity and uniform pressure

Pending Publication Date: 2019-04-19
INST OF METAL RESEARCH - CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual working process, the large ring spheres cannot roll regularly to achieve a better grinding effect. The operator can only reduce the pressure of the upper plate and adjust the rotation speed of the lower plate to avoid stacking and fragmentation of the large ring spheres. The ball size cannot be automatically detected by the ball grinding machine itself, and then the ball grinding process can be automatically controlled, which not only affects production efficiency but also affects product quality

Method used

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  • Variable-ball-diameter automatic screening and ball grinding machine
  • Variable-ball-diameter automatic screening and ball grinding machine
  • Variable-ball-diameter automatic screening and ball grinding machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] An automatic screening ball grinding machine with variable ball diameter, characterized in that: the ball grinding machine is composed of a hydraulic cylinder 1, a guide column 2, an upper plate 3, a lower plate 4, a machine base 7, a movable beam 8, a main shaft 11 and a motor 18 constitute;

[0029] The machine base 7 is provided with weight reducing holes 6, the lower plate 4 is set on the upper surface of the machine base 7, four guide posts 2 are evenly distributed on the machine base 7, and the movable beam 8 is slidingly connected with each guide post 2; the hydraulic cylinder 1 is connected with the movable beam 8, and drives the movable beam 8 to move up and down along the guide column 2, while the upper plate 3 is fixed under the movable beam 8, and the movable beam 8 can drive the upper plate 3 to move up and down; the motor 18 communicates with the main shaft 11 The upper plate 3 or the lower plate 4 are connected, and the main shaft 11 is driven to rotate t...

Embodiment 2

[0035]The difference from Embodiment 1 is that the upper plate 3 is fixed below the movable beam 8 through the main shaft 11, and the upper plate 3 and the main shaft 11 are connected by a composite flange, and the contact between the composite flange and the upper plate 3 is provided with a compression spring and a Fix the bolt assembly, wherein the upper surface of the upper plate 3 in contact with the composite flange is provided with variable-diameter blind holes, and the composite flange is provided with corresponding variable-diameter through holes, and the variable-diameter blind holes and the variable-diameter through holes are close to each other. The hole diameter of the side where the upper plate 3 is in contact with the composite flange is larger than the other side, and the fixing bolt is inserted into the blind hole of the upper plate 3 through the through hole of the composite flange, and the spring in the compressed state is stuck in the variable diameter blind h...

Embodiment 3

[0037] The difference from Embodiment 1 is that the outer surface of the main shaft 11 connected to the upper plate 3 is provided with threads, and the threaded sleeve matched with the thread is set on the main shaft 11, and when the upper plate 3 moves to the corresponding position, the threaded sleeve Unscrew, top the upper surface of the upper plate 3 to form a mechanical pressure maintaining device. The device can prevent the hydraulic system from being under pressure all the time when grinding the sphere, and make the pressure on the upper plate uniform, greatly reducing the splash of the grinding material, and improving the yield rate and grinding efficiency.

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Abstract

The invention provides a variable-ball-diameter automatic screening and ball grinding machine, aiming at solving the problems that bearing steel balls and hard alloy balls with high hardness and highbrittleness will have larger ring belt phenomenon after machining and are not prone to rolling behaviors in the grinding process, and the balls are easy to be cracked when being squeezed mutually, thus affecting the product quality. According to the variable-ball-diameter automatic screening and ball grinding machine, multiple concentric raceways and valve ports are arranged on the surface of a lower grinding disc, so that the effects that a core raceway grinds off ring belts of balls at a lower linear speed to prevent the balls from being stacked and crushed, the outer raceway accurately grinds at a higher linear speed, and the sizes of the balls are automatically screened by utilizing centrifugal force of the variable-ball-diameter automatic screening and ball grinding machine are achieved; and the variable-ball-diameter automatic screening and ball grinding machine can improve the production efficiency and the product quality.

Description

technical field [0001] The invention relates to a grinding machine for bearing steel balls and high-hardness and high-brittleness cemented carbide balls, and in particular provides an automatic screening grinding machine with variable diameter balls. Background technique [0002] Bearing steel balls and high-hardness and high-brittleness cemented carbide balls will have a large ring phenomenon after processing, and rolling behavior is not easy to occur during the grinding process, and the balls are easily crushed by mutual extrusion, which affects product quality. Most of the existing vertical ball grinding machines adopt the structure of upper and lower discs. The lower disc (sand disc) is a rotating working disc with multiple concentric raceways. The upper disc (fixed plate) is a pressure disc for adjusting the distance. The disc and the lower disc approach each other and rely on friction to drive the ball to roll to achieve the grinding effect. In the actual working proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B11/06B24B37/005B24B37/025B24B37/11B24B37/34B24B41/00B24B47/12
CPCB24B11/06B24B37/005B24B37/025B24B37/11B24B37/34B24B41/007B24B47/12
Inventor 张海峰朱正旺张宏伟单铁城王鸿飞王猛
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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