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Plain grinding machine

A cylindrical grinding machine and headstock technology, applied in the field of machinery, can solve the problems of large maintenance amount, inability to guarantee the machining accuracy of the top hammer type carbide, and rapid damage to the spindle bearing, so as to prolong the service life, improve the work efficiency, and improve the The effect of machine rigidity

Active Publication Date: 2009-06-17
ZHUZHOU HARD ALLOY GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the spring preload in the tailstock is limited, if the spring in the tailstock is increased, the axial force of the headstock will increase, and the headstock has no axial force control device or structure, so that the main shaft bearing of the headstock The damage is fast and the amount of maintenance is large; and the jacking force must overcome the self-weight, processing resistance and tool feed force at the same time, so the general-purpose cylindrical grinder cannot guarantee the processing accuracy of the top hammer cemented carbide

Method used

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  • Plain grinding machine

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Embodiment Construction

[0009] As shown in FIG. 1 , the cylindrical grinding machine of the present invention mainly includes a headstock A, a tailstock B, a bed C and a grinding head D. Tailstock B mainly comprises tailstock box 7, tailstock shaft 8 and top 12; The head frame A mainly includes the head frame box 1, the head frame shaft 2 and the transmission gear set 4; the head frame shaft 2 is supported on the head frame box 1 through the head frame front bearing 31 and the head frame rear bearing 32, and the transmission gear set 4 is installed on On the headstock shaft 2, between the front and rear bearings 31 and 32 of the headstock. A tailstock shaft sleeve 9 is designed between the tailstock box 7 and the tailstock shaft 8, which can slide axially in the tailstock box 7, and the tailstock shaft 8 connects with the tailstock front bearing 91 and the tailstock rear bearing 92. The shaft sleeve 12 is connected. The hydraulic cylinder 11 is fixed on the tailstock box 7 through its cylinder body...

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Abstract

The external grinding machine has one tailstock sleeve set between the tailstock case and the tailstock shaft, and one hydraulic cylinder fixed through a piston rod to the tailstock sleeve. The hydraulic cylinder has cylinder body fixed onto the tailstock case, and the tailstock shaft is connected through the bearings to the tailstock sleeve capable of sliding axially inside the tailstock case. The ends of both the tailstock shaft and the headstock shaft have bidirectional thrust bearing installed. The headstock and tailstock fixing structures of the external grinding machine are used in the external grinding of great size and great specific weight conic and cylindrical workpieces, and have the features of high working quality, high safety, convenient operation, high work efficiency, etc.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to cylindrical grinding machines, in particular to a grinding machine headstock and tailstock clamping structure for processing large-size, high-specific-gravity conical / cylindrical workpieces. Background technique [0002] Conical / cylindrical workpieces with large proportions, such as cemented carbide anvils, can only be processed by general-purpose cylindrical grinders at present. Hold on tight. The anvil-type hard alloy workpiece has a large proportion, and its external dimensions are also getting larger and larger, with a single weight of 75kg. Since the spring preload in the tailstock is limited, if the spring in the tailstock is increased, the axial force of the headstock will increase, and the headstock has no axial force control device or structure, so that the main shaft bearing of the headstock The damage is fast and the maintenance amount is large; and the jacking force...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B5/04
Inventor 刘斌王力民阳立庚戴珍国屠永宁谢英
Owner ZHUZHOU HARD ALLOY GRP CO LTD
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