Small hardware grinder

Abstract

The invention discloses a small hardware grinder comprising a grinding rack. A variable frequency motor is arranged on the inner side of the grinding rack. An output shaft of the variable frequency motor passes through a round hole to extend to the outer side of the grinding rack. A grinding head is fixedly connected to the end of the output shaft of the variable frequency motor. A screw rod liftis arranged at the top of the grinding rack and is located on one side of the grinding head. An automatic chuck is connected to the screw rod head of the screw rod lift. A telescopic cover is arrangedon the outer side of a screw rod of the screw rod lift. A shield is arranged on the outer side of the screw rod lift. The small hardware grinder has the characteristics of being large in applicationrange, high in locating precision and good in work stability.

Description

technical field [0001] The invention relates to a hardware grinding machine, in particular to a small hardware grinding machine. Background technique [0002] The function of the small hardware grinding machine is to clamp and fix the small workpiece, and then grind the surface or sharp corners of the workpiece through the grinding head, so as to complete the shape of the small workpiece and make the grinding surface have a high degree of smoothness. However, because the current grinding machine generally uses a three-jaw chuck to fix the workpiece, the grinding machine cannot fix some workpieces with unconventional shapes, and it will also cause asymmetrical parts such as oval parts and eccentric tubes when fixing The three jaws of the chuck cannot form a tight fit on the workpiece at the same time, thereby reducing the clamping stability of the grinding machine to the workpiece; and because the conventional grinding machine cannot rotate and tilt the workpiece after clampi...

AI Technical Summary

Problems solved by technology

However, because the current grinding machine generally uses a three-jaw chuck to fix the workpiece, the grinding machine cannot fix some workpieces with unconventional shapes, and it will also cause asymmetrical parts such as oval parts and eccentric tubes when fixing The three jaws of the chuck cannot form a tight fit on the workpiece at the same time, thereby reducing the clamping stability of the grinding machine to the workpiece; and because the conventional grinding machine cannot rotate and tilt the workpiece after clamping, resulting in The grinding machine needs to repeatedly position the workpiece during the multiple grinding process of a workpiece. This positioning and adjustment method not only reduces the grinding accuracy of the workpiece, but also reduces the clamping stability of the grinding machine, so that the workpiece In the event of force deviation or falling, the safety is poor

In addition, because the metal grinding machine will also cause high-temperature iron filings to splash when it is working, the connection and transmission parts of the grinding machine will reduce their own transmission stability after being impacted by iron filings, which further affects the working stability of the grinding machine. Sex and service life

Therefore, the existing grinding machine has the problems of small application range, low positioning accuracy, and poor working stability.

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