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The construction principle of tool grinder

The tool grinder has high precision, good rigidity, economical and practical, especially suitable for sharpening various small and medium-sized tools, such as reamers, taps, twist drills, reaming drills, various milling cutters, milling cutter heads, and gear shaper cutters. With the corresponding accessories, you can grind the outer circle, the inner circle and the plane, and you can also grind the template and the mold. The diamond grinding wheel can sharpen all kinds of cemented carbide tools.

1. The main components of tool grinder
The MQ6025A universal tool grinder is an improved T-tool grinder with better performance. After it is installed with accessories, it can sharpen common tools such as reamers, milling cutters, chute hobs, broaches, gear shapers and various special tools, and can also grind outer circles, inner mesh planes and templates, etc. The processing range is relatively wide.

The bed is a box-shaped integral structure casting, with a set of longitudinal V-shaped rails and flat rails in the front of the upper part, and a set of horizontal V-shaped rails and flat rails in the back. The longitudinal guide rail is equipped with a worktable. A horizontal carriage is installed on the horizontal guide rail, and electrical components are installed in the left door and back door of the bed.

The working table is divided into two parts: the upper working table and the lower working table. The lower working table is installed on the longitudinal guide rail of the bed. The guide rail is equipped with cylindrical roller needles, so that the working table can move easily and evenly. The front and back movement of the worktable can be operated by 4 handwheels, which is convenient for manipulating the worktable in different positions for grinding.

Horizontal carriage
The transverse carriage is installed on the transverse guide rail of the bed, and there are cylindrical roller needles between the guide rails. The transverse transmission is driven by the hand wheel through the trapezoidal screw and nut. One turn of the handwheel is 3mm, and one small division is 0.01mm. Since the hand wheel is mounted on the same screw, it can be operated standing in front of and behind the machine tool. The horizontal carriage is equipped with a grinding head frame and a lifting mechanism, and the hand wheel is shaken, and the grinding head frame is used for lateral feeding.

Grinding head and lifting mechanism

The grinding head motor adopts the standard A1-7132 motor. The parts are assembled, and the casing and the grinding tool casing are cast as a whole; the motor stator is changed from an internal pressure installation to an external pressure installation, and a micro-V belt is used to drive the spindle of the grinding head to rotate. The cones at both ends of the grinding head spindle can be equipped with grinding wheels for grinding. The speed is 4200 rpm and 5600 rpm in two gears. The grinding head motor can run forward and backward according to the grinding needs, controlled by the steering selector switch of the control panel. The lifting mechanism of the grinding head adopts a cylindrical guide rail and is guided by an oblique key. There are two types of grinding head lifting: manual and motorized. When manually. Turn the hand wheel, reduce the speed by the turbine pair and increase the speed by a pair of spur gears, and raise or lower the guide rail through the nut and the screw rod. When maneuvering, press the lifting button (the maneuvering button on the control panel), the motor is started, it is slowed down by a tooth difference, the screw is connected by the coupling, and the guide rail is raised or lowered by the nut.

2.The working principle of tool grinder

T-slots are machined on the turning angle bending plate 4, and the front and rear center seats 2 are installed, and they are positioned and locked by T-slot bolts 3 and positioning keys 11. The bending plate fixing plate 6 is fixed to the machine tool by two T-slot bolts 7 The side surface of the table is equipped with the bending plate positioning shaft 5, and the turning angle bending plate 4 is installed in the bending plate positioning shaft 5 to rotate and adjust the angle, and the fastening nut 9 is used to lock it. Piece 10 is a workpiece support plate, which is fixed on the vertical surface of the turning angle bending plate, and is used to support the tool tooth surface processing.

3.The use effect of tool grinder

The difficulty of machining taper workpieces in the two centers is solved, and new tools are added for tool finishing. The tooling is simple, light, and convenient to adjust and unload, which expands the processing range of the machine tool.

4. The characteristics and advantages of tool grinders

The working table adopts imported high-precision linear rolling guide, the table is stable, and the operation is light.
This machine can match various accessories according to the tool to be ground, and can grind various end mills, end mills,
R-type milling cutter, cylindrical milling cutter, face milling cutter, single-angle milling cutter, reamer, turning tool, R-type
Turning tools, hobbing tools, drills, taps, engraving tools, powerful cutting tools, paper cutters, etc.

Other types of knives
The motor can rotate 360 ​​degrees, and the two sides are equipped with grinding wheels to increase the controllability of the tool grinding.
For tools of the same material, just rotate the grinding wheel head to start grinding again, without changing the grinding wheel.
It can increase safety and reduce the time for interchange and refurbishment of grinding wheels.
Use high-strength FC30 cast iron to maintain mechanical precision for a long time.

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