JPS5856765A - Grinding head of surface grinder - Google Patents

Abstract

PURPOSE:To grind the surface of a work with curvature while following the original configuration of the work, when the grinder element of a surface grinder is pressed against said surface under rotation, by providing a retaining mechanism which ensures that the grinder element can make a constant motion in a certain direction with respect to the grinding wheel. CONSTITUTION:A segment grinder element 1 is inserted in a grinder holder 2 and fixed. A hing pin 5 is screw fitted on the tabs of an arm 4 to support this grinder holder 2, and the tip of this pin 5 is fitted in the bearing hole of the grinder holder 2, and then the arm and grinding wheel 9 are coupled by a laminated spring 6. The grinding wheel 9 is provided with bolt holes circumferentially for the purpose of mounting a grinder unit consisting of a certain number of segments. Grinder holder arms 4 on the grinding head can make vertical motion independently with the aid of the curvature of said laminated spring while the grinder holder 2 can swing with the aid of two hinge pins installed on the arms.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a segment grinding wheel holding mechanism for a vertical surface grinding machine.

Surface grinders that use cup-shaped grinding wheels or segment grinding wheels have a large grinding capacity and are often used for surface grinding of large workpieces. Since the grinding surface of the grindstone is fixed to , the locus of each point on the grinding surface of the whetstone is a perfect circle on a plane perpendicular to the axis of rotation, and the grinding surface is finished in an accurate plane. In other words, this type of surface grinder can grind down protrusions on the finished surface of the workpiece, curved convexities, or the entire flat surface to create a perfect flat surface, but it does not blend into the curved surface and grind it down. It is impossible to grind the material evenly based on its original shape.

In the relationship between the grinding wheel and the grinding wheel of a surface grinder, the present invention provides a holding mechanism that allows the grinding wheel to move in a certain direction with respect to the grinding wheel, and thereby presses and rotates the grinding wheel against the surface of the workpiece. The purpose of the present invention is to provide a holding mechanism for a segment grindstone that can uniformly grind a slightly curved surface of a workpiece by following its original shape.

To explain its structure with the help of a diagram, Figure 1 shows that the grinding wheel has one
Fig. 2 is a front view of the case where two segment grinding wheels are attached, and in the figure, 1 is a segment grinding wheel, 2 is a segment grinding wheel;
1 is a grindstone holder, and 1 is fitted into 2 and fixed to the holder with a set screw 3. Holes are bored in the center of both sides of the holder so that two shafts having the same center line can be fitted from both sides, and these holes act as bearings to allow rotation of the shafts fitted therein.

Reference numeral 4 denotes an arm supporting the whetstone holder, and a hinge bin 5 is screwed into both ears of the arm. By tightening 5, the tip of the bin is fitted into the bearing hole of the whetstone holder and fixed. A laminated spring 6 is attached to the upper or lower part of one end of the arm with a presser metal 7 and a screw 8 to form one segment grindstone unit. 10 is the drive shaft of the grinding machine, 9 is a grinding wheel, and 9 is fixed to 10 with a parallel key anti-pressure screw, but the grinding wheel has bolt holes around the entire circumference so that a certain number of segment grinding wheel units can be attached. Since it is a grinding wheel, a constant number of grinding wheel units are attached to the entire circumference of the grinding wheel using presser metals and screws at the tip of each laminated spring to complete one grinding head.

The grinding wheel holder arms of the grinding head assembled in this way can each independently move up and down by the curvature of the laminated springs, and the grinding wheel holders can be moved in line with the cutting line of the grinding wheel via two hinge pins attached to the arms. It can swing around parallel axes.

Now, when the above-mentioned grinding head is rotated and brought into contact with the slightly curved surface to be machined and is properly crimped, each segment grinding wheel adjusts to the height and slope of the surface separately while grinding the surface. Then, uniform surface grinding can be performed over a wide range by sliding the grinding head or the workpiece.

Conventionally, when descaling a wide and long sheet metal or deburring after drilling holes in a structural phase, the workpiece often has some curvature, resulting in low efficiency and Although it was necessary to use a special processing method at the expense of high costs, by using a surface grinder configured with the grinding wheel mounting method of the present invention, highly efficient grinding using a grinding wheel can be performed for the processing operation. Furthermore, by using multiple machines together, it can also be used for costly processing processes such as descaling sheet metal in line work, opening up a new frontier in the field of metal surface processing.

[Brief explanation of the drawing]

Figure 1 is a plan view explaining the configuration of the grinding head Figure 2 is a front view of the same as above.

Claims (1)

[Claims] (a) Each segment grindstone is provided with an independent grindstone holder. (b) Two shafts arranged on the same axis are attached to both sides of the grindstone holder. ti Attach the grindstone holder to the arm via the two shafts on both sides. 2) A constant segment grinding wheel is attached to the periphery of the grinding wheel using an arm and a laminated leaf spring as intermediaries. The grinding head of a surface grinder configured as described above.