JPS6215071A - Sodium illumination tube grinding device - Google Patents

Abstract

PURPOSE:To grind an illuminator tube accurately into specified dimensions by fixing a guide and a pressure member to a traveling table, allowing the outer end of a measuring rod of specified length, which is inserted in a sodium illuminator tube laid alongside the guide, to contact said pressure member, by locating one end of the illuminator tube and by moving said traveling table toward a grinder element. CONSTITUTION:A measuring rod 10 is inserted in a sodium illuminator tube 21, and one of the rod ends is put in contact with the inner side face of a ring 22 at one end of the illuminator tube 21. Then this tube 21 is put alongside the side face of a guide 6 fixed to a traveling table 3, while the other end of said measuring rod 10 is put in contact with the front of a pressure member 8 fixed to the traveling table 3, and thus location of the inner side face of said ring 22 is determined. In this condition a handle 4 is rotated, and the traveling table 3 is shifted toward a grinder element 2 for a distance set previously with a stopper bolt 1b, and then one end of the illuminator tube 21 is put in contact with this grinder element 2, and now grinding is carried out a certain specified amount. Then the direction of the illuminator tube 21 is changed to grind the other end in the same procedure, which provides manufacture of illuminator tubes 21 with uniform distance between rings 22 at the ends.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a polishing device for polishing both ends of a ceramic sodium lighting tube to a predetermined size.

(Conventional technology) As shown in FIG. 3, the sodium illumination tube 21.

Made of ceramic, with rings 2 also made of ceramic at both ends.
2.22 is fitted, fired at the same time as the illumination tube 21, and fixed integrally therewith. Illustrated sodium lighting tube 2
1 is after polishing both ends and adjusting the dimensions,
The dimensions of the unpolished one are irregular, for example, as shown by the imaginary line in FIG.
The ends of 1 protrude irregularly.

Conventionally, when polishing a semi-finished product with irregular dimensions as described above, the polishing process was carried out by hand, using a polishing device and measuring the dimensions with a gauge.

(Problems to be Solved by the Invention) The problem with the conventional polishing apparatus described above is that the polishing work must be done manually while measuring the dimensions with a gauge, and the workability is extremely poor. was there.

The present invention is an attempt to solve the above-mentioned conventional problems, and it is possible to automatically polish to a predetermined size by simply placing it on the moving table of the device and moving it, without having to measure the dimensions one by one. The aim is to provide a polishing device that can.

(Means for solving the problems) In the present invention, in order to solve the above conventional problems,
A guide body having an abutting surface perpendicular to the whetstone surface is fixed on a movable table that can move forward and backward a predetermined distance facing the whetstone surface, and a pressing body having a pressing surface parallel to the whetstone surface is fixed, With the side surface of the lighting tube in contact with the guide, a measuring rod of a predetermined length is inserted into the lighting tube, and one end of the measuring rod is brought into contact with the inner surface of the ring inside one end of the lighting tube. , the other end was brought into contact with the pressing body, and the movable table was moved a predetermined distance to perform polishing of a predetermined dimension.

(Function) With the measuring rod inserted into the illumination tube, place it along the side surface of the guide body, one end of the measuring rod is brought into contact with the inner surface of the ring at one end of the illumination tube, and the other end is brought into contact with the pressing body.

The measuring rod also passes through the ring at the other end of the lighting tube, so it is slightly inclined, but one end touches the inner surface of the ring at one end of the lighting tube, and the side surface on the way up touches the inner surface of the ring at one end of the lighting tube. The position of the inner surface of the ring on the one end on the movable table is determined by contacting the inner peripheral edge of the ring on the other end and the other end contacting the pressing body.

Therefore, by moving the movable table a predetermined distance toward the grindstone, it is possible to polish the area from the inner surface of the ring to the end of the illumination tube to the same size. Since the distance between the inner surfaces of the ring, which is still a lighting tube, is manufactured to be constant, by polishing both ends of the lighting tube in the same manner, the total length can always be the same.

(Example) The drawings show an example of the implementation of the present invention, and FIG. 1 is a plan view of a polishing device, FIG. 2 is a side view of the polishing device, and FIG. 3 is a sectional view of a lighting tube. be.

In the figure, reference numeral 1 denotes a pedestal, which is fixed to the side of the grindstone 2.

The movable table 3 is slidably assembled on the base 1, and by rotating the shaft 5 in forward and reverse directions via a handle 4 provided on the side of the base 1, the movable base 3 can be moved against the polishing surface of the grindstone 2. It can move forward and backward at right angles. The limit of movement of the movable table 3 toward the grindstone 2 side is determined by a stopper bolt 1b provided at the front of the base 1. The stopper bolt 1b is screwed into an abbreviated stay 1a protruding from the front part of the pedestal 1.
By adjusting the screw-in length, the moving distance of the moving base 3 can be changed and set appropriately.

The guide body 6 is fixed on the movable table 3 so that its inner surface is perpendicular to the polishing surface of the grindstone 2. In the illustrated embodiment, the guide body 6 is attached to the movable base 3 by screwing fixing screws 7 into screw holes 3a provided in a plurality of rows on the movable base 3 in a direction perpendicular to the polishing surface of the grindstone 2. It is fixed in the appropriate position on the top.

The pressing body 8 is fixed on the movable table 3 so that its front surface is parallel to the polishing surface of the grindstone 2. In the illustrated embodiment, fixing screws 9, 9 are inserted into the first screw hole 3a and the other screw hole 3b, which are arranged in multiple rows in a direction perpendicular to the polishing surface of the grindstone 2.
By screwing them together, it is fixed at an appropriate position kt on the movable table 3.

In this embodiment, the measuring rod 10 is a metal rod having a constant length corresponding to the length of the illumination tube 21.

Both ends are coated with acrylic resin to prevent wear.

Next, the operation of this embodiment will be explained.

When polishing both ends of a lighting tube using this polishing device, insert the measuring rod 10 into the lighting tube 21, and touch one end of it to the inner surface of the ring 22 at one end of the lighting tube 21. let The abutted end of the measuring rod 10 is coated with resin, so the overlapping ceramic ring 2
It is protected without being abraded even by contact with 2.

In this way, when the illumination tube 21 into which the measuring rod 10 is inserted is placed along the side surface of the guide body 6 and the other end of the measuring rod 10 is brought into contact with the front surface of the pressing body 8, the measuring rod 10 allows one The position of the inner surface of the ring 22 is determined 6. Then, in this state, when the handle 4 is rotated and the movable table 3 is moved toward the grinding wheel 2 by a distance set in advance by the stop bolt 1b, one end of the illumination tube 21 is It comes into contact with the grindstone 2 and is polished by a predetermined amount. Change the direction of the illumination tube 21 and polish the other end using the same procedure. As a result of this polishing, the dimensions from the inner surfaces of the rings 22.22 on both sides to both ends of the illumination tube 21 are determined to be constant, respectively, and the distance 1 between both rings 22.22 is determined in advance. The total length is determined.

(Effects of the Invention) As described above, in the present invention, a measuring rod of a predetermined length is inserted into the lighting tube, one end of the measuring rod is brought into contact with the inner surface of one ring, and the other end is moved. Since both ends of the lighting tube were polished by bringing it into contact with the pressing body on the table and by aligning the side of the lighting tube with the guide body and moving the moving table a predetermined distance, the dimensions were measured each time with a gauge. Polishing of a predetermined size can be automatically and accurately performed simply by moving the movable table without having to perform the polishing process, thereby simplifying the polishing work and making it extremely efficient.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a plan view of the polishing apparatus, FIG. 2 is a side view thereof, and FIG. 3 is a sectional view of the illumination tube. 2... Grindstone 3... Moving table 6...
Guide body 8... Pressing body 10... Measuring rod 21... Lighting tube 22... Ring

Claims (1)

[Claims] A polishing device for a lighting tube also made of ceramic, comprising a ceramic ring fixed to the inside near both ends,
A guide body with a contact surface perpendicular to the whetstone surface is fixed on a movable table that can move forward and backward a predetermined distance facing the whetstone surface, and a pressing body with a pressing surface parallel to the whetstone surface is fixed. death,
With the side surface of the lighting tube in contact with the guide, a measuring rod of a predetermined length is inserted into the lighting tube, and one end of the measuring rod is brought into contact with the inner surface of the ring inside one end of the lighting tube. , a polishing device for a sodium lighting tube, the other end of which is brought into contact with the pressing body.