JPH047887Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an end face polishing device for specimens sampled from concrete and other solid building materials.

<Conventional technology> Conventional end face polishing equipment for specimens was developed in 1980.
No. 165841 and Utility Model No. 165842 were issued.

<Problems to be Solved by the Invention> However, the above-mentioned conventional example has drawbacks such as a complex structure despite its simple handling and difficulty in miniaturization.

The present invention provides a polishing machine that improves the above drawbacks.

<Means for solving the problem> A polishing plate support frame having a rotating shaft with a polishing plate rotated by an electric motor attached to the lower end on a column erected on the upper surface of the lower machine frame can be freely swung horizontally. The polishing surface is mounted on the upper surface of the lower machine frame at a position opposite to the polishing plate on the lower surface of the support frame to hold the specimen immovably, and the polishing plate is rotated according to the amount of polishing of the specimen. A feeding mechanism for moving the polishing surface is provided in the lower machine frame, and polishing is performed while pouring water onto the polishing surface.

<Function> The specimen is mounted immovably at a predetermined position on the upper surface of the lower machine frame, and while pouring water onto the polishing surface formed by the polishing plate and the specimen, the electric motor provided on the polishing plate support frame is driven to remove the polishing plate. While rotating the support frame, the support frame is manually repeatedly oscillated in the horizontal direction, and the polishing plate is fed to polish the end surface of the specimen.

<Embodiment> Hereinafter, the present invention will be described in detail with reference to an embodiment shown in the drawings.A polishing plate support frame 13 is horizontally pivotably supported on the upper part of a column 18 erected on the upper surface of the lower machine frame 1. , and a rotary shaft 14 which can be moved up and down by operating a handle 5 on an operation panel 4 provided on the front surface of the lower machine frame 1, and has a polishing plate 12 fixed at its lower end at a position offset from the support frame 13. is rotatably supported by a vertical bearing 15, and the rotating shaft 14 and the output shaft of an electric motor 16 installed in the polishing plate support frame 13 are connected by a belt 17, and the polishing plate 12 is rotated by the electric motor 16. At the same time, the polishing plate support frame 13 is swung by a swing handle 19 protruding from the front surface of the support frame 13.

and a space where the lower surface of the polishing plate support frame 13 faces the upper surface plate 7 of the lower machine frame 1 is used as a polishing processing section;
The specimen 10 is gripped by the clamp 11, and its surroundings are covered by two-split covers 8, 8 which can be opened and closed to prevent splashes generated during polishing work.

Further, at the same time, piping is connected between the contact grinding part of the specimen 10 and the polishing plate 12 and the tank 3 installed in the lower machine frame 1 via the pump 2.
A water collecting pipe 21 connects a water receiving tray 22 placed oppositely to the lower side of the tank 3 to the tank 3. In addition, the reference numeral 9 in the drawings indicates the specimen 10 and the polishing plate 12.
This is a height adjustment plate for adjusting in advance the distance between the two.

Next, to describe a series of operations of the above configuration, first, a predetermined amount of water is poured into the tank 3,
Next, the mating portions of the covers 8, 8 are released, a specimen such as concrete or rock is immovably held in an upright position at a predetermined position in the center by the clamp 11, and the covers 8, 8 are closed again.

Then, by pressing the start switch 6 on the operation panel 4 while fully grasping the swing handle 19 (for stability), the electric motor 16 is driven and the rotating shaft 14 is driven through the belt 17. Rotate at a constant speed.
In this state, there is no contact between the polishing plate 12 and the specimen 10, so to start polishing, rotate the handle 5 on the operation panel 4 to direct the polishing plate 12 toward the surface of the specimen 10. By gradually lowering and approaching each other, the two eventually come into contact and become polished.

Therefore, by operating the handle 5 to feed the polishing plate 12 and swinging the handle 19 on a horizontal plane about the support 18, the end face of the specimen 10 is polished smoothly.
As a result of this operation, water is always injected from the tank 5 through the water pipe 20, and while preventing the scattering of the abrasive powder, the water received in the saucer 22 is returned to the water collection pipe 21.
It operates so that it returns to the tank 3 through the process.

<Effects of the Invention> The present invention is constructed as described above, and the specimen is mounted and held in an upright state, so the construction is simple and the installation area can be minimized.

Furthermore, since the swinging motion of the polishing plate is a movement on a horizontal plane, it has the effect of reducing arm fatigue.

[Brief explanation of the drawing]

FIG. 1 is a front view of the polishing apparatus of the present invention, and FIG. 2 is a right side view of the same. 1... lower machine frame, 8... cover, 10... specimen, 11... clamp, 12... polishing plate, 13...
... Polishing plate support frame, 14 ... Rotating shaft, 16 ... Electric motor, 18 ... Support column, 19 ... Handle.

Claims (1)

[Scope of utility model registration request] A polishing machine has a support 18 erected on the upper surface of the lower machine frame 1 housing the pump 2 and tank 3, and has a polishing plate 12 which is driven by an electric motor 16 installed inside the support and is movable up and down. A plate support frame 13 is swingably supported, and a clamp 11 is provided between the upper surface of the lower machine frame 1 and the lower surface of the polishing plate support frame 13 to hold a specimen facing the polishing plate 12. Two split covers 8, 8 that can be opened and closed to cover the surrounding area are provided, and a water pipe 20 that communicates with the pump 2 is installed between the tank 3 and the position in contact with the polishing plate 12 of the specimen. An end face polishing device for a specimen, comprising a water collecting pipe 21 disposed between a water receiving tray 22 and a tank 3.