JPS58196961A - Processing device for curved surface of tension test piece - Google Patents

Abstract

PURPOSE:To effectively process the central part of a test piece into various kinds of shape of curved surface by elevatably and horizontally rockably providing a diamond wheel for grinding the tension test piece. CONSTITUTION:Each of tension test pieces (a) made of various kinds of material is mounted on an elevatable table by means of a vice 4, and the central part of said test piece is processed into various shapes of curved surface. A diamond wheel 10 driven by a motor 21 is made elevatable by turning a handle 13, and further can be horizontally rocked taking a rocking shaft 15 as a center by turning a handle 19. It is possible by use of such a device to effectively process the central part of the test piece (a) into a shape of curved surface with various radii of curvature.

Description

[Detailed description of the invention] The present invention, fine ceramics, charcoal #C fiber-reinforced plastics cape, new material's fall 4C point, yield strength, Jj1 tensile strength, elongation, reduction of area 9 etc. υ mechanical property 3 Itt test In order to make the WT surface at the center v of the test piece smaller in cross-section at both ends, a curved surface is processed symmetrically in the central region. 4) Regarding the machining equipment for 4) testing of semi-dimensional dimensions, t) and 2).

Recently, fine ceramics, compared to conventional metal materials,
Carbon fiber-reinforced plastics have emerged as a major player in the technology revolution, and in forming the tensile test chambers used to test the mechanical properties of these new materials,
% (Ml! 11) In order to obtain accurate experimental data t-rcIII] tk wrinkle processing technology is used. When forming in a fire area, a diamond wheel is used for each curved surface to be machined, so it is necessary to prepare several meters of expensive diamond wheels. It is troublesome to replace the wheel, and even after replacing it, the diameter of the diamond wheel is different, and the relationship between the test piece and the test piece is time consuming and difficult, and it is not possible to process a single curved surface efficiently. .

In view of the above-mentioned circumstances, the present invention was devised to completely eliminate the problems of the conventional buttons. The bearing part is constructed so that it can be adjusted up and down as well as up and down, and can also be freely swung in the left and right directions with respect to the machined surface of one test piece II4.
As a result, we have expanded the range of curved surface machining through the synergistic effect of vertical adjustment of the diamond wheel relative to the test piece and rocking movement in the left and right directions, making it possible to simply use one die and one diamond wheel. I! It is an object of the present invention to provide a curved surface machining device for tensile test pieces that can accurately and efficiently process various curved surfaces when used.

To explain the embodiment ψU of 11a of the present invention shown in the drawings, 1 is a fine cell formed into a plate or rod shape.
This is a test piece processing device for fixing a tensile test piece a made of a new material such as fiber-reinforced plastics in a horizontal position, and the test piece supporting device 1 [1 is on the base 2] It is equipped on the next W11i3 and placed on one side of the W! jL I'm vomiting. That is, 4 is a vise with a handle 41 for fixing the test piece affi, and the vise 4 is attached to the upper We base 2.
It is mounted on a frame 5 that is horizontally installed above, and is used to rotate a handle 6 that has a wire rod 6 that is screwed into a shaft bearing 5 protruding from the bottom of the frame 5. The frame 5 is constructed so that it can be moved in any direction.
c It moves up and down in the vertical direction by rotating the handle 8, which has a bevel carrier 8 that is attached to the screw 1 and meshes with the round bevel gear 1a! It is composed in the 11th verse.

9 is located above the support device F11 for the above test, and is fixed in a vise 4 and is rotatably mounted on a diamond wheel 10 that processes the central area of the test piece island into a curved surface shape. Use the device, v! Test C The processing device r9 is a diamond wheel 10 top-to-bottom forward adjustment M & mechanism 9.
A, a left-right swing mechanism 9B, and a body movement mechanism 9c that applies one force ti to the diamond wheel 10 in the order of rotation 71.

In other words, the shaft bearing part 11 of the diamond wheel 1o has a dovetail recess 11a in the vertical direction.
It consists of a plate-shaped outer shaft bearing 111 and a plate-shaped FF3111 shaft bearing 11t with a dovetail-shaped convex portion 11b attached to the plate-shaped outer shaft bearing 111, and the lower part of the shaft bearing 11. A rotating shaft 12 on which a diamond wheel 10 is mounted is mounted from the outside inside the machine ik3, and a screw punch 14 having a handle 13 is mounted on the top of the outer shaft bearing 11'. By screwing together and rotating the handle 13, the outer shaft bearing 11'' moves up and down with respect to the inner shaft bearing 11', and this also adjusts the relative position between the diamond wheel 10 and the test specimen a. As a result, the vertical raising/lowering adjustment mechanism 9 of the diamond wheel 10 is constricted. Note that the inner end of the shaft bearing 11 and the outer end of the shaft bearing 11'' are A notch (not shown) is formed to accommodate the vertical movement of the bearing body 11'.

15 is the inner shaft bearing 11' of the shaft bearing part 11, and is engaged with the worm 18 of the worm shaft 11 whose center is perpendicular to the pivot 15. 1 means the above bearing I! 11
The diamond wheel 10 begins to swing in the left and right direction about the pivot 15 as a fulcrum.
A left-right swing mechanism 9B is constructed.

20 is a shaft 5 which is mounted on the rear end of the rotating shaft 12 of the diamond wheel 10, which has a penetrating shaft inside the shaft 5! lzat again 1
With the FR speed change boot, the self-speed change pulley 23 has a shaft layer on the membrane speed change pulley 20 and the output shaft 22 of the motor 21.
An endless transmission band 24 is suspended between the two. 25.2
5 tensions the endless power transmission band 24 from the inside to the outside (in order to tighten the tension pulley 1), which is arranged in a left-right opposed manner inside the rotation locus of the endless power transmission band 24; 25.25 is a trap that rolls on a horizontally installed guide rail 26021゜21
1, the tension pulleys 25 and 25 are provided with support pulleys disposed on the outer sides of the tension pulleys 25 and 25, respectively, and support pulleys 27 and I are arranged on the outer sides of the tension pulleys 25 and 25, respectively.
27 has one end connected to the inner side of the tension pulley 25.25 via a pin 28.28, and a weight 29 at the other end.
．． A wire 30.3G connecting diamond wheels 1 to 211 is suspended.
The transmission mechanism 9C of #0 is configured as #I.

Next, the operation of the present invention constructed as described above will be explained. Now, when testing the mechanical properties of 0flrIP4 materials such as fine ceramics and carbon fiber reinforced plastics, we first test the
Place the bar-shaped test piece a horizontally on a vise 4.
, rotate the fixing handle Jat of the vise 4 to fix the test piece a. 2. Next, the outer circumferential surface of the outer shaft bearing diamond wheel 10 is brought into contact with the upper surface of the test specimen a in parallel to the length of the shaft bearing part 11 of the diamond wheel 10, but the outer shaft bearing 11' When adjusting the elevation of the diamond wheel, the 100-rotation axis of the diamond wheel also ascends and descends.
Since the end band 24 is always tensioned outward by the tension pulley 25.25 rolling on the east gate rail 26 and the weight/weight 29, the outer shaft bearing 11'
There is a constant tension tk, regardless of the rise, fall, expansion and contraction of
It will be done. Therefore, the relationship between the diamond wheel 10 and the test piece 7a is rk hill C! If the diamond wheel 10 is rotated by starting the motor 21 IJ, I, a curved surface with a curvature G of the die 17 and the boiler 100 will be machined in the longitudinal direction of the upper surface of the test n1 (
(See Figures 4A and B).

By the way, the curved surface processing of the above test piece a improves the material's resistance to yielding, dipping, and blistering! In this case, by rotating the handle 19 of the worm shaft 17, the worm 1B of the worm shaft 17
Since the worm gear 16 which is fitted with K1m rotates with the rotation of the worm shaft 11, the bearing part 11 of the diamond wheel 10 swings in the left-right direction as a pivot 15-gold fulcrum, and the diamond wheel 100 curved surface machining range is can be expanded. Therefore, by using only one diamond wheel 10, curved surfaces paired for various tests can be processed into the test piece a. Manually operate the left and right rocking of the
- h is shown, but the present invention is not limited to this, and it may be automatically oscillated left and right by a motor and a limit switch.

In order to solve this problem, the present invention provides a test piece support device that horizontally fixes a tensile test piece formed in a plate-like rod shape on a platform, and is capable of vertically adjusting the test piece supporting device. ! Equipment
A test machining device (mt) in which a diamond wheel for machining the specimen tab shape is rotatably mounted on the shaft is installed above the test specimen machining device. Since it is configured to be freely adjustable and to automatically swing in the left and right directions, a synergistic effect can be achieved between the downward adjustment of the diamond ball in the vertical direction and the interlocking movement in the left and right directions of the diamond ball against the test piece. By using only one diamond wheel per 5L, it is possible to process various curved surfaces more efficiently than tensile test θ drilling. Since it is not necessary to prepare a diamond wheel, it is not necessary to prepare a diamond wheel, so it is not only economical because it reduces the investment and investment required for curved surface processing. can be easily adjusted, and has an extremely useful new effect that allows accurate curved surface machining to be carried out efficiently1.

[Brief explanation of the drawing]

The drawing shows an apparatus for processing curved surfaces of tensile test pieces according to the present invention.
Figure 1 is a front view showing the internal mechanism, Figure 3 is a right side view of the same as above, Figure 3 is a plan view of the same as above, and Figures 4A and B show an example of a tensile test piece. They are a top view and a side view. In the figure, 1...test piece support device 3...machine casing. 4...Vise 1 9...Diamond wheel 11 for test piece processing device 10...Bearing portion 11'...Outer shaft bearing 11# ...Inner shaft bearing 12 ...Diamond wheel rotation shaft 15.
...Owing axis of the bearing section 16 ... Worm gear 11 ... Worm shaft 1a ... Worm 24 ... Endless transmission band 25 ... ... Tension pulley 29 ... Weight % Mr. Toshihito Koga Toshi Hei 3 agents Patenteeto

Claims (1)

[Claims] The plate-shaped t7t is equipped with a test piece support device that horizontally places and fixes a rod-shaped tensile test piece, and is adjustable up and down in the vertical direction, and above the scissors test piece support device is a diamond plate that processes the test piece into a curved surface. A test piece processing device vIi in which a wheel is rotatably mounted on a shaft is provided, and the shaft bearing portion of the diamond wheel equipped with the test piece processing device kK is configured to be adjustable up and down in the vertical direction, and swingable in the left and right directions. A device for processing curved surfaces of tensile test specimens that achieves a perfect result. ,