JPH01183313A - Sample cutter - Google Patents

Abstract

PURPOSE:To cut circular samples at respective centers at a time by pushing a sample holder holding the circular samples between each opposed V-shaped groove of partition faces lengthwise situated along a center line into a guide fixture on a base, and traveling a cutting wheel along the center line. CONSTITUTION:A sample holder 1 holding clad contacts (samples) 31 between respective opposed V-shaped grooves 2 of partition faces 3 located at a center line is pushed in a guide fixture 9, the partition faces are evenly brought close to each other along tapered faces 10 from both the right and left sides, and then the contacts 31 are aligned. And the rear end of the sample holder 1 is inserted into a hole drilled in a guide base 8, locked in position by a positioning pin 13, and a joint pin 14 is inserted into the guide fixture 9 side, thereby the guide fixture 9 is locked in position and integrally formed with the sample holder 1. Further, after a sample holding device 6 is installed on a fixed bed 18, the contacts 31 on the sample holder 1 are cut in their centers at a time by driving an air motor while traveling a cutting unit 16 along a threaded shaft 20.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is a method for cutting samples in which the central part is cut in order to measure the internal shape, tension, etc. of circular samples such as contacts with various cross-sectional shapes and caulking parts. Regarding machines.

(Prior art and its problems) Conventionally, in order to cut the center part of a circular sample height of contacts of various cross-sectional shapes, caulking parts, etc., it was necessary to file it or cut it with a sample cutting machine.

By the way, since the method of shaving with a file is done by hand, the center part cannot be cut accurately because the part may be slanted or bent. In addition, the method of cutting a sample is to set a circular sample on a jig, attach this jig to a cutting machine, and rotate a disc-shaped cutting whetstone to cut it. It is difficult to expose the center of the sample, and it is difficult to accurately cut the center of a circular sample. Moreover, it takes too long to bring out the center. Furthermore, many circular specimens cannot be cut at -degrees.

(Object of the Invention) The present invention has been made to solve the above-mentioned problems, and it is easy to center a circular sample, cut the center of the circular sample, and cut many circular samples at -degrees. Furthermore, it is an object of the present invention to provide a sample cutting machine that can cut even circular samples having diameters that differ to some extent.

(Means for Solving the Problems) The sample cutting machine of the present invention to solve the above problems is divided into left and right halves at the center in the longitudinal direction, and V grooves are formed at regular intervals at opposing positions on the divided surfaces. Sliding on a plurality of sample holders provided with a symmetrical taper of 20 to 60 degrees on both left and right outer surfaces and a substrate with a taper of 20 to 60 degrees on the inner surface into which the sample holders are pushed. A sample holding device consisting of a flexible guide tool and a locking tool on a substrate that fixes the sample holder pushed into the guide tool is attached to a fixing base in the running direction of the cutting wheel of the cutting unit of the cutting machine main body. and the cutting surface grindstone of the cutting unit is driven by a motor.

(Function) The sample cutting machine of the present invention configured as described above sandwiches a circular sample between the opposing V grooves of the dividing surface at the center of the sample holder, and connects the sample holder holding the circular sample between the substrates. By pushing the sample holder into the upper guide tool, the sample holder is tightened evenly from both the left and right outer sides, and the opposing dividing surfaces approach each other.
The center of the circular sample between the grooves will be located on the center line between the opposing dividing surfaces. Therefore, in this state, by fixing the sample holder with a locking tool and driving the cutting surface grindstone along the center line between the divided surfaces of the sample holder and driving it with a motor, a circular shape between each V-groove can be obtained. The sample is cut centrally all at once. In addition, not only can circular samples of a constant diameter be held between the V grooves of the sample holder, but also circular samples with slightly different diameters can be held and centered, so one type of sample holder can hold several types of circular samples. can be cut at the center of each.

(Embodiment) An embodiment of the sample cutting machine of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an example of a sample holder 1 that holds a circular sample. Five V-grooves 2 are provided at intervals of 10 seconds. Only the rear portion of both left and right outer surfaces of the sample holder 1 is parallel to the dividing surface 3, and the portion beyond that is symmetrically tapered at 20 to 60 degrees, and in this example is a 30 degree tapered surface 5.

A sample holder 1 having such a structure is pushed into a guide 9 consisting of a pair of left and right blocks 9a slidably provided on a guide plate 8 on a substrate 7 of a sample holder 6 shown in FIG. A tapered surface 10 of 20 to 60 degrees, 30 degrees in this example, is formed inside the left and right sides of the guide tool 9. Both left and right outer surfaces of the guide tool 9 are restrained by a guide frame 11 provided on the base plate 7. In the figure, 12 is a stopper of the guide tool 9, 13 is a positioning pin that is inserted into a hole drilled in the guide plate 8 to prevent the sample holder l from being removed from the guide tool 9;
14 is a joint pin that integrates the sample holder l and the guide tool 9.

In this way, the sample holder 6 equipped with the sample holder 1 has a third
As shown in the figure, the cutting unit 16 of the cutting machine body 15
The cutting grindstone 17 is placed on a fixed table 18 in the traveling direction thereof. The cutting unit 16 has a pair of support frames 19
It is mounted on a screw shaft 20 rotatably supported in between, and can be moved by rotating a handle 21 at one end of the screw shaft 20. The motor of the cutting unit 6 that drives the cutting grindstone 17 is composed of an air motor 22. In the figure, 23 is a cover.

Next, cutting of a sample using the sample cutting machine configured as described above will be explained. A circular sample is placed between the opposing V grooves 2 of the dividing surface 3 at the center of the sample holder l shown in FIG. .0oua, leg length 2.0-, contact material 3 on top of head
When the sample holder l holding the rivet type clad contact 31 with a thickness of 0.5 mm is pushed into the guide 9 consisting of a pair of left and right blocks 9a shown in FIG. The sample holder 1 is gradually narrowed evenly from the left and right outer sides along the tapered surfaces lO on the left and right inner surfaces of the guide tool 9, and the opposing dividing surfaces approach and eventually stop, so that the rivets between each V-groove 2 Type clad contact 3
The center of 1 is located on the center line l between the opposing dividing surfaces 3,
Centering of the rivet type clad contact 31 is easily performed. In this state, the sample holder 1 is fixed with a locking tool, that is, the rear end of the sample holder 1 that has been pushed into the guide 9 and stopped is inserted into a hole drilled in the guide board 8 and attached to the positioning pin 13. A joint pin 14 is inserted on the guide tool 9 side between the contact surface of the sample holder 1 and the guide tool 9 to prevent the guide tool 9 from being pulled out and to integrate it with the sample holder 1. .

Then, the cutting surface grindstone 17 shown in FIG. 3 is run along the center line 1 between the divided surfaces 3 of the sample holder
1 to move the cutting unit 16 on the screw shaft 20 and drive the air motor 22 of the cutting unit 16 to center all the rivet-type clad contacts 31 between each V-groove 2 of the sample holder 1 at once. Cut at the section. At this time, no residue of the cutting whetstone 17 remained on the cut surface of the rivet type clad contact 31.

The rivet-type clad contacts 31 of the above embodiments all have feet with a diameter of 2.0+ms, but since the V-groove 3 of the sample holder 1 has an opening angle of 120 degrees, the head diameter is somewhat large. Even if the rivet type clad contact 31 is large or small, it can be centered by pinching the rivet type clad contact 31, so several types of rivet type clad contacts 31 can be cut at the center using one type of sample holder.

In addition, in the sample cutting machine of the present invention, for example, the depth of the groove 3 is set to 1.
．． If you prepare three types of sample holders 1: 6M, 2.6 mm, and 3.2M, the head diameter will be 1.8 mm to 7.5 mm.
It is possible to always cut the rivet type clad contact 31 in the range up to the center.

In the above example, the circular sample to be cut is a rivet-type clad contact, but it is not limited to this, and can be of course contact with various cross-sectional shapes such as a button-type clad contact, a stepped clad contact, or even a caulked part. It's good. Of course, in that case, the longitudinal cross-sectional shape of the V-groove 2 of the sample holder 1 may be changed as appropriate.

(Effects of the Invention) As can be seen from the above explanation, according to the sample cutting machine of the present invention,
It is easy to center a circular sample, the center of the circular sample can be cut accurately, and no residue of the cutting whetstone remains on the cut surface. Therefore, the internal cross-sectional shape of a circular sample, the tensile thickness in the case of clad material, etc. can be accurately measured. Furthermore, it is highly efficient because many circular samples can be cut at -degrees, and furthermore, circular samples with different diameters to some extent can be cut using the same sample holder, making it highly versatile.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of a sample holder in a sample cutting machine of the present invention, Fig. 2 is a perspective view showing a sample holder equipped with the sample holder, and Fig. 3 is a perspective view of the sample holder. 1 is a schematic side view showing a main body of a sample cutting machine of the present invention, which is equipped with a sample cutting machine according to the present invention. l...sample holder, 2...dividing surface, 3...V groove,
5... Taber surface, 6... Sample holding device, 7... Substrate, 8... Guide plate, 9... Guide tool, 10... Taber surface, 13... Positioning pin, 14 ... Joint pin, 15 ... Cutting machine body, 16 ... Cutting unit, 1
7... Cutting grindstone, 22... Air motor 31...
・Rivet type clad contact (circular sample) Applicant Tanaka Kikinzoku Kogyo Co., Ltd.

Claims (1)

[Claims] A sample holder that is divided into left and right halves at the center in the longitudinal direction, has a plurality of V grooves at regular intervals on opposite sides of the divided surfaces, and has a symmetrical taper of 20 to 60 degrees on both left and right outer surfaces. A slidable guide on the substrate whose inner surface is tapered by 20 to 60 degrees into which the sample holder is pushed, and a locking device on the substrate that fixes the sample holder pushed into the guide. A sample holding device comprising: is installed on a fixed stand in the running direction of a cutting wheel of a cutting unit of a cutting machine main body, and the cutting surface grindstone of the cutting unit is driven by a motor. Machine.