JPH037801Y2 - - Google Patents

Description

[Detailed explanation of the invention] (1) Purpose of the invention (field of industrial application) The invention is used in the field of preparing samples for measuring the shear adhesion of sandwich-type resin-laminated metal plates and clad steel plates. This relates to a jig for.

(Prior Art) As one of the strength tests for sandwich-type resin-laminated metal plates and clad steel plates, shear adhesion strength is measured. In this case, it is best to cut out a part of the product, such as the above-mentioned sandwich-type resin-laminated metal plate, and use it as a test piece and actually measure it.
It's practical. Therefore, conventionally, the above-mentioned test pieces have been prepared and measured by the method shown in FIG. 3. In other words, as shown in Figure 1, after cutting the product to a specified width A in accordance with the test standards, the upper and lower metal plates are separated from the resin adhesive layer leaving a predetermined distance B, or as shown in Figure 2, the product is cut to a specified width A, or the upper and lower metal plates are separated from the resin adhesive layer by leaving a predetermined distance B. At the holding position, cut grooves are cut through the resin adhesive layer in the upper and lower metal plates to set a prescribed shearing area A x B, and then tensile force is applied to the upper and lower metal plates in the direction of the arrow to increase the shear adhesion force. I've been taking measurements.

However, in the former method, it is not possible to accurately determine the area A x B of the bonded part, and it is difficult to prepare a large number of test pieces with the same accuracy. Although it is possible to set the above area A x B accurately, it is difficult to cut only one metal plate (and resin adhesive layer) without cutting into the other metal plate, especially when the metal plate is thin. Or, it is even more difficult if there is some warpage.

(Problems to be solved by the invention) The present invention solves the above-mentioned conventional problems, and is designed to produce a test piece for measuring shear adhesion force that has a simple structure, is easy to operate, and can be accurately cut. Provide jigs.

(2) Structure of the invention (Means for solving the problems) In order to solve the above problems, the present invention has an XY plane, and the XY plane can be adjusted in angle at least around the X axis. A support stand supported on a base; an arm disposed on the support stand so as to be able to slide in the Y direction; a first gauge that moves the arm by an arbitrary predetermined distance in the Y direction; and a Y direction of the arm. A test piece holder is fixed to the front end and holds the plate-shaped test piece in the XZ plane at a position protruding from the base. It has a stopper for regulating the piece in the Z direction, and the stopper has a notch with a width corresponding to at least the thickness of the notch blade for receiving the notch blade at a predetermined position in the X direction, The base is provided with a second gauge that contacts the side edge of the test piece and positions it in the X direction.

When the test piece is a steel plate, the test piece holder preferably has a magnet embedded in its front surface so that the test piece can be easily held in close contact with the front surface of the steel plate. For test pieces of non-magnetic material, means are required to clamp the test piece at appropriate locations.

In addition, the notch in the stopper of the test piece holder is inserted into the Z while applying a cutting blade such as a band saw to the surface of the test piece held in the test piece holder
This is to prevent the stopper from becoming an obstacle when making a cut groove in the metal plate on one side of the test piece by running it in the direction of the test piece.Therefore, it is sufficient that the width of the cutout is at least the thickness of the blade mentioned above. And there's no limit to that.

Furthermore, in order to accurately set the specified distance when cutting grooves in both metal plates by turning the test piece upside down and keeping a specified distance, a second step is used to abut one edge of the test piece and position it in the X direction. Two gauges are installed on the base, which further improves the accuracy of the kerf position and the processing efficiency. Here, the first gauge is for feeding in the thickness direction of the metal plate, so it needs to be able to accurately make minute feeds, whereas the second gauge is for determining the above-mentioned specified distance. A gauge with suitable accuracy is sufficient.

(Function) Based on the jig of the present invention having the above-mentioned structure, a description will be given below of how to prepare a test piece for measuring the shear adhesion force from a Sanderch-type resin-laminated metal plate or the like.

First, a test piece is prepared by cutting the product, a laminated metal plate, into a rectangular shape with a specified width.

Next, one side of the test piece is brought into close contact with a test piece holder using a magnet or the like, with the specified width being in the Z direction. At this time, one edge of the test piece extending in the X direction is brought into contact with a stopper and serves as a reference side for processing.

Thereafter, the arm is sent forward in the Y direction using the first gauge, and positioned so that the test piece lightly contacts the blade of a non-operating band saw or the like. At this time, it is sufficient that the blade and the test piece are in line contact, but if the test piece is tilted around the X-axis and only touches at its upper or lower edge, move the support stand around the The angle is adjusted so that the blade is in line contact over the entire width of the test piece, that is, the blades are parallel to each other. The scale of the first gauge at this time becomes the zero position of the arm feed.

After this condition is set, start operating the band saw blade, and use the first gauge to advance the arm little by little until the set depth (thickness of one metal plate) is reached.
Make a notch in the test piece. After that, the test piece is moved back a certain distance by the first gauge, the blade operation is stopped, the front and back sides of the test piece are turned over, and the test piece is placed in the test piece holder so that the cut groove and the specified distance are at the position of the blade. Then, the next (second) kerf is made again in the same manner as described above to obtain a test piece with two predetermined kerfs. At this time, if the reference side of the test piece described above is brought into contact with the stopper, the two grooves will be completely parallel.

When making the second cut groove, if a second gauge is prepared, move the second gauge in the X direction and set it at a predetermined position. However, if it is moved sufficiently and its side comes into contact with the stopper, the position of the second kerf will be automatically set.

(Example) An example of the present invention will be described below based on FIGS. 1 and 2.

Reference numeral 1 denotes the base of this embodiment, which is formed into a flat plate shape and has a mounting hole 11 for mounting on the work surface S of the band saw.
are drilled at each corner.

In order to clarify each direction, the explanation will proceed by setting orthogonal coordinates XYZ with the direction of the vertically extending band saw blade P as the Z axis and the direction of the blade surface as the Y axis. Therefore, the working surface S of the band saw is on the XY plane.

A support stand 2 is placed on the base 1. The support stand 2 has shafts 22 extending in the X direction on both sides,
It is rotatably supported by a bearing 12 attached to the base 1. Adjustment screws 21 whose tips come into contact with the upper surface of the base 1 are attached to the four corners of the support base 2, and the support base 2 is connected to the shaft 22.
The angle of inclination can be adjusted around it.

At both ends of the support base 2 in the Y direction, stands 24a and 24b, each having both ends of a shaft 23 fixed thereto, stand vertically. A guide 24c extending in the Y direction is provided at a lateral position between the stands 24a and 24b.

An arm 3 parallel to the shaft 23 is disposed above the shaft 23, and the arm has flanges 31a and 31b extending downward at both ends thereof, and the above-mentioned It is slidably guided on a shaft 23. Further, the side part of the arm is slidably attached to the guide 2 in the Y direction.
4c, and when sliding on the shaft 23, the shaft 2
3. The surrounding area is designed to prevent falling. The arm 3 extends at its front end to a position slightly protruding from the front edge of the base 1, and a test specimen holder 32 having a front surface parallel to the XZ plane is fixed to the front end. Magnets 33 are embedded at appropriate locations on the front surface of the test piece holder 32, and a stopper 34 extending in the X direction is provided on the lower edge. The stopper 34 is provided with a notch 35 at the position of the band saw blade P.

On the other hand, at the rear of the arm 3, there is a stand 24b.
A first gauge 4 is provided which has a push rod 41 that is supported by a push rod 41 and that moves forward and backward precisely by a predetermined distance in the Y direction by turning a knob. The pressing rod 4
The tip of arm 1 presses the rear end surface of arm 3. This first gauge has a mechanism similar to a micrometer. Further, a tension spring 35 is stretched between the rear end surface of the arm 3 and the stand 24b.

Furthermore, a second gauge 5 is provided at a side position of the base 1.
is provided. The second gauge 5 has a main scale 52 attached to the top of a leg 51 vertically extending from the base 1.
and a slider 53. The main scale 52 extends in the X direction and is engraved with a scale, while the slider 53 is slidable on the main scale 52 and is also engraved with a scale, and has a reference surface 54a in the YZ plane. ing. The main scale 52 and slider 53 have a mechanism similar to a caliper.

Note that T in the figure is a plate-shaped test piece.

As described above, cutting grooves in a test piece at predetermined positions using the jig of this embodiment is performed in the following manner.

First, a test piece T is prepared by cutting a product (assuming that the metal plates on both sides are steel plates) into a quadrilateral having a specified width as a test piece.

Next, the test piece T is brought into close contact with the front surface of the test piece holder 32 by the magnet 33, with the specified width being in the Z direction, and one edge (reference side) of the test piece T being regulated by the stopper 34. .

Thereafter, the arm 3 is pushed forward by the first gauge 4, and the test piece T is brought into light contact with the blade P of the band saw in the non-operating state. At this time, if the band saw blade P is not in contact with the entire width of the test piece T in the Z direction, the support stand 2 is tilted little by little around its axis 22 using the adjustment screw 21 of the support stand 2, and the test piece T is moved around the band saw. Set so that it is in line contact with the blade P, that is, completely parallel to it. At this time, it may be necessary to fine-tune the first gauge 4 again. The scale position of the first gauge 4 at that time becomes the zero position for cutting.

Next, the slider 53 of the second gauge 5 is slid to bring its reference surface 54a into contact with the side surface of the test piece T. The scale at this time becomes the zero position for the two kerfs.

Under such conditions, the band saw is operated, the first gauge 4 is used to drive the test piece T little by little, the first gauge 4 is used to feed the test piece T little by little, and the cutting groove is cut to the set depth (one side Stop feeding at the position (thickness of the metal plate). Thereafter, the first gauge 4 is moved backward and the operation of the band saw is stopped. At this time, the arm 3 is a tension spring 35
Since the first gauge 4 is pushed backward, the test piece T also retreats as the first gauge 4 retreats.

Next, the slider 53 of the second gauge 5 is moved and set by the distance between the two kerfs. Then, the test piece T on which one of the grooves has been machined is turned over, and the test piece is placed in the test piece holder while the reference side is in contact with the stopper and the side edge is in contact with the reference surface 54a of the slider of the second gauge. 32 to hold it in close contact. The position of the second kerf is thus determined.

Finally, a second kerf is processed in the same manner as the first kerf described above to obtain a desired test piece.

(3) Effects of the invention The invention with the above structure has the following effects.

The test piece is held completely parallel to the band saw blade on the support stand, and the first gauge feeds with high precision, making it possible to reliably cut grooves on only one metal plate, and to make it thinner. It can also be used for metal plates.

The second gauge allows two kerfs to be machined in parallel at precise positions.

The above-mentioned kerf machining is extremely easy and work efficiency is improved.

Since the cut grooves can be processed accurately as described above, it is possible to produce many test specimens with the same precision, which contributes to improving the reliability of shear adhesion force measurements.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway perspective view of the jig according to the embodiment of the present invention, Figure 2 is a front view of the jig in Figure 1, Figure 2 is a plan view, Figure 3 is a right side view, and Figure 3 is a front view of the jig in Figure 1. The figures are perspective views showing test specimens. Figure 1 shows one made by the conventional method of peeling off metal plates, and Figure 2 shows one made by providing cut grooves. 1...Base, 2...Support stand, 3...Arm, 3
2... Test piece holder, 33... Magnet, 34
... Stopper, 35 ... Notch, 4 ... First gauge, 5 ... Second gauge, T ... Test piece.

Claims (1)

[Claims for utility model registration] (1) Has an XY plane, and the XY plane is at least
A support stand that is supported on a base so that the angle can be adjusted around the axis, an arm that is arranged to be slidable in the Y direction on the support stand, and an arm that can be moved in the Y direction by an arbitrary predetermined distance. a first gauge; and a test piece holder fixed to the front end of the arm in the Y direction and holding the plate-shaped test piece in the XZ plane at a position protruding from the base; A part of the parallel front surface has a stopper for restricting the test piece in the Z direction, and the stopper has a width at least equivalent to the thickness of the cutting blade in order to receive the cutting blade at a predetermined position in the X direction. It has a notch, and the base is equipped with a second gauge that contacts the side edge of the test piece and positions it in the X direction.Specifically, for preparing a test piece for measuring shear adhesion force. jig. (2) The jig for producing a test piece for measuring shear adhesion force according to claim (1) of the utility model registration, characterized in that the test piece holder has a magnet embedded in the front surface.