JP2000288852A - Simple angle selection jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an inexpensive angle selection jig in which a handling is simple, certain and convenient and the number of parts is less by directly mounting on an upper surface of a milling machine table utilizing a mounted vice on the milling machine or the like. SOLUTION: A positioning straight pin 3 is inserted to a standard hole 1A of a base plate 1 and is made as a center of a rotation radius. A moving plate 2 corresponding to an angle selection is superposed and selects an angle and then the other positioning straight pin 3 is inserted to an angle selection hole 1B. The angle selection hole 1B is arranged at a space of 5 deg. and angle setting surfaces 2B are provided on two positions at the moving plate 2 and then, an angle of a space of 0.5 deg. can be set on three kinds of moving plates 2. An angle selection other than a space of 0.5 deg. is carried out in a similar method to a sine bar system in which a positioning straight pin is not inserted to the angle selection hole and a moving plate 2 of which the angle setting surface 2B is parallel is used and the angle can be set.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for easily setting a tilt angle when processing a tilted portion of a work by attaching it to a milling machine or the like.

[0002]

2. Description of the Related Art Conventionally, machining of an inclined portion of a work is performed by using a vise with a machine tool such as a milling machine (14) to incline and fix the work, and cutting by fixing the work vertically. There is a method of processing and fixing the work horizontally and cutting.

[0003] The method of cutting the work by inclining and fixing the work includes a method of forming an inclination angle using a protractor (10) on the work, a method of drawing a marking line on the work and aligning the marking line, and a method of preliminarily sloping a wire ( 11) Manufacturing method, method of attaching work to inclined metal deposit, inclined indexing device (12)
There is a way to use

[0004] There are two methods for cutting the work while fixing the work vertically, such as a method using a slanted machine tool (8) and a method using a slanted cutting tool.

As a method of cutting a work while fixing the work horizontally, there is a simultaneous two-axis moving cutting by a machine tool equipped with an NC control device.

[0006]

Conventionally, a method of obtaining an inclination angle using a protractor is performed while maintaining a positional relationship between a work, a protractor, and a vise. It is unstable. When there are many workpieces, the angle varies and the fixing is troublesome.

In the method of drawing a marking line on a work and aligning the marking line, a marking line is drawn in advance using a scale, a marking needle, a height gauge, or the like, and visually fixed to the vise using a scale or the like. This method is often used when the number of works is small, but when there are many works, the angle varies and the fixing is troublesome.

[0008] When a large number of works are used, a method of manufacturing a sloped metal in advance and fixing the sloped metal to the work is often used. Each time the angle of inclination is different, a tilted metal deposit is manufactured, which requires management and increases the manufacturing cost.

[0009] The method of using the tilting indexing device requires attachment to a table in order to machine the tilted portion.
It takes time to set up, and the tilt indexing device is expensive.

In the method using a machine tool with an inclination, it is also necessary to change the setup for moving a vise fixing position on a table for fixing the work, and when the inclined portion of the work is long, the work is fixed several times shifted. In some cases, a large diameter cutting tool is also required.

As for the method using the inclined cutting tool, a commercially available chamfering cutter (9) may be used if the inclined portion is short and the angle is 30 ° or 45 °.
The tool requires a dedicated inclined cutting tool, which is expensive and uneconomical.

The method using simultaneous two-axis moving cutting with a machine tool equipped with an NC control device requires an NC program.
It takes time to debug the program. In some cases, the work may have a long inclined portion, or the work may not be able to be sufficiently fixed to the vise and cannot be cut.

Although the inclined portion can be machined by the above-described method or the like, it takes a long time to set up, and there is a problem of work quality.
There is a problem that the expensive equipment cost of the inclined machine tool and the inclined indexing device is increased.

In order to solve this problem, a vice attached to a milling machine or the like is used, and the device is directly attached to the top surface of the milling machine table. It is an object of the invention to invent a structure that is easy and reliable to handle, has a simple structure with a small number of components, that is, a simple and inexpensive angle selection jig.

[0015]

According to the present invention, there is provided a method for simultaneously holding and fixing and using a jig and a work of the present invention using a vise attached to a machine tool such as a milling machine (14), and a method for directly using a milling machine table ( 13) A simple angle selection jig that can be attached to the upper surface and used.

In a flat base plate (1), a reference hole (1A) and a reference hole (1
The angle selection hole (1B) of the same size as A)
At intervals of 5 ° between 5 ° and the pitch between the positioning holes (2A) of the base plate (1) and the moving plate (2), and the sizes of the reference hole (1A) and the angle selection hole (1B), the base plate (1 ) Is 0 °, 10 °
5 °, 15 °, 25 °, 35 °, and 45 ° are arranged and moved on the same radius (R2) circle on the same radius (R1) circle. An arc-shaped long hole (1C) for fixing the plate (2) is provided. Also, fixing screw holes (1D) are provided for attaching the metal fitting (7) for the work and for attaching the work holding plate (6).

The moving plate (2) is a flat plate smaller than the base plate (1), and has the same size as the reference hole (1A) and the angle selection hole (1B) provided in the base plate (1) with the same radius as the pitch. Hole (2A), based on the hole, the angle setting surface (2B) is parallel, 0.5 °, 1
°, 1.5 °, 2 °, 2.5 °. By making the reference hole (1A), the angle selection hole (1B), and the positioning hole (2A) the same size, the moving plate (2) can be turned upside down, rearranged, and combined. Two angle setting surfaces (2B) are provided at each of the three positions, and three types of angles can be selected at 0.5 ° intervals.
A movable plate fixing screw hole (2C) is provided for selecting an angle arbitrarily other than at 5 ° intervals. Angle setting surface (2B)
By flattening, the mounting range of the work is expanded.

The positioning straight pin (3) has a reference hole (1A) of the base plate (1) and an angle selection hole (1).
B), the positioning hole (2A) of the moving plate (2) has the same dimensions as that of the moving plate (2), so that it is straight.

The structure of the base plate (1), the moving plate (2), the positioning straight pin (3), and the fixing bolt (4) for fixing the moving plate (2).

[0020]

According to the angle selecting method of the present invention, a positioning straight pin (3) is inserted into a reference hole (1A) of a base plate (1), the center of a turning radius is set, and the angle is selected. The overlapping angle of the moving plate (2) is selected, and another positioning straight pin (3) is inserted into the angle selecting hole (1B). Angle selection hole (1B)
Although the interval is 5 °, the moving plate (2) is provided with an angle setting surface (2B), and the moving plate (2) has an angle setting surface of 0.5.
The angle of the interval can be set.

The inclination angle of the work is innumerable. In the case of a small work, the function of the component is often satisfied even at 1 ° intervals. However, when the work is set at 1 ° intervals, the moving plate (2) angle setting surface (2B) is used. ) Are parallel, 1 ° and 2 °, and two types of moving plates (2) are required even if there are two angle setting surfaces (2B). By adding one type of moving plate (2) to three types, it is possible to set angles at 0.5 ° intervals. If the interval is 0.5 °, it can be used for most works.

In order to select an angle other than 0.5 °, the positioning straight pin (3) is not inserted into the angle selection hole (1B), and the moving plate (2) whose angle setting surface (2B) is parallel is used. Using the same concept as the bar method, the pitch between the positioning holes (2A) of the moving plate (2) is defined as the hypotenuse (R3) of the triangle, the height (H) of the triangle is determined, and the moving plate (2) is positioned at that position. To the fixing bolt (4)
The angle can be set by fixing with. 0 to 4
If an arbitrary angle of up to 5 ° can be set, the work can be mounted at 90 ° phase, from 45 ° to 90 °,
This has the same meaning that all inclination angles can be set.

The base plate (1) is enlarged and fixed horizontally to the vise. It can be directly mounted on the top of the milling machine table (13) and fixed horizontally by the work holding plate (6). Becomes possible.

The base plate (1) can be made smaller by forming the angle selection hole (1B) on two different radii (R1, R2) from 0 ° to 45 °. In the case where the base plate (1) is used together with the work, the height of the base plate (1) is adjusted to the height (5B) of the vise base to ensure secure fixing, and cutting is convenient.

In the case where the movable plate (2) is used while being sandwiched at the same time, the angle setting surface (2B) of the movable plate (2) can be fixed at a convenient position of the vise by extending the angle setting surface (2B), and the work mounting range can be expanded.

Positioning hole (2A) of moving plate (2)
If the length of the gap is increased, the angle can be set with higher accuracy.

[0027]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 shows an example of a simple angle selection jig of the present invention.

FIG. 3 shows an example immediately before a simple angle selection jig and a work are simultaneously sandwiched in a vise.

FIG. 4 shows an embodiment of the base plate (1). A reference hole (1A) serving as a center for angle selection and an angle selection hole (1B) for selecting an angle are arranged. The angle selection hole (1B) is 0 ° depending on the size of the base plate (1).
From 45 ° to 45 ° on the same radius circumference, or on two circumferences due to mechanical strength. The reference hole (1A) and the angle selection hole (1B) have the same dimensions, which is convenient for manufacturing. To select an arbitrary angle from 0 ° to 45 °, there is an arc-shaped long hole (1C) used for fixing the moving plate (2).

FIG. 5 shows an embodiment of the moving plate (2). When the angle selection holes (1B) of the base plate (1) are arranged on the same radius circle from 0 ° to 45 °, the moving plate (2) has two positioning holes (2A) and two types. If they are arranged on the circumference of a circle, there are four places. The angle setting surface (2B) is the positioning hole (2A)
With respect to the center line between them, there are three types, one set of three types, that is, a parallel and a tilt of 2.5 °, a tilt of 0.5 ° and 2 °, and a tilt of 1 ° and 1.5 °. Since the moving plate (2) is used upside down, rearranged, and combined, the inclination of the angle setting surface (2B) is set on both surfaces, and the angle setting surface (2B) to be used is used.
Is written over the letters.

FIG. 6 shows an embodiment in which an arbitrary angle is selected without using the angle selection hole (1B). The moving plate (2) is such that the angle setting surface (2B) is parallel to the center line between the positioning holes (2A) of the moving plate (2). The length between the positioning holes (2A) is defined as the hypotenuse (R3) of the triangle, and the positioning holes (2A) are added to the sine function value of the selected angle (K) in the same way as the sine bar.
By multiplying the length between them, the value of the height (H) of the triangle is obtained. This value is measured by a measuring instrument or the like, and the movable plate (2) is fixed with fixing bolts (4) to set the angle. In this embodiment, four positioning holes (2A) are used. The longer one between the positioning holes (2A) is set with higher accuracy.

FIG. 7 shows an embodiment in which angles from 13 ° to 17 ° are set. The positioning hole (2A) on the left side of the moving plate (2) is fitted to the reference hole (1) of the base plate (1).
On the A) side, the right positioning hole (2A) is arranged at 15 ° of the angle selection hole (1B), and the angle setting surface (2B)
Sets the angle at 1 ° intervals from 13 ° to 17 °. 13 ° and 17 °, 14 ° and 16 ° are reversed, rearranged, and combined. An angle of 0.5 ° can be set by a combination of three types of moving plates.

FIG. 8 shows an example in which a simple angle selection jig of the present invention and a work are simultaneously sandwiched and fixed to a vise. When processing the same workpiece many times, hitting bracket (7)
Attach.

FIG. 9 shows an example in which the simple angle selection jig of the present invention is horizontally fixed to a vise. The work is horizontally fixed with the work holding plate (6), and the side is cut with a cutting tool. A simple angle selection jig can be directly attached to the table for use.

[0034]

The inclination angle of the work is often standardized in the company. However, due to the functions of the machine and the device, there are works with various inclination angles. The fact that the angle of 0.5 ° can be set reliably by simple handling of inserting the positioning straight pin (3) is more reliable and safer to use than the one with the scale. 0.5
It seems that the angle is satisfactory enough, but any angle can be easily set.

In order to set an arbitrary angle, a trigonometric table and a calculator with a trigonometric function are required, but this is not necessary for setting an angle of 0.5 ° which is mainly used.

It is common to see that a large number of inclined metal deposits are produced in machining plants, but this is not necessary if the present invention is used. When an inclined metal deposit is required to process a large number of workpieces, it may be manufactured using the present invention. For a small number, it goes without saying that it is convenient. Regardless of the number of workpieces, the setup time can be greatly reduced, so that the effect is large.

In the machine tool with the NC control device, the inclined portion can be simultaneously biaxially moved and cut. However, there is a machine tool in which the uniaxially movable cutting process is required depending on the fixing method and the size of the work. Metal fitting (7) for hitting base plate (1)
If the fixing screw holes (1D) for fixing and fixing the work are added, the work can be fixed in a tilted and horizontal manner, and both can perform one-axis moving cutting.

According to the present invention, if the shape of the parts is simple, the combination of a small number of parts, and the number of parts is small, the entire jig is compact and can be manufactured and provided at low cost.

[Brief description of the drawings]

FIG. 1 is a front view and a side view showing an example of a simple angle selection jig of the present invention.

FIG. 2 is a perspective view showing an example of a work.

FIG. 3 is a perspective view showing an example of a simple angle selection jig of the present invention and a work immediately before a work is simultaneously sandwiched between vices.

FIG. 4 is a plan view of a base plate (1) of two basic types.

FIG. 5 is a plan view of a movable plate (2) of two basic types.

FIG. 6 is an explanatory diagram when an arbitrary angle is set.

FIG. 7 is an explanatory diagram of an embodiment in which angles are set at 1 ° intervals.

FIG. 8 is an example in which a simple angle selection jig of the present invention and a work are simultaneously sandwiched and fixed to a vise.

FIG. 9 is an example in which the simple angle selection jig of the present invention is horizontally fixed to a vise.

FIG. 10 is an example of a protractor used in the prior art.

FIG. 11 is a perspective view showing an example of a conventional technique immediately before fixing a work using a slanted metal vise.

FIG. 12 is an example of a tilt indexing device used in the prior art.

FIG. 13 is a perspective view showing an example in which a work is horizontally fixed to a vise according to a conventional technique.

FIG. 14 is an example showing processing of a workpiece by a milling machine.

FIG. 15 shows an inclined machine tool used in the prior art.
It is an example showing processing of a work.

FIG. 16 is an example of a chamfering cutter.

[Explanation of symbols]

 Reference Signs List 1 base plate 1A reference hole 1B angle selection hole 1C arc-shaped long hole 1D fixing screw hole 2 moving plate 2A positioning hole 2B angle selection surface 2C moving plate fixing screw hole 3 positioning straight pin 4 fixing bolt 5 vise 5A vise base 5B vise base Height 6 Work holding plate 7 Metal fittings 8 Inclined machine tool 9 Chamfering cutter 10 Protractor 11 Inclined bevel 12 Incline indexing device 13 Table 14 Milling machine H Height of triangle K Angle R0 Radius R1 Radius R2 Radius R3 Triangle hypotenuse W Work Work after processing W1

Claims (2)

[Claims] 1. A jig for easily setting an inclination angle when machining an inclined portion of a work (W) by a machine tool such as a milling machine (14). A flat base plate (1) has a reference hole. An angle selection hole (1B) having the same dimensions as the reference hole (1A) is formed on the circumference of a constant radius with (1A) at an angle of 0 °.
Are arranged at intervals of 5 ° from each other, and an arc-shaped long hole (1C) for fixing the moving plate (2) is provided. A fixed radius of a reference hole (1A) and an angle selection hole (1B) provided in a flat base plate (1) smaller than the base plate (1) is set as a pitch, and a positioning hole (2A) of the same size is provided. Angle setting surfaces (2B)
Are parallel, 0.5 °, 1 °, 1.5 °, 2 °, 2.5 °
Using the three types of moving plates (2) described above, insert the positioning straight pin (3) into the reference hole (1A) of the base plate (1) and optionally select the angle selection hole (1B), and select Turn the moving plate (2) upside down,
By recombination and combining, the angle from 0 ° to 45
Set the angle easily and reliably at 0.5 ° intervals between °.
When the angle is set to an angle other than 0.5 °, the positioning straight pin (3) is not inserted into the angle selection hole (1B) of the base plate (1), and the moving plate (2) is set on the angle setting surface (2B). Are combined, the length between the positioning holes (3A) is the hypotenuse of the triangle, and the sine function value of the selected angle is multiplied by the length between the positioning holes (2A) in the same way as the sine bar. The value of the height (H) of the triangle is obtained. This value is measured by a measuring instrument or the like, and the movable plate (2) is fixed with fixing bolts (4) to set the angle. A simple angle selection jig composed of a base plate (1), a moving plate (2), positioning straight pins (3), and fixing bolts (4). 2. A reference hole (1A) and an angle selection hole (1B).
At an angle of 0 °, 10 °, 20 °, 30 °, 40 ° on the same radius circle, 5 °, 15 °, 25 °, 35 °, 45 °
2. The simple angle selection jig according to claim 1, wherein the angles are arranged on the same radius circle.