JPS5890411A - Long hole chamfering cutter - Google Patents

Abstract

PURPOSE:To perform chamfering in a long hole at the same time on the obverse and reverse in such a way that a cutter is inserted through one lateral face of a long hole, and after the cutter is positioned at the determined position of the cutter, the cutter is turned. CONSTITUTION:While a long hole chamfering cutter 10 is kept under the condition that it is turned by 90 deg. in the core axial port for a long hole 3, 4 drilled in a part 1 or 2, and after the front and rear chamfering edge parts 12, 13 are positioned on the obverse and reverse of the long hole 3, 4, at the same time as its chamfering tool part 11 is inserted, a rotary driving part (unshown in the figure) which is connected to the main body 10 of the cutter is started in its operation. Chamfering can be completed simultaneously on the both obverse and reverse of the long hole 3, 4 by turning the chamfering edge part 11.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a long hole chamfering cutter.
[Insert the cutter from 1111B, and insert the cutter into the long hole at the M foot position.
To provide a long hole chamfering cutter that can perform the Itl increase work in a bullet hole at the same time by rotating the cutter after positioning the cutter.
The purpose is 1.

Figures 1 and 2 a, sorc ('B long hole 3.41? hole 1,
72 parts 1 and 2 are shown, and FIG. 1a shows plate-shaped parts 1. FIG. 2 shows an rx@-shaped part 2'.

- These parts 1.20 The removal work that occurs when drilling the elongated hole 3.4a Normally, it is carried out by surface sv drilling with a file, but it is carried out by hand [1[l]
The difference between the 11 workers involved in the processing also has a large influence on the Torito Loe, and the following drawbacks exist.

11) Dimensions cannot be uniformly machined (it is difficult to machine the back side of the long hole in the cylindrical forest part shown in Figure 312).

Therefore, the object of the present invention is to provide a long hole chamfering cutter that can perform these drawbacks (face machining) and simultaneously chamfer the surface Mlnl of the long hole. , Specific examples thereof will be explained below with reference to the drawings.

Figure 73.4 shows the 71st embodiment of the cutter of the present invention, in which the cutter main body 10 has a chamfered edge 11tP formed in a flat shape and a chamfered edge portion 11vcO.

A pair of front and rear rkJ scattering blades 12 and 13' having an angle f of α from the outer circumferential line A of the cutter main body 10 are disposed oppositely with an interval t, so that they can be separated by 1lIl.

As for Kasumi, the front side chamfered blade 12 is provided with a tip blade 14 that bears an angle of aθ.

To explain the method using a long hole chamfering cutter taken from a paulownia wood, first, use a feldspar chamfering cutter in the state shown in the third figure for the long holes 3 and 4 that are drilled in part 1 or C2. , while rotating the axis 90 degrees at the center line opening to the state shown in Figure 4.

The chamfered blade part 111 - insert it and chamfer both the front and rear sides 1
2.13vi-After positioning the front and back sides (2) of the long holes 3 and 4, cutter body 10Y! One connected six-rotation drive WrJ part (
By starting the machine (not shown) and rotating the single chamfer s11, the chamfering process on both the front and back sides of the elongated hole 3.4 can be completed at the same time.

Figure 78 shows the part of the elongated hole after chamfering l1 by the fastening method.

However, after inserting into the long holes 3 and 4 and positioning the chamfering blades 12 and 13 with the flat portions of the tip chamfering blades 1 to 11 in a horizontal state as shown in FIG.

The chamfering blade part 11 is rotated to perform an extra cutting operation vi.
- Instead of the place where it is carried out, initially 19 force is inserted into the end of the elongated hole 3.4 while rotating the main body 10. While positioning the front and back sides of -! It is possible to apply a chamfer in the length direction of R hole 3.4, and by this method, chamfer 7XJIt can be applied.
Implemented 'ft17 EC%'77 As shown in the figure
The outer diameter Φ of the tip blade 14 of the cup body 10 is at the end W6 of 4,
A round hole 3a with a diameter that echoes.

t4m)' remains.

23.4 For the lifting of the embodiment shown in Fig.
It is formed into a flat shape, and the name of the cutter is C1. A pair of front and rear rjnJG [blade 12
The latter method is used for the case of 9 cutters with a chamfered long hole and 9 cutters with a chamfered hole of π.The latter method is used.

sHR of 9 cutters with chamfered long holes in the embodiment shown in Figures 3 and 4.
While the tip blade 14 can be used for general purposes, it is difficult to perform work 1-* on the long hole chamfer cutter (not shown) that is scattered from the configuration where the tip blade 14 is not equipped. To m-a, o, ry 0 according to the former method.
Corresponding to the angle C1 side dispersion dimension of α of % 13, it is intercepted by a large angle and the spacing between the chamfering blades 12 and 13 is 10
Face N! It corresponds to the wall thickness of parts 1, 2, etc. to be re-striped, and has a large spacing! It's what it is.

Therefore, the distance t1 between the chamfering blades 12 and 13 is set according to the wall thickness of the part to be chamfered, and the 22nd embodiment shown in FIGS. This is a long hole #I cutter.

In the figure, a front chamfering blade 23 having an angle f of α is provided as in the 200-point flattened W6211C, 71-piece embodiment. 1
*In the cutter part, there is a threaded part 2 for connecting the cutter part to the outer circumference of the shaft part 20 of this front cutter part 20.
4 is screwed on.

250 forward direction mK, rear 11 chamfered blade 26t having an angle α similar to that of the 21st example, t set in a direction that can face the additional four-sided blade 23, and a part of this backup cutter. 25 medial aspect R front cut l-920 (Dne 9f
! The screw 11b: 4-9 part 27 is screwed into 1B24.

By screwing the back cutter part 25 into the front cutter part 20 while screwing the back cutter 1525's screw 271 into the threaded part 24 of the front cutter s20,
Long hole chamfering cutter , the long hole chamfered 9 cutter KIn is a penalty cutter.
920, the gap between the rear cutter @S25 and the center cutter @KL can be arbitrarily adjusted to correspond to the thickness of the part to be cut on one side. After adjusting the interval t' by screwing the cutter part 25, 75
As shown in the figure (by fixing the setscrews 28, both the front and rear forceps are fixed. $20.25). A long hole chamfering cutter for chamfering can be chamfered ◎ Same, 76
Fig. 025 Figure: Long hole chamfering 9 cutter part 20
Insert the flat tip part 21 horizontally and in the t state,
1 car 7 after insertion! This figure shows the state in which the n-trimming blades 23 and 26 are positioned on both the front and back sides of the long holes 3 and 4.

The chamfering knife Loe method can be carried out by the same method as the long hole chamfering cutter of the first embodiment described above, so the angle t of 025.6 I shown in the figure is omitted.
- Shoulder tip blade 29kWrUgPA27 Tsuta 920 with V1fmwohm example.

As for the explanation of the example of not having a man with this fL,
Since it is the same as the 71st embodiment, the explanation will be omitted.

From the above explanation, it is clear that the reason is 9. The uninvented long hole chamfer cutter 11 can eliminate the fatigue of traditional manual chamfering workers and shorten the time required for each operation. ? ! The chamfer dimensions between the elongated holes of the r part can be uniformly machined to 71D, and the ellipticity of the chamfer dimension and the part ffft can be made the same.

Furthermore, due to the surface weight of a long hole, it is possible to perform chamfering on both the front and back sides at the same time, and it is also easy to chamfer the back side of a long hole in a cylindrical part. ◎ In particular, it is possible to adjust the spacing between the chamfering blades and the wall thickness of the long hole of the knife Loe parts, making it possible to adjust the spacing between the r It can be used for chamfering long holes in sheet parts.

[Brief explanation of the drawing]

Figure 71.2 is a perspective view of a plate-like machined cylindrical part with long holes, and Figure 23.4 is a plan view showing the first embodiment of the long hole face cutter of the present invention. City map 1, sonozon
Showing the 11 [] nD machining method for long holes in 5 products, Section 5.6
Figure C is a plan view showing the second embodiment of the long hole chamfering cutter according to the present invention.
Figures 5 and 6 show how to drill the surface of the long hole in the tKs product.
8 is a partial view showing the long hole 1 after being chamfered by the long hole circle SO cutter shown in FIGS. 1... Part 2... Cylindrical part 3... Long hole 4... Long hole 10... Cutter main body 11... Flat chamfered blade part 12... Punishment @ Chamfer blade 13... Rear @ Chamfer blade 14... Tip blade 20... III cutter part 21... Flat tip part 23... Punishment @ Chamfer blade 24... Threaded part 25 ... Rear cutter part 26 ... Rear side chamfer blade 27 - Threaded part 28 ... Set screw 29 ... Tip blade Shi Nara Takeki 1 Diagram 3 Sasa 2 Diagram 4 Procedural amendment (method) December 29, 1980, 1981 Axis Permit Application No. 93453 Sustainability of the invention 2. Elongated hole chamfer cutter 3, amendment. Relationship with the case of a patented noodle vendor MII'ifr 2-43-2 Hatagaya, Shibuya-ku, Tokyo
(,037) Orin (Nu Kogaku Kogyo Co., Ltd. Director, Company amount: Kita-kan, Bo Oo 4, Agent 6, Number of inventions increased by amendment 7, Subject of amendment (1) Details ★ No. 9 The description in the negative 6th line is corrected according to the lower part 6C. ``Partial view showing the cutting hole after the removal force Ω1, the 9th mark is the jth large silver reli of this % clear moxibustion hole @ removal cutter'' It is a -1 diagram where 1 is omitted from 1.

Claims (1)

[Scope of Claims] A long hole r# chamfering cutter characterized in that the chamfering blades having a pair of chamfering blades having an angle f of α around +11 are disposed opposite each other to have a large dispersion. (A pair of chamfered blades 11 front and rear rL2 with an angle f of α of 21) 3 For one ao* blade t and the other chamfered blade:
By arranging them so that they can move freely in the rear direction? 1l
Nine long hole chamfered cutters featuring ffLl. (3) Jc arrangement wjluk Double-sided chamfered blade portion is shaped flat and features a large tube.A cutter with an elongated hole and a number of 9 sides as described in claim 21, item 2, and item 2. (4) The chamfered edge portion on the front side is provided with the tip edge ′ so as to be free from damage.
9 cutters for chamfering long holes with 22 threads.