JPS59146704A - Tool with polygonal motions - Google Patents

Abstract

PURPOSE:To enable polygonal motions of a tool without necessity for installation of a guide by connecting output shaft and input shaft through a transmission gear mechanism and constructing the output shaft in such a way that it can rotate around its axis with a different number of revolutions in the direction opposite to that of its orbital revolutions. CONSTITUTION:In a tool moving in such a way that it depicts a locus of a polygon, an output shaft 18 is positioned with an eccentricity alpha with respect to an input shaft and at the same time, a minor diameter bottom part 18 is supported free to rotate on a flange 2 and the opposite end part 18b on a frame body 20 respectively. And, a burnishing tool 28 is accommodated between a supporting piece 4 of shaft 18 and a longitudinal frame 20c located at the end. Then, when a shaft is made to rotate, the shaft 18 makes rotations around its center 1' of the shaft 1 and at the same time, around its center 18'. In this way, a carbide ball 31 (that is to say, a tool 28) performs a polygonal motion with a free choice of each individual gear ratio and amount of eccentricity without the requirement for a guide.

Description

[Detailed Description of the Invention] The present invention is a polygon that moves as if tracing a polygon locus]! l (related to power tools).

Conventionally, tools for machining polygonal holes have been equipped with a polygonal guide that has the same shape as the polygonal hole in the workpiece in order to move the cutting edge along a polygonal trajectory. 17. It is well-known that the old and new craftsmen.

However, this tool requires a polygonal guide with the same shape as the polygonal hole of the workpiece, so as the structure has become more complex, and if the shape of the polygonal hole differs, each time the n-shaped guide It is safe, and there are cases of poor versatility, etc.

Because the cutting edge moves along the guide, when the blade and cutting edge wear out, the polygonal shape of the cutting edge changes.
-7: There is a problem that the processing accuracy decreases.

The present invention has been made in view of the above circumstances, and its purpose is to provide a polygonal exercise tool that allows polygonal movement without providing a guide.

The present invention will be described in detail below with reference to the drawings.

A flange 2 is integrally formed on the input shaft 1, and the flange 2
The protruding wall 3 is integrally formed 1-7, and the receiving body 4 is attached to the protruding wall 3 with bolts 5, and the opposing ends of the receiving bodies 4 and 7 flange 2 are connected to each other. 1l-i between
9 A gap 6 is formed.

The outer peripheral surface 2h of the flange 2 and the outer peripheral surface AhV of the receiver 4
C is 1st and 2nd No. 7 and 8 are 1111 and 9. I
It is also relatively rotatably provided through Q'<! 1. 1st.
The second housing 7.8 is connected with bolts (not shown), and the first housing 7 is connected to a ring
1 is fixed with bolt 12 (7).

On the end face 2a of the proverbial flange and the singing face 4σ of the receiver 4, J-,
UT Shoes-J', l, 2nd gear 13. +4;i!
II" is rotatably attached to the spindle 15°, 16mm, 9b, and the gear 13 is engaged with the ring gear 11, and 3 gear 1) meshes with the second gear (7), and the receiver 71K rotates and is supported on the 1-
ZJ input provided on the output shaft 18 4) tn ]lt 1
q meshes with the second wheel 14.

The front H[[output 118 has a fine hair α 1 with respect to the input shaft 1, and -Jlj, the base end small diameter portion 18a is rotatably supported on the flange 2 (ζ, and the other end 18 is It is rotatably supported on the frame 20.

The frame body 20 (fl) is formed into a downward U-shape by the base frame 20σ fixed to the first housing 7 with bolts 21, the protruding horizontal frame 2Qh, and the tip vertical frame 20C, and the tip vertical frame 2qC. It is spaced apart from the receiver 4, and is also spaced apart from the top vertical frame 20C (12
2, a 101 rolling element 24 is rotatably provided with a bearing 23,
The eccentricity of the rotating body 24 (L25) is such that the output shaft tip Bh is rotatably fitted and supported via a bearing 26 (-7°).
7 is a cover body, and a tool 28 is attached to the part between the receiver 4 and the tip (following frame 20) of the output shaft 18.

1; The tool 28 has a holder 32 equipped with a carbide ball 31 attached to the recess 30 at the tip of the arm 29.

At the seat 5, the first housing 7 is fixed to the fixed body 11-
One-man power 1liII+1 is 1WDi? J+ is connected to the source.

Only 1. When the input shaft 1 is rotated -4'', the output shaft 18 revolves around the center 1' of the input shaft 1, and the first gear I
3 revolves along ring gear II (1) and revolves (-7 while rotating (
-7, since the third gear 17 is also the same, the second gear 111
1. The output shaft 18 rotates around its center 18' by turning the fourth tooth depth j9.

With this, each tooth ratio and eccentric elbow α can be set arbitrarily (11-・
~By selecting the ball, you can make a carbide ball 31 (that is, engineering ↓) 62
8) Make Z/gon) ηfton.

f・11 years old shoulder Y, the number of r bundles i of ring gear 11 is 96 pieces,
1st to 4th floats' 3 + 141'', if 19 floats are 15, A0, 20, and 32, the rotation of the output shaft center 18' around the input shaft center 1' The number (orbital rotation speed) is the output 1 centered on the NAz output shaft center 18'.
1ilI+ l The number of rotations (rotation number of rotation) of 8 is N8 n@fko, NA' A113= 3 Knee 1
(In other words, the output Il#IN8←[self Φ;:l-1' in the direction opposite to the common Φ1 direction at a rotational speed of 100 times the revolution speed), and the eccentricity of the output shaft 1B [11α''CI 2. 5mm and (-7, 4 with carbide ball 3Mt from output shaft center 18'
When ζ food is 100 rabbits, carbide ball 31 ij:
/i square luck t2i+4.

Dimensions, r'7 N, -= A: + and i+: J The carbide ball 31 makes a pentagonal motion.

Because of this, it is possible to burnish the concave portions 7.]' of the workpiece 84 into a curved shape as shown in FIG.

If the FL-28 is used as a boring tool, it will process a polygonal hole A'' in a workpiece A as shown in Figure A, and if it is used as a milling tool, it will produce a workpiece as shown in Figure 5. Δ(t,
%, 4'11 processing, tooth profile tool and pickpocket, i, i
'As shown in FIG. 6, the tooth profile/edge of the gear 13 can be completely machined.

As described above, the present invention allows polygonal movement of the tool without providing a guide, and allows machining with high accuracy over a long period of time.

[Brief explanation of drawings]

The drawings show embodiments of the present invention.
Line sectional views, FIGS. 3, 4, and 5 are explanatory views of the processing side. 1 (input axis, 18 welfare output 2) (, 26 work ↓L. Out, ・jiIi person Komatsu Manufacturing Co., Ltd. 1 r agent patent attorney Yonehara IL i 6 patent attorney Flood
Tadashi 1. Figure■ Figure 2-1■

Claims (1)

[Claims] The output shaft 18 is eccentrically and rotatably supported on the input IItllII (7, the output shaft 18 and the input shaft j are connected through the tooth 1 mechanism 7, so that the output shaft 18 rotates at different rotational speeds in the direction opposite to the revolution direction). The output shaft 1 is configured to rotate on its own axis, and the output shaft 1
A polygonal exercise tool, characterized in that a tool 28 is attached to 8;