JPS60255303A - Machining of work and apparatus therefor - Google Patents

Abstract

PURPOSE:To effectively machine outer periphery and end surfaces of a work by inserting the work into and through a rotary doughnut inner peripheral cutter or supporting it on the front surface thereof for smooth chip ejection. CONSTITUTION:A cutting tip 18 is provided at the extreme end of a cutting tool shank 9, and a cutter head 1, receiving a rotating work 21 inserted therethrough, is rotatingly driven by a motor 3. The cutter head 1 is tiltingly placed on a sliding table 19 so as to dispose the cutter face at an angle of 90-alpha degrees of the axis of the work 21. When the head 1 is fed by a sliding table 20 in parallel to the axis of the work 21, tilting of the cutter face gives a moving locus 23 of the tip 18, resulting in effective machining.

Description

[Detailed description of the invention] Concerning the law and its devices.

Traditionally, in this type of work, i! ! ! However, the present invention has been made to solve these problems, and the rotating donut type Workpiece machining that allows efficient machining of the outer periphery and end face of the workpiece by inserting the workpiece through the internally fixed cutter or supporting it on the front 17, making it possible to smoothly escape chips and make it easy to adjust the entry and exit of the cutting tool. The invention provides a method and an apparatus therefor, and the subject matter of the patent resides in the invention described in the claims.

Next, embodiments of the present invention will be described in detail with reference to the drawings.

In the figure, 1 is a cutter head, and the main shaft 2 of this cutter head rotates a pinion shaft 5 from the output shaft of a variable speed motor 3 via a heald 4, and a gear 6 that engages with the pinion shaft 5.
It is driven by.

At one end of the cutter disc 7, an outer periphery spigot part 8 is formed for fitting the inner periphery of the cutter disc 7, and on one side of the force/interdisk 7, a concave surface with the center cut out is formed. A plurality of spigot grooves 10 into which the bite shank 9 fits are provided in the concave surface in an equally radial manner,
The bite shank 9 is inserted into this spigot groove 10, and is fastened to the mounting surface on the main shaft 2 side with a mounting bolt 11 via a washer 12.

A cutting tip 18 is provided at the tip of the bite shank 9, and the tip of a tongue holder 13 is screwed into the center of the rear end.

This tongue buckle bolt 13 passes through a protrusion 14 on the outer peripheral edge of the cutter disc 7, and a square hole 15 for inserting a handle for rotating the tongue buckle port 13 is provided in the center of the end surface of the tongue buckle port 13. It is provided.

In addition, a long hole 16 is provided in the center of the cutting tool shank 9 to prevent interference with the cutting tool mounting bolt 11 when the shank is moved, and when rotating the tongue buckle bolt 13,
The bite shank 9 can be moved arbitrarily in either the inner or outer circumferential direction of the cutter disk 7, and is capable of making fine adjustments when correcting the center runout of the cutting tip 18.

After the centering adjustment/height shank 9 is firmly fastened by the mounting port 11.

When installing the cutter, insert the cutter disc 7 into the spigot part 8 of the main @2, and
of the main shaft 2 side, and insert the canter mounting ports 11 into the holes equally spaced between the pilot grooves 10 for cutting tools on the cutter disc 7. l12
This is completed by screwing into the tap hole provided on the side cutter mounting surface and firmly fixing the cutter disk 7.

Here, to explain the specific operation of this device, the outer periphery of the workpiece 21 is machined as shown in FIG. It is installed at an angle of α degree.
This is because during machining, when the power/interhead 1 is sent parallel to the axis of the workpiece 21 on the lower slide table 20, the cutting edge tips 18 constituting the cutter are used to work in different cutting areas. - By tilting the surface, a motion locus 23 of the cutting blade tip 18 as shown in FIG. 4 can be obtained, and the angle formed with the cutting surface 22 is β.

By setting this angle β to be greater than the lead angle when feeding the cutter 1, each cutting edge 8 can be made to work in a different cutting area.

In addition, as shown in Fig. 5, the front side of the short large-diameter workpiece is
Using a cutter with a cutting tool in which the J-blade tip 18 protrudes outward from the end surface of the protrusion 14 of the cutter disk 7, the cutter lower mounting surface is tilted at a small angle of δ with respect to the end surface of the workpiece 21 at an angle E. It is installed on the tank moving table 19] and performs end face processing, and prevents wear of the cutting tip 18 by allowing the cutting tip 18 to escape in areas with less cutting allowance, making it the most efficient method. The end face of the workpiece 21 can be machined.

In addition, a tapered surface is formed from the end surface of the protruding portion of the outer peripheral edge of the cutter disk 7 to the spigot groove 10 for attaching the shank, so that chips can escape smoothly.

The present invention is constructed as described above. Particularly in turning work, the material is sticky (stainless steel material with strong tensile strength), which generates continuous chips, which may cause the machine to stop intermittently or step feed. I was forced to process it, but
In such cases, the present invention has significant effects, such as extending the product life of the cutter and reducing the frequency of tool replacement.In addition, when the cutter head is mounted on a cross table, numerically controlled profiling is possible. In particular, when machining large objects, there is less wear on the tool compared to when using a plant cutting tool, and extremely high-precision machining can be performed.

[Brief explanation of the drawing]

Figure 1 is a sectional view taken along the line A-A in Figure 2, Figure 2 is a front view showing the relationship between the donut-shaped inner cutter and the workpiece, Figure 3 is an open plan view, and Figure 4 is the locus of the cutting tip. 5th side view showing
The figure is a plan view showing the end face processing state of the workpiece. I...Cutter head 7...Cutter disc 9
... Bite shank 10 ... Spigot groove for shank installation 11 ... Mounting bolt 13 ... Tongue buckle port 14 ... Protrusion 15 ... Square hole 16
... Long hole 18 ... Cutting blade tip 19 ... 1 Partial tank moving table 20 ... Lower sliding table 21 ... Workpiece 24 ...
・Bed patent applicant Masao Obata

Claims (1)

[Scope of Claims] (1) -, f-, a part-tank moving base is movable in a direction perpendicular to the bed center line, and a cutter head is installed at a certain angle on one part of the part-tank moving base. Insert a workpiece into the donut-shaped inner cutter that is rotatably attached to the cutter head, support the workpiece parallel to the center line of the head, and rotate it in the opposite direction to the donut-shaped inner cutter. A method for processing a workpiece, characterized in that the workpiece is cut by moving the slider, and the outer periphery of the workpiece is processed by moving the lower sliding table. A donut-shaped inner circumferential cutter with a blade is installed on the upper sliding table at a certain angle with respect to the work surface, supported on the front side of the donut-shaped Uchioka canter, and the work is rotated in the opposite direction to the cutter. A workpiece machining method characterized by applying force to the end face of the workpiece. (3) forming a concave shape on one side of a donut-shaped cutter disk having a spigot hole on the inner periphery, and providing a plurality of spigot grooves for attaching a bite shank in an equally radial pattern on the concave surface;
A tapped hole for attaching a cutting tool shank is provided at the center of the groove, a protrusion is formed on the outer periphery of the cutter disk, a taper surface is formed from the end surface of the protrusion to the spigot groove for attaching the shank, and a taper hole is provided at the center of the protrusion. A tap hole is provided on the center line extension of the spigot groove for shank installation to fit one side of the tongue buckle holt, and a cutting tip is provided at the tip of the viton yank, and a cutting edge is provided in the center on the surface of the tip surface and the face angle. A long hole for mounting is provided, a tapped hole is provided at the rear end in which the other side of the tampunk bolt fits in at a position corresponding to the tapped hole of the protrusion during refining, and a square hole for operation is provided on the end face of the tampunk bolt. What is claimed is: 1. A workpiece processing device characterized in that the counter holes for attaching counters are equally spaced between the spigot grooves for attaching a bite shank.