JPH04133506U - Rotary tool holder tool retention device - Google Patents

Abstract

(57) [Summary] [Purpose] This is an improved rotary tool holder used in a machine tool equipped with a rotary tool, and prevents the rotary tool from slipping out of the rotary tool holder during workpiece machining. [Structure] A tool slipping prevention device that has a groove in the grip of the rotating tool and a rotating tool slipping prevention device fitted into the groove.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention was applied to rotary tool holders used in machine tools equipped with rotary tools. This invention relates to preventing a rotary tool from coming off during workpiece machining.

0002

[Conventional technology]

Conventionally, the tool 05 shown in Fig. 6 was gripped by the rotary tool holder 01 and the workpiece was machined. However, during machining, the rotary tool 05 slipped out of the rotary tool holder 01 and an extra workpiece was removed. It will be cut into.

0003

[Problem that the idea aims to solve]

Conventionally, the handle of the rotary tool 05 was grasped by the rotary tool holder 01 using a spring collector. It is tightened with nose ring 02 and tool tightening nut 03 via nut 04. The condition of the outer diameter of the handle of rotary tool 05, and the distance between the tool and spring collet 04 If oil or dirt gets into the tool, the gripping force may decrease due to aging of the rotary tool holder 01, etc. When the rotary tool 05 is used for heavy cutting, depending on the lead direction of the rotary tool 05, the rotary tool There is an issue where 05 comes out.

0004

[Means to solve the problem]

This invention solves the above-mentioned conventional problems, and the problem is that the rotary tool can be removed from the rotary tool holder. To prevent it from coming off, provide a groove in the grip of the rotating tool, and fit a rotating tool retainer into the groove. This is a device to prevent the tool from falling out of the rotary tool holder.

[0005]

[Effect]

Rotary tools that easily fall out of the rotary tool holder while machining a workpiece should be placed in the groove of the rotary tool handle. The installed tool removal prevention device is touching the end face of the spring collet, so it cannot be removed. I can't get out.

[0006]

【Example】

An embodiment of the present invention will be described based on FIGS. 1 to 5. 1 is a rotary tool holder, and 2 to 4 are the holes attached to the rotary tool holder 1. ring, tool tightening nut and spring collet, 5 is a rotating tool, 6 is a rotating The groove 7 provided in the grip of the rolling tool 5 is a two-part ring with a stepped outer circumference. Ru.

[0007] Next, the operation of the present invention will be explained. As shown in Figure 4, the nose ring 2 and spring collector removed from the rotary tool holder 1 A rotary tool 5 having a groove 6 at the end of the handle is fitted into the cutter 4, and the split ring 7 is inserted into the rotary tool 5. Insert the split ring into the groove 6 of the handle and pull it toward the blade side of the rotary tool 5 as shown in Figure 5. 7 is installed. Fit it into the rotary tool holder 1 with the screw of the nose ring 2, and then tighten the tool with the tool tightening nut 3. By rotating the rotary tool 5, the rotary tool 5 is tightened to the rotary tool holder 1.

[0008]

[Effect of the idea]

The tool removal prevention device of the present invention can be used by attaching it to a rotary tool and a rotary tool holder. This may cause the rotary tool to slip out of the rotary tool holder during workpiece machining and damage the workpiece. There's nothing left to do.

[Brief explanation of drawings]

FIG. 1 is a front view, including a partial cross section, of a split ring of the present invention mounted on a rotary tool holder.

FIG. 2 is a perspective view of the split ring of the present invention.

FIG. 3 is a perspective view of a rotary tool provided with a split ring groove.

FIG. 4 is a front view, including a partial cross section, of the rotary tool being fitted into the nose ring and spring collet that have been removed from the rotary tool holder and before the split ring is attached.

FIG. 5 is a front view including a partial cross section in which the split ring is attached to FIG. 4;

FIG. 6 is a front view, including a partial cross section, of a conventional rotary tool fitted into a rotary tool holder.

[Explanation of symbols]

1 Rotary tool holder 2 Nose ring 3 Tool tightening nut 4 Spring collet 5 Rotating tools 6 groove 7 Split ring

Claims (1)

[Scope of utility model registration request] 1. A rotary tool holder characterized in that a groove is provided in the gripping portion of the rotary tool to prevent the rotary tool from coming off from the rotary tool holder, and a preventive device for preventing the rotary tool from coming off is fitted into the groove. Tool retaining device.