JPS58150409U

JPS58150409U - Machine tool step feed device

Info

Publication number: JPS58150409U
Application number: JP4723982U
Authority: JP
Inventors: 東山　哲朗
Original assignee: トヨタ車体株式会社
Priority date: 1982-04-01
Filing date: 1982-04-01
Publication date: 1983-10-08

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面は本考案の実施例を示し、第１図は全体側面図、第
２図は第１図の■線に沿う矢視図、第３図はステップフ
ィード装置の要部を示す側面図、第４図は搬送つめとド
ッグとの係合を示す詳細図、第５図は、深穴加工時のド
リルの動きを示す説明図、第６図は油圧シリンダーを作
動させる油圧回路図である。１・・・・・・テーブル、２・・・・・・油圧シリンダ
ー、３・・・・・・ベッド、４・・・・・・保持枠、５
・・・・・・モータ、８・・・・・・ドリル、９・・・
・・・保持体、１２・・・・・・受は材、１３・・・□
・・・押え材、１５・・・・・・被加工物、１５ａ・・
・・・・深穴、１６・・・・・・ガイドレール、１７．
１７’・・・・・・ブラケット、２１・・・・・・搬送
つめ、２１ａ・・・・・・下辺、２１ｂ・・・・・・切
欠、２２・・・・・・近接スイッチ、２３・・・°・・
・戻しレバー。第５図第６図The drawings show an embodiment of the present invention; FIG. 1 is an overall side view, FIG. 2 is a view taken along the line ■ in FIG. 1, FIG. 3 is a side view showing the main parts of the step feed device, FIG. 4 is a detailed view showing the engagement between the conveying pawl and the dog, FIG. 5 is an explanatory view showing the movement of the drill during deep hole drilling, and FIG. 6 is a hydraulic circuit diagram for operating the hydraulic cylinder. 1...Table, 2...Hydraulic cylinder, 3...Bed, 4...Holding frame, 5
...Motor, 8...Drill, 9...
...Holding body, 12...Bake is material, 13...□
... Pressing material, 15 ... Workpiece, 15a ...
...Deep hole, 16...Guide rail, 17.
17'...Bracket, 21...Transportation pawl, 21a...Bottom side, 21b...Notch, 22...Proximity switch, 23.・・°・・
・Return lever. Figure 5 Figure 6

Claims

[Scope of utility model registration request]

When drilling a deep hole in a workpiece, the deep hole is machined step by step by repeatedly moving the drill forward and backward alternately, and by using machining feed when drilling a hole and fast forwarding when moving. In the step feed device for a machine tool, a table moves forward and backward by an actuator, a drill protrudes from a holding frame fixed to the table in parallel with the direction of movement of the table, and is rotatably held by a motor. A guide rail provided on a bed that holds the table in parallel with the table, a dog that freely moves along the guide rail, and a conveyor that is fixed to the table and transports the dog as the table moves forward. The jaw is fixed to the table slightly in front of the conveying pawl, and as the tip of the drill reaches just before the machining start end of each stage of the workpiece, the conveying pawl approaches just before the dog. a proximity switch that detects the dog and issues a signal and activates an actuator based on the signal to switch the drill from rapid feed to processing feed; and a proximity switch that moves the drill forward for a set time after the drill starts processing feed based on the signal to prevent time-up. The present invention is characterized by comprising a timer that issues a signal to switch the drill to rapid forwarding and move backward, and a return lever that protrudes from the table after machining is completed and moves the dog backward as the table moves backward. Machine tool step feed device.