JPS6025U - Spindle holding mechanism of tapping drilling machine - Google Patents

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来に見られるタッピングボール盤の主軸保持
機構を示す縦断面図、第２図は第１図のＩ−Ｉ断面図で
ある。第３図は本考案になる同機構を示す縦断面図であ
る。第４図、第５図は本考案の変形例を示す縦断面図で
ある。 図において、２は主軸、３は保持筒、４はラック、５は
ピニオン、６はピニオン軸、８はハンドルボス、９はハ
ンドル、１０は軸受である。FIG. 1 is a longitudinal cross-sectional view showing a main shaft holding mechanism of a conventional tapping drilling machine, and FIG. 2 is a cross-sectional view taken along the line II in FIG. FIG. 3 is a longitudinal sectional view showing the same mechanism according to the present invention. 4 and 5 are longitudinal sectional views showing a modification of the present invention. In the figure, 2 is a main shaft, 3 is a holding cylinder, 4 is a rack, 5 is a pinion, 6 is a pinion shaft, 8 is a handle boss, 9 is a handle, and 10 is a bearing.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 主軸を保持する保持筒にラックを構成し、ラックにピニ
オンを係合してピニオン軸をハンドルを装着したハンド
ルボスを介して回転させ主軸を下降せしめるタッピング
ボール盤において、主軸又は主軸軸受に主軸及び主軸先
端に取付けるチャック、タップなどの重量を支える圧縮
バネを保持筒内に配し、主軸の軸受を保持筒の上方およ
び下方に装着し、前記軸受に主軸又は軸受と保持筒が自
由に上下方向に滑動できるようにしたタッピングボール
盤の主軸保持機構。In a tapping drilling machine in which a rack is configured in a holding cylinder that holds the main shaft, a pinion is engaged with the rack, the pinion shaft is rotated via a handle boss equipped with a handle, and the main shaft is lowered. A compression spring that supports the weight of the chuck, tap, etc. attached to the tip is placed inside the holding cylinder, and bearings for the main shaft are installed above and below the holding cylinder, so that the main shaft or the bearing and the holding cylinder can freely move up and down in the bearings. A sliding main shaft holding mechanism for a tapping drilling machine.