JPH0438332U

JPH0438332U -

Info

Publication number: JPH0438332U
Application number: JP8121190U
Authority: JP
Priority date: 1990-07-31
Filing date: 1990-07-31
Publication date: 1992-03-31
Anticipated expiration: 2005-07-31
Also published as: JPH081792Y2

Description

[Brief explanation of the drawing]

第１図は本考案の上側の水平案内面における支
持ローラ群を示す図、第２図は垂直荷重受けロー
ラ部の縦断面及び前倒れモーメント荷重受けロー
ラ部を示す図、第３図は横桁に主軸頭が懸架され
ている状態図、第４図は従来の垂直荷重用ローラ
部概略図、第５図は第４図のＢ−Ｂ線断面図、第
６図は第４図のＣ−Ｃ線断面図、第７図は横桁の
下側案内構造を示す図である。１……横桁、２……主軸頭、２１，４１……ロ
ーラ、２２，４２……ローラケース、２５，４３
……皿ばね、２６，４５……ジヤツキボルト、９
，３０……ジブ。 Figure 1 is a diagram showing the support roller group on the upper horizontal guide surface of the present invention, Figure 2 is a diagram showing the vertical cross section of the vertical load receiving roller part and the forward falling moment load receiving roller part, and Figure 3 is a cross section. 4 is a schematic diagram of a conventional vertical load roller section, FIG. 5 is a sectional view taken along line B-B in FIG. 4, and FIG. 6 is a cross-sectional view taken along line C-- in FIG. 4. A sectional view taken along the line C and FIG. 7 are diagrams showing the lower guide structure of the cross beam. 1... Cross beam, 2... Spindle head, 21, 41... Roller, 22, 42... Roller case, 25, 43
...Disc spring, 26,45...Jacket bolt, 9
,30...Jib.

Claims

[Scope of utility model registration request]

A roller member that rolls on the upper surface of the upper horizontal guide surface is pressed by a jack bolt via a spring member at several points in the movement direction of the spindle head side, which is suspended on the upper and lower horizontal guide surfaces protruding from the cross beam of the gate-type machining center. A jib is provided between the upper surface of the lower horizontal guide surface and the protrusion of the spindle head so as to be adjustable in and out from both sides of the movement direction, and the upper horizontal guide surface is provided at several locations in the spindle head side guide direction. A roller member that rolls on the back surface of the guide surface is provided via a spring member so that the pressing force can be adjusted with a jack bolt, and a jib is installed between the back surface of the upper horizontal guide surface and the protrusion of the spindle head from both sides in the direction of movement. roller members that roll on the front surface of the lower horizontal guide surface are provided at several locations in the direction of movement on the spindle head side so that the pressing force can be adjusted with jack bolts via spring members. A spindle head guide mechanism for a portal type machining center, characterized in that a jib is provided between the back surface and the spindle head protrusion so that the jib can be adjusted from both sides in the direction of movement.