JPS61125753A - Foothold for machine tool - Google Patents

Abstract

PURPOSE:To provide a foothold which can serve a comparatively tall large-sized machine tool by furnishing an upper-stage foothold, which is hollow and has a step in the lower part, and a lower-stage foothold to be fitted in said upper- stage foothold with possibility of expanding and shrinking. CONSTITUTION:A foothold 20 has an upper-stage foothold 24 having a pivot 22 in the upper part of the side of a vertical column 10 of a machine tool. A step 30 on which the operator can stand with his both feet is formed in a part in the lower part of this upper-stage foothold 24. A lower-stage foothold 32 is made in such a construction that it will stop in the position as drawn out by an appropriate stopper so as no to slip off from as hollow formed in the upper-stage foothold 24. Stable footholding is provided by furnishing an appropriate receiver table 14 below the vertical column 10 even in the condition in which the lower-stage foothold 32 is drawn off from the upper-stage foothold 24, because this receiver table bears the drawn lower-stage foothold 32 in tilting state.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a scaffolding device which is found in relatively tall machine tools, particularly machine tools having an upright column, and which is effectively used for assembly and maintenance of the machine tools. Technology Generally speaking, machine tools are installed on the floor of a machine shop, especially relatively tall machine tools where maintenance work on the spindle head, tool magazine, etc. cannot be easily reached even when the operator is in a standing position. In this case, methods such as setting up scaffolding on the floor or building corridor-like scaffolding by moving one machine around are conventionally taken. must be secured in advance. Additionally, methods such as using a commercially available stepladder are also adopted as needed.

The problem that we are trying to solve is that traditional scaffolding requires a lot of floor space,
Scaffold construction also has the disadvantage of increasing costs.

Furthermore, the method of using a stepladder for convenience lacks stability and therefore has the disadvantage of lacking safety. Therefore, the present invention eliminates the inconveniences associated with the installation of conventional machine tools, can be used in the assembly process of the machine tool itself, and can be conveniently used for maintenance work in machine shops. The purpose is to provide a scaffolding device for a machine tool that can be stored compactly on the side of the machine when not in use.

Solution Means and Effects According to the present invention, in order to solve the above-mentioned problems, there is provided a scaffolding device for a machine tool that is installed in a side space of an upright column installed on a base, a hollow upper scaffold whose upper end is pivotally connected and has a step below; and at least one lower scaffold which is telescopically mounted within the hollow upper scaffold and has a step below. and pedestal means for holding the lower scaffold in an inclined state when the lower scaffold is pulled out from the upper scaffold, When in use, the lower scaffold is pulled out from the upper scaffold and placed against the pedestal means, and when not in use, the lower scaffold is folded into the upper scaffold and stored in a container on the side of the upright column. It is. Hereinafter, the present invention will be explained in more detail based on embodiments shown in the accompanying drawings.

Fig. 1 is a side view showing an embodiment of the scaffolding device for machine tools according to the present invention, Fig. 2 is a front view of the scaffolding seen from the direction of the ■-■ arrow in Fig. 1, and Fig. 3 is the same scaffolding device. FIG. 3 is a side view of a machining center showing an example of the mounting position in the machine tool.

1 and 2, a scaffolding device 20 according to the invention is mounted on an upper side of an upright column 10 of a machine tool with a pivot 2.
2, the upper footing 24 having a side 11ilr of the upright column 10, as shown clearly in FIG.
Vc pusher 12, sleeve 26, f, 7.28, etc., mounted at a position spaced from the side by an appropriate distance, and passing through both the bushes 12.28, around a pivot 22;
DK is attached so that it can rotate. A step 30 is formed in a lower part of the upper scaffold 24 so that the worker can step on it with both feet, and in this embodiment, the step 30 is integrally provided at the lowest part of the upper scaffold 24.

The upper scaffold 24 has a hollow hole extending in its longitudinal direction, and the next scaffold 32 is attached to the hollow hole by a telescopic insert. Of course, the lower scaffold 32 is formed in such a structure that it can be stopped at the pulled out position by an appropriate force (not shown) K so that it does not fall out of the hollow hole of the upper scaffold 24. This lower scaffold 32 also has a step 34 at the bottom (in the illustrated example, at the bottom), and in this example, it is provided as the lowest step on which the worker first steps. In addition, in the illustrated example of FIG. 1 and FIG. 2, the scaffold is formed into a two-tiered structure, but depending on the height of the machine tool, a scaffold with the same structure as the lower scaffolding 32 may be placed in the middle to create a multi-tiered scaffold. may be formed. In that case, the intermediate scaffold itself may also be made hollow so that the lower scaffold can be accommodated in a telescoping manner.

Further, according to the present invention, when the lower scaffold 32 is pulled out from the upper scaffold, an appropriate pedestal 1 is placed below the upright column 10.
4 is provided, and the lower stage scaffold 32 pulled out is supported by this pedestal 14 in an inclined state. The reason for supporting the scaffold in this inclined manner is to ensure that when a worker stands on the scaffold, the horizontal component of his/her weight presses the scaffold against the machine 11 and brings it closer to the machine 11, thereby providing stable scaffold support. be. Note that the pedestal 14 is not limited to being provided on the upright column 10, and it goes without saying that it may be provided on the base of the machine if such a configuration is convenient.

Further, according to the present invention, when the lower scaffolding 32 is reduced and stored in the upper scaffolding 24, the scaffolding device 20 rotates around the pivot axis 22 as shown by the dotted line in FIG. It can be stored in the space on the side. For this reason, when the lower scaffold 32 is stored in the upper scaffold 24, the upper scaffold 24 is locked in advance with the lock pin 36.
An alignment hole 38 that penetrates from the side of 4 to the side of the lower scaffold 32
m.

38b may be formed in advance.

FIG. 3 shows a machining center as an example of a machine tool equipped with the above-mentioned scaffolding device 20. If the scaffolding device 20 with an appropriate number of stages of scaffolding 32 is provided on the side surface 101 of the upright column of this machining center, The scaffolding device 20 can be effectively used for assembly and adjustment work in the assembly process of machine tools, as well as grease injection, setup work, and other maintenance work in the process of installing and using a machining center at a machine site.

Effects of the Invention As is clear from the above explanation, the present invention provides a controller that can be attached to a relatively tall large machine tool and can be stored freely.
Since it provides an easy-to-use scaffolding device, stairs and concrete scaffolding that were previously required on the floor of the machine installation site,
It reduces the need for steel frame scaffolding, improves the effective use of floor space at the machine site, and eliminates instability factors by using stepladders, etc.

This makes it possible to ensure safety, and this has the advantage that it can be used not only for maintenance purposes when the machine is in use, but also during the assembly and adjustment stage of the machine.

[Brief explanation of drawings]

The first factor is a side view showing an embodiment of the scaffolding device for machine tools according to the present invention, FIG. 2 is a front view of the scaffolding device viewed from the ■-■ arrow direction in FIG. 1, and FIG. 3 is the same scaffolding. FIG. 2 is a side view of a machining center showing an example of clearly indicating the mounting position of a device on a machine tool. DESCRIPTION OF SYMBOLS 10... Upright column, 14... pedestal, 20... Scaffolding device, 22... Pivot, 24... Upper stage scaffolding, 30...
...Step, 32...Lower scaffolding, 34...Step. Figure 2

Claims (1)

[Scope of Claims] 1. A scaffolding device for a machine tool that is installed in a space on the side of an upright column erected on a base, the upper end of which is pivotally attached to the upper position of the side of the upright column, and a lower end of the upright column. a hollow upper scaffold having a step at the bottom; at least one lower scaffold telescopically installed within the hollow upper scaffold and having a step downward; and when the lower scaffold is pulled out from the upper scaffold. and pedestal means for holding the lower scaffold in an inclined state. 2. The scaffolding device for a machine tool according to claim 1, wherein each step of the upper scaffold and the lower scaffold is integrally formed as a projecting body. 3. The machine tool scaffolding device according to claim 1, further comprising a locking means for locking both the lower scaffold and the upper scaffold when the lower scaffold is pushed into the upper scaffold. 4. The scaffolding device for a machine tool according to claim 1, wherein the pedestal means is integrally formed with a lower part of the upright column or a part of the base.