JPH08150538A - Cover attaching device for machine tool - Google Patents

Abstract

PURPOSE: To surely attach even a large heavy cover to a cover attaching part of a machine tool, and facilitate attaching/detaching. CONSTITUTION: By engaging the upper part of a cover 2 with a spring member 11 on the side of a machine tool 1, and joining the lower part to a magnet 12 on the side of the machine tool 1, the weight of the cover 2 is positively supported by the spring member 11 and a cover-receiving face 10, and the cover 2 can be positively and stably attached attractive force of the magnet 12. Thus, the cover 2 can be easily attached and detached only by sliding the upper end part of the cover 2 in the direction in which the cover is attached.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover mounting device for a machine tool, and more particularly to a cover mounting structure that can be easily removed during maintenance or inspection.

[0002]

2. Description of the Related Art For a surface cover of a machine tool, which protects a portion that needs frequent inspection, the cover must be easily attached and detached without using a tool. Conventionally, for example, a cover mounting structure as shown in FIG. 3 has been used. That is, a hooking portion 22 that is directed downward is formed inside the lower end of the cover 21, and the hooking portion 22 is hooked on the cover support metal fitting 24 that is projected forward in the lower portion of the cover attaching portion 23 on the machine side. The upper portion of the cover 21 was attached to the magnet 25 provided on the machine side by attracting the magnet 25 on a vertical surface.

[0003]

However, most of the covers of this kind are made of iron and are heavy. Therefore, in the case where the magnet 25 like the above-mentioned conventional one has the upper portion of the cover 21 attracted by a vertical surface, the magnet 25 is covered. Twenty-one weights were all over. With such a structure that the cover 21 can be easily removed while supporting the weight of the cover 21,
Due to the weight and deformation of the magnet 25, the dirt of the magnet 25 itself, and the like, the attracting force of the magnet 25 on the cover 21 is weakened, and the magnet 25 easily comes off.

Therefore, an object of the present invention is to provide a cover attaching device which can attach a large and heavy cover to the wall surface of a machine with good adhesion and can be easily attached and detached.

[0005]

That is, according to the present invention, the upper end of the cover is engaged with the spring member on the machine side, and the lower end is joined to the magnet on the machine side. The weight of the cover is securely supported, the cover can be securely and stably attached without affecting the attractive force of the magnet, and it is easy to attach and remove.

[0006]

When the cover is attached, when the horizontal upper portion of the cover is inserted into the spring member along the guide member, the bent portion of the spring member is pushed down by the end portion of the cover, and the engaging hole of the cover faces there. The bent portion of the spring member elastically fits into the engagement hole due to the restoring force. At the same time, the upper end horizontal portion overlaps the cover receiving surface, and the spring member and the cover receiving surface support the entire weight of the cover, and moreover, the cover is securely hooked. In this state, the lower end of the cover is attracted and fixed by the magnet on the machine side.

When removing the cover, if the cover is pulled toward the front against the attractive force of the magnet, the cover slides the guide member from the cover receiving surface and the spring member is pushed down by the edge of the engaging hole, so that the cover is simple. Be drawn to. As described above, the cover can be easily removed by slightly sliding the upper part of the cover, and the mounting stability at the upper end of the cover, which is heavy, is sufficient.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a sectional view showing a state in which a cover is attached, and FIG. 2 is a front view of the cover attaching device.
In FIG. 1, a cover mounting portion 1a on the surface of the machine tool 1
On the other hand, the cover 2 is detachably attached in a vertical state. An upper end horizontal portion 3 is formed at the upper end of the cover 2 by being bent horizontally toward the inside, that is, the mounting side, and a lower end is a lower end horizontal portion 4 and a lower end vertical portion that are bent inward toward the inside. 5 is formed. In addition, one or a plurality of rectangular engaging holes 3a are formed in the upper horizontal portion 3 so as to correspond to a spring member 11 described later.

A cover mounting member 6 is fixed to the cover mounting portion 1a at one location or at a plurality of locations with bolts or the like. In addition, a guide member 9 is fixed to the cover mounting portion 1a together with the mounting bracket 6. As shown in FIG. 2, the guide member 9 is provided on the left and right sides of the mounting member 6 with the upper horizontal portion 3 of the upper end of the cover 2 interposed therebetween.
An upper guide 7 and a lower guide 8 for slidingly guiding the vehicle at the cover mounting height position are formed so as to project forward.

The mounting bracket 6 is integrally formed with a cover receiving surface 10 formed by horizontally bending the upper surface in accordance with the cover mounting height, and the tip is directed forward in the upper center and the intermediate portion is mounted in the intermediate section. A spring member 11 having a bent portion 11a that protrudes above the cover mounting height.
Are integrally formed. The tip of the spring member 11 is inclined obliquely downward from the cover mounting height, and the bent portion 1
1a has a shape that can be elastically fitted into an engagement hole 3a formed in the cover 2.

The lower guide 8 of the guide member 9 is projected forward of the cover receiving surface 10 and the spring member 11,
The cover 2 is formed to be shorter than the depth dimension of the upper horizontal portion 3 and the upper surface thereof is adjusted to the cover mounting height similarly to the cover receiving surface 10 and also serves as a cover receiving surface. A taper surface 8a for guiding the cover insertion is formed on the upper portion of the front end of the lower guide 8. And
Corresponding to the lower guide 8, an upper guide 7 is provided above the lower guide 8 with a space slightly larger than the thickness of the cover 2, and a tapered surface 7a for guiding the cover insertion is provided at the lower front end of the upper guide 7. Has been formed.

Further, magnets 12 are attached to the cover attaching portion 1a at one or a plurality of locations at a lower position with the attracting surface of the magnet 12 facing the front.
When mounting the cover 2, the magnet 12
The lower end vertical portion 5 of the cover 2 is opposed to and bonded to the suction surface of.

Next, a method of attaching and detaching the cover 2 will be described.

As shown by a chain double-dashed line 2'in FIG. 1, when the upper horizontal part 3 of the cover 2 is inserted between the lower guide 8 and the upper guide 7 with the cover 2 in a substantially mounted posture, the edge of the upper horizontal part 3 is cut. The bent portion 11a of the spring member 11 is indicated by the chain double-dashed line 1 in FIG.
It is elastically depressed as indicated by 1 '. After that, when the engagement hole 3a of the cover 2 is opposed to the bent portion 11a, the bent portion 11a is moved by the restoring force of the spring member 11.
Elastically fit into. With this movement, the upper horizontal portion 3 of the cover 2 is pulled toward the machine 1 side, overlaps the cover receiving surface 10 and is held at the regular mounting position as shown by the solid line in FIG. At the same time, the lower end vertical portion 5 of the cover 2 is attracted to the magnet 12 and the mounting is completed. At this time,
The weight of the cover 2 is supported by the spring member 11, the cover receiving surface 10 and the lower guide 8 at the upper end, and the lower magnet 12 is pressed by the cover 2 itself with the cover receiving surface 10 as a fulcrum. With a high suction force, a stable wearing state can be obtained.

The cover 2 is used for maintenance and inspection of the machine tool 1.
When removing the cover, the operator may attach the cover 2 to the handle 2 for example.
The lower end of the cover 2 is disengaged from the magnet 12 and the upper end of the cover 2 is pushed down by the edge of the engaging hole 3a while pushing down the bent portion 11a of the spring member 11 by simply pulling the spring member 11a forward.
Then, it is easily removed by sliding between the upper and lower guides 7 and 8.

[0017]

According to the present invention, the weight of the cover is reduced by the spring member and the cover receiving surface by engaging the upper end of the cover with the spring member on the machine side and joining the lower end to the magnet on the machine side. The cover can be securely supported and hooked, and the cover can be reliably and stably attached by the attractive force of the magnet. Also, since the cover can be easily attached and detached by sliding the upper end of the cover in the attaching direction, it has good workability and can be applied to any place.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a cover attaching device of the present invention in a state where a cover is attached.

2 is a front view of the cover attaching device of FIG. 1. FIG.

FIG. 3 is a cross-sectional view showing a conventional cover mounting device.

[Explanation of symbols]

 1 machine tool 1a cover mounting part 2 cover 3 upper end horizontal part 3a engaging hole 9 guide member 10 cover receiving surface 11 spring member 11a bent part 12 magnet

Claims (2)

[Claims] 1. A cover mounting device in which a cover is mounted vertically on a surface of a machine tool, wherein a horizontal cover receiving surface for receiving a horizontal upper end portion of the cover is formed at a position above the cover mounting portion of the machine tool, and a tip is provided. A spring member having a bent portion protruding upward from the cover receiving surface is fixed to an intermediate portion toward the front, a magnet is fixed to a lower position of the cover mounting portion, and the spring is attached to a horizontal upper portion of the cover. An engaging hole is formed in which a bent portion of the member is engaged, the upper end of the cover is supported by the spring member and the cover receiving surface, and the lower end is joined to the magnet so that the cover is detachably attached to the cover mounting portion. A machine tool cover mounting device characterized by being mounted. 2. The cover attachment of a machine tool according to claim 1, wherein the cover attachment portion of the machine tool is provided with a guide member for slidingly guiding the upper end horizontal portion of the cover at the attachment height position of the cover. apparatus.