JPH04122437U - cover door in machine tool - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent coolant from dripping, the door opens inward and avoids interference with the workpiece. [Configuration] The opening part on one side of the opening 3 is connected to the first door plate 4
a, the opening on the other side is closed by the second door plate 4b, and when opening, the second door plate 4b is run and overlapped with the first door plate 4a, and after overlapping, the first door plate 4a is closed.
Rotate it inside cover 2.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a cover door in a machine tool. More specifically, the door To avoid drops of coolant used inside the cover from falling when opening and closing. Regarding the door.

0002

[Conventional technology]

In recent years, machine tools have become highly productive, highly accurate, and highly rigid, resulting in high-speed cutting. , heavy cutting is being performed. For this reason, the cooler used for removing chips and cooling the cutting edge The amount of runt is on the rise. On the other hand, the environment in the factory where machine tools are installed is The situation is such that improvements can or should be made from the standpoint of occupational safety and health. machine tool Harmful gases may be generated during processing within the closed cover of the machine. Also, chips, External leakage of liquids, etc., is strictly regulated in order to improve safety and the factory environment. It is being controlled.

0003 In particular, when the door opens outward, coolant adhering to the door drips every time the door is opened. and contaminate the floor etc. To prevent coolant etc. from dripping from such doors. To accommodate this, conventional covers fold the bottom of the swing door inward to form a gutter. Furthermore, when the swinging door is closed, the door is formed between the swinging door and the fixed cover. To prevent coolant from leaking through the gap, a lip that covers this gap from above is installed. has been established.

0004 However, even with a door configured in this way, coolant may still leak out when the door is opened. The water drips down the outside of the swing door gutter, staining the floor. To prevent this, It is necessary to install a removable oil pan etc. at the dripping position. For this reason, the machine Problems such as poor accessibility to the equipment, complicating inspection and maintenance, and hindering work efficiency. had.

[0005] By the way, if the door is an inward-opening type that swings toward the inside of the cover, the cooler No runt drips onto the floor. However, in this case, the door is closed inside the cover. This will interfere with the table, workpiece, etc., so if you try to avoid this, the cover will be too large. There was a problem that it became formalized.

[0006]

[Problem that the idea aims to solve]

This invention was made based on the conventional technical background as mentioned above, It aims to achieve the following objectives:

[0007] The purpose of this invention is to allow the door to open inward to prevent coolant from dripping. To provide a door that can avoid interference between the door and a workpiece while preventing It's there.

[0008]

[Means to achieve the task]

This invention employs the following means to achieve the above object.

[0009] In other words, this invention is a device that can be installed in the working opening provided in the cover of the machine tool. a door provided on one side of the opening for opening and closing the door; a first door plate that is swingable toward the inside of the cover; and an opening on the other side of the opening. A door is provided at the opening to open and close the opening, and runs parallel to the door surface of the first door plate. a second door plate that is flexible and can be stacked on the first door plate; A guide member is provided for guiding the second door plate without interfering with the swinging of the door plate. It is located on the cover door of the machine tool that is used.

0010 The guide member is arranged at the opening portion that is opened and closed by the second door plate. a first guide member provided on the cover for guiding the second door plate; For guiding the second door plate at the overlapping portion of the door plate and the second door plate. and a second guide member provided on the first door plate.

[0011]

[Effect]

The opening on one side is connected to the first door plate, and the opening on the other side is connected to the second door plate. Closed by door plate. To open the door, move the second door plate and The first door plate is overlapped with the door plate, and after the overlap, the first door plate is rotated to the inside of the cover.

0012

【Example】

An embodiment of this invention will be described below with reference to the drawings. Figure 1 shows this idea. It is a front view showing a door. Figures 2 and 3 correspond to the II-II line and III-III line in Figure 1, respectively. FIG. Mounting frame 1 is for attaching the door to the cover. , forms part of a cover 2 (see FIG. 3) that covers a machine tool (not shown). Installation A rectangular opening 3 is formed in the frame 1, and a door 4 is attached to this opening 3.

[0013] The door 4 has a first door plate 4a and a second door plate 4b. First door plate 4a is for opening and closing approximately half of the opening 3, and the second door plate 4b is for opening and closing the remaining half of the opening 3. belongs to. The first door plate 4a consists of a front plate 5 and a back plate 6 (see Fig. 2). , both plates 5 and 6 are fixed to each other at their peripheral edges by bolts 7, and have a second plate inside. A space 8 is formed to accommodate the two-door plate 4b. That is, the first door 4 The a plate also serves as a door pocket for the second door plate 4b. The flap provided at the bottom of the mounting frame 1 The portion 1a covers the lower portions of the first and second door plates 4a and 4b, and is unrelated to opening and closing of the door 4. This is to prevent coolant from dripping from the gap at the bottom of the door.

[0014] At the top of the back plate 6 of the first door plate 4a, there is a tension plate extending horizontally toward the edge of the opening 3. A protrusion 20 is formed. The first door plate 4a has a free overhang 20 extending from its end. Towards the end, there is an upper guide rail 9 with a U-shaped cross section for guiding the second door plate 4b. Fixed in horizontal orientation. The first door plate 4a has a hinge 10 at its end. The first door plate 4a is pivoted to the mounting frame 1, that is, the cover 2, through the It can be freely swung in any direction.

[0015] At the position where the first door plate 4a coincides with the surface of the opening 3, the first door plate 4a is connected to the hinge side of the front plate 5. The opposite end surface contacts the cover 2 and prevents the cover 2 from rotating outward (see Figure 3). ), therefore, the first door plate 4a can only swing toward the inside of the cover 2. It has become. The second door plate 4b is made of one plate, and a roller 1 is attached to the upper part of the back side of the second door plate 4b. 2 is provided. This roller 12 is engaged with the upper guide rail 9 so as to be freely movable. ing.

[0016] A second door plate is placed below the protruding portion 9a of the upper guide rail 9 from the first door plate 4a. A first lower guide rail 13 is arranged for guiding 4b. This first lower part The guide rail 13 is fixed to the lower edge of the mounting frame 1. On the other hand, the second door plate 4b A slider 14 is provided at the lower part of the slider 14, and this slider 14 engages with the first lower guide rail 13. They are free to join and leave.

[0017] Furthermore, there is a mark at the bottom of the first door plate 4a when the first door plate 4a swings toward the mounting frame 1. and the second lower guide rail 13 is positioned on the extension line of the first lower guide rail 13. 15 is fixed. That is, the first lower guide rail 13 and the second lower guide rail The loop 15 is cut in the middle and is discontinuous. This second lower guide rail A slider 14 of the second door plate 4b can be engaged with and detached from the slider 15. 2nd door The plate 4b is guided by the upper guide rail 12 and the first and second lower guide rails 13 and 15. and moves parallel to the door surface of the first door plate 4a, approximately half of the opening 3 (right side in FIG. 1) Open and close.

[0018] The second door plate 4b is overlapped with the first door plate 4a when it is in its fully open position. and is stored in the space 8, and at this time the slider 14 is separated from the first lower guide rail 13. As a result, only the second lower guide rail 15 is engaged. That is, in this example are the protruding portion 9a of the upper guide rail 9 from the first door plate 4a and the first lower plan. The inner rail 13 is connected to the second door at the opening portion opened and closed by the second door plate 4b. It forms a first guide member for guiding the plate 4b. Also, the upper guide rail 9 Of these, the joint portion 9b to the first door plate 4a and the second lower guide rail 15 are the first, A second guide part for guiding the second door plate 4b in the overlapping part of the second door plate forming the material.

[0019] motion To open the door 4, first hold the second door plate 4b by the handle 21 and move it horizontally ( (to the left in Figure 1). Then, the second door plate 4b engages with the upper guide rail 9. However, it detaches from the first lower guide rail 13 and moves to the second lower guide rail 1. 5 and is housed in the space 8 of the first door plate 4a. In this state, opening 3 is This means that approximately half of the area is open. Next, turn the first door plate 4a toward the inside of the cover 2. When rotated, the entire opening 3 will be opened. Further, the second door plate 4b is When the first door plate 4a is not detached from the first lower guide rail 13, the first door plate 4a cannot be rotated. I can't do it.

[0020] The rotation locus of the door 4 is, as shown by A in FIG. 3, only the first door plate 4a. Therefore, the radius of rotation is relatively small. Therefore, the door and cover - Interference with the workpiece and table inside 2 can be avoided. Additionally, an upper guide rail 9 is provided. Since the overhanging portion 20 is located at the upper part of the first door plate 4a, the overhanging portion 20 0 will not interfere with the work or table. Closing opening 3 by door 4 In this case, you can perform the opposite operation to the above.

[0021] [Modified example] In the above embodiment, the upper guide rail 9 was composed of one rail, but the lower guide rail 9 As in the case of rails 13 and 15, it consists of two rails located on the same straight line with each other. It's okay.

[0022]

[Effect of the idea]

As detailed above, according to this invention, two door plates that can be stacked on top of each other The door is made up of This prevents coolant from dripping when opening and closing the door, and also prevents the coolant from dripping when opening and closing the door. The turning radius of the door is reduced by making it impossible to swing unless it is screwed together. Therefore, interference with the workpiece etc. can be avoided.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of a door in a machine tool according to this invention.

FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1;

FIG. 3 is a cross-sectional view taken along line III-III in FIG. 1;

[Explanation of symbols]

1...Mounting frame, 2...Cover, 3...Opening, 4...Door, 4a...
1st door plate, 4b...2nd door plate, 9...upper guide rail,
10... Hinge, 12... Roller, 13... First lower guide rail, 14... Slider, 15... Second lower guide rail

Claims (2)

[Scope of utility model registration request] 1. A door that is attached to a working opening provided in a cover of a machine tool, wherein the door is provided in an opening portion on one side of the opening for opening and closing the door, and is directed toward the inside of the cover. a first door plate that is swingable; and a first door plate that is provided at an opening portion on the other side of the opening for opening and closing the door plate, and that is movable in parallel with the door surface of the first door plate; a second door plate that can be freely stacked on the plate; and the first door plate.
A cover door for a machine tool, comprising a guide member for guiding the second door plate without interfering with swinging of the door plate. 2. In claim 1, the guide member includes a first guide member provided on the cover for guiding the second door plate in the opening portion opened and closed by the second door plate; A cover door for a machine tool comprising a second guide member provided on the first door plate to guide the second door plate in an overlapping portion of the first door plate and the second door plate.