JP3103602U - Machine Tools - Google Patents

Abstract

An object of the present invention is to provide a machine tool that allows an operator to easily confirm a processing state and to efficiently replace a window even if the window is damaged.
A guard is provided to cover the periphery of a machine tool. The guard has a window for viewing the machined part of the machine tool. The window (20) is composed of a plurality of window portions (20a, 20b, 20c, 20d, 20e, 20f) arranged vertically. The upper window portion is wider than the lower window portion. The length of the plurality of window portions (20a, 20b, 20c, 20d, 20e, 20f) in the up-down direction is gradually increased gradually from the lower side to the upper side, and the plurality of window portions (20a, 20b, 20c, 20d, 20e, 20f) have the same horizontal dimension.
[Selection] Figure 2

Description

  The present invention relates to a machine tool having a guard for covering a machined portion of a machine tool main body, and the guard having a window for visually recognizing the machined portion of the machine tool body.

  A guard (safety guard) provided in a processing part of a machine tool is for preventing a rotating tool or a workpiece from jumping out and hitting an operator or scattering around.

  It is known that a guard is provided with a window in order for an operator to check the processing status.

  A window made of tempered glass is provided to make it easier to see the machined part inside the safety guard. Then, in the guard, it is possible to easily confirm that the workpiece is processed as desired by the rotating tool.

Patent Literature 1 discloses a machine tool having a cover as an example of a guard.
Japanese Patent Application No. 2003-327644

  In a conventional guard, one large-sized window is provided, or a plurality of small-sized windows are provided side by side.

  In the case of a single window guard, there is a disadvantage that the strength is low.

  In the case of a guard in which a plurality of windows are arranged side by side, a frame existing around each window improves the strength, but there is a drawback that the frame interferes and makes it difficult to see the processed portion from the window.

  Therefore, an object of the present invention is to provide a machine tool that allows an operator to easily confirm the state of machining in a machining section of the machine tool from a window and to secure required strength.

  Examples of the solution of the present invention are as follows.

  (1) In a machine tool provided with a guard for covering the machined part of the machine tool body and the guard having a window for visually recognizing the machined part of the machine tool body, the window (20) is made of one piece of transparent glass. A plurality of window portions (20a, 20b, 20c, 20d, 20e, 20f) are vertically and horizontally divided and arranged with respect to the single glass by a lattice-shaped frame (17). A machine tool characterized in that the vertical dimension of a window portion is wider in an upper window portion than in a lower window portion when compared between two adjacent window portions.

  (2) The lowermost window portion (20f) is a horizontally long rectangle, the uppermost window portion (20a) is a vertically long rectangle, and the uppermost window portion has a vertical length. Is longer than twice the length in the left-right direction, and the length of the lowermost window portion in the vertical direction is less than half the length in the left-right direction. Machine tools.

  (3) The length of the plurality of window portions (20a, 20b, 20c, 20d, 20e, 20f) in the up-down direction is gradually increased gradually from the lower side to the upper side, and the plurality of window portions (20a, 20b, 20c) are increased. , 20d, 20e, and 20f) have the same horizontal dimension.

  ADVANTAGE OF THE INVENTION According to this invention, an operator can easily confirm the state of a process, and also can easily visually recognize the process part of a machine tool from a window.

  Since one glass and a lattice-shaped frame are combined, it is possible to increase the strength and prevent the glass from being cracked or damaged. As a result, the safety at the time of the operation of the operator is improved.

  A plurality of window portions are provided for one piece of glass, and the length of the upper window portion in the vertical direction is longer than the length of the lower window portion in the vertical direction as going upward. With the structure described in 2 or 3, the operator can more easily check the processing status.

  According to the present invention, since the upper window portion is wide, even if a frame exists in the horizontal direction, the operator can easily confirm the processing portion of the machine tool from the upper window portion. On the other hand, there is a frame in the horizontal direction, and the lower window portion is narrow, but the lower window portion is located at a level close to the processed portion, so that the frame does not easily interfere with visual recognition.

  By devising the opening width of multiple windows, narrowing the vertical dimension of the lower window part, which has a high ratio of projecting workpieces, increasing the strength of the window and increasing the ratio of the The vertical dimension of the lower upper window portion is widened to enhance the visibility from the outside.

  It is preferred that each window portion is configured to be substantially rectangular (especially a rectangle), and that many window portions are arranged in a grid.

  The length of the uppermost window portion in the vertical direction is maximized, and the length of the lowermost window portion in the vertical direction is minimized.

 It is preferable that the length of the upper window portion in the vertical direction is slightly longer than the length of the adjacent lower window portion in the vertical direction. However, the upper and lower window portions may have the same vertical length, and the lower window portion may have the same vertical length, and the above relationship may be established between them. Good.

  It is preferable that the length (dimension) of the window portion in the vertical direction is gradually increased from the lower side to the upper side. For example, it is preferable that the window portion is sequentially elongated from a lower side to an upper side at a constant rate.

  In the embodiment described below, the window has six vertically arranged window portions. However, the number of windows may be less than six or seven or more. The window portion can be changed to a shape other than a rectangle.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view showing a preferred embodiment of the present invention. FIG. 2 is a side view of FIG.

  The machine tool 1 is provided with a main shaft 6 in a processing portion of a main body, and processes a workpiece 10 by a rotary tool 8 provided at a tip thereof.

  A safety guard 12 is provided in a processing section of the machine tool 1.

  The safety guard 12 covers the front surface and both side surfaces of the machined portion of the machine tool 1 and prevents the rotating tool 8 and the workpiece 10 from jumping out and hitting an operator or scattering around.

  The safety guard 12 has a fixed wall 14 and a sliding door 16.

  The fixed wall 14 is fixed to a frame 18 of the machine tool 1.

  The fixed wall 14 is provided with a plurality of, for example, four slide doors 16. Each sliding door 16 is made of one piece of glass, for example, a transparent glass made of reinforced plastic. Each of the slide doors 16 has a pull 16a at a side end thereof, and can be slid in a lateral direction by using the pull 16a. By closing the slide door 16, the processing part of the machine tool 1 can be shielded from the outside, and by opening the slide door 16, the processing part of the machine tool 1 can be accessed from the outside.

  In the center area of each slide door 16, one sheet of transparent glass is arranged, and a lattice-like frame 17 is provided for it. The lattice-shaped frame 17 forms a window 20 for visually recognizing a processed part of the machine tool. The fixed walls 14 on both sides of the machine tool 1 are also provided with a lattice-shaped frame 17 and windows 20.

  One window 20 is made of one piece of glass, and includes six vertically arranged window portions 20a, 20b, 20c, 20d, 20e, and 20f. At each level of the window portions 20a to 20f, three window portions are arranged in the horizontal direction, and one window 20 is configured as a whole.

  The uppermost window portion 20a is set near the eye level of the worker. This is because the operator often checks the processing status from the upper window portion. The lowermost window portion 20f is set near the workpiece 10. This is particularly for the case where the workpiece 10 is to be checked up close.

  The lowermost window portion (20f) is a horizontally long rectangle, the uppermost window portion (20a) is a vertically long rectangle, and the uppermost window portion has a vertical length in the horizontal direction. The length of the lowermost window portion in the vertical direction is less than half the length in the horizontal direction.

  In short, the length (dimension) in the vertical direction of the upper window portion having a low risk of the workpiece or the like protruding is increased, and the lower window portion having a high risk of the workpiece or the like protruding is reduced.

  In the window portions 20a to 20f adjacent to each other, the upper window portion is wider than the lower window portion. That is, in the illustrated embodiment, the window portions 20a to 20f are substantially rectangular, and the vertical length of the upper window portion is longer than the vertical length of the lower window portion. As a result, the window portion is gradually increased from the lower side to the upper side.

  Specifically, the window portion 20a is wider than the window portion 20b, the window portion 20b is wider than the window portion 20c, the window portion 20c is wider than the window portion 20d, the window portion 20d is wider than the window portion 20e, Portion 20e is wider than window portion 20f.

  In the illustrated embodiment, the horizontal lengths (widths) of all the window portions 20a to 20f are the same.

  According to such a configuration, since the upper window portion 20a and the like are wide, even if the frame 17 exists in the horizontal direction, the worker can stand up from the upper window portion 20a and the like at eye level. The machined part of the machine tool can be easily confirmed. On the other hand, the frame 17 exists in the horizontal direction, and the lower window portion 20f and the like are narrow, but the lower window portion is located at a level close to the processing portion. Less likely to interfere with viewing.

  Note that the present invention is not limited to the illustrated embodiment. The shape of the window, the number of window portions, and the arrangement are arbitrary. The window may have two or less window portions in the horizontal direction, or may have four or more window portions.

1 is a front view of a preferred embodiment of a machine tool according to the present invention. FIG. 2 is a side view of FIG. 1.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Machine tool 6 Main shaft 8 Rotary tool 10 Workpiece 12 Safety guard 14 Fixed wall 16 Slide door 16a Puller 17 Grid frame 18 Frame 20 Windows 20a, 20b, 20c, 20d, 20e, 20f Window portion

Claims (3)

  In a machine tool provided with a guard for covering the machined part of the machine tool body and the guard having a window for visually recognizing the machined part of the machine tool body, the window (20) is made of one piece of transparent glass. A plurality of window portions (20a, 20b, 20c, 20d, 20e, and 20f) are divided and arranged by a lattice-shaped frame (17) with respect to the one piece of glass. The machine tool according to claim 1, wherein an upper window portion is wider than a lower window portion when compared with two adjacent window portions.   The lowermost window portion (20f) is a horizontally long rectangle, the uppermost window portion (20a) is a vertically long rectangle, and the uppermost window portion has a vertical length in the horizontal direction. The length of the lowermost window portion is less than half the length in the left-right direction of the lowermost window portion. The described machine tool. The length of the plurality of window portions (20a, 20b, 20c, 20d, 20e, 20f) in the up-down direction is gradually increased gradually from the lower side to the upper side, and the plurality of window portions (20a, 20b, 20c, 20d, 3. The machine tool according to claim 1, wherein the left and right dimensions of 20e and 20f) are the same.

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