JPH05329739A - Cover device of lathe - Google Patents

Abstract

PURPOSE:To provide a cover device excellent in visibility and operativity of an operation box, with the operation box not interfering with maintenance and inspection, compact and capable of preventing leakage of machining liquid and others. CONSTITUTION:A working door and a maintenance inspection door 13 are provided on the front surface of a cover of a lathe free to slide open and close by common rails 4, 8. A recessed part 31 is formed on a part of the maintenance inspection door 13, and it supports an operation box 35 free to revolve around a support shaft erected on the side of its bottom surface working door. The support shaft 34 is formed of a pipe material, and a signal cable of the operation box 35 is pulled out of the door from its upper end part through the inside of the maintenance inspection door 13. The working door and the maintenance inspection door 13 are furnished with L sections projected outward, and a machining liquid tank 5 is arranged between the lower rail 4 and a base 2 of the lathe. The lower edge of the reversally inclined outer surface of the maintenance inspection door 13 is led to the inside of a front side wall 22 of the machining liquid tank 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a cover device for covering a machine body of a lathe, and more particularly to a cover device characterized by a mounting position and a structure of an operation box.

[0002]

2. Description of the Related Art It is common practice to provide a cover on the machine body of a lathe in order to ensure the safety of workers and prevent the scattering of cutting fluid and chips. The structure must cover the front of the body. This cover must be provided with a work door that opens and closes the work processing area of the lathe for attachment and detachment of work, and a semi-fixed maintenance and inspection door must be provided for convenience of maintenance and inspection. There are also many.

Normally, the work door and the maintenance / inspection door are provided so as to be movable in the lateral direction. Further, the operation box is preferably provided near the work door on the front of the cover, and in many cases, it is desired to be provided at the position of the maintenance / inspection door mounted in a sliding door type.

Conventionally, as a structure for mounting an operation box, there are a structure in which the operation box is supported by a cover and a structure in which the operation box is suspended at the tip of a duct supported in a cantilever shape on the upper part of the cover. Used favorably. In the former structure, when the corresponding part of the cover is the maintenance / inspection door, the operation box is fixedly provided on the maintenance / inspection door, and the latter structure is provided in the upper front of the maintenance / inspection door.

[0005]

In the device in which the operation box is mounted on the cover, the direction of the display panel or the operation panel of the operation box cannot be oriented in any direction according to the working state. When operating the operation box while doing work, it is almost impossible for the operator to see the display panel or the operation panel. There was the inconvenience of having to move before.

On the other hand, in the structure in which the operation box is suspended by the duct, it is possible to change the direction of the operation box, but the operation box is located in a state of being projected further forward of the cover. Since the operation box is attached to the tip of the cantilevered duct, it is necessary to support the duct with sufficient strength, which makes the device expensive, and the operation box interferes even when the maintenance door is open. There is a problem of becoming.

Further, the door of the conventional cover device is supported by a lower rail provided at the upper front end of the base of the machine body and an upper rail mounted above the machine body. The cutting fluid that oozes out of the door travels along the outer surface of the cover and leaks to the floor surface. Was causing the problem.

The present invention has been made in order to solve the above problems and is excellent in the visibility and operability of the operation box in any working condition, and the operation box does not interfere with maintenance and inspection, and is compact. It is an object of the present invention to obtain a cover device which is excellent in appearance and can prevent leakage of cutting fluid.

[0009]

On the front surface of a cover of a lathe, there are a work door 12 for opening the work area and a maintenance / inspection door 13 for mainly opening the maintenance / inspection area.
It is provided so as to be openable and closable in a sliding door type that moves laterally along the rails 4 and 8 common to the rails 13. A recess 31 is formed in a part of the maintenance / inspection door 13, and a vertical support shaft 34 is arranged on the bottom work door side of the recess, and an operation box 35 is rotatably provided around the support shaft 34. It is supported.

The support shaft 34 is formed of a pipe material that opens inside the maintenance / inspection door 13, and the signal cable of the operation box 35 is pulled out to the inside of the maintenance / inspection door 13 through the hollow hole of the support shaft 34. Further, it is guided upward along the wall surface of the maintenance / inspection door 13 and pulled out from the upper end side of the maintenance / inspection door 13 to the outside of the door.

The work door 12 and the maintenance / inspection door 13 have a dogleg-shaped cross section protruding outward and are supported by a lower rail 4 and an upper rail 8. The lower rail 4 is a base of a lathe. The cutting fluid tank 5 is arranged in the front part with a space between the cutting liquid tank 2 and the space. Door 12,
The lower edge 19 of the reversely inclined outer surface of 13 is located inside the upper end of the front side wall 22 of the cutting fluid tank 5 or the lower end 1
9 is positioned inside the upper end of the lower edge cover 20 which is located inside the upper end of the front side wall 22 of the cutting fluid tank 5. A cover 26 is provided in the groove 8 that is formed in the upper rail 8 and faces upward.
To provide.

The operation box 35 has a shape in which the side face is bent in an inverted V shape in the middle of the front surface, the upper part is a display panel 40 on which a display device 38 is arranged, and the lower part is arranged with operation switches. The operation panel 41 is used.

[0013]

The operation box 3 of the cover device configured as described above
When the display panel 40 and the operation panel 41 are turned to the operator side when rotated around the support shaft 34,
Since they rotate so as to project further to the front side than the cover, the worker can easily visually recognize the displayed items by opening the work door 12 and putting a body inside the work door 12.
In addition, it becomes possible to operate while visually checking the operation switches. Further, when the operation box 35 is rotated to the opposite side, at least the rear part of the operation box 35 is at the maintenance / inspection door 13.
Since the display panel 40 and the operation panel 41 face to the front in the recessed portion 31 of the operation box 31, the display items on the operation box 35 can be removed from the machine during the steady operation performed with the work door 12 closed. It is easy to see and the entire device is compact.

When the front surface of the operation box is an inclined surface in which the display panel 40 faces the front and the operation panel 41 faces slightly upward, ergonomics can be realized in both visual confirmation of display items and operation of operation switches. It is also excellent in aesthetics because it conforms to the shapes of the doors 12 and 13 that are formed in a side-convex shape with a convex side surface.

The signal cable of the operation box 35 is
The cable can be guided to the upper side of the door 13 through the inner hole of the maintenance / inspection door 13 from the hollow hole of the support shaft, and can be pulled out to the outside of the door 13. There is no need for flexible ducts to protect the cables. The cable pulled out from the upper portion of the maintenance / inspection door 13 will be connected from above to the control device and the switch which are arranged behind the machine body 6, so that the cable will not be routed in a random manner. Wiring work is also easy.

Regarding the rotation angle of the operation box 35, a stopper is formed by a projection and a notch formed between the support shaft 34 and the bearing sleeve 33 that receives the support shaft 34, and the position of the rotation end at the time of housing and pulling out the stopper is formed. By providing the handle 46 on the operation box 35, the operation box 35 can be easily and safely pulled out and stored.

When the maintenance / inspection door 13 is moved during maintenance / inspection, the operation box 35 is also moved at the same time, so that the operation box does not interfere during maintenance / inspection.

Further, the doors 12 and 13 bent in a convex shape are not only effective for securing a large work processing area in the cover, but also when the doors 12 and 13 are opened, the operator can use the machine body. It is possible to get closer to each other, and it is also excellent in workability when loading and unloading workpieces and performing maintenance inspections. Then, the cutting fluid tank 5 is provided on the lower side of the overhang portions of the doors 12 and 13.
The cutting fluid adhering to the outside of the doors 12 and 13 can be returned to the cutting fluid tank 5 by guiding the inside of the door 12, and the structure in which the cover 26 is provided in the groove 8 of the upper rail prevents dust from entering the groove 8. The problem of making the opening / closing operation of the doors 12 and 13 heavy will not occur.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described with reference to the drawings. The machine body of the lathe includes a slide 1 that is inclined forward by 45 degrees, and a lower rail 4 is supported at the tip of a stay 3 that extends forward from a slant type base 2 that supports the slide 1. A cutting fluid tank 5 is arranged below the stay 3, and the cutting fluid flowing down on the base 2 flows down to the cutting fluid tank 5 due to the inclination of the upper surface of the base 2. Above the machine body 6, a groove 7 parallel to the lower rail 4 is formed in the member 7 forming the ceiling portion of the cover to form an upper rail. A work door 12 and a maintenance / inspection door 13 in which a ceiling portion 9, a front upper portion 10 and a front lower portion 11 are formed by bending the outer rail 8 and the lower rail 4 outwardly twice to form a ceiling portion 9, a front upper portion 10 and a front lower portion 11.
Are mounted by wheels 14 and rollers 15 so as to be movable laterally. The work door 12 is provided at a position covering the work machining area between the spindle and the tailstock, and the maintenance / inspection door 13 is provided so as to cover the front surface of the portion where the tailstock and the slide base of the turret 17 are arranged. There is. The lower rail 4 is located in the lower front part of the main shaft 18 of the lathe, and the upper rail 8 is located in the upper rear part of the main shaft 18, so that when the work door 12 is opened, the work can be carried out either from above or from the front. It can be put in and taken out from the work processing area. Work door 12 and maintenance door 13
The front part is bent in a V-shape with a convex side surface to secure a large space for a work machining area around the spindle 18.

The front lower part 11 of each of the doors 12 and 13 is a reverse inclined surface, and the lower end 19 located directly above the wheel is
It is located inside a lower edge cover 20 provided so as to cover wheels and rails. The lower edge cover 20 has its lower portion bent inward and then bent downward so that its lower edge 21 is positioned inside the front side wall 22 of the cutting fluid tank 5. With this structure, the cutting fluid attached to the outer surfaces of the doors 12 and 13 flows down from the lower edge 19 thereof to the inside of the lower edge cover 20 and from the lower end of the lower edge cover 20 into the cutting fluid tank 5. Become.

The bracket 2 is provided on the upper edge 24 of the doors 12 and 13.
A roller 15 is supported by 5, and this roller 15 is rotatably fitted to the groove-shaped upper rail 8. An L-shaped cover 26 covering the groove 8 is fixed above the groove 8, and the bracket 25 passes through a slit 27 formed between the wall surface of the rail 8 and the cover 26. The work door 12 and the maintenance / inspection door 13 have a structure in which a space 30 is provided between the outer panel 28 and the inner panel 29.
A large recess 31 is formed in the upper part of the. A cylindrical bearing sleeve 33 is vertically fixed to a position on the bottom surface of the recess 31 that is closer to the work door side, and a spindle 34 made of a pipe material is rotatably fitted to the bearing sleeve 33. The operation box 35 is fixed to the. A ring 36 having step portions (not shown) provided at two locations in the circumferential direction is fixed to the lower end of the support shaft 34, and the step portion of the ring is provided with the step portion provided at the lower edge of the bearing sleeve 33. By engaging, the pivotal end of the support shaft 34, that is, the operation box 35 is regulated.

The front of the operation box 35 has a vertical upper portion and the door 12,
The display panel 40 has a CRT display surface 38 and a display lamp 39, and the lower portion has an operation panel having various operation switches and buttons. It is 41.

In the lower part of the recess 31 of the maintenance / inspection door 13, a large empty chamber 42 is formed between the outer panel 28 and the inner panel 29, and the signal cable connected to the operation box 35 is a spindle 34. After being drawn out to the above-mentioned empty chamber 42 through the hollow hole of the above, it is guided to the upper part through the space 30 between the outer surface panel 28 and the inner surface panel 29 on the side of the recess 31, and the lower part of the upper rail 8. It is pulled out to the ceiling portion 7 of the cover through the slit 43 provided in the. The signal cable in this drawn-out portion is bent in a horizontal U-shape in the plane between the moving door side cable retainer 44 and the fixed side cover cable retainer 45, and absorbs the movement stroke of the maintenance / inspection door 13. It is like this. A handle 46 is provided on the side surface of the operation box 35 on the side opposite to the work door, and the operator can easily pull out and push back the operation box 35 with the handle 46.

The maintenance / inspection door 13 provided with the operation box 35 is not opened so much during normal work, so that it is semi-fixed to the cover body by a set screw (not shown) so as not to move unintentionally. It On the other hand, work door 1
2 is something that is frequently opened and closed on a daily basis, so handle 4
6 is provided so as to be opened and closed easily, and a window 47 for visually recognizing the working state is provided. The work door 12 is opened to the left when viewed from the front (FIG. 5), and the maintenance / inspection door 13 is slid to the left and opened while the work door 12 is moved to the left. ..

[0025]

According to the cover device of the present invention described above, the operation box is compactly stored on the front surface of the cover,
Further, if necessary, the front surface can be pulled out with the front facing the worker, so that good visibility and operability of the operation panel can be secured under all work conditions. Since this operation box is attached to the maintenance / inspection door, it moves at the same time when the maintenance / inspection door is moved, so it does not interfere with maintenance / inspection, and its support structure is simple and highly rigid. The signal cable of the control box can be processed reasonably.

Further, according to the shape and the supporting structure of the present invention, a large work machining space can be secured in the lathe, workability at the time of opening the door is excellent, and the leakage of cutting fluid and the intrusion of dust into the rail portion are prevented. The effect is that it can be prevented.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a cover of an operation box mounting portion and a machine body.

FIG. 2 is a sectional view of a work door portion.

FIG. 3 is a cross-sectional view showing an upper support portion of a door.

FIG. 4 is a sectional view showing a lower support portion of a door.

FIG. 5 is a front view of the cover device.

FIG. 6 is a plan view of a cover device.

[Figure 7] Front view of operation box

[Explanation of symbols]

 2 Base 4 Lower rail 5 Cutting fluid tank 8 Recessed groove (upper rail) 12 Working door 13 Maintenance door 19 Lower edge 20 Lower edge cover 21 Lower edge cover lower edge 22 Front side wall 26 L-shaped cover 31 Recess 34 Spindle 35 Operation box 38 CRT display surface 40 Display panel 41 Operation panel

Claims (4)

[Claims] 1. A rail common to these (12) and (13) is a work door (12) for opening the work area of the lathe on the front surface of the cover and a maintenance / inspection door (13) for mainly opening the maintenance / inspection area. (Four) ,
In the cover device of the lathe that can be opened and closed freely in a sliding door type that moves along (8), a recess (31) is formed in a part of the maintenance inspection door (13), and the bottom of the recess is formed. Operation box that can be rotated around the vertical support shaft (34) located on the work door side
A lathe cover device characterized in that (35) is supported. 2. The operation box, wherein the support shaft (34) for supporting the operation box (35) is formed of a pipe material opening inside the maintenance / inspection door (13).
The signal cable of (35) is pulled out to the inside of the maintenance and inspection door (13) through the hollow hole of the support shaft (34), and is guided upward along the wall of the maintenance and inspection door (13). The lathe cover device according to claim 1, wherein the cover device is drawn out from the upper end side of the (13) to the outside of the door. 3. The work door (12) and the maintenance / inspection door (13) have a dogleg-shaped cross-section protruding outward, and the lower rail (4).
And the upper rail (8), and the lower rail
(4) is placed in front of the lathe base (2) with a gap, and the cutting fluid tank (5) is placed in the gap and the door
The lower end (19) of the outer surface of (12), (13) that is inclined backward is the cutting fluid tank.
Attach the upper or lower edge (21) of the front side wall (22) of (5) to the cutting fluid tank.
Lower edge cover (20) inside the upper edge of the front side wall (22) of (5)
The lathe according to claim 1 or 2, characterized in that a cover (26) is provided in an upwardly facing groove (8) formed in the upper rail (4) portion, the groove being located inside the upper end of the lathe. Cover device. 4. The operation box (35) has a display device on the front upper part thereof.
The (38) is arranged, and the operation switches are arranged in the lower part, and the intermediate part has a shape bent in an inverted V shape having a concave side surface at a side surface thereof.
Alternatively, the cover device for a lathe according to the item 3.