JP2000033516A - Recovery method for cutting oil in workpiece in cutting machine and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the work environment in the surroundings by recovering a cutting oil in a pipe material while preventing the outflow of the oil at the time of cutting and machining. SOLUTION: A workpiece rear end detection device detecting a position of a rear end of a workpiece W is provided at a tip of a lid member 49. The lid member 49 is moved in the forward and backward directions and in the right and left directions on a horizontal face by a lid member travel positioning device 53 based on a signal detected by the workpiece rear end detection device and follows the travel in the direction of conveyance of the workpiece W. Since a rear end face of the workpiece W is covered with the lid member 49 at all times when cutting and machining are done by a cutting tool, the flow-out a cutting oil CO in the workpiece W is prevented. Upon completion of a series of cutting and machining operations, the cutting oil CO in the workpiece W is scraped out to the outside from a tip by a scraping out member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for collecting cutting oil in a cutting machine for collecting cutting oil accumulated in, for example, a pipe material as a work in the cutting machine.

[0002]

2. Description of the Related Art Conventionally, in a band sawing machine such as a horizontal band sawing machine or a vertical band sawing machine or a cutting machine such as a circular sawing machine, for example, in a band sawing machine 101, as shown in FIG. The pipe material W is conveyed in the work conveying direction by a work conveying device such as the conveyer 103 and is positioned at a desired cutting position, and the pipe material W is composed of a fixed vice jaw 105 and a movable vice jaw 107. Clamped at 109.

When the clamped pipe material W is cut by the rotationally driven band saw blade 111, the band saw blade 111 located in the cutting area and the cutting portion of the work W are cut as shown in FIG. The configuration is such that the cutting oil CO from the oil supply nozzle 113 circulates and is constantly injected.

[0004]

By the way, conventionally, in a cutting machine, cutting oil CO, which is injected at the time of, for example, cutting a pipe material W as a work W, accumulates in the pipe material W. There was a problem in that it flowed out from the end side and was taken out.

Further, the cutting oil CO accumulated in the pipe material W
There is a problem that it is not good in the working environment, because when it retreats the remaining pipe material W, it flows out and gets wet.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to collect cutting oil accumulated in a work, for example, when a pipe material is cut as a work, and to collect the cutting oil. It is an object of the present invention to provide a method and an apparatus for collecting cutting oil in a work in a cutting machine which prevents take-out and improves a surrounding working environment.

[0007]

According to a first aspect of the present invention, there is provided a method of recovering cutting oil from a work in a cutting machine, wherein the cutting oil is injected into a cutting portion and the work is cut by a cutting tool. When processing, perform cutting with the back end face of the work always covered with a cover member so that the cutting oil accumulated in the work does not flow out, and collect the cutting oil in the work after the cutting is completed. It is a feature.

Accordingly, the cutting oil accumulated in the work during the cutting process does not flow out to the outside by the cover member that always covers the rear end face of the work, so that the carry-out of the cutting oil is reduced and the surrounding working environment is improved. Can be

According to a second aspect of the present invention, there is provided a method of collecting cutting oil in a work in a cutting machine according to the first aspect of the present invention, wherein the position of a rear end of the work is detected. On the basis of the detected data, the cover member is automatically followed in the forward direction to cover the rear end face of the work.

Accordingly, the lid member is automatically moved forward following the movement of the work, so that the rear end face of the work is reliably covered. Also, even when the work is transported in a series of cutting processes in which the work is cut into many lengths, the rear end surface of the work is always covered by the lid member, so that the cutting oil does not flow out. In addition, the amount of cutting oil taken out is reduced, and the surrounding working environment is improved.

According to a third aspect of the present invention, there is provided a method of collecting cutting oil in a work in a cutting machine according to the present invention, wherein the cutting oil is recovered from the tip of the lid member in a forward direction. The cutting member is protruded to scrape out the cutting oil in the work from the tip to the outside.

Therefore, after a series of cutting processes in which the work is cut into many lengths, the cutting oil in the work is scraped out from the tip by the scraping member to the outside.
The removal of the cutting oil is reduced, and the surrounding working environment is improved.

According to a fourth aspect of the present invention, there is provided a method of recovering cutting oil from a work in a cutting machine according to the present invention, wherein the cutting oil is applied to a cutting portion of the work and cut by a cutting tool. The cutting oil suction device, which is in standby on the rear side of the cutting section, is operated in advance to suck and collect the cutting oil in the work from the end face of the work.

Therefore, after a series of cutting processes in which the work is cut into many lengths is completed, the cutting oil accumulated in the work is sucked and collected by the cutting oil suction device. And the surrounding work environment is improved.

According to a fifth aspect of the present invention, there is provided a cutting oil collecting apparatus for collecting cutting oil in a work, wherein the cutting oil is injected into a cutting portion of the work and cut by a cutting tool. And a cover member for covering the rear end face of the work so as not to flow out, and the cover member is provided so as to be movable in the front-rear and left-right directions on a horizontal plane.

Therefore, the operation is similar to that of the first aspect, and the cutting oil accumulated in the work at the time of cutting is not discharged outside by the cover member covering the rear end surface of the work, so that the cutting oil is less taken out. At the same time, the surrounding work environment is improved.

According to a sixth aspect of the present invention, there is provided a cutting oil recovery device for a work inside the work in the cutting machine according to the fifth aspect of the present invention. An actuator provided with a scraping member which can move forward and backward so as to scrape the frontward is provided at a rear portion of the lid member.

Therefore, the operation is similar to that of the third aspect, and after a series of cutting processes in which the work is cut into many lengths, the cutting oil in the work is moved from the tip to the outside by the scraping member. Since the scraping is carried out, the carry-out of the cutting oil is reduced, and the surrounding working environment is improved.

According to a seventh aspect of the present invention, there is provided a cutting machine for recovering a cutting oil in a work in a cutting machine according to the present invention. A cutting oil suction device for sucking and collecting cutting oil in the work from an end face of the work is provided so as to be able to stand by and swing freely.

Therefore, the operation is similar to that of the fourth aspect, and after a series of cutting processes in which the work is cut into many lengths, the cutting oil in the work is sucked by the cutting oil suction device. Since it is collected, the take-out of the cutting oil is reduced and the surrounding working environment is improved.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method and an apparatus for recovering cutting oil from a work in a cutting machine according to the present invention will be described below with reference to the drawings, taking, for example, a horizontal band saw machine 1 as a cutting machine. I do.

Referring to FIG. 1, FIG. 2 and FIG. 3, a horizontal band saw machine 1 as a cutting machine according to the present embodiment comprises a box-shaped base 3, a cutting head 5, and the like. Reference numeral 5 is pivotally supported on the base 3 via a horizontal hinge pin 7 so as to be able to move up and down.

On the upper part of the base 3, there is provided a work table 9 on which a work W is placed. The work table 9 has a fixed vice jaw 11 and a movable vice jaw 13 which can clamp and fix the work W. Vise device 15 is provided.

The cutting head 5 is provided with housing portions 17 and 19 spaced apart on both sides, and the housing portions 17 and 19 are connected by a beam member 23 having an upper control box 21.

Housing section 1 of cutting head 5
A drive wheel 25 and a driven wheel 27 are mounted on the wheels 7 and 19 via shafts 29 and 31, respectively. An endless band saw blade B is wound around the drive wheel 25 and the driven wheel 27. Accordingly, the band saw blade B as a cutting tool is driven to cut the work W by driving the drive wheel 25.

A fixed guide member 35 and a movable guide member 37 are mounted on the guide member 33 fixed to the beam member 23, and the band saw blade B is moved by the fixed guide member 35 and the movable guide member 37. The band saw blade B is guided and supported so that the cutting edge of the band saw blade B faces vertically downward in the cutting region where the cutting is performed. The fixed guide member 35 is fixedly attached to the guide member 33, and the movable guide member 37 is attached so as to be adjustable in position so as to correspond to the size of the work W.

The cutting head 5 is configured to rotate up and down around a hinge pin 7 by an ascending and descending cylinder 41 having a piston rod 39. The action of the ascending and descending cylinder 41 causes the band saw blade B to work on the workpiece W. It is possible to control the incision and ascent / descent.

The drive wheel 25 and the driven wheel 27
An endless band saw blade B is wound around the shaft, and a drive motor (not shown) is operatively connected to a shaft 29 of the drive wheel 25.

With the above configuration, when the drive motor is driven, the drive wheel 25 is rotated via the shaft 29, so that the band saw blade B wound around the drive wheel 25 and the driven wheel 27 is driven to travel.

The cutting head 5 is rotated up and down around the hinge pin 7 by the action of the lifting cylinder 41, so that the vertical position of the band saw blade B can be detected by the rotation angle of the hinge pin 7 using, for example, an encoder. ,
Detailed description is omitted because it is already known.

In order to detect the position where the band saw blade B approaches the work W, for example, a guide member 33 fixed to a beam member 23 which is a rotating member of the horizontal band saw machine 1 is not shown, but is not shown. A movable lever is vertically installed, and a limit switch or the like is brought into contact with the lever to detect a position where the lever comes into contact with the work W. Alternatively, a lifting / lowering detecting device that includes position detecting means for detecting with a photoelectric switch or the like and detects those positions, or detects the contact position of the workpiece W based on the rotation angle of the hinge pin 7 is electrically connected to the CPU 66 of the control device 65. It is connected to the.

The horizontal band saw machine 1 is configured so that the cutting oil CO is always supplied to the cutting portion of the band saw blade B and the work W located in the cutting area.

On the rear side (the upper side in FIG. 1) of the base 3, fixed vice jaws 11 and movable vice jaws 13 (in the present embodiment, these vice jaws 11,
13 is referred to as a “body vise jaw” for convenience, for example, a roller conveyor as a work transfer device for supporting the pipe W and transferring the work W in the front-rear direction in order to transfer the work W such as the pipe W. And the like.

As the conveyor device 43, a rear table 45 is provided on the rear side of the base 3, and the rear table 45 is driven by a transport motor (not shown) in the work transport direction (forward) and in the opposite direction. A plurality of rotatable transport rollers 47 are provided.

As the work transfer device, for example,
Use is made of a material feeding vise device that clamps and conveys a work with a material feeding vise, or a conveyance device that clamps the rear end of a work W and conveys it in a self-propelled manner.

At an appropriate position on the rear table 45,
In order to prevent the cutting oil CO that flows into and accumulates in the pipe material W as the workpiece W during cutting from flowing out from the rear end to the outside, a cover member 49 that always covers the rear end face of the pipe material W is provided. Have been.

More specifically, the shape and size of the cover member 49 are not limited, but it is basically sufficient if the cover member 49 covers the lower portion of the pipe member W. 2, the size of the lid member 49 is changeable according to the size of the work W, and is extended rearward (upward in FIG. 1). It is provided at the tip of the main body 51. The lid member main body 51 is moved horizontally and horizontally by a lid member movement positioning device 53 so that the rear end surface of the pipe material W is always covered with the lid member 49 following the movement of the pipe material W in the transport direction. It is provided movably.

More specifically, the lid member moving / positioning device 5
3 is a first lid member moving device 55 for reciprocating the lid member 49 back and forth in the transport direction of the pipe material W, and a second lid member moving device 57 for moving the lid member 49 right and left in the width direction of the pipe material W. It is composed of

As the first lid member moving device 55, for example, a guide rail 5 extending in the transport direction (X-axis direction) of the pipe material W is provided on the left side (right side in FIG. 1) of the rear table 45.
The carriage 61 is provided on the guide rail 59 so as to be reciprocally movable in the work transfer direction by an X-axis driving means such as an X-axis motor (not shown).

The carriage 61 has a second lid moving device 5
For example, two support arms 63 constituting the support arm 7 are provided to be cantilevered in the horizontal direction in the horizontal plane (the horizontal direction in FIG. 1, the Y-axis direction).
The cover member main body 51 described above is provided on the top 3 so as to be movable in the Y-axis direction by Y-axis driving means such as a Y-axis motor (not shown).

Each of the first and second lid moving devices 5
5 and 57 are each electrically connected to the control device 65.

Further, a work rear end detecting device 67 such as a limit switch or a proximity sensor for detecting the position of the rear end surface of the pipe material W is provided at the front end of the lid member 49.
The work rear end detection device 67 is electrically connected to the control device 65.

Further, for example, a fluid pressure cylinder 69 as a scraping member driving device is provided on the cover member main body 51 so as to extend in the X-axis direction. As shown in FIG. 4, a scraping member 73 is provided. This scraping member 73
Is arranged so as to move forward and backward to scrape the cutting oil CO in the pipe material W forward from the tip of the lid member 49.

The scraping member 73 is made of a pipe material W.
It is desirable that the cross-sectional shape of the pipe material W is a shape, for example, when the cross-section of the pipe material W is circular, the tip of the pipe material W is an arc-shaped spatula, and the cross-section of the pipe material W is rectangular. When it is a thing, it is desirable that the shape of the tip is a spatula having a downward U-shape adapted to the cross-sectional shape of the pipe material W.

The driving device for the scraping member is constituted by a ball screw driven by a motor or the like, and the scraping member 73 may be provided at the tip of the ball screw. It is not limited.

As shown in FIG. 1, the control device 65 includes an input device 77 and a display device 79 for inputting data such as the diameter, width, and length of the pipe material W as the work W in advance. 81 for storing the input data, the size of the pipe material W input in advance and the body vice jaw 11,
13, the pipe member W is moved to the main body vice jaw 11,
An arithmetic unit 83 is provided for calculating a substantially center position in the width direction of the pipe material W when clamped at 13.

Further, the control device 65 sends the cover member 49 to the pipe material W on the basis of the substantially center position in the width direction of the pipe material W calculated by the arithmetic device 83 and the detection signal detected by the work rear end detection device 67. A command is issued to the lid member moving / positioning device 53 so that the rear end face of the pipe member W is always covered with the lid member 49 while following the movement of the pipe member W in the transport direction, and the pipe member W is stored in advance. Calculating from the total length and the cutting length of the product, it is determined that a series of cutting steps of the pipe material W has been completed, and the scraping member 73 determines the cutting oil C in the pipe material W.
A comparison / determination device 85 that issues an operation command to the fluid pressure cylinder 69 to scrape O forward is provided.

The comparing and judging device 85 includes the arithmetic device 8
Y-axis motor (not shown) based on the calculated value calculated in 3
To move the lid member body 51 to a position substantially at the center in the width direction of the pipe material W, and when the limit switch as the work rear end detecting device 67 is OFF, for example, the lid member 49 When it is determined that the end face is not in contact with the end surface, an instruction is issued to drive the X-axis motor (not shown) to move the carriage 61 in the workpiece transfer direction.
On the other hand, when the limit switch is ON,
Is determined to be in contact with the rear end surface of the pipe member W, and a command to stop driving the X-axis motor (not shown) is generated. The movement of the carriage 61 in the work transfer direction is stopped.

With the above configuration, the pipe material W is transported in the workpiece transport direction by the conveyor device 43, positioned at a desired cutting position, and clamped by the main body vice jaws 11, 13. At this time, the cover member moving / positioning device 53 is operated by a command from the control device 65, the cover member 49 is moved in the X-axis and Y-axis directions, and the rear end face of the pipe material W is covered with the cover member 49.

When the pipe material W is cut, the cutting oil CO is constantly injected into the cutting portion.
O accumulates, but since the rear end face of the pipe material W is covered with the lid member 49, the cutting oil CO in the pipe material W does not flow out.

After the pipe material W has been cut, the pipe material W of the product is opened by the main body vice jaws 11, 13. Next, the pipe member W on the rear side on the transport roller 47 is transported again in the workpiece transport direction by the conveyor device 43 and the material feeding vise device, and the lid member movement positioning device 53 is operated by a command from the control device 65 to operate the lid member. Since the pipe member 49 follows the movement of the pipe member W, the rear end face of the pipe member W is always conveyed while being covered with the cover member 49 and positioned at a desired cutting position. The positioned pipe member W is clamped by the main body vice jaws 11 and 13 and then cut again as described above.

The above-described cutting process is repeated, and the pipe material W
After a series of cutting processes of the above is completed, the fluid pressure cylinder 69 operates according to a command from the control device 65 and the piston rod 7
The scraping member 73 at the first end advances, and the cutting oil CO in the pipe material W is scraped out by the scraping member 73 and discharged from the tip end surface of the pipe material W to the outside and collected. Thereafter, the scraping member 73 is retracted by the operation of the fluid pressure cylinder 69 and returns to the original position.

As another embodiment of the present invention, the conveying roller 47 of the conveyor device 43 behind the cutting position is used.
As shown in FIGS. 5 and 6,
For example, a suction nozzle 85 as a cutting oil suction device for sucking and collecting the cutting oil CO in the pipe material W is on standby as shown by a two-dot chain line in FIG. 6, and is shown by a solid line. As shown in FIG.

Therefore, as described above, after a series of cutting processes of the pipe material W is completed, the remaining pipe material W is retreated by the conveyor device 43, and the above-described suction nozzle 85
Is stopped at the standby position. Next, the suction nozzle 85 swings downward and comes into contact with the bottom surface in the pipe material W from the front end face of the pipe material W. The cutting oil CO in the pipe material W is sucked from the tip of the suction nozzle 85 and collected outside (that is, returned into the circulation system of the cutting oil CO of the horizontal band saw machine 1).
Therefore, after the cutting oil CO in the pipe material W is discharged and collected, the remaining material is taken out from the work transfer device and carried, so that the situation where the cutting oil CO is scattered around the horizontal band saw machine 1 is eliminated. .

The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes. In the present embodiment, the horizontal band saw machine 1 has been described as an example of a cutting machine, but a vertical band saw machine 1, another band saw machine 1, a circular saw machine, or another cutting machine may be used.

Although the above-described work has been described by taking a pipe material as an example, even if the work is made of an H-shaped steel or an L-shaped steel, the cutting oil accumulates on the concave upper surface of the work inside the work. For example, the scraping member is applied by using a scraping member having a shape corresponding to the concave shape of each work.

[0057]

As will be understood from the above description of the embodiment, according to the first aspect of the present invention, the cover member that covers the rear end face of the work at all times is formed by the cutting material accumulated in the work at the time of cutting. Since the oil does not flow out, the carry-out of the cutting oil can be reduced. The surrounding work environment can also be improved.

According to the second aspect of the present invention, the lid member can be automatically moved in the forward direction following the movement of the work, so that the rear end face of the work can be reliably covered. Also, even when the work is transported in a series of cutting processing steps in which the work is cut into many lengths, since the rear end surface of the work is always covered by the lid member, the cutting oil does not flow to the outside, It is possible to reduce the amount of cutting oil taken out. The surrounding work environment can also be improved.

According to the third aspect of the present invention, the cutting oil in the work is scraped out from the tip by the scraping member to the outside after a series of cutting processes in which the work is cut into many lengths. Oil take-out can be reduced. The surrounding work environment can also be improved.

According to the fourth aspect of the present invention, the cutting oil in the work is sucked and collected by the cutting oil suction device after a series of cutting processes in which the work is cut into many lengths is completed. It is possible to reduce the amount of cutting oil taken out. The surrounding work environment can also be improved.

According to the fifth aspect of the invention, the effect is the same as that of the first aspect, and since the lid member covering the rear end face of the work does not allow the cutting oil accumulated in the work to flow out to the outside during the cutting process. In addition, the amount of cutting oil taken out can be reduced. The surrounding work environment can also be improved.

According to the sixth aspect of the invention, the effect is the same as that of the third aspect, and after a series of cutting processes in which the work is cut into a number of lengths is completed, the scraping member is used to remove the inside of the work. Since the cutting oil is scraped out from the tip, the amount of cutting oil taken out can be reduced. The surrounding work environment can also be improved.

According to the seventh aspect of the present invention, the effect is the same as that of the fourth aspect, and after a series of cutting processes in which the work is cut into many lengths is completed, the inside of the work is cut by the cutting oil suction device. Since the cutting oil is sucked and collected, the amount of cutting oil taken out can be reduced. The surrounding work environment can also be improved.

[Brief description of the drawings]

FIG. 1 is a plan view of a horizontal band saw machine 1 as a cutting machine and a cutting oil recovery device used in an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a front view of a horizontal band saw machine 1 as a cutting machine used in the embodiment of the present invention.

FIG. 4 is a partial plan view for explaining the operation of the scraping member in FIG. 1;

FIG. 5 is a schematic front view of a cutting oil recovery device showing another embodiment of the present invention.

FIG. 6 is a schematic side view of a cutting oil recovery device showing another embodiment of the present invention.

FIG. 7 is a plan view of a conventional horizontal band sawing machine for cutting a work.

FIG. 8 is a front view of FIG.

[Explanation of symbols]

 Reference Signs List 1 horizontal band sawing machine 1 (cutting machine) 11 fixed vice jaw 13 movable vice jaw 15 vice device 43 conveyor device 49 lid member 53 lid member moving positioning device 55 first lid member moving device 57 second lid member moving device 61 carriage 63 support Arm 65 Control device 67 Work rear end detection device 69 Fluid pressure cylinder (drive device for scraping member) 73 Scavenging member 83 Comparative judgment device 85 Suction nozzle (Cutting oil suction device)

Claims (7)

[Claims] 1. A state in which a rear end surface of a work is always covered with a cover member so as to prevent cutting oil accumulated in the work from flowing out when cutting oil is injected into a cutting portion and the work is cut with a cutting tool. A method for collecting cutting oil in a work in a cutting machine, wherein the cutting oil is cut in the work and the cutting oil in the work is collected after the completion of the cutting. 2. The method according to claim 1, wherein a position of a rear end of the work is detected, and the rear end of the work is covered by automatically following the lid member forward based on the detected data. Item 6. A method for recovering cutting oil from a work in a cutting machine according to Item 1. 3. A cutting machine according to claim 1, wherein the scraping member is protruded forward from the tip of the lid member to scrape out the cutting oil in the workpiece from the tip to the outside. Oil recovery method. 4. A cutting oil is injected into a cutting portion of a work and cut by a cutting tool. After the cutting, the work is retracted. A method for collecting cutting oil in a work in a cutting machine, wherein the method is operated to suck and collect cutting oil in the work from an end face of the work. 5. A cutting machine for injecting cutting oil into a cutting portion of a work and cutting the work with a cutting tool, wherein a cover member for covering a rear end surface of the work is provided so as to prevent cutting oil accumulated in the work from flowing out. In addition, a cutting oil recovery device for a workpiece in a cutting machine, wherein the lid member is provided so as to be movable in the front-rear and left-right directions on a horizontal plane. 6. An actuator provided with a scraping member which is movable forward and backward so as to scrape cutting oil in a work forward from a tip of the lid member, and is provided at a rear portion of the lid member. Item 6. A device for collecting cutting oil in a work in the cutting machine according to Item 5. 7. A cutting machine for injecting cutting oil into a cutting portion of a work and cutting the work with a cutting tool, wherein a cutting oil suction for sucking and collecting cutting oil in the work from an end face of the work behind the cutting portion. A device for recovering cutting oil from a workpiece in a cutting machine, wherein the device is provided so as to be able to stand by and swing freely.