JPH0567446U - Scrap cleaning device for saddle mobile machine tools - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is an oil pan 9 for a machining center or the like.
Provided is a device for flushing the accumulated chips without leaving any residue. [Structure] Scrapers 11a and 11b are attached to the front and rear side surfaces in the moving direction of a saddle 2 which moves back and forth during a processing cycle. Nozzles 13a, 13b and 13c are provided at the front end, the rear end and the center of the stroke of the saddle 2 toward the chip conveyor 8 on the bed side. As the saddle 2 moves forward and backward, the scraper scrapes chips into the flow areas of the front, rear, and center nozzles 13a, 13b, 13c, and the collected chips are discharged by the liquid discharged from the nozzles 13a, 13b, 13c.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a device for flushing chips accumulated on a chip receiving member such as a machining center of a machine tool.

[0002]

[Prior Art]

 Conventionally, many machining centers and the like cover the front side of the column 103 with the splash guard 101 as shown in FIGS. 5, 6 and 7, and the cutting deposit accumulated on the oil pan 107 that receives the chips in the splash guard 101. As a method of removing powder, a flushing supply pipe 105 having a large number of flushing nozzles 102 arranged in parallel in the lower part of both sides in the splash guard and provided toward the chip conveyor 104 is attached to the outside of the saddle 106, and is cut from the flushing nozzle 102. A device is used in which a washing liquid such as a liquid is sprayed to wash away the chips accumulated on the slightly inclined oil pan 107.

[0003]

[Problems to be solved by the device]

 Since the position of the flushing nozzle is fixed in this product, there is a place where the flushing liquid cannot reach depending on the nozzle interval, and there is a part where chips are left unwashed. It may be possible to increase the inclination of the oil pan in order to eliminate this, but if it cannot be increased, it is necessary to flow a large amount of liquid. In order to do this, not only is the equipment such as liquid transfer pumps and tanks large and expensive, but it is also very uneconomical when considering running costs and equipment space. Further, when the number of nozzles is increased and the interval is narrowed, the discharge pressure becomes smaller, the washing power of the chips becomes weaker, and a large pump becomes necessary. The present invention has been made in view of the above problems of the conventional technology, and its purpose is to provide a chip flushing device capable of efficiently flushing chips without a large flow rate of the flushing liquid. It is the one we are trying to provide.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention installs scrapers for scraping chips accumulated on the chip receiving member on both sides of the saddle in the moving direction at right angles to the moving direction, and installing the saddle on the chip receiving member. Nozzles that discharge the flushing liquid from the outside toward the chip discharge side are installed at least at both ends of the saddle stroke and at the approximate center of the stroke, and the scraper is used to move the chips into the nozzle by the movement of the saddle during the machining cycle. It is the one that is collected in the wash-off area and washed away.

[0005]

[Action]

 The chips scattered by the forward and backward movements of the saddle during the processing cycle are collected by the scrapers before and after the saddle in the flow-out areas of the front end nozzle, rear end nozzle, and central nozzle of the flush liquid supply pipe on both outsides of the saddle and are discharged from each nozzle. It is washed off with the rinse solution.

[0006]

【Example】

 The description will be made below with reference to FIGS. In a vertical machining center, a saddle 2 is mounted so as to be movable and positioned on a guide in the Y-axis direction provided on the front upper surface of a bed 1 installed on the floor, and the saddle 2 is provided on the saddle 2 so as to guide it in the X-axis direction. The table 3 is mounted on the table so that it can be moved and positioned. A column 4 is erected on the rear side of the bed 1, and a spindle head 5 is movably mounted on a Z-axis direction guide provided on the front surface of the column 4, and a spindle 6 is mounted on the spindle head 5. It is rotatably supported. The front side of the front of the column 4, that is, the moving area of the saddle 2 and the table 3 and the upper side thereof are covered with a splash guard 7, and the splash guard 7 has a bottom saddle 2 from the lower center to the left and right sides of the bed 1. A chip conveyor 8 is installed in the saddle moving direction, and an oil pan 9 that is inclined toward the chip conveyor is provided. Scrapers 11a and 11b are attached to the left and right sides of the saddle 2 and the front and rear side surfaces in the moving direction, respectively.

The scrapers 11a and 11b have a large number of coil springs 12 that are densely hung in a line, and the lower ends of the scrapers 11 are in contact with the upper surface of the oil pan 9 or are attached with a slight gap. is there. On the outer side of the oil pan 9 which does not interfere with the movement of the saddle 2, flushing liquid supply pipes 13 parallel to the saddle moving direction are fixed on both outer sides, and are directed toward the chip conveyor 8 at the front and rear stroke ends of the saddle 2. A front nozzle 13a, an outer nozzle 13b and a central nozzle 13c are provided. When the flush liquid is supplied from the pump 14 to the flush liquid supply pipe 13 through the pipes 15A and 15B, the flush liquid is discharged from these nozzles. It is what is discharged.

When the work piece on the table 3 is machined by the tool installed on the spindle 6 in accordance with the machining program in the machine constructed as described above, the chips are scattered in the splash guard and fall into the oil pan 9. At the same time as processing, a flushing liquid under pressure is supplied from the pump 14 to the flushing liquid supply pipe 13 and discharged from the nozzles 13a, 13b, 13c, but at a position deviated from the flow of the flushing liquid in the middle of the nozzle or accumulated and accumulated. Is not washed away. However, during the machining cycle, the saddle 2 is appropriately moved forward and backward by control, so that the chips that fall on the front of the saddle 2 are scraped forward by the scraper 11a by the forward movement of the saddle 2 to the flush area of the nozzle 13a at the front end. The washing liquid carried and discharged from the nozzle 13a is flowed to the chip conveyor 8 side. Further, the chips that have fallen backward are scraped backward by the scraper 11b in the backward movement of the saddle, carried to the flushing area of the nozzle 13b at the rear end, and flushed to the chip conveyor 8 side with the flushing liquid discharged from the nozzle 13b. Further, the chips collected in the center by the front and rear scrapers 11a and 11b as the saddle 2 moves forward and backward are made to flow to the chip conveyor 8 side by the central nozzle 13c.

[0009]

[Effect of the device]

 As described above, the present invention has the following effects. Since the chips are collected in a prescribed place, it is extremely efficient because it can be concentrated and discharged with a small amount of flushing liquid. It is economical because it can achieve its purpose with a small capacity pump and tank. Since the chips start to partially accumulate on the oil pan and are scraped up by the scraper until they grow, it is possible to prevent the accumulated chips from growing. Furthermore, since the control movement of the saddle during the machining cycle is effectively used, it is not necessary to command a special movement for flushing, and the cycle time is not affected.

[Brief description of drawings]

FIG. 1 is a plan view of a machining center equipped with the device of the present invention.

FIG. 2 is a side view of a machining center equipped with the device of the present invention.

FIG. 3 is a view showing the arrangement of a flushing nozzle on an oil pan and a scraper of a saddle.

FIG. 4 is a diagram showing a relationship between a scraper and an oil pan.

FIG. 5 is a plan view of a machining center to which a conventional device is attached.

FIG. 6 is a plan view showing positions of nozzles on an oil pan.

FIG. 7 is a side view showing the position of the nozzle on the oil pan.

[Explanation of symbols]

2 saddle 8 chip conveyor 9 oil pan 11a, 1
1b Scraper 12 Spring 13 Flushing liquid supply pipe 13a, 13b, 13c Nozzle

Claims (1)

[Scope of utility model registration request] 1. Scrapers for scraping chips accumulated on a chip receiving member on both sides of a moving direction of the saddle are installed at right angles to the moving direction, and are directed from the outside of the saddle to the chip discharging side on the chip receiving member. Nozzles for discharging the flushing liquid are provided at least at both stroke ends of the saddle and at substantially the center position of the stroke, and the scrapers are scraped and washed by the scraper in the flushing area of the nozzle by the movement of the saddle during the processing cycle. A device to wash away chips from a saddle mobile machine tool.