JPH0720234U - Auxiliary device for chip conveyor - Google Patents

Abstract

(57) [Summary] [Object] The present invention is an auxiliary device that is attached to a chip conveyor that discharges chips generated by processing a workpiece with a machine tool such as a lathe. The purpose is to separate the liquid and prevent unnecessary drainage of the liquid. [Structure] A chute that is swingably supported around a horizontal axis below the chip discharge port of the chip conveyor, a tray part that accumulates chips and guides them to the chip discharge part, and a liquid recovery liquid. A liquid guide part for guiding the liquid to the nozzle part and a liquid passage part for flowing only the liquid from the chips accumulated in the tray part to the liquid guide part, and separating the liquid from the chips and guiding the liquid. A chip conveyor auxiliary device comprising a chute swinging means for swinging the chute at a position and a second position for guiding the chips to the chip collecting portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a chip conveyor for discharging chips generated by processing a workpiece with a machine tool such as a lathe.

[0002]

[Prior art]

 Chip conveyors are used to discharge chips in general machine tools that process workpieces and generate chips. In the conventional case, a chip conveyor as shown in Fig. 7 was used. A pair of shafts 2a and 2b are rotatably supported on the chip conveyor body 1. Sprockets 3a and 4a are fixed to both ends of the shaft 2a so that they can rotate together with the shaft 2a. Similarly, sprockets 3b and 4b are fixed to both ends of the shaft 2b so that they can rotate together with the shaft 2b. Further, the endless chain 5a is hung on the sprockets 3a and 3b, and similarly, the endless chain 5b is hung on the sprockets 4a and 4b.

The shaft 2a is driven to rotate in the direction of arrow T1 by a drive device (not shown), and drives the sprockets 3b and 4b through the sprockets 3a and 4a and the endless chains 5a and 5b, thereby driving the endless motion. The chains 5a and 5b are circularly moved in the direction of arrow T2. Angles 6, which are a plurality of L-shaped members, are supported in parallel on the endless chains 5a and 5b so as to be bridged over the endless chains 5a and 5b, and the tip ends are circulated as the endless chains 5a and 5b move. The conveyor body 1 is circulated and moved. Below the chip discharge port 8, a chute 9 for supporting the chip P into the chip carriage 14 is supported. A coolant collecting section 10 is provided above the chute 9. The coolant recovery unit 10 is a box-shaped container having an upper opening, and collects the coolant liquid C carried together with the chips P, and the coolant liquid C is cooled through a drain pipe 12 provided on the bottom surface. It is designed to be returned to the tank 15. A guard plate 11, which is an L-shaped bent plate member, is provided above the coolant recovery unit 10 with a gap that prevents chips from passing through, and is fixed to the coolant recovery unit 10 with a lid. The coolant liquid C is guided to the coolant recovery unit 10 and the cutting chips P are prevented from being mixed into the coolant recovery unit 10.

Then, the chips P that have entered the chip conveyor main body 1 from the chip inlet 7 are carried to the chip discharge port 8 so as to be extruded by the circulation of the angle part 6, and then to the suit 9. It fell and was discharged to the chip carrier 14.

[0005]

[Problems to be solved by the device]

 However, the coolant recovery unit 10 of the conventional chip conveyor described above has the problems described below. That is, the chips P to which the coolant liquid C adheres pass through the coolant recovery unit 10 quickly, and the coolant liquid C cannot be sufficiently recovered, and a large amount of the coolant liquid C is discharged to the chip carrier 14. Further, there is a problem in that the coolant liquid C attached to the angle 6 or the chip discharge port 8 and directly falling on the chute 9 cannot be collected.

Therefore, an object of the present invention is to provide an auxiliary device for a chip conveyor that collects the coolant liquid C discharged from the chip discharge port in order to solve the above-mentioned problems.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the chips attached to a chip conveyor that discharges the chips generated by machining a workpiece with a machine tool such as a lathe In the auxiliary device of the chip conveyor, which guides the chips from which the liquid has been separated to a chip collecting unit, and further incorporates the liquid separated from the chips to which the liquid has adhered into the liquid collecting unit, A chute capable of swinging around a horizontal axis is provided below the chip discharge port, and at one end of the chute, the accumulation of the chip adhered with the liquid discharged from the chip discharge port and the cutting chip The tray part for guiding to the chip collecting part is provided, and the liquid guide part for guiding the liquid separated from the chip to the liquid collecting part is provided at the other end of the chute, and the tray part and the Liquid plan A liquid passage part for flowing only the liquid separated from the chips accumulated in the tray part to the liquid guide part is provided at the boundary part of the tray, and the chute is inclined so that the tray part faces upward, A first position for accumulating chips with the liquid adhering to the tray part and guiding the liquid separated by the liquid passage part to the liquid guide part; and the chute so that the tray part faces downward. And a chute oscillating means that oscillates the chute to a second position for guiding the separated chips of the liquid accumulated in the tray part to the chip collecting part.

[0008]

[Action]

 First, the chute swinging means tilts the chute to the first position where the tray portion faces upward so that chips can be accumulated in the tray portion. When machining of the machine tool is started, chips adhering to liquid such as coolant are carried to the discharge port by the chip conveyor and fall on the tray part of the chute. The chips falling on the chute are accumulated by the tray part and the liquid passing part due to the inclination of the chute, and the liquid adhering to the chips passes through the liquid passing part and is guided to the liquid guiding part. The liquid guided inside the liquid proposal is further guided to the liquid recovery unit and recovered.

Further, when the chips accumulated in the tray part of the chute and the separated liquid reach a certain amount, the chute swinging means tilts the chute to a second position where the tray part faces downward. Then, the chips accumulated in the tray section are guided to the chip collecting section and collected. After the chips have been collected, tilt the chute to the first position and repeat the above.

[0010]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram showing a case in which the chip conveyor auxiliary device of the present invention is applied to a lathe. In FIG. 1, a support 111 and a support 112 are fixed on the bed 110. A horizontal feed table 120 is supported on the support base 111 so as to be movable in the horizontal direction in the drawing, and the horizontal feed table 120 is slidable in the horizontal direction in the drawing by a feed screw mechanism (not shown) driven by a horizontal feed motor 121. It has become.

On a headstock 123 fixed on the transverse feed table 120, a spindle 125 having a chuck 124 for supporting a workpiece W mounted at its tip is rotationally driven by a spindle motor 126. A vertical feed table 130 is supported on the support table 112 so as to be movable in the vertical direction in the drawing, and the vertical feed table 130 is slid in the vertical direction in the drawing by a feed screw mechanism (not shown) driven by a vertical feed motor 131. It is movable.

A bite 134 is replaceably attached to a tool rest 135 fixed on the vertical feed table 130, and the workpiece W is cut by the mutual movement of the horizontal feed table 120 and the vertical feed table 130 described above. It is possible. Inside the bed 110, a coolant tank 15 for storing the coolant liquid C is installed on the floor, and above the coolant tank 15, the chip conveyor body 1 is installed. The coolant tank 15 and the chip conveyor body 1 are connected by a coolant discharge port 140, and the coolant liquid C that has entered the chip conveyor body 1 is returned to the coolant tank 15. Further, the bed 110 is provided with a chip entrance portion 7 so that the chips P and the coolant liquid C generated during processing are dropped into the chip conveyor main body 1. Then, the chips P are conveyed by the chip conveyor main body 1 and discharged to the chip carriage 14.

A pair of shafts 2 a and 2 b are rotatably supported on the chip conveyor body 1. Sprockets 3a and 4a are fixed to both ends of the shaft 2a and are rotatable together with the shaft 2a. Similarly, sprockets 3b and 4b are fixed to both ends of the shaft 2b so as to be rotatable together with the shaft 2b. An endless chain 5a is hung on the sprockets 3a and 3b, and an endless chain 5b is also hung on the sprockets 4a and 4b. The shaft 2a is rotationally driven in the direction of arrow T1 by a drive device (not shown). Then, the sprockets 3b and 4b are driven and driven by the sprockets 3a and 4a and the endless chains 5a and 5b, and the endless chains 5a and 5b are circularly moved in the direction of arrow T2. Further, a plurality of angles 6 which are L-shaped members are supported in parallel so as to span the endless chain 5a and the endless chain 5b. It is designed to move in a circular manner.

Then, the chips P that have entered from the chip inlet portion 7 of the chip conveyor body 1 are pushed to the angle 6 by the circulation of the angle 6 so that they are conveyed to the chip discharge port 8. It has become. Next, the construction of a chip conveyor assisting apparatus according to an embodiment of the present invention will be described with reference to FIGS. 2, 3 and 4. 2 and 3 are configuration diagrams of an auxiliary device of the chip conveyor according to the present embodiment. FIG. 2 shows a chute 50 described later when the chute 50 is tilted to the first position, and FIG. There is a description when the is tilted to the second position. FIG. 4 is a side view of FIG.

The chute 50 located below the chip discharge port 8 is a plate provided with guard portions 50 c whose both ends are bent, and is partitioned by a liquid passage member 51 into a tray portion 50 a and a liquid guide portion 50 b. . The tray portion 50a is formed by inclining the chute 50 as will be described later, thereby accumulating the chips P with the coolant liquid C discharged from the chip discharge port 8 and separating the coolant liquid C from the chips P. Guides to the shavings truck 14. The liquid passage portion 51 is formed with a plurality of holes 51a for separating the coolant liquid C from the chips P to which the coolant liquid C accumulated in the tray portion 50a adheres, and only the separated coolant liquid C is formed. The liquid is guided to the liquid guide portion 50b. The liquid guide portion 50b is configured to guide the coolant liquid C drained from the liquid passage portion 51 to a liquid recovery portion described later, and the guard portion 50c from the tray portion 50a and the liquid recovery portion 50b to the chips P and the coolant. It is designed to prevent the liquid C from falling sideways.

Then, from the first position (state of FIG. 2) in which the tip of the tray portion 50a is directed upward, the tray portion 50b is attached to the shoot support member 52 in which the chute portion 50 is fixed to the chip conveyor main body 1. It is swingably supported to a second downward position (state in FIG. 3). A weight 53 is fixed on the liquid guide portion 50b of the chute 50. Normally, the chute 50 is held at the first position, and the weight of the chips P accumulated in the tray portion 50a becomes the weight of the weight 53. The shoot 50 swings to the second position when it is overcome.

Below the chute 50, a liquid recovery part 54, which is a tray for recovering the coolant liquid C guided by the liquid guide part 50 b, is fixed to the chip conveyor body 1 by a liquid recovery part support member 55. The bottom surface of the liquid recovery unit 54 is inclined, and the coolant liquid C is collected in the drain pipe 56 provided at the lower end of the bottom surface of the liquid recovery unit 54, and the coolant liquid C is transferred to the coolant tank 15 via the drain pipe 56. It is supposed to be returned.

The operation of this embodiment will be described with the above configuration. Now, it is assumed that there is no chip P on the chute 50 and the chute 50 is in the first position (solid line position in FIG. 4) in which the tip of the tray portion 50a is inclined upward by the weight 53. The horizontal feed motor 111, the vertical feed motor 131, and the spindle motor 126 of the lathe 100 are driven to process the workpiece W. Then, the chips P generated during the processing fall into the chip conveyor main body 1 from the chip inlet portion 7 provided in the bed 110. At this time, since the coolant liquid C is simultaneously ejected from the coolant supply device (not shown), the coolant liquid C also drops into the chip conveyor body 1. Then, most of the coolant liquid C is returned to the coolant tank 15 from the coolant drain port 140, but the remaining coolant liquid C is attached to the chips P, the angles 6 and the endless chains 5a and 5b.

The chips P to which the coolant C adheres are carried to the chips discharge outlet 8 in a form of being pushed out by the angle 6 and fall to the tray portion 50 a of the chute 50. The chips P to which the coolant liquid C adheres, which have fallen onto the tray portion 50a, are accumulated on the chute 50 by the tray portion 50a, the guard portion 50c, and the liquid passage portion 51 due to the inclination of the chute 50 at the first position. At this time, the coolant liquid C adhering to the chips P is guided on the tray portion 50 in the direction of the liquid passage portion 51 by the inclination of the chute portion 50, and passes through the hole 51a provided in the liquid passage portion 51 to guide the liquid. It is drained to the part 50b. Then, the coolant liquid C drained to the liquid guide portion 50b is guided by the liquid pair guide portion 50b, collected in the liquid collecting portion 54, and returned to the coolant tank 14 via the drain pipe 56.

When the machining is continued and the own weight of the chips P accumulated in the chute 50 overcomes the own weight of the weight, the chute 50 is inclined by the own weight of the chips P downwardly at the tip of the tray portion 50a. It is swung to a position (position indicated by a chain double-dashed line in FIG. 4). Then, the chips P accumulated in the tray section 50 a are guided to the tray section 50 a and discharged to the chip truck 14. The chute 50 from which most of the chips P have been discharged returns to the first position again by the action of the weight 53. The above operation is repeated, and the chips from which the coolant liquid C has been separated from the chips P are discharged.

As described above, the auxiliary device for the chip conveyor according to the present embodiment is provided with the first position for separating the coolant liquid C from the cutting chips and the chips for separating the coolant liquid C from the chip carrier. By providing the swingable chute 50 in the second position for guiding to 14, the coolant C adhering to the chips can be sufficiently separated and the chips can be discharged. Further, the auxiliary device for the chip conveyor of the present embodiment, as the chute oscillating means, oscillates between the first position and the second position of the chute 50 by the weight 53 and the weight of the chips P, so that a special drive is performed. It is possible to swing without installing a device. On the contrary, as the chute swinging means, a swinging device between the first position and the second position of the chute is provided with a driving device such as a motor, and the chute portion is rocked at regular intervals or the operating time of the machine tool. You may make it move.

Further, since the tray portion 50a of the present embodiment has a length such that the tray portion 50a is sufficiently projected from the chip discharge port 8, it is possible to collect the coolant liquid C directly falling from the angle 6 or the like. ing. In the embodiment described above, the liquid passage portion 51 is a plate having a plurality of holes 51a. However, it is sufficient that only the liquid such as the coolant liquid C can be passed through, for example, a wire mesh or a slit. Absent.

[0023]

[Effect of device]

 As described above, according to the present invention, the first position for accumulating chips in the tray part and separating the liquid such as the coolant liquid adhering to the chips by the liquid passage part and the separated chips of the liquid are provided. By providing the chute oscillating means for oscillating the chute at the second position for guiding to the chip collecting portion, it is possible to sufficiently separate the liquid such as the coolant liquid adhering to the chips and to remove unnecessary liquid. It has the effect of preventing disposal. In addition, the present invention has the advantages that it is constructed with a very simple mechanism, can be manufactured at low cost, and can be attached to any type of chip conveyor.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a lathe having an auxiliary device for a chip conveyor according to an embodiment of the present invention.

FIG. 2 is a perspective view of an auxiliary device for a chip conveyor according to an embodiment of the present invention, in which the chute is located at a first position.

FIG. 3 is a perspective view of an auxiliary device of a chip conveyor according to an embodiment of the present invention, showing a chute in a second position.

FIG. 4 is a side view of an auxiliary device for a chip conveyor according to an embodiment of the present invention.

FIG. 5 is a diagram showing a conventional technique.

[Explanation of symbols]

 1 Chip conveyor body 6 Angle 8 Chip discharge port 14 Chip carrier 15 Coolant tank 50 Chute 50a Tray part 50b Liquid guide part 51 Liquid passing part 51a Hole 52 Chute support member 53 Weight 54 Liquid collecting part P Chip C Coolant liquid

Claims (1)

[Scope of utility model registration request] 1. A swarf attached to a chip conveyor for discharging swarf generated by processing a workpiece with a machine tool such as a lathe and separating the liquid from the swarf to which a liquid such as a coolant liquid adheres. In the chip conveyor auxiliary device for guiding the liquid separated from the chips adhering to the liquid to the liquid recovery unit, in a horizontal direction below the chip discharge port of the chip conveyor. A chute capable of swinging around an axis is provided, and at one end of the chute, accumulation of chips attached with the liquid discharged from the chip discharge port and guidance of the chips to the chip collecting unit. And a liquid guide part for guiding the liquid separated from the chips to the liquid recovery part at the other end of the chute, and the tray is provided at the boundary between the tray part and the liquid guide part. To the department Provided is a liquid passage part for flowing only the liquid separated from the accumulated chips into the liquid guide part, inclining the chute so that the tray part faces upward, and removing the chips to which the liquid adheres from the liquid. A first position for accumulating in the tray part and guiding the liquid separated by the liquid passage part to the liquid guide part, and an inclination of the chute so that the tray part faces downward, and accumulating in the tray part. An auxiliary device for a chip conveyor, comprising a chute oscillating means for oscillating the chute at a second position for guiding the separated chips of the separated liquid to the chip collecting portion.