JPH055347U - Machine tool chip removal device - Google Patents

Abstract

(57) [Abstract] [Purpose] To automatically remove the chips adhering to the workpiece and the workpiece gripper with a simple and inexpensive structure. [Configuration] A plurality of tool indexing positions T1 on the turret tool base 6
~ T6 is set, and the tool 14 is attached to each position via the holder 13. A cutting fluid nozzle 15 that discharges the cutting fluid toward the tool 14 is attached to the holder 13. A nozzle indexing position T7 is set midway between the tool indexing positions T1 and T6, and a turret tool table 6 at that position is provided with a cleaning nozzle 18 for discharging cutting fluid toward the workpiece. The cutting fluid nozzle 15 and the cleaning nozzle 18 are connected to a common cutting fluid supply source via the branch passage 16 and the distributor 11. At the end of cutting, the turret tool base 6
Is indexed to the nozzle indexing position T7, and the cutting fluid discharged from the cleaning nozzle 18 is used to clean and remove the chips adhering to the workpiece and the workpiece gripping tool.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a working machine provided with a turret tool stand such as an NC lathe or a turning center, and more particularly to a device for removing chips adhering to a workpiece and a workpiece gripping tool.

[0002]

[Prior Art]

 Generally, in this type of machine tool, it is necessary to remove the chips adhering to the workpiece and the workpiece gripping tool inside the machine at the end of the cutting process. Conventionally, as shown in FIG. 4, an operator holds the nozzle 31 by hand and discharges cutting fluid or pressurized air toward the workpiece W and the claw 19 of the chuck 17, and the chips adhering to them. Was removed. Further, conventionally, in an automatic machine equipped with a workpiece attaching / detaching device, a nozzle is provided so as to be movable between a position approaching a cutting position and a position retracted from the cutting position, and a fluid is discharged at the approaching position to generate chips. A chip removing device configured to remove automatically is also known.

[0003]

[Problems to be solved by the device]

 However, in the case of manual removal, the worker had to be there at all times, which hindered automation and labor saving. Further, the conventional automatic chip removing device requires a complicated nozzle moving mechanism to be separately attached, which makes the device expensive and easily causes a trouble. Therefore, an object of the present invention is to provide a chip removing device capable of automatically removing chips adhering to a workpiece and a workpiece gripping tool with a simple and inexpensive structure.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the chip removing device of the present invention sets a plurality of tool indexing positions on a turret tool base and indexes the tools attached at each tool indexing position to the cutting position for machining. In a machine tool that cuts objects, a nozzle indexing position is set midway between adjacent tool indexing positions, and a turret tool base at this nozzle indexing position is provided with a cleaning nozzle that discharges fluid toward the workpiece. To be done.

[0005]

[Action]

 According to the chip removing device of this invention, when the cutting process is completed, the turret tool base is indexed to the nozzle indexing position, the fluid is discharged from the cleaning nozzle toward the workpiece, and the workpiece and the workpiece. The chips adhering to the gripping tool are removed. Therefore, it is not necessary to separately provide a nozzle device, and the chips can be automatically removed with a simple and inexpensive structure in which a cleaning nozzle is provided on the turret tool base.

[0006]

【Example】

 An embodiment embodying the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a turret tool rest equipped with a chip removing device according to an embodiment of the present invention, FIG. 2 is a sectional view showing the internal structure of a tool rest equipped with the turret tool rest of FIG. 1, and FIG. It is explanatory drawing explaining a chip removal operation by fracture | rupturing a part of turret tool stand of FIG. 1 in a nozzle indexing position. As shown in FIG. 2, a turning shaft 2 is supported by a tool rest 1 installed on an NC lathe or a turning center, and is turned by a turning motor 3 via a pinion 4 and a gear 5. A turret tool rest 6 is attached to the tip of the swivel shaft 2 and is indexed on the front face of the tool rest 1 via an index coupling 7. Further, a cutting fluid pipe 8 is inserted into the swivel shaft 2, one end of which is connected to the tool rest 1 by a rotation stopper 9 and is connected to an external cutting fluid hose 10 and the other end of which is a distributor 11 Is provided. Reference numeral 12 is a clamp cylinder that clamps the turret tool base 6 to the tool rest 1 at each indexing position.

As shown in FIG. 1, a plurality of tool indexing positions T1 to T6 are set on the turret tool base 6, and a tool (in the illustrated example 14) is attached. A cutting fluid nozzle 15 is attached to the outer surface of each holder 13 and is connected to the distributor 11 via a branch passage 16 extending inside the turret tool base 6. Then, when the turret tool base 6 is turned by a control device (not shown) at a predetermined angle and one of the tool indexing positions T1 to T6 is indexed to the cutting position, as shown in FIG. The cutting fluid nozzle 15 corresponding to the indexed position discharges the cutting fluid C toward the tool 14, and in that state, the tool 14 cuts the workpiece W held by the claw 19 of the chuck 17 shown in FIG. It is supposed to do.

On the other hand, as shown in FIG. 1, a nozzle indexing position T7 is set midway between the tool indexing positions T1 and T6, and the outer surface of the turret tool base 6 at this nozzle indexing position T7 is cleaned. The nozzle 18 is attached. The cleaning nozzle 18 is connected to the cutting fluid pipe 8 via the branch passage 16 and the distributor 11 as in the case of the cutting fluid nozzle 15. When the nozzle indexing position T7 is indexed to the cutting position as the turret tool base 6 turns, the cleaning nozzle 18 discharges the cutting fluid C toward the workpiece W as shown in FIG. The chips adhering to the workpiece W and the claws 19 of the chuck 17 can be washed and removed. Therefore, according to the chip removing device of this embodiment configured as described above, when the cutting process is completed, the nozzle indexing position T7 programmed in advance by the control device is indexed to the cutting position to perform cleaning. Since the workpiece W and the chuck 17 are cleaned by the nozzle 18, unlike the conventional case, it is not necessary to separately install a nozzle device, and the cleaning nozzle 18 is simply and inexpensively provided on the turret tool table 6. With the configuration, chips can be removed automatically. In particular, in this embodiment, since the cutting fluid supply mechanism for the cutting fluid nozzle 15 and the cleaning nozzle 18 is shared, the chip removing device can be constructed more simply. The present invention is not limited to the above-described embodiment, and is not limited to the above-described embodiments. It is also possible to change the shape and configuration as appropriate and embody them.

[0009]

[Effect of the device]

 As described in detail above, according to the present invention, the nozzle indexing position is set in the middle of the adjacent tool indexing positions, and the fluid is discharged toward the workpiece on the turret tool table at the nozzle indexing position. Since the nozzle is provided, it has an excellent effect that the chips adhering to the workpiece and the workpiece gripping tool can be automatically removed with an inexpensive structure.

[Brief description of drawings]

FIG. 1 is a front view showing a turret tool base equipped with a chip removing device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the internal structure of a tool rest provided with the turret tool rest of FIG.

FIG. 3 is an explanatory diagram illustrating a chip removing operation by a cleaning nozzle provided on the turret tool base of FIG. 1.

FIG. 4 is an explanatory diagram illustrating a conventional chip removing method.

[Explanation of symbols]

1 ... Turret 2, swivel axis 3, swivel motor, 4
・ Pinion, 5 ・ ・ Gear, 6 ・ ・ Turret tool stand, 7 ・
・ Index coupling, 8 ・ ・ Cutting liquid pipe, 9 ・ ・ Rotating stopper, 10 ・ ・ External cutting liquid hose, 11 ・ ・ Distributor, 1
2 · · Clamp cylinder, 13 · · Holder, 14 · · Tool, 15 · · Cutting fluid nozzle, 16 · · Branch passage, 17 ·
・ Chuck, 18 ・ ・ Washing nozzle, 19 ・ ・ Nail, C ・ ・
Cutting fluid, T1 to T6 ... Tool indexing position, T7 ... Nozzle indexing position, W ... Workpiece.

Claims (1)

[Claims for utility model registration] [Claim 1] A machine tool for cutting a workpiece by setting a plurality of tool indexing positions on a turret tool base and indexing the tools attached to the respective tool indexing positions to cutting positions. In the above, a nozzle indexing position is set in the middle of adjacent tool indexing positions, and a turret tool table at the nozzle indexing position is provided with a cleaning nozzle for discharging a fluid toward a workpiece. Powder removal device.