JPH0733544U - Spindle hole end face air blow device - Google Patents

Abstract

(57) [Summary] [Structure] A disk-shaped plug plate 13 capable of closing the spindle hole 3 of the tool pot 2 is provided at the tip of the air blow nozzle 12 for ejecting air A from the tip side with an appropriate gap. It is fixed and the air blow nozzle 12 is swingably supported by the nozzle support rod 14 between the retracted position and the working position. [Effect] With the plug plate 13 preventing foreign matter from entering the spindle hole 3, the air A is supplied to the plug plate 1.
The foreign substance adhering to the end surface 2a of the tool holder 2 can be blown off by the air A to be reliably removed by 3 in the radial direction, and the tool holder 2 can always be surely held without being disturbed by the foreign substance. Since it can be mounted, it is possible to improve reliability and dimensional accuracy during unmanned automatic operation of the machine tool.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a spindle hole end face air blow device for cleaning the vicinity of a spindle end face forming a spindle hole of a machine tool.

[0002]

[Prior art]

 In a conventional machine tool, as shown in FIG. 2, a tool holder 1 for holding a tool is inserted into a tapered spindle hole 3 of a tool pot 2 forming the spindle of the machine tool, and a taper portion 4 of the tool holder 1 is inserted. By bringing the outer peripheral surface into contact with the inner peripheral surface of the spindle hole 3 of the tool pot 2 and tightening the flange portion of the tool holder 1 with a clamp nut 5 screwed onto the outer periphery of the tool pot 2, the tool holder 1 is attached to the tool pot 2. I am wearing.

[0003]

[Problems to be solved by the device]

 In the conventional configuration described above, if foreign matter enters the spindle hole 3, the pressure contact state of the outer peripheral surface of the taper portion 4 of the tool holder 1 with the inner peripheral surface of the spindle hole 3 of the tool pot 2 is hindered, and a proper value is obtained. Since the surface pressure cannot be obtained, there is a problem that the tool holder 1 slips around the axis during machining. Therefore, prior to the attachment of the tool holder 1 to the tool pot 2, air is blown from the air blow pipe 6 communicating with the inner end of the spindle hole 3 of the tool pot 2 toward the opening, and the inside of the spindle hole 3 Foreign matter is removed.

However, depending on the air ejected from the inner end of the spindle hole 3, the foreign matter attached to the end surface 2a of the tool pot 2 and the pocket portion 5a of the clamp nut 5 around the spindle hole 3 should be removed. However, there is a problem that foreign matter remaining on the end face 2a and the pocket portion 5a enters the spindle hole 3 of the tool pot 2 when the tool holder 1 is mounted.

The present invention solves the above problems and provides a spindle hole end face air blow device capable of reliably removing foreign matter in the end face 2a around the opening of the spindle hole 3 in the tool holder 2 and the pocket portion 5a. The purpose is to do.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the spindle hole end face air blow device of the present invention can close the air blow nozzle that is connected to the air supply source at the base end side and ejects air from the tip side, and the spindle hole of the tool pot. It has a circular disc shape and is fixed to the tip of the air blow nozzle with a proper gap, and guides the air ejected from the air blow nozzle in the radial direction. The structure is such that it is swingably supported and has a nozzle support rod that supports the plug plate on the tip side of the air blow nozzle at the working position so as to face the spindle hole of the tool pot.

[0007]

[Action]

 With the above configuration, when cleaning is performed with the tool holder pulled out of the tool pot spindle hole, the air blow nozzle is placed facing the tool pot spindle hole, and the tip side plug plate closes the spindle hole. . In this state, air is supplied from the air supply source that communicates with the base end side of the air blow nozzle, and the air ejected from the tip side of the air blow nozzle is guided by the plug plate and diffused in the radial direction. Blow away and remove foreign matter attached to the end face of the expanding tool pot. Then, the nozzle support rod is swung to move the air blow nozzle and the plug plate away from the tool pot to the retracted position.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. Members having the same functions as those of the configuration shown in FIG. 2 are designated by the same reference numerals and the description thereof will be omitted. In FIG. 1, a spindle hole end surface air blowing device 11 comprises an air blowing nozzle 12, a plug plate 13 and a nozzle support rod 14.

The air blow nozzle 12 communicates with an air supply source (not shown) through an elastic air supply pipe 15 such as a high-pressure hose on the base end side, and expands the diameter toward the front side toward the tip side. It has a spout 12a. Further, a flange portion 12b for attaching the plug plate 13 is provided on the outer periphery of the front end of the air blow nozzle 12.

The plug plate 13 guides the air A ejected from the air blow nozzle 13 in the radial direction. The plug plate 13 has a disk shape capable of closing the spindle hole 3 of the tool pot 2, and the air ejection port of the air blow nozzle 12. The air blow nozzle 12 has a tapered protrusion 13a corresponding to 12a, and is fixed by a fixing bolt 16 with an appropriate gap α formed in the flange 12b of the air blow nozzle 12.

The nozzle support rod 14 is swung in a plane including the axis of the tool pot 2 by a driving means (not shown) such as an air cylinder, so that the air blow nozzle 12 and the plug plate 13 are spread over the retracted position and the working position. In the working position, the air blow nozzle 12 is supported with the plug plate 13 on the tip side facing the spindle hole 3 of the tool pot 2.

The operation of the above configuration will be described below. At the time of cleaning, in a state where the tool holder 1 is pulled out from the spindle hole 3 of the tool pot 2, the air blow nozzle 12 is arranged so as to face the spindle hole 3 of the tool pot 2, and the spindle hole 3 is opened by the plug plate 13 on the tip side. Block. In this state, air is supplied from the air supply source (not shown) to the air blow nozzle 12 through the air supply pipe 15, and the air A is ejected from the air ejection port 12a at the front end of the air blow nozzle 12. The air A spreads radially along the surface of the protrusion 13a at the air outlet 12a, and also spreads radially from the peripheral edge of the plug plate 13 through the gap α and spreads around the plug plate 13. Foreign matter such as cutting chips of the workpiece adhered to the end surface 2a of the tool pot 2 and the pocket portion 5a of the clamp nut 5 is blown off and removed. Next, the nozzle support rod 14 is swung by a driving means (not shown) to separate the air blow nozzle 12 and the plug plate 13 from the tool pot 2 and move them to the retracted position.

After that, air is blown from the air blow pipe 6 communicating with the inner end of the spindle hole 3 of the tool pot 2 toward the opening to remove foreign matters in the spindle hole 3.

[0014]

[Effect of device]

 As described above, according to the present invention, the plug plate prevents foreign matter from entering the spindle hole, and air is diffused in the radial direction by the plug plate to remove foreign matter adhered to the end face of the tool holder. It can be blown off and removed reliably, and the tool holder can always be reliably attached to the tool pot without being obstructed by foreign matter, improving reliability and dimension during unmanned automatic operation of machine tools. The accuracy can be improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a spindle hole end surface air blowing device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the structure of a conventional tool pot.

[Explanation of symbols]

 2 Tool pot 3 Spindle hole 11 Spindle hole end face air blow device 12 Air blow nozzle 13 Plug plate 14 Nozzle support rod

Claims (1)

[Scope of utility model registration request] 1. An air blow nozzle having a base end side communicating with an air supply source and ejecting air from the tip end side, and a disc-like shape capable of closing a spindle hole of a tool pot, and an appropriate gap at the tip end of the air blow nozzle. Open and secure the plug, which guides the air ejected from the air blow nozzle in the radial direction, and the air blow nozzle that is swingably supported between the retracted position and the working position. An air blower for an end surface of a spindle hole, comprising: a nozzle support rod that supports a plug plate so as to face the spindle hole of a tool pot.