JPH0516078U - Chip remover - Google Patents

Abstract

(57) [Summary] [Objective] By effectively utilizing the vacuum means and the air blow means, chips are reliably removed from the blind hole without scattering to the work place. [Constitution] In a device for removing chips remaining in a blind hole w1 formed by cutting in a workpiece W, the blind hole w of the workpiece W is
A cover body 7 for covering 1 to seal the blind hole w1, an air blow means 5 for injecting air into the blind hole w1 sealed by the cover body 7, and a blind hole w1 sealed by the cover body 7. And a vacuuming device 9 for vacuuming the inside.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to improvements in a chip removing device.

[0002]

[Prior Art]

 Chips are generated when a work is cut to form a blind hole for inserting a bolt. If the chips remain in the blind holes, the bolts may not enter the blind holes sufficiently, which may result in fastening failure. Therefore, in general, the vacuum hose is generally inserted inside the blind hole after cutting and the chips are sucked out.

[0003]

[Problems to be solved by the device]

 However, with the above-mentioned conventional method, if the cutting chips are deep inside the blind hole, or if the cutting oil is stuck to the inner wall of the blind hole, etc., the above chips must be reliably removed from the blind hole. There was a problem that I could not do it. Therefore, it is conceivable that after the chips are sucked out as described above, the remaining chips are blown by blowing air into the blind holes. However, in this case, the blown chips are scattered in the work place, which is not preferable in the work environment.

The present invention has been made in view of the above points, and an object thereof is to effectively disperse the cutting means and the air blowing means of the above-mentioned conventional example to scatter the cutting chips to the work place. To ensure removal from the blind hole without doing so.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the solution means of the present invention is a cover body for covering a blind hole of a work and closing the blind hole in a device for removing chips remaining in the blind hole formed in a work. To provide. Further, air blow means for injecting air is provided inside the blind hole sealed by the cover body. Further, vacuuming means for vacuuming the inside of the blind hole sealed by the cover body is provided.

[0006]

[Action]

 With the above structure, according to the present invention, air is blown into the blind hole covered by the cover body and sealed by the air blowing means, so that the inner wall of the blind hole is exposed to the cutting chips and cutting oil inside the blind hole. The blown pressure reliably blows the shavings off the inner wall of the blind hole. Furthermore, since the inside of the blind hole is sealed by the cover body and vacuumed by the vacuuming means, the blown chips are reliably removed from the blind hole, and the chips are not scattered to the work place. It will be surely prevented and the working environment will be improved.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a chip removing apparatus according to an embodiment of the present invention for removing chips (not shown) remaining in a blind hole w1 for inserting a bolt formed by cutting in a work W. Reference numeral 1 is a pressing cylinder having a piston rod 1a extending downward. A shaft member 2 having an air passage 2a extending downward is connected to the tip (lower end) of the piston rod 1a of the pressing cylinder 1. An air nozzle 3 is connected to the lower end of 2. The air passage 2a of the shaft member 2 is connected to an air supply source 4, supplies air from the air supply source 4 to the air nozzle 3 through the air passage 2a, and is sealed from the air nozzle 3 by a cover body 7 described later. The work W is injected into the blind hole w1. Therefore, the shaft member 2, the air nozzle 3, and the air supply source 4 constitute an air blow means 5 for injecting air into the blind hole w1 sealed by the cover body 7.

A ring groove 2b is formed at the lower end of the shaft member 2, and a retaining ring 6 is externally fitted in the ring groove 2b. Further, a cylindrical cover body 7 is movably inserted in the shaft member 2, and the cover body 7 is suspended and supported by the shaft member 2 by the retaining ring 6 so as not to separate. A coil spring 8 is contracted around the outer periphery of the shaft member 2 so that the coil spring 8 always urges the cover body 7 downward. The cover body 7 is moved downward by the extension operation of the pressing cylinder 1, and the lower end thereof is pressed around the blind hole w1 cut and formed in the work W to cover the blind hole w1 and cover the blind hole w1. It is designed to be hermetically sealed. Further, in a state in which the cover body 7 is pressed around the blind hole w1, the shaft member 2 is moved downward against the spring force of the coil spring 8 by the further extension operation of the pressing cylinder 1, and is shown by an imaginary line. As described above, the air nozzle 3 is inserted into the blind hole w1 so that the tip of the nozzle is brought close to the inner part of the blind hole w1.

Further, a discharge hole 7a is formed on the peripheral surface of the cover body 7, and the discharge hole 7a is connected to a vacuuming device 9 as a vacuum drawing means and is closed by the cover body 7. The inside of the blind hole w1 of W is evacuated. An O-ring 10 is attached to the lower end of the shaft member 2 so as to maintain a sealed state inside the blind hole w1 when the cover body 7 is pressed around the blind hole w1.

As described above, in this embodiment, the blind hole w1 of the work W is covered with the cover body 7 to hermetically seal the inside, and the air is supplied from the air supply source 4 to the air passage 2a and the air nozzle 3 inside the blind hole w1. Since it is injected through the blind hole w1, it is possible to reliably blow off the chips clinging to the inner wall of the blind hole w1 by the blow pressure with the chips and cutting oil in the inner part of the blind hole w1 by the blow pressure. it can. Further, since the inside of the blind hole w1 is sealed with the cover body 7 and the vacuum is drawn by the vacuuming device 9, the blown chips can be surely removed from the blind hole w1 and the working place of the chip is It is possible to surely prevent the dispersion to the work environment and improve the working environment.

Further, in the above embodiment, when the air blow is performed, the shaft member 2 is moved downward against the spring force of the coil spring 8 by the further extension operation of the pressing cylinder 1, so that the tip of the air nozzle 3 is placed inside the blind hole w1. It can be inserted deeply, whereby the air can be effectively blown to the chips remaining in the inner part of the blind hole w1 and the chip removal work can be carried out more reliably.

[0013]

[Effect of the device]

 As described above, according to the present invention, air is blown into the blind hole and the inside of the blind hole is evacuated while the blind hole formed in the work is covered with the cover body and the inside is sealed. Therefore, the chips can be surely blown off from the inner wall of the blind hole, and can be reliably removed from the blind hole without being scattered to the work place.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a chip removing device.

[Explanation of symbols]

 5 ... Air blow means 7 ... Cover body 9 ... Vacuum evacuation device (vacuum evacuation means) W ... Work w1 ... Blind hole

Claims (1)

[Scope of utility model registration request] 1. A device for removing chips remaining in a blind hole formed in a workpiece, the cover body covering the blind hole of the workpiece and sealing the blind hole, and a device sealed by the cover body. A chip removing device comprising: an air blow unit for injecting air into the blind hole; and a vacuuming unit for vacuuming the inside of the blind hole sealed by the cover body.