JP2019150924A - Chip scattering prevention tool for drill - Google Patents

Abstract

To provide a chip scattering prevention tool for a drill easy in handling, and capable of further surely preventing scattering of chips.SOLUTION: A chip scattering prevention tool comprises a chip storage body 2 having a lid part 22 on one end in a cylindrical shape and forming a blade insertion hole 22a capable of inserting a drill blade 102 into the lid part 22, a magnetic body 3 freely slidable in the axial direction of the chip storage body 2 by covering an outer peripheral surface of the chip storage body 2 in the cylindrical shape constituted of a magnet and a separation prevention mechanism for preventing the chip storage body 2 and the magnetic body 3 from separating, and in a state of overlapping the magnetic body 3 with the chip storage body 2, chips 100a in the chip storage body 2 stick to an inner peripheral surface of the chip storage body 2 by magnetic force of the magnetic body 3, and when dislocating the magnetic body 3 from the chip storage body 2, the chips 100a separate from the chip storage body 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a drill dust scattering preventive tool for preventing chips generated when a magnetic material is shaved with a drill blade.

  For example, when drilling holes in an iron plate (magnetic material) with an electric drill, chips and iron scraps may scatter and damage the surroundings, and may injure workers. It takes time and effort. Conventionally, it has been practiced to attach a bag to an iron plate, which is a workpiece, so that the chips enter the bag, but not only is it time-consuming, but also puts all the chips into the bag. Is difficult, and some chips are scattered around.

  For this reason, the chip removal apparatus of preventing scattering of the chip by magnetic force is known (for example, refer patent document 1). This device includes a cylindrical portion that covers a drilled portion of iron material, a magnet that is provided outside the cylindrical portion, and that adsorbs chips generated inside the cylindrical portion to the inner wall of the cylindrical portion, and the magnet is separated from the cylindrical portion. And a main body on which the cylindrical portion and the separation mechanism are installed.

JP 2010-228026 A

  By the way, when drilling with an electric drill, a wide variety of workpieces are targeted, and for example, there are cases where it is necessary to perform work at a high place, and in such cases, it may be easy to carry and handle. desired. However, the chip removal device described in Patent Document 1 includes a block-like movable support portion, a rotating plate, a link mechanism, and the like as a separation mechanism, and is a heavy and complicated structure. However, it may be difficult to secure a place for installation.

  Accordingly, an object of the present invention is to provide a cutting dust scattering prevention tool for a drill that is easy to handle and that can more reliably prevent the scattering of cutting chips.

  In order to solve the above-mentioned problems, the invention of claim 1 is a drill dust scattering prevention device for preventing dust scattering when a magnetic body is shaved with a drill blade, and is cylindrical and has a lid at one end. A chip container in which a blade insertion hole into which the drill blade can be inserted is formed in the lid, and a cylindrical shape made of a magnet, covering an outer peripheral surface of the chip container, A magnetic adherend that is slidable in the axial direction of the powder container, and a detachment preventing mechanism that prevents the chip container and the magnetic adherend from separating, wherein the magnetic adherend contains the chip. In a state of overlapping with the body, the chips in the chip container are attached to the inner peripheral surface of the chip container by the magnetic force of the magnetized body, and when the magnetized body is shifted from the chip container, The chips are separated from the chip container.

  According to the present invention, when the magnetic body is stacked on the chip container and the magnetic body is cut by inserting the drill blade into the blade insertion hole, the generated chip is contained by the magnetic force of the magnetic body. It adheres to the inner peripheral surface of the body and does not scatter outside. Further, when the magnetic adherend is shifted from the chip container after the magnetic body has been shaved, the chip is separated from the chip container and discarded.

  Invention of Claim 2 is equipped with the temporary holding mechanism which temporarily hold | maintains the state with which the said magnetic adherend overlapped with the said chip | tip containing body in the chip dust scattering prevention tool of Claim 1 characterized by the above-mentioned. To do.

  According to a third aspect of the present invention, in the chip dust scattering preventive device according to the first or second aspect, the separation preventing mechanism is provided on an outer peripheral surface of the chip accommodating body or an inner peripheral surface of the magnetized body. , A concave guide groove extending in the axial direction, stopper portions provided at both ends of the guide groove, an inner peripheral surface of the magnetized body or an outer peripheral surface of the chip container, and slidable in the guide groove And a protrusion portion that fits into the stopper portion, and the protrusion portion abuts against the stopper portion to prevent the chip container and the magnetized body from being detached.

  Invention of Claim 4 is the chip | tip scattering prevention tool for drills of Claims 1-3. WHEREIN: The cover part of the said chip accommodating body can see through the inside of the said chip accommodating body. It is characterized by.

  According to invention of Claim 1, in the state which piled up the magnetic adherend on the chip container, since the chip adheres to the inner peripheral surface of the chip container, the scattering of the chip is prevented. If the magnetic adherend is shifted from the chip container, the chips can be discarded. In this way, the chip can be easily collected and discarded by simply stacking or shifting the magnetic adherend on the chip container, and handling is easy. In addition, since the chip container and the magnetized body are not separated by the separation preventing mechanism, it is possible to prevent cutting with only the chip container without attaching the magnetized body. In addition, it is possible to prevent chips from being scattered.

  According to the invention of claim 2, the temporary holding mechanism temporarily holds the magnetized body overlaid on the chip container, so that the magnetized body may deviate from the chip container during cutting of the magnetic body. It is possible to prevent the chips from being scattered more reliably. In addition, when moving the chip dust prevention tool for drilling after the magnetic material has been shaved, the magnetized body may be inadvertently displaced from the chip container and the chip may be separated from the chip container. Can be prevented.

  According to the invention of claim 3, because of the simple structure in which the separation preventing mechanism is configured only by the guide groove provided with the stopper portions at both ends and the projection portion slidably fitted in the guide groove, Maintenance and the like are facilitated, and production costs can be reduced.

  According to invention of Claim 4, since the inside of a chip container can be seen through from the cover part of a chip container, the cutting position and cutting condition of a magnetic body can be visually confirmed, etc., and cutting work is performed satisfactorily. Can be performed.

It is a front view which shows the use condition of the chip dust scattering prevention tool for drills concerning embodiment of this invention. It is front sectional drawing (a) of the chip dust scattering prevention tool for drills of FIG. 1, and its right view (b). FIG. 2 is an enlarged cross-sectional view showing the periphery of a temporary holding mechanism of the drill chip scattering prevention tool of FIG. 1. It is a front view which shows the state which discards a chip from the chip scattering prevention tool for drills of FIG.

  The present invention will be described below based on the illustrated embodiments.

  1 to 4 show an embodiment of the present invention, and FIG. 1 is a front view showing a use state of a cutting dust scattering preventing tool 1 according to this embodiment. This drill dust scattering prevention tool 1 is an auxiliary tool for preventing the scattering of the chips 100a generated when a magnetic body as a workpiece is shaved with the drill blade 102. The magnetized body 3 is provided with a separation preventing mechanism and a temporary holding mechanism. Here, in this embodiment, the case where the iron plate 100 is a magnetic body and a hole is formed in the iron plate 100 with the hand-held electric drill 101 will be described as an example.

  The chip container 2 is a non-magnetic material made of resin and has a covered cylindrical shape as shown in FIG. That is, a blade insertion hole 22 a into which the drill blade 102 can be inserted is formed at the center of the lid portion 22 in a cup shape in which the lid portion 22 is provided at one end of the cylindrical portion 21. The inner diameter and the axial length of this chip container 2, that is, the cylindrical portion 21 can adhere to the inner peripheral surface of the chip container 2 by the magnetic force described later, the chip 100 a generated in the chip container 2, And it is set so that a predetermined amount of chips 100a can be adhered.

  Further, the lid portion 22 of the chip container 2 can be seen through the inside of the chip container 2. That is, in this embodiment, the cylindrical portion 21 and the lid portion 22 are made of a transparent resin, and the inside of the chip container 2 can be visually observed from the lid portion 22. Furthermore, since the cylindrical part 21 is transparent, when the magnetic adhering body 3 is shifted from the chip container 2 as described later, there is no chip 100a remaining in the cylindrical part 21 (disposing of waste). Etc.) can be confirmed.

  The magnetized body 3 is a cylinder formed of a magnet, covers the outer peripheral surface of the chip container 2, and is slidable in the axial direction of the chip container 2. That is, in the cylindrical body made of magnet, the inner diameter is set slightly larger than the outer diameter of the chip container 2, and the axial length is set to be substantially the same as the length of the chip container 2. Thereby, as shown in FIG. 2, the chip body 2 is inserted into the cylinder of the magnetic body 3, and the magnetic body 3 is stacked on the chip body 2 over the entire length, so that the magnetic body 3 is The outer peripheral surface of the chip container 2 is substantially covered. On the other hand, as shown in FIG. 4, when the magnetic adherend 3 is slid in the axial direction with respect to the chip container 2, and the magnetic adherend 3 is displaced from the chip container 2, the chip container 2 is Exposed.

  With such a configuration of the chip accommodating body 2 and the magnetic adherend 3, the drill blade 102 is inserted into the blade insertion hole 22a in a state where the magnetic adherend 3 is stacked on the chip accommodating body 2 as shown in FIG. When the iron plate 100 is shaved, the chips 100 a generated in the chip container 2 adhere to the inner peripheral surface of the chip container 2 by the magnetic force of the magnetic adherend 3. Moreover, as shown in FIG. 4, when the magnetic adherend 3 is shifted from the chip container 2 after the iron plate 100 has been shaved, the magnetic force applied to the chip container 2 is released, and the chip 100a becomes the chip container. 2 away from the open end (on the side of the cover 22) and discarded. In other words, the magnetic force of the magnetic adherend 3 and the size of the chip container 2 are set so that the chip 100a is attached and discarded.

  The detachment prevention mechanism is a mechanism that prevents the chip container 2 and the magnetized body 3 from separating and separating. The detachment prevention mechanism includes a guide groove 21a provided with stopper portions 21b and 23 at both ends, and the guide groove 21a. It is comprised by the projection part 31 fitted so that sliding is possible. That is, in this embodiment, as shown in FIG. 2, a concave guide groove 21 a extending in the axial direction is formed on the outer peripheral surface of the chip container 2. The guide groove 21a extends from the end surface of the lid portion 22 toward the opening end side of the cylindrical portion 21 and is formed up to the opening end side (not formed up to the opening end), so that the first stopper is formed on the opening end side. A portion 21b is provided. Further, a second stopper portion 23 that fits into the guide groove 21a is attached to the lid portion 22 side of the guide groove 21a.

  On the other hand, on the inner peripheral surface of the magnetized body 3 on the first stopper portion 21b side in a state where the magnetized body 3 is stacked on the chip accommodating body 2, the inner surface protrudes inward of the cylinder and is slidably fitted into the guide groove 21a. A protruding portion 31 is attached. Then, when the magnetized body 3 is slid toward the lid portion 22 with respect to the chip container 2, the protrusion 31 moves while fitting into the guide groove 21 a, and the protrusion 31 moves to the second stopper portion 23. Abut. Similarly, when the magnetic adhering body 3 is slid toward the counter lid portion 22 with respect to the chip container 2, the protruding portion 31 comes into contact with the first stopper portion 21b. In this way, the chip 31 is sandwiched between the stoppers 21b and 23 and comes into contact with each other, whereby the chip container 2 and the magnetic body 3 are separated (the chip body 2 comes out of the magnetic body 3). ) Is prevented.

  Here, in order to assemble the chip container 2 and the magnetic body 3, first, the projection 31 is fitted into the guide groove 21 a before the second stopper 23 is attached, and then the second stopper 23. Is attached to the guide groove 21a. Moreover, the attachment method of the 2nd stopper part 23 or the projection part 31 may be anything, such as a screw or an adhesive. Further, the protrusion 31 may be formed integrally with the magnetic adherend 3.

  The temporary holding mechanism is a mechanism that temporarily holds a state in which the magnetized body 3 is overlapped with the chip container 2 over almost the entire length. In this embodiment, the locking portion 21c provided in the guide groove 21a and the protruding portion. 31. That is, as shown in FIG. 3, a convex locking portion 21c protruding toward the magnetic adherend 3 is formed on the bottom surface of the guide groove 21a on the first stopper portion 21b side. By sandwiching the protruding portion 31 with the one stopper portion 21b, the state where the magnetized body 3 overlaps the chip container 2 over almost the entire length is temporarily held.

  Here, the shape, height, and size of the locking portion 21c are such that when the predetermined force or more is applied, the protruding portion 31 gets over (for example, the temporary holding is released), and when the predetermined force or more is not applied, the protruding portion. 31 is set so that it cannot get over (for example, temporary holding is maintained). Further, the edge 31a on the first stopper portion 21b side and the edge 31b on the anti-first stopper portion 21b side of the protruding portion 31 are subjected to R processing so that the protruding portion 31 smoothly engages the locking portion 21c. You can get over it.

  Next, the usage method, action, etc. of the chip dust scattering preventing tool 1 having such a configuration will be described.

  When forming a hole in the iron plate 100 with the electric drill 101, first, as shown in FIG. 1, the magnetic adhering body 3 is overlapped with the chip accommodating body 2, and the protrusion 31 (the magnetic adhering body 3) is placed in the first position. The drill blade 102 is inserted into the blade insertion hole 22a while being pushed and temporarily held toward the stopper portion 21b, and the tip of the drill blade 102 is positioned at the processing position of the iron plate 100. At this time, the tip of the drill blade 102 and the like are visually confirmed from the lid portion 22 and positioned. Then, the end face of the magnetized body 3 on the side of the protrusion 31 (on the side of the lid 22) is attached to the iron plate 100, and the cutting dust scattering preventing tool 1 for drilling is temporarily placed.

  Next, when the electric drill 101 is activated and the iron plate 100 is shaved with the drill blade 102, the generated chips 100a adhere to the inner peripheral surface of the chip container 2 by the magnetic force of the magnetic adherend 3, and do not scatter to the outside. . Subsequently, after the holes are formed in the iron plate 100, the drill blade 102 is extracted from the chip container 2, and the drill chip scattering preventing tool 1 is removed from the iron plate 100. Then, as shown in FIG. 4, the protrusion 31 (the magnetic body 3) is pulled toward the lid portion 22 to release the temporary holding, and the magnetic body 3 is shifted from the chip container 2. Thereby, magnetic force is cancelled | released and the chip 100a leaves | separates from the chip container 2, and is dropped and discarded.

  Thus, according to this drill chip scatter preventing tool 1, the chip 100 a adheres to the inner peripheral surface of the chip container 2 in a state where the magnetic adherend 3 is stacked on the chip container 2. Further, scattering of the chips 100a can be prevented (collecting the chips 100a), and the chips 100a can be discarded when the magnetized body 3 is shifted from the chip container 2. Thus, the chip | tip 100a can be easily collect | recovered and discarded only by superimposing or shifting the magnetic adherend 3 on the chip container 2, and handling is easy.

  Further, since the chip accommodating body 2 and the magnetic adherend 3 are not separated by the separation preventing mechanism, it is possible to prevent cutting with only the chip accommodating body 2 without attaching the magnetic adherend 3. In addition, it is possible to more reliably prevent the chips 100a from scattering. In addition, since the separation prevention mechanism is configured only by the guide groove 21a provided with the stopper portions 21b and 23 at both ends and the protrusion 31 that is slidably fitted in the guide groove 21a, it is easy to handle and maintain. And the production cost can be reduced.

  In addition, since the state where the magnetic adherend 3 is overlapped with the chip accommodating body 2 is temporarily retained by the temporary holding mechanism, the magnetic adhering body 3 is prevented from being displaced from the chip accommodating body 2 during the cutting of the iron plate 100, It becomes possible to prevent the chips 100a from scattering more reliably. In addition, when the drill chip scattering prevention tool 1 is moved after the iron plate 100 has been shaved, the magnetized body 3 is inadvertently displaced from the chip container 2, and the chip 100 a is moved to the chip container. It can prevent falling apart from 2. In addition, since the temporary holding mechanism is configured only by the locking portion 21c and the protruding portion 31 provided in the guide groove 21a, the protruding portion 31 only needs to be taken in and out of the locking portion 21c. And maintenance can be facilitated, and the production cost can be reduced.

  On the other hand, since the inside of the chip container 2 can be seen through from the lid portion 22 of the chip container 2, the cutting position and cutting state of the iron plate 100 can be visually confirmed, and the cutting operation can be performed satisfactorily. It becomes possible.

  Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above embodiment, and even if there is a design change or the like without departing from the gist of the present invention, Included in the invention. For example, in the above embodiment, the guide groove 21 a is provided on the outer peripheral surface of the chip container 2, and the protrusion 31 is provided on the inner peripheral surface of the magnetic adherend 3. A guide groove may be provided, and a protruding portion protruding from the outer peripheral surface of the chip container 2 may be provided. Further, the lid portion 22 of the chip container 2 is detachably attached to the cylindrical portion 21, and the lid portion 22 having a blade insertion hole 22 a adapted to the outer diameter of each drill blade 102 is attached to the cylindrical portion 21. Also good.

DESCRIPTION OF SYMBOLS 1 Chip scattering prevention tool for drills 2 Chip container 21 Cylindrical part 21a Guide groove (detachment prevention mechanism)
21b 1st stopper part (separation prevention mechanism)
21c Locking part (temporary holding mechanism)
22 Lid 22a Blade insertion hole 23 Second stopper (detachment prevention mechanism)
3 Magnetic attachment 31 Protrusion (detachment prevention mechanism, temporary holding mechanism)
100 Iron plate (magnetic material)
100a Chip 101 Electric drill 102 Drill blade

Claims (4)

A tool for preventing splattering of a drill that prevents scattering of swarf generated when a magnetic material is cut with a drill blade,
A chip container that has a cylindrical shape and has a lid at one end, and is formed with a blade insertion hole into which the drill blade can be inserted into the lid.
A cylindrical body made of a magnet that covers the outer peripheral surface of the chip container, and a magnetized body that is slidable in the axial direction of the chip container;
A detachment prevention mechanism for preventing the chip container and the magnetized body from detaching,
In the state where the magnetized body overlaps the chip container, the chips in the chip container adhere to the inner peripheral surface of the chip container by the magnetic force of the magnetized body, When the kimono is shifted from the chip container, the chip separates from the chip container.
This is a drill dust prevention tool. A temporary holding mechanism that temporarily holds a state where the magnetized body overlaps the chip container;
The drill dust scattering preventive tool according to claim 1, wherein: The separation prevention mechanism is
A concave guide groove that is provided on the outer peripheral surface of the chip container or the inner peripheral surface of the magnetized body and extends in the axial direction;
Stopper portions provided at both ends of the guide groove;
A protrusion that protrudes from the inner peripheral surface of the magnetized body or the outer peripheral surface of the chip container, and is slidably fitted into the guide groove;
And preventing the detachment of the chip container and the magnetized body by contacting the protrusion with the stopper.
The cutting dust scattering prevention tool for drills according to any one of claims 1 and 2. The lid portion of the chip container is capable of seeing through the inside of the chip container.
The cutting dust scattering preventive tool for a drill according to any one of claims 1 to 3, wherein:

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