JP4629326B2 - Cutting tool storage case - Google Patents

Description

  The present invention relates to a cutting tool housing case for housing a cutting tool such as a luma type drill or an end mill in which a diameter of a tip provided with a cutting blade is smaller than a diameter of a shank, and in particular, a cutting tool as described above. It is characterized in that the tool can be safely housed without rattling and the cutting tool housed in the cutting tool housing case can be easily and safely set on the machine tool. .

  In recent years, small-diameter drills having a diameter of 2.0 mm or less have been widely used to perform precise drilling processing on printed circuit boards and the like in electronic devices. As such small-diameter drills, A luma type drill with the tip diameter smaller than the shank diameter is widely used, and fine cutting of parts and molds as various products become finer. Therefore, a small-diameter end mill in which the diameter of the tip portion provided with the cutting edge is smaller than the diameter of the shank portion has been used.

  And, for cutting tools such as luma type drills and end mills with a small diameter at the tip provided with such cutting blades, conventionally, the cutting tools such as general drills and end mills were made of the same plastic. The cutting tool is housed in the cutting tool storage case for transportation and storage. When using these cutting tools, the cutting tool is taken out from the above cutting tool storage case, and the cutting tool is grasped with a finger and the spindle is used. It was supposed to be attached to machine tools such as.

  However, in a cutting tool such as a luma type drill or end mill having a small diameter at the tip provided with the cutting edge as described above, the tip provided with the cutting edge is easily broken, and the cutting tool is accommodated as described above. The cutting tool may rattle in the cutting tool housing case while being transported while being housed in the working case, and the tip provided with the cutting blade may hit the cutting tool housing case and break. .

  For this reason, when the cutting tool as described above is housed in the cutting tool housing case, a method has been employed in which the tip of the cutting tool having a reduced diameter is covered with a soft cushion material and protected. However, in this case, there is a problem that the cutting tool is housed in the cutting tool housing case, and the work of taking out the cutting tool from the cutting tool housing case becomes troublesome.

  Furthermore, when taking out the cutting tool as described above from the cutting tool storage case and attaching the cutting tool to a machine tool such as a spindle, carefully set the tip provided with the cutting edge with your fingers. The work must be very troublesome, and the tip, whose diameter was reduced at the time of the work, could break when hitting a machine or the like, and the finger could touch the cutting blade, resulting in injury. .

  The present invention is applicable to a case where a cutting tool such as a luma type drill or an end mill whose diameter at the tip provided with the cutting edge is smaller than the diameter of the shank is accommodated in a cutting tool accommodating case and transported. An object of the present invention is to solve the above-described problems when a die drill is attached to a machine tool such as a spindle.

  In other words, the present invention provides a cutting tool storage case that can safely store the above-described cutting tool without rattling and can easily and safely set the cutting tool on a machine tool. It is an object to do.

In this invention, in order to solve the above problems, the diameter of the tip portion 1a provided with the cutting blade is smaller than the diameter of the shank portion 1b, and between the tip portion 1a and the shank portion 1b. In the cutting tool housing case for housing the cutting tool 1 provided with the taper portion 1c, the front side of the cutting tool 1 having the tip portion 1a provided with the cutting edge is inserted in the axial direction for housing. The first case 10 provided with the accommodating part 11 and the second case 20 provided with the second accommodating part 21 for accommodating the rear side of the cutting tool 1 having the shank part 1b are detachably engaged. The holding portion 12 having the holding convex shape 12a for holding the shank portion 1b of the cutting tool 1 is provided in the first receiving portion 11 in the first case 10 and is received in the first receiving portion 11. Cutting tool 1 The tapered portion 1c between the front-end 1a of the cutting tool 1 to regulate the length of the tip portion 1a and the shank 1b of the abutting stopping part 13 in the cutting tool 1 to suppress hitting the wall surface of the first housing part 11 A corresponding taper shape was formed .

  When the cutting tool 1 is housed in the cutting tool housing case according to the present invention, first, the front side of the cutting tool 1 having the tip 1a provided with the cutting blade is placed on the first side of the first case 10 described above. The cutting tool 1 is inserted into the first housing part 11 until it is guided into the housing part 11 and the cutting tool 1 is restrained by the above-described stopper part 13, and the shank part 1 b of the cutting tool 1 is moved to the first part. It is made to hold | maintain in said holding | maintenance part 12 provided in the accommodating part 11. FIG.

  Next, with the front side of the cutting tool 1 housed in the first housing part 11 of the first case 10 in this way, the rear side of the cutting tool 1 protruding from the first case 10 is placed in the second case. The first case 10 and the second case 20 are engaged with each other so that the first case 10 and the second case 20 are engaged with each other.

  Further, when the cutting tool 1 housed in the cutting tool housing case is attached to a machine tool such as a spindle, the second case 20 housing the rear side of the cutting tool 1 is removed from the first case 10. The shank portion 1b on the rear side of the cutting tool 1 is protruded from the first case 10, and in this state, the protruding shank portion 1b with the first case 10 is attached to the machine tool. The first case 10 is removed from the cutting tool 1 attached to the head.

Further, in the cutting tool housing case according to the present invention, when the stopper 13 for restricting the length of the cutting tool 1 accommodated in the first accommodating portion 11 is provided, the stopper 13 is used as described above. Further, the cutting tool 1 was formed in a tapered shape corresponding to the tapered portion 1c between the tip portion 1a and the shank portion 1b.

As described above in detail, in the cutting tool housing case according to the present invention, the front side of the cutting tool having a small-diameter tip portion provided with a cutting edge is axially disposed in the first housing portion of the first case. While being inserted and accommodated, the rear side of the cutting tool having the shank portion is accommodated in the second accommodating portion in the second case, and the first case and the second case are detachably engaged to accommodate the cutting tool. In doing so, since the cutting tool is prevented from being inserted by the stopper provided in the first housing portion of the first case, the tip portion having a small diameter provided with the cutting blade hits the wall surface of the first housing portion. Is prevented, and the tip of the cutting tool having a small diameter is prevented from being broken.

Further, since the shank portion of the cutting tool is held by the holding convex shape in the holding portion provided in the first receiving portion, it is possible to prevent the cutting tool from rattling in the cutting tool receiving case, and at the time of transportation. In such a case, the breakage of the tip portion having a small diameter in the cutting tool is also suppressed.

Further, when the cutting tool accommodated in the cutting tool accommodating case is attached to the machine tool, the second case accommodating the rear side of the cutting tool as described above is removed from the first case, and cutting is performed. The shank part on the rear side of the tool is protruded from the first case, and the shank part protruding with the first case is attached to the machine tool, and then the front side of the cutting tool is placed in the first housing part of the first case. It is possible to remove the first case from the cutting tool by removing it from the cutting tool, so that the tip portion having a small diameter does not break against the machine directly as in the prior art, and the shank portion is carefully removed. The cutting tool can be easily set on the machine tool without having to perform the difficult task of grasping and setting it on the machine tool. Also it eliminated the fact that the injury touched.

Further, when providing a stopper part for regulating the length of the cutting tool accommodated in the first accommodating part, like the case for accommodating cutting tool in the present invention, the stopper part is connected to the tip part and the shank in the cutting tool. When the taper portion corresponding to the taper portion is formed between the taper portion and the taper portion of the cutting tool, the taper portion of the cutting tool comes into intimate contact with the tapering stopper portion, and the cutting tool rattles in the cutting tool housing case. Is further suppressed.

  Hereinafter, a cutting tool housing case according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. Note that the cutting tool housing case according to the present invention is not limited to the case shown in the following embodiment, and can be implemented with appropriate modifications within a range not changing the gist of the invention.

  In this embodiment, the cutting tool 1 has a tapered portion 1c between a tip portion 1a provided with a cutting blade as shown in FIG. 1 and a shank portion 1b, and the diameter of the tip portion 1a is the shank portion 1b. A cutting tool housing case that accommodates the luma-type drill 1 having a diameter smaller than that of the cutting tool will be described. In this embodiment, the luma-type drill 1 provided with the tapered portion 1c that is linear between the tip portion 1a and the shank portion 1b is used. However, the tapered portion 1c has a curved shape. It may be.

  The cutting tool housing case in this embodiment is made of plastic, and as shown in FIG. 2, a first housing portion 11 for housing the front side of the luma-type drill 1 having the tip portion 1a is provided. 1 case 10 and a second case 20 provided with a second accommodating portion 21 for accommodating the rear side of the luma-type drill 1 with the shank portion 1b. The first case 10 and the second case 20 are detachably attached by fitting the mouth portion 14 of the first case 10 on the inner peripheral side.

  Here, in fitting the mouth part 14 of the first case 10 to the inner surface side of the mouth part 22 in the second case 20 as described above, the first case 10 and the second case 20 are easily attached. In order not to come off, an engagement protrusion (not shown) and an engagement recess engaged with the engagement protrusion (not shown) are formed on the outer surface of the mouth portion 14 of the first case 10 and the inner surface of the mouth portion 22 of the second case 20. (Not shown) are preferably provided and engaged with each other.

  Moreover, in the 1st accommodating part 11 in said 1st case 10, the luma type drill 1 goes to the axial direction inside of the 1st case 10 from said opening part 14 which inserts the front part side of the luma type drill 1. A holding part 12 for holding the shank part 1b, a stopper part 13 for regulating the length of the luma type drill 1 accommodated in the first accommodating part 11, and a tip part 1a of the luma type drill 1 are accommodated. A tip accommodating portion 15 is provided.

  In the holding portion 12, a plurality of holding ridges 12a projecting inward and extending in the axial direction on the wall surface are provided so as to face each other, and a luma type is formed by these holding ridges 12a. The shank portion 1b of the drill 1 is held. The means for holding the shank portion 1b of the luma-type drill 1 is not particularly limited to this, and for example, it protrudes in an arc shape inward so as to face the wall surface of the holding portion 12, and is axially extended. It is also possible to provide a pair of extended holding members (not shown).

  Further, in providing the above-described stopper part 13, the stopper part 13 is formed in a tapered shape corresponding to the tapered part 1c of the luma-type drill 1, and the stopper part 13 having the tapered shape is formed. In addition, the tapered portion 1c of the luma type drill 1 is in close contact.

  Further, the inner diameter of the tip accommodating portion 15 is made somewhat larger than the diameter of the tip portion 1 a in the luma-type drill 1 so that the tip portion 1 a does not hit the wall surface of the tip accommodating portion 15. At the same time, when the length of the tip accommodating portion 15 is made somewhat longer than the tip portion 1a and the tapered portion 1c of the luma-type drill 1 is brought into close contact with the stopper portion 13 as described above, the tip portion 1a is prevented. So that the tip of the tip does not hit the wall of the tip of the tip receiving portion 15

  Further, in the cutting tool housing case in this embodiment, in order to facilitate the operation of attaching the second case 20 to the first case 10 or removing the second case 20 from the first case 10, Antiskids 16 and 23 are provided on the outer surfaces of the first case 10 and the second case 20, respectively.

  Here, in accommodating the luma-type drill 1 in the cutting tool housing case in this embodiment, as shown in FIG. 3, the front side of the luma-type drill 1 with the tip 1 a is placed on the first case 10. It is made to insert in the 1st accommodating part 11 from the opening part 14. FIG.

  The luma-type drill 1 is inserted into the first accommodating portion 11 until the tapered portion 1c of the luma-type drill 1 is tightly restrained by the above-described stopper portion 13, and the distal end portion 1a of the luma-type drill 1 is inserted. As shown in FIG. 4, the shank portion 1 b of the luma-type drill 1 is held by the holding protrusion 12 a provided on the holding portion 12 so as not to hit the inner wall of the tip accommodating portion 15. Like that.

  Next, the rear side of the luma type drill 1 protruding from the first case 10 in the state in which the front side of the luma type drill 1 is accommodated in the first accommodating part 11 of the first case 10 in this way The second case 20 is housed in the second housing portion 21 of the two cases 20, the mouth portion 22 of the second case 20 is fitted on the outer peripheral side of the mouth portion 14 of the first case 10, and the second case 20 is attached to the first case 10. Like that.

  Further, when attaching the luma type drill 1 housed in the cutting tool housing case to the machine tool 2 such as a spindle in this way, the anti-slip 16 provided on the outer surface of the first case 10 and the second case 20, As shown in FIG. 5A, the second case 20 accommodating the rear side of the luma-type drill 1 is removed from the first case 10 and the shank portion on the rear side of the luma-type drill 1 is held. 1b protrudes from the first case 10.

  Next, in this state, as shown in FIG. 5B, the shank portion 1b protruding with the first case 10 is inserted into the mounting portion 2a of the machine tool 2, and the shank portion 1b is inserted into the machine tool 2 as shown in FIG. It is made to fix to the attachment part 2a.

  Thereafter, as shown in FIG. 5C, the first case 10 is removed from the luma type drill 1.

  In this way, when the luma-type drill 1 is attached to a machine tool, the tip portion 1a having a reduced diameter is not directly broken by hitting the machine or the like as in the prior art, and the shank portion 1b is carefully grasped. This eliminates the need to perform the difficult task of setting the machine tool 2 on the machine tool 2 so that the luma-type drill 1 can be easily set on the machine tool and the hand touches the cutting edge provided on the tip 1a to cause injury. There is no need to do it.

  In addition, in this embodiment, although the case where the above luma type drills 1 were accommodated was demonstrated, the cutting tool 1 accommodated in the cutting tool accommodation case of this invention is made into the above luma type drills 1. The end mill is not limited and may be an end mill in which the diameter of the tip provided with the cutting edge is smaller than the diameter of the shank.

It is a top view of the cutting tool accommodated in the case for cutting tool accommodation which concerns on one Embodiment of this invention. In the cutting tool accommodation case which concerns on one Embodiment of this invention, it is sectional explanatory drawing which showed the state which isolate | separated the 1st case and the 2nd case. It is sectional explanatory drawing which showed the state which accommodated the cutting tool in the case for cutting tool accommodation which concerns on the embodiment. In the cutting tool accommodation case which concerns on the embodiment, it is the cross-sectional explanatory drawing which showed the state which made the holding | maintenance part provided in the 1st accommodating part of the 1st case hold | maintain the shank part of the cutting tool. It is explanatory drawing which showed the process of setting the cutting tool accommodated in the case for cutting tool accommodation which concerns on the embodiment to a machine tool.

Explanation of symbols

1 Cutting tool (Luma drill)
DESCRIPTION OF SYMBOLS 1a Tip part 1b Shank part 1c Tapered part 10 1st case 11 1st accommodating part 12 Holding | maintenance part 13 Stopping part 20 2nd case 21 2nd accommodating part

Claims (3)

A cutting tool that accommodates a cutting tool 1 in which the diameter of the tip portion 1a provided with the cutting edge is smaller than the diameter of the shank portion 1b and the tapered portion 1c is provided between the tip portion 1a and the shank portion 1b. 1st case 10 provided with the 1st accommodating part 11 which is a case for accommodating, Comprising: The front part side of the cutting tool 1 with the front-end | tip part 1a provided with the cutting blade is inserted in an axial direction, and a shank A second case 20 provided with a second housing portion 21 for housing the rear side of the cutting tool 1 having the portion 1b is detachably engaged with the first housing portion 11 in the first case 10 described above. A holding portion 12 having a holding convex shape 12a for holding the shank portion 1b of the cutting tool 1 is provided, and the length of the cutting tool 1 accommodated in the first accommodating portion 11 is regulated to control the cutting tool 1. The front end portion 1a of the first housing portion 11 Cutting tool accommodating case, characterized in that the abutting stopping part 13 to prevent from striking the wall surface is formed in a tapered shape corresponding to the tapered portion 1c between the front end portion 1a and the shank 1b of the cutting tool 1. The cutting tool housing case according to claim 1, wherein the cutting tool 1 to be housed is a luma-type drill in which the diameter of the tip portion 1a provided with the cutting edge is smaller than the diameter of the shank portion 1b. A cutting tool storage case. The cutting tool housing case according to claim 1 or 2, wherein the cutting tool 1 to be housed is an end mill in which the diameter of the tip portion 1a provided with the cutting edge is smaller than the diameter of the shank portion 1b. A case for storing cutting tools.

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