JP3188869U - Heating device for boring tools - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating device for a boring cutting tool capable of heating only a holder even if the drill size of the boring cutting tool is different. SOLUTION: A heating member 10, a positioning dish 20 attached above the heating member, and two magnetic shielding plates are rotatably attached to both sides facing each other while being attached to the inside of the positioning dish. An adjusting member 30 in which a plurality of shielding openings are recessed at intervals on the outer peripheral edge of each magnetic shielding plate, and two sliding arms connected to an interlocking ring to interlock the magnetic shielding plate are attached, and a positioning pan portion. A sliding adjustment groove is formed on one side of the lid 50, and the sliding adjustment groove corresponds to the sliding locus of one end of one of the sliding arms, and the sliding adjustment of the lid. It has a lever 60 that passes through the groove and is fixed to one end of the corresponding sliding arm and can rotate the magnetic shielding plate along the sliding adjustment groove. [Selection diagram] Fig. 1

Description

  The present invention relates to a heating device capable of heating only a holder even when the drill size of a boring tool is different.

  When using the conventional heating device for boring tools, the holder is first heated and expanded, and then the drill is mounted on the holder. When the holder is cooled, the drill can be tightened by the holder. When exchanging with a drill having a different dimension, only the holder is heated and expanded, the drill is removed from the holder, and another drill is attached to the holder.

  However, the conventional heating device for boring tools has a predetermined through-hole formed at the center, but it may not be used unless it matches the size of the drill attached to the holder. Since the size cannot be accommodated, the practicality is low and it is necessary to improve the size.

The heating device for boring tool according to the present invention is:
A heating member formed with an accommodation hole penetrating vertically in the center;
An assembly recess having an opening on the upper surface is formed on the upper surface of the heating member, a lower through hole communicating with the receiving hole is formed at the center of the upper surface, and a plurality of fixed columns are formed around the lower through hole on the upper surface. A positioning pan portion that is projected at an interval,
Two magnetic shield plates are attached to the assembly recesses of the positioning plate portion and are rotatably attached to the opposite fixed columns, and a plurality of arc-shaped shield openings are spaced at the outer periphery of each magnetic shield plate. The interlocking ring is slidably mounted near the assembly recess of the positioning plate and the inner edge of the side wall, and two sliding arms for interlocking the magnetic shielding plate and the interlocking ring are attached. An adjustment member
An upper through hole corresponding to the lower through hole is formed at the center of the positioning plate portion, and a sliding adjustment groove is formed on one side of the upper through hole. A lid corresponding to the sliding locus of one end of one sliding arm;
A lever that passes through the sliding adjustment groove of the lid and is fixed to one end of the corresponding sliding arm, and that can rotate the magnetic shielding plate along the sliding adjustment groove.

In such a boring tool heating device,
The magnetic shielding plate has a center hole formed at the center, and is installed so that the fixed column is fitted into the center hole.
The plurality of shielding openings are preferably formed from a large diameter to a small diameter along the clockwise direction of the magnetic shielding plate.

In such a boring tool heating device,
It is preferable that an annular fixing ring is attached to the fixing column of the positioning plate portion so as to be positioned above the magnetic shielding plate, and a plurality of positioning slits are cut out at equal intervals on the outer peripheral edge of the fixing ring. .

In such a boring tool heating device,
The plurality of fixed columns are preferably four fixed columns protruding at equal intervals around the upper surface of the positioning plate portion and around the lower through hole.

  In the heating device for a boring tool according to the present invention, an adjustment member is attached above the heating member, and two magnetic shielding plates facing the adjustment member are rotatably attached. The outer peripheral edge of each magnetic shielding plate Since a plurality of shield openings having different sizes are provided at intervals, the shield openings can be freely selected according to the dimensions of the drill by rotating the two magnetic shield plates. Therefore, according to this method, since the magnetic shielding plate shields the magnetic flux lines from the heating member, the heating member does not heat the upper drill, but only the holder, so that different size drills can be replaced. it can.

  Furthermore, since the adjusting member in the boring tool heating device according to the present invention has a simple structure and a simple operation method, the cost can be reduced and the practicality can be improved.

It is a perspective view of the heating apparatus for boring tools according to the present invention. It is a partial section perspective view of the heating device for boring tools concerning the present invention. It is a partial exploded perspective view of the heating apparatus for boring tools according to the present invention. It is a perspective view which shows the state which adjusted the lever in the heating apparatus for boring tools which concerns on this invention. In the heating apparatus for boring tools according to the present invention, it is a partial cross-sectional plan view showing the rotation operation of the adjustment member. In the heating apparatus for boring tools according to the present invention, it is a perspective view showing a state where a large-diameter drill is mounted on a holder. In the heating apparatus for boring tools according to the present invention, it is a partially enlarged side sectional view showing a state where a large-diameter drill is mounted on a holder. In the heating apparatus for boring tools according to the present invention, it is a perspective view showing a state where a small-diameter drill is mounted on a holder. In the heating apparatus for boring tools according to the present invention, it is a partial cross-sectional plan view showing a state where a small-diameter drill is mounted on a holder.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, the following Example is only what showed the preferred embodiment of this invention, and the technical scope of this invention is not limited to the following Example itself at all.

  As shown in FIGS. 1 to 5, the heating device for a boring tool according to the present invention includes a heating member 10, a positioning plate 20, an adjustment member 30, a fixing ring 40, a lid 50, and a lever. 60.

  As shown in FIGS. 1 and 2, the heating member 10 has a cylindrical shape, and a receiving hole 11 penetrating in the vertical direction is formed at the center. The inner diameter of the receiving hole 11 increases from the upper side to the lower side. That is, the accommodation hole 11 has a tapered shape in which a small diameter is formed at the upper portion and a large diameter is formed at the lower portion. In addition, since this heating member 10 is a well-known technique, an internal structure and operation description are abbreviate | omitted.

  As shown in FIGS. 2 and 3, the positioning plate 20 has a disk shape, is attached to the upper portion of the heating member 10, and has an annular side wall extending upward at the outer peripheral edge. In addition, an assembly recess 21 having an opening is formed, a lower through hole 22 communicating with the accommodation hole 11 of the heating member 10 is formed at the center of the upper surface of the dish part, and around the lower through hole 22 on the upper surface of the dish part. Four fixed columns 23 are provided at intervals, a fixed hole 231 is formed on the upper surface of the fixed column 23, and a rotation groove 24 is formed in the vicinity of the inner edge of the side wall on the upper surface of the plate portion.

  The adjustment member 30 is attached to the assembly recess 21 of the positioning plate 20 and includes two magnetic shielding plates 31, an interlocking ring 32, and two sliding arms 33, of which the magnetic shielding plate 31 is sintered by powder metallurgy and has a magnetizable property. A central hole 311 is formed at the center, and a shielding opening 312 having a plurality of arcs is formed at intervals on the outer periphery. These shielding openings 312 are formed so as to increase from a large diameter to a small diameter in the clockwise order, insertion holes 313 are formed in the vicinity of the periphery, and these magnetic shielding plates 31 are opposed to each other, The fixed pillars 23 are fitted in the center holes 311, and each is installed so as to be able to rotate around the fixed pillars 23.

  The interlocking ring 32 is slidably attached to the rotating groove 24 of the positioning tray 20, and assembly columns 321 are provided on both sides of the upper surface facing each other. The sliding arm 33 has an arc shape, and assembly holes 331 are formed at both ends of the sliding arm. The assembly hole 331 at one end thereof corresponds to the insertion hole 313 of the magnetic shielding plate 31, and the assembly at the other end. The assembly column 321 of the interlocking ring 32 passes through the hole 331.

  The fixing ring 40 has an annular shape and is mounted on the assembly recess 21 of the positioning tray 20, and through holes 41 are formed at locations corresponding to the fixing columns 23. The through holes 41 are fitted into the fixing columns 23. Then, the four bolts 42 are screwed into the fixing holes 231 of the corresponding fixing pillars 23, respectively, so that the fixing ring 40 is installed in contact with the upper surfaces of the two magnetic shielding plates 31. Further, a plurality of positioning slits 43 are cut out at equal intervals on the outer peripheral edge of the fixing ring 40, and through holes 41 are formed between the adjacent positioning slits 43.

  The lid part 50 is attached to the heating member 10 so as to be positioned above the positioning dish part 20 and includes two bolts 51, and an upper through hole 52 corresponding to the lower through hole 22 is formed at the center. Each of the bolts 51 passes through the positioning plate 20 and is screwed onto the upper portion of the heating member 10. Further, an upper through hole 52 corresponding to the lower through hole 22 is formed at the center of the lid portion 50. A U-shaped sliding adjustment groove 53 is formed on one side of the hole 52, and the sliding adjustment groove 53 corresponds to a sliding locus of one end of one sliding arm 33. Further, a sliding groove 54 is formed at a position corresponding to the sliding locus of the two assembly columns 321 at the edge of the bottom surface of the lid 50, and each of the two assembly columns 321 corresponds to the corresponding sliding groove 54. Located in.

  The lever 60 has a rod shape and is provided with a coupling end 61 at the bottom end. The coupling end 61 passes through the sliding adjustment groove 53 of the lid 50 and the assembly hole 331 of the sliding arm 33 and the magnetic shielding plate 31. Is inserted into the insertion hole 313. In this embodiment, a screw hole is formed on the bottom surface of the coupling end 61 of the lever 60, and a bolt is fitted into the assembly hole 331 of the sliding arm 33 and the insertion hole 313 of the magnetic shielding plate 31. The upper end of the bolt is screwed into the screw hole of the coupling end 61.

  As shown in FIGS. 1, 4, and 5, the method of adjusting the boring cutting tool heating device according to the present invention is such that the lever 60 is slid along the slide adjusting groove 53 and one magnetic shielding plate is used. By rotating the magnetic shield plate 31, the other magnetic shield plate 31 is interlocked by the interlocking ring 32 by the rotation of the magnetic shield plate 31, thereby adjusting both the magnetic shield plates 31 so that the shield openings 312 matching the inner diameter are opposed to each other. do it. Further, if the lever 60 is rotated along the slide adjusting groove 53, an appropriate shielding opening 312 can be freely selected according to the dimensions of the drill (as shown in FIGS. 4 and 5).

  As shown in FIGS. 6 and 7, when using the boring cutting tool heating device according to the present invention, first, a holder 80 fitted with a large-diameter drill 70 is inserted into the accommodation hole 11 of the heating member 10. By attaching the heating device to the heating device and adjusting the shielding opening 312 of the magnetic shielding plate 31 by sliding the lever 60, the shielding opening 312 matching the dimensions of the drill 70 is selected, and this magnetic shielding plate Since 31 shields the magnetic flux lines from the heating member 10, only the holder 80 is heated by the heating member 10. Therefore, when the holder 80 is expanded, the drill 70 can be removed from the holder 80.

  As shown in FIGS. 8 and 9, the boring tool heating device according to the present invention may be used for a holder 80 equipped with a small-diameter drill 70 </ b> A having a different size. The shielding opening 312 of the magnetic shielding plate 31 that slides and matches the size of the drill 70A may be selected.

  The heating device for a boring tool according to the present invention can freely select the shielding opening 312 suitable for the drill having different dimensions by adjusting the magnetic shielding plate 31 by sliding the lever 60. The operation method is simple, the structure and assembly of the adjusting member 30 are simple, the production cost can be reduced, and the practicality is high.

DESCRIPTION OF SYMBOLS 10 Heating member 11 Accommodating hole 20 Positioning plate part 21 Assembly recessed part 22 Lower through-hole 23 Fixed pillar 231 Fixed hole 24 Rotating groove 30 Adjustment member 31 Magnetic shielding plate 311 Center hole 312 Shielding opening 313 Insertion hole 32 Interlocking ring 321 Assembly pillar 33 Slide arm 331 Assembly hole 40 Fixing ring 41 Through hole 42 Bolt 43 Positioning slit 50 Lid 51 Bolt 52 Upper through hole 53 Sliding adjustment groove 54 Sliding groove 60 Lever 61 Joint end 70 Drill 70A Drill 80 Holder

Claims (4)

A heating member formed with an accommodation hole penetrating vertically in the center;
An assembly recess having an opening on the upper surface is formed on the upper surface of the heating member, a lower through hole communicating with the receiving hole is formed at the center of the upper surface, and a plurality of fixed columns are formed around the lower through hole on the upper surface. A positioning pan portion that is projected at an interval,
Two magnetic shield plates are attached to the assembly recesses of the positioning plate portion and are rotatably attached to the opposite fixed columns, and a plurality of arc-shaped shield openings are spaced at the outer periphery of each magnetic shield plate. The interlocking ring is slidably mounted near the assembly recess of the positioning plate and the inner edge of the side wall, and two sliding arms for interlocking the magnetic shielding plate and the interlocking ring are attached. An adjustment member
An upper through hole corresponding to the lower through hole is formed at the center of the positioning plate portion, and a sliding adjustment groove is formed on one side of the upper through hole. A lid corresponding to the sliding locus of one end of one sliding arm;
A lever that passes through the sliding adjustment groove of the lid portion and is fixed to one end of the corresponding sliding arm, and is capable of rotating the magnetic shielding plate along the sliding adjustment groove. Heating device for boring cutting tools. The magnetic shielding plate has a center hole formed at the center, and is installed so that the fixed column is fitted into the center hole.
The heating device for a boring tool according to claim 1, wherein the plurality of shielding openings are formed from a large diameter to a small diameter along a clockwise direction of the magnetic shielding plate.   An annular fixing ring is attached to the fixing column of the positioning plate so as to be positioned above the magnetic shielding plate, and a plurality of positioning slits are cut out at equal intervals on the outer peripheral edge of the fixing ring. The heating device for a boring tool according to claim 2.   4. The heating device for a boring tool according to claim 3, wherein the plurality of fixed columns are four fixed columns protruding at equal intervals around the upper surface of the positioning plate portion and around the lower through hole. .

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