JP2005279867A - Cutter fixing structure of cutter polishing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve working efficiency by accurately or efficiently polishing a cutter. <P>SOLUTION: This device polishes the cutter by relatively moving a fixed table for fixing the cutter by a fixture by holding the cutter between the fixed table and a fixing plate and a grinding tool slid and contacted by the cutter. The device is provided with a tool for fixing constituted of a fixed table side tool fixed by the fixture by being held between the fixed table and the fixing plate and a cutter side tool mounted on the fixed table side tool to fix the cutter by holding the cutter between the cutter side tool and the fixed table side tool. A positioning mechanism is provided to decide a fixing position of the cutter in relation to the tool for fixing between at least one of the fixed table side tool and the cutter side tool and the cutter. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a blade fixing structure of a blade polishing apparatus, and more particularly to a blade fixing structure of a blade polishing apparatus that can polish the blade with high accuracy and efficiency, and can improve work efficiency.

  Some cutting devices that finish the surface of a workpiece such as wood smoothly have a rotating blade. The cutting device attaches a cutter to the outer periphery of the rotating body, moves the workpiece to the rotating cutter, and cuts the surface of the workpiece with the cutter to make it smooth. Since the blade is worn by use, it is polished by a blade polishing apparatus.

  The blade polishing apparatus is provided with a fixing base that is sandwiched between a blade and a fixing plate and fixed by a fixing tool, and a grindstone that is slidably contacted with the blade. The blade polishing apparatus relatively moves the fixed base on which the blade is fixed and the grindstone, and polishes the blade with the grindstone.

In the conventional blade-fixing structure of a blade polishing apparatus, a blade is inserted between a fixing plate and a holding plate that are overlapped with a fixing table, and a holding bolt inserted through the fixing plate and the holding plate is screwed to the fixing table and tightened. In some cases, there is a tool for fixing the blade.
JP-A-7-285054

  By the way, in the blade fixing structure of the conventional blade polishing apparatus, the blade is fixed by placing the blade on a fixed base and sandwiching it with a fixing plate, and screwing and tightening a fixing bolt to the fixed base.

  However, in the conventional blade sharpening structure of a blade polishing apparatus, a plate-shaped blade is sandwiched and fixed between the fixed base and the fixed plate, so the position is accurately adjusted and fixed with respect to the fixed base. However, there is a problem that the working efficiency is lowered because it takes time to adjust the position of the blade.

  For this reason, the conventional blade fixing structure of the blade polishing apparatus has a disadvantage that the blade cannot be polished accurately and efficiently.

  The present invention relates to the blade polishing apparatus for polishing the blade by relatively moving a fixing base that is sandwiched between the blade and a fixing plate and fixed by a fixing tool and a grindstone that is in sliding contact with the blade. A fixing base side jig that is sandwiched between a base and a fixing plate and is fixed by the fixing tool, and is attached to the fixing base side jig, and the cutter is sandwiched and fixed between the fixing base side jig. Positioning for determining a fixing position of the cutting tool with respect to the fixing jig between at least one of the fixing base side jig and the cutting tool side jig and the cutting tool. A mechanism is provided.

  The blade fixing structure of the blade polishing apparatus according to the present invention includes a fixing jig including a fixing base side jig and a cutter side jig, and at least of the fixing base side jig and the cutter side jig of the fixing jig. By providing a positioning mechanism that determines the fixing position of the blade with respect to the fixing jig between the tool and the tool, the positioning mechanism can accurately position and fix the blade with respect to the fixed base by a simple operation. Therefore, the blade can be polished accurately and efficiently, and the working efficiency can be improved.

The blade fixing structure of the blade polishing apparatus according to the present invention can fix the blade to the fixing base with high accuracy and in a short time by providing a positioning mechanism on the fixing jig for fixing the blade to the fixing base. It can be polished with high accuracy and efficiency.
Embodiments of the present invention will be described below with reference to the drawings.

  1 to 9 show an embodiment of the present invention. 4 and 5, reference numeral 2 denotes a blade. The blade 2 is provided with a blade body 4 formed in the shape of a long square plate having a substantially trapezoidal cross section, and cutting edges 6 are provided on both sides in the width direction of the blade body 4. The cutter 2 is attached to a cutting device (not shown) and rotated, and is used for processing to cut the surface of a workpiece such as wood and finish it smoothly.

  The blade polishing apparatus 8 for polishing the blade 2 is provided with a table 12 and a frame 14 on a bed 10 as shown in FIGS.

  The table 12 is provided with a fixed base 20 pivotally supported by a rotary shaft 18 on support columns 16 standing at both ends, and an angle adjusting mechanism 22 for adjusting the angle of the fixed base 20 is provided. A fixing mechanism 24 for fixing 20 to the table 12 is provided. The angle adjustment mechanism 22 includes an adjustment handle 26. The fixing mechanism 24 includes a fixed handle 28.

  As shown in FIG. 1, a support portion 30 is erected on one side in the width direction on the fixing base 20, and a fixing bolt 32 constituting a fixing tool is planted adjacent to the supporting portion 30. A fixing nut 34 constituting the fixture is provided by screwing. An insertion hole 38 through which the fixing bolt 32 is inserted is formed in the fixing plate 36 fixed to the fixing base 20 by the fixing bolt 32 and the fixing nut 34.

  Further, the fixing base 20 is screwed with an adjusting bolt 42 in a screw hole 40 formed in the support portion 30. The adjustment bolt 42 adjusts the fixed position of the blade 2 via the push member 44.

  The frame 14 is provided with a rough grindstone 46 and a finish grindstone 48 as grindstones that are slidably contacted with the blade 2 and polished. The rough whetstone 46 and the finishing whetstone 48 are rotated by a rough whetstone motor 50 and a finishing whetstone motor 52, respectively, and are brought into contact with and separated from the cutter 2 by a rough whetstone lifting mechanism and a finishing whetstone lifting mechanism (not shown), respectively. Go up and down.

  The blade polishing apparatus 8 sandwiches the blade 2 between the fixed base 20 and the fixing plate 36 and fixes it with the fixing bolt 32 and the fixing nut 34, and pushes the blade 2 through the pressing member 44 with the adjusting bolt 42. The fixing position is adjusted, and the table 12 and the frame 14 are moved relative to each other on the bed 10. For example, the frame 14 including the rough grindstone 46 and the finishing grindstone 48 is moved with respect to the table 12 on which the blade 2 is fixed. Then, the cutting edge 6 of the blade 2 is polished by the rough grindstone 46 and the finishing grindstone 48.

  The blade fixing structure of the blade polishing apparatus 8 includes a fixing jig 54 that fixes the blade 2 to the fixing base 20. The fixing jig 54 is attached to the fixing base side jig 56 and the fixing base side jig 56 sandwiched between the fixing base 20 and the fixing plate 36 and fixed by the fixing bolt 32 and the fixing nut 34. The tool 2 includes a tool-side jig 58 that fixes the tool 2 while being sandwiched between the tool-side jig 56 and the tool-side jig 56.

  As shown in FIGS. 6 and 7, the fixing base side jig 56 is formed in a long rectangular plate shape that is long in the longitudinal direction of the blade 2, and is provided with a clamping portion 60 that is clamped between the fixing base 20 and the fixing plate 36. The holding portion 60 is provided with a support portion 64 that continuously supports the blade 2 and the blade-side jig 58 via the stepped portion 62, and a screw hole 66 is formed in the support portion 64.

  As shown in FIGS. 8 and 9, the cutter-side jig 58 is formed in a square plate shape along the longitudinal direction of the fixed base-side jig 56, and abuts against the support portion 64 of the fixed base-side jig 56. The abutting portion 68 is provided, and the abutting portion 68 is provided with a pressing portion 72 that continuously presses the blade 2 through the stepped portion 70, and the abutting portion 68 is inserted into the insertion hole 74 that matches the screw hole 66. Is provided. The cutter-side jig 56 is brought into contact with the support portion 64 of the fixed base-side jig 56 and screwed into the screw holes 66 of the fixed base-side jig 56 by screwing the mounting bolts 76 inserted through the insertion holes 74. It is attached to the fixed base side jig 56.

  A positioning mechanism 78 is provided between at least one of the fixing base side jig 56 and the cutter side jig 58 and the cutter 2 to determine the fixing position of the cutter 2 with respect to the fixing jig 54.

  As shown in FIGS. 8 and 9, the positioning mechanism 78 of the first embodiment is provided with an engaging protrusion 80 extending in the longitudinal direction on the lower surface 72a of the pressing portion 72 of the cutter side jig 58, and FIGS. As shown in FIG. 3, an engagement groove 82 that engages with the engagement protrusion 80 is provided on the upper surface 4 b of the blade body 4 of the blade 2.

  Next, the operation will be described.

  When the blade polishing apparatus 8 fixes the blade 2 to the fixing base 20, as shown in FIG. 1, the abutting portion 68 of the blade side jig 58 is brought into contact with the support portion 64 of the fixing base side jig 56. The mounting bolt 76 inserted into the insertion hole 74 of the cutter-side jig 58 is screwed into the screw hole 66 of the fixing base-side jig 56 so that the cutter-side jig 58 is attached to the fixing base-side jig 56 for fixing. The jig 54 is temporarily assembled.

  The temporarily assembled fixing jig 54 loosens the fixing nut 34 screwed to the fixing bolt 32, makes the fixing base side jig 56 abut on the fixing base 20, and makes one end abut on the support portion 30. The clamping part 60 of the fixing base side jig 56 is sandwiched between the other end side of the fixing plate 36 and the fixing base side jig 56 is pushed through the pressing member 44 by the adjusting bolt 42, so that the cutting edge 6 of the cutter 2 is cut. The fixing base 34 is fixed to the fixing base 20 with the fixing bolts 32 and the fixing nut 34 by adjusting the protruding amount of the screw and tightening the fixing nut 34.

  The fixing jig 54 whose position is adjusted by the adjusting bolt 42 and the fixing base side jig 56 is fixed to the fixing base 20 is loosened by loosening the mounting bolt 76 and between the fixing base side jig 56 and the cutter side jig 58. The engagement groove 82 of the positioning mechanism 78 provided on the upper surface 48b of the blade body 4 of the blade 2 is formed on the engagement protrusion 80 of the positioning mechanism 78 provided on the lower surface 72a of the pressing portion 72 of the cutter side jig 58. While being engaged, the blade 2 is inserted between the support portion 64 of the fixed base side jig 56 and the pressing portion 72 of the blade side jig 58, and the mounting bolt 76 is tightened.

  Thereby, the blade 2 is fixed to the fixing jig 54 by the positioning mechanism 78 provided between the blade side jig 58 of the fixing jig 54 fixed to the fixing base 20 and the blade 2. And is attached to the fixing jig 54.

  As shown in FIGS. 2 and 3, the blade polishing apparatus 8 adjusts the angle of the fixing base 20 that fixes the blade 2 via the fixing jig 54, that is, the angle of the blade edge 4 of the blade 2 and the adjustment handle of the angle adjusting mechanism 22. 26, and after fixing the fixed base 20 to the table 12 by operating the fixed handle 28 of the fixing mechanism 24, the rotating rough grindstone 46 and the finishing grindstone 48 are sequentially brought into sliding contact and polished. . The polished blade 2 can be used for cutting a workpiece such as wood by loosening the mounting bolt 76 and removing it from the fixing jig 54 and attaching it to a cutting device (not shown).

  As described above, the blade fixing structure of the blade polishing apparatus 8 includes the fixing jig 54 including the fixing base side jig 56 and the blade side jig 58, and the cutter side jig 58 of the fixing jig 54 is provided. A positioning mechanism 78 for determining the fixing position of the blade 2 with respect to the fixing jig 54 is provided between the blade 2 and the blade 2.

  For this reason, the blade fixing structure of the blade polishing device 8 can accurately position and fix the blade 2 with respect to the fixing base 20 by the positioning mechanism 78 by a simple operation, and the blade 2 can be accurately fixed. Polishing can be performed efficiently and work efficiency can be improved.

  The present invention is not limited to the above-described embodiments, and various application modifications can be made.

  For example, in the above-described embodiment, the positioning mechanism 78 is provided between the cutter-side jig 58 of the fixing jig 54 and the cutter 2, but the fixing base-side jig 56 of the fixing jig 54 and the cutter 2 A positioning mechanism 78 may be provided between the two.

  That is, the blade fixing structure of the blade polishing apparatus 8 is provided with an engaging protrusion 80 extending in the longitudinal direction on the upper surface 64b of the support portion 64 of the fixing base side jig 56 as a positioning mechanism 78 as shown in FIG. By providing an engagement groove 82 that engages with the engagement protrusion 80 on the lower surface 4a of the blade body 4 of the blade 2, the blade 2 can be accurately positioned and fixed to the fixed base 20 by a simple operation. The blade 2 can be polished with high accuracy and efficiency.

  The blade fixing structure of the blade polishing apparatus according to the present invention is a positioning for determining a fixing position of the blade with respect to the fixing jig between at least one of the fixing base side jig and the blade side jig of the fixing jig and the blade. By providing a mechanism, it is possible to accurately position and fix the blade with a simple work with respect to the fixed base, and to polish the blade with high accuracy and efficiency. Machine parts can be applied for fixing.

It is a principal part expanded sectional view of the cutter fixing structure of the cutter polishing apparatus which shows an Example. It is a schematic front view of a knife polishing apparatus. It is a schematic sectional drawing of the blade polishing apparatus by the III-III line of FIG. It is a partially abbreviated top view of a cutter. It is a side view of the cutter by the arrow V of FIG. It is a partially omitted plan view of the fixing base side jig. It is a side view of the fixing stand side jig | tool by the arrow VII of FIG. It is a partially abbreviated plan view of the cutter side jig. It is a side view of the cutter side jig | tool by the arrow IX of FIG. It is a principal part expanded sectional view of the cutter fixing structure of the cutter polishing apparatus which shows an application example.

Explanation of symbols

2 Blade 4 Blade body 6 Cutting edge 8 Blade grinding device 10 Bed 12 Table 14 Frame 18 Rotating shaft 20 Fixing base 22 Angle adjusting mechanism 24 Fixing mechanism 30 Supporting part 32 Fixing bolt 34 Fixing nut 36 Fixing plate 42 Adjusting bolt 44 Pushing member 46 Coarse whetstone 48 Finishing whetstone 54 Fixing jig 56 Fixing base side jig 58 Cutter side jig 76 Mounting bolt 78 Positioning mechanism 80 Engagement ridge 82 Engagement groove

Claims (3)

  In the blade polishing apparatus for polishing the blade by relatively moving a fixed base which is sandwiched between the blade and a fixing plate and fixed by a fixing tool and a grindstone which is in sliding contact with the blade, the fixed base and the fixed plate A fixture-side jig that is sandwiched between and fixed by the fixture, and a cutter-side jig that is attached to the fixture base-side jig and clamps the cutter between the fixture base-side jig. And a positioning mechanism for determining a fixing position of the cutter relative to the fixing jig between at least one of the fixing base side jig and the cutter side jig and the cutter. The blade fixing structure of the blade polishing apparatus characterized by the above.   2. The positioning mechanism according to claim 1, wherein an engagement protrusion that extends in a longitudinal direction is provided on the cutter-side jig, and an engagement groove that engages with the engagement protrusion is provided on the cutter. The blade fixing structure of the blade polishing apparatus according to 1.   2. The positioning mechanism according to claim 1, wherein an engagement protrusion that extends in a longitudinal direction is provided on the fixed base side jig, and an engagement groove that engages with the engagement protrusion is provided on the cutter. The blade fixing structure of the blade polishing apparatus according to 1.

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