JP6069775B1 - Wire mesh grinding wheel with coolant guide base metal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve an improvement in grinding efficiency by minimizing the through-hole machining of a plate material from a thin plate to a thick plate by increasing grinding scraps, increasing the efficiency of coolant fluid in the grinding wheel, increasing grinding waste discharging efficiency, and shortening the grinding time. It relates to a wire mesh grinding wheel with a base metal. SOLUTION: A grinding hole for deep hole inner diameter 7 includes a wire mesh cylinder 8 in which a wire mesh material is formed in a long cylinder and abrasive grains D are fixed to the distal end surface thereof, and an inner peripheral surface on the base end side of the wire mesh cylinder. A center comprising a holding part to be fixed, a support part that entangles the inside of the wire mesh cylinder with a slight gap from the middle of the wire mesh cylinder and a tip pressing part 9d that holds the tip abrasive grain surface of the wire mesh cylinder from the inside. A rod-shaped coolant guide 9 that penetrates the hole h2 and an outer cylinder 10 that holds the outer periphery of the coolant guide and the rear end of the wire mesh cylinder are configured. [Selection] Figure 8

Description

  The present invention relates to an improvement that enables drilling and the like under optimum use conditions in a grinding tool such as a cup grindstone, a cylindrical grindstone, and an annular grindstone. In particular, the cup grindstone and the cylindrical grindstone deal with plate materials from thin plates to thick plates. Improve grinding efficiency by drilling holes, and improving the efficiency of grinding scraps, coolant efficiency in the grinding wheel, draining efficiency of grinding stones, and shortening grinding time for inner and outer circumferences, flat surfaces, grooves, etc. for annular grinding wheels. The present invention relates to a metal mesh grinding wheel with a coolant guide base metal that achieves the above.

  In recent years, in the cutting and grinding fields, a method for efficiently opening a through-hole in various plate materials is used for a plurality of water-passing holes on the peripheral side surface of a hollow cylindrical cup grindstone body having a grindstone portion on a side end surface. There is a grinding cup grindstone in which long hole portions are provided by drilling (see, for example, Patent Document 1).

  Furthermore, in the field of concrete buildings with different industrial fields, there are core drills that are frequently used for concrete processing. One known example of this core drill is to forcibly guide the abrasive supplied from the base of the cylindrical core to the inside of the core to avoid cutting and accumulation inside the core, thereby reducing supply loss. At the same time, the cutting efficiency is improved. Specifically, the core drill 4 includes a cylindrical core 14 attached to the apparatus main body 6 by means such as screwing, and a guide member 16 provided on a work surface F such as concrete inside the cylindrical core 14. It consists of. Cutting tips 18 are arranged at equal intervals in the circumferential direction at the distal end 14a of the cylindrical core 14, and a supply port 20 for introducing the abrasive K into the core together with cooling air is formed in the base portion 14b. ing. The guide member 16 is formed in a substantially conical shape that spreads toward the tip side of the cylindrical core 14, and has a mounting surface 16 a on the work surface F and a guide slope 16 b that guides the abrasive K. (For example, refer to Patent Document 2).

  Furthermore, in a core drill 23 having a core drill body 24 having a cylindrical wall 24a and a plurality of drilling blades 25 provided at the distal end of the core drill body 24, the core drill body 24 has a cut extending from the distal end toward the proximal end. The powder discharge groove 26 is formed so as to penetrate the cylindrical wall 24a, and the drilling direction dimension L1 of the chip discharge groove 26 is set larger than the drilling depth D1 (FIG. 10) with respect to the drilling target (for example, (See Patent Document 3).

  Further, there has been provided a grinding wheel that has a uniform abrasive grain distribution, an excellent abrasive grain holding power, and has a good sharpness and enhanced abrasive grain holding power over a long period of time. The structure is such that the abrasive grains 16 are arranged in all or part of the openings 15 of the titanium wire mesh 14 having openings smaller than the grain size of the abrasive grains 16, and the abrasive grains 16 protrude from the surface of the wire mesh 14. The wire mesh 14 and the abrasive grains 16 are fixed to the base metal 12 with a brazing material 17 (see, for example, Patent Document 4).

  Japanese Utility Model Publication No. 2-53367   Japanese Utility Model Publication No. 5-35217   Japanese Patent Laying-Open No. 2015-3426   JP 2000-237963 A

  The above-mentioned Japanese Utility Model Laid-Open No. 2-53367 is a grinding cup grindstone in which a plurality of water passage long holes are formed in the peripheral side surface of a hollow cylindrical cup grindstone body. Therefore, it can be expected to cool the tip blade portion from a plurality of water flow holes and to discharge grinding waste. However, in the drilling of holes from a certain thickness to a thick plate, the minimum amount of grinding waste is generated, the efficiency of discharging this grinding waste is increased, and the coolant is supplied and discharged through the grinding wheel efficiently to the cutting edge. There is a problem that it is inferior. Therefore, it is impossible to improve the grinding efficiency by increasing the machining efficiency and shortening the grinding time in the drilling of the hole in the thick plate.

  The above-mentioned Japanese Utility Model Laid-Open No. 5-35217 is a core drill for crushing concrete, and forcibly guides the abrasive to the cutting site and avoids stagnation or accumulation inside the core to reduce supply loss. It is said to improve cutting efficiency. However, when drilling a metal material, especially a carbon fiber reinforced plastic plate, it is a structure of a carbon fiber reinforced plastic plate in which the fiber direction is laminated with a sheet material made of a sheet of carbon fiber yarns, When normal processing is performed with the core drill, the cut carbon fiber yarn group is entangled with the cutting tool (cutting tip), and accurate drilling cannot be performed. Furthermore, since the abrasive is sprayed with compressed air and supplied into the core from the base of the cylindrical core (distant from the processing point), it is diffused and stays inside the core, and the guide slope that guides the abrasive K Even if it has, it is not guided to a cutting part effectively. In particular, during deep hole machining, the mist-like abrasive (only reaching compressed air) is difficult to reach a deep machining point, and there remains a problem that improvement in cutting efficiency cannot be expected. In addition, since the compressed air that reaches the deep hole cutting tip is sucked by the suction pipe, the abrasive material does not stay at the tip of the tip and only passes at a high speed. Lubricant cooling (reduction of frictional resistance, heat removal, etc.) by the abrasive is not expected and is forced to be reduced.

  Further, JP-A-2015-3426 is a core drill, and a chip discharge groove extending from the distal end to the base end is formed in the core drill main body in a manner penetrating the cylindrical wall, and the chip discharge groove The dimension of the drilling direction is set to be larger than the drilling depth for the drilling object, thereby increasing the efficiency of chip discharge. However, since the chip discharge groove is formed by spirally penetrating the cylindrical wall of the core drill body, it is assumed that there is a chip discharge effect at first glance. Is not supplied, and the cooling action against the heat generated at the processing point cannot be obtained. In addition, the positive chip discharging action can be obtained only when the drill is rotating, and it is governed by the number of rotations of the drill. To do.

  Further, Japanese Patent Application Laid-Open No. 2000-237963 is a disc grinding wheel (annular grinding wheel), which is a grinding wheel with enhanced abrasive grain holding power. However, the wire net and the abrasive grains fixed to this surface are fixed to the base metal by the brazing material. However, there is a problem that grinding scraps accumulate in the wire mesh and are not discharged and are not discharged, and the grinding function is immediately lost unless they are intermittently cleaned.

In the present invention, as a result of continuing research and development in view of various problems found in disc grindstones (annular grindstones), drilling thick plates and concrete with cylindrical blades such as the above-mentioned cup grindstones and core drills. It turns out that a concrete solution is essential.
(1) In the drilling of holes from thin plates to thick plates and grinding of inner and outer circumferences, flat surfaces, grooves, etc., the efficiency of the coolant fluid to the processing points and grinding points, the efficiency of discharging grinding scraps, and the shortening of the grinding time Development of a new grinding wheel that achieves improved grinding efficiency.
(2) In the drilling of thick plate holes with a cup grindstone and the grinding of inner and outer circumferences, flat surfaces, grooves, etc. with a disc grindstone, the generation of the minimum amount of grind and the discharge efficiency of this grind is increased. By passing through the inner mesh and ejecting efficiently to the cutting edge, and consequently improving the grinding efficiency, the machining efficiency can be increased and the grinding time can be shortened.
(3) Improvement of the cutting process for CFRP having weak strength in the direction orthogonal to the linear direction of the carbon fiber yarn as well as general metal plate and concrete.
(4) It is possible to rationally collect the dust that becomes cutting waste and grinding waste by the flow of coolant while protecting the environment.

  The present invention has succeeded in providing a metal mesh grinding wheel with a coolant base metal that comprehensively solves the solutions (1) to (4). In other words, in the processing of through holes from thin plates to thick plates and grinding of inner and outer circumferences, flat surfaces, grooves, etc., the minimum amount of grinding debris, the efficiency of coolant supply from the through hole in the grindstone to the cutting edge, and the removal efficiency of grinding debris Improved grinding efficiency by shortening the grinding time.

Coolant guide base metal with a wire mesh grinding wheel according to claim 1 to achieve the above object, a wire mesh cylindrical body obtained by fixing the abrasive grains to the periphery and the distal end surface of the cylinder to form a wire mesh material tall cylindrical, the A holding part that fixes the inner peripheral surface of the proximal end of the wire mesh cylinder, a middle part that is inserted through the wire mesh cylinder with a slight gap from the middle to the distal side of the wire mesh cylinder, and the front abrasive grain surface of the wire mesh cylinder And a rod-shaped coolant guide that penetrates the center hole, and an outer cylinder that holds the outer periphery of the coolant guide and the rear end of the wire mesh cylinder. It is characterized by that.

According to a second aspect of the present invention, in the wire mesh grinding wheel with a coolant guide base metal according to the first aspect, the support portion provided on the coolant guide is directed from the middle of the wire mesh cylinder to the tip side toward the inner peripheral surface of the wire mesh cylinder. A large number of small holes are arranged, and the grinding fluid or the grinding gas from the center hole of the arbor is supplied to the inner peripheral surface of the wire mesh cylinder, the tip abrasive grain surface, and the workpiece processing point .

A third aspect of the present invention is the wire mesh grinding wheel with a coolant guide base metal according to the first aspect, wherein the abrasive grains are diamond, CBN electrodeposited abrasive grains, WA, GC abrasive grains, or the like .

According to a fourth aspect of the present invention, in the wire mesh grinding wheel with a coolant guide base metal according to the first aspect, the abrasive grains are fixed to the surface of the wire rod crossed to form a mesh of the metal mesh cylinder, and are ground into the space holes of the mesh. The liquid or the grinding gas can flow .

According to a fifth aspect of the present invention, in the metal mesh grinding wheel with a coolant guide base metal according to the first aspect, the metal mesh material is a hollow wire having a through hole through which a grinding liquid or a grinding gas can flow .

According to a sixth aspect of the present invention, in the metal mesh grinding wheel with a coolant guide base metal according to the first aspect, the metal mesh material has a multi-mesh structure disposed on both inner and outer peripheral surfaces of a cylindrical core material .

The wire mesh cylindrical grinding wheel with coolant guide base metal of the present invention is particularly effective in deep hole grinding and deep through hole machining. Grinding efficiency can be improved. In particular, in order to minimize the generation of grinding scraps and increase the efficiency of grinding scraps, the coolant is passed through the coolant guide and is efficiently ejected to the abrasive grains and processing points of tall metal mesh cylinders. By improving, it is possible to shorten the grinding time by increasing the processing efficiency and grinding efficiency in deep hole grinding and deep through-hole processing, and increasing the efficiency of grinding waste discharge.

  In addition, dust that becomes cutting waste and grinding waste is actively and reasonably collected from the mesh gap of the metal mesh body by the coolant liquid from the coolant guide, and environmental conservation can be achieved. That is, there is no peeling of the abrasive grains during grinding, and the grinding liquid can penetrate (wet) the surface of the cutting edge abrasive grains from the inside of the cutting edge. Furthermore, when drilling a deep hole, the grinding fluid can be reliably reached at the cutting edge. Therefore, the grinding wheel edge (abrasive grain) always fills the grinding fluid from the internal grooves and holes, and the blade edge cooling effect, grinding dust discharge effect, reduction effect of grinding resistance, heat generation reduction effect, grinding efficiency improvement effect, etc. are great. I can expect.

  BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view illustrating an assembly of a wire mesh grinding wheel with a coolant guide base metal according to a first embodiment of the present invention.   It is sectional drawing of the metal-mesh cylinder, a coolant guide, a metal-mesh body, an outer cylinder body, and a housing in the metal-mesh grinding wheel with a coolant guide base metal.   It is action | operation sectional drawing of the metal-mesh grinding wheel with a coolant guide.   It is action | operation sectional drawing of the core leaving process of the metal-mesh cylinder grinding grindstone with a coolant guide.   It is the tip abrasive grain of the metal-mesh cylinder of the metal-mesh grinding wheel with a coolant guide, and its mesh | photography photograph.   It is a perspective view which made the metal-mesh cylinder the double structure.   It is a perspective view which uses a wire-mesh cylinder as a solid wire and a hollow wire.   FIG. 7 shows a second embodiment of the present invention, and is a cross-sectional view and an assembled cross-sectional view of a wire mesh cylinder, a coolant guide, and an outer cylinder of a grinding hole for deep hole inner diameter.   FIG. 8 is a diagram showing the operation of the grinding hole for deep hole inner diameter according to the second embodiment of the present invention.   FIG. 9 is an assembly process diagram of a wire mesh ring body and a coolant guide for fitting and fixing the inner peripheral surface side according to the third embodiment of the present invention.   FIG. 10 is an assembly process diagram of a wire mesh ring body and a fitting portion that fits and fixes the inner peripheral surface side according to a fourth embodiment of the present invention.   It is process drawing which processes the metal-mesh ring body of this invention to a tube shape.   FIG. 10 is a process diagram of a flat bottom grindstone using a flat grindstone forming jig according to a fifth embodiment of the present invention.   The 5th Embodiment of this invention is shown, and it is a perspective view and a mesh figure of the various processing examples by a flat bottom grindstone.   It is sectional drawing of the conical grinding grindstone by the wire-mesh ring body and fitting part of 6th Embodiment of this invention.   It is sectional drawing of the chamfering grindstone by the metal-mesh ring body and fitting part of 7th Embodiment of this invention.   It is a press molding figure of the metal-mesh body of 7th Embodiment of this invention.   It is sectional drawing of the chamfering trepan grindstone of 8th Embodiment of this invention.   It is an effect | action figure of the chamfering grindstone of 8th Embodiment of this invention.

  Hereinafter, with reference to FIG. 1 thru | or FIG. 19, the metal-mesh grinding wheel with a coolant guide base metal which becomes each embodiment of this invention, the assembly process of this grinding stone, and an example of a process are demonstrated one by one.

The configuration and operation of the wire mesh grinding wheel 2 with coolant guide base metal according to the first embodiment of the present invention will be described with reference to FIGS. First, FIG. 1 shows a cross-sectional configuration of a wire mesh grinding wheel 2 with a coolant guide base metal. First, wire mesh cylinder 3, as shown in FIGS. 1 and 2 wire mesh material made of hollow wire 3b is also solid line in material 3a drilled through holes h as shown in FIG. 7, the tip is formed in a cylindrical The abrasive grains D are fixed to the surface 3c and the peripheral portion 3d. The abrasive grain D is diamond, CBN electrostatic Chakutogitsubu or WA, a GC abrasive grains or the like. Furthermore, the abrasive grains, as shown in FIG. 5, a wire mesh cylinder 3 mesh structure crossed wire 3a was order to the or fixed to the surface of the 3b, grinding fluid CO or the space hole h1 of the mesh is The grinding gas CE can be distributed. As shown in FIG. 1, a coolant guide base metal (hereinafter referred to as “coolant guide”) 4 is cylindrical and is inserted into the inner peripheral surface of the wire mesh cylinder with a slight gap. Furthermore, it is thin and has a pair of notches 4a provided at the front end, and is fitted into a stepped portion 5a of the housing 5 having a hole h2 formed in the center at the rear end of the coolant guide. The outer cylinder (collar) 6 fits the outer periphery of the wire mesh cylinder 3 that integrally holds the rear end of the casing 5. By projecting and retracting the casing in the axial direction O, the coolant guide 4 in the outer cylinder and the tip of the wire mesh cylinder 3 are adjusted to increase or decrease the protrusion amount X from the tip of the outer cylinder 6. As shown in FIG. 3, the outer cylinder (collar) 6 is held by a tool holder attached to the main shaft, and the grinding fluid CO fork is fed from the center hole h2 of the housing 5 to the center hole (both not shown) of the main shaft arbor. Is configured to supply the grinding gas CE to the processing points P of the abrasive grains D and the workpiece W while being guided by the inner wall (hole h3) of the coolant guide 4.

The operation of the metal mesh grinding wheel 2 with the coolant guide base metal is shown in FIG. The processing content is not only a general metal plate material and concrete, but also a core leaving process including a cutting process for CFRP having a low strength in the direction orthogonal to the linear direction of the carbon fiber yarn.
First, prior to the core-removing process, the metal mesh grinding wheel 2 with the coolant guide base metal is mounted with an outer cylinder (collar) 6 on the tool holder at the tip (arbor) of the spindle of the processing machine, and the grinding fluid is fed by the center through of the spindle. CO or grinding gas CE or the like is supplied from the arbor of the center hole in the outer cylinder of wire mesh grinding wheel 2 (color) 6. 4A, the wire mesh grinding wheel 2 is lowered, and the coolant guide 4 protruding from the tip of the outer cylinder 6 and the tip of the wire mesh cylinder 3 are set to the processing point P of the workpiece W. Hit it. In particular, the tip ring of the coolant guide 4 closes the inside of the machining point P of the workpiece W. This, grinding liquid CO or grinding gas CE is supplied to the outer cylinder (color) in 6, the coolant guide 4 from the hole h2 of the flange member 5 fits into the inlet bore h3 inflow and passage to the tip of the From the notch 4a, the tip D 3c of the wire mesh cylinder 3 and the abrasive grains D fixed to the peripheral portion 3d are supplied without waste, cooled and lubricated, and also supplied to the processing point P of the workpiece W 100% efficiently, Promotes the discharging action of grinding waste generated from the processing point.

Further, when the above-described core-remaining processing is advanced, the wire mesh cylinder 3 is also lowered in conjunction with the lowering of the outer cylinder 6 and the machining point P of the workpiece W is deeply cut as shown in FIG. The coolant guide 4 is supplied without waste from the notch 4a at the tip to the tip surface 3c of the wire mesh cylinder 3 and the abrasive grains D fixed to the peripheral portion 3d for cooling and lubrication, and at the processing point P of the workpiece W. Is also supplied 100% efficiently, and maintains the discharging action of grinding scrap generated from the processing point. Finally, as shown in FIG. 4 (c), when the wire mesh cylinder 3 descends in conjunction with the lowering of the outer cylinder 6 and the processing point P of the workpiece W reaches the back surface, the tip surface 3c of the wire mesh cylinder 3 is reached. Protrudes from the back surface and drops the remaining piece W1 to complete the core remaining processing. At this time, the grinding liquid CO or grinding gas CE, even abrasive grains D and mesh spaces h1 that was fixed from once tip and the distal end surface 3c of the hole and the wire gauze cylinder 3 in the peripheral portion 3d of the coolant guide inside 4 As shown in FIG. 5, the mesh and abrasive grains D are cleaned, cooled, and lubricated, and the processing through-hole W2 of the workpiece W is also cleaned as shown in FIG.

Wire mesh material 3a or 3b of the wire mesh cylinder 3, as shown in FIG. 6, a wire mesh cylinder of a multi-network structure in which a double on both sides of the inner peripheral surface of the cylindrical core material (a thin cylindrical body 40) (Double cylinder) 30 may be used. With this double-structured wire mesh cylinder 30, the rigidity of the wire mesh cylinder 30 is enhanced, and the width of the abrasive grains D and the like adhering to the front end surface 3c and the peripheral portion 3d is more than doubled so that the grinding efficiency is improved. Will also improve dramatically.

As described above, according to the wire mesh grinding wheel 2 with the coolant guide base metal according to the first embodiment, the following effects can be expected.
In the process of leaving the core including cutting processing for CFRP, which is weak in the direction perpendicular to the linear direction of the carbon fiber yarn, as well as general metal plate and concrete, the tip surface 3c of the wire mesh cylinder 3 and this The abrasive grains D fixed to the peripheral portion 3d and the mesh space h1 are supplied without waste, and the mesh and abrasive grains D are cleaned, cooled and lubricated, and the inside of the processing through-hole W2 of the workpiece W is also cleaned to discharge grinding waste. The action can be promoted. Further, when a wire mesh material made of a hollow wire 3b having a through hole h is formed in a cylinder and the abrasive grains D are fixed to the tip surface 3c and the peripheral portion 3d, lubrication and cooling of the mesh details of the wire mesh cylinder 30 are performed. Grinding waste can be improved dramatically. Furthermore, by using the metal mesh cylinder 30 having a multi-mesh structure, the rigidity of the metal mesh cylinder 30 is increased, the width of the abrasive grains D and the like is increased more than twice, and the grinding efficiency can be dramatically improved.

  As a result, the supply of the coolant liquid to the processing point / grinding point can be efficiently improved without waste, thereby improving the grinding efficiency by increasing the efficiency of discharging the grinding waste and shortening the grinding time. In particular, in order to minimize the generation of grinding scraps and increase the efficiency with which these grinding scraps are discharged from the gaps in the metal mesh body, the coolant liquid passes through the gaps in the coolant guide and passes through the gaps in the metal mesh cylinders to make abrasive grains and processing points. Can be efficiently ejected. That is, by improving the grinding efficiency, it is possible to increase the processing efficiency and shorten the grinding time.

Next, with reference to FIG. 8, the grinding hole for deep hole inner diameter 7 with the coolant guide base metal, the wire net cylinder 8, the coolant guide 9, and the outer cylinder 10 according to the second embodiment will be described.
Configuration of the wire mesh cylinder 8, as shown in FIG. 7, or the medium solid material 8a forms a wire mesh material made of a hollow wire 8b opening the hole h in tall cylindrical and distal end surfaces 8c the peripheral portion 8d Abrasive grains D are fixed to each other. The wire mesh material may have a multi-mesh structure arranged on both inner and outer peripheral surfaces. Further, the abrasive grain D, similar to the coolant guide base metal with a wire mesh grinding wheel 2, diamond, CBN electrostatic Chakutogitsubu or WA, a GC abrasive grains or the like. Furthermore, the abrasive grains, as shown in FIG. 5, is secured to the crossed so the wire 8a or 8b surface in order to constitute a mesh of wire mesh cylinder 8, the grinding liquid CO also in the space hole h1 of the mesh grinding Gas CE can be distributed. The coolant guide 9 has a rod shape penetrating the center hole h2, and includes a large-diameter portion 9a, a holding portion 9b, a middle abdominal portion (coolant injection portion) 9c, and a tip pushing portion 9d. Further, the center hole h2 formed in the coolant guide 9 has a large number of holes toward the inner peripheral surface of the wire mesh cylinder 8 that surrounds the center part (coolant injection part) 9c of the coolant guide from the middle to the tip side of the wire mesh cylinder. small holes h4 were arrayed, also grinding fluid from the arbor of the center hole has a configuration for supplying a grinding gas in the machining point P of the inner peripheral surface and the front end abrasive face D and the work of the wire mesh cylinder. As shown in the lowermost part of FIG. 8, the outer cylinder 10 has a pipe shape, and the inner hole 10 a fits and holds the outer periphery of the large-diameter portion 9 a and the wire mesh cylinder 8. That is, the holding part for fixing the inner peripheral surface of the base end side of the wire mesh cylinder in FIG. 8 and the support part and the wire mesh cylinder that entangle the inside of the wire mesh cylinder with a slight gap from the middle to the tip side of the tall metal mesh cylinder. A rod-shaped coolant guide 9 comprising a tip pressing portion 9d for holding the tip abrasive grain surface of the body from the inside and penetrating the center hole, and an outer cylinder for holding the outer periphery of the coolant guide and the rear end portion of the wire mesh cylinder 8 Consists of a body 10.

Next, in FIG. 9, the operation of the grinding wheel 7 for deep hole inner diameter with coolant guide base metal will be described. The deep hole inner diameter grinding wheel 7 has an outer cylindrical body 10 held by a tool holder attached to the tip of a spindle. First, the grinding liquid CO or grinding gas CE from rotation N and the main shaft in Arbor of the spindle is press-fitted into the center hole h2 drilled in coolant guide 9, the middle portion over the front end side from the middle of the wire mesh cylinder (coolant application portion ) 9c grinding fluid or from toward the inner peripheral surface of the wire mesh cylinder 8 small holes h4 surrounding together with grinding gas is injected and supplied from the front end abrasive face D of the wire mesh cylinder to the machining point P of the work The Thus, upon processing and grinding of deep hole W4 tall work W3, by high pressure coolant (grinding fluid CO or grinding gas CE), grinding fluid or grinding gas wire mesh cylinder is evenly injected from the small holes h4 Since the medium-high state is maintained by inflating 80 in the outer circumferential direction, precise deep hole W4 machining and grinding are performed.

According to the grinding wheel for deep hole inner diameter 7 with the coolant guide base metal according to the second embodiment, the same effect as the metal mesh grinding wheel 2 with the coolant guide base metal according to the first embodiment can be obtained. upon processing and grinding of deep hole W4 such workpiece W3, high pressure coolant (grinding liquid CO or grinding gas CE) is circumferentially grinding fluid or grinding gas wire mesh cylinder 80 is uniformly ejected from the small holes h4 It can be inflated to maintain a medium-high state, and precise deep hole W4 machining and grinding can be performed.

  Furthermore, as shown in FIG. 10A and FIG. 12, the ring-shaped wire mesh grinding wheel 11 of the third embodiment is formed as a wire mesh ring body 13 in which a wire mesh material 12 is first formed into a cylinder and then wound into a donut shape. . Subsequently, as shown in FIG. 10B, a metal mesh ring body 13 in which abrasive grains D are fixed to the outer peripheral surface (may be fixed in a later step) is obtained. Subsequently, as shown in FIG. 10C, the coolant guide base 14 includes a concave fitting portion 14a for fitting and fixing the inner peripheral surface side of the wire mesh ring body, and a support portion 14b held by the tool holder. As shown in FIG. 10D, the wire mesh ring 13 is held in the fitting portion 14a. A through hole h5 formed in the support portion of the coolant guide communicates with a large number of discharge ports h6 formed in the outer peripheral surface of the fitting portion, and as shown in FIG. A wire mesh grinding wheel 11 with a coolant base metal having an abrasive grain D fixed to the surface is constituted.

  Furthermore, in the metal mesh grinding wheel 15 with the coolant base metal of the fourth embodiment, as shown in FIG. 11A, the coolant guide base metal 16 is fitted to the support portion 16f and the inner peripheral surface side of the wire mesh ring body 13. It consists of concave fitting parts 16b and 16c to be fixed together, and is a left and right split fitting part at the minimum diameter part of the concave part. The wire mesh ring 13 is sandwiched between the split fitting portions 16b and 16c. Then, as shown in FIG. 11B, the screw rod 16d is fastened and fixed by a fastening member (nut) 16e.

  Furthermore, the metal mesh grinding wheel 17 of the fifth embodiment shown in FIG. 13 is the same as the above-described metal mesh grinding wheel 11 of the third embodiment or the cylindrical grinding wheel 15 of the fourth embodiment. After fitting and fixing to the fitting portion 14a or 16a of the coolant guide 16, the outer peripheral surface of the wire mesh ring body is pressed and formed on the flat grindstone surface with a jig G, and the abrasive grains D are electrodeposited on the flat grindstone surface. It was set as the structure formed with apparatus ED.

  Various examples of processing by the metal mesh grinding wheel (flat grinding wheel surface) 17 of the fifth embodiment will be described with reference to FIG. FIG. 14A shows grinding of the outer peripheral surface of the round bar W11. FIG. 14B shows grinding of the surface of the flat plate W12. FIG. 14C shows grinding of the small diameter portion S of the round bar W13. FIG. 14D shows grinding of the groove M of the flat plate W14. FIG. 14E shows grinding of the inner hole H of the round bar W15. However, the present invention is not limited to these processing examples, and various cutting processes and grinding processes can be performed. Since the operation and effect of the metal mesh grinding wheel 2 with the coolant guide base metal can be expected, description thereof will be omitted.

Further, the conical grinding wheel 18 of the sixth embodiment shown in FIG. 15, in the cylinder grinding wheel 11 and the cylindrical body the grinding wheel 15, similarly to FIG. 13, the wire mesh Watai 13 of the coolant guide 14 or 16 after fitted and fixed to the fitting portion 14a or 16a, so as to the outer peripheral surface of the wire mesh wheel body and the conical grinding surface, is pressure formed in the jig G, to electrodeposition form abrasive grains D on the conical grinding surface 13e A wire mesh grinding wheel with a coolant base metal was used.
Thus, cutting or grinding of the tapered surface W6 cylindrical workpiece W5 is efficiently carried out smoothly by the grinding fluid CO or is ejected grinding gas CE from mesh gap or line bore of the conical grinding surface 13e .

Also, wire mesh grinding wheel comprising a chamfering grindstone 19 of the seventh embodiment shown in FIGS. 16 and 17, also medium-solid material 3a is a wire mesh material made of a hollow wire 3b opening the hole h a conical net member 20, This is fitted into the fitting portion 23 of the coolant guide base 22, the conical metal mesh body 20 is fitted into the cap 21, and the cap 21 is screwed onto the screw portion 24 of the coolant guide base 22. As shown in FIG. 17, the conical metal mesh body 20 is shaped by placing the flat metal mesh material 3 on a mold 26 provided with a conical recess 27, and placing the hammer 25 in the conical recess 27 by hydraulic pressure or pneumatic pressure. It is formed by pressing.
According to the chamfering grindstone 19, similarly to the conical grinding grindstone 18, the taper surface W6 of the cylindrical workpiece W5 can be cut and ground. The above processing provides the same effects as the wire mesh grinding wheel 2 with the coolant guide base metal of the first embodiment.

18 and FIG. 19, the wire mesh grinding wheel used as the chamfered conical grindstone 36 of the eighth embodiment is press-molded into a wire mesh body 31 composed of a cylindrical portion and a conical portion. It is fitted to the fitting portion 34 of the coolant guide base 32, the metal mesh body 31 is fitted into the cap 35, and the cap 35 is screwed to the screw portion 33 of the coolant guide base 32.
According to the chamfered conical grindstone 36, the chamfering of the tapered surface W8 of the workpiece W7 and the core leaving hole processing W9 can be simultaneously performed by cutting and grinding. In addition, W10 is the remaining piece cut out by the core leaving process. The same effect as the metal mesh grinding wheel 2 with the coolant guide base metal of the first embodiment can be obtained by the above processing.

  As described above, according to the metal mesh grinding wheels 2, 7, 11, 15, 17, 18, 19, 36, etc. with each coolant guide base metal of the present invention, the following effects are obtained. First, in the drilling of holes from thin plates to thick plates, the supply of coolant fluid to the processing and grinding points is improved without waste, thereby increasing the efficiency of discharging waste and reducing the grinding time. Can be improved. In particular, in order to minimize the generation of grinding scraps and increase the efficiency with which these grinding scraps are discharged from the gaps in the metal mesh body, the coolant liquid passes through the gaps in the coolant guide and passes through the gaps in the metal mesh cylinders to make abrasive grains and processing points. Is efficiently ejected. Thus, by improving the grinding efficiency, the processing efficiency can be increased and the grinding time can be shortened. Furthermore, in addition to drilling holes in a general metal plate or concrete, the cutting process for CFRP having a weak strength can be improved in the direction orthogonal to the linear direction of the carbon fiber yarn.

  Furthermore, according to the metal mesh cylindrical grinding wheel with coolant guide base metal of the second embodiment, particularly in deep hole grinding and deep through hole machining, the efficiency of the coolant liquid at the machining point / grinding point is increased, and the efficiency of discharging the grinding waste is increased. The grinding efficiency can be improved by shortening the grinding time. In particular, in order to minimize the generation of grinding scraps and increase the efficiency of grinding scraps, the coolant is passed through the coolant guide and is efficiently ejected to the abrasive grains and processing points of tall metal mesh cylinders. Improvements can improve machining efficiency and shorten grinding time.

  Furthermore, according to each wire guide cylindrical grinding wheel with coolant guide base metal, in the round bar grinding, surface grinding, groove grinding, inner diameter grinding, slope grinding, etc., the efficiency of the coolant liquid to the processing point / grinding point is increased and the grinding waste is discharged. Grinding efficiency can be improved by increasing efficiency and shortening grinding time. In particular, in order to minimize the generation of grinding scraps and increase the discharge efficiency of these grinding scraps, the coolant is passed through the coolant guide and efficiently ejected to the abrasive grains and processing points of the metal mesh ring body, improving the grinding efficiency. As a result, machining efficiency can be increased and grinding time can be shortened. In other words, the generation of the minimum amount of grinding scraps and the efficiency of discharging the grinding scraps, the grinding gas and coolant liquid are efficiently ejected to the cutting edge by passing through the grinding wheel, and the grinding efficiency is improved. Time can be shortened.

Furthermore, it is possible to rationally collect the dust that becomes cutting scraps and grinding scraps and to protect the environment.
That is, there is no peeling of the abrasive grains during grinding, and the grinding liquid can penetrate (wet) the surface of the cutting edge abrasive grains from the inside of the cutting edge. That is, when drilling a deep hole, the grinding liquid can reliably reach the cutting edge. Therefore, the grinding wheel edge (abrasive grain) always fills the grinding fluid, grinding gas, and internal holes from the internal small holes, the cutting edge cooling effect, the grinding dust discharge effect, the grinding resistance reduction effect, the heat generation reduction effect, the grinding efficiency improvement effect, etc. Can be expected greatly.

  This invention is good also as an embodiment which has arrange | positioned the dust collection cover and suction device which collect dust in the embodiment of each said grinding wheel. Furthermore, it is good also as an Example attached to the chopping tool holder. This drive source may be obtained for the grinding fluid CO that is pulsatingly compressed, or may be obtained for the pulsated compressed air of a compressed air supply source (air compressor).

2 Wire mesh cylindrical grinding wheel with coolant guide 3 Wire mesh cylinder 3a Solid wire 3b Hollow wire 3c Tip surface 3d Peripheral part 4 Coolant guide base metal (hereinafter referred to as coolant guide)
5 Housing 5a Step 6 Outer cylinder (color)
7 Grinding wheel for inner diameter of deep hole with coolant guide base 8 Wire mesh cylinder 8a Solid wire 8b Hollow wire 9 Coolant guide 9a Large diameter part 10 Outer cylinder 11 Ring-shaped metal mesh grinding wheel 12 Metal mesh 13 Wrapped in donut shape Wire mesh ring 14 Coolant guide base 15 Wire mesh grinding wheel 16 with coolant base metal Coolant guide base 17 Wire mesh grinding wheel 18 Cone grinding wheel 19 Chamfering grindstone 20 Cone wire mesh 21 Cap 22 Coolant guide base 23 Fitting part 24 Screw part 26 Mold 27 Conical recess 30 Wire mesh cylinder (double cylinder) 30
31 Metal mesh body 32 Coolant guide base metal 34 Fitting part 35 Cap 36 Chamfering conical grindstone 80 Metal mesh cylinder CO Grinding fluid CE Grinding gas D Abrasive ED Electrodeposition apparatus P Processing point H Inner hole h Through hole h1 Space hole (mesh space) )
h2 center hole h3 inner wall (hole)
h4 Small hole h5 Through hole O Axial core direction S Space W Work W1 Remaining piece W2 Processing through hole W3 Long work W4 Deep hole W5 Cylindrical work W6 Tapered surface W7 Work W8 Tapered surface W9 Remaining hole processing W10 Remaining piece W11 Round bar W12 Flat plate W14 Flat plate W15 Round bar

Claims (6)

A wire mesh cylinder in which a wire mesh material is formed in a long cylinder and abrasive grains are fixed to the front end surface of the cylinder and the periphery thereof, a holding portion that fixes the inner peripheral surface of the base end side of the wire mesh cylinder, and the wire mesh A rod-like shape consisting of a middle abdomen that passes through the wire mesh cylinder with a slight gap from the middle to the tip side of the cylinder, and a tip pushing part that holds the tip abrasive grain surface of the wire mesh cylinder from the inside, and penetrates the center hole coolant guide and said coolant guide and the outer cylinder and, by the configuration and the coolant guide base metal with a wire mesh grinding wheel, characterized in that for holding the outer periphery of the rear end portion of the wire mesh cylinder of. A large number of small holes are arranged in the support portion provided in the coolant guide from the middle to the front end side of the wire mesh tube toward the inner peripheral surface of the wire mesh tube, and the grinding liquid or grinding gas from the center hole of the arbor The wire mesh grinding wheel with a coolant guide base metal according to claim 1, wherein the wire mesh cylinder is supplied to the inner peripheral surface of the wire mesh cylinder, the tip abrasive grain surface, and the workpiece processing point . The wire mesh grinding wheel with coolant guide base metal according to claim 1, wherein the abrasive grains are diamond, CBN electrodeposited abrasive grains, WA, GC abrasive grains, or the like . The coolant according to claim 1, wherein the abrasive grains are fixed to the surface of a wire rod crossed to form a mesh of a wire mesh cylinder, and a grinding liquid or a grinding gas can flow through a space hole of the mesh. Wire mesh grinding wheel with guide base metal. The wire mesh grinding wheel with coolant guide base metal according to claim 1, wherein the wire mesh material is a hollow wire having a through hole through which a grinding fluid or a grinding gas can flow . The wire mesh grinding wheel with coolant guide base metal according to claim 1, wherein the wire mesh material has a multi-mesh structure arranged on both inner and outer peripheral surfaces of a cylindrical core material .