JP2021049631A - Seamless metal gauze grindstone and method for manufacture thereof, and grinding/honing method - Google Patents

Abstract

To provide a seamless metal gauze grindstone which increases flexibility of a metal gauze to the limit, perfectly eliminates forcible pressing of a metal gauze grindstone against a work-piece, and thus, can increase accuracy of a polished surface by polishing/honing to the limit, and a method for manufacture of the same.SOLUTION: One or a plurality of metal wires 1, 2 are knitted into any cylindrical knitted fabric to form a seamless metal gauze cylindrical body 30A which is capable of freely telescopic. An outer peripheral surface 5 of the seamless metal gauze cylindrical body is formed on a flat surface 6, and super abrasive grains G are electrically deposited onto the flat surface 6, thereby forming a seamless metal gauze grindstone 30.SELECTED DRAWING: Figure 11

Description

The present invention is a novel grinding wheel formed by a seamless wire mesh cylindrical body developed to suppress deterioration of the accuracy of the polished surface due to forced pressing and polishing of the grinding wheel against the work material and honing. The present invention relates to a seamless wire mesh grindstone developed so that the accuracy of the polished surface by polishing / honing can be maximized by increasing the flexibility of the wire mesh that is the main body of the grindstone to the limit, and the manufacturing method and grinding / honing method thereof.

In recent years, with respect to the coolant liquid essential for grinding and polishing, a grindstone called a wire mesh grinding wheel with a coolant guide base has been proposed as a representative of the grinding wheel having improved passability through the grindstone.
In the wire mesh grinding wheel, for example, the wire mesh material is formed into a cylinder and the wire mesh ring body in which the abrasive grains are fixed to the outer peripheral surface wound in a donut shape and the inner peripheral surface side of the wire mesh ring body are fitted and fixed. It is composed of a coolant guide provided with a concave fitting portion and a support portion held by the tool holder, and the through holes formed in the support portion of the coolant guide are a large number of release holes formed in the outer peripheral surface of the fitting portion. It is communicated with the exit (see, for example, Patent Document 1).

Further, the grindstone having the ability to pass the coolant into the grindstone is a wire mesh body in which a core wire having a through hole inside the core wire is formed in a tubular shape, and a bird's nest in which abrasive grains are fired or electrodeposited on the tip surface of the wire mesh body. In the shape grinding wheel, the grinding fluid or coolant liquid press-fitted from the through hole in the rear end core wire of the wire mesh body constituting the bird's nest-shaped grinding wheel is injected from the through hole opening at the tip of the core wire of the wire mesh body to the cutting edge abrasive grains. (See, for example, Patent Document 2).

Japanese Patent No. 6041248 Japanese Patent No. 6041249

Japanese Patent No. 6041248 and Japanese Patent No. 6041249 are both grindstones having the ability to pass coolant into the grindstone. This grindstone is a wire mesh grinding wheel with a coolant guide base, and the wire mesh material is a wire mesh grinding wheel formed in a cylindrical shape or in which a core wire having a through hole inside the core wire is formed by fixing the intersection of the meshes in a tubular shape. Therefore, although the coolant has excellent permeability, if it is strongly pressed against the grinding surface during the action of the grindstone, the entire hollow body is strongly and excessively deformed, and precise grinding is not guaranteed.

Therefore, the inventor of the present application first describes the detailed technical contents of this type of wire mesh elastic grindstone. That is, a wire mesh grindstone (commonly referred to as a Torinos grindstone) is a grindstone in which diamond or CBN is electrodeposited on a wire mesh, and its characteristics are several tens of times higher than those of conventional vitrified grindstones and superabrasive grain electrodeposition grindstones. The cooling capacity of the grindstone's liquid permeability and air permeability suppresses grinding burns, and the volume of the chip pocket is several tens of times that of the grindstone, making it possible to achieve overwhelming efficiency and quality of grinding.

However, the above-mentioned wire mesh elastic grindstone has a problem that when a forced pressing force of the wire mesh grindstone is applied to the work material, the grinding accuracy of the polished surface is reduced due to the repulsive force of the entire wire mesh body.
Further, in the above-mentioned wire mesh elastic grindstone, if the intersections of the vertical and horizontal wire mesh wires are fixed, the outer peripheral surface of the cylinder becomes a protruding shape and a wide flat surface cannot be obtained. There is a problem that the amount of electrodeposition of the CBN abrasive grains is minimized, efficient polishing work cannot be obtained, the rate of abrasive grains falling off is increased, and the life of the grindstone is reached at an early stage. Specifically, as shown in FIG. 1, the hard wire mesh grindstone 20 (showing only a part of the wire mesh body) electrodeposits the entire surface including the intersection CX of the wire mesh wires 1 and 2 intersecting vertically and horizontally (nickel). It is a wire mesh electrodeposition grindstone (hardened wire mesh grindstone) 20 which is plated) D1 and has a shape hardness as a whole. When the wire mesh body 100 is rolled onto a cylindrical hard wire mesh grindstone 20 and overlapped, the overlapped portion 20A becomes thick and this portion becomes extremely hard, and the entire circumference of the hard wire mesh grindstone 20 does not become uniform hardness for practical use. I can't serve it.

Therefore, as shown in FIG. 2, in order to make the hard wire mesh grindstone 20 (showing only a part of the wire mesh body) a soft soft wire mesh grindstone 10, the intersection CX of the wire mesh wires 1 and 2 intersecting vertically and horizontally is electrified. The wire mesh electrodeposition grindstone (soft wire mesh grindstone) 10 is a free crossing type that does not adhere (nickel plating) and has a soft shape as a whole. When this wire mesh body 200 is rolled into a cylindrical soft wire mesh grindstone 10 and overlapped, the overlapped portion 10A becomes thick and this portion becomes extremely hard, and the entire circumference of the soft wire mesh grindstone 10 does not become uniform hardness, which is practical. I can't serve it.
That is, at the portion where both edges of the wire mesh bodies 100 and 200 are overlapped, the net thickness is doubled and the hardness is also doubled or more, which is a great adverse effect on the grinding action.

In view of the demerits of both wire mesh grindstones 10 and 20 in which both edges are overlapped as described above, the inventor of the present application has refined a new seamless wire mesh grindstone that eliminates the overlapping portion of the wire mesh body in order to completely eliminate this merit. Researched and developed.

The seamless wire mesh grindstone according to claim 1, which is an object of the present invention, is formed by knitting one or a plurality of metal wires into an arbitrary tubular knitted fabric to form a stretchable seamless wire mesh cylinder, and the seamless wire mesh cylinder is formed. The outer peripheral surface of the wire mesh is formed on a flat surface, and the flat surface is electrodeposited with abrasive grains.

The seamless wire mesh cylindrical grindstone according to claim 2 is the seamless wire mesh cylindrical grindstone according to claim 1, wherein one or a plurality of metal wires are woven into an arbitrary tubular knitted fabric to form a stretchable seamless wire mesh cylindrical body. The seamless wire mesh cylinder is formed by stacking a plurality of seamless wire mesh cylinders having slightly different outer diameters in a nested manner and press-molding them by arbitrary dimensions in the axial direction to form a disk body, and the outer peripheral surface of the disk body is formed. It is characterized in that it is formed on a flat surface and the abrasive grains are electrodeposited on the flat surface.

The seamless wire mesh cylindrical grindstone of claim 3 is a seamless wire mesh cylinder made by pressing a single metal wire into a flat knit, rubber knit, pearl knit, or the like into a cylindrical shape with a pair of uneven dies. It is characterized in that the outer peripheral surface of the seamless wire mesh cylinder is formed as a flat surface, and abrasive grains are electrodeposited on the flat surface.

The seamless wire mesh cylindrical grindstone according to claim 4 is the seamless wire mesh cylindrical grindstone according to claim 3, wherein one metal wire is knitted into flat knitting, rubber knitting, pearl knitting, etc. The seamless wire mesh cylinder is formed by pressing it into a cylindrical shape with a mold, and the seamless wire mesh cylinder is a single unit or a plurality of seamless wire mesh cylinders having slightly different outer diameters are stacked in a nested shape and pressed by arbitrary dimensions in the axial direction. It is characterized in that it is formed into a disk body, the outer peripheral surface of the disk body is formed on a flat surface, and abrasive grains are electrodeposited on the flat surface.

The seamless wire mesh cylindrical grindstone according to claim 5 is the seamless wire mesh grindstone according to any one of claims 1 to 4, wherein a sensor such as a thermoelectric wire is mixed in the metal wire and woven into the knitted fabric to expand and contract. In order to form a flexible seamless wire mesh cylindrical body and to enable abnormality detection of heat, sound, vibration, etc. of the ground surface of the seamless wire mesh cylindrical body, the above abnormality detection is performed by a wireless transmission means provided in the seamless wire mesh cylindrical grindstone. It is characterized in that it is transmitted to an external detector via a wire in the grindstone shaft.

The method for manufacturing a seamless wire mesh cylindrical grindstone according to claim 6 is the seamless wire mesh grindstone according to any one of claims 1 and 2, wherein the knitting machine for manufacturing the seamless wire mesh cylindrical body is a copying core placed at the center thereof. And, the round base arranged on the upper part of the above-mentioned copy core is provided with a plurality of metal wires wound around the bobbin, and the multiple metal wires provided on the above-mentioned round base are knitted into a pile knitted fabric or other cylindrical shape with the copy core. The outer peripheral surface of the cylinder knitted into a cylindrical shape is formed as a flat surface, and the abrasive grains are electrodeposited on the flat outer peripheral surface.

The method for manufacturing a seamless wire mesh cylindrical grindstone according to claim 7 is the seamless wire mesh grindstone according to any one of claims 1 and 2. The process of knitting into a body and the process of superimposing a plurality of seamless wire mesh cylinders having a slightly different outer diameter and pressing them in the axial direction to form a disk body. It is characterized by comprising a step of forming the outer peripheral surface of the disk body into a flat surface and a step of electrodepositing abrasive grains on the flat surface.

The seamless wire mesh cylindrical grindstone according to claim 8 is the seamless wire mesh grindstone according to any one of claims 1 to 4, wherein the surface of the non-metal wire is metal-coated instead of the metal wire. The outer peripheral surface of the cylindrical body knitted into a cylindrical shape is formed as a flat surface, and the abrasive grains are electrodeposited on the flat outer peripheral surface.

The grinding / honing method using the seamless wire mesh cylindrical grindstone of claim 9 receives the pulsating pressure of the coolant liquid in the rubber bag lined over the entire inner diameter of the seamless wire mesh grindstone in the seamless wire mesh grindstone according to any one of claims 1 to 8. The diameter of the seamless wire mesh grindstone is increased when the pulsating pressure is high, and the diameter of the seamless wire mesh grindstone is reduced when the pulsating pressure is low. It is a feature.

The grinding / honing method using the seamless wire mesh cylindrical grindstone according to claim 10 is the grinding / honing method using the seamless wire mesh grindstone according to claim 9, wherein the coolant liquid is controlled from the coolant supply device by the NC control device and the NC program. The static pressure or pulsating pressure coolant is sent into the shaft core that supports the seamless wire mesh cylindrical grindstone from the center through hole drilled in the grindstone mounting spindle, and the coolant is supplied to the rubber bag inside the seamless wire mesh grindstone. It is a feature.

The seamless wire mesh grindstone according to claim 1 is formed by knitting one or a plurality of metal wires into an arbitrary tubular knitted fabric to form a stretchable seamless wire mesh cylinder, and the outer peripheral surface of the seamless wire mesh cylinder is a flat surface. The structure is such that the abrasive grains are electrodeposited on the flat surface.
As a result, the pressing force is reduced and eliminated by the flexibility of the entire wire mesh body against the forced pressing force by the seamless wire mesh grindstone against the work material, and there are no scratches, and the polished surface is delicate and highly accurate grinding and honing. Is possible.

The seamless wire mesh grindstone according to claim 2 is the seamless wire mesh grindstone according to claim 1, wherein one or a plurality of metal wires are woven into an arbitrary tubular knitted fabric to form a stretchable seamless wire mesh cylindrical body. The seamless wire mesh cylinder is formed by stacking a single unit or seamless wire mesh cylinders with slightly different outer diameters in a multiple nested shape and compression molding by arbitrary dimensions in the axial direction to form a disk body, and the outer peripheral surface of the disk body is It is formed on a flat surface, and the abrasive grains are electrodeposited on the flat surface.
As a result, the seamless wire mesh grindstone can obtain the same function as the conventional disc grindstone. Moreover, even against the forced pressing force by the seamless wire mesh grindstone against the outer peripheral surface of the work material, the pressing force is alleviated or reduced and eliminated by the flexibility of the entire wire mesh body, and there are no scratches and the polished surface is delicate. High-precision grinding and honing are possible.

The seamless wire mesh grindstone according to claim 3 is a seamless wire mesh cylindrical body made by pressing a single metal wire into a flat knit, rubber knit, pearl knit, or the like into a cylindrical shape with a pair of uneven dies. Since the outer peripheral surface of the seamless wire mesh cylinder is formed on a flat surface and the abrasive grains are electrodeposited on the flat surface, the same operation as that of the seamless wire mesh grindstone according to claim 1 can be obtained. Be done.
That is, the pressing force is reduced and eliminated by the flexibility of the entire wire mesh body against the forced pressing force by the seamless wire mesh grindstone against the work material, and there are no scratches, and delicate and highly accurate grinding and honing of the polished surface can be performed. It will be possible. Further, it can correspond to a short size of the grindstone, and various seamless wire mesh grindstones can be formed from one wire mesh flat body.

The seamless wire mesh grindstone according to claim 4 is the seamless wire mesh cylindrical grindstone according to claim 3, wherein one metal wire is knitted into flat knitting, rubber knitting, pearl knitting, etc. The seamless wire mesh cylinder is formed by pressing it into a cylindrical shape with, and the seamless wire mesh cylinder is a single unit or a plurality of seamless wire mesh cylinders having slightly different outer diameters are laminated in a nested manner and press-molded by arbitrary dimensions in the axial direction. The outer peripheral surface of the disk body was formed into a flat surface, and the abrasive grains were electrodeposited on the flat surface.
As a result, the same operation as that of the seamless wire mesh grindstone according to claim 2 can be obtained. That is, the pressing force is reduced and eliminated by the flexibility of the entire wire mesh body against the forced pressing force by the seamless wire mesh grindstone against the work material, and there are no scratches, and delicate and highly accurate grinding and honing of the polished surface can be performed. It will be possible.

The seamless wire mesh grindstone according to claim 5 is the seamless wire mesh grindstone according to any one of claims 1 to 4, wherein a sensor such as a thermoelectric pair is mixed in the metal wire and woven into the knitted fabric to expand and contract. In order to form a seamless wire mesh cylindrical body and enable abnormality detection of heat, sound, vibration, etc. of the ground surface of the seamless wire mesh cylindrical body, the above abnormality detection is a wireless transmission means or a grindstone provided in the seamless wire mesh cylindrical grindstone. The configuration is such that it is transmitted to an external detector via a wire in the shaft.
As a result, when an abnormality such as heat, sound, or vibration of the grinding surface during the grinding / honing operation that progresses momentarily occurs, the abnormality can be detected immediately in the grinding state.

The method for manufacturing the seamless wire mesh whetstone according to claim 6 is the seamless wire mesh whetstone according to any one of claims 1 and 2, wherein the knitting machine for manufacturing the seamless wire mesh cylinder has a copying core placed at the center thereof. , The round base placed on the upper part of the above-mentioned copy core is equipped with a plurality of metal wires wound around a bobbin, and the multiple metal wires provided on the above-mentioned round base are knitted into a pile knitted fabric or other cylindrical shape with the copy core. The outer peripheral surface of the cylinder knitted into a cylindrical shape was formed as a flat surface, and abrasive grains were electrodeposited on the flat outer peripheral surface.
As a result, in particular, the shape of the seamless wire mesh cylinder can be accurately knitted by the copying core, and it can be knitted to any hardness, hard or soft, depending on the knitting method. Furthermore, various metal wires can be selected from stainless steel to non-ferrous metal wires, which can be matched to the characteristics required for grinding, polishing, and honing.

The method for manufacturing a seamless wire mesh grindstone according to claim 7 is the seamless wire mesh grindstone according to any one of claims 1 and 2, wherein the seamless wire mesh cylindrical body is a seamless wire mesh cylindrical body in which one metal wire is knitted by a Lillian type knitting machine. The process of knitting into a single piece or the above-mentioned process of superimposing a plurality of seamless wire mesh cylinders having slightly different outer diameters in a nested manner and press-molding them in the axial direction by arbitrary dimensions to form a disk body. It comprises a step of forming the outer peripheral surface of the disk body into a flat surface and a step of electrodepositing abrasive grains on the flat surface.
Then, instead of the copying core of claim 6, one metal wire is entwined and guided by a group of guide rods arranged in a circumferential shape, and the shape of the seamless wire mesh cylinder is accurately knitted and depends on the knitting method. Then, it is possible to knit to any hardness that is hard and soft. Furthermore, various metal wires from stainless steel to non-ferrous metal can be selected as the wire material, and it can be accurately matched to a large number of characteristics required for grinding, polishing, and honing.

The seamless wire mesh grindstone of claim 8 is the seamless wire mesh grindstone according to any one of claims 1 to 4, wherein the surface of the non-metal wire is metal-coated instead of the metal wire, and the non-metal wire is used. The outer peripheral surface of the cylindrically knitted cylindrical body is formed as a flat surface, and the abrasive grains are electrodeposited on the flat outer peripheral surface. Therefore, not only metal wire but also any non-metal wire can be applied, and it can be applied to the production of seamless wire mesh grindstone having all properties.

The grinding / honing method using the seamless wire mesh cylindrical grindstone of claim 9 receives the pulsating pressure of the coolant liquid in the rubber bag lined over the entire inner diameter of the seamless wire mesh grindstone in the seamless wire mesh grindstone according to any one of claims 1 to 8. The diameter of the seamless wire mesh grindstone is increased when the pulsating pressure is high, and the diameter of the seamless wire mesh grindstone is reduced when the pulsating pressure is low.
As a result, it becomes a seamless wire mesh cylindrical grindstone that can smoothly increase and decrease the diameter efficiently, and even a seamless wire mesh grindstone with low shape rigidity does not distort the shape and seamless wire mesh when expanding with high pulsating pressure. The diameter of the grindstone is increased and the diameter of the seamless wire mesh grindstone is reduced when the pulsating pressure is low. The increase / decrease rate is high, and the entire entire length of the inner surface of the cylinder can be balloon-ground with high efficiency and high accuracy.
In addition, the seamless wire mesh grindstone of the disk body has the same effect and effect, and the contact points where hundreds, thousands, and tens of thousands of woven wires are intertwined absorb external energy by friction and cancel each other out. The seamless wire mesh grindstone of this disk body has overwhelming shock absorption characteristics, and the voids in the grindstone are elastic grindstones that exhibit excellent water permeability and function as chip pockets.

The grinding / honing method using the seamless wire mesh cylindrical grindstone according to claim 10 is the grinding / honing method using the seamless wire mesh grindstone according to claim 9, wherein the coolant liquid is controlled from the coolant supply device by the NC control device and the NC program. The static pressure or pulsating pressure coolant liquid is sent into the shaft core portion supporting the seamless wire mesh cylindrical grindstone from the center through hole drilled in the grindstone mounting spindle, and the coolant liquid is supplied to the rubber bag in the seamless wire mesh grindstone.
However, even with the above-mentioned various seamless wire mesh grindstones having low shape rigidity, the diameter of the seamless wire mesh grindstone is increased when the pulsating pressure is high and the diameter of the seamless wire mesh grindstone is reduced when the pulsating pressure is low, without distorting the shape. Since it can be automatically controlled to an arbitrary increase / decrease rate, it is possible to automatically set the ideal workpiece grinding / polishing / honing accuracy in advance.

A conventional embodiment is shown, and is an enlarged view and a perspective view of a wire mesh body intersection of a hard wire mesh grindstone. The conventional embodiment is shown, and it is the enlarged view and the perspective view of the wire mesh body intersection of the soft wire mesh grindstone. It is a perspective view of the knitting machine which shows 1st Embodiment of this invention and manufactures a seamless wire mesh cylinder. The first embodiment of the present invention is shown, and is a cross-sectional view and a perspective view of the knitting action of a seamless wire mesh cylinder. It is a perspective view of the seamless wire mesh cylinder which shows 1st Embodiment of this invention. It shows the 1st Embodiment of this invention and is the knitting figure of the pile knitted fabric and the flat knitted fabric of the seamless wire mesh cylinder. It is a perspective view which shows the 2nd Embodiment of this invention, and embeds a sensor in a seamless wire mesh cylinder. A second embodiment of the present invention is shown, and is a block diagram of a sensor in a seamless wire mesh cylinder, an external detector, and a wireless transmission means. In the third embodiment of the present invention, it is a knitted fabric map and a perspective view of a wire mesh cylinder. FIG. 3 is a manufacturing process diagram of a seamless wire mesh cylinder made of a knit knitted fabric according to a third embodiment of the present invention. In the fourth embodiment of the present invention, it is a process diagram of a disk-shaped seamless wire mesh grindstone from each seamless wire mesh cylinder. FIG. 5 is an enlarged view of an outer peripheral surface of a seamless wire mesh cylinder and abrasive grain electrodeposition in each embodiment of the present invention. FIG. 5 is a diameter increase / decrease action diagram of a seamless wire mesh grindstone in each embodiment of the present invention. It is a coolant supply system diagram which controls a seamless wire mesh grindstone in each embodiment of this invention. FIG. 5 is a knitting diagram of a seamless wire mesh grindstone by a Lillian knitting machine according to a fifth embodiment of the present invention.

Hereinafter, the configuration and each operation of each seamless wire mesh cylinder of the present invention will be sequentially described with reference to FIGS. 1 to 15.

First, FIG. 3 is a perspective view of a knitting machine for manufacturing the seamless wire mesh cylinder 30 according to the first embodiment of the present invention, FIG. 4 is an operation diagram of the knitting machine, and FIG. 5 is an external view and a view of the seamless wire mesh cylinder 30. 6 is an enlarged view of the three knitted fabrics. The seamless wire mesh grindstone 30 composed of the above is a seamless wire mesh cylinder 30A that can be expanded and contracted by knitting one or a plurality of metal wires 1, 2, ... Into an arbitrary tubular knitted fabric, and the seamless wire mesh cylinder 30A. As shown in FIG. 12, the outer peripheral surface of the wire mesh grindstone 30 is formed by cutting the outer peripheral surface 5 to form a flat surface 6 and electrodepositing abrasive grains G on the flat surface. ..

The seamless wire mesh cylindrical body 30A is produced, for example, by the embodiment of the knitting machine (the configuration of the primitive knitting machine is briefly described) MO shown in FIGS. 3 and 4. The configuration is such that a copy core 34 is arranged in the hole 33A at the center position of the disk 33, and a round base 35 is provided on the tops of the four columns 37 erected on all sides of the disk 33, and each bobbin is provided around this. The metal wires 1, 2 ... Wound around the 36 are pulled out and hooked, and the bobbins are crossed at the top of the copying core 34, and the metal wires 1, 2 ... Are entwined to form a knit (30). At this time, as shown in FIG. 4, the size and shape of the copying core 34 are uniform in the entire circumference without overlapping as shown in FIGS. 4 and 5, and the high-precision seamless wire mesh cylinder 30 is continuously long. Will be generated. Therefore, the length of the seamless wire mesh cylinder 30A is cut to an appropriate length after knitting. Note that FIG. 6A shows a pile knitted fabric and FIG. 6B shows a horizontal knitted fabric, but any other knitted fabric may be used.

Instead of the knitting machine MO, as shown in FIG. 15, the seamless wire mesh cylinder 30A may be generated by the Lillian knitting machine L0. Since the above-mentioned Lillian knitting machine L0 is known as a device for producing knitted products of seamless stockings, its detailed configuration is omitted. This time, it was used to generate a seamless wire mesh cylinder 30A from a metal wire. Depending on the knitting method, whether it is hard or soft is determined by the wire material, and it is possible to select from stainless steel to non-ferrous metal, and it is possible to knit a single or multiple materials into a wire and then knit it into a cylindrical shape. It is a seamless wire mesh whetstone.

In the seamless wire mesh cylindrical body 30A, as shown in FIG. 12, the outer peripheral sides of the metal wires 1, 2 ... Masked in advance are scraped off to form a flat surface portion 6, and the abrasive grains G are electrodeposited therein. Abrasive grains G are electrodeposited on the outer peripheral portion 5 of the seamless wire mesh cylinder 30A to manufacture the seamless wire mesh grindstone 30. The seamless wire mesh grindstone 30 makes the seamless wire mesh cylinder 30A flexible and highly accurate (without scratches) and highly efficient for grinding and honing. As will be described later in FIG. 11, the seamless wire mesh cylinder 30A is a single unit or a plurality of seamless wire mesh cylinders 30A having slightly different outer diameters are superposed and press-molded in the axial direction O by an arbitrary dimension to form a disk body 30B. As shown in FIG. 12, a seamless wire mesh cylindrical body 30 in which abrasive grains G are electrodeposited on the outer peripheral portion 5 may be formed.

However, according to the seamless wire mesh grindstone 30, since the wire mesh wires 1 and 2 ... Are knitted structures that can be expanded and contracted, they are flexible. For example, the processing of the grinding / honing method by the seamless wire mesh grindstone is highly efficient. Therefore, high-precision grinding and honing can be performed.

The seamless wire mesh grindstone 30 will be specifically described with reference to the optimum cylindrical inner surface machining example shown in FIG. The pulsating pressures P1 to P3 of the coolant pump (not shown) are supported by the support cylinder 40 over the entire inner diameter of the seamless wire mesh cylindrical grindstone 30, and the rubber bag (not shown) lined between them supports the coolant pressure from the hole of the support cylinder 40. When the seamless wire mesh grindstone 30 is expanded by receiving pressure, the diameter of the seamless wire mesh grindstone 30 is increased and the diameter is reduced by decompression, and balloon grinding can be performed to grind the entire entire length of the inner surface of the cylinder (not shown) to be a ground object at once. In particular, since the seamless wire mesh grindstone 30 is excellent in elasticity and flexibility in which the outer diameter increases or decreases, the smooth increase or decrease in diameter is repeatedly performed by pulsating pressures P1 to P3 from a coolant pump (shown in FIG. 17). "Grinding", "polishing", and "honing" processing, which cannot be obtained with conventional hard wire mesh grindstones and soft wire mesh grindstones, are made flexible and highly efficient, and high accuracy (without scratches) can be obtained.

In the above-mentioned optimum cylindrical inner surface machining example, in order to carry out the grinding / honing method using the seamless wire mesh grindstone 30, it is controlled by the coolant supply device 50 of FIG. The details of the relationship between the coolant supply device 50, the NC control device 60, and the seamless wire mesh grindstone 30 will be described in detail below.

The coolant supply device 50 includes a two-cylinder plunger pump P (single cylinder AC, BC) that supplies the coolant liquid CK in the tank T by the motor MO of the drive source, and a coolant of pulsating pressure discharged from the plunger pump P. It is provided with check valves V1 to V5 and switching valves V6 and V7 for switching the liquid CK in various ways. By switching the check valves V1 to V5, a path for piping and supplying four types of coolant liquid CK to the seamless wire mesh grindstone 30 is formed. The coolant liquid CK to be discharged is controlled by the NC program PG from the NC controller 60, and includes the pressure P1 of the single cylinder AC, the pressure P2 of the single cylinder BC, the combined pressure (P1 + P2) P3 of both, and the combined pressure. (P1 + P2) P3 is put into the accumulator AQ and can be switched to four types with a constant pressure P0. As described above, the seamless wire mesh grindstone 30 is expanded and contracted by the above four types of pulsating pressure, and the effects of "grinding", "polishing" and "honing" processing that cannot be obtained with the conventional Torinos (wire mesh) grindstones 10 and 20 are obtained. can get. The action is shown in the seamless wire mesh cylindrical grindstone 30 of FIG. That is, the coolant liquid CK is guided from the hole h of the main shaft S to the air ejection holding portion 40 attached to the tip. A seamless wire mesh cylindrical grindstone 30 is fitted on the outer circumference fitted to the air ejection holding portion (support cylinder) 40 via a rubber bag (not shown). That is, the seamless wire mesh grindstone 30 having a rubber bag inside is subjected to hole grinding and honing with high efficiency while increasing or decreasing the diameter by the pulsating air pressure "P1, P2, P3".

A second embodiment of the present invention is the intelligent AI / seamless wire mesh grindstone 31 shown in FIGS. 7 and 8, wherein the thermocouple wire 3 serving as a sensor is mixed in the plurality of metal wires 1, 2, .... It was woven into the knitted fabric to form an intelligent AI / seamless wire mesh cylindrical grindstone 31. Abnormalities such as heat, sound, and vibration of the ground surface in the seamless wire mesh grindstone 31 can be detected. Specifically, in the above abnormality detection, the inside of the seamless wire mesh grindstone is supported by the support cylinder 40, and the rubber bag (not shown) internally attached between them is the hole of the support cylinder 40 (not shown) through the hole h of the spindle S. ) When the pressure of the coolant CK is received and expanded, the intelligent AI / seamless wire mesh grindstone 31 is increased in diameter and reduced in diameter by decompression, and a balloon that grinds the entire entire length of the inner surface of the cylinder (not shown) to be a ground object at once. Grinding can be performed.

The configuration is such that the detection information is transmitted from the wireless transmission means ME provided in the support cylinder 40 to the external detector OE, or is transmitted to the external detector OE via the lead wire L in the grindstone shaft S. It was done. The wireless transmission means M is guided from the thermocouple wire 3 to the central processing unit CPU via the amplifier AMP, and is connected to the external detection unit OE by the transmitter H. The external detection unit OE includes an antenna AT, a central processing unit CPU2, and a determination display H0, and displays normal or alarm. Therefore, the grinding / honing work is efficient, and grinding mistakes (for example, without scratches) can be automatically generated with high accuracy.

An outline of one embodiment of the method for manufacturing the intelligent AI / seamless wire mesh grindstone 31 will be described with reference to FIGS. 3, 4 and 7. A plurality of metal threads 1 and 2 are placed on the thermocouple wire 3 in the copying core 34 placed in the center of the knitting machine M0 for manufacturing the seamless wire mesh grindstone 31 and the round base 35 arranged above the copying core.・ ・ The thermocouple wire 3 is mixed in and knitted into a pile knitted fabric or other cylindrical shape. As shown in FIG. 12, the intelligent AI / seamless wire mesh cylindrical body 31A is formed by scraping the outer peripheral side of the metal wires 1, 2 ... Masked in advance to form a flat surface portion 6, and the abrasive grains G are applied there. The intelligent AI / seamless wire mesh grindstone 31 is generated by electrodepositing the abrasive grains G on the outer peripheral portion 5 of the seamless wire mesh cylindrical body 31.

Subsequently, in the third embodiment of the present invention, in the seamless wire mesh grindstone 32 shown in FIGS. 9 and 10, the conventional vertical and horizontal metal wire 1 and 2 do not fix the woven intersections, and as shown in FIG. A wire mesh plane body 400 knitted in a knit knitting such as a flat knitting (a), a rubber knitting (b), and a pearl knitting (c) is formed by the metal wire 1, and the wire mesh plane body is formed into a pair of uneven surfaces shown in FIG. Press-molded by molds K1 and K2, drawn into a cylindrical shape, and the outer peripheral side of the pre-masked metal wire 1 is scraped off to form a flat surface portion 6, and abrasive grains G are electrodeposited there to form a seamless wire mesh cylindrical body. The seamless wire mesh grindstone 32 is generated by electrodepositing the abrasive grains G on the flat surface portion 6 of the outer peripheral portion 5 of the 32.

The seamless wire mesh grindstone 32 according to the third embodiment applies the pulsating pressure of the coolant liquid to the entire inner diameter of the seamless wire mesh grindstone 32, similarly to the seamless wire mesh grindstones 30 and 31 according to any one of the first and second embodiments. The diameter of the seamless wire mesh grindstone is increased when the pressure is received and the pulsating pressure is high in the rubber bag lined (not shown), and the diameter of the seamless wire mesh grindstone is reduced when the pulsating pressure is low. A grinding / honing method using a grindable seamless wire mesh grindstone is carried out. In particular, since this seamless wire mesh grindstone 32 has high elasticity and flexibility of the entire grindstone, it is a short grindstone, and the corresponding grinding and honing of the workpiece (not shown) has a dramatically excellent effect. Demonstrate.

Subsequently, the seamless wire mesh grindstones 30A, 31A, 32A, which are the stages before the seamless wire mesh grindstones 30, 31, 32 are produced, are pressed into the disk body 30B, which is the fourth embodiment. An embodiment thereof will be described with reference to FIG. First, as shown in FIG. 11A, in each of the seamless wire mesh cylinders 30A, 31A, and 32A, a plurality of seamless wire mesh cylinders having slightly different outer diameters are superposed in a nested manner and in the axial direction O. The disc bodies 30A, 31A, and 32A were press-molded by arbitrary dimensions, and the outer peripheral surface of the disc body was formed as a flat surface, and the abrasive grains G were electrodeposited on the flat surface.

The seamless wire mesh cylinder is a process of knitting one or several metal wires into a seamless wire mesh cylinder by a knitting machine, and the seamless wire mesh cylinder is a single unit or a plurality of seamless wire mesh cylinders having slightly different outer diameters. A step of forming a disk body 30B by pressing and molding an arbitrary dimension in the axial direction O, a step of forming the outer peripheral surface of the disk body into a flat surface, and an electric abrasive grain G on the flat surface. A method for manufacturing a seamless wire mesh cylindrical grindstone consisting of a dressing process and a method of manufacturing is carried out.

A process diagram for specifically producing the seamless wire mesh grindstones 30, 31, and 32 is shown in FIG. 11 (b). First, each seamless wire mesh cylinder 30A (31A, 32A) is placed on the base K6 of the compressor PP, pressed by the pressurizing body K5, and press-molded. After this, the pressurizing body K5 is raised and the disc bodies 30B (31B, 32B) are taken out. The taken-out disk bodies 30B (31B, 32B) are immersed in the electrodeposition liquid J in the electrodeposition tank 70 to generate and manufacture seamless wire mesh grindstones 30, 31, 32 in order to carry out the outer peripheral superabrasive grain electrodeposition. The actual seamless wire mesh grindstones 30, 31 and 32 are shown in photographs.

As a result, the seamless wire mesh grindstone can obtain the same function as the conventional disc grindstone. Moreover, even against the forced pressing force by the seamless wire mesh grindstone against the outer peripheral surface of the work material, the pressing force is alleviated or reduced and eliminated by the flexibility of the entire wire mesh body, and there are no scratches and the polished surface is delicate. High-precision grinding and honing are possible.

However, in the grinding / honing method using the seamless wire mesh cylindrical grindstone, in the seamless wire mesh grindstone described above, the pulsating pressure of the coolant liquid is received by the rubber bag lined on the entire inner diameter of the seamless wire mesh grindstone, and the seamless wire mesh when the pulsating pressure is high expands. The diameter of the grindstone was increased, and the diameter of the seamless wire mesh grindstone was reduced when the pulsating pressure was low. The increase / decrease rate was increased, and the inner surface of the cylinder was increased / decreased in a balloon shape to enable grinding.

As a result, it becomes a seamless wire mesh cylindrical grindstone that can smoothly increase and decrease the diameter efficiently, and even a seamless wire mesh grindstone with low shape rigidity does not distort the shape and seamless wire mesh when expanding with high pulsating pressure. The diameter of the grindstone is increased and the diameter of the seamless wire mesh grindstone is reduced when the pulsating pressure is low. The increase / decrease rate is high, and the entire entire length of the inner surface of the cylinder can be balloon-ground with high efficiency and high accuracy.
In addition, the seamless wire mesh grindstone of the disk body has the same effect and effect, and the contact points where hundreds, thousands, and tens of thousands of woven wires are intertwined absorb external energy by friction and cancel each other out. The seamless wire mesh grindstone of this disk body has overwhelming shock absorption characteristics, and the voids in the grindstone are elastic grindstones that exhibit excellent water permeability and function as chip pockets. In addition, press forming is also possible for mold forming, and when the accuracy is improved by shape grinding and superabrasive electrodeposition is performed, a highly accurate outer shape, flat surface, inner diameter, groove, and shape grindstone are obtained.

Further, the grinding / honing method using the seamless wire net cylindrical grindstone is the above-mentioned grinding / honing method using the seamless wire mesh grindstone. The liquid is sent into the shaft core portion that supports the seamless wire mesh cylindrical grindstone from the center through hole drilled in the grindstone mounting spindle, and the coolant liquid is supplied to the rubber bag in the seamless wire mesh grindstone.

However, even with the above-mentioned various seamless wire mesh grindstones having low shape rigidity, the diameter of the seamless wire mesh grindstone is increased when the pulsating pressure is high and the diameter of the seamless wire mesh grindstone is reduced when the pulsating pressure is low, without distorting the shape. Since it can be automatically controlled to an arbitrary increase / decrease rate, it is possible to automatically set the ideal workpiece grinding / polishing / honing accuracy in advance.

As described above, the actions, effects, and effects of the seamless wire mesh grindstone, its manufacturing method, and grinding / honing method can be summarized as follows. The pulsating pressure of the coolant is applied to the rubber bag lined over the entire inner diameter of the seamless wire mesh grindstone. The diameter of the seamless wire mesh grindstone is increased when the pressure is received and the pulsating pressure is high, and the diameter of the seamless wire mesh grindstone is reduced when the pulsating pressure is low. Even with a low seamless wire mesh grindstone, the diameter of the seamless wire mesh grindstone is increased when the pulsating pressure is high, and the diameter of the seamless wire mesh grindstone is reduced when the pulsating pressure is low, without distorting the shape. Therefore, as described above, many new actions and effects that cannot be realized by the existing grinding wheel can be obtained.

The application of the present invention is not limited to the above-mentioned examples in each of the above-mentioned seamless wire mesh grindstones. Although it has been described exclusively in each use example of grinding, polishing, and honing of the grinding work, it is not limited to the illustrated embodiment, and it is needless to say that it is also applied to various use examples.

1, 2, ... Wire mesh wire 5 Cylindrical outer peripheral surface 6 Flat surface 30, 31, 32 Seamless wire mesh grindstone 30A, 31A, 32A Seamless wire mesh Cylindrical body 30B, 31B, 32B Disk body 33 Disk 33A Hole 34 Core 35 Round base 36 Bobbin 37 Strut 40 Support cylinder (support air ejection holding part)
50 Coolant supply device 60 NC control device 70 Electroplated tank 100 Wire mesh body 400 Wire mesh flat body CX Intersection LO Lillian knitting machine K1, K2 Concavo-convex mold K5, K6 Pressurizer and base PP compressor MO knitting machine OE external detector J Electrodeposition liquid ME wireless transmission means AMP amplifier CPU, CPU2 Central processor AT antenna H0 Judgment display P1 to P3 Pulsating pressure S spindle

Claims (10)

One or a plurality of metal wires are woven into an arbitrary tubular knitted fabric to form a stretchable seamless wire mesh cylinder, and the outer peripheral surface of the seamless wire mesh cylinder is formed as a flat surface and grinded on the flat surface. A seamless wire mesh grindstone characterized by having a structure in which grains are electrodeposited. One or more metal wires are woven into an arbitrary tubular knitted fabric to form a stretchable seamless wire mesh cylinder, and the seamless wire mesh cylinder is a single unit or a plurality of seamless wire mesh cylinders having slightly different outer diameters. It is formed by superimposing them in a nested manner and press-molding them in the axial direction by arbitrary dimensions to form a disk body. The outer peripheral surface of the disk body is formed on a flat surface, and abrasive grains are electrodeposited on the flat surface. The seamless wire mesh cylindrical grindstone according to claim 1, wherein the work is performed. A gold-knitted flat body obtained by knitting one metal wire into flat knitting, rubber knitting, pearl knitting, etc. is pressed into a cylindrical shape with a pair of uneven dies to form a seamless wire mesh cylindrical body, and the above seamless wire mesh cylindrical body is formed. A seamless wire mesh grindstone characterized in that the outer peripheral surface of the wire mesh is formed on a flat surface, and abrasive grains are electrodeposited on the flat surface. A wire-knitted flat body obtained by knitting one metal wire into a flat knitting, rubber knitting, pearl knitting, etc. is pressed into a cylindrical shape with a pair of uneven dies to form a seamless wire mesh cylindrical body. Is a single unit or seamless wire mesh cylinders with slightly different outer diameters are stacked in a nested manner and press-formed by arbitrary dimensions in the axial direction to form a disk body, and the outer peripheral surface of the disk body is formed as a flat surface. The seamless wire mesh cylindrical grindstone according to claim 3, wherein the abrasive grains are electrodeposited on the flat surface. In the seamless wire mesh grindstone according to any one of claims 1 to 4, a sensor such as a thermoelectric pair wire is mixed in the metal wire and woven into the knitted fabric to form a stretchable seamless wire mesh cylindrical body. In order to enable abnormality detection of heat, sound, vibration, etc. of the ground surface of the seamless wire mesh cylindrical body, the abnormality detection is externally detected via a wireless transmission means provided in the seamless wire mesh cylindrical grindstone or a lead wire in the grindstone shaft. A seamless wire mesh whetstone characterized by being configured to be transmitted to a vessel. In the seamless wire mesh grindstone according to any one of claims 1 and 2, the knitting machine for manufacturing the seamless wire mesh cylinder has a copy core placed at the center and a round base arranged above the copy core. It is equipped with a plurality of metal wires wound around a bobbin, and the multiple metal wires provided on the round base are woven into a pile knitted fabric or other cylindrical shape with a core, and the outer peripheral surface of the cylindrical woven cylinder is flat. A method for manufacturing a seamless wire mesh grindstone, which comprises electrodepositing abrasive grains on the flat outer peripheral surface. In the seamless wire mesh grindstone according to any one of claims 1 and 2, the seamless wire mesh cylinder is a step of knitting one metal wire into a seamless wire mesh cylinder by a Lillian type knitting machine, and the seamless wire mesh cylinder is a single unit. Alternatively, a step of superimposing a plurality of seamless wire mesh cylinders having slightly different outer diameters in a nested manner and press-molding them by an arbitrary dimension in the axial direction to form a disk body, and a step of forming the outer peripheral surface of the disk body into a flat surface. A method for manufacturing a seamless wire mesh cylindrical grindstone, which comprises a step of electrodepositing abrasive grains on the flat surface, and a step of electrodepositing the abrasive grains. In the seamless wire mesh grindstone according to any one of claims 1 to 4, the outer circumference of a cylindrical body obtained by forming a substitute wire having a metal coating on the surface of the non-metal wire instead of the metal wire and knitting the non-metal wire into a cylindrical shape. A seamless wire mesh grindstone characterized in that the surface is formed as a flat surface and abrasive grains are electrodeposited on the flat outer peripheral surface. In the seamless wire mesh grindstone according to any one of claims 1 to 8, the pulsating pressure of the coolant liquid is received in a rubber bag lined over the entire inner diameter of the seamless wire mesh grindstone, and the diameter of the seamless wire mesh grindstone is increased when the pulsating pressure is high. A grinding / honing method using a seamless wire mesh grindstone, which is characterized in that the diameter of the seamless wire mesh grindstone is reduced when the pulsating pressure is low, and the inner surface of the cylinder can be increased or decreased in a balloon shape to enable grinding. In the grinding / honing method using the seamless wire mesh grindstone according to claim 9, the coolant is a center in which a static pressure or pulsating pressure coolant liquid controlled by an NC controller and an NC program is applied to the grindstone mounting spindle from the runt supply device. A grinding / honing method using a seamless wire mesh grindstone, characterized in that the coolant is sent from a through hole into a shaft core portion that supports the seamless wire mesh grindstone, and the coolant is supplied to a rubber bag inside the seamless wire mesh grindstone.

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