Honing tools and honing wheels

Abstract

The honing tool (100) comprises a tool body (110) which is at least partially tubular, has a cutting area continuous from the inside to the outside of the tool body and has at least one honing stone receiving opening for receiving a honing stone (200), the dimensions of the honing stone receiving opening and the honing stone (200) being corresponding to each other, the honing stone (200) being movable in the radial direction of the tool body and being received in the circumferential direction between a plurality of limiting surfaces (140-1, 140-2) of the honing stone receiving opening substantially without play. The honing tool comprises a honing stone holding system, which is configured such that the honing stone (200) is held in the honing stone receiving opening by the honing stone holding system. To this end, the honing stone (200) has at least one through hole (250-2) in a guide provided for cooperating with the honing stone receiving opening. The honing stone holding system has a holder (320-2) arranged in the through hole and having at least one elastically deformable holding element, and when the honing stone (200) is assembled, the holder (320-2) engages with two opposing limiting surfaces (140-1, 140-2) of the honing stone accommodating opening by a pressure force generated by compression of the holding element, and the honing stone (200) is held in the honing stone accommodating opening by the honing stone holding system.

Description

Technical Field

[0001] The present invention relates to a honing tool as described in the preamble of claim 1 and a honing stone that can be used for manufacturing such a honing tool as described in the preamble of claim 10.

Background Art

[0002] Honing is a machining method using a geometrically undefined cutting edge, in which a honing tool performs a cutting motion consisting of two elemental motions inside the hole to be machined, and there is a constant surface contact between the cutting material elements of one or more cutting edges of the honing tool and the inner surface of the hole to be machined. The kinematics of an expandable honing tool is characterized by the superposition of a rotational motion, a generally reciprocating oscillatory motion extending in the axial direction of the hole, and an adaptive motion that causes a change in the effective diameter of the honing tool. A surface structure with cross-intersecting machining marks is formed on the inner surface of the hole. The surface finally machined by honing satisfies high requirements regarding dimensional and shape tolerances, so many sliding surfaces that are subject to high loads in engines or engine components, such as cylinder moving surfaces in an engine block or inner surfaces of holes in the housing of an injection pump, are machined by honing.

[0003] Particularly, when machining holes having a relatively small diameter, for example, in a diameter range of 15 mm or less, a honing tool having at least a partially tubular tool body is used. The tool body has a cutting region that continues from the inside to the outside of the tool body and has a honing stone accommodation opening for accommodating a honing stone. The tool body is used as a housing for one or more honing stones and at the same time as a guide for a feed rod used for radially adjusting the honing stone. The honing tool has a device for removably fixing the honing tool to the spindle of a honing machine.

[0004] The dimensions of a typical rectangular honing wheel housing opening and the corresponding cross-sectional dimensions of the honing wheel are adjusted to each other such that the honing wheel is movable radially within the tool body and, circumferentially, accommodated between the multiple limiting surfaces of the honing wheel housing opening with substantially no play. Generally, a slip fit is achieved by precisely machining the multiple limiting surfaces of the honing wheel housing opening and the corresponding sides of the honing wheel, so that the honing wheel can be inserted into the honing wheel housing opening by hand and is held there by friction between the sides of the honing wheel and the adjacent multiple limiting surfaces of the honing wheel housing opening.

[0005] The inner surface of the honing wheel that protrudes into the tool body typically has a bevel, which cooperates with a corresponding bevel at the end of the feed rod in a wedge-driven manner, such that the axial sliding movement of the feed rod towards the end of the tool body furthest from the spindle results in radial sliding movement of the honing wheel outward.

[0006] In particular, after a relatively long period of use, the honing wheel may fall out of its housing opening when the honing tool is withdrawn from the machined hole. If the spindle is still rotating at a relatively high speed after the wheel falls out, the honing wheel may, in some cases, be scattered from the housing opening by centrifugal force. Various honing wheel holding systems have been developed to prevent the honing wheel from falling out or being scattered.

[0007] In many cases, a so-called grinding wheel retaining bush is used. It is a substantially sleeve-shaped component that is guided to slide above the cutting area on the tool body and, based on its own weight, slides together with the honing wheel across the cutting area when the honing tool is withdrawn from the hole.

[0008] Other examples of solutions that can function as honing wheel holding systems are described, for example, in Patent Documents 1, 2, 3, 4, and 5.

[0009] Patent Document 6 describes a honing tool having a honing wheel holding system, the system having an elastically compressible holding element, the holding element being fixed to and assembled with the honing wheel. In the embodiment, an elongated piece made of silicone tubing is used as the holding element, the piece is inserted into an elongated groove milled into the side surface of the honing wheel, and when the honing wheel is assembled, it is supported by a pressure force on one side against the grooved side of the honing wheel and on the other side against the limiting surface of the honing wheel housing opening opposite that side. The pressure force is generated by the compression of the holding element. The honing wheel is held in place by friction coupling within the honing wheel housing opening. This solution is functionally reliable, relatively simple in terms of structure and handling, and has so far become established in the market, particularly based on these advantages. [Prior art documents] [Patent Documents]

[0010] [Patent Document 1] German Utility Model No. 29616300 Specification [Patent Document 2] U.S. Patent No. 2952952 [Patent Document 3] U.S. Patent No. 3037333 [Patent Document 4] U.S. Patent No. 3810333 [Patent Document 5] U.S. Patent No. 4471576 [Patent Document 6] European Patent Application Publication No. 2364813 [Overview of the project] [Problems that the invention aims to solve]

[0011] The object of the present invention is to provide a honing tool of the type having a honing wheel holding system that functions reliably, the system can be formed by relatively simple structural means, and is characterized by easy handling when manufactured and used. [Means for solving the problem]

[0012] To solve this problem, the present invention provides a honing tool having the features of claim 1 and a honing wheel having the features of claim 10. Preferred developments are described in the dependent claims. The language of all claims is provided by reference to the specification.

[0013] The honing tool of the claimed invention has at least a partially tubular tool body, the tool body having a cutting region having at least one honing wheel housing opening, the honing wheel housing opening extending from the inside to the outside of the tool body and used to house individual honing wheels. The dimensions of the honing wheel housing opening and the honing wheel are adjusted relative to each other in the circumferential and preferably axial direction, such that the honing wheel is radially movable within the tool body and accommodates substantially without play between a plurality of limiting surfaces of the honing wheel housing opening in the circumferential direction. By being radially movable, the honing wheel is radially adjustable via cooperating inclined surfaces by an adjustment element that is axially slidable within the tool body when the adjustment element slides axially. The honing tool has a honing wheel holding system, which has at least one elastically compressible holding element, and when the honing wheel is assembled, the pressure force generated by the compression of the holding element acts on the limiting surface of the honing wheel housing opening in the following manner, namely, so that the honing wheel is held within the honing wheel housing opening by the honing wheel holding system.

[0014] The honing tool according to the claimed invention is characterized in that the honing wheel has a through hole connecting one side of the guide to the other, within a guide portion provided for cooperation with the honing wheel housing opening, and the honing wheel holding system has a holder disposed within the through hole, the holder having at least one elastically deformable holding element. When the honing wheel is assembled, the holder engages with two opposing limiting surfaces of the honing wheel housing opening by a pressure force generated by the compression of the holding element, so that the honing wheel is held or held within the honing wheel housing opening by the honing wheel holding system.

[0015] In this configuration, the holder positioned within the through-hole is biased on both sides of the honing wheel and presses against the opposing limiting surfaces of the honing wheel housing opening, thus creating a frictional connection (force-fitting connection) between the holder and the honing wheel housing opening. Simultaneously, by positioning the holder within the through-hole, a shape-fitting connection is formed between the holder and the honing wheel, which acts perpendicular to the axial direction of the through-hole. Due to the shape-fitting connection between the honing wheel and the holder, and simultaneously with the frictional connection between the holder and the tool body, the honing wheel is secured not to fall out of the honing wheel housing opening and will not be lost unless a force capable of overcoming the frictional connection between the holder and the honing wheel housing opening is applied to the honing wheel.

[0016] These advantages can be achieved through relatively simple design and structural measures. The through-holes can be realized, for example, by a continuous cylindrical through-hole passing through a guide section, which is much easier to realize from a manufacturing perspective than a milled receiving groove, for example, provided in the prior art European Patent Application Publication No. 2364813(A2). Furthermore, a number of retaining possibilities are provided.

[0017] Preferably, the honing wheel has a width (measured between its sides) within the region of the through hole, and the holder has a length greater than this width when no compressive external force is present, so that the holder can be inserted into the through hole as follows: i.e., when introduced and relaxed, it can protrude beyond the sides of the honing wheel at both ends of the through hole. When the honing wheel is inserted into the honing wheel housing opening, the length of the holder, measured longitudinally in the through hole, decreases, and the compressive force presses the holder against the limiting surfaces of the honing wheel housing opening on both sides.

[0018] According to the development, the holder has at least one elastically deformable retaining element, which, when relaxed or without force, has an outer diameter larger than the inner diameter of the through hole, thereby allowing the retaining element to be introduced into the through hole through elastic deformation and the resulting decrease in its diameter, and in the introduced state, is held in place by frictional coupling so as not to be lost into the through hole. "Not lost" specifically means that the retaining element does not fall out of the through hole without any intervention, for example, due to gravity. This simple fixing capability, which does not require tools, makes the assembly and handling of the honing wheel configured in this way easy when transporting it, when incorporating it into the tool body, or when removing it.

[0019] Elastically deformable retaining elements that can be inserted into through-holes by changing their shape and automatically stay in place can be made of, for example, elastomer or rubber material. Here, elastomer refers to a rigid yet elastically deformable plastic, such as those used for sealing elements. Since this type of retaining element is commercially available in many dimensions and shapes, they can sometimes be used as retaining elements without modification. Many suitable elastomer materials will permanently withstand all the coolants and lubricants present in honing under normal operating conditions, so the function of the honing wheel retaining system will be reliably maintained even after considerable use.

[0020] In a particularly preferred embodiment, the retainer has at least one retaining element in the form of a sphere made of an elastically deformable material. In the unloaded (uncompressed) state, a sphere having an outer diameter slightly larger than the diameter of the through-hole is slightly deformed, pressed into the through-hole relatively easily, and automatically stays there, stretching slightly in the longitudinal direction of the through-hole. Since the sphere does not require preferential orientation for incorporation, it is also easy to handle.

[0021] In many embodiments, the retainer has exactly one sphere made of an elastically deformable material. This sphere preferably has a diameter slightly larger than the inner diameter of the through-hole in the relaxed state, so that the sphere can be lightly compressed and introduced into the through-hole and automatically stays there.

[0022] Using a single sphere made of an elastically deformable material as the retainer is particularly effective when the honing stone has a width smaller than the diameter of the sphere in the region of the through-hole, so that the sphere can project beyond the side surfaces of the honing stone at both ends of the through-hole in the inserted state and can be inserted into the through-hole. In the state where the honing stone is inserted, the sphere is in direct frictional contact with the opposing limiting surfaces of the honing stone receiving opening. Thus, a particularly reliable frictional contact with respect to the honing stone receiving opening is formed, because a planar contact occurs and the coefficient of friction between the elastomeric material and the metallic material of the tool body is relatively large in general.

[0023] It is also possible to construct a multi-component retainer using at least one sphere made of an elastically deformable material and at least one other component. For example, an elastically deformable sphere can be combined with a hard support element formed, for example, from metal, so that the sphere is supported on a plurality of limiting surfaces of the honing stone receiving opening on one side of the honing stone and the support element is supported on the other side of the honing stone.

[0024] However, a preferred embodiment of the retainer consists of only one or more spheres. That is, for example, it may be effective to design the through-hole such that its length in the width direction (between the sides of the guide portion) is much greater than its diameter. The dimensions can be adjusted relative to each other so that the retainer has multiple spheres made of an elastically deformable material, in particular exactly two spheres, which are inserted into the through-hole in a single row. The diameters of the spheres can be slightly larger than the inner diameter of the through-hole so that the spheres remain in the through-hole easily. The sum of the diameters of the spheres is made slightly larger than the length of the through-hole in the width direction so that the last sphere or the outermost sphere can protrude slightly from the through-hole on each side. In many embodiments, the retainer consists of exactly two identical spheres made of an elastically deformable material.

[0025] Alternatively, the retainer may have a coil compression spring, for example, made of spring steel, used as a retaining element, the coil compression spring being compressible in its longitudinal direction (direction of the spring axis), and being able to be inserted into the through-hole substantially parallel to the longitudinal axis of the through-hole in its longitudinal direction, and preferably having support elements made of, for example, elastomer material or other plastic at one or both ends, which are supported in the assembled state by a plurality of limiting surfaces of the honing wheel housing opening.

[0026] In some cases, a honing wheel may suffice if it has only one through-hole with a properly incorporated holder. In many embodiments, multiple through-holes, such as two, three, four, or five, are provided, distributed along the length of the honing wheel. These through-holes may have the same or different diameters. A holder can be placed in each of the many through-holes. It is not necessary to place a holder in every through-hole, but it is common to place one in each through-hole. The number and design of the through-holes and the built-in holders allow for optimal adjustment of the holding force and its spatial distribution to meet requirements.

[0027] Other advantages and perspectives of the invention are evident from the claims and the following description of embodiments of the invention, which are described below with reference to the figures. [Brief explanation of the drawing]

[0028] [Figure 1] Figure 1 shows a longitudinal cross-section of a honing tool according to an embodiment. [Figure 2] Figure 2 shows a perspective view of the honing process shown in Figure 1. [Figure 3] Figure 3 shows a perspective view of the honing wheel of the honing tool shown in Figure 1. [Figure 4A] Figure 4A shows a cross-section of a honing tool oriented perpendicular to the tool axis within the region of a single through-hole. [Figure 4B] Figure 4B shows a cross-section of the honing tool oriented perpendicular to the tool axis within the region of another through-hole. [Figure 4C] Figure 4C shows a cross-section of the honing tool oriented perpendicular to the tool axis within the region of yet another through-hole. [Modes for carrying out the invention]

[0029] Figure 1 shows an embodiment of the honing tool 100 in a longitudinal section parallel to the tool axis (rotation axis) 102 of the honing tool. Figure 2 shows a perspective view of the honing tool shown in Figure 1. Figure 3 shows a perspective view of the honing wheel of the honing tool shown in Figure 1.

[0030] The honing tool is configured as a single grinding wheel type honing tool and therefore has a single radially adjustable honing wheel 200 within its cutting area. The honing tool has a tool body 110, which generally has the shape of an open tube with relatively large wall thickness, and the outer diameter of the tube is partially changed in the axial direction.

[0031] The end of the tool body, shown on the right in Figure 1, is used to connect the honing tool 100 to the spindle of a machine tool, particularly a honing machine. Within the free end of the tool body on the opposite side is the cutting area of ​​the honing tool, which is introduced into the hole to be honed. The tool body has a rectangular honing wheel housing opening 140 within the cutting area, extending from the inside to the outside of the tool body. When the honing tool is assembled, the honing wheel 200 is housed in this opening with a precise fit. The axial length of the honing wheel housing opening is several times its width as measured in the circumferential direction.

[0032] The honing wheel housing opening 140 is defined by four flat restricting surfaces that are paired and parallel to each other. Two flat restricting surfaces acting circumferentially are provided parallel to the axial direction, namely the first restricting surface 140-1 and the second restricting surface 140-2 which is parallel to it. When the honing tool rotates in the rotational direction DR (see Figure 4A), the first restricting surface 140-1 takes the lead and is referred to as the front restricting surface. The front and rear restricting surfaces are each flat and extend parallel to the plane formed by the tool axis 102 and the radial direction extending through the center between the lateral restricting surfaces 140-1 and 140-2. In the axial direction, the honing wheel housing opening is defined by the upper restricting surface and the lower restricting surface, which are each located in the plane normal to the tool axis 102.

[0033] On the side facing the honing wheel housing opening 140, the tool is fitted with guide elements 180-1 and 180-2 made of hard metal, sintered metal, or other hard material, such as ceramic, displaced approximately 90° circumferentially relative to each other. These are supported by the inner wall of the hole to be honed, with their smoothly polished, curved outer surfaces. These guide elements may support a layer made of, for example, diamond, which forms a wear-resistant outer surface.

[0034] The honing wheel 200 is plate-shaped overall and has a plate-shaped support element 210 made of steel, which is often also called a support strip. A grinding layer 220 is included on the radially outer side of the support element, and the grinding layer contains bonded grinding material particles. In some embodiments, the grinding layer 220 is sintered directly onto the flat outer surface of the support element, but in other embodiments, it may be attached to the support element by bonding, soldering, riveting, or screws. A flat bottom supporting the grinding layer may also be provided between the grinding layer and the support element.

[0035] A flat inclined surface 212 is formed radially inward of the support element 210, and this inclined surface cooperates with a corresponding flat inclined surface provided at the lower end of the feed rod 130 guided within the tool body in the form of a wedge drive, such that when the feed rod 130 is pressed in the direction of the cutting area of ​​the honing tool by a delivery drive housed within the honing machine, the honing wheel 200 is pressed radially outward within the honing wheel housing opening 140.

[0036] The portion of the honing wheel, when assembled, is located between the lateral limiting surfaces 140-1 and 140-2 of the honing wheel housing opening 140, contacts the limiting surfaces across the cutting area, and is guided by these limiting surfaces when moving radially; this portion is referred to as the guide portion 215. The guide portion 215 includes a part of the support element 210 and a relatively small portion of the cutting layer supported by it, and therefore protrudes into the honing wheel housing opening 140 to a predetermined depth.

[0037] The dimensions of the honing wheel 200 and the honing wheel housing opening 140 are adjusted so that the honing wheel is movable radially within the tool body, but is accommodated circumferentially between the lateral limiting surfaces 140-1 and 140-2 with virtually no play. In the axial direction, i.e., between the upper and lower limiting surfaces, a small amount of play may exist, but here again, a fit with as little play as possible is provided.

[0038] When forming the honing wheel and tool body, care is taken to ensure that the inner spacing between the front and rear limiting surfaces 140-1 and 140-2 of the honing wheel housing opening is only slightly greater than the width BH of the honing wheel, measured between the front side surface 212-1 and the rear side surface 212-2 of the honing wheel or support element. In most preferred cases, a relatively firm slip fit is achieved, so that the honing wheel is manually pressed into the honing wheel housing opening from the outside during assembly, but cannot fall out of the honing wheel housing opening on its own. However, the honing wheel slides radially outward under the action of the feed rod 130 which is pressed downward.

[0039] The honing tool is equipped with a honing wheel holding system 300, which provides additional fixation to prevent the inserted honing wheel from unintentionally falling out of the honing wheel housing opening. All components of the honing wheel holding system are formed on or fixed to the honing wheel. For example, the honing wheel holding system 300 has three through holes 250-1, 250-2, and 250-3, which are formed in the vicinity of the cutting layer within the area of ​​the guide portion 215 of the honing wheel in the support element 210. These through holes pass through the support element 210 in a direction (width direction) that extends tangentially from side 212-1 to the opposite side 212-2 (when assembled).

[0040] Figures 4A–4C show the honing tool 100 in cross-sections oriented perpendicular to the tool axis 102 within the regions of three through-holes along the cutting lines A, B, and C of Figure 1. The two through-holes 250-1 and 250-2, furthest from the spindle, have identical diameters DB1 and DB2, respectively, while the third through-hole 250-3, located in a relatively narrow region of the support element, has a relatively smaller diameter DB3, approximately half the size.

[0041] Within each of the through holes 250-x, a holder for the honing wheel holding system is positioned. In the area of ​​the larger diameter hole, the holders 320-1 and 320-2 consist of a single sphere made of an elastically compressible elastomer material, which is permanently resistant to the cooling lubricant used in the honing process. In the area of ​​the third hole, the holder 320-3 consists of two identical elastically compressible spheres having a smaller diameter.

[0042] The diameters of these spheres are sized to be slightly larger than the inner diameters DB1, DB2, and DB3 in each case when the spheres are not compressed, so that they are automatically held within the through-hole 250-x when pressed in. Furthermore, in the two larger through-holes, the diameters of the holes and the spheres held within them are designed so that the diameter of the sphere to be inserted is several percent larger than the width BH of the honing wheel, so that when the sphere is inserted centrally within the two side regions, it protrudes outward beyond the sides by only a few percent of the hole length, for example, between 5% and 10% (see Figure 4A).

[0043] As a result, when the honing wheel 200 with the ball inserted is introduced into the honing wheel housing opening 140, the ball is slightly compressed in the width direction of the through-hole so that it can be introduced into the honing wheel housing opening. This creates a relatively large pressing surface, as can be clearly seen in Figure 4B, within which the compressed elastomer material of the ball makes direct contact with the front and rear limiting surfaces of the honing wheel housing opening 140. This ensures a secure frictional coupling between the retainer formed by the ball and the honing wheel housing opening or the tool body. At the same time, the honing wheel 200 is held radially by the clamped ball by shape coupling to prevent it from falling out. Thus, the ball acting as a retaining element is supported by two opposing surfaces of the honing wheel housing opening and is trapped within the honing wheel 200 by shape coupling without play and under bias.

[0044] In the third through-hole 250-3, its diameter DB3 is much smaller than its length in the width direction (see Figure 4C). Here, the dimensions are such that the holder 250-3 is defined by two spheres of the same size, and their outer diameters are slightly larger than the inner diameter DB3 of the through-hole when relaxed. Furthermore, since the sum of the diameters is slightly larger than the width of the honing wheel within the area of ​​the through-hole, the spheres protrude slightly beyond the sides when relaxed and are pressed slightly inward when slid into the honing wheel housing opening, so that the spheres are elastically deformed and the restoring force presses the spheres against the limiting surfaces on both sides of the honing wheel housing mechanism.

[0045] Therefore, in the solution described here as an example, one or more elastically compressible spheres or similar objects are inserted into one or more through-holes in the honing wheel so as not to be lost. The sphere(s) acting as retainers are supported by two opposing limiting surfaces of the honing wheel housing opening and are positioned within the honing wheel without play and under bias by shape coupling.

[0046] The installation of one or more balls can be done in the manufacturer's factory before shipping the honing wheel to the customer, as the balls are held in place within the honing wheel to prevent them from being lost due to biasing forces. This eliminates the need for customer-side installation of the retaining elements. Preserving the assembled honing wheel to prevent corrosion can be done, including the installed balls, as the ball material is resistant to swelling and decomposition by many chemicals.

[0047] It is possible to modify existing honing wheels with a conventional structure to honing wheels according to the present invention without significant technical effort. This is because it simply requires forming through holes (one or more) in the support and press-fitting appropriate spheres into these through holes. The holding force is adjusted by increasing or decreasing the number of effective spheres. Because the spheres are located tangentially to the honing wheel groove (honing wheel housing opening) within the tool, assembly can be done without tools, and the end customer can assemble the honing wheel without any problems. The inserted spheres can be polished precisely. Thus, the desired diameter can be obtained precisely with a tolerance of a few hundredths of a millimeter. In many cases, commercially available elastomer spheres, such as those used in pneumatic check valves, can be used. The spheres can be formed from, for example, classic sealing materials, from, for example, nitrile-butadiene-rubber (NBR, also sold under the Perbunan trademark), or from appropriate fluoroelastomers, such as those sold under the Viton trademark. These materials, in the inventor's experience, are permanently resistant to the cooling lubricants used in the honing area.

[0048] Correct changes or adjustments to the biasing force can be made, for example, by selecting the material of the balls (e.g., by selecting balls of various hardnesses), by selecting the tolerance range for the diameter of the ball housing opening, and / or by selecting the number of balls. The following are some embodiments (configurations) of the present invention. [Aspect 1] Honing tool (100), A tool body (110) which is at least partially tubular and includes a cutting region that is continuous from the inside to the outside of the tool body and has at least one honing wheel housing opening (140) for housing a honing wheel (200), The dimensions of the honing wheel housing opening (140) and the honing wheel (200) are corresponding to each other, and the honing wheel (200) is movable radially of the tool body and is housed substantially without play between the multiple limiting surfaces (140-1, 140-2) of the honing wheel housing opening (140) in the circumferential direction, the tool body (110) and A honing wheel holding system (300) having at least one elastically compressible holding element, and in a state in which the honing wheel (200) is incorporated, the pressing force generated by the compression of the holding element engages with the limiting surface of the honing wheel housing opening (140) so that the honing wheel (200) is held within the honing wheel housing opening (140) by the honing wheel holding system (300), In a honing tool (100) equipped with, The honing wheel (200) has at least one through hole (250-1, 250-2, 250-3) in a guide portion (215) provided to cooperate with the honing wheel housing opening (140), and the honing wheel holding system (300) comprises a holder (320-1, 320-2, 320-3) disposed within the through hole and having at least one elastically deformable holding element. A honing tool (100) characterized in that, when the honing wheel (200) is assembled, the holders (320-1, 320-2, 320-3) engage with two mutually opposing limiting surfaces (140-1, 140-2) of the honing wheel housing opening (140) by the pressure force generated by the compression of the holding elements, and the honing wheel is held within the honing wheel housing opening (140) by the honing wheel holding system (300). [Aspect 2] The honing tool (100) according to Embodiment 1, characterized in that the honing wheel (200) has a width (BH) within the region of the through holes (250-1, 250-2, 250-3), the holders (320-1, 320-2, 320-3) have a length greater than the width when no external compressive force is present, and the holders (320-1, 320-2, 320-3) are insertable into the through holes, and when introduced and relaxed, protrude beyond the sides (212-1, 212-2) of the honing wheel at two ends of the through holes. [Aspect 3] The honing tool (100) according to embodiment 1 or 2, wherein the retainer (320-1, 320-2, 320-3) has at least one elastically deformable retaining element, and in a relaxed state, the retaining element has an outer diameter larger than the inner diameter of the through hole (250-1, 250-2, 250-3), is elastically deformable and can be introduced into the through hole, and in the introduced state, is automatically trapped and held in the through hole by frictional engagement. [Aspect 4] A honing tool (100) according to any one of embodiments 1 to 3, characterized in that the holder (320-1, 320-2, 320-3) has at least one elastically deformable retaining element in the form of a sphere made of an elastically deformable material. [Aspect 5] The honing tool (100) according to embodiment 4, characterized in that the holder (320-1, 320-2, 320-3) is composed of only one or more spheres made of an elastically deformable material. [Aspect 6] The honing tool (100) according to any one of embodiments 1 to 5, characterized in that the holder comprises exactly one sphere (320-1, 320-2) made of an elastically deformable material, preferably having a diameter larger than the inner diameters (DB1, DB2) of the through holes (250-1, 250-2) when relaxed. [Aspect 7] The honing tool (100) according to embodiment 6, characterized in that the honing wheel (200) has a width (BH) smaller than the diameter of the spheres (320-1, 320-2) within the region of the through hole, and the spheres (320-1, 320-2) are insertable such that, when introduced into the through hole (250-1, 250-2), they protrude beyond the sides (212-1, 212-2) of the honing wheel at both ends of the through hole. [Aspect 8] A honing tool (100) according to any one of embodiments 1 to 5, characterized in that the through hole (250-3) has a length in the width direction greater than its inner diameter, the holder (320-3) comprises a plurality of spheres made of an elastically deformable material, in particular two spheres of exactly the same size, the plurality of spheres are inserted into the through hole in a row, preferably the diameter of the plurality of spheres is greater than the inner diameter of the through hole (250-3), the plurality of spheres are held in the through hole, the sum of the diameters of the plurality of spheres is greater than the length of the through hole in the width direction, and the spheres located outside the row protrude slightly from the through hole on each side. [Aspect 9] The honing wheel (200) has a plurality of through holes (250-1, 250-2, 250-3), in particular two or three through holes distributed over the length of the honing wheel, A honing tool (100) according to any one of embodiments 1 to 8, characterized in that each retainer (320-1, 320-2, 320-3) is positioned in a plurality of through holes, particularly in all of the through holes. [Aspect 10] A honing wheel (200) for use within a honing tool (100) equipped with a tool body (110), The tool body (110) is at least partially tubular and comprises a cutting region that is continuous from the inside to the outside of the tool body and has at least one honing wheel housing opening (140) for housing a honing wheel (200). The dimensions of the honing wheel (200) and the dimensions of the honing wheel housing opening (140) are corresponding to each other, the honing wheel (200) is movable radially to the tool body, and in the circumferential direction it can be accommodated between the multiple limiting surfaces (140-1, 140-2) of the honing wheel housing opening with substantially no play. In a honing wheel (200), The honing wheel (200) has at least one through hole (250-1, 250-2, 250-3) for housing a holder (320-1, 320-2, 320-3) having at least one elastically deformable holding element within a guide portion (215) provided to cooperate with the honing wheel housing opening (140) in order to constitute a honing wheel holding system (300), The honing wheel (200) is characterized in that the holders (320-1, 320-2, 320-3) are configured to engage with two mutually opposing limiting surfaces (140-14, 140-2) of the honing wheel housing opening (140) by a pressure force generated by the compression of the holding elements when the honing wheel (200) is assembled, and the honing wheel is held within the honing wheel housing opening (140) by the honing wheel holding system (300). [Aspect 11] The honing wheel (200) according to embodiment 10 is characterized in that the honing wheel is assembled for mounting by inserting holders (320-1, 320-2, 320-3) into the through holes (250-1, 250-2, 250-3). [Aspect 12] One of the following features, Mode, (i) The honing wheel (200) has a width (BH) within the region of the through holes (250-1, 250-2, 250-3), and the holders (320-1, 320-2, 320-3) have a length greater than the width when no external compressive force is present, and the holders are insertable or inserted into the through holes, and in a relaxed state, protrude beyond the sides (212-1, 212-2) of the honing wheel at the two ends of the through holes. (ii) The holder (320-1, 320-2, 320-3) comprises at least one elastically deformable retaining element in the form of a sphere made of an elastically deformable material, (iii) The holder (320-1, 320-2, 320-3) consists of only one or more spheres made of an elastically deformable material, (iv) The holder consists of exactly one sphere (320-1, 320-2) made of an elastically deformable material, preferably the sphere having a diameter larger than the inner diameter (DB1, DB2) of the through hole (250-1, 250-2I) when relaxed. (v) The honing wheel (200) has a plurality of through holes (250-1, 250-2, 250-3), in particular two or three through holes distributed over the length of the honing wheel. A honing wheel (200) according to embodiment 10 or 11, characterized in that...

Claims

1. A honing tool (100), A tool body (110) which is at least partially tubular and includes a cutting region that is continuous from the inside to the outside of the tool body and has at least one honing wheel housing opening (140) for housing a honing wheel (200), The dimensions of the honing wheel housing opening (140) and the honing wheel (200) are corresponding to each other, and the honing wheel (200) is movable in the radial direction of the tool body and is housed without play in the circumferential direction between the multiple limiting surfaces (140-1, 140-2) of the honing wheel housing opening (140) of the tool body (110), A honing wheel holding system (300) comprising: having at least one elastically compressible holding element, and, when the honing wheel (200) is assembled, engaging with the limiting surface of the honing wheel housing opening (140) by the pressure force generated by the compression of the holding element, such that the honing wheel (200) is held within the honing wheel housing opening (140) by the honing wheel holding system (300); The honing wheel (200) has at least one through hole (250-1, 250-2, 250-3) in a guide portion (215) provided to cooperate with the honing wheel housing opening (140), and the honing wheel holding system (300) comprises a holder (320-1, 320-2, 320-3) disposed in the through hole and having at least one elastically deformable holding element. In a honing tool (100), the holders (320-1, 320-2, 320-3) engage with two mutually opposing restricting surfaces (140-1, 140-2) of the honing wheel housing opening (140) by the pressure force generated by the compression of the holding elements when the honing wheel (200) is assembled, and the honing wheel is held within the honing wheel housing opening (140) by the honing wheel holding system (300), The holder (320-1, 320-2, 320-3) has at least one elastically deformable retaining element in the form of a sphere made of an elastically deformable material. A honing tool (100) characterized by the following features.

2. The honing tool (100) according to claim 1, characterized in that the honing wheel (200) has a width (BH) within the region of the through holes (250-1, 250-2, 250-3), the holders (320-1, 320-2, 320-3) have a length greater than the width when no external compressive force is present, and the holders (320-1, 320-2, 320-3) are insertable into the through holes, and when introduced and relaxed, they protrude beyond the sides (212-1, 212-2) of the honing wheel at two ends of the through holes.

3. The honing tool (100) according to claim 1 or 2, wherein the retainer (320-1, 320-2, 320-3) has at least one elastically deformable retaining element, and in a relaxed state, the retaining element has an outer diameter larger than the inner diameter of the through hole (250-1, 250-2, 250-3), is elastically deformable and can be introduced into the through hole, and in the introduced state, is automatically trapped and held in the through hole by frictional engagement.

4. The honing tool (100) according to any one of claims 1 to 3, characterized in that the holder (320-1, 320-2, 320-3) is composed of only one or more spheres made of an elastically deformable material.

5. The honing tool (100) according to any one of claims 1 to 4, characterized in that the holder comprises exactly one sphere (320-1, 320-2) made of an elastically deformable material, and the sphere, in a relaxed state, has a diameter larger than the inner diameters (DB1, DB2) of the through holes (250-1, 250-2).

6. The honing tool (100) according to claim 5, characterized in that the honing wheel (200) has a width (BH) smaller than the diameter of the spheres (320-1, 320-2) within the region of the through hole, and the spheres (320-1, 320-2) are insertable such that, when introduced into the through hole (250-1, 250-2), they protrude beyond the sides (212-1, 212-2) of the honing wheel at both ends of the through hole.

7. The honing tool (100) according to any one of claims 1 to 4, characterized in that the through hole (250-3) has a length in the width direction greater than its inner diameter, the holder (320-3) comprises a plurality of spheres made of an elastically deformable material, the plurality of spheres are inserted into the through hole in a row, the diameter of the plurality of spheres is greater than the inner diameter of the through hole (250-3), the plurality of spheres are held in the through hole, the sum of the diameters of the plurality of spheres is greater than the length of the through hole in the width direction, and the spheres located outside the row protrude slightly from the through hole on each side.

8. The honing wheel (200) has a plurality of through holes (250-1, 250-2, 250-3) distributed over the length of the honing wheel, The honing tool (100) according to any one of claims 1 to 7, characterized in that each retainer (320-1, 320-2, 320-3) is arranged in a plurality of through holes.

9. A honing wheel (200) for use within a honing tool (100) which includes a tool body (110), The tool body (110) is at least partially tubular and comprises a cutting region that is continuous from the inside to the outside of the tool body and has at least one honing wheel housing opening (140) for housing a honing wheel (200). The dimensions of the honing wheel (200) and the dimensions of the honing wheel housing opening (140) are corresponding to each other, the honing wheel (200) is movable in the radial direction of the tool body, and in the circumferential direction it can be housed without play between the multiple limiting surfaces (140-1, 140-2) of the honing wheel housing opening. The honing wheel (200) has at least one through hole (250-1, 250-2, 250-3) for housing a holder (320-1, 320-2, 320-3) having at least one elastically deformable holding element within a guide portion (215) provided to cooperate with the honing wheel housing opening (140) in order to constitute a honing wheel holding system (300), The holders (320-1, 320-2, 320-3) are configured to engage with two opposing limiting surfaces (140-14, 140-2) of the honing wheel housing opening (140) by the pressure force generated by the compression of the holding elements when the honing wheel (200) is assembled, and the honing wheel is held within the honing wheel housing opening (140) by the honing wheel holding system (300). In the honing wheel (200), the holder (320-1, 320-2, 320-3) is inserted into the through holes (250-1, 250-2, 250-3) to assemble the honing wheel for mounting, The holder (320-1, 320-2, 320-3) has at least one elastically deformable retaining element in the form of a sphere made of an elastically deformable material. A honing wheel (200) characterized by the following features.

10. One of the following features, Mode, (i) The honing wheel (200) has a width (BH) within the region of the through holes (250-1, 250-2, 250-3), and the holders (320-1, 320-2, 320-3) have a length greater than the width when no external compressive force is present, and the holders are insertable or inserted into the through holes, and in a relaxed state, they protrude beyond the sides (212-1, 212-2) of the honing wheel at the two ends of the through holes. (ii) The holder (320-1, 320-2, 320-3) consists of only one or more spheres made of an elastically deformable material, (iii) The holder consists of exactly one sphere (320-1, 320-2) made of an elastically deformable material, the sphere having a diameter larger than the inner diameter (DB1, DB2) of the through hole (250-1, 250-2I) when relaxed, (iv) The honing wheel (200) has a plurality of through holes (250-1, 250-2, 250-3) distributed over the length of the honing wheel, The honing wheel (200) according to claim 9, characterized in that it is a honing wheel (200).

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