Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
  • B24B33/00—Honing machines or devices; Accessories therefor
  • B24B33/08—Honing tools
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
  • B24B33/00—Honing machines or devices; Accessories therefor
  • B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
  • B24B33/00—Honing machines or devices; Accessories therefor
  • B24B33/08—Honing tools
  • B24B33/083—Honing tools with different sets of honing stones
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
  • B24B33/00—Honing machines or devices; Accessories therefor
  • B24B33/08—Honing tools
  • B24B33/087—Honing tools provided with measuring equipment

Definitions

• the present invention relates to a honing tool for honing the inner surface of an opening in a workpiece according to the preamble of claim 1 and a method for honing the inner surface of an opening in a workpiece with such a honing tool.
• Honing tool to be moved into the stationary opening or the workpiece with the opening so opposite to the
• a control measurement upstream of the honing is usually carried out. Often at the
• the object of the present invention is to provide a honing tool which is as efficient as possible
• the honing tool according to the invention is formed with a tool body extending in an axial direction, comprising a honing section comprising a group of honing stones, the honing tool comprising a workpiece control element for controlling the size and / or position of the opening formed on the tool body, preferably in the axial direction, opposite to the
• Tool body is movably arranged. It is also conceivable that the workpiece control element in the radial direction relative to the tool body is movably arranged to check when retracting the honing tool into the opening, whether the opening in the workpiece sufficient
• the present workpiece control element does not serve to monitor the honing process but to check whether the workpiece to be machined is correct
• Workpiece control element can be carried out in the course of the retraction process, so that a separate pre-control can be omitted.
• the workpiece control element is thus designed and arranged for a control of
• Workpiece control element of the honing tool with the actual processing process of honing nothing to do. Rather, it allows the workpiece control element to integrate a prior check of the orientation or the bore size of the workpiece in the running-in process of the honing tool. Conventionally, such a check has been made as to whether the workpiece or its bore has a sufficient width and / or is correctly positioned around it
• the honing tool according to the invention is in particular a
• Honing tool for machining an opening in a gear
• the workpiece control element can in particular serve to ensure that the opening in the workpiece has a sufficient opening width, for example that in
• the Workpiece control element serve a
• the opening in the workpiece does not have a sufficient opening width, damage to the honing tool may occur when retracting conventional honing tools. For this reason, the opening width is usually checked at a previous workstation to a desired size. Due to the movable mounting of the workpiece control element, the honing tool in the
• Honing meant a relative movement between the honing tool and the workpiece, wherein the honing tool and / or the workpiece can be moved.
• the honing process includes a superposition of translational and
• the workpiece control element is coupled to a detection device, wherein the
• Detecting device is designed to detect a movement of the workpiece control element relative to the tool body.
• the detection device is coupled to a control device such that the
• Control device interrupts the retraction of the honing tool in the opening, when the detecting device is a movement of the workpiece control element relative to the
• the workpiece control element when the workpiece control element is mounted resiliently mounted on the tool body. This is the workpiece control element always clamped in a designated position and provides a certain resistance to movement.
• the resilient mounting can be realized by mechanical springs, preferably metallic springs. Mechanical springs can be formed, for example, as spiral or leaf springs. It is also conceivable that the workpiece control element via a
• elastic polymer material is resiliently mounted. Also conceivable is a pneumatic or hydraulic suspension of the workpiece control element. It is also conceivable one
• Tool body is arranged that the
• Workpiece control element is moved from the initial position when the workpiece control element, in particular during a retraction of the honing tool in the opening of the workpiece, comes into contact with the workpiece. If the workpiece control element is moved from the starting position, this can be detected and the running-in process of the honing tool into the workpiece can be stopped. Damage to the workpiece or honing tool is thus reliably avoided.
• the workpiece control element is a
• Tool body seen from along the axial direction in extended in a radial direction. A corresponding
• Workpiece control element can be virtually run with its "tip" in the workpiece and the contact portion contacts the edge of the opening, if the opening width is less than a nominal size.
• the workpiece control element is ring-shaped, it is preferable to surround it
• Tool body extends around. This will be a
• the previously described contact portion extends around the honing tool, wherein the contact portion in the circumferential direction may have local interruptions.
• Interruptions can serve to form a passage for cooling lubricant, so that it can not accumulate above the workpiece control element during honing.
• the workpiece control element can also be cone or
• the workpiece control element in the form of a spherical section. Preferably, this has
• a workpiece control element is arranged on the workpiece side end of the tool body or forms the in axial Direction seen the workpiece furthest facing part of the honing tool.
• Opening width of the opening to be machined, is safely excluded.
• a second honing tool a second
• Honing section which is a second group of honing stones
• Honabites which is a third group of honing stones
• first honing portion and the second honing portion are spaced apart from the third honing portion on the tool body in the axial direction.
• This can be another with the same honing tool Honing operation can be performed without the honing tool would have to be extended out of the opening or a
• the first honing section is arranged in the axial direction between the workpiece control element and the second honing section.
• the first honing section is designed to carry out a pre-honing operation
• the second honing section is designed to carry out a finish honing operation.
• the workpiece control element is coupled to a pneumatic or hydraulic actuator such that the pneumatic or hydraulic actuator changes a flow area of a pneumatic or hydraulic control medium channel when the workpiece control element is moved from the home position.
• the control medium channel can be acted upon with compressed air.
• the actuator is preferably rod-like and formed with the workpiece control element
• the adjusting element is arranged such that it is in the range of Crossing of the control medium channel extends when the
• Workpiece control element or the actuator is moved from its initial position.
• the actuator interrupts the crossing of the control medium channel when the workpiece control element or the actuating element is moved from its initial position.
• the honing tool is at least one
• Air measuring nozzle comprises, seen in the axial direction offset from the honing stones, in particular of a
• Honabites includes, which is arranged in the axial direction next to the honing stones of the respective Honabitess.
• an air measuring nozzle in the sense of the present application may mean at least two nozzles communicating fluidly with each other, which are preferably located opposite each other in the circumferential direction.
• behind the honing stones is meant an arrangement in which the corresponding air-measuring nozzle is located behind the honing stones, as seen from the workpiece-side end of the honing tool.
• Such an air measuring nozzle is particularly suitable for the downstream measurement of the result a honing process.
• Such an air measuring nozzle is also referred to as an air measuring nozzle for remeasuring.
• viewed in the axial direction next to the honing stones is meant an arrangement of the corresponding air-measuring nozzle, in which the air-measuring nozzle, viewed in the axial direction, is located within the axial extent of the honing stones.
• Such an air measuring nozzle is in
• Such an air-measuring nozzle is particularly suitable for measuring the result of a honing process.
• Such an air-measuring nozzle is also referred to as an air-measuring nozzle for in-process measurement, wherein it can also be used for checking the result of a honing operation.
• the air measuring nozzle for remeasuring preferably extends further outward in the radial direction than an air measuring nozzle for in-process measurement.
• the nozzle cross sections of the air measuring nozzles are also smaller than the nozzle cross sections of the air measuring nozzles for measuring in-process for measuring. As a result, a higher accuracy can be achieved during the remeasurement.
• the adjusting element is arranged such that, when the workpiece control element or the
• Adjusting element is moved from its initial position, a connection between an air measuring nozzle and a part of a measuring air duct separates.
• the separate from the measuring air duct air measuring nozzle an air measuring nozzle for resizing or for in-process measuring with appropriate arrangement relative to the honing stones.
• the rod-like actuator should be designed so long that after the interruption of the control medium channel still sufficient additional travel to the
• the honing portion is at least a sixth, preferably a quarter, of its axial extent far from the workpiece control element
• Coupled workpiece control element is a pneumatic actuator and the control medium channel whose
• a measuring air duct is pneumatically connected to a measuring air duct, via the at least one air measuring nozzle, preferably a plurality
• Air measuring nozzles can be acted upon with measuring air.
• the construction of the honing tool according to the invention is particularly simple, since few channels of compressed air in the
• Honing tool need.
• the honing tool comprises a delivery device, via which the respective honing stones of the two honing sections are independent or always
• the honing tool in particular the adjusting device can be made simpler and more robust.
• An adjuster can be, for example, a piezo-based actuator for the honing stones, which is particularly suitable when the
• Honancen single undeliverable should be.
• the adjusting device per honing section has a feed cone which is designed to cooperate with wedge surfaces of the honing stones in order to convert an axial movement of a feed element into a radial feed of the honing stones, preferably wherein the
• the honing tool can be constructed in a particularly simple manner and therefore produced inexpensively.
• the honing tool comprises a brush section.
• the opening after honing can still be smoothed and / or deburred via the brush section.
• the honing sections and the air metering nozzle (s) are located between the brush section and the workpiece-side end, as seen in the axial direction
• Tool body arranged.
• a tool guide on the honing tool is arranged.
• Such a tool guide is
• Such an embodiment of the honing tool is usually with a floating or
• Tool guide is formed, and a guide bush, which is adapted to receive the tool guide.
• a honing machine has a
• Part of the invention is also a method for
• a honing tool according to one or more of the above-described embodiments, the method comprising, in sequence, the steps of: a) axially retracting the honing tool into the opening and pre-checking the size and / or position of the opening in the workpiece by means of the workpiece control element; b) honing the opening with the honing stones of the honing section, preferably measuring the opening width over a
• Air measuring nozzle Preferably c) axial process of the honing tool, in particular further axial retraction of the honing tool in the opening, and remeasuring the opening width via an air measuring nozzle, which is spaced from the honing section of step b) in the axial direction; Preferably d) axial movement of the honing tool, in particular further axial retraction of the honing tool into the opening, and subsequent honing of the opening with the honing stones of the second honing section, preferably measuring the opening width via an air measuring nozzle, viewed in the axial direction next to the honing stones of the second
• Honing section is arranged; Preferably e) remeasuring the opening width via an air measuring nozzle, which is arranged in the axial direction next to the honing stones of the second Honabitess from step d), or axial honing process, in particular further axial retraction of the honing tool into the opening, and remeasuring the opening width over a Air measuring nozzle, which is spaced from the second Honabêt from step d) in the axial direction; preferably f) axial movement of the honing tool, in particular further axial retraction of the honing tool into the opening, and subsequent brushing of the opening with the brush portion of the honing tool; g) axial extension of the honing tool from the opening.
• Figure 1 is a side view of an inventive
• FIG. 1 is a sectional view of the honing tool
• FIG. 1 A first figure.
• Figure 3 is a sectional view of the honing tool
• FIG. 1 in a further sectional plane
• Figure 4 is a sectional view of the honing tool of Figure 1 in a further sectional plane
• Figure 5 is a sectional view of the honing tool
• FIG. 1 in a further sectional plane
• Figure 6 is a sectional view of another
• Figure 7 is a sketch of a sequence of the invention
• FIG. 8 shows a sketch of an alternative sequence of the
• FIG. 9 shows a sketch of an alternative sequence of the
• Figure 1 shows an inventive honing tool 10 for honing the inner surface 12 of an opening 14 in one
• the honing tool 10 has a
• Tool body 17 which extends in an axial direction A from a workpiece-side end 18 to a
• the honing tool 10 has a Coupling section 22 and a feed pin 24 protrudes from the honing tool.
• the adjacent to the coupling portion 22 includes the
• Honing tool 10 a connection portion 25.
• the honing tool 10 comprises a first port 26 for measuring air and a second
• Connection 28 for measuring air is also in the area of
• Terminal portion 25 are terminals 30 for
• Embodiment a workpiece control member 34, a first honing portion 36, a second honing portion 38 and a
• Brush section 40 is arranged. In the functional section
• Tool guide 50 to the workpiece-side end 18 of the honing tool 10.
• the tool guide 50 is formed to cooperate with a guide bush and the
• the first honing section 36 has a group of first honing stones 52.
• the second honing section 38 has a group of second honing stones 54.
• Honabexcellent 36 can with honing stones 52, the
• the second honing section 38 can with
• Honing stones 54 which carry out a
• Finished honing are designed to be provided.
• the first honing section 36 is spaced in the axial direction A from the second honing section 38 on the first honing section
• Tool body 17 is arranged.
• the workpiece control element 34 is opposite to the
• Tool body 17 movably arranged.
• the workpiece control element 34 is resiliently mounted on the
• Tool body 17 is arranged. This is the
• Workpiece control element 34 present over several
• the workpiece control element 34 is biased into an initial position AS, which in the present case corresponds to the position shown in FIG.
• the bias is realized in this example via the coil springs 56.
• the workpiece control element 34 is on the
• Workpiece control element 34 is moved from the initial position AS when the workpiece control element 34 in
• the workpiece control element 34 has a
• Contact portion 58 for contacting the workpiece 16 on. As seen from the workpiece-side end 18 of the tool body 17 along the axial direction, the contact portion 58 widens in a radial direction R.
• the workpiece control element 34 is present in the form of a ring and extends around the tool body 17.
• Figure 2 shows a sectional view through the honing tool 10 along the line II-II. In the sectional plane of Figure 2, the course of a first measuring air channel 60 can be seen.
• the measuring air channel 60 connects the first connection 26 for measuring air with the second air measuring nozzles 48 of FIG.
• Figure 3 also shows a sectional view through the honing tool 10 along the line II-II. However, the sectional plane of Figure 3 is offset from that of Figure 2 in a circumferential direction U. In the sectional plane of Figure 3, the course of a second measuring air channel 62 can be seen. The measuring air channel 62 connects the second port 28 for Measuring air with the first air measuring nozzles 44 of the in-process measuring arrangement 42nd
• the workpiece control element 34 is coupled to a pneumatic actuator 64 or more such actuators 64 such that the pneumatic actuator 64 changes a flow cross-section of a pneumatic control medium channel 66 when the workpiece control element is moved from the initial position AS.
• the control medium channel 66 is formed by a part of the measuring air channel 62.
• Control element 64 is rod-like and protrudes in the areas of a T-junction 68 of the measuring air channel 62 into it. If the workpiece control element 34 is displaced in the direction of the workpiece-facing end 20 of the tool body 17, then the actuator 64 moves in the area of the T-junction 68 such that the T-junction 68 is closed. This closure of the T-junction 68 is via a pressure transducer, not shown
• Control medium channel 66 which is variable by the actuator 64 in its flow cross-section.
• Figure 4 also shows a sectional view through the honing tool 10 along the line II-II. However, the sectional plane of Figure 4 is offset from those of Figure 2 and 3 in the circumferential direction U. In the sectional plane of Figure 4, the course of a cooling lubricant channel 70 can be seen.
• the cooling lubricant channel 70 connects the Connections 30 for cooling lubricant with outlets 72 for cooling lubricant, wherein the outlets 72 are each arranged in the region of honing sections 36 and 38.
• Figure 5 also shows a sectional view through the honing tool 10 along the line II-II. However, the sectional plane of Figure 5 is offset from those of Figure 2, 3 and 4 in the circumferential direction U.
• the honing tool 10 comprises an adjusting device 74, via which the respective honing stones 52, 54 of the two honing sections 36 and 38 can always be delivered simultaneously in the radial direction R.
• the adjusting device 74 has a feed element 75, which has a first feed cone 76 and a second feed cone 76
• Zustellkonus 78 wherein the first feed cone 76 is assigned to the honing stones 52 of the first Honabitess 36 and the second Zustellkonus 78 the honing stones 54 of the second Honabitess 38th
• the respective Zustellkonen 76 and 78 are formed to cooperate with wedge surfaces 80 and 82 of the honing stones 52 and 54, respectively, to implement an axial movement of the Zustellelements 75 in a radial delivery of the honing stones 52 and 54 respectively.
• the delivery cones 76 and 78 of both honing sections 36 and 38 are arranged on the single feed element 75 such that upon movement of the
• Zustellelements 75 both Zustellkonen 76 and 78 are moved.
• the movement of the delivery element 75 can be controlled via an actuation of the delivery pin 24.
• a guide pin At the the lower end of the Zustellelements is presently a guide pin, which leads the feed element in a stable coaxial position in the interior of the tool body.
• FIG. 6 shows a sectional view through a
• FIG. 6 differs from the embodiment of FIGS. 1-5 in that in the second honing section 38 another in-process
• Measuring arrangement 84 is arranged with a corresponding Lucasmessdüse 86. In the embodiment of Figure 6 no Nachmessan extract 46 is provided for this purpose. However, an additional measuring arrangement 46 may be provided in addition to the further in-process measuring arrangement 84.
• Inner surface 12 of an opening 14 in a workpiece 16 with a honing tool 10 according to the invention for example, the honing tool 10 of Figure 1 (used in the method of Figures 7 and 8) or Figure 6 (used in the
• workpiece 16 is a toothed wheel.
• the method comprises the following steps in succession:
• the workpiece control element 34 moves into the opening 14, if the opening 14 a
• Workpiece control element 34 is coupled to the actuating elements 64 such that the actuating elements 64 the
• Control medium channel 66 change when the
• Workpiece control element 34 is moved from the initial position AS, close the adjusting elements 64, the T-junctions 68 and thus change the flow cross-section of the control medium channel 66.
• Double arrow and a curved arrow Double arrow and a curved arrow.
• Step b) (during or after honing) is optionally possible a measurement of the opening width of the opening 14 via an air measuring nozzle 44, which is arranged in the axial direction A next to the honing stones 52 of the first Honabitess 36, the in-process measuring arrangement 42nd
• the method comprises a step c):
• the method comprises a step d):
• the method comprises a step e):
• the method comprises a step f):
• the workpiece 16 is stationary and the honing tool 10 is compared to the

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Geometry (AREA)
• Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
• Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

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• 2017
  • 2017-07-27 DE DE102017117069.3A patent/DE102017117069B4/de active Active
• 2018
  • 2018-07-27 JP JP2020503793A patent/JP7136883B2/ja active Active
  • 2018-07-27 WO PCT/EP2018/070371 patent/WO2019020779A1/de active Search and Examination
  • 2018-07-27 CN CN201880047876.8A patent/CN110944795B/zh active Active
  • 2018-07-27 US US16/633,044 patent/US20200206865A1/en active Pending
  • 2018-07-27 EP EP18746922.6A patent/EP3658330B1/de active Active
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