WO2024156559A1 - Dispositif de mesure de la course réelle d'un jeu de dents interne d'un composant, en particulier d'un arbre, et procédé de nettoyage d'un composant, en particulier d'un jeu de dents interne du composant - Google Patents

Dispositif de mesure de la course réelle d'un jeu de dents interne d'un composant, en particulier d'un arbre, et procédé de nettoyage d'un composant, en particulier d'un jeu de dents interne du composant Download PDF

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Publication number
WO2024156559A1
WO2024156559A1 PCT/EP2024/051002 EP2024051002W WO2024156559A1 WO 2024156559 A1 WO2024156559 A1 WO 2024156559A1 EP 2024051002 W EP2024051002 W EP 2024051002W WO 2024156559 A1 WO2024156559 A1 WO 2024156559A1
Authority
WO
WIPO (PCT)
Prior art keywords
spindle
air
pick
gauge gear
air outlet
Prior art date
Application number
PCT/EP2024/051002
Other languages
German (de)
English (en)
Inventor
Gernot Voß
Original Assignee
Thyssenkrupp Dynamic Components Gmbh
Thyssenkrupp Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from LU103062A external-priority patent/LU103062B1/de
Priority claimed from DE102023101784.5A external-priority patent/DE102023101784A1/de
Application filed by Thyssenkrupp Dynamic Components Gmbh, Thyssenkrupp Ag filed Critical Thyssenkrupp Dynamic Components Gmbh
Publication of WO2024156559A1 publication Critical patent/WO2024156559A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/02—Gearings; Transmission mechanisms
    • G01M13/021—Gearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/14—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of a driving or driven pulley
    • F16H7/16—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of a driving or driven pulley without adjusting the driving or driven shaft
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
    • G01B5/0004—Supports
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
    • G01B5/202—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures of gears

Definitions

  • Device for measuring the concentricity of an internal toothing of a component in particular a shaft, and method for cleaning a component, in particular an internal toothing of the component
  • the present invention relates to a device for measuring the concentricity of an internal toothing of a component, in particular a shaft, according to the preamble of claim 1, and to a method for cleaning a component, in particular an internal toothing of the component, using a device according to the invention according to the preamble of claim 13.
  • a device of the aforementioned type is known, for example, from DE 10 2017 215 285 Al.
  • the aforementioned device for concentricity measurement setup essentially consists of a high-precision pick-up spindle with a gauge gear, which are attached to a rocker.
  • the joint of the rocker is formed by a spring joint, which is very rigid and allows almost only movements in the desired plane. It is also conceivable for the rocker to be mounted on a precisely mounted axis of rotation.
  • the measuring force for the measurement is applied by the spring joint, a spring, or a pneumatic cylinder.
  • At the other end of the rocker there is a pneumatic cylinder and a measuring sensor.
  • the pneumatic cylinder should enable the axial insertion of the gauge gear. The cylinder is controlled and the rocker is deflected.
  • the force of the pneumatic cylinder is slightly greater than the force of the spring joint and thus the pick-up spindle with the gauge gear is lifted off. The entire unit is then inserted into the hole with the internal gearing. The cylinder is now vented and due to the force of the spring joint, the gauge gear engages in the gearing. After a complete rotation of the component, it is now possible to determine a concentricity error using the measured values of the encoder.
  • the metrological references for the concentricity measurement must be created mechanically using roller prisms or electronically using encoders.
  • this object is achieved by a device for concentricity measurement with the characterizing features of claim 1. Because the device for concentricity measurement is equipped with a compressed air cleaning device, the problems outlined above can be solved or at least reduced. In particular, the "pseudo rejects" can be reduced.
  • the compressed air cleaning device is preferably an integral part of the device.
  • the tooth flanks of the internal gearing of a component to be measured can be in particular a shaft indirectly, in particular by redirecting, deflecting the air flow and/or nozzle flow, via the gauge gear using compressed air.
  • the supply of compressed air is preferably carried out via a spindle unit which is at least partially hollow and on which the gauge gear is arranged.
  • the spindle unit can comprise, for example, a pick-up spindle and a delivery spindle.
  • the supply of compressed air can take place via the spindle unit, in particular from the outside directly into the pick-up spindle or from the outside into the delivery spindle then through the pick-up spindle.
  • the compressed air can be introduced axially or radially into the spindle unit.
  • an air guide channel and an air outlet channel are installed in the spindle unit, in particular in the pick-up spindle. This enables air to be supplied through the pick-up spindle into the gauge gear, so that several or only individual tooth segments can be supplied with compressed air.
  • the air guide channel is preferably designed as a central through-hole in the pick-up spindle.
  • the air outlet and the air guide channel are preferably designed in such a way that the use of oiled compressed air is possible, which also allows lubrication of the gauge gear at the same time.
  • an improvement in the repeatability of the concentricity measurement can also be expected, as an air bearing is formed between the pick-up spindle and the gauge gear.
  • oiled compressed air should be used to enable lubrication of the gauge gear on the shaft journal.
  • the pick-up spindle is equipped with a pin for rotatably or permanently receiving the gauge gear and/or the pick-up spindle is designed for rotatably or permanently receiving the gauge gear.
  • the pin forms a bearing seat for the gauge gear.
  • a bearing seat is formed between the bore of the gauge gear and the journal.
  • a fixed connection is formed between the journal and gauge gear.
  • the gauge gear can also be mounted directly on the pick-up spindle, either rotatable or fixed.
  • the compressed air cleaning device comprises an air duct in the device, in particular in the pick-up spindle, the delivery spindle and/or the gauge gear.
  • the air duct basically serves to transport the compressed air or oiled compressed air to the location to be cleaned.
  • the air duct thus forms an integral part of the device, in particular the pick-up spindle or the pick-up spindle and delivery spindle.
  • the air duct extends in particular "through" the spindle into the gauge gear, i.e. in particular through the pick-up spindle, take-up spindle and/or gauge gear.
  • the compressed air cleaning device in particular its air guide, comprises at least one air guide channel arranged in the pick-up spindle, an air outlet channel arranged in the pick-up spindle, an air outlet channel arranged in the gauge gear and/or an air outlet arranged in the gauge gear.
  • the air guide can comprise various components which are integrated into individual components of the device, such as the pick-up spindle and/or the gauge gear.
  • one or more air ducts are provided within the pick-up spindle, and/or the air duct or ducts are aligned straight or obliquely in relation to the spindle unit's longitudinal axis, and/or the air duct or ducts are equipped with a constant cross-section over the length, conical or with steps.
  • the flow behavior of the medium flowing through can be influenced by the design of the air duct or ducts. In this case, nozzle effects can be achieved, for example.
  • the compressed air can also be divided between several air ducts.
  • one or more air outlet channels are provided in the tap spindle, in particular in the pin of the Pick-off spindle, and/or the air outlet duct or ducts are aligned radially or obliquely with respect to the spindle unit longitudinal axis.
  • a channel for the root circuit supply or a channel for the tip circuit supply can also be provided. Furthermore, a selective supply of compressed air can be provided, especially if more than one air duct has been installed in the spindle unit. This allows a root and/or tip circuit supply to be subjected to different pressures.
  • a circumferential or at least partially circumferential groove can be provided in the pin, with the air outlet channel(s) opening into the groove.
  • the groove can serve to better distribute compressed air to the respective air outlet channels of the gauge gear.
  • air outlet channels are arranged in the gauge gear, wherein the air outlet channels extend from the bore in the direction of the tooth tips, tooth flanks and/or tooth roots of the gauge gear.
  • the air outlet channels transport the compressed air in the direction of the preferred locations of the toothing of the gauge gear. Depending on which components of the toothing of the gauge gear the air outlet is to be provided.
  • the air outlets are arranged at the end of the air outlet channels in the tooth tips, tooth flanks and/or tooth roots of the gauge gear. This allows the compressed air to be directed to those areas of the internal toothing of the component which have a high degree of contamination due to the previous machining process or where the contamination would significantly influence the actual measurement. This can vary depending on the type of previous machining.
  • the compressed air cleaning device in particular the air guide, in particular the gauge gear
  • the compressed air cleaning device is designed in such a way that only the tooth gaps of the gauge gear are subjected to compressed air which are shortly before contact and/or in contact with the internal toothing to be measured.
  • This measure results in particularly good Cleaning results.
  • this measure can essentially be achieved by appropriately aligning the air outlet duct with regard to the expected position of contact or shortly before contact with the internal gear to be measured.
  • the air outlets on the gauge gear are designed as circular air outlets, elliptical air outlets, in particular narrowing air outlets, or rectangular air outlets. These measures can also influence the flow behavior on the area to be cleaned.
  • the gauge gear comprises a circumferential or at least partially circumferential groove in the joining area to the pin. This allows a better compressed air distribution to be achieved.
  • a further object of the present invention is to propose an advantageous method for cleaning an internal gear with a device according to the invention for measuring concentricity.
  • the method proposed for this purpose includes the step of cleaning, in particular blowing out, the internal gearing using the compressed air cleaning device. It is clear that the cleaning can take place almost simultaneously with the measurement. At least the step of cleaning outside the actual measuring device can therefore be omitted. The actual cleaning, which precedes the measurement, should nevertheless be retained. However, the integrated compressed air cleaning device can remove any remaining particles and thus minimize pseudo-rejects. It is clear that this saves time and money, as well as avoiding measurement errors.
  • the cleaning of the component takes place during the measurement, in particular directly after the gearing process.
  • the cleaning is carried out using compressed air or oiled compressed air, in particular that the internal gearing is blown out using compressed air or oiled compressed air. Contamination can be cleaned or blown away using compressed air. Oiled compressed air can also be used to wet surfaces with lubricant and lubricate them accordingly.
  • Fig. 1 shows a side sectional view of an embodiment of an exemplary device for concentricity measurement according to the prior art with a gauge gear in the rest position;
  • Fig. 2 shows a perspective view of the embodiment of a device shown in Fig. 1;
  • Fig. 3 is a side sectional view of the embodiment of a device for measuring concentricity shown in Figures 1 and 2 with a gauge gear in the retracted position;
  • Fig. 4 shows a perspective view of the embodiment of a device shown in Fig. 3;
  • Fig. 5 is a side sectional view of the embodiment of a device for concentricity measurement shown in Figures 1 to 4 with a gauge gear in the engagement position;
  • Fig. 6 is a side sectional view of the embodiment of a device for concentricity measurement shown in Figures 1 to 5 with a gauge gear in the retracted position
  • Fig. 7 is a side sectional view of the embodiment of a device for concentricity measurement shown in Figures 1 to 6 with a gauge gear in the engagement position;
  • Fig. 8 shows an embodiment of a pick-up spindle, a gauge gear and a pressure cleaning device of a device according to the invention for concentricity measurement
  • Fig. 9-17 further embodiments of a pick-up spindle, a gauge gear and a pressure cleaning device of a device according to the invention for concentricity measurement;
  • Fig. 18 (a-c) an embodiment of a gauge gear for a device according to the invention for concentricity measurement in different views;
  • Fig. 19 (a-c) another embodiment of a gauge gear for a device according to the invention for concentricity measurement in different views;
  • Fig. 20 (a-c) another embodiment of a gauge gear for a device according to the invention for concentricity measurement in different views;
  • Fig. 21 (a-c) another embodiment of a gauge gear for a device according to the invention for concentricity measurement in different views;
  • Fig. 22 an embodiment of a device for concentricity measurement in a side sectional view
  • Fig. 22a is a section through an embodiment of a pick-up spindle of a device for concentricity measurement
  • Fig. 22b is a section through another embodiment of a pick-up spindle of a device for concentricity measurement
  • Fig. 23 shows a further embodiment of a gauge gear for a device according to the invention for measuring concentricity
  • Fig. 24 shows an embodiment of a device for measuring concentricity in a side sectional view.
  • Figures 1 to 7 show an exemplary embodiment of a device 1 for measuring the concentricity of an internal toothing 22 of a component 20, such as a shaft shown here.
  • the device 1 shown and described in Figures 1 to 7 for measuring the concentricity of an internal toothing 22 of a component 20 is a device according to the prior art, in particular according to DE 10 2017 215 285 A1.
  • the device 1 comprises a detection segment 2 and a component receiving segment 3.
  • the detection segment 2 has a spindle unit 4, which comprises a pick-up spindle 5 and a delivery spindle 6.
  • the pick-up spindle 5 is arranged or accommodated in the spindle holder 7, in particular in the spindle holder support 8, so as to be rotatable about the spindle unit longitudinal axis 30.
  • the spindle holder support 8 comprises a bearing element, such as a plain bearing, a roller bearing or a steady rest (not shown here).
  • the pick-up spindle 5 it is also possible for the pick-up spindle 5 to be at least partially rotatable, as shown in Figures 1, 3, 5, 6 and
  • the spindle holder support 8 is advantageously designed in the geometric shape of a cuboid, but can also have a cylindrical shape. Relevant for the spindle holder support
  • the bearing element for supporting the rotatable pick-up spindle 5 is advantageously arranged in a section of such a hole, in particular the through hole or through recess or in one of the recesses.
  • the delivery spindle 6 is advantageously connected to the spindle support 8 in a torsionally rigid manner.
  • the delivery spindle 6 is advantageously clamped or pressed into the spindle support 8, in particular into a recess provided for this purpose, or connected to the spindle support 8 in another non-positive, positive or materially bonded manner.
  • a gauge gear 13 is arranged at a distal end or an axial end of the pick-up spindle 5.
  • the Gauge gear 13 can also be referred to as a reference gear. This axial end is opposite the axial end of the pick-up spindle 5, with which it is connected to the spindle holder support 8.
  • the gauge gear 13 was advantageously pressed onto the pick-up spindle 5. However, it is also conceivable that the gauge gear 13 is connected to the pick-up spindle 5 in another form-fitting, force-fitting or even material-fitting manner. With a pressed-on gauge gear, however, no air bearing is then formed between the bearing pin and the gauge gear.
  • the spindle holder support 8 is connected to the spindle holder foot 9 of the spindle holder 7.
  • the spindle holder foot 9 has, for example, intersecting sheet metal cuts 10, in particular two intersecting sheet metal cuts
  • the spindle mounting base 9 can also be designed as sheet metal sections or support rods arranged in a parallelogram.
  • one of the sheet metal sections 10 for example the first sheet metal section 10.1, extends through an opening (not shown here) of the other, in particular the second sheet metal section 10.2.
  • at least one of the sheet metal sections 10, particularly advantageously the first sheet metal section 10.1 and advantageously also both sheet metal sections 10, are elastically springy sheet metal sections 10, which are made for example from spring steel.
  • the sheet metal sections 10 each extend in a plane which fans out on the one hand orthogonally to the spindle unit longitudinal axis 30 and on the other hand in a vertical direction.
  • the sheet metal cuts 10 themselves run vertically at a defined angle in this plane.
  • support rods 11 are arranged in each level, of a total of at least two levels, whereby only one of the levels is visible here.
  • the support rods 11.1 and 11.2 per level cross at a coupling point or pivot point 18.
  • the support rods 10 extend obliquely vertically at a defined angle between the spindle support support 8 and a base element, such as a slide 12 shown in Figures 1 to 7.
  • both support rods 11.1 and 11.2 have a spring joint to enable elastic bending or deformation of the support rods 11 and consequently deflection of the spindle unit 4 about a rotation axis 19 that essentially continuously adjusts to the movement of the device 1.
  • the bearing in the pivot point 18 can also be described as a rocker bearing or bearing on two individual spring-loaded balls. This can in particular ensure a certain freedom of play.
  • a joint is provided in the pivot point 18. is designed around which at least an upper V-shaped part of the support rods 11 can be rotated or tilted.
  • a lower part of the support rods 11 is also designed as an inverted V, so that the two support rod sections meet at the pivot point 18.
  • the rotation axis 19 is designed as a rigid, i.e. immovable, rotation axis. A highly precise, play-free bearing of the rotation axis can be made possible.
  • the entire spindle holder 7 is also displaced. This displacement enables an adjustment or setting of the desired or required axis of rotation 19 (as shown in Fig. 1) of the spindle unit 4 during its deflection.
  • the deflection or deflection of the delivery spindle 6 can also advantageously be set or adjusted by moving the carriage 12.
  • the carriage 12 advantageously runs in linear rails (not shown here), which also extend along the spindle unit longitudinal axis 30.
  • the detection segment 2 has an adjustment element 14 and a measuring unit 15, each of which is operatively connected to the delivery spindle 6.
  • the adjustment element 14 is, for example, a cylinder, such as a pneumatic pressure cylinder, or an electric actuator, such as a crank drive, worm spindle or loaded worm drive, and serves to move a deflection of the spindle unit 4 and consequently of the gauge gear 13 connected to this spindle unit 4 from a rest position, as shown in Figures 1 and 2 or 6, into a retracted position, as shown in Figures 3 and 4, and from a retracted position into an engaged position, as shown in Figures 5 and 7.
  • the measuring unit 15 is, for example, a measuring probe which detects the deflections transmitted from the gauge gear 13 via the pick-up spindle 5 to the delivery spindle 6 when measuring the concentricity of the internal toothing 22 of the component 20. It is conceivable that the measuring unit 15 and the adjustment element 14 are arranged on a holding table 16, as shown in Figures 1 to 7.
  • the holding table 16 can preferably be moved in the direction of the spindle longitudinal axis 30. It is particularly advantageous for the holding table 16 to be movable in more than one degree of freedom, but can also be moved and/or tilted in a horizontal direction, orthogonal to the spindle unit longitudinal axis and/or vertically, in particular tilted forwards and/or tilted sideways.
  • the carriage 12 is arranged on the holding table 16 and can advantageously be moved on it in the spindle unit longitudinal direction 30.
  • the device 1 also has a component receiving segment 3, which serves to receive the component 20 and to hold it in a defined position, advantageously rotating it about its longitudinal component axis 31.
  • the component receiving segment 3 has at least one bearing element 17, advantageously two bearing elements 17, which are spaced apart from one another as viewed in the direction of the longitudinal component axis 31, in order to enable a sufficiently reliable storage of the component 20.
  • the spindle unit 4 and therefore the gauge gear 13 are in a rest position. In this position, the spindle unit 4 is not deflected and the gauge gear 13 is not in engagement with the internal toothing 22 of the component 20 to be measured.
  • the adjustment element 14 that is, by activating or deactivating the adjustment element 14 (depending on which tool is selected as the adjustment element)
  • the spindle unit 4 was deflected, that is, moved or pivoted about a preferably non-rigid axis of rotation 19, as shown schematically in Fig. 1.
  • the gauge gear 13 is moved upwards essentially in a vertical direction, in particular raised.
  • the holding table 16 is advantageously activated in order to carry out a movement along the spindle unit longitudinal axis 30 in the direction of the component receiving segment 2.
  • the gauge gear 13 is introduced into a recess 21 of the component 20, in which the internal toothing 22 to be measured is formed.
  • the spindle unit 4 is deflected again. This renewed deflection of the spindle unit 4 is in turn brought about by the adjustment element 14, which is activated or deactivated depending on the tool design.
  • the spindle unit 4 and consequently the gauge gear 13 are moved from the retracted position into an engaged position, as shown in Figures 5 and 7.
  • a movement, in particular tilting of the spindle unit about the non-static axis of rotation 19, as shown schematically in Fig. 1 takes place again, whereby the gauge gear 13 is moved downwards in a vertical direction.
  • the gauge gear 14 advantageously engages with its teeth in a section of the internal toothing 22 of the component 20, as also shown in Figures 5 and 7.
  • the gauge gear 13 is brought into engagement with the internal toothing 22 of the component 20 in such a way that it is moved by its weight alone or advantageously in Combination with the spring force or with the force of an electric drive of the spindle holder foot 9 rests on a lower region of the internal toothing 22 - viewed in the vertical direction - in order to have a required contact pressure.
  • Fig. 5 An alternative to this is shown in Fig. 7.
  • the gauge gear 13 is brought into engagement with the internal toothing 22 of the component 20 in such a way that it engages in an upper region of the internal toothing 22 - viewed in the vertical direction. For this it is necessary to generate a corresponding contact pressure.
  • the contact pressure of the gauge gear 13 required for this is generated, for example, by means of the spindle holder 7, in particular the spindle holder foot 9 in effective cooperation with the adjusting element 14, which can exert a defined tensile force on the spindle unit 4 and consequently the delivery spindle 6.
  • the spindle unit 4 must be deflected or pivoted from a rest position before the gauge gear 13 is applied, as shown in Fig. 6. It is also possible to move the entire holding table 16 upwards in a vertical direction in order to enable the gauge gear 12 to engage the internal gearing 22 in a process-reliable manner.
  • the bearing element 17 is arranged above the arranged component 20 in order to enable a defined counterpressure when the contact pressure is applied by the gauge gear 13 to the internal gearing 22, at least during the measuring process.
  • the bearing element 17 can be designed as a steady rest.
  • the device for measuring concentricity is equipped with a compressed air cleaning device.
  • the pick-up spindle 5 preferably has a pin 105, in particular a bearing pin, for the rotatable, possibly also fixed, reception of the gauge gear 13.
  • the pick-up spindle 5 or the pin 105 is preferably equipped with a receiving area 106 for the gauge gear 13.
  • air flow is understood to mean the entire compressed air path (including oiled compressed air) from the compressed air inlet 107 to the air outlet 104 on the gauge gear 13. From the air outlets 104, the compressed air or the compressed air-oil mixture is sprayed in the direction of the internal gearing 22 to be measured. Oiled compressed air, i.e. compressed air mixed with a lubricant, can also be used as compressed air.
  • the air guide channel 101 is understood to be an axial, continuous, preferably internally centered, cavity, in particular a bore, preferably in the pick-up spindle 5, for the directed and influenced passage of compressed air.
  • the air guide channel 101 can open into an air outlet channel 102 or directly into an air outlet channel 103 of the gauge gear 13.
  • the air outlet channel 102 is understood to be a radially outward-directed outlet channel adjoining the air guide channel 101, in particular for forwarding compressed air into the gauge gear 13.
  • the air outlet channel 102 is introduced into the receiving area 106 for the gauge gear 13, preferably from the outside, in particular as a bore.
  • the air outlet channel 103 is understood to be one or more radially outward-directed bores/recesses in the gauge gear 13.
  • air outlet 104 is understood to mean the outlet area on the gauge gear 13 through which the compressed air hits or hits the tooth area of the component to be measured that is to be cleaned.
  • a compressed air cleaning device comprises an air duct.
  • the air duct comprises an air duct 101, air outlet duct 102, air outlet duct 103 and/or an air outlet 104.
  • the compressed air or oiled compressed air is fed in via the compressed air feed 107.
  • the air duct in particular the air duct 101, air outlet duct 102, air outlet duct 103 and/or an air outlet 104, possibly also a plurality of the aforementioned components, are basically in fluid communication, so that the compressed air or oiled compressed air can enter the air duct 101 via the compressed air inlet 107 and exit from the air outlet 104.
  • the air guide channel(s) 101 and the air outlet channel(s) 102 as part of the pressure cleaning device are preferably provided in the tap spindle 5.
  • the compressed air supply can also be provided through the entire spindle unit 4.
  • FIG. 8 an embodiment of a pressure cleaning device of a device according to the invention for concentricity measurement is shown schematically.
  • the compressed air cleaning device shown here is characterized in that the air guide channel 101 is designed as an axially extending channel in the pick-up spindle 5. Two radially aligned air outlet channels 102 are provided in the pin 105.
  • the air guide channel 101 in the pick-up spindle 5 is designed without any dams, in other words the air guide channel 101 has a constant cross-section over its length.
  • FIG. 9 a further embodiment of a pressure cleaning device of a device according to the invention for concentricity measurement is shown schematically.
  • a pick-up spindle 5 with an air guide channel 101 is shown, which has a tapered diameter, in particular to achieve a nozzle effect.
  • An air outlet channel 102 is designed at 90° to the spindle unit longitudinal axis 30.
  • the compressed air cleaning device shown here is characterized in that the air guide channel 101 is designed as an axially extending channel in the tap spindle 5.
  • a radially aligned air outlet channel 102 is provided in the pin 105.
  • the air guide channel 101 in the tap spindle 5 is designed to be continuously tapered, in particular conical.
  • the air guide channel 101 tapers in particular in the direction of the pin 105.
  • a receiving area 106 on the pin 105 for the gauge gear is sketched.
  • a further embodiment of a pick-up spindle 5, a gauge gear 13 and a pressure cleaning device of a device according to the invention for concentricity measurement is shown schematically.
  • a pick-up spindle 5 with an air guide channel 101 is shown, which has a constant diameter.
  • the compressed air cleaning device shown here is characterized in that the air guide channel 101 is designed as an axially extending channel in the pick-up spindle 5.
  • a radially aligned air outlet channel 102 is provided in the pin 105.
  • the air guide channel 101 in the pick-up spindle 5 is designed without any dams, in other words the air guide channel 101 has a constant cross-section over its length.
  • FIG. 11 a further embodiment of a pressure cleaning device of a device according to the invention for concentricity measurement is shown schematically.
  • a tap spindle 5 with dams in the air duct 101 is shown, in particular for achieving a nozzle effect.
  • the compressed air cleaning device shown here is characterized in that the air guide channel 101 is designed as an axially extending channel in the tap spindle 5.
  • a radially aligned air outlet channel 102 is provided in the pin 105.
  • the air duct 101 is equipped with dams.
  • the air duct 101 has sections with different cross sections.
  • the duct comprises a first section 101a with a first cross section A1, a second section 101b with a second cross section A2 and a third section 101c with a third cross section A3.
  • the third section 101c is arranged on the side of the pick-up spindle 5 facing the pin 105 and the first section 101a on the side facing away from the pin 105.
  • the second section 101b is arranged between the first section 101a and the third section 101c.
  • the first cross section Al is larger than the second cross section A2 and the second cross section A2 is larger than the third cross section A3. This results in the weirs mentioned above.
  • FIG. 12 a further embodiment of a pressure cleaning device of a device according to the invention for concentricity measurement is shown schematically.
  • the compressed air cleaning device shown here is characterized in that the air guide channel 101 is designed as an axially extending channel in the tap spindle 5.
  • a radially aligned air outlet channel 102 is provided in the pin 105.
  • the air guide channel 101 in the tap spindle is designed to be continuously tapered, in particular conical.
  • the air guide channel 101 tapers in particular in the direction of the pin 105.
  • the pin 105 is equipped with a circumferential groove 108.
  • the radially aligned air outlet channel 102 opens into the circumferential groove 108.
  • Fig. 13 shows a further embodiment of the compressed air cleaning device in a sectional view.
  • a pick-up spindle 5 with an air outlet channel 102 designed obliquely to the spindle unit longitudinal axis, for example 135° to the spindle unit longitudinal axis 30, is shown.
  • the compressed air cleaning device shown here is characterized in that the air guide channel 101 is designed as an axially extending channel in the pick-up spindle 5.
  • An air outlet channel 102 aligned at an angle to the spindle unit longitudinal axis 30 is provided in the pin 105.
  • the air outlet channel 102 can, for example, assume an angle of 135° to the spindle unit longitudinal axis 30.
  • the air guide channel 101 in the pick-up spindle is designed without any dams, in other words the air guide channel 101 has a constant cross-section over its length.
  • Fig. 14 shows a further embodiment of the compressed air cleaning device in a sectional view.
  • a tap spindle 5 with dam stages and several air outlet channels 102 is shown.
  • the compressed air cleaning device shown here is characterized in that the air guide channel 101 is designed as an axially extending channel in the tap spindle 5.
  • Two radially aligned air outlet channels 102 are provided in the pin 105.
  • the air duct 101 is equipped with dams.
  • the air duct 101 has sections with different cross sections.
  • the duct comprises a first section 101a with a first cross section A1, a second section 101b with a second cross section A2 and a third section 101c with a third cross section A3.
  • the third section 101c is arranged on the side of the pick-up spindle 5 facing the pin 105 and the first section 101a on the side facing away from the pin 105.
  • the second section 101b is arranged between the first section 101a and the third section 101c.
  • the first cross section A1 is larger than the second cross section A2 and the second cross section A2 is larger than the third cross section A3. This results in the dams already mentioned above.
  • FIG. 15 to 17 further embodiments of a pressure cleaning device of a device according to the invention for concentricity measurement are shown schematically.
  • the air duct 101 through the pick-up spindle 5 is here aligned at an angle to the spindle unit's longitudinal axis 30.
  • the air duct 101 can, for example, be conical or include retaining stages. In principle, it can of course also have a consistently constant cross-section.
  • One, two or more air ducts 101 can run through the pick-up spindle.
  • the air duct 101 or the air ducts 101 can also open directly into the pin surface or have an outlet. In other words, the air outlet duct 102 outlined above can also be omitted. Reference is made below to Figs. 18 to 18c, 19 to 19c, 20 to 20c and 21 to 21c. Figs.
  • the air outlet channels 103 or air outlets 104 as part of the pressure cleaning device are provided in particular in the gauge gear 13.
  • the gauge gear 13 as such has a bore 131.
  • the pin 105 can be inserted into the bore 131 accordingly.
  • Fig. 18 to 18c This is a gauge gear in which the tooth flanks are designed in the shape of a circular arc.
  • Air outlet channels 103 are provided which extend from the bore 131 into the tooth heads.
  • the respective air outlet 104 is arranged at the end of the respective air outlet channel 103, in this case in the tooth heads.
  • the air outlet channels 103 are arranged on the horizontal center line (axis of symmetry) 332 of the gauge gear 13 around the axis of rotation 32 of the gauge gear 13.
  • Fig. 19 to 19c This is a gauge gear in which the tooth flanks are designed in the shape of a circular arc.
  • Air outlet channels 103 are provided which extend from the bore 131 into the tooth bases.
  • the respective air outlet 104 is arranged at the end of the respective air outlet channel 103, in this case in the tooth bases.
  • the air outlet channels 103 are arranged on the horizontal center line (axis of symmetry) 332 of the gauge gear 13 around the axis of rotation 32 of the gauge gear 13.
  • Fig. 20 to 20c This is a gauge gear 13 in which the tooth flanks are involute-shaped.
  • Air outlet channels 103 are provided which extend from the bore 131 into the tooth tips.
  • the respective air outlet 104 is arranged at the end of the respective air outlet channel 103, in this case in the tooth tips.
  • the air outlet channels 103 are arranged on the horizontal center line (axis of symmetry) 332 of the gauge gear 13 around the axis of rotation 32 of the gauge gear 13. Reference is made below to Fig. 21 to 21c. This is a gauge gear 13 in which the tooth flanks are involute-shaped.
  • Air outlet channels 103 are provided which extend from the bore 131 into the tooth bases.
  • the respective air outlet 104 is arranged at the end of the respective air outlet channel 103, in this case in the tooth bases.
  • the air outlet channels 103 are arranged on the horizontal center line (axis of symmetry) xy of the gauge gear 13 around the axis of rotation of the gauge gear 13.
  • the spindle unit 4, in particular the pick-up spindle 5, is one-piece and ultimately forms the delivery spindle 6 and the pick-up spindle 5.
  • the air guide channel 101 extends from the compressed air feed 107 along the spindle 5 to the air outlet channel 102 / gauge gear 13 / air outlet channel 103 or air outlet 104.
  • the spindle 5 is rotatable about a pivot point D on a tool bed.
  • Adjustment is possible via elements, in particular adjustment element 14 or measuring unit 15, at the other end of the spindle 5 facing away from the gauge gear 13.
  • Fig. 22a and 22b show two exemplary embodiments of how the air duct 101 can be formed.
  • Fig. 22a it is shown that the spindle 5 with a groove 111 or a similar design creates a recess relative to the outer surface.
  • FIG. 22b the spindle 5 and the tube 110 are shown, which has a larger diameter than the spindle 5 and is mounted at a distance from the spindle 5, so that a gap is formed between the tube 110 and the spindle 5, which forms the air guide channel 101.
  • Fig. 23 shows a further embodiment of a gauge gear 13 for a device according to the invention for concentricity measurement in a perspective view.
  • a variant with a partial air outlet 104 is provided.
  • the gauge gear 13 has no circumferential groove 109 in the bore 131 and the air outlet opening on the pin 105 or spindle unit 4, in particular the pick-up spindle 5, only supplies the air outlet channels 103 of the gauge gear 13 with air-oil mixture in a certain angular segment. Thus, only the air outlets 104 of the gauge gear 13 are used where the teeth or tooth gaps are shortly before, during or after engagement. This depends on the design of the air outlet channel 103 of the spindle 4 and the air outlet channel 103 of the gauge gear 13 and the position of the air transition cross-sections relative to one another.
  • the spindle unit 4, in particular the pick-up spindle 5 or the pin 105, has one or more air outlet channels 102, but no circumferential groove above the openings, so that the air cannot be transported further in a radially circumferential manner, but can only be transferred to a "congruent" air outlet channel 103 in the gauge gear.
  • the air outlet channels 103 extend alternately from the bore 131 in the direction of the tooth tips and the tooth roots. Other pairings are also conceivable.
  • the air outlets 104 are arranged at the end of the air outlet channels 103. The air flow is thus alternately guided via the air outlet 104 of the tooth tip and then via the air outlet 104 of the following tooth root.
  • Fig. 24 shows a sectional view of an embodiment of a device for concentricity measurement with a pressure cleaning device according to the invention.
  • the air guide channel 101 extending through the spindle unit 4, in particular the pick-up spindle 5 and the delivery spindle 6, can be seen.
  • the compressed air or oiled compressed air is fed via the Compressed air is fed into the supply line 107 and fed through the air guide channel 101 to the gauge gear 13 in its air outlet channels 103.
  • the device for concentricity measurement or compressed air cleaning device can be characterized by the following further features.
  • an advantageous structurally optimized design of the air guide in particular compressed air supply to the internal toothing of a component, in particular a shaft, is provided.
  • partial air outlets can be provided on the pin or bearing pin of the pick-up spindle in the receiving or arrangement area of the gauge gear 13.
  • the air duct is designed in such a way that the gearing of the shaft is pressurized or supplied with oiled compressed air before the actual measurement.
  • the air guide is designed in such a way that the friction surfaces between the bore 131 of the gauge gear 13 and/or the flat surfaces of the gauge gear 13 can also be supplied with oiled compressed air.
  • the gauge gear 13 is equipped with an air guide.
  • the pick-up spindle 5 with hollow pin 105 is equipped with an air guide.
  • the gauge gear 13 rotates on the pick-up spindle 5, in particular the pin 105.
  • the gauge gear 13 is arranged on the pin 105 of the pick-up spindle 5 in an axially fixed but rotatable manner.
  • the gauge gear 13 and the pick-up spindle 5 rotate together.
  • the gauge gear 13 is arranged axially fixed and non-rotatable on the pick-up spindle 5, in particular the pin 105.
  • the air guide of the pick-up spindle 5 is designed as an internally centered air guide channel 101, which has an air outlet 104a in the direction of the side receiving the gauge gear 13.
  • the air guide channel 101 can have various geometric configurations which generate or promote a nozzle effect in the direction of the side of the air guide channel 101 which receives the gauge gear 13.
  • the air guide channel 101 is designed with a constant diameter or the air guide channel 101 is designed with one or more diameter jumps, in particular barrages, or stepped or narrowing diameters, in particular for generating a nozzle effect or acceleration effect in the direction of the side receiving the gauge gear 13.
  • the air guide channel 101 has a continuously tapering, in particular conical, diameter in the direction of the side receiving the gauge gear 13, in particular to achieve a nozzle effect or acceleration effect.
  • the air duct 101 or air ducts can also be installed axially obliquely in the pick-up spindle 5.
  • the radially outward-facing outlet duct 102 to the air duct can be omitted for the air outlet, as outlined above.
  • the air duct 101 can, for example, be directed radially outward at an angle of 45° to the spindle unit longitudinal axis 30 of the pick-up spindle 5.
  • the air duct or ducts 101 can be provided with a constant diameter, one or more diameter jumps or continuously tapering, in particular conical, Diameter.
  • the air guide channel(s) 101 are preferably arranged in the pick-up spindle 5 in such a way that no imbalance is created or counteracted.
  • the air outlet channel 102 of the pick-up spindle 5 is preferably designed as at least one radially outward-directed air outlet channel 102, which adjoins or merges with the air guide channel 101 in the receiving area of the gauge gear, in particular on the pin of the pick-up spindle 5.
  • the air guide channel 101 preferably merges into the air outlet channel 102.
  • the compressed air or oiled compressed air guided through the air guide channel 101 is preferably guided through the air outlet channel 102 to the air outlet channel 103 or air outlet 104.
  • Particularly advantageous embodiments are, for example, when the air outlet channel 102 is directed radially outwards at an angle of 45° to 135°, preferably at 90°, to the spindle unit longitudinal axis 30 of the pick-off spindle 5.
  • the air outlet channel 102 preferably has a constant diameter dimension.
  • the diameter of the air outlet channel 102 preferably has a diameter that is smaller than the smallest diameter of the air guide channel 101. This can enhance the nozzle effect.
  • the air outlet channel 102 can have a continuous diameter expansion in the flow direction.
  • the air outlet channel 102 can open into a partial groove or a circumferential groove.
  • the air guide of the gauge gear is preferably designed as at least one air outlet channel 103, preferably several air outlet channels 103, which are preferably arranged on or in the gauge gear 13 in such a way that the internal toothing of the component to be measured is supplied with (oiled) compressed air as optimally as possible.
  • a particularly advantageous embodiment of the outlet channels 103 is, for example, to lead the air outlet channels 103 in the direction of the tip circle, root circle and/or tooth flank of the toothing of the gauge gear 13, in particular per tooth, root and/or tooth flank.
  • the preferred geometric design of the air outlet channel 103 is cylindrical. However, other geometric designs are also conceivable, in particular designs which further increase the nozzle effect.
  • the arrangement of the air outlet channel(s) 103 in the tip circle and/or root circle and/or tooth flanks of the gauge gear 13 can be in different combinations.
  • the gauge gear 13 can have a partial or circumferential groove 109 in the joining area to the pin 105 for better compressed air distribution to the respective air outlet channels 103.
  • the multiple (at least one) air outlets 104 on the gauge gear 13 can have different geometric designs.
  • a circular air outlet, an elliptical air outlet, in particular a narrowing air outlet, or a rectangular air outlet, for example by erosion, can be provided.
  • the air transition from the pick-up spindle 5 can open into several air outlet channels 103 of the gauge gear 13.
  • a nozzle effect can be created at the air outlet 104 of the gauge gear 13, in particular through a small gap between the gauge gear 13 and the gearing to be measured.
  • the gauge gear 13 is preferably pressed onto the pick-up spindle 5 if the pick-up spindle 5 itself is rotatably mounted. Otherwise, i.e. if the pick-up spindle 5 is not rotatable, the gauge gear 13 is rotatable on the pick-up spindle 5, in particular the pin 105. However, it is also conceivable that the gauge gear 13 is connected to the pick-up spindle 5 in another form-fitting, force-fitting or even material-fitting manner.
  • the tooth shape of the gauge gear 13 is designed as a circular arc.
  • the tooth shape of the gauge gear 13 is designed as an involute.
  • the tooth shape of the gauge gear 13 is designed as a cylindrically ground circular arc, as a radius/circular arc continuously cylindrical, as an involute continuously cylindrical, as a radius/circular arc spherical design or as an involute spherical design.
  • the tooth shape of the gauge gear 13 is designed as a cylindrically ground involute.
  • the device in particular its compressed air cleaning device, in particular its air guide, air guide channel 101, air outlet channel 102, air outlet channel 103 and/or air outlet 104, can have numerous designs, not all of which are shown here.
  • one or more air guide channels 101 are provided within the pick-up spindle 5, and/or the air guide channel 101 or the air guide channels 101 are aligned straight or obliquely with respect to the spindle unit longitudinal axis 30, and/or the air guide channel 101 or the air guide channels 101 are equipped with a constant cross-section over the length, conical or with steps.
  • one or more air outlet channels 102 are provided in the pick-up spindle 5, in particular in the pin 105 of the pick-up spindle 5, and/or the air outlet channel 102 or the air outlet channels 102 are aligned radially or obliquely with respect to the spindle unit longitudinal axis 30.
  • a circumferential or at least partially circumferential groove 108 is provided in the pin 105, wherein the air outlet channel(s) 102 open into the groove 108.
  • air outlet channels 103 are arranged in the gauge gear 13, which extend from the bore in the direction of the tooth tips, tooth flanks and/or tooth roots.
  • the air outlets are arranged at the ends of the air outlet channels in the tooth tips, tooth flanks and/or tooth roots.
  • the compressed air cleaning device in particular the air guide, in particular the gauge gear 13 is designed such that only the tooth gaps of the gauge gear 13 are subjected to compressed air which are shortly before contact and/or in contact with the internal toothing 22 to be measured.
  • This can be implemented structurally, for example, by aligning the air outlet channel 102 with regard to the contact of the tooth gaps of the gauge gear 13 with the internal toothing 22 to be measured.
  • the method according to the invention for measuring the concentricity of an internal toothing 22 of a component 20, in particular a shaft, with a device according to the invention comprises the method step of cleaning, in particular blowing out, the internal toothing 22 by means of the compressed air cleaning device.
  • the air guide in particular in the form of bores, is preferably introduced into the root circle of the gauge gear 13 and the air outlet 102 of the pick-up spindle 5, in particular of the pin 105, for the gauge gear 13 is preferably designed such that only the tooth gaps of the gauge gear 13 are subjected to compressed air which are shortly before contact and/or in contact with the internal toothing 22 to be measured. In this position, the greatest possible jet effect should be created between the tooth gap of the gauge gear 13 and the respective tooth of the measuring object, which increases the flow speed of the air and thus also brings about an advantageous cleaning of the internal toothing 22.
  • the air pressure should preferably be selected so that no radial deflection of the measuring structure and thus no measurement error can occur.
  • the method according to the invention is further preferably characterized by an additional or simultaneous cleaning of the component, in particular the shaft, in particular indirectly via the gauge gear 13, during the measurement, in particular directly after the gear cutting process, using compressed air or oiled compressed air.
  • compressed air or oiled compressed air in particular, lubrication of the gauge gear 13 results.
  • the compressed air or oiled compressed air is guided in particular via the pick-up spindle 5 through the gauge gear 13 into the internal gearing 22.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

L'invention concerne un dispositif (1) de mesure de la course réelle d'un jeu de dents internes (22) d'un composant (20), en particulier d'un arbre, le dispositif (1) comprenant au moins un segment de détermination (2) pour déterminer un écart de course réelle, comprenant une unité de broche (4) ayant une broche de taraudage (5) comportant une roue de pignon de jauge (13), disposée au niveau d'une première extrémité de la broche de taraudage (5), pour recueillir la course réelle du jeu de dents internes (22) du composant (2), et une broche de sortie (6) pour transmettre la course réelle qui est recueillie par la broche de taraudage (5) à une unité de mesure (15), la broche de sortie (6) étant disposée indirectement ou directement sur une seconde extrémité de la broche de taraudage (5) qui est opposée à la première extrémité de la broche de taraudage (5), et un support de broche (7) au moins pour maintenir et positionner la broche de taraudage (5) ou la broche de sortie (6), avantageusement l'unité de broche (4), une unité de réglage (14) au moins pour positionner au moins la roue de pignon de jauge (13) reliée à la broche de taraudage (5), et l'unité de mesure (15) pour comparer la course réelle recueillie avec des valeurs de référence, la broche de taraudage (5) ayant un axe longitudinal (30) d'unité de broche, la roue de pignon de jauge (13) comprenant un alésage pour être reçue sur la broche de taraudage (5), le dispositif étant équipé d'un appareil de nettoyage à air comprimé. L'invention concerne également un procédé de nettoyage d'un composant avec un dispositif selon l'invention.
PCT/EP2024/051002 2023-01-25 2024-01-17 Dispositif de mesure de la course réelle d'un jeu de dents interne d'un composant, en particulier d'un arbre, et procédé de nettoyage d'un composant, en particulier d'un jeu de dents interne du composant WO2024156559A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102023101784.5 2023-01-25
LU103062A LU103062B1 (de) 2023-01-25 2023-01-25 Vorrichtung zur Rundlaufmessung für eine Innenverzahnung eines Bauteils, insbesondere einer Welle, sowie Verfahren zur Reinigung eines Bauteils, insbesondere einer Innenverzahnung des Bauteils
LULU103062 2023-01-25
DE102023101784.5A DE102023101784A1 (de) 2023-01-25 2023-01-25 Vorrichtung zur Rundlaufmessung für eine Innenverzahnung eines Bauteils, insbesondere einer Welle, sowie Verfahren zur Reinigung eines Bauteils, insbesondere einer Innenverzahnung des Bauteils

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WO2024156559A1 true WO2024156559A1 (fr) 2024-08-02

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PCT/EP2024/051002 WO2024156559A1 (fr) 2023-01-25 2024-01-17 Dispositif de mesure de la course réelle d'un jeu de dents interne d'un composant, en particulier d'un arbre, et procédé de nettoyage d'un composant, en particulier d'un jeu de dents interne du composant

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1055496A2 (fr) * 1999-05-26 2000-11-29 Rampf Formen GmbH Dispositif de nettoyage pour éléments de moulage
DE102017215285A1 (de) 2017-08-31 2019-02-28 Thyssenkrupp Ag Vorrichtung und Verfahren zur Rundlaufmessung einer Innenverzahnung einer Welle
DE102016006659B4 (de) * 2016-06-01 2020-12-17 Hochschule Magdeburg-Stendal Messsystem und Verfahren zur berührungslosen Vermessung von Werkstücken

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1055496A2 (fr) * 1999-05-26 2000-11-29 Rampf Formen GmbH Dispositif de nettoyage pour éléments de moulage
DE102016006659B4 (de) * 2016-06-01 2020-12-17 Hochschule Magdeburg-Stendal Messsystem und Verfahren zur berührungslosen Vermessung von Werkstücken
DE102017215285A1 (de) 2017-08-31 2019-02-28 Thyssenkrupp Ag Vorrichtung und Verfahren zur Rundlaufmessung einer Innenverzahnung einer Welle
EP3676562B1 (fr) * 2017-08-31 2022-03-09 thyssenkrupp Dynamic Components TecCenter AG Dispositif et procédé de mesure de la concentricité d'une denture intérieure d'une pièce, en particulier un arbre

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