JP2017072378A - Engaging mechanism, balance measurement device, engaging method, balance measurement method, and balance correction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an engaging mechanism which can be inexpensively automated with a simple structure, an engaging method, and a balance measurement device using these elements, balance measurement method, and a balance correction method.SOLUTION: A balance measurement device 10 comprises: a rotatable placement stand 11 mounted with a work such as a stator wheel 20; and a nozzle 12 arranged in a periphery of the placement stand 11 and capable of injecting a fluid obliquely and upward. The placement stand 11 includes an insertion shaft part 11B formed by protruding so as to be inserted into an opening 21 formed in a center part of the stator wheel 20. An outer periphery part of the insertion shaft part 11B is formed with a recess part 11C to be engaged with a recess part 25 provided in an inner periphery part of the stator wheel 20. The stator wheel 20 is rotated by the injection of the fluid from the nozzle 12, and thereby the positions of the recess part 25 and the recess part 11C are matched.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a fitting mechanism for fitting a workpiece to a mounting table, a fitting method, and a balance measuring device, a balance measuring method, and a balance correcting method using these.

  In the manufacture of a stator wheel used in a torque converter, there is a step of measuring the balance of the manufactured stator wheel and correcting the unbalance of the poorly balanced one. The balance measuring device used in this step is, for example, mounting a stator wheel on a turntable, rotating the turntable to rotate the stator wheel, and detecting an imbalance during rotation of the stator wheel by a sensor or the like. It has become. The turntable of the balance measuring device has, for example, a recess corresponding to the protrusion formed on the inner periphery of the stator wheel. When the stator wheel is placed on the turntable, the protrusion of the stator wheel It is necessary to fit the part into the recess of the turntable. Therefore, in order to automate the placement of the stator wheel on the turntable, an expensive alignment facility using a sensor or the like is required. Therefore, it has been desired to develop a device that can automate the mounting of the stator wheel on the turntable with a simple structure and at a low cost.

JP 2005-172538 A JP 2011-2380 A

  The present invention has been made on the basis of such a problem, and a fitting mechanism, a fitting method, and a method that can automate fitting of a workpiece to a mounting table with a simple configuration at low cost. An object of the present invention is to provide a balance measuring apparatus, a balance measuring method, and a balance correcting method.

  Note that Patent Document 1 relates to a support device for correcting the balance of a rotating body so that the balance correction of a heavy rotating body can be supported in a floating state with an incompressible fluid such as lubricating oil with high accuracy. What is made is described. However, the balance correction support device described in Patent Document 1 uses an incompressible fluid, stably floats even a heavy rotating body, and supports and rotates without being eccentric. It is not for mounting on a turntable as in the present invention, and the specific purpose and configuration are different.

  Patent Document 2 includes a semicircular or U-shaped bearing that rotatably supports a rotating body, and jets gas toward the rotating shaft of the rotating body to stabilize the rotating body at the center of the bearing. An unbalance measuring device that can be floated is described. However, the unbalance measuring device described in Patent Document 2 is a device that floats from the rotating shaft of the rotating body and the bearing so as to be non-contact in order to eliminate frictional resistance when measuring imbalance. Thus, it is not for mounting on a turntable, and the specific purpose and configuration are different.

  The fitting mechanism of the present invention has an insertion shaft portion that is formed so as to be inserted into an opening formed in the center portion of the workpiece and on which the workpiece is placed. A mounting table provided with one or more recesses so that one or more projections provided in the inner peripheral part of the mounting unit are fitted, and a fluid is disposed on the peripheral part of the mounting table and is inclined upward. A plurality of nozzles that rotate the work by injecting fluid from obliquely below to the blades provided along the circumferential direction of the work, and align the positions of the convex part and the concave part. It is provided.

  The balance measuring apparatus of the present invention measures the balance of a workpiece, includes the fitting mechanism of the present invention, and the mounting table is a rotating table that can rotate in the horizontal direction.

  The fitting method of the present invention is for fitting a workpiece to a mounting table, and has an insertion shaft portion that protrudes so as to be inserted into an opening formed in the center portion of the workpiece. A mounting step of mounting the workpiece on a mounting table in which one or more recesses into which one or more protrusions provided on the inner periphery of the workpiece are fitted are formed on the outer peripheral portion of the workpiece; After the placing process, the blade is provided along the circumferential direction of the workpiece, and the workpiece is rotated by injecting the fluid obliquely from below to align the convex portion of the workpiece with the concave portion of the mounting table. Process.

  The balance measuring method of the present invention is to measure the balance of a workpiece, and fits the workpiece to a mounting table that is a turntable that can be rotated in the horizontal direction by the fitting method of the present invention. is there.

  The balance correction method of the present invention includes a step of measuring the balance of the workpiece by the balance measurement method of the present invention, and a step of correcting the balance of the workpiece at the time of unbalance.

  According to the present invention, the work is rotated by jetting a fluid from obliquely below to the blade portion of the work placed on the mounting table so that the convex portion of the work and the concave portion of the mounting table are aligned. Therefore, alignment can be easily performed without using expensive alignment equipment using a sensor or the like. Therefore, the fitting of the workpiece to the mounting table can be automated with a simple structure at a low cost.

  Moreover, the convex part of a workpiece | work and the recessed part of a mounting base can be reliably fitted by raising and lowering the workpiece | work mounted in the mounting base, and mounting a workpiece | work horizontally on a mounting base. .

  Furthermore, if the nozzle injection angle can be changed, it is possible to cope with workpieces having different specifications by changing the nozzle injection angle.

It is a figure showing one structural example of the stator wheel which measures a balance in the balance measuring apparatus provided with the fitting mechanism which concerns on one embodiment of this invention. It is a figure showing the structure of the balance measuring apparatus provided with the fitting mechanism which concerns on one embodiment of this invention. It is sectional drawing along the III-III line shown in FIG. It is sectional drawing showing the structure of the nozzle shown in FIG. It is a figure showing each process of the balance measuring method using the balance measuring apparatus shown in FIG. It is a figure showing the process of following FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows an example of a configuration of a stator wheel 20 that measures balance in a balance measuring apparatus 10 having a fitting mechanism according to an embodiment of the present invention. The structure seen from the side is represented, (B) represents the cross-sectional structure along the II line | wire shown to (A). FIG. 2 illustrates a configuration of the balance measuring apparatus 10 including the fitting mechanism according to the embodiment of the present invention as viewed from the horizontal direction. FIG. 3 shows a configuration of the balance measuring apparatus 10 shown in FIG. 2 as viewed from above. FIG. 4 shows a sectional configuration of the nozzle shown in FIG.

  The balance measuring apparatus 10 measures the balance of a workpiece such as a stator wheel 20 used in a torque converter, for example. For example, in the torque converter, the stator wheel 20 is disposed between a pump impeller connected to the input side and a turbine runner disposed so as to face the pump impeller, and rectifies an exhaust flow from the turbine runner. A torque amplification action is generated by reducing to a pump impeller. For example, the stator wheel 20 is formed in an annular shape with an opening 21 formed in the center. In the stator wheel 20, for example, an annular outer diameter portion 22 is formed on the outer peripheral side, an annular inner diameter portion 23 is formed on the inner peripheral side, and a circumferential direction is provided between the outer diameter portion 22 and the inner diameter portion 23. The blade | wing part 24 is formed along.

  For example, a plurality of blades 24 </ b> A are arranged in the blade portion 24 along the circumferential direction. For example, each blade 24A is disposed so as to be inclined from the lower side toward the upper side along the circumferential direction. On one side of each blade 24A in the central axis direction, for example, a convex curved portion curved into a convex line is formed, and on the other side in the central axis direction, for example, a concave curved portion curved into a concave shape is formed. Has been. Further, one or more convex portions 25 are provided to protrude toward the center on the inner peripheral portion of the stator wheel 20, that is, on the inner peripheral side of the inner diameter portion 23. In the present embodiment, an example in which a plurality of (for example, four) convex portions 25 are provided is shown.

  The balance measuring apparatus 10 includes a fitting mechanism for fitting a workpiece such as the stator wheel 20 or the like to the mounting table 11. The mounting table 11 is a rotating table on which the stator wheel 20 is mounted and is rotatable in the horizontal direction. The mounting table 11 protrudes upward from the placement portion 11A so as to be inserted into, for example, a placement portion 11A in which the inner peripheral portion of the stator wheel 20 abuts and a center portion of the stator wheel 20. The insertion shaft portion 11B is formed. In the outer peripheral portion of the insertion shaft portion 11B, for example, one or more concave portions 11C into which one or more convex portions 25 provided on the inner peripheral portion of the stator wheel 20 are individually fitted are formed. It is preferable that the upper end portion of the insertion shaft portion 11B is formed with, for example, an inclined portion 11D that is inclined so that the outer diameter decreases upward. Further, the mounting table 11 is provided with a motor 11E for rotating the mounting table 11.

  The balance measuring apparatus 10 also includes a plurality of nozzles 12 that are disposed on the peripheral edge of the mounting table 11 and can eject fluid obliquely upward as a fitting mechanism. The nozzle 12 rotates the stator wheel 20 by injecting a fluid from obliquely below to a blade portion 24 provided along the circumferential direction of the stator wheel 20, and positions the convex portions 25 and the concave portions 11 </ b> C. It is for matching. Air is preferably used as the fluid to be ejected. For example, three nozzles 12 are preferably provided, and the nozzles 12 are preferably arranged at equal intervals. This is because the stator wheel 20 can be rotated in a well-balanced manner by applying an even force to the stator wheel 20.

  Each nozzle 12 is preferably adjusted in position so that the fluid is in direct contact with the center of each blade 24A of the stator wheel 20, and the injection angle of the nozzle is changed according to the specifications of the stator wheel 20. Preferably it is possible. For example, the ejection angle of each nozzle 12 is preferably about 45 to 65 degrees with respect to the horizontal plane. The stator wheel 20 is preferably mounted on the mounting table 11 with the concave curved portion side down, so that the fluid ejected from each nozzle 12 hits the concave curved portion of each blade 24A. It is preferable to do.

  For example, a supply pipe 13 for supplying a fluid is connected to each nozzle 12. The supply pipe 13 includes a supply main pipe 13A connected to a fluid supply source (not shown), and a plurality of supply branch pipes 13B branched from the supply main pipe 13A and connected to the nozzles 12. Have. In this way, if a plurality of supply branch pipes 13B are branched from one supply main pipe 13A and connected to each nozzle 12, variations in the pressure of fluid ejected from each nozzle 12 can be reduced. Therefore, it is preferable.

  The pressure of the fluid to be ejected is preferably adjusted so that the rotation speed of the stator wheel 20 is in the range of 0.2 r / sec to 0.4 r / sec. For example, although depending on the weight of the stator wheel 20, for example, it is preferable that the supply pressure to the supply main building 13A is about 0.4 MPa to 0.45 MPa. This is because if the pressure is too small, the stator wheel 20 cannot be sufficiently rotated, and if the pressure is too large, the stator wheel 20 rotates too quickly and is detached from the mounting table 11 or flies away.

  It is preferable that the balance measuring apparatus 10 further includes an up-and-down turning conveying means 14 that lifts and lowers the stator wheel 20 mounted on the mounting table 11 with a C-shaped ring member 14A as a fitting mechanism. The up-and-down swivel conveying means 14 lifts and lowers the stator wheel 20 placed on the inclined portion 11D of the placing table 11 so as to horizontally place the stator wheel 20 on the placing table 11 so that the stator wheel 20 It has the function as an up-and-down moving means which fits the convex part 25 and the recessed part 11C of the mounting base 11. The vertical swivel conveying means 14 is disposed, for example, at the peripheral portion of the mounting table 11, and a C-shaped ring member 14A for lifting the stator wheel 20 from below, and a vertical swivel driving means for moving the C-shaped ring member 14A up and down or swiveling. 14B. The C-shaped ring member 14A is preferably configured in a C shape so as to support the lower side of the stator wheel 20, for example.

  The balance measuring apparatus 10 includes, for example, a balance measuring method for measuring the balance of the stator wheel 20, a step of measuring the balance of the stator wheel 20, and the balance of the stator wheel 20 at the time of unbalance after measuring the balance. It is used for the balance correction method including the process to correct.

  5 and 6 show each step in the balance measurement method. First, for example, as shown in FIG. 5A, the stator wheel 20 moves on a slider (not shown), slides down on the mounting table 11, and is mounted. The stator wheel 20 is preferably placed with the concave curved portion side down. At this stage, since the stator wheel 20 is only placed on the mounting table 11, the positions of the convex portions 25 of the stator wheel 20 and the concave portions 11C of the mounting table 11 do not match, and the stator The wheel 20 may be placed obliquely with respect to the placement table 11.

  Next, for example, as shown in FIG. 5B, each nozzle 12 injects fluid from obliquely downward to the blade portion 24 of the stator wheel 20 to apply force to the stator wheel 20. Thereby, the stator wheel 20 rotates, and when the convex part 25 of the stator wheel 20 reaches the position of the concave part 11C of the mounting table 11, the convex part 25 is caught by the concave part 11C, and rotation stops. For example, when four convex portions 25 and four concave portions 11C are provided, the positions of the convex portions 25 and the concave portions 11C can be aligned by rotating by a maximum of 90 degrees. At this stage, the convex portion 25 of the stator wheel 20 and the concave portion 11C of the mounting table 11 are aligned, but the stator wheel 20 is mounted obliquely with respect to the mounting table 11, and the stator wheel 20 is opened. In some cases, the insertion shaft portion 11 </ b> B of the mounting table 11 is not completely inserted into 21.

  Subsequently, for example, as shown in FIGS. 6A and 6B, the stator wheel 20 is moved up and down to raise and lower the stator wheel 20 mounted on the mounting table 11. Is mounted horizontally on the mounting table 11. As a result, the stator wheel 20 is horizontal in a state where the convex portion 25 of the stator wheel 20 and the concave portion 11C of the mounting table 11 are aligned, and the insertion shaft portion 11B of the mounting table 11 is completely in the opening 21 of the stator wheel 20. The convex portion 25 of the stator wheel 20 and the concave portion 11C of the mounting table 11 are fitted.

  Thereafter, the stator wheel 20 is rotated by rotating the mounting table 11, and the balance of the stator wheel 20 is measured. Here, if the stator wheel 20 is unbalanced, for example, the stator wheel 20 is lifted and swung by the up-and-down turning conveying means 14 and moved to the unbalance correcting step to correct the balance.

  As described above, according to the present embodiment, the stator wheel 20 is rotated by injecting the fluid from the obliquely lower side to the blade portion 24 of the stator wheel 20 mounted on the mounting table 11, and the convexity of the stator wheel 20. Since the position of the portion 25 and the concave portion 11C of the mounting table 11 are aligned, alignment can be easily performed without using expensive alignment equipment using a sensor or the like. Therefore, fitting of the stator wheel 20 to the mounting table 11 can be automated with a simple structure at a low cost.

  Further, by raising and lowering the stator wheel 20 mounted on the mounting table 11, the stator wheel 20 is horizontally mounted on the mounting table 11, so that the convex portion 25 of the stator wheel 20 and the concave portion of the mounting table 11 are obtained. 11C can be securely fitted.

  Furthermore, if the injection angle of the nozzle 12 can be changed, even the stator wheel 20 having different specifications can be subjected to direct injection to the blade portion by changing the injection angle of the nozzle 12.

  The present invention has been described with reference to the embodiment. However, the present invention is not limited to the above embodiment, and various modifications can be made. For example, in the above-described embodiment, the case where the balance of the stator wheel 20 is measured as a workpiece has been specifically described. However, the present invention can be similarly applied to other workpieces. In the above-mentioned embodiment, although one example of composition of stator wheel 20 was explained concretely, the present invention is not limited to this, but can apply widely also to what has other specifications. Furthermore, in the above-described embodiment, the fitting mechanism has been described by taking the balance measuring device 10 as an example. However, the present invention can be widely applied when fitting a workpiece to a mounting table, for example, machining or The present invention can also be applied to a cleaning apparatus.

  In addition, in the above-described embodiment, each component has been specifically described, but may have other configurations. Furthermore, it is not necessary to provide all the components described in the above embodiment, and other components may be provided.

  DESCRIPTION OF SYMBOLS 10 ... Balance measuring apparatus, 11 ... Mounting table, 11A ... Arrangement | positioning part, 11B ... Insertion shaft part, 11C ... Recessed part, 11D ... Inclination part, 11E ... Motor, 12 ... Nozzle, 13 ... Supply pipe, 13A ... Supply main pipe, 13B ... Supply branch pipe, 14 ... Vertical swivel conveying means, 14A ... C-shaped ring member, 14B ... Vertical swivel drive means, 20 ... Stator wheel, 21 ... Opening, 22 ... Outer diameter part, 23 ... Inner diameter part, 24 ... Blade Part, 24A ... blade, 25 ... convex part

Claims (8)

The workpiece is placed and has an insertion shaft portion formed so as to protrude into an opening formed in the center portion of the workpiece, and provided on the outer peripheral portion of the insertion shaft portion on the inner peripheral portion of the workpiece. A mounting table provided with one or more recesses so that the one or more protrusions formed are fitted;
The work is disposed on the peripheral edge of the mounting table and can eject fluid obliquely upward, and the fluid is ejected obliquely from below to a blade portion provided along the circumferential direction of the work. And a plurality of nozzles for aligning the positions of the convex part and the concave part.   By lifting and lowering the workpiece placed on the mounting table, the workpiece is placed horizontally on the mounting table, thereby fitting the convex portion of the workpiece with the concave portion of the mounting table. The fitting mechanism according to claim 1, further comprising a moving unit.   The fitting mechanism according to claim 1, wherein an injection angle of the nozzle is changeable. A balance measuring device for measuring the balance of a workpiece,
A fitting mechanism according to any one of claims 1 to 3, comprising:
The balance measuring apparatus, wherein the mounting table is a rotating table that is rotatable in a horizontal direction. A fitting method for fitting a workpiece to a mounting table,
One or more convex portions provided on the inner peripheral portion of the workpiece, having an insertion shaft portion that protrudes so as to be inserted into an opening formed in the center portion of the workpiece, A mounting step of mounting a workpiece on a mounting table in which one or more recesses are formed;
After the placing step, the workpiece is rotated by jetting fluid from obliquely below to the blade portion provided along the circumferential direction of the workpiece, and the positions of the convex portion of the workpiece and the concave portion of the mounting table are aligned. A fitting method comprising: an alignment step. After the positioning step, by lifting and lowering the workpiece placed on the mounting table, the workpiece is horizontally placed on the mounting table to fit the convex portion of the workpiece and the concave portion of the mounting table. The fitting method according to claim 5, further comprising a fitting step. A balance measurement method for measuring the balance of a workpiece,
A balance measurement method, comprising: fitting a workpiece onto a mounting table that is a turntable that is rotatable in a horizontal direction by the fitting method according to claim 4. Measuring the balance of the workpiece by the balance measurement method according to claim 7;
And a step of correcting the balance of the workpiece when unbalanced.

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