JP2010194631A - Setting assisting device for centerless grinding machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a setting assisting device for a centerless grinding machine allowing a worker to recognize the state of a workpiece pass line accurately even if the worker is not a skilled worker, and to set up proper grinding work procedures in a short time. <P>SOLUTION: The setting assisting device 1 for the centerless grinding machine is provided with a swivel angle adjusting mechanism 12 capable of adjusting a swivel angle being an inclination of a regulating wheel for a grinding wheel within a substantially horizontal reference plane. The setting assisting device is also provided with a regulating wheel tangent shape obtaining means 35 for obtaining a tangent shape formed by a workpiece and the regulating wheel when the workpiece passes between the grinding wheel and the regulating wheel and a workpiece pass line visualizing means 34 for visualizing and outputting the tangent shape for the grinding wheel and its inclination based on the swivel angle detected by a swivel angle detection means 26 and the tangent shape obtained by the regulating wheel tangent shape obtaining means 35. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an apparatus that supports various settings such as an adjustment wheel shape and a swivel angle when through feed grinding is performed by a centerless grinding machine.

  When performing through-feed grinding with a centerless grinder, the adjusting wheel is inclined at a predetermined angle with respect to the axis of the workpiece in order to give an axial thrust to the workpiece, and the workpiece is placed on the adjusting wheel. It is necessary to truing the adjusting wheel into a one-leaf rotating hyperboloid so as to move in contact with the entire length.

  In the case of through-feed grinding with a centerless grinder, it is very important to set the path (work path line) of the workpiece formed between the grinding wheel and the adjustment wheel with high accuracy. Importantly, the shape of the work path line is determined by the shape of the grinding wheel, the tangent shape between the workpiece and the adjustment wheel (hereinafter referred to as the adjustment wheel tangent shape), and the swivel angle of the adjustment wheel relative to the grinding wheel ( (Tilt angle in a substantially horizontal reference plane). That is, in order to perform high-precision machining by through-feed grinding with a centerless grinding machine, for example, the grinding wheel is trued into a predetermined shape and adjusted in consideration of the machining allowance of the workpiece, the spark-out width at the exit, etc. It is necessary to adjust the swivel angle to an appropriate value by truing the adjustment vehicle so that the vehicle tangent shape is a predetermined medium-high shape (a shape in which the central portion is swollen).

  Here, when truing the adjustment vehicle, conventionally, the operator manually adjusts the dress correction angle and the diamond movement amount on the adjustment vehicle dressing device so as to obtain a desired adjustment vehicle shape. The adjustment work takes time, and since it is a visual adjustment, there is a problem that variations are likely to occur for each operator or for each operation. Furthermore, if the adjustment wheel diameter changes, the adjustment vehicle tangent shape changes, so check the work path line with the change of the adjustment wheel diameter, and if necessary, such as dress correction angle and diamond movement amount Although it is necessary to redo the adjustment, it is practically difficult to carry out such readjustment at the actual site, which has been a cause of deterioration in machining accuracy.

  Therefore, for example, in the invention described in Patent Document 1 or Patent Document 2, the dress correction angle and the diamond movement amount are not manually adjusted with respect to the adjusting wheel dressing device, but are adjusted based on various condition parameters such as the workpiece diameter. By calculating corrected shape data (two-dimensional coordinate data composed of an axial position and a radial position) along the axis of the vehicle and controlling the adjustment vehicle dressing device based on the corrected shape data, the adjusted vehicle Even if the diameter changes, it is possible to perform truing with high accuracy with the tangent shape of the adjustment vehicle being constant.

JP 59-227360 A JP 2000-263438 A

  However, since it is not easy to imagine the adjustment vehicle tangent shape or the work path line from the adjustment wheel shape after truing, for example, the inexperienced worker is, for example, the positional relationship of the grinding wheel, adjustment vehicle, workpiece and blade. Grinding between skilled and non-skilled workers who cannot accurately recognize what the work path line will look like and how the work path line will specifically change before and after swivel angle adjustment It was a factor that caused a difference in setup.

  The present invention has been made in view of such conventional problems, and can accurately recognize the state of the work path line even if it is not an expert, and perform appropriate grinding setup in a short time. An object of the present invention is to provide a setting support device for a centerless grinder capable of performing the above.

  The present invention comprises a blade and a grinding wheel and an adjustment wheel that are arranged so as to face each other on the upper side of the blade and are driven to rotate in a predetermined direction, and the workpiece supported by the blade and the adjustment wheel is It is configured to grind the outer peripheral surface by the grinding wheel while rotating around the axis by the adjusting wheel, and the adjusting wheel has an axis centered on the axis of the workpiece so as to give an axial driving force to the workpiece. A swivel angle adjusting mechanism that is tilted with respect to the outer peripheral surface and has a single-leaf rotating hyperboloid, and that can adjust a swivel angle that is an inclination of the adjusting wheel with respect to the grinding wheel within a substantially horizontal reference plane. A centerless grinding machine setting support device for obtaining a tangential shape of an adjustment vehicle for obtaining a tangential shape between the workpiece and the adjustment wheel when the workpiece passes between the grinding wheel and the adjustment wheel. Means, Visualizing means for visualizing and outputting the tangential shape and its inclination with respect to the grinding wheel based on the swivel angle detected by the ibel angle detecting means and the tangential shape acquired by the adjusting wheel tangent shape acquiring means. It is provided.

  According to the present invention, the state of the work path line can be accurately recognized without being an expert, and appropriate grinding setup can be performed in a short time without repeating trial and error.

1 is an overall front view of a centerless grinding machine showing an embodiment of the present invention. It is a whole top view of the centerless grinding machine. It is the schematic which shows the work path line between a grinding wheel and an adjustment wheel. It is explanatory drawing of the various input parameters and dress shape data regarding an adjustment vehicle dress. It is a block diagram which shows schematic structure of the setting assistance apparatus of a centerless grinding machine. (A) is a block diagram which shows schematic structure of an adjustment vehicle dress control apparatus, (b) is a figure which shows the correspondence of an adjustment parameter, medium-high quantity, and each condition parameter. It is a flowchart (first half) of the setting assistance process by a setting assistance apparatus. It is a flowchart (second half) of the setting assistance process by a setting assistance apparatus. It is a figure which shows the example of a display of a 1st screen. It is a figure which shows the example of a display of a 2nd screen.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1-10 illustrate one embodiment of the present invention. The setting support apparatus 1 (FIG. 5) according to the present embodiment supports an operator for various settings performed on the centerless grinding machine 2 shown in FIGS. First, a schematic configuration of the centerless grinding machine 2 will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the centerless grinding machine 2 includes a blade 3 and a grinding wheel 4 and an adjustment wheel 5 arranged so as to face each other on the upper side of the blade 3, and the blade 3 and the adjustment wheel 5. The outer peripheral surface is ground by the grinding wheel 4 while rotating, for example, the columnar workpiece W supported by the wheel 5 around the axis by the adjusting wheel 5.

  The grinding wheel 4 is rotatably supported around a horizontal axis center by, for example, a grinding wheel platform 7 fixed on the bed 6 so as not to move, and is rotated in a predetermined direction (clockwise in FIG. 1) by a driving means (not shown). It is designed to be driven. The adjusting wheel 5 is disposed so as to face the grinding wheel 4 and is supported by the adjusting wheel base 8 so as to be rotatable around the horizontal axis, and is rotated in a predetermined direction (clockwise in FIG. 1) by a driving means (not shown). It is designed to be driven.

  The adjusting carriage base 8 is fixed on the upper slide base 9, and the upper slide base 9 can be adjusted in the direction perpendicular to the axis of the grinding wheel 4 on the lower slide base 10 below (the left-right direction in FIG. 1). It is supported by. A blade 3 is fixed on the lower slide base 10 between the grinding wheel 4 and the adjustment wheel 5 so that the height can be adjusted. That is, the distance between the blade 3 and the adjustment wheel 5 can be adjusted by sliding the upper slide table 9 with respect to the lower slide table 10.

  The lower slide base 10 is supported on the lower swivel base 11 so that the position of the lower slide base 10 can be adjusted in a direction perpendicular to the axis of the grinding wheel 4 (left and right direction in FIG. 1). That is, the distance between the blade 3 and the adjustment wheel 5 and the grinding wheel 4 can be adjusted by sliding the lower slide base 10 with respect to the swivel base 11.

  The swivel base 11 is supported on the bed 6 so as to be swingable in a horizontal plane (reference plane) around the turning center 0, and a swing position thereof can be adjusted by a swivel angle adjusting mechanism 12. That is, for example, by manually operating the operation portion 12a of the swivel angle adjustment mechanism 12 in the forward direction or the reverse direction and swinging the swivel base 11 with respect to the bed 6 in a horizontal plane, That is, it is possible to adjust an angle (hereinafter simply referred to as a swivel angle) formed by an adjustment axle center and a grinding wheel axle center in a horizontal plane.

  For example, two displacement sensors 13a and 13b are arranged on the bed 6 at a predetermined interval. These displacement sensors 13a and 13b are configured to measure the distance between a predetermined reference position on the bed 6 side and a position to be measured on the swivel base 11 side (here, the side surface 11a of the swivel base 11). Since the distance between the displacement sensors 13a and 13b is constant, the swivel angle can be obtained based on the difference between the measured values. The displacement sensors 13a and 13b may employ any type such as a contact type or a non-contact type.

  Further, for example, a grinding wheel dressing device 14 and an adjusting wheel dressing device 15 are mounted on the grinding wheel carriage 7 and the adjustment carriage stand 8, respectively. In the adjustment wheel dressing device 15 of the present embodiment, the dresser 15a is disposed along the radial direction Y of the adjustment wheel 5, and the adjustment wheel dress control device 21 (FIGS. 5 and 6A) described later is used. The amount of movement in the Y direction (cutting direction) and the amount of movement in the X direction (traverse direction) parallel to the axis of the adjusting wheel 5 are controlled by the control.

  3 and 4 schematically represent a state in which through-feed grinding is performed by the centerless grinding machine 2. The center of the grinding wheel 4 is substantially horizontal, whereas the axis of the adjustment wheel 5 is arranged in a downwardly inclined manner, whereby an axial propulsive force is applied to the workpiece W. ing. Since the workpiece W is fed in such a state that its axis is not parallel to the axis of the adjustment wheel 5 in this way, in order to send the workpiece W while contacting the adjustment wheel 5 over its entire length, the adjustment wheel 5 The shape of must be a so-called single-leaf rotating hyperboloid.

  In addition, the path of the workpiece W between the grinding wheel 4 and the adjusting wheel 5, that is, the shape of the work path line L is very important for machining the workpiece W with high accuracy. The shape of is greatly changed depending on the tangent shape (adjustment wheel tangent shape) between the adjustment wheel 5 and the workpiece W and the swivel angle. Therefore, in order to perform high-precision machining, it is necessary to generate an appropriate adjustment vehicle tangent shape by truing the adjustment wheel 5 and to adjust the swivel angle to an appropriate value.

  It is the setting support device 1 (FIG. 5) of this embodiment that assists the operator to appropriately generate the adjustment vehicle tangent shape by truing the adjustment vehicle 5 and adjust the swivel angle. Hereinafter, the setting support device 1 will be described in detail. Before that, (1) generation of an appropriate adjustment vehicle tangent shape by truing of the adjustment vehicle 5 and (2) adjustment of the swivel angle are briefly described. explain.

(1) Generation of an appropriate adjustment vehicle tangent shape by truing the adjustment vehicle 5 When considering machining allowance, spark-out width at the exit, etc., the adjustment vehicle tangent shape is shown in FIG. It is desirable to have a bulging medium-high shape. In the centerless grinding machine 2 of the present embodiment, the operator does not manually adjust the dress correction angle and the diamond movement amount of the adjusting wheel dressing device as in the prior art, but the dress shape data is automatically generated to adjust the dressing wheel dressing device 15. The adjustment wheel dress control device 21 (FIGS. 5 and 6A) for controlling the vehicle is provided, and the operator only inputs the values necessary for generating the dress shape data, that is, the desired medium / high amount and various condition parameters. It is configured so as to be sufficient.

  As shown in FIG. 6 (a), the adjustment vehicle dress control device 21 has an input means 22 for inputting a medium / high quantity and various condition parameters, and a medium / high quantity and various condition parameters input from the input means 22. Adjustment parameter calculation means 23 for calculating adjustment parameter values, that is, dress correction angle and diamond movement amount, and dress shape data generation means 24 for generating dress shape data from adjustment parameter values obtained by the adjustment parameter calculation means 23. And dress control means 25 for controlling the adjustment wheel dressing device 15 based on the dress shape data.

  The values input from the input means 22 are four kinds of condition parameters such as the adjustment vehicle inclination angle, the center height, the adjustment wheel diameter, and the workpiece diameter, in addition to the medium-high amount in the adjustment vehicle tangent shape (see FIG. 4). Here, the adjustment wheel diameter, which is one of the condition parameters, is automatically set for each dress according to the cutting amount of the adjustment wheel dressing device 15 by the dress control means 25.

  In the adjustment parameter calculation means 23, as shown in FIG. 6B, the diamond movement amount is calculated based on the center height, the adjustment wheel diameter and the workpiece diameter inputted from the input means 22, and this diamond movement amount and input The dress correction angle is calculated based on the adjusted adjustment wheel inclination angle, adjustment wheel diameter, and medium / high amount. Thereby, the shape (single-leaf rotating hyperboloid) of the adjustment wheel 5 to be obtained by truing is specified numerically.

  In the dress shape data generation means 24, the dress shape data along the axis of the adjustment wheel 5, that is, the axial position X, based on the dress correction angle and the diamond movement amount obtained by the adjustment parameter calculation means 23. A two-dimensional coordinate data group X1Y1, X2Y2, X3Y3,... (See FIG. 4B) formed by the radial position Y is generated. Since the shape of the adjustment wheel 5 is specified by the values of the dress correction angle and the amount of diamond movement, in order to obtain dress shape data along the axis of the adjustment wheel 5, the adjustment wheel shape can be obtained by a plane passing through the axis. What is necessary is just to obtain | require the cut cross-sectional shape. Then, based on the dress shape data obtained by the dress shape data generating means 24, the dress control means 25 controls the traversing amount and the cutting amount of the adjusting vehicle dressing device 15, so that the adjusting vehicle tangent shape is a desired medium-high shape. The tuned vehicle is trued so that

(2) Adjustment of swivel angle In order to set an appropriate work path line L, it is not sufficient to generate the adjusted vehicle tangent shape to a desired medium-high shape, and it is necessary to adjust the swivel angle to an appropriate value ( (See FIG. 3). The centerless grinding machine 2 of the present embodiment measures the distance between the reference position on the bed 6 side and the position to be measured on the swivel base 11 side in addition to the swivel angle adjustment mechanism 12 that can manually adjust the swivel angle. The two displacement sensors 13a and 13b are arranged at predetermined intervals (FIGS. 1 and 2), and the swivel is based on the measured values by the two displacement sensors 13a and 13b and the distance (constant) between the displacement sensors 13a and 13b. Swivel angle detecting means 26 (FIG. 5) for calculating the angle is provided.

  Since the swivel angle is obtained based on the measured values of the two displacement sensors 13a and 13b as described above, the swivel angle is always accurate without being affected by the backlash of the turning center and the deflection of each part. Can be detected.

  Next, the configuration and operation of the setting support apparatus 1 shown in FIG. 5 will be described. The setting support apparatus 1 includes an input support unit 31 that supports input of various values, a swivel angle optimum range calculation unit 32 that obtains an optimum range of swivel angles, and a swivel angle adjustment support unit 33 that supports swivel angle adjustment. The work path line visualization means (visualization means) 34 for visualizing the shape of the work path line L, the adjustment vehicle tangent shape acquisition means 35 for acquiring the adjustment vehicle tangent shape and the like from the adjustment vehicle dress control device 21, and the grinding wheel dress control Grinding wheel shape obtaining means 37 for obtaining the grinding wheel shape and the like from the device 36, touch panel type display means 38 for performing image output and data input, and display control means 39 for controlling image output to the touch panel type display means 38. And. The input support means 31 includes an input request unit 41, a center height determination unit 42, a blade height determination unit 43, a grindstone blade gap determination unit 44, and the like.

  Hereinafter, the processing operation by the setting support apparatus 1 will be described according to the flowcharts of FIGS. 7 and 8 with reference to specific examples of the screen display shown in FIGS. In the setting support process by the setting support device 1, first, the first screen D1 (FIG. 9) is displayed on the touch panel display 38 (S1). The first screen D1 includes input areas 51 to 53 for inputting a workpiece diameter, a workpiece length, and a center height, an input confirmation display area 54 for schematically displaying these input values, a grindstone width, Input areas 55 and 56 for inputting medium and high amounts, input confirmation display areas 57 for schematically displaying these input values, selection display areas 58 and 59 for selecting the adjustment vehicle tilt direction and the adjustment vehicle shape, respectively. An input area 60 for inputting the adjustment wheel inclination angle, display areas 61 and 62 for displaying the grinding wheel diameter and the adjustment wheel diameter, and the like are provided.

  Then, with this first screen D1 being displayed, the workpiece diameter, workpiece length, center height, grinding wheel width, medium / high amount, adjusting wheel inclination direction, adjusting wheel shape, adjusting wheel inclination angle, etc. are sequentially input. Accepted (S2-S4, S7-S11). Here, for items that require numerical input, such as workpiece diameter, workpiece length, center height, etc., the input request unit 41 of the input support means 31 causes each input area 51-53 on the first screen D1. It is desirable to assist the operator in inputting numerical values by causing the cursor to blink, etc., and outputting a display prompting numerical input such as “Please input workpiece diameter” to a predetermined position on the first screen D1. . Further, if a numeric keypad image is displayed on the touch panel type display means 38 as necessary, it is not necessary to mount a numeric keypad as hardware.

  In addition, in the input confirmation display area 54, axial sectional views of the grinding wheel 4, the adjustment wheel 5, the blade 3 and the workpiece W are schematically displayed, and the workpiece diameter and workpiece input to the input areas 51 to 53 are displayed. The length and center height values are displayed on the schematic diagram. Similarly, in the input confirmation display area 57, a plan sectional view of the grinding wheel 4, the adjustment wheel 5, and the blade 3 is schematically displayed, and the values of the grinding wheel width and medium / high amount input to the input areas 55 and 56 are displayed as the values. It is displayed on the schematic.

  In addition, the input request unit 41 uses a plurality of icon images 58 a, 58 b, 59 a, and so on corresponding to the choices such as the adjustment vehicle tilt direction (S 9) and the adjustment vehicle shape (S 10). 59b is displayed on each of the selection display areas 58 and 59, and a display for prompting a selection input such as “Please touch any one” is output to a predetermined position on the first screen D1 and selected (touched). For example, it is desirable to support selection input by an operator by highlighting an icon image, for example.

  Further, when the center height value is input to the input area 53 (S4), the center height determination unit 42, for example, checks the change in the center height angle in the effective use range of the grinding wheel diameter and the adjustment wheel diameter. The center height angle when the grinding wheel diameter and the adjustment wheel diameter are the maximum value and the minimum value determined in the machine specifications is calculated (S5), and the result is displayed in the display area 63 on the input confirmation display area 54, for example. The

  Based on the obtained center height angle, the center height determination unit 42 determines whether or not the center height is within a preset appropriate range (S6). For example, if the center height is not within the proper range, A display prompting re-input of the center height such as “It seems that the center height is low. Do you want to continue the work?” Is output to a predetermined position on the first screen D1, and the processes after S4 are executed again. It has become.

  When the input of the workpiece diameter, the workpiece length, the center height, the grindstone width, the medium-high amount, the adjusting wheel inclination direction, the adjusting wheel shape, and the adjusting wheel inclination angle is completed (S12: Yes), for example, the first screen D1. On condition that the start buttons 64 and 65 displayed above are operated, truing of the grinding wheel 4 under the control of the grinding wheel dress control device 36 and adjustment wheel 5 under the control of the adjusting wheel dress control device 21 as necessary. Truing is executed (S13).

  Here, the truing of the grinding wheel 4 may not be performed when the grinding wheel diameter is already clear. Further, the truing of the adjustment wheel 5 may be performed only when any one of the workpiece diameter, the center height, the grindstone width, the medium / high amount, the adjustment wheel inclination direction, the adjustment wheel shape, and the adjustment wheel inclination angle is changed. Note that the control process of the adjustment wheel dress control device 21 at this time is as described above, whereby the adjustment wheel 5 is corrected to a one-leaf rotation hyperboloid shape in which the adjustment vehicle tangent shape is a predetermined middle-high shape.

  When the truing (S13) of the grinding wheel 4 and the adjustment wheel 5 is completed, the grinding wheel after truing from the grinding wheel dress control device 36 and the adjustment wheel dress control device 21 by the grinding wheel shape acquisition means 37 and the adjustment wheel tangent shape acquisition means 35. The diameter and the adjustment wheel diameter are acquired and displayed in the display areas 61 and 62, respectively.

  When the above processing is completed, for example, on the condition that the next page button 66 displayed on the first screen D1 is operated, the display screen of the touch panel display means 38 changes from the first screen D1 to the second screen D2 (FIG. 10) (S14). In the second screen D2, input areas 71 to 74 for inputting the blade apex angle, the wheel center height, the adjusted blade height, and the adjusted grindstone blade gap, and their input values are schematically displayed. An input confirmation display area 75, display areas 76 and 77 for displaying the optimum blade height and optimum grinding wheel blade gap, a display area 78 for outputting a work path line display image P1 and a swivel angle adjustment support display image P2, respectively. 79 etc. are provided.

  Then, in the state where the second screen D2 is displayed, the blade apex angle and the grinding wheel axis height are sequentially received (S15, S16). Here, the grinding wheel shaft center height is a distance from a predetermined blade height measurement reference position to the shaft center of the grinding wheel 4 and is input as a dimension on the drawing. When the values of the blade apex angle and the grinding wheel axis height are input to the input areas 71 and 72, the blade height determination unit 43 calculates the blade height value, and the display area 76 displays the blade height. Is displayed (S17), and the input of the measured value of the adjusted blade height to the input area 73 is accepted (S18).

  At this point, the workpiece diameter, center height, grinding wheel diameter, and adjustment wheel diameter values have already been input, so that the positional relationship between the grinding wheel 4, the workpiece W, and the adjustment wheel 5 has been determined. The blade height can be obtained when the value of the blade apex angle is input in S15 (S17), but there is a difference between the actual blade height and the calculated blade height due to an error in setting. Since this often occurs, the measured value of the blade height is input in S18.

  When an actual measured value of the adjusted blade height is input to the input area 73, based on the value, the blade height determination unit 43 calculates a gap between the grinding wheel 4 and the blade 3 (hereinafter referred to as a grinding wheel blade gap). Whether or not the blade height is appropriate is determined based on whether or not the grindstone blade gap is within the appropriate range (S20).

  That is, when the value of the obtained grinding wheel blade gap is smaller than the appropriate range, there is a risk that the grinding wheel 4 and the blade 3 may interfere with each other. In order to avoid this, it is necessary to lower the blade height. In addition, when the value of the grindstone blade gap is too large, the workpiece W comes into contact with the vicinity of the tip of the blade 3 and the blade rigidity is lowered and the grinding accuracy is deteriorated. Need to increase blade height.

  If it is determined in S20 that the blade height is not appropriate (S20: No), the blade height is "blade height is out of tolerance. Please lower (up) the blade height." Is displayed at a predetermined position on the second screen D2 (S21), and the processes after S18 are executed again.

  Further, the value of the grindstone blade gap is calculated by the grindstone blade gap determination unit 44, and a display for prompting adjustment to the grindstone blade gap is output to the display area 77 (S22), and the adjusted grindstone to the input area 74 is output. An input of an actual measurement value of the blade gap is accepted (S23).

  In addition, in the input confirmation display area 75, axial sectional views of the grinding wheel 4, the adjustment wheel 5, the blade 3 and the workpiece W are schematically displayed, and the blade apex angle and the grinding wheel axis input to each of the input areas 71 to 74 are displayed. Each value of the center height, the adjusted blade height, and the adjusted grindstone blade gap is displayed on the schematic diagram.

  Subsequently, the shape of the grinding wheel 4 acquired from the grinding wheel dress control device 36 by the grinding wheel shape acquisition means 37, the adjustment wheel tangent shape acquired from the adjustment wheel dress control device 21 by the adjustment wheel tangent shape acquisition means 35, and Based on the swivel angle and the like obtained from the swivel angle detection means 26, the work path line display image P1 is output on the display area 78 by the work path line visualization means 34 (S24).

  In this work path line display image P1, the grinding wheel shape (cross-sectional shape along the axis of the grinding wheel) and the adjustment wheel tangent shape are opposed to each other in accordance with the actual positional relationship between the grinding wheel and the adjustment wheel. The adjustment vehicle tangent shape is displayed with an inclination corresponding to the swivel angle obtained from the swivel angle detection means 26. By such a work path line display image P1, even an unskilled person can easily recognize the state of the work path line L that is difficult to imagine from the actual adjustment vehicle shape or the like.

  Further, the optimum swivel angle range is calculated by the swivel angle optimum range calculation means 32, and the swivel angle adjustment support means 33 is based on the optimum swivel angle range and the actual swivel angle obtained from the swivel angle detection means 26. As a result, the swivel angle adjustment support display image P2 is output on the display area 79 (S25). The swivel angle adjustment support display image P2 includes, for example, a swivel angle setting state display image P2a that visually represents the relationship between the actual swivel angle value V and the optimum range Va, and a swivel angle that indicates the adjustment direction of the swivel angle. It consists of an adjustment direction instruction image P2b.

  In the swivel angle setting state display image P2a, for example, the optimum range Va of the swivel angle is clearly shown on the number line, and for example, a band-shaped image showing the actual swivel angle value V obtained from the swivel angle detection means 26 is shown. It is displayed on the number line. Further, in the swivel angle setting state display image P2a, whether or not the swivel angle value V is within the optimum range Va so that it can be more intuitively recognized whether or not the swivel angle value V is within the optimum range Va. The display state of the image indicating the swivel angle, for example, the color of the belt-like image is changed (for example, red when the swivel angle value V is outside the optimum range Va, and green when the swivel angle value V is within the optimum range Va). ing.

  Further, in the swivel angle adjustment direction instruction image P2b, an image of the operation unit 12a of the swivel angle adjustment mechanism 12 is displayed, for example, in a three-dimensional manner, and an operation direction for bringing the swivel angle value V closer to the optimum range Va is shown. An arrow or the like is displayed.

  Further, when the operation unit 12a is operated and the detection value by the swivel angle detecting means 26 changes, the swivel angle display state in the swivel angle setting state display image P2a and the adjustment in the work path line display image P1 accordingly. The inclination of the vehicle tangent shape is immediately updated.

  As described above, the setting support device 1 of the centerless grinding machine 2 according to the present embodiment is tangent between the workpiece W and the adjusting wheel 5 when the workpiece W passes between the grinding wheel 4 and the adjusting wheel 5. Based on the adjusted vehicle tangent shape acquisition means 35 for acquiring the adjusted vehicle tangent shape which is the shape, the swivel angle detected by the swivel angle detection means 26 and the adjusted vehicle tangent shape acquired by the adjusted vehicle tangent shape acquisition means 35 Further, since the work path line visualization means 34 for visualizing and outputting the tangent shape of the adjustment wheel and the inclination thereof with respect to the grinding wheel 4 is provided, the state of the work path line L can be accurately recognized even by a non-expert. It is possible to perform appropriate grinding setup in a short time without repeating trial and error.

  In addition, when the detection value by the swivel angle detection means 26 changes due to the swivel angle adjustment by the swivel angle adjustment mechanism 12, the work path line visualization means 34 immediately updates the visualization output content, that is, the work path line display image P1. Therefore, the change of the work path line L due to the adjustment of the swivel angle can be recognized in real time.

  In addition, the swivel angle optimum range calculating means 32 for calculating the optimum range Va of the swivel angle with respect to the adjusted vehicle tangent shape, the swivel angle V obtained by the swivel angle detecting means 26 and the optimum range obtained by the swivel angle optimum range calculating means 32. A swivel angle adjustment support means 33 for outputting a swivel angle setting state display image P2a showing a relationship with the range Va. The swivel angle adjustment support means 33 is a swivel angle detection means by adjusting the swivel angle by the swivel angle adjustment mechanism 12. 26, the output content, that is, the swivel angle setting state display image P2a is immediately updated. Therefore, even a non-expert can easily adjust the swivel angle to the optimum range. .

  The adjustment vehicle tangent shape acquisition means 35 acquires the adjustment vehicle tangent shape from the adjustment vehicle dress control device 21 that controls the adjustment vehicle dressing device 15 to truing the adjustment wheel 5 so that the adjustment vehicle tangent shape becomes a predetermined middle-high shape. Therefore, the adjusted vehicle tangent shape after truing can be obtained easily and accurately.

  The adjusting wheel 5 is disposed on a swivel base 11 that can swing around a predetermined turning center 0 in a horizontal plane (reference plane) with respect to the bed 6, and the swivel angle adjusting mechanism 12 is provided on the swivel base 11 with respect to the bed 6. The swing position is adjustable, and two displacement sensors 13a and 13b for measuring the distance between the reference position on the bed 6 side and the position to be measured on the swivel base 11 side are provided, and the swivel angle detecting means 26 is the displacement sensor. Since the swivel angle is obtained based on the measurement values of 13a and 13b, it is possible to always detect the accurate swivel angle without being affected by the backlash of the turning center and the deflection of each part. .

  Further, instead of manually adjusting the dress correction angle and the diamond movement amount with respect to the adjustment wheel dressing device 15, the correction shape data along the axis of the adjustment wheel 5 is calculated based on various parameters such as the workpiece diameter, Since the adjustment wheel dressing device 15 is automatically controlled based on the corrected shape data, it is possible to automatically determine the approach position and minimize the dresser idling even when the adjustment wheel shape changes greatly.

  Furthermore, since all the setup states are digitized, it is easy to automate all adjustments such as blade height and swivel angle.

  As mentioned above, although embodiment of this invention was illustrated, this invention is not limited to this embodiment, A various change is possible in the range which does not deviate from the meaning of this invention. For example, the centerless grinding machine 2 only needs to be able to adjust the relative positional relationship between the grinding wheel 4, the adjustment wheel 5, and the blade 3 in addition to the swivel angle, and the specific configuration can be arbitrarily changed. For example, the blade 3 may be fixed on the swivel base 11 or the bed 6, and the adjustment chassis 7 may be slidably adjustable with respect to the bed 6.

  The detection of the swivel angle is preferably performed based on the outputs of a plurality of (for example, two) displacement sensors 13a and 13b as in the embodiment, but is not limited to this, and a minimum detection accuracy is ensured. Arbitrary swivel angle detection means can be used as far as possible. Of course, if difficult problems such as mounting and maintenance can be solved, it is ideal to directly measure the swivel angle by incorporating an angle detection device such as an encoder in the turning center. Note that the swivel angle detection means shown in the embodiment can also be used effectively in in-feed grinding.

  The displacement sensor may be of a type in which the transmission side and the reception side are separated. In this case, a plurality of sets of transmission and reception sides may be provided.

  In the embodiment, the swivel angle is adjusted by swinging the adjustment wheel 5 with respect to the fixed grinding wheel 4, but the adjustment wheel 5 is fixed and the grinding wheel 4 is swung. Needless to say, the grinding wheel 4 and the adjustment wheel 5 may be swingable together.

0 turning center 1 setting support device 2 centerless grinding machine 3 blade 4 grinding wheel 5 adjusting wheel 6 bed 11 swivel base 12 swivel angle adjusting mechanism 13a displacement sensor 13b displacement sensor 15 adjusting wheel dressing device 21 adjusting wheel dress control device 26 swivel angle detection Means 32 Swivel angle optimum range calculation means 33 Swivel angle adjustment support means 34 Work path line visualization means (visualization means)
35 Adjusting vehicle tangent shape acquisition means W Workpiece

Claims (6)

A blade, and a grinding wheel and an adjustment wheel which are arranged so as to face each other on the upper side of the blade and are driven to rotate in a predetermined direction, and a workpiece supported by the blade and the adjustment wheel is pivoted by the adjustment wheel. The outer peripheral surface is ground by the grinding wheel while rotating around, and the adjusting wheel is tilted with respect to the axis of the workpiece so as to give an axial thrust to the workpiece. A centerless grinding machine provided with a swivel angle adjusting mechanism whose outer peripheral surface is formed into a single-lobed hyperboloid and capable of adjusting a swivel angle that is an inclination of the adjusting wheel with respect to the grinding wheel in a substantially horizontal reference plane. An adjustment wheel tangent shape acquisition means for acquiring a tangent shape between the workpiece and the adjustment wheel when the workpiece passes between the grinding wheel and the adjustment wheel, and a swivel Corner Visualizing means for visualizing and outputting the tangential shape and its inclination with respect to the grinding wheel based on the swivel angle detected by the output means and the tangential shape acquired by the adjusting wheel tangent shape acquiring means. A centerless grinding machine setting support device. The visualization means is configured to immediately update the visualization output content when the detection value by the swivel angle detection means changes due to the adjustment of the swivel angle by the swivel angle adjustment mechanism. The centerless grinding machine setting support device according to claim 1. The swivel angle optimum range calculating means for calculating the optimum range of the swivel angle with respect to the tangential shape, and the relationship between the swivel angle obtained by the swivel angle detecting means and the optimum range obtained by the swivel angle optimum range calculating means The swivel angle adjustment support means outputs the output content when the detection value by the swivel angle detection means changes due to the adjustment of the swivel angle by the swivel angle adjustment mechanism. The centerless grinding machine setting support device according to claim 1, wherein the centerless grinding machine setting support device is configured to update the centerless grinding machine. The adjustment vehicle tangent shape acquisition means acquires the tangent shape from an adjustment vehicle dress control device that controls the dressing device of the adjustment vehicle so as to trude the adjustment vehicle so that the tangent shape becomes a predetermined middle-high shape. The centerless grinding machine setting support device according to any one of claims 1 to 3, wherein the centerless grinding machine is configured as follows. The adjusting wheel is disposed on a swivel base that can swing around a predetermined turning center within the reference plane with respect to the bed, and the swivel angle adjusting mechanism adjusts the swing position of the swivel base with respect to the bed. A sensor configured to measure a distance between a reference position on the bed side or the swivel base side and a position to be measured on the swivel base side or the bed side, and the swivel angle detection unit is a measurement value of the sensor. The centerless grinding machine setting support device according to any one of claims 1 to 4, wherein the swivel angle is obtained on the basis of the center angle grinding machine. 6. The centerless grinding machine setting support device according to claim 5, wherein a plurality of the sensors are arranged at predetermined intervals.

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