JPS59219156A - Setting method of grinding position in tool grinder and device thereof - Google Patents

Abstract

PURPOSE:To make a grinding position settable accurately and speedily, yet without necessitating any specific skillfulness, by utilizing a tool reference plane performed in a tool grinder for grinding position setting and a length measuring instrument. CONSTITUTION:A tool grinder installs a tool reference plane R1 and a level reference plane R2 projected horizontally from a first saddle 20 in the end face of a headstock 18 of a work head operating part 12. With these reference planes R1 and R2 and given size of both sides of the work head operating part 12 and a grinding wheel operating part 14, the specified reference size is calculated and finalized in advance. Next, the diametral size and axial length of a work T to be ground are all measured on the basis of these reference planes, and the setting size of a grinding position is calculated from those of reference and measuring sizes, while the work head operating part 12 or the grinding wheel operating part 14 is shifted to some extent, and setting of the grinding position takes place. Thus the grinding position can be set accurately and speedily without carrying out trial cutting.

Description

[Detailed description of the invention] Technical division The present invention relates to a method and device for setting the grinding position in a tool grinding machine, and in particular to a method and apparatus for setting the grinding position in a tool grinding machine, and in particular, the present invention relates to a method and apparatus for setting the grinding position in a tool grinding machine. This invention relates to an effective method and device for setting the grinding position in the direction of the divine axis.

In machining using conventional machine tools, the precision of machining depends largely on the dimensions and sharpness of the tool, and therefore tool grinding is an extremely important factor in improving machining yellowing. Recently, machine tools have been significantly automated, so machining'! 11 degrees is determined by tool accuracy as well as Seimaro Kanai, and the variation is large.
Therefore, it is necessary to improve tool accuracy and maintain it within a certain standard at the same time.
, there is a tendency for tool grinding to be performed automatically by NC tool grinding machines.

However, NCIJ! In a grinding machine, the initial setting of the grinding position of each tool to be ground, that is, the point of contact between the tool and the grinding wheel, is
Manually operating the table, saddle, or grinding wheel head of the grinding machine and making full use of measuring instruments such as gauges and doscans requires a lot of setup time and skill, and has the disadvantage of being inefficient. ing.

OBJECTS OF THE INVENTION Accordingly, an object of the present invention is to provide a method and apparatus for setting a grinding position in a tool grinding machine that can shorten the above-mentioned setting time and can also be linked with an NC device.

Structure and operation of the invention According to the present invention, in the method for setting the grinding position j in a tool grinder, a reference plane is formed in advance at the work head actuating part 11, and the reference plane and the work head actuating part side are formed in advance. A certain reference dimension is calculated and determined from the known dimensions of the operating part of the J grinding wheel.Next, the radial dimension and axial length of the workpiece to be ground are measured based on the reference plane. , Calculate the set dimensions of the grinding position from the fixed reference dimensions and the diameter and axial length of the workpiece measured above, and move the work head operation section, grinding wheel, and operating section according to the calculation results. A method for setting a grinding position in a tool grinder is provided, in which the grinding position is set between the workpiece to be ground and the grinding wheel j1f, and in a setting device for a grinding position device in the tool grinder, the grinding position is set between the workpiece to be ground and the grindstone j1f. A reference plane is formed on the bottom surface of the work head having the mounting shaft hole and a part of the movable saddle on which the work head is mounted, and when the work head is set on the reference plane, the counterfeit r#h is immediately moved along the scale graduation. What is the diameter of the workpiece to be ground and the length of the tool? Total? tt1. and a pulse signal output device installed in the measuring device to send out a pulse output based on the measurement result of the one tracing device,
The grinding position is calculated by a 79-value control device based on the known dimensions of the work head operating section and the grinding wheel operating section of the tool grinder, and the diameter dimension output of the workpiece to be ground and the tool length output sent from the pulse signal output device. A grinding position setting device in a tool grinding machine configured to determine the grinding position and command the work head actuator or the grinding wheel actuator to move to the grinding position is used.

However, the present invention has been disclosed in detail based on the embodiments shown in the accompanying drawings (
I will explain in 1.

FIG. 1 is a perspective view showing the main part of an NCT-kun grinding machine configured to carry out the grinding position setting method according to the present invention.

In FIG. 1, on the base 10, 1 is a work head actuating part 12 on which an additional issue of the first issue T to be ground is mounted, and a grinding wheel G (this example shows a double-headed example). The operating portions 14 are each movably provided. The work head operating section 12 includes a headstock 18 having a work P mounting shaft 16;
A first saddle 20 on which the headstock 18 is mounted, a second saddle 22 provided below the first saddle 20, and a rotary table 24 on which the second saddle 22 is mounted.

It is equipped with a sliding table 26 on which the rotary table 24 is placed. On the other hand, the grinding wheel operating section 14 includes a grinding wheel head 30 having a grinding wheel shaft 28, a grinding wheel head saddle 32, a rotating table 34 on which this grinding wheel head saddle 62 is mounted, and a Z on which this rotating table 34 is mounted. It is equipped with an axle stand 36. The above-mentioned work head actuating section 123. - and in the grinding wheel actuating section 14, a sliding table 26 is configured to be movable in the direction of the "X" axis shown in Figure 1, and thus the first, v;゛1B is the grinding wheel operating part 14
Perspective works can be compared with others. Also, turntable 2
4 is a gong against the floor. Straight vertical axis of rotation (rejected,
It is formed to be able to rotate in the direction of arrow W with respect to the sliding table 26 with respect to the sliding table 26. The second saddle 22 is formed to be movable in the U-axis direction indicated by the arrow "U" in the figure, and the first rotation table 24 is at the rotation origin (the position where the rotation angle in the W direction is zero) in the U-axis direction. Sometimes it coincides with X-lucidity. The first saddle 20 is formed so as to be movable in the moving direction of the second saddle 22 described above, that is, in the Y-axis direction indicated by the arrow ■, which is perpendicular to the U-axis direction. The headstock 18 is formed to be tiltable in the upward and downward image tone directions indicated by arrows ``02''.

The tool mounting shaft 16 is formed to be rotatable within the headstock 18 of the scale tool about its axis indicated by the arrow @A''.

In the grinding wheel operating section 14, the grinding wheel +j112B is capable of grinding rotation around its axis and is rotated as shown by the arrow ゛b゛°.
The bifurcated grindstone head saddle 32, in which the grindstone head 50 is formed to be able to rotate around an axis perpendicular to the axis of the grindstone +181128, is indicated by an arrow ``Y°'' perpendicular to the axis of the grindstone side 12B. It is movable in the Y-j direction, and this Y-axis direction is also a direction perpendicular to the moving direction of the sliding table 26, that is, the X-axis direction. The rotating table 34 is formed to rotate the grinding wheel head saddle 32 and the grinding wheel head 30 around a vertical axis indicated by an arrow "01" perpendicular to the floor surface, and the Z-axis table 36 is configured to rotate the grinding wheel head saddle 32 and the grinding wheel head 30 around a vertical axis indicated by an arrow "01" perpendicular to the floor surface. Axial direction.

In other words, it is formed to be movable up and down along the rotation axis of the rotary table 34. Therefore, it goes without saying that the grindstone head 30 moves up and down via the rotary table 34 and the grindstone head saddle 62 in response to the upward and downward movements of the 2M table 36.

In the tool grinding machine having the above-mentioned configuration, both the work head operating section 12% grinding wheel single production QIj+ section 14 are operated according to the A-program stored in advance in the NC device (not shown), so that the tool to be ground is II 71111 can be subjected to the desired grinding action using a grinding wheel O, and the operation of each of the above parts is performed according to the commands of the NC device.
is activated to produce the desired movement motion.゛Nao? 4
'i In the sword, Ml uses the grindstone @28 of the grindstone G as j
QI WE Driving motor, M2 is rad 50 to the grinding wheel
M3 is a motor that drives the grinder (gohead-reedle 32) in the Y-axis direction; Then, rotate the tool supplementary shaft 16 in the direction of arrow 0Δ°
Reference numeral 6 denotes a headstock 18″f: a motor for tilting the headstock up and down in the direction of arrow “C2”.

Ml is a Z) motor that drives the first saddle 20 in the direction V; Installation 1
-ru. In this case, the tool supplementary shaft 18 generally has a tapered hole ih, and the tool T to be ground is inserted into this tapered hole i'! I- Attached to the slide or via a tool holder.

Next, by moving each of the movable parts corresponding to the X-axis direction, U-axis direction, Y-axis direction, and Z-axis direction W1, the grinding wheel G starts grinding with respect to l"J T under the object to be ground. The setting of the grinding position in the so-called ``b ^ i 100 t'' is carried out as the step q * rr of the grinding work, which is determined by the point 19. Then, this Q Il + is applied to the lever setup 1 culm. ,
, In addition, the application of the present invention (, (1 hit).

To the work head operating part 12 of the grinding stone: 1. - A reference surface R, 1 is formed on the end surface of the headstock 1B, and protrudes horizontally from one end of the first saddle 20.
A single surface R2 is formed.

Next, F
A method of setting the grinding position in the forehead direction according to the present invention will be explained. In addition, in the setting of each grinding position in the linear direction, the rotation angles of both the rotation heads 24 and 34 in the W direction and the C1 direction are preset to zero positions.
．． Set the upper and lower inclination angles of 8 and the inclination angle of the grinding wheel head 30 in the ``b11 direction'' to zero positions.First, the method of setting the grinding position in the X-axis direction and the U-axis direction is shown in Fig. 2 to WE4. I will explain based on this.

! ! ! As shown in FIG. 2, when the tool T to be ground is mounted on the tool mounting shaft 16 of the headstock 18, the table 26 that moves in the X @ force direction and the second saddle 221 that moves in the U axis direction are connected to the grindstone head actuating section 14. have retreated to their respective origin positions on the machine that were far away from the machine. In this state, X
In order to set the grinding position in the axial and U-axis directions on the W-axis, the following operation is performed. That is, 1. The dimension "A" in Figure 2, that is, the distance from the spindle end face 1 of the headstock 18 to the end face of the grinding wheel G, has been measured in advance as a machine-specific dimension in the X-axis direction, and is also It is grasped as a known dimension as it is stored and set to.

In addition, the distance between the shaft axis and the spindle head 18's vertical end surface 1 = 1 is also measured in advance as a machine-specific dimension in the U-axis direction, and can be recorded and set using the same <NC device. It is understood as a known dimension. Therefore, the headstock 1
From the vertical reference plane R1 of No. 8 to the tip of the tool to be ground T! If you measure the dimension ``'C'' to IM', ~■ 1 on the axis line,
The moving distances of the table 26 and the second saddle 22 to the grinding position where the tip of the υf cutting tool T comes into close contact with the end face of the grinding wheel G are obtained by the following equations. In other words, the set movement distance of the table 26 in the X-axis direction E”=
A -B, -0-■ Second saddle 220 role fixed travel distance F in the UU axis direction! j “D”=B
-C・・・・・・■In addition, in the above-mentioned formulas ■ and ■, the cutting tool T is connected to the ball end mill (
It is set so that the center of the first shape-seeking part at the tip of the r side points east to the grinding position that coincides with the W axis.

Now, to measure the dimension "C" mentioned above, IT 3 jQ
jv and a measuring instrument 40 as shown in FIG.

These measuring instruments 40i, t: A scale 42 with a length graduation, and a well-known slider 44 that slides in one direction on this scale 42 and can digitally display the length. It is equipped with a knife-shaped measuring tip 46 attached to a slider 44, and a base 48 that holds the scale 42 and is fixed in a V-groove portion formed at the Takae part of the wave measurement section for length measurement. hand! In the present invention, 1 is formed on the top of the headstock 18 and 18a (clearly shown in FIG. 4) is formed in advance to have a cylindrical surface. Lr,
, and measure the length of the four parts of the headstock 18 regarding the grinder EL-11p++. As mentioned above, the slider 44 is formed so that it can digitally display the measured value and output it as a pulse signal.
By manually inputting the corresponding pulse signal to the C device, the NC device itself automatically performs the calculation a of the above-mentioned formula 7, and performs the calculation according to the calculation result in the song. It is also possible to automatically set the (0) cutting position by issuing a command to the corresponding drive motor of the sub-panel.The calculation of the 0 formula described in - should be performed automatically by the NC device and then stopped. 1 goes without saying.

Next, a method for setting the grinding position in the Y-axis and Z-axis directions of FIG. 1 will be explained based on FIGS. 35 and 6. In addition, in this case, it is made by a whetstone head! In the ltb section 14, the grinding wheel G
A method is adopted in which the blade 101 is brought close to the cutting tool T and set at the grinding position, and in this case, a method is adopted in which the moving distance of the center line of the grindstone shaft 28 is calculated. Therefore, when calculating the length of 8 ribs, the tool to be ground is
(/c also means that the diameter d of the grinding wheel G and the grinding wheel head 32° Z-axis table 66 have retreated to predetermined retreat positions by 1. In this condition, the distance between the center of the tool mounting shaft and the center of the grinding wheel shaft 28 (dimensions "G II, Z" in FIG.
)+l+direction 11 The three values (d, ('', F) of the dimension "F" in FIG. .j N
C: It goes without saying that it is possible to set the memory settings of the device 1c. This is shown in Fig. 1. From this reference plane R2 to
The distance H to the axis of the shaft 16 with 12 (see FIG. 6) is measured and grasped in advance as a value unique to the machine.

Ki01 cutting tool T for the known values specific to the machine mentioned above.
If the diameter of the tool 'r to be ground is measured by 11 degrees every f6, the set moving distance of the cutting position in the Y-axis direction and the Z-axis direction can be calculated using the following equations (2) and (2).

Yj same way (Setting 1 of grindstone head saddle 52) Travel distance G1-G-(/2 + 72) ...
・■ Setting movement of the Z-axis stand 56 in the Z-axis direction PjP
, Distance 1" = F-(D/2 10%) both... ■The measurement of the straight radius of the above-mentioned fracture <JI cutting tool is shown in Figure 6.
J<Suyorinako K f6 measurement 7 娨器5o is set to the reference plane R2, and is executed. This tool diameter measuring device 5o also has a slider 54 that can be freely slid and fixed along a scale 52 with a length scale on the ridge, and a knife attached to the slider 54. A base 5 that fixes the shaped measuring element 56 and the scale 52 on the measurement reference surface.
8. And; Ben Ida-54
digitally displays the quality dimension from the measurement reference surface, and preferably outputs the measured length dimension as a pulse output using the NC
＝It can be formed in such a way that it can be directly processed manually.

The tool diameter measuring device 5a as described above is attached to the first saddle 20,v.
, protrude from the surface, install it on the reference surface 2, and grind the workpiece.
When the measuring tip 56 is brought into contact with the outer diameter of Outer diameter of T]
Regarding JK, ”/2 no f direct k quick Ka, +E if
N Vel! ill 'r'1).

Therefore, +I of the tool diameter measuring device 50! lI is certain, from 1'i result ■ formula.

Set distance G1. based on formula 0. F'1 easily I
If you can sail and set up the NCC device, you can use it yourself.
It is also possible to do both. Sunawaji, I'J in advance
(G-d/) and (F-d/) stored in C device
) from 'L! /2
2.5 because it makes students perform the operation of subtracting 2 with pride. Then, based on the calculation result (8teN
By sending a command 14 from the C drive 17 to the corresponding drive motor of the knee grinder, setting of the grinding position in the Y-axis direction and the Z/forward direction can be achieved automatically and accurately.

In addition, Sugaishi East G is a cubic boron nitride whetstone, and where a diamond whetstone is used (is outside the whetstone, the wear on the end face of the whetstone is measured over a certain period of use L', 1. 16
It is convenient to ignore and therefore the measured values of IL et al. can be considered as constant values over a long period of time. Furthermore, when a certain period of time has elapsed, remeasurement and correction may be performed.

As is clear from the above description, according to the present invention,
, 1'1. ■ When setting the ωF cutting position performed in the setup process of the tool (1ff cutting) using the drawing board,
F machining] Pre-forming cedar on 1 t /ζ, wide standard auto and no measuring device for length dimensions [7 sub-determination, 4 and ke 1'l allows extremely accurate and quick 0 ζ setting; ν all done At the same time, you can do all the settings of L77'''2t, 11 cut, 1 stand, 1.A without needing special skill.

In other words, setting the grinding position, which conventionally required inefficient methods such as trial grinding, which required the same amount of time and skill, can now be carried out as a single, inexpensive work process. Moreover, it has a degree of 1n degrees.

Further”; stated! , the setting Ifl can be carried out on a tool grinding machine, and also has the advantage that no presetting work is required outside the lid.

Furthermore, it is possible to automate the setting of the grinding position by linking with NC = 1 position, and ultimately the tool grinder p
The effect of improving the reliability of machining can also be obtained with the tool V by c.

[Brief explanation of the drawing]

'-(￥1 Figure: A perspective view showing the configuration of the main parts of a tool grinder to which id-Dou et al. Direction 1i5i!)
41;・+2; Indication beam structure 1''4, Fig. 3 is a partial front view explaining the method of measuring the four-way length using a measuring instrument, Fig. 4 id
A cross-sectional view along the 1%/-■ line in Figure 3, and Figure 5 is the Y axis;
Zij 11 directions (ll
FIG. 6 is a partial IE diagram explaining the method of measuring the tool diameter using the measuring instrument 1/(, 010... base, 12... work head making aib part, 14... grinding wheel head operating part,
16...Machinery+4-housing axis, 18...Main stock,
2o... turtle-saddle, 22... second saddle,
26...Table, 28...Tenishisuke, 60.
・・Whetstone head, 32 ・・Whetstone head saddle, 6
6... Z-axis stand, T... tool to be ground, G... grindstone east, 几1. R2...Base surface, 4o...Tool length measuring device, 50...Tool diameter measuring device. Figure 5 Figure 6

Claims (1)

[Claims] 1. In a method for setting a grinding position in a tool grinder,
A reference surface is formed in advance on the work head operating section side, and the reference surface and the work head operating section side and the grinding wheel operating section (
Determine a certain standard dimension from the known dimensions of Ill.1
Next, the radial dimension and axial length of the workpiece to be ground are measured based on the reference surface, and then grinding is performed based on the constant reference dimension determined by the calculation and the radial dimension and axial length of the workpiece measured above. Calculate the set dimensions for the position. A method for setting a grinding position in a tool grinder, wherein the grinding position is set between the workpiece to be ground and the grinding wheel by moving a work head operating section or a grinding wheel operating section according to the calculation result. 2. Preliminary numerical control of the fixed standard dimensions determined by the above calculation @
The set dimension of the grinding position is calculated by M1 by storing the diameter dimension of the workpiece and the length in one direction of the workpiece in the numerical value 71i1J controller. A method for setting a grinding position in a tool grinder according to item 1. 3. In the bamboo material for setting the grinding position in a tool grinder,
A reference plane is formed on the end face of the work head having a workpiece mounting shaft hole and a part of the moving saddle on which the work head is mounted, and the work head is set on the reference plane and slides along the scale division. A measuring device that has a measuring head to measure the diameter of the workpiece to be ground and the tool length in total, and a target recorder. 1Ill
A pulse signal output device is installed on the machine and transmits the results of the total of 4111 devices as a pulse output, and the known dimensions of the workpiece operating section and the grinding wheel operating section of the mechanical grinding machine and the pulse signal output device are provided. The grinding position R is determined by the numerical control device from the diameter size output of the grinding workpiece and the tool length output sent from the signal output device, and the work head actuating part or the grinding wheel actuating part is ground. The setting percentage of the No. 1 grinding position in a tool grinding machine configured to command movement to a certain position.