JPH0332563A - Drilling tool molding device and molding method - Google Patents

Abstract

PURPOSE:To adjust the relative position of a work and a grinding wheel easily and accurately by providing work display means for displaying the position state of a work until the position data detected by detecting means coincide with that of the work and grinding wheel in the process of molding each part of the work memorized by a memory means. CONSTITUTION:When the position of a work is detected by work position detecting means 25, 26, and the position of a grinding wheel is detected by detecting means 33, 34, the position data detected by the detecting means 25, 26, 33, 34 is compared, by a CPU 45, with the position data of the work and grinding wheel in the molding process of each part of the work memorized by a memory means 46. Work display means La1-Lax, Lb1-Lbx for displaying the position state of the work and grinding wheel display means Lc1-Lcx, Ld1-Ldx for displaying the position state of the grinding wheel are blink displayed until both position data coincide with each other. Upon the coincidence of both position data, the driving of a molding machine is allowed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a forming apparatus and a forming method for drilling tools such as hammers, drills, and burnishing drills.

[Prior Art] Conventionally, a burnishing drill shown in FIGS. 13 and 14 has been proposed as a type of drilling tool. In this burnishing drill l, a pair of drill grooves 3 for discharging cutting waste are provided on the outer periphery of the cylindrical shaft body 2 and extend parallel to the center axis J of the shaft body 2, and between both drills: a3. Two pairs of coolant liquid supply grooves 4 are provided extending in parallel to these. On the outer periphery of the shaft body 2 behind the drill groove 3 and reamer groove 4 in the cutting rotation direction K of the shaft body 2, there are first to third grooves for pressing the inner peripheral surface of the hole drilled by the burnishing drill 1. Lands 5 to 7 are formed. A flank 8 is formed in the rear half of the second and third lands 6.7 with respect to the cutting rotation direction K of the shaft body 2.

A substantially conical crown part 9 is provided on the tip side of the shaft main body 2, and one end edge of the two end edges continuous to each drill J3 in the crown part 9 is provided with a thinning E, and the other end is provided with a thinning E. Main cutting edges 11 are formed on each edge. The main cutting edge 11 is composed of first to third blade parts 11a to 11c successively formed in order from the apex 12 of the crown part 9 to the outer peripheral corner 13 of the shaft body 2.

On the outer circumferential surface of the top portion 9, behind the first to third blade portions 11a to llc with respect to the cutting rotation direction K of the shaft body 2,
First to third flank surfaces C and Bl, respectively.

A is formed, and furthermore, a conical surface B2 is formed behind the second flank B1. Further, a stepped portion H having a slightly smaller diameter than the outer diameter of the shaft body 2 is formed on the tip side of the first land 5 provided on the shaft body 2, and a stepped portion H having a slightly smaller diameter than the outer diameter of the shaft body 2 is formed.
At the tip of 7, there are formed film difference parts DI and D2 for biting.

Each part A to E of the top portion 9 of the burnishing drill 10 configured as described above is formed by a tool forming device such as a tool grinder i. That is, by changing the relative positions of the burnishing drill 11' and the grinding wheel of the forming device and the workpiece for shaping in a predetermined order, and performing the forming process of each part A-H on the workpiece, the desired shape is achieved. Vanishing drill 1 is t
I will be beaten.

[Problem to be Solved by the Invention 1] However, as described above, the top portion 9 of the burnishing drill 1 has the first to third flank surfaces C, Bl, A, the conical surface B2, and the chamfering film difference portions Di, D2. It has a complicated shape with thinning E, etc. For this reason, when trying to form each part A-E of the tip of the burnishing drill 1 using a dive tool grinder that manually changes the workpiece position and grindstone position, it is difficult to accurately adjust the relative position between the workpiece and the grindstone. There's a problem.

On the other hand, if an NC grinding machine is used in which the operation of the grinding machine is controlled numerically rather than manually, the relative position between the workpiece and the grinding wheel can be adjusted accurately, but on the other hand, the
Since C grinding machines are generally expensive, there is a problem in that the manufacturing cost of the resulting burnishing drill 1 becomes high.

The purpose of the present invention is to accurately adjust the relative position between a workpiece and a grindstone by simple manual operation, even when shaping a drilling tool with a complicated shape, and to reliably manufacture a drilling tool with the designed shape. An object of the present invention is to provide a forming device and a method for forming a drilling tool.

[Means for Solving the Problem] Therefore, in order to achieve the above object, the first invention includes a workpiece position detection means for detecting the position of the workpiece, a grindstone detection means for detecting the position of the grindstone, and a method for detecting the position of the workpiece. A storage means for storing in advance the position of the workpiece and the position of the grindstone in the forming process as position data, a mode selection means for appropriately selecting the forming process operation of each part, and a mode selection means provided corresponding to the forming process of each part. , a workpiece display means indicating the positional state of the workpiece; a grindstone display means provided corresponding to the forming process of each part and indicating the positional state of the grindstone; and a selection mode based on the selection mode of the mode selection means. The workpiece display means and grindstone display means in the molding process,
The positions of those workpieces and grindstones are recorded in the storage means (Q
, a completion control means that causes the display to blink until the position data match the position data stored in the storage means, and a control means that enables the molding machine to be driven when the positions of the workpiece and the grindstone match the position data stored in the storage means. The gist of this invention is a forming device for a drilling tool.

Moreover, the second invention detects the position of the workpiece with the workpiece position detection means, detects the position of the grindstone with the grindstone detection means, and stores the position data detected by both of these detection means and the storage means. Until the positional data of the workpiece and the grindstone in the forming process of each part of the workpiece match, the workpiece display means indicating the positional state of the workpiece and the grindstone display means indicating the positional state of the grindstone are displayed blinking. The gist of this invention is to provide a method for forming a drilling tool that enables the driving of a forming machine when the two match.

"Operation" When the position of the workpiece is detected by the workpiece position detection means and the position of the grindstone is detected by the grindstone detection means, the position data detected by these two detection means and the shaping of each part of the workpiece stored in the storage means are processed. The position data of the work and the grindstone in the process are compared.Until both position data match, the work display means indicating the position state of the workpiece and the grindstone display means indicating the position state of the grindstone are displayed blinking. When both position data match, driving of the molding machine is permitted.

[Example] Hereinafter, an example in which the present invention is embodied in a molding device for molding a burnishing drill as a drilling tool will be described.
This will be explained according to FIG.

As shown in FIG. 1, a headstock 21 is mounted on a first slide table 20 extending in the left-right direction. When the operation handle 22 provided on the first slide table 20 is rotated, the headstock 21 is connected to the first headstock 21 via a ball screw transmission mechanism (not shown).
It is designed to slide on a slide table 20. A work head 23 is mounted on the headstock 21 so as to be movable in the vertical direction (direction perpendicular to the plane of the drawing) manually or by a motor. This work head 23 is equipped with a pulse motor Mp, and the chuck 24, which is connected to the pulse motor Mp and rotates in the direction of the arrow mark, has a 13th, 14th,
A rod-shaped workpiece W for forming the burnishing drill 1 shown in the figure is attached.

The headstock 21 includes a work head vertical position detector 25 for detecting the vertical position a of the work head 23, and a work rotation angle detector 26 for detecting the rotation angle θb position of the work W in the direction indicated by the arrow. and a workpiece position detection means for detecting the position of the workpiece W using both detectors 25 and 26 is provided.

A second slide table 27 is disposed on the side of the first slide table 20 and extends in a direction perpendicular to the first slide table 20 (vertical direction in FIG. 1). A grindstone head 28 is mounted so as to be rotatable in the direction of arrow C by a motor. Further, when the operation handle 29 provided on the second slide table 27 is rotated, the grindstone head 28 is moved to the second slide table 27 via a transmission mechanism (not shown) such as a pawl screw. It is designed to slide on the top.

As shown in FIGS. 1 and 2, a mounting member 30 is mounted on the grindstone head 2B so as to be slidable in a direction perpendicular to a grindstone shaft 31, which will be described later. A grindstone drive motor Mg is attached to the mounting member 30 so as to be tiltable in the direction of the arrow d, and a grindstone shaft 31 is connected to the grindstone drive motor Mg so as to be rotatable in the direction of the arrow f or the opposite direction. The grindstone shaft 31 has a head grindstone G1. Either one of G2 and thinning grindstone G3 is attached, and of these, head grindstone G
1 and G2 are attached, the grindstone shaft 31 is rotated in the direction of the arrow f, and when the thinning grindstone G3 is attached, the grindstone shaft 31 is rotated in the direction of the arrow pressure f.

In this embodiment, the head grindstone G1 forms the first to third flank surfaces C, Bl, A and the conical surface B2 at the tip of the workpiece W, and the head grindstone G2 forms the chamfering film difference parts DI, D2. Then, thinning E is formed using a thinning grindstone G3.

The grindstone head 28 includes a grindstone shaft rotation angle detector 3 for detecting the rotation angle θC position of the grindstone shaft 31 in the direction of arrow C.
3 and a whetstone shaft tilting angle detector 34 for detecting the tilting angle θd position of the whetstone shaft 31 in the direction of arrow d.
- A grindstone detection means for detecting the relative position of G3 is configured.

As shown in FIG. 3, in the vicinity of both slide tables 20 and 27, there is a control f! for controlling the drilling tool forming apparatus of this embodiment. 1i35 is installed. A mode selection switch 37 as a mode selection means is provided at the center of the lower part of the panel 36 of the control 5i35, and by rotating the mode selection switch 37, each part A to E of the workpiece W is formed. One of the six molding process operations (A mode and C mode) to be selected is selected.

At the top of the panel 36, there is a work head vertical position lamp Lal~ which displays the vertical position a of the work head 23.
A large number of Lax are provided. In this embodiment, the lamp L
al corresponds to A mode, lamp La2 corresponds to C mode, and lamps [, a3 correspond to D1 mode. Also,
At the diagonally upper right position of the mode selection switch 37, a work rotation angle lamp t that displays the rotation angle θb position of the work W;
A large number of b1 to Lbχ are provided. In this embodiment, the lamp La2 is in the Bl mode, and the lamp La2 is in the Bl mode.

The lamp La2 corresponds to the D2 mode.

The work head vertical position lamps La1 to Lax and the work rotation angle lamps Lb1 to Lbx are configured to take any one of an off state, a blinking state, and a lit state, and these lamps Lal to Lax, Lb
1''Lbx constitutes a workpiece display means that indicates the positional state of the workpiece W.

On the panel 36, on the left side of the mode selection switch 37, a large number of grindstone shaft rotation angle lamps 1, C1 to LCX, which display the rotation angle θC position of the grindstone shaft 31, are provided. In this embodiment, the lamps 1 and C1 correspond to the A mode, the lamp La2 corresponds to the C mode, the lamp La3 corresponds to the DI mode, and the lamp La4 corresponds to the C mode. Furthermore, directly below the grindstone shaft rotation angle lamps LC1 to Lcx, a large number of grindstone shaft tilt angle lamps Ldl=Ldx are provided that display the tilt angle θd position of the grindstone shaft 31.

In this embodiment, the lamp Lal is in the A mode, and the lamp La2 is in the A mode.
corresponds to C mode, and lamp La2 corresponds to D1 mode.

The grinding wheel shaft rotation angle lamps Lcl to Lcx and the grinding wheel shaft tilting angle lamps Ld1 to Ldx are configured to take any one of an off state, a blinking state, and a lit state, and these lamps Lcl to L CX + Ld
1 to L' d x constitute a grindstone display means that indicates the positional state of the grindstones G1 to G3.

Further, the mode selection switch 3 on the panel 36
On the right side of 7, a large number of pulse motor drive switches 3M1 to SMX are provided to allow the pulse motor Mp to be driven and rotate the workpiece W by a predetermined angle. In this embodiment, the Swiss SMI is set to Bl mode, and the switch 3M
2 is in B2 mode, switch 3M3 is in D! It corresponds to each mode. Further, the workpiece W is rotated by 180° by pressing the switch SMX.

Below the pulse motor drive switch SMI-3MX is a head grindstone G for grinding each part A-D of the tip of the workpiece W.
A head grindstone ON switch 38 for starting the rotation of G2 in the direction of the arrow f, and a head grindstone OFF switch 39 for stopping the same rotation are installed in parallel. is the thinning grindstone ON switch 4 for starting the rotation of the thinning grindstone G3, which grinds the thinning E at the tip of the workpiece W, in the direction opposite to the arrow.
0, and a thinning whetstone OF to stop the same rotation.
F switches 41 are arranged in parallel.

By the way, below the grinding wheel shaft tilting angle lamps La1 to Lax on the panel 36, there is a setting OK lamp L.
e and setting No. lamps Lr are arranged side by side on the left and right. The sesoting NO lamp Lr includes the work head vertical position lamp La1~Lax, the % work rotation angle lamp Lb1~l, and the b x s grindstone shaft rotation angle lamp L.
It lights up when a1~Lax and grinding wheel axis tilt angle lamps La1~Lax are blinking, and the sesoting OK lamp Le lights up when the above-mentioned blinking lamps Lal~LaX
%Lbl~Lbx, Lcl~Lcx, Ldl
It is designed to light up when all ~Ldx lights up.

In addition, on the lower right side of the panel 36, there is an emergency stop switch 4 for stopping the operation of the molding apparatus of this embodiment in an emergency.
4 are provided.

Next, the electrical configuration of the drilling tool forming apparatus of this embodiment will be explained with reference to the electrical circuit block diagram shown in FIG.

The central processing unit (hereinafter referred to as CPtJ) 45 as a completion control means and a control means has the position of the work W and the positions of the grindstones 01 to G3 in the forming process of each part of the penalty work A to E written in advance as position data. A read-only memory (ROM) 46 and a readable and rewritable memory (RAM) 47 are provided as storage means.

On the input side of the CPU 45, there is a work head vertical position detection 32.
5, Work rotation angle detector 26, Grinding wheel shaft rotation angle detector 33
, Stone axis tilt angle detector 34, mode selection ■ Shake switch 37
, pulseless motor drive switch SMI ~ SMX
, He,, Do whetstone ON Swissochi 38, Head whetstone OF
An F switch 39, a thinning grindstone ON switch 40, a thinning grindstone OFF switch 41, and an emergency stop switch 44 are connected.

In addition, the output of the CPU 45 (generally work head vertical position lamp L a (~L a
~L CX % Grinding wheel axis tilt angle lamp La1~Lax, Sesoting ○I <Lamp Le and setting N.

A display drive control circuit 48 that drives and controls the lamp Lr is connected. Furthermore, a motor drive circuit 49 that drives and controls the pulse motor Mp is connected to the output side of the CPU 45, and a motor drive circuit 50 that drives and controls the grindstone drive motor Mg is also connected.

Then, based on the A-E mode selected by the mode selection switch 37, the CPU 45 selects a work head vertical position lamp L corresponding to the selected A-E mode.
a1~L aX, work rotation angle lamp Lbl~L
bx % Grinding wheel shaft rotation angle lamp L c l-L c x
, and the grinding wheel shaft tilt angle lamps La1 to Lax, the positions of the work W and the grinding wheels 01 to G3 are set to the ROMA6.
The display blinks and blinks until it matches the position data stored in , and the setting NO lamp Lr is lit. Further, the CPU 45 controls the workpiece W and the grindstone G1.
When the position of ~G3 matches the position data stored in the ROM 46, the lamps La1~La blinking.
x,,Lbl~Lbx,Lcl~Lcx,,
Ld, to Ldx are lit up, the sesoting NO lamp Lr is turned off, and the sesoting OK lamp Le is turned on to enable driving of the grindstone drive motor Mg.

Next, a method for molding a burnishing drill using the molding apparatus configured as described above will be described.

The workpiece W used in this forming method is made of a pair of drills m extending approximately parallel to the central axis J of the rod-shaped material on the outer periphery of the first half (left side in FIG. 5) of the rod-shaped material, as shown in FIG.
3 is provided and both drills? Two pairs of glue grooves 4 are provided between the grooves 83 and extend in parallel to these grooves. First to 30th lands 5 to 7 are formed on the outer periphery of the shaft body 2 on the side of the drill 83 and the reamer groove 41 in the cutting rotation direction K of the workpiece W.

Next, a method of grinding the tip of the workpiece W and sequentially forming each part A to E will be explained based on the flowchart shown in FIGS. 11(a) and 11(b) and the process diagram shown in FIG. 12. This process explanatory diagram shows the vertical position a of the work head 23, the rotation angle θb position of the work W, the tilt angle θd position of the grindstone shaft 31, and the position of the grindstone shaft 31 in the A-E mode selected by the mode selection switch 37. The rotation angle θC position is illustrated in each figure.

First, the angles of the work head 23, work W, and grindstone shaft 31 are adjusted to the positions shown by the solid lines in A mode in FIG. The vertical movement position of the work head 23 at this time is the reference position, and the angular position of the work W and the grindstone shaft 31 is the reference angular position, that is, the vertical position a=Q of the work head 23, the rotation angle θb=o of the work W, Tilt angle θd of grindstone shaft 31 = 0
, the rotation angle of the grindstone shaft 31 is assumed to be θC-0. Then, the position of the work head 23 on the first slide table 20 and the position of the grindstone head 28 on the second slide table 27 are adjusted so that the head grindstone G1 contacts the tip of the work W in this state. (See Figure 1.2).

Molding process of the third flank A> When the operator sets the mode selection switch 37 to the A mode (step 1, hereinafter simply referred to as 31, the same applies to other steps), the CPU 45 reads the third flank from the ROM 46.
The processing data for forming the flank surface A is read out, the work head vertical position lamp L a 1 , the grindstone shaft rotation angle lamp Lc1 and the grindstone shaft tilt angle lamp Ld1 are blinked, and the setting No. lamp Lf is turned on. (S2). For this reason, the blinking lamp 'L,
By looking at aILcl and Ldl, the operator can determine that it is necessary to move the work head 23 and rotate and tilt the grindstone shaft 31.

The work head 23 is moved manually or by a motor, and the grindstone shaft 31 is rotated and tilted (S3), and the work head vertical position detector detects that the work head 23 has been rotated by a=ΔA from the reference position. 25, the CPU 45 turns on the work head vertical position lamp Lal based on the detection signal. Further, when the grindstone shaft rotation angle detector 33 detects that the grindstone shaft 31 has been rotated by θC=32 degrees to the left from the reference angle position, the CPU
45 turns on the grindstone shaft rotation angle lamp Lcl. Furthermore, when the grindstone shaft tilting angle detector 34 detects that the grindstone shaft 31 has been tilted downward by θd=8° from the reference angle position, the CPU 45 activates the grindstone shaft tilting angle lamp L based on the detection signal.
Turn on dl.

Then, when the work head vertical position lamp La1, the grindstone shaft rotation angle lamp Lcl, and the grindstone shaft tilt angle lamp Ldl are turned on, the CPU 45 activates the sesoting No. lamp L.
f and turns off the sesoting OK lamp Le.
is turned on (S4, S5) to enable driving of the grindstone drive motor Mg. Therefore, the operator must use the lamps Lal and Lc.
By checking the flashing or lighting states of l, Ldl, l, and eLf, it can be confirmed that the relative position between the head grindstone G1 and the work W has been set to an appropriate position.

The head grindstone ON switch 38 is pressed by the operator (
S6), and the CPtJ45 drives the grindstone drive motor Mg to rotate the head grindstone G1 (S7).

Then, the tip of the workpiece W is ground by the head grindstone G1, and a third flank A is formed as shown by the broken line in FIG. This third flank A is formed,
When the head grinding wheel OFF switch 39 is pressed (S8),
The CPU 45 stops the rotation of the head grindstone Gt, and turns on the work head vertical position lamp L a which is lit.
1. Grinding wheel shaft rotation angle lamp Lc・1. The grindstone shaft (rolling angle bump Ld) and setting OK lamp Le are turned off (S9), and the grinding process for forming the third flank A is completed.

Note that once the third flank A on one side is formed on the workpiece W as described above, the pulse motor drive switch SMX is pressed to rotate the workpiece W by 180°, and the same operation as described above is performed. Then, the other third flank surface A can be formed.

Step of forming the second flank B1 and conical surface B2 When the operator sets the mode selection switch 37 to B1+B2 mode (310), the CPU 45 stores the second flank B1 and conical surface B2 from the ROM 46. Read the machining data for grinding, blink the work rotation angle lamps t, bl, and turn on the setting No. lamp Lf (
311). Therefore, by looking at the flashing lamp La2, it can be determined that the workpiece W needs to be rotated.

Then, the operator selects the pulse motor drive switch 3M1.
When is pressed, the CPU 45 rotates the pulse motor Mp (S12). The workpiece rotation angle detector 26 detects that the workpiece W has been rotated by θb-15° to the left from the reference angle position.
(S13) ε, CP is detected based on the detection signal.
U45 lights up the work rotation angle lamp Lbl and sets N.

The lamp Lf is turned off and the setting OK lamp Le is turned on (314), thereby enabling the grindstone drive motor Mg to be driven.

Therefore, the operator must use the lamp Lb1. By checking the flashing or lighting states of Le and Lf, it can be confirmed that the relative positions of the head grindstone G and the workpiece W are set at appropriate positions.

The head grindstone ON switch 38 is pressed by the operator (
515), the CPU 45 drives the grindstone drive motor Mg to rotate the head grindstone G1 (316). Then, the tip of the workpiece W is ground by the head grindstone G1, and the seventh
A second flank B1 as shown by the broken line in the figure is formed.

After forming the second flank B1, the rotation and contact state of the head grindstone G1 with respect to the workpiece W is maintained, and when the pulse motor drive switch 3M2 is pressed by the operator, the CPU 4
5 rotates the pulse motor Mp. When the workpiece W is rotated by θb=90° from the reference angular position (θb=75° from the position in the B+ mode), a conical surface B2 as shown in FIG. 8 is formed.

As described above, the second flank B1 and the conical surface B2 are formed and the head grindstone OFF switch 39 is pressed (31
7) and the CPU 45 is the head grindstone G.

At the same time, the workpiece rotation angle lamp Lbl and setting OK lamp Le that are lit are turned off (318), and the grinding work for forming the second flank Bl and conical surface B2 is completed. .

Note that once the second flank Bl and the conical surface B2 are formed on the workpiece W as described above, the pulse motor drive switch SMX is pressed to rotate the workpiece W by 180° and the same process as described above is performed. Perform operations. Then, the other second
The flank surface BL and conical surface B2 can be formed.

Step of forming the first flank C> When the operator sets the mode selection switch 37 to C mode (S28), the CPU 45 reads the machining data for molding the first flank C from the ROM 46, and The head vertical position lamp La2, the grinding wheel shaft rotation angle lamp La2, and the grinding wheel shaft tilting angle lamp La2 are turned on and off, and the sesoting No. lamp Lf is turned on (329
). Therefore, the blinking lamp La2. Lc2. L
By looking at d2, the operator can determine that it is necessary to move the work head 23 and rotate and tilt the grindstone shaft 31.

When the work head vertical position detector 25 detects that the work head 23 has been moved manually or by a motor and moved down by ΔC from the reference position, the CPU 45 lights up the work head vertical position lamp La2 based on the detection signal. . Further, the grindstone shaft rotation angle detection R3 detects that the grindstone shaft 31 has been rotated by 16 degrees to the left from the reference angle position (16 degrees to the right from the position in the B2 mode).
3 is detected, the CPU 45 turns on the grindstone shaft rotation angle lamp La2 based on the detection signal. Furthermore, when the grindstone shaft tilting angle detector 34 detects that the grindstone shaft 31 is tilted downward by 15 degrees from the reference angular position (7 degrees downward from the angular position θd-8 degrees in the B1 mode), the detection Based on the signal, the CPU 45 turns on the grinding wheel shaft tilt angle lamp L.
Turn on a2. Then, when the work head vertical position lamp La2, the grindstone shaft rotation angle lamp La2, and the grindstone shaft tilt angle lamp La32 are all turned on, the CP
U45 turns off the setting NO lamp Lf, turns on the setting OK lamp Le (330-532),
Enables the drive of the grindstone drive motor Mg. Therefore, the operator can confirm that the workpiece W and the head grindstone ci are set at appropriate positions.

The head grindstone ON switch 38 is pressed by the operator (
S33), and the CPU 45 rotates the head grindstone G1 (S34). Then, the tip of the workpiece W is ground by the head grindstone G1, and a first flank C as shown by the broken line in FIG. 8 is formed. This first flank C is formed, and the head grindstone OFF switch 39 is pressed (
335), the CPU 45 stops the rotation of the head grindstone Gl, and turns off the lit work head vertical position lamp La2, grindstone shaft rotation angle lamp La2, grindstone shaft tilt angle lamp La2, and setting OK lamp Le. (336), the grinding of the first flank C is completed.

Note that once the first flank C on one side is formed on the workpiece W as described above, the pulse motor drive switch SMX is pressed to rotate the workpiece W by 18°, and the same operation as above is performed. Then, the other first flank C can be formed.

Forming process of the chamfering membrane difference parts DI, D2> When molding the chamfering film difference parts DI, D2, the head grindstone G1 used in the above-mentioned modes A to C is changed to the head grindstone G2 for jumping. Then, after adjusting the work head 23 to the reference position and the work W and the grindstone shaft 31 to the reference angular positions, the head grindstone G2 is brought into contact with the tip of the grinder W.

The mode selection switch 37 is set to DI by the operator.

When set to B2 mode (S37), the CPU 45 reads machining data for forming the chamfering film difference parts DI and D2 from the ROM 46, and sets the work head vertical position lamp La3, work rotation angle lamp La2, and grindstone shaft rotation. Flashing the moving angle lamp La3 and the grinding wheel axis tilting angle lamp La3,
The setting NO lamp Lf is turned on (338).

For this reason, the blinking lamp La3. Lb2. Lc3
．． By looking at Ld3, the operator can move to the workpiece by looking at Ld23.
It can be determined that it is necessary to move the workpiece W, rotate the workpiece W, and rotate and tilt the grindstone shaft 31.

When the pulse motor drive switch 3M3 is pressed by the operator, the CPtJ45 drives the pulse motor Mp to rotate the workpiece W. Further, the work head 23 is moved by a predetermined length, and the grindstone shaft 31 is rotated or tilted by a predetermined angle (S
39). When the work head vertical position detector 25 detects that the work head 23 has been moved upward by ΔD1 from the reference position, the CPU 45 turns on the work head vertical position lamp La3 based on the detection signal. When the workpiece rotation angle detector 26 detects that the workpiece W has been rotated by θb-45° from the reference angular position, the CPU 4
Step 5 turns on the work rotation angle lamp La2. Further, when the grindstone shaft rotation angle detector 33 detects that the grindstone shaft 31 has been rotated 10 degrees to the right from the reference angular position, the CPU 45 lights up the grindstone shaft rotation angle lamp La3 based on the detection signal. Ru. Further, when the grindstone shaft tilting angle detector 34 detects that the grindstone shaft 31 has been tilted upward by 10 degrees from the reference angular position, the CPU 45 turns on the grindstone shaft tilting angle lamp La3 based on the detection signal.

Then, when the work head vertical position lamp La3, work rotation angle lamp La3, grindstone shaft rotation angle lamp La3, and grindstone shaft tilt angle lamp La3 are all turned on, the CPU
45 turns off the setting No lamp Lf and turns on the setting OK lamp Le (S40,
541), it is possible to drive the grindstone drive motor Mg. Therefore, the operator can confirm that the relative positions of the workpiece W and the head grindstone G2 are set at appropriate positions.

The operator presses the hend whetstone ON switch 38 (
S42) and cpυ45 rotates the head grindstone G2 (S43). Then, the tip of the workpiece W is ground by the head grindstone G2, and a chamfering film difference Dl is formed as shown by the broken line in FIG. When this chamfering step is formed and the head grinding wheel OFF switch 39 is pressed (S44), the cpυ 45 stops the rotation of the head grinding wheel G2 and turns off the illuminated work head vertical position lamp L a 3. , work rotation angle lamp La3
, Grinding wheel shaft rotation angle lamp La3, Grinding wheel shaft tilting angle lamp La
3, and turn off the setting OK lamp Le (S4
5) Complete the grinding of the chamfering step portion DI.

The lamps La3, Lb2. When LC, 3, and Ld3 are turned off, the CPU 45 blinks the work rotation angle lamp La3 (346), and when the operator presses the pulse motor drive switch 3M4, the CPU 45 drives the pulse motor Mp to rotate the workpiece. Rotate W (347)
, the workpiece rotation angle detector 26 detects that the workpiece W has been rotated by 90° from the reference angular position (by θb-45° from the angular position in the D1 mode) (S48).
Based on the detection signal, the CPU 45 turns on the work rotation angle lamp La3 (S49). Therefore, the operator can confirm that the workpiece W has been rotated by a predetermined angle.

The head grindstone ON switch 38 is pressed by the operator (
550), and the CPtJ45 rotates the head grindstone G2 (351). Then, the workpiece W is cut by the head grindstone G2.
By grinding the tip, a chamfering film difference D2 is formed as shown by the broken line in FIG. When the chamfering film difference D2 is formed and the head grindstone OFF switch 39 is pressed (S52), the CPU 45 stops the rotation of the head grindstone G2 and turns off the lit work rotation angle lamp La3 ( S53), Membrane difference part D for biting
Complete the grinding process in step 2.

In addition, once one of the biting @ difference parts DI and D2 is formed for the workpiece W as described above, press the pulse motor drive switch SMX to rotate the workpiece W by 180°, and perform the same operation as above. conduct. Then, the other chamfering film difference portions Di and D2 can be formed.

Forming process of thinning E> When forming thinning E, the head grindstone G2 used in the DI and D2 modes is changed to the thinning grindstone G3.

When the operator sets the mode selection switch 37 to E mode Y (354), the CPU 45 reads processing data for forming thinning E from the ROM 46,
Flash the grinding wheel shaft rotation angle lamp La4 and set to N.
The O lamp Lf is turned on (355). Therefore, by looking at the flashing lamps 1 and C4, the operator can determine that it is necessary to rotate the grindstone shaft 31.

The grindstone shaft 31 is rotated manually or by a motor (356
), the grindstone shaft rotation angle detector 3 detects that the wheel has been rotated 90" to the right from the reference angle position (80" to the right from the D2 mode state).
3 is detected, the CPU 45 turns on the grindstone shaft rotation angle lamp La4 based on the detection signal. When the grinding wheel shaft rotation angle lamps l and c4 light up, the CPU 45 turns off the setting No. lamp Lf and turns off the setting O.
Turn on the K lamp Le (357, 358).

The head grindstone ON switch 38 is pressed by the operator (
359), the CPU 45 rotates the thinning grindstone G3 (S60). Then, the tip of the workpiece W is ground by the thinning grindstone G3, and a thinning E is formed as shown by the broken line in FIG. This thinning E is formed and the head grindstone is turned off by the operator.
When the switch 39 is pressed (361), the CPU 45 stops the rotation of the thinning grindstone G3, and displays the lighting of the grindstone shaft rotation angle lamp La1 and indicates that the setting is OK.
The lamps l and e are turned off (<362), and the Vr cutting process for forming the thinning E is completed.

In addition, as mentioned above, one thinning E is applied to the workpiece W.
Once formed, the pulse motor drive switch SMX is pressed to rotate the workpiece W by 180° and the same operation as described above is performed. Then, the other thinning E can be formed.

As described above, according to this embodiment, even when forming a drilling tool with a complicated shape such as the burnishing drill 1, the work head vertical position lamps La1 to La3, the work rotation angle lamps La1 to La3, and the grinding wheel shaft rotation Dynamic angle lamp l, c
'1=Lc4 and the blinking state of the grindstone shaft tilt angle lamp Ldl-Ld3, it is possible to know which member should be adjusted. In addition, the worker should check the flashing lamps La1~
La3°Lbl~t, b3. LCI~l, c4. Ld1
It is sufficient to perform the til1 section for the grindstones 61 to G3 or the workpiece W until ~Ld3 changes to the lighting state. When the setting OK lamp Le lights up, you can know that the position adjustment has been completed. Therefore, the positions of the workpiece W and the grindstones G1 to G3 can be easily adjusted.

Further, the lamps La1 to La3, Lb1 to Lb3, L
Grinding wheels G1 to G3 do not rotate until cl to LC4 and Ldl to Ld3 change from blinking to lit and the setting OK lamp Le lights up, and only when the same lamp Le lights up do grindstones 01 to G3 Since the blade can be rotated, there is no risk of grinding being performed while it is centered in the wrong position. Therefore, it is possible to reliably manufacture a burnishing drill of the desired shape.Furthermore, in the forming apparatus of this embodiment, only the function of displaying the relative position of the workpiece W and the grinding wheels 01 to G3 is automatically controlled, and the other functions are Since the function is performed manually or by a motor, the forming device can be made cheaper than the conventional NCVr grinding machine.

It should be noted that the present invention is not limited to the configuration of the above-mentioned embodiments, and may be modified and embodied as desired without departing from the spirit of the invention, for example, as described below.

(1) In addition to burnishing drills, the present invention can also be embodied in a molding apparatus and a molding method for molding drilling tools having complicated shapes, such as drills and reamers.

(2) Sesoting OK lamp L in the above embodiment
e% Setting No. lamp Lf may be omitted.

(3) Although three grindstones 01 to G3 were used in the above embodiment, it is also possible to use a type of grindstone in which these grindstones are integrated.

(4) In the embodiment described above, the attachment member 30 and the grindstone drive motor Mg are rotatable in the direction of arrow C, but they may be made unrotatable so that the work head 23 can be rotated.

(5) In the above embodiment, the workpiece W is moved up and down, but the grinding wheels G1 to G3 may also be moved up and down.In short, when the grinding wheels G1 to G3 are tilted in the direction of the arrow d, Workpiece W and grindstone G1~ so that it comes into contact with workpiece W
It is sufficient to move either one of G3 up and down.

[Effects of the Invention] As detailed above, according to the drilling tool forming apparatus and forming method of the present invention, even when forming a drilling tool with a complicated shape such as a burnishing drill, the grindstone display means and the workpiece display means By looking at the blinking state of the icon, you can not only know which parts need to be adjusted, but also easily check whether the relative positions of the grindstone and workpiece are properly set. Since the processing and forming machine does not operate until the hole is in the proper position, this has the excellent effect of making it possible to reliably manufacture a drilling tool with the shape as designed.

[Brief explanation of drawings]

The drawings show an embodiment embodying the present invention, in which Fig. 1 is a schematic plan view of a drilling tool forming device, Fig. 2 is a schematic side view of a grindstone head, and Fig. 3 is a front view of a panel of a control panel. Fig. 4 is an electric circuit block diagram showing the electrical configuration of the drilling tool forming device, Fig. 5 is a front view of the workpiece, Fig. 6 is its plan view, and Figs. 11(a) and 11(b) are flowcharts showing the method of forming each part of the tip of the workpiece using a forming device, and FIG. 12 shows the relationship between the relative positions of the workpiece and the grindstone during the forming process. FIG. 13 is a plan view of a burnishing drill formed using a drilling tool, and FIG. 14 is a partially cutaway front view of the tip of the burnishing drill. 1... Burnishing drill as a drilling tool, 25.
... Work head vertical position detector as work position detection means, 26... Work rotation angle detector as work position detection means, 33... Grinding wheel shaft rotation angle detector as grindstone detection means, 34. ... Grinding wheel shaft tilt angle detector as grinding wheel detection means, 37... Mode selection switch as mode selection means, 45... CPU as completion control means and control means, 46... ROM as storage means ,
A...Third flank surface, B1...Second flank surface, B2
... Conical surface, C... First flank surface, DI, D2...
・Step part for chamfering, E...Thinning, GL, CI2
...Head whetstone, G3... Thinning whetstone, La1
=Lax... Work head vertical position lamp as work display means, Lb, -Lbx... Work rotation angle lamp as work display means, La4=Lax... Grindstone shaft rotation angle lamp as grindstone display means , Ldl~Ldx
...Grinding wheel shaft tilt angle lamp as a grinding wheel display means, W.
··work.

Claims (1)

[Claims] 1. The relative positions of the workpiece (W) for forming the drilling tool (1) and the grindstones (G_1 to G_3) are changed in a predetermined order, and each part (A to G_3) of the workpiece (W) is In the drilling tool forming apparatus which performs the forming process of E) to form the drilling tool (1), a workpiece position detection means (25, 26) for detecting the position of the workpiece (W); Grindstone detection means (33, 34) for detecting the position of the grindstones (G_1 to G_3);
storage means (46) for storing in advance the positions of W) and the positions of the grindstones (G_1 to G_3) as position data; and mode selection means (37) for appropriately selecting the molding process operations of the respective parts (A to E). ), and a workpiece display means (La
_1 to La_x, Lb_1 to Lb_x) and each of the above parts (
It is provided corresponding to the forming process of A to E), and the grindstone (G
Grindstone display means (Lc_
1 to Lc_x, Ld_1 to Ld_x) and the selected mode of the mode selection means (37),
Workpiece display means (La
_1 to La_x, Lb_1 to Lb_x) and the grindstone display means (Lc_1 to Lc_x, Ld_1 to Ld_x) at the positions where the positions of the workpiece (W) and the grindstone (G_1 to G_3) are stored in the storage means (46). a completion control means (45) that causes the display to blink until the data match; and a completion control means (45) for controlling the molding machine when the positions of the workpiece (W) and the grindstones (G_1 to G_3) match the position data stored in the storage means (46). A drilling tool forming device characterized in that it is provided with a control means (45) that enables driving. 2. Drilling tool (1) Change the relative position of the workpiece (W) and grindstone (G_1 to G_3) for forming in a predetermined order, and perform the forming process of each part (A to E) of the workpiece (W). In the method for forming a drilling tool (1), the method includes: a workpiece position detecting means (25;
26) detects the position of the workpiece (W), and
The grindstone detection means (33, 34) detects the grindstones (G_1 to G_
3), and detects the position of both these detection means (25, 26,
33, 34) and the workpiece (W) and grindstone (G_1 to G_3) in the forming process of each part of the workpiece (A to E) stored by the storage means (46).
The workpiece display means (La_1 to La_x, L
b_1 to Lb_x) and grindstone display means (Lc_1 to Lc_x, L
d_1 to Ld_x) are displayed in a blinking manner, and when both position data match, the forming machine is enabled to be driven.