KR100675332B1 - Grinding method of helical dies and its device - Google Patents

Abstract

A grinding method of helical dies and a grinding device thereof are provided to improve productivity by automatically grinding dies by the composite movement of X-axis, Y-axis and Z-axis movement units. A grinding device(13) of helical dies, comprises a transfer unit(16) arranged on a base(15), and has an elevating member; a jig unit(17) arranged at one side of the transfer unit; a Y-axis movement unit(19) for moving the jig unit in Y-axis direction; an X-axis movement unit(20) for moving dies in X-axis; a grinding unit(23) for grinding the dies by rotating a grinding wheel at a high speed; a Z-axis moving unit for seesaw moving the grinding unit so that the grinding wheel contacts dies only during grinding; an angle setting unit(25) for setting a grinding angle of the grinding wheel; and a sensing unit and a controller(26).

Description

Helical die processing method and its processing device {GRINDING METHOD OF HELICAL DIES AND ITS DEVICE}

1: Front view of the nail rolling by the screw type.

2: Front view of a nail rolled into a ring shape.

3: reference state of operation of the conventional nail rolling machine.

4 is a perspective view of an embodiment of the present invention

5 is a side view of an embodiment of the present invention.

6 is a front view of an embodiment of the present invention.

7 is a plan view of one embodiment of the present invention.

8 is a partial perspective view of the present invention the angle setting means and the processing means and Z-axis moving means.

9 is a partial perspective view of the present invention the angle setting means and the processing means and Z-axis moving means.

10 is a partial perspective view of the upper and lower limit sensors of the Z-axis moving means of the present invention.

11 is a partial plan view of the present invention the angle setting means and the processing means and Z axis moving means.

12 is an external perspective view of the transfer tray of the present invention.

13 is a front view of the transfer tray of the present invention.

14 is a side view of the feeder of the present invention.

15 is a cross-sectional view of the conveyance lifting means of the present invention.

16 is a perspective view of an embodiment of the present invention assisted die jig.

17 is a plan view of an embodiment of the present invention assisted die jig.

18 is a side view of an embodiment of the present invention ring die jig;

19 is a front view of an embodiment of the present invention ring die jig.

20 is a developed view of a rolling blade formed on the surface of the auxiliary die of the present invention.

Fig. 21: A plan view of a state in which a rolling blade is processed on the surface of the auxiliary die of the present invention.

The front view of the state which is processing the rolling blade on the surface of this invention auxiliary dice | dies.

23 is a flowchart of one embodiment of the present invention.

24 is a circuit block diagram of an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

(1) (2)-Spike (1a)-Screw

(3)-Nail Rolling Machine (4)-Ring Dice

(5)-Auxiliary Dice (6)-Support Members

(7) (8)-Rolling Edge (7a) (8a)-Indentation Groove

(9)-Rolling Part (9a)-Rolling Inlet

(9b)-Rolling Exit (10)-Inclined Suit

(11)-Finger (12)-Cam

(13)-helical die processing machine (14) (62)-base

(15)-Expectation (15a) (62a) (61a) (62b)-Gender Slide

(16)-Convoy (17)-Jigsaw

(19)-Y-axis means of transport (20)-X-axis means of transport

(21) (32) (49) (69)-Shaft (22)-Grinding wheel

(23)-Machining means (24)-Z axis means of transport

(25)-Angle setting means (26)-Controller

(27) (38) (65)-Motor (28)-Wheel Cover

(29)-Axle cover (30) (37)-Block

(31)-Seesaw (33)-Table

(34)-Bottom (35) (50) (64)-Nut

(36) (66)-Ballscrew (39)-Motor Fixing Plate

(40)-guide rod (41)-guide rod bearing

(42)-Spring (43)-High Limit Sensor

(43a) (44a) (45a) (81a)-light emitting portion 43b (44b) 45b (81b)-light receiving portion

(44)-Lower limit sensor (45) (81)-Home sensor

(46) (47) (82)-Shading Plate (48)-Reputation

(51) (70)-Handle (53)-Support Member

(54)-Shaft Member (55) (56)-Long Hole

(57) (58) (78)-Bolt (59)-Encoder

(60)-Guide (61)-Secondary Guide

(67) (68)-Bevel Gears (71) (72)-Limit Switch

(71a)-fixing member (73) (74)-actuating member

(72a) (79)-Axle (73a)-Arm

(74a)-engagement groove (75) (76) (77)-support plate

(80)-Chuck (83)-Control Unit

(84)-Settings (85)-Display

(86)-Index Motor (87)-Alarm Department

(88)-Communication Interface (89)-Print Output

( θ ) ( θ2 ) -Machining Angle

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a helical die processing method and a processing apparatus that greatly improve productivity and quality by automatically grinding helical dies, which are core parts of a rolling machine, at various angles, pitches, and depths.

In general, hard wood (木材) is using a nail (1) processed into a screw type as shown in FIG. The screw-type nail 1 is manufactured by forming a plurality of screws 1a on the outer surface (outer peripheral surface) of the nail using a nail rolling machine, and then subjecting it to a post-treatment process such as plating, heat treatment, and painting. .

Conventional nail rolling machine (3) used in the manufacture of rolling nails, as shown in Figure 2 is a fixed auxiliary die 5 and its supporting member (6) is installed in a predetermined section on the outer side of the ring die (4), which is a rotating body On the outer circumferential surface of the ring die 4 and the inner circumferential surface of the auxiliary die 5, as shown in Fig. 3, screw-type rolling blades 7 and 8 are formed in opposite directions, respectively, and the ring die 4 and the auxiliary dies are Between (5), the rolling part 9 by which the process target nail 2 can move is provided.

When the nail supplied through the inclined chute 10 is introduced into the inlet 9a of the rolling part 9 by the finger 11, the nail 11 moves along the rolling part 9 by the rotation of the ring die 4. Rolling process is rotated and then discharged to the outlet (9b), a plurality of screws (1a) are formed on the outer peripheral surface of the nail (1) by the rolling blade (7) (8). In addition, the driving means of the finger 11, not shown, is operated by the cam 12 which rotates together along the ring die 4.

Since the ring die 4 and the auxiliary die 5 have a predetermined radius of curvature, the nail 2 passing through the rolling portion 9 is rolled while moving in a vertical state, but the rolling blade 7 in an inclined state ( 8, the screw 1a is formed in the outer peripheral surface of the nail 1 as shown in FIG. And if the rolling blade (7) 8 is omitted in some sections of the ring die 4 and the auxiliary die 5 by the recessed groove (7a) (8a) as shown in FIG. (1a) is not formed.

On the other hand, since the rolling blades (7) (8) are processed in an inclined curved shape on the inner and outer circumferential surfaces of the helical die (4) (5) having a curved surface, respectively, it is difficult and difficult to process, and the helical dice (4) (5). ) Is made of cemented carbide (carbide alloy), so even when the rolling blades (7) (8) are ground with a diamond wheel, they are repeatedly processed several times at a depth of about 0.02 to 0.03 mm at a time.

Conventionally, rolling blades (7) (8) are processed depending on the method of manually manipulating the left and right movements of the grinding wheel (diamond wheel) using a handle while manually moving the index, which not only significantly reduces productivity, but also reduces helical dies. When three machining, one of them had a problem such that the defect rate is very high (30% to 40%) enough to be poor processing.

Accordingly, an object of the present invention is to provide a helical die processing method which greatly improves productivity and quality by automating the processing of a rolling blade (helical blade) formed on the surface of a helical die of a rolling machine. have.

Another object of the present invention is to provide a helical die processing apparatus which greatly improves productivity and quality by automating a rolling blade forming on a helical die surface of a rolling machine.

In order to achieve the above object, a feeder for adjusting the height is installed on a base having a pedestal, and on one side of the feeder, jig means for fixing a helical die (ring die or auxiliary die) to be processed, and an index and an index motor. Y-axis moving means for moving the helical die jig by using the Y axis, and X-axis moving means for moving the jigsaw helical die to the X-axis in the longitudinal direction of the carriage, respectively, and the grinding wheel is installed on the upper part of the base. Machining means for grinding the helical die by using, Z-axis movement means for contacting the helical die only when the grinding means by grinding the machining means, and setting the angle of setting the machining angle of the grinding wheel And a controller for controlling the sensing means and the helical die processing apparatus as a whole.

In the present invention, the helical die, that is, the ring die (rotary die) and the auxiliary die (segment), which are the object to be processed are reciprocated in the X axis direction by the X axis moving means, and the processing means (the machining wheel) are Z axis movements during grinding. Grinding is performed while being pressed by the means (seesaw movement means) and pressed against the surface of the helical die, and during non-grinding, the machining means is raised by the Z-axis movement means to break the contact with the helical die. When the helical die is ground, the processing means (processing wheel) is processed by the Y axis moving means in the Y-axis direction and processed at right angles to the surface of the helical die. That is, a rolling blade (a helical blade) is ground by a complex motion of the X, Y, and Z axis moving means.

The grinding device according to the present invention comprises a processing means for grinding a helical die, a grinding angle setting means for rotating the processing means in an angle in a range of 0 ° to 45 ° according to the processing angle, and a grinding means about the axis during grinding. It is composed of a Z-axis moving means for raising the grinding wheel of the processing means about the seesaw axis when lowering the grinding wheel and reversing for the next grinding.

In describing the present invention, the same elements in the drawings are denoted by the same reference numerals as much as possible, and detailed descriptions of related known configurations or functions will be omitted so as not to obscure the subject matter of the present invention. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

According to the present invention, a helical die, that is, a ring die (rotary die) and an auxiliary die (segment), is reciprocated in the X-axis direction by an X-axis moving means, and the processing means (processing wheel) is Z-axis movement means when grinding. Grinding is carried out by descending by the (seesaw movement means) and pressurized contact with the helical die surface, and during non-grinding, the machining means is raised by the Z-axis movement means to break the contact with the helical die. In addition, when the helical die is ground, the processing means (processing wheel) is moved by the Y-axis moving means in the Y-axis direction and is automatically processed while keeping the surface of the helical die perpendicular to the surface.

4 is an external perspective view of the helical die processing apparatus 13 of the present invention shown as an example, and FIG. 5 is a side view thereof.

The helical die processing apparatus 13 is provided with a feed table 16 for adjusting the height on the base 15 having a pedestal 14, the side of the feed table 16 is a helical die, such as a ring die to be processed (4) or jig means (17) capable of fixing the auxiliary dice (5), Y-axis moving means (19) for moving the helical dice jig by using the index and the index motor to the Y axis, and X-axis moving means 20 for moving the helical die in the X-axis (longitudinal direction of the carriage) is provided, respectively.

In the upper part of the base 15, the processing means 23 for grinding the helical die using the grinding wheel 22, and the grinding wheel 22 is in contact with the helical die only when the sawing movement of the processing means 23 is performed. Z-axis moving means 24, the angle setting means 25 for setting the processing angle of the grinding wheel 22, the conveyance table 16 lifting means, the sensing means and the helical die processing apparatus 13 It consists of the controller 26 etc. which control overall.

The processing means 23 comprises a grinding wheel 22 which rotates at a high speed by the motor 27, a wheel cover 28 which covers most of the grinding wheel 22, a rotation shaft of the motor 27 and the grinding wheel 22. A shaft rod 21 to be connected, a shaft cover 29 for supporting the shaft rod 21, a block 30 to which the shaft cover 29 and the motor 27 are fixed, and the like.

The grinding wheel 22 may be, for example, a diamond wheel that can process a helical die composed of cemented carbide (carbide alloy), it is a structure that can be separated from the shaft 21. And the wheel cover 28 is blocked so that the tip (tip) or particles generated during the grinding process is not dispersed or splashed.

The Z-axis moving means 24 has a seesaw plate 31 to which the processing means 23 is fixed to the top end surface, and the seesaw plate 31 is transversely disposed at the center of the seesaw plate 31. A seesaw shaft rod 32 to be installed, a pair of left and right bearings 34 fixed to one side of the table 33 and supporting the seesaw shaft rod 32, and a nut 35 fixed to the rear end of the seesaw plate 31. And a ball screw 36 vertically fastened to the nut 35, a block 37 fixed to an upper surface of the table 33 and in which the ball screw 36 is in surface contact with the ball screw 36. The rotating shaft of the motor 38 connected to the upper end of the ball screw 36 so as to rotate, the guide rod 40 fixed vertically to one side of the fixed plate 39 of the motor 38, and the guide rod 40 are slid. The guide rod bearing 41 is fixed to the seesaw plate 31 and the fixing plate 39, the bottom surface and the spring 42 is elastically installed on the top plate 31.

The motor 38 is supported in a vertical state by the ball screw 36 fastened to the nut 35, and unnecessary rotation is prevented by the guide rod 40 for guiding the lifting and lowering of the seesaw plate 31.

As can be seen in FIG. 8, the seesaw shaft 32 is installed near the distal end of the seesaw plate 31, and the heavy motors 27 and 38 are located at the rear end of the seesaw shaft 32, so that the center of gravity of the seesaw is 32. The rear end of the plate 31 is biased so that the lower end of the ball screw 36 is always in surface contact with the upper surface of the block 37.

In addition, since the spring 42 also pushes the seesaw plate 31 downward, the lower end of the ball screw 36 is maintained in surface contact with the upper surface of the block 37.

Since the rotational friction is generated by the rotation of the ball screw 36 which is in surface contact, the block 37 is preferably made of a wear-resistant material such as alloy or cemented carbide to prevent wear.

On the other hand, when the helical die is ground, if the rotation axis (or forward rotation) of the motor 38 is rotated clockwise (or forward rotation) by the controller 26, the ball screw 36 is interlocked and the rear end of the seesaw plate 31 moves on the seesaw shaft. It is raised around the (32), the grinding wheel 22 is lowered and pressed in contact with the surface of the helical die jig is made by grinding, the helical die is advanced by the X-axis moving means 20, the predetermined length section Grinding is done.

On the contrary, when the machining position or the processing depth is changed, the helical die is reversed by the X-axis moving means 20, in which case the grinding operation must be stopped. Therefore, when the rotation axis of the motor 38 is rotated counterclockwise (or counter-rotated) by the controller 26, the ball screw 36 is interlocked and the rear end of the platen 31 is centered on the seesaw shaft 32. As it descends, the grinding wheel 22 is lifted up and spaced apart from the helical die, and thus the grinding operation is stopped, and the helical die is reversed by the X-axis moving means 20 controlled by the controller 26 to move to the next machining position. When this is completed, the grinding wheel 22 is lowered in the above process to the next grinding is made.

In addition, when the machining position is changed, when the reversed helical die moves by one pitch unit or a predetermined section by the Y-axis moving means 20 under the control of the controller 26, the grinding wheel 22 descends in the above-described process. Grinding takes place and automatic grinding is achieved by repeating this process.

On the other hand, as shown in Fig. 10, the upper and lower limit sensors 43 and 44 for preventing excessive rise or excessive lowering of the grinding wheel 22, and the grinding wheel 22 before the start of processing, The home sensor 34 for holding the home is installed. The sensors 43, 44, 45 are connected to the input of the controller.

The sensors 43, 44 and 45 are preferably infrared sensors so as not to be affected by visible light, and of course, other types of proximity or contact sensors or switches may be used.

The upper and lower limit sensors 43 and 44 and the origin sensor 45 respectively fixed to both sides of the table 33 may include, for example, a photo interrupt method, and these upper and lower limit sensors 43 and 44 may be used. ) And light blocking plates 46 and 47 entering and exiting the space formed between the light transmitting parts 43a, 44a and 45a and the light receiving parts 43b, 44b and 45b of the origin sensor 45 are the seesaw plates 31. It is fixed to the rear end.

Therefore, when the grinding wheel 22 excessively rises (when the tail of the seesaw plate is excessively lowered) while the motor 38 operates due to a malfunction or an incorrect operation, the light shielding plate 46 moving along the platen 31 is The lower limit limit signal is input to the controller 26 because the beam enters the space between the lower limit sensors 44 and blocks the beam incident from the light transmitting part 44a to the light receiving part 44b, and the controller 26 receives the alarm signal. And the motor 38 to output the stop signal at the same time and the grinding wheel 22 is no longer raised, thereby preventing failure or grinding failure.

On the contrary, in the case where the grinding wheel 22 is excessively lowered (when the tail of the plate is excessively raised) while the motor 38 is operated by a malfunction or an incorrect operation, the light shielding plate 46 moves along the platen 31. The upper limit limit signal 43 enters the space between the beams 43a and the beam incident to the light receiving portion 43b, so the upper limit signal is input to the controller 26, the controller 26 is an alarm signal And the motor 38 to output the stop signal at the same time and the fall of the grinding wheel 22 at the same time as the alarm is no longer prevented failure or grinding failure is prevented.

In addition, since the other light shielding plate 47 enters the space between the origin sensors 45 and blocks the beam incident from the light projector 45a to the light receiver 45b, the home signal is input to the controller 26. The controller 26 stops the motor 38 and maintains the home position. When grinding the helical die, the controller 26 moves on the seesaw while the trailing edge of the platen 31 moves up and down between the upper and lower limit sensors 43 and 44. To exercise.

The angle setting means 25 which determines the processing angle θ of the processing means 23 includes a flat plate 48 fixed on the base 25 and a shaft bar 49 fixed perpendicularly to one side of the flat plate 48. And, the table 33 is axially coupled to the shaft bar 49, the nut 50 is pivotally installed to be rotated to one side outside the table 33, the nut 50 is fastened to the handle and handle 51 Lead screw 52 having a), a support member 53 for supporting the lead screw 52 to rotate, and fixed to the outer side of the flat plate 48 and the support member 53 can be rotated A screw hole of the flat plate 48 that is fitted to the shaft member 54 which is axially installed to be secured, the arc-shaped long holes 55 and 56 formed on both sides of the edge of the table 33, and the long holes 55 and 56. And bolts 57 and 58 respectively fastened to (not shown).

The processing angle θ is preferably in the range of 0 ° to 45 °, and the flat plate 48 and the table 33 are tightly fixed by bolts 57 and 58 to prevent flow. Reference numeral 59 is an indentation groove formed in the flat plate 48 so that the nut 50 can move when setting the angle.

Therefore, the lead screw 52 is fixed by using the handle 51 in a state where the bolts 57 and 58 which closely contact the flat plate 48 and the table 33 are allowed to rotate. Rotate or reverse to rotate the table 33 at an appropriate angle out of the machining angle θ in the range of 0 ° to 45 ° around the shaft 49, and then tighten the bolts 57 and 58 to flatten the plate 48. And the table 33 is fixed so as not to rotate or flow, so the machining angle is determined (set), in this state, the helical die may be processed.

At this time, since the lead screw 52 and the nut 50 are respectively mounted on the flat plate 48 and the table 33 by the support member 53 and the shaft member 54, even if the angle of the lead screw 52 is displaced. The angle setting of the processing means 23 is easily achieved.

In the present invention, the setting angle θ of the processing means 23 can be precisely adjusted by using the electronic encoder 59 connected to the controller 26. Since this is a general matter, detailed description of the configuration and the effect will be omitted. .

The X-axis moving means 20 for advancing and reversing the jig means 17 in which the helical die is jig is moved in the longitudinal direction (X-axis direction) of the transfer table 16 is configured as follows.

Y-axis moving unit 19 having an index and an index motor 19 and a jig unit 17 and the like are installed, and the transfer table 16 is transported so as to slide in the longitudinal direction (X-axis direction). A guide 60 coupled to the lower portion of the base 16 in the longitudinal direction, an auxiliary guide 61 fixed to the lower portion of the guide 60, and the transfer table 16 slide forward and backward in the Y-axis direction. A pedestal 62 coupled to the auxiliary guide 61 so as to be able to move, a lead screw 63 axially coupled to the lower portion of the pedestal 62, and a lead screw 63 are fastened and fixed to the pedestal 15. The nut 64, the motor 65 fixed to one side of the feed table 16, and the ball screw which is horizontally fastened to the auxiliary guide 61 and coupled to the rotation shaft of the motor 65 66, a bevel gear 67 fixed to an upper end of the lead screw 63, another bevel gear 68 engaged with the bevel gear 67, and a bevel gear 68 It consists of a shaft 70 protruding out of the pedestal 62 and a handle 70 having a handle coupled to the shaft rod 69 end.

And the rear part of the pedestal 62 is vertically coupled to the female and female slides (15a, 62a) of the triangular structure formed on the base (15) and the pedestal 62, respectively, is a configuration that the carriage 16 can be lifted, the pedestal The upper portion of the 62 is horizontally coupled to the female and female slides (61a, 62b) of the triangular structure formed on the portion of the auxiliary guide 61 and the pedestal 62 is the configuration that the carriage 16 can move forward and backward.

On the other hand, on both sides of the guide 60, forward and reverse limit switches 71 and 72 are provided to prevent excessive forward and backward movement of the carriage 16, and both sides of the carriage 16 are forward and backward. The operating members 73 and 74 for operating the limit switches 71 and 72 are respectively provided. The actuating members 73 and 74 move along the carriage 16 and are located inside the forward and backward limit switches 71 and 72, respectively.

In addition, the forward and backward limit switches 71 and 72 are connected to the input of the controller 26, and instead of the switch, an infrared sensor or other proximity sensor or a contact sensor or a switch that does not receive visible light interference may be used. It may be.

Therefore, when the feeder 16 is excessively advanced while the motor 65 is operating due to a malfunction or an incorrect operation, the operation member 74 located at the front end is operated while contacting the forward limit switch 72 so that the forward limit signal is generated. Input to the controller 26, the controller 26 outputs the alarm signal and the motor 65 stop signal at the same time, and the carriage 26 is no longer advanced to prevent failure or grinding failure.

On the contrary, when the feeder 16 excessively retracts while the motor 65 operates due to a malfunction or misoperation, the reverse limit signal is controlled while the operating member 73 located at the rear end contacts the reverse limit switch 71. The controller 26 outputs an alarm signal and a motor 65 stop signal at the same time, and the carriage 26 is no longer reversed, thereby preventing failure or grinding failure.

In addition, near the forward limit switch 72, the home sensor 81 for holding the origin of the transfer table 16 is installed. The origin sensor 81 connected to the input of the controller 26 is preferably an infrared sensor that is not subject to visible light interference, and of course other proximity or contact sensors or switches thereof may be used.

The home sensor 81 may be, for example, a photo interrupt method, and the light blocking plate 82 entering and exiting into a space formed between the light transmitting unit 81a and the light receiving unit 81b of the home sensor 81 may be a transfer table 16. ), And the light shielding plate 82 enters the space between the origin sensors 81 and blocks the beam incident from the light transmitting portion 81a to the light receiving portion 81b. 26), the controller 26 stops the motor 38 and is kept in the home position. When grinding the helical die, the carriage 16 moves between the forward and backward limit switches 71 and 72. It will reciprocate.

On the other hand, since the ring die 4 and the segment 5 have different heights, that is, the machining positions are different, it is necessary to appropriately adjust the height of the feed table 16 accordingly.

For example, when processing the auxiliary dice 5 with a low height, it is necessary to raise the conveyance base 16. FIG. In this case, when the operator rotates the handle 70 clockwise (or forward rotation), the bevel gears 67 and 68 engaged with each other rotate, and the lead screw 63 rotates clockwise (or forward rotation). By pushing up the pedestal 62, the support die 16 and the auxiliary dice 5 installed on the transport stand 16 are raised. When the auxiliary die 5 is raised to the machining position, the handle 70 is rotated. Stop and grind.

And when processing the ring die 4 which is higher than the auxiliary dice 5, it is necessary to lower the conveyance stand 16, In this case, an operator rotates the handle 70 counterclockwise (or Reverse rotation), the bevel gears 67 and 68 engaged with each other rotate, and the lead screw 63 rotates counterclockwise (or reverse rotation) so that the pedestal 62 is pulled down. The ring die 4 installed in the carriage 16 is raised, and when the ring die 4 is raised to the machining position, the rotation of the handle 70 may be stopped and then ground.

At this time, the rear portion of the pedestal 62 is coupled to the female and female slides 15a and 62a of the triangular structure formed on the base 15 and the pedestal 62, respectively, so as to vertically slide without flow or positional deviation.

Y-axis moving means (19) having an index and an index motor is installed on the fixing member (71a), and the fixing member (71a) is installed on the conveyance table (16) so that the Y-axis moving means (19) and the jig means ( 17) and the helical dice are moved along the conveyance table 16, and the jig means 17 in which the ring die 4 or the auxiliary die 5 is jig (clamped) on one side of the Y-axis moving means 19. This is installed.

The index causes the ring dice 4 or auxiliary dice 5 driven by the servomotor (not shown) to move in the + Y axis and -Y axis directions. Since the Y-axis moving means 19 by the index is a technology used in other industries, a detailed description or illustration will be omitted.

FIG. 16 is a perspective view showing, as an example, a jig means 17 installed on one side of the Y-axis moving means 19 so that the auxiliary dice 5 can be jig, and FIG. 17 is a plan view thereof.

The auxiliary dice jig means is composed of a shaft portion (72a) coupled to the Y-axis movement means 19, an arm (73a) extending to one side of the lower portion of the shaft portion (72a), and a fastening portion formed at the end of the arm (73a) do. Coupling grooves 74a are formed in the fastening portion so that the auxiliary dice 5 can be coupled to each other, and support plates 75, 76 and 77 are fastened to front and rear ends of the coupling grooves 74a, respectively. Then, a plurality of bolts 78 are fastened to one side of the support plate 75. When the auxiliary die 5 is inserted into the coupling groove 74a and then the bolt 78 is tightened, the auxiliary die 5 is rearward. While being in close contact with the support plate 76, it is firmly fastened.

When the auxiliary die 5 is jig, the machining angle of the processing means 23 located at the upper portion is set and then the inner circumferential surface of the auxiliary die 5 is processed while the seesaw movement. Loosen to release the fastening state and then separated from the coupling groove (74a). The coupling groove 74a is an arc shape having a narrow top and a wide bottom like the auxiliary dice 5, and the support plates 75, 76 and 77 may be fastened using welding or bolts.

FIG. 18 is a side view showing an example of the jig means 17 installed on one side of the Y-axis moving means 19 so that the ring die 4 can be jig and FIG. 19 is a front view thereof.

The ring die jig means is composed of a shaft portion 79 coupled to the Y-axis moving means 19, the chuck 80 is coupled to the shaft portion 79, the ring die 4 on the outer circumference of the chuck 80 Combined and fixed to process the outer peripheral surface of the ring die (4).

That is, when the ring die 4 is jig, it sets the processing angle of the processing means 23 located on the upper portion and then processes the inner circumferential surface of the ring die 4 while performing the seesaw movement. What is necessary is just to isolate | separate from the chuck 80 using etc.

FIG. 20 is a developed view of rolling blades 5a and 5b formed on the surface of the auxiliary dice 5 at an angle θ 2 and at a set pitch P, and FIG. 21 is a rolling blade on the surface of the auxiliary dice 5. It is a top view of the state which is processing (5a) (5b), and FIG. 22 is a front view of the state which is processing the rolling edge 5a (5b) on the surface of the auxiliary dice 5.

Looking at the grinding process of the auxiliary dice 5, the auxiliary dice 5 fixed to the jig means 17 is advanced in the X-axis direction in the state in which the grinding angle θ 2 is set by the angle setting means 25 The grinding wheel 22 which rotates at a high speed by the Z-axis movement means 24 descends and is pressed while contacting the surface of the auxiliary dice 5 to perform grinding.

The rolling blades 5a and 5b are linearly ground at a predetermined angle θ 2 to the inner peripheral surface of the auxiliary die 5 in a curved state, and are ground with the inner peripheral surface of the auxiliary die 5 as the grinding wheel 22 is advanced. The right angle state of the wheel 22 is not maintained, but is always perpendicular to the surface of the auxiliary die 5 while moving (rotating) in the Y-axis direction when the grinding wheel 22 is advanced by the Y-axis moving means 24. The state is processed. That is, the rolling blades 5a and 5b are ground at right angles to the surface of the auxiliary dice 5 by the combined motion of the X, Y and Z-axis moving means 19, 20 and 24.

23 is a processing flowchart showing an example of the present invention.

Prepare the work by casting the die to be processed into the processing device (S1 step),

Work environment such as X-axis working start point, X-axis working distance, X-axis working speed, Y-axis pitch, Y-axis pitch number, Y-axis pitch angle, Z-axis position, grinding wheel once descending distance, number of repetitions Setting) (step S2), the grinding wheel moves to the origin (step S3), the machining starts (step S4), and the number of pitches is set by the number of pitches at the starting point of the X-Y axis by the number of pitches. Step of grinding the die by repeating the operation while moving along the axis (step S5), and if the number of machining cycles has reached the set number of cycles, if the number of machining cycles has not reached the set number of cycles, the process returns to the grinding step (S5) and the number of machining cycles. When has reached the set number of times, the operation is terminated (step S6).

Looking at the working process of an example of the present invention.

1. Preparation for operation

Before starting the automatic operation, set the specifications required for the production of the product and mount the die to be processed.

1) process number

Depending on the product specification, data can be stored in 50 (0 ~ 49) process numbers and the process number must be selected first. Each process number contains the detailed working conditions already saved and saved in the Parameter Setting step.

2) X axis setting

  a. Set starting point

  -Set work start point from the machine origin

  b. Working distance

  -Working distance from starting point

  c. Working speed

  -Working speed per minute

3) Y axis setting

 a. Set starting point

 b. Pitch

  Distance between each pitch

 c. Pitch number

  -Total pitch

 d. Pitch angle

  -Inclined angle to the horizontal direction of the pitch

4) Z axis setting

a. Set starting point

  -Manually set the axis of the grinding wheel while looking at the display.

  -The angle from the origin is displayed in the horizontal direction of the grinding wheel.

4) One-time descending distance of the grinding wheel

  -The distance to descend in the vertical direction after one cycle has been completed.-The grinding depth.

5) Repeat count

  -After one cycle work as many times as the number of repetition, it adds depth by one falling distance of the set grinding wheel one time.

2. Operation Mode

One). manual

  -Each axis can be moved at jog speed using manual button (jog shuttle).

2). Automatic

  -It operates automatically according to the setting of the selected process number and the power is automatically cut off when the work is completed.

3. Auto driving flowchart

1) Select process number and enter data.

2) Material loading.

3) Perform homing in manual mode.

4) Auto start in auto mode.

5) Start work at the starting point of each axis.

  -Y axis is linked with X axis as reference axis.

6) Each axis returns to its original position after moving the X axis.

  -X axis operates repeatedly between starting point and moving distance.

  -Y axis moves according to X axis moving speed and pitch angle.

  -Starting point of Y axis moves starting point by pitch after 1 cycle.

  -Z axis operates the starting point and starting point repeatedly, and it works as much as the number of pitches of Y axis and then descends as much as the grinding wheel descending distance. The depth is added to the Z axis by the set number of repetitions, and the die is ground by repeating the grinding process.

In addition, the present invention may be divided into a work preparation process and an automatic grinding process.

In case of work preparation process, it is subdivided into 1) work process selection, 2) input and check of production setting value, 3) return to origin of each axis,

In case of automatic grinding process, 1) Grinding wheel drive, 2) Move to Z-axis starting point, 3) X-axis moves at set speed from the starting point of X-axis to the set working distance, 4) Y-axis is connected with pitch angle and X-axis speed 5) Z-axis lowers after working as much as the set number of pitches and grinds the dice while adding depth of grinding according to the number of repetitions.

24 is a circuit block diagram of the controller 26 shown as an example of the present invention.

Forward limit switch 72 which clamps the forward limit of feeder 16 to the input of the control part 83 comprised of a central processing unit (CPU), etc., and reverse limit switch which interrupts the reverse limit of feeder 16. (71), the lower limit sensor 44 for detecting the lower limit of the grinding wheel 22, the upper limit sensor 43 for detecting the upper limit of the grinding wheel 22, and the origin of the grinding wheel 22 A home sensor 45 for detecting a position, a home sensor 81 for detecting the home position of the feed table 16, an electronic encoder 59 for precisely adjusting the set angle of the processing means 23, The setting unit 84 which can input and set various processing conditions, various data, etc. using a keypad is connected, respectively, and the output of the said control part 83 is a set value, an input value, a present value, current time, processing time, remaining time, The display unit 85 displaying various numerical values, the grinding wheel 22, and the motor 27 and the grinding wheel 22 are lifted at high speed. And the surface of the helical die is always perpendicular to the motor 38 for lowering, the motor 65 for reciprocating the carriage 16, and the grinding wheel 22 being the Y axis. An index motor 86 for maintaining a state, an alarm unit 87 for recognizing a variety of operating states or abnormal states, audible, visual or auditory and visual, and communicating with a computer or controlling a computer or a remote site. The communication interface 88 and the print output unit 89 which can print out various data are connected. In the present invention, for convenience of use, the display unit 85 may use a touch screen.

In the above, the motors 27, 38, 65, 86 have respective motor drives, and the grinding wheel 22, the lifting motor 38, the carriage 16, the forward and backward motors 65, which require precise control. The index motor 86 is preferably a servo motor, and the motor 38 for rotating the grinding wheel 22 at high speed is preferably an inverter motor speed-controlled by the controller 26.

According to the present invention, the die can be automatically ground and processed by the combined movement of the X, Y, and Z-axis moving means in an unmanned operation for 24 hours, thereby greatly improving productivity and quality, and the defects are almost eliminated.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention, and this is in the technical field to which the present invention belongs. It is self-evident to those of ordinary knowledge.

As described above, the present invention has an effect such that the die is automatically ground by unmanned operation for 24 hours by the combined motion of the X, Y, and Z-axis moving means, thereby greatly improving productivity and quality and almost eliminating the defective rate.

Claims (11)

A transfer table provided on the base and having a lifting means, a die jig means provided on one side of the transfer table, a Y axis moving means for moving the jig means to the Y axis, and the jig to move the dice to the X axis. X-axis moving means, processing means for grinding the die by rotating the grinding wheel at high speed, Z-axis moving means for contacting the die only when the grinding means by grinding the processing means, and the grinding wheel A helical die processing apparatus comprising an angle setting means for setting a machining angle, a sensing means and a controller. The method according to claim 1; The Z-axis moving means includes a seesaw plate on which a processing means is fixed to an upper end surface, a seesaw shaft rod installed at a center portion of the seesaw plate, a pair of bearings fixed to one side of a table top to support the seesaw shaft rod, and the seesaw A nut fixed to a rear end of the plate, a ball screw vertically fastened to the nut, a block fixed to the upper surface of the table and having a lower surface contacted by a ball screw, a rotation shaft of a motor connected to an upper end of the ball screw, Helical die processing consisting of a guide rod fixed to one side of the fixed plate of the motor vertically, a guide rod bearing is coupled to the guide rod is fixed to the seesaw plate, and a spring installed on the bottom surface of the motor fixed plate and the top plate plate Device. The method according to claim 2; Upper and lower limit sensors are installed on both sides of the table to prevent excessive rise and fall of the grinding wheel, and the origin sensor to hold the origin of the grinding wheel, and the upper and lower limit sensors and the permeation sensor of the origin sensor are installed on both sides of the plate. Helical die processing device by installing a light shield plate to enter and exit the space between the miners. The method according to claim 1 or 2; The angle setting means includes a flat plate fixed on the base, a shaft fixed vertically to one side of the flat plate, a table axially coupled to the shaft, a nut pivotally installed on one side of the outside of the table, and the nut A lead screw that is fastened and has a handle, a support member for supporting the lead screw to rotate, a shaft member fixed to an outer side of the plate and pivotally mounted so that the support member can rotate, and an edge portion of the table A helical die processing apparatus comprising an arc-shaped long hole formed on both sides and a bolt fitted into the long hole and fastened to a screw hole of a flat plate to set a machining angle ( θ ) of 0 ° to 45 °. The method according to claim 1 or 2; The X-axis moving means includes a feeder on which a jig means is installed, a guide coupled to the lower longitudinal direction of the feeder, an auxiliary guide fixed to the lower portion of the guide, and the feeder moves forward and backward in the Y-axis direction. A pedestal coupled to the auxiliary guide for sliding movement, a lead screw axially coupled to the lower portion of the pedestal, a motor fixed to one side of the carriage, and a horizontal shaft fastened to the auxiliary guide, Helical die processing machine consisting of a lead screw to be engaged. The method according to claim 5; On both sides of the guide, forward and reverse limit switches are installed to prevent excessive forward and backward movement of the carriage, and operating members for operating the forward and reverse limit switches are installed on both sides of the carriage, and the origin of the carriage is located on one side of the carriage. A helical die processing apparatus having a home sensor for holding, and a light shielding plate installed at one end of the transfer table to enter and exit the space between the light receiving units of the home sensor. The method according to claim 1 or 2; Y-axis moving means having an index and an index motor, helical die processing apparatus, characterized in that configured to be moved along the conveyer by installing on a fixed member on the conveyer. The method according to claim 1 or 2; The die jig means includes a shaft portion coupled to the Y-axis moving means, an arm extending to one side of the shaft portion, a fastening portion configured at the arm end portion, a die engaging groove formed at the fastening portion, and the front and rear of the die coupling groove. And a plurality of support plates fastened to the end portions, and a plurality of bolts fastened to the one side support plate. The method according to claim 1 or 2; The die jig means is a helical die processing device composed of a shaft portion coupled to the Y-axis moving means and a chuck coupled to the shaft portion. The method according to claim 1 or 2; The controller controls the forward limit switch to clamp the forward limit of the carriage to the control input, the reverse limit switch to clamp the backward limit of the carriage, the lower limit sensor to detect the lower limit of the grinding wheel, and the upper limit of the grinding wheel. The upper limit limit sensor, the home sensor to detect the home position of the grinding wheel, the home sensor to detect the home position of the feeder, the electronic encoder to precisely adjust the set angle of the processing means, Setting units capable of inputting and setting data are respectively connected; A display unit displaying set values, input values, data and time on the output of the control unit, a motor for rotating the grinding wheel at high speed, a motor for elevating the grinding wheel, a motor for reciprocating the feed table, and a grinding wheel Y A helical die processing device consisting of an index motor that moves to an axis and maintains the grinding wheel and die surface at a right angle, an alarm unit for alarming an operating state and an abnormal state, and a communication interface. Jig to prepare a die to be processed; Setting the X axis working start point, the X axis working distance, the X axis working speed, the Y axis pitch, the Y axis pitch number, the Y axis pitch angle, the Z axis position, the one-time descending distance of the grinding wheel, and the number of times of repeated machining; Moving the grinding wheel to the origin; Machining the die surface with a grinding wheel rotating at high speed; Grinding the dice in a repeating operation while moving along the X and Y axes by the number of pitches by the set value at the start point of the X and Y axes; Determining whether the number of machining cycles has reached the set number of times, and if the number of machining cycles has not reached the set frequency, returning to the grinding step and ending the operation if the number of machining cycles reaches the set frequency; Helical die processing method

Images