KR102613735B1 - Broach Tool Module for Guided Weapon Machining on a Machining Center - Google Patents

Abstract

The present invention relates to a broach tool module for processing the cover of a guided weapon drive device using a machining center, which has an improved structure so that the tool holder mounted on the spindle of the machining center is simply restrained in the direction of rotation by a dog pin and a dog holder, enabling machining The slotting process can be performed using the center and the tool holder already in use. In particular, the left-right movement of the broach tool is prevented while machining the keyway due to the up and down reciprocating movement of the broach tool, thereby improving slotting precision. The main composition includes a jig part (10), a broach tool (20), a dog body (30), a dog pin (40), and a dog holder (50).

Description

Broach tool module for machining the cover of a guided weapon drive device using a machining center {Broach Tool Module for Guided Weapon Machining on a Machining Center}

The present invention relates to a broach tool module for processing the cover of a guided weapon drive device using a machining center. More specifically, the structure is improved so that the tool holder mounted on the spindle of the machining center is simply bound in the direction of rotation by a dog pin and a dog holder. Therefore, the slotting process can be performed using a machining center and an existing tool holder. In particular, the left-right movement of the broach tool is prevented during keyway processing by the up-and-down reciprocating movement of the broach tool, improving slotting precision. It relates to a broach tool module for processing the cover of a guided weapon drive device using a machining center that can achieve.

Typically, mechanical parts such as shafts, gears, and pulleys are provided with dog grooves that can be fixed by inserting a key into the connected parts so that rotational force can be transmitted from another power transmission device. These dog grooves are slotted. processed by a machine.

Here, the slotting machine fixes the workpiece on the table, and the broach (bite), which is a cutting tool, moves up and down by the ram to cut one side of the inner diameter of the workpiece. At this time, the broach is used to wear and dog groove standards. However, since most broaches are fixed by bolting and it takes a lot of time to disassemble and assemble, it is not easy to attach or remove them.

Accordingly, in the previously disclosed utility model No. 20-2020-0000517, a first member having a flat portion formed on one side; and a second member having a smaller diameter than the first member, wherein the second member has an insertion hole formed toward one side of the front end into which a bite is inserted, and has an insertion hole on one side of the rear end corresponding to the insertion hole. A technology for forming a discharge hole communicating with the insertion hole has previously been proposed.

However, the prior art is intended to greatly improve workability by making it easy to separate the bite mounted on the bite fixture, but in order to perform the slotting process, the workpiece must be dedicated after completing the preceding cutting process (milling processing). Because it had to be moved to slotting equipment, the work was cumbersome and productivity was reduced.

KR 20-2020-0000517 U (2020.03.10.)

Accordingly, the present invention was conceived to solve the above-mentioned problems, and the structure of the tool holder mounted on the spindle of the machining center has been improved so that it is simply restrained in the rotation direction by a dog pin and a dog holder, so that it can be used in machining centers and existing devices. The slotting process can be performed using a tool holder, and in particular, the machining center can improve slotting precision by preventing the left-right movement of the broach tool while processing the keyway by the up-and-down reciprocating movement of the broach tool. The purpose is to provide a broach tool module for processing the cover of a guided weapon drive device.

In order to achieve this purpose, the feature of the present invention is to clamp the outer diameter of the workpiece (W), which is installed on the machining center table (1), so that the inner diameter hole (W1) of the workpiece (W), which is a cover part of the guided weapon drive device, faces the longitudinal direction. jig part (10); A broach tool (20) provided to be mounted on a tool holder (3) fastened to the spindle (2) of a machining center; A dog body (30) in which a center hole (31) is formed to fit into the outer peripheral surface of the tool holder (3), and a multi-hole (32) is formed at a position spaced apart from the center hole (31); A dog pin (40) inserted and fixed into the multi-hole (32) of the dog body (30) and provided parallel to the rotation axis of the tool holder (3); and a dog installed on the bottom of the headstock (4) of the machining center that rotatably supports the spindle (2), and in which a dog groove (51) is formed to couple with the dog pin (40) to restrain the tool holder (3). It includes a holder (50), and when the tool holder (3) is mounted on the spindle (2) of the machining center, the dog pin (40) engages with the dog groove (51) of the dog holder (50) and the tool holder (3) ) and the spindle (2) is provided to be restrained to the headstock (4).

At this time, the jig part 10 is mounted on the table 1 and includes a base plate 11 on which a pair of guide rails 11a are formed in parallel on the upper surface, and a screw installed between the guide rails 11a. The housing 12 and the screw housing 12 are constrained to freely rotate, and right- and left-hand threaded parts 13a and 13b are formed on both sides based on the screw housing 12, and each axle 13c is provided at both ends. A pair of screws (13) that are linearly transported along the guide rail (11a), are screwed to the right and left thread parts (13a) and (13b) respectively, and are linked to the rotational movement of the screws (13) and are transported in opposite directions to each other. It includes a slide block 14 and a clamp arm 15 each installed on the slide block 14 and on which a jaw 15a is installed to clamp the outer peripheral surface of the workpiece W, and between the jaws 15a. When the workpiece (W) is loaded and a tool is fastened to each axis (13c) of the screw (13) and rotated, a pair of slide blocks (14) are transferred in opposite directions to each other due to the rotational movement of the screw (13). It is characterized in that the workpiece (W) is provided to be clamped by a pair of jaws (15a).

In addition, the broach tool 20 includes a handle 21 mounted on the tool holder 3, and a neck portion extending downward from the handle 21 and having a reduced diameter compared to the handle 21 ( 22) and first and second blade parts 23 (23') installed on the lower outer peripheral surface of the neck part 22 at equal intervals of 180°, and the broach tool 20 reciprocates up and down together with the headstock 4. It moves, and the jig part 10 is transferred in one direction by the table 1, so that the first blade part 23 cuts the inner diameter hole W1 of the workpiece W and processes the primary key groove K1. , After the first keyway (K1) is completed, the jig part (10) is transferred to the other side by the table (1) and the second blade part (23') cuts the inner diameter hole (W1) of the workpiece (W) to form 2. It is characterized in that it is provided to process the car keyway (K2).

In addition, the broach tool 20 includes a handle 21 mounted on the tool holder 3, and a neck portion extending downward from the handle 21 and having a reduced diameter compared to the handle 21 ( 22), a downward blade portion 24 on the lower outer peripheral surface of the neck portion 22, and an upward blade portion 24' formed on the lower outer peripheral surface of the neck portion 22 to correspond to a 180° equiangular position with the downward blade portion 24. , the broach tool 20 reciprocates up and down together with the headstock 4, and when the headstock 4 is moved downward, the jig part 10 is transferred in one direction by the table 1 to form a downward blade portion. As (24) is transported downward, the inner diameter hole (W1) of the workpiece (W) is cut to machine the primary keyway (K1), and when the headstock (4) is transported upward, the jig portion is moved by the table (1). (10) is transported in the other direction, and the upward blade portion 24' is transported upward, cutting the inner diameter hole (W1) of the workpiece (W) and processing the secondary keyway (K2).

In addition, a reinforcing bar 25 is formed on the lower outer peripheral surface of the neck 22, and the reinforcing bar 25 includes the first and second blade parts 23 (23') and the upper and lower blade parts 24 (24') and 90'. ˚ It is formed at an equal angle position, and the lower section of the neck 22, where the first and second blades 23 (23') and the upper and lower blades 24 (24') are formed by the reinforcing bar 25, is other. It is characterized by being provided so that the cross-sectional area is expanded compared to the section.

In addition, a sensor 52 is installed on the dog holder 50 corresponding to the dog groove 51, and the sensor 52 is provided to detect the dog pin 40 inserted into the dog groove 51. , the dog pin 40 is provided so that the stretching feed force is applied by the elastic body while the stretching length is adjusted, and when the tool holder 3 is mounted on the spindle 2, the dog groove 51 and the dog pin 40 ) are mismatched, the dog pin (40) is reduced and transferred, and if the dog pin (40) is not detected by the sensor (52) due to the reduced transfer of the dog pin (40), it is determined that the tool holder (3) is not installed properly. , It is characterized by being equipped to output emergency stop and notification signals.

In addition, the dog pin 40 is provided to be located in the center of the inside of the dog groove 51 by the docking correction module 60, and the docking correction module 60 is formed in the center of the dog pin 40, and the upper A vertical rod hole 61 provided to be open in the direction, a push rod inserted into the vertical rod hole 61 to exert an upward transport force by an elastic body, and a pair of inclined cams 62a formed on the outer peripheral surface. (62), a pair of horizontal rod holes 63 perpendicular to the vertical rod hole 61 and transversely penetrating on the dog pin 40, and inserted into the horizontal rod hole 63 by an elastic body. A stretching transport force acts, the stretching movement distance is limited by the pin (64a) and the long hole (64b), a cam surface (64c) is formed at one end to perform cam movement with the inclined cam (62a), and a mill piece (64d) is formed at one end. ) is formed and includes a pair of push pieces 64 provided to press the inner peripheral surface of the dog groove 51, and when the tool holder 3 is mounted on the spindle 2, the dog pin 40 is formed into a dog groove ( 51) When entering the inside, the push rod 62 is contracted and transported in a pressurized state on the inner peripheral surface of the dog groove 51, and a pair of wheat pieces 64 are formed due to cam movement between the inclined cam 62a and the cam surface 64c. At the same time, the tool holder 3 is provided to correct the angle of the tool holder 3 so that the dog pin 40 is positioned at the center of the dog groove 51 by being pressed against the inner peripheral surface of the dog groove 51 while being stretched and transferred.

In addition, the dog pin 40 is formed in a reduced size compared to the dog groove 51 to form a gap, and the gap is provided to be closed by a gap compensation module 70, wherein the gap compensation module 70, A horizontal guide pin 71 is installed on the dog body 30 and is provided to be perpendicular to the dog pin 40, and a plurality of guide pins are disposed on both sides of the dog pin 40 and are moved up and down on the horizontal guide pin 71. A gap disk 72 in which a guide hole 72a is formed, a first floating magnet 73 formed at the lower end of the gap disk 72, and a second floating magnet 74 formed at the upper end of the gap disk 72. , a first fixed magnet (75) installed on the dog body (30) to correspond to the first floating magnet (73), which exerts a repulsive force with the first floating magnet (73) to support the gap disk (72) in an upwardly moving state. ), a second floating magnet 74 installed inside the dog groove 51 and provided on the gap disk 72 inserted into the dog groove 51, and a second fixed magnet 76 on which an attractive force acts. Included, when the tool holder 3 is mounted on the spindle 2, the dog pin 40 corresponding to the dog groove 51 area and at least one gap disk 72 are inserted into the dog groove 51. It is characterized in that it is provided so that the gap is eliminated.

According to the above configuration and operation, the present invention improves the structure so that the tool holder mounted on the spindle of the machining center is simply restrained in the rotation direction by the dog pin and the dog holder, so that it can be used using the machining center and the existing tool holder. A slotting process can be performed, and in particular, the left-right movement of the broach tool is prevented while processing the keyway by the up-and-down reciprocating motion of the broach tool, which has the effect of improving slotting precision.

Figure 1 is a perspective view showing the overall broach tool module for processing a guided weapon drive device cover using a machining center according to an embodiment of the present invention.
Figure 2 is a schematic diagram showing the overall configuration from the front of a broach tool module for processing a guided weapon drive device cover using a machining center according to an embodiment of the present invention.
Figure 3 is a perspective view showing a jig portion of a broach tool module for processing a guided weapon drive device cover using a machining center according to an embodiment of the present invention.
Figure 4 is a configuration diagram showing a broach tool of a broach tool module for processing a guided weapon drive device cover using a machining center according to an embodiment of the present invention.
Figures 5 and 6 are configuration diagrams showing the operating state of processing a keyway using a broach tool of a broach tool module for processing a cover of a guided weapon drive device using a machining center according to an embodiment of the present invention.
Figure 7 is a configuration diagram showing a dog pin detection sensor of a broach tool module for processing a guided weapon drive device cover using a machining center according to an embodiment of the present invention.
Figure 8 is a configuration diagram showing the docking correction module of the broach tool module for processing the cover of the guided weapon drive device using a machining center according to an embodiment of the present invention.
Figure 9 is a configuration diagram showing the gap compensation module of the broach tool module for processing the cover of the guided weapon drive device using a machining center according to an embodiment of the present invention.
Figure 10 is a configuration diagram showing the operating state of the gap compensation module of the broach tool module for processing the cover of the guided weapon drive device using a machining center according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Also, in describing the present invention, if it is determined that related known functions may unnecessarily obscure the gist of the present invention as they are obvious to those skilled in the art, the detailed description thereof will be omitted.

Figure 1 is a perspective view showing the overall broach tool module for processing a guided weapon drive device cover using a machining center according to an embodiment of the present invention, and Figure 2 is a guided weapon drive device cover using a machining center according to an embodiment of the present invention. It is a configuration diagram showing the entire broach tool module for machining from the front, and Figure 3 is a perspective view showing the jig portion of the broach tool module for machining the cover of a guided weapon drive device using a machining center according to an embodiment of the present invention, and Figure 4 is a view showing the jig portion of the broach tool module of the present invention. It is a configuration diagram showing a broach tool of a broach tool module for processing a guided weapon drive device cover using a machining center according to an embodiment of the present invention, and Figures 5 and 6 show a guided weapon drive device cover using a machining center according to an embodiment of the present invention. It is a configuration diagram showing the operating state of processing a keyway using a borroch tool of a broach tool module for machining, and Figure 7 is a diagram showing the dog pin detection of a broach tool module for machining a guided weapon drive device cover using a machining center according to an embodiment of the present invention. It is a configuration diagram showing the sensor, and Figure 8 is a configuration diagram showing the docking correction module of the broach tool module for processing the cover of the guided weapon drive device using a machining center according to an embodiment of the present invention, and Figure 9 is an embodiment of the present invention. It is a configuration diagram showing the gap compensation module of a broach tool module for processing a guided weapon drive device cover using a machining center according to , and Figure 10 is a diagram showing the broach tool module for processing a guided weapon drive device cover using a machining center according to an embodiment of the present invention. This is a configuration diagram showing the operating status of the gap compensation module.

The present invention relates to a broach tool module for processing the cover of a guided weapon drive device using a machining center, which has an improved structure so that the tool holder mounted on the spindle of the machining center is simply restrained in the direction of rotation by a dog pin and a dog holder, enabling machining The slotting process can be performed using the center and the tool holder already in use. In particular, the left-right movement of the broach tool is prevented while machining the keyway due to the up and down reciprocating movement of the broach tool, thereby improving slotting precision. The main composition includes a jig part (10), a broach tool (20), a dog body (30), a dog pin (40), and a dog holder (50).

The jig part 10 according to the present invention is installed on the machining center table 1, and clamps the outer diameter of the workpiece W, which is a cover part of a guided weapon drive device, so that the inner diameter hole W1 faces the longitudinal direction.

In FIG. 3, the jig part 10 is mounted on the table 1 and is installed between the base plate 11, on which a pair of guide rails 11a are formed in parallel on the upper surface, and the guide rail 11a. A screw housing 12 is freely rotated by being restrained by the screw housing 12, and right and left threaded parts 13a and 13b are formed on both sides based on the screw housing 12, and each axis 13c is formed at both ends. It is transported in a straight line through the screw 13 provided and the guide rail 11a, and is screwed to the right and left thread parts 13a and 13b, respectively, and is linked to the rotational movement of the screw 13 and is transported in the opposite direction. It includes a pair of slide blocks 14 and a clamp arm 15 each installed on the slide blocks 14 and on which a jaw 15a is installed to clamp the outer peripheral surface of the workpiece W.

Then, when the workpiece (W) is loaded between the jaws (15a) and the tool is fastened to each axis (13c) of the screw (13) and rotated, a pair of slide blocks ( 14) are provided so that the workpiece W is clamped by a pair of jaws 15a while being transferred in opposite directions.

In this way, the pair of jaws 15a are linked by the rotational movement of the screw 13 and are clamped while being pitched, so that even if the outer diameter standard of the outer diameter workpiece W is changed, it is avoided to match the center of the jig portion 10. Versatility in loading the workpiece (W) is provided.

In addition, the broach tool 20 according to the present invention is provided to be mounted on a tool holder 3 fastened to the spindle 2 of a machining center.

As an example, as shown in Figure 5, the broach tool 20 has a shank 21 mounted on the tool holder 3, extends downward from the shank 21, and is reduced compared to the shank 21. It includes a neck portion 22 formed with a diameter, and first and second blade portions 23 (23') installed at equal intervals of 180° on the lower outer peripheral surface of the neck portion 22.

Looking at the operating state, the broach tool 20 reciprocates up and down together with the headstock 4, and the jig part 10 is transferred in one direction by the table 1 as shown in Figure 5 (a) to form the first blade part. (23) processes the primary keyway (K1) by cutting the inner diameter hole (W1) of the workpiece (W).

And, after the first keyway (K1) is completed, as shown in FIG. 5 (b), the jig part (10) is transferred to the other side by the table (1) and the second blade part (23') is moved to the workpiece (W). It is equipped to process the secondary keyway (K2) by cutting the inner diameter hole (W1).

As another embodiment, as shown in FIG. 6, the broach tool 20 has a handle 21 mounted on the tool holder 3, and extends downward from the handle 21, compared to the handle 21. A neck portion 22 formed with a reduced diameter, a downward blade portion 24 on the lower outer peripheral surface of the neck portion 22, and an upward blade portion formed on the lower outer peripheral surface of the neck portion 22 to correspond to a 180° isometric position with the downward blade portion 24. Includes blade portion (24').

Looking at the operating state, the broach tool 20 reciprocates up and down together with the headstock 4, and when the headstock 4 is moved downward, it is moved to the jig by the table 1, as shown in Figure 6 (a). The part 10 is transferred in one direction and the downward blade part 24 is transferred downward, cutting the inner diameter hole W1 of the workpiece W to form the primary key groove K1.

And, when the headstock 4 is transferred upward, as shown in Figure 6 (b), the jig part 10 is transferred to the other side by the table 1, and the upward blade part 24' is transferred upward, and the workpiece ( W) It is provided to process the secondary keyway (K2) by cutting the inner diameter hole (W1).

In Figure 4, a reinforcing bar 25 is formed on the lower outer peripheral surface of the neck 22, and the reinforcing bar 25 includes the first and second blade parts 23 (23') and the upper and lower blade parts 24 and (24'). It is formed at an equiangular position of 90°.

The lower section of the neck 22, where the first and second blades 23 and 23' and the upper and lower blades 24 and 24' are formed by the reinforcement 25, is provided so that the cross-sectional area is expanded compared to the other sections. As a result, there is an advantage in that the durability of the lower section of the neck portion 22 where the first and second blade portions 23 (23') and the upper and lower blade portions (24) (24') are formed is improved.

In addition, the dog body 30 according to the present invention has a center hole 31 formed to fit into the outer peripheral surface of the tool holder 3, and a multi-hole 32 is formed at a position spaced apart from the center hole 31. .

At this time, bolts are screwed onto the dog body 30 corresponding to the center hole 31 and the multi-hole 32, and the tool holder 3 inserted into the center hole 31 and the multi-hole 32 and It is provided to restrain the dog pin 40, which will be described later, and has the advantage of being able to simply apply the dog body 30 by combining the center hole 31 with the tool holder 3 currently in use.

In addition, the dog pin 40 according to the present invention is inserted and fixed into the multi-hole 32 of the dog body 30 and is provided parallel to the rotation axis of the tool holder 3.

The dog pin 40 is preferably made of a carbide material with excellent wear resistance, and is inserted into the multi-hole 32 to adjust its length in the vertical direction and to be coupled to the dog groove 51 of the dog holder 50, which will be described later. do.

In addition, the dog holder 50 according to the present invention is installed on the bottom of the headstock 4 of the machining center to rotatably support the spindle 2, and is combined with the dog pin 40 to support the tool holder 3. A dog groove 51 is formed to restrain it.

A fastening hole is formed in the dog holder 50, and the dog holder 50 is equipped to be mounted on the bottom of the headstock 4 by fastening a bolt through the fastening hole.

And, when the tool holder (3) is mounted on the spindle (2) of the machining center, the dog pin (40) engages with the dog groove (51) of the dog holder (50) and the tool holder (3) and the spindle (2) It is provided to be restrained to the headstock (4).

In this way, the structure of the tool holder 3 mounted on the spindle 2 of the machining center has been improved so that it is restrained in the rotational direction by the dog pin 40 and the dog holder 50, so that the machining center and the existing tool holder ( 3) can be used to perform the slotting process, and in particular, the left-right movement of the broach tool (20) is prevented while processing the keyway by the up-and-down reciprocating movement of the broach tool (20), thereby improving slotting precision. There are benefits to this.

In FIG. 7, a sensor 52 is installed on the dog holder 50 corresponding to the dog groove 51.

The sensor 52 is provided to detect the dog pin 40 inserted into the dog groove 51.

In addition, the dog pin 40 is provided with an elastic body so that the stretching transport force is applied while the stretching length is adjusted.

Accordingly, when the tool holder 3 is mounted on the spindle 2, if the dog groove 51 and the dog pin 40 do not match, the dog pin 40 is reduced and the dog pin 40 is reduced. If the dog pin 40 is not detected by the sensor 52, it is determined that the tool holder 3 is incorrectly installed, and an emergency stop and notification signal is output, so the tool holder 3 is quickly and accurately detected. It has the advantage of preventing equipment damage and processing defects due to malfunction.

In FIG. 8, the dog pin 40 is provided to be located in the center of the dog groove 51 by the docking correction module 60.

The docking correction module 60 is formed at the center of the dog pin 40 and is inserted into the vertical rod hole 61 provided to open upward, and is transported upward by the elastic body. A force acts on the push rod 62, on which a pair of inclined cams 62a are formed on the outer peripheral surface, and a pair of push rods 62 that are perpendicular to the vertical rod hole 61 and penetrate laterally on the dog pin 40. It is inserted into the horizontal rod hole 63 and the elastic body acts as an extensional transport force, and the extension movement distance is limited by the pin 64a and the long hole 64b, and at one end is a cam surface ( 64c) is formed and engages in cam movement with the inclined cam 62a, and a push piece 64d is formed at the other end to be pressed against the inner peripheral surface of the dog groove 51.

When the tool holder 3 is mounted on the spindle 2, when the dog pin 40 enters the inside of the dog groove 51, the push rod 62 is on the inner peripheral surface of the dog groove 51, as shown in the enlarged view of FIG. 8. As it is contracted and transferred in a pressurized state, a pair of push pieces 64 are simultaneously extended and transferred due to cam movement between the inclined cam 62a and the cam surface 64c, and are pressed against the inner peripheral surface of the dog groove 51, thereby forming the dog pin 40. As the angle of the tool holder 3 is corrected so that it is located in the center of the dog groove 51, the precision of mounting the tool holder 3 is improved.

9 to 10, the dog pin 40 is formed in a reduced size compared to the dog groove 51 to form a gap, and the gap is provided to be closed by the gap compensation module 70.

The gap compensation module 70 is installed on the dog body 30, includes a horizontal guide pin 71 provided to be perpendicular to the dog pin 40, a plurality of arranged on both sides of the dog pin 40, and a horizontal guide A gap disk 72 in which a guide hole 72a is formed to move up and down on the pin 71, a first floating magnet 73 formed at the lower end of the gap disk 72, and a first floating magnet 73 formed at the upper end of the gap disk 72. The second floating magnet 74 is installed on the dog body 30 to correspond to the first floating magnet 73, and a repulsive force acts on the first floating magnet 73 to move the gap disk 72 upward. An attractive force acts between the first fixed magnet (75) supported by the and the second floating magnet (74), which is installed inside the dog groove (51) and provided on the gap disk (72) inserted into the dog groove (51). It includes a second fixed magnet (76).

And when the tool holder 3 is mounted on the spindle 2, the dog pin 40 corresponding to the dog groove 51 area in FIG. 10 and at least one gap disk 72 are inserted into the dog groove 51. As it is inserted so that the gap is removed, versatility that can be applied to the dog groove 51 of various specifications is provided.

As described above, the most preferred embodiments of the present invention have been described in the detailed description of the present invention, but various modifications may be made without departing from the technical scope of the present invention. Therefore, the scope of protection of the present invention should not be limited to the above embodiments, but should be recognized to the technologies in the patent claims described later and to equivalent technical means from these technologies.

10: Jig part 20: Broach tool
30: Dog body 40: Dog pin
50: Dog holder 60: Docking correction module
70: Gap compensation module

Claims (8)

A jig part (10) installed on the machining center table (1) and clamping the outer diameter of the workpiece (W), which is a cover part of a guided weapon drive device, so that the inner diameter hole (W1) faces the longitudinal direction; A broach tool (20) provided to be mounted on a tool holder (3) fastened to the spindle (2) of a machining center; A dog body (30) in which a center hole (31) is formed to fit into the outer peripheral surface of the tool holder (3), and a multi-hole (32) is formed at a position spaced apart from the center hole (31); A dog pin (40) inserted and fixed into the multi-hole (32) of the dog body (30) and provided parallel to the rotation axis of the tool holder (3); and a dog installed on the bottom of the headstock (4) of the machining center that rotatably supports the spindle (2), and in which a dog groove (51) is formed to couple with the dog pin (40) to restrain the tool holder (3). Includes a holder 50;
When the tool holder (3) is mounted on the spindle (2) of the machining center, the dog pin (40) engages with the dog groove (51) of the dog holder (50) so that the spindle (2) along with the tool holder (3) are aligned with the main axis. It is provided to be restrained on the stand (4),
A sensor 52 is installed on the dog holder 50 corresponding to the dog groove 51, and the sensor 52 is provided to detect the dog pin 40 inserted into the dog groove 51. The dog pin 40 is provided so that the stretching feed force is applied by an elastic body while the stretching length is adjusted. When the tool holder 3 is mounted on the spindle 2, the dog groove 51 and the dog pin 40 are formed. In case of mismatch, the dog pin (40) is reduced and transferred, and if the dog pin (40) is not detected by the sensor (52) due to the reduced transfer of the dog pin (40), it is determined that the tool holder (3) is not installed properly, and an emergency A broach tool module for processing a guided weapon drive device cover using a machining center, which is equipped to output a stop and notification signal.
According to clause 1,
The jig part 10 is,
A base plate (11) mounted on the table (1) and having a pair of guide rails (11a) formed in parallel on the upper surface,
A screw housing (12) installed between the guide rails (11a),
The screw 13 is constrained to the screw housing 12 and freely rotates, has right and left thread parts 13a and 13b formed on both sides based on the screw housing 12, and has axes 13c at both ends. ,
A pair of slide blocks (14) that are linearly transported along the guide rail (11a), are screwed to the right and left thread parts (13a) and (13b) respectively, and are linked to the rotational movement of the screw (13) and are transported in opposite directions to each other. ,
It is installed on each slide block 14 and includes a clamp arm 15 on which a jaw 15a is installed to clamp the outer peripheral surface of the workpiece W,
When the workpiece (W) is loaded between the jaws (15a) and a tool is fastened to each axis (13c) of the screw (13) and rotated, a pair of slide blocks (14) are formed by the rotational movement of the screw (13). A broach tool module for processing a guided weapon drive device cover using a machining center, characterized in that the workpiece (W) is clamped by a pair of jaws (15a) while being transferred in the opposite direction to each other.
According to clause 1,
The broach tool (20) is,
A handle (21) mounted on the tool holder (3),
A neck portion (22) extending downward from the handle portion (21) and having a reduced diameter compared to the handle portion (21),
It includes first and second blade parts 23 (23') installed at equal intervals of 180˚ on the lower outer peripheral surface of the neck part 22,
The broach tool (20) reciprocates up and down together with the headstock (4), and the jig part (10) is transferred in one direction by the table (1) so that the first blade part (23) has the inner diameter of the workpiece (W). Process the primary keyway (K1) by cutting the hole (W1),
After the primary keyway (K1) is completed, the jig part (10) is transferred to the other side by the table (1) and the second blade part (23') cuts the inner diameter hole (W1) of the workpiece (W) to form a secondary A broach tool module for processing a guided weapon drive device cover using a machining center, which is equipped to process a key groove (K2).
According to clause 1,
The broach tool (20) is,
A handle (21) mounted on the tool holder (3),
A neck portion (22) extending downward from the handle portion (21) and having a reduced diameter compared to the handle portion (21),
A downward blade portion (24) is formed on the lower outer peripheral surface of the neck portion (22),
It includes an upward blade portion 24' formed on the lower outer peripheral surface of the neck portion 22 to correspond to the downward blade portion 24 and a 180° equiangular position,
The broach tool (20) reciprocates up and down together with the headstock (4),
When the headstock 4 is moved downward, the jig part 10 is moved in one direction by the table 1, and the downward blade part 24 is moved downward, cutting the inner diameter hole W1 of the workpiece W. Process the first keyway (K1),
When the headstock 4 is moved upward, the jig part 10 is transferred to the other side by the table 1, and the upward blade part 24' is moved upward, cutting the inner diameter hole W1 of the workpiece W. A broach tool module for processing a guided weapon drive device cover using a machining center, characterized in that it is provided to process a secondary keyway (K2).
According to claim 3 or 4,
A reinforcing bar 25 is formed on the lower outer peripheral surface of the neck 22, and the reinforcing bar 25 is 90° equiangular with the first and second blades 23 and 23' and the upper and lower blades 24 and 24'. formed in a location,
The lower section of the neck 22, where the first and second blades 23 and 23' and the upper and lower blades 24 and 24' are formed by the reinforcement 25, is provided so that the cross-sectional area is expanded compared to the other sections. A broach tool module for processing a guided weapon drive device cover using a machining center.
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