KR0129408Y1 - Coupling device for tail stock of cnc lathe - Google Patents

Abstract

The present invention relates to a passive tailstock moving connection device of a CNC shelf, which interconnects them to move the CNC lathe manual tailstock to the drive source of the shade, and more specifically, to improve the structure It also connects the tailstock and the shade to the force, and at the same time detects their connection accurately.

To this end, a set screw (13) coupled to the base (1) to be fitted to the key groove formed in the inclined key groove 12 on the outer circumferential surface, and is coupled to the base (1) to change the rotational movement of the connecting rod into a linear movement ) And sensing means installed inward of the hole 10a formed in the plate 10 to detect the progress of the connecting rod.

Description

Manual tailstock moving connector of OneCNC Lathe

1 is a longitudinal sectional view showing a conventional device.

Figure 2 is a longitudinal cross-sectional view showing the device of the present invention.

3 is a cross-sectional view along the line AA ′ of FIG. 2.

4 is a side view showing the rotation of the lever.

5 is a developed view showing the key groove portion.

* Explanation of symbols for main parts of the drawings

1 Base 11 Connecting Rod

11a: Handle 12: Keyway

12a: Horizontal groove 13: Set screw

15: plunger 17: limit switch

18: Retainer

The present invention relates to a passive tailstock moving connection device of a CNC lathe that interconnects the passive tailstock of the CCC lathe to the drive source of the shade, more specifically, the structure The improvement allows the tailstock to be connected with the shade with a small amount of force and at the same time detects their connection accurately.

In general, since a lot of force is required to manually move the tailstock of the CNC lathe, the position of the tailstock is changed semi-automatically by using the driving source of the shade mounted on the Z-axis.

1 is a longitudinal cross-sectional view of a conventional apparatus, in which a body 2 is joined by a pin 3 to a base 1 constituting a tail stock, and the base coupled to the body is along a rail 4. It will move horizontally.

The connecting rod 5 having the small diameter portion 5a formed on the base 1 is removably coupled to the base 1, and the base 1 is provided with an o-ring 6 so that the connecting rod 5 slides downward by its own weight. In the groove 5c formed on the outer circumferential surface of the connecting rod 5, the set screw 7 coupled to the base 1 by screwing is inserted, thereby limiting the retraction distance of the connecting rod.

And a knurling for non-slip is formed on the handle (5d) of the connecting rod and the limit switch (8) for detecting the retraction of the connecting rod is fixed inside the tailstock base (1), the limit in the initial state The tip of the switch is positioned at the small diameter portion 5a of the connecting rod, and the plate 10 having a hole 10a into which the tip of the connecting rod 5 is fitted is fixed to the saddle 9.

Accordingly, when the connecting rod 5 that is pulled out of the base 1 is pushed to move the tail stock, the tip of the connecting rod 5 is inserted into the hole 10a formed in the plate 10.

At this time, since the set screw 7 is fitted into the groove 5c of the connecting rod 5, the amount of movement of the connecting rod is limited.

During the above operation, the tip of the limit switch 8 located at the small diameter portion 5a of the connecting rod 5 is connected to the large diameter portion 5b on the inclined surface to detect the advancement of the connecting rod 5. Notifies the control unit (not shown) that the shade 9 is connected.

As such, when the control unit determines that the tailstock shades 9 are interconnected by the connecting rods 5, the base 1 moves horizontally along the rails 4 because the shades are gradually moved by changing the tailstock moving environment in the program. Done.

As described above, when the tailstock is moved to reach the desired position, grasp the handle 5d of the connecting rod 5 and pull the tip of the connecting rod 5 out of the hole 10a formed in the plate 10. As the movement is stopped and the limit switch 8 connected to the large diameter portion 5b is turned on and off in the small diameter portion 5b, it is reduced to the movement environment of the shade 9 in the program. do.

However, this conventional apparatus has the following problems.

First, the connecting rod (5) coupled to the base (1) is retracted so that it does not come out downward by the friction force with the O-ring (6) is required a lot of force to advance the connecting rod (5).

Second, since the limit switch 8 which detects the progression of the connecting rod 5 is installed inside the base 1, in order to repair or replace the limit switch, the whole base has to be lifted, so maintenance and repair work is performed. Cumbersome.

Third, if the replacement rod 5 or the set screw 7 is to be replaced, the tail stock body 2 coupled to the base 1 must be lifted to maintain the precision, so that the body can be reassembled precisely. It takes time.

Fourth, if only the limit switch 8 is operated in a state where the tip of the connecting rod 5 is not inserted into the hole 10 formed in the plate 10, there is a fear of malfunction because the program is changed to a tailstock moving environment.

Fifth, when the set screw (7) is broken in the state that does not recognize this pulls the connecting rod (5), the connecting rod is completely separated from the base (1).

The present invention has been devised to solve such problems in the related art, and its structure is improved so that the parts can be replaced without separating the base from the body when the parts are damaged, and at the same time, the connecting rod is rotated to move forward. In addition, the purpose is to be able to change the tailstock mobile environment.

According to an aspect of the present invention for achieving the above object, the inner side of the hole formed in the plate to be coupled to the base to be fitted into the key groove formed in the inclined key groove on the outer circumferential surface, to be fitted into the key groove formed in the connecting rod Provided is a passive tailstock moving connection device of the CNC shelf (CNC) consisting of a sensing means installed in.

Hereinafter, the present invention will be described in more detail with reference to FIGS. 2 to 5 of the accompanying drawings.

FIG. 2 is a longitudinal sectional view showing the device of the present invention, FIG. 3 is a sectional view taken along the line AA of FIG. 2, and FIG. 4 is a side view showing the rotational state of the lever, and the present invention is shown on the outer circumferential surface of the connecting rod 11 in FIG. A key groove 12 is formed as shown, and the set screw 13 is screwed into the base 1 so as to fit in the key groove 12 formed in the connecting rod. By rotating), the rotational motion of the connecting rod is changed to linear motion.

At the end of the connecting rod connecting point of the key groove 12 formed on the outer circumferential surface of the connecting rod 11, the horizontal groove 12a is formed to extend, which rotates the connecting rod 11 to feed the tail stock, and then This is to prevent the connecting rod from being reduced to the initial state by the vibration when the external force is removed from the handle 11a.

And the sensing means for detecting the linear movement of the connecting rod 11 is changed to the tailstock moving environment on the program is installed inside the hole (10a) formed in the plate (10).

In one embodiment of the present invention as the sensing means the bracket 14 is fixed to the inside of the hole (10a) formed in the plate 10 and the inclined surface to move forward and backward together in accordance with the movement of the connecting rod (11) ( The plunger 15 having the 15a) and the large diameter portion 15b is elastically installed by the elastic member 16 such as a spring, and the plate positioned to one side of the plunger detects the movement of the plunger to program the shade 9. A limit switch 17 is fixed to the head to change the tailstock moving environment.

At this time, the plunger 15 elastically installed by the elastic member 16 is made to match the outer surface of the plate 10 in a state where no external force is applied to close the hole 10a.

This is to prevent the scrap of the microparticles generated during the cutting operation flowing into the sensing means through the hole (10a).

The retainer 18 is fixed to the bolt 19 on the side surface of the base 1 to support one end of the connecting rod 11.

This is because the base is a casting material (a large brittle cast iron) is to prevent the damage to the surface of the base of the shade to take a large force at the end of the connecting rod 11 during the delivery of the tail stock.

Referring to the operation, effects of the present invention configured as described above are as follows.

First, as shown by the dashed-dotted line in FIG. 4, when the handle 11a of the connecting rod 11 faces the horizontal direction, the set screw 13 coupled to the base 1 is disposed on the outer circumferential surface of the connecting rod 11. Since it is located at the separation point 12b of the formed key groove 12, the connecting rod 11 is to maintain the state drawn out as much as possible from the base.

In this state, since the plunger 15 installed in the saddle 9 is coincided with the outer surface of the plate 10 by the restoring force of the elastic member 16, the hole 10a is closed, as well as the inclined surface 15a formed in the plunger 15. And the limit switch 17 is spaced apart from the large diameter portion 15b, the shades are normally operated.

If you want to change the tailstock position while cutting in the above state, loosen the clamper 20, which was fixed to the rail 4, then move along the Z axis to move the plate 10. The hole 10a formed in the line is positioned in line with the connecting rod 11.

Thereafter, when the handle 11a is rotated clockwise by the connecting rod 11, the set screw 13 is fitted into the key groove 12 formed on the outer circumferential surface of the connecting rod so that the connecting rod 11 is moved forward to the shade 9. do.

Thus, when the connecting rod 11 advances to the side of the shade 9 and the tip of the connecting rod begins to push the plunger 15, the limit switch 17 fixed to the plate 10 stands against the inclined surface 15a of the plunger 15. Since it is connected to the neck part 15b in turn, it is changed to the tail stock moving environment (conditioning such as limiting the feed rate and impossibility of rapid feeding) on the program.

Even if vibration occurs in the above operation, the connecting rod 11 that has been moved is not moved because the set screw 13 is located in the horizontal groove 12a, which is a smooth section formed at the end of the key groove 12.

After changing the tailstock to the desired position on the program as described above, and transferring the tailstock to the desired position, and then returning the handle (11a) to the initial state, the connecting rod (11) was advanced, so the plunger (15) is elastic. The restoring force of the member 16 moves in the same direction as the backward direction of the connecting rod to close the hole 10a formed in the plate 10.

Thus, when the plunger 10 moves and closes the hole 10a, the limit switch 17 which was turned on by the large diameter part 15b is turned off, and the tailstock moving environment is canceled.

After the tailstock is moved to the desired position by the operation as described above, by tightening the clamper 20 that has been released again to lock the tailstock to the rail 4, it is possible to perform a continuous cutting operation.

As described above, the present invention has various advantages as follows.

First, since the connecting rod is retracted by the operation of rotating the connecting rod 11 using the handle 11a, the tailstock can be moved even with a small force.

Second, since the limit switch 17 for detecting the progression of the connecting rod is installed in the plate 10, maintenance and repair work is facilitated because only the plate needs to be disassembled during maintenance and repair work due to breakage.

Third, the set screw 13 for limiting the stroke and limiting the stroke of the connecting rod 11 is installed to be exposed to the outside of the base 1, so that the body does not need to be separated from the precisely assembled base even in case of breakage. Work becomes easy.

Fourth, if the tip of the connecting rod 11 does not advance the plunger 15, the limit switch 17 is not operated, thereby preventing malfunctions due to the movement of the tail stock.

Fifth, the horizontal groove (12a) is a smooth section on the key groove 12 is formed there is no fear that the connecting rod 11 is reduced to the initial state by the vibration even if the vibration occurs during the movement of the tail stock.

Claims (5)

A connecting screw 11 having an inclined key groove 12 formed on an outer circumferential surface thereof, and a set screw 13 coupled to the base 1 so as to fit into a key groove formed on the connecting rod, thereby changing the rotational movement of the connecting rod into a linear movement; Connecting device for moving the passive tailstock of the CNC rack (CNC) consisting of a sensing means is installed to the inside of the hole (10a) formed in the plate 10 to detect the progress of the connecting rod. The plunger (15) according to claim 1, wherein the sensing means is elastically installed by the elastic member (16) to be rotatable into the hole (10a) formed in the plate (10) and has an inclined surface (15a) and a large diameter portion (15b). ), A bracket 14 fixed to the plate and guiding the horizontal movement of the plunger, and a limit switch 17 fixed to the plate so as to be located to one side of the plunger and detecting the movement of the plunger. Manual tailstock moving connector on a CNC lathe. The manual type of CNC lathe according to claim 2, wherein the plunger 15 is closed with the outer surface of the plate 10 in a state where no external force is applied to the plunger 15 to close the hole 10a. Tailstock connector. The apparatus of claim 1, wherein the retainer (18) is bolted (19) on the side surface of the base of the base (1). According to claim 1, Passive tailstock moving connecting device of the CNC shelf, characterized in that the horizontal groove (12a) is formed to extend at the end of the connecting rod connecting point of the key groove 12 formed in the connecting rod (11) .