KR100463788B1 - Screw manufacturing machine - Google Patents

Abstract

The present invention relates to a screw processing apparatus, and more particularly, by configuring the apparatus so that the step of forming a chamfer on the workpiece and the step of forming the screw can be performed at the same time to improve the efficiency and productivity of the operation with ease and speed of operation. The present invention relates to a screw processing apparatus, which is capable of securing the economy due to an increase in price competitiveness, which is connected to the drive motor 25 on one side base 21 of the bed 1. 22 is provided to be capable of moving forward and backward, and the bite holder 4 having the screw bite 42 and the chamfering bite 43 in the front side of the speed reducer 22 is driven by the driving force transmitted from the speed reducer 22. A headstock 2 configured to rotate; A holder (3) having a chuck (30) for biting and fixing the workpiece (100) on the other side bed (1) of the headstock (2); A stopper having a blocking plate 53 which is moved forward and backward by an operation cylinder 52 installed in a direction perpendicular to the workpiece 100 on the bed 1 between the headstock 2 and the holder 3. (5); By the sensor sensor unit 6 for limiting the forward and backward movement range of the reducer 22 can improve the efficiency and productivity of the operation with ease and speed of operation, and also due to the increase in price competitiveness It will also have the effect of securing.

Description

Screw manufacturing machine

The present invention relates to a screw processing apparatus, and more particularly, by configuring the apparatus so that the step of forming a chamfer on the workpiece and the step of forming the screw can be performed at the same time to improve the efficiency and productivity of the operation with ease and speed of operation. The present invention relates to a thread processing device that enables the construction of a high speed, and thereby secures the economics of increasing price competitiveness.

In general, when machining a screw that is subjected to a large force, the screw is machined to the workpiece, and the end of the screw portion is chamfered to prevent breakage of the screw portion with respect to the force. The processing is performed in the order shown in Fig. 4) to 4 (d).

Figure 4 (a) is a front view showing the workpiece before processing, the workpiece 100 is formed of a rod having a rather large diameter, the end portion is a machining portion for setting the processing range as shown in Figure 4 (b) 100A is formed.

In this state, as shown in FIG. 4 (c), first, the chamfering step of forming the chamfer 100B in the edge portion of the end portion of the processing part 100A is performed, and the workpiece 100 is processed by this step. After forming the chamfered portion (100B) in the processing portion (100A) of the processing is to perform a screwing step of shaping the processing portion (100A) of the workpiece 100 again to form a screw portion (100C).

Therefore, in the related art, as described above, the step of forming the chamfer and the step of forming the screw part are separately performed and performed, which not only induces trouble and inconvenience, but also takes a lot of work time, thereby making the work inefficient. And it causes a decrease in productivity, and also because of this, there is a problem in the economic loss in the industry where the competitiveness is determined in the productivity per hour.

Therefore, the present invention was devised to solve the conventional problems as described above, the object of which is to simplify the operation by configuring the device so that the step of forming a chamfer and the step of forming a screw on the workpiece can be made at the same time In order to improve the efficiency and productivity of the work with speed, it is also possible to secure economic feasibility by increasing the price competitiveness.

In order to achieve the object of the present invention, a reducer connected to a driving motor is provided on the one side base of the bed so as to be forward and backward, and a byte holder having a screw bite and a chamfering bite to the front side of the speed reducer is transferred from the reducer A headstock configured to rotate by a driving force to be provided; A holder having a chuck for fixing the workpiece on the other bed of the spindle; A stopper having a blocking plate which is moved forward and backward by an operation cylinder installed in a direction perpendicular to a workpiece on a bed between the headstock and the holder; Provided is a screw processing apparatus comprising a sensing sensor unit for limiting the forward and backward movement range of the reducer.

In addition, the bite holder has a holder body having an inner space by connecting between the front portion and the rear portion of the disk-shaped workpiece having a workpiece insertion hole formed in the central portion, the side space portion is formed between the support, the front portion and It is characterized in that the screw bite and the chamfering bite are mounted on the rear side thereof.

In addition, the sensing sensor unit is equipped with a pair of limit switches, respectively, on one side of the front and rear side of the base, and on the slide bar formed in the upper gear reducer is a blow hole for hitting the limit switch while moving forward and backward with the reducer It is characterized in that it is mounted.

1 is a front view showing the overall configuration of the present invention.

Figure 2 is a perspective view showing a byte holder structure of the present invention.

3a to 3d show the operation of the present invention,

Figure 3a is a plan view showing a process of setting the workpiece.

Figure 3b is a plan view showing the reverse state of the blocking plate.

3C is a plan view showing the advanced state of the bite holder.

3d is a plan view showing a completed state.

Figure 4 (a) to Figure 4 (d) shows a conventional workpiece threading process,

4 (a) is a front view of the workpiece.

Figure 4 (b) is a front view of the workpiece showing a state in which a processing unit is formed.

Figure 4 (c) is a front view of the workpiece showing a state where the chamfered portion is formed.

Figure 4 (d) is a front view of the workpiece showing the state in which the thread portion is formed.

* Explanation of symbols for the main parts of the drawings

1: Bed

2: headstock

21: bass

22: reducer

220: protrusion rod

23: driving cylinder

231: connecting rod 232: cylinder rod

24: guide rail 25: driving motor

25A: rotating shaft 26: circular pulley

27: driven pulley 28: belt

3: fixed stand

30: Chuck

4: byte holder

41: holder body

411: front part 412: rear part

413: Workpiece insertion hole 414: Internal space

415: side space portion 416: support

42: Unused byte 43: Chamfering byte

5: stopper

51: stand 52: operating cylinder

52A: cylinder rod 53: blocking plate

6: detection sensor

61: limit switch 62: slide rod

63: hit ball

7: Operation group

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view showing the overall configuration of the present invention.

As shown in the present invention, the main shaft (2) is installed on one side of the upper side of the bed (1), the other side of the fixing bar (3) is installed, the middle portion of the stopper (5) is installed, The headstock 2 is configured to be moved forward and backward on the lower side base 21.

In addition, the main shaft 2 includes a drive motor 25, the lower side of the drive motor 25 is provided with a reducer 22 for reducing the rotational speed of the drive motor 25, the reducer ( 22 is configured to rotate the front bite holder 4 by receiving the driving force of the drive motor 25, the bite holder 4 is a drive shaft (not shown) output from the reducer 22 Belt 28 for connecting the driven pulley 27 provided on the shaft of the other side reducer 22 of the drive shaft and the driven pulley 26 provided on the rotating shaft 25A of the drive motor 25. The reducer 22 is configured to transmit the driving force of the drive motor 25 to the bite holder 4 side.

The forward and backward of the headstock (2) is made by the operation of the drive cylinder 23 built in the base 21, for this purpose, in parallel with the cylinder rod 232 of the drive cylinder (23) Protruding rod 220 is integrally formed to the front side of the 22, the cylinder rod 232 of the protruding rod 220 and the driving cylinder 23 is connected by the connecting rod 231 to be interlocked with each other. Consists of.

And it is provided with a detection sensor unit 6 to set the front and rear movement range of the main shaft 2, the detection sensor unit 6 is one of the base 21, the guide rail 24 is formed on the upper surface A pair of limit switches 61 are mounted on the front and rear sides of the side, and an upper or lower speed reducer 22 has a striking hole 63 corresponding to the limit switch 61 in the horizontal slide bar 62. It is mounted to the limit switch 61 of the striking opening (63) in accordance with the movement of the reducer 22 is configured to control the operation of the drive cylinder 23 built in the base (21).

Meanwhile, the bite holder 4 constitutes the holder body 41 in a substantially hollow circumferential shape as shown in FIG. 2, and in more detail, the holder body 41 has an inner space part 414. Structure connected with a plurality of supports 416 between the front portion 411 of the disk-shaped front portion 411 and the rear portion 412 connected to the output shaft of the reducer 22 formed with the workpiece insertion hole 413 in the front and rear sides of When the side space portion 415 is formed between the support 416 is formed so that the chip can be discharged through the side space portion 415.

In addition, at least one screw bite 42 for forming a screw in the workpiece 100 is mounted on the front portion 411 of the holder body 41, but considering the processing speed and efficiency in terms of four bite mounting More preferably, on the rear side space portion 415 of the holder body 41, the chamfering bite 43 for chamfering the front end of the workpiece 100 is mounted together, and they rotate together with the holder body 41. While performing the screw and chamfering for the workpiece 100 at the same time.

Fixing plate (3) installed on the other side bed (1) of the headstock (2) is a means for fixing the rod-shaped workpiece 100 does not flow, the chuck 30 is provided at the front end, the chuck ( 30 is to fix the workpiece 100 to be inserted into the fixture 3, the operation thereof is by a conventional device embedded in the holder (3).

The stopper 5 is provided between the headstock 2 and the holder 3 to determine the insertion range and position of the workpiece 100 through the holder 3, and the stopper 5 includes a bed ( The operating cylinder 52 at a predetermined height on 1) is provided in a state in which the lower portion is supported by the stand 51 in a direction perpendicular to the workpiece 100, and the cylinder rod 52A of the operating cylinder 52 is provided. At the end side, the blocking plate 53, which is also perpendicular to the workpiece 100, is integrally formed so as to be interlocked with the cylinder rod 52A. Here, reference numeral 7 denotes an operation panel.

Next, the operation relationship of the present invention configured as described above will be described in detail with reference to FIGS. 3A to 3D.

As shown in FIG. 3A, the workpiece 100 is inserted into the holder 3 to the blocking plate 53 of the stopper 5, and when the workpiece 100 contacts the blocking plate 53, the holder 3 Chuck 30 is to be fixed to the workpiece 100, at the same time the cylinder rod 52A and the blocking plate 53 is reversed by the operation of the operating cylinder 52 as shown in Figure 3b .

Thereafter, the driving cylinder 23 embedded in the base 21 and the driving motor 25 of the headstock 2 are operated at the same time, and the headstock 2 is driven as shown in FIG. 3C. By the operation of the (23) is to move along with the bite holder (4) along the guide rail 24 of the base 21, the bite holder (4) is driven pulley (26) and driven pulley (27), It is rotated by the driving force of the drive motor 25 including the belt 28.

Thus, the screw thread 42 of the front part of the bite holder 4 forms the thread along the workpiece 100 by the rotation of the bite holder 4 together with the advance of the headstock 2. When the bite 42 reaches the end point of the threaded portion, the rear side chamfering bite 43, which rotates together with the threaded bite 42, cuts off the tip of the workpiece 100 together with the threaded portion 100C. The chamfering part 100B will be processed simultaneously.

At this time, the movement range of the headstock 2 is a limit switch 61 mounted on the front and rear sides of the base 21 is a blow hole 63 mounted on the front and rear sides of the slide rod 62 of the reducer 22. It is determined by hitting the contact protrusion of the), the movement range can be adjusted by moving the hitting hole 63 on the slide rod (62).

After completion of the series of threaded and chamfered processing as described above, the headstock 2 including the bite holder 4 is returned to its original position as shown in FIG. 3D, and the workpiece 100 is held. The chuck 30, which had been released, releases the fixing force to the workpiece 100 so that the worker removes the workpiece 100 from the holder 3 and collects it, and then again the other workpiece 100 again as described above. It will be repeated to work by inserting the fixing plate 3 to the blocking plate 53.

As described above, by configuring the apparatus so that the step of forming the chamfer and the step of forming the screw in the invention of the present invention can be performed at the same time, it is possible to improve the efficiency and productivity of the work with ease and speed of work, and also due to this It will also have the effect of securing economic feasibility as price competitiveness rises.

Claims (3)

The reducer 22 connected to the drive motor 25 is provided on the one side base 21 of the bed 1 so as to be able to move forward and backward, and for the screw bite 42 and the chamfering to the front side of the reducer 22. A headstock 2 configured to rotate the bite holder 4 having the bite 43 by a driving force transmitted from the reducer 22; A holder (3) having a chuck (30) for biting and fixing the workpiece (100) on the other side bed (1) of the headstock (2); A stopper having a blocking plate 53 which is moved forward and backward by an operation cylinder 52 installed in a direction perpendicular to the workpiece 100 on the bed 1 between the headstock 2 and the holder 3. (5); Screw processing device, characterized in that consisting of a sensing sensor unit for limiting the forward and backward movement range of the reducer (22). The method of claim 1, The bite holder 4 has a holder having an inner space part 414 by connecting a plurality of supports 416 between the front part 411 and the rear part 412 of a disk shape in which a workpiece insertion hole 413 is formed at the center thereof. Comprising a body 41, the side space portion 415 is formed between the support 416, the screw bite 42 and the chamfering bite 43 on the front portion 411 and its rear side, respectively Screw processing apparatus characterized in that mounted. The method of claim 1, The sensor 6 is equipped with a pair of limit switches 61 on one side of the front and rear sides of the base 21, and on the slide bar 62 formed on the upper gear reducer 22 thereof. Screw processing apparatus, characterized in that the blow hole (63) for hitting the limit switch 61 while moving forward and backward with (22).