KR102120338B1 - Manufacturing apparatus of enveloping worm - Google Patents

Abstract

The present invention relates to an apparatus for manufacturing a long-sleeve worm, and its purpose is to allow a long-sleeve worm to be quickly manufactured by cutting in a conventional lathe.
To this end, the present invention, the main shaft 42 for rotating the chuck (42a) for fixing the cylindrical material, the bed 41 provided on one side of the main shaft 42, and mounted on the bed 41 In the worm (Worm) manufacturing apparatus comprising a reciprocating table (43) to be transferred in the horizontal and vertical direction, and a tailstock (44) provided on the bed (41) to face the main shaft (41) , Further comprising a long-sized worm processing apparatus 50 provided on the bed 41, the long-sized worm processing apparatus 50 is in contact with the side surface of the cylindrical material, rotates at the same time, toward the cylindrical material It is characterized by forming a tooth shape of a long-sized worm by cutting a cylindrical material while transferring in the vertical direction.

Description

Manufacturing equipment for long-formed worms {MANUFACTURING APPARATUS OF ENVELOPING WORM}

The present invention relates to an apparatus for manufacturing a long-sized worm, and more specifically, by processing a long-sized worm by mounting a circular cutting tool that can rotate on a reciprocating machine of a lathe, thereby greatly shortening the long-term worm processing time. It relates to an apparatus for manufacturing a long-sleeved worm capable of improving productivity and lowering manufacturing costs.

Among the gears used to transmit power in various machinery is a Worm Gear.

The worm gear, as shown in Fig. 1, a worm 10 having a thread formed on a long cylindrical material (Worm, hereinafter referred to as a'cylindrical worm' to distinguish it from a'long-formed worm' to be described later) and , It is composed of a spur gear or helical gear-shaped worm wheel (Worm Wheel) 20 that rotates in engagement with the cylindrical worm.

The worm gear has a structure in which the worm shaft 10a and the worm wheel 20 shaft intersect at 90 degrees, so that the gear ratio can be adjusted freely and the reduction ratio is very large.

Accordingly, the worm gear is widely used in reduction devices of various machines.

In addition, the worm gear has the advantage of having less backlash, large load capacity, low noise and vibration, and reduced size and weight in the case of the same output.

Accordingly, the worm gear, various machine tools or robot reducers, position control devices, industrial construction heavy equipment direction change device, pump control device, valve, precision actuator, vehicle gear box, power window, power seat, sunroof It is widely used in control devices.

However, since the worm gear has a very small contact area, a lot of slippage, and heavy wear, it has disadvantages in terms of power transmission.

In addition, the worm gear has a disadvantage in that heat is severely generated during high-speed rotation, resulting in a shortened life.

The cylindrical worm 10 is manufactured by cutting or forming (rolling) to form a thread on the outer circumferential surface of the cylindrical material.

When manufacturing the cylindrical worm 10 by cutting, the thread is formed on the circumferential surface of the cylindrical material W by the cutting tool T while rotating the cylindrical material W on a machine tool such as a lathe.

In addition, in the case of manufacturing the cylindrical worm 10 by rolling, which is a kind of plastic working, as shown in FIG. 2, a cylindrical material W is positioned between a pair of cylindrical dies 10b formed with threads. Then, the cylindrical material (W) is pressed with the cylindrical die (10b) to manufacture a worm.

That is, while rotating the pair of cylindrical dies 10b on which threads are formed in the same direction, the cylindrical material W is pressed to form threads on the outer circumferential surface of the material.

According to the above-described rolling processing, unlike the cutting process, since chips are not generated, the utilization rate of the material is high, and since the material and the tool are locally contacted, it can be processed with a relatively small force.

In particular, the teeth formed in the rolling process have the advantage of improving the mechanical strength by processing hardening and forming the tissue densely by plastic deformation.

On the other hand, among the above-mentioned worm gears, there is a'long worm gear' manufactured in the shape of a long worm.

As described above, the'long-formed worm gear', as shown in FIG. 3, is a long-formed worm 30 (also referred to as an enveloping worm, or hourglass worm) formed in a long-shaped shape, and the long-formed worm 30 It consists of an interlocking worm wheel (20).

The elongated worm 30 has an advantage in that the contact area between teeth is improved compared to the cylindrical worm 10 described above, thereby improving power transmission efficiency and impact resistance.

When the cross section of the cylindrical worm gear shown in FIG. 1 and the long worm gear shown in FIG. 3 are compared, it can be seen that the contact area between teeth is increased in the long worm gear compared to the cylindrical worm gear.

That is, as shown in FIG. 3, the long gear worm gear has a structure in which all teeth of the long gear worm 30 come into contact with the worm wheel 20.

Accordingly, the long-sleeved worm gear has the advantages of improved power transmission efficiency, less noise and vibration, and less heat generation than the cylindrical worm gear.

However, the above-described long-formed worm gear is difficult to design and manufacture, and at present, only some companies manufacture long-formed worm gear by cutting.

In addition, cylindrical worms can be processed on ordinary lathes, but long worms are very difficult to process.

Therefore, there is a problem in that an expensive 5-axis machine must be provided in order to manufacture a long-sized worm by cutting.

Cutting of the long-sized worm by a 5-axis machine, as shown in Fig. 4, after processing the cylindrical material into a long shape so that the central section is concave, then using a single cutting tool (T) to position it As it moves, it forms a tooth shape.

Accordingly, it has been pointed out that the productivity is reduced and the price is high due to the long time required for the processing of the long-formed worm.

KR 10-1482251 B1 KR 10-0581608 B1

The present invention is to solve the problems of the prior art as described above, the purpose of using a rotary cutting tool to be able to manufacture a long-sleeve worm by cutting in a conventional lathe.

Another object of the present invention is to greatly improve the productivity by significantly shortening the processing time of the long worm.

Another object of the present invention is to reduce the manufacturing cost by allowing a long-sized worm to be easily cut by a relatively simple device.

Another object of the present invention is to avoid the need for an expensive 5-axis machine to cut long worms.

In order to achieve the above object, the present invention, the main shaft for rotating the chuck for fixing the cylindrical material, a bed provided on one side of the main shaft, and mounted on the bed to transport in the horizontal and vertical direction and , In the worm manufacturing apparatus comprising a tailstock provided on the bed to face the headstock, further comprising a long worm processing apparatus provided on the bed, the long worm processing apparatus is cylindrical It is characterized in that it rotates in contact with the side surface of the material and simultaneously cuts the cylindrical material while vertically conveying it toward the cylindrical material to form a tooth shape of a long-formed worm.

In addition, the long-form worm processing apparatus, a circular rotating body provided with a plurality of cutting bite on the circumference, a first rotating shaft for rotating the rotating body, and a second provided to face the rotating body in the longitudinal direction It characterized in that it comprises a rotating shaft, a driving motor for driving the second rotating shaft, and a timing belt connecting the first rotating shaft and the second rotating shaft.

In addition, it is characterized in that the fixed disc and the fixing nut is provided on the upper portion of the rotating body.

In addition, the second rotary shaft of the long-formed worm processing apparatus is characterized in that it rotates simultaneously with the main shaft by a rotation synchronization device according to the worm gear reduction ratio.

In addition, the long-form worm processing apparatus is characterized in that it is reciprocated in the vertical direction toward the cylindrical material by a linear servo motor.

In addition, the long-sized worm processing apparatus is characterized in that it is provided detachably on the lower horizontal transfer table provided on the bed.

In addition, the long-form worm processing apparatus, a rotating body provided with a plurality of cutting bits on a circumference, a first rotating shaft for rotating the rotating body, a driven gear provided at an end of the first rotating shaft, and the driven And a driving gear engaged with the gear, and a driving motor for driving the second rotational shaft of the driving gear.

In addition, the first rotational shaft of the long-formed worm processing apparatus is characterized in that it rotates simultaneously with the main shaft by a rotational synchronization device according to the reduction ratio of the worm gear.

On the other hand, the cutting tool for processing the long-sized worm is assembled with a plurality of cutting bites on the circumference of the circular rotating body, and the circular rotating body rotates according to the reduction ratio of the worm gear with the long-sized material fixed to the chuck, It is characterized in that a plurality of cutting bites simultaneously cut the outer circumferential surface of the long material.

In addition, it is characterized in that a plurality of cutting bites are assembled with bolts on the outer circumference of the rotating body.

In addition, it is characterized in that a plurality of cutting bites are assembled with a bolt on a bite fixing member formed in a partial arc, and the bite fixing member on a partial arc is assembled with a bolt on an outer circumference of the rotating body.

On the other hand, a method of manufacturing a long-sleeved worm by cutting by using a bite comprises: (a) forming a cross-section of a cylindrical material to be concave so that the cross-section is reduced from both ends toward a central portion, and processing to become a long-sized material ( S10), (b) rotating the long-sized material fixed to the chuck of the headstock and the circular cutting tool provided in the reciprocating gear according to the reduction ratio of the worm gear, and (c) the long-sized cutting tool using the circular cutting tool. It characterized in that it comprises a step (S30) for transferring in the longitudinal direction toward.

In addition, in the step (S30) of transferring the circular cutting tool in the longitudinal direction toward the long-form material, it is characterized in that the vertical transfer table equipped with the cutting tool is reciprocated in the vertical direction using a linear servomotor.

According to the present invention, there is an effect capable of quickly and efficiently cutting a long-sized worm on a conventional lathe.

In addition, by attaching a worm processing device to the existing reciprocating lathe, there is an effect capable of cutting a long-sized worm.

In addition, it has the effect of improving the productivity and lowering the manufacturing cost by shortening the processing time of the long-formed worm.

In addition, it has the effect of not requiring an expensive 5-axis machine to cut and process long-sized worms.

1 is a block diagram showing a conventional cylindrical worm gear.
Figure 2 is a view for explaining a method of manufacturing a cylindrical worm gear by rolling in accordance with the conventional method.
3 is a block diagram showing a typical long-sleeved worm gear.
4 is a view for explaining a method of manufacturing a long-sleeved worm gear by a 5-axis machine according to the conventional method.
5 is a view for explaining the structure of a general shelf.
Figure 6 is a perspective view schematically showing a long-length worm manufacturing apparatus according to the first embodiment of the present invention.
7 is a sectional side view of a main portion of an apparatus for manufacturing a long-sleeved worm according to a first embodiment of the present invention;
8 is a view showing a long tool worm cutting tool according to the first embodiment of the present invention.
9 is a view showing a long-form worm cutting tool according to a second embodiment of the present invention.
10 is a schematic main part perspective view of an apparatus for manufacturing a long-sized worm according to a third embodiment of the present invention.
11 is a view showing a process for manufacturing a long-spheric worm according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 5 to 10.

<First Example>

5 to 8 show a first embodiment of the present invention.

First, the structure of a general shelf will be described with reference to FIG. 5.

The general shelf, as shown in Figure 5, the main shaft 42 for rotating the chuck 42a for fixing the cylindrical material, and the bed 41 provided on one side of the main shaft 42, the Mounted on the bed 41, the carriage 43 is transported in the horizontal and vertical directions, and provided on the top of the carriage 43, a tool rack 43d for fixing a cutting tool, and the main shaft 41 It comprises a tailstock 44 provided on the bed 41 to face the.

The main shaft 42 is provided on one side of the shelf to rotate the chuck (42a) for fixing the cylindrical material.

The reciprocating table 43 includes a lower horizontal transport platform 43a, a vertical transport platform 43b provided on an upper portion of the lower horizontal transport platform 43a, and an upper horizontal transport platform 43c provided on an upper portion of the vertical transport platform 43b. It is configured to include, moves from side to side on the bed 41.

The tool rest (43d) is rotatably provided on the upper portion of the upper transverse transport (43c), and is equipped with a cutting tool to cut the cylindrical material.

According to the shelf, one end of the cylindrical material is fixed to the chuck (42a), the other end is supported by the center member (C) provided on the tailstock (44) to rotate the headstock (42), cutting tool Cylindrical material can be processed into various shapes while transferring the mounted reciprocating device in the vertical or horizontal direction.

In addition, while rotating the cylindrical material, the male or female screw can be processed while the reciprocating member is conveyed at a constant speed in the vertical direction, and a normal cylindrical worm can also be processed.

However, according to the above-mentioned conventional lathe, a cylindrical worm can be processed, but a long worm having a concave central portion is very difficult to process.

That is, since a conventional lathe can only transfer the tool rest 43d equipped with a cutting tool in one direction, either horizontally or vertically, it is very difficult to process a long worm having a concave center portion.

In order to process the above-described long-formed worm with a lathe, the reciprocating plate equipped with the cutting tool must be transferred in the transverse direction (bed direction) and at the same time in the longitudinal direction (workpiece direction), the forward and backward movements must be repeated.

That is, since the reciprocating table equipped with the cutting tool is automatically transferred in the horizontal direction (bed direction) (this is a method used when cutting a screw using a lead screw), the vertical conveying table 43b has to be manually advanced and retracted. , Long-formed worm's teeth cannot be precisely formed.

Accordingly, a 5-axis machine, which is an expensive equipment, is used when cutting a long worm.

However, the cutting method of a long-sized worm by a 5-axis machine is a method of cutting the material little by little while moving its position using a single cutting tool such as an end mill, so it takes a lot of processing time and productivity decreases. There is a problem that the price increases.

The present invention is to solve the above problems, it is to be able to quickly and precisely cut the long-length worm on a conventional lathe.

The long-form worm processing apparatus 50 according to the present invention, as shown in FIGS. 6 to 8, rotates in contact with the side surface of the cylindrical material, and simultaneously cuts the cylindrical material while conveying it vertically toward the cylindrical material. Forms long-formed worm's teeth.

That is, the long-sleeved worm processing apparatus 50 according to the present invention, as shown in Figure 7, a rotating body 51 provided with a plurality of cutting bites 52 on the circumference, and the rotating body 51 A first rotating shaft 54 for rotating, a second rotating shaft 55 provided to face the rotating body 51 in a vertical direction, and a driving motor 56 for driving the second rotating shaft 55 , A timing belt 57 connecting the first rotation shaft 54 and the second rotation shaft 55.

The timing belt 57 connects the first pulley 54a provided at the end of the first rotation shaft 54 and the second pulley 55a provided at the end of the second rotation shaft 55.

However, the present invention is not limited thereto, and power transmission of the second rotation shaft 54 and the first rotation shaft 55 may be achieved by various methods.

In addition, although not shown in the drawing, a reduction gear for controlling the speed of the driving motor 56 is further provided.

In addition, it is preferable that the fixed disk 51a and the fixing nut 53 are further provided on the upper portion of the rotating body 51.

The fixing disk 51a and the fixing nut 53 are assembled on the upper portion of the rotating body 51 to securely fix each cutting bite 52.

To this end, a male screw for forming a fixing nut 53 is formed at an upper end of the first rotating shaft 54, and a fixing handle 53a for tightening the fixing nut 53 is provided on one side of the fixing nut 53. ) Is provided.

In the above-described structure, when the driving motor 56 is driven to rotate the second rotating shaft 55, the first rotating shaft 54 and the rotating body 51 are rotated by the timing belt 57.

At this time, the second rotation shaft 55 of the worm processing apparatus 50 rotates simultaneously with the chuck 42a of the main shaft 42 by a rotation synchronization device (not shown) according to the worm gear reduction ratio.

By the rotation synchronization device, it is possible to form an accurate tooth on the outer circumference of the long-sized material W1 that is engaged with the cutting bit 52 provided on the rotating body 51 while continuously rotating.

Since the rotation synchronization device itself is a known technique, detailed description thereof will be omitted.

In addition, the long-form worm processing apparatus 50, it is preferable to transfer the vertical transfer table (43b) in the vertical direction by a linear servo motor (Linear Servo Motor) (not shown).

Since the linear servo motor is a known motor capable of controlling reciprocation and position, detailed description thereof will be omitted.

In addition, the long-sized worm processing apparatus 50 of the present invention is preferably provided detachably on the lower horizontal transfer table 43a provided on the bed 41.

By the above-described method, after removing the upper vertical transfer table 43c and the tool table 43d from the existing lathe, the long-formed worm can be cut by assembling the long-formed worm processing apparatus 50 according to the present invention. .

Accordingly, it is possible to significantly reduce the manufacturing cost of the long-form worm manufacturing apparatus.

However, the present invention is not limited thereto, and the long-sized worm processing device 50 may be manufactured integrally with a lathe.

In addition, the cutting tool (T) for manufacturing a long-length worm in the cutting device for a long-length worm according to the present invention, as shown in Figure 8, a plurality of cutting bite on the circumference of the circular rotating body 51 ( 52) is assembled.

That is, a plurality of cutting bites 52 may be assembled into the rotating body 51 itself by bolts.

In addition, the shape of the cutting bit 52 is preferably formed in a symmetrical shape. With this structure, when one side of the bite is worn, it is possible to change the direction and cut using the other side.

In addition, the cutting bite 52 is disposed in the same manner as the teeth of the worm, and the diameter of the circular rotating body 51 is formed to correspond to the curvature of the long worm.

That is, the rotating body 51 provided with the cutting bite 52 according to the present invention becomes a shape corresponding to the long-eared worm 30 and the worm wheel to be assembled later.

According to the circular cutting tool (T) according to the present invention, while the rotating body 51 is rotated according to the gear-shaped material (W1) and the worm gear reduction ratio fixed to the chuck (42a), a plurality of cutting bites (52) It is possible to form a tooth shape by simultaneously cutting the outer peripheral surface of the long spherical material W1.

<Second Example>

9 shows a second embodiment of the present invention.

The second embodiment according to the present invention is a modification of the structure of the cutting tool T in the first embodiment described above.

That is, as shown in Fig. 9, a plurality of cutting bites 52 are assembled with a bolt on the bite fixing member 52a formed in a partial arc, and the bite fixing member 52a on the partial arc has a rotating body 51. It is assembled with bolts on the outer periphery.

At this time, it is preferable that the arcuate length of each bite fixing member 52a matches the number of teeth of the worm to be processed. This takes into account that when machining a long worm, several bytes are cut simultaneously, rather than a single bit.

Since other matters are the same as those in the first embodiment, duplicate description will be omitted.

<Example 3>

10 shows a third embodiment of the present invention.

The third embodiment of the present invention is such that the first rotation shaft 54 and the second rotation shaft 55 are connected by a gear instead of a timing belt in the first embodiment described above.

That is, as shown in Figure 10, the long-sleeved worm processing apparatus 50, a rotating body 51 provided with a plurality of cutting bites 52 on a circumference, and for rotating the rotating body 51 The first rotating shaft 54, the driven gear 54b provided at the end of the first rotating shaft 54, the driven gear 54b meshed with the driven gear 54b, and the driving gear 55b It comprises a drive motor 56 for driving the second rotation shaft 55.

When the driving motor 56 is driven in the above-described structure, the driving gear 55b provided at the end of the second rotating shaft 55 rotates, and the first rotating shaft 54 rotates while the driven gear 54b engaged therewith rotates. ) To rotate the rotating body 51 and the cutting bite 52 provided thereon.

The first rotating shaft 54 also rotates simultaneously with the chuck 42a of the main shaft 42 by the rotation synchronization device according to the worm gear reduction ratio.

Since other matters are the same as those of the first embodiment described above, redundant descriptions will be omitted.

Hereinafter, a process of manufacturing a long-spheric worm according to the present invention will be described with reference to FIG. 11.

First, as shown in Figure 11 (a), after fixing one end of the cylindrical material (W1) to the chuck (42a) and the other end is supported by the center member (C) provided at the tip of the tailstock (44), The chuck 42a is rotated.

Subsequently, as shown in Fig. 11(b), the cutting material 52 is used to concave the cross section of the cylindrical material W so that the cross section decreases from both ends toward the central portion, so that the long material W1 is formed. It is possible (S10).

Here, the step S10 may be performed on a machine tool other than the lathe.

Subsequently, as shown in FIG. 11(c), the cutting tool T according to the present invention is rotated and at the same time it is moved in the vertical direction (material direction) while cutting the outer periphery of the material to form a tooth.

Here, the long-diameter material W1 fixed to the chuck 42a of the main shaft 42 and the circular cutting tool T provided in the reciprocator are rotated simultaneously by a synchronization device according to the worm gear reduction ratio (S20). .

At this time, the vertical feeder 43b equipped with the cutting tool T is transferred in the vertical direction (material direction) using a linear servomotor.

Then, as shown in FIG. 11(d), a plurality of cutting bites 52 simultaneously cut the outer circumference of the long-sized material W1 to form a tooth shape of the worm, and finally shown in FIG. 11(d). The long-sized worm 30 as described above can be manufactured.

Normally, the cylindrical worm 10 is manufactured by rolling (see FIG. 2) or cutting.

The above rolling method has the advantage that the structure is dense and the processing speed is fast, but there is a disadvantage that the tooth shape is not precise. Accordingly, it is not suitable for use as a machine part that requires high precision.

Accordingly, in the machine requiring high precision, a worm manufactured by cutting is used. According to the cutting process, there is an advantage that the tooth can be precisely processed.

On the other hand, the long worm 30 has a number of advantages compared to the general cylindrical worm 10, there is a problem in that it is very difficult to process in a general lathe.

That is, since the general cylindrical worm 10 has a constant cross-sectional shape, it can be cut on a regular lathe to form a tooth, but the long-sized worm 30 has a cross-sectional shape that changes to form a precise tooth on a regular lathe. Is very difficult.

Accordingly, an expensive 5-axis machine must be used to process a long-sized worm, and since the 5-axis machine uses a single cutting tool to change its position to form a tooth, the processing speed is very slow. There are disadvantages.

In addition, there is a problem in that manufacturing cost is increased because an expensive 5-axis machine must be used.

On the other hand, according to the apparatus and method for manufacturing a long-sized worm according to the present invention, a long-sized worm processing apparatus 50 having a relatively simple structure is mounted on a general lathe, so that the long-sized worms can be processed easily and precisely.

Accordingly, it is possible to rapidly manufacture a high-precision long-span worm at low cost.

In particular, since a plurality of cutting bites are simultaneously cut, the machining speed of the teeth is very fast, which can significantly improve productivity and lower manufacturing cost.

In the above, the preferred embodiment of the present invention is exemplarily described, and the present invention is not limited to the above-described embodiment. Those skilled in the art to which the present invention pertains will understand that various modifications and modifications are possible without departing from the scope of the technical spirit of the present invention.

10: cylindrical worm (Worm) 10a: worm shaft
10b: Cylindrical Die 20: Worm Wheel
30: Long Warham 30a: Warham Axis
40: shelf 41: bed
42: Headstock 42a: Chuck
43: shuttle 43a: lower side transport
43b: vertical transport 43c: upper horizontal transport
43d: tool bar 44: tailstock
50: long worm processing device 51: rotating body 51a: fixed disc 52: cutting bit 52a: bite fixing member 53: fixing nut 53a: fixing handle 54: first rotating shaft 54a: first pulley 54b: driven gear
55: second rotation shaft 55a: second pulley
55b: drive gear 56: drive motor (Motor)
57: Timing Belt
B: Bearing T: Cutting tool
W: Cylindrical material W1: Long spherical material

Claims (14)

The main shaft 42 for rotating the chuck 42a for fixing the cylindrical material, the bed 41 provided on one side of the main shaft 42, and mounted on the bed 41 in the horizontal and vertical directions In the Worm (Worm) manufacturing apparatus comprising a reciprocating table (43) to be transferred, and a tailstock (44) provided on the bed (41) to face the main shaft (42),
Further comprising a long-length worm processing apparatus 50 provided on the bed 41,
The long-form worm processing apparatus 50,
At the same time, it rotates in contact with the side surface of the cylindrical material, while cutting it in a vertical direction toward the cylindrical material, thereby cutting the cylindrical material to form a tooth shape of a long-sized worm,
The long-form worm processing apparatus 50,
A plurality of cutting bite 52 is provided on the circumference and is disposed horizontally with respect to the material to rotate the disc-shaped rotating body 51,
A first rotation shaft 54 is provided vertically to rotate the rotating body 51 in front of the material,
A second rotation shaft 55 provided vertically to face the rotation body 51 in the vertical direction from the rear of the material,
A driving motor 56 for driving the second rotating shaft 55,
It comprises a timing belt 57 connecting the first rotational shaft 54 and the second rotational shaft 55 at the bottom of the material,
The first rotating shaft 54 and the second rotating shaft 55 of the long-formed worm processing apparatus 50 rotate at the same time as the chuck 42a of the main shaft 42 by a rotation synchronization device according to the worm gear reduction ratio,
A plurality of cutting bites 52 are assembled to the bite fixing member 52a formed in a partial arc shape by bolts,
The bit arc-shaped retaining member 52a is assembled with a bolt on the outer periphery of the disk-shaped rotating body 51,
A fixed disk 51a and a fixing nut 53 for fixing the cutting bite 52 are provided on an upper portion of the rotating body 51,
The disk-shaped rotating body 51 provided with the cutting bite 52 rotates horizontally according to the worm gear reduction ratio with the long gear W1 fixed to the chuck 42a while simultaneously transporting it in the material direction. The cutting bit 52 of the long-form worm manufacturing apparatus, characterized in that for cutting the entire outer circumferential surface of the material (W1) at the same time. delete delete delete According to claim 1,
The long-form worm processing apparatus 50,
Long-term worm manufacturing apparatus characterized in that it is reciprocated in the vertical direction toward the cylindrical material by a linear servo motor. According to claim 1,
The long worm processing apparatus 50 is a long worm manufacturing apparatus characterized in that it is provided detachably on the lower horizontal transfer table (43a) provided on the bed (41). According to claim 1,
The long-form worm processing apparatus 50,
A rotating body 51 provided with a plurality of cutting bites 52 on the circumference,
A first rotating shaft 54 for rotating the rotating body 51,
A driven gear 54b provided at an end of the first rotating shaft 54,
A driving gear (55b) engaged with the driven gear (54b),
And a drive motor (56) for driving the second rotation shaft (55) of the drive gear (55b). delete delete delete delete delete delete delete

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