JP2003011023A - Manufacturing apparatus for cylindrical body and manufacturing method for cylindrical body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the machining accuracy for a cylindrical body by reducing the run-out amount of a press fitting member to be stabilized, and stabilizing the bonding strength of a pipe member and the press fitting member. SOLUTION: In first and second sliders 17, 19, first and second main shafts 13, 14 holding the pipe member 2 and the press fitting member 3 are moved to a tool rest 20, thereby cutting the pipe member 2 and the press fitting member 3, respectively, and the second main shaft 14 is moved in the direction of approaching the first main shaft 13 to thereby press-fit and connect the pipe member 2 and the press fitting member 3 to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tubular body manufacturing apparatus and a tubular body manufacturing method in which a press-fitting member is press-fitted to one end of a pipe member. Further, the present invention is
In particular, it is applied to manufacture, for example, a sleeve used as a cylindrical functional member included in an electrophotographic apparatus or the like.

[0002]

2. Description of the Related Art As an electrophotographic apparatus, for example, a copying machine is
As a cylindrical functional member, a sleeve is provided, which is rotationally driven by a gear of a rotary drive mechanism included in the toner supply unit and supplies the toner attached to the outer peripheral portion.

A sleeve of this type includes a cylindrical pipe member and a press-fitting member press-fitted to one end of the pipe member. The press-fitting member has a shaft portion to which a gear for rotationally driving the pipe member is attached, and a flange portion formed in a flange shape at one end of the shaft portion and press-fitted into the pipe member.

The conventional sleeve manufacturing method for manufacturing the above-mentioned sleeve includes a cutting step in which the press-fitting member and the pipe member which are structurally necessary parts are individually cut into a predetermined processing size by a machine tool or the like. The sleeve has been manufactured through a press-fitting process in which the press-fitting member and the pipe member that have been cut in this cutting process are press-fitted and coupled by a dedicated jig, a press-fitting device, or the like.

In the cutting process, the outer diameter and the end surface of the flange portion were cut on the press-fitting member.
Further, in the cutting step, a press-fitting recess (hereinafter referred to as a spigot part) for press-fitting the flange portion of the press-fitting member has been cut on the pipe member.

Further, conventionally, when the press-fitting member and the pipe member are press-fitted to each other, a groove or the like is formed on the outer periphery of the flange portion of the press-fitting member so as to press the cutting roller or the rolling roller in order to secure the joining strength preferentially. In some cases, it is formed by rolling. The press-fitting member is capable of easily ensuring the press-fitting strength of the flange portion by forming a groove or the like in the flange portion.

The sleeve in which the press-fitting member is press-fitted and coupled to one end of the pipe member to be integrally formed is
On the shaft portion engaged with the gear, one parallel surface parallel to the axial direction (referred to as D cut) or two parallel surfaces parallel to the axial direction (referred to as H cut) is cut. As a result, the gear is prevented from slipping, and is configured to be rotationally driven integrally with the gear.

Such a flattening process is generally performed in cooperation with the press-fitting process, and is performed by a dedicated jig or machine tool. The shaft portion of the press-fitting member that is press-fitted into the pipe member may be preliminarily formed with parallel surfaces (one surface or two surfaces) parallel to the axial direction.

[0009]

By the way, in the conventional sleeve manufacturing method, since the press-fitting member and the pipe member are individually cut in the cutting step, when the press-fitting member or the pipe member is cut. It is necessary to attach and detach the press-fitting member and the pipe member on the machine tool, respectively.

That is, since the press-fitted member and the pipe member that have been cut are respectively gripped and cut by the chuck on the machine tool side, they are individually cut according to a predetermined gripping standard, that is, a predetermined working standard. It is formed as a machined part.

Therefore, in the conventional sleeve manufacturing method, the press-fitting member and the pipe member, which have been cut according to different working standards, are press-fitted and coupled in the subsequent press-fitting process with different working standards as references. was there. Further, there is a similar problem in the plane processing step of forming the parallel surface on the shaft portion of the press-fitting member described above.

Therefore, the conventional sleeve manufacturing method is
Since the cutting process for cutting the press-fit member and the cutting process for cutting the pipe member are independent,
In order to guarantee the quality in each cutting process, it has been necessary to control the processing size for press-fitting in the next process (hereinafter referred to as the press-fitting size) to be within a predetermined allowable value.

However, controlling the press-fitting dimensions in each cutting process in this way imposes a load on each cutting process even if the capability of each cutting process is sufficient, resulting in a decrease in productivity. There is.

Therefore, the conventional sleeve manufacturing method is
It has been considered to add another process such as a groove processing process for processing a groove or the like to the flange portion of the press-fitting member or a rolling process for rolling with a rolling roller. However, by adding the other processing steps described above, it becomes easy to ensure the bonding strength between the press-fitting member and the pipe member, while the flange portion of the press-fitting member is deformed due to bending or the like that occurs during additional processing. The amount of runout (deviation of the axis of the press-fitting member relative to the axis of the pipe member) is also a factor that increases.

Further, the conventional sleeve manufacturing method has a problem that the pipe member is scratched or the like when the cut pipe member is conveyed to the press-fitting step.

Therefore, the present invention prevents the surface from being scratched and stabilizes the amount of vibration generated in the flange portion of the press-fitting member to be small and stabilizes the coupling strength between the press-fitting member and the pipe member. An object of the present invention is to provide a tubular body manufacturing apparatus and a tubular body manufacturing method capable of significantly improving the processing accuracy of the tubular body.

[0017]

In order to achieve the above-mentioned object, the apparatus for manufacturing a tubular body according to the present invention has a shaft portion at one end of a tubular pipe member and a flange shape at one end of the shaft portion. It is an apparatus for manufacturing a tubular body in which a flange portion of a press-fitting member having a formed flange portion is press-fitted and coupled. This tubular body manufacturing apparatus includes processing means for respectively cutting the flange portion of the press-fitting member and cutting the press-fitting recess for press-fitting the flange portion at one end of the pipe member.
Further, the manufacturing apparatus of this tubular body holds the pipe member and the press-fitting member, respectively, conveys the pipe member and the press-fitting member to a predetermined processing position of the processing means, and at the same time, transfers the pipe member and the press-fitting member to the predetermined processing position. A pipe member moving means and a press-fitting member moving means for respectively positioning the press-fitting members are provided. Then, the pipe member moving means and the press-fitting member moving means move the pipe member and the press-fitting member with respect to the processing means, whereby the press-fitting portion and the press-fitting concave portion are respectively cut, and the pipe member Also, the pipe member and the press-fitting member are press-fitted to each other by moving one of the press-fitting members in the direction in which the other is brought closer to the other.

According to the apparatus for manufacturing a tubular body constructed as described above, the pipe member is held by the pipe member moving means and the press-fitting member is held by the press-fitting member moving means, and the flange portion and The press-fitting recesses are each cut. Further, according to the manufacturing apparatus of this tubular body, by moving one of the pipe member moving means and the press-fitting member moving means in the direction in which the other approaches, the pipe member held by the pipe member moving means and the press-fitting member are pressed. The press-fitting member held by the member moving means is press-fitted and coupled. Therefore, according to this tubular body manufacturing apparatus, the pipe member and the press-fitting member that have been cut by the processing unit are not released from their holding states by the pipe member moving unit and the press-fitting member moving unit, respectively, and The press-fitting member is press-fitted and coupled. Therefore, according to this tubular body manufacturing apparatus, the processing accuracy of the manufactured tubular body is improved.

The tubular body manufacturing apparatus according to the present invention is
Measuring means for respectively measuring respective processing dimensions of the pipe member and the press-fitting member cut by the processing means, and control means for feedback-controlling the pipe member moving means and the press-fitting member moving means based on the respective measured values by the measuring means. Is preferably provided, and the processing accuracy is further improved.

The method for manufacturing a tubular body according to the present invention is
A tubular body is manufactured in which a flange portion of a press-fitting member having a shaft portion and a flange portion formed in a flange shape at one end of the shaft portion is press-fitted and coupled to one end of the tubular pipe member. This method for manufacturing a tubular body includes a first step of cutting a press-fitting concave portion for press-fitting the flange portion of the press-fitting member and the flange portion at one end of the pipe member according to a predetermined machining standard.
The pipe member and the press-fitting member are press-fitted to each other according to the predetermined processing standard, and the second process is performed.

According to the method of manufacturing the tubular body configured as described above, the processing standard for cutting the pipe member and the press-fitting member and the processing standard for press-fitting the pipe member and the press-fitting member together. Are the same, the processing accuracy of the manufactured sleeve is improved.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a specific embodiment of the present invention will be described with reference to the drawings with regard to a sleeve manufacturing apparatus and a sleeve manufacturing method.

The sleeve manufactured by the sleeve manufacturing apparatus of this embodiment is rotationally driven by the gear of the rotary drive mechanism of the toner supply unit, which is a cylindrical functional member of an electrophotographic apparatus such as a copying machine. It is used as a sleeve for supplying the toner attached to the outer peripheral portion.

As shown in FIG. 2, this sleeve comprises a cylindrical pipe member 2 and a press-fitting member 3 press-fitted to one end of the pipe member 2. The press-fitting member 3 includes a shaft portion 5 to which a gear (not shown) for rotationally driving the pipe member 2 is attached, and a flange portion 6 formed in a flange shape at one end of the shaft portion 5 and press-fitted into the pipe member 2. have. The pipe member 2 and the press-fitting member 3, which are respectively supplied to the sleeve manufacturing apparatus, have an unfinished form in which a relatively small amount of a predetermined finishing machining allowance is left at a predetermined processing location.

As shown in FIG. 1, a sleeve manufacturing apparatus 1
Is a parts feeder 11 for supplying a plurality of press-fitting members 3 including a finishing allowance, a pipe stocker 12 for supplying a plurality of pipe members 2 including a finishing allowance, and a stocker 12 for supplying the pipes. It has a first main shaft 13 for holding the pipe member 2 and a second main shaft 14 for holding the press-fitting member 3 supplied from the parts feeder 11.

The sleeve manufacturing apparatus 1 includes the first
The main shaft 13 of the arrow a₁Direction and a₂Can be moved in any direction
Hold the first headstock 16 and the first headstock 16 with an arrow.
Mark b ₁Direction and b₂First support for movably supporting the direction
Connect the rider 17 and the second spindle 14 with the arrow a₁Direction and a₂
The second headstock 18 that supports the first headstock 18 so as to be movable in the direction
2 headstock 18 with arrow b₁Direction and b₂Can move in any direction
And a second slider 19 that supports the second slider 19.

The sleeve manufacturing apparatus 1 also includes a tool rest 20 for cutting the pipe member 2 and the press-fitting member 3, and a milling unit 21 for milling the press-fitting member 3.

Further, the sleeve manufacturing apparatus 1 includes a pipe measuring unit 23 and a flange measuring unit 24, which measure the machining dimensions of the machined pipe member 2 and press-fitting member 3, respectively. A control unit 28 for feedback controlling the cutting process based on each measurement value measured by the units 23 and 24,
A stocker 25 for a finished product in which a sleeve, which is a finished product, in which the pipe member 2 and the press-fitting member 3 are press-fitted and coupled is accommodated is provided.

The parts feeder 11 is arranged at a position adjacent to the tool rest 20 and houses a plurality of press-fitting members 3. The parts feeder 11 sequentially presses the press-fitting members 3 one by one.
It has a supply port which pushes out and supplies it one by one, and the press-fitting member 3 pushed out from this supply port is gripped by the second main shaft 14 at the position P ₁ .

The stocker 12 for loading a pipe is arranged at a position adjacent to the first main shaft 13 and houses a plurality of pipe members 2. Stocker 12 for inserting pipes
Has a supply port for supplying the pipe members 2 one by one, and the pipe member 2 supplied from this supply port is gripped by the first main shaft 13 at the position P ₆ .

The first and second main shafts 13 and 14 are arranged such that their axial directions are parallel to each other and are opposed to each other with the tool rest 20 interposed therebetween. First and second
The main shafts 13 and 14 are provided with chucks 26 and 27 for gripping the press-fitting member 3 and the pipe member 2, respectively, at one end facing the tool rest 20. As the chucks 26 and 27, collet type chucks are applied, and the chucks can be satisfactorily gripped regardless of the dimensions of the press-fitting member 3 and the pipe member 2 to be supplied.
Also, by applying a collet type chuck,
The pipe member 2 and the press-fitting member that have been cut are not affected by the respective sizes of the pipe member 2 and the press-fitting member 3 that are supplied to the sleeve manufacturing apparatus 1 before processing, and that there is no need to manage the respective dimensions before processing. It is possible to suppress the change in each processing dimension of No. 3 above.

The first and second headstocks 16 and 18 are movably supported along the first and second sliders 17 and 19 in the directions of arrows b ₁ and b ₂ , respectively. The first and second sliders 17 and 19 have a base 29.
They are provided above. Therefore, the first and second spindles 13 and 14 are driven by a drive mechanism (not shown) so as to be orthogonal to each other via the first and second sliders 17 and 19 and the first and second spindle headstocks 16 and 18.
It is moved in the ₁ direction and the a ₂ direction, and in the arrow b ₁ direction and the b ₂ direction, respectively.

The tool rest 20 is fixedly installed on a base 29.
And a predetermined position P on the main surface₂The pipe member
Cutting tools (not shown) for cutting 2 and press-fitting member 3
Are provided respectively. The milling unit 21
Position P on the main surface of the turret 20 _FiveIt is provided in
Not a milling machine and the driving machine that drives this milling machine
It has a structure.

Each measuring unit 23, 24 is equipped with a tool rest 20.
It is fixedly provided at the upper position P ₃ . Each of the measuring units 23 and 24 processes each of the press-fitting member 3 and the pipe member 2 processed at a predetermined cycle such that, for example, when several tens of the pipe member 2 and the press-fitting member 3 are processed, one of them is measured. The respective dimensions are measured and the respective measured values are supplied to the control unit 28.

The control unit 28 is an amplifier (not shown).
Etc., and is fixedly provided to the first headstock 16. The control unit 28 includes the measurement units 23,
When cutting the press-fitting member 3 and the pipe member 2 on the basis of the respective measured values supplied from 24, the first and second spindles 1 and 2 are responsive to a predetermined NC machining program.
By controlling the respective movement amounts of 3 and 14, the processing dimension is kept within a predetermined allowable value. Although not shown, the control unit 28 also has a display section for displaying each measurement value, so that the processing status can be easily confirmed.

The stocker 25 for the finished product includes the second spindle 1
4 is provided at a position adjacent to the sleeve 4, and the sleeve in which the grip of the second main shaft 14 by the chuck is released is inserted.

Further, the sleeve manufacturing apparatus 1 described above is
Depending on the size and shape of the multiple types of sleeves to be manufactured,
In order to be able to supply other types of press-fitting members 3 and pipe members 2 having different sizes and the like, a parts feeder 11, a stocker 12 for loading a pipe and a stocker 25 for a finished product are detachably provided respectively. The replacement unit (not shown) can be easily replaced.

Similarly, in the sleeve manufacturing apparatus 1, other types of press-fitting members 3 and pipe members 2 having different sizes and the like are used in accordance with the sizes and shapes of the plurality of types of sleeves to be manufactured.
Accordingly, the cutting tool of the tool rest 20 and the milling cutter of the milling unit 21 can be easily replaced by a replacement unit (not shown). The replacement unit is also a cutting tool for the tool rest 20 and a milling unit 21 on the axes of the first and second spindles 13, 14.
It is possible to replace each milling cutter.

With respect to the sleeve manufacturing apparatus 1 configured as described above, the operation of manufacturing the sleeve will be described with reference to the drawings.

In this sleeve manufacturing apparatus 1, the press-fitting member 3 and the pipe member 2 supplied from the parts feeder 11 and the stocker 12 for loading the pipe, respectively.
Is discharged to the finished product stocker 25 as a sleeve through positions P ₁ to P ₆ in the apparatus.

First, in the parts feeder 11, a predetermined number of semi-finished press-fitting members 3 in which a finishing allowance is left are manually loaded and stored. In the stocker 12 for loading pipes, a predetermined number of semi-finished pipe members 2 with a finishing allowance left are manually loaded and stored.

In the sleeve manufacturing apparatus 1, at the position P ₁ , the parts feeder 11 presses the press-fitting member 3 at a predetermined cycle.
Is automatically supplied, and the supplied press-fitting member 3 is gripped by the chuck 27 of the second spindle 14.

At the position P ₂ , the press-fitting member 3 gripped by the chuck 27 of the second spindle 14 has the second spindle headstock 18 and the second slider 19 moved in accordance with the NC machining program for the predetermined machining. By doing so, the turret 2
The second spindle 14 is moved with respect to the cutting tool attached to 0, and the flange portion 6 is cut to a predetermined machining size and shape on the axis of the second spindle 14 by the cutting tool.

At the position P ₃ , the cut press-fitting member 3 has a predetermined processing size (same as the press-fitting size) periodically measured by the flange measuring unit 24. The control unit 28 controls the second headstock 18 based on the measurement value obtained by measuring the press-fitting member 3 by the flange measuring unit 24.
By performing feedback control of the second slider 19, the processing dimension is corrected so as to be within the allowable value.

Therefore, the press-fitting member 3 has its work size corrected, so that the work size can be easily guaranteed, and the press-fit strength is sufficiently ensured. Therefore, in order to increase the press-fitting strength, the press-fitting member 3 does not need to be additionally processed on the surface by cutting a groove on the outer peripheral portion of the flange portion 6 or rolling using a rolling roller.

At position P ₆ , the sleeve manufacturing apparatus 1
Is a stocker 12 for pipe loading at a predetermined timing.
The pipe member 2 is automatically supplied from the above, and the supplied pipe member 2 is gripped by the chuck 26 of the first main spindle 13.

At the position P ₂ , the pipe member 2 gripped by the chuck 26 of the first main shaft 13 is NC of predetermined processing.
The first headstock 16 and the first slider 17 are respectively moved according to the machining program, so that the first headstock 13 with respect to the cutting tool attached to the tool rest 20.
Is moved and the spigot portion 7 is cut into a predetermined machining size and shape on the axis of the first main spindle 13 by the cutting tool.

At the position P ₃ , the cut pipe member 2 is periodically measured for a predetermined processing size by the pipe measuring unit 23. The control unit 28
The pipe measuring unit 23 feedback-controls the first headstock 16 and the first slider 17 on the basis of the measured value of the pipe member 2, thereby correcting the machining dimension so as to be within the allowable value.

At position P ₄ , the sleeve manufacturing apparatus 1 includes the pipe member 2 held by the chuck 26 of the first main spindle 13 and the press-fitting member 3 held by the chuck 27 of the second main spindle 14. In the gripping state, by bringing the second main spindle 14 closer to the first main spindle 13 in the axial direction,
The flange portion 6 of the press-fitting member 3 is press-fitted and coupled to the spigot portion 7 of the pipe member 2 on the axes of the first and second main shafts 13 and 14. The moving distance of the first and second spindles 13 and 14 when press-fitting is managed by the NC machining program. Therefore, according to the sleeve manufacturing apparatus 1, the press-fitted state can be easily controlled by a numerical value, so that the quality control of the sleeve is facilitated.

In the sleeve manufacturing apparatus 1, after the press-fitting member 3 is press-fitted into the pipe member 2, the gripped state of the press-fitting member 3 press-fitted into the pipe member 2 by the chuck 27 of the second main spindle 14 is released. Then, after the second spindle 14 is moved backward, it is moved to the initial position P ₁ and returned to the initial position.

Finally, at the position P ₅ , the pipe member 2 (hereinafter referred to as a sleeve blank) into which the press-fitting member 3 is press-fitted is maintained in the gripping state of being gripped by the chuck 26 of the first main spindle 13. Then, the milling unit 21 forms a parallel surface parallel to the axial direction of the shaft portion 5 by milling on the outer peripheral portion of the shaft portion 5 of the press-fitting member 3.

Then, at the position P ₆ , the first spindle 1
The blank of the sleeve milled in the gripping state held by the chuck 26 of No. 3 is discharged when the gripping state of the first spindle 13 by the chuck 26 is released, and is accommodated in the stocker 25 for the finished product. To be done. In the sleeve manufacturing apparatus 1, the completed sleeve is the first spindle 13
Is discharged to the stocker 25 for finished products by the stocker 12 for pipe loading and the next pipe member 2
Are sequentially supplied to the first spindle 13. As described above, the sleeve manufacturing apparatus 1 continuously performs a series of complex processing operations.

Finally, a sleeve manufacturing method using the above-described sleeve manufacturing apparatus will be described with reference to the drawings.

As shown in FIG. 2, the sleeve is manufactured by cutting the flange portion 6 of the press-fitting member 3 and the spigot portion 7 for press-fitting the flange portion 6 into one end of the pipe member 2 according to a predetermined machining standard. The first step, the second step of press-fitting the pipe member 2 and the press-fitting member 3 according to the predetermined processing standard of the first step, and the sleeve blank according to the predetermined processing standard of the first step. It is manufactured through a third step of cutting the parallel surface 8 on the shaft portion 5.

As shown in FIGS. 2 and 3, the first step is a cutting step for cutting the outer diameter and the end surface of the flange portion 6 of the press-fitting member 3 according to a predetermined processing standard. In addition, this first step is performed by the pipe member 2 according to a predetermined processing standard.
Is a cutting process for cutting the spigot part 7 at one end of the.

In the second step, as shown in FIG. 4, the pipe member 2 and the press-fitting member 3 are processed by cutting, and the flange portion 6 of the press-fitting member 3 is attached to the spigot portion 7 of the pipe member 2.
Is a press-fitting step of press-fitting.

In the third step, as shown in FIG. 5, the pipe member 2 and the press-fitting member 3 are cut and processed in parallel with the outer peripheral portion of the shaft portion 5 of the sleeve blank in the axial direction of the shaft portion 5. This is a plane processing step of cutting the parallel surface 8.

As described above, according to the sleeve manufacturing apparatus 1 and the sleeve manufacturing method, the cutting process and the press-fitting process are performed in a series of continuous working operations with the same working reference as a reference. The amount of deflection of the press-fitting member 3 press-fitted and coupled can be stabilized to a small level, the coupling strength between the pipe member 2 and the press-fitting member 3 can be stabilized, and the processing accuracy of the sleeve can be greatly improved.

In addition, according to the sleeve manufacturing apparatus 1 and the sleeve manufacturing method, the measuring units 23 and 24 are provided.
By periodically feedback-controlling each measured value measured by, it is possible to reliably control the press-fitting dimension, and particularly the pipe member 2 and the press-fitting member 3
Stabilization of bond strength with

According to the sleeve manufacturing apparatus 1 and the sleeve manufacturing method, the pipe member 2 and the press-fitting member 3 are chucks 2 for the first and second main shafts 13 and 14.
By performing the press-fitting process in the gripped state held by 6, 27, it is possible to prevent the processed parts of the pipe member 2 and the press-fitting member 3 from being scratched or the like during transportation between the steps.

Further, according to the sleeve manufacturing apparatus 1 and the sleeve manufacturing method, since the milling unit for milling is provided, the machining can be performed while the first spindle 13 is gripped by the chuck 26. The processing accuracy of the surface 8 can be improved.

According to the sleeve manufacturing apparatus 1 and the sleeve manufacturing method, the first and second main spindles 13, 1 are
By moving 4 by the first and second sliders 17 and 19, the cycle time can be shortened. Further, according to the sleeve manufacturing apparatus 1 and the sleeve manufacturing method, the cutting process and the press-fitting process are performed in a combined manner, so that the pipe member 2 and the press-fitting member 3, which are works, can be attached and detached only once, and the sleeve The cycle time per piece can be shortened to 10 seconds / piece or less, and the manufacturing cost of the sleeve can be reduced.

Further, according to the sleeve manufacturing apparatus 1 and the sleeve manufacturing method, the first and second main shafts 13, 1 are provided.
Since the ON / OFF switching operation for controlling the rotation operation of No. 4 is required only once, it is possible to contribute to the saving of electric energy. Further, according to the sleeve manufacturing apparatus 1 and the sleeve manufacturing method, it is possible to minimize the number of work-in-process products by consolidating a plurality of processing steps in the same apparatus. The press-fit accuracy of the sleeve can be controlled by controlling the processing dimension that can be easily controlled as a substitute.

The press-fitting member 3 supplied to this embodiment.
Is a parallel surface (1) parallel to the axial direction on the outer peripheral portion of the shaft portion 5.
Surface or two surfaces) may be formed in advance. In this case, as a matter of course, the planar processing is excluded from the interlocking operations shown in the sleeve manufacturing apparatus and the sleeve manufacturing method described above.

[0065]

As described above, according to the present invention, the cutting process and the press-fitting process of the pipe member and the press-fitting member are performed based on the same processing standard, so that the deflection amount of the press-fitting member is stabilized to be small and the pipe It is possible to stabilize the coupling strength between the member and the press-fitting member, and thereby significantly improve the processing accuracy of the tubular body.

[Brief description of drawings]

FIG. 1 is a plan view schematically showing a sleeve manufacturing apparatus according to the present invention.

FIG. 2 is a schematic view showing an incomplete press-fitting member and an incomplete pipe member supplied to the sleeve manufacturing apparatus.

FIG. 3 is a schematic view showing a press-fitting member having a flange portion cut and a pipe member having a spigot portion cut.

FIG. 4 is a schematic view showing a state in which the press-fitting member is press-fitted and coupled to the pipe member.

FIG. 5 is a schematic view showing a state in which a parallel surface is formed on the shaft portion of the press-fitting member.

[Explanation of symbols]

1 Sleeve manufacturing equipment 2 pipe members 3 Press-fitting member 5 shafts 6 Flange 7 Inlay part 8 parallel planes 11 parts feeder 12 Stocker for loading pipes 13 First spindle 14 Second spindle 16 First headstock 17 First slider 18 Second headstock 19 Second slider 20 Turret 23 Measuring unit for pipes Measuring unit for 24 flanges 25 Stocker for finished products 26,27 chuck 28 Control unit 29 base

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Claims (16)

[Claims] 1. A tubular body in which a flange portion of a press-fitting member having a shaft portion and a flange portion formed in a flange shape at one end of the shaft portion is press-fitted and coupled to one end of the tubular pipe member. A device, a processing means for respectively performing cutting processing of the flange portion of the press-fitting member and cutting processing of a press-fitting recess for press-fitting the flange portion at one end of the pipe member, the pipe member and the Hold each press-fitting member,
A pipe member moving means and a press-fitting member moving means for respectively transporting the pipe member and the press-fitting member to a predetermined working position of the working means and positioning the pipe member and the press-fitting member with respect to the predetermined working position, respectively. Comprising the pipe member moving means and the press-fitting member moving means, by moving the pipe member and the press-fitting member with respect to the processing means, the press-fitting portion and the press-fitting concave portion are respectively cut, An apparatus for manufacturing a tubular body, wherein the pipe member and the press-fitting member are press-fitted to each other by moving one of the pipe member and the press-fitting member in a direction in which the other is brought close to each other. 2. The tubular body according to claim 1, further comprising a pipe member supply means and a press-fitting member supply means for respectively supplying the unfinished pipe member and the unfinished press-fitting member including a predetermined amount of finishing allowance. Manufacturing equipment. 3. At least one of the pipe member supply means, the press-fitting member supply means, and the processing means is detachably provided corresponding to a plurality of types of pipe members or press-fitting members, and is detachable. The apparatus for manufacturing a tubular body according to claim 1 or 2, further comprising an exchanging means for exchanging any one of the above. 4. The pipe member moving means has a first main shaft for positioning the pipe member, and the press-fitting member moving means has a second main shaft for positioning the press-fitting member. The pipe member and the press-fitting member are press-fitted to each other by moving one of the first and second main shafts in a direction in which the other is axially approached. Item 1. The apparatus for producing a tubular body according to item 1. 5. The pipe member moving means and the press-fitting member moving means are respectively provided with the first and second main shafts at positions where their respective axial directions are parallel and opposed to each other. Manufacturing equipment for cylindrical body. 6. A measuring means for respectively measuring respective processing dimensions of the pipe member and the press-fitting member cut by the processing means, and the pipe member moving means and the press-fitting based on respective measured values by the measuring means. The tubular body manufacturing apparatus according to any one of claims 1 to 5, further comprising: a control unit that feedback-controls the member moving unit. 7. The outer peripheral portion of the shaft portion of the press-fitting member is further provided with another processing means for cutting a parallel surface parallel to the axial direction of the shaft portion.
Item. The apparatus for producing a tubular body according to item. 8. A first part for cutting the press-fitting recess of the pipe member and the flange part of the press-fitting member, respectively.
And a second processing for press-fitting and coupling the pipe member and the press-fitting member, and cutting a parallel surface parallel to the axial direction of the shaft portion on the outer peripheral portion of the shaft portion of the press-fitting member. The apparatus for manufacturing a tubular body according to claim 7, wherein the machining of 3 is performed on each axis of the first and second main shafts and on an axis parallel to each axis. 9. The tubular body manufacturing apparatus according to claim 4, wherein the exchanging unit exchanges the processing unit on each axis of the first and second main shafts. 10. A tubular body in which the flange portion of a press-fitting member having a shaft portion and a flange portion formed in a flange shape at one end of the shaft portion is press-fitted and coupled to one end of the tubular pipe member. A first step of cutting a press-fitting concave portion for press-fitting the flange portion into one end of the flange portion and the pipe member of the press-fitting member, respectively, according to a predetermined working standard; The method for manufacturing a tubular body, which is manufactured through the second step of press-fitting and coupling the pipe member and the press-fitting member on the basis of the processing standard. 11. The production of the tubular body according to claim 10, wherein the unfinished pipe member including a predetermined amount of finishing allowance and the unfinished press-fitting member are respectively supplied to the first step. Method. 12. The manufacturing method according to claim 3, wherein the outer peripheral portion of the shaft portion of the press-fitting member press-fitted and coupled to the pipe member is subjected to a third step of cutting a parallel surface parallel to the axial direction of the shaft portion. The method for producing a tubular body according to 10 or 11. 13. The method according to claim 12, wherein in the third step, the parallel surface is cut on an axis parallel to a processing axis for cutting the flange portion and the press-fitting recess in the first step. A method for producing the described tubular body. 14. A processing means for cutting the flange portion and the press-fitting recess on an axis parallel to a processing axis for cutting the flange portion and the press-fitting recess in the first step. The method for manufacturing the tubular body according to claim 10. 15. The method according to claim 10, wherein the machined dimensions of the machined pipe member and the press-fitted member are measured, and the machining process of the first step is feedback-controlled based on the measured values. The method for manufacturing the tubular body according to any one of claims. 16. A first process for cutting the press-fitting recess of the pipe member and the flange part of the press-fit member, respectively, and a second process for press-fitting and coupling the pipe member and the press-fit member, Third processing of cutting a parallel surface parallel to the axial direction of the shaft portion on the outer peripheral portion of the shaft portion of the press-fitting member, and cutting the flange portion and the press-fitting concave portion of the first step. 16. The method for producing a tubular body according to claim 13, wherein the method is carried out on a working axis line and on an axis line parallel to the working axis line.