JPH06166017A - Cutter of ceramic pipe and method for cutting ceramic pipe by using the same - Google Patents

Abstract

PURPOSE:To efficiently cut and work a ceramic pipe used as the solid electrolyte pipe of e.g. a sodium-sulfur cell with high dimensional precision without causing a fault such as chippings. CONSTITUTION:A piece of driving shaft 4 is axially parallel to the supporting member 2 of a ceramic pipe 1 or has a specified angle therefor. A rotary cutter 3 is constituted by arranging an edge 5 for preliminary cutting and an edge 6 for regular cutting closely to the driving shaft 4. A ceramic pipe is cut by the rotary cutter 3 without causing dislocation of a center.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceramic pipe cutting apparatus capable of efficiently cutting a product having high dimensional accuracy with a single apparatus and a ceramic pipe cutting method using the same.

[0002]

2. Description of the Related Art For example, a ceramic pipe used as a solid electrolyte tube of a sodium-sulfur battery is required to have a product with extremely high dimensional accuracy due to battery assembly problems, durability problems, and the like. In the cutting process, the preliminary cutting was performed before the main cutting, and the cut surface was subjected to cutting and chamfering.

However, in the conventional cutting method, the above-mentioned preliminary cutting, main cutting, cutting / chamfering processing, etc. are all performed separately by a single device, so that the working efficiency is extremely deteriorated and the centering work is difficult. However, there was a problem that the dimensional accuracy of the product would not meet the quality standard. In addition, there is a problem that a vast installation space for disposing the separate devices is required and the maintenance work for them is also increased.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, and enables centering with certainty to cut a product with high dimensional accuracy extremely efficiently. The present invention has been completed for the purpose of providing a ceramic pipe cutting device which requires a small installation space and facilitates maintenance work of the device, and a ceramic pipe cutting method using the same.

[0005]

SUMMARY OF THE INVENTION The present invention, which has been made to solve the above-mentioned problems, includes a support member for holding a ceramic pipe and an axis parallel to the support member or having a certain angle. The drive shaft is composed of a preliminary cutting blade and a rotary cutter in which a main cutting blade having a diameter slightly smaller than that of the rotary cutter is mounted in close proximity to the drive shaft, and at least one of the rotary cutter and the support member is capable of coming into contact with and separating from the other. A first aspect of the present invention is a cutting device for a ceramic pipe, comprising: a supporting member for holding the ceramic pipe; and a blade for preliminary cutting on a drive shaft having an axis parallel to the supporting member or having a certain angle. And a rotary cutter with a slightly smaller diameter main cutting blade mounted in close proximity and a cutting surface finishing tool at a position slightly separated from both blades. A second aspect of the present invention is a ceramic pipe cutting device, characterized in that at least one of the connector and the support member is movable toward and away from the other and is movable in the axial direction. While holding the ceramic pipe in the member, the pre-cutting blade and the main cutting blade having a diameter slightly smaller than that of the pre-cutting blade are attached in close proximity to one drive shaft which is parallel to the supporting member or has a certain angle. Along with rotating the rotary cutter equipped with a cutting surface finishing tool having a diameter smaller than that of the main cutting blade at a position slightly apart from both blades, the rotary cutter was brought closer to the ceramic pipe and held by the support member. The preliminary cutting blade is first bited slightly ahead of the part of the ceramic pipe to be cut, and then the main cutting blade is bited into the part to be cut. A third aspect of the present invention is a method for cutting a ceramic pipe, which is characterized in that the ceramic pipe is held by a support member for holding the ceramic pipe, while the ceramic pipe is held parallel to the support member by a certain angle. A pre-cutting blade and a slightly smaller diameter main cutting blade are mounted in close proximity to a single drive shaft that has a blade, and at a position slightly apart from both blades, for finishing the cutting surface of a smaller diameter than the main cutting blade. While rotating the rotary cutter equipped with the tool, the rotary cutter is brought close to the ceramic pipe, and the preliminary cutting blade is first bited slightly ahead of the portion of the ceramic pipe held by the support member to be cut. The main cutting blade is cut into the area to be cut to perform main cutting, and then the cutting surface finishing tool is pressed against the cut portion to perform finishing processing. The method of cutting a ceramic pipe characterized in that
Is the invention of.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the illustrated embodiments. In the figure, 1 is a ceramic pipe that is a workpiece for producing a solid electrolyte tube of a sodium-sulfur battery, and 2 is a support member that holds the ceramic pipe.
In the embodiment shown in (1), a rotary type support rod that supports the ceramic pipe from the inner diameter side is supported so that the support rod can be arbitrarily moved in both horizontal and vertical directions. Also, 3
Is a rotary cutter axially parallel to the support member 2.

The rotary cutter 3 is provided with a pre-cutting blade 5, a main cutting blade 6, and a drive shaft 4 which is rotated by a motor 8.
The cutting surface finishing tools 7 are arranged in order, and the preliminary cutting blade 5 and the main cutting blade 6 are in a close position with a slight cutting margin, and the preliminary cutting blade 5 and the main cutting blade 6 are provided. The outer diameter of the cutting surface finishing tool 7 is configured such that the preliminary cutting blade 5 has the largest outer diameter, the main cutting blade 6 next, and then the cutting surface finishing tool 7.

In this embodiment, as the cutting surface finishing tool 7, two blades, an outer peripheral surface cutting blade 7a and an end chamfering blade 7b, are attached, but either one or other Of course, it is possible to arbitrarily combine tools and the like. Further, in FIG. 1, the inner diameter chuck type support rod is shown as the support member 2 of the ceramic pipe 1, but as shown in FIG. 2, the outer diameter chuck type support rod which supports from the outer diameter side of the ceramic pipe 1 is used. You can also

The clearance between the preliminary cutting blade 5 and the main cutting blade 6 is 0.5 to 2.
It is preferable to set it to about 0 times, and when such a gap is adjusted, a cutting margin that effectively prevents the occurrence of chipping during the main cutting is secured. On the other hand, it is preferable that the outer diameter difference between the preliminary cutting blade 5 and the main cutting blade 6 is 0.5 times or more the wall thickness of the ceramic pipe 1, and under such conditions, excellent dimensional accuracy and The main cutting will be efficiently performed. Further, the outer diameter difference between the main cutting blade 6 and the outer peripheral surface cutting blade 7a and the outer diameter difference between the outer peripheral surface cutting blade 7a and the end chamfering blade 7b are also 0. It is preferably set to 5 times or more.

[0010]

With the above-described structure, when the support member 2 is moved to bring the rotary cutter 3 closer to a predetermined position while applying a rotation speed of, for example, about 50 rpm to the ceramic pipe 1, the maximum outer diameter is first obtained. The pre-cutting blade 5 having an abutting contact with the outer peripheral surface of the ceramic pipe 1 performs the pre-cutting with an optimum cutting margin left, and then the main cutting blade 6 abuts at a predetermined cutting point. A disconnect is made. In this case, the preliminary cutting and the main cutting are performed at the same time without moving the center of the ceramic pipe 1, so that the center deviation does not occur and the cutting is performed with extremely high precision. Since an appropriate cutting allowance is secured between the main cutting blade 6 and the cutting blade 6, chipping and the like can be effectively prevented.

After that, the support member 2 is attached to the outer peripheral surface cutting blade 7a.
Axially moved to the outer peripheral surface cutting blade 7a to polish the outer peripheral surface of the ceramic pipe 1, and then the support rod 2 is axially moved to the end chamfering blade 7b to form the cutting end surface portion. The end is chamfered by the edge chamfering blade 7b, and the final finishing is completed. In this way, since the center of the ceramic pipe 1 is fixed in one place without being moved during the entire process from the start of cutting to the end of polishing,
Machining can be performed with extremely high accuracy without causing center misalignment, and since these machining processes are continuously performed by one device, work efficiency is significantly improved.

[0012]

As is clear from the above description, the present invention is capable of cutting a product with high dimensional accuracy by performing reliable centering, and particularly the first and second products. According to the invention, there is an advantage that the installation space can be reduced and the maintenance work can be easily performed. Therefore, the present invention, as a ceramic pipe cutting device and a ceramic pipe cutting method using the same which eliminates the conventional problems, greatly contributes to industrial development.

[0013]

[Brief description of drawings]

FIG. 1 is a cutaway front view showing an embodiment of the present invention.

FIG. 2 is a cutaway front view showing another embodiment.

[Explanation of symbols]

 1 Ceramic Pipe 2 Support Member 3 Rotating Cutter 4 Drive Shaft 5 Precutting Blade 6 Cutting Blade 7 Cutting Surface Finishing Tool

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[Procedure amendment]

[Submission date] May 16, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Ceramic pipe cutting apparatus and ceramic pipe cutting method using the same

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceramic pipe cutting apparatus capable of efficiently cutting a product having high dimensional accuracy with a single apparatus and a ceramic pipe cutting method using the same.

[0002]

BACKGROUND ART For example, sodium - ceramic pipe used as a solid electrolyte tube of sulfur batteries has been required a very high dimensional accuracy products from the assembly problems, or durability issues such as the battery, the present inventors In the cutting process of the ceramic pipe, the preliminary cutting was performed and then the main cutting was performed, and the cut surface was subjected to cutting and chamfering.

In this cutting method, however, the above-mentioned preliminary cutting, main cutting, cutting and chamfering are all performed separately by a single device, so that the working efficiency is extremely poor and the centering work is difficult. There was a problem that the dimensional accuracy of the product would not meet the quality standard.
In addition, there is a problem that a vast installation space for disposing the separate devices is required and the maintenance work for them is also increased. Furthermore, the cutting cost is long
If the Mic pipe is cut only by main cutting without pre-cutting
If there is a chipping or crack on the cut surface,
There is also the problem that it may not be possible to obtain the cut surface
there were.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, provides reliable centering, has high dimensional accuracy, and has a predetermined cut without chipping or cracks on the cut surface. Extremely efficient product with a surface
A ceramic pipe cutting device that can be cut with high yield, has a small installation space, and is easy to perform device maintenance work, and a ceramic pipe cutting method using the same. Is.

[0005]

SUMMARY OF THE INVENTION The present invention, which has been made to solve the above-mentioned problems, includes a support member for holding a ceramic pipe and an axis parallel to the support member or having a certain angle. A drive shaft comprising a pre-cutting blade and a rotary cutter having a main cutting blade slightly smaller in diameter than the pre-cutting blade, and at least one of the rotary cutter and the supporting member is capable of coming into contact with and separating from the other. A ceramic pipe cutting device according to the first aspect of the present invention includes a supporting member for holding the ceramic pipe, a pre-cutting blade on a drive shaft having an axis parallel to the supporting member or having a constant angle, and a pre-cutting blade. more as a rotary cutter mounted a tool finishing the cut surface subsequent to the main cutting blade is attached to the cutting blade of diameter slightly less of the rotary cutter and the support member A second aspect of the present invention is a ceramic pipe cutting device, characterized in that one side is movable toward and away from the other side and can be moved in the axial direction. The ceramic pipe is used as a supporting member for holding the ceramic pipe. while for holding, axially parallel or relative to the support member, the Rutotomoni main cutting blade attached to one of the cutting blade of the pre-cutting blade and slightly smaller diameter than that on the drive shaft with a predetermined angle Subsequently, while rotating the rotary cutter equipped with a cutting surface finishing tool having a diameter smaller than that of the main cutting blade, the rotary cutter is brought close to the ceramic pipe to try to cut the ceramic pipe held by the support member. A ceramic cutting tool characterized in that the preliminary cutting blade is first bited slightly ahead of the part and then the main cutting blade is bited into the part to be cut to perform the main cutting. A third aspect of the present invention is a method for cutting a pipe, in which a ceramic pipe is held by a support member that holds the ceramic pipe, and a single drive shaft having a certain angle parallel to the support member is used for preliminary cutting. while rotating the rotary cutter fitted with a tool for finishing small diameter cutting surface than the blade and which slightly smaller diameter of the cutting blade wherein the cutting blade Following Rutotomoni main cutting blade attached to the rotary cutter To the ceramic pipe, first bite the preliminary cutting blade slightly ahead of the portion of the ceramic pipe held by the support member to be cut, and then cut the main cutting blade into the portion to be cut. Main cutting is performed, and then the cutting surface finishing tool is pressed against the cut portion to perform a finishing process. It should be clear.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the illustrated embodiments. In the figure, 1 is a ceramic pipe that is a workpiece for producing a solid electrolyte tube of a sodium-sulfur battery, and 2 is a support member that holds the ceramic pipe.
In the embodiment shown in (1), a rotary type support rod that supports the ceramic pipe from the inner diameter side is supported so that the support rod can be arbitrarily moved in both horizontal and vertical directions. Also, 3
Is a rotary cutter axially parallel to the support member 2.

The rotary cutter 3 is provided with a pre-cutting blade 5, a main cutting blade 6, and a drive shaft 4 which is rotated by a motor 8.
The cutting surface finishing tools 7 are arranged in order, and the preliminary cutting blade 5 and the main cutting blade 6 are in a close position with a slight cutting margin, and the preliminary cutting blade 5 and the main cutting blade 6 are provided. The outer diameter of the cutting surface finishing tool 7 is configured such that the preliminary cutting blade 5 has the largest outer diameter, the main cutting blade 6 next, and then the cutting surface finishing tool 7.

In this embodiment, as the cutting surface finishing tool 7, two blades, an outer peripheral surface cutting blade 7a and an end chamfering blade 7b, are attached, but either one or other Of course, it is possible to arbitrarily combine tools and the like. Also, in the embodiment,
There is a slight gap between the outer peripheral surface cutting blade 7a and the end chamfering blade 7b.
Are separated from each other, but the blade and the
Blades, etc., in which case ceramic pie
The outer peripheral surface finishing and the end chamfering finishing can be done at the same time.
This is especially preferable. Further, in FIG. 1, a support rod of an inner diameter chuck type is shown as the support member 2 of the ceramic pipe 1, but as shown in FIG.
It is also possible to use an outer diameter chuck type supporting from the outer diameter side.

When a gap is provided between the preliminary cutting blade 5 and the main cutting blade 6 as in the embodiment, the gap is 0.5 to 2. It is preferable to set it to about 0 times, and when such a gap is adjusted, a cutting margin that effectively prevents the occurrence of chipping during the main cutting is secured. In addition, the above
The preliminary cutting blade 5 and the main cutting blade 6 are both integrated.
Being a tightly adhered item, or the above cutting
It may be integrated with the surface finishing tool 7.
Note that the relationship between the above blades is cut during preliminary cutting and main cutting.
Ceramic pipe 1 whose cross-section finishing tool 7 is the workpiece
Be careful not to come into contact with the support member 2, the rear device, etc.
A spare when finishing with the cutting surface finishing tool 7.
Cutting blade 5 and main cutting blade 6 support ceramic pipe 1 and
The diameter of each blade so that it does not contact the member 2 and the device behind
It goes without saying that the distance and the like are designed appropriately. On the other hand, it is preferable that the outer diameter difference between the preliminary cutting blade 5 and the main cutting blade 6 is 0.5 times or more the wall thickness of the ceramic pipe 1, and under such conditions, excellent dimensional accuracy and The main cutting will be efficiently performed. The outer diameter difference between the main cutting blade 6 and the outer peripheral surface cutting blade 7a is 1.5 times or more the wall thickness of the ceramic pipe 1, and the outer peripheral surface cutting blade 7a.
It is preferable that the difference in outer diameter between the edge chamfering blade 7b and the edge chamfering blade 7b is 0.5 times or more the wall thickness of the ceramic pipe 1. Also times
The rolling cutter 3 has a certain angle with respect to the support member 2.
To be installed, or in both horizontal and vertical directions
It can be provided so as to be movable.

[0010]

With the above-described structure, when the support member 2 is moved to bring the rotary cutter 3 closer to a predetermined position while applying a rotation speed of, for example, about 50 rpm to the ceramic pipe 1, the maximum outer diameter is first obtained. The pre-cutting blade 5 having an abutting contact with the outer peripheral surface of the ceramic pipe 1 performs the pre-cutting with an optimum cutting margin left, and then the main cutting blade 6 abuts at a predetermined cutting point. A disconnect is made. In this case, the preliminary cutting and the main cutting are performed at the same time without moving the center of the ceramic pipe 1, so that the center deviation does not occur and the cutting is performed with extremely high precision. Since an appropriate cutting allowance is secured between the main cutting blade 6 and the cutting blade 6, chipping and the like can be effectively prevented.

After that, the pre-cutting blade 5 is moved to the ceramic pattern.
The rotary cutter 3 was retracted to a position away from the Ip1
After that, the support member 2 is moved in the axial direction to the outer peripheral surface cutting blade 7a so that a predetermined position of the ceramic pipe 1 is cut surface finishing tool.
7 and the outer peripheral surface cutting blade 7a, the ceramic pipe 1
The outer peripheral surface of the is polished, and then the support rod 2 is chamfered at the end.
This is moved to the axial direction up to 7b, and the cut end face portion is polished by the end chamfering blade 7b to complete the final finishing. In this way, the center of the ceramic pipe 1 is fixed at one position without being moved during the entire process from the start of cutting to the end of polishing, so that extremely accurate machining can be performed without causing center deviation. In addition, since these processings are continuously performed by one device, the working efficiency is significantly improved.

[0012]

As is clear from the above description, the present invention is capable of cutting a product with high dimensional accuracy by performing reliable centering, and particularly the first and second products. According to the invention, there is an advantage that the installation space can be reduced and the maintenance work can be easily performed. Therefore, the present invention, as a ceramic pipe cutting device and a ceramic pipe cutting method using the same which eliminates the conventional problems, greatly contributes to industrial development.

[0013]

[Brief description of drawings]

1 is a cutaway flat view showing an embodiment of the present invention.

2 is a cutaway flat view showing another embodiment.

[Explanation of symbols] 1 ceramic pipe 2 support member 3 rotary cutter 4 drive shaft 5 preliminary cutting blade 6 cutting blade 7 cutting surface finishing tool

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

Claims (4)

[Claims] 1. A support member for holding a ceramic pipe, a pre-cutting blade and a main cutting blade having a diameter slightly smaller than the pre-cutting blade on one drive shaft that is parallel to the support member or has a certain angle with respect to the support member. And a rotary cutter attached in close proximity to each other, wherein at least one of the rotary cutter and the support member is movable toward and away from the other. 2. A support member for holding a ceramic pipe, a pre-cutting blade and a main cutting blade having a diameter slightly smaller than the pre-cutting blade on one drive shaft which is parallel to the support member or has a constant angle with respect to the support member. And a rotary cutter with a cutting surface finishing tool attached at a position slightly separated from both blades, and at least one of the rotary cutter and the supporting member is movable toward and away from the other and axially. A device for cutting a ceramic pipe, characterized in that it can be moved. 3. A ceramic pipe is held by a support member for holding the ceramic pipe, and a pre-cutting blade and a slightly smaller blade are provided on one drive shaft which is parallel to the support member or has a certain angle. While mounting a small diameter main cutting blade in close proximity and rotating a rotary cutter with a cutting surface finishing tool having a diameter smaller than the main cutting blade at a position slightly apart from both blades, the rotary cutter is attached to the ceramic pipe. When approaching, the preliminary cutting blade is first bited slightly ahead of the portion of the ceramic pipe held by the support member to be cut, and then the main cutting blade is bited into the portion to be cut to perform the main cutting. A method for cutting a ceramic pipe, which is characterized by being performed. 4. A ceramic pipe is held by a support member for holding the ceramic pipe, and a pre-cutting blade and a slightly smaller portion are provided on one drive shaft which is parallel to the support member or has a certain angle. While mounting a small diameter main cutting blade in close proximity and rotating a rotary cutter with a cutting surface finishing tool having a diameter smaller than the main cutting blade at a position slightly apart from both blades, the rotary cutter is attached to the ceramic pipe. When approaching, the preliminary cutting blade is first bited slightly ahead of the portion of the ceramic pipe held by the support member to be cut, and then the main cutting blade is bited into the portion to be cut to perform the main cutting. A method for cutting a ceramic pipe, which is performed, and subsequently, the cutting surface finishing tool is pressed against the cutting portion to perform a finishing process.