KR101675568B1 - Device for processing seat surface of triple eccentric butterfly valve - Google Patents

Abstract

The present invention provides a device for machining a seat surface of a triple eccentric butterfly valve which can quickly and accurately machine a seat surface of a body (A) and a disk (B) coming in contact with each other in a triple eccentric butterfly valve. The device for machining a seat surface of a triple eccentric butterfly valve comprises: a main body (2) installed to tilt and fix a body (A) and a disk (B) of a valve to be rotated; a vertical supporter (3) vertically installed on a rear of the main body (2); a horizontal supporter (4) installed to be vertically slid and transported on the vertical supporter (3); a tilting support (5) installed to be horizontally slid and transported on the horizontal supporter (4); a tilting drive body (6) rotatably installed on the tilting support (5) to be tilted by a tilting means (50); a variable tool installation part (7) inserted into a front of the tilting drive body (6) to be slid and transported on the tilting drive body (6) by a tool transport means (60); and a machining tool (8) installed to protrude from a lower end of the variable tool installation part (7). According to the present invention, the seat surface of the body (A) and the disk (B) of the valve can be machined using a single device, and a machining speed and machining precision can be increased to improve workability to reduce manufacturing costs and improve operational reliability of the valve.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a triple eccentric butterfly valve,

The present invention relates to an apparatus for processing a sheet surface of a triple eccentric butterfly valve. More specifically, the present invention relates to a sheet surface processing apparatus for a triple eccentric butterfly valve, surface of a triple eccentric butterfly valve can be quickly and accurately machined.

Generally, a butterfly valve controls a flow rate of a fluid passing through a valve by rotating a disk-shaped disk on the inside of a valve body. It is suitable for a very large size and can be installed in a narrow space. A double-eccentric type structure, and a triple-eccentric type structure. Among these, the triple eccentricity type as disclosed in Korean Patent Publication No. 37392 (published on May 21, 2002) As butterfly valves are complicated in shape and large in manufacturing time and manufacturing cost, the reliability and safety of heat and load must be ensured as they become larger. In order to do this, the inner and outer sides of the body, which are in contact with each other during operation of the triple eccentric butterfly valve, The processing of the sheet surface was above all important.

Conventional techniques for machining the body of the triple eccentric butterfly valve and the seat surface of the disk have been disclosed in Korean Patent No. 548912 (published Feb. 2, 2006) The cutting edge is linearly lowered from the upper part of the rotary member while rotating the sheet fixed to the jaw by rotating the rotary member provided with the jaws, There has been a method of manufacturing a valve seat of a butterfly valve for machining an inclined surface on a side surface. However, in this conventional technique, a body or a disk fixed on a tilted jig is rotated and the bite is moved from the upper part to the lower part or from the lower part to the upper part, Because of the machining characteristics of the above-mentioned bite, a large amount of up-and-down movement time for machining the sheet surface is required And the machining accuracy is deteriorated due to the poor surface roughness of the seat surface. Due to the discrepancy between the seat surface formed on the body of the valve and the seat surface formed on the disk, And the airtightness of the seat surface is greatly lowered.

KR 10-2002-0037392 A May 21, 2002. KR 10-0548912 B1 2006. 2. 2.

The present invention has been devised to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a machining apparatus for machining a seat surface formed to be inclined eccentrically to a body and a disk of a triple eccentric butterfly valve It is possible to process the seat surface of the body and the seat surface of the disk in one apparatus and to process the seat surface more rapidly during the processing of the body of the triple eccentric butterfly valve and the seat surface of the disk, It is an object of the present invention to provide a seat surface machining apparatus for a triple eccentric butterfly valve capable of greatly improving the accuracy.

Although not described separately, other objects within the scope of the present invention are also included in the overall task of the present invention in consideration of the specific contents and claims of the present invention.

In order to achieve the above object, the present invention provides a seat surface machining apparatus for a triple eccentric butterfly valve, wherein the seat surface machining apparatus for a triple eccentric butterfly valve of the present invention comprises: A vertical supporter installed vertically in the rear of the main body, and a horizontal supporter installed vertically in the vertical supporter so as to be slidably moved up and down. And a tilting driving body which is installed on the horizontal supporter so as to be slidably moved to the left and right by horizontal transportation means and which is installed to be rotated forward of the tilting support and is tilted by the tilting means, So that the tool is transported A variable tool mounting base provided so as to be slidably moved from the tilting drive body to the both ends by means of a tilting drive body is provided so as to protrude from the lower end of the variable tool mounting base, So that the body of the valve and the seat surface of the disk can be machined more quickly, easily and precisely.

According to a specific means for solving the above-mentioned problems, the sheet surface machining apparatus for a triple eccentric butterfly valve of the present invention drives a cutting tool which is slid vertically and horizontally by vertical transfer means and horizontal transfer means, It is possible to easily process the inside of the body of the valve fixed to the jig and the seat surface outside the disk of the valve by adjusting the inclination of the cutting tool so that the body of the valve and the seat surface of the disk are made into one device It has a processing effect.

In addition, since the body and the seat surface of the disk are processed by rotating the cutting tool, the speed of processing of the sheet surface is higher than that of the conventional method of rotating the body along with the sheet surface by using the conventional bite, The time can be greatly reduced and the entire surface of the sheet can be grinded and polished right at an angle determined by the cutting tool itself to smooth the surface of the sheet to improve the surface roughness, So that the machining precision can be remarkably increased.

According to the present invention, it is possible to rapidly and easily process the seat surface of the body and the disk of the triple eccentric butterfly valve, thereby remarkably reducing the manufacturing cost and remarkably reducing the manufacturing cost. Since the airtightness of the seat surface is improved and the reliability of operation can be remarkably improved, a high quality valve can be mass-produced and provided.

FIG. 1 is a perspective view of a preferred embodiment of the present invention,
Fig. 2 is a perspective view of a stereoscopic view showing a preferred embodiment of the present invention
Figure 3 is a top view and partial cross-sectional view of the present invention
Figure 4 is a side view and partial cross-
5 is a front view and partial cross-sectional view of the present invention
Fig. 6 is an exemplary view showing the sheet surface processing of the valve body according to the present invention
Fig. 7 is an exemplary view showing the sheet surface processing of the valve disk according to the present invention. Fig.

The present invention can quickly and precisely process the seat surfaces of the body (A) and the disk (B) in a triple eccentric butterfly valve of the most developed structure to reduce the operating torque among various butterfly valves FIG. 1 is a perspective view of a triple eccentric butterfly valve according to an embodiment of the present invention. FIG. 2 is a perspective view of a triple eccentric butterfly valve according to an embodiment of the present invention. And the terms used are also intended to be illustrative only and should not be construed as being limited to the terminology.

In the seat surface machining apparatus 1 of the triple eccentric butterfly valve of the present invention described above, the seat surface formed on the inside of the valve body A and the outside of the valve B, respectively, The angle of inclination of the seat surface is different from the angle of inclination of the seat surface, so that the inclined paper 20 for inclining the body A and the disk B of the valve body is formed on the main body (2).

In order to process both the body A of the valve and the seat surface of the disk B in this main body 2, the tool is vertically fed vertically and horizontally, horizontally and horizontally, tilted to give a tilt of the tool, And has a slide tool transfer function for fine adjustment, and has a function of rotating the tool of the sheet surface processing tool and an automatic tool replacement function.

In order to have the above-mentioned functions, the present invention includes a vertical conveying function in the rear of the main body 2 provided with the inclined paper 20 as shown in FIGS. 1 and 2, A horizontal supporter 4 installed vertically so as to be vertically slidably conveyed by the vertical conveying means 30 to the vertical supporter 3 installed to the horizontal supporter 4, 40 are slidably supported by the tilting support 5.

The tilting support 5 is slidably supported by the horizontal supporter 4 so that the tilting drive body 6 is rotated forward and tilted by the tilting means 50 for a tilting rotation function A processing tool 8, which is a tool capable of machining both the valve body A and the seat surface of the disk B, is mounted and finely adjusted in the direction of entry of the tool. A variable tool mounting base 7 provided so as to protrude from the tilting drive body 6 in such a manner as to be replaceable at the lower end of the tilting drive body 6 is provided in front of the tilting drive body 6, 7, respectively.

The machining apparatus 1 of the present invention based on the above-described configuration is configured such that the machining tool 8, which is a tool for cutting a sheet surface, is made of an end mill (one end mill) which is one of the rotary cutters of a milling machine A milling cutter can be used in addition to the end mill. Unlike the bite of a lathe or the like used in the sheet processing of the conventional butterfly valve, the milling cutter has to rotate the tool itself, 8, the tool rotating means 70 is further provided.

In addition, in the present invention, a grinder for polishing the sheet surface after the sheet surface processing and various measuring tools for measuring the degree of sheet surface processing after polishing are automatically It is possible to provide a tool replacement means 80 for replacing the tool.

Each of the means for driving the above-described present invention will be described in more detail.

2 and 3, the vertical conveying means 30 is provided with a vertical guide rail 31 protruding from the front left and right of the vertical supporter 3 and extending in the longitudinal direction of the vertical supporter 3, A vertical lead screw 32 is provided between the left and right vertical guide rails 31 of the vertical supporter 3 and freely rotates in the longitudinal direction of the vertical supporter 3 to rotate the vertical lead screw 32 forcibly A vertical drive motor 33 is connected to the vertical supporter 4 and is screwed to the vertical lead screw 32 at the rear of the horizontal supporter 4 and connected to the vertical lead screw 32, And a vertical transferring bracket 34 installed to move up and down with a predetermined distance therebetween.

2 and 4, the horizontal conveying unit 40 includes a horizontal guide rail 41 protruding forward and backward from the horizontal supporter 4 and extending in the longitudinal direction of the horizontal supporter 4, A horizontal lead screw 42 is provided between the upper and lower horizontal guide rails 41 of the horizontal supporter 4 and freely rotates in the longitudinal direction of the horizontal supporter 4 to rotate the horizontal lead screw 42 forcibly The horizontal lead screw 42 is screwed to the rear lead screw 42 at the rear of the tilting pedestal 5 and connected to the horizontal lead screw 42 by the horizontal drive motor 43, And a horizontally moving bracket 44 installed to move left and right while riding on the floor 42.

2 and 5, the tilting means 50 includes a tilting drive motor 51 installed on one side of the tilting support 5, a tilting support 5 mounted on the tilting drive motor 51 in cooperation with the tilting drive motor 51, And a worm wheel 53 fixedly installed in the rear of the tilting drive body 6 so as to be engaged with the worm 52 in the tilting support 5, The encoder 54 fixed to the tilting support 5 or the tilting drive 6 to detect the rotation of the worm wheel 53 or the tilting drive 6 in units of 1/1000 rotation .

The tool transferring means 60 includes a tool transfer motor 61 protruded to one side from the upper end of the variable tool mounting base 7 and installed downward and a tool transferring lead screw And the tool feed lead screw 62 is screwed to the tilting drive body 6 so that the variable tool mounting table 7 is lowered from the tilting drive body 6 by driving of the tool feed motor 61 And a screw inflow hole 63 formed therein for screwing the tool feed lead screw 62 into and screwed into the inside.

1 to 4, the tool rotating means 70 includes a rotation driving motor 71 installed on the upper portion of the variable tool mounting base 7, And a rotation drive motor 71 for rotating the processing tool 8 by driving the rotation drive motor 71. The rotation drive motor 71 is rotatably connected to the rotation driving motor 71, And the interlocking means 73 interlocked with the connecting body 72. The interlocking means 73 may be a belt, a belt pulley, a timing belt, a timing belt pulley, or a gear engaged with a gear.

The tool replacing means 80 includes a replacement cylinder 81 installed at the upper end of the variable tool mounting base 7 and an operating rod 72 slidably inserted into the center hole 74 formed in the center of the rotation connecting body 72 A compression spring 84 which is fixed to the upper end of the operation rod 82 so as to be pressed downward by the piston rod 83 of the replacement cylinder 81 and is elastically supported by the rotary joint 72 at the lower portion, And a processing tool 8 connected to the operation rod 82 inside the lower portion of the rotary link 72 so that the processing tool 8 is driven and compressed by the driving and compression spring 81 of the replacement cylinder 81, And a tool clamp 86 configured to automatically engage and disengage the machining tool 8 by the lifting and lowering action of the operating rod 82 due to the elasticity of the tool 84.

The present invention constructed as described above is a dedicated machine for machining the seat surface of the body (A) and the disk (B) of the triple eccentric butterfly valve, and its operation will be described more specifically below.

When the seat surface inside the body A of the triple eccentric butterfly valve is to be machined as shown in Fig. 6, the tool replacing means 80 attaches the machining tool 8 to the tool clamp 86, The inclination of the processing tool 8 is measured by the encoder 54 by tilting the tilting drive body 6 at the tilting support 5 with the tilting means 50 so as to match the inclination angle of the sheet surface After the processing tool 8 is brought into contact with the sheet surface machining portion of the body A by the vertical conveying means 30 and the horizontal conveying means 40, 8 is rotated at a high speed in the variable tool mounting table 7 and the rotating tool 8 is tilted at this time so that the inclined guide 20 of the main body 2 is inclined The seat surface is quickly and easily machined on the inner periphery of the body A of the fixed valve, and the machining accuracy of the seat surface is remarkably improved It will be.

7, when the seat surface outside the disk B of the triple eccentric butterfly valve is machined, the tool changing means 80, similarly to the case of machining the body A seat surface of the valve, The tilting drive body 6 is tilted at the tilting support 5 by the tilting means 50 so as to match the inclination angle of the seat surface of the body A after the tool 8 is coupled to the tool clamp 86, The processing tool 8 is moved by the vertical conveying means 30 and the horizontal conveying means 40 to the sheet surface machining area of the disc B, The rotating tool 72 on which the processing tool 8 is mounted is rotated by the tool rotating means 70 at a high speed at the variable tool mounting table 7 and at this time the turning tool 8 is tilted So that the seat surface is swiftly moved around the outer periphery of the disk B of the valve, which is slantingly fixed to the sloping paper 20 of the body 2, Is machined and easily, will be processed by the sheet surface by subsequent grinding also improves the processing accuracy of the sheet surface significantly.

The vertical transfer means 30, the horizontal transfer means 40, and the tilting means (not shown) are used when the sheet surface of the body A of the triple eccentric butterfly valve and the sheet surface of the disc B are processed by the above- (A) of the valve to be machined and the inclination angle of the seat surface of the disk B, regardless of which of the tool transfer means 60, the tool transfer means 60, the tool rotation means 70, The machining apparatus 1 of the present invention can process both the valve body A and the valve disc B by a single device, Effect.

After the seat surface of the valve is processed by the processing tool 8 as described above, the variable tool mounting table 7 is moved outward by the vertical transfer means 30 and the horizontal transfer means 40, ) Can automatically grind the sheet surface after the grinder is automatically mounted in place of the processing tool (8), and then the grinder is automatically replaced with a machining surface measuring tool to measure the machining accuracy of the sheet surface for further machining or polishing And thus high machining accuracy can be clearly ensured. By using these machining facilities, not only the machining can be accelerated, but also the precision of machining can be increased and accurate dimension measurement can be performed while the product is mounted, Of course, it is possible to mass-produce stable high-quality products.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that the scope of the claims is not limited to the examples but covers the scope of the claims and the scope of equivalents thereof.

A: body, B: disk
1: Processing device
2: main body, 20: inclined surface
3: Vertical supporter 30: Vertical conveying means 31: Vertical guide rail 32: Vertical lead screw 33: Vertical drive motor 34: Vertical conveying bracket
4: Horizontal supporter, 40: Horizontal conveying means, 41: Horizontal guide rail, 42: Horizontal lead screw, 43: Horizontal drive motor, 44:
5: a tilting support, 50: a tilting means, 51: a tilting drive motor, 52: a worm, 53: a worm wheel, 54:
6: tilting driving body, 60: tool feeding means, 61: tool feeding motor, 62: tool feeding lead screw, 63: screw inlet hole, 64:
7: Variable tool mounting stand, 70: Tool rotating means, 71: Rotary drive motor, 72: Rotating connector, 73: Interlocking means, 74:
The present invention relates to a tool clamping method and a tool clamping method for a tool clamp,

Claims (6)

A main body 2 on which an inclined paper 20 for slantly fixing the body A of the valve and the disk B is rotatably mounted on the body;
A vertical supporter (3) installed vertically upright behind the main body (2);
A horizontal supporter 4 installed vertically in the vertical supporter 3 so as to be slid up and down by the vertical conveying means 30;
A tilting support 5 installed horizontally in the horizontal supporter 4 so as to be slidably moved by the horizontal conveying means 40;
A tilting drive body (6) rotatably installed in front of a tilting support (5) and configured to be tilted by a tilting means (50);
A variable tool mounting base 7 configured to be inserted in front of the tilting drive body 6 and slidably moved to both ends of the tilting drive body 6 by the tool transfer means 60;
A processing tool 8 protruding from the lower end of the variable tool mounting table 7 and configured to process the seat surface of the valve body A and the disk B;
Wherein the first and second eccentric butterfly valves are formed in a substantially flat shape.
The method of claim 1,
The vertical conveying means 30 includes a vertical guide rail 31 protruding in the front left and right of the vertical supporter 3 and elongated in the longitudinal direction of the vertical supporter 3 and a vertical supporter 3 A vertical drive motor 33 connected for forced rotation of the vertical lead screw 32 and a vertical lead screw 32 provided at the rear of the horizontal supporter 4. The vertical lead screw 32 is provided to be freely rotated in the longitudinal direction of the horizontal supporter 4, And a vertical transferring bracket (34) screwed to the vertical lead screw (32) by vertical driving motor (33) so as to move up and down on the vertical lead screw (32) when the vertical lead screw (32) rotates;
The horizontal conveying means 40 includes a horizontal guide rail 41 protruded in the upper and lower portions of the horizontal supporter 4 in the longitudinal direction of the horizontal supporter 4 and a horizontal supporter 4 between the upper and lower horizontal guide rails 41 A horizontal drive motor 43 connected for forced rotation of the horizontal lead screw 42 and a horizontal lead screw 42 connected to the rear of the tilting support 5 to rotate the horizontal lead screw 42. [ And a horizontal conveyance bracket 44 screwed to the horizontal lead screw 42 by the horizontal drive motor 43 to move horizontally on the horizontal lead screw 42 when the horizontal lead screw 42 rotates;
Wherein the seat surface of the triple eccentric butterfly valve is machined.
The method of claim 1,
The tilting means 50 includes a tilting drive motor 51 installed at one side of the tilting support 5 and a worm 52 connected to the tilting drive motor 51 and configured to rotate in the tilting support 5 , And a worm wheel (53) fixedly installed so as to protrude rearward of the tilting drive body (6) and meshed with the worm (52) in a tilting support base (5);
Wherein the seat surface of the triple eccentric butterfly valve is machined.
The method of claim 1,
The tool feeding means 60 includes a tool feeding motor 61 protruded to one side from the upper end of the variable tool mounting base 7 and downwardly mounted on the upper side of the variable feeding tool mounting base 7 and a tool feeding lead screw 62 And the tool feed lead screw 62 is screwed to the tilting drive body 6 so that the variable tool mounting table 7 is lowered from the tilting drive body 6 by driving of the tool feed motor 61, And a screw inlet hole (63) through which a screw (62) is introduced to the inside;
Wherein the seat surface of the triple eccentric butterfly valve is machined.
The method of claim 1,
A rotation drive motor 71 installed on the upper side of the variable tool mounting table 7 and a rotary connection body 72 mounted on the inside of the variable tool mounting table 7 so as to be freely rotated by bearings, And an interlocking means 73 interlocked with the rotary drive motor 71 and the rotary link 72 such that the tool 8 is rotationally driven by the drive of the rotary drive motor 71. [ (70);
Wherein the first and second eccentric butterfly valves are disposed in the first and second directions.
The method of claim 5, further comprising:
A replacement cylinder 81 installed at the upper end of the variable tool mounting base 7, an operation rod 82 slidably inserted into a center hole 74 formed in the center of the rotary connection body 72, And the piston rod 83 of the replacement cylinder 81 is urged downward by the compression spring 84 mounted in the lower portion at the lower end to be elastically supported on the rotary connector 72. [ And a processing tool 8 which is connected to the operation rod 82 inside the lower portion of the rotary link 72 so that the operation rod 82 is driven by the elasticity of the compression spring 84 and the driving of the replacement cylinder 81, (80) composed of a tool clamp (86) configured to automatically replace and engage the processing tool (8) by lifting and lowering of the tool clamp (86);
Wherein the first and second eccentric butterfly valves are disposed in the first and second directions.

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