KR102252125B1 - Calibration device for roundness of Pipe - Google Patents

Abstract

The present invention relates to a correction device for the roundness of a pipe, which, unlike the conventional device which simultaneously pressurizes the inner radius and the outer radius to correct roundness, is divided into an inner radius pressurizing unit and an outer radius pressurizing unit to provide a function in order to be selectively operated, thereby overcoming the limitations of the roundness correction and manufacturing a product of an excellent quality. To this end, the present invention comprises: a supply unit (100) which is composed of a frame (110) and a rotary plate (120), wherein the rotary plate comprises a plurality of jigs (g) which can be replaced depending on a workpiece; a robot (200) which is installed at the location adjacent to the supply unit to grip the workpiece mounted on the jig to transport the same in one direction; and a correction unit (300) which simultaneously pressurizes the outer radius and the inner radius of the pipe received from the robot to correct the roundness of the pipe, while simultaneously decreasing or increasing the diameter of the pipe when necessary.

Description

Pipe roundness correction device {Calibration device for roundness of Pipe}

The present invention is a technical idea related to a roundness correction device that corrects roundness so that all diameters or radii along a circumference such as a pipe can be kept constant, and more specifically, the roundness is corrected by simultaneously pressing the inner and outer diameters. Unlike the existing devices, it relates to a pipe roundness correction device capable of producing a product of excellent quality by overcoming the limitations of roundness calibration by providing a function to enable selective operation by dividing into an inner diameter pressure unit and an outer diameter pressure unit.

Typically, pipes are standard products produced by extending the lengthwise circumference while maintaining the circumference of a certain standard, and these pipes are classified into seamless pipes and joined pipes depending on the presence or absence of a welded part.

The seamless pipe is mainly made of steel slab or steel ingot, and the steel slab or steel ingot is processed with a perforator to produce a thick pipe-shaped molded product, and the molded product is stretched or rolled several times to gradually decrease the thickness of the pipe, thereby finally joining Complete the missing pipe.

The bonded pipe is mainly made of a steel plate, is formed into a circular shape using various molding methods, and then welded or welded to the butt portion, and is classified into a welded pipe and a single welded pipe according to the joining method. On the other hand, since the welded pipe is deformed due to welding heat or the weld bead remains, post-processing such as roundness correction is required depending on where the pipe is used.

As described above, it is ideal that the pipe has a circular cross section, but it is very difficult to manufacture a pipe that is completely circular, and even if the pipe is manufactured to have a circular shape, it may be caused by external factors in the process of storage or transportation of the pipe. Deformation may occur. In addition, the manufactured pipe may be cut to a predetermined length according to the needs of the user before use, or additional treatments such as chamfering and surface treatment may be applied, and a change in the cross section of the pipe may occur even in such a treatment process.

Therefore, it is necessary to correct the cross section of the pipe to a true circle according to the use of the pipe.

As described above, two methods for correcting the cross section of a pipe to a true circle have been proposed, using a manual operation and a straightening device. For example, manual work requires excessive calibration time for the precision of the true circle, and this causes bottlenecks in the production line, which significantly reduces productivity, and because individual point calibration methods are used for each area requiring calibration, it was not possible to produce sophisticated products. . In addition, there is a limitation in selecting a method for correcting the roundness of the existing calibration device, as only a device capable of calibrating only one area of the inner diameter or the outer diameter or processing the inner diameter and the outer diameter at the same time is provided structurally.

These problems are continuously raised, and in recent years, a roundness correction device has been developed, and as an example, Patent Publication No. 10-1741720 "Pipe Roundness Correction Device" has been published. The technology is a powder assembly that is formed in the center to guide hydraulic pressure; and a tool assembly that is provided on one side of the body assembly and corrects one end of the pipe; and is provided spaced apart from one side of the body assembly and flows to one side by hydraulic pressure. A rear frame; and, a guide provided between the rear frame and the tool assembly and connecting the rear frame and the tool assembly; and a hydraulic supply means provided on one side of the body assembly and supplying hydraulic pressure to the inside of the body assembly; It consists of including.

In the above technology, the tool assembly is proposed to simultaneously pressurize the inner and outer surfaces of the pipe by the force of hydraulic pressure, and this technical feature increases the power of the straightener and provides the effect of rapid precision correction of the roundness by the expansion principle. do.

However, the above-described prior art is not only limited to the calibration area where only part of the end of the pipe is calibrated, but also has an inefficient structure that requires a separate hydraulic supply means to be applied to the actual site, such as expensive equipment costs are required. There was a bunch on.

Nevertheless, a pipe manufacturing company or a pipe processing company has not been presented with a solution to this problem, so the pipe is produced while enduring the above problems.

Korean Patent Registration No. 10-1213578 Korean Patent Registration No. 10-1741720 Korean Patent Registration No. 10-1917426

The present invention was created in order to more actively solve the above problems, deviating from the existing technical idea in which only one of the inner diameter or outer diameter can be corrected or the inner diameter and the outer diameter can be simultaneously processed, and the inner diameter pressing unit and By providing a function to enable selective driving by dividing it into an outer diameter pressurizing unit, it is possible to precisely calibrate various shapes of workpieces by overcoming the limitations of roundness calibration, and from this, it provides a roundness calibration device that can produce high quality products. This is the main challenge.

In addition, the present invention actively improves the existing structure, which was difficult to use as well as manufacturing facilities due to the complex structure of the hydraulic drive method, so that installation is simple, convenient to use, and excellent durability, so no separate repair is required, so it is economical. Another challenge is to provide a roundness correction device that can reduce the human burden.

The configuration of the pipe roundness correction apparatus proposed by the present invention in order to achieve the above-described problem is as follows.

The present invention is arranged in a concentric circle with each other, and the diameter is expanded by pressing by the lifting of the reference shaft 321, the first pressing portion 322 in close contact with the inner diameter of the workpiece, and the pressure by the lifting of the cover body 324 As a roundness correction device of a pipe that corrects the roundness of the cross section of the workpiece through the processing unit 320 consisting of a second pressing unit 323 that is in close contact with the outer diameter of the workpiece by tightening the diameter, in particular, it is made of a rectangular parallelepiped and the processing unit 320 at the top. The body 310 on which) is mounted; And, it is combined with the reference shaft 321 in a state built into the body, and a combination of the motor and the TM screw induces the elevation of the reference shaft to expand the diameter of the first pressing part 322 The first operation unit 330; And, in a state built into the body, coupled with the cover body 324, and a combination of the motor and the TM screw to induce the lowering of the cover body to reduce the diameter of the second pressing portion 322 A second operation unit 340; and the first operation unit 330 and the second operation unit 340 are characterized in that they simultaneously or selectively calibrate the inner diameter and the outer diameter of the workpiece according to operation control.

In addition, the first operation unit 330 is a first motor 331 that is installed so that the axis faces vertically from the bottom surface of the body 310; And, vertically extended by the coupling 331a on the axis of the first motor A first shaft 332 that is installed and has a thread formed on the outer periphery; And, it is installed through the first shaft and is coupled to the reference shaft 321 at the end, and when the first shaft rotates, it rises and descends with the reference shaft along the thread. It characterized in that it consists of; a first block 333.

In addition, the second operation unit 340 is a second motor 341 that is installed so that the axis faces vertically from the bottom surface of the body 310 within a range in which the first motor does not interfere; And, from the axis of the first motor A second shaft 342 installed vertically extending and having a thread on the outer periphery; And, it is installed through the second shaft and is coupled to the cover body 324 at the end, and when the second shaft rotates, it is accompanied by the cover body along the screw thread. The descent is characterized in that it consists of a second block (343).

In addition, the second operation unit 340 is coupled to the right edge of the cover body 324 by mutually coupling the second motor 341, the second shaft 342, and the second block 343, and the cover The sieve 324 has a third shaft 344 and a third block 345 installed at the left edge, and the second and third shafts are connected to each other by a pulley and a belt, so that the second motor 341 ), the second block and the third block are simultaneously lifted and lowered.

In addition, the calibration unit 300 further includes a sensor member 350 installed on both sides of the body 310 outside the installation range of the processing unit 320 to emit sensing light across the processing unit 320 By doing so, it is characterized in that the processing is automated by determining whether or not the workpiece is set on the processing unit.

In addition, the calibration unit 300 is disposed at a specified position and installed on the frame 200 for safe protection from external factors, and the frame 200 is made of a rectangular parallelepiped, and the inner space is upper and lower by the main plate. A frame body 210 divided into; And, a main plate 220 in which the calibration unit is installed and the installed calibration unit is disposed under the frame body; And, a rail member installed horizontally across the upper portion of the frame body ( 230); And, consisting of a robot arm 241 that is horizontally movable on the rail member and a robot finger 242 provided at the end of the robot arm to hold the workpiece, and transfers the supplied workpiece to the calibration unit or transfers the processed workpiece. It characterized in that it consists of; a robot 240 that is discharged from the calibration unit.

In addition, the calibration unit 300 is characterized in that the calibration range of the workpiece is set according to the pressing force of the robot 240.

According to the present invention consisting of the above-described configuration, unlike the existing calibration apparatus in which only one of the inner diameter or outer diameter can be corrected or the inner diameter and the outer diameter can be simultaneously processed, the reference shaft, the first and second pressing parts, and the cover As the processing unit made of sieve operates separately by the first and second motors, the inner diameter and the outer diameter of the pipe are simultaneously or selectively pressurized to perform a roundness correction, overcoming the limitations of roundness correction, and can precisely correct various shapes of workpieces. , There is an effect that can produce products of excellent quality from this.

In addition, the present invention is a hydraulic drive method, unlike the conventional structure that was difficult to use as well as manufacturing facilities due to the complex structure, the first motor and the first motor to correct the inner diameter of the pipe by the expansion of the first pressing unit by raising and lowering the reference axis. It consists of a simple structure of the second motor and the second shaft, which corrects the outer diameter of the pipe by tightening the second pressing part by raising and lowering the shaft and the cover body. As it is not required, there is another effect that can actively reduce the economic burden.

1 is a perspective view of a calibration unit configured according to a preferred embodiment of the present invention.
2 is an exploded perspective view showing the configuration of a processing unit.
Figure 3 is a cross-sectional view of Figure 1;
Figures 4 to 9 is a use state diagram sequentially showing a process of calibrating the roundness of the pipe using a calibration unit.
10 is a front view of a pipe roundness correction apparatus configured according to a preferred embodiment of the present invention.
11 is a front view showing the coupling structure of the frame and the calibration unit.

Hereinafter, with reference to the accompanying drawings, the configuration of the present invention and the actions and effects thereof will be described collectively.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to embodiments described later in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, and only this embodiment is intended to complete the disclosure of the present invention, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims. In addition, the same reference numerals refer to the same elements throughout the entire specification.

The present invention develops a technical idea related to a roundness correction apparatus that corrects roundness so that a circle with a constant diameter or radius along the circumference such as a pipe can be maintained.

Above all, the present invention provides a function to enable selective operation by dividing into an inner diameter pressurizing unit and an outer diameter pressurizing unit, unlike conventional devices that simultaneously pressurize the inner and outer diameters to correct the roundness, thereby overcoming the limitations of the roundness correction. It should be noted that the pipe roundness correction device that can produce the product of

1 is a perspective view of a calibration unit configured according to a preferred embodiment of the present invention, Figure 2 is an exploded perspective view showing the coupling relationship of the processing unit, Figure 3 is a cross-sectional view of the calibration unit.

Prior to the description of the invention, the calibration unit 300 proposed by the present invention is based on a calibration device that simultaneously calibrates the inner diameter and the outer diameter of the cross-section of a work piece, and the existing calibration device is a body for mounting, fixing, and processing the work piece. (310); and, the processing unit 320; refers to that consisting of.

Here, the processing unit 320 is a means for calibrating the inner diameter of the workpiece, as a means for calibrating the configuration of the reference shaft 321 and the first pressing unit 322 and the outer diameter of the workpiece. It consists of a configuration of a pressing portion 323 and a cover body 324.

In the processing unit 320 as described above, the reference axis 321, the first pressing unit 322, the second pressing unit 323, and the cover body 324 are sequentially formed in the same concentric circle in the center of the upper surface of the body 310. It is installed as, and the first pressing unit and the second pressing unit are arranged to be spaced apart from each other by a predetermined distance to induce entry, seating, and fixation of the workpiece.

The body 310 is a rectangular parallelepiped made of a plurality of plates, the upper plate 311 on which the processing unit 320 is installed, the lower plate 312 on which the first and second operation units 330 and 340 are installed, and the upper plate. It consists of two side plates 313 interconnecting the upper plate and the lower plate while the lower plate is spaced apart by a set interval.

The body 310 is configured for the purpose of providing a space so that the processing unit 320 and the first and second operation units 330 and 340 can be arranged and installed as described above.

4 to 9 are use state diagrams sequentially showing a process of calibrating the roundness of a pipe using a calibration unit.

As shown in Figs. 1 to 9, the processing unit 320 includes a reference shaft 321 that is raised or lowered by the first operation unit 330, and a first pressing unit 322 whose diameter is expanded by the reference axis. ), and a second pressurization unit 323 that is disposed at a predetermined distance from the first pressurization unit and is tightened by the cover body, and a cover body that presses the second pressurization unit while raising or lowering by the second operation unit 340 ( 324) are sequentially arranged in a concentric circle, and the cross-section of the workpiece enters the spaced space between the first pressing unit and the second pressing unit, and the first pressing unit and the second pressing unit are moved up and down by the reference axis and the cover body. During expansion or tightening, the inner and outer diameters of the workpiece are simultaneously or selectively corrected.

The reference shaft 321 is connected to the first operation unit 330 to move up or down, and in particular, the outer circumferential surface of the reference shaft includes an inclined surface formed in a predetermined direction. Preferably, the inclined surface has a shape gradually narrowing in diameter from the top surface of the reference shaft 321 to the bottom surface, and the reference shaft having the inclined surface of this shape is lowered by the first operation unit 330 and the first pressing unit 322 ) Is gradually pressed to expand the diameter of the first pressing unit. It is natural that the diameter expansion range of the first pressing unit 322 gradually expands as the descending distance of the reference shaft 321 increases by the first operation unit 330.

The first pressing unit 322 is arranged to embrace the reference axis on the same concentric circle as the reference axis 321, and is cut in a plurality of vertical directions at regular intervals along the circumference to give elasticity, thereby expanding the diameter according to whether the reference axis is raised or lowered. Or is restored to its original state. In particular, the first pressing unit 322 is made of an inclined surface having an inner diameter corresponding to the outer diameter of the reference shaft 321 so that the diameter increases or decreases according to the lifting movement of the reference shaft more smoothly.

The second pressing unit 322 is disposed while embracing the first pressing unit 322 on the same concentric circle as the reference shaft 321, and like the first pressing unit, a plurality of incisions are made in a vertical direction at regular intervals along the circumference so that the elasticity is increased. By being provided, the diameter is reduced or returned to its original shape depending on whether the cover body 324 is lowered. The second pressing portion 322 also has an inclined surface in a predetermined direction on the outer circumferential surface thereof, and preferably has a shape of a cone whose diameter is gradually narrower from the lower side to the upper side. When the cover body 324 is lowered by the second operation unit 340 while maintaining the original diameter of the second pressing unit 323 having the inclined surface as described above, the inner diameter of the cover body is changed to the outer diameter of the second pressing unit. The tightening is performed while gradually pressing the pressure, and accordingly, the diameter of the second pressing unit is gradually reduced, and the setting for correcting the roundness is completed in close contact with the outer diameter of the workpiece. In addition, it is natural that the second pressing unit 323 also increases the tightening force of the second pressing unit 323 as the descending distance of the cover body 324 is increased by the second operation unit 340.

The cover body 324 is arranged to embrace the second pressing unit 323 on the same concentric circle as the reference shaft 321, and both sides of the cover body are combined with the first and second operation units 330 and 340 to be described later. It is configured in a shape in which the protrusion extends in the lateral direction to receive the lifting or lowering power. In particular, the cover body 324 is an inclined surface having an inner diameter corresponding to the outer diameter of the second pressing unit 323, and the cover body 324 is a second pressing unit ( 323) by pressing the outer diameter to reduce the diameter.

As described above, the calibration unit 300 of the present invention comprises a rectangular parallelepiped body 310 on which the processing unit 320 is seated at the upper end; and a processing unit 320 installed on the upper end of the body to fix the processed object; And , A first operation unit 330 that is embedded in the body and is coupled to the reference shaft 321 and induces the elevation of the reference shaft by a combination of a motor and a TM screw to expand the diameter of the first pressing unit 322; And, Consists of; a second operation unit 340 that is embedded in the body and is coupled with the cover body 324 and induces the lowering of the cover body by a combination of a motor and a TM screw to reduce the diameter of the second pressing part 322; In this configuration, the first operation unit 330 and the second operation unit 340 are characterized in that they simultaneously or selectively calibrate the inner diameter and the outer diameter of the workpiece according to the operation control.

On the other hand, the calibration unit 300 further includes a sensor member 350 that emits sensing light across the processing unit 320 at any one edge of both sides of the body 310 outside the installation range of the processing unit 320. As it is installed, it is configured so that the processing is performed automatically by detecting whether or not the workpiece is set on the processing part.

The first operation unit 330 includes a first motor 331 that generates initial power; and a first shaft 332 that interconnects the first motor and the reference shaft 321; and, a first shaft is provided. It is configured of a first block 333 that moves up and down within a range that is substantially connected to the reference axis to move up and down along with it.

The first motor 331 is installed so that its axis faces vertically from the bottom surface of the body 310, is connected to the outside by a cable, and is driven by receiving power.

The first shaft 332 is extendedly coupled to each other by a coupling 331a on the shaft of the first motor 331, has a shape formed with a thread on the outer periphery, and the first block 333 penetrates the first shaft. It is installed in the same manner as the TM screw among the ready-made products as it is configured to freely lift and descend within the range provided by the first shaft along the thread when the first shaft rotates.

In the first operation unit 330 having the above configuration, when the first motor 331 is driven, the first shaft 332 rotates, and the first block 333 installed through the first shaft is rotated according to the rotation direction. Elevating or descending together with the reference shaft 321 is performed by riding the screw thread.

For example, when the first block 333 descends, the outer diameter inclined surface of the reference shaft 321 presses and expands the inner diameter of the first pressurization unit 322, thereby interposed between the first pressurization unit and the second pressurization unit 323. Close the outer diameter of the workpiece. At this time, while the first pressing unit 322 is in close contact with the inner diameter of the workpiece, the calibration unit 300 or the workpiece rotates at a set speed, and the inner diameter roundness of the workpiece is corrected.

The second operation unit 340 is provided with a second motor 331 that generates initial power; and a second shaft 342 that interconnects the second motor and the cover body 324; and, a second shaft is provided. It is composed of a second block 343 that moves up and down within a range that is substantially connected to the cover body and lifts up and down with it.

The second motor 341 is installed on the bottom surface of the body 310 so that its axis faces vertically within a range that does not interfere with the first motor 331, and is connected to the outside by a cable to receive power and driven.

The second shaft 342 is vertically extended and coupled on the shaft of the second motor 341 and has a shape formed with a thread on the outer periphery, and the second block 343 is installed through the second shaft and rotates the second shaft. It has the same structure and performance as the TM screw among ready-made products as the first shaft and the first block, as a configuration in which the lifting is freely performed within the range provided by the second shaft along the thread.

Meanwhile, the second operation unit 340 sequentially couples the second motor 341, the second shaft 342, and the second block 343 to the right edge of the cover body 324, and the cover body A third shaft 344 and a third block 345 are installed at the left edge of the.

At this time, pulleys are provided on the same horizontal line on the second shaft 342 and the third shaft 344, respectively, and the driving force of the second motor 341 is applied to the second shaft by connecting a belt to the pulley. It is configured so that two axes can be operated simultaneously with one motor as it reaches the third shaft 344 through the 342 and the belt.

Such a structure is to achieve the purpose of precisely lifting or lowering both sides of the cover body 324 having the largest diameter with the same force.

As described above, the roundness correction apparatus of the present invention includes a reference shaft 321 and a first pressing unit 322 for correcting the inner diameter of a workpiece, and a second pressing unit 323 and a cover body for correcting the outer diameter of the workpiece. 324). Further, in order to extend the diameter of the first pressing part 322 by lowering the reference shaft 321, a first operation unit 330 connected to the reference shaft to drive only the reference shaft is provided, and the cover body 324 It is configured with a second operation unit 340 that is connected to the cover body and drives only the cover body in order to decrease the diameter of the second pressurizing portion 323 by lowering it.

As described above, the first operation unit 330 for correcting the inner diameter of the workpiece and the second operation unit 340 for correcting the outer diameter of the workpiece are separately provided to individually lift the reference shaft 321 and the cover body 324 According to this, the roundness of the outer and inner diameters of the workpiece can be selectively corrected, and the outer and inner diameters can be simultaneously corrected according to the type of work.

10 is a front view of a pipe roundness correction apparatus configured according to a preferred embodiment of the present invention, and FIG. 11 is a front view showing a coupling structure between a frame and a correction unit.

As shown in Figure 10, the pipe roundness correction apparatus of the present invention is installed inside the frame 200 of a rectangular parallelepiped made of a profile so that the correction unit 300 can be safely protected from external factors while being placed at a specified position, It consists of a supply unit 100 for continuously supplying the workpiece to one of both sides based on the frame 200, and a discharge unit 400 for discharging the processed workpiece.

In the present invention, the supply unit 100 and the discharge unit 400 are simply expressed as conveyors, but are not limited to their shape and structural function, and include all means for smoothly supplying and discharging the workpiece. Will do.

In particular, the structure of the frame 200 in which the calibration unit is installed is as follows.

The frame 200 is a frame body 210 consisting of a rectangular parallelepiped and the internal space is divided into upper and lower parts by a main plate; and, a correction unit is installed, and a main body that allows the installed correction unit to be disposed under the frame body. Plate 220; And, a rail member 230 installed horizontally across the upper portion of the frame body; And, a robot arm 241 that is horizontally movable on the rail member and is provided at the end of the robot arm to hold the workpiece Consists of; a robot 240 consisting of a robot finger 242 and transferring the supplied workpiece to the calibration unit or discharging the processed workpiece from the calibration unit.

Meanwhile, the robot 240 enters the workpiece into the spaced space of the processing unit 220 while holding the workpiece, and the robot continuously grips the workpiece until the moment when the workpiece is calibrated and discharged, thereby entering the processing unit. It serves as a stopper so that the workpiece does not deviate due to the corrective force.

In this way, the robot 240 continuously grips the workpiece until supply, correction, and discharge, and may expand or reduce the correction area of the workpiece by using the force that the robot enters the workpiece into the workpiece.

For example, if a workpiece is entered with a basic force, if the robot pushes the workpiece a little harder and enters the space more, assuming that the basic range in which the cross section of the workpiece is corrected is 5cm, correction is made as much as the range to which the entry was added. On the contrary, if the robot presses the workpiece slightly and the entry into the spaced space falls short of the basic range, correction is made as much as the range that is not reached.

By controlling the robot 240, it is possible to freely set the roundness correction range of the workpiece.

According to the roundness correction apparatus of the present invention having the configuration as described above, unlike the conventional correction apparatus in which only one of the inner diameter or the outer diameter is calibrated or the inner diameter and the outer diameter are simultaneously processed, the central axis and the first, 2The machining part consisting of the pressurization part and the cover body is operated by the first and second motors, respectively, and the inner and outer diameters of the pipe are simultaneously or selectively pressurized to correct the roundness, overcoming the limitations of the roundness correction, and precision processing of various shapes of workpieces. It can be calibrated properly, and from this, you can produce a high-quality product.

In addition, the present invention is a hydraulic drive method, unlike the existing structure, which was difficult to use as well as manufacturing facilities due to the complex structure, the first motor and the first motor to correct the inner diameter of the pipe by expanding the first pressing unit by elevating the central axis. It consists of a simple structure of the second motor and the second shaft, which corrects the outer diameter of the pipe by tightening the second pressing part by raising and lowering the shaft and the cover body. As it is not required, it can actively reduce the economic burden.

The present invention described above has been described with reference to an embodiment shown in the drawings, but this is only exemplary, and various modifications and other equivalent embodiments are possible from those of ordinary skill in the art. Should be clarified. Accordingly, the true technical protection scope of the present invention should be interpreted by the appended claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

100. Supply unit 200. Frame
210. Frame body 220. Main plate
230. Rail 240. Robot
300. Correction unit 310. Body
320. Processing unit 330. First operation unit
340. Second operation unit 400. Discharge unit

Claims (7)

The diameter is tightened by pressing the first pressing part 322 and the cover body 324 which are arranged in concentric circles, and the diameter is enlarged by the pressure by the lifting of the reference shaft 321 so as to be in close contact with the inner diameter of the workpiece and the cover body 324 A calibration unit 300 comprising a processing unit 320 consisting of a second pressing unit 323 in close contact with the outer diameter of the workpiece; And, a rectangular frame 200 that protects from external factors by placing the fixing unit at a set position. ); And, a supply unit 100 for continuously supplying the workpiece based on the frame 200; And, a discharge unit 400 for discharging the processed workpiece; and a pipe for correcting the roundness of the cross section of the workpiece. In the roundness correction device,
The calibration unit 300 is a body 310 formed of a rectangular parallelepiped and on which the processing unit 320 is seated; And, it is combined with the reference shaft 321 in a state embedded in the body, and the reference shaft is combined with a motor and a TM screw. A first operation unit 330 that expands the diameter of the first pressing unit 322 by inducing the lifting and descending; And, it is combined with the cover body 324 in a state built into the body, and the cover body is combined with the motor and the TM screw. A second operation unit 340 that reduces the diameter of the second pressurization unit 322 by inducing a lowering; and the inner diameter of the workpiece is controlled by the operation control of the first operation unit 330 and the second operation unit 340. Containing simultaneous or selective correction of the outer diameter,
The second operation unit 340 includes a second motor 341 installed so that the axis faces vertically from the bottom surface of the body 310 within a range in which the first motor does not interfere; And, it extends vertically from the axis of the first motor. A second shaft 342 that is installed and has a thread formed on the outer periphery; And, it is installed through the second shaft and is coupled to the cover body 324 at the end, and when the second shaft rotates, it is raised and lowered with the cover body along the screw thread. Including; a second block 343;
The second operation unit 340 is coupled to the right edge of the cover body 324 by mutually coupling the second motor 341, the second shaft 342, and the second block 343, and the cover body 324 ) Is a third shaft 344 and a third block 345 are installed at the left edge, the second shaft and the third shaft are connected to each other by a pulley (Pulley) and a belt (Belt) of the second motor 341 Pipe roundness correction apparatus, characterized in that the second block and the third block are raised and lowered simultaneously by driving.
The method of claim 1,
The first operation unit 330,
A first motor 331 installed so that the axis faces vertically on the bottom surface of the body 310;
A first shaft 332 extending vertically on the shaft of the first motor by a coupling 331a and having a thread formed at the outer periphery;
A first block 333 that is installed through the first shaft and is coupled to the reference shaft 321 at an end thereof, and moves up and down with the reference shaft along the thread when the first shaft rotates;
Pipe roundness correction device, characterized in that consisting of.
delete delete The method of claim 1,
By further including a sensor member 350 installed on both sides of the body 310 out of the installation range of the processing unit 320 to emit sensing light across the processing unit 320, setting the workpiece on the processing unit Pipe roundness correction device, characterized in that the processing is made by automation by determining whether or not.
The method of claim 1,
The calibration unit 300 is disposed at a specific position and installed on the frame 200 for safe protection from external factors,
The frame 200,
A frame body 210 made of a rectangular parallelepiped and in which the inner space is divided into upper and lower parts by a main plate;
The calibration unit is installed, the main plate 220 for placing the installed calibration unit under the frame body;
A rail member 230 installed horizontally across the upper portion of the frame body;
It consists of a robot arm 241 that is horizontally movable on the rail member and a robot finger 242 provided at the end of the robot arm to hold the workpiece, and transfers the supplied workpiece to the calibration unit or discharges the processed workpiece from the calibration unit. Robot 240;
Pipe roundness correction device, characterized in that consisting of.
The method of claim 6,
The calibration unit 300 is a pipe roundness calibration apparatus, characterized in that the calibration range of the workpiece is set according to the pressing force of the robot (240).

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