KR102021093B1 - Friction welding apparatus for pipe support - Google Patents

Abstract

The present invention relates to a friction welder for a steel pipe support, capable of integrating an outer pipe, a male screw pipe and a floor plate, which are components of a pipe support, by connecting the components at the same time. To achieve the purpose, the friction welder includes: a heat stock mounted on one side of a bed, and rotating or stopping the male screw pipe while supporting the pipe; a tail stock mounted on the other side of the bed, and rotating or stopping the floor plate while supporting the plate; a vise mounted on the bed between the head stock and the tail stock, and supporting the outer pipe; a first saddle located between the bed and the head stock, and guiding the head stock to slide towards an end of the outer pipe held by the vise; a first actuator for transferring the first saddle with the head stock mounted thereon; a second saddle located between the bed and the tail stock, and guiding the tail stock to slide towards the other end of the outer pipe held by the vise; and a second actuator for transferring the second saddle with the tail stock mounted thereon.

Description

Friction welding apparatus for pipe support {Friction welding apparatus for pipe support}

The present invention relates to a friction welding machine for pipe supports, and more particularly, to a friction welding machine for steel pipe supports for joining and integrating an external appearance, a male thread pipe and a bottom plate at the same time.

In general, temporary materials that are temporarily installed for the construction of a structure and then dismantled or dismantled after construction have a great impact on quality and safety, depending on their structure and performance.

Among the temporary materials, steel pipe support, which is used the most in construction sites, is used to support concrete formwork until concrete gets a certain strength.

Figure 1 shows a conventional assembled steel pipe support for height adjustment and easy disassembly, referring to this, it is inserted into the inner tube (2) in the outer shell (1) and integrally formed on the top of the outer tube (1) Insert the support pin (6) into the binding hole (5) formed at regular intervals in the inner tube (2) through the long hole (4) of 3) and then adjust the position of the female screw (7) to narrow or widen the overall length consist of.

In particular, the exterior (1) is composed of a structure in which the female screw (7) and the male screw pipe (3) for inserting the screw coupling and the support pin (6) at the top and the bottom plate (8) at the bottom are joined. Is joined by melt welding such as arc welding or CO ₂ welding.

However, in the melt welding method, a worker such as a welder melts the metal by hand and joins it, and thus the quality is not uniform according to the skill of the operator, and a microstructure of a type such as a cast microstructure is developed at the welded zone. As a result, physical properties such as hardness, strength, and ductility of the joint are inevitably deteriorated compared to the base material, and thus there is a limit that the defect rate is considerably high and the reliability is significantly lowered.

In addition, the melt welding method has a problem of causing thermal deformation or defects at the joint due to its unique high heat input.

On the other hand, friction welding (friction welding) is a method of joining by using heat generated by friction generated on the contact surface while pressing and pressing a metal and a material such as metal, and the like, unlike a fusion welding method, such as a welding rod or filler metal It does not require any subsidiary materials and does not generate harmful fumes or flames to the human body, improving the working environment, and enabling automation to maintain uniform quality, thus increasing the reliability of the product.

Here, the above-described background or the prior art is merely to help the present inventors understand or understand the technical meaning of the present invention as information obtained in the process of deriving the present invention, and the technology to which the present invention belongs before the application of the present invention. It does not mean that the technology is widely known in the field.

KR 10-1843755 B1 (2018.03.26) KR 10-1731904 B1 (2017.04.25) KR 10-1411220 B1 (2014.06.17) KR 10-1184985 B1 (2012.09.17)

Accordingly, the present inventors conceived in view of solving the technical limitations and problems of the conventional pipe support joining method using the conventional melt welding method while comprehensively considering the above-mentioned matters, and the appearance and the external thread and the bottom plate of the pipe support. Work at the same time to develop a pipe support friction welding machine that can reduce the defect rate and improve the quality as well as increase the reliability and productivity of the product by simultaneously welding The invention was devised.

Accordingly, the present invention has been made in an effort to provide a friction welder for a pipe support, which enables the external appearance of a pipe support and a male screw pipe and a bottom plate to be simultaneously joined by friction welding.

Another technical problem and object to be solved by the present invention is to provide a friction welding machine for a pipe support that can quickly and easily match the center of the pipe support and the center of the male screw pipe and the bottom plate.

The technical problems and objects to be solved by the present invention are not limited to the technical problems and objects mentioned above, and other technical problems and objects not mentioned will be clearly understood by those skilled in the art from the following description.

Specific means according to an embodiment of the present invention for achieving the object as described above and to solve the technical problem is a bed, a head which is installed on one side of the bed, the head for giving or stopping the rotation while supporting the male screw tube Head stock, on top of the other side of the bed, tail stock for turning or stopping the rotation while supporting the bottom plate, on the bed between the head stock and the tail stock, A supporting vise, positioned between the bed and the head stock, the first birds guiding the head stock to slide toward one end of the bite appearance, the first birds mounted with the head stock A first actuator for transferring, positioned between the bed and the tail stock, the tail stock being different from the appearance of the bite A friction welder for a pipe support is provided, including a second saddle for guiding sliding toward one end and a second actuator for conveying the tail stock mounted second birds.

As a result, the present invention can be bonded to the external appearance, the male thread pipe and the bottom plate at the same time can reduce the failure rate of the pipe support and improve the quality, such as strength.

A preferred embodiment of the present invention, the first distance sensor for measuring the distance to the edge of the male screw bitten by the head stock and transmits to the controller, by measuring the distance to the edge of one end of the appearance of the bite of the vise to the controller A second distance sensor for transmitting, a first positioning plate for positioning the first saddle on which the head stock is mounted and the first actuator, a third actuator for elevating the first positioning plate, and the first and second Analyze the detection value of the two-distance sensor and the third actuator is moved up and down by a predetermined distance by numerical control to adjust the third actuator so that the center of the male screw tube bitten by the head stock and the appearance of the bite bite. The control unit may further include a driving unit.

A preferred embodiment of the present invention, the third distance sensor for measuring the distance to the edge of the bottom plate bitten by the tail stock and transmits to the control unit, by measuring the distance to the other end edge of the appearance of the bite of the vise to the control unit A fourth distance sensor for transmitting, a second positioning plate for positioning the second saddle and the second actuator on which the tail stock is mounted, a fourth actuator for elevating the second positioning plate, and the third and By analyzing the detection value of the fourth distance sensor and by the numerical control the second positioning plate is raised and lowered by a predetermined distance to the center of the bottom plate bitten by the tail stock and the center of the appearance of bite bite by the vise It may be configured to further include a control unit for driving.

Embodiment of the present invention having the means and configuration for achieving the above object and the technical problem, as well as reducing the failure rate of the pipe support and improve the quality by joining and unifying the external appearance, the male screw pipe and the bottom plate at the same time The reliability of the product can be improved by securing safety such as strength to prevent conduction and buckling.

In addition, the external appearance and the center of the male screw pipe and the bottom plate can be quickly and easily and accurately matched to each other, thereby greatly improving the efficiency of the welding operation and productivity.

Here, the effects of the present invention are not limited to the above-mentioned effects, and other effects that are not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view showing a conventional assembled steel pipe support.
Figure 2 is a front configuration diagram schematically showing a pipe support friction welder according to an embodiment of the present invention.
Figure 3 is a plan view schematically showing a pipe support friction welder according to an embodiment of the present invention.
Figure 4 is a front configuration diagram schematically showing the localization of the head stock and vise of the components of the pipe support friction welding machine according to an embodiment of the present invention.
5 is a front configuration diagram schematically showing a local portion of the tail stock and the vise of the components of the pipe support friction welding machine according to an embodiment of the present invention.
6 is a front configuration diagram schematically showing an operating state of the first and second positioning plates of the components of the pipe support friction welding machine according to the embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms to be described below are defined in consideration of functions in the present invention, which clearly indicates that the concept is to be interpreted in a concept consistent with the technical spirit of the present invention and commonly used or commonly recognized in the art.

In addition, when it is determined that the detailed description of known functions or configurations related to the present invention may obscure the gist of the present invention, the detailed description thereof will be omitted.

The accompanying drawings are exaggerated or simplified in order to explain and explain the structure and operation of the technology for convenience and clarity, and it is to be understood that each component does not exactly match the actual size and shape.

In addition, as used herein, the term and / or means a combination of a plurality of related items or any item of a plurality of related items, and when a part includes any component, this is a particularly opposite description. Unless otherwise indicated, it does not exclude other components, which means that other components may be further included.

In other words, it means that there is a feature, number, steps, actions, components, parts or a combination thereof described in the present specification, one or more other features or numbers, step action components, parts or a combination thereof It should be understood that they do not exclude the presence or the possibility of adding them.

In addition, the terms "unit" and "unit" mean a module form that functions as a unit or a role that processes at least one function or any certain operation desired in a system, and is a combination of hardware or software or a combination of hardware and software. It can be implemented as a device or an assembly capable of performing independent operations or the like through means.

Terms such as top, bottom, top, bottom, or top, bottom, top, bottom, etc. are used for convenience to distinguish relative positions in each component. For example, the upper part of the drawing may be named and the lower part of the bottom.

In addition, terms such as first and second may be used to describe various components. That is, terms such as first and second may be used only for the purpose of distinguishing one component from other components. For example, the first component may be referred to as the second component without departing from the scope of the present invention, and the second component may also be referred to as the first component.

2 to 5, the main configuration of the friction welding machine for pipe support according to the embodiment of the present invention, the bed 10, the head stock 20, the tail stock 30, the vise 40, The first saddle 25, the first actuator 26, the second saddle 35, the second actuator 36, and the controller 50 are included.

In addition, the first positioning plate 60, the third actuator 61, the second positioning plate 70 and the fourth actuator 71 may be further included.

Bed 10 is made of a flat plate shape on the top surface and serves as a solid base or base function having a certain height for the convenience of work.

Here, the lower surface of the bed 10 may be mounted on the corners of the four corners (unsigned) that can be adjusted in height to easily fit the horizontal and the like.

The head stock 20 supports the male screw tube 3 at a predetermined height, and moves the position on one upper surface of the bed 10 to receive rotational force from the electric motor 21 to give the male screw tube 3 a rotation. It is possible.

That is, the head stock 20 is rotatably provided by the rotational force of the electric motor 21, and is provided with the chuck 22 for pressing and holding the male screw tube 3 at the end thereof.

Here, the electric motor 21 has its electric shaft connected to the head stock 20 by the electric unit, and rotates the head stock 20 at a constant rotation speed in accordance with the opening and closing signal of the control unit 50.

The tail stock 30 supports the bottom plate 8 at a predetermined height, and receives a rotational force from the electric motor 31 at regular intervals from the head stock 20 so as to give rotation to the bottom plate 8. The other side surface of the bed 10 is provided so that a position movement is possible.

That is, the tail stock 30 is rotatably provided by the rotational force of the electric motor 31, and the chuck 32 which bites and holds the bottom plate 8 at the end is provided.

Here, the electric motor 31 has its electric shaft connected to the tail stock 30 by the electric unit, and rotates the tail stock 30 at a constant rotation speed in accordance with the opening and closing signal of the control unit 50.

On the other hand, the motor (21) (31) can be used to ensure the operation is reliable, automatic remote operation and to easily adjust the speed, stop, reverse and the like.

For example, it is possible to adopt a servo motor which changes the voltage input according to the control signal to the rotation angle and quickly stops and reverses the operation, or a step motor which rotates by a predetermined angle. It is also possible to employ a geared motor including a reducer that adjusts to output by force.

As the transmission unit of the electric motors 21 and 31, a belt transmission system for coupling the belt to a pulley installed on the transmission shaft and transmitting the belt, a coupling for a shaft joint, or the like can be adopted.

In addition, the head stock 20 and the tail stock 30 may be equipped with a brake for stopping the rotation thereof.

The vise 40 is mounted on the bed 10 between the head stock 20 and the tail stock 30 to securely hold the exterior 1.

Here, the vise 40 may adopt a conventional clamp structure for fixing the outer shell 1 as if it is wrapped.

Therefore, the vise 40 may be coupled to the rotatable through the solid fixing or bearing when fixing the exterior 1 through the clamp structure.

In addition, during rotation through the bearing can be rotated through free rotation or a separate driver.

The first saddle 25 is provided between the bed 10 and the head stock 20 to guide the head stock 20 to slide toward one end of the exterior 1 bitten by the vise 40. .

Here, the first saddle 25 is fixed to the upper surface of the bed 10, the guide rail for guiding the sliding movement, the guide block for sliding and reciprocating along the guide rail and fixed on the guide block and the head stock 20 is The slider may be mounted.

The first actuator 26 is mounted on one side of the first positioning plate 70 to operate under the control of the controller 50 to transfer the first saddle 25 on which the head stock 20 is mounted.

The second saddle 35 is provided between the bed 10 and the tail stock 30 to guide the sliding movement toward the other end of the exterior 1 bitten by the tail stock 30 vise 40. .

Here, the second saddle 35 is fixed to the upper surface of the bed 10, the guide rail for guiding the sliding movement, the guide block for sliding reciprocating along the guide rail and fixed on the guide block and the tail stock 30 is The slider may be mounted.

On the other hand, the guide rail and the guide block of the first and second saddles (25, 35) evenly distributes forces such as inertial force and unbalanced load due to the transfer to prevent damage caused by play or uneven wear, as well as vibration and torsion It is preferable to install a pair of left and right or top and bottom to maintain a high precision operation while enabling a more smooth transfer by minimizing the.

In addition, the first and second saddles 25 and 35 may be provided with a sensor for controlling the position according to the sliding movement or an encoder and a vision system for sensing the position and speed to accurately recognize and control the position movement. .

The second actuator 36 is mounted on one side of the second positioning plate 70 to operate under the control of the controller 50 to transfer the second saddle 35 on which the tail stock 30 is mounted.

The controller 50 functions to control and operate the motors 21 and 31 and the first to fourth actuators 26, 36, 61, and 71 in a predetermined state. It is installed in the bed (10).

That is, the control unit 50 has a switch opening / closing signal for power supply, operation control, and the like from the first to the fourth distance sensors S1, S2, S3, S4, and the appearance 1, the male screw 3, and the like. Receive the position detection signals of the bottom plate 8, respectively, and based on this, the electric motors 21, 31 and the first to fourth actuators 26, 36, 61 (by the preset program) The overall operation is controlled with the sequential operation of 71).

Here, the control unit 50 applies a signal in accordance with the operation and opening and closing of the foot (pedal) switch, push switch, and the like to step on the foot, the rotational speed of the electric motor (21) (31) and the first to fourth actuator (26) (36) 61, 71 can be made of a switch having a function of freely adjusting the operation of.

In addition, the controller 50 may be provided in the form of an operation panel for directly operating a switch or the like or selecting and inputting a specific command.

In addition, the first to fourth distance sensors S1, S2, S3, and S4 emit infrared rays to measure the distance between two points, or transmit an ultrasonic wave having sharp directivity to the object to be measured. An ultrasonic distance sensor that measures the time to receive the reflected wave from and knows the distance can be employed.

The first positioning plate 60 is provided between the bed 10 and the first saddle 25 to determine the position of the first saddle 25 and the first actuator 26 on which the head stock 20 is mounted. have.

The third actuator 61 is arranged to operate under the control of the controller 50 to selectively lift the first positioning plate 60.

In addition, the third actuator 61 is provided with a guide bush 62 and a guide bar 63 for guiding the lifting operation of the first positioning plate 60 to be more stable.

The second positioning plate 70 is provided between the bed 10 and the second saddle 35 to determine the position of the second saddle 35 and the second actuator 36 on which the tail stock 30 is mounted. have.

The fourth actuator 71 is arranged to operate under the control of the controller 50 to selectively lift the second positioning plate 70.

In addition, the fourth actuator 71 is provided with a guide bush 72 and a guide bar 73 for guiding the lifting operation of the second positioning plate 70 to be more stable.

Here, the first to fourth actuators 26, 36, 61, and 71 control unit 50 transmits a control signal to a drive source such as a compressor to operate a cylinder (push loader, piston or plunger) by hydraulic pressure or pneumatic pressure. In this case, a device and an actuator mechanism for converting energy and control signals into mechanical work may be adopted, such as a conventional hydraulic motor or a hydraulic cylinder having a structure of moving forward or backward.

The friction welding machine for pipe support according to the embodiment of the present invention configured as described above rotates the male screw pipe 3 bitten by the head stock 20 and the bottom plate 8 bitten by the tail stock 30 at a constant rotational speed, and Each end face is pressed against both ends of the outer casing 1 clamped to the vise 40, and can be joined and integrated at the same time by suddenly stopping the rotating shaft with a brake when the friction portion reaches an appropriate temperature.

Therefore, it is possible to reduce the defective rate of pipe support and improve the quality as well as to increase the reliability of the product by securing the safety such as strength for conduction and buckling prevention.

Meanwhile, the first distance sensor S1 measures the distance to the edge of the male screw tube 3 bitten by the head stock 20 and transmits the measured distance to the controller 50, and the second distance sensor S2 is a vise 40. Measures the distance to the edge of one end of the appearance (1) bites and transmits to the controller 50.

At this time, the controller 50 analyzes the detection values of the first and second distance sensors S1 and S2 and drives the third actuator 61 by numerical control to drive the first positioning plate 60 at a predetermined distance. The control is performed to adjust the position so that the difference between the center of the male threaded pipe 3 bitten by the head stock 20 and the center of the appearance 1 bitten by the vise 40 falls within the allowable range.

For example, as shown in FIGS. 4 and 6, the radius of the appearance 1 bited by the vise 40 is 40 mm and the distance to the edge of the appearance 1 measured by the second distance sensor S2 is When the reference distance is set to 100 mm at 60 mm, the radius of the male screw pipe 3 bited by the chuck 22 of the head stock 20 is 50 mm, and the male screw pipe 3 measured by the first distance sensor S1 is measured. When the distance to the edge of the head is 40 mm, the calculated distance is 90 mm, so that the male screw pipe bitten by the head stock 20 by driving the third actuator 61 and raising the first positioning plate 60 by the difference value 10 mm. The center of (3) and the center of the appearance (1) bitten by the vise (40) can be matched with each other.

Therefore, the center of the exterior (1) and the male screw pipe (3) and the bottom plate (8) can be quickly and easily and accurately aligned, thereby making it possible to lubricate or frictionally weld various pipe supports universally regardless of the size of the pipe support. The efficiency of the work as well as the automatic process can greatly improve productivity.

On the other hand, the present invention is not limited by the above-described embodiments and the accompanying drawings, and various modifications and applications that are not illustrated within the scope not departing from the technical spirit of the present invention, as well as of each component It is apparent to those skilled in the art that the present invention may be widely applied by changing to other embodiments equivalent to substitution.

Therefore, the contents related to the modification and application of the technical features of the present invention should be interpreted as being included in the technical spirit and scope of the present invention.

1: appearance 3: male thread
8: bottom plate 10: bed
20: Head Stock 21: Electric Motor
22: Chuck 25: First Birds
26: First Actuator 30: Tail Stock
31: electric motor 32: chuck
35: second birds 36: second actuator
40: vise 50: control unit
60: first positioning plate 61: third actuator
62: guide bush 63: guide bar
70: second positioning plate 71: fourth actuator
72: guide bush 73: guide bar

Claims (3)

Bed; A head stock mounted on one side of the bed to rotate or stop rotation while supporting a male threaded tube; A tail stock mounted on the other side of the bed to rotate or stop the rotation while supporting the bottom plate; A vise mounted on the bed between the head stock and the tail stock and supporting an appearance; First birds positioned between the bed and the head stock and guiding the head stock to slide toward one end of the exterior bitten by the vise; A first actuator for transporting the first birds on which the head stock is mounted; Second birds positioned between the bed and the tail stock and guiding the tail stock to slide toward the other end of the appearance of being bitten by the vise; And a second actuator for transporting the second birds on which the tail stock is mounted;
A first distance sensor for measuring the distance to the edge of the male screw bitten by the head stock and transmitting it to the controller; A second distance sensor which measures a distance to an edge of one end of the exterior bitten by the vise and transmits the distance to the controller; A first positioning plate for determining positions of the first saddle and the first actuator on which the head stock is mounted; A third actuator for elevating the first positioning plate; And analyzing the detection values of the first and second distance sensors to elevate the first positioning plate by a predetermined distance by numerical control so that the center of the external thread bite and the center of the external thread bite are bitten by the head stock. Friction welding machine for a pipe support further comprising a control unit for driving the third actuator.
delete The method of claim 1,
A third distance sensor for measuring the distance to the edge of the bottom plate bitten by the tail stock and transmitting it to the controller;
A fourth distance sensor for measuring the distance to the edge of the other end of the external appearance of the bite and transmitting it to the controller;
A second positioning plate for positioning the second saddle and the second actuator on which the tail stock is mounted;
A fourth actuator for elevating the second positioning plate; And
Analyze the detection values of the third and fourth distance sensors to raise and lower the second positioning plate by a predetermined distance by numerical control so that the center of the bottom plate bitten by the tail stock and the appearance of the bite bite are oriented. A control unit for driving the fourth actuator;
Friction welding machine for pipe support further comprising.

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