KR100444548B1 - Automatic plant piping manufacturing method - Google Patents

Abstract

The present invention is equipped with industrial piping using the cutting unit 20, the facing unit 30 and the welding unit 40, and the control unit 10 for commanding their operation,

Preliminary step (P1) by analyzing the drawings required for the pipe in the control unit 10 to analyze the required unit pipe, and to check whether the unit pipe for the material stored in the analyzed unit pipe can be assembled into the corresponding spool (assembleable unit pipe) (P1) In the preliminary step (P1), the pipe material length and the residual material are set so that the unit pipe required for the pipe by the spool is manufactured based on the pipe design data (drawing) among the spools smaller than the unit pipe required for the drawing. Performing a first step S1 and a second step S2 for sorting such that there is no material loss on the basis of the stored unit body data in an amount necessary for the operation; A third step (S3) of loading the raw data based on the sorted data and cutting the pipe raw material into the unit pipe in the cutting unit 20 and then transferring to the next step; A fourth step (S4) of processing the inner and outer peripheral edges and both end faces of the facing unit 30 so as to be welded by recognizing the position, the number, and the specifications of the cut unit pipes; The fifth step (S5) of classifying the processed unit pipe in the welding part and performing the first spot welding to complete the pipe shape, and the sixth step (S6) of welding under the welding conditions suitable for the base material of the pre-finished pipe shape welding site. It is an automatic piping installation method that is performed sequentially.

Description

Automatic plant piping manufacturing method

The present invention relates to a method for automatic piping installation, in order to automatically manufacture the pipe to cut the coating to the unit pipe on the basis of the pipe design based on the piping design, after welding the end of the cut of the cut unit pipe, and meet the piping specifications The present invention relates to an automatic piping installation method for automatically manufacturing pipes by primary and secondary welding.

In general, plumbing equipment is designed for piping, the operator cuts the required length and unit pipe according to the design, welded by hand to manufacture the pipe, and install the manufactured pipe in the required place.

By the way, since this method is performed by manual cutting by hand, there is a problem that a time loss occurs in each process of cutting and each process of welding, and an error occurs if the skilled worker is not.

The present invention is to solve this problem, the object of the present invention is to cut the unit pipe for the pipe to meet the specifications so that automatic piping is possible, and recognize the cut unit pipe to face (improved welding), the faced unit pipe It is to provide a method for making pipes to be automatically manufactured by primary and secondary welding so that the quality can be uniform, and even pipes can be manufactured even by unskilled workers.

To this end, the present invention is the process of designing and cutting the data of the unit pipe required by the length based on the piping design, the process of welding improvement to weld the cut section, and the selected unit pipe to improve the weld according to the size selected adjacent After primary welding, the entire adjacent area is welded to meet specifications.

1 is a block diagram for carrying out the present invention;

2 is a flowchart of the present invention,

3 is a preliminary flowchart of the present invention,

Figure 4 is a block diagram of the device constituting the present invention,

5 is an explanatory diagram showing a state before welding of a unit spool constituting the present invention;

6 is an explanatory diagram showing another state before welding of the unit spool of the present invention;

7 is an explanatory drawing illustrating a state of cutting the unit raw material in the pipe raw material forming the present invention;

8 is an exemplary view of a unit tube forming the present invention;

9 is an explanatory drawing showing a state in which the unit tubes forming the present invention are separately welded;

10 is an exemplary view of one spool welded through the process of FIG. 9;

11 is an enlarged cross-sectional view of a main portion conceptually illustrating a facing processing of the present invention.

Explanation of symbols for the main parts of the drawings

1; memory unit 2; keyboard 3; monitor 10; control unit 20; cutting unit 21; cutting saw blade 22; cutting motor 23; cutting body 24; carriage 25; loading table 30; facing unit 31; facing PID 32; driving motor 33; Conveyor 33-1; Conveyor 33-2; Conveyor 34; Loading Table 36; Facing Chuck 37; Face Grinding Machine 40; Welding Section 41; Welding Pierce 42; Welding Machine 43; Loading Table 44; Bridge 45; Tag Welding Section 46; Conveyor 47; secondary welding chuck 50; spool 60; unit tube 61; pipe raw material 62; elbow connector 63; tee connector

That is, the present invention is to install the industrial piping using the cutting unit, the facing unit and the welding unit, and the control unit for commanding their operation,

Preliminary step of analyzing the drawings required for the pipe in the control unit to analyze the necessary unit pipe, and to check whether the unit pipe for the material stored in the analyzed unit pipe can be assembled into the spool (assembleable unit pipe),

A first step of setting pipe material lengths and residues corresponding to each spool based on the piping design data obtained in the preliminary step of the unit pipe required for piping; and

Performing a second step of sorting such that there is no material loss based on the stored unitary body data in an amount necessary for the operation;

A third step of loading the raw data from the control unit to the cutting unit based on the sorted data, and cutting the pipe raw materials into the unit pipe in the cutting unit and then transferring to the next step;

A fourth step of processing the inner and outer circumferential edges and both end faces of the facing unit by receiving the unit pipe cut by the cutting unit and recognizing the position, the number, and the specification to be welded to the next step;

A fifth step of preliminarily completing the pipe form by first classifying the processed unit pipes at the welding part and performing mutually primary spot welding;

An object of the present invention is to provide an automatic piping installation method that sequentially performs a sixth step of secondary welding under welding conditions suitable for a base material of a pre-finished pipe-shaped welding part.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a block diagram for carrying out the present invention, in which a program and data are stored in the memory unit 1, retrieved and controlled if necessary, and a command of the data is input to the keyboard 2, and instructions and data are sent to the monitor 3; A control unit 10 for indicating a,

Cutting unit 20 for performing a sequential cutting for each length of the unit tube by the control command of the control unit 10,

A facing unit 30 for simultaneously welding and improving the inner and outer peripheral surfaces and the end face of the unit tube required by the control command of the control unit 10 after cutting;

The weld pipe 40 is formed by welding the unit pipes which have been improved by welding to sequentially control the control unit 10 by the control command.

The cutting unit 20 recognizes the specifications of the unit pipe and the raw material of the pipe and the sensor unit (S1) for providing to the terminal (P11) of the control unit 10, the sensing value from the sensor unit (S1) of the control unit 10 It is configured to include a cutting pipe 23 for driving the cutting motor 22 and the like to be received from the output terminal (P1) to perform the cutting.

The facing unit 30 recognizes the specifications of the cut unit body and sends the sensor unit S2 and the sensing value of the sensor unit S2 to the terminal P12 of the control unit 10 and the output terminal of the control unit 10 ( It is configured to include a facing tooth 31 which is supplied from P2) and drives the drive motor 32 or the like to perform welding improvement.

The welding part 40 recognizes the specifications of the faced unit body and sends the sensor part S3 and the sensing value of the sensor part S3 sent to the terminal P13 of the control part 10 from the control part 10 to perform welding. It comprises a welding piston 41 for driving the welding machine 42 and the like to perform.

3 is a flow chart of the present invention, but using the cutting section 20, the facing section 30 and the welding section 40, using the control unit 10 to command the operation of the industrial piping,

Preliminary step of analyzing the drawings required for the pipe in the control unit 10 to analyze the required unit pipe, and to check whether it is possible to assemble to the corresponding spool (assembly unit pipe) using the material pipe for storing the analyzed unit pipe (P1);

A first step (S1) of recognizing a unit pipe required for piping based on piping design data, and setting pipe raw material length and residues;

A second step (S2) of sorting such that there is no material loss by the amount required for the operation based on the stored unit body data;

A third step (S3) of loading the raw data from the control unit 10 to the cutting unit 20 based on the sorted data and cutting the pipe raw materials into the unit pipe in the cutting unit 20 and then moving to the next step;

The fourth step (S4) of processing the inner and outer peripheral surface edges and both end faces in the facing unit 30 to be welded by receiving the position, number and specification of the unit pipe cut by the cutting unit 20 so as to be welded. ;

A fifth step (S5) of recognizing the processed unit pipe in the welding part 40 to complete primary pipe welding by spot welding;

A sixth step S6 of secondary welding is performed in sequence under welding conditions suitable for the base material of the welded portion of the pre-finished pipe form.

The third step (S3) receives the data to be cut from the control unit 10 to the cutting unit (20) (S31), with a chuck to creep the pipe raw material is transferred by the length of the unit tube to be cut (S32) After driving the carriage, the cutting machine drives the cutting machine to perform cutting and transfers it to the conveyor (S33).

In the fourth step S4, the face unit 40 recognizes the unit tube and firstly clamps one end, and simultaneously performs primary welding on the inner circumferential surface, the outer circumferential surface, and the end face of the remaining ends (S41). Subsequently, the machined section is secondly clamped, and the first clamped portion is secondary welded to improve the conveyance of the conveyor for the next process (S42).

The fifth step (S5) is to check the unit pipe improved by welding in the welded portion 40 aligned with the piping design (S51) and then placed in the welding jig (S52),

After clamping in a placed state (S53), spot welding is performed by tag welding, and then a process (S54) is performed to transfer to the secondary welding unit.

The sixth step (S6) is to clamp the corresponding unit pipe of the primary welding portion of the primary welded pipe (S61), recognize the specifications of the unit pipe (S62), and the welding to the corresponding specifications for each welding site unit When the welding is completed for each section, the process of sequentially transferring to the conveyor (S63) is performed.

4 is a plan view showing an example of a device for performing the present invention,

In the cutting unit 20, the pipe material is moved to the left and right while chucking one end to the carriage 24 by the control of the sensor unit S1 and the cutting pipe 23 so as to meet the desired length of the unit body. Drive the cutting motor 22 for driving the cutting saw blade 21 in the state. Reference numeral 25 is a loading table for loading the raw materials of pipes and transporting them to the carriage part.

The unit body loaded by the driving of the cutting motor 22 moves along the conveyor 33 and is loaded into the facing unit 30.

The facing unit 30 recognizes the length and specifications of the mounting body 34 accommodating the unit body, and the length and specification of the unit body loaded on the mounting body 34 through the sensor unit S2, and provides the same through the control unit 10. A pacing chuck (31) for receiving the corresponding command and a pacing chuck (36) for creep the unit body under the control of the pacing pell (31), and following the chucking of the pacing chuck (36); And a facing grinder 37 for polishing the outer circumferential surface and the cross section. The facing chuck 36 and the facing grinder 37 are shown by a drive motor 32 in FIG. 1 for convenience of description. Reference numeral 38 is a bridge for guiding movement from the loading table 34 to the conveyor 33-1.

The unit body faced by the facing part 30 moves to the welding part 40 through the conveyor 33-2. The welding part 40 is a table welding unit 43 for loading the pacing unit tube through the conveyor 33-2, and the tag welding unit (or the unit tube moved through the bridge 44) directly from the mounting plate 43 ( 1st welding) The welding machine 47-1 is operated by moving the tag welding part 45 and the bridge 44 along the bridge 44 to the conveyor 46, in the state aligned with the secondary welding chuck 47, and carrying out secondary welding. Configure to finish. Of course, depending on the shape of the pipe can be configured to simultaneously perform the primary and secondary interlock and to selectively weld as needed.

5 is a diagram illustrating a simple arrangement by dividing the pipe forming the present invention into a spool unit for manufacturing, and the spool 50 includes a combination of several unit tubes 60. For convenience of explanation, the unit tube 60 is denoted by tube bodies A1-A6 divided according to the position and order, and each unit tube A1-A6 is processed (facing) the boundary portion (this is shown in FIG. 4). Performed in the facing section 30) and welding (W1-W5) (which is carried out in the weld section 40 according to the present invention). (In the drawing, the remaining sections of the welds W1, W3, W5 are automatically removed. Illustrated as manual, but not limited to this)

6 is an exemplary view showing an example of another spool, and after facing both ends of the tube (B1-B7) in which each unit tube 60 is divided in order, welding each portion in the weld (W1-W6) (In the drawing, the welding (W3, W4, W6) part is automatically illustrated as the remaining part manually. However, the automatic and manual positions and conditions can be set according to the environment and conditions.)

FIG. 7 is a view illustrating a case where the unit tube 60 constituting the present invention is obtained by cutting the pipe raw material 61.

FIG. 8 is a view illustrating the unit pipe 60 through the pipe raw material 61 and the elbow connecting pipe 62 and the tee connecting pipe 63 in the form of separately processed parts.

9 is a view illustrating a welding process of the welding part 40 of the present invention. The unit pipe 60 and the elbow connecting body 62 are first welded to produce a primary pipe 60a, and then another unit pipe 60. ) Is a view for explaining a process of manufacturing the secondary pipe (60b) by welding the tee connecting pipe (63).

FIG. 10 is an exemplary view of completing welding fabrication of the selected spool by combining the primary and secondary tubes 60a and 60b according to FIG. 9.

11 is an enlarged cross-sectional view showing main parts of a conceptual concept of facing processing according to the present invention, and includes bites 36-1, 36-2, and 36-3 for processing the outer circumferential surface, the cross-section, and the inner circumferential surface of one end of the unit tube 60; And a facing chuck 36 which fixedly combines these bytes (bytes 36-1, 36-2, 36-3).

The present invention configured as described above is illustrated or not shown using a program (for example, a CAD program) appearing on the monitor 3 using the keyboard 2 (including the mouse) of the control unit 10 shown in FIG. A drawing (cad drawing; drawing made by a third party) of the pipe to be manufactured through the Io port (for example, the RS-232C port) is stored in the memory unit 1.

Then, the program stored in the memory unit 1 (the piping is divided into unit piping combinations (spool 50 as shown in Figs. 5 and 6) and the required unit piping of the divided piping is analyzed (for example, divided by number and dimensions The preliminary step P1 for starting the program to operate) is performed as shown in FIGS. 2 and 3.

The preliminary step P1 divides the piping drawings to be manufactured as shown in FIG. 3 by the spools 50, and analyzes the unit pipe 60 which is analyzed in the drawings forming each spool 50 (for example, FIGS. 5 and 6). A first step (P01) for confirming the quantity of the unit tube (for example, the unit tube expected to be obtained from FIG. 7) obtained as a pipe raw material;

On the basis of the quantity confirmed in step 01 (P01), when the comparison value of the unit pipe for each spool and the unit pipe for actual material obtained on the production drawing becomes negative, a cancellation is ordered, and the stock quantity of the designated material (unit pipe) for each spool ( A_I_QTY) compares whether the material (unit body) required in the drawing is more than zero, if it is less than zero, makes a mark (F) to cancel the work of the spool, compares the next spool, and if it is more than zero, proceeds to the next step. It is to be performed (02 step (P02)).

If not remaining (zero or more) in step (P02), substitute the stock value of the actual material pipe obtained as the stock value (A_I_QTY-A_S_QTY) of the difference instead of the existing stock amount (A_I_QTY), and then replace the okay indication (T) with the corresponding spool. (For example, the spool of FIG. 5) and check whether the next spool (for example, the spool of FIG. 6) was calculated until the last spool (BM (Bill of Material) list of spools) If the calculation is performed and not all the calculations are performed, the operation (step P0113) to be described below is performed to check whether the calculation has been performed up to the last spool, and the check is repeated (step 03 (P03)).

If one spool is checked to filter only spools with a T mark for each spool, the spool counter is increased by one to check only the spools that match the spool material in the drawing with the required material. When the ok spool is activated, step 04 (P04) is performed sequentially to perform OK filtering (T).

Step 01 (P01) is a step 0100 (P0100) of checking the quantity of unit bodies based on the drawings (for example, a combination of unit bodies 60 based on the spool 50 of FIGS. 5 to 6). And, as shown in FIG. 7 and the like to be performed in parallel at the same time divided into the 0120 step (P0120) to confirm the quantity of the unit pipe 60 to be obtained based on the pipe raw material 61.

Specifically, the 0100 step (P0100) is an automatic input (automatically input BM data for each spool by analyzing itself based on the drawing) by analyzing the material pipe data to be used in the drawing, or manually input (for each spool in the pipe drawing) Receiving BM data manually) (P0110),

Specifying a priority number for spool production based on the input data (step P0111), and sorting the spool by the designated priority level (P0112).

And sequentially selecting a list of material pipes included in the corresponding spool for each spool (the selected spool is OK displayed (eg, OK displayed as a flag T)),

Based on the selected list, a step (P0114) of specifying the quantity of material pipes of the corresponding spool (for example, A_S_QTY) is sequentially performed.

In addition, the 0120 step (P0120) is to automatically input (inventory data) or to manually input (inventory data) the material quantity of the material pipe to be used (the material required in the drawing from the material data. Receiving an inventory list manually and inputting a quantity (stock quantity) of the material (P0121),

Summing up the quantity of each inputted material pipe by size and type to separately add the quantity of duplicately inputted items by material (P0122);

A step (P0123) of designating a stock amount (A_I_QTY) for each material of the summed material pipes is sequentially performed. Subsequent to this state, step P02 described above is performed to compare the quantity of the material on the drawing with the quantity of the material stored in each spool, so that only the spool having the satisfactory material is selected for processing.

After the preliminary step P1 as described above, the controller 10 loads the data received from the memory unit 1 and checks the quantity of each spool of the drawing and the material (okay (T)). Initial setting for setting the length of the raw material 61 and the residual length of FIG. 7 is performed (first step S1).

Then, the control unit 10 sorts the unit tube and fitting data to sort the data so that a minimum residue is left, and sets a work process for each spool (second step S2).

In this state, the controller 10 drives the cutting unit 20 through the output terminal P1, which causes the cutting unit 20 illustrated in FIG. 4 to drive. Of course, for this purpose, the control unit 10 commands an input signal through the sensor unit S1 for recognizing the position of the pipe raw material 61 from the terminal P11. The cutting unit 20 recognizes the pipe raw material 61 loaded through a loader (not shown) on the mounting table 25 and instructs a cutting command to the cutting pipe 23. Then, the cutting motor 22 is driven to rotate the cutting saw blade 21, which sequentially cuts the required unit tube 60 as shown in FIG. 7 to obtain a unit tube. This process is to load the cutting data (NC data) in the cutting PI as shown in Figure 2 (step S31), the carriage 24 is a unit pipe in the clamping state of the pipe raw material 61 shown in Figure 7 to be cut While moving by the length of (step S32), the cutting is performed (using the cutting motor 22 and the saw blade 21) and transferred to the conveyor 33 (step S33).

Subsequently, the conveyor 33 is loaded with the mounting table 34. In the loading table 34, if necessary to move to the conveyor (33-1) via the bridge 44, the sensor unit (S2) recognizes it and sends it to the terminal (P12) of the control unit 10, the control unit 10 The pacing unit 30 allows pacing work through the output terminal P2. The pacing unit 30 is driven by the driving motor 32 by the command of the pacing 31 to operate the pacing chuck 36, for example (to allow the chuck to chuck the unit body, which is the configuration shown in FIG. 11). As a result, the facing chuck 36 is operated using the bite 36-1, 36-2, and 36-3 as one cross section of the unit tube 60, thereby forming the outer circumferential surface of the unit tube 60. The end face and the inner circumferential surface are polished by the facing polishing machine 37 to enable pacing (welding improvement). The reason for this polishing is to facilitate the subsequent welding operation. Of course, the pacing process drives one end of the unit tube in the state as shown in FIG. 11 by driving the driving motor 32 in the pacing piecy 31 according to the command of the control unit 10 (the first machining step (S41), then The second side is second-processed in the state as shown in FIG. 11 to transfer the welded portion 40 through the conveyor 33-2 (step S42).

The unit bodies which have been finished in this manner are subjected to spot welding (steps S51-S54) in the welding portion 40, and then welded to form a complete spool (steps S61-S63).

That is, in the welding part 40, the unit pipe 60 loaded on the mounting table 43 is recognized by the sensor part S3, and welded to form the spool 50 having the arrangement as shown in FIG. 5 (or 6). . To this end, first, a pair of unit bodies 60 are spot welded at the tag welding part 45 as shown in FIG. 9 (steps S51-S54), and the secondary welding chuck 47 is carried out through the conveyor 46. Secondary welding is performed by using the welding machine 42 (Weld the primary and secondary tubes 60a, 60b, respectively, as shown in Fig. 9). And after aligning them in the corresponding spool form as shown in FIG. 10 again to pass through the tag welding portion 45 and the welding machine 42 to complete the spool (steps S61-S63). Of course, in the drawings, the tubular-shaped unit tubular body 60 as a unit body was explained by cutting through the pipe raw material 61, but as shown in FIG. 8, the elbow connecting body 62 and the tee connecting body 63 are separately processed. It will be appreciated that the one that is supplied through a loader or the like is faced and welded.

In addition, as shown in FIGS. 5 and 6, the welding between the unit bodies forming the spool also uses a separate robot arm to serve as an automatic (W1, W3, W5) and a manual (W2, W4) (using as a chucking means). ) Can be sequentially faced and welded, which is a common technique, and therefore, is illustrated in FIG. 4 only as a weld 40 that can serve as both manual and automatic.

In addition, as shown in the flow chart of FIG. 2, the unit pipes are sequentially sorted by spools for tag welding (for this, data is loaded from the welding pipe 41) (step s51), and the fitting materials are installed in the correct order. Check with a bar code and the like (S52). Then, each material (unit tube) is clamped (step S53), and tag welding is performed (step S54).

Then, the spare spool that has been tagged welded is clamped (step S61), welded (S62), and transferred (step S53). Of course, the step (S51-S63) of Figure 2 described the welding once, but is sequentially welded several times to make a spool.

The present invention described above is not limited to the above-described embodiments and drawings, and various permutations, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those who have

As described above, the present invention allows the pipes to automatically check the drawings and materials so that the sequential work can be performed in a spool manner to separate the sections so that the pipes can be worked automatically. It makes it possible to easily prepare materials by sorting the matching spools and to list the parts that do not match, and to use them in various environments such as automatic and manual use if necessary. In the facing, the inner circumferential surface, the outer circumferential surface and the end face of the tubular body are processed at a time to eliminate welding defects during welding and improve workability.

Claims (10)

Industrial piping is installed using the cutting section 20, the facing section 30 and the welding section 40, and the control unit 10 for commanding their operation, Preliminary step (P1) by analyzing the drawings required for the pipe in the control unit 10 to analyze the required unit pipe, and to check whether the unit pipe for the material stored in the analyzed unit pipe can be assembled into the corresponding spool (assembleable unit pipe) (P1) ), First, in the preliminary step (P1), the pipe material length and the residual material are set so that the unit pipe required for the drawing is manufactured based on the pipe design data (drawing) among the spools smaller than the unit pipes stored in the drawing. Step S1, and Performing a second step S2 of sorting such that there is no material loss on the basis of the stored unit tube data so as to be necessary for the operation; A third step (S3) of loading the raw data from the control unit 10 to the cutting unit 20 based on the sorted data and cutting the pipe raw materials into the unit pipe in the cutting unit 20 and then moving to the next step; The fourth step (S4) of processing the inner and outer peripheral surface edges and both end faces in the facing unit 30 to be welded by receiving the position, number and specification of the unit pipe cut by the cutting unit 20 so as to be welded. ; A fifth step (S5) of preliminarily completing the pipe form by performing a primary spot welding on the processed unit pipe by separately recognizing the processed unit pipes; Automatic piping installation method characterized in that to perform the sixth step (S6) of the secondary welding in the welding condition suitable for the base material of the pre-finished pipe-shaped welding site. The preliminary step (P1) according to claim 1, wherein the preliminary step (P1) is a first step (P01) for confirming the quantity of the unit tube expected to be obtained from the unit tube and pipe raw material of the drawing A second step (P02) of comparing whether the unit pipe for the actual obtained material is insufficient based on the quantity confirmed in the first step (P01), Step 03 (P03), which repeats the process of recording the OK mark (T) on the spool and checking the next spool again until the last spool if not enough, Automatic piping installation method characterized in that to perform step 04 (P04) to filter only the spool with the okay indication (T) for each spool sequentially. According to claim 2, the first step (P01) is a step 0100 (P0100) to confirm the quantity of the unit tube based on the drawing, and the 0120 step of confirming the quantity of the unit tube expected to be obtained based on the pipe raw material ( P0120) automatic piping installation method characterized in that performed in parallel at the same time. According to claim 3, Step 0100 (P0100) is an automatic input or manual input to analyze the material pipe data to be used in the drawing (P0110), Specifying a priority number for spool production (P0111), Sorting by the specified priority (P0112), Sequentially selecting a list of material pipes corresponding to one spool (P0113), Automatic piping installation method characterized in that the step (P0114) of sequentially specifying the quantity of the corresponding material pipe based on the selected list. According to claim 3, Step 0120 (P0120) is a step of receiving the inventory amount of the material pipe to be used automatically or manually from the material data (P0121), A step of summing the quantity of overlapping input items by material by summing the quantity of each inputted material pipe size and type (P0122) Automatic piping installation method characterized in that the step (P0123) to sequentially specify the inventory amount for each material of the material pipes added. The method of claim 2, wherein the step P02 identifies the material A_S_QTY designated from the step P0100 of designating the material on the drawing and the stock amount A_I_QTY of the required materials, and executes the execution when the comparison value becomes negative. Determining a reference time point for canceling (P021), When the difference between the requirements required in the drawing is less than zero according to the reference time point, the progress of the spool for each spool is canceled to select the material conduit of another spool in the step (P0113), and when it is zero or more, the next step (P03) Automatic piping installation method characterized in that to carry out. The method of claim 1, wherein the third step S3 is provided with data to be cut from the control unit 10 to the cutting unit 20 (S31), and the cutting unit 20 has a chuck to creep the pipe raw material. Automatic conveying installation method characterized in that the transfer to the length of the unit pipe (S32), driving the cutter to perform the cutting after the carriage transfer is completed, and then step (S33) to transfer the cut material to the conveyor. The method of claim 4, wherein the fourth step (S4) is the first unit clamping one end by recognizing the unit tube in the facing unit 30 to simultaneously process the primary circumferential surface and the outer circumferential surface and the cross-section of the remaining end to the first welding improvement (facing) (S41), and then automatically clamped the cross section of the machined, automatic welding equipment method characterized in that the step of performing the step (S42) to transfer to the next step after improving the secondary welded portion. The method of claim 1, wherein the fifth step (S5) is to check the unit pipe improved by welding in the welded portion 40 aligned with the piping design and then placed in the welding jig (S51, S52), After clamping in a placed state (S53), after spot welding is performed by tag welding, Automatic piping installation method characterized in that to perform the step (S54) to be transferred to the secondary welding unit. The method according to claim 1, wherein the sixth step S6 clamps the corresponding unit pipe of the primary welding portion of the pipe primary welded in the fifth step S5 (S61), and recognizes the specification of the unit pipe and corresponds to the corresponding specification. Welding for each welding site (S62), and the automatic piping installation method characterized in that performing the step (S63) to sequentially transfer to the conveyor when the welding is completed for each unit section.