An automated welding device for steel pipe production and its production system

Abstract

The present invention relates to the technical field of steel pipe welding, in particular to an automatic welding device for steel pipe production and its production system, including: an annular frame rotatably installed inside a circular hole penetrating through the side wall of the bracket by a first rotation driving component; two vertical moving frames jointly installed inside the annular frame through a position adjusting component, the position adjusting component drives the vertical moving frames to perform planar movement adjustment, and rotating moving frames are sleeved on the outer circles of the two vertical moving frames; a fixed box fixed on the side wall of the rotating moving frame; a bevel processing component installed on the side wall of the fixed box; through the setting of the bevel processing component, the bevel processed by the bevel processing component can be subsequently used for welding the steel pipe, thereby facilitating the avoidance of the situation where the bevel position of the steel pipe is contaminated or rusted, thus affecting the welding stability of the steel pipe.

Description

Technical Field

[0001] The present invention relates to the field of steel pipe welding, and particularly to an automatic welding device for steel pipe production and its production system. Background Art

[0002] Steel pipes are a common industrial material, widely used in multiple fields such as construction, petroleum, chemical industry, and machinery manufacturing.

[0003] During the production process of steel pipes, welding treatment is often required. Before welding the steel pipe, groove machining needs to be carried out on the welding position. The groove machining should adopt mechanical methods to reduce the defects in the heat affected zone. Therefore, the cross-section of the steel pipe needs to be grooved in advance before welding. After the groove machining of the steel pipe is completed, it needs to be repositioned for welding treatment. If the steel pipe is not welded in time after groove machining, the groove position of the steel pipe will be re-contaminated or rusted, thus affecting the welding quality of the steel pipe. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to provide an automatic welding device for steel pipe production and its production system.

[0005] In a first aspect, the present invention provides an automatic welding device for steel pipe production, including a bracket, and further including:

[0006] An annular frame, rotatably installed inside a circular hole penetrating through the side wall of the bracket through a first rotation driving component;

[0007] Two vertical moving frames, jointly installed inside the annular frame through a position adjusting component, the position adjusting component drives the vertical moving frames to perform planar movement adjustment, and the outer circles of both vertical moving frames are sleeved with rotating moving frames;

[0008] A fixed box, fixed on the side wall of the rotating moving frame;

[0009] A groove machining component, installed on the side wall of the fixed box, used for automatically identifying the end cross-sectional shape of the steel pipe and performing groove machining on the end of the steel pipe before welding according to the cross-sectional shape;

[0010] A welding component, installed on the bracket, used for driving the welding component to move along the shape trajectory for welding according to the end cross-sectional shape of the steel pipe identified by the groove machining component;

[0011] A switching driving component, installed at the bottom of the bracket, used for driving the bracket to move, thereby driving the groove machining component and the welding component to perform switching processing;

[0012] The staff locates and installs the steel pipes to be welded on both sides of the bracket through the feeding component. Subsequently, the feeding component is controlled to push the steel pipes towards the bracket, so that the ends of the two steel pipes to be welded contact the bevel processing component. After the bevel processing component is started, it automatically identifies the cross-sectional shape of the steel pipe, enabling the bevel processing component to move and process along the edge path of the cross-section of the steel pipe, and perform bevel processing on the cross-section of the steel pipe, thereby automatically realizing the bevel processing of the cross-section of the steel pipe. After the bevel processing of the cross-section of the steel pipe is completed, the feeding component pushes the two steel pipes away from each other by a certain distance. Subsequently, the control switching drive component is started. After the switching drive component is started, it drives the bracket to move, so that the bracket drives the bevel processing component and the welding component to move after moving, making the bevel processing component move away from the steel pipe and the welding component move closer to the steel pipe. The welding component moves to the position of the bevel processing component. Subsequently, the feeding component pushes the two steel pipes closer to each other, so that the ends to be welded of the two steel pipes are fitted, and the bevels on the two steel pipes coincide. Subsequently, the welding component is controlled to start, and the welding component copies the movement path of the bevel processing component to weld the steel pipe. Thus, after the bevel processing of the steel pipe, the welding of the steel pipe is seamlessly connected, enabling the bevel processed by the bevel processing component to be subsequently used for welding the steel pipe, which is conducive to avoiding the situation that during the process of transferring the steel pipe to welding after the bevel processing is completed, and during the transfer process after the steel pipe is stored, the bevel position of the steel pipe is contaminated or rusted, thereby affecting the welding stability of the steel pipe.

[0013] Preferably, the bevel processing component includes:

[0014] A moving box, which is slidably installed at the bottom of the fixed box through a reversing drive mechanism, and a slope is provided on one side of the moving box;

[0015] A grinding disc, which is rotatably installed on the slope, and a grinding drive component for driving the grinding disc to rotate is installed inside the moving box;

[0016] A straight pipe, which is fixed to the side wall of the fixed box facing away from the rotating moving frame, and a plurality of notches are arranged in a circumferential array on the side wall of the straight pipe;

[0017] A plurality of pressure sensors, which are arranged in one-to-one correspondence with the notches and are fixed inside the notches;

[0018] The straight pipe is placed inside the steel pipe, and the moving box drives the grinding disc to be located outside the steel pipe. When the steel pipe approaches the grinding disc, the outer wall edge of the steel pipe gradually contacts the grinding disc. Since the grinding disc is inclined along with the slope, the closer the steel pipe is to the grinding disc, the larger the bevel formed by processing the edge of the steel pipe. Thus, by controlling the movement drive of the steel pipe by the feeding component, the size of the bevel processed on the steel pipe can be controlled, which is conducive to controlling the size of the bevel;

[0019] The grinding drive assembly drives the grinding disc to rotate. After the grinding disc rotates, it grinds the outer surface edge of the steel pipe to form a bevel. Subsequently, the moving frame is rotated to drive the moving box to move through the fixed box, thereby driving the grinding disc to move for bevel processing.

[0020] The pressure sensors on the straight pipe are squeezed by the inner wall of the steel pipe. If the steel pipe has a circular cross-section, the pressure sensors on the straight pipe remain unchanged all the time. At this time, the first rotation drive assembly is controlled to drive the annular frame to rotate, so that the grinding disc rotates along the outer wall of the steel pipe to process the outer wall edge of the steel pipe. If the steel pipe has a square cross-section, when the straight pipe moves along one side edge of the steel pipe, one of the pressure sensors on the straight pipe is continuously pressed. When the straight pipe moves to the edge of the steel pipe, another pressure sensor on the straight pipe is added to be pressed. At this time, the position adjustment assembly is controlled to drive the rotating moving frame to move in the direction away from the rotating moving frame that is continuously pressed, and at the same time, the commutation drive mechanism is controlled to start. When the added pressure sensor is located in the clockwise direction of the rotating moving frame that is continuously pressed, the rotating moving frame is driven to rotate 90° in the clockwise direction. When the added pressure sensor is located in the counterclockwise direction of the rotating moving frame that is continuously pressed, the rotating moving frame is driven to rotate 90° in the counterclockwise direction. Subsequently, the rotating moving frame is continuously moved to process the other side of the steel pipe, so that the grinding disc can process the bevel along the edge of the steel pipe, and automatically turns to process the other side after the processing of one side edge is completed, thereby realizing the automatic recognition processing of the steel pipe edge.

[0021] Preferably, the welding assembly includes:

[0022] A second annular frame, which is rotatably installed inside a through groove opened on the side wall of the bracket through a second rotation drive assembly;

[0023] A welding gun, which is installed on the inner wall of the second annular frame through a telescopic rod;

[0024] The second rotation drive assembly drives the second annular frame to rotate, and the telescopic rod can drive the welding gun to move along the direction of the telescopic rod. By controlling the movement of the telescopic rod and the rotation of the second annular frame, the welding gun can be driven to move to any position within the inner circle of the second annular frame, so that the welding gun can move along the movement track of the bevel processing assembly, and the edge of the steel pipe is welded by the welding gun.

[0025] Preferably, it further includes two feeding assemblies, which are symmetrically arranged on both sides of the bracket and are used to drive the steel pipe to move towards the bracket for bevel processing and welding;

[0026] The feeding assembly includes:

[0027] Two lifting platforms, which are placed side by side on the same side of the bracket;

[0028] Two groups of second fixing frames, with two of the second fixing frames as a group. One group of the second fixing frames corresponds to one lifting platform, and the second fixing frames of the same group are symmetrically fixed to the top of the lifting platform;

[0029] Four cylinders, respectively fixed to the side walls of the four second fixing frames;

[0030] Two groups of clamping frames, with two of the clamping frames as a group. The clamping frames are respectively fixed to the ends of the telescopic rods of the four cylinders, and the clamping frames of the same group are located between the second fixing frames of the same group;

[0031] The lifting end of the lifting platform can adjust the height of the steel pipe, and the translation end of the lifting platform can horizontally adjust the lifting end, thereby driving the steel pipe to move and adjust. The lifting end and the translation end of the lifting platform are respectively driven by a lifting push rod and a translation push rod, which is a mature existing technology and will not be elaborated here. This enables the steel pipe to be adjusted to a position where its center corresponds to the center of the annular frame, facilitating the bevel processing of the steel pipe. The second fixing frame can install the cylinder, and after the cylinder is started, it can push the clamping frame to move to clamp and position the steel pipe, which is conducive to maintaining the stability of the steel pipe during the processing.

[0032] Preferably, the commutation drive mechanism includes:

[0033] A fourth motor, fixed inside the fixed box, and a first gear is fixed to the output shaft of the fourth motor;

[0034] A rack, fixed to the bottom of the moving box, and the rack meshes with the first gear;

[0035] A fifth motor, fixed inside the fixed box, and the output shaft of the fifth motor passes through the rotating moving frame and then a second gear is fixed;

[0036] A third gear, fixed to the side wall of the vertical moving frame, and the third gear meshes with the second gear;

[0037] After the fourth motor is started, it can drive the first gear to rotate. The first gear drives the rack engaged with it to move, so that the rack drives the moving box to move, enabling the moving box to perform short-distance reciprocating movement after turning, which is conducive to fully bevel processing the edge of the steel pipe. After the fifth motor is started, it can drive the second gear to rotate through the output shaft. Under the meshing action of the second gear and the third gear, the second gear rolls around the third gear, thereby driving the rotating moving frame to rotate around the vertical moving frame, thus realizing the rotational drive of the rotating moving frame.

[0038] Second aspect, a production system method for an automated welding device for steel pipe production is provided. A control unit is installed on the bracket. The pressure sensors include four corresponding to the four directions of upper right, lower left in the clockwise rotation direction. This production system includes the following steps:

[0039] A1. The control unit obtains pressure information and pressure change information from the pressure sensors. The pressure information includes upper pressure information, lower pressure information, right pressure information, and left pressure information corresponding to the four pressure sensors.

[0040] A2. The control unit generates drive control information and steering control information based on the pressure information and the pressure change information. The drive control information includes upward movement control information, downward movement control information, leftward movement control information, and rightward movement control information. The steering control information includes clockwise steering information and counterclockwise steering information.

[0041] A3. The control unit sends the drive control information to the groove processing component and the position adjustment component to control the groove processing component and the position adjustment component to cooperate for groove processing commutation.

[0042] The pressure sensors generate pressure information after being pressed. The pressure information includes upper pressure information, lower pressure information, right pressure information, and left pressure information. The pressure sensor located above generates upper pressure information after being pressed. The pressure sensor located below generates lower pressure information after being pressed. The pressure sensor located on the right generates right pressure information after being pressed. The pressure sensor located on the right generates left pressure information after being pressed. The pressure sensors send the generated pressure information to the control unit. The pressure sensors generate pressure change information when the pressure they receive increases. For example, originally only the upper pressure sensor was pressed to generate upper pressure information, and now an additional right pressure sensor is pressed to generate right pressure information. At this time, the pressure sensors generate pressure change information simultaneously, and then the pressure sensors send the pressure change information to the control unit. After obtaining the pressure information and the pressure change information, the control unit generates drive control information and steering control information based on the pressure information and the pressure change information, and sends the drive control information and the steering control information to the groove processing component and the position adjustment component to control the groove processing component and the position adjustment component to cooperate for groove processing commutation.

[0043] Preferably, step A2 specifically includes:

[0044] The pressure change information includes constant pressure information and newly added pressure information. The constant pressure information is the pressure information received by the pressure sensor before generating the pressure change information, and the newly added pressure information is the newly added pressure information received by the pressure sensor after generating the pressure change information;

[0045] The control unit obtains the constant pressure information from the pressure change information;

[0046] When the constant pressure information is the upper pressure information, the control unit generates the downward movement control information. When the constant pressure information is the lower pressure information, the control unit generates the upward movement control information. When the constant pressure information is the right pressure information, the control unit generates the leftward movement control information. When the constant pressure information is the left pressure information, the control unit generates the rightward movement control information;

[0047] The control unit obtains the newly added pressure information from the pressure change information;

[0048] When the pressure sensor corresponding to the newly added pressure information is located in the clockwise direction of the pressure sensor corresponding to the constant pressure information, the control unit generates clockwise rotation information. When the pressure sensor corresponding to the newly added pressure information is located in the counterclockwise direction of the pressure sensor corresponding to the constant pressure information, the control unit generates counterclockwise rotation information;

[0049] The pressure change information includes constant pressure information and newly added pressure information. The constant pressure information is the pressure information received by the pressure sensor before generating the pressure change information, and the newly added pressure information is the newly added pressure information received by the pressure sensor after generating the pressure change information. For example, originally only the upper pressure sensor in the pressure sensor was pressed to generate upper pressure information, and now a right pressure sensor is added to be pressed to generate right pressure information. At this time, the constant pressure information is the upper pressure information, and the newly added pressure information is the right pressure information. At this time, the control unit generates downward movement control information according to the constant pressure information (at this time, it is the upper pressure information). At the same time, the newly added pressure information at this time (at this time, it is the right pressure information) is located in the clockwise direction of the constant pressure information (at this time, it is the upper pressure information), so the control unit generates clockwise rotation information at this time. Vice versa, so that the control unit generates drive control information (at this time, it is downward movement control information) and steering control information (at this time, it is clockwise rotation information) to perform movement adjustment control on the groove processing component and the position adjustment component, so as to realize the automatic recognition of the steel pipe cross-section trajectory by the groove processing component, and thus automatically move and process along the trajectory of the steel pipe cross-section edge, which is beneficial to improving the convenience and processing efficiency of steel pipe groove processing.

[0050] Preferably, it further includes:

[0051] The control unit obtains the movement path information from the bevel processing assembly;

[0052] The control unit generates welding path control information according to the movement path information;

[0053] The control unit sends the welding path control information to the welding assembly to control the welding assembly to move and weld along the path of the movement path information;

[0054] When the bevel processing assembly automatically identifies the trajectory of the steel pipe and performs bevel processing along the trajectory, the bevel processing assembly records and generates a movement trajectory to generate movement path information, and the bevel processing assembly sends the movement path information to the control unit. After obtaining the movement path information, the control unit generates welding path control information according to the movement path information, and sends the welding path control information to the welding assembly to control the welding assembly to move along the movement trajectory of the movement path information to weld the steel pipe.

[0055] Preferably, a vision sensor is fixedly installed on the inclined plane. The control unit includes a user terminal and further includes:

[0056] The control unit obtains the picture information from the vision sensor;

[0057] The control unit obtains the notch comparison information from the user terminal;

[0058] The control unit identifies the notch information in the picture information according to the notch comparison information. When the control unit identifies the notch information, the control unit generates a selection information, and the selection information includes the position information where the notch information is located;

[0059] The control unit generates welding control information according to the selection information, and the welding control information is used to control the welding assembly to stay and weld at the position information corresponding to the selection information;

[0060] The control unit sends the welding control information to the welding assembly;

[0061] The vision sensor takes pictures and obtains photos, and sends the photos to the control unit in the form of picture information. The staff inputs notch comparison information from the user terminal, and the user terminal sends the notch comparison information to the control unit, so that the control unit obtains the picture information and the notch comparison information. The control unit compares the picture information with the notch comparison information to identify the notch information in the picture information. Subsequently, the control unit generates a selection information, and the selection information includes the position information where the notch information is located. Subsequently, the control unit generates welding control information according to the selection information and sends the welding control information to the welding component to control the welding component to stay and weld at the position information corresponding to the selection information, so that the notch position at the edge of the steel pipe can be welded with a short stay, thereby improving the stability of the steel pipe welding.

[0062] Preferably, it further includes:

[0063] The control unit obtains the steel pipe cross-section information from the user terminal, and the steel pipe cross-section information includes square pipe information and round pipe information;

[0064] When the steel pipe cross-section information is the square pipe information, the control unit does not perform switching control. When the steel pipe cross-section information is the round pipe information, the control unit generates round pipe switching control information;

[0065] The control unit sends the round pipe switching control information to the first rotation drive component to control the first rotation drive component to drive the annular frame to rotate for circular steel pipe groove processing;

[0066] The staff inputs the steel pipe cross-section information of the steel pipe from the user terminal, inputs round pipe information when the steel pipe is a round pipe, and inputs square pipe information when the steel pipe is a square pipe. The user terminal sends the steel pipe cross-section information to the control unit. After the control unit obtains the steel pipe cross-section information, if the steel pipe cross-section information is the square pipe information, the control unit does not perform switching control. When the steel pipe cross-section information is the round pipe information, the control unit generates round pipe switching control information and sends the round pipe switching control information to the first rotation drive component to control the first rotation drive component to drive the annular frame to rotate for circular steel pipe groove processing.

[0067] Compared with the prior art, the present invention has the following beneficial effects:

[0068] 1. Through the provision of the bevel processing component, the present invention enables the bevel processing component to move and process along the path of the cross-section edge of the steel pipe, perform bevel processing on the cross-section of the steel pipe, thereby automatically realizing the bevel processing of the steel pipe cross-section. And after the bevel processing of the steel pipe, the welding of the steel pipe is seamlessly connected, so that the bevel processed by the bevel processing component can be subsequently used for the welding of the steel pipe, which is conducive to avoiding the situation that during the transfer of the steel pipe from the completion of bevel processing to welding, if there is interference during the storage and transfer process of the steel pipe, the bevel position of the steel pipe is contaminated or rusted, thus affecting the welding stability of the steel pipe.

[0069] 2. Through the provision of the control unit, the present invention realizes the automatic recognition of the cross-section trajectory of the steel pipe by the bevel processing component, so as to automatically move and process along the trajectory of the cross-section edge of the steel pipe, which is conducive to improving the convenience and processing efficiency of the bevel processing of the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 It is a schematic structural diagram of the method flow of the present invention.

[0071] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0072] Figure 3 It is a schematic diagram of the installation structure of the bracket of the present invention.

[0073] Figure 4 It is a schematic diagram of the structure of the bracket of the present invention after sectioning.

[0074] Figure 5 For the present invention Figure 4 The enlarged structural diagram at position A.

[0075] Figure 6 For the present invention Figure 4 The enlarged structural diagram at position B.

[0076] Figure 7 It is a schematic diagram of the structure of the annular frame of the present invention after sectioning Figure 1 .

[0077] Figure 8 For the present invention Figure 7 The enlarged structural diagram at position C.

[0078] Figure 9 It is a schematic diagram of the structure of the annular frame of the present invention after sectioning Figure 2 .

[0079] Figure 10 For the present invention Figure 9 The enlarged structural diagram at position D.

[0080] Figure 11Structural schematic of the ring frame after sectioning of the present invention Figure 3 。

[0081] Figure 12 Of the present invention Figure 11 Enlarged structural schematic of the position E in

[0082] In the figure: 1, support; 201, threaded frame; 202, first fixing frame; 203, first motor; 204, first screw; 3, ring frame; 301, first bevel gear; 302, second bevel gear; 303, second motor; 401, transverse moving frame; 402, vertical moving frame; 403, rotating moving frame; 5, moving box; 501, third motor; 502, third bevel gear; 503, fourth bevel gear; 6, grinding disc; 7, fixing box; 8, straight pipe; 801, pressure sensor; 9, fourth motor; 901, first gear; 902, rack; 1001, fifth motor; 1002, second gear; 1003, third gear; 11, lifting platform; 1101, second fixing frame; 1102, cylinder; 1103, clamping frame; 12, second ring frame; 13, welding torch. Detailed implementation manners

[0083] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0084] As Figures 2 to 12 shown, an automatic welding device for steel pipe production includes a support 1, and further includes:

[0085] A ring frame 3, rotatably installed inside a circular hole penetrating through the side wall of the support 1 through a first rotation driving assembly;

[0086] Two vertical moving frames 402, jointly installed inside the ring frame 3 through a position adjusting assembly, the position adjusting assembly drives the vertical moving frames 402 to perform planar movement adjustment, and rotating moving frames 403 are sleeved on the outer circles of the two vertical moving frames 402;

[0087] A fixing box 7, fixed to the side wall of the rotating moving frame 403;

[0088] A groove processing assembly, installed on the side wall of the fixing box 7, for automatically identifying the end cross-sectional shape of the steel pipe and performing groove processing on the steel pipe end before welding according to the cross-sectional shape;

[0089] A welding assembly, installed on the support 1, for driving the welding assembly to move along the shape trajectory for welding according to the steel pipe end cross-sectional shape identified by the groove processing assembly;

[0090] The switching drive assembly is installed at the bottom of the support 1 and is used to drive the movement of the support 1, so as to drive the groove processing assembly and the welding assembly to perform switching processing.

[0091] During the production process of steel pipes, welding treatment is often required. Before welding the steel pipes, groove processing needs to be carried out on the welding positions. The groove processing should adopt mechanical methods to reduce the defects in the heat-affected zone. Therefore, before welding the steel pipes, it is necessary to carry out groove processing on their cross-sections in advance. After the groove processing of the steel pipes is completed, they need to be repositioned for welding treatment. If the steel pipes are not welded in time after groove processing, the groove positions of the steel pipes will be re-contaminated or rusted, thus affecting the welding quality of the steel pipes.

[0092] This embodiment of the present invention can solve the above problems. The specific implementation method is as follows. The staff locates and installs the steel pipes to be welded on both sides of the support 1 through the feeding assembly. Then, the feeding assembly is controlled to push the steel pipes towards the support 1, so that the ends of the two steel pipes to be welded contact the groove processing assembly. After the groove processing assembly is started, it automatically identifies the cross-sectional shape of the steel pipe, so that the groove processing assembly can move along the edge path of the cross-section of the steel pipe for processing, and perform groove processing on the cross-section of the steel pipe, thus automatically realizing the groove processing of the cross-section of the steel pipe. After the groove processing of the cross-section of the steel pipe is completed, the feeding assembly pushes the two steel pipes away from each other for a certain distance. Then, the switching drive assembly is controlled to start. After the switching drive assembly is started, it drives the movement of the support 1, so that the support 1 drives the groove processing assembly and the welding assembly to move after moving, so that the groove processing assembly moves away from the steel pipe and the welding assembly approaches the steel pipe. The welding assembly moves to the position of the groove processing assembly. Then, the feeding assembly pushes the two steel pipes closer to each other, so that the ends to be welded of the two steel pipes are in contact, and the grooves on the two steel pipes coincide. Then, the welding assembly is controlled to start, and the welding assembly copies the movement path of the groove processing assembly to weld the steel pipe. Thus, after the groove processing of the steel pipe, the welding of the steel pipe is seamlessly connected, so that the groove processed by the groove processing assembly can be used for welding the steel pipe later, which is beneficial to avoiding the situation that the groove position of the steel pipe is contaminated or rusted during the transfer from groove processing to welding of the steel pipe, as well as during the transfer process after the steel pipe is stored, thus affecting the welding stability of the steel pipe.

[0093] The switching drive assembly includes:

[0094] The threaded frame 201 is fixed to the bottom of the support 1;

[0095] The first fixing frame 202 is arranged on the ground;

[0096] The first motor 203 is fixed inside the first fixing bracket 202. The output shaft of the first motor 203 penetrates through the first fixing bracket 202 and is fixed with a first screw rod 204. The first screw rod 204 is threadedly connected to the threaded bracket 201;

[0097] After the first motor 203 is started, it drives the connected first screw rod 204 to rotate through the output shaft. After the first screw rod 204 rotates, it drives the threaded bracket 201 connected thereto to move. The threaded bracket 201 drives the bracket 1 to move, thereby realizing the movement drive of the bracket 1, and further switching the groove processing assembly and the welding assembly by driving the bracket 1.

[0098] The first rotation drive assembly and the second rotation drive assembly have the same structure;

[0099] The first rotation drive assembly includes:

[0100] The second motor 303 is fixed on the top of the bracket 1. The output shaft of the second motor 303 is fixed with a second bevel gear 302;

[0101] The first bevel gear 301 is fixed on the side wall of the annular bracket 3. The second bevel gear 302 meshes with the first bevel gear 301;

[0102] After the second motor 303 is started, it drives the connected second bevel gear 302 to rotate through the output shaft. The second bevel gear 302 drives the engaged first bevel gear 301 to rotate. The first bevel gear 301 drives the annular bracket 3 to rotate, thereby realizing the drive of the annular bracket 3;

[0103] It should be noted that the first bevel gear 301 in the second rotation drive assembly is fixed on the side wall of the second annular bracket 12. The structural principles of the second rotation drive assembly and the first rotation drive assembly are the same, and will not be elaborated here.

[0104] The position adjustment assembly includes:

[0105] Two transverse moving brackets 401 are symmetrically and horizontally slidably installed on the slide rails fixed on the inner wall of the annular bracket 3 through a first lead screw drive mechanism;

[0106] Two vertical moving brackets 402 are symmetrically and vertically slidably installed on the two transverse moving brackets 401 through a second lead screw drive mechanism;

[0107] Both the first lead screw drive mechanism and the second lead screw drive mechanism are common lead screw drive mechanisms, which are mature existing technologies and will not be elaborated here;

[0108] The first lead screw drive mechanism drives the transverse moving frame 401 to move horizontally along the slide rail, and the second lead screw drive mechanism drives the vertical moving frame 402 to move vertically along the transverse moving frame 401, so as to realize the drive of the vertical moving frame 402 at any position on the horizontal plane, thereby facilitating the vertical moving frame 402 to adapt to the cross-section of the steel pipe for moving processing.

[0109] As an alternative embodiment, the bevel processing assembly includes:

[0110] The moving box 5 is slidably installed at the bottom of the fixed box 7 through a reversing drive mechanism, and a slope is provided on one side of the moving box 5;

[0111] The grinding disc 6 is rotatably installed on the slope, and a grinding drive assembly for driving the grinding disc 6 to rotate is installed inside the moving box 5;

[0112] The straight pipe 8 is fixed to the side wall of the fixed box 7 on the side facing away from the rotating moving frame 403, and a plurality of notches are arranged in a circumferential array on the side wall of the straight pipe 8;

[0113] A plurality of pressure sensors 801 are arranged in one-to-one correspondence with the notches and are fixed inside the notches;

[0114] The straight pipe 8 is placed inside the steel pipe, and the moving box 5 drives the grinding disc 6 to be located outside the steel pipe. When the steel pipe approaches the grinding disc 6, the outer wall edge of the steel pipe gradually contacts the grinding disc 6. Since the grinding disc 6 is inclined along with the slope, the closer the steel pipe is to the grinding disc 6, the larger the bevel formed by processing the edge of the steel pipe. Therefore, by controlling the movement drive of the steel pipe by the feeding assembly, the size of the bevel processed on the steel pipe can be controlled, which is beneficial to controlling the size of the bevel;

[0115] The grinding drive assembly drives the grinding disc 6 to rotate. After the grinding disc 6 rotates, the outer surface edge of the steel pipe is ground to form a bevel. Subsequently, the rotating moving frame 403 drives the moving box 5 to move through the fixed box 7, thereby driving the grinding disc 6 to move for bevel processing;

[0116] The pressure sensor 801 on the straight pipe 8 is squeezed by the inner wall of the steel pipe. If the steel pipe has a circular cross-section, the pressure sensor 801 on the straight pipe 8 that is under pressure remains unchanged. At this time, the first rotation drive assembly is controlled to drive the annular frame 3 to rotate, so that the grinding disc 6 rotates along the outer wall of the steel pipe to perform beveling on the outer wall edge of the steel pipe. If the steel pipe has a square cross-section, when the straight pipe 8 moves along one side edge of the steel pipe, one of the pressure sensors 801 on the straight pipe 8 is continuously under pressure. When the straight pipe 8 moves to the edge of the steel pipe, an additional pressure sensor 801 on the straight pipe 8 is under pressure. At this time, the position adjustment assembly is controlled to drive the rotating moving frame 403 to move in the direction away from the rotating moving frame 403 that is continuously under pressure, and at the same time, the commutation drive mechanism is controlled to start. When the additional pressure sensor 801 is located in the clockwise direction of the rotating moving frame 403 that is continuously under pressure, the rotating moving frame 403 is driven to rotate 90° in the clockwise direction. When the additional pressure sensor 801 is located in the counterclockwise direction of the rotating moving frame 403 that is continuously under pressure, the rotating moving frame 403 is driven to rotate 90° in the counterclockwise direction. Subsequently, the rotating moving frame 403 is continued to be moved to perform beveling on the other side of the steel pipe, so that the grinding disc 6 can perform beveling along the edge of the steel pipe, and automatically turn to the other side for processing after the processing of one side edge is completed, thereby realizing the automatic recognition and processing of the steel pipe edge.

[0117] The grinding drive assembly includes:

[0118] The third motor 501 is fixed inside the moving box 5, and a third bevel gear 502 is fixed to the end of the output shaft of the third motor 501;

[0119] The fourth bevel gear 503 is rotatably installed inside the moving box 5. The fourth bevel gear 503 meshes with the third bevel gear 502, and the fourth bevel gear 503 is coaxially and fixedly connected to the grinding disc 6;

[0120] After the third motor 501 is started, it drives the third bevel gear 502 to rotate through the output shaft. The third bevel gear 502 drives the meshing fourth bevel gear 503 to rotate, and the fourth bevel gear 503 drives the grinding disc 6 to rotate, thereby realizing the rotational drive of the grinding disc 6.

[0121] As an optional embodiment, the welding assembly includes:

[0122] The second annular frame 12 is rotatably installed inside the through groove opened on the side wall of the bracket 1 through the second rotation drive assembly;

[0123] The welding gun 13 is installed on the inner wall of the second annular frame 12 through a telescopic rod;

[0124] The second rotation drive assembly drives the second annular frame 12 to rotate. The telescopic rod can drive the welding gun 13 to move along the direction of the telescopic rod. By controlling the movement of the telescopic rod and the rotation of the second annular frame 12, the welding gun 13 can be driven to move to any position within the inner circle of the second annular frame 12, so that the welding gun 13 can move along the movement track of the bevel processing assembly, and the edge of the steel pipe is welded by the welding gun 13.

[0125] As an alternative embodiment, it further includes two feeding assemblies, symmetrically arranged on both sides of the bracket 1, for driving the steel pipe to move towards the bracket 1 for bevel processing and welding;

[0126] The feeding assembly includes:

[0127] Two lifting platforms 11, placed side by side on the same side of the bracket 1. The lifting platform 11 includes a lifting end and a translation end;

[0128] Two groups of second fixing frames 1101. Two second fixing frames 1101 form a group. One group of second fixing frames 1101 corresponds to one lifting platform 11. The second fixing frames 1101 of the same group are symmetrically fixed on the top of the lifting platform 11;

[0129] Four cylinders 1102, respectively fixed on the side walls of the four second fixing frames 1101;

[0130] Two groups of clamping frames 1103. Two clamping frames 1103 form a group. The clamping frames 1103 are respectively fixed at the end parts of the telescopic rods of the four cylinders 1102. The clamping frames 1103 of the same group are located between the second fixing frames 1101 of the same group;

[0131] The lifting end of the lifting platform 11 can adjust the height of the steel pipe, and the translation end of the lifting platform 11 can horizontally adjust the lifting end, thereby driving the steel pipe to move and adjust. The lifting end and the translation end of the lifting platform 11 are respectively driven by a lifting push rod and a translation push rod, which are mature existing technologies and will not be elaborated here. The steel pipe can be adjusted to the central position corresponding to the center position of the annular frame 3, so as to facilitate the bevel processing of the steel pipe. The second fixing frame 1101 can install the cylinder 1102, so that after the cylinder 1102 is started, it pushes the clamping frame 1103 to move to clamp and position the steel pipe, which is beneficial to maintaining the stability of the steel pipe during the processing.

[0132] As an alternative embodiment, the commutation drive mechanism includes:

[0133] The fourth motor 9 is fixed inside the fixed box 7, and a first gear 901 is fixed on the output shaft of the fourth motor 9;

[0134] The rack 902 is fixed at the bottom of the moving box 5, and the rack 902 meshes with the first gear 901;

[0135] The fifth motor 1001 is fixed inside the fixed box 7. The output shaft of the fifth motor 1001 penetrates through the rotating and moving frame 403 and is fixed with a second gear 1002.

[0136] The third gear 1003 is fixed on the side wall of the vertical moving frame 402. The third gear 1003 meshes with the second gear 1002.

[0137] After the fourth motor 9 is started, it can drive the first gear 901 to rotate. The first gear 901 drives the rack 902 engaged therewith to move, so that the rack 902 drives the moving box 5 to move, so that the moving box 5 can perform short-distance reciprocating movement after turning, which is beneficial to fully bevel the edge of the steel pipe. After the fifth motor 1001 is started, it can drive the second gear 1002 to rotate through the output shaft. Under the meshing action of the second gear 1002 and the third gear 1003, the second gear 1002 rolls around the third gear 1003, thereby driving the rotating and moving frame 403 to rotate around the vertical moving frame 402, so as to realize the rotational drive of the rotating and moving frame 403.

[0138] Such as Figure 1 shown in a production system method of an automatic welding device for steel pipe production. A control unit is installed on the bracket 1. The pressure sensors 801 include four corresponding to the four directions of upper right, lower left in the clockwise rotation direction. The production system includes the following steps:

[0139] A1. The control unit obtains the pressure information and pressure change information from the pressure sensors 801. The pressure information includes the upper pressure information, lower pressure information, right pressure information and left pressure information corresponding to the four pressure sensors 801.

[0140] A2. The control unit generates drive control information and steering control information according to the pressure information and pressure change information. The drive control information includes up movement control information, down movement control information, left movement control information and right movement control information. The steering control information includes clockwise steering information and counterclockwise steering information.

[0141] A3. The control unit sends the drive control information to the beveling processing component and the position adjustment component to control the beveling processing component and the position adjustment component to cooperate for beveling processing commutation.

[0142] The pressure sensor 801 generates pressure information after being pressurized. The pressure information includes upper pressure information, lower pressure information, right pressure information, and left pressure information. The pressure sensor 801 located above generates upper pressure information after being pressurized, the pressure sensor 801 located below generates lower pressure information after being pressurized, the pressure sensor 801 located on the right generates right pressure information after being pressurized, and the pressure sensor 801 located on the right generates left pressure information after being pressurized. The pressure sensor 801 sends the generated pressure information to the control unit. The pressure sensor 801 generates pressure change information when the applied pressure increases. For example, originally only the pressure sensor 801 above was pressurized to generate upper pressure information, and now an additional pressure sensor 801 on the right is pressurized to generate right pressure information. At this time, the pressure sensor 801 generates pressure change information simultaneously, and then the pressure sensor 801 sends the pressure change information to the control unit. After obtaining the pressure information and the pressure change information, the control unit generates drive control information and steering control information based on the pressure information and the pressure change information, and sends the drive control information and the steering control information to the bevel processing component and the position adjustment component to control the bevel processing component and the position adjustment component to cooperate for bevel processing commutation.

[0143] As an alternative embodiment, step A2 specifically includes:

[0144] The pressure change information includes constant pressure information and newly added pressure information. The constant pressure information is the pressure information received by the pressure sensor 801 before generating the pressure change information, and the newly added pressure information is the newly received pressure information after the pressure sensor 801 generates the pressure change information;

[0145] The control unit obtains the constant pressure information from the pressure change information;

[0146] When the constant pressure information is upper pressure information, the control unit generates downward movement control information. When the constant pressure information is lower pressure information, the control unit generates upward movement control information. When the constant pressure information is right pressure information, the control unit generates leftward movement control information. When the constant pressure information is left pressure information, the control unit generates rightward movement control information;

[0147] The control unit obtains the newly added pressure information from the pressure change information;

[0148] When the pressure sensor 801 corresponding to the newly added pressure information is in the clockwise direction of the pressure sensor 801 corresponding to the constant pressure information, the control unit generates clockwise steering information. When the pressure sensor 801 corresponding to the newly added pressure information is in the counterclockwise direction of the pressure sensor 801 corresponding to the constant pressure information, the control unit generates counterclockwise steering information;

[0149] The pressure change information includes constant pressure information and newly added pressure information. The constant pressure information is the pressure information received by the pressure sensor 801 before generating the pressure change information, and the newly added pressure information is the newly received pressure information after the pressure sensor 801 generates the pressure change information. For example, originally only the upper pressure sensor 801 in the pressure sensor 801 was pressed to generate upper pressure information, and now a right pressure sensor 801 is added and pressed to generate right pressure information. At this time, the constant pressure information is the upper pressure information, and the newly added pressure information is the right pressure information. At this time, the control unit generates a downward movement control information according to the constant pressure information (which is the upper pressure information at this time). At the same time, the newly added pressure information at this time (which is the right pressure information at this time) is in the clockwise direction of the constant pressure information (which is the upper pressure information at this time), then the control unit generates a clockwise rotation information. Vice versa. Thus, the control unit generates a drive control information (which is the downward movement control information at this time) and a steering control information (which is the clockwise rotation information at this time) to perform movement adjustment control on the bevel processing component and the position adjustment component, so as to realize the automatic recognition of the steel pipe cross-section trajectory by the bevel processing component, and thus automatically move and process along the trajectory of the steel pipe cross-section edge, which is beneficial to improving the convenience and processing efficiency of the steel pipe bevel processing.

[0150] As an optional embodiment, it further includes:

[0151] The control unit obtains the movement path information from the bevel processing component;

[0152] The control unit generates welding path control information according to the movement path information;

[0153] The control unit sends the welding path control information to the welding component to control the welding component to move and weld along the path of the installed movement path information;

[0154] When the bevel processing component automatically recognizes the trajectory of the steel pipe and performs bevel processing along the trajectory, the bevel processing component records and generates a movement trajectory to generate movement path information, and the bevel processing component sends the movement path information to the control unit. After obtaining the movement path information, the control unit generates welding path control information according to the movement path information, and sends the welding path control information to the welding component to control the welding component to move along the movement trajectory of the movement path information to perform welding processing on the steel pipe.

[0155] As an optional embodiment, a vision sensor is fixedly installed on the inclined plane. The control unit includes a user terminal and further includes:

[0156] The control unit obtains the picture information from the vision sensor;

[0157] The control unit obtains the notch comparison information from the user terminal;

[0158] The control unit identifies the notch information in the picture information according to the notch comparison information. When the control unit identifies the notch information, the control unit generates a selection information, and the selection information includes the position information where the notch information is located;

[0159] The control unit generates welding control information according to the selection information, and the welding control information is used to control the welding component to perform dwell welding at the position information corresponding to the selection information;

[0160] The control unit sends the welding control information to the welding component;

[0161] The vision sensor takes a picture and obtains a photo, and sends the photo to the control unit in the form of picture information. The staff inputs notch comparison information from the user terminal, and the user terminal sends the notch comparison information to the control unit, so that the control unit obtains the picture information and the notch comparison information. The control unit compares the picture information with the notch comparison information to identify the notch information in the picture information. Subsequently, the control unit generates selection information, and the selection information includes the position information where the notch information is located. Subsequently, the control unit generates welding control information according to the selection information, and sends the welding control information to the welding component to control the welding component to perform dwell welding at the position information corresponding to the selection information, so that the notch position at the edge of the steel pipe can be subjected to short-term dwell welding, thereby improving the stability of the steel pipe welding.

[0162] As an alternative embodiment, it further includes:

[0163] The control unit obtains the steel pipe cross-section information from the user terminal, and the steel pipe cross-section information includes square pipe information and round pipe information;

[0164] When the steel pipe cross-section information is square pipe information, the control unit does not perform switching control. When the steel pipe cross-section information is round pipe information, the control unit generates round pipe switching control information;

[0165] The control unit sends the round pipe switching control information to the first rotation drive component to control the first rotation drive component to drive the annular frame 3 to rotate for circular steel pipe groove processing;

[0166] The staff inputs the steel pipe cross-section information of the steel pipe from the user terminal, inputs round pipe information when the steel pipe is a round pipe, and inputs square pipe information when the steel pipe is a square pipe. The user terminal sends the steel pipe cross-section information to the control unit. After the control unit obtains the steel pipe cross-section information, if the steel pipe cross-section information is square pipe information, the control unit does not perform switching control. When the steel pipe cross-section information is round pipe information, the control unit generates round pipe switching control information, and sends the round pipe switching control information to the first rotation drive component to control the first rotation drive component to drive the annular frame 3 to rotate for circular steel pipe groove processing.

[0167] Working principle of the present invention: The staff locates and installs the steel pipes to be welded on both sides of the bracket 1 through the feeding component. Subsequently, the feeding component is controlled to push the steel pipes towards the bracket 1, so that the ends of the two steel pipes to be welded contact the bevel processing component. After the bevel processing component is started, it automatically identifies the cross-sectional shape of the steel pipe, enabling the bevel processing component to move and process along the path of the cross-sectional edge of the steel pipe, and perform bevel processing on the cross-section of the steel pipe, thereby automatically realizing the bevel processing of the cross-section of the steel pipe. After the bevel processing of the cross-section of the steel pipe is completed, the feeding component pushes the two steel pipes away from each other by a certain distance. Subsequently, the control switching drive component is started. After the switching drive component is started, it drives the bracket 1 to move, so that the bracket 1 drives the bevel processing component and the welding component to move after moving, causing the bevel processing component to move away from the steel pipe and the welding component to approach the steel pipe. The welding component moves to the position of the bevel processing component. Subsequently, the feeding component pushes the two steel pipes towards each other, so that the ends to be welded of the two steel pipes are in contact, and the bevels on the two steel pipes coincide. Subsequently, the welding component is controlled to start, and the welding component replicates the movement path of the bevel processing component to weld the steel pipe. Therefore, after the bevel processing of the steel pipe, the welding of the steel pipe is seamlessly connected, so that the bevel processed by the bevel processing component can be subsequently used for welding the steel pipe, which is beneficial to avoiding the situation that the bevel position of the steel pipe is contaminated or rusted during the transfer of the steel pipe from the bevel processing to the welding process after storage and transfer, thereby affecting the welding stability of the steel pipe.

[0168] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An automated welding device for steel pipe production, comprising a bracket (1), characterized in that, Further included are: A circular frame (3) rotatably mounted inside a circular hole penetratingly formed in the side wall of the bracket (1) through a first rotation driving assembly; Two vertical moving frames (402) commonly mounted inside the circular frame (3) through a position adjusting assembly, the position adjusting assembly driving the vertical moving frames (402) to perform planar movement adjustment, and rotation moving frames (403) sleeved on the outer circles of the two vertical moving frames (402); A fixed box (7) fixed to the side wall of the rotation moving frame (403); A bevel processing assembly mounted on the side wall of the fixed box (7) for automatically identifying the end cross-sectional shape of a steel pipe and performing bevel processing on the end of the steel pipe before welding according to the cross-sectional shape; A welding assembly mounted on the bracket (1) for driving the welding assembly to move along a shape track for welding according to the end cross-sectional shape of the steel pipe identified by the bevel processing assembly; A switching driving assembly mounted at the bottom of the bracket (1) for driving the bracket (1) to move, thereby driving the bevel processing assembly and the welding assembly to perform switching processing; The bevel processing assembly includes: A moving box (5) slidably mounted at the bottom of the fixed box (7) through a commutation driving mechanism, and an inclined surface is formed on one side of the moving box (5); A grinding disc (6) rotatably mounted on the inclined surface, and a grinding driving assembly for driving the grinding disc (6) to rotate is mounted inside the moving box (5); A straight pipe (8) fixed to the side wall of the fixed box (7) facing away from the rotation moving frame (403), and a plurality of notches are formed in a circumferential array on the side wall of the straight pipe (8); A plurality of pressure sensors (801) arranged in one-to-one correspondence with the notches and fixed inside the notches; The welding assembly includes: A second circular frame (12) rotatably mounted inside a through groove formed in the side wall of the bracket (1) through a second rotation driving assembly; A welding gun (13) mounted on the inner wall of the second circular frame (12) through a telescopic rod; Further included are two feeding assemblies symmetrically arranged on both sides of the bracket (1) for driving the steel pipe to move towards the bracket (1) for bevel processing and welding; The feeding assembly includes: Two lifting platforms (11) placed in alignment on the same side of the bracket (1), and the lifting platform (11) includes a lifting end and a translation end; Two groups of second fixing frames (1101), with two of the second fixing frames (1101) as a group, one group of the second fixing frames (1101) corresponding to one of the lifting platforms (11), and the same group of the second fixing frames (1101) symmetrically fixed to the top of the lifting platform (11); Four cylinders (1102) respectively fixed to the side walls of the four second fixing frames (for driving the steel pipe to move towards the bracket (1) for bevel processing and welding; Two groups of clamping frames (1103), with two of the clamping frames (1103) as a group, the clamping frames (1103) respectively fixed to the end portions of the telescopic rods of the four cylinders (1102), and the same group of the clamping frames (1103) located between the same group of the second fixing frames (1101); The commutation driving mechanism includes: The fourth motor (9) is fixed inside the fixed box (7), and a first gear (901) is fixed to the output shaft of the fourth motor (9); The rack (902) is fixed to the bottom of the moving box (5), and the rack (902) meshes with the first gear (901); The fifth motor (1001) is fixed inside the fixed box (7), and the output shaft of the fifth motor (1001) penetrates through the rotating moving frame (403) and then a second gear (1002) is fixed; The third gear (1003) is fixed to the side wall of the vertical moving frame (402), and the third gear (1003) meshes with the second gear (1002).

2. A production system for an automated welding device used in steel pipe production, applicable to the automated welding device for steel pipe production described in claim 1, characterized in that, A control unit is installed on the bracket (1). The pressure sensors (801) include four corresponding to the four directions of up and down actions. This production system includes the following steps: A1. The control unit obtains the pressure information and pressure change information from the pressure sensors (801). The pressure information includes the upper pressure information, lower pressure information, right pressure information, and left pressure information corresponding to the four pressure sensors (801); A2. The control unit generates drive control information and steering control information according to the pressure information and the pressure change information. The drive control information includes up movement control information, down movement control information, left movement control information, and right movement control information. The steering control information includes clockwise steering information and counterclockwise steering information; A3. The control unit sends the drive control information to the groove processing component and the position adjustment component to control the groove processing component and the position adjustment component to cooperate for groove processing commutation.

3. The production system of an automated welding device for steel pipe production according to claim 2, characterized in that, The specific content of step A2 includes: The pressure change information includes constant pressure information and new pressure information. The constant pressure information is the pressure information received by the pressure sensor (801) before generating the pressure change information, and the new pressure information is the newly added pressure information received by the pressure sensor (801) after generating the pressure change information The control unit obtains the constant pressure information from the pressure change information; When the constant pressure information is the upper pressure information, the control unit generates the down movement control information. When the constant pressure information is the lower pressure information, the control unit generates the up movement control information. When the constant pressure information is the right pressure information, the control unit generates the left movement control information. When the constant pressure information is the left pressure information, the control unit generates the right movement control information; The control unit obtains the new pressure information from the pressure change information; When the pressure sensor (801) corresponding to the new pressure information is located in the clockwise direction of the pressure sensor (801) corresponding to the constant pressure information, the control unit generates the clockwise rotation information. When the pressure sensor (801) corresponding to the new pressure information is located in the counterclockwise direction of the pressure sensor (801) corresponding to the constant pressure information, the control unit generates the counterclockwise rotation information.

4. The production system of an automated welding device for steel pipe production according to claim 2, characterized in that, It further includes: The control unit obtains the movement path information from the bevel processing assembly; The control unit generates welding path control information according to the movement path information; The control unit sends the welding path control information to the welding assembly to control the welding assembly to move and weld along the path of the movement path information.

5. The production system of an automated welding device for steel pipe production according to claim 4, characterized in that, A vision sensor is fixedly installed on the inclined surface. The control unit includes a user terminal and further includes: The control unit obtains the picture information from the vision sensor; The control unit obtains the notch comparison information from the user terminal; The control unit identifies the notch information in the picture information according to the notch comparison information. When the control unit identifies the notch information, the control unit generates a selection information, and the selection information includes the position information where the notch information is located; The control unit generates welding control information according to the selection information, and the welding control information is used to control the welding assembly to stay and weld at the position information corresponding to the selection information; The control unit sends the welding control information to the welding assembly.

6. The production system of an automated welding device for steel pipe production according to claim 5, characterized in that, [[ID=eleven]]It further includes: The control unit obtains the steel pipe cross-section information from the user terminal, and the steel pipe cross-section information includes square pipe information and round pipe information; When the steel pipe cross-section information is the square pipe information, the control unit does not perform switching control. When the steel pipe cross-section information is the round pipe information, the control unit generates round pipe switching control information; The control unit sends the round pipe switching control information to the first rotation driving assembly to control the first rotation driving assembly to drive the annular frame (3) to rotate for bevel processing of circular steel pipes.

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