Automatic deviation correcting device for pipe forming

Abstract

The present application relates to a kind of pipe forming automatic deviation correction device, cooperate with pipe forming device, pipe forming device includes n group adjusting device;Pipe forming automatic deviation correction device includes industrial control system and n group deviation correction mechanism;Each group deviation correction mechanism includes 1 left upper and lower adjustment servo motor, 1 right upper and lower adjustment servo motor, 1 left and right adjustment servo motor, 1 vertical detection CCD industrial camera, 1 horizontal detection CCD industrial camera;N group deviation correction mechanism and n group adjusting device one-to-one correspondence;Vertical detection CCD industrial camera is used to detect whether the bilateral / center line direction of pipe vertical forward direction is offset;Horizontal detection CCD industrial camera is used to detect whether the horizontal direction of pipe is offset;Industrial control system is used to receive the signal of CCD industrial camera, and send signal to servo motor and correct the deviation of pipe.The product of the present application changes technician control mechanical equipment into digital control machinery, and provides foundation for improving industry digital management.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pipe forming, and relates to a pipe forming automatic deviation rectifying device. BACKGROUND

[0002] In the prior art, pipe forming machines need to be manually operated by experienced technicians. However, in the process of use, mechanical factors (wear of mechanical parts, wear of forming dies) / pipe forming speed (the faster the pipe forming speed, the higher the probability of pipe deviation, and the greater the control difficulty) / material factors (material width, material thickness, material hardness) can cause the center line of the weld of the formed pipe to deviate (the center line of the weld of the pipe is a line located in the middle of the left edge and the right edge of the length section of the pipe), affecting the welding quality and reducing the production efficiency, thereby producing waste pipe.

[0003] In order to solve the above problems, pipe technicians need to continuously pay attention to the forming conditions and welding conditions of the pipe forming machine. Basically, manual adjustment is adopted, and the pipe technicians observe by hand feeling and eyes, and measure and adjust by using measuring tools. Due to the technical factors of the pipe technicians, when the pipe technicians discover the deviation, it is already too late, which directly leads to the scrap of the overlong pipe (the scrap of the overlong pipe refers to the metal pipe with a length of tens of meters to thousands of meters, which cannot be broken or the weld cannot be deviated or cracked, otherwise it is waste pipe).

[0004] Therefore, it is of great significance to study a pipe forming automatic deviation rectifying device to automatically rectify in real time and online to solve the problem of untimely manual adjustment. SUMMARY

[0005] The application aims to solve the problems in the prior art and provide a pipe forming automatic deviation rectifying device.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the application is as follows:

[0007] The pipe forming automatic deviation rectifying device is used in cooperation with a pipe forming device.

[0008] The pipe forming device comprises n sets of adjusting devices, and n is a positive integer in the interval [4, 12].

[0009] Each set of adjusting devices comprises an upper forming wheel, a lower forming wheel, a left forming wheel and a right forming wheel.

[0010] The upper forming wheel is sleeved on an upper horizontal shaft. The part of the upper horizontal shaft located on the left side of the upper forming wheel is connected with a first moving block, and the part of the upper horizontal shaft located on the right side of the upper forming wheel is connected with a second moving block.

[0011] The left forming wheel is sleeved on a left vertical shaft, and the right forming wheel is sleeved on a right vertical shaft. The left vertical shaft and the right vertical shaft are installed on a horizontal adjusting shaft.

[0012] The pipe forming automatic deviation correcting device comprises an industrial control system and n sets of deviation correcting mechanisms.

[0013] Each set of deviation correcting mechanisms comprises one left up-down adjusting servo motor, one right up-down adjusting servo motor, one left-right adjusting servo motor, one vertical detection CCD industrial camera and one horizontal detection CCD industrial camera.

[0014] The n sets of deviation correcting mechanisms correspond to n sets of adjusting devices one by one, and the corresponding deviation correcting mechanism and adjusting device comprise:

[0015] The first moving slider is slidably connected with the left up-down adjusting servo motor through a screw rod, and the left up-down adjusting servo motor is used for controlling the up-down movement of the first moving slider, so that the pressure of the upper horizontal shaft changes by increasing or decreasing the pressure, and finally the vertical inclination angle of the upper forming wheel changes.

[0016] The second moving slider is slidably connected with the right up-down adjusting servo motor through a screw rod, and the right up-down adjusting servo motor is used for controlling the up-down movement of the second moving slider, so that the pressure of the upper horizontal shaft changes by increasing or decreasing the pressure, and finally the vertical inclination angle of the upper forming wheel changes.

[0017] The sliding direction of all the sliding connections is the vertical direction; the left-right adjusting servo motor is connected with the horizontal adjusting shaft, and is used for controlling the forward rotation or reverse rotation of the horizontal adjusting shaft, so that the distance between the left vertical shaft and the right vertical shaft changes, and finally the distance between the left forming wheel and the right forming wheel changes.

[0018] The vertical detection CCD industrial camera faces the length section between the upper forming wheel and the lower forming wheel to be fed with the pipe, is used for monitoring the line I of the length section, and sends a signal I to the industrial control system when the deviation σ1 between the line I and a line a in the monitoring picture exceeds a threshold value i; the line I is a line parallel to the left edge and the right edge of the length section of the pipe and located in the middle of the two edges, the line a is a preset horizontal line on the vertical detection CCD industrial camera, and the lines a of the vertical detection CCD industrial cameras of the n sets of deviation correcting mechanisms are collinear; the industrial control system is used for controlling the left up-down adjusting servo motor and / or the right up-down adjusting servo motor to work until the deviation σ1 does not exceed the threshold value i when the signal I is received, and the left and right positions of the upper forming wheel change during the working process of the left up-down adjusting servo motor and / or the right up-down adjusting servo motor, so as to cause the line I to be corrected to the left or to the right.

[0019] The horizontal detection CCD industrial camera faces a length section between the upper forming wheel and the lower forming wheel to be fed with the pipe, is used for monitoring line II of the length section, and sends a signal II to the industrial control system when deviation σ2 of line II and line b in the monitoring picture exceeds threshold value j; line II is a connecting line of the highest point of the length section of the pipe, line b is a preset horizontal line on the horizontal detection CCD industrial camera, and lines b of the horizontal detection CCD industrial cameras of the n groups of correction mechanisms are collinear; the industrial control system is further used for controlling the left and right adjusting servo motors to work until the deviation σ2 does not exceed the threshold value j when the signal II is received, the distance between the left forming wheel and the right forming wheel changes in the working process of the left and right adjusting servo motors, and then the degree of curling of the pipe changes, so that line II is corrected downward or upward.

[0020] As a preferred technical solution:

[0021] The pipe forming automatic correction device as described above, n is 8, and the value of n is selected according to the size of the pipe diameter; the value of n is large when the pipe diameter is small, and the value of n is large when the pipe diameter is large.

[0022] The pipe forming automatic correction device as described above, the threshold value i and the threshold value j are both 0.2 mm.

[0023] The pipe forming automatic correction device as described above, in each adjusting device, the lower forming wheel is sleeved on the lower horizontal shaft; the part of the lower horizontal shaft located on the left side of the lower forming wheel is connected with the left machine base, and the part of the lower horizontal shaft located on the right side of the lower forming wheel is connected with the right machine base.

[0024] The pipe forming automatic correction device as described above, in the corresponding correction mechanism and adjusting device, the left upper and lower adjusting servo motor is installed above the left machine base, and the right upper and lower adjusting servo motor is installed above the right machine base.

[0025] The pipe forming automatic correction device as described above, in the corresponding correction mechanism and adjusting device, the vertical detection CCD industrial camera is fixed on a horizontal plate, the horizontal plate is supported by the left machine base and the right machine base, and is fixedly connected with the left machine base and the right machine base.

[0026] The pipe forming automatic correction device as described above, the vertical detection CCD industrial cameras of the n groups of correction mechanisms are arranged at equal intervals, and the horizontal detection CCD industrial cameras are arranged at equal intervals.

[0027] The pipe forming automatic correction device as described above, in each adjusting device, the horizontal adjusting shaft is supported by the mold machine base.

[0028] The pipe forming automatic correction device as described above, in the corresponding correction mechanism and adjusting device, the left and right adjusting servo motors are installed on the side of the mold machine base.

[0029] Beneficial effects

[0030] The automatic deviation correction device for pipe forming of the present invention transforms the mechanical equipment controlled by technicians in the pipe manufacturing industry into intelligent equipment that integrates digital control and intelligent automation, providing a solid foundation for improving and transforming the industry's digital management. Attached Figure Description

[0031] Fig. 1 A schematic diagram illustrating the use of an automatic deviation correction device in conjunction with a pipe forming device;

[0032] Fig. 2 A partial schematic diagram showing the automatic deviation correction device for pipe forming in conjunction with the pipe forming device;

[0033] Among them, 1.1-left machine base, 1.2-right machine base, 2.1-first moving slider, 2.2-second moving slider, 3.1-upper horizontal axis, 3.2-lower horizontal axis, 4.1-upper forming wheel, 4.2-lower forming wheel, 5.1-left vertical axis, 5.2-right vertical axis, 6.1-left forming wheel, 6.2-right forming wheel, 7.1-left up / down adjustment servo motor, 7.2-right up / down adjustment servo motor, 8-left / right adjustment servo motor, 9-vertical detection CCD industrial camera, 10-horizontal detection CCD industrial camera, 11-mold base, 12-horizontal adjustment axis, 13-machine platform, 14-industrial control system, 15-touch screen. Detailed Implementation

[0034] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0035] An automatic deviation correction device for pipe forming, used in conjunction with a pipe forming device;

[0036] like Figs. 1-2 As shown, the pipe forming device includes a machine base 13 and 8 sets of adjustment devices. The automatic pipe forming correction device includes an industrial control system 14 (manual interaction relies on a touch screen 15) and 8 sets of correction mechanisms; the 8 sets of correction mechanisms correspond one-to-one with the 8 sets of adjustment devices.

[0037] In the corresponding adjustment device and correction mechanism:

[0038] Each set of adjustment devices includes an upper forming wheel 4.1, a lower forming wheel 4.2, a left forming wheel 6.1, and a right forming wheel 6.2;

[0039] The upper forming wheel 4.1 is sleeved on the upper horizontal shaft 3.1; the part of the upper horizontal shaft 3.1 located at the left side of the upper forming wheel 4.1 is connected with the first moving slider 2.1, and the part of the upper horizontal shaft 3.1 located at the right side of the upper forming wheel 4.1 is connected with the second moving slider 2.2;

[0040] The lower forming wheel 4.2 is sleeved on the lower horizontal shaft 3.2; the part of the lower horizontal shaft 3.2 located at the left side of the lower forming wheel 4.2 is connected with the left base 1.1, and the part of the lower horizontal shaft 3.2 located at the right side of the lower forming wheel 4.2 is connected with the right base 1.2;

[0041] The left forming wheel 6.1 is sleeved on the left vertical shaft 5.1, and the right forming wheel 6.2 is sleeved on the right vertical shaft 5.2; the left vertical shaft 5.1 and the right vertical shaft 5.2 are installed on the horizontal adjusting shaft 12, and the horizontal adjusting shaft 12 is supported by the mold base 11;

[0042] Each set of deviation rectifying mechanism comprises one left up-down adjusting servo motor 7.1, one right up-down adjusting servo motor 7.2, one left-right adjusting servo motor 8, one vertical detection CCD industrial camera 9 and one horizontal detection CCD industrial camera 10; the manufacturers of the vertical detection CCD industrial camera and the horizontal detection CCD industrial camera are both BASLER in Germany, and the models are both acA640-120gc;

[0043] The left up-down adjusting servo motor 7.1 is installed above the left base 1.1, and the first moving slider 2.1 is slidably connected with the left up-down adjusting servo motor 7.1 through a screw rod;

[0044] The right up-down adjusting servo motor 7.2 is installed above the right base 1.2, and the second moving slider 2.2 is slidably connected with the right up-down adjusting servo motor 7.2 through a screw rod;

[0045] The sliding directions of all the sliding connections are vertical directions;

[0046] The left-right adjusting servo motor 8 is installed at the side of the mold base 11 and connected with the horizontal adjusting shaft 12;

[0047] The vertical detection CCD industrial camera 9 is fixed on a horizontal plate, and the horizontal plate is supported by and fixedly connected with the left base 1.1 and the right base 1.2;

[0048] The vertical detection CCD industrial camera 9 faces the length section between the upper forming wheel 4.1 and the lower forming wheel 4.2 where the pipe to be fed in, is used to monitor the line I of the length section, and when the deviation σ1 between the line I and the line a in the monitoring picture exceeds the threshold value 0.2 mm, a signal I is sent to the industrial control system 14; the line I is a line parallel to the left edge and the right edge of the length section of the pipe and located in the middle of the two edges, and the line a is a preset horizontal line on the vertical detection CCD industrial camera 9, and the lines a of the 8 sets of vertical detection CCD industrial cameras 9 are collinear; the industrial control system 14 is used to control the left upper and lower adjusting servo motor 7.1 and / or the right upper and lower adjusting servo motor 7.2 to work until the deviation σ1 does not exceed the threshold value 0.2 mm when the signal I is received;

[0049] The horizontal detection CCD industrial camera 10 faces the length section between the upper forming wheel 4.1 and the lower forming wheel 4.2 where the pipe to be fed in, is used to monitor the line II of the length section, and when the deviation σ2 between the line II and the line b in the monitoring picture exceeds the threshold value 0.2 mm, a signal II is sent to the industrial control system 14; the line II is a line connecting the highest points of the length section of the pipe, and the line b is a preset horizontal line on the horizontal detection CCD industrial camera 10, and the lines b of the 8 sets of horizontal detection CCD industrial cameras 10 are collinear; the industrial control system 14 is also used to control the left and right adjusting servo motor 8 to work until the deviation σ2 does not exceed the threshold value 0.2 mm when the signal II is received;

[0050] The 8 vertical detection CCD industrial cameras 9 are arranged at equal intervals, and the 8 horizontal detection CCD industrial cameras 10 are arranged at equal intervals.

[0051] Specific use process: before starting to make pipes, the standard-compliant lines a and b are preset; the line a is a preset horizontal line on the vertical detection CCD industrial camera 9, and the line b is a preset horizontal line on the horizontal detection CCD industrial camera 10; the setting method of the line a is that the vertical detection CCD industrial camera 9 is installed between the left upper and lower adjusting servo motor 7.1 and the right upper and lower adjusting servo motor 7.2, and the 8 vertical detection CCD industrial cameras and the 8 sets of adjusting devices are connected at multiple points to form the line a; the setting method of the line b is that the horizontal detection CCD industrial camera 10 is installed between the left and right adjusting servo motor 8 and the mold base 11, and the 8 horizontal detection CCD industrial cameras, the 8 left and right adjusting servo motors 8, and the 8 mold bases 11 are connected at multiple points to form the line b;

[0052] Program setting: in the power-on state, the 8 sets of vertical detection CCD industrial cameras 9 automatically detect the left and right deviation values of the line I when the pipe advances, and the 8 sets of horizontal detection CCD industrial cameras 10 detect the high and low deviation values of the line II; when the detection is completed and everything is normal, the buzzer or the indicator light reminds that the welding machine can be started for welding, and the welding machine is directly started for the pipe-making production process after being started;

[0053] In the pipe manufacturing process, each group of adjusting devices and the correction mechanism:

[0054] When the vertical detection CCD industrial camera 9 monitors that line I deviates more than the threshold value 0.2 mm to the left compared with line a (the industrial camera collects real-time data, and when the collected data exceeds the program set data (value), the industrial control system 14 program judges whether the deviation), the vertical detection CCD industrial camera 9 sends a signal I to the industrial control system 14, and the industrial control system 14 controls the rotation of the left upper and lower adjusting servo motor 7.1 and the right upper and lower adjusting servo motor 7.2, the left upper and lower adjusting servo motor 7.1 drives the first moving block 2.1 to move upward or downward, the right upper and lower adjusting servo motor 7.2 drives the second moving block 2.2 to move upward or downward, thereby increasing or reducing the pressure of the upper horizontal shaft 3.1 to the right or to the left, and finally the left and right positions of the upper forming wheel 4.1 change; thereby causing line I to correct to the right, so that the deviation σ2 does not exceed the threshold value 0.2 mm;

[0055] In the industrial control system 14: program setting, 1 360-degree circle is 0.1 mm, if the deviation threshold value reaches 0.2 mm, it is equal to 2 360-degree circles, at this time the industrial control system 14 instructs the left upper and lower adjusting servo motor 7.1 to rotate 2 circles through the screw, that is, to correct 0.2 mm, the industrial control system 14 has automatic and manual functions, and manual intervention can also be performed in the setting interface, and the corresponding function up and down keys are pressed for fine adjustment, and one key is 0.1 mm;

[0056] When the horizontal detection CCD industrial camera 10 monitors that line II deviates more than the threshold value 0.2 mm upward compared with line b, the horizontal detection CCD industrial camera 10 sends a signal I to the industrial control system 14, and the industrial control system 14 controls the rotation of the left and right adjusting servo motor 8, thereby increasing the distance between the left vertical shaft 5.1 and the right vertical shaft 5.2, thereby causing the degree of curling of the pipe material to become smaller, causing line II to correct downward, so that the deviation σ2 does not exceed the threshold value 0.2 mm;

[0057] When the horizontal detection CCD industrial camera 10 monitors that line II deviates more than the threshold value 0.2 mm downward compared with line b, the horizontal detection CCD industrial camera 10 sends a signal I to the industrial control system 14, and the industrial control system 14 controls the rotation of the left and right adjusting servo motor 8, thereby reducing the distance between the left vertical shaft 5.1 and the right vertical shaft 5.2, thereby causing the degree of curling of the pipe material to become larger, causing line II to correct upward, so that the deviation σ2 does not exceed the threshold value 0.2 mm.

[0058] One left and right adjusting servo motor 8 controls the left forming wheel 6.1 and the right forming wheel 6.2 in a group of adjusting devices, and there are 8 groups of such left and right adjusting servo motors 8, each group is an independent group, which group produces deviation, which group sends a signal to the industrial control system 14, and the industrial control system 14 returns the instruction to correct the deviation.

Claims

1. An automatic deviation correction device for pipe forming, characterized in that, Used in conjunction with pipe forming equipment; The pipe forming device includes n sets of adjusting devices, where n is a positive integer in the interval [4, 12]. Each set of adjustment devices includes an upper forming wheel (4.1), a lower forming wheel (4.2), a left forming wheel (6.1), and a right forming wheel (6.2). The upper forming wheel (4.1) is fitted onto the upper horizontal shaft (3.1); the part of the upper horizontal shaft (3.1) located to the left of the upper forming wheel (4.1) is connected to the first movable slider (2.1), and the part of the upper horizontal shaft (3.1) located to the right of the upper forming wheel (4.1) is connected to the second movable slider (2.2); The lower forming wheel (4.2) is fitted onto the lower horizontal shaft (3.2); the part of the lower horizontal shaft (3.2) located to the left of the lower forming wheel (4.2) is connected to the left machine base (1.1), and the part of the lower horizontal shaft (3.2) located to the right of the lower forming wheel (4.2) is connected to the right machine base (1.2); The left forming wheel (6.1) is fitted onto the left vertical shaft (5.1), and the right forming wheel (6.2) is fitted onto the right vertical shaft (5.2); the left vertical shaft (5.1) and the right vertical shaft (5.2) are mounted on the horizontal adjustment shaft (12); The automatic deviation correction device for pipe forming includes an industrial control system and n sets of deviation correction mechanisms; Each correction mechanism includes one left-up-down adjustment servo motor (7.1), one right-up-down adjustment servo motor (7.2), one left-right adjustment servo motor (8), one vertical detection CCD industrial camera (9), and one horizontal detection CCD industrial camera (10). There is a one-to-one correspondence between n sets of correction mechanisms and n sets of adjustment devices. The corresponding correction mechanisms and adjustment devices include: The first moving slider (2.1) is slidably connected to the left up and down adjustment servo motor (7.1) via a screw; the second moving slider (2.2) is slidably connected to the right up and down adjustment servo motor (7.2) via a screw; the sliding direction of all sliding connections is vertical; the left and right adjustment servo motor (8) is connected to the horizontal adjustment shaft (12); The vertical detection CCD industrial camera (9) faces the length segment between the upper forming roller (4.1) and the lower forming roller (4.2) of the pipe to be fed in. It is used to monitor line I of the length segment and send signal I to the industrial control system when the deviation σ1 between line I and line a in the monitoring screen exceeds the threshold i. Line I is a line parallel to the left and right edges of the length segment of the pipe and located in the middle of the two. Line a is a horizontal line preset on the vertical detection CCD industrial camera (9). The lines a of the vertical detection CCD industrial cameras (9) of n sets of correction mechanisms are collinear. The industrial control system is used to control the left up and down adjustment servo motor (7.1) and / or the right up and down adjustment servo motor (7.2) to work until the deviation σ1 does not exceed the threshold i when the signal I is received. The horizontal detection CCD industrial camera (10) faces the length segment between the upper forming roller (4.1) and the lower forming roller (4.2) of the pipe to be fed in. It is used to monitor line II of the length segment and send signal II to the industrial control system when the deviation σ2 between line II and line b in the monitoring screen exceeds the threshold j. Line II is the line connecting the highest point of the length segment of the pipe, and line b is a horizontal line preset on the horizontal detection CCD industrial camera (10). The lines b of the horizontal detection CCD industrial cameras (10) of n sets of correction mechanisms are collinear. The industrial control system is also used to control the left and right adjustment servo motor (8) to work until the deviation σ2 does not exceed the threshold j when signal II is received. Both threshold i and threshold j are 0.2 mm.

2. The automatic deviation correction device for pipe forming according to claim 1, characterized in that, n is 8.

3. The automatic deviation correction device for pipe forming according to claim 1, characterized in that, In the corresponding correction mechanism and adjustment device, the left up-down adjustment servo motor (7.1) is installed above the left base (1.1), and the right up-down adjustment servo motor (7.2) is installed above the right base (1.2).

4. The automatic deviation correction device for pipe forming according to claim 1, characterized in that, In the corresponding correction mechanism and adjustment device, the vertical detection CCD industrial camera (9) is fixed on a horizontal plate, which is supported by the left base (1.1) and the right base (1.2) and is fixedly connected to the two.

5. The automatic deviation correction device for pipe forming according to claim 1, characterized in that, The vertical detection CCD industrial cameras (9) of the n-group correction mechanism are arranged at equal intervals, and the horizontal detection CCD industrial cameras (10) are arranged at equal intervals.

6. The automatic deviation correction device for pipe forming according to claim 1, characterized in that, In each set of adjustment devices, the horizontal adjustment shaft (12) is supported by the mold base (11).

7. The automatic deviation correction device for pipe forming according to claim 6, characterized in that, In the corresponding correction mechanism and adjustment device, the left and right adjustment servo motor (8) is installed on the side of the mold base (11).

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