An automatic cutting and blanking device for sucker rods

Abstract

The present invention is applicable to the technical field of sucker rod processing, and particularly relates to an automatic cutting and blanking device for sucker rods. The device includes: a base, a movable mounting seat, and a fixed mounting seat. Clamping mechanisms are rotatably connected to both the movable mounting seat and the fixed mounting seat. A laser gun head and a temperature measuring probe are arranged on the base. An end plate is fixedly arranged at the end of the base, and a distance sensor is fixedly arranged on the end plate. A second motor is fixedly mounted on the base, and the output shaft of the second motor is fixedly connected to a threaded rod. The heating rate of the workpiece is detected by the temperature measuring probe, and the rotation speed of the workpiece is controlled according to the heating rate. The present invention can, during the processing, detect the heating rate of the current workpiece by detecting the heating rate, and then control the rotation of the workpiece. The molten material generated by the cutting of the workpiece will fly out along the tangent under the action of centrifugal force, avoiding dripping into the inner cavity of the workpiece, and subsequent cleaning of the inner cavity of the workpiece is not required, improving the processing efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of sucker rod processing, and particularly relates to an automatic cutting and blanking device for sucker rods. Background Art

[0002] Sucker rods are one of the indispensable equipment in the process of oil extraction. They are mainly used to connect the surface pumping unit with the downhole oil pump, transmit the surface power to the downhole, and thus realize the extraction of crude oil. It is usually a long and thin steel rod, which can be composed of multiple sections of sucker rods connected according to the depth of the oil well. Sucker rods need to withstand complex mechanical conditions during operation, including tension, compression, and wear, etc. Therefore, there are relatively high requirements for their material strength and durability. In order to improve efficiency and adapt to different operating environments, modern sucker rods, in addition to traditional steel sucker rods, also include lightweight and high-strength sucker rods made of composite materials.

[0003] For hollow sucker rods, during laser cutting, due to the melting of the raw material, the melted material will enter the interior of the sucker rod, affecting the inner diameter size of the sucker rod, and subsequent cleaning is required, which increases the processing procedures and affects the production efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic cutting and blanking device for sucker rods, aiming to solve the problem that during laser cutting, due to the melting of the raw material, the melted material will enter the interior of the sucker rod, affecting the inner diameter size of the sucker rod, and subsequent cleaning is required, which increases the processing procedures and affects the production efficiency.

[0005] The present invention is realized as follows. An automatic cutting and blanking device for sucker rods, the device includes:

[0006] A base, on which a set of movable mounting seats and multiple sets of fixed mounting seats are fixedly arranged. Clamping mechanisms are rotatably connected to both the movable mounting seats and the fixed mounting seats, and the clamping mechanisms are used for clamping workpieces. A laser generator is installed on the base through a lifting component. The laser generator includes a laser gun head and a temperature measuring probe, and the temperature measuring probe is used for measuring the temperature of the welding point. An end plate is fixedly arranged at the end of the base, and a distance sensor is fixedly arranged on the end plate. A second motor is fixedly installed on the base, the output shaft of the second motor is fixedly connected with a threaded rod, and the movable mounting seat is connected to the threaded rod through a threaded hole. The rotation speed of the workpiece is controlled according to the heating rate detected by the temperature measuring probe.

[0007] Preferably, the clamping mechanism includes a mounting ring. Two guide sleeves are fixedly installed on the inner wall of the mounting ring. The two guide sleeves are symmetrically arranged inside the mounting ring. A guide post is slidably arranged in each guide sleeve. The two guide posts are respectively fixedly connected to a first V-shaped plate and a second V-shaped plate. Support sleeves are fixedly installed on both the first V-shaped plate and the second V-shaped plate. Magnets are fixedly installed on the support sleeves. Electromagnets are fixedly installed on the guide sleeves. Avoidance grooves are arranged on both the first V-shaped plate and the second V-shaped plate. The avoidance grooves on the first V-shaped plate and the second V-shaped plate are arranged crosswise. The first V-shaped plate and the second V-shaped plate are respectively fixedly connected to a first bracket and a second bracket. Counterweight balls are fixedly installed on both the first bracket and the second bracket. Rack bars are arranged on both the first bracket and the second bracket. A rotating shaft is also rotatably arranged on the inner wall of the mounting ring. A third gear is fixedly installed on the rotating shaft. The third gear meshes with the rack bars on both the first bracket and the second bracket. A first motor is fixedly arranged on the fixed mounting seat. The output shaft of the first motor is fixedly connected to a first gear. A second gear is fixedly connected to the mounting ring on the fixed mounting seat. The second gear meshes with the first gear.

[0008] Preferably, the lifting assembly includes a guiding assembly and a telescopic rod. The guiding assembly is fixedly installed on the base. The telescopic rod is fixedly installed on the base. The guiding assembly and the telescopic rod are fixedly connected to a mounting plate at the end far from the base. The laser generator is fixedly installed on the mounting plate.

[0009] Preferably, two material blocking plates are fixedly installed on the base. The material blocking plates are fixedly arranged on both sides of the laser gun head.

[0010] Preferably, a rotating shaft is fixedly installed on the base. A rotating sleeve is rotatably installed on the rotating shaft. The rotating sleeve is connected to the rotating shaft through a torsion spring. A material guiding plate is fixedly connected to the rotating sleeve.

[0011] Preferably, a protective cover is arranged above the base.

[0012] Preferably, a guide rail is arranged on the base. A guide groove is arranged at the bottom of the movable mounting seat. The guide rail is arranged in the guide groove.

[0013] An automatic cutting and blanking device for sucker rods provided by the present invention can, by arranging a temperature measuring probe, detect the heating rate of the current workpiece by detecting the heating rate during the processing, and then control the rotation of the workpiece. The molten material generated by the cutting of the workpiece will fly out along the tangent under the action of centrifugal force, avoiding dripping into the inner cavity of the workpiece. Subsequently, it is not necessary to clean the inner cavity of the workpiece, improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the first overall structure of an automatic cutting and blanking device for sucker rods provided by an embodiment of the present invention;

[0015] Figure 2The second overall structural schematic diagram of an automatic cutting and blanking device for sucker rods provided by an embodiment of the present invention;

[0016] Figure 3 The third overall structural schematic diagram of an automatic cutting and blanking device for sucker rods provided by an embodiment of the present invention;

[0017] Figure 4 The first perspective schematic diagram of the clamping mechanism provided by an embodiment of the present invention;

[0018] Figure 5 The second perspective schematic diagram of the clamping mechanism provided by an embodiment of the present invention.

[0019] In the drawings: 1, base; 2, fixed mounting seat; 3, movable mounting seat; 4, first gear; 5, first motor; 6, mounting plate; 7, guiding assembly; 8, telescopic rod; 9, material blocking plate; 10, rotating sleeve; 11, material guiding plate; 12, end plate; 13, distance sensor; 14, second motor; 15, threaded rod; 16, laser generator; 17, laser gun head; 18, mounting ring; 19, guiding sleeve; 20, electromagnet; 21, guiding column; 22, supporting sleeve; 23, magnetic block; 24, first V-shaped plate; 25, second V-shaped plate; 26, first bracket; 27, second bracket; 28, counterweight ball; 29, second gear; 30, third gear. Detailed implementation manners

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0022] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , an automatic cutting and blanking device for sucker rods provided by an embodiment of the present invention is shown. The device includes:

[0023] Base 1, on which a set of movable mounting seats 3 and multiple sets of fixed mounting seats 2 are fixedly arranged. Clamping mechanisms are rotatably connected to both the movable mounting seats 3 and the fixed mounting seats 2, and the clamping mechanisms are used to clamp workpieces. A laser generator 16 is installed on the base 1 through a lifting component. The laser generator 16 includes a laser gun head 17 and a temperature measuring probe. The temperature measuring probe is used to measure the temperature of the welding point. An end plate 12 is fixedly arranged at the end of the base 1, and a distance sensor 13 is fixedly arranged on the end plate 12. A second motor 14 is fixedly installed on the base 1, and the output shaft of the second motor 14 is fixedly connected to a threaded rod 15. The movable mounting seat 3 is connected to the threaded rod 15 through a threaded hole. The temperature measuring probe is used to detect the heating rate of the workpiece, and the rotation speed of the workpiece is controlled according to the heating rate.

[0024] In an embodiment of the present invention, during cutting, the whole workpiece is placed into multiple sets of clamping mechanisms, and the clamping mechanisms are used to fix the workpiece. The movable mounting base 3 can drive the workpiece to move axially, thereby controlling the feeding of the workpiece. When the end of the workpiece reaches the position where the distance sensor 13 is located, the value detected by the distance sensor 13 will change. When the value detected by the distance sensor 13 is lower than the preset value, it is determined that the current workpiece has passed the distance sensor 13. The detection direction of the distance sensor 13 passes through the axis of the workpiece. Therefore, the diameter of the workpiece can be determined according to the detection value of the distance sensor 13, and then the laser gun head 17 is controlled to move to the corresponding height. Starting from the time when the workpiece is detected, the moving duration of the movable mounting base 3 is recorded. According to the running speed of the second motor 14, the moving distance of the movable mounting base 3 is calculated. This moving distance is the moving distance of the workpiece, and thus the cutting length of the current workpiece is determined accordingly. When reaching the cutting position of the workpiece, the movable mounting base 3 stops moving, and the clamping mechanism fixes the workpiece. At this time, the laser gun head 17 heats the workpiece at a fixed point according to the preset power. After heating for a preset duration, such as heating for 5 seconds, the heating stops, and the workpiece is controlled to move a preset distance along its axis. During this process, the temperature is continuously monitored by the temperature measuring probe. Taking the moving distance as the abscissa and the temperature value as the ordinate, a temperature change curve is constructed. Based on the temperature change curve, a preset database is queried to determine the type of the current material, and then the corresponding cutting parameters are queried. The cutting parameters at least include the laser power and the minimum rotational speed of the workpiece. The cutting parameters are converted according to the diameter of the workpiece. For example, if the minimum rotational speed of the workpiece is n, the diameter of the corresponding standard workpiece is D, and the diameter of the current workpiece is D1, then the corresponding minimum rotational speed of the workpiece is nD1 / D, and the laser power P remains unchanged. It is also possible to change the laser power while keeping the minimum rotational speed of the workpiece unchanged, or both can be changed simultaneously, and it is necessary to satisfy D1:D = P1n1:Pn, where P1 is the actual power and n1 is the actual rotational speed. The workpiece is cut according to the calculated actual power and actual rotational speed. During this process, the laser continuously heats the workpiece, and the workpiece gradually melts. Under the action of the centrifugal force, the melted material will fly out along the tangent direction of the workpiece at the laser irradiation position, thereby preventing the material from dripping into the workpiece interior.

[0025] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, as a preferred embodiment of the present invention, the clamping mechanism includes a mounting ring 18. Two guide sleeves 19 are fixedly installed on the inner wall of the mounting ring 18. The two guide sleeves 19 are symmetrically arranged inside the mounting ring 18. A guide post 21 is slidably arranged in the guide sleeve 19. The two guide posts 21 are respectively fixedly connected to a first V-shaped plate 24 and a second V-shaped plate 25. Support sleeves 22 are fixedly installed on both the first V-shaped plate 24 and the second V-shaped plate 25. Magnets 23 are fixedly installed on the support sleeves 22. Electromagnets 20 are fixedly installed on the guide sleeves 19. Avoidance grooves are provided on both the first V-shaped plate 24 and the second V-shaped plate 25. The avoidance grooves on the first V-shaped plate 24 and the second V-shaped plate 25 are arranged in a cross manner. The first V-shaped plate 24 and the second V-shaped plate 25 are respectively fixedly connected to a first bracket 26 and a second bracket 27. Counterweight balls 28 are fixedly installed on both the first bracket 26 and the second bracket 27. Rack teeth are provided on both the first bracket 26 and the second bracket 27. A rotating shaft is also rotatably arranged on the inner wall of the mounting ring 18. A third gear 30 is fixedly installed on the rotating shaft. The third gear 30 meshes with the rack teeth on both the first bracket 26 and the second bracket 27. A first motor 5 is fixedly arranged on the fixed mounting seat 2. The output shaft of the first motor 5 is fixedly connected to a first gear 4. A second gear 29 is fixedly connected to the mounting ring 18 on the fixed mounting seat 2. The second gear 29 meshes with the first gear 4.

[0026] In this embodiment, when the workpiece is placed into the clamping mechanism, the workpiece is located between the first V-shaped plate 24 and the second V-shaped plate 25. Since the first V-shaped plate 24 and the second V-shaped plate 25 are provided with avoidance grooves, the first V-shaped plate 24 and the second V-shaped plate 25 can cross each other. The first V-shaped plate 24 and the second V-shaped plate 25 cooperate to clamp workpieces with different diameters. In order to keep the axis of the workpiece passing through the center of the mounting ring 18, the first bracket 26 and the second bracket 27 are provided. The rack teeth on the first bracket 26 and the second bracket 27 are simultaneously meshed with the third gear 30. Therefore, the first bracket 26 and the second bracket 27 will move synchronously. After the workpiece is placed, a magnetic field is generated by the electromagnet 20 to repel the magnet 23. The magnet 23 drives the first V-shaped plate 24 and the second V-shaped plate 25 to approach each other, realizing the clamping of the workpiece. The mounting ring 18 is rotatably connected to the fixed mounting seat 2 or the movable mounting seat 3. When the workpiece needs to be rotated, the first motor is started. The first motor drives the first gear 4 to rotate. The first gear 4 drives the second gear 29 to rotate. The second gear 29 will drive the mounting ring 18 to rotate, thereby driving the workpiece to rotate. During the rotation of the workpiece, the first V-shaped plate 24 and the second V-shaped plate 25 will also rotate synchronously. By setting the counterweight balls 28, the overall center of gravity of the first V-shaped plate 24 and the first bracket 26 exceeds the center of the mounting ring 18, as Figure 5As shown, the distance between the center of gravity of the first V-shaped plate 24 and the first bracket 26 as a whole and the upper edge of the mounting ring 18 is greater than the radius of the mounting ring 18. Similarly, the distance between the center of gravity of the second V-shaped plate 25 and the second bracket 27 as a whole and the lower edge of the mounting ring 18 is greater than the radius of the mounting ring 18. Then, during the rotation process, due to the action of centrifugal force, the first V-shaped plate 24 and the second V-shaped plate 25 will approach each other, clamping the workpiece by using centrifugal force, ensuring the stability of workpiece clamping. The greater the rotation speed, the greater the clamping force and the more stable the clamping.

[0027] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 [[ID=I3]]shown, as a preferred embodiment of the present invention, the lifting assembly includes a guiding assembly 7 and a telescopic rod 8. The guiding assembly 7 is fixedly installed on the base 1, the telescopic rod 8 is fixedly installed on the base 1, and the ends of the guiding assembly 7 and the telescopic rod 8 away from the base 1 are fixedly connected to a mounting plate 6. The laser generator 16 is fixedly installed on the mounting plate 6.

[0028] In this embodiment, when it is necessary to control the lifting of the laser gun head 17, the telescopic rod 8 is started, and the mounting plate 6 is driven to lift by the telescopic rod 8, indirectly controlling the lifting of the laser gun head 17.

[0029] As Figure 1 , Figure 2 , [[ID=2I]] Figure 3 , Figure 4 and Figure 5 shown, as a preferred embodiment of the present invention, two groups of material blocking plates 9 are fixedly installed on the base 1, and the material blocking plates 9 are fixedly arranged on both sides of the laser gun head 17.

[0030] In this embodiment, by setting the material blocking plates 9, it is possible to prevent the flying materials from splashing everywhere.

[0031] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, as a preferred embodiment of the present invention, a rotating shaft is fixedly installed on the base 1, a rotating sleeve 10 is rotatably installed on the rotating shaft, the rotating sleeve 10 is connected to the rotating shaft through a torsion spring, and a material guiding plate 11 is fixedly connected to the rotating sleeve 10.

[0032] In this embodiment, the number of the material guiding plates 11 can be set in multiple groups, so that after the feeding is completed, the cut workpieces slide outward along the arc surface of the material guiding plates 11.

[0033] As Figure 1 , Figure 2 , Figure 3 ,Figure 4 and Figure 5 As shown in Figure 5 , as a preferred embodiment of the present invention, a guide rail is provided on the base 1, a guide groove is provided at the bottom of the movable mounting seat 3, the guide rail is arranged in the guide groove, and a protective cover is provided above the base 1.

[0034] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic cutting and blanking device for sucker rods, characterized in that, The device includes: A base (1) on which a set of movable mounting seats (3) and multiple sets of fixed mounting seats (2) are fixedly arranged. Clamping mechanisms are rotatably connected to both the movable mounting seats (3) and the fixed mounting seats (2). The clamping mechanisms are used to clamp workpieces. A laser generator (16) is installed on the base (1) through a lifting assembly. The laser generator (16) includes a laser gun head (17) and a temperature measuring probe. The temperature measuring probe is used to measure the temperature of the cutting point. An end plate (12) is fixedly arranged at the end of the base (1), and a distance sensor (13) is fixedly arranged on the end plate (12). A second motor (14) is fixedly installed on the base (1), and the output shaft of the second motor (14) is fixedly connected to a threaded rod (15). The movable mounting seat (3) is connected to the threaded rod (15) through a threaded hole. By detecting the temperature rise rate of the workpiece with the temperature measuring probe, the rotation speed of the workpiece is controlled according to the temperature rise rate. The molten material generated by the cutting of the workpiece will fly out along the tangent under the action of centrifugal force, avoiding dripping into the inner cavity of the workpiece; The clamping mechanism includes a mounting ring (18). Two guide sleeves (19) are fixedly installed on the inner wall of the mounting ring (18). The two guide sleeves (19) are symmetrically arranged inside the mounting ring (18). Guide posts (21) are slidably arranged in the guide sleeves (19). The two guide posts (21) are respectively fixedly connected to a first V-shaped plate (24) and a second V-shaped plate (25). Support sleeves (22) are fixedly installed on both the first V-shaped plate (24) and the second V-shaped plate (25). Magnets (23) are fixedly installed on the support sleeves (22). Electromagnets (20) are fixedly installed on the guide sleeves (19). Avoidance grooves are arranged on both the first V-shaped plate (24) and the second V-shaped plate (25). The avoidance grooves on the first V-shaped plate (24) and the second V-shaped plate ( 2. The automatic cutting and blanking device for sucker rods according to claim 1, wherein, ​ 3. The automatic cutting and blanking device for sucker rods according to claim 1, characterized in that, Two groups of baffle plates (9) are fixedly installed on the base (1), and the baffle plates (9) are fixedly arranged on both sides of the laser gun head (17).

4. The automatic cutting and blanking device for sucker rods according to claim 1, wherein, A rotating shaft is fixedly installed on the base (1), a rotating sleeve (10) is rotatably installed on the rotating shaft, the rotating sleeve (10) is connected to the rotating shaft through a torsion spring, and a material guiding plate (11) is fixedly connected to the rotating sleeve (10).

5. The automatic cutting and blanking device for sucker rods according to claim 1, wherein, A protective cover is arranged above the base (1).

6. The automatic cutting and blanking device for sucker rods according to claim 1, wherein, A guide rail is arranged on the base (1), a guide groove is arranged at the bottom of the movable mounting seat (3), and the guide rail is arranged in the guide groove.

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