CN116967534A - An intelligent scraping device for steel pipes - Google Patents

Abstract

The utility model discloses an intelligent steel pipe scar-removing device which comprises a barrel capable of being inserted into a steel pipe and a scar-removing mechanism arranged on the barrel, wherein the scar-removing mechanism comprises a scraper component and a supporting component, at least two notches are formed in the outer side wall of the barrel along the circumferential direction, the scraper component is arranged in one notch, the supporting component is arranged in the other notches, an adjusting component is connected onto the supporting component and the scraper component together, and the adjusting component is operated to correspondingly drive the supporting component and the scraper component to synchronously move along the radial direction of the steel pipe. According to the intelligent steel pipe scar removing device, in the using process, after the cylinder body is inserted into the steel pipe, the positions of the scraper component and the supporting component are adjusted through the adjusting component until the supporting component and the scraper component are in contact with the inner wall of the steel pipe, the adjusting operation is simple, and the steel pipe scar removing device can be adjusted in place at one time.

Description

An intelligent scraping device for steel pipes

Technical field

The invention relates to the technical field of steel pipe processing, specifically an intelligent scraping device for steel pipes.

Background technique

The processing method of round steel pipe is to bend the steel plate through multiple sets of rollers, and then use high-frequency current induction to heat the gap of the tube blank to a molten state, and then use the extrusion roller to squeeze it to achieve welding. After the welding is completed , and then scrape off the weld seam at the welding point. The existing method of removing the weld seam on the outer wall of the circular steel pipe is to set up a scraper to scrape off the weld seam while the round pipe is traveling.

In the prior art, the weld scars at the welds on the inner wall of the steel pipe are not scraped off if there is no requirement. If there are requirements on the inner wall of the steel pipe, they are often scraped off manually or with an internal scraper. The internal scraper is used to scrape off the weld scar. Compared with manual scraping, the scraping efficiency is high. For example, the authorization announcement number is CN204770975U, the authorization announcement date is November 18, 2015, and the utility model patent application titled "In-weld scraper" includes a ring-shaped cutter and a knife. The annular tool is fixed on the front end of the tool holder. The axis of the annular tool is tilted to one side of the tool holder, and the angle between the axis of the annular tool and the vertical direction is 30 degrees; the tool holder is equipped with a lever that can adjust the height of the annular tool. The bracket includes a supporting arm and an adjusting screw. A receiving slot is provided on the lower surface of the tool holder. The supporting arm is placed in the receiving slot and is pivotally connected to the tool holder through a pivot shaft. The adjusting screw is located on one side of the pivot shaft. It is threadedly connected to the tool holder, and extends into the accommodating groove to abut against the support arm.

Another example is the application for an invention patent with publication number CN112475472A and authorization announcement date of March 12, 2021, titled thin-walled welded pipe internal scraping mechanism. On the frame, an inner pull rod assembly is fixed on the adjustment assembly. The inner pull rod assembly is perpendicular to the adjustment assembly. An inner scraper assembly is fixed at the tail of the inner pull rod assembly. Both the inner pull rod assembly and the inner scraper assembly are arranged in the welded pipe. The invention uses an adjustment component, an inner pull rod assembly and an inner scraper assembly to be combined. The inner pull rod assembly and the inner scraper assembly are arranged in the welded pipe. By rotating the up and down adjustment screw and guiding through the fixed seat and sliding seat, the upper and lower positions of the inner pull rod connecting plate are adjusted. Ensure the position of the inner scraper assembly within the thin-walled welded pipe.

During the use of the inner scraper, the scraper needs to be extended into the inside of the steel pipe. During the use of the existing internal scraper, in order to enable the scraper to adapt to pipe types of different sizes, before the scraper extends into the steel pipe, it needs to be The pipe size adjusts the position of the scraper. However, during the adjustment process, if the adjustment position of the scraper is too large, it will be difficult to insert into the steel pipe. If the adjustment position of the scraper is too small, after it is inserted into the steel pipe, there will be a gap between the scraper and the inner wall of the steel pipe. Therefore, it is impossible to scrape off all the weld scars at the welds on the inner wall of the steel pipe.

Contents of the invention

The purpose of the present invention is to provide an intelligent scraping device for steel pipes to solve the technical problems in related technologies.

In order to achieve the above objects, the present invention provides the following technical solutions:

An intelligent scraping device for steel pipes, including a cylinder that can be inserted into the interior of the steel pipe and a scraping mechanism provided on the cylinder. The scraping mechanism includes a scraper component and a support component. The outer wall of the cylinder is along the circumference. There are at least two slots provided in the direction, the scraper assembly is arranged in one of the slots, the support assembly is arranged in the other slot, and an adjustment assembly is jointly connected to the support assembly and the scraper assembly, so The adjustment component is operated to correspondingly drive the support component and the scraper component to move synchronously along the radial direction of the steel pipe.

The above-mentioned intelligent scraping device for steel pipes also includes a pressure detection component, which is arranged on the support component and used to detect the pressure of the support component.

In the above-mentioned intelligent scraping device for steel pipes, the support assembly includes a roller seat and a positioning roller arranged on the roller seat, and the pressure detection component is arranged on the roller seat.

In the above-mentioned intelligent scraping device for steel pipes, the scraper assembly includes a scraper base and a scraper arranged on the scraper base.

In the above-mentioned intelligent scraping device for steel pipes, the adjustment component includes a driving member arranged along the axis of the cylinder and an adjusting member arranged perpendicularly to the driving member. The adjusting member is drivingly connected to the support assembly and the scraper assembly. .

In the above-mentioned intelligent scraping device for steel pipes, the driving member includes a driving rod arranged coaxially with the barrel, and a driving structure is provided at one end of the driving rod away from the adjusting member.

In the above-mentioned intelligent scraping device for steel pipes, the adjustment member includes a coaxially arranged circular gear and a circular fixed seat, and the circular fixed seat is fixedly installed in the installation section of the axial channel inside the barrel, so The circular gear is mounted on the end of the drive rod.

The above-mentioned intelligent scraping device for steel pipes also includes a transmission assembly, which is arranged between the adjustment member and the support assembly and the scraper assembly. The rotation of the adjustment member drives the support assembly and the scraper assembly along the direction of the steel pipe. Make linear motion in radial direction.

The above-mentioned intelligent scraping device for steel pipes also includes a circular cover body, which is installed on the circular fixed seat. The circular cover body is provided with a radial opening groove, and the sliding movement of the adjustment seat is limited to the radial opening. into the open slot.

In the above-mentioned intelligent scraping device for steel pipes, the driving member includes forward rotation motion and reverse rotation motion. In the forward rotation motion, the support assembly and the scraper assembly make a first adjustment along the radial direction of the steel pipe. Movement, in the forward rotation movement, the support assembly and the scraper assembly make a second adjustment movement in the radial direction of the steel pipe opposite to the direction of the first adjustment movement.

The beneficial effects of the present invention are: the intelligent scraping device for steel pipes includes a cylinder that can be inserted into the interior of the steel pipe and a scraping mechanism arranged on the cylinder. The scraping mechanism includes a scraper assembly and a support assembly. The support assembly and the scraper assembly are jointly connected with An adjustment component, so that during use, the cylinder can be inserted into the inside of the steel pipe, and then the positions of the scraper component and the support component can be adjusted through the adjustment component until the support component and the scraper component are in contact with the inner wall of the steel pipe. It is simple to operate, can be adjusted in place at one time, and can be adapted to scratching steel pipes of different sizes.

Description of the drawings

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description only describe the present invention. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings.

Figure 1 is a schematic three-dimensional structural diagram of a steel pipe intelligent scraping device provided by an embodiment of the present invention;

Figure 2 is a schematic structural diagram of the scraping mechanism of a steel pipe intelligent scraping device provided by an embodiment of the present invention;

Figure 3 is a schematic diagram of the internal structure of the scraping mechanism of a steel pipe intelligent scraping device provided by an embodiment of the present invention;

Figure 4 is a schematic structural diagram of a support component of a steel pipe intelligent scraping device provided by an embodiment of the present invention;

Figure 5 is a schematic three-dimensional structural diagram of a steel pipe intelligent scraping device provided by another embodiment of the present invention;

Figure 6 is a schematic diagram of the installation of a steel pipe intelligent scraping device provided by another embodiment of the present invention;

Figure 7 is a schematic structural diagram of a positioning mechanism of a steel pipe intelligent scraping device provided by another embodiment of the present invention;

Figure 8 is a schematic structural diagram of a scraper assembly of a steel pipe intelligent scraping device provided by yet another embodiment of the present invention;

Figure 9 is a schematic structural diagram of a scraper of a steel pipe intelligent scraping device provided by yet another embodiment of the present invention;

Figure 10 is a schematic structural diagram of a scraper seat of a steel pipe intelligent scraping device provided by yet another embodiment of the present invention;

Figure 11 is a schematic structural diagram of a locking member of a steel pipe intelligent scraping device provided by yet another embodiment of the present invention.

Explanation of reference symbols:

1. Cylinder; 10. Notch; 11. Axial channel; 2. Scratching mechanism; 3. Scraper assembly; 30. Scraper seat; 31. Scraper; 311. First blade edge; 312. Second blade edge; 313. Arc groove; 32. Opening mouth; 33. Sliding groove; 34. Sliding block; 35. Guide movement component; 36. Horizontal guide groove; 37. Inclined guide groove; 4. Support component; 40. Roller seat; 41. Positioning roller; 42. Elastic connector; 43. Movement column; 5. Adjustment component; 50. Driving member; 501. Driving rod; 502. Driving structure; 51. Adjusting member; 52. Circular gear; 53. Circular fixed seat; 531. Sliding restriction groove; 54. Circular cover; 541. Radial opening groove; 6. Transmission component; 61. Moving seat; 611. Cogging; 612. Inclined groove; 62. Adjustment Seat; 63. Connecting piece; 7. Positioning mechanism; 8. Protection component; 80. Locking piece; 81. Locking plate; 82. Locking block; 821. Pressing slope; 83. Connecting column; 84. Spring piece; 85. Elastic buffer piece; 86, buffer spring; 87, buffer plate.

Detailed ways

In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be introduced in further detail below with reference to the accompanying drawings 1 to 11.

The embodiment of the present invention provides an intelligent scraping device for steel pipes, which includes a cylinder 1 that can be inserted into the interior of the steel pipe and a scraping mechanism 2 arranged on the cylinder 1. The scraping mechanism 2 includes a scraper assembly 3 and a support assembly 4. The cylinder There are at least two slots 10 provided on the outer side wall of 1 along the circumferential direction. The scraper assembly 3 is arranged in one of the slots 10. The support assembly 4 is arranged in the other slots 10. The support assembly 4 and the scraper assembly 3 are connected together. There is an adjustment component 5, and the adjustment component 5 can be operated to correspondingly drive the support component 4 and the scraper component 3 to move synchronously along the radial direction of the steel pipe.

Specifically, the radial size of the cylinder 1 is smaller than the radial size of the steel pipe, so that the cylinder 1 is suitable for passing through and at least partially accommodated inside the steel pipe. The scraping mechanism 2 is provided in the content of the cylinder 1 inside the steel pipe. After the steel pipe welding is completed, there is a strip of welding wire along the inner wall of the steel pipe. The scraping mechanism 2 is used to scrape off the welding wire on the inner wall of the steel pipe. The scraping mechanism 2 includes a corresponding scraper assembly 3 and a support assembly 4. , a notch 10 is provided on the outer wall of the cylinder 1. The notch 10 is arranged along the axis direction of the cylinder 1. The notch 10 is used for the installation of the scraper assembly 3 and the support assembly 4. The number of the notches 10 is related to the scraper. The total number of components 3 and support components 4 is the same. There is only one scraper component 3, which is installed in one of the notches 10 and corresponds to the welding wire part of the steel pipe. The support component 4 can be one, two, three, or There are multiple support components 4 installed in the remaining slots 10. The support component 4 plays two roles: First, the support component 4 and the scraper component 3 move synchronously, that is, along the radial direction of the steel pipe, the support component 4 is in contact with the center of the steel pipe. The distance between the scraper assembly 3 and the center of the steel pipe is equal to the distance between the scraper assembly 3 and the center of the steel pipe. During adjustment, when the support assembly 4 contacts the inner wall of the steel pipe, it indicates that the support assembly 4 has been adjusted in place. At this time, the scraper assembly 3 is also adjusted. Adjust it in place to contact the inner wall of the steel pipe; secondly, when the inner weld scar of the steel pipe is scraped by the intelligent steel pipe scraping device, the steel pipe moves along the axis of the cylinder 1, and the support assembly 4 is in contact with the inner wall of the steel pipe. This has a positioning effect on the running steel pipe, can prevent the steel pipe from rotating during operation, and ensures that the scraper assembly 3 always corresponds to the welding wire that needs to be scraped.

In this embodiment, the support component 4 and the scraper component 3 are jointly connected with an adjustment component 5. The adjustment component 5 is used to synchronously adjust the positions of the support component 4 and the scraper component 3. The adjustment component 5 can be manually adjusted or It is an automatic adjustment. An axial channel 11 is provided in the cylinder 1 along the axial direction. The adjusting component 5 includes a driving member 50 provided in the axial channel 11 and an adjusting member 51 provided on the driving member 50. The adjusting member 51 is arranged along the axial direction. The cylinder 1 is arranged in the radial direction. The driving member 50 is driven to rotate and can drive the adjustment member 51 to move. The movement of the adjustment member 51 can correspondingly drive the scraper assembly 3 and the support assembly 4 to move away from or closer to the center of the cylinder 1. During use, , the cylinder 1 can be fixedly installed on the steel pipe production line, and the cylinder 1 can be kept coaxial with the produced steel pipe. After the steel pipe is welded, the welding wire or weld scar on the inner wall of the end of the steel pipe is manually scraped to form Calibration section, then the steel pipe moves along the production line and is coated on the cylinder 1 and the steel pipe weld and the scraper assembly 3 are located on the same straight line. When the calibration section of the steel pipe corresponds to the scraping mechanism 2, the adjustment assembly 5 is used to adjust the scraper assembly 3 and The support assembly 4 is driven and adjusted so that the support assembly 4 is in contact with the inner wall of the steel pipe. At this time, the scraper assembly 3 is also in contact with the inner wall of the steel pipe. Then the steel pipe reciprocates linearly along the production line. Through linear motion, the scraper assembly 3 is in contact with the steel pipe. The internal welding wire can be scraped off, or the cylinder 1 can be actively driven to move to realize the cutting and scraping. These are all existing technologies and will not be described in detail.

The invention provides an intelligent scraping device for steel pipes, which includes a cylinder 1 that can be inserted into the interior of the steel pipe and a scraping mechanism 2 arranged on the cylinder 1. The scraping mechanism 2 includes a scraper assembly 3 and a support assembly 4. The support assembly 4 and The scraper assembly 3 is jointly connected with an adjustment assembly 5, so that during use, the cylinder 1 can be inserted into the inside of the steel pipe, and then the positions of the scraper assembly 3 and the support assembly 4 can be adjusted through the adjustment assembly 5 until the support The component 4 and the scraper component 3 are in contact with the inner wall of the steel pipe. The adjustment operation is simple and can be adjusted in place at one time, and can be adapted to perform scraping operations on steel pipes of different sizes.

In the embodiments provided by the present invention, it is preferred to further include a pressure detection component, which is provided on the support component 4 and is used to detect the pressure of the support component 4; the pressure detection component can be a pressure sensor, through which the pressure sensor can detect the pressure of the support component 4. The pressure of the component 4 is monitored, so that when the support component 4 and the scraper component 3 are adjusted through the adjustment component 5, the support component 4 and the scraper component 3 move simultaneously along the radial direction of the steel pipe in the direction close to the inner wall of the steel pipe. When the support component 4 When in contact with the inner wall of the steel pipe, the pressure sensor can detect the pressure on the support component 4 and output the detection value. Based on the detection value, the operator can know in time that the support component 4 and the scraper component 3 have been adjusted in place.

In the embodiment provided by the present invention, optionally, the support assembly 4 includes a roller seat 40 and a positioning roller 41 provided on the roller seat 40 , and a pressure detection component is provided on the roller seat 40 to detect the pressure of the positioning roller 41 on the roller seat 40 . The squeezing force, the positioning roller 41 is rotationally connected to the roller seat 40, so that when the welding wire or welding scar on the inner wall of the steel pipe is scraped by the scraper assembly 3, the steel pipe moves along the production line, and the positioning roller 41 rotates so that the positioning roller 41 and the steel pipe rolling contact between them, thereby reducing the friction between the support component 4 and the steel pipe.

In the embodiment provided by the present invention, preferably, the scraper assembly 3 includes a scraper base 30 and a scraper 31 arranged on the scraper base 30. The scraper 31 and the scraper base 30 are of a split structure, and the scraper 31 is detachably installed on the scraper base 30. In order to facilitate the replacement of the scraper 31, the scraper 31 is provided with a blade for scraping off the welding wire and welding scars on the inner wall of the steel pipe. The blade is on the same straight line as the welding wire on the inner wall of the steel pipe. In this way, the steel pipe moves along the production line, and the blade Scrape off the welding wire on the inner wall of the steel pipe in sequence.

In the embodiment provided by the present invention, preferably, the adjusting component 5 includes a driving member 50 arranged along the axis of the cylinder 1 and an adjusting member 51 arranged perpendicularly to the driving member 50. The adjusting member 51 is driven by the support assembly 4 and the scraper assembly 3. Connection; the cylinder 1 is provided with an axial channel 11 along the axis direction. The axial channel 11 has at least one installation section with a larger radial size for the installation of the adjustment member 51. This installation section is connected with the notch 10, and the driving member 50 is rotatably connected in the axial channel 11, and the adjusting member 51 is rotatably arranged in the installation section, so that during use, the driving member 50 is driven to rotate in the axial channel 11, and the driving member 50 can rotate Correspondingly, the adjustment member 51 is driven to rotate in the installation section, and the rotation of the adjustment member 51 can drive the scraper 31 and the roller to move in a direction close to or away from the inner wall of the steel pipe along the radial direction of the steel pipe.

In the embodiment provided by the present invention, preferably, the driving member 50 includes a driving rod 501 arranged coaxially with the cylinder 1. The driving rod 501 is provided with a driving structure 502 at one end away from the adjusting member 51. The driving structure 502 may be a manual driving member. , it can also be an automatic driving member, and the driving structure 502 is provided with a locking structure such as a locking pin to have the effect of locking the driving rod 501, so that when the driving rod 501 rotates, the adjusting member 51, the support assembly 4 and the scraper assembly 3 move After reaching the appropriate position, the driving rod 501 is locked so that the adjusting member 51, the support assembly 4 and the scraper assembly 3 are all fixed in this position.

In the embodiment provided by the present invention, further, the adjusting member 51 includes a coaxially arranged circular gear 52 and a circular fixed seat 53. The circular fixed seat 53 is fixedly installed in the installation section of the axial channel 11 inside the barrel 1. Inside, the circular gear 52 is installed at the end of the driving rod 501. The circular gear 52 can rotate synchronously with the driving rod 501. The radial size of the circular fixed seat is consistent with the radial size of the installation section.

In the embodiment provided by the present invention, further, a transmission assembly 6 is provided between the adjustment member 51 and the support assembly 4 and the scraper assembly 3. The adjustment member 51 rotates through the transmission assembly 6 to correspondingly drive the support assembly 4 and the scraper assembly. 3 makes linear motion along the radial direction of the steel pipe; each support component 4 and scraper component 3 are each provided with a transmission component 6. The transmission component 6 includes a movement seat 61 and an adjustment seat 62, and a sliding restriction groove is provided on the circular fixed seat. 531. The sliding restriction groove 531 is arranged perpendicularly to the radial direction of the circular fixed seat 53. The number of the sliding restriction groove 531 is consistent with the number of the transmission components 6. A sliding block 34 is provided at the bottom of the moving seat 61. The sliding block 34 The sliding is limited in the sliding limiting groove 531. A tooth slot 611 is provided on the side wall of the moving seat 61 corresponding to the circular gear 52. The tooth slot 611 meshes with the adjustment gear. The rotation of the circular gear 52 can drive various movements accordingly. The seat 61 slides along the sliding restriction groove 531. The upper surface of the movable seat 61 is provided with a chute 612. The chute 612 is inclined away from the center of the circular fixed seat 53. The bottom of the adjustment seat 62 is provided with a chute 612 corresponding to the chute 612. The bar block is slidably limited in the chute 612.

In the embodiment provided by the present invention, it further includes a circular cover body 54, which is installed on the circular fixed base 53. The circular cover body 54 is provided with a radial opening groove 541, and the adjustment seat 62 is limited in sliding in the radial direction. into the opening groove 541; the circular cover 54 and the circular fixed seat 53 are coaxially arranged, and an installation space for the circular gear 52 and the moving seat 61 to be installed is formed between the circular cover 54 and the circular fixed seat 53. The radial opening slots 541 are connected with the slot 10, and the number of the radial opening slots 541 is consistent with the number of the adjusting seats 62. In this way, the radial opening slots 541 limit the movement of the adjusting seats 62, so that the adjusting seats 62 It can only move along the radial opening groove 541. When the circular gear 52 rotates, it will drive each moving seat 61 to move along the sliding restriction groove 531. The movement of the moving seat 61 will correspondingly drive each adjusting seat 62 along the radial opening groove 541 (steel pipe). radial) movement.

In the embodiment provided by the present invention, preferably, the driving member 50 is driven including forward rotation and reverse rotation. In the forward rotation, the support assembly 4 and the scraper assembly 3 make the first movement along the radial direction of the steel pipe. Adjustment movement, in the reverse rotation movement, the support assembly 4 and the scraper assembly 3 perform a second adjustment movement in the radial direction of the steel pipe in the opposite direction to the first adjustment movement; the first adjustment movement can be the scraper 31 and the roller along the radial direction of the steel pipe. The movement can be in the direction close to the inner wall of the steel pipe, or the scraper 31 and the roller can move in the radial direction of the steel pipe in the direction away from the inner wall of the steel pipe. For the convenience of description, in the following, the first adjustment movement is the movement of the scraper 31 and the roller in the radial direction of the steel pipe. Move closer to the inner wall of the steel pipe, and the second adjustment movement is for the scraper 31 and the roller to move away from the inner wall of the steel pipe along the radial direction of the steel pipe. In this way, during use, by adjusting the rotation direction of the driving rod 501, the circular The gear 52 drives the movement seat 61 and the adjustment seat 62 to move in different directions correspondingly, so that the movement directions of the scraper 31 and the roller are changed, and the positions of the scraper 31 and the roller are adjusted to appropriate positions.

In the embodiment provided by the present invention, preferably, it also includes a connecting piece 63, which is adjustably installed on the adjusting seat 62. The scraper seat 30 and the roller seat 40 are both connected to the ends of the connecting piece 63. The connecting piece 63 It can be a connecting bar. The connecting bar is provided with connecting screw holes. The adjusting seat 62 is provided with a mounting groove. The bottom of the mounting groove is provided with different mounting screw holes along the length direction. When in use, the connecting screw holes can be Corresponding to different mounting screw holes, the position of the connecting bar is adjusted, and then the connecting bar and the adjusting seat 62 are fixed by installing the fixing bolts in the connecting screw holes and the mounting screw holes, so that the scraper 31 and the roller are in the initial state The distance between the bottom and the center of the cylinder 1 can be adjusted, and the adjustment seat 62 moves in the direction of the radial opening groove 541, thereby increasing the adjustment range of the scraper 31 and the roller, and being applicable to steel pipes of different sizes.

In the embodiment provided by the present invention, it is preferred to further include an elastic connector 42, which is provided between the roller seat 40 and the connector 63 for elastic buffering of the roller. The elastic connector 42 can be a spring. 63 is provided with a radial through hole, the roller seat 40 is provided with a moving column 43, the sliding movement of the moving column 43 is limited in the radial through hole, the spring member 84 is coated on the moving column 43, and the two ends of the spring member 84 are respectively fixed on The connecting piece 63 and the roller seat 40, so that during use, when the roller is pressed by the inner wall of the steel pipe, the roller base 40 will move in the direction of the connecting piece 63 to press the elastic connecting piece 42, so that the roller and the inner wall of the steel pipe The pressure between the rollers and the steel pipe is reduced to avoid hard contact between the rollers and the inside of the steel pipe. When the resistance force of the inner wall of the steel pipe against the rollers is reduced or disappears, under the action of the elastic connector 42, the roller seat 40 and the roller move away from the connector. 63 direction movement.

In another embodiment provided by the present invention, further, when processing the welding wire on the steel pipe through the intelligent steel pipe scraping device, it is necessary to manually scrape off the welding wire or welding scar on the inner wall of the end of the steel pipe to form a calibration section. While the steel pipe is located on the production line, manual scraping to form a calibration section is inconvenient to operate, and only the rollers on the scraping mechanism 2 can only support and position the steel pipe in the radial direction, but cannot support and position the steel pipe in the axial direction, so when driving The rod 501 is also provided with a positioning mechanism 7, which is coaxially arranged with the scraping mechanism 2. The positioning mechanism 7 and the scraping mechanism 2 have basically the same structure. The difference is that the scraping mechanism includes both the scraper assembly 3 and the scraping mechanism 2. Support component 4, while the positioning mechanism 7 only includes the support component 4, and the number of the support components 4 in the positioning mechanism 7 is the same as the sum of the number of the scraper components 3 and the support components 4 in the scraping mechanism. For example, the scraping mechanism includes One scraper assembly 3 and two support assemblies 4, then the positioning mechanism 7 includes three support assemblies 4, and the support assembly 4 on the positioning mechanism 7 and the scraper assembly 3 and the support assembly 4 on the scraping mechanism are arranged in the same place one by one. On a straight line, the positioning mechanism 7 can form an axial positioning support effect on one side of the scraping mechanism, which can prevent the steel pipe from deflecting during the scraping process. At the same time, the circular cover body 54 of the scraping mechanism and the circular The fixed seat 53 is provided with a circular hole for the driving rod 501 to pass through. The circular gear 52 on the positioning mechanism 7 is fixed on the end of the driving rod 501, so that when the driving rod 501 is driven to rotate, the scraping mechanism can be driven. The circular gear 52 of 2 and the circular gear 52 of the positioning mechanism 7 rotate synchronously, so that the support assembly 4 and the scraper assembly 3 on the scraping mechanism 2 and the support assembly 4 on the positioning mechanism 7 all move synchronously, ensuring that the positioning mechanism 7 The position of the support component 4 is consistent with the support component 4 and the scraper component 3 on the scraping mechanism. This can improve the support and positioning effect of the support component 4 on the positioning mechanism 7 for the steel pipe, and during use, the positioning mechanism 7 can Cover a standard steel pipe fitting with the same size as the steel pipe. At this time, the scraping mechanism is not covered with a steel pipe to be scraped. There is no welding wire or welding scar on the inner wall of the standard steel pipe fitting. Then the driving rod 501 is driven so that the scraping mechanism 2 The support assembly 4 and the scraper assembly 3 on the upper body and the support assembly 4 on the positioning mechanism 7 all move synchronously. When the support assembly 4 on the positioning mechanism 7 moves to contact the inner wall of the standard steel pipe fitting, it indicates that the positioning mechanism 7 is adjusted in place. , then the support component 4 and scraper component 3 of the scraping mechanism are also adjusted in place, remove the standard steel pipe fittings, and then the steel pipe that needs to be scraped can move along the production line and pass through the scraping mechanism in sequence. The scraper component 3 of the scraping mechanism pairs the steel pipe. The welding wire on the inner wall is scraped off.

In another embodiment provided by the present invention, preferably, during the welding process of the steel pipe, in addition to the welding wire, there will also be a thicker weld scar. When the scraper 31 encounters a thicker weld scar, the weld scar will The pressure on the scraper 31 will suddenly increase, and the stationary scraper 31 will be easily damaged. In order to avoid this phenomenon, a protective component 8 is provided between the scraper seat 30 and the scraper 31. The protective component 8 is used to protect the scraper 31. , to prevent the scraper 31 from being subjected to a large resistance force; the protection component 8 includes a locking piece 80 and an elastic buffering piece 85. The locking piece 80 is used to lock the scraper 31 under normal working conditions, so that the scraper 31 can normally perform welding on the inner wall of the steel pipe. When the scraper 31 encounters a large resistance force, the locking member 80 is driven to automatically unlock. At this time, the scraper 31 can move along the axis of the steel pipe on the scraper seat 30, and the elastic buffer member 85 elastically buffers the scraper 31. , so that the scraper 31 scrapes off the weld scar during the elastic buffering process, ensuring that the scraper 31 will not encounter excessive resistance force and cause damage.

In yet another embodiment provided by the present invention, preferably, the scraper seat 30 is provided with an opening 32 that opens upward, a sliding groove 33 is provided at the bottom of the opening 32, and a sliding block 34 is provided at the bottom of the scraper 31. The sliding block 34 is slidably connected in the sliding groove 33. There are at least two sliding grooves 33 and sliding blocks 34. An installation cavity is provided inside the scraper seat 30, and a locking channel connected to the installation cavity is provided in the sliding groove 33. , a connection channel is provided at the bottom of the installation cavity, the locking member 80 includes a locking plate 81 and a locking block 82 provided on the locking plate 81 , each locking block 82 is provided with a pressing slope 821 , and each sliding block 34 is provided with a The driving slope corresponds to the pressing slope 821. The bottom of the locking plate 81 is provided with at least two connecting columns 83. The locking plate 81 is installed in the installation cavity. The lower end of the connecting column 83 is slidably restricted in the connecting channel. The locking block 82 can It protrudes from the locking channel, and a spring member 84 is set on each connecting column 83. The upper end of the spring member 84 is fixedly connected to the locking plate 81, and the lower end of the spring member 84 is fixedly connected to the bottom of the installation cavity. In the initial state , under the action of the spring member 84, the locking block 82 extends from the locking channel to the sliding groove 33, and the locking block 82 blocks the sliding block 34 to fix the scraper 31.

In yet another embodiment provided by the present invention, preferably, the elastic buffer member 85 includes a buffer spring 86 and a buffer plate 87. One end of the buffer spring 86 is fixedly disposed on the side wall of the opening 32, and the other end of the buffer spring 86 is connected to the buffer plate. 87 is connected, the buffer plate 87 is in pressing contact with the scraper 31. In the initial state, the buffer spring 86 has elasticity to press the scraper 31, and at the same time, the locking block 82 extends from the locking channel to the sliding groove 33 to slide The block 34 blocks, so that the buffer plate 87 and the locking block 82 work together to fix the scraper 31. At this time, the pressing slope 821 of the sliding block 34 is in contact with the driving slope of the locking block 82. During the normal scraping process, the scraper 31 The locking block 82 always restricts the sliding block 34. When the resistance force of the scraper 31 exceeds the preset value, the sliding block 34 presses the locking block 82 so that the locking block 82 is stored in the locking channel. The locking plate 81 and the connection The columns 83 all move downward, and the spring member 84 is pressed. Then the scraper 31 moves along the opening 32 to press the buffer plate 87 and the buffer spring 86. The buffer plate 87 and the buffer spring 86 elastically buffer the scraper 31. This is During the buffering movement stroke of the scraper 31, the sliding block 34 presses the locking block 82 so that the locking block 82 is always stored in the locking channel. Subsequently, when the resisting force on the scraper 31 decreases or disappears, the scraper 31 Under the elastic action of the buffer spring 86 and the buffer plate 87, it moves in the opposite direction to the direction of the buffer movement until the scraper 31 moves to the initial position. At this time, the pressure of the sliding block 34 on the locking block 82 disappears, and the locking block 82 is in the spring member. 84 stretches out from the locking channel to lock the sliding block 34.

In yet another embodiment provided by the present invention, preferably, along the axis direction of the steel pipe, the top of the scraper 31 is provided with two cutting edges for scraping off scratches, namely the first cutting edge 311 and the second cutting edge. 312. There is an arc-shaped groove 313 between the first blade edge 311 and the second blade edge 312. The strength of the second blade edge 312 is greater than the first blade edge 311, so that the second blade edge 312 has better scraping. As a result, guide movement components 35 are provided on both sides of the scraper 31, and guide grooves are provided on the side walls of the opening 32 of the scraper seat 30. Along the axis of the steel pipe, the guide grooves include horizontal guide grooves 36. And the upward inclined inclined guide groove 37, the horizontal guide groove 36 is connected with the inclined guide groove 37, and the guide movement component 35 can move along the horizontal guide groove 36 and the inclined guide groove 37, so that in the initial state, the guide groove 36 is connected with the inclined guide groove 37. The moving components 35 are all located in the horizontal guide groove 36. At this time, the scraper 31 is in a normal horizontal state. The first blade 311 located in the front scrapes the welding wire on the inner wall of the steel pipe. When the scraper 31 encounters a thick weld scar, etc. When receiving a large resistance force, the scraper 31 performs a buffering motion along the opening 32. During this process, the guide movement component 35 moves along the horizontal guide groove 36 to the inclined guide groove 37, thereby causing the scraper 31 to tilt downward. , at this time, there is a gap between the first cutting edge 311 in front and the inner wall of the steel pipe, and the second cutting edge 312 moves upward to contact the inner wall of the steel pipe. After the welding scar is scraped off by the first cutting edge 311, it will be removed from the first cutting edge 311 and the inner wall of the steel pipe, and then the second blade edge 312 continues to scrape the weld scar twice. In this way, the first blade edge 311 and the second blade edge 312 are scraped twice, which can improve the scraping effect. After the resisting force on the two cutting edges 312 decreases or disappears, the scraper 31 moves in the opposite direction to the buffering movement direction under the elastic action of the buffer spring 86 until the scraper 31 moves to the initial position, and the first cutting edge 311 and the second cutting edge 312 move to the initial position. The blade edge 312 returns to the initial state.

In yet another embodiment provided by the present invention, preferably, the sliding block 34 is connected to the bottom of the scraper 31 through a plurality of elastic telescopic rods (not shown in the figure), and the plurality of elastic telescopic rods are sequentially spaced along the length direction of the sliding block. Set up so that when the guide movement component 35 moves along the horizontal guide groove 36 to the inclined guide groove 37 so that the scraper 31 tilts downward, the lengths of each elastic telescopic rod change in turn, so that the sliding block is still limited to the sliding groove. 33, at the same time, a force-bearing inclined surface is also provided on the sliding block 34. The inclination angle of the force-bearing inclined surface is greater than the inclination angle of the inclined guide groove 37. At the end of the buffering movement stroke, the scraper 31 tilts downward and is in an inclined state. The second blade edge 312 is in contact with the inner wall of the steel pipe to scrape off the weld scar. At this time, the force-bearing slope is in pressing contact with the bottom wall of the sliding groove 33 and the driving slope of the locking block 82, so that the scraper 31 is subjected to greater pressure. The supporting force not only avoids the gap between the second blade edge 312 and the inner wall of the steel pipe, but also improves the scraping effect of the second blade edge 312 on the scraping.

Certain exemplary embodiments of the present invention have been described above only by way of illustration. It goes without saying that those skilled in the art can implement various embodiments in various ways without departing from the spirit and scope of the present invention. The described embodiments are modified. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims (10)

1. An intelligent scraping device for steel pipes, including a cylinder that can be inserted into the interior of the steel pipe and a scraping mechanism arranged on the cylinder. It is characterized in that the scraping mechanism includes a scraper assembly and a support assembly, and the barrel The outer side wall of the body is provided with at least two slots along the circumferential direction. The scraper assembly is arranged in one of the slots. The support assembly is arranged in the other slot. The support assembly and the scraper assembly are connected together. There is an adjustment component, which is operated to correspondingly drive the support component and the scraper component to move synchronously along the radial direction of the steel pipe. 2. The intelligent scraping device for steel pipes according to claim 1, further comprising a pressure detection component, which is arranged on the support component and used to detect the pressure of the support component. 3. The intelligent scraping device for steel pipes according to claim 2, wherein the support assembly includes a roller seat and a positioning roller arranged on the roller seat, and the pressure detection member is arranged on the roller seat. 4. The intelligent scraping device for steel pipes according to claim 1, wherein the scraper assembly includes a scraper base and a scraper arranged on the scraper base. 5. The intelligent scraping device for steel pipes according to claim 1, wherein the adjustment component includes a driving member disposed along the axis of the cylinder and an adjusting member disposed perpendicularly to the driving member. The component is drivingly connected to the support component and the scraper component. 6. The intelligent scraping device for steel pipes according to claim 5, wherein the driving member includes a driving rod arranged coaxially with the cylinder, and a driving rod is provided at one end of the driving rod away from the adjusting member. structure. 7. The intelligent scraping device for steel pipes according to claim 6, wherein the adjustment member includes a coaxially arranged circular gear and a circular fixed seat, and the circular fixed seat is fixedly installed on the barrel. The circular gear is mounted on the end of the drive rod within the mounting section of the inner axial channel. 8. The intelligent scraping device for steel pipes according to claim 5, further comprising a transmission assembly disposed between the adjusting member, the support assembly and the scraper assembly, and the adjusting member rotates correspondingly to drive the The support component and the scraper component make linear motion along the radial direction of the steel pipe. 9. The intelligent scraping device for steel pipes according to claim 7, further comprising a circular cover body, which is installed on the circular fixed base, and the circular cover body is provided with a radial opening slot. , the sliding movement of the adjustment seat is limited in the radial opening groove. 10. The steel pipe intelligent scraping device according to claim 6, characterized in that the driving member includes forward rotation movement and reverse rotation movement, and in the forward rotation movement, the support assembly and the scraper assembly A first adjustment movement is made along the radial direction of the steel pipe. In the forward rotation movement, the support assembly and the scraper assembly make a second adjustment movement in the radial direction of the steel pipe that is opposite to the direction of the first adjustment movement. sports.