Four-side detection device for stainless steel seamless tube

Abstract

The invention relates to the technical field of steel pipe detection, in particular to a stainless steel seamless pipe four-side detection device which comprises a workbench, a steel pipe vibrates after being impacted by a pendulum bob body, and when the steel pipe vibrates, a contact piece transmits vibration energy to a plate spring to drive a rotating rod and a gear ring to rotate; when the gear rotates, a second lead screw is driven to rotate, when the gear moves upwards, a top ball blocks the lower end of an oil storage pipe, when the gear moves downwards, printing ink in the oil storage pipe flows out to a steel pipe, if cracks or air holes or other defects exist on the steel pipe, the structural rigidity of the steel pipe changes, and when the steel pipe vibrates, the printing ink flows out of the oil storage pipe. The defects may influence the vibration mode, such as inherent frequency, amplitude attenuation and the like, so that the tracks of the ink flowing from the oil storage pipe to the steel pipe are different, or the defects of the steel pipe can be judged through the rotation angle of the gear ring, so that the detection of the steel pipe is more comprehensive, and missing detection or misjudgment is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe detection, in particular to a four-side detection device for a stainless steel seamless pipe. Background Art

[0002] Steel pipe is a common and frequently used metal product. With its wide application in various industries, steel pipe has realized automated production. In the automated production process of steel pipe, in order to ensure the qualified rate of steel pipe production and improve the rate of steel pipe delivery, it is very important to test the quality of steel pipe. The use of steel pipe is more and more extensive in industry, agriculture and various fields of people's lives. In the production of steel pipe, the quality of finished steel pipe is tested before it is put into use; The existing publication number is: CN117029718B, which belongs to the field of precision steel pipe detection, and includes a rolling mechanism for driving the steel pipe to be tested to roll by itself, and also includes an inner cavity scanning mechanism and an outer wall scanning mechanism. The inner cavity scanning mechanism can scan the inner cavity of the steel pipe to be tested to obtain data, and the outer wall scanning mechanism can scan the outer wall and port of the steel pipe to be tested to obtain data. The rolling mechanism includes two rotating shafts that can rotate in the same direction, and sleeves are arranged on the two rotating shafts. The steel pipe to be tested is placed on the two sleeves, and the steel pipe to be tested is placed on the rolling mechanism and sleeved on the inner cavity scanning mechanism. The inner wall of the steel pipe is scanned by the inner cavity scanning mechanism to obtain the inner wall data of the steel pipe, and the outer surface and port data of the outer wall scanning mechanism are obtained by three-dimensional scanning, so as to intuitively obtain the steel pipe parameters and ensure that each section of the steel pipe can meet the use standards; Currently, ultrasonic testing is mainly used for seamless steel pipes. However, during the production process of seamless steel pipes, the complex internal structure of the material can easily mask the signals of tiny defects, resulting in missed detection or misjudgment. Summary of the invention

[0003] The purpose of the present invention is to provide a four-side detection device for a stainless steel seamless pipe to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: A four-side detection device for a stainless steel seamless pipe is provided, comprising a workbench, a pendulum assembly is fixedly connected to the workbench, and a detection mechanism is also fixedly connected to the workbench, and the detection mechanism is arranged on one side of the pendulum assembly; The detection mechanism includes: A lateral movement component is fixedly connected to a workbench, a passive displacement component is fixedly connected to the lateral movement component, one end of the passive displacement component is slidably connected to a displacement amplification component, and a marking pen component is fixedly connected to the displacement amplification component.

[0005] Furthermore, the pendulum assembly includes: A connecting frame, the bottom end of which is fixedly connected to the workbench, a rotating shaft 1 is rotatably connected to the connecting frame, the rotating shaft 1 is fixedly connected to one end of the pendulum body, one end of the rotating shaft 1 is fixedly connected to a turntable 1, a plurality of grooves are provided on the outer edge of the turntable 1, a rotating shaft 2 is also rotatably connected to the connecting frame, one end of the rotating shaft 2 is fixedly connected to a turntable 2, a protrusion is fixedly connected at the edge of the turntable 2, and the other end of the rotating shaft 2 is fixedly connected to a handwheel 1.

[0006] Furthermore, the lateral movement component includes: A slide rail 1, wherein the slide rail 1 is fixedly connected to the workbench, a slider 1 is slidably connected to the slide rail 1, the slider 1 is fixedly connected to the lower end of the connecting platform, the slider 1 cooperates with a screw rod 1 through a thread, the screw rod 1 is rotatably connected to the workbench, and one end of the screw rod 1 is fixedly connected to a hand wheel 2.

[0007] Furthermore, the passive displacement component includes: A leaf spring, both ends of which are fixedly connected to a connecting platform, a connecting shaft is fixedly connected to the leaf spring, one end of the connecting shaft is fixedly connected to a contact sheet, the other end of the connecting shaft is fixedly connected to a sliding rod, and a spring 1 is sleeved on the connecting shaft.

[0008] Furthermore, the displacement amplification component includes: A rotating rod, one end of which is provided with a slide groove, the slide rod is slidably connected in the slide groove, the rotating rod is rotatably connected to the connecting platform, and the other end of the rotating rod is fixedly connected with a gear ring, which meshes with the gear.

[0009] Furthermore, the marking pen assembly comprises: Screw rod 2 is fixedly connected to the gear, screw rod 2 is rotatably connected to the connecting platform, screw rod 2 cooperates with the nut through a thread, one side of the nut is fixedly connected to an angle rod, the other side of the nut is fixedly connected to a slider 2, the slider 2 is slidably connected to the slide rail 2, the slide rail 2 is fixedly connected to the connecting platform, and the connecting platform is also fixedly connected to an oil storage tank.

[0010] Furthermore, the marking pen assembly also includes: An oil storage pipe, a control core is slidably connected inside the oil storage pipe, the upper end of the control core is fixedly connected to one end of spring 2, the other end of spring 2 is fixedly connected to the top of the oil storage pipe, the lower end of the control core is fixedly connected to a top ball, an oil inlet is provided on the oil storage pipe, the oil storage tank is connected to the oil inlet through a hose, and the oil storage pipe is fixedly connected to the other end of the angle rod.

[0011] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects: 1. The steel pipe vibrates after being hit by the pendulum body. When the steel pipe vibrates, it affects the contact piece, causing the contact piece to transfer the vibration energy to the leaf spring, thereby causing the leaf spring to deform. When the leaf spring deforms, it drives the connecting shaft and the slide rod to move back and forth. When the slide rod reciprocates, it drives the rotating rod and the gear ring to rotate through the limiting effect of the slide groove. The gear rotates through the rotation of the gear ring and the meshing of the gear ring with the gear. When the gear rotates, it drives the screw rod 2 to rotate, thereby causing the nut to drive the angle rod and the slider 2 to slide on the slide rail 2. The angle rod moves up and down, driving the oil storage pipe, the spring 2 and the control core to move up and down. When moving upward, the top ball is away from the surface of the steel pipe, and the spring moves upward. The second spring is reset, and the top ball blocks the lower end of the oil storage pipe. When it moves downward, the top ball is pushed into the oil storage pipe by the steel pipe when it contacts the steel pipe. At this time, the ink in the oil storage pipe flows out to the steel pipe. If there are cracks or other defects such as pores on the steel pipe, its structural stiffness will change. When the steel pipe vibrates, these defects may affect its vibration mode, such as natural frequency, amplitude attenuation, etc., which will make the vibration trajectory of the steel pipe different, and thus make the trajectory of the ink flowing from the oil storage pipe to the steel pipe different. Alternatively, the defects of the steel pipe can also be judged by the rotation angle of the gear ring. This makes the inspection of the steel pipe more comprehensive and avoids missed inspections or misjudgments.

[0012] 2. After fixing the steel pipe on the workbench, turn the handwheel 1 to drive the shaft 2 and the turntable 2 to rotate. The turntable 2 drives the convex block to rotate when rotating. When the convex block rotates to the groove position, it drives the turntable 1 to rotate while continuing to rotate, and then drives the shaft 1 and the pendulum body to rotate. The height of the pendulum body is calculated by the angle of rotation of the handwheel 1. The height of the pendulum body rises differently for different steel pipes, and the angle of handwheel rotation is different. After adjusting the pendulum body to an appropriate height, release the handwheel to make the pendulum body hit the steel pipe. The device achieves efficient and accurate impact on the steel pipe through precise mechanical linkage design and height-adjustable pendulum system. Its beneficial effects are mainly reflected in the improvement of operation convenience, adaptability and production efficiency, while taking into account the control of safety and maintenance costs, and is simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0014] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the overall three-dimensional structure of the pendulum assembly of the present invention; Figure 3 It is a schematic diagram of the overall three-dimensional structure of the lateral moving assembly of the present invention; Figure 4 It is a schematic diagram of the overall three-dimensional structure of the passive displacement assembly of the present invention; Figure 5 It is a schematic diagram of the overall three-dimensional structure of the displacement amplification component of the present invention; Figure 6 It is a schematic diagram of the overall three-dimensional structure of the screw rod 2 of the present invention; Figure 7 It is a schematic diagram of the overall three-dimensional structure of the angle rod of the present invention; Figure 8 This is a front view of the overall three-dimensional structure of the oil storage pipe of the present invention; Fig. 9 It is a schematic diagram of the overall three-dimensional structure of the control core of the present invention; Fig.10 It is a cross-sectional view of the overall three-dimensional structure of the oil storage pipe of the present invention; In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Workbench; 2. Pendulum assembly; 21. Connecting frame; 22. Rotating shaft 1; 23. Pendulum body; 24. Turntable 1; 25. Rotating shaft 2; 26. Turntable 2; 27. Handwheel 1; 3. Detection mechanism; 31. Lateral movement assembly; 311. Slide rail 1; 312. Slider 1; 313. Connecting platform; 314. Screw rod 1; 315. Handwheel 2; 32. Passive displacement assembly; 321. Leaf spring; 322. Connecting shaft; 323. Contact piece; 324. Slide rod; 325. Spring 1; 33. Displacement amplification assembly; 331. Rotating rod; 332. Slide groove; 333. Gear ring; 334. Gear; 34. Marking pen assembly; 341. Screw rod 2; 342. Nut; 343. Angle rod; 344. Slide rod 2; 345. Slide rail 2; 346. Oil storage tank; 347. Oil storage pipe; 3471. Oil inlet; 348. Control core; 349. Spring 2. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the solution of the present application, the following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0017] Reference Figure 1 As shown, a four-side detection device for a stainless steel seamless pipe comprises a workbench 1, a pendulum assembly 2 is fixedly connected to the workbench 1, and a detection mechanism 3 is also fixedly connected to the workbench 1, and the detection mechanism 3 is arranged on one side of the pendulum assembly 2; wherein The detection mechanism 3 includes: A lateral movement component 31 is fixedly connected to the workbench 1, a passive displacement component 32 is fixedly connected to the lateral movement component 31, one end of the passive displacement component 32 is slidably connected to a displacement amplification component 33, and a marking pen component 34 is fixedly connected to the displacement amplification component 33.

[0018] When inspecting a steel pipe, first fix the steel pipe on the workbench 1, manually adjust the height of the pendulum assembly 2, and then release it. The pendulum hits the steel pipe, causing it to vibrate. When the steel pipe vibrates, it continuously contacts the passive displacement assembly 32, causing the passive displacement assembly 32 to move. The displacement amplification assembly 33 amplifies the distance moved by the passive displacement assembly 32, causing the marking pen assembly 34 to move longitudinally. The position of the entire inspection mechanism 3 can be adjusted through the lateral movement assembly 31 to achieve inspection of different positions on a steel pipe. When there are cracks or pores on the steel pipe, the vibration mode of the steel pipe changes, thereby detecting and marking defects on the steel pipe.

[0019] Reference Figure 2 As shown, the pendulum assembly 2 includes: A connecting frame 21, the bottom end of which is fixedly connected to the workbench 1, a rotating shaft 22 is rotatably connected to the connecting frame 21, the rotating shaft 22 is fixedly connected to one end of a pendulum body 23, one end of the rotating shaft 22 is fixedly connected to a turntable 24, a plurality of grooves are provided on the outer edge of the turntable 24, a rotating shaft 25 is also rotatably connected to the connecting frame 21, one end of the rotating shaft 25 is fixedly connected to a turntable 26, a protrusion is fixedly connected at the edge of the turntable 26, and the other end of the rotating shaft 25 is fixedly connected to a handwheel 27.

[0020] After the steel pipe is fixed on the workbench 1, the handwheel 27 is turned to drive the rotating shaft 25 and the turntable 26 to rotate. The turntable 26 drives the protrusion to rotate when rotating. When the protrusion rotates to the groove position, it drives the turntable 24 to rotate while continuing to rotate, and then drives the rotating shaft 22 and the pendulum body 23 to rotate. The rising height of the pendulum body 23 is calculated by the rotation angle of the handwheel 27. The rising height of the pendulum body 23 is different for different steel pipes, and the rotation angle of the handwheel is different. After the pendulum body 23 is adjusted to an appropriate height, the handwheel is released to make the pendulum body 23 hit the steel pipe.

[0021] Reference Figure 3 As shown, the lateral movement component 31 includes: A slide rail 311 is fixedly connected to the workbench 1, a slider 312 is slidably connected to the slide rail 311, the slider 312 is fixedly connected to the lower end of the connecting platform 313, the slider 312 cooperates with a screw rod 314 through a thread, the screw rod 314 is rotatably connected to the workbench 1, and one end of the screw rod 314 is fixedly connected to a hand wheel 2 315.

[0022] By rotating the second hand wheel 315 , the screw rod 1 314 is rotated, and then the slider 1 312 drives the connecting platform 313 to slide on the slide rail 1 311 .

[0023] Reference Figure 4 As shown, the passive displacement component 32 includes: The leaf spring 321 has two ends fixedly connected to the connecting platform 33, a connecting shaft 322 is fixedly connected to the leaf spring 321, one end of the connecting shaft 322 is fixedly connected to a contact piece 323, the other end of the connecting shaft 322 is fixedly connected to a sliding rod 324, and a spring 325 is sleeved on the connecting shaft 322.

[0024] The steel pipe vibrates after being hit by the pendulum body 23. When the steel pipe vibrates, it affects the contact piece 323, so that the contact piece 323 transfers the vibration energy to the leaf spring 321, thereby causing the leaf spring 321 to deform. When the leaf spring 321 is deformed, it drives the connecting shaft 322 and the sliding rod 324 to move back and forth.

[0025] Reference Figure 5 As shown, the displacement amplification component 33 includes: The rotating rod 331 has a sliding groove 332 at one end, and the sliding rod 324 is slidably connected in the sliding groove 332. The rotating rod 331 is rotatably connected to the connecting platform 33, and the other end of the rotating rod 331 is fixedly connected to a gear ring 333, and the gear ring 333 is meshed with a gear 334.

[0026] When the slide rod 324 reciprocates, the limiting effect of the slide slot 332 drives the rotating rod 331 and the gear ring 333 to rotate. The gear 334 rotates through the rotation of the gear ring 333 and the meshing of the gear ring 333 with the gear 334.

[0027] Reference Figure 6 As shown, the marking pen assembly 34 includes: Screw rod 2 341, screw rod 2 341 is fixedly connected to gear 334, screw rod 2 341 is rotatably connected to connecting platform 33, screw rod 2 341 cooperates with nut 342 through thread, one side of nut 342 is fixedly connected to angle rod 343, the other side of nut 342 is fixedly connected to slider 2 344, slider 2 344 is slidably connected to slide rail 2 345, slide rail 2 345 is fixedly connected to connecting platform 33, and connecting platform 33 is also fixedly connected to oil storage tank 346.

[0028] When the gear 334 rotates, it drives the second screw rod 341 to rotate, so that the nut 342 drives the angle rod 343 and the second slide block 344 to slide on the second slide rail 345. The marking pen assembly 34 also includes: Reference Figure 7-10 As shown, an oil storage pipe 347 is slidably connected with a control core 348 in the oil storage pipe 347, the upper end of the control core 348 is fixedly connected to one end of a spring 349, the other end of the spring 349 is fixedly connected to the top of the oil storage pipe 347, the lower end of the control core 348 is fixedly connected to a top ball, an oil inlet 3471 is provided on the oil storage pipe 347, the oil storage tank 346 is connected to the oil inlet 3471 through a hose, and the oil storage pipe 347 is fixedly connected to the other end of the angle rod 343.

[0029] The angle rod 343 moves up and down to drive the oil storage pipe 347, spring 2 349 and control core 348 to move up and down. When moving upward, the top ball is away from the surface of the steel pipe, and spring 2 349 is reset. At this time, the top ball blocks the lower end of the oil storage pipe 347. When moving downward, when the top ball contacts the steel pipes, the top ball is pushed into the inside of the oil storage pipe 347 by the steel pipe. At this time, the ink in the oil storage pipe 347 flows out onto the steel pipe.

[0030] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A four-side detection device for stainless steel seamless pipes, characterized in that: The invention comprises a workbench (1), to which a pendulum assembly (2) is fixedly connected, and to which a detection mechanism (3) is also fixedly connected, wherein the detection mechanism (3) is arranged on one side of the pendulum assembly (2); wherein The detection mechanism (3) comprises: A lateral movement component (31), the lateral movement component (31) is fixedly connected to the workbench (1), a passive displacement component (32) is fixedly connected to the lateral movement component (31), one end of the passive displacement component (32) is slidably connected to a displacement amplification component (33), and a marking pen component (34) is fixedly connected to the displacement amplification component (33).

2. A four-side detection device for stainless steel seamless pipe according to claim 1, characterized in that: The pendulum assembly (2) comprises: A connecting frame (21), the bottom end of which is fixedly connected to the workbench (1), a rotating shaft (22) being rotatably connected to the connecting frame (21), the rotating shaft (22) being fixedly connected to one end of a pendulum body (23), one end of which is fixedly connected to a turntable (24), a plurality of grooves being provided on the outer edge of the turntable (24), a rotating shaft (25) being rotatably connected to the connecting frame (21), one end of which is fixedly connected to a turntable (26), a protrusion being fixedly connected to the edge of the turntable (26), and the other end of which is fixedly connected to a handwheel (27).

3. A four-side detection device for stainless steel seamless pipe according to claim 2, characterized in that: The lateral movement component (31) comprises: A slide rail (311), wherein the slide rail (311) is fixedly connected to the workbench (1), a slider (312) is slidably connected to the slide rail (311), the slider (312) is fixedly connected to the lower end of the connecting platform (313), the slider (312) cooperates with a screw rod (314) through a thread, the screw rod (314) is rotatably connected to the workbench (1), and one end of the screw rod (314) is fixedly connected to a hand wheel (315).

4. A four-side detection device for stainless steel seamless pipe according to claim 3, characterized in that: The passive displacement component (32) comprises: A leaf spring (321), wherein both ends of the leaf spring (321) are fixedly connected to a connecting platform (33), a connecting shaft (322) is fixedly connected to the leaf spring (321), one end of the connecting shaft (322) is fixedly connected to a contact sheet (323), the other end of the connecting shaft (322) is fixedly connected to a sliding rod (324), and a spring 1 (325) is sleeved on the connecting shaft (322).

5. A four-side detection device for stainless steel seamless pipe according to claim 4, characterized in that: The displacement amplification component (33) comprises: A rotating rod (331), one end of which is provided with a slide groove (332), the slide rod (324) is slidably connected in the slide groove (332), the rotating rod (331) is rotatably connected to the connecting platform (33), the other end of the rotating rod (331) is fixedly connected with a gear ring (333), and the gear ring (333) is meshed with a gear (334).

6. A four-side detection device for stainless steel seamless pipe according to claim 5, characterized in that: The marking pen assembly (34) comprises: A second screw rod (341), the second screw rod (341) is fixedly connected to the gear (334), the second screw rod (341) is rotatably connected to the connecting platform (33), the second screw rod (341) is engaged with a nut (342) through a thread, one side of the nut (342) is fixedly connected to an angle rod (343), the other side of the nut (342) is fixedly connected to a second slider (344), the second slider (344) is slidably connected to a second slide rail (345), the second slide rail (345) is fixedly connected to the connecting platform (33), and the connecting platform (33) is also fixedly connected to an oil storage tank (346).

7. A four-side detection device for a stainless steel seamless pipe according to claim 6, characterized in that: The marking pen assembly (34) further comprises: An oil storage pipe (347), wherein a control core (348) is slidably connected inside the oil storage pipe (347), the upper end of the control core (348) is fixedly connected to one end of a second spring (349), the other end of the second spring (349) is fixedly connected to the top of the oil storage pipe (347), the lower end of the control core (348) is fixedly connected to a top ball, an oil inlet (3471) is provided on the oil storage pipe (347), the oil storage tank (346) is connected to the oil inlet (3471) via a hose, and the oil storage pipe (347) is fixedly connected to the other end of the angle rod (343).

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