A quality inspection equipment for cold drawn seamless steel pipe

Abstract

The present invention discloses a quality inspection device for cold-drawn seamless steel pipes, which belongs to the field of mechanical stress testing devices, and includes a pressure collar assembly and a tension collar assembly. One end of the tension collar assembly is plugged into the interior of the pressure collar assembly, and a driving ring is plugged into the interior of the pressure collar assembly. A wave slope plate is fixed to the inner wall of the driving ring. The present invention arranges the wave slope plate and the tension plate. When the driving motor is running, the wave slope plate can be driven to rotate, and then the lower pressure seat can move up and down in coordination with the opening and closing of the tension plate. Pressure and tension can be applied to the steel pipe at the same time, so that the wound on the steel pipe is quickly exposed, providing favorable conditions for ensuring the reliability of quality inspection. At the same time, applying pressure and tension to the steel pipe can extend the circumference of the steel pipe, so that the wound can be expanded and extended, so that the probe device can accurately detect the more hidden wound, so that the accuracy of the inspection is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical stress testing devices, in particular to quality testing equipment for cold-drawn seamless steel pipes. Background Art

[0002] Cold drawing is one of the main production methods of steel pipes. Cold-drawn seamless steel pipes have the advantages of small inner and outer diameter wall thickness precision error, high material utilization rate and small batch production. In addition to ensuring the physical and chemical properties during production, cold-drawn seamless steel pipes must also undergo water pressure, curling, expansion and flattening tests after production. Existing cold-drawn seamless steel pipe quality inspection equipment often uses probes to detect wounds on the surface of cold-drawn seamless steel pipes. However, since some wounds are closed and restored due to metal stress, the probe cannot fully detect the location of the wound, and the accuracy of the wound detection cannot be guaranteed. In addition, the cold-drawn seamless steel pipe quality inspection equipment cannot expose hidden problems on the steel pipe by applying pressure or tension alone, which makes it impossible to guarantee the reliability of the inspection equipment when inspecting the quality of the steel pipe. Summary of the invention

[0003] The purpose of the present invention is to solve the problem in the prior art that the probe cannot detect the partially recovered wound and cannot expose the hidden problems on the steel pipe, and to propose a quality inspection device for cold-drawn seamless steel pipe.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A quality inspection device for cold-drawn seamless steel pipes comprises a pressure collar assembly and a tension collar assembly, one end of the tension collar assembly is inserted into the interior of the pressure collar assembly, a driving ring is inserted into the interior of the pressure collar assembly, an undulating slope panel is fixed to the inner wall of the driving ring, a power assembly is inserted into the inner wall of a through hole opened on the side of the pressure collar assembly, the power assembly is connected to the driving ring, a progressive assembly is provided at one end of the power assembly, a limiting plate is fixed between the progressive assembly and the pressure collar assembly, a lower pressure seat is inserted into the inner wall of the through hole opened on the inner side wall of the pressure collar assembly, the top of the lower pressure seat is tightly fitted with the lower surface of the undulating slope panel, a pressure assembly is provided inside the lower pressure seat, both sides of the lower pressure seat are meshedly connected with detection assemblies, one end of the detection assembly is connected to the pressure collar assembly, and one end of the tension collar assembly A tension plate is fixed, a partition plate is inserted into the interior of the tension plate, a telescopic head is inserted into the interior of the partition plate, pressure sensing heads are fixed between the upper and lower surfaces of the telescopic head and the inner wall of the partition plate, a roller is hinged on the top of the telescopic head through an axis, a pump body is inserted into the side of the tension plate, the partition plate divides the cavity of the tension plate into two parts, and the two ends of the pump body are respectively connected with the two cavities inside the tension plate, a power assembly is provided inside the tension ring assembly, and a translation assembly is fixed on the side of the power assembly connected to the tension ring assembly, a flexible plate is fixed on the side of the translation assembly, a progressive assembly is provided at one end of the flexible plate, and a universal assembly is provided between the progressive assembly connected to the flexible plate and the power assembly connected to the tension ring assembly, and one side of the tension ring assembly is connected to the power assembly through a positioning assembly.

[0006] Preferably, the pressure collar assembly comprises an outer collar sleeved on the outer side of the driving ring, a sealing ring is fixed to the inner wall of the outer collar, and the sealing ring is connected to the lower pressure seat.

[0007] Preferably, the tension collar assembly comprises a forward-rotating collar, an inner wall of which is plugged with a reverse-rotating collar, and a reverse gear is meshingly connected between the inner side of the forward-rotating collar and the outer side of the reverse-rotating collar.

[0008] Preferably, the power assembly comprises a sub-gear meshedly connected between the inner side of the outer sleeve and the outer side of the drive ring and a sub-gear meshedly connected to the inner wall of the reversing sleeve, and a drive motor is fixed to one end of the sub-gear.

[0009] Preferably, the progressive component includes five telescopic rings, four of which are arranged in a circular array with the central axis of the outer ring as the axis, and the inner wall of the telescopic ring is connected to the output end of the driving motor through a wire groove, one end of the telescopic ring is sleeved with a limiting cap, a reset spring is fixed between the inner bottom wall of the limiting cap and the surface of the telescopic ring, a lifting groove is opened on the outer side of the telescopic ring, a lifting column is inserted into the inner wall of the lifting groove, a support frame is inserted into the inner wall of the lifting column, and one end of the support frame is fixed to one end of the limiting cap, a folding plate is hinged between the inner side walls of the support frame through an axis, and the outer axis side of the folding plate is meshed and connected to the surface of the lifting column, and the two ends of the limiting plate are respectively fixed to one side of the outer ring and one end surface of the limiting cap.

[0010] Preferably, the pressure-applying assembly comprises a pressure-applying head plugged into the inner wall of the lower pressure seat, and a hydraulic rod is fixed between one end of the pressure-applying head and the inner bottom wall of the lower pressure seat.

[0011] Preferably, the detection component includes a direction-changing gear meshingly connected to both sides of the lower pressure seat, both ends of the direction-changing gear are hinged with a mounting frame through an axis, the inner wall of the mounting frame is hinged with a tensioning shaft through an axis, one side of the tensioning shaft is meshingly connected to the direction-changing gear, an arc rod is inserted into the inner wall of the tensioning shaft, one end of the arc rod is fixed with a wave transmission rod, and a vertical plate is fixed between one end of the wave transmission rod and one side of the tensioning shaft.

[0012] Preferably, the translation assembly includes a cross fixed to the outside of one of the driving motors, a telescopic rod is inserted into the inner wall of the groove of the cross, a smooth wheel is hinged to the inner wall of one end of the telescopic rod through an axis, a second return spring is fixed between the bottom of the telescopic rod and the inner bottom wall of the groove of the cross, and the side of the cross is fixed to one end of the flexible plate, and the other end of the flexible plate is fixed to the surface of one of the limit caps.

[0013] Preferably, the universal assembly comprises a snap-fit ​​frame connected to the inner wall of one of the telescopic rings through a wire groove, a universal ball head is inserted into the inner wall of the snap-fit ​​frame, and one end of the universal ball head is fixed to the output end of one of the drive motors.

[0014] Preferably, the positioning assembly includes an arc plate fixed to one side of the forward rotation ring and the reverse rotation ring respectively, one end of the arc plate is connected to a disc through an annular groove, the inner wall of the disc is fixed to the outside of one end of one of the driving motors, and the shaft end of the reverse gear is inserted into the inner wall of the disc.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention arranges a wave slope panel and a tension plate. When the driving motor is running, the wave slope panel can be driven to rotate, and then the lower pressure seat can move up and down in coordination with the opening and closing of the tension plate. Pressure and tension can be applied to the steel pipe at the same time, so that the wound on the steel pipe can be quickly exposed, providing favorable conditions for ensuring the reliability of quality inspection. At the same time, applying pressure and tension to the steel pipe can extend the circumference of the steel pipe and expand and extend the wound, so that the probe equipment can accurately detect relatively hidden wounds and ensure the accuracy of the inspection.

[0017] 2. The present invention arranges the arc rod and the telescopic head. When the arc plate and the telescopic head rotate with the tension plate and the tensioning shaft, the smoothness, wall thickness and levelness of the inner and outer walls of the steel pipe can be detected. The quality of each part of the steel pipe can be accurately and effectively detected under the support of tension and pressure, thereby ensuring the reliability of the steel pipe quality detection.

[0018] 3. The present invention can fix the inner and outer ring assemblies on the outside and inside of the steel pipe by setting the pressure head and the telescopic head. Firstly, it can facilitate quality inspection by applying pressure or tension on the inner and outer walls of the steel pipe. Secondly, it can serve as a support member of the device so that the device can adapt to bent pipes and straight pipes, thereby improving the adaptability of the device to steel pipe quality inspection.

[0019] 4. The present invention can make the device change direction and move forward in a bent steel pipe by setting the engaging frame and the universal ball head, thereby providing reliable technical support for the device to meet the bent pipe quality inspection and further improving the adaptability of the device to steel pipe quality inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a quality inspection device for cold-drawn seamless steel pipes proposed by the present invention;

[0021] Figure 2 A schematic diagram of the explosion structure at the sealing ring of a quality inspection device for cold-drawn seamless steel pipe proposed by the present invention;

[0022] Figure 3 This is a structural schematic diagram of a clamping frame of a quality inspection device for cold-drawn seamless steel pipes proposed by the present invention;

[0023] Figure 4 This is a structural schematic diagram of a driving motor of a quality inspection device for cold-drawn seamless steel pipes proposed by the present invention;

[0024] Figure 5 A schematic diagram of the explosion structure at the hydraulic rod of a quality inspection device for cold-drawn seamless steel pipes proposed by the present invention;

[0025] Figure 6 This is a structural schematic diagram of the reverse gear of a quality inspection device for cold-drawn seamless steel pipes proposed by the present invention;

[0026] Figure 7 This is a schematic diagram of the cross-sectional structure of the forward rotating sleeve ring of a quality inspection device for cold-drawn seamless steel pipe proposed by the present invention;

[0027] Figure 8 A schematic diagram of the explosion structure at the reverse collar of a quality inspection device for cold-drawn seamless steel pipe proposed by the present invention;

[0028] Fig. 9 The present invention provides a schematic diagram of the cross-sectional structure of a driving ring of a quality inspection device for cold-drawn seamless steel pipes.

[0029] In the figure: 1. driving ring; 2. wave ramp panel; 3. limit plate; 4. lower pressure seat; 5. tension plate; 6. partition plate; 7. telescopic head; 8. pressure sensor head; 9. roller; 10. pump body; 11. flexible plate; 12. outer sleeve; 13. sealing ring; 14. forward sleeve; 15. reverse sleeve; 16. reverse gear; 17. sub-gear; 18. driving motor; 19. telescopic ring; 20. limit cap; 21. reset spring ; 22. Lifting groove; 23. Lifting column; 24. Support frame; 25. Folding plate; 26. Pressure head; 27. Hydraulic rod; 28. Changing gear; 29. ​​Mounting frame; 30. Opening and closing axis; 31. Arc rod; 32. Wave transmission rod; 33. Vertical plate; 34. Cross; 35. Telescopic rod; 36. Smooth wheel; 37. Second return spring; 38. Clamping frame; 39. Universal ball head; 40. Arc plate; 41. Disc. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Example, see Figure 1-Figure 9 , a quality inspection device for cold-drawn seamless steel pipes, comprising a pressure sleeve assembly, further comprising an outer sleeve 12 sleeved on the outside of a driving ring 1, a sealing ring 13 is fixed to the inner wall of the outer sleeve 12, and the sealing ring 13 is connected to a lower pressing seat 4;

[0032] The further advantage of adopting the above method is that the driving ring 1 can be covered by the outer ring 12 and the sealing ring 13, so that the driving ring 1 can be driven by the secondary gear 17 to rotate and the lower pressing seat 4 can be moved up and down, so that the tension and pressure are always in the cross position without interfering with each other;

[0033] And a tension ring assembly, further the tension ring assembly includes a forward rotation ring 14, the inner wall of the forward rotation ring 14 is inserted with a reverse rotation ring 15, and a reverse gear 16 is meshed and connected between the inner side of the forward rotation ring 14 and the outer side of the reverse rotation ring 15.

[0034] The further advantage of adopting the above method is that the forward-rotating ring 14 and the reverse-rotating ring 15 are placed crosswise, and can complete forward and reverse rotation under the drive of the secondary gear 17, thereby making the forward-rotating ring 14 and the reverse-rotating ring 15 rotate together and apart to provide tension to various parts of the inner wall of the steel pipe.

[0035] It is worth noting that: when the upper and lower ends of the forward rotating ring 14 and the reverse rotating ring 15 are opened, the lower pressure seat 4 can move downward under the action of the wave slope panel 2 to apply pressure on the upper and lower ends of the steel pipe, and at this time, the left and right ends of the forward rotating ring 14 and the reverse rotating ring 15 are close to each other, and the lower pressure seat 4 located at the left and right ends can move to the left and right ends under the action of the wave slope panel 2 to avoid overlapping with the tension provided by the tension plate 5.

[0036] One end of the tension ring assembly is inserted into the interior of the pressure ring assembly, a driving ring 1 is inserted into the interior of the pressure ring assembly, a wave slope panel 2 is fixed to the inner wall of the driving ring 1, and a power assembly is inserted into the inner wall of the through hole opened on the side of the pressure ring assembly. The power assembly further includes a sub-gear 17 meshingly connected between the inner side of the outer ring 12 and the outer side of the driving ring 1 and a sub-gear 17 meshingly connected to the inner wall of the reversing ring 15, and a driving motor 18 is fixed to one end of the sub-gear 17.

[0037] A further advantage of adopting the above method is that the drive motor 18 can provide a power source for the rotation of the auxiliary gear 17, thereby causing the pressure collar assembly and the tension collar assembly to synchronously apply tension and pressure to the inner and outer walls of the steel pipe. The drive motor 18 is a prior art and will not be described in detail here.

[0038] The power assembly is connected to the driving ring 1, and a progressive assembly is provided at one end of the power assembly. The progressive assembly further includes five telescopic rings 19, four of which are arranged in a circular array with the central axis of the outer ring 12 as the axis, and the inner wall of the telescopic ring 19 is connected to the output end of the driving motor 18 through a wire groove, one end of the telescopic ring 19 is sleeved with a limiting cap 20, and a reset spring 21 is fixed between the inner bottom wall of the limiting cap 20 and the surface of the telescopic ring 19, and a lifting groove 22 is opened on the outer side of the telescopic ring 19, and a lifting column 23 is inserted into the inner wall of the lifting groove 22, and a support frame 24 is inserted into the inner wall of the lifting column 23, and one end of the support frame 24 is fixed to one end of the limiting cap 20, and a folding plate 25 is hinged between the inner side walls of the support frame 24 through an axis, and the outer axis side of the folding plate 25 is meshed and connected to the surface of the lifting column 23, and the two ends of the limiting plate 3 are respectively fixed to one side of the outer ring 12 and one end surface of the limiting cap 20.

[0039] A further advantage of adopting the above method is that the progressive assembly can change the position of the telescopic ring 19 under the drive of the drive motor 18, so that the folding plate 25 is stretched on the inner wall of the steel pipe or clamped on the outer wall of the steel pipe. When the drive motor 18 is reversed to eliminate the tension and pressure on the steel pipe, the telescopic ring 19 is reset and the pressure sleeve ring assembly and the tension sleeve ring assembly can be driven by the reset spring 21 to slide forward to the next test position of the steel pipe to detect the quality of the steel pipe.

[0040] It is worth noting that due to the setting of the lifting groove 22, the front section of the lifting column 23 will not move downward during the resetting process of the telescopic ring 19. After the bottom of the lifting column 23 slides horizontally to the inclined surface of the lifting groove 22, the lifting column 23 will move downward, thereby allowing the folding plate 25 to be used as a support when the pressure collar assembly and the tension collar assembly slide on the steel pipe. After completing the sliding step on the steel pipe, the folding plate 25 can be retracted away from the inner and outer walls of the steel pipe, providing conditions for the next forward sliding of the device.

[0041] A limiting plate 3 is fixed between the progressive assembly and the pressure collar assembly, a lower pressure seat 4 is inserted into the inner wall of the through hole opened in the inner wall of the pressure collar assembly, the top of the lower pressure seat 4 is tightly fitted with the lower surface of the wave slope panel 2, a pressure assembly is provided inside the lower pressure seat 4, and the pressure assembly further includes a pressure head 26 inserted into the inner wall of the lower pressure seat 4, and a hydraulic rod 27 is fixed between one end of the pressure head 26 and the inner bottom wall of the lower pressure seat 4.

[0042] A further advantage of adopting the above method is that the pressure head 26 can be driven by the hydraulic rod 27 to apply pressure to the outer wall of the steel pipe, and when the pressure head 26 contracts, the pressure collar assembly and the tension collar assembly can be driven by the advancement assembly to advance to the next detection position, and the ends of the telescopic head 7 and the pressure head 26 are provided with probes, through which the wound on the surface of the steel pipe can be detected.

[0043] Both sides of the lower pressure seat 4 are meshedly connected with detection components, and the detection component further includes a changing gear 28 meshedly connected to both sides of the lower pressure seat 4, and both ends of the changing gear 28 are hinged with a mounting frame 29 through an axis, and the inner wall of the mounting frame 29 is hinged with a tensioning shaft 30 through an axis, one side of the tensioning shaft 30 is meshed with the changing gear 28, and an arc rod 31 is inserted into the inner wall of the tensioning shaft 30, and a wave transmission rod 32 is fixed to one end of the arc rod 31, and a vertical plate 33 is fixed between one end of the wave transmission rod 32 and one side of the tensioning shaft 30.

[0044] A further advantage of adopting the above method is that the direction-changing gear 28 can drive one end of the arc rod 31 to fit against the outer wall of the steel pipe to complete the opening and closing action during the up and down movement of the lower pressure seat 4, thereby being able to detect the smoothness of the outer surface of the steel pipe. The wave transmission rod 32 is a pressure sensor. As a prior art, it will not be described in detail here. The wave transmission rod 32 can indirectly reflect the smoothness of the outer wall of the steel pipe through the pressure fluctuation value fed back by the arc rod 31.

[0045] One end of the detection component is connected to the pressure collar component, and one end of the tension collar component is fixed with a tension plate 5, a partition plate 6 is inserted inside the tension plate 5, a telescopic head 7 is inserted inside the partition plate 6, a pressure sensing head 8 is fixed between the upper and lower surfaces of the telescopic head 7 and the inner wall of the partition plate 6, a roller 9 is hinged on the top of the telescopic head 7 through an axis, a pump body 10 is inserted on the side of the tension plate 5, the partition plate 6 divides the cavity of the tension plate 5 into two parts, and the two ends of the pump body 10 are respectively connected to the two cavities inside the tension plate 5, and the tension collar component is provided with a dynamic A force component is provided, and a translation component is fixed on the side of the power component connected to the tension ring component. The translation component further includes a cross 34 fixed to the outside of one of the driving motors 18, a telescopic rod 35 is inserted into the inner wall of the groove of the cross 34, a smooth wheel 36 is hinged to the inner wall of one end of the telescopic rod 35 through an axis, a second return spring 37 is fixed between the bottom of the telescopic rod 35 and the inner bottom wall of the groove of the cross 34, and the side of the cross 34 is fixed to one end of the flexible plate 11, and the other end of the flexible plate 11 is fixed to the surface of one of the limit caps 20.

[0046] A further advantage of adopting the above method is that the smooth wheel 36 can be supported on the inner wall of the steel pipe by the telescopic rod 35, and when the telescopic head 7 is retracted, the smooth wheel 36 can roll on the inner wall of the steel pipe driven by the progressive assembly.

[0047] A flexible plate 11 is fixed to the side of the translation assembly, a progressive assembly is provided at one end of the flexible plate 11, and a universal assembly is provided between the progressive assembly connected to the flexible plate 11 and the power assembly connected to the tension ring assembly. Furthermore, the universal assembly includes a snap-fit ​​frame 38 connected to the inner wall of one of the telescopic rings 19 through a wire groove, a universal ball head 39 is inserted into the inner wall of the snap-fit ​​frame 38, and one end of the universal ball head 39 is fixed to the output end of one of the drive motors 18.

[0048] A further advantage of adopting the above method is that the snap-fit ​​frame 38 can be used to rotate one end of the universal ball head 39 up, down, left, and right. Since the groove at the connection between the universal ball head 39 and the snap-fit ​​frame 38 is wider than the snap-fit ​​frame 38, the process of rotating in all directions can be completed, so that the device located inside the steel pipe can turn at the curved part of the steel pipe.

[0049] One side of the tension ring assembly is connected to the power assembly through a positioning assembly. The positioning assembly further includes an arc plate 40 fixed to one side of the forward ring 14 and the reverse ring 15 respectively. One end of the arc plate 40 is connected to a disc 41 through an annular groove. The inner wall of the disc 41 is fixed to the outer side of one end of one of the driving motors 18, and the shaft end of the reverse gear 16 is inserted into the inner wall of the disc 41.

[0050] A further advantage of adopting the above method is that the disc 41 can limit the forward-rotating sleeve 14 and the reverse-rotating sleeve 15 so that the forward-rotating sleeve 14 and the reverse-rotating sleeve 15 can be sleeved together and rotated.

[0051] When the present invention is used, Figure 1 As shown, the steel pipe is inserted into the annular cavity between the lower pressing seat 4 and the tension plate 5, and then connected as shown in FIG. Figure 3 and Figure 5 The power supply of the pump body 10 and the hydraulic rod 27 shown respectively drives the pressure head 26 to fit against the outer wall of the steel pipe with a certain pressure, and the roller 9 to fit against the inner wall of the steel pipe with a certain tension;

[0052] When testing Figure 7 As shown, the driving motor 18 can drive the driving ring 1, the forward rotation ring 14 and the reverse rotation ring 15 to rotate through the secondary gear 17, thereby Figure 3 and Figure 5 As shown, the pressure heads 26 at the upper and lower ends move downward, the pressure heads 26 at the left and right ends shrink, the tension plates 5 at the upper and lower ends separate, and the tension plates 5 at the left and right ends close. During this process, the drive motor 18 at the middle position first rotates forward 90° and then reverses 180°, and the drive motor 18 surrounding the outside first rotates forward 10° and then reverses 20°. During this process, the arc rod 31 fits the outer wall of the steel pipe to complete the opening and closing action. The wave transmission rod 32 can feedback the smoothness of the steel pipe surface and whether there is a wound according to the force fluctuation. Figure 8 The telescopic head 7 shown moves up and down to squeeze the pressure sensing head 8, which can also provide feedback on the smoothness of the steel pipe surface. The comprehensive data can evaluate the wall thickness difference at various locations. The probes on the telescopic head 7 and the pressure head 26 can detect the wound.

[0053] As the device moves along the steel pipe, Figure 3 and Figure 5 The pump body 10 shown drives the telescopic head 7 to contract and the hydraulic rod 27 drives the pressure head 26 to contract. Then the telescopic ring 19 moves forward to drive the device to move forward one position on the steel pipe. When the lifting column 23 slides to the groove of the lifting groove 22, the pump body 10 and the hydraulic rod 27 are energized to drive the telescopic head 7 and the pressure head 26 to extend. Finally, the folding plate 25 contracts and separates from the inner and outer walls of the steel pipe. When encountering a bend in the steel pipe, the universal ball head 39 can rotate in the locking frame 38 to follow the bending direction of the steel pipe to change the direction of the forward rotation ring 14 and the reverse rotation ring 15.

[0054] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A quality inspection device for cold-drawn seamless steel pipes, comprising a pressure collar assembly and a tension collar assembly, characterized in that: One end of the tension ring assembly is inserted into the interior of the pressure ring assembly, and a driving ring (1) is inserted into the interior of the pressure ring assembly, and a wave slope panel (2) is fixed to the inner wall of the driving ring (1), and a power assembly is inserted into the inner wall of the through hole opened on the side of the pressure ring assembly, and the power assembly is connected to the driving ring (1). One end of the power assembly is provided with an advancement assembly, and a limiting plate (3) is fixed between the advancement assembly and the pressure ring assembly. A lower pressure seat (4) is inserted into the inner wall of the through hole opened on the inner side wall of the pressure ring assembly, and the top of the lower pressure seat (4) is tightly fitted with the lower surface of the wave slope panel (2). A pressure assembly is provided inside the lower pressure seat (4), and both sides of the lower pressure seat (4) are meshed and connected with detection assemblies. One end of the detection assembly is connected to the pressure ring assembly, and a tension plate (5) is fixed to one end of the tension ring assembly, and a partition plate (6) is inserted into the interior of the tension plate (5). A telescopic head (7) is inserted into the interior of the partition plate (6), and a pressure sensing head (8) is fixed between the upper and lower surfaces of the telescopic head (7) and the inner wall of the partition plate (6). A roller (9) is hinged to the top of the telescopic head (7) via an axis. A pump body (10) is inserted into the side of the tension plate (5). The partition plate (6) divides the cavity of the tension plate (5) into two parts, and the two ends of the pump body (10) are respectively connected to the two cavities inside the tension plate (5). A power component is provided inside the tension ring assembly, and a translation component is fixed to the side of the power component connected to the tension ring assembly. A flexible plate (11) is fixed to the side of the translation component. A progressive component is provided at one end of the flexible plate (11), and a universal component is provided between the progressive component connected to the flexible plate (11) and the power component connected to the tension ring assembly. One side of the tension ring assembly is connected to the power component via a positioning component.

2. The quality inspection equipment for cold drawn seamless steel pipe according to claim 1, characterized in that: The pressure collar assembly comprises an outer collar (12) sleeved on the outside of the driving ring (1), a sealing ring (13) being fixed to the inner wall of the outer collar (12), and the sealing ring (13) being connected to the lower pressure seat (4).

3. The quality inspection equipment for cold drawn seamless steel pipe according to claim 2, characterized in that: The tension collar assembly comprises a forward-rotating collar (14), a reverse-rotating collar (15) being inserted into the inner wall of the forward-rotating collar (14), and a reverse gear (16) being meshedly connected between the inner side of the forward-rotating collar (14) and the outer side of the reverse-rotating collar (15).

4. The quality inspection equipment for cold drawn seamless steel pipe according to claim 3, characterized in that: The power assembly comprises a sub-gear (17) meshingly connected between the inner side of the outer sleeve (12) and the outer side of the drive ring (1), and a sub-gear (17) meshingly connected to the inner wall of the reversing sleeve (15), and a drive motor (18) is fixed to one end of the sub-gear (17).

5. The quality inspection equipment for cold drawn seamless steel pipe according to claim 4, characterized in that: The progressive assembly comprises five telescopic rings (19), wherein four of the telescopic rings (19) are arranged in a circular array with the central axis of the outer ring (12) as the axis, and the inner wall of the telescopic ring (19) is connected to the output end of the drive motor (18) through a thread groove, one end of the telescopic ring (19) is sleeved with a limit cap (20), a return spring (21) is fixed between the inner bottom wall of the limit cap (20) and the surface of the telescopic ring (19), and a lifting groove (22) is opened on the outer side of the telescopic ring (19). A lifting column (23) is inserted into the inner wall of the lifting groove (22), and a support frame (24) is inserted into the inner wall of the lifting column (23), and one end of the support frame (24) is fixed to one end of the limiting cap (20), and a folding plate (25) is hinged between the inner side walls of the support frame (24) through an axis, and the outer axis side of the folding plate (25) is meshedly connected to the surface of the lifting column (23), and the two ends of the limiting plate (3) are respectively fixed to one side of the outer ring (12) and one end surface of the limiting cap (20).

6. The quality inspection equipment for cold drawn seamless steel pipe according to claim 5, characterized in that: The pressure assembly comprises a pressure head (26) inserted into the inner wall of the lower pressure seat (4), and a hydraulic rod (27) is fixed between one end of the pressure head (26) and the inner bottom wall of the lower pressure seat (4).

7. The quality inspection equipment for cold drawn seamless steel pipe according to claim 6, characterized in that: The detection component comprises a direction-changing gear (28) meshingly connected to both sides of the lower pressure seat (4), the two ends of the direction-changing gear (28) are hinged with a mounting frame (29) through an axis, the inner wall of the mounting frame (29) is hinged with a tensioning shaft (30) through an axis, one side of the tensioning shaft (30) is meshingly connected to the direction-changing gear (28), the inner wall of the tensioning shaft (30) is plugged with an arc rod (31), one end of the arc rod (31) is fixed with a wave transmission rod (32), and a vertical plate (33) is fixed between one end of the wave transmission rod (32) and one side of the tensioning shaft (30).

8. The quality inspection equipment for cold drawn seamless steel pipe according to claim 7, characterized in that: The translation assembly comprises a cross (34) fixed to the outside of one of the driving motors (18), a telescopic rod (35) is inserted into the inner wall of the groove of the cross (34), a smooth wheel (36) is hinged to the inner wall of one end of the telescopic rod (35) through an axis, a second return spring (37) is fixed between the bottom of the telescopic rod (35) and the inner bottom wall of the groove of the cross (34), and the side surface of the cross (34) is fixed to one end of the flexible plate (11), and the other end of the flexible plate (11) is fixed to the surface of one of the limit caps (20).

9. The quality inspection equipment for cold drawn seamless steel pipe according to claim 8, characterized in that: The universal assembly comprises a snap-fit ​​frame (38) connected to the inner wall of one of the telescopic rings (19) via a thread groove, a universal ball head (39) being inserted into the inner wall of the snap-fit ​​frame (38), and one end of the universal ball head (39) being fixed to the output end of one of the drive motors (18).

10. The quality inspection equipment for cold drawn seamless steel pipe according to claim 9, characterized in that: The positioning assembly comprises an arc plate (40) respectively fixed to one side of a forward-rotating collar (14) and a reverse-rotating collar (15); one end of the arc plate (40) is connected to a disc (41) via an annular groove; an inner wall of the disc (41) is fixed to the outer side of one end of one of the drive motors (18); and an axial end of the reverse gear (16) is plugged into the inner wall of the disc (41).

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