CN117968493A - An automatic continuous detection device for the outer diameter of stainless steel pipes - Google Patents

Abstract

The invention discloses an automatic continuous detection device for the outer diameter of a stainless steel pipe, which comprises a detection table and further comprises: the lifting body is used for driving the steel pipe to lift and is respectively arranged at the upper end and the lower end of the lifting stroke as a detection position and a material taking position; the cross beam is arranged above the lifting body, the lower side of the cross beam is movably provided with a sliding seat, a rotary seat is rotatably arranged on the sliding seat, and a go gauge and a no-go gauge are arranged on the rotary seat; and the driving assembly is used for driving the sliding seat to reciprocate and linkage the rotating seat to rotate. According to the invention, the lifting body is arranged, the steel pipes can be obtained from the material taking position and then sent to the detection position one by one, then the sliding seat can be driven to reciprocate through the driving assembly, then the go gauge or the no-go gauge corresponding to the detection position is driven to be close to the steel pipe for detection, and meanwhile, when the sliding seat is reset each time, the rotary seat can be linked to rotate so as to automatically switch the go gauge and the no-go gauge to alternately correspond to the detection position, so that continuous and automatic go-stop detection of the outer diameter of the end part of the steel pipe is realized.

Description

An automatic continuous detection device for the outer diameter of stainless steel pipes

Technical Field

The invention relates to the technical field of outer diameter detection devices, and in particular to an automatic and continuous detection device for the outer diameter of a stainless steel pipe.

Background technique

Go and no-go gauges are a type of gauge. As a measurement standard, they are used to inspect large quantities of products. Go and no-go gauges are also commonly used in outer diameter detection in stainless steel pipe production. Existing outer diameter detection devices can basically meet the needs of stainless steel pipe production, but there are still some shortcomings that need to be improved.

Patent document CN112033259A, published on December 4, 2020, discloses an automatic detection device for an outer diameter go/no-go gauge, including a driving mechanism and a feeding mechanism, an actuator is arranged between the driving mechanism and the feeding mechanism, the driving mechanism is connected and coordinated with the actuator, the actuator is provided with an outer diameter go/no-go gauge, the feeding mechanism is provided with a workpiece to be measured, the feeding mechanism transports the workpiece to be measured to the outer diameter go/no-go gauge end of the actuator for detection, and the axis of the workpiece to be measured is arranged colinearly with the axis of the outer diameter go/no-go gauge. In the present invention, under the cooperation of the driving cylinder and the feeding cylinder, the outer diameter go/no-go gauge automatically detects the workpiece, improves the detection efficiency, and meets the requirements for mass product detection; the elastic pressure of the spring is adjusted by tightening or loosening the adjusting screw nut, so that the go/no-go gauge is flexibly controlled by adjustable pressure, rigid collision is avoided, and material jamming is avoided.

As in the prior art of the above patent, an integrated go/no-go gauge is used for detection, but it is obvious that the integrated structure becomes unusable as a whole when any end is worn, and the cost is relatively high. When testing a split go/no-go gauge, both the go gauge and the no-go gauge need to be operated once on the detection structure. Therefore, an automatic continuous detection device for the outer diameter of a stainless steel pipe is urgently needed to solve the above problem.

Summary of the invention

The purpose of the present invention is to provide an automatic continuous detection device for the outer diameter of a stainless steel pipe to solve the above-mentioned deficiencies in the prior art.

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

An automatic continuous detection device for the outer diameter of a stainless steel pipe comprises a detection platform, and also comprises: a lifting body, which is movably arranged on the detection platform and is used to drive the steel pipe to rise and fall, and the upper and lower ends of the lifting stroke are respectively arranged as a detection position and a material taking position; a crossbeam, which is arranged above the lifting body, and a slide seat is movably arranged on the lower side of the crossbeam, a rotary seat is rotatably arranged on the slide seat, and a go gauge and a stop gauge are arranged on the rotary seat; a driving component, which is used to drive the slide seat to reciprocate, and when the slide seat completes a back and forth movement, the rotary seat is linked to rotate to alternately correspond the go gauge and the stop gauge to the detection position.

Preferably, the rotation axis of the rotary seat is set at an angle of 45° with the vertical direction, and the central axes of the go gauge and the stop gauge intersect vertically and are symmetrically arranged with the center of the rotation axis of the rotary seat.

Preferably, the driving assembly includes a sliding bin movably arranged in the crossbeam, the sliding bin is fixedly connected to the sliding seat, the sliding bin is connected to the driving member through an elastic member, a motor is arranged on the crossbeam, a reciprocating screw is coaxially connected to the output end of the motor, and a sliding sleeve which is sleeved on the reciprocating screw is arranged on the driving member.

Preferably, the driving assembly includes a linkage rod sliding through the sliding bin, one end of the linkage rod is fixedly connected to the driving member, and the other end is sleeved with a ring that can be spirally transmitted, the ring is arranged in the sliding bin and is coaxially connected to a first bevel gear through a one-way transmission assembly, a worm is rotatably arranged in the sliding seat, and a rotating shaft of the rotating seat is coaxially connected to a worm wheel, and the first bevel gear is linked to the worm.

Preferably, a sliding protrusion is provided on the inner wall of the collar, a spiral groove matching the sliding protrusion is provided on the linkage rod, and directional grooves parallel to the axial direction of the linkage rod are provided at both ends of the spiral groove.

Preferably, a liquid pump assembly is provided in the crossbeam, and a spray ring connected to the liquid pump assembly is provided on the lower side of the crossbeam in a liftable manner; when the go gauge or the stop gauge does not correspond to the detection position, it corresponds coaxially with the spray ring; a linkage assembly for linking the lifting and lowering of the spray ring and the movement of the linkage rod is provided in the crossbeam, and when the spray ring rises, the liquid pump assembly controls the spray ring to spray protective liquid.

Preferably, the liquid pump assembly includes a liquid cylinder fixedly arranged in a crossbeam, one end of the liquid cylinder is respectively connected to a liquid inlet pipe and a liquid delivery pipe through a one-way valve, the liquid inlet pipe is connected to an external liquid supply, the liquid delivery pipe is connected to a spray ring, and a piston is movably arranged in the liquid cylinder.

Preferably, the linkage assembly includes a push rod elastically and movably arranged in a cross beam and coaxial with the linkage rod, the push rod is connected to the piston through a push-pull rod, a linkage gear is rotatably arranged in the cross beam, a first rack meshing with the linkage gear is arranged on the push rod, and a second rack meshing with the linkage gear is fixedly arranged on the spray ring.

Preferably, the rotating seat is provided with a first signal unit and a second signal unit corresponding to the go gauge and the stop gauge respectively, and the two opposite sides of the beam are provided with a first detector and a second detector respectively. When the first detector detects the first signal unit, it is judged that the go gauge has passed, otherwise it has not passed. When the second detector detects the second signal unit, it is judged that the stop gauge has passed, otherwise it has not passed.

Preferably, a pressing assembly is provided on the lower side of the cross beam, and the pressing assembly is used to limit the steel pipe at the detection position.

In the above technical solution, the beneficial effects of the present invention are:

The automatic continuous detection device for the outer diameter of stainless steel pipes can obtain steel pipes from the material taking position and then send them to the detection position one by one by setting a lifting body, and then the slide can be driven to move back and forth through the driving component, thereby driving the go gauge or the stop gauge at the corresponding detection position to approach the detection end of the steel pipe to detect the outer diameter. At the same time, each time the slide is reset, the rotary seat can be linked to rotate to automatically switch the go gauge and the stop gauge to the corresponding detection position alternately, thereby realizing continuous and automatic go and stop detection of the outer diameter of the steel pipe end, thereby improving the practicability of the device.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

FIG1 is a schematic diagram of the overall structure provided by an embodiment of the present invention;

FIG2 is a schematic diagram of another overall structure of a viewing angle provided by an embodiment of the present invention;

FIG3 is a schematic diagram of the internal structure of a beam provided in an embodiment of the present invention;

FIG4 is a schematic diagram of a linkage rod structure provided in an embodiment of the present invention;

FIG5 is a schematic diagram of a front cross-sectional structure provided by an embodiment of the present invention;

FIG6 is a schematic diagram of an enlarged structure of point A in FIG5 provided by an embodiment of the present invention;

FIG. 7 is a schematic diagram of a side cross-sectional structure provided by an embodiment of the present invention.

Description of reference numerals:

1. Inspection table; 2. Lifting body; 3. Crossbeam; 4. Sliding seat; 5. Rotating seat; 6. Through gauge; 7. Stop gauge; 8. Sliding bin; 9. Elastic part; 10. Driving part; 11. Motor; 12. Reciprocating screw; 13. Sliding sleeve; 14. Linkage rod; 15. Ring; 16. First bevel gear; 17. Worm; 18. Worm wheel; 19. Sliding cam; 20. Spiral groove; 21. Directional groove; 22. Spray ring; 23. Liquid cylinder; 24. Liquid inlet pipe; 25. Liquid delivery pipe ; 26. Piston; 27. Push rod; 28. Push-pull rod; 29. Linkage gear; 30. First rack; 31. Second rack; 32. First signal unit; 33. Second signal unit; 34. First detector; 35. Second detector; 36. Receiving plate; 37. Transmission shaft; 38. Second bevel gear; 39. Third bevel gear; 40. Fourth bevel gear; 41. Guide rod; 42. Guide groove; 43. Elastic telescopic rod; 44. Pressure block; 45. Inkjet printer.

Detailed ways

In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

Please refer to Figures 1-7. An automatic continuous detection device for the outer diameter of a stainless steel pipe provided in an embodiment of the present invention includes a detection platform 1, and also includes: a lifting body 2, which is movably arranged on the detection platform 1, and is used to drive the steel pipe to rise and fall, and the upper and lower ends of the lifting stroke are respectively set as a detection position and a material taking position; a crossbeam 3, which is arranged above the lifting body 2, and a slide 4 is movably arranged on the lower side of the crossbeam 3, a rotary seat 5 is rotatably arranged on the slide 4, and a go gauge 6 and a stop gauge 7 are arranged on the rotary seat 5; a driving component, which is used to drive the slide 4 to move back and forth, and when the slide 4 completes a back and forth movement, the rotary seat 5 is linked to rotate to alternately correspond the go gauge 6 and the stop gauge 7 to the detection position.

Specifically, the testing platform 1 includes a feed end and a discharge end, and the upper end surfaces are arranged to be inclined in the same direction. The height of the discharge end of the testing platform 1 is higher than the height of the feed end, and the lifting body 2 is arranged at a position where the feed end and the discharge end of the testing platform 1 are connected in height; a groove is arranged at the upper end of the lifting body 2 to position the steel pipe, and both ends of the steel pipe are limited by the inner wall of the testing platform 1. When the lifting body 2 is lowered so that the upper end corresponds to the height of the feeding end of the detection platform 1, it is the material picking position. At this time, the steel pipe automatically rolls to the material picking position along the feeding end of the detection platform 1; when the lifting body 2 is raised so that the upper end exceeds the height of the discharging end of the detection platform 1, it is the detection position; a notch is provided on one side of the discharging end of the detection platform 1 near the lifting body 2, and a material receiving plate 36 is elastically hinged in the notch by a torsion spring, and one end of the material receiving plate 36 is close to the lifting body 2 and elastically tilted upward; an obstacle avoidance groove corresponding to the material receiving plate 36 is provided on the lifting body 2, and when the lifting body 2 drives the steel pipe to move from the material picking position to the detection position, the material receiving plate 36 can be pushed to rotate elastically to avoid it, and after the steel pipe arrives at the detection position, the material receiving plate 36 elastically rotates to embed into the obstacle avoidance groove of the lifting body 2, that is, the corresponding steel pipe below, and then, when the steel pipe is detected and the lifting body 2 is lowered from the detection position, it is received by the material receiving plate 36, and then rolled into the discharging end of the detection platform 1 along the inclination angle of the material receiving plate 36, thereby realizing continuous detection of the steel pipe. The crossbeam 3 is arranged horizontally and parallel to the axial direction of the steel pipe; the slide 4 moves along the extension direction of the crossbeam 3; the movement of the slide 4 driven by the driving assembly is non-rigid, and stops moving when obstructed; the rotation axis of the rotary seat 5 is arranged at an angle of 45° to the vertical direction, and the central axes of the through gauge 6 and the stop gauge 7 intersect vertically, and are symmetrically arranged with the center of the rotation axis of the rotary seat 5; when the through gauge 6 and the stop gauge 7 correspond to the detection position, they are coaxial with the steel pipe at the detection position, and then driven by the slide 4, they can be moved relative to the detection end of the steel pipe for detection; the alternating switching of the through gauge 6 and the stop gauge 7 is that one axially horizontally corresponds to the detection position, and the other is axially vertical and on the side away from the detection position. In actual use of this technical solution, when the lifting body 2 is in the material-retrieving position, the steel pipe automatically rolls to the top of the lifting body 2, and then the lifting body 2 drives the steel pipe to rise to the detection position, then the driving assembly drives the slide 4 to move close to the detection end of the steel pipe, so that the through gauge 6 or the stop gauge 7 corresponding to the detection position at this time can detect the steel pipe, and then the slide 4 moves back and forth to reset, and after the through gauge 6 or the stop gauge 7 leaves the steel pipe, the rotating seat 5 is linked to rotate to drive the through gauge 6 and the stop gauge 7 to change positions, at this time, the stop gauge 7 or the through gauge 6 corresponds to the detection position, and the slide 4 reciprocates once again, thereby automatically completing the through-stop detection of the steel pipe, and then the lifting body 2 descends back to the material-retrieving position, and the detected steel pipe automatically leaves the lifting body 2 under the action of the material receiving plate 36, and this cycle is repeated to realize the continuous and automatic through-stop detection of the outer diameter of the end of the steel pipe. In addition, this detection can be targeted at one end of a batch of steel pipes, and then the qualified steel pipes at one end of this batch are turned around and then the other end is detected.

Compared with the prior art, an automatic continuous detection device for the outer diameter of a stainless steel pipe proposed in an embodiment of the present invention can obtain steel pipes from a material taking position and then send them to the detection position one by one by setting a lifting body 2, and then the slide 4 can be driven to move back and forth through the driving component, thereby driving the go gauge 6 or the stop gauge 7 at the corresponding detection position to approach the detection end of the steel pipe for outer diameter detection. At the same time, each time the slide 4 is reset, the rotary seat 5 can be linked to rotate to automatically switch the go gauge 6 and the stop gauge 7 to alternately correspond to the detection position, thereby realizing continuous and automatic go and stop detection of the outer diameter of the steel pipe end, thereby improving the practicability of the device.

As a preferred technical solution of this embodiment, the driving component includes a sliding bin 8 movably arranged in the cross beam 3, the sliding bin 8 is fixedly connected to the slide seat 4, the sliding bin 8 is connected to the driving member 10 through an elastic member 9, a motor 11 is arranged on the cross beam 3, a reciprocating screw 12 is coaxially connected to the output end of the motor 11, and a sliding sleeve 13 sleeved on the reciprocating screw 12 is arranged on the driving member 10. Specifically, the part of the lower end of the sliding bin 8 connected to the slide seat 4 is arranged as a transition part, and a through groove matching the transition part is arranged on the bottom surface of the cross beam 3, and the through groove limits the moving range of the sliding bin 8; the elastic member 9 can be preferably a spring, and the direction of the elastic force is consistent with the movement of the sliding bin 8. The moving directions are consistent, and the two ends of the spring are fixedly connected to the sliding bin 8 and the driving member 10 respectively; another through groove matching the driving member 10 is provided at the upper end of the crossbeam 3, and the moving range of the driving member 10 is limited, and the moving range of the driving member 10 is larger than the moving range of the sliding bin 8; the motor 11 is controlled by the servo system, and when the reciprocating screw 12 rotates, the sleeve 13 is driven to move back and forth, and then the driving member 10 is driven to move back and forth, and the driving member 10 drives the sliding bin 8 to move through the elastic member 9. When the sliding bin 8 is not affected by external force, it moves synchronously with the driving member 10, and when the detection of the through gauge 6 or the stop gauge 7 is blocked, the elastic member 9 can be stretched.

As a preferred technical solution of this embodiment, the driving assembly includes a linkage rod 14 that slides through the sliding bin 8. One end of the linkage rod 14 is fixedly connected to the driving member 10, and the other end is provided with a sleeve 15 that can be spirally driven. The sleeve 15 is arranged in the sliding bin 8 and is coaxially connected to a first bevel gear 16 through a one-way transmission assembly. A worm 17 is rotatably arranged in the sliding seat 4, and a worm wheel 18 is coaxially connected to the rotating shaft of the rotating seat 5. The first bevel gear 16 is linked with the worm 17. Specifically, the axial direction of the linkage rod 14 is consistent with the moving direction of the sliding bin 8; the sleeve 15 A sliding protrusion 19 is provided on the inner wall, and a spiral groove 20 matching the sliding protrusion 19 is provided on the linkage rod 14. Both ends of the spiral groove 20 are provided with directional grooves 21 parallel to the axial direction of the linkage rod 14; under the setting of the elastic member 9, the relative distance between the sliding bin 8 and the driving member 10 is automatically maintained, so that the position of the ring 15 relative to the linkage rod 14 corresponds to the sliding protrusion 19 being at the end of the spiral groove 20 away from the driving member 10; when the sliding protrusion 19 slides relative to the directional groove 21, the rotation of the ring 15 is not triggered, that is, the ring 15 is limited not to rotate. The one-way transmission component can preferably be a ratchet pawl component or a one-way bearing, which allows the linkage rod 14 and the collar 15 to move relative to each other when the sliding bin 8 is close to the driving member 10 to trigger the collar 15 to rotate, which can be transmitted to the first bevel gear 16, and when the sliding bin 8 is away from the driving member 10, the linkage rod 14 and the collar 15 move relative to each other to trigger the collar 15 to rotate, which will not be transmitted to the first bevel gear 16; a transmission shaft 37 is rotatably arranged between the slide seat 4 and the sliding bin 8, and one end of the transmission shaft 37 is coaxially connected to a gear meshing with the first bevel gear 16 The second bevel gear 38 is coaxially connected to the third bevel gear 39 at the other end, and one end of the worm 17 is coaxially connected to the fourth bevel gear 40 meshing with the third bevel gear 39; under the transmission of the sliding cam 19 and the spiral groove 20, and under the setting of each gear transmission ratio, when the sliding cam 19 slides across the entire spiral groove 20, the rotation angle of the first bevel gear 16 is transmitted to the worm 17, and then transmitted to the rotating seat 5 through the worm wheel 18. The rotation angle is 180°; the transmission of the worm 17 and the worm wheel 18 makes the rotation of the rotating seat 5 driven, and self-locking when not driven.

In actual use of this technical solution, the slide 4 is first located at the end away from the steel pipe, the through gauge 6 corresponds to the steel pipe first, the position of the driving member 10 corresponds to the elastic member 9 to remain free of force, then the motor 11 is started to make the driving member 10 approach the steel pipe, and the driving member 10 drives the sliding bin 8 to move synchronously through the elastic member 9, the sliding bin 8 drives the slide 4 to move, and the slide 4 drives the through gauge 6 to approach the detection end of the steel pipe for detection. At this time, if the steel pipe can pass the through gauge 6, the elastic member 9 maintains its length, and if the steel pipe cannot pass When the sliding bin 8 moves back to the initial position and no longer moves, while the driving member 10 continues to move closer to the sliding bin 8, the elastic member 9 is compressed, and the linkage rod 14 moves relative to the sliding bin 8, so that the sliding convex 19 slides in the spiral groove 20, triggering the rotation of the collar 15. At this time, the sleeve The ring 15 can drive the first bevel gear 16 to rotate through the one-way transmission component, and then drive the worm 17 to rotate. The worm 17 then drives the rotating seat 5 to rotate through the worm wheel 18. When the sliding protrusion 19 slides through the entire spiral groove 20, the rotating seat 5 rotates 180°, and the stop gauge 7 switches to the original position of the through gauge 6, corresponding to the detection position; then, the driving member 10 changes direction and moves, and the elastic member 9 releases elastic potential energy to stretch and recover to a length without force, and at this time, the movement of the linkage rod 14 relative to the sliding bin 8 triggers the ring 15 to rotate , and the first bevel gear 16 is not driven to rotate by the one-way transmission component, then the rotating seat 5 maintains the angle state under the self-locking function of the worm wheel 18 and the worm 17, and at the same time, the stop gauge 7 is close to the steel pipe. If the steel pipe can pass through the stop gauge 7, the elastic member 9 maintains the length, and if the steel pipe cannot pass through the stop gauge 7, the elastic member 9 is stretched, and the rotation of the ring 15 is also not triggered; finally, the driving member 10 moves back again, and the through gauge 6 is switched to the corresponding detection position again as in the above process; such a cycle can automatically perform the through and stop detection of the outer diameter of the steel pipe.

In another embodiment of the present invention, a liquid pump assembly is provided in the cross beam 3, and a spray ring 22 connected to the liquid pump assembly is provided on the lower side of the cross beam 3 in a lifting and lowering manner. When the through gauge 6 or the stop gauge 7 does not correspond to the detection position, it corresponds coaxially to the spray ring 22. A linkage assembly for linking the lifting and lowering of the spray ring 22 and the movement of the linkage rod 14 is provided in the cross beam 3, and when the spray ring 22 rises, the liquid pump assembly controls the spray ring 22 to spray out the protective liquid. Specifically, when the slide seat 4 is at one end away from the steel pipe, if the through gauge 6 corresponds to the detection position, the stop gauge 7 corresponds coaxially to the spray ring 22; and if the stop gauge 7 corresponds to the detection position, the through gauge 6 corresponds coaxially to the spray ring 22; when the driving member 10 approaches the sliding bin 8, the linkage rod 14 moves relative to the sliding bin 8 to terminate the transmission of the sliding protrusion 19 and the spiral groove 20, and the sliding protrusion 19 continues to slide into the directional groove 21 close to the driving member 10. At this time, the rotation switching of the rotary seat 5 is completed and the rotation angle is maintained, and the linkage rod 14 continues The movable linkage spray ring 22 descends to embed into the inner side of the corresponding through gauge 6 or stop gauge 7, and the liquid pump assembly does not work at this time; thereafter, when the driving member 10 moves away from the sliding bin 8, the sliding protrusion 19 still slides in the directional groove 21 close to the driving member 10, the rotary seat 5 does not rotate, and the elastic member 9 releases elastic potential energy, and the slide seat 4 does not move. Therefore, the linkage rod 14 links the spray ring 22 to rise and the liquid pump assembly works to control the spray ring 22 to spray the protective liquid to evenly spray the protective liquid on the inner wall of the through gauge 6 or the stop gauge 7; after the spray ring 22 leaves the through gauge 6 or the stop gauge 7, the elastic member 9 recovers to a length without force, and the sliding protrusion 19 enters the spiral groove 20, but under the setting of the one-way transmission assembly, the rotary seat 5 still does not rotate, but starts to move with the slide seat 4, thereby realizing the maintenance of the through gauge 6 or the stop gauge 7 after each inspection, ensuring that during the inspection, the contact between the through gauge 6 or the stop gauge 7 and the steel pipe does not cause excessive friction, thereby extending the service life of the through gauge 6 and the stop gauge 7.

As the preferred technical scheme of the present embodiment, the liquid pump assembly includes a liquid cylinder 23 fixedly arranged in the cross beam 3, one end of the liquid cylinder 23 is respectively connected with a liquid inlet pipe 24 and a liquid delivery pipe 25 through a one-way valve, the liquid inlet pipe 24 is connected to the external liquid supply, the liquid delivery pipe 25 is connected to the spray ring 22, and a piston 26 is movably arranged in the liquid cylinder 23. Specifically, the liquid cylinder 23 is horizontally arranged, and one end for liquid inlet and outlet is arranged in the direction close to the sliding warehouse 8; the one-way valve is arranged so that the piston 26 can move in the liquid cylinder 23 to control the liquid inlet pipe 24 to independently feed liquid and the liquid delivery pipe 25 to independently deliver liquid; a connecting groove is arranged on the bottom surface of the cross beam 3, and the liquid delivery pipe 25 can movably pass through it; the liquid delivery pipe 25 is a hose, and the length setting meets the required lifting height of the spray ring 22 relative to the liquid cylinder 23.

As a preferred technical solution of this embodiment, the linkage assembly includes a push rod 27 elastically and movably arranged in the cross beam 3 and coaxial with the linkage rod 14, the push rod 27 is connected to the piston 26 through a push-pull rod 28, a linkage gear 29 is rotatably arranged in the cross beam 3, a first rack 30 meshing with the linkage gear 29 is arranged on the push rod 27, and a second rack 31 meshing with the linkage gear 29 is fixedly arranged on the spray ring 22. Specifically, a guide rod 41 is arranged in the cross beam 3 in its length direction, and a guide groove 42 matching the guide rod 41 is arranged at one end of the push rod 27 away from the linkage rod 14, and a spring is sleeved on the guide rod 41, and both ends of the spring respectively abut against the inner wall of the cross beam 3 and the end of the push rod 27, and the setting of the spring keeps the push rod 27 close to the linkage The push-pull rod 28 drives the piston 26 with the push-pull rod 27 to remain in the liquid cylinder 23 near the end of the liquid inlet and outlet; the azimuth setting of the linkage gear 29 makes it possible for the push-pull rod 28 to drive the first rack 30 to move in conjunction with the second rack 31 when the push-pull rod 27 is pushed by the linkage rod 14. At the same time, the push-pull rod 28 drives the piston 26 to move in the liquid cylinder 23 to enter the liquid through the liquid inlet pipe 24; when the linkage rod 14 is away from the push-pull rod 27, the push-pull rod 27 is elastically reset and moves, and the second rack 31 is linked to rise. At the same time, the push-pull rod 27 drives the piston 26 to move in the liquid cylinder 23 through the push-pull rod 28 to send liquid to the spray ring 22 through the liquid sending pipe 25, that is, the spray ring 22 sprays the protective liquid on the inner wall of the through gauge 6 or the stop gauge 7.

As a preferred technical solution of the above embodiment, a first signal unit 32 and a second signal unit 33 corresponding to the through gauge 6 and the stop gauge 7 are respectively provided on the rotating seat 5, and a first detector 34 and a second detector 35 are respectively provided on two opposite sides of the beam 3. When the first detector 34 detects the first signal unit 32, it is judged that the through gauge 6 has passed, otherwise it has not passed. When the second detector 35 detects the second signal unit 33, it is judged that the stop gauge 7 has passed, otherwise it has not passed. Specifically, the first signal unit 32 and the second signal unit 33 are arranged on the same side of the rotating seat 5, and then when the rotating seat 5 rotates to exchange the positions of the through gauge 6 and the stop gauge 7, the first signal unit 32 and the second signal unit 33 are respectively located on the opposite sides of the beam 3; the through gauge 6 corresponds to the detection position When the first signal unit 32 is set, the first signal unit 32 is on the same side as the first detector 34. At this time, the slide 4 drives the go gauge 6 to move so that the first signal unit 32 can correspond to or pass under the first detector 34, that is, the steel pipe can pass through the go gauge 6, and the servo system determines that the go gauge 6 has passed the inspection, otherwise it is unqualified; then, when the stop gauge 7 corresponds to the inspection position, the second signal unit 33 is on the same side as the second detector 35. At this time, the slide 4 drives the go gauge 6 to move so that the second signal unit 33 corresponds to or passes under the first detector 34, that is, the steel pipe can pass through the stop gauge 7, and the servo system determines that the stop gauge 7 has failed the inspection, otherwise it is qualified; when the servo system detects that both the go gauge 6 and the stop gauge 7 are qualified, that is, the through and stop inspection of the outer diameter of the steel pipe is qualified, otherwise they are both unqualified.

As a preferred technical solution of the above embodiment, a pressing assembly is provided on the lower side of the crossbeam 3, and the pressing assembly is used to limit the steel pipe at the detection position. Specifically, the pressing assembly includes a pressing block 44 connected to the bottom of the crossbeam 3 by an elastic telescopic rod 43, and a groove is provided at the lower end of the pressing block 44 in line with the lifting body 2. The lifting body 2 rises to the detection position and cooperates with the pressing block 44 to strengthen the positioning of the steel pipe and ensure smooth detection. In addition, a code sprayer 45 can be integrated on the pressing block 44, with the nozzle facing downward and passing through the pressing block 44. The code sprayer 45 is controlled by the servo system, and when the steel pipe fails the inspection, a failed mark can be sprayed on the corresponding steel pipe.

The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that, for those skilled in the art, the described embodiments can be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims (10)

1. An automatic continuous detection device for the outer diameter of a stainless steel pipe, comprising a detection table (1), characterized in that it also includes: A lifting body (2) is movably arranged on the detection platform (1) and is used to drive the steel pipe to rise and fall, and the upper and lower ends of the lifting stroke are respectively arranged as a detection position and a material taking position; A crossbeam (3) is arranged above the lifting body (2), and a slide seat (4) is movably arranged on the lower side of the crossbeam. A rotary seat (5) is rotatably arranged on the slide seat (4), and a through gauge (6) and a stop gauge (7) are arranged on the rotary seat (5); The driving assembly is used to drive the slide seat (4) to move back and forth, and when the slide seat (4) completes each back and forth movement, the linkage rotary seat (5) rotates to make the through gauge (6) and the stop gauge (7) alternately correspond to the detection position. 2. The automatic continuous detection device for the outer diameter of a stainless steel pipe according to claim 1 is characterized in that the angle between the rotation axis of the rotary seat (5) and the vertical direction is set at 45°, and the central axes of the go gauge (6) and the stop gauge (7) intersect vertically and are symmetrically arranged with the center of the rotation axis of the rotary seat (5). 3. The automatic continuous detection device for the outer diameter of a stainless steel pipe according to claim 1 is characterized in that the driving component includes a sliding bin (8) movably arranged in a crossbeam (3), the sliding bin (8) is fixedly connected to a slide seat (4), the sliding bin (8) is connected to a driving member (10) through an elastic member (9), a motor (11) is arranged on the crossbeam (3), a reciprocating screw (12) is coaxially connected to the output end of the motor (11), and a sliding sleeve (13) sleeved on the reciprocating screw (12) is arranged on the driving member (10). 4. The automatic continuous detection device for the outer diameter of a stainless steel pipe according to claim 3 is characterized in that the driving component includes a linkage rod (14) slidingly passing through the sliding bin (8), one end of the linkage rod (14) is fixedly connected to the driving member (10), and the other end is sleeved with a ring (15) that can be spirally driven, the ring (15) is arranged in the sliding bin (8) and is coaxially connected to a first bevel gear (16) through a one-way transmission component, a worm (17) is rotatably arranged in the sliding seat (4), and a worm wheel (18) is coaxially connected to the rotating shaft of the rotating seat (5), and the first bevel gear (16) is linked to the worm (17). 5. The automatic continuous detection device for the outer diameter of a stainless steel pipe according to claim 4 is characterized in that a sliding protrusion (19) is provided on the inner wall of the collar (15), a spiral groove (20) matching the sliding protrusion (19) is provided on the linkage rod (14), and directional grooves (21) parallel to the axial direction of the linkage rod (14) are provided at both ends of the spiral groove (20). 6. The automatic continuous detection device for the outer diameter of a stainless steel pipe according to claim 4 is characterized in that a liquid pump assembly is arranged in the crossbeam (3), and a spray ring (22) connected to the liquid pump assembly is arranged on the lower side of the crossbeam (3) in a liftable manner, and when the through gauge (6) or the stop gauge (7) does not correspond to the detection position, it corresponds coaxially with the spray ring (22), and a linkage assembly for linking the lifting and lowering of the spray ring (22) and the movement of the linkage rod (14) is arranged in the crossbeam (3), and when the spray ring (22) rises, the liquid pump assembly controls the spray ring (22) to spray out protective liquid. 7. The automatic continuous detection device for the outer diameter of a stainless steel pipe according to claim 6 is characterized in that the liquid pump assembly includes a liquid cylinder (23) fixedly arranged in the crossbeam (3), one end of the liquid cylinder (23) is respectively connected to a liquid inlet pipe (24) and a liquid delivery pipe (25) through a one-way valve, the liquid inlet pipe (24) is connected to the external liquid supply, the liquid delivery pipe (25) is connected to the spray ring (22), and a piston (26) is movably arranged in the liquid cylinder (23). 8. The automatic continuous detection device for the outer diameter of a stainless steel pipe according to claim 7 is characterized in that the linkage assembly includes a push rod (27) elastically and movably arranged in the cross beam (3) and coaxial with the linkage rod (14), the push rod (27) is connected to the piston (26) through a push-pull rod (28), a linkage gear (29) is rotatably arranged in the cross beam (3), a first rack (30) meshing with the linkage gear (29) is arranged on the push rod (27), and a second rack (31) meshing with the linkage gear (29) is fixedly arranged on the spray ring (22). 9. The automatic continuous detection device for the outer diameter of a stainless steel pipe according to claim 1 is characterized in that a first signal unit (32) and a second signal unit (33) corresponding to a go gauge (6) and a stop gauge (7) are respectively provided on the rotating seat (5), and a first detector (34) and a second detector (35) are respectively provided on two opposite sides of the crossbeam (3), and when the first detector (34) detects the first signal unit (32), it is judged that the go gauge (6) has passed, otherwise it has not passed, and when the second detector (35) detects the second signal unit (33), it is judged that the stop gauge (7) has passed, otherwise it has not passed. 10. The automatic continuous detection device for the outer diameter of a stainless steel pipe according to claim 1 is characterized in that a pressing component is provided on the lower side of the crossbeam (3), and the pressing component is used to limit the steel pipe at the detection position.