Sizing detection device for stainless steel pipe processing

Abstract

The invention discloses a sizing detection device for stainless steel tube processing, which comprises a base and a support column, the support column is fixedly connected to the left end of the upper surface of the base, the top of the support column is provided with a tube measuring mechanism, and the upper surface of the base is provided with a lifting mechanism along the left-right direction; the pipe measuring mechanism comprises a machine shell installed at the top end of the supporting column, a first motor is installed at the center position of the left side wall of the machine shell, a rotating disc located in an inner cavity of the machine shell is installed at the output end of the first motor, three sliding grooves are formed in the right side wall of the rotating disc in the circumferential direction, and clamping plates corresponding to the sliding grooves in a one-to-one mode are inserted into the side wall of the machine shell in the circumferential direction. According to the invention, stable centering clamping is formed on the pipe, inner and outer diameter measurement errors caused by inaccurate centering or measurement direction deviation in traditional measurement are effectively avoided, the precision of measuring the inner and outer diameters of the pipe is remarkably improved, inner diameter data can be accurately acquired, whether the roundness of the inner wall of the pipe reaches the standard or not can be judged, and synchronous detection of the inner diameter and the roundness is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe detection, in particular to a sizing detection device for stainless steel pipe processing. Background Art

[0002] Stainless steel pipe, a hollow, long steel strip, is widely used in industry and engineering. It's not only used extensively for conveying fluids like oil, natural gas, water, gas, and steam, but is also widely used in the manufacture of mechanical parts and engineering structures due to its lighter weight while maintaining the same bending and torsional strength.

[0003] The accuracy of the inner and outer diameters of pipes is a key indicator affecting their performance, and is directly related to fluid delivery efficiency and installation convenience. Therefore, strict inner and outer diameter testing is required after the pipe is formed. However, traditional mechanical and electronic measurement methods have obvious limitations. On the one hand, these methods are mostly simple inner and outer diameter measurements. If the pipe cannot be accurately centered during the measurement process, or the measurement direction fails to remain perpendicular to the pipe surface, it is very easy to cause deviations in the measurement results. On the other hand, static measurement can only obtain the inner diameter data of a fixed point on the pipe, and cannot reflect the overall inner diameter roundness of the pipe. Substandard roundness will directly hinder fluid delivery efficiency. In addition, after the pipe is cut, its end face often produces burrs due to the cutting process. In traditional processes, deburring and dimensional measurement are independent of each other, resulting in cumbersome pipe processing procedures and affecting processing efficiency. Summary of the Invention

[0004] The object of the present invention is to provide a sizing detection device for stainless steel pipe processing, so as to at least solve the problem of poor static measurement accuracy and inability to detect the roundness of the pipe in the prior art.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a sizing detection device for stainless steel pipe processing, comprising a base and a support column, wherein the support column is fixedly connected to the left end of the upper surface of the base, a pipe measuring mechanism is installed on the top of the support column, and a lifting mechanism is installed on the upper surface of the base in the left and right directions; The pipe measuring mechanism includes a casing installed at the top of the support column, a first motor is installed at the center of the left side wall of the casing, a turntable in the inner cavity of the casing is installed at the output end of the first motor, three slide grooves are opened along the circumference of the right side wall of the turntable, and a splint corresponding to the slide groove is inserted into the side wall of the casing along the circumference, and the outer diameter of the pipe is clamped by moving the splint inward, and the inner side of the splint is inserted into the inner cavity of the slide groove, and an outer diameter distance meter corresponding to the splint is installed along the circumference of the right side wall of the casing, and the outer diameter distance meter measures the distance from the splint to the splint when the splint clamps the pipe. The average value of the three outer diameter distance meters is the outer diameter of the pipe, and an inner diameter distance measuring assembly is installed horizontally at the center of the right side wall of the casing, and a deburring assembly and a driving assembly are installed on the outer side and end of the splint respectively; While dynamically measuring the inner diameter, the roundness of the pipe can also be measured, and burrs remaining from pipe cutting can be removed, reducing the number of pipe processing steps.

[0006] Preferably, the three sliding grooves are inclined in the same direction and distributed on the outer wall of the turntable at intervals of 120 degrees.

[0007] Preferably, the inner diameter distance measuring assembly includes a cylinder installed horizontally at the center position of the right side wall of the casing, a mounting plate is installed at the output end of the cylinder, and two front-to-back symmetrical inner diameter distance measuring instruments are installed on the right side wall of the mounting plate. The cylinder pushes the inner diameter distance measuring instrument into the inner cavity of the pipe to measure the inner diameter of the pipe.

[0008] Preferably, the deburring assembly includes a box body embedded in the outside of the splint, a limiting rod is vertically installed at the bottom of the inner cavity of the box body, and a lever and a spring are respectively sleeved on the upper and lower ends of the outer wall of the limiting rod. When the limiting rod is limited, the spring force pushes the lever up, and the lever is U-shaped. A grinding unit is horizontally installed on the top of the left side wall of the box body.

[0009] Preferably, the polishing unit includes a sliding rod installed horizontally on the top of the left side wall of the box body, and two polishing plates symmetrically installed in the upper and lower parts are installed on the right end of the sliding rod through a pin shaft. When the polishing plates contact the end face of the pipe, burrs are removed by friction. The outer wall of the sliding rod is sleeved with a sliding seat that can slide left and right. One end of a leaf spring is installed on the upper and lower ends of the right side wall of the sliding seat through a pin shaft, and the other end of the leaf spring is connected to the outer side of the polishing plate through a pin shaft. When the sliding seat moves left and right, the leaf spring can pull the polishing plate to swing outward or inward. A positioning plate is installed at the bottom of the sliding seat, and a guide groove is opened on the outer wall of the positioning plate, and the shift rod is inserted into the inner cavity of the guide groove.

[0010] Preferably, the leaf spring is arc-shaped.

[0011] Preferably, the guide grooves are obliquely distributed on the outer wall of the positioning plate.

[0012] Preferably, the driving assembly includes a base installed horizontally at the end of the splint, a second motor is installed at the right end of the base, one end of the rotating shaft is installed at the output end of the second motor, the other end of the rotating shaft is inserted into the inner wall of the base, and rollers are installed on the outer wall of the rotating shaft at equal distances from left to right. When the second motor drives the roller to rotate, the roller drives the pipe to rotate.

[0013] The present invention proposes a sizing detection device for stainless steel pipe processing, which has the following beneficial effects: 1. The three inclined chutes on the turntable, which are distributed at 120-degree intervals, rotate in the same direction and can simultaneously squeeze the corresponding clamps inward, causing the clamps to move inward synchronously, thereby forming a stable centering clamp for the pipe and ensuring that the pipe axis is accurately aligned with the center of the measuring mechanism. This effectively avoids the inner and outer diameter measurement errors caused by inaccurate centering or measurement direction deviation in traditional measurements, and significantly improves the accuracy of pipe inner and outer diameter measurement.

[0014] 2. Integrated dynamic measurement and deburring functions optimize the processing process and ensure pipe performance. By moving the lever to squeeze the inclined guide groove on the positioning plate, the slide can be driven to the right. The slide and the arc-shaped leaf spring work together to swing the polishing plate inward and make close contact with the pipe end face. At the same time, the drive assembly drives the pipe to rotate, and the inner diameter ranging assembly cooperates to dynamically measure the pipe cavity. Not only can the inner diameter data be accurately obtained, but the roundness of the inner wall of the pipe can also be judged by the fluctuation of the dynamic data, realizing the simultaneous detection of inner diameter and roundness.

[0015] 3. In addition, this process integrates deburring operations with inner diameter measurement, reducing the number of independent links in pipe processing and improving processing efficiency. It can also effectively remove burrs on the end faces of pipes, preventing burrs from damaging subsequently installed seals or hindering fluid delivery, thus ensuring the performance of the pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the present invention; Figure 2 This is the diagram of the pipe measuring mechanism; Figure 3 This is a schematic diagram of the structure of the inner diameter ranging component; Figure 4 It is a schematic diagram of the deburring component structure; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a cross-sectional view of the deburring component; Figure 7 A schematic diagram of the drive component structure.

[0017] In the figure: 1. base; 2. support column; 3. pipe measuring mechanism; 4. lifting mechanism; 31. casing; 32. first motor; 33. turntable; 34. slide; 35. clamping plate; 36. outer diameter distance meter; 37. inner diameter distance meter assembly; 38. deburring assembly; 39. driving assembly; 371. cylinder; 372. mounting plate; 373. inner diameter distance meter; 381. box body; 382. limit rod; 383. lever; 384. spring; 385. grinding unit; 3851. slide rod; 3852. polishing plate; 3853. slide seat; 3854. leaf spring; 3855. positioning plate; 3856. guide groove; 391. base; 392. second motor; 393. rotating shaft; 394. roller; 41. bracket; 42. hydraulic cylinder; 43. support plate. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 7 The present invention provides a technical solution: a sizing detection device for stainless steel pipe processing, comprising a base 1 and a support column 2, wherein the support column 2 is fixedly connected to the left end of the upper surface of the base 1, a pipe measuring mechanism 3 is installed on the top of the support column 2, and a lifting mechanism 4 is installed on the upper surface of the base 1 along the left and right directions; The pipe measuring mechanism 3 includes a casing 31 installed at the top of the support column 2, a first motor 32 is installed at the center of the left side wall of the casing 31, and a turntable 33 in the inner cavity of the casing 31 is installed at the output end of the first motor 32. Three slide grooves 34 are opened along the circumference of the right side wall of the turntable 33. The three slide grooves 34 are inclined in the same direction and distributed on the outer wall of the turntable 33 at intervals of 120 degrees. When the turntable 33 drives the slide groove 34 to rotate clockwise or counterclockwise, the inclined surface of the slide groove 34 squeezes the splint 35 inward or outward, so that the splint 35 moves inward or outward synchronously, thereby centering and clamping the pipe. The side wall of the casing 31 is circumferentially plugged with splints 35 corresponding to the slide grooves 34. The outer diameter of the pipe is clamped by moving the splint 35 inward, and the inner side of the splint 35 is aligned with the inner side of the slide groove 34. The outer diameter of the pipe is obtained by rotating the rotating disk 35 along the center line of the first and second axes. The outer diameter of the pipe is obtained by rotating the rotating disk 35 along the center line of the first axis. The outer diameter of the pipe is obtained by rotating the rotating disk 35 along the center line of the first axis. The outer diameter of the pipe is obtained by rotating the rotating disk 35 along the center line of the first axis. The outer diameter of the pipe is obtained by rotating the rotating disk 35 along the center line of the first axis. The deburring component 38 and the driving component 39 are respectively installed on the outer side and the end of the pipe. The arithmetic average of the measurement results of the three outer diameter distance meters 36 is the outer diameter of the pipe. By averaging multiple sets of data, the error of a single measuring point can be effectively reduced, and the accuracy of outer diameter measurement can be improved. If the pipe needs to be loosened, the first motor 32 drives the turntable 33 to rotate counterclockwise, and the squeezing force of the inclined inner wall of the slide 34 on the clamping plate 35 is released.

[0020] More specifically, when clamping a pipe is required, the first motor 32 is activated, driving the turntable 33 to rotate clockwise. Because the three chute slots 34 are tilted in the same direction and slide in engagement with the inner ends of the clamping plates 35, the inclined inner walls of the chute slots 34 exert an inward squeezing force on the clamping plates 35 as the turntable 33 rotates. This squeezing force causes the three clamping plates 35 to move synchronously inward along the through-holes of the housing 31 until their outer ends tightly contact the outer wall of the pipe, achieving centered clamping of the pipe.

[0021] More specifically, since the three clamps 35 are evenly distributed at 120 degrees and move inward synchronously, the axis of the pipe can be accurately aligned with the central axis of the measuring mechanism, avoiding measurement errors caused by clamping offset.

[0022] More specifically, when the splint 35 clamps the pipe, the three outer diameter distance gauges 36 respectively measure the distance from themselves to the outer side wall of the corresponding splint 35; since the thickness of the splint 35 is a known fixed value, the outer diameter data of the pipe can be indirectly obtained by calculating the distance between the reference position of the outer diameter distance gauge 36 and the outer side wall of the splint 35.

[0023] More specifically, to improve measurement accuracy, the arithmetic mean of the measurement results of the three outer diameter rangefinders 36 is taken as the final outer diameter size of the pipe; by averaging multiple sets of data, the random error of a single measurement point can be effectively reduced, and the accuracy of outer diameter measurement can be significantly improved.

[0024] More specifically, when the measurement is completed and the pipe needs to be loosened, the first motor 32 is controlled to run in reverse, driving the turntable 33 to rotate counterclockwise; at this time, the inclined inner wall of the slide 34 gradually releases the inward squeezing force of the clamping plate 35, and the clamping plate 35 moves outward under the action of the reaction force of the pipe or its own reset structure (such as a spring, not shown in the figure), breaks away from the contact with the pipe, and completes the loosening action.

[0025] As a preferred solution, further, the inner diameter distance measuring assembly 37 includes a cylinder 371 installed horizontally at the center position of the right side wall of the casing 31, and a mounting plate 372 is installed at the output end of the cylinder 371. Two front-to-back symmetrical inner diameter distance meters 373 are installed on the right side wall of the mounting plate 372. The cylinder 371 pushes the inner diameter distance meter 373 into the inner cavity of the pipe to allow the inner diameter distance meter 373 to measure the inner diameter of the pipe; according to the inner and outer diameter data of the pipe, the difference between the outer diameter and the inner diameter is divided by two to obtain the pipe wall thickness data.

[0026] As a preferred solution, further, the deburring assembly 38 includes a box body 381 embedded in the outside of the splint 35, and a limiting rod 382 is vertically installed at the bottom of the inner cavity of the box body 381. The upper and lower ends of the outer wall of the limiting rod 382 are respectively connected with a lever 383 and a spring 384. The cross-section of the limiting rod 382 is rectangular, which improves the movement stability of the lever 383. Under the limiting condition of the limiting rod 382, ​​the elastic force of the spring 384 pushes the lever 383 to rise. The lever 383 is U-shaped, so that one end of the lever 383 is used to be triggered by the pipe, and the other end is used to trigger the deburring assembly 38. A grinding unit 385 is horizontally installed on the top of the left side wall of the box body 381.

[0027] As a preferred solution, further, the polishing unit 385 includes a slide bar 3851 installed horizontally on the top of the left side wall of the box body 381, and two polishing plates 3852 symmetrically installed in the upper and lower parts of the right side of the slide bar 3851 are installed through a pin. When the polishing plates 3852 come into contact with the end face of the pipe, burrs are removed by friction. The outer wall of the slide bar 3853 is sleeved with a slide seat 3853 that can slide left and right. The cross section of the slide bar 3851 is rectangular, which improves the stability of the slide seat 3853 when it moves. One end of the leaf spring 3854 is installed on the upper and lower ends of the right side wall of the slide seat 3853 through a pin, and the other end of the leaf spring 3854 is connected to the outer side of the polishing plate 3852 through a pin. When the slide seat 3853 moves left and right, the leaf spring 3854 can pull the polishing plate 3852 to swing outward or inward. The leaf spring 3854 is in the shape of an arc. When the arc of the leaf spring 3854 is squeezed, it can bend, allowing the leaf spring 3854 to move toward the polishing plate 38 52 applies elastic force, the purpose is to keep the polishing plate 3852 and the end face of the pipe in contact at all times, a positioning plate 3855 is installed at the bottom of the slide 3853, a guide groove 3856 is opened on the outer wall of the positioning plate 3855, and the lever 383 is inserted into the inner cavity of the guide groove 3856, and the guide groove 3856 is obliquely distributed on the outer wall of the positioning plate 3855. When the lever 383 moves in and out, the lever 383 can squeeze the guide groove 3856 to the right or left, thereby achieving The polishing plate 3852 now swings inward or outward; when the pipe is loosened, the lever 383 is reset inward along the limit rod 382 under the elastic force of the spring 384. At this time, the thrust of the lever 383 on the guide groove 3856 is released, and the slide 3853 moves to the left along the slide rod 3851 under the restoring force of the leaf spring 3854. The leaf spring 3854 drives the polishing plate 3852 to swing outward and separate from the end face of the pipe, completing the reset of the deburring operation.

[0028] As a preferred solution, further, the driving assembly 39 includes a base 391 installed horizontally at the end of the splint 35, a second motor 392 is installed at the right end of the base 391, one end of the rotating shaft 393 is installed at the output end of the second motor 392, the other end of the rotating shaft 393 is inserted into the inner wall of the base 391, and rollers 394 are installed on the outer wall of the rotating shaft 393 at equal distances from left to right. When the second motor 392 drives the roller 394 to rotate, the roller 394 drives the pipe to rotate.

[0029] When the clamping plate 35 moves inward to clamp the pipe, the outer wall of the pipe contacts the end of the lever 383 extending outside the box body 381, pressing the lever 383 inward. Under the guidance of the limit rod 382, ​​the lever 383 moves downward along the limit rod 382, ​​compressing the spring 384 to store elastic potential energy.

[0030] When the lever 383 moves downward, its end inserted in the guide groove 3856 will squeeze the inclined inner wall of the guide groove 3856; since the guide groove 3856 is inclined, the squeezing force will be converted into a force that pushes the positioning plate 3855 to move to the right, thereby driving the slide 3853 to slide to the right along the slide rod 3851.

[0031] When the slide 3853 moves to the right, the two polishing plates 3852 will be pulled to swing inward through the arc-shaped leaf spring 3854 until the inner wall of the polishing plate 3852 is in close contact with the end face of the pipe; at this time, the arc-shaped leaf spring 3854 generates elastic restoring force due to bending, continuously applying pressure to the polishing plate 3852, ensuring that the polishing plate 3852 is in stable contact with the end face of the pipe.

[0032] When the driving assembly 39 drives the pipe to rotate, the polishing plate 3852 and the end surface of the pipe rub against each other, and the burrs on the end surface of the pipe are removed by the wear-resistant polishing layer on the inner side of the polishing plate 3852 .

[0033] When the pipe measurement is completed and the clamping plate 35 moves outward to release the pipe, the squeezing force of the pipe on the lever 383 is released; at this time, the spring 384 releases its elastic potential energy, pushing the lever 383 to move upward along the limit rod 382 to reset.

[0034] When the lever 383 moves upward, its end slides along the guide groove 3856, driving the positioning plate 3855 and the slide 3853 to move to the left and reset; the traction force of the leaf spring 3854 is released, and the polishing plate 3852 swings outward under the action of its own gravity and the restoring force of the leaf spring 3854, breaking away from contact with the end face of the pipe, completing the reset of the deburring operation.

[0035] Through the above structural design, the deburring assembly 38 can be linked with the clamping action of the clamping plate 35 to achieve the simultaneous execution of "clamping, measuring, and deburring" without the need for additional independent processes, effectively simplifying the pipe processing process and improving production efficiency.

[0036] As a preferred solution, further, the lifting mechanism 4 includes a bracket 41 installed on the upper surface of the base 1, and hydraulic cylinders 42 are vertically installed on the left and right sides of the lower surface of the bracket 41. A support plate 43 is installed at the output end of the hydraulic cylinder 42. The support plate 43 is raised and lowered by the hydraulic cylinder 42, and the placement height is adjusted according to the outer diameter of the pipe, so that the pipe measuring mechanism 3 can center and clamp the pipe.

[0037] The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process. The specific operations are as follows.

[0038] Step 1: Place the pipe to be tested on the lifting mechanism 4. Adjust the pipe to a suitable height based on its outer diameter. The first motor 32 drives the turntable 33 to rotate clockwise. The chute 34 presses the clamping plate 35 inward, causing the clamping plate 35 to move inward. The roller 394 clamps the pipe surface and positions it. Step 2: The outer diameter distance meter 36 measures the distance from the clamping plate 35 to obtain the outer diameter of the pipe. The second motor 392 drives the roller 394 to rotate, causing the pipe to rotate. The cylinder 371 pushes the inner diameter distance meter 373 to move toward the inner cavity of the pipe. The inner diameter distance meter 373 measures the dynamic inner diameter of the pipe and the roundness of the inner diameter of the pipe. The average value is the inner diameter of the pipe. Step three, during the process of the clamping plate 35 moving inward to clamp the pipe, the lever 383 contacts the pipe first, and the lever 383 moves outward relative to the box body 381. The lever 383 squeezes the inclined surface of the guide groove 3856, allowing the positioning plate 3855 to drive the slide 3853 to move to the right along the slide rod 3851. At the same time, the leaf spring 3854 pulls the polishing plate 3852 to swing inward, and the polishing plate 3852 contacts the end face of the pipe under the elastic force of the leaf spring 3854. As the pipe rotates, the polishing plate 3852 rubs against the pipe, and the deburring of the pipe is completed while measuring the inner diameter.

[0039] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sizing detection device for stainless steel pipe processing, comprising a base (1) and a support column (2), wherein the support column (2) is fixedly connected to the left end of the upper surface of the base (1), characterized in that: A pipe measuring mechanism (3) is installed on the top of the support column (2), and a lifting mechanism (4) is installed on the upper surface of the base (1) in the left and right directions; The pipe measuring mechanism (3) includes a casing (31) mounted on the top of the support column (2), a first motor (32) is mounted at the center of the left side wall of the casing (31), a turntable (33) is mounted at the output end of the first motor (32) and is located in the inner cavity of the casing (31), three chute (34) are opened along the circumferential direction on the right side wall of the turntable (33), and a clamp (35) corresponding to the chute (34) is inserted into the side wall of the casing (31) along the circumferential direction, and the outer diameter of the pipe is clamped by moving the clamp (35) inward, and the clamping The inner side of the plate (35) is plugged into the inner cavity of the slide groove (34), and the right side wall of the housing (31) is circumferentially installed with outer diameter distance meters (36) corresponding to the clamping plates (35). The outer diameter distance meters (36) measure the distance from the clamping plates (35) to the clamping plates (35) when the clamping plates (35) clamp the pipe. The average value of the three outer diameter distance meters (36) is the outer diameter of the pipe. An inner diameter distance measuring assembly (37) is horizontally installed at the center position of the right side wall of the housing (31), and a deburring assembly (38) and a driving assembly (39) are respectively installed on the outer side and the end of the clamping plates (35).

2. A sizing detection device for stainless steel pipe processing according to claim 1, characterized in that: The three chutes (34) are inclined in the same direction and distributed on the outer wall of the turntable (33) at intervals of 120 degrees.

3. A sizing detection device for stainless steel pipe processing according to claim 2, characterized in that: The inner diameter distance measuring assembly (37) comprises a cylinder (371) installed transversely at the center of the right side wall of the housing (31); a mounting plate (372) is installed at the output end of the cylinder (371); two inner diameter distance measuring instruments (373) are installed on the right side wall of the mounting plate (372) in a front-to-back symmetrical manner; the cylinder (371) pushes the inner diameter distance measuring instruments (373) into the inner cavity of the pipe to measure the inner diameter of the pipe.

4. A sizing detection device for stainless steel pipe processing according to claim 3, characterized in that: The deburring assembly (38) includes a box body (381) embedded in the outside of the splint (35), a limiting rod (382) is vertically installed at the bottom of the inner cavity of the box body (381), and a shift rod (383) and a spring (384) are respectively sleeved on the upper and lower ends of the outer wall of the limiting rod (382). When the limiting rod (382) is limited, the spring (384) pushes the shift rod (383) to rise, and the shift rod (383) is U-shaped. A grinding unit (385) is horizontally installed on the top of the left side wall of the box body (381).

5. The sizing detection device for stainless steel pipe processing according to claim 4, characterized in that: The polishing unit (385) includes a slide bar (3851) installed horizontally on the top of the left side wall of the box body (381), and two polishing plates (3852) symmetrical in upper and lower directions are installed on the right end of the slide bar (3851) through a pin. When the polishing plates (3852) come into contact with the end face of the pipe, burrs are removed by friction. The outer wall of the slide bar (3853) is sleeved with a slide seat (3853) that can slide left and right. The upper and lower ends of the right side wall of the slide seat (3853) are installed through a pin. There is a leaf spring (3854) at one end, and the other end of the leaf spring (3854) is connected to the outer side of the polishing plate (3852) through a pin shaft. When the slide (3853) moves left and right, the leaf spring (3854) can pull the polishing plate (3852) to swing outward or inward. A positioning plate (3855) is installed at the bottom of the slide (3853). The outer wall of the positioning plate (3855) is provided with a guide groove (3856), and the shift rod (383) is inserted into the inner cavity of the guide groove (3856).

6. A sizing detection device for stainless steel pipe processing according to claim 5, characterized in that: The leaf spring (3854) is arc-shaped.

7. A sizing detection device for stainless steel pipe processing according to claim 6, characterized in that: The guide grooves (3856) are obliquely distributed on the outer wall of the positioning plate (3855).

8. The sizing detection device for stainless steel pipe processing according to claim 7, characterized in that: The driving assembly (39) includes a base (391) installed transversely at the end of the clamping plate (35), a second motor (392) is installed at the right end of the base (391), one end of a rotating shaft (393) is installed at the output end of the second motor (392), and the other end of the rotating shaft (393) is plugged into the inner wall of the base (391), and rollers (394) are installed on the outer wall of the rotating shaft (393) at equal distances from left to right. When the second motor (392) drives the roller (394) to rotate, the roller (394) drives the pipe to rotate.

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