An automatic detection device for ultra-high temperature cylinders and its usage method

Abstract

This invention relates to an automatic inspection device and method for ultra-high temperature cylinders, belonging to the field of specialized inspection technology for ultra-high temperature cylinders. The invention includes a work platform, a wall thickness detection device, a bottom thickness detection device, and a length detection device. The ultra-high temperature cylinder is fixed by the sequential movement of three sets of hydraulic rods and a bottom thickness hydraulic rod, and the cylinder's length, bottom thickness, and wall thickness forming parameters are determined by a laser detector and an electromagnetic ultrasonic thickness gauge. The device is connected to an existing stamping production line via a transmission device, achieving automatic inspection of drawn cylinders and 100% automated, high-precision inspection of stamped cylinders.

Description

Technical Field

[0001] This invention belongs to the field of ultra-high temperature cylinder testing technology, specifically relating to an automatic testing device for ultra-high temperature cylinders and its usage method. Background Technology

[0002] After the cylinder is punched or roughly machined, its length, bottom thickness, and wall thickness need to be measured to check if they conform to the product drawings and prevent dimensional deviations from affecting the next processing step. Current measurement methods mostly involve personnel using handheld measuring tools to inspect the dimensions of the formed cylinder. However, the temperature of the cylinder after drawing is close to 1000 degrees Celsius, causing the measuring tools to deform and fail during prolonged testing, making it impossible to accurately and effectively measure the dimensions of the formed cylinder. Furthermore, with the increase in production line efficiency, manual inspection cannot achieve 100% inspection rate, and there are also safety hazards for operators during ultra-high temperature cylinder inspection.

[0003] Therefore, a measuring device capable of automatically and digitally detecting parameters after cylinder forming is designed to ensure measurement accuracy after cylinder processing, thereby preventing products with out-of-tolerance dimensions from proceeding to the next process, and thus improving cylinder processing efficiency and quality. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by the present invention is how to provide an automatic detection device and method for ultra-high temperature cylinders, so as to solve the problem that the existing technology cannot accurately and effectively detect the size of the formed cylinder.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, the present invention proposes an automatic detection device for ultra-high temperature cylinders, comprising: a working platform 1, a cylinder sleeve 2, a cylinder water-cooled sleeve 3, a wall thickness hydraulic rod 4, a bottom thickness hydraulic rod 5, an electromagnetic ultrasonic thickness gauge 6, a thickness gauge guide rail 7, a laser detector 8, and a laser detector guide rail 9.

[0008] The working platform 1 is located at the bottom, and a cylindrical sleeve 2 is provided on the working platform 1. A sliding groove is provided on the side wall of the cylindrical sleeve 2 along the axial direction, and multiple through holes are evenly distributed on the side wall of the cylindrical sleeve 2 along the circumferential direction. A cylindrical water-cooled sleeve 3 is provided inside the cylindrical sleeve 2. The sliding groove and through holes are provided at the same positions on the side wall of the cylindrical sleeve 2 and the side wall of the cylindrical water-cooled sleeve 3.

[0009] Each of the cylindrical sleeves 2 has an externally provided thick-walled hydraulic rod 4 at the through hole on the side wall;

[0010] The upper end of the bottom-thickness hydraulic rod 5 is provided with a U-shaped probe, one end of which is placed in the water-cooled sleeve 3 of the cylinder.

[0011] The working platform 1 is vertically provided with a laser detector guide rail 9, and a laser detector 8 is sleeved on the laser detector guide rail 9. The probe of the laser detector 8 is placed outside the cylindrical sleeve 2.

[0012] The working platform 1 is also vertically provided with a thickness gauge guide rail 7, and an electromagnetic ultrasonic thickness gauge 6 is sleeved on the thickness gauge guide rail 7. The probe of the electromagnetic ultrasonic thickness gauge 6 is placed in the sliding groove of the cylinder sleeve 2.

[0013] The ultra-high temperature forming cylinder is placed in the cylinder water-cooling sleeve 3. The bottom thickness of the forming cylinder is detected by the bottom thickness hydraulic rod 5, the length of the forming cylinder is detected by the laser detector 8, and the wall thickness is detected at different positions of the forming cylinder by the electromagnetic ultrasonic thickness gauge 6. The detection results are output to an external industrial control computer. The industrial control computer compares the detected wall thickness, length and bottom thickness parameters with the dimensional requirements of the formed cylinder in the process forming specification, and selects the cylinder that meets the forming specification.

[0014] The upper surface of the working platform 1 and the bottom of the cylindrical sleeve 2 and the cylindrical water-cooled sleeve 3 are provided with a circular hole of the same diameter and coaxiality. The circular hole is provided with a material ejection rod 10, which is used to eject the formed cylindrical body after the inspection is completed.

[0015] A method for using an automatic detection device for ultra-high temperature cylinders includes the following steps:

[0016] Step 1: Place the drawn ultra-high temperature cylinder in the cylinder water-cooling sleeve 3. The industrial control computer controls the three sets of wall thickness hydraulic rods 4 to move towards the cylinder axis until they contact the cylinder surface. Record the horizontal movement distance of the wall thickness hydraulic rods 4 and calculate the outer diameter φ of the formed cylinder.

[0017] Step 2: The industrial control computer controls the bottom thickness hydraulic rod 5 to move along the axial direction until the top ceramic head contacts the bottom of the cylinder. The bottom thickness hydraulic rod 5 then stops moving, and the industrial control computer records the distance x that the bottom thickness hydraulic rod has moved. s Measure the bottom thickness T of the cylinder;

[0018] Step 3: When the bottom thickness hydraulic rod 5 is stable, the laser detector 8 moves vertically downward along the guide rail and outputs a laser signal to measure the length L of the cylinder.

[0019] Step 4: After the laser detector 8 completes the detection of the length parameters of the cylinder after stretching, the industrial control computer controls the electromagnetic ultrasonic thickness gauge 6 to move to the relative measurement position in the water-cooled sleeve 3 of the cylinder to detect the wall thickness of the cylinder.

[0020] Step 5: After the cylinder length, bottom thickness and wall thickness parameters are detected, the industrial control computer compares them with the cylinder product forming specifications formulated in the process flow to determine whether the bottom thickness, length, wall thickness and other parameters of the cylinder after drawing and forming meet the forming size requirements.

[0021] Specifically, step 1 includes:

[0022] Step 11: When the cylinder drawing is finished, the industrial control computer receives the hydraulic data after the drawing is completed, controls the transmission robot to pick up the drawn ultra-high temperature cylinder, and moves it towards the detection device;

[0023] Step 12: When the transfer robot grips the stretched ultra-high temperature cylinder and moves it to a position above the central axis of the sleeve, with the bottom edge of the ultra-high temperature cylinder being η away from the top edge of the sleeve, the hydraulic device of the mechanical gripper is released, and the stretched ultra-high temperature cylinder is placed in the cylinder water-cooled sleeve 3.

[0024] Step 13: The industrial control computer controls the three sets of wall thickness hydraulic rods 4 to move towards the cylinder axis until they contact the cylinder surface. The wall thickness hydraulic rods 4 immediately stop moving and the horizontal movement distances x4, x5, and x6 in the hydraulic rod space are recorded. Compare the distances x1, x2, and x3 of the wall thickness hydraulic rods from the axis before movement to calculate the outer diameter φ of the formed cylinder.

[0025] D1 = x1 - x4

[0026] D2 = x2 - x5

[0027] D3 = x3 - x6

[0028]

[0029] In the above formula, D1, D2, and D3 are the outer diameters of the cylinder after stretching, as measured by the three sets of hydraulic rods.

[0030] Specifically, step 2 includes:

[0031] Step 21: After the industrial control computer completes the acquisition of the outer diameter parameters of the cylinder, it records the initial height H of the top ceramic head of the bottom thickness hydraulic rod 5 from the reference surface 1 of the working platform. ds ;

[0032] Step 22: The industrial control computer controls the bottom rotating platform of the bottom thick hydraulic rod 5 to rotate 90°, so that the top ceramic head and the cylinder sleeve 2 are on the same axis as the drawn ultra-high temperature cylinder;

[0033] Step 23: The bottom thickness hydraulic rod 5 moves along the axial direction until the top ceramic head contacts the bottom of the cylinder. The bottom thickness hydraulic rod 5 stops moving, and the industrial control computer records the distance x that the bottom thickness hydraulic rod has moved. s The bottom thickness T of the drawing cylinder is:

[0034] T = H ds -x s -S w -S b

[0035] In the above formula, Sw S represents the bottom thickness of the water-cooled mold sleeve in the working platform. b The thickness of the bottom of the annular sleeve in the working platform.

[0036] Specifically, step 3 includes:

[0037] Step 31: When the bottom thickness hydraulic rod is stable, the laser detector 8 is located at the top of the guide rail and the industrial control computer records its distance from the work platform reference surface 1 as H1;

[0038] Step 32: The laser detector 8 moves vertically downwards along the guide rail and outputs a laser signal. When the laser detector 8 displays the test distance L... e When ≤γ, the laser detector stops moving and records the vertical movement distance H2 of the laser detector 8, which is then fed back to the industrial control computer system to calculate the length L of the cylinder at this time:

[0039] L = H1 - H2 - S w -S b

[0040] Among them, γ is designed based on the outer diameter of the formed cylinder.

[0041] Specifically, step 4 includes:

[0042] Step 41: After the laser measuring instrument completes the detection of the cylinder length parameters after stretching, the industrial control computer controls the electromagnetic ultrasonic thickness gauge 6 to move to the relative measurement positions S1, S2, and S3 in the detection device where the cylinder is located according to the preset program.

[0043] S1 = S j1 +S w +S b

[0044] S2 = S j2 +S w +S b

[0045] S3 = S j3 +S w +S b

[0046] In the above, S j1 S j2 S j3 These are the areas where the wall thickness of the ultra-high temperature cylinder needs to be tested after the drawing process;

[0047] Step 42: After the electromagnetic ultrasonic testing instrument 6 moves to the predetermined position, the electromagnetic ultrasonic testing instrument 6 begins to detect the cylinder wall thickness D at positions S1, S2, and S3. n1 D n2 D n3 :

[0048]

[0049] In the above formula, T n1 T n2 and T n3 The cylinder D after drawing n1 D n2 D n3 The time difference between the two echo signals at the location; C is the propagation speed of electromagnetic ultrasound in the workpiece.

[0050] Specifically, step 5 includes:

[0051] Step 51: After the cylinder's length, bottom thickness, and wall thickness parameters are detected, the industrial control computer controls the laser detector to move to the preset initial position;

[0052] Step 52: After the bottom thickness hydraulic rod rotates 90° and returns to its initial position, the ejection rod 10 starts to complete the ejection of the cylinder. After that, the robotic arm picks up the cylinder, and the three sets of wall thickness hydraulic rods begin to return to their initial positions.

[0053] Step 53: The industrial control computer compares the cylindrical product forming specifications established in the process flow to determine whether the bottom thickness, body length, wall thickness and other parameters of the cylindrical body after drawing and forming meet the forming size requirements. Products that meet the forming size specifications are placed on the subsequent transmission device, while products that do not meet the forming size specifications are placed in the unqualified area.

[0054] (III) Beneficial Effects

[0055] This invention proposes an automatic detection device and method for ultra-high temperature cylinders, which has the following advantages:

[0056] 1) This device eliminates the need for mold replacement, enabling the inspection of cylinders with outer diameters ranging from 85 to 120 mm. This avoids safety hazards caused by mold changes during the production of cylinders with different diameters, while also reducing mold changeover time and improving production efficiency. Three sets of wall thickness hydraulic rods are installed in the large-diameter water-cooled sleeve, moving towards the central axis to stabilize cylinders of different diameters, effectively increasing the adaptability of product inspection. Parameters such as length and wall thickness are calculated using a laser measuring instrument and an electromagnetic ultrasonic thickness gauge. Both the laser and electromagnetic ultrasonic instruments can move on guide rails to meet the inspection requirements for cylinders with outer diameters ranging from 85 to 120 mm.

[0057] 2) This invention can be integrated with existing stamping production lines to achieve digital and automated operations, effectively distinguishing product forming quality and improving inspection accuracy. After the device completes the inspection, it outputs a signal and feeds it back to the industrial control computer. After receiving forming parameters such as body length, bottom thickness, and wall thickness, it compares them with the forming parameters set in the system to determine whether the product is qualified. The control system then places qualified products onto the material transfer device, while unqualified products are placed in the waste area. Compared to operators using calipers for inspection, this device eliminates inspection errors caused by different operators and achieves higher inspection accuracy.

[0058] 3) The detection device of this invention can achieve high-precision and high-efficiency detection at temperatures below 1000℃. A water-cooling circulation system is installed inside the sleeve that directly contacts the ultra-high temperature cylinder, preventing device failure due to prolonged contact with the cylinder. Furthermore, ceramic materials are used at the positioning devices of the ultra-high temperature cylinder, the wall-thickness hydraulic rod, and the bottom-thickness hydraulic rod to avoid device failure due to prolonged contact. The ceramic structure at the wall-thickness hydraulic rod is located inside the water-cooled sleeve, while the top ceramic structure of the bottom-thickness hydraulic rod is located outside the sleeve, preventing damage to the ceramic materials during placement of the ultra-high temperature cylinder. Attached Figure Description

[0059] Figure 1 This is a structural diagram of the device of the present invention;

[0060] Figure 2 This is a schematic diagram of the working platform of the present invention;

[0061] Figure 3 This is a schematic diagram of the annular sleeve of the present invention;

[0062] Figure 4 This is a schematic diagram of the water-cooled sleeve of the present invention;

[0063] Figure 5 This is a schematic diagram of the wall thickness hydraulic rod of the present invention;

[0064] Figure 6 This is a schematic diagram of the thick hydraulic rod of the present invention;

[0065] Figure 7 This is a schematic diagram of the electromagnetic ultrasonic thickness gauge of the present invention;

[0066] Figure 8 This is a schematic diagram of the guide rail of the electromagnetic ultrasonic thickness gauge of the present invention;

[0067] Figure 9 This is a schematic diagram of the laser detector of the present invention;

[0068] Figure 10 This is a schematic diagram of the guide rail for the laser detector of the present invention;

[0069] Figure 11 This is a schematic diagram of the ejector bar of the present invention;

[0070] Figure 12 This is a schematic diagram of the cylinder required for the experiment of this invention;

[0071] Figure 13 This is a flowchart of the workflow of the present invention. Detailed Implementation

[0072] To make the objectives, contents, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0073] Example 1

[0074] An automatic detection device for ultra-high temperature cylinders includes: a working platform 1, a cylinder sleeve 2, a cylinder water-cooled sleeve 3, a wall thickness hydraulic rod 4, a bottom thickness hydraulic rod 5, an electromagnetic ultrasonic thickness gauge 6, a thickness gauge guide rail 7, a laser detector 8, and a laser detector guide rail 9.

[0075] The working platform 1 is located at the bottom, and a cylindrical sleeve 2 is provided on the working platform 1. A sliding groove is provided on the side wall of the cylindrical sleeve 2 along the axial direction, and multiple through holes are evenly distributed on the side wall of the cylindrical sleeve 2 along the circumferential direction. A cylindrical water-cooled sleeve 3 is provided inside the cylindrical sleeve 2. The sliding groove and through holes are provided at the same positions on the side wall of the cylindrical sleeve 2 and the side wall of the cylindrical water-cooled sleeve 3.

[0076] Each of the cylindrical sleeves 2 has an externally provided thick-walled hydraulic rod 4 at the through hole on the side wall;

[0077] The upper end of the bottom-thickness hydraulic rod 5 is provided with a U-shaped probe, one end of which is placed in the water-cooled sleeve 3 of the cylinder.

[0078] The working platform 1 is vertically provided with a laser detector guide rail 9, and a laser detector 8 is sleeved on the laser detector guide rail 9. The probe of the laser detector 8 is placed outside the cylindrical sleeve 2.

[0079] The working platform 1 is also vertically provided with a thickness gauge guide rail 7, and an electromagnetic ultrasonic thickness gauge 6 is sleeved on the thickness gauge guide rail 7. The probe of the electromagnetic ultrasonic thickness gauge 6 is placed in the sliding groove of the cylinder sleeve 2.

[0080] The ultra-high temperature forming cylinder is placed in the cylinder water-cooling sleeve 3. The bottom thickness of the forming cylinder is detected by the bottom thickness hydraulic rod 5, the length of the forming cylinder is detected by the laser detector 8, and the wall thickness is detected at different positions of the forming cylinder by the electromagnetic ultrasonic thickness gauge 6. The detection results are output to an external industrial control computer. The industrial control computer compares the detected wall thickness, length and bottom thickness parameters with the dimensional requirements of the formed cylinder in the process forming specification, and selects the cylinder that meets the forming specification.

[0081] The upper surface of the working platform 1 and the bottom of the cylindrical sleeve 2 and the cylindrical water-cooled sleeve 3 are provided with a circular hole of the same diameter and coaxiality. The circular hole is provided with a material ejection rod 10, which is used to eject the formed cylindrical body after the inspection is completed.

[0082] A method for using an automatic detection device for ultra-high temperature cylinders includes the following steps:

[0083] Step 1: Place the drawn ultra-high temperature cylinder in the cylinder water-cooling sleeve 3. The industrial control computer controls the three sets of wall thickness hydraulic rods 4 to move towards the cylinder axis until they contact the cylinder surface. Record the horizontal movement distance of the wall thickness hydraulic rods 4 and calculate the outer diameter φ of the formed cylinder.

[0084] Step 2: The industrial control computer controls the bottom thickness hydraulic rod 5 to move along the axial direction until the top ceramic head contacts the bottom of the cylinder. The bottom thickness hydraulic rod 5 then stops moving, and the industrial control computer records the distance x that the bottom thickness hydraulic rod has moved. s Measure the bottom thickness T of the cylinder;

[0085] Step 3: When the bottom thickness hydraulic rod 5 is stable, the laser detector 8 moves vertically downward along the guide rail and outputs a laser signal to measure the length L of the cylinder.

[0086] Step 4: After the laser detector 8 completes the detection of the length parameters of the cylinder after stretching, the industrial control computer controls the electromagnetic ultrasonic thickness gauge 6 to move to the relative measurement position in the water-cooled sleeve 3 of the cylinder to detect the wall thickness of the cylinder.

[0087] Step 5: After the cylinder length, bottom thickness and wall thickness parameters are detected, the industrial control computer compares them with the cylinder product forming specifications formulated in the process flow to determine whether the bottom thickness, length, wall thickness and other parameters of the cylinder after drawing and forming meet the forming size requirements.

[0088] Specifically, step 1 includes:

[0089] Step 11: When the cylinder drawing is finished, the industrial control computer receives the hydraulic data after the drawing is completed, controls the transmission robot to pick up the drawn ultra-high temperature cylinder, and moves it towards the detection device;

[0090] Step 12: When the transfer robot grips the stretched ultra-high temperature cylinder and moves it to a position above the central axis of the sleeve, with the bottom edge of the ultra-high temperature cylinder being η away from the top edge of the sleeve, the hydraulic device of the mechanical gripper is released, and the stretched ultra-high temperature cylinder is placed in the cylinder water-cooled sleeve 3.

[0091] Step 13: The industrial control computer controls the three sets of wall thickness hydraulic rods 4 to move towards the cylinder axis until they contact the cylinder surface. The wall thickness hydraulic rods 4 immediately stop moving and the horizontal movement distances x4, x5, and x6 in the hydraulic rod space are recorded. Compare the distances x1, x2, and x3 of the wall thickness hydraulic rods from the axis before movement to calculate the outer diameter φ of the formed cylinder.

[0092] D1 = x1 - x4

[0093] D2 = x2 - x5

[0094] D3 = x3 - x6

[0095]

[0096] In the above formula, D1, D2, and D3 are the outer diameters of the cylinder after stretching, as measured by the three sets of hydraulic rods.

[0097] Specifically, step 2 includes:

[0098] Step 21: After the industrial control computer completes the acquisition of the outer diameter parameters of the cylinder, it records the initial height H of the top ceramic head of the bottom thickness hydraulic rod 5 from the reference surface 1 of the working platform. ds ;

[0099] Step 22: The industrial control computer controls the bottom rotating platform of the bottom thick hydraulic rod 5 to rotate 90°, so that the top ceramic head and the cylinder sleeve 2 are on the same axis as the drawn ultra-high temperature cylinder;

[0100] Step 23: The bottom thickness hydraulic rod 5 moves along the axial direction until the top ceramic head contacts the bottom of the cylinder. The bottom thickness hydraulic rod 5 stops moving, and the industrial control computer records the distance x that the bottom thickness hydraulic rod has moved. s The bottom thickness T of the drawing cylinder is:

[0101] T = H ds -x s -S w -S b

[0102] In the above formula, S w S represents the bottom thickness of the water-cooled mold sleeve in the working platform. b The thickness of the bottom of the annular sleeve in the working platform.

[0103] Specifically, step 3 includes:

[0104] Step 31: When the bottom thickness hydraulic rod is stable, the laser detector 8 is located at the top of the guide rail and the industrial control computer records its distance from the work platform reference surface 1 as H1;

[0105] Step 32: The laser detector 8 moves vertically downwards along the guide rail and outputs a laser signal. When the laser detector 8 displays the test distance L... e When ≤γ, the laser detector stops moving and records the vertical movement distance H2 of the laser detector 8, which is then fed back to the industrial control computer system to calculate the length L of the cylinder at this time:

[0106] L = H1 - H2 - S w -S b

[0107] Among them, γ is designed based on the outer diameter of the formed cylinder.

[0108] Specifically, step 4 includes:

[0109] Step 41: After the laser measuring instrument completes the detection of the cylinder length parameters after stretching, the industrial control computer controls the electromagnetic ultrasonic thickness gauge 6 to move to the relative measurement positions S1, S2, and S3 in the detection device where the cylinder is located according to the preset program.

[0110] S1 = S j1 +S w +S b

[0111] S2 = S j2 +S w +S b

[0112] S3 = S j3 +S w +S b

[0113] In the above, S j1 S j2 S j3 These are the areas where the wall thickness of the ultra-high temperature cylinder needs to be tested after the drawing process;

[0114] Step 42: After the electromagnetic ultrasonic testing instrument 6 moves to the predetermined position, the electromagnetic ultrasonic testing instrument 6 begins to detect the cylinder wall thickness D at positions S1, S2, and S3. n1 D n2 D n3 :

[0115]

[0116] In the above formula, T n1 T n2 and T n3 The cylinder D after drawing n1 D n2 D n3 The time difference between the two echo signals at the location; C is the propagation speed of electromagnetic ultrasound in the workpiece.

[0117] Specifically, step 5 includes:

[0118] Step 51: After the cylinder's length, bottom thickness, and wall thickness parameters are detected, the industrial control computer controls the laser detector to move to the preset initial position;

[0119] Step 52: After the bottom thickness hydraulic rod rotates 90° and returns to its initial position, the ejection rod 10 starts to complete the ejection of the cylinder. After that, the robotic arm picks up the cylinder, and the three sets of wall thickness hydraulic rods begin to return to their initial positions.

[0120] Step 53: The industrial control computer compares the cylindrical product forming specifications established in the process flow to determine whether the bottom thickness, body length, wall thickness and other parameters of the cylindrical body after drawing and forming meet the forming size requirements. Products that meet the forming size specifications are placed on the subsequent transmission device, while products that do not meet the forming size specifications are placed in the unqualified area.

[0121] Example 2

[0122] In this embodiment, the test is performed on a cylinder with an outer diameter of 120mm. The length of the cylinder is 450mm and the bottom thickness is 35.4mm. The wall thickness of the cylinder at positions H30, H85, and H300 after the drawing is measured. The wall thickness parameters at each position should be 59.5mm, 65.0mm, and 66.0mm, respectively.

[0123] The industrial control computer receives hydraulic data after the drawing process is completed, and controls the transfer robot to grip the drawn ultra-high temperature cylinder and move it towards the testing device. When the transfer robot moves the drawn ultra-high temperature cylinder to coincide with the central axis of the sleeve in the testing device, and the bottom edge of the ultra-high temperature cylinder is 50mm away from the top edge of the sleeve, the hydraulic device of the mechanical gripper is released, placing the drawn ultra-high temperature cylinder into the testing device. After the transfer equipment completes the unloading process, the industrial control computer sets a stabilization time of 2 seconds to ensure that the ultra-high temperature cylinder is in a stable state in the testing device. Then, the industrial control computer controls the three sets of wall thickness hydraulic rods 4 to move towards the cylinder axis until they contact the cylinder surface. The wall thickness hydraulic rods 4 immediately stop moving and record the horizontal movement distances x4, x5, and x6 in the hydraulic rod space. Compare the distances x1, x2, and x3 from the axis before the wall thickness hydraulic rods move to calculate the outer diameter φ of the formed cylinder.

[0124] D1 = x1 - x4

[0125] D2 = x2 - x5

[0126] D3 = x3 - x6

[0127]

[0128] The cylindrical body of this model has a formed length of 450mm. The distance H from the bottom thickness hydraulic rod to the working reference surface is preset within the industrial control computer. ds =600mm. After the industrial control computer completes the acquisition of the cylinder's outer diameter parameters, it verifies and records the initial height H of the bottom thickness hydraulic rod 5 from the work platform reference plane 1. ds=600mm. The industrial control computer controls the bottom rotating platform of the bottom thickness hydraulic rod to rotate 90°, so that the top ceramic head, the cylinder sleeve, and the ultra-high temperature cylinder after drawing are on the same axis. The bottom thickness hydraulic rod moves along the axial direction until the top ceramic head contacts the bottom of the cylinder, at which point the bottom thickness hydraulic rod 5 immediately stops moving, and the industrial control computer records the distance x that the bottom thickness hydraulic rod has moved. s The bottom thickness T of the drawing cylinder is:

[0129] T = H ds -x s -S w -S b

[0130] The laser detector 8 is located within the guide rail 9 of the work platform and can move vertically along the guide rail. When the bottom thickness hydraulic rod is stable, the laser detection device is located at the top of the guide rail, and the industrial control computer records its distance from the reference surface of the work platform 1 as H1 = 600mm. Subsequently, the laser detector 8 moves vertically downward along the guide rail and outputs a laser signal. When the laser detector 8 displays the test distance L... e When the value is ≤50, the slider equipped with the laser detector immediately stops moving and records the vertical movement distance H2 of the laser detector. This information is then fed back to the industrial control system, which calculates the length L of the cylinder at this time.

[0131] L = H1 - H2 - S w -S b

[0132] The industrial control computer is pre-programmed to detect the wall thickness of the drawn cylinder at three positions: H30, H85, and H300. An electromagnetic ultrasonic thickness gauge 6 is mounted on the work platform guide rail 7, and can move vertically along the guide rail. Simultaneously, the slide rail carrying the electromagnetic ultrasonic gauge moves χ = 4.95 mm from its initial edge position S5 = 143 mm (distance from the midpoint of the slide rail to the center of the cylinder) towards the cylinder's axis. After the laser detector 6 completes the detection of the cylinder's length parameters after drawing, the industrial control computer controls the electromagnetic ultrasonic thickness gauge 6 to move to the relative measurement positions S1, S2, and S3 within the detection device of the cylinder according to a pre-programmed sequence.

[0133] S1 = S j1 +S w +S b

[0134] S2 = S j2 +S w +S b

[0135] S3 = S j3 +S w +S b

[0136] After the electromagnetic ultrasonic testing instrument 6 moves to the predetermined position, it begins to detect the cylinder wall thickness D at positions S1, S2, and S3. n1 D n2 D n3 :

[0137]

[0138] After the cylinder's wall thickness, length, and bottom thickness parameters are measured, the industrial control computer controls the laser measuring instrument to move to the preset initial position H1. The bottom thickness hydraulic rod moves vertically back to the initial position H. ds Then rotate 90°. After that, the unloading device 10 is activated, and after the cylinder is ejected, the robotic arm grips the cylinder, and the three sets of wall thickness hydraulic rods begin to return to their initial positions. The industrial control computer compares the detected wall thickness, body length, and bottom thickness parameters with the dimensional requirements of the formed cylinder in the process forming specification. Cylinders that meet the forming specification are placed on the subsequent conveying equipment, while cylinders that do not meet the forming specification are placed in the waste area.

[0139] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An automatic detection device for ultra-high temperature cylinders, characterized in that, include: Work platform (1), cylinder sleeve (2), cylinder water-cooled sleeve (3), wall thickness hydraulic rod (4), bottom thickness hydraulic rod (5), electromagnetic ultrasonic thickness gauge (6), thickness gauge guide rail (7), laser detector (8), laser detector guide rail (9); The working platform (1) is located at the bottom, and a cylindrical sleeve (2) is provided on the working platform (1). A sliding groove is provided on the side wall of the cylindrical sleeve (2) along the axial direction, and multiple through holes are evenly distributed on the side wall of the cylindrical sleeve (2) along the circumferential direction. A cylindrical water-cooled sleeve (3) is provided inside the cylindrical sleeve (2). A sliding groove and a through hole are provided at the same position on the side wall of the cylindrical sleeve (2) and the side wall of the cylindrical water-cooled sleeve (3). Each of the cylindrical sleeves (2) has a wall thickness hydraulic rod (4) on the outside of the through hole on the side wall; The upper end of the bottom thick hydraulic rod (5) is provided with a U-shaped probe, and one end of the U-shaped probe is placed in the water-cooled sleeve (3) of the cylinder. The working platform (1) is vertically provided with a laser detector guide rail (9), and a laser detector (8) is sleeved on the laser detector guide rail (9). The probe of the laser detector (8) is placed outside the cylindrical sleeve (2). The working platform (1) is also vertically provided with a thickness gauge guide rail (7), and an electromagnetic ultrasonic thickness gauge (6) is sleeved on the thickness gauge guide rail (7). The probe of the electromagnetic ultrasonic thickness gauge (6) is placed in the sliding groove of the cylinder sleeve (2). The ultra-high temperature forming cylinder is placed in the cylinder water-cooling sleeve (3). The bottom thickness of the forming cylinder is detected by the bottom thickness hydraulic rod (5). The length of the forming cylinder is detected by the laser detector (8). The wall thickness is detected at different positions of the forming cylinder by the electromagnetic ultrasonic thickness gauge (6). The detection results are output to the external industrial control computer. The industrial control computer compares the detected wall thickness, length and bottom thickness parameters with the size requirements of the formed cylinder in the process forming specification, and selects the cylinder that meets the forming specification.

2. The automatic detection device for ultra-high temperature cylinders as described in claim 1, characterized in that, The upper surface of the working platform (1) and the bottom of the cylindrical sleeve (2) and the cylindrical water-cooled sleeve (3) are provided with a circular hole of the same diameter and coaxiality. A material ejection rod (10) is provided in the circular hole. The material ejection rod (10) is used to eject the formed cylindrical body after the inspection is completed.

3. A method for using an automatic detection device for ultra-high temperature cylinders, characterized in that, The method of using the automatic detection device is implemented based on the automatic detection device of claim 1, and specifically includes the following steps: Step 1: Place the drawn ultra-high temperature cylinder in the cylinder water-cooling sleeve (3). The industrial control computer controls the three sets of wall thickness hydraulic rods (4) to move towards the cylinder axis until they contact the cylinder surface. Record the horizontal movement distance of the wall thickness hydraulic rods (4) and calculate the outer diameter of the formed cylinder. ; Step 2: The industrial control computer controls the bottom thickness hydraulic rod (5) to move along the axial direction until the top ceramic head contacts the bottom of the cylinder. The bottom thickness hydraulic rod (5) stops moving, and the industrial control computer records the distance the bottom thickness hydraulic rod has moved. Measure the bottom thickness T of the cylinder; Step 3: When the bottom thickness hydraulic rod (5) is stable, the laser detector (8) moves vertically downward along the guide rail and outputs a laser signal to measure the length L of the cylinder; Step 4: After the laser detector (8) completes the detection of the length parameters of the cylinder after stretching, the industrial control computer controls the electromagnetic ultrasonic thickness gauge (6) to move to the relative measurement position in the water-cooled sleeve (3) of the cylinder to detect the wall thickness of the cylinder. Step 5: After the cylinder length, bottom thickness and wall thickness parameters are detected, the industrial control computer compares them with the cylinder product forming specifications formulated in the process flow to determine whether the bottom thickness, length and wall thickness parameters of the cylinder after drawing and forming meet the forming size requirements.

4. The method of using the ultra-high temperature cylinder automatic detection device as described in claim 3, characterized in that, Step 1 specifically includes: Step 11: When the cylinder drawing is finished, the industrial control computer receives the hydraulic data after the drawing is completed, controls the transmission robot to pick up the drawn ultra-high temperature cylinder, and moves it towards the detection device; Step 12: When the transfer robot picks up the extended ultra-high temperature cylinder and moves it above the central axis of the sleeve, the bottom edge of the ultra-high temperature cylinder is at a distance from the top edge of the sleeve. The hydraulic device of the mechanical gripper is released, and the ultra-high temperature cylinder after stretching is placed in the cylinder water-cooled sleeve (3); Step 13: The industrial control computer controls the three sets of wall thickness hydraulic rods (4) to move towards the cylinder axis until they contact the cylinder surface. The wall thickness hydraulic rods (4) immediately stop moving and record the horizontal movement distances x4, x5, and x6 in the hydraulic rod space. Compare the distances x1, x2, and x3 from the axis before the wall thickness hydraulic rods move to calculate the outer diameter of the formed cylinder. : In the above formula, D1, D2, and D3 are the outer diameters of the cylinder after stretching, as measured by the three sets of hydraulic rods.

5. The method of using the ultra-high temperature cylinder automatic detection device as described in claim 4, characterized in that, Step 2 specifically includes: Step 21: After the industrial control computer completes the acquisition of the outer diameter parameters of the cylinder, it records the initial height of the top ceramic head of the bottom thickness hydraulic rod (5) from the reference plane of the working platform. ; Step 22: The industrial control computer controls the bottom rotating platform of the bottom thick hydraulic rod (5) to rotate 90°, so that the top ceramic head and the cylinder sleeve (2) are on the same axis as the drawn ultra-high temperature cylinder; Step 23: The bottom thickness hydraulic rod (5) moves along the axial direction until the top ceramic head contacts the bottom of the cylinder. The bottom thickness hydraulic rod (5) stops moving, and the industrial control computer records the distance the bottom thickness hydraulic rod has moved. The bottom thickness T of the drawing cylinder is: In the above formula, The thickness of the bottom of the water-cooled mold sleeve in the working platform; The thickness of the bottom of the annular sleeve in the working platform.

6. The method of using the ultra-high temperature cylinder automatic detection device as described in claim 5, characterized in that, Step 3 specifically includes: Step 31: When the bottom thickness hydraulic rod is stable, the laser detector (8) is located at the top of the guide rail and the distance from it to the reference surface of the working platform is recorded by the industrial control computer as H1; Step 32: The laser detector (8) moves vertically downward along the guide rail and outputs a laser signal. When the laser detector (8) displays the test distance... At this time, the laser detector stops moving and records the vertical movement distance H2 of the laser detector (8), feeds it back to the industrial control computer system, and calculates the length L of the cylinder at this time as: in, The design is based on the outer diameter of the molded cylinder.

7. The method of using the automatic detection device for ultra-high temperature cylinders as described in claim 6, characterized in that, Step 4 specifically includes: Step 41: After the laser detector completes the detection of the cylinder length parameters after stretching, the industrial control computer controls the electromagnetic ultrasonic thickness gauge (6) to move to the relative measurement positions S1, S2, and S3 in the detection device where the cylinder is located according to the preset program: In the above, S j1 S j2 S j3 These are the areas where the wall thickness of the ultra-high temperature cylinder needs to be tested after the drawing process; Step 42: After the electromagnetic ultrasonic thickness gauge (6) moves to the predetermined position, the electromagnetic ultrasonic thickness gauge (6) begins to detect the wall thickness D of the cylinder at positions S1, S2, and S3. n1 D n2 D n3 : In the above formula, , and The cylinder D after drawing n1 D n2 D n3 The time difference between the two echo signals at the location; C is the propagation speed of electromagnetic ultrasound in the workpiece.

8. The method of using the ultra-high temperature cylinder automatic detection device as described in claim 7, characterized in that, Step 5 specifically includes: Step 51: After the cylinder's length, bottom thickness, and wall thickness parameters are detected, the industrial control computer controls the laser detector to move to the preset initial position; Step 52: After the bottom thickness hydraulic rod rotates 90° and returns to the initial position, the ejection rod (10) starts to complete the ejection of the cylinder. After that, the robotic arm clamps the cylinder, and the three sets of wall thickness hydraulic rods begin to return to the initial position. Step 53: The industrial control computer compares the cylindrical product forming specifications established in the process flow to determine whether the bottom thickness, body length, and wall thickness parameters of the cylindrical body after drawing and forming meet the forming size requirements. Products that meet the forming size specifications are placed on the subsequent transmission device, while products that do not meet the forming size specifications are placed in the unqualified area.

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