Ultrahigh-temperature cylinder automatic detection device and use method

Abstract

The invention relates to an automatic detection device for an ultra-high-temperature cylinder and a use method, and belongs to the technical field of special detection for the ultra-high-temperature cylinder. The device comprises a loading working platform, a wall thickness detection device, a bottom thickness detection device and a body length detection device. The ultrahigh-temperature cylinder is fixed through successive movement of the three sets of hydraulic rods and the bottom thickness hydraulic rod, and the length, bottom thickness and wall thickness forming parameters of the cylinder are determined through the laser detector and the electromagnetic ultrasonic thickness gauge. The device is connected with an existing stamping production line through transmission equipment, and the aims of automatic detection of the drawn and stretched barrel and automatic and high-precision 100% detection of the stamped and formed barrel are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of ultra-high temperature cylinder special detection, and in particular relates to an ultra-high temperature cylinder automatic detection device and a use method thereof. Background Art

[0002] After the barrel is punched or rough-processed, the length, bottom thickness and wall thickness of the barrel need to be measured to check whether they meet the dimensions of the product drawing to prevent the size deviation from affecting the next process of the product. The existing measurement method mostly uses the inspector to use a handheld measuring tool to detect the size of the barrel after forming. However, the temperature of the barrel after drawing is nearly one thousand degrees Celsius. The measuring tool will cause high-temperature deformation and failure during the long-term testing process, and it is impossible to accurately and effectively detect the size of the barrel after forming. Moreover, with the improvement of production line production efficiency, it is difficult to achieve a 100% detection rate through manual inspection. At the same time, there are safety hazards to operators during the ultra-high temperature barrel inspection process.

[0003] Therefore, a measuring device that can automatically and digitally detect the parameters of the cylinder after forming is designed to ensure the measurement accuracy after the cylinder is processed, so as to avoid the next process of products with out-of-tolerance dimensions, thereby improving the processing efficiency and quality of the cylinder. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the present invention is how to provide an ultra-high temperature cylinder automatic detection device and a method of use, so as to solve the problem in the prior art that the size of the cylinder after forming cannot be accurately and effectively detected.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the present invention proposes an ultra-high temperature cylinder automatic detection device, comprising: a working platform 1, a cylinder sleeve 2, a cylinder water cooling 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 arranged at the bottom, and a barrel sleeve 2 is arranged on the working platform 1. A sliding groove is opened on the side wall of the barrel sleeve 2 in the axial direction, and a plurality of through holes are evenly distributed on the side wall of the barrel sleeve 2 in the circumferential direction. A barrel water-cooling sleeve 3 is arranged inside the barrel sleeve 2, and a sliding groove and a through hole are opened at the same position of the side wall of the barrel sleeve 2 and the side wall of the barrel water-cooling sleeve 3;

[0009] Each of the cylinder sleeves 2 is provided with a wall-thickness hydraulic rod 4 on the outside of the through hole on the side wall;

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

[0011] A laser detector guide rail 9 is vertically arranged on the working platform 1, a laser detector 8 is sleeved on the laser detector guide rail 9, and a probe of the laser detector 8 is placed outside the cylinder sleeve 2;

[0012] The working platform 1 is also vertically provided with a thickness gauge guide rail 7, on which an electromagnetic ultrasonic thickness gauge 6 is sleeved, and 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 formed cylinder is placed in the cylinder water-cooling sleeve 3, the bottom thickness of the formed cylinder is detected by the bottom thickness hydraulic rod 5, the body length of the formed cylinder is detected by the laser detector 8, and the wall thickness of different positions of the formed cylinder is detected by the electromagnetic ultrasonic thickness gauge 6. The detection results are output to the external industrial control computer, which compares the detected wall thickness, body length and bottom thickness parameters with the requirements for the size of the cylinder after forming in the process forming specifications, and selects the cylinder that meets the forming specifications.

[0014] Among them, the upper surface of the working platform 1 and the bottom of the cylinder sleeve 2 and the cylinder water-cooling sleeve 3 are provided with coaxial and same-diameter circular holes, and a material ejection rod 10 is arranged in the circular hole. The material ejection rod 10 is used to eject the formed cylinder after the inspection is completed.

[0015] A method for using an ultra-high temperature cylinder automatic detection device specifically comprises the following steps:

[0016] Step 1: Place the ultra-high temperature cylinder after drawing and stretching in the cylinder water cooling sleeve 3, and the industrial computer controls three sets of wall thickness hydraulic rods 4 to move toward the axis of the cylinder until they contact the surface of the cylinder, record the horizontal movement distance of the wall thickness hydraulic rods 4, and calculate the outer diameter φ of the cylinder after forming;

[0017] Step 2: The industrial computer controls the bottom thickness hydraulic rod 5 to move along the axis until its ceramic head contacts the bottom of the cylinder. The bottom thickness hydraulic rod 5 stops moving and the industrial computer records the moving distance x of the bottom thickness hydraulic rod. 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 drawing, the industrial computer controls the electromagnetic ultrasonic thickness gauge 6 to move to the relative measurement position in the cylinder water cooling sleeve 3 where the cylinder is located to detect the wall thickness of the cylinder;

[0020] Step 5: After completing the detection of the barrel body length, bottom thickness and wall thickness parameters, the industrial computer compares the barrel product forming specifications formulated in the process flow to determine whether the barrel bottom thickness, body length, wall thickness and other parameters after stretch forming meet the forming size requirements.

[0021] Wherein, the step 1 specifically includes:

[0022] Step 11: When the cylinder is stretched, the industrial computer controls the hydraulic data received after the stretching is completed, controls the transmission robot to clamp the ultra-high temperature cylinder after the stretching, and moves it to the detection device;

[0023] Step 12: When the transfer robot grips the stretched ultra-high temperature cylinder and moves to above the central axis of the sleeve, the distance between the bottom edge of the ultra-high temperature cylinder and the top edge of the sleeve is η, the hydraulic device of the mechanical gripper is released, and the stretched ultra-high temperature cylinder is placed in the cylinder water-cooling sleeve 3;

[0024] Step 13: The industrial computer controls the three sets of wall thickness hydraulic rods 4 to move toward the axis of the cylinder until they touch the surface of the cylinder. 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, and calculate the outer diameter φ of the cylinder after forming:

[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 extension detected by the three groups of hydraulic rods.

[0030] Wherein, the step 2 specifically includes:

[0031] Step 21: After the industrial computer completes the collection 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 plane 1 of the working platform ds ;

[0032] Step 22: The industrial 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 ultra-high temperature cylinder after drawing;

[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 computer records the moving distance x of the bottom thickness hydraulic rod s , then 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 is the bottom thickness of the water-cooled mold sleeve in the working platform; b It is the bottom thickness of the annular sleeve in the working platform.

[0036] Wherein, the step 3 specifically 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 computer records its distance from the work platform reference plane 1 as H1;

[0038] 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 L e When ≤γ, the laser detector stops moving and records the vertical moving distance H2 of the laser detector 8, which is fed back to the industrial computer system and the length L of the cylinder at this time is calculated as:

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

[0040] Among them, γ is designed according to the outer diameter of the forming cylinder.

[0041] Wherein, the step 4 specifically includes:

[0042] Step 41: After the laser detector completes the detection of the length parameters of the cylinder after drawing, the industrial 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 They are the areas where the wall thickness of the ultra-high temperature cylinder needs to be tested after the drawing is completed;

[0047] Step 42: When the electromagnetic ultrasonic detector 6 moves to the predetermined position, the electromagnetic ultrasonic detector 6 starts to detect the wall thickness D of the cylinder at the positions S1, S2, and S3. n1 , D n2 , D n3 :

[0048]

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

[0050] Wherein, the step 5 specifically includes:

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

[0052] Step 52: After the bottom thickness hydraulic rod rotates 90° and returns to the initial position, the ejector rod 10 starts to complete the ejection of the cylinder, and then the mechanical arm clamps the cylinder, and the three sets of wall thickness hydraulic rods begin to return to the initial position;

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

[0054] (III) Beneficial effects

[0055] The present invention provides an ultra-high temperature cylinder automatic detection device and a method for using the same, which has the following beneficial methods:

[0056] 1) The device can meet the inspection requirements of cylinders with an outer diameter of 85 to 120 mm without changing the mold, avoiding safety hazards caused by mold replacement during the production of cylinders with different calibers, while reducing mold change time and improving production efficiency. Three sets of wall thickness hydraulic rods are installed in the large-diameter water-cooled sleeve, moving toward the center axis to stabilize cylinders of different calibers, which can effectively increase the adaptability of product inspection. Parameters such as body length and wall thickness are calculated by laser measuring instruments and electromagnetic ultrasonic thickness gauges, and the laser detector and electromagnetic ultrasonic detector can move on the guide rail to meet the inspection requirements of cylinders with an outer diameter of 85 to 120 mm.

[0057] 2) The present invention can be combined with the existing stamping production line to realize digital and automated operation, which can effectively distinguish the quality of product forming and improve the detection accuracy. After the device completes the detection, it outputs a signal and feeds it back to the industrial computer. After receiving the molding parameters such as body length, bottom thickness, wall thickness, etc., it compares with the molding parameters set in the system to determine whether it is a qualified product. The control transmission equipment will place the qualified products on the material transfer device and the unqualified products in the discard area. Compared with the operator using calipers for detection, this device can eliminate the detection errors of different operators and has higher detection accuracy.

[0058] 3) The detection device of the present invention can achieve high-precision and efficient detection work below 1000°C. A water-cooling circulation system is installed in the sleeve that is in direct contact with the ultra-high temperature cylinder to avoid failure of the detection device due to long-term contact with the ultra-high temperature cylinder. At the same time, ceramic materials are used in the positioning devices of the ultra-high temperature cylinder and the wall thickness hydraulic rod and bottom thickness hydraulic to avoid failure of the device due to long-term contact detection. The ceramic structure of the wall thickness hydraulic rod is located inside the water-cooling sleeve, and the ceramic structure at the top of the bottom thickness hydraulic rod is located outside the water-cooling sleeve to avoid damage to the ceramic material during the placement of the ultra-high temperature cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0062] Figure 4 It is a schematic diagram of the water cooling sleeve of the present invention;

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

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

[0065] Figure 7 It 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] Fig. 9 It is a schematic diagram of the laser detector of the present invention;

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

[0069] Fig.11 It is a schematic diagram of the material withdrawal rod of the present invention;

[0070] Fig.12 It is a schematic diagram of the cylinder required for the test of the present invention;

[0071] Fig.13 It is the work flow chart of the present invention. DETAILED DESCRIPTION

[0072] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0073] Example 1

[0074] An ultra-high temperature cylinder automatic detection device, comprising: a working platform 1, a cylinder sleeve 2, a cylinder water cooling 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 arranged at the bottom, and a barrel sleeve 2 is arranged on the working platform 1. A sliding groove is opened on the side wall of the barrel sleeve 2 in the axial direction, and a plurality of through holes are evenly distributed on the side wall of the barrel sleeve 2 in the circumferential direction. A barrel water-cooling sleeve 3 is arranged inside the barrel sleeve 2, and a sliding groove and a through hole are opened at the same position of the side wall of the barrel sleeve 2 and the side wall of the barrel water-cooling sleeve 3;

[0076] Each of the cylinder sleeves 2 is provided with a wall-thickness hydraulic rod 4 on the outside of the through hole on the side wall;

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

[0078] A laser detector guide rail 9 is vertically arranged on the working platform 1, a laser detector 8 is sleeved on the laser detector guide rail 9, and a probe of the laser detector 8 is placed outside the cylinder sleeve 2;

[0079] The working platform 1 is also vertically provided with a thickness gauge guide rail 7, on which an electromagnetic ultrasonic thickness gauge 6 is sleeved, and 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 formed cylinder is placed in the cylinder water-cooling sleeve 3, the bottom thickness of the formed cylinder is detected by the bottom thickness hydraulic rod 5, the body length of the formed cylinder is detected by the laser detector 8, and the wall thickness of different positions of the formed cylinder is detected by the electromagnetic ultrasonic thickness gauge 6. The detection results are output to the external industrial control computer, which compares the detected wall thickness, body length and bottom thickness parameters with the requirements for the size of the cylinder after forming in the process forming specifications, and selects the cylinder that meets the forming specifications.

[0081] Among them, the upper surface of the working platform 1 and the bottom of the cylinder sleeve 2 and the cylinder water-cooling sleeve 3 are provided with coaxial and same-diameter circular holes, and a material ejection rod 10 is arranged in the circular hole. The material ejection rod 10 is used to eject the formed cylinder after the inspection is completed.

[0082] A method for using an ultra-high temperature cylinder automatic detection device specifically comprises the following steps:

[0083] Step 1: Place the ultra-high temperature cylinder after drawing and stretching in the cylinder water cooling sleeve 3, and the industrial computer controls three sets of wall thickness hydraulic rods 4 to move toward the axis of the cylinder until they contact the surface of the cylinder, record the horizontal movement distance of the wall thickness hydraulic rods 4, and calculate the outer diameter φ of the cylinder after forming;

[0084] Step 2: The industrial computer controls the bottom thickness hydraulic rod 5 to move along the axis until its ceramic head contacts the bottom of the cylinder. The bottom thickness hydraulic rod 5 stops moving and the industrial computer records the moving distance x of the bottom thickness hydraulic rod. 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 drawing, the industrial computer controls the electromagnetic ultrasonic thickness gauge 6 to move to the relative measurement position in the cylinder water cooling sleeve 3 where the cylinder is located to detect the wall thickness of the cylinder;

[0087] Step 5: After completing the detection of the barrel body length, bottom thickness and wall thickness parameters, the industrial computer compares the barrel product forming specifications formulated in the process flow to determine whether the barrel bottom thickness, body length, wall thickness and other parameters after stretch forming meet the forming size requirements.

[0088] Wherein, the step 1 specifically includes:

[0089] Step 11: When the cylinder is stretched, the industrial computer controls the hydraulic data received after the stretching is completed, controls the transmission robot to clamp the ultra-high temperature cylinder after the stretching, and moves it to the detection device;

[0090] Step 12: When the transfer robot grips the stretched ultra-high temperature cylinder and moves to above the central axis of the sleeve, the distance between the bottom edge of the ultra-high temperature cylinder and the top edge of the sleeve is η, the hydraulic device of the mechanical gripper is released, and the stretched ultra-high temperature cylinder is placed in the cylinder water-cooling sleeve 3;

[0091] Step 13: The industrial computer controls the three sets of wall thickness hydraulic rods 4 to move toward the axis of the cylinder until they touch the surface of the cylinder. 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, and calculate the outer diameter φ of the cylinder after forming:

[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 extension detected by the three groups of hydraulic rods.

[0097] Wherein, the step 2 specifically includes:

[0098] Step 21: After the industrial computer completes the collection 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 plane 1 of the working platform ds ;

[0099] Step 22: The industrial 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 ultra-high temperature cylinder after drawing;

[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 computer records the moving distance x of the bottom thickness hydraulic rod s , then 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 is the bottom thickness of the water-cooled mold sleeve in the working platform; b It is the bottom thickness of the annular sleeve in the working platform.

[0103] Wherein, the step 3 specifically 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 computer records its distance from the work platform reference plane 1 as H1;

[0105] 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 L e When ≤γ, the laser detector stops moving and records the vertical moving distance H2 of the laser detector 8, which is fed back to the industrial computer system and the length L of the cylinder at this time is calculated as:

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

[0107] Among them, γ is designed according to the outer diameter of the forming cylinder.

[0108] Wherein, the step 4 specifically includes:

[0109] Step 41: After the laser detector completes the detection of the length parameters of the cylinder after drawing, the industrial 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 They are the areas where the wall thickness of the ultra-high temperature cylinder needs to be tested after the drawing is completed;

[0114] Step 42: When the electromagnetic ultrasonic detector 6 moves to the predetermined position, the electromagnetic ultrasonic detector 6 starts to detect the wall thickness D of the cylinder at the positions S1, S2, and S3. n1 , D n2 , D n3 :

[0115]

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

[0117] Wherein, the step 5 specifically includes:

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

[0119] Step 52: After the bottom thickness hydraulic rod rotates 90° and returns to the initial position, the ejector rod 10 starts to complete the ejection of the cylinder, and then the mechanical arm clamps the cylinder, and the three sets of wall thickness hydraulic rods begin to return to the initial position;

[0120] Step 53: The industrial computer compares the barrel product forming specifications formulated in the process flow to determine whether the barrel bottom thickness, body length, wall thickness and other parameters after stretch forming meet the forming size requirements, and places the products that meet the forming size specifications on the subsequent transmission device, while the 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 conducted on a stretched cylinder with an outer diameter of 120 mm. The stretched body is 450 mm long and 35.4 mm thick at the bottom. The wall thickness of the cylinder at positions H30, H85, and H300 after stretching is tested. The wall thickness parameters at each position should be 59.5 mm, 65.0 mm, and 66.0 mm.

[0123] The industrial computer controls the hydraulic data received after the drawing and stretching is completed, controls the transmission robot to clamp the ultra-high temperature cylinder after the drawing and stretching, and moves it to the detection device. When the transmission robot clamps the ultra-high temperature cylinder after the drawing and stretching and moves it to coincide with the central axis of the sleeve in the detection 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, and the ultra-high temperature cylinder after the drawing and stretching is placed in the detection device. After the transmission equipment completes the discharge program, the industrial computer sets the stabilization time of 2s to ensure that the ultra-high temperature cylinder is in a stable state in the detection device. The industrial computer controls the three groups of wall thickness hydraulic rods 4 to move toward the axis of the cylinder until they contact the surface of the cylinder. The wall thickness hydraulic rod 4 immediately stops moving and records 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 rod moves, and calculate the outer diameter φ of the cylinder after forming:

[0124] D1=x1-x4

[0125] D2=x2-x5

[0126] D3=x3-x6

[0127]

[0128] The length of the cylinder forming body of this model is 450mm, and the distance H from the bottom thickness hydraulic rod to the working reference surface is preset in the industrial computer. ds =600mm. After the industrial computer completes the collection of the outer diameter parameters of the cylinder, check and record the initial height H of the bottom thickness hydraulic rod 5 from the working platform reference plane 1. ds=600mm. The industrial computer controls the bottom rotating platform of the bottom thickness hydraulic rod to rotate 90°, so that the top ceramic head and the cylinder sleeve and the ultra-high temperature cylinder after drawing are on the same axis. The bottom thickness hydraulic rod moves along the axis until the top ceramic head touches the bottom of the cylinder, and the bottom thickness hydraulic rod 5 stops moving immediately. The industrial computer records the movement distance x of the bottom thickness hydraulic rod. s , then 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 in the guide rail 9 of the working platform, and the laser detector 8 can move in the vertical direction 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 computer records its distance from the reference plane of the working platform 1 as H1 = 600mm. Then 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 ≤50, the slider equipped with the laser detector stops moving immediately and records the vertical moving distance H2 of the laser detector, which is fed back to the industrial computer system and the length L of the cylinder at this time is calculated as:

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

[0132] The industrial computer is preset to detect the wall thickness of the cylinder after drawing at three positions: H30, H85, and H300. The electromagnetic ultrasonic thickness gauge 6 is mounted on the working platform guide rail 7, and the electromagnetic ultrasonic thickness gauge can move in the vertical direction along the guide rail. At the same time, the slide rail carrying the electromagnetic ultrasonic detector moves from the initial edge position S5=143mm (the distance from the midpoint of the slide rail to the center of the cylinder) to the direction of the cylinder axis by χ=4.95mm. When the laser detector 6 completes the detection of the length parameters of the cylinder after drawing, the industrial computer controls the electromagnetic ultrasonic thickness gauge 6 to the relative measurement positions S1, S2, and S3 in the detection device where the cylinder is located according to the preset program:

[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] When the electromagnetic ultrasonic detector 6 moves to the predetermined position, the electromagnetic ultrasonic detector 6 starts to detect the wall thickness D of the cylinder at the positions S1, S2, and S3. n1 , D n2 , D n3 :

[0137]

[0138] After the cylinder has completed the wall thickness, body length and bottom thickness parameter detection, the industrial computer controls the laser detector to move to the preset initial position H1. The bottom thickness hydraulic rod moves vertically back to the initial position H ds And rotate 90°. Then the material return device 10 starts, and after the ejection of the cylinder is completed, the mechanical arm clamps the cylinder, and the three sets of wall thickness hydraulic rods begin to return to the initial position. The industrial computer compares the wall thickness, body length and bottom thickness parameters detected with the requirements for the size of the cylinder after forming in the process forming specification, and places the cylinder that meets the forming specification on the subsequent transmission equipment, while the cylinder that does not meet the forming specification is placed in the discard area.

[0139] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

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

2. The ultra-high temperature cylinder automatic detection device according to claim 1, characterized in that: The upper surface of the working platform (1) and the bottom of the cylinder sleeve (2) and the cylinder water cooling sleeve (3) are provided with coaxial and same-diameter circular holes, in which a material ejection rod (10) is arranged. The material ejection rod (10) is used to eject the formed cylinder after the inspection is completed.

3. A method for using an ultra-high temperature cylinder automatic detection device, characterized in that: The specific steps include: Step 1: Place the ultra-high temperature cylinder after drawing and stretching in the cylinder water cooling sleeve (3), and the industrial computer controls three sets of wall thickness hydraulic rods (4) to move toward the axis of the cylinder until they contact the surface of the cylinder, record the horizontal movement distance of the wall thickness hydraulic rods (4), and calculate the outer diameter φ of the cylinder after forming; Step 2: The industrial computer controls the bottom thickness hydraulic rod (5) to move along the axis until the ceramic head at the top contacts the bottom of the cylinder. The bottom thickness hydraulic rod (5) stops moving and the industrial computer records the moving distance x of the bottom thickness hydraulic rod. s , 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 computer controls the electromagnetic ultrasonic thickness gauge (6) to move to the relative measurement position in the cylinder water cooling sleeve (3) where the cylinder is located to detect the wall thickness of the cylinder; Step 5: After completing the detection of the barrel body length, bottom thickness and wall thickness parameters, the industrial computer compares the barrel product forming specifications formulated in the process flow to determine whether the barrel bottom thickness, body length, wall thickness and other parameters after stretch forming meet the forming size requirements.

4. The ultra-high temperature cylinder automatic detection device according to claim 1, characterized in that: The step 1 specifically includes: Step 11: When the cylinder is stretched, the industrial computer controls the hydraulic data received after the stretching is completed, controls the transmission robot to clamp the ultra-high temperature cylinder after the stretching, and moves it to the detection device; Step 12: When the transfer robot grips the stretched ultra-high temperature cylinder and moves to above the central axis of the sleeve, the distance between the bottom edge of the ultra-high temperature cylinder and the top edge of the sleeve is η, the hydraulic device of the mechanical gripper is released, and the stretched ultra-high temperature cylinder is placed in the cylinder water-cooling sleeve (3); Step 13: The industrial computer controls the three sets of wall thickness hydraulic rods (4) to move toward the axis of the cylinder until they touch the surface of the cylinder. 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, and calculate the outer diameter φ of the cylinder after forming: D1=x1-x4 D2=x2-x5 D3=x3-x6 In the above formula, D1, D2 and D3 are the outer diameters of the cylinder after extension detected by the three groups of hydraulic rods.

5. The ultra-high temperature cylinder automatic detection device according to claim 1, characterized in that: The step 2 specifically includes: Step 21: After the industrial computer completes the collection 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 ; Step 22: The industrial computer controls the bottom rotary 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 ultra-high temperature cylinder after drawing; Step 23: The bottom thickness hydraulic rod (5) moves along the axial direction until the top ceramic head contacts the bottom of the cylinder, and the bottom thickness hydraulic rod (5) stops moving. The industrial computer records the moving distance x of the bottom thickness hydraulic rod. s , then the bottom thickness T of the drawing cylinder is: T=H ds -x s -S w -S b In the above formula, S w S is the bottom thickness of the water-cooled mold sleeve in the working platform; b It is the bottom thickness of the annular sleeve in the working platform.

6. The ultra-high temperature cylinder automatic detection device according to claim 1, characterized in that: The 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 industrial computer records its distance from the work platform reference plane (1) 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 L e When ≤γ, the laser detector stops moving and records the vertical moving distance H2 of the laser detector (8), which is fed back to the industrial computer system and the cylinder length L at this time is calculated as: L=H1-H2-S w -S b Among them, γ is designed according to the outer diameter of the forming cylinder.

7. The ultra-high temperature cylinder automatic detection device according to claim 1, characterized in that: The step 4 specifically includes: Step 41: After the laser detector completes the detection of the length parameters of the cylinder after drawing, the industrial 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: S1=S j1 +S w +S b S2=S j2 +S w +S b S3=S j3 +S w +S b In the above, S j1 , S j2 , S j3 They are the areas where the wall thickness of the ultra-high temperature cylinder needs to be tested after the drawing is completed; Step 42: When the electromagnetic ultrasonic detector (6) moves to the predetermined position, the electromagnetic ultrasonic detector (6) starts to detect the wall thickness D of the cylinder at the positions S1, S2 and S3. n1 , D n2 , D n3 : In the above formula, T n1 , T n2 and T n3 They are respectively the cylinder D after drawing n1 , D n2 , D n3 The time difference between the two echo signals at the position; C is the propagation speed of electromagnetic ultrasound in the workpiece.

8. The ultra-high temperature cylinder automatic detection device according to claim 1, characterized in that: The step 5 specifically includes: Step 51: After the cylinder body length, bottom thickness and wall thickness parameters are detected, the industrial computer controls the laser detector to move to a preset initial position; Step 52: After the bottom thickness hydraulic rod rotates 90° and returns to the initial position, the ejector rod (10) starts to complete the ejection of the cylinder, and then the mechanical arm clamps the cylinder, and the three sets of wall thickness hydraulic rods begin to return to the initial position; Step 53: The industrial computer compares the barrel product forming specifications formulated in the process flow to determine whether the barrel bottom thickness, body length, wall thickness and other parameters after stretch forming meet the forming size requirements, and places the products that meet the forming size specifications on the subsequent transmission device, while the products that do not meet the forming size specifications are placed in the unqualified area.

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