Device and method for measuring perpendicularity of inner tube of quartz double tube

Abstract

The invention discloses a device and a method for measuring the perpendicularity of an inner tube of a quartz double tube, and aims to overcome the defect that the perpendicularity of the inner tube of the quartz double tube is inconvenient to measure. The device comprises a clamping seat and a detection rod, a plurality of clamping blocks arranged at intervals in the circumferential direction are installed on the clamping seat, and the clamping blocks clamp a flange of the quartz double tube; the detection rod is parallel to the axis of the flange, a plurality of detection meters are installed on the detection rod at intervals, the detection rod extends into the inner tube of the quartz double tube, and meter heads of the detection meters touch the inner wall of the inner tube for detection. After the outer tube of the quartz double tube is subjected to fire processing welding, the perpendicularity of the inner tube of the quartz double tube can be directly and accurately measured, the operation is convenient, and the detection is accurate and reliable.

Description

Technical Field

[0001] This invention relates to quartz tube testing technology, and more specifically, to a device and method for measuring the verticality of the inner tube of a quartz double tube. Background Technology

[0002] Semiconductor-grade quartz double tubes are products with two layers of quartz tubes sharing a single flange. After the outer tube is welded, the flange deforms, requiring re-machining of the flange surface. This causes a synchronous change in the perpendicularity of the inner tube, necessitating re-inspection. Existing testing equipment and tools cannot reach inside the inner tube, thus preventing re-measurement of its perpendicularity. Poor perpendicularity of the inner tube leads to uneven gaps between the quartz boat (using the flange surface as the installation reference) and the inner tube, causing installation difficulties and even frictional interference, affecting the normal operation of the equipment. Chinese patent application number 201521017746X discloses an L-shaped thin tube perpendicularity testing fixture. This fixture places and fixes the longer L-shaped quartz tube in a V-groove, while allowing the shorter tube to hang freely, ensuring the accuracy and reliability of the test. However, this fixture can only detect the perpendicularity of the outer wall of the quartz tube and cannot reach inside to detect the perpendicularity of the inner wall. Summary of the Invention

[0003] To overcome the above shortcomings, the present invention provides a device and method for measuring the verticality of the inner tube of a quartz double tube. After the outer tube of the quartz double tube has been heat-processed and welded, the verticality of the inner tube of the quartz double tube can be directly and accurately measured. The operation is convenient and the detection is accurate and reliable.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a quartz double tube inner tube verticality measuring device, including a clamping base and a detection rod, wherein a plurality of clamping blocks arranged circumferentially spaced are installed on the clamping base, and the clamping blocks clamp the flange of the quartz double tube; the detection rod is parallel to the flange axis, and a plurality of detection gauges are installed on the detection rod at intervals, the detection rod extends into the inner tube of the quartz double tube, and the gauge head touches the inner wall of the inner tube for detection.

[0005] During the verticality measurement of the inner tube of a quartz double-tube, the flange of the inner tube is connected to the clamping seat. The clamping blocks on the clamping seat tighten the flange to position the inner tube, ensuring that the measuring rod is parallel to the flange axis. Then, the measuring rod is inserted into the inner tube, and the dial indicator touches the inner wall of the tube to perform the measurement. The dial indicator reading is recorded, and the verticality is calculated. After the outer tube of the quartz double-tube has been heat-processed and welded, the verticality of the inner tube can be directly and accurately measured. The operation is convenient, and the measurement is precise and reliable.

[0006] Preferably, the detection rod is vertically movable and mounted on the clamping base.

[0007] The testing rod can move vertically, ensuring that the gauge head can touch the inner wall of the inner tube, thus adapting to the verticality testing of inner tubes of different sizes and specifications, and has good versatility.

[0008] Preferably, the clamping base is provided with a lifting and movable connecting seat, and the detection rod is installed on the connecting seat for lateral movement.

[0009] The detection rod is mounted laterally on the connecting seat for easy insertion into the inner tube. The connecting seat moves up and down, thereby causing the detection rod to move up and down as well.

[0010] Preferably, a drive screw is rotatably connected to the clamping base, and the drive screw is threadedly connected to the connecting base; the connecting base is provided with a clamping groove, and guide posts are provided on both sides of the clamping groove; the detection rod is provided with a guide groove, and the guide posts and guide grooves are movably inserted and connected.

[0011] The drive screw rotates, thereby causing the connecting seat to move up and down. The detection rod is installed in the clamping groove, and the guide post is movably inserted into the guide groove, ensuring a smooth and reliable process as the detection rod extends into the inner tube.

[0012] Preferably, a reference surface is provided on the clamping base, the flange end face is in contact with the reference surface, and the detection rod is perpendicular to the reference surface.

[0013] A reference surface is set on the clamping base, which contacts the flange end face. The flange end face is machined and serves as a reference surface for testing to ensure testing accuracy.

[0014] Preferably, the clamping seat is provided with a corresponding bracket, the clamping seat is rotatably mounted on the bracket, and a locking rod is installed between the clamping seat and the bracket to lock and position the clamping seat.

[0015] The clamping base can rotate to adjust the angle, ensuring testing accuracy. When the quartz double tube is tapered, the flange end face is tilted after the quartz double tube is loaded and supported. At this time, by rotating the clamping base to make the reference surface on the clamping base basically parallel to the flange end face, the flange end face can be easily aligned and positioned with the reference surface, and then clamped and positioned by the clamping head. The detection rod rotates with the clamping base to ensure that the detection rod is always perpendicular to the reference surface, ensuring testing accuracy.

[0016] Preferably, a support frame is provided adjacent to the clamping seat, a support is provided on the support frame, and a support groove is provided on the support, which supports the quartz double tube.

[0017] The support frame supports and positions the quartz double tube, ensuring reliable clamping and positioning of the flange and the mounting base.

[0018] Preferably, the support includes a fixed cylinder, a buffer column, and a support block. The buffer column and the fixed cylinder are movably fitted together. A buffer spring is installed between the buffer column and the fixed cylinder. The support block is fastened to the upper end of the buffer column, and a support groove is provided on the support block.

[0019] The buffer spring of the support provides buffer force to the buffer column, so that the quartz double tube can be raised and lowered to adjust its position after being supported by the support block, which facilitates the precise clamping and positioning of the flange and the clamping seat.

[0020] Preferably, a connecting post is provided on the clamping block, the connecting post is movably inserted into the clamping seat, the connecting post is rotatably set, and a fastening screw is connected to the clamping block and the fastening screw is connected to the clamping seat.

[0021] After the flange end face of the quartz double tube is aligned with the reference surface on the clamping seat, rotate the connecting column so that the clamping block can press onto the flange, and then tighten the fastening screws to make the clamping block press against the flange to achieve clamping and positioning of the quartz double tube.

[0022] A method for measuring the verticality of the inner tube of a quartz double tube, using a quartz double tube inner tube verticality measuring device, includes the following steps: S1, leveling the measuring rod; S2, installing a measuring gauge on the measuring rod and installing the flange of the quartz double tube onto the clamping seat, with the flange axis parallel to the measuring rod; S3, inserting the measuring rod into the inner tube, with the measuring gauge tip touching the inner wall of the inner tube for testing, recording the measuring gauge value and calculating the verticality.

[0023] The test gauge can extend into the inner tube of the quartz double tube, allowing the gauge head to touch the inner wall of the tube for testing. The testing operation is convenient and reliable. The length of the test rod extending into the inner tube can be adjusted according to the length of the quartz double tube, making it highly adaptable.

[0024] Compared with the prior art, the beneficial effects of the present invention are: (1) After the outer tube of the quartz double tube is completed by fire processing and welding, it is clamped on the clamping seat and the detection rod is inserted into the inner tube. The verticality of the inner tube of the quartz double tube can be directly and accurately measured. The operation is convenient and the detection is accurate and reliable; (2) The detection rod can move vertically to ensure that the head of the detection gauge can touch the inner wall of the inner tube, so as to adapt to the verticality detection of inner tubes of different sizes and specifications, and has good versatility; (3) The buffer spring of the support provides buffer force to the buffer column, so that the quartz double tube can be raised and lowered to adjust its position after being supported by the support block, which facilitates the accurate clamping and positioning of the flange and the clamping seat; (4) The clamping seat can rotate to adjust the angle. When the quartz double tube is a tapered tube, after the quartz double tube is loaded and supported, the flange end face is in an inclined state. At this time, by rotating the clamping seat to make the reference surface on the clamping seat basically parallel to the flange end face, the flange end face can be easily fitted and positioned with the reference surface, and clamped and positioned by the clamping head. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the working state of the present invention.

[0026] Figure 2 This is a structural diagram of the present invention.

[0027] Figure 3 This is a cross-sectional view of the present invention.

[0028] Figure 4 This is a cross-sectional view of the support position of the present invention.

[0029] Figure 5 This is a partial cross-sectional view of Embodiment 2 of the present invention.

[0030] Figure 6 This is a partial cross-sectional view of Embodiment 3 of the present invention.

[0031] Figure 7 This is a partial side view of Embodiment 4 of the present invention.

[0032] In the diagram: 1. Clamping seat, 2. Detection rod, 3. Bracket, 4. Locking rod, 5. Frame, 6. U-shaped plate, 7. Clamping plate, 8. Connecting plate, 9. Fixing plate, 10. Bearing seat, 11. Rotary column, 12. Long groove, 13. Upper locking plate, 14. Lower locking plate, 15. Clamping block, 16. Quartz double tube, 17. Flange, 18. Inspection gauge, 19. Mounting seat, 20. Connecting seat, 21. Drive screw, 22. Clamping plate, 23. Turntable. 24. Handle, 25. Guide post, 26. Guide groove, 27. Clamping ring, 28. Limiting block, 29. Connecting post, 30. Fastening screw, 31. Gear, 32. Rack, 33. Self-aligning ring, 34. Push rod, 35. Connecting rod, 36. Extension rod, 37. Push groove, 38. Support frame, 39. Support, 40. Support groove, 41. Fixing cylinder, 42. Buffer post, 43. Support block, 44. Buffer spring, 45. Positioning post, 46. Positioning sleeve. Detailed Implementation

[0033] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Example 1: A device for measuring the verticality of the inner tube of a quartz double tube (see...) Figure 1 , Figure 2 , Figure 3 , Figure 4The device includes a clamping base 1 and a detection rod 2. A bracket 3 is correspondingly provided on the clamping base 1. The clamping base 1 is rotatably mounted on the bracket 3. A locking rod 4 is installed between the clamping base 1 and the bracket 3 to lock and position the clamping base 1. The bracket 3 includes a frame body 5 and a U-shaped plate 6. Rollers are installed at the bottom of the frame body 5. The U-shaped plate 6 is fastened to the upper end of the frame body 5. The clamping base 1 includes a clamping plate 7 and connecting plates 8 fixedly connected to both sides of the clamping plate 7. A fixing plate 9 is connected between the two connecting plates 8. A bearing seat 10 is installed on the connecting plate 8, and a bearing is installed on the bearing seat 10. A rotating column 11 is provided on the side wall of the U-shaped plate 6. The rotating column 11 is adapted to the inner ring of the bearing, so that the connecting plate 8 can rotate. The locking rod 4 is connected between the fixed plate 9 and the U-shaped plate 6. The fixed plate 9 is provided with a long groove 12. One end of the locking rod is fastened to the U-shaped plate, and the other end moves through the long groove 12. The upper locking plate 13 and the lower locking plate 14 are installed on the locking rod 4. The fixed plate 9 is clamped between the upper locking plate 13 and the lower locking plate 14 to achieve positioning and locking of the entire clamping seat 1.

[0034] A plurality of circumferentially spaced clamping blocks 15 are installed on the clamping base 1, clamping the flange 17 of the quartz double tube 16. The detection rod 2 is parallel to the axis of the flange 17, and a plurality of dial indicators 18 are installed at intervals on the detection rod 2. The dial indicators 18 are dial gauges. The detection rod 2 extends into the inner tube of the quartz double tube 16, and the gauge head of the dial indicator 18 touches the inner wall of the inner tube to perform the test. A mounting base 19 that can move along the length of the detection rod 2 is installed on the detection rod 2, and the dial indicators 18 are fastened to the mounting base 19.

[0035] The detection rod 2 is vertically mounted on the clamping seat 1. A lifting and lowering connecting seat 20 is provided on the clamping seat 1, and the detection rod 2 is horizontally mounted on the connecting seat 20. The detection rod 2 moves up and down together with the connecting seat 20. A drive screw 21 is rotatably connected to the clamping seat 1, and the drive screw 21 is threadedly connected to the connecting seat 20. Both sides of the connecting seat 20 are provided with abutment plates 22, which abut against the clamping seat 1. During the lifting and lowering process of the connecting seat 20, the abutment plates 22 remain in contact with the clamping seat 1 to achieve positioning and ensure smooth lifting and lowering. The upper end of the drive screw 21 is connected to a turntable 23, and a handle 24 is provided on the edge of the turntable 23. The drive screw 21 can only rotate and cannot move up and down itself; it drives the connecting seat 20 to move up and down during rotation. The connecting seat 20 is provided with a clamping groove, and guide posts 25 are provided on both sides of the clamping groove. The detection rod 2 is provided with a guide groove 26, and the guide posts 25 and guide grooves 26 are movably inserted and connected. Two guide grooves 26 are provided on both sides of the detection rod 2, and two guide posts 25 are provided on each guide groove 26 to ensure the stability and accuracy of the lateral movement of the detection rod 2.

[0036] A reference surface is provided on the clamping base 1, the end face of flange 17 is in contact with the reference surface, and the detection rod 2 is perpendicular to the reference surface. A clamping ring 27 is provided on the clamping base 1, and the outer end face of the clamping ring 27 serves as the reference surface. The clamping ring 27 is fastened to the clamping plate 7 of the clamping base 1, and the clamping block 15 is mounted on the clamping plate 7. A connecting post 29 is provided on the clamping block 15, and the connecting post 29 is movably inserted into the clamping base 1. The connecting post 29 is rotatably set, and a fastening screw 30 is connected to the clamping block 15, which is connected to the clamping base 1. After the end face of flange 17 of the quartz double tube 16 is in contact with the reference surface on the clamping base 1, the connecting post 29 is rotated so that the clamping block 15 can press onto the flange 17. Then, the fastening screw 30 is tightened so that the clamping block 15 presses against the flange 17 to achieve clamping and positioning of the quartz double tube 16.

[0037] A support frame 38 is provided adjacent to the clamping base 1. Two supports 39 are mounted on the support frame 38, and support grooves 40 are provided on the supports 39 to support the quartz double tube 16. Several rollers are installed at the bottom of the support frame 38 to facilitate its movement. Each support 39 includes a fixed cylinder 41, a buffer column 42, and a support block 43. The buffer column 42 is movably fitted to the fixed cylinder 41, and a buffer spring 44 is installed between the buffer column 42 and the fixed cylinder 41. The support block 43 is securely connected to the upper end of the buffer column 42, and the support groove 40 is located on the support block 43. The buffer column 42 has axially arranged buffer holes, and a positioning column 45 is installed inside each buffer hole. The buffer spring 44 is placed between the outer wall of the positioning column 45 and the inner wall of the buffer hole, and the upper end of the positioning column 45 is securely connected to the buffer column 42. A positioning sleeve 46 is installed between the outer wall of the buffer column 42 and the inner wall of the fixed cylinder 41.

[0038] A method for measuring the verticality of the inner tube of a quartz double tube, using a quartz double tube inner tube verticality measuring device, includes the following steps: S1, leveling the testing rod 2 to ensure it is perpendicular to the reference plane; S2, installing a gauge 18 on the testing rod 2, ensuring the gauge head is equidistant from the testing rod 2, and installing the flange 17 of the quartz double tube 16 onto the clamping base 1, with the clamping block 15 clamping and positioning the flange 17, the flange 17 axis being parallel to the testing rod 2; S3, inserting the testing rod 2 into the inner tube, the gauge head of the gauge 18 touching the inner wall of the inner tube for measurement, recording the gauge 18 value and calculating the verticality, taking the maximum and minimum difference and multiplying it by 2 to obtain the product's verticality. Loosening the clamping block 15, rotating the quartz double tube 16 90 degrees, and re-clamping and measuring to ensure measurement accuracy.

[0039] The test gauge 18 can extend into the inner tube of the quartz double tube 16, allowing the gauge head to touch the inner wall of the inner tube for testing, making the testing operation convenient and reliable. The length of the test rod 2 extending into the inner tube can be adjusted according to the length of the quartz double tube 16, making it highly adaptable.

[0040] Example 2: A device for measuring the verticality of the inner tube of a quartz double tube (see...) Figure 2 , Figure 5 The device includes a clamping base 1 and a detection rod 2. A bracket 3 is correspondingly provided on the clamping base 1. The clamping base 1 is rotatably mounted on the bracket 3. A locking rod 4 is installed between the clamping base 1 and the bracket 3 to lock and position the clamping base 1. The bracket 3 includes a frame body 5 and a U-shaped plate 6. Rollers are installed at the bottom of the frame body 5. The U-shaped plate 6 is fastened to the upper end of the frame body 5. The clamping base 1 includes a clamping plate 7 and connecting plates 8 fixedly connected to both sides of the clamping plate 7. A fixing plate 9 is connected between the two connecting plates 8. A bearing seat 10 is installed on the connecting plate 8, and a bearing is installed on the bearing seat 10. A rotating column 11 is provided on the side wall of the U-shaped plate 6. The rotating column 11 is adapted to the inner ring of the bearing, so that the connecting plate 8 can rotate. The locking rod 4 is connected between the fixed plate 9 and the U-shaped plate 6. The fixed plate 9 is provided with a long groove 12. One end of the locking rod is fastened to the U-shaped plate, and the other end moves through the long groove 12. The upper locking plate 13 and the lower locking plate 14 are installed on the locking rod 4. The fixed plate 9 is clamped between the upper locking plate 13 and the lower locking plate 14 to achieve positioning and locking of the entire clamping seat 1.

[0041] A plurality of circumferentially spaced clamping blocks 15 are installed on the clamping base 1, clamping the flange 17 of the quartz double tube 16. The detection rod 2 is parallel to the axis of the flange 17, and a plurality of dial indicators 18 are installed at intervals on the detection rod 2. The dial indicators 18 are dial gauges. The detection rod 2 extends into the inner tube of the quartz double tube 16, and the gauge head of the dial indicator 18 touches the inner wall of the inner tube to perform the test. A mounting base 19 that can move along the length of the detection rod 2 is installed on the detection rod 2, and the dial indicators 18 are fastened to the mounting base 19.

[0042] The detection rod 2 is vertically mounted on the clamping seat 1. A lifting and lowering connecting seat 20 is provided on the clamping seat 1, and the detection rod 2 is horizontally mounted on the connecting seat 20. The detection rod 2 moves up and down together with the connecting seat 20. A drive screw 21 is rotatably connected to the clamping seat 1, and the drive screw 21 is threadedly connected to the connecting seat 20. Both sides of the connecting seat 20 are provided with abutment plates 22, which abut against the clamping seat 1. During the lifting and lowering process of the connecting seat 20, the abutment plates 22 remain in contact with the clamping seat 1 to achieve positioning and ensure smooth lifting and lowering. The upper end of the drive screw 21 is connected to a turntable 23, and a handle 24 is provided on the edge of the turntable 23. The drive screw 21 can only rotate and cannot move up and down itself; it drives the connecting seat 20 to move up and down during rotation. The connecting seat 20 is provided with a clamping groove, and guide posts 25 are provided on both sides of the clamping groove. The detection rod 2 is provided with a guide groove 26, and the guide posts 25 and guide grooves 26 are movably inserted and connected. Two guide grooves 26 are provided on both sides of the detection rod 2, and two guide posts 25 are provided on each guide groove 26 to ensure the stability and accuracy of the lateral movement of the detection rod 2.

[0043] A reference surface is provided on the clamping base 1, the end face of the flange 17 is in contact with the reference surface, and the detection rod 2 is perpendicular to the reference surface. A clamping ring 27 is provided on the clamping base 1, and the outer end face of the clamping ring 27 serves as the reference surface. The clamping ring 27 is rotatably set, and the clamping block 15 is connected to the clamping ring 27. An installation groove is provided on the clamping plate 7, and the clamping ring 27 is rotatably installed in the installation groove. A limiting block 28 is connected to the clamping plate 7, and the limiting block 28 presses against the edge of the clamping ring 27 to achieve axial limiting of the clamping ring 27.

[0044] A connecting post 29 is provided on the clamping block 15. The connecting post 29 is movably inserted into the clamping ring 27 of the clamping seat 1. The connecting post 29 is rotatably set. A fastening screw 30 is connected to the clamping block 15 and is connected to the clamping ring 27 on the clamping seat 1. After the end face of the flange 17 of the quartz double tube 16 is in contact with the reference surface on the clamping seat 1, the connecting post 29 is rotated so that the clamping block 15 can press onto the flange 17. Then, the fastening screw 30 is tightened so that the clamping block 15 presses the flange 17 to achieve clamping and positioning of the quartz double tube 16. At the same time, the end of the fastening screw 30 abuts against the clamping plate 7 to position the clamping ring 27.

[0045] After the quartz double tube 16 has completed the test, it needs to be rotated 90 degrees for another test. At this time, loosen the fastening screw 30. There is no need to loosen the clamping block 15 to re-clamp the quartz double tube 16. Rotate the quartz double tube 16 and the clamping ring 27 together to rotate the quartz double tube 16 90 degrees. Then tighten the fastening screw 30 to achieve the positioning of the quartz double tube 16. The operation is convenient.

[0046] A support frame 38 is provided adjacent to the clamping base 1. Two supports 39 are mounted on the support frame 38, and support grooves 40 are provided on the supports 39 to support the quartz double tube 16. Several rollers are installed at the bottom of the support frame 38 to facilitate its movement. Each support 39 includes a fixed cylinder 41, a buffer column 42, and a support block 43. The buffer column 42 is movably fitted to the fixed cylinder 41, and a buffer spring 44 is installed between the buffer column 42 and the fixed cylinder 41. The support block 43 is securely connected to the upper end of the buffer column 42, and the support groove 40 is located on the support block 43. The buffer column 42 has axially arranged buffer holes, and a positioning column 45 is installed inside each buffer hole. The buffer spring 44 is placed between the outer wall of the positioning column 45 and the inner wall of the buffer hole, and the upper end of the positioning column 45 is securely connected to the buffer column 42. A positioning sleeve 46 is installed between the outer wall of the buffer column 42 and the inner wall of the fixed cylinder 41.

[0047] A method for measuring the verticality of the inner tube of a quartz double tube, using a quartz double tube inner tube verticality measuring device, includes the following steps: S1, leveling the testing rod 2 to ensure it is perpendicular to the reference plane; S2, installing a gauge 18 on the testing rod 2, ensuring the gauge head is equidistant from the testing rod 2, and installing the flange 17 of the quartz double tube 16 onto the clamping seat 1, with the clamping block 15 clamping and positioning the flange 17, the flange 17 axis being parallel to the testing rod 2; S3, inserting the testing rod 2 into the inner tube, the gauge head of the gauge 18 touching the inner wall of the inner tube for testing, recording the gauge 18 value and calculating the verticality, taking the maximum and minimum difference and multiplying it by 2 to obtain the product's verticality. Loosening the fastening screw 30, rotating the quartz double tube 16 90 degrees, tightening the fastening screw 30, and measuring again to ensure accuracy.

[0048] The test gauge 18 can extend into the inner tube of the quartz double tube 16, allowing the gauge head to touch the inner wall of the inner tube for testing, making the testing operation convenient and reliable. The length of the test rod 2 extending into the inner tube can be adjusted according to the length of the quartz double tube 16, making it highly adaptable.

[0049] Example 3: A device for measuring the verticality of the inner tube of a quartz double tube (see...) Figure 6 The device includes a clamping base 1 and a detection rod 2. A bracket 3 is correspondingly provided on the clamping base 1. The clamping base 1 is rotatably mounted on the bracket 3. A locking rod 4 is installed between the clamping base 1 and the bracket 3 to lock and position the clamping base 1. The bracket 3 includes a frame body 5 and a U-shaped plate 6. Rollers are installed at the bottom of the frame body 5. The U-shaped plate 6 is fastened to the upper end of the frame body 5. The clamping base 1 includes a clamping plate 7 and connecting plates 8 fixedly connected to both sides of the clamping plate 7. A fixing plate 9 is connected between the two connecting plates 8. A bearing seat 10 is installed on the connecting plate 8, and a bearing is installed on the bearing seat 10. A rotating column 11 is provided on the side wall of the U-shaped plate 6. The rotating column 11 is adapted to the inner ring of the bearing, so that the connecting plate 8 can rotate. The locking rod 4 is connected between the fixed plate 9 and the U-shaped plate 6. The fixed plate 9 is provided with a long groove 12. One end of the locking rod is fastened to the U-shaped plate, and the other end moves through the long groove 12. The upper locking plate 13 and the lower locking plate 14 are installed on the locking rod 4. The fixed plate 9 is clamped between the upper locking plate 13 and the lower locking plate 14 to achieve positioning and locking of the entire clamping seat 1.

[0050] A plurality of circumferentially spaced clamping blocks 15 are installed on the clamping base 1, clamping the flange 17 of the quartz double tube 16. The detection rod 2 is parallel to the axis of the flange 17, and a plurality of dial indicators 18 are installed at intervals on the detection rod 2. The dial indicators 18 are dial gauges. The detection rod 2 extends into the inner tube of the quartz double tube 16, and the gauge head of the dial indicator 18 touches the inner wall of the inner tube to perform the test. A mounting base 19 that can move along the length of the detection rod 2 is installed on the detection rod 2, and the dial indicators 18 are fastened to the mounting base 19.

[0051] The detection rod 2 is vertically mounted on the clamping seat 1. A lifting and lowering connecting seat 20 is provided on the clamping seat 1, and the detection rod 2 is horizontally mounted on the connecting seat 20. The detection rod 2 moves up and down together with the connecting seat 20. A drive screw 21 is rotatably connected to the clamping seat 1, and the drive screw 21 is threadedly connected to the connecting seat 20. Both sides of the connecting seat 20 are provided with abutment plates 22, which abut against the clamping seat 1. During the lifting and lowering process of the connecting seat 20, the abutment plates 22 remain in contact with the clamping seat 1 to achieve positioning and ensure smooth lifting and lowering. The upper end of the drive screw 21 is connected to a turntable 23, and a handle 24 is provided on the edge of the turntable 23. The drive screw 21 can only rotate and cannot move up and down itself; it drives the connecting seat 20 to move up and down during rotation. The connecting seat 20 is provided with a clamping groove, and guide posts 25 are provided on both sides of the clamping groove. The detection rod 2 is provided with a guide groove 26, and the guide posts 25 and guide grooves 26 are movably inserted and connected. Two guide grooves 26 are provided on both sides of the detection rod 2, and two guide posts 25 are provided on each guide groove 26 to ensure the stability and accuracy of the lateral movement of the detection rod 2.

[0052] A reference surface is provided on the clamping base 1, the end face of the flange 17 is in contact with the reference surface, and the detection rod 2 is perpendicular to the reference surface. A clamping ring 27 is provided on the clamping base 1, and the outer end face of the clamping ring 27 serves as the reference surface. The clamping ring 27 is rotatably set, and the clamping block 15 is connected to the clamping ring 27. An installation groove is provided on the clamping plate 7, and the clamping ring 27 is rotatably installed in the installation groove. A limiting block 28 is connected to the clamping plate 7, and the limiting block 28 presses against the edge of the clamping ring 27 to achieve axial limiting of the clamping ring 27.

[0053] A connecting post 29 is provided on the clamping block 15. The connecting post 29 is movably inserted into the clamping ring 27 of the clamping seat 1. The connecting post 29 is rotatably set. A fastening screw 30 is connected to the clamping block 15 and is connected to the clamping ring 27 on the clamping seat 1. After the end face of the flange 17 of the quartz double tube 16 is in contact with the reference surface on the clamping seat 1, the connecting post 29 is rotated so that the clamping block 15 can press onto the flange 17. Then, the fastening screw 30 is tightened so that the clamping block 15 presses the flange 17 to achieve clamping and positioning of the quartz double tube 16. At the same time, the end of the fastening screw 30 abuts against the clamping plate 7 to position the clamping ring 27.

[0054] After the quartz double tube 16 has completed the test, it needs to be rotated 90 degrees for another test. At this time, loosen the fastening screw 30. There is no need to loosen the clamping block 15 to re-clamp the quartz double tube 16. Rotate the quartz double tube 16 and the clamping ring 27 together to rotate the quartz double tube 16 90 degrees. Then tighten the fastening screw 30 to achieve the positioning of the quartz double tube 16. The operation is convenient.

[0055] A drive motor is mounted on the connecting base 20. The output shaft of the drive motor is connected to a gear 31. A rack 32 is installed on the detection rod 2, and the gear 31 and rack 32 mesh to transmit power. When the drive motor is working, it drives the detection rod 2 to move laterally, and the movement is smooth and reliable.

[0056] A support frame 38 is provided adjacent to the clamping base 1. Two supports 39 are mounted on the support frame 38, and support grooves 40 are provided on the supports 39 to support the quartz double tube 16. Several rollers are installed at the bottom of the support frame 38 to facilitate its movement. Each support 39 includes a fixed cylinder 41, a buffer column 42, and a support block 43. The buffer column 42 is movably fitted to the fixed cylinder 41, and a buffer spring 44 is installed between the buffer column 42 and the fixed cylinder 41. The support block 43 is securely connected to the upper end of the buffer column 42, and the support groove 40 is located on the support block 43. The buffer column 42 has axially arranged buffer holes, and a positioning column 45 is installed inside each buffer hole. The buffer spring 44 is placed between the outer wall of the positioning column 45 and the inner wall of the buffer hole, and the upper end of the positioning column 45 is securely connected to the buffer column 42. A positioning sleeve 46 is installed between the outer wall of the buffer column 42 and the inner wall of the fixed cylinder 41.

[0057] A method for measuring the verticality of the inner tube of a quartz double tube, using a quartz double tube inner tube verticality measuring device, includes the following steps: S1, leveling the detection rod 2 to ensure it is perpendicular to the reference plane; S2, installing a gauge 18 on the detection rod 2, ensuring the gauge head is equidistant from the detection rod 2, and installing the flange 17 of the quartz double tube 16 onto the clamping base 1, with the clamping block 15 clamping and positioning the flange 17, the flange 17 axis being parallel to the detection rod 2; S3, driving the motor to move the detection rod 2 laterally, causing it to extend into the inner tube, the gauge head of the gauge 18 touching the inner wall of the inner tube for measurement, recording the gauge 18 value and calculating the verticality, taking the maximum and minimum difference and multiplying it by 2 to obtain the product's verticality. Loosening the fastening screw 30, rotating the quartz double tube 16 90 degrees, tightening the fastening screw 30, and measuring again to ensure accuracy.

[0058] The test gauge 18 can extend into the inner tube of the quartz double tube 16, allowing the gauge head to touch the inner wall of the inner tube for testing, making the testing operation convenient and reliable. The length of the test rod 2 extending into the inner tube can be adjusted according to the length of the quartz double tube 16, making it highly adaptable.

[0059] Example 4: A device for measuring the verticality of the inner tube of a quartz double tube (see...) Figure 7Its structure is similar to any one of embodiments 1 to 3, the main difference being that in this embodiment, a self-aligning mechanism is installed on the clamping base 1. The self-aligning mechanism includes a self-aligning ring 33 and several push rods 34 evenly distributed around the circumference. The push rods 34 are radially movable, and a connecting rod 35 is hinged between the self-aligning ring 33 and the push rods 34. The self-aligning ring 33 rotates, thereby pushing the push rods 34 to move radially and abut against the inner wall of the flange 17 to perform a self-aligning operation on the flange 17. In this embodiment, three push rods 34 are provided, and an extension rod 36 is provided on the inner wall of the self-aligning ring 33. The connecting rod 35 is hinged to the extension rod 36. A pushing groove 37 corresponding to the push rod 34 is provided on the clamping base 1, and the push rod 34 is slidably connected to the pushing groove 37. A toggle rod is provided on the self-aligning ring 33, and an arc-shaped clearance groove is provided on the clamping base 1. The toggle rod passes through the clearance groove to the back of the clamping base 1, and pushes the self-aligning ring 33 to rotate through the toggle rod. The inner edge of the clamping ring 27 presses against the outer edge of the self-aligning ring 33 to achieve axial positioning of the self-aligning ring 33. During the clamping process of the quartz double tube 16 to the clamping seat 1, the self-aligning mechanism performs the self-aligning operation to ensure the accuracy of the clamping position of the quartz double tube 16, which is beneficial to improving the detection accuracy. Other structures are the same as any one of embodiments 1 to 3.

[0060] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications may be made without departing from the technical solutions described in the claims.

Claims

1. A device for measuring the verticality of the inner tube of a quartz double tube, characterized in that, It includes a clamping base and a testing rod. The clamping base is equipped with several clamping blocks arranged circumferentially, which clamp the flange of the quartz double tube. The testing rod is parallel to the flange axis, and several test gauges are installed on the testing rod at intervals. The testing rod extends into the inner tube of the quartz double tube, and the gauge head touches the inner wall of the inner tube to perform the test.

2. The quartz double tube inner tube verticality measuring device according to claim 1, characterized in that, The detection rod is vertically moved and mounted on the clamping base.

3. The quartz double tube inner tube verticality measuring device according to claim 2, characterized in that, The clamping base is equipped with a lifting and moving connecting seat, and the detection rod is installed on the connecting seat for lateral movement.

4. The quartz double tube inner tube verticality measuring device according to claim 3, characterized in that, A drive screw is rotatably connected to the clamping base, and the drive screw is threadedly connected to the connecting base; the connecting base is provided with a clamping groove, and guide posts are provided on both sides of the clamping groove; the detection rod is provided with a guide groove, and the guide posts and guide grooves are movably inserted and connected.

5. The quartz double tube inner tube verticality measuring device according to claim 1, characterized in that, A reference surface is set on the clamping base, the flange end face is in contact with the reference surface, and the detection rod is perpendicular to the reference surface.

6. The quartz double tube inner tube verticality measuring device according to claim 1, characterized in that, The clamping seat is equipped with a corresponding bracket. The clamping seat is rotatably mounted on the bracket. A locking rod is installed between the clamping seat and the bracket. The locking rod locks and positions the clamping seat.

7. The quartz double tube inner tube verticality measuring device according to claim 1, characterized in that, A support frame is provided adjacent to the clamping base, a support is provided on the support frame, and a support groove is provided on the support, which supports the quartz double tube.

8. A quartz double tube inner tube verticality measuring device according to claim 7, characterized in that the support... It includes a fixed cylinder, a buffer column, and a support block. The buffer column and the fixed cylinder are movably fitted together. A buffer spring is installed between the buffer column and the fixed cylinder. The support block is fastened to the upper end of the buffer column, and a support groove is set on the support block.

9. A quartz double tube inner tube verticality measuring device according to any one of claims 1 to 8, characterized in that, A connecting post is provided on the clamping block. The connecting post is movably inserted into the clamping seat and can be rotated. Fastening screws are connected to the clamping block and are connected to the clamping seat.

10. A method for measuring the verticality of the inner tube of a quartz double tube, characterized in that, The verticality measuring device for the inner tube of a quartz double tube according to any one of claims 1 to 9 is used for testing, comprising the following steps: S1, leveling the testing rod; S2, installing a measuring gauge on the testing rod and installing the flange of the quartz double tube onto the clamping seat, with the flange axis parallel to the testing rod; S3, inserting the testing rod into the inner tube, with the gauge tip touching the inner wall of the inner tube for testing, recording the gauge value and calculating the verticality.

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