Quartz product diameter measurer and measuring method

Abstract

The invention relates to the technical field of quartz product measurement, and particularly provides a quartz product diameter measurer and a quartz product diameter measuring method, and the quartz product diameter measurer comprises a clamping mechanism, a moving table, a supporting guide mechanism and a laser outer diameter measuring mechanism. According to the invention, the clamping mechanism, the laser outer diameter measuring mechanism and the supporting and guiding mechanism cooperate with each other, so that the laser outer diameter measuring mechanism measures the diameter of the quartz rod in the circumferential direction in the process that the clamping mechanism drives the quartz rod to rotate axially; meanwhile, the mobile station drives the laser outer diameter measuring mechanism to move in the axial direction of the quartz rod through the supporting and guiding mechanism to measure the diameter, so that the diameter measurement of the quartz rod in the axial direction and the circumferential measurement of different axial positions are realized, the comprehensiveness of the diameter measurement of the quartz rod is improved, and the measurement result has representativeness; and the precision of diameter measurement of the quartz rod is improved.

Description

Technical Field

[0001] The invention relates to the technical field of quartz product measurement, and specifically proposes a quartz product diameter measuring device and a measuring method. Background Art

[0002] Quartz rods are the most common quartz products and are often used in the manufacture of precision instruments and equipment, such as as support structures or electrode materials. The diameter accuracy of quartz rods has an important impact on the use effect.

[0003] At present, the diameter of quartz rods is generally measured by laser diameter gauge. Laser diameter gauge is based on non-contact principle. It emits a very small and concentrated laser beam to the surface of the object to be measured. The laser beam is reflected and returns to the receiver of the laser diameter gauge to calculate the diameter of the quartz rod. Laser diameter gauge has extremely high accuracy and stability.

[0004] However, the current method of measuring the diameter of a quartz rod using a laser diameter gauge has the following defects: 1. Currently, only multiple measurements are performed in the axial direction of the quartz rod. However, the diameter of the quartz rod may change in the circumferential direction, so the measurement accuracy reflected by the axis measurement alone is low; 2. Currently, only a single measurement or measurement in the same straight line direction is performed, the measurement position is not representative, and the method of taking the average value of multiple point measurements is not adopted, so the measurement accuracy is not high. Summary of the invention

[0005] In view of the above problems, the embodiments of the present application provide a quartz product diameter measuring device and a measuring method to solve the technical problems in the related art.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solution: a quartz product diameter measuring device, comprising: a base, a fixed platform is installed on the top of the base, a fixing mechanism for fixing one end of the quartz rod is rotatably connected to the fixed platform, and a rotating driving mechanism is also installed on the fixed platform to drive the fixing mechanism to drive the quartz rod to rotate.

[0007] The base is also provided with a movable platform which slides along its length direction, the top of the movable platform is provided with an annular cavity seat, the annular cavity seat is provided with a supporting and guiding mechanism, and a laser outer diameter measuring mechanism is provided on the side of the annular cavity seat close to the fixed platform.

[0008] The supporting and guiding mechanism includes a plurality of push rods connected to the inner ring surface of the annular cavity seat, which slide along its radial direction and are evenly arranged along its circumference. Friction-reducing balls are rollingly installed on the inner and outer ends of the push rods. The push rods are connected to the inner wall of the annular cavity seat by push springs. A pressure locking group for locking the push rods is installed on the annular cavity seat.

[0009] The laser outer diameter measuring mechanism includes a fixed disk and two measuring abutment plates arranged symmetrically up and down, and abutment balls are rollingly installed on the opposite ends of the two measuring abutment plates. The fixed disk is connected to the outer side wall of the annular cavity seat through a connecting rod, and a rectangular groove penetrating along its axial direction is opened in the middle of the fixed disk. The two measuring abutment plates are slidably installed on the upper and lower side walls of the rectangular groove through elastic connecting components respectively, and supplementary seats are installed on the side of the two measuring abutment plates close to the annular cavity seat. The opposite surfaces of the two supplementary seats are flush with the side end surfaces of the measuring abutment plates connected thereto, and a laser rangefinder is installed on one of the supplementary seats, and the laser emitting end of the laser rangefinder is flush with the side wall of the supplementary seat connected thereto close to the axis of the annular cavity seat.

[0010] In one possible implementation, the pressing and locking group includes a rotating ring rotatably connected to the inner wall of the annular cavity seat, a gear ring is fixedly installed on the outer ring surface of the rotating ring, and a pressing component is installed on the inner ring surface of the rotating ring to press multiple push rods during its rotation. An arc groove connected to its inner cavity is opened on the top of the annular cavity seat, an ear plate is installed on the top of the annular cavity seat, and a gear meshing with the gear ring is rotatably connected to the ear plate for transmission, a locking component for driving the gear to rotate and implement locking is installed on the top of the annular cavity seat, and an insertion and opening drive component for pushing multiple push rods to move in a direction away from the axis of the annular cavity seat is installed on the annular cavity seat.

[0011] In one possible implementation, the locking assembly includes a protective cover installed on the top of the annular cavity seat, the ear plate and the gear are both located in the protective cover, the gear is connected to a rotating shaft by a spline fit, one end of the rotating shaft slides through the ear plate, and the other end is fixedly installed with a screw, the screw passes through the protective cover and is connected to the protective cover by a threaded fit.

[0012] In a possible implementation, the pressing assembly includes arc-shaped wedge blocks installed on the inner ring surface of the rotating ring and evenly arranged along the circumference thereof, and the arc-shaped wedge blocks correspond to the push rods one by one.

[0013] In one possible implementation, the insertion and opening drive assembly includes a plurality of sliders installed on the inner wall of the annular cavity seat near its inner ring surface and evenly arranged along its circumference, the sliders correspond to the push rods one by one, an inclined rod is hinged between the slider and the side wall of the push rod, a connecting rod is fixedly installed on one end of the slider away from the push rod, and a plurality of connecting rods are slid through the annular cavity seat and a pushing ring is installed together.

[0014] In one possible implementation, the elastic connection component includes a sliding groove that is opened on both sides of a rectangular groove arranged along its width direction and is slidably connected to the end portion corresponding to the measuring support plate. The inner wall of the sliding groove is connected to the measuring support plate through a pressure spring, and a guide rod is installed on the side wall of the middle portion of the measuring support plate away from the interference ball.

[0015] In one possible implementation, a balancing pressure assembly is installed on both sides of the rectangular groove along its width direction, and the balancing pressure assembly includes a balancing resistance rod connected to the inner wall of the rectangular groove and sliding radially along the fixed disk, and a supporting ball is rollingly installed on the end of the balancing resistance rod close to the center of the fixed disk, and a spring groove corresponding to the balancing resistance rod is opened on the fixed disk. After the balancing resistance rod slides into the corresponding spring groove, it is connected to the inner wall of the spring groove through a push spring, and the measuring resistance plate and the balancing resistance rod are connected by a pulling opening assembly.

[0016] In a possible implementation, the pull-to-open assembly includes two ropes installed on the end of a balancing resistance rod connected to a push spring, and the two ropes are respectively inserted into upper and lower sliding grooves and connected to corresponding measuring resistance plates.

[0017] In one possible implementation, the clamping mechanism includes a rotating disk rotatably connected to a fixed platform, a fixing ring is fixedly installed on the side wall of the rotating disk close to the fixed disk, a driving shaft is fixedly installed on the other side of the rotating disk, the inner ring surface of the fixing ring is installed with arc-shaped clamping plates evenly arranged along its circumference, the inner arc surface of the arc-shaped clamping plates is installed with rubber gaskets, and a clamping drive group is installed on the fixing ring.

[0018] The present invention also provides a method for measuring the diameter of a quartz product, comprising the following steps: S1. Surface cleaning: cleaning the surface of a quartz rod to be measured.

[0019] S2. Support and fixation: insert the quartz rod into the support and guide mechanism, the laser outer diameter measuring mechanism and the clamping mechanism, fix one end of the quartz rod through the clamping mechanism, and lock and clamp the other end of the quartz rod through the support and guide mechanism.

[0020] S3. Measure and record: The quartz rod is rotated by the fixing mechanism driven by the rotary drive mechanism, and the laser outer diameter measuring mechanism measures the diameter of the quartz rod in the circumferential direction. At the same time, the movable platform drives the laser outer diameter measuring mechanism to move along the axial direction of the quartz rod through the supporting and guiding mechanism to measure the diameter, thereby realizing the diameter measurement of the quartz rod in the axial direction and the circumferential measurement at different axial positions, and recording multiple measured distances H to ensure the representativeness and accuracy of the data.

[0021] S4. Calculate the average outer diameter: After removing the maximum distance H and the last minimum distance H measured, subtract the two interfering ball diameters from the average distance H to obtain the average value of the diameter D of the quartz rod to ensure the reliability of the measurement results. Then check whether the average value of the measured diameter D of the quartz rod is within the standard range.

[0022] The above one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects: 1. The present invention cooperates with the clamping mechanism, the laser outer diameter measuring mechanism and the supporting and guiding mechanism, so that when the clamping mechanism drives the quartz rod to rotate axially, the laser outer diameter measuring mechanism measures the diameter of the quartz rod in the circumferential direction. At the same time, the movable platform drives the laser outer diameter measuring mechanism to move along the axial direction of the quartz rod through the supporting and guiding mechanism to measure the diameter, thereby realizing the diameter measurement of the quartz rod in the axial direction and the circumferential measurement at different axial positions, improving the comprehensiveness of the quartz rod diameter measurement, making the measurement result representative, and thus improving the accuracy of the quartz rod diameter measurement.

[0023] 2. The present invention supports and fixes the quartz rod by cooperating with a supporting and guiding mechanism and a clamping mechanism. The clamping mechanism fixes one end of the quartz rod, and the supporting and guiding mechanism locks, clamps and supports the other end of the quartz rod, thereby ensuring that the two ends of the quartz rod are fixed at the same height and are concentric, so that the laser outer diameter measuring mechanism can accurately measure the outer diameter of the quartz rod during mobile measurement.

[0024] 3. The present invention drives the laser outer diameter measuring mechanism to move along the axial direction of the quartz rod to measure the diameter through the movable platform and the supporting and guiding mechanism. It not only realizes the near-point support measurement of the quartz rod, but also guides the movement of the laser outer diameter measuring mechanism, so that the laser outer diameter measuring mechanism can stably measure the outer diameter of the quartz rod, and further avoids the tilt of the quartz rod under the action of centrifugal force when rotating, which affects the accuracy of the laser outer diameter measuring mechanism in measuring the quartz rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0026] Figure 1 It is a first three-dimensional structural schematic diagram of the present invention.

[0027] Figure 2 It is a second three-dimensional structural schematic diagram of the present invention.

[0028] Figure 3 It is a three-dimensional structural schematic diagram of the support and guide mechanism of the present invention.

[0029] Figure 4 It is a left sectional view of the present invention.

[0030] Figure 5 It is a main sectional view of the present invention.

[0031] Figure 6 yes Figure 5 Enlarged view of point A in .

[0032] Figure 7 It is a three-dimensional structural schematic diagram of the laser outer diameter measuring mechanism of the present invention.

[0033] Figure 8 It is a cross-sectional view of the laser outer diameter measuring mechanism of the present invention.

[0034] Figure numerals: 1, base; 2, fixed platform; 3, clamping mechanism; 30, rotating disk; 31, fixed ring; 32, arc-shaped clamping plate; 33, rubber gasket; 4, moving platform; 5, annular cavity seat; 6, supporting and guiding mechanism; 60, push rod; 61, push spring; 62, push locking group; 610, rotating ring; 611, pressing assembly; 612, arc-shaped groove; 613, ear plate; 614, gear; 620, protective cover; 621, rotating shaft ; 622, screw; 630, slider; 631, inclined rod; 632, connecting rod; 633, push ring; 7, laser outer diameter measuring mechanism; 70, measuring plate; 71, fixed plate; 72, rectangular groove; 720, balance resistance rod; 721, push spring; 722, rope; 73, supplementary seat; 74, laser rangefinder; 75, elastic connection assembly; 750, resistance spring; 751, guide rod; 76, resistance ball; 8, quartz rod. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] See also Figure 1 and Figure 2 A quartz product diameter measuring device includes: a base 1, a fixed platform 2 is installed on the top of the base 1, a fixing mechanism 3 is rotatably connected to the fixed platform 2 for fixing one end of a quartz rod 8, and a rotating driving mechanism (such as a motor) is also installed on the fixed platform 2 for driving the fixing mechanism 3 to drive the quartz rod 8 to rotate.

[0038] See also Figure 1 and Figure 2The base 1 is also provided with a movable platform 4 which slides along its length direction, and an external electric slider which drives the movable platform 4 to slide along the length direction of the base 1 is provided at the bottom of the movable platform 4, and an annular cavity seat 5 is provided at the top of the movable platform 4, and a supporting and guiding mechanism 6 is provided on the annular cavity seat 5, and a laser outer diameter measuring mechanism 7 is provided on the side of the annular cavity seat 5 close to the fixed platform 2.

[0039] The quartz rod 8 is inserted between the supporting and guiding mechanism 6 and the clamping mechanism 3, and one end of the quartz rod 8 is fixed by the clamping mechanism 3, and the supporting and guiding mechanism 6 locks, clamps and supports the other end of the quartz rod 8, thereby ensuring that the two ends of the quartz rod 8 are fixed at the same height and concentrically, so that the laser outer diameter measuring mechanism 7 can accurately measure the outer diameter of the quartz rod 8.

[0040] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The supporting and guiding mechanism 6 includes a plurality of push rods 60 connected to the inner ring surface of the annular cavity seat 5, sliding along its radial direction and evenly arranged along its circumference. Wear-reducing balls are rollingly installed on the inner and outer ends of the push rods 60. The push rods 60 are connected to the inner wall of the annular cavity seat 5 through a push spring 61. A push locking group 62 is installed on the annular cavity seat 5 to lock the push rods 60.

[0041] Before the quartz rod 8 is inserted, the plurality of push rods 60 are driven to expand and open by the push-locking group 62, and then the quartz rod 8 is passed through the annular cavity seat 5 and inserted into the fixing mechanism 3. At this time, the push-locking group 62 no longer drives the plurality of push rods 60, and the push rods 60 move toward the side wall of the quartz rod 8 under the elastic force of the push spring 61 until the friction-reducing ball at the outer end of the push rod 60 is pressed against the side wall of the quartz rod 8, and then the other end of the quartz rod 8 is centered and fixed by the fixing mechanism 3. At this time, the quartz rod 8 is concentric with the annular cavity seat 5 under the push action of the plurality of push rods 60, and then the position of the push rod 60 is locked by the push-locking group 62 to prevent the quartz rod 8 from tilting under the action of the rotating centrifugal force and pushing the push rod 60 to move, thereby affecting the accuracy of the diameter measurement of the quartz rod 8 by the laser outer diameter measuring mechanism 7.

[0042] The movable platform 4 drives the laser outer diameter measuring mechanism 7 to move axially along the quartz rod 8 to measure the diameter through the supporting and guiding mechanism 6, which not only realizes near-point support measurement of the quartz rod 8, but also guides the movement of the laser outer diameter measuring mechanism 7, further avoiding the quartz rod 8 from tilting under the action of centrifugal force when rotating, thereby affecting the accuracy of the laser outer diameter measuring mechanism 7 in measuring the quartz rod 8.

[0043] See also Figure 1 , Figure 2 , Figure 7 and Figure 8 The laser outer diameter measuring mechanism 7 includes a fixed disk 71 and two measuring plates 70 symmetrically arranged in the upper and lower parts. The opposite ends of the two measuring plates 70 are rollingly installed with abutment balls 76. The fixed disk 71 is connected to the outer wall of the annular cavity seat 5 through a connecting rod. A rectangular groove 72 is provided in the middle of the fixed disk 71 and penetrates along its axial direction. The two measuring plates 70 are slidably installed on the upper and lower side walls of the rectangular groove 72 through elastic connecting components 75 respectively. Supplementary seats 73 are installed on the side of the two measuring plates 70 close to the annular cavity seat 5. The opposite surfaces of the two supplementary seats 73 are flush with the side end surfaces of the measuring plates 70 connected thereto. A laser rangefinder 74 is installed on one of the supplementary seats 73. The laser emitting end of the laser rangefinder 74 is flush with the side wall of the supplementary seat 73 connected thereto close to the axis of the annular cavity seat 5 (the laser measuring head of the laser rangefinder 74 is located on the supplementary seat 73 and is connected to an external distance measuring display).

[0044] When the quartz rod 8 is inserted, the two elastic connection components 75 drive the two measuring plates 70 to move, so that the distance between the two measuring plates 70 is expanded to facilitate the insertion of the quartz rod 8 therebetween. After the quartz rod 8 is inserted, the two measuring plates 70 move toward the quartz rod 8 under the elastic force of the two elastic connection components 75 and contact the quartz rod 8 through the contact balls 76. After the support and guide mechanism 6 and the clamping mechanism 3 fix the quartz rod 8, the contact balls 76 connected to the opposite ends of the upper and lower measuring plates 70 respectively contact the side walls of the two ends of the diameter direction of the quartz rod 8 to avoid the problem that when the diameter of the quartz rod 8 changes, the measuring plates 70 contact the side walls of the quartz rod 8 in a straight line, and it is difficult to accurately measure the change in the diameter of the quartz rod 8. At this time, the laser rangefinder 74 is used to measure the distance H between it and the other supplementary seat 73. The diameter D of the quartz rod 8 is obtained by subtracting the diameter of the two contact balls 76 from the distance H.

[0045] Then, the fixing mechanism 3 is driven by the rotary drive mechanism to rotate the quartz rod 8, and the laser outer diameter measuring mechanism 7 measures the diameter of the quartz rod 8 in the circumferential direction to measure whether the diameter of the quartz rod 8 changes in the circumferential direction. At the same time, the movable platform 4 drives the laser outer diameter measuring mechanism 7 to move axially along the quartz rod 8 through the supporting and guiding mechanism 6 to measure the diameter. When the resistance ball 76 moves to the part where the diameter of the quartz rod 8 changes, the elastic connecting component 75 pushes the resistance ball 76 to contact the side wall of the part where the diameter of the quartz rod 8 changes through the measuring resistance plate 70, thereby realizing the diameter measurement of the quartz rod 8 in the axial direction and the circumferential measurement of different axial positions, thereby improving the comprehensiveness and accuracy of the diameter measurement of the quartz rod 8.

[0046] After the test is completed, the final diameter of the quartz rod 8 is the average distance H after removing the maximum distance H and the last small distance H measured and then subtracting the diameters of the two abutting balls 76, and then checking whether the diameter of the quartz rod 8 is within the standard range.

[0047] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The pressing and locking group 62 includes a rotating ring 610 rotatably connected to the inner wall of the annular cavity seat 5, a gear ring is fixedly installed on the outer ring surface of the rotating ring 610, and a pressing component 611 is installed on the inner ring surface of the rotating ring 610 for pressing multiple push rods 60 during its rotation. An arc groove 612 connected to its inner cavity is opened on the top of the annular cavity seat 5, and an ear plate 613 is installed on the top of the annular cavity seat 5. A gear 614 meshing with the gear ring is rotatably connected to the ear plate 613. A locking component for driving the gear 614 to rotate and implement locking is installed on the top of the annular cavity seat 5, and an insertion and opening driving component for pushing multiple push rods 60 to move away from the axis of the annular cavity seat 5 is installed on the annular cavity seat 5.

[0048] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The locking assembly includes a protective cover 620 installed on the top of the annular cavity seat 5, the ear plate 613 and the gear 614 are both located in the protective cover 620, and the gear 614 is connected to a rotating shaft 621 by a spline fit. One end of the rotating shaft 621 slides through the ear plate 613, and the other end is fixedly installed with a screw 622, which penetrates the protective cover 620 and is connected to the protective cover 620 by a threaded fit.

[0049] The screw 622 is rotated, and the screw 622 drives the rotating shaft 621 to rotate and move axially through the threaded cooperation with the protective cover 620. The rotating shaft 621 drives the gear 614 to rotate through the spline cooperation with the gear 614. The meshing transmission of the gear 614 and the ring gear drives the rotating ring 610 to rotate. The rotating ring 610 drives the pressing assembly 611 to rotate until the pressing assembly 611 contacts the friction-reducing ball at the inner end of the push rod 60, thereby limiting and locking the push rod 60 to prevent the quartz rod 8 from tilting under the action of the rotating centrifugal force and pushing the push rod 60 to move, thereby affecting the accuracy of the laser outer diameter measuring mechanism 7 in measuring the diameter of the quartz rod 8.

[0050] Referring to 4, the pressing assembly 611 includes arc-shaped wedge blocks evenly arranged along the circumference of the rotating ring 610 and installed on the inner ring surface. The arc-shaped wedge blocks correspond to the push rods 60 one by one. The rotating ring 610 drives the arc-shaped wedge blocks to rotate during the rotation process. The inclined surface of the arc-shaped wedge blocks gradually approaches the friction-reducing ball at the inner end of the corresponding push rod 60 until the inclined surface of the arc-shaped wedge blocks contacts the friction-reducing ball, thereby realizing the limit locking of the push rod 60.

[0051] See also Figure 2 , Figure 3 , Figure 5 and Figure 6 The insertion and opening drive assembly includes a plurality of sliders 630 evenly arranged along the circumference of the annular cavity seat 5, which are installed on the inner wall of the inner ring surface thereof, and the sliders 630 correspond to the push rods 60 one by one, and an inclined rod 631 is hinged between the sliders 630 and the side walls of the push rods 60, and a connecting rod 632 is fixedly installed at one end of the slider 630 away from the push rod 60, and a plurality of connecting rods 632 are installed together with a pushing ring 633 after sliding through the annular cavity seat 5.

[0052] Before the quartz rod 8 is inserted, the pushing ring 633 is pushed, and the pushing ring 633 pushes the corresponding slider 630 to move toward the push rod 60 through the connecting rod 632. The slider 630 pulls the push rod 60 through the connecting rod 632 to move in a direction away from the axis of the annular cavity seat 5. At this time, the push spring 61 is in a stretched state, and multiple push rods 60 are expanded and opened to facilitate the quartz rod 8 to be inserted between the multiple push rods 60.

[0053] See also Figure 1 , Figure 2 , Figure 7 and Figure 8 The elastic connection component 75 includes a sliding groove that is opened on both sides of the rectangular groove 72 arranged along its width direction and is slidably connected to the end corresponding to the measuring plate 70. The inner wall of the sliding groove is connected to the measuring plate 70 through a pressure spring 750. A guide rod 751 is installed on the side wall of the middle part of the measuring plate 70 away from the abutment ball 76.

[0054] When the quartz rod 8 is inserted, the two measuring plates 70 are moved by an external driving force or manually pulling the guide rod 751, so that the distance between the two measuring plates 70 is expanded to facilitate the insertion of the quartz rod 8 therebetween. Then the pressure spring 750 pushes the measuring plate 70 toward the quartz rod 8 through its elastic restoring force until the abutting ball 76 is pressed against the side wall of the quartz rod 8.

[0055] See also Figure 1 , Figure 2 , Figure 7 and Figure 8The rectangular groove 72 is provided with a balancing pressure assembly on both sides thereof arranged along its width direction. The balancing pressure assembly includes a balancing resistance rod 720 connected to the inner wall of the rectangular groove 72 and sliding radially along the fixed disk 71. A supporting ball is rollingly installed on the end of the balancing resistance rod 720 close to the center of the fixed disk 71. The fixed disk 71 is provided with a spring groove corresponding to the balancing resistance rod 720 one by one. After the balancing resistance rod 720 slides into the corresponding spring groove, it is connected to the inner wall of the spring groove through a push spring 721. The measuring resistance plate 70 is connected to the balancing resistance rod 720 by pulling and opening the assembly.

[0056] See also Figure 1 , Figure 2 , Figure 7 and Figure 8 The pull-to-open assembly includes a balancing resistance rod 720 connected to two ropes 722 at the ends of a push spring 721. The two ropes 722 are respectively inserted into the upper and lower sliding grooves and connected to the corresponding measuring resistance plates 70.

[0057] Under the elastic force of the push spring 721, the balancing abutment rod 720 abuts against the side wall of the quartz rod 8 through the supporting ball. The balancing abutment rod 720 cooperates with the abutment rod 60 and the supporting guide mechanism 6 to center the quartz rod 8 when the clamping mechanism 3 fixes the quartz rod 8, further improving the accuracy of the laser outer diameter measuring mechanism 7 in measuring the quartz rod 8.

[0058] The two measuring plates 70 are driven to move by an external driving force or manually pulling the guide rod 751, so that when the distance between the two measuring plates 70 is expanded, the measuring plates 70 also pull the rope 722. When the rope 722 is in a taut state, the measuring plates 70 pull the balancing abutment rod 720 through the rope 722 to move away from the center of the fixed plate 71, so as to facilitate the quartz rod 8 to be inserted into the rectangular groove 72.

[0059] See also Figure 1 , Figure 2 and Figure 8 The clamping mechanism 3 includes a rotating disk 30 rotatably connected to the fixed table 2, a fixing ring 31 is fixedly installed on the side wall of the rotating disk 30 close to the fixed disk 71, a driving shaft is fixedly installed on the other side of the rotating disk 30, an inner ring surface of the fixing ring 31 is installed with arc-shaped clamping plates 32 evenly arranged along its circumference, a rubber gasket 33 is installed on the inner arc surface of the arc-shaped clamping plate 32, and a clamping driving group is installed on the fixing ring 31; the overall working principle of the fixing ring 31, the arc-shaped clamping plate 32 and the clamping driving group is the same as that of the three-jaw chuck.

[0060] The multiple arc-shaped clamping plates 32 are driven to move toward the center of the rotating disk 30 through the clamping drive group until the rubber gaskets 33 on the arc-shaped clamping plates 32 are pressed against the side walls of the quartz rod 8, thereby clamping and fixing the quartz rod 8. The rubber gaskets 33 are used to increase the friction between the arc-shaped clamping plates 32 and the quartz rod 8, so as to drive the quartz rod 8 to rotate when the clamping mechanism 3 rotates, and also provide elastic protection for the side walls of the quartz rod 8.

[0061] See also Figure 1-Figure 8 The present invention also provides a method for measuring the diameter of a quartz product, comprising the following steps: S1. Surface cleaning: cleaning the surface of the quartz rod 8 to be measured.

[0062] S2. Support and fixation: insert the quartz rod 8 into the support and guide mechanism 6, the laser outer diameter measuring mechanism 7 and the clamping mechanism 3, fix one end of the quartz rod 8 through the clamping mechanism 3, and lock and clamp the other end of the quartz rod 8 through the support and guide mechanism 6.

[0063] S3. Measure and record: The fixing mechanism 3 is driven by the rotary drive mechanism to rotate the quartz rod 8, and the laser outer diameter measuring mechanism 7 measures the diameter of the quartz rod 8 in the circumferential direction. At the same time, the movable platform 4 drives the laser outer diameter measuring mechanism 7 to move axially along the quartz rod 8 through the supporting and guiding mechanism 6 to measure the diameter, thereby realizing the diameter measurement of the quartz rod 8 in the axial direction and the circumferential measurement at different axial positions, and recording multiple measured distances H to ensure the representativeness and accuracy of the data.

[0064] S4. Calculate the average outer diameter: after removing the maximum distance H and the last small distance H measured, subtract the diameters of the two abutting balls 76 from the average distance H, thereby obtaining the average value of the diameter D of the quartz rod 8 to ensure the reliability of the measurement result, and then check whether the average value of the diameter D of the quartz rod 8 is within the standard range.

[0065] In the description of the present invention, it is necessary to understand that the terms "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0066] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A quartz product diameter measuring device, characterized in that: include: A base (1) is provided, a fixed platform (2) is installed on the top of the base (1), a fixing mechanism (3) is rotatably connected to the fixed platform (2) for fixing one end of a quartz rod (8), and a rotation driving mechanism is also installed on the fixed platform (2) for driving the fixing mechanism (3) to drive the quartz rod (8) to rotate; The base (1) is also provided with a movable platform (4) which slides along its length direction, an annular cavity seat (5) is provided on the top of the movable platform (4), a supporting and guiding mechanism (6) is provided on the annular cavity seat (5), and a laser outer diameter measuring mechanism (7) is provided on the side of the annular cavity seat (5) close to the fixed platform (2); The supporting and guiding mechanism (6) comprises a plurality of push rods (60) connected to the inner ring surface of the annular cavity seat (5) and sliding along the radial direction thereof and evenly arranged along the circumference thereof, the inner and outer ends of the push rods (60) are both rollingly mounted with anti-friction balls, the push rods (60) are connected to the inner wall of the annular cavity seat (5) via push springs (61), and a push locking group (62) for locking the push rods (60) is mounted on the annular cavity seat (5); The laser outer diameter measuring mechanism (7) comprises a fixed disk (71) and two measuring abutment plates (70) symmetrically arranged in the upper and lower parts. The opposite ends of the two measuring abutment plates (70) are both rollingly mounted with abutment balls (76). The fixed disk (71) is connected to the outer side wall of the annular cavity seat (5) through a connecting rod. A rectangular groove (72) penetrating along its axial direction is provided in the middle of the fixed disk (71). The two measuring abutment plates (70) are respectively slidably mounted on the upper and lower side walls of the rectangular groove (72) through elastic connecting components (75). A supplementary seat (73) is mounted on one side of the two measuring abutment plates (70) close to the annular cavity seat (5). The opposite surfaces of the two supplementary seats (73) are respectively flush with the side end surfaces of the measuring abutment plates (70) connected thereto. A laser rangefinder (74) is mounted on one of the supplementary seats (73). The laser emitting end of the laser rangefinder (74) is flush with the side wall of the supplementary seat (73) connected thereto close to the axis of the annular cavity seat (5).

2. A quartz product diameter measuring device according to claim 1, characterized in that: The pressing and locking group (62) comprises a rotating ring (610) rotatably connected to the inner wall of the annular cavity seat (5), a gear ring is fixedly installed on the outer ring surface of the rotating ring (610), a pressing assembly (611) is installed on the inner ring surface of the rotating ring (610) for pressing a plurality of push rods (60) during its rotation, an arc groove (612) is opened on the top of the annular cavity seat (5) and communicates with its inner cavity, an ear plate (613) is installed on the top of the annular cavity seat (5), a gear (614) meshing with the gear ring is rotatably connected to the ear plate (613), a locking assembly for driving the gear (614) to rotate and implement locking is installed on the top of the annular cavity seat (5), and an insertion and opening driving assembly for pushing the plurality of push rods (60) to move in a direction away from the axis of the annular cavity seat (5) is installed on the annular cavity seat (5).

3. A quartz product diameter measuring device according to claim 1, characterized in that: The rectangular groove (72) is provided with a balancing pressure assembly on both sides arranged along the width direction thereof. The balancing pressure assembly comprises a balancing contact rod (720) connected to the inner wall of the rectangular groove (72) and radially sliding along the fixed disk (71). A supporting ball is rollingly installed at the end of the balancing contact rod (720) close to the center of the fixed disk (71). The fixed disk (71) is provided with a spring groove corresponding to the balancing contact rod (720) one by one. After the balancing contact rod (720) slides into the corresponding spring groove, it is connected to the inner wall of the spring groove through a push spring (721). The measuring contact plate (70) and the balancing contact rod (720) are connected through a pull-to-open assembly.

4. A quartz product diameter measuring device according to claim 2, characterized in that: The locking assembly comprises a protective cover (620) installed on the top of the annular cavity seat (5), the ear plate (613) and the gear (614) are both located in the protective cover (620), the gear (614) is connected to a rotating shaft (621) by means of a spline fit, one end of the rotating shaft (621) slides through the ear plate (613), and the other end is fixedly installed with a screw rod (622), the screw rod (622) penetrates the protective cover (620) and is connected to the protective cover (620) by means of a threaded fit.

5. A quartz product diameter measuring device according to claim 2, characterized in that: The insertion and opening drive assembly comprises a plurality of sliders (630) which are evenly arranged along the circumference of the annular cavity seat (5) and are installed on the inner wall of the inner ring surface thereof. The sliders (630) correspond to the push rods (60) one by one. An inclined rod (631) is hinged between the sliders (630) and the side walls of the push rods (60). A connecting rod (632) is fixedly installed at one end of the slider (630) away from the push rod (60). After the plurality of connecting rods (632) slide through the annular cavity seat (5), a push ring (633) is installed together.

6. A quartz product diameter measuring device according to claim 1, characterized in that: The clamping mechanism (3) comprises a rotating disk (30) rotatably connected to the fixed platform (2); a fixing ring (31) is fixedly mounted on a side wall of the rotating disk (30) close to the fixed disk (71); a driving shaft is fixedly mounted on the other side of the rotating disk (30); an arc-shaped clamping plate (32) evenly arranged along its circumference is mounted on the inner ring surface of the fixing ring (31); a rubber gasket (33) is mounted on the inner arc surface of the arc-shaped clamping plate (32); and a clamping drive group is mounted on the fixing ring (31).

7. A quartz product diameter measuring device according to claim 1, characterized in that: The elastic connection component (75) comprises a sliding groove which is arranged on both sides of the rectangular groove (72) along the width direction and is slidably connected to the end portion corresponding to the measuring plate (70); the inner wall of the sliding groove is connected to the measuring plate (70) via a pressure spring (750); and a guide rod (751) is installed on the side wall of the middle part of the measuring plate (70) away from the abutment ball (76).

8. A quartz product diameter measuring device according to claim 7, characterized in that: The pull-to-open assembly comprises a balancing abutment rod (720) connected to two ropes (722) installed at the ends of a push spring (721); the two ropes (722) are respectively inserted into upper and lower sliding grooves and connected to corresponding measuring abutment plates (70).

9. A quartz product diameter measuring device according to claim 2, characterized in that: The pressing assembly (611) comprises arc-shaped wedge blocks evenly arranged along the circumference of the rotating ring (610) and mounted on the inner ring surface thereof, and the arc-shaped wedge blocks correspond one to one with the push rods (60).

10. A method for measuring the diameter of a quartz product, using the quartz product diameter measuring device according to claim 1, characterized in that: The following steps are involved: S1. Surface cleaning: cleaning the surface of the quartz rod (8) to be measured; S2. Support and fixation: insert the quartz rod (8) into the support and guide mechanism (6), the laser outer diameter measuring mechanism (7) and the clamping mechanism (3), fix one end of the quartz rod (8) by the clamping mechanism (3), and lock and clamp the other end of the quartz rod (8) by the support and guide mechanism (6); S3. Measurement and recording: the fixing mechanism (3) is driven by the rotary drive mechanism to drive the quartz rod (8) to rotate, and the laser outer diameter measuring mechanism (7) measures the diameter of the quartz rod (8) in the circumferential direction. At the same time, the movable platform (4) drives the laser outer diameter measuring mechanism (7) to move along the axial direction of the quartz rod (8) through the supporting and guiding mechanism (6) to measure the diameter, thereby achieving the diameter measurement of the quartz rod (8) in the axial direction and the circumferential measurement of different axial positions, and recording multiple measured distances H; S4. Calculate the average outer diameter: After removing the maximum distance H and the last minimum distance H measured, subtract the diameters of the two abutting balls (76) from the average distance H obtained to obtain the average value of the diameter D of the quartz rod (8), and then check whether the average value of the measured diameter D of the quartz rod (8) is within the standard range.

Images