Expansion device of differential confocal radius measurement equipment for measuring coiled products

Abstract

The utility model relates to the technical field of optical measurement, and provides an expansion device of differential confocal radius measuring equipment for measuring coiled products, which comprises a base fixedly connected to an adjusting frame of the differential confocal radius measuring equipment; the first end of the adapter is connected to the base in a position and angle adjustable mode, the second end of the adapter is provided with a connecting part, the connecting part is in rotating butt joint with a machining disc of a to-be-measured disc product, and the first end and the second end are the two axial ends of the adapter; during measurement, the center of the edge part in the processing disc is overlapped with the center line of the differential confocal measurement lens by rotating the position of the disc product to be measured on the adapter and adjusting the position and the angle of the adapter on the base, so that the curvature radius of the edge part is measured. According to the utility model, the measurement of all edge parts on the processing disc can be realized without taking down the edge parts on the processing disc, and the production efficiency and yield of products can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical measurement, and more specifically to an expansion device for measuring a disc product by a differential confocal radius measuring device. Background Art

[0002] In the process of processing spherical products, it is very important to accurately measure the radius of curvature of parts. The method of comparing the sample aperture can only roughly measure the radius of the product. If you want to measure accurately, you need to use equipment such as differential confocal. Differential confocal equipment can measure single-piece processed parts. However, for products processed into discs, there will be differences in the radius of curvature of the products at the center and edge of the disc. The product in the middle of the disc can be aligned with the laser and measured; however, the radius of curvature of the products at the edge cannot be measured because they cannot be aligned. To overcome this problem, the solution of the prior art is to remove the products around the edge for measurement to understand the radius of curvature of the edge products.

[0003] However, in actual use, it is found that this existing solution has obvious disadvantages: if the removed measured part is unqualified and needs to be processed further, it is difficult to glue the removed part back, and after gluing it back, it may not be on the same surface as other parts. For this reason, the edge parts can only be partially removed for measurement, and then the radius of the entire circle of the product is inferred. Not all edge parts can be removed to shorten the measurement time. Obviously, the existing technology for measuring the curvature radius of edge parts of finished products cannot achieve control of all part indicators, which is not conducive to improving product production efficiency and yield. Utility Model Content

[0004] The purpose of the utility model is to provide an expansion device for measuring a disc product by a differential confocal radius measuring device, so as to solve the technical problem that when the differential confocal device measures the disc product, it can only measure the curvature radius of the most central part, cannot directly measure the curvature radius of the edge product, and can only remove part of the edge parts for measurement.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] Provided is an expansion device for measuring a disc product using a differential confocal radius measuring device, comprising: a base fixedly connected to an adjustment frame of the differential confocal radius measuring device; an adapter, wherein the first end of the adapter is adjustably connected to the base in position and angle, and the second end of the adapter is provided with a connecting portion, which is rotatably docked with a processing disc of the disc product to be measured, and the first end and the second end are two axial ends of the adapter; during measurement, by rotating the position of the disc product to be measured on the adapter and adjusting the position and angle of the adapter on the base, the center of the edge part in the processing disc and the center line of the differential confocal measuring lens are made to coincide, so as to measure the curvature radius of the edge part.

[0007] In some optional technical schemes, the base includes: a slide groove, a through hole is provided on the side wall of the slide groove, and the through hole extends along the length direction of the slide groove and passes through the side wall of the slide groove; the first end of the adapter includes a slider, which is embedded in the slide groove and can slide in the slide groove, and a first threaded hole is provided on the slider, and the first threaded hole corresponds to the through hole. The adapter is fastened or loosened with the base by a first locking screw passing through the through hole and cooperating with the first threaded hole; when the adapter and the base are in a loosely connected state, the adapter can adjust the position by sliding the slider in the slide groove, and adjust the angle by rotating around the first locking screw; when measuring, the adapter and the base are in a fastened connection state.

[0008] In some optional technical solutions, the slide groove is a rectangular groove, the slider is a cylinder, a plane is provided on the cylindrical surface where at least one radial end of the cylinder is located, and the first threaded hole is arranged on the plane.

[0009] In some optional technical solutions, the trajectory of the slide groove is an arc trajectory.

[0010] In some optional technical solutions, the base includes a track, and a ball head hinge is provided at the first end of the adapter, the ball head hinge includes a ball head and a ball socket, the ball head is arranged in the ball socket and can rotate at any angle in the ball socket, the ball head or the ball socket is embedded in the track, and a first locking mechanism is provided on the track, the first locking mechanism has two states, locked and unlocked, in the unlocked state, the ball head or the ball socket can move along the track of the track, and in the locked state, the ball head or the ball socket is fixed on the track.

[0011] In some optional technical solutions, the connecting part includes a sleeve, which is docked with the processing disk on the finished disk product to be measured, and a second locking mechanism is provided on the sleeve, and the second locking mechanism includes two states: locking and releasing. When the second locking mechanism is in the releasing state, the processing disk is sleeved in the sleeve and can rotate in the sleeve. When the second locking mechanism is in the tightening state, the processing disk is fixedly connected to the sleeve.

[0012] In some optional technical solutions, the second locking mechanism includes at least one second threaded hole, which is arranged on the outer side of the sleeve and passes through the side wall of the sleeve; when measuring, the processing disk is inserted into the sleeve, and the sleeve is fastened or loosened with the processing disk by cooperating with the second threaded hole through the second locking screw.

[0013] In some optional technical solutions, the connecting part includes a docking component and a rotating component, the docking component is rotatably connected to the second end of the adapter via the rotating component, and a first locking mechanism is provided on the rotating component. The first locking mechanism includes two states: locked and unlocked. In the unlocked state, the docking component is fixedly connected to the processing disk on the finished disk product to be measured, and the docking component can rotate relative to the second end of the adapter; in the locked state, the docking component is locked and connected to the second end of the adapter.

[0014] In some optional technical solutions, the docking component includes but is not limited to a suction cup, a magnet or a clamp.

[0015] In some optional technical schemes, the rotating component includes a threaded column or a threaded hole, and the docking component is provided with a corresponding threaded hole or a threaded column, and the threaded column and the threaded hole are matched and connected to realize the rotational connection of the docking component at the second end of the adapter; or, the rotating component includes a bearing and a second locking mechanism, the inner ring of the bearing is connected to the docking component, and the outer ring of the bearing is connected to the second end of the adapter, and the second locking mechanism is arranged on the second end of the docking component or the adapter, and includes two states: locked and unlocked. In the unlocked state, the docking component can rotate relative to the second end of the adapter through the bearing, and in the locked state, the docking component and the second end of the adapter are relatively fixed.

[0016] The beneficial effect of the expansion device for measuring the disc product by the differential confocal radius measuring device provided by the utility model is at least that: the base is fixedly connected to the adjustment frame of the differential confocal radius measuring device through the base and the adapter; the adapter comprises a first end and a second end, the first end and the second end of the adapter are axially opposite, the first end of the adapter is positionally and angle-adjustably connected to the base, the second end of the adapter is provided with a connecting portion, the connecting portion is rotatably docked with the processing disc of the disc product to be measured, and the first end and the second end are axial ends of the adapter; during measurement, by rotating the position of the disc product to be measured on the adapter and adjusting the position and angle of the adapter on the base, the center of the edge part in the processing disc and the center line of the differential confocal measuring lens are made to coincide, so as to measure the curvature radius of the edge part, and during the measurement process, it is not necessary to remove the edge part of the disc processed product on the processing disc for measurement, thereby avoiding the situation that the measured edge part is unqualified and needs to be further processed, and it is difficult to glue the removed part back, thereby achieving the control of all part indicators, which is conducive to improving product production efficiency and yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A three-dimensional structural diagram of an expansion device for measuring a disc product by a differential confocal radius measuring device provided in an embodiment of the utility model;

[0019] Figure 2 A side perspective structural diagram of an expansion device for measuring a disc product using a differential confocal radius measuring device provided by an embodiment of the utility model;

[0020] Figure 3 The structure of the expansion device for measuring the disc product by the differential confocal radius measuring device provided by the embodiment of the utility model on the adjustment frame Figure 1 ;

[0021] Figure 4 The structure of the expansion device for measuring the disc product by the differential confocal radius measuring device provided by the embodiment of the utility model on the adjustment frame Figure 2 ;

[0022] Figure 5 A structural diagram of a base provided in an embodiment of the utility model;

[0023] Figure 6 A structural diagram of an adapter provided in an embodiment of the utility model;

[0024] Figure 7 A cross-sectional view of an adapter provided in an embodiment of the utility model;

[0025] Figure 8 A cross-sectional view of the connection between an adapter, a base and a processing disk provided in an embodiment of the utility model.

[0026] Among them, the reference numerals in the figure are:

[0027] 1. Base; 11. Slide groove; 12. Through hole; 13. Mounting plate; 14. First mounting hole; 2. Adapter; 21. Slider; 211. First threaded hole; 22. Sleeve; 221. Second threaded hole; 3. Adjustment frame; 4. Processing disk; 41. Edge part; 5. First locking screw; 6. Second locking screw. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly or indirectly located on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on the present technical solution. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0030] Technical term explanation:

[0031] Differential confocal equipment, namely laser differential confocal curvature radius measurement equipment, refers to the precise measurement of the curvature of the surface of an object mainly through the reflection of laser and the principle of differential confocality. This method and device have broad application prospects in the fields of surface quality inspection and optical component manufacturing. When measuring with differential confocal equipment, the product center needs to be aligned with the lens center.

[0032] Disc processing means that in order to improve production efficiency, some spherical products will be processed in discs, ranging from a few to dozens of pieces per disc. The specific decision of whether to make a disc is based on parameters such as product radius and diameter. In practice, the curvature radius, center thickness, and surface shape of the center and edge parts of the disc of products processed in discs will be different.

[0033] See also Figures 1 to 4In one embodiment of the present application, there is provided an expansion device for measuring a disc product using a differential confocal radius measuring device, comprising at least a base 1 and an adapter 2, wherein the base 1 is fixedly connected to an adjustment frame 3 of the differential confocal radius measuring device; the adapter 2 comprises a first end and a second end, wherein the first end and the second end of the adapter 2 are axially opposite to each other, the first end of the adapter 2 is positionally and angle-adjustably connected to the base 1, the second end of the adapter 2 is provided with a connecting portion, the connecting portion is rotatably docked with a processing disc 4 of the disc product to be measured, the first end and the second end are axial ends of the adapter 2; during measurement, by rotating the position of the disc product to be measured on the adapter 2 and adjusting the position and angle of the adapter 2 on the base 1, the center of an edge part 41 in the processing disc 4 coincides with a center line L of a differential confocal measurement lens, so as to measure the curvature radius of the edge part 41.

[0034] The working principle of the extended device for measuring the finished product of the differential confocal radius measuring device is as follows: the base 1 is fixedly connected to the adjustment frame 3 of the differential confocal device, the first end of the adapter 2 is connected to the base 1, and then the processing disk 4 of the finished product to be measured is fixedly connected to the second end of the adapter 2. Since the adapter 2 can be moved on the base 1 to adjust the relative position and angle with the base 1, and the processing disk 4 of the finished product to be measured can be rotated at the second end of the adapter 2, the center of the edge part 41 in the processing disk 4 can be made to coincide with the center line L of the differential confocal measurement lens through adjustment, so as to measure the curvature radius of the edge part 41. And in the case where the processing disk 4 contains multiple edge parts 41, after measuring the curvature radius of one edge part 41, the processing disk 4 can be rotated to make the next edge part 41 coincide with the center line L of the differential confocal measurement lens, so as to achieve the measurement of the curvature radius of all edge parts 41 on the processing disk 4.

[0035] It can be seen that according to the expansion device for measuring the disc product of the differential confocal radius measuring device provided in this embodiment, the base 1 is fixedly connected to the adjustment frame 3 of the differential confocal radius measuring device through the base 1 and the adapter 2; the adapter 2 includes a first end and a second end, the first end and the second end of the adapter 2 are axially opposite to each other, the first end of the adapter 2 is positionally and angle-adjustably connected to the base 1, the second end of the adapter 2 is provided with a connecting portion, the connecting portion is rotatably docked with the processing disk 4 of the disc product to be measured, and the first end and the second end are the axial ends of the adapter 2; when measuring, the disc product to be measured is rotated on the adapter 2, and adjust the position and angle of the adapter 2 on the base 1, so that the center of the edge part 41 in the processing disk 4 coincides with the center line L of the differential confocal measurement lens, to measure the curvature radius of the edge part 41. In addition, during the measurement process, it is not necessary to remove the edge part 41 of the finished product on the processing disk 4 for measurement, so that all edge parts 41 on the processing disk 4 can be measured, thereby avoiding the situation that the edge part 41 is unqualified and needs to be processed further, and it is difficult to glue the removed parts back. In this way, the control of all part indicators is achieved, which is beneficial to improving product production efficiency and yield.

[0036] The first end of the adapter 2 is connected to the base 1 in an adjustable position and angle, and the disc-processed product to be measured is rotatably connected to the second end of the adapter 2, both for adjusting the center of the edge part 41 of the disc-processed product on the processing disc 4 to coincide with the center line L of the differential confocal measurement lens. In practice, there are not only specific implementation methods for realizing the adjustable position and angle connection of the first end of the adapter 2 on the base 1, and two preferred embodiments are listed below for reference.

[0037] In an alternative embodiment, see Figures 5 to 8 The base 1 includes a slide groove 11, and a through hole 12 is provided on the side wall of the slide groove 11. The through hole 12 extends along the length direction of the slide groove 11 and passes through the side wall of the groove; the first end of the adapter 2 includes a slider 21, the slider 21 is embedded in the slide groove 11 and can slide in the slide groove 11, and a first threaded hole 211 is provided on the slider 21. The first threaded hole 211 corresponds to the position of the through hole 12, and the first threaded hole 211 is connected with the first locking screw 5 passing through the through hole 12 to make the adapter 2 and the base 1 in a fastened connection state or a loosened connection state; when the adapter 2 and the base 1 are in a loosened connection state, the adapter 2 can adjust the position by sliding the slider 21 in the slide groove 11, and adjust the angle by rotating with the first locking screw 5 as the rotating axis; when measuring, the adapter 2 and the base 1 are in a fastened connection state.

[0038] Specifically, combined Figure 8For example, the first locking screw 5 passes through the through hole 12 on the side wall of the side slot and is threadedly tightened or loosened with the first threaded hole 211. Its function is to serve as a locking mechanism to lock or loosen the adapter 2 and the base 1. For example, when the position and / or angle of the adapter 2 need to be adjusted, the first locking screw 5 is tightened and matched with the first threaded hole 211, so that the adapter 2 and the base 1 are in a loose connection state; after the adjustment is completed, the first locking screw 5 is loosened and matched with the first threaded hole 211, so that the adapter 2 and the base 1 are in a fastened connection state for measurement. In this embodiment, the first locking screw 5 passes through the through hole 12 on the side wall of the side slot and is threadedly tightened or loosened with the first threaded hole 211 to relatively fix or loosen the adapter 2 and the slide 11. This threaded locking method can prevent the adapter 2 from deviating from the adjusted position and angle during the process of fastening it to the slide 11 after adjusting the position and angle, and can meet the requirements of accurate and stable measurement.

[0039] Of course, in actual applications, the functions of the first locking screw 5, the through hole 12 and the first threaded hole 211 can also be achieved through other structures, including but not limited to a bolt locking mechanism, a locking rod locking mechanism and a clamping device locking mechanism.

[0040] For example, the bolt locking mechanism includes a bolt hole and a bolt, the bolt hole is arranged on the side wall of the slider and the slide slot, and the slider is fastened or loosened on the slide slot by the cooperation between the bolt and the bolt hole. In addition, the locking rod locking mechanism includes a locking hole and a locking rod, the locking hole is arranged on the slider and the track, and the locking rod is provided with a nut or a buckle, the locking rod is inserted into the locking hole of the slider and the slide slot, and the slider is tightly attached to the side wall of the slide slot by tightening the nut or fastening the buckle, so that the adapter 2 is fixedly connected or loosened on the slide slot 11. In addition, the clamping device locking mechanism can be a clamping pliers or a clamping nut, and when the clamping pliers or the clamping nut is loosened, the position and angle of the slider in the slide slot are adjusted. After the adjustment is completed, the clamping pliers or the clamping nut are used to clamp the slider so that the slider is tightly attached to and fixed to the side wall of the slide slot.

[0041] Furthermore, the shapes of the slide groove and the slider correspond to each other. Taking the slide groove as an example, the slide groove can be any one of a rectangular groove, a T-shaped groove, a V-shaped groove, a circular groove, a semicircular groove, a square groove and a dovetail groove. For example, in one embodiment, the slide groove 11 is a rectangular groove, and the slider 21 is a cylinder. The cylinder surface where the radial ends of the cylinder are located is provided with a plane, and the plane is directly opposite to the groove side wall of the slide groove, and the first threaded hole 211 is provided on the plane. In this embodiment, the two ends where the adapter 2 is connected to the groove side wall of the slide groove are processed into planes, which can facilitate the fixation between the slider and the slide groove.

[0042] Furthermore, the track of the slide groove can be a straight track or a circular arc track. Figure 5 As shown, the track of the slide groove is preferably an arc. Since the curvature radius of the edge part 41 on the processing disk 4 is measured, that is, the edge part 41 has a curvature, the track of the slide groove is set to a circular arc track. Then, when the slider 21 is moved along the track of the slide groove, the center of the edge part 41 can be adjusted to a position that coincides with the center line of the differential confocal measurement lens, or a position that is roughly close to the center line of the differential confocal measurement lens. Then, fine adjustment is achieved by rotating the slider 21 until the center of the edge part 41 coincides with the center line of the differential confocal measurement lens. It can be seen that this embodiment is more conducive to quickly adjusting the center of the edge part 41 to coincide with the center line of the differential confocal measurement lens by designing the track of the slide groove as a circular arc track.

[0043] In another optional embodiment, the base 1 includes a track, and a ball head hinge is provided at the first end of the adapter 2. The ball head hinge includes a ball head and a ball socket. The ball head is arranged in the ball socket and can be rotated at any angle in the ball socket. The ball head or the ball socket is embedded in the track, and a first locking mechanism is provided on the track. The first locking mechanism has two states, locked and unlocked. In the unlocked state, the ball head or the ball socket can move along the track of the track. In the locked state, the ball head or the ball socket is fixed on the track.

[0044] This embodiment uses a ball joint to achieve angle adjustment of the adapter 2 on the base 1. Compared with the way in which the slider rotates in the slide groove with the first locking screw 5 as the axis of rotation, the ball joint has a wider angle adjustment range and higher adjustment accuracy, thereby further improving the angle adjustment accuracy of the adapter 2 on the base 1.

[0045] Specifically, the track includes but is not limited to a slide rail or a slide groove. When the track is a slide groove, the structure of the slide groove and the slider in the previous optional embodiment can be used to achieve the relative sliding connection between the adapter 2 and the base 1. When the track is a slide rail, a slider, a ball, a roller, a sleeve and other structures can be used to cooperate with the slide rail to achieve the movement and adjustment of the ball head or the ball socket on the track.

[0046] In addition, the first locking mechanism on the rail can refer to the structure of the first locking screw 5, the through hole 12 and the first threaded hole 211 or a similar structure, which will not be described again here.

[0047] The connection portion at the second end of the adapter 2 is used to align with the disc processed product to be measured, so that the processing disc 4 on the disc processed product can be rotated and adjusted at the second end of the adapter 2, so that after measuring one edge part 41, it can be switched to another edge part 41 for measurement.

[0048] In an alternative embodiment, in combination Figures 6 to 8For example, the connecting portion includes a sleeve 22, which is docked with the processing disk 4 on the finished product to be measured, and a second locking mechanism is provided on the sleeve 22. The second locking mechanism includes two states, locking and releasing. When the second locking mechanism is in the releasing state, the processing disk 4 is sleeved in the sleeve 22 and can rotate in the sleeve 22. When the second locking mechanism is in the tightening state, the processing disk 4 is fixedly connected to the sleeve 22.

[0049] The specific implementation of the second locking mechanism is not unique. For example, Figures 6 to 8 For example, at least one second threaded hole 221 is provided on the outer surface of the sleeve 22, and the second threaded hole 221 penetrates the side wall of the sleeve 22; when measuring, the processing disk 4 is inserted into the sleeve 22, and the sleeve 22 is fastened or loosened with the processing disk 4 by cooperating with the second locking screw 6 and the second threaded hole 221. Specifically, Figure 2 and Figure 8 As shown, a positioning column is provided at the bottom of the processing disk 4, and the caliber of the sleeve 22 matches the diameter of the positioning column, allowing the positioning column to be just inserted into the sleeve 22 and to rotate in the sleeve 22. The second locking screw 6 is tightened or loosened with the second threaded hole 221. When tightened, the second locking screw 6 moves along the second threaded hole 221 toward the inner side of the sleeve 22 until the front end of the second locking screw 6 abuts against the positioning column of the processing disk 4, thereby locking the processing disk 4 and limiting the rotation of the processing disk 4 relative to the sleeve 22; when loosened, the second locking screw 6 moves along the second threaded hole 221 toward the inner side of the sleeve 22, at which time the front end of the second locking screw 6 is separated from the positioning column of the processing disk 4, so that the processing disk 4 can rotate in the sleeve 22, so as to adjust the position of the edge part 41, so that the center of one of the edge parts 41 coincides with the center line of the differential confocal measurement lens, so as to measure the curvature radius of the edge part 41. Of course, in practice, the second locking mechanism may also adopt other structures, and the embodiments of the present application are not limited to this.

[0050] In an application scenario, combined with Figure 4 and Figure 8 For example, the adapter 2 is fixed to the slide groove by the first locking screw 5, and the slide groove can be fixed to the adjustment frame 3 of the differential confocal device. The processing disk 4 of the finished product is fixed to the sleeve 22 at the second end of the adapter 2 by the second locking screw 6. By loosening the second locking screw 6, the product processing disk 4 can be rotated; by loosening the first locking screw 5, the adapter 2 can change the position and angle in the groove of the slide groove. Through adjustment, the center of the edge part 41 in the processing disk 4 and the center line of the differential confocal measurement lens can be coincident, so that the curvature radius of the edge part 41 can be measured. After completing the measurement of one edge part 41, loosen the second locking screw 6, rotate the processing disk 4, and then other edge parts 41 on the edge of the processing disk 4 can be measured.

[0051] In an optional embodiment, the connecting portion includes a docking component and a rotating component, the docking component is rotatably connected to the second end of the adapter 2 via the rotating component, a first locking mechanism is provided on the rotating component, the first locking mechanism includes two states, namely, a locked state and an unlocked state, when in the unlocked state, the docking component is fixedly connected to the processing disk 4 on the finished disk product to be measured, and the docking component can rotate relative to the second end of the adapter 2; when in the locked state, the docking component is locked and connected to the second end of the adapter 2.

[0052] Different from the previous embodiment, this embodiment realizes rotational adjustment of the processing disk 4 connected to the docking component by making the connecting portion rotatably adjustable at the second end of the adapter 2, so that after measuring one edge part 41, the docking component can be allowed to rotate by unlocking the first locking mechanism, so that the center of another edge part 41 is coincident with the center line of the differential confocal measurement lens to measure the curvature radius of the edge part 41.

[0053] The specific implementation of the docking component is not unique, and includes but is not limited to structures such as a suction cup, a magnet, and a clamp. For example, when the docking component is a suction cup or a magnet, the processing disk 4 can be adsorbed and connected to the docking component; when the docking component is a clamp, the processing disk 4 can be directly clamped to fix the processing disk 4 on the docking component.

[0054] In addition, the specific implementation of the rotating component is not unique. For example, the rotating component may include a threaded column or a threaded hole, and the docking component is provided with a corresponding threaded hole or a threaded column. The threaded column and the threaded hole are matched and connected to realize the rotational connection of the docking component at the second end of the adapter 2. For another example, the rotating component includes a bearing and a second locking mechanism, the inner ring of the bearing is connected to the docking component, and the outer ring of the bearing is connected to the second end of the adapter 2. The second locking mechanism is arranged on the docking component or the second end of the adapter 2, and includes two states: locked and unlocked. In the unlocked state, the docking component can rotate relative to the second end of the adapter 2 through the bearing. In the locked state, the docking component and the second end of the adapter 2 are relatively fixed and cannot be rotated and adjusted.

[0055] Of course, in actual applications, the docking components and the rotating components can also be implemented as other structures, and are not limited to the above-mentioned methods, and the embodiments of the present application do not limit this.

[0056] Furthermore, since the base 1 is used to be connected to the adjustment frame 3 of the differential confocal radius measuring device, the structure of the adjustment frame 3 of the differential confocal radius measuring device may not be uniform in practice, so the specific connection method between the base 1 and the adjustment frame can be determined according to the actual application scenario.

[0057] In an alternative embodiment, in combination Figure 3 and 4For example, the base 1 further includes a mounting plate 13, and at least one first mounting hole 14 is provided on the mounting plate 13, which is used to fix the base 1 on the adjustment frame 3 of the differential confocal radius measuring device. Specifically, an adjustment frame 3 of a differential confocal radius measuring device has a vertical docking plane, and at least one second mounting hole is provided on the docking plane. The positions of the first mounting hole 14 and the second mounting hole correspond one to one, and can be fastened and connected by screws or bolts to fix the mounting plate 13 on the adjustment frame 3, so that the base 1 is fixedly connected to the adjustment frame 3 of the differential confocal radius measuring device, and is used to fix the disc processed product to measure the curvature radius of the edge part 41 on the processing disc 4.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A differential confocal radius measuring device for measuring the expansion of a disc product, characterized in that: include: A base, fixedly connected to an adjustment frame of a differential confocal radius measuring device; An adapter, wherein the first end of the adapter is connected to the base in an adjustable position and angle, and the second end of the adapter is provided with a connecting portion, and the connecting portion is rotatably docked with the processing disk of the disk product to be measured, and the first end and the second end are the axial ends of the adapter; During measurement, the curvature radius of the edge part is measured by rotating the position of the disk product to be measured on the adapter and adjusting the position and angle of the adapter on the base so that the center of the edge part in the processing disk coincides with the center line of the differential confocal measurement lens.

2. The expansion device for measuring disc products by using a differential confocal radius measuring device according to claim 1, characterized in that: The base comprises: a slide slot, a through hole is provided on the side wall of the slide slot, and the through hole extends along the length direction of the slide slot and penetrates the side wall of the slide slot; The first end of the adapter includes a slider, which is embedded in the slide groove and can slide in the slide groove. The slider is provided with a first threaded hole, which corresponds to the through hole. The adapter is fastened or loosened with the base by a first locking screw passing through the through hole and cooperating with the first threaded hole; When the adapter and the base are in a loose connection state, the adapter can adjust its position by sliding the slider in the slide groove, and adjust its angle by rotating around the first locking screw; during measurement, the adapter and the base are in a tight connection state.

3. The expansion device for measuring disc products by using a differential confocal radius measuring device according to claim 2, characterized in that: The slide groove is a rectangular groove, the slider is a cylinder, a plane is provided on the surface of the cylinder where at least one radial end of the cylinder is located, and the first threaded hole is arranged on the plane.

4. The expansion device for measuring disc products by using a differential confocal radius measuring device according to claim 2, characterized in that: The track of the slide groove is a circular arc track.

5. The expansion device for measuring disc products by using a differential confocal radius measuring device according to claim 1, characterized in that: The base includes a track, and a ball hinge is provided at the first end of the adapter. The ball hinge includes a ball head and a ball socket. The ball head is arranged in the ball socket and can be rotated at any angle in the ball socket. The ball head or the ball socket is embedded in the track, and a first locking mechanism is provided on the track. The first locking mechanism has two states, locked and unlocked. In the unlocked state, the ball head or the ball socket can move along the track of the track. In the locked state, the ball head or the ball socket is fixed on the track.

6. The expansion device for measuring disc products by using a differential confocal radius measuring device according to any one of claims 1 to 5, characterized in that: The connecting portion includes a sleeve, which is docked with a processing disk on a finished disk product to be measured, and a second locking mechanism is provided on the sleeve, the second locking mechanism includes two states, locking and releasing, when the second locking mechanism is in the releasing state, the processing disk is sleeved in the sleeve and can rotate in the sleeve, when the second locking mechanism is in the tightening state, the processing disk is fixedly connected to the sleeve.

7. The expansion device for measuring disc products by using a differential confocal radius measuring device according to claim 6, characterized in that: The second locking mechanism includes at least one second threaded hole, which is arranged on the outer side of the sleeve, and the second threaded hole passes through the side wall of the sleeve; when measuring, the processing disk is inserted into the sleeve, and the sleeve is fastened or loosened with the processing disk by cooperating with the second threaded hole through the second locking screw.

8. The expansion device for measuring disc products by using a differential confocal radius measuring device according to any one of claims 1 to 5, characterized in that: The connecting portion includes a docking component and a rotating component, the docking component is rotatably connected to the second end of the adapter via the rotating component, a first locking mechanism is provided on the rotating component, the first locking mechanism includes two states, a locked state and an unlocked state, in the unlocked state, the docking component is fixedly connected to the processing disk on the disk product to be measured, and the docking component can rotate relative to the second end of the adapter; in the locked state, the docking component is locked and connected to the second end of the adapter.

9. The expansion device for measuring disc products by using a differential confocal radius measuring device according to claim 8, characterized in that: The docking component includes but is not limited to a suction cup, a magnet or a clamp.

10. The expansion device for measuring disc products by using a differential confocal radius measuring device according to claim 8, characterized in that: The rotating component includes a threaded column or a threaded hole, and the docking component is provided with a corresponding threaded hole or a threaded column, and the threaded column and the threaded hole are matched and connected to realize the rotation connection of the docking component at the second end of the adapter; Alternatively, the rotating component includes a bearing and a second locking mechanism, the inner ring of the bearing is connected to the docking component, and the outer ring of the bearing is connected to the second end of the adapter. The second locking mechanism is arranged on the second end of the docking component or the adapter, and includes two states: locked and unlocked. In the unlocked state, the docking component can rotate relative to the second end of the adapter through the bearing, and in the locked state, the docking component and the second end of the adapter are relatively fixed.

Images