An optical glass block surface optical processing device and method

Abstract

The application belongs to the technical field of precision optical processing, and discloses a special-shaped optical glass block surface optical processing device and method. The cavity fixing part composed of the first supporting ring and the second supporting ring can simultaneously place multiple parts in the separator for simultaneous processing, solves the limitation problem that the special-shaped optical glass block is irregular in shape and small in processing surface, and is difficult to process in batches, and improves the processing efficiency. Through the first supporting ring and the second supporting ring clamping the part, all the surfaces except the processing surface of the part are placed in the supporting device, so that the bumping is avoided and the generation of defects caused by the bumping is reduced. The counterweight device can accurately adjust the position of the counterweight device according to the deviation of the initial angle of the part processing surface, so that the effect of quickly correcting the angle is achieved. The application can be used for polishing processing of the surfaces of special-shaped optical glass blocks of various sizes and shapes.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of precision optical processing, and particularly relates to a special-shaped optical glass block surface optical processing device and method. BACKGROUND

[0002] At present, in the production and processing of the surface of a special-shaped optical glass block, the surface of the glass needs to be polished. The polishing technology for optical glass lenses is relatively perfect at present, but the polishing method for the surface of a special-shaped optical glass block is relatively single and low in efficiency, and it is difficult to realize batch processing.

[0003] Generally, the special-shaped optical block processing surface is clamped on the spindle of a polishing machine using a clamp with the processing surface facing up, and a special polishing mold is installed on the swing shaft of the polishing machine, and the processing surface is polished by the back-and-forth swinging of the polishing mold on the swing shaft and the rotation of the spindle to realize the polishing of the working surface. This polishing method can only polish one surface of a special-shaped part at a time with one polishing shaft, and it is difficult to realize batch processing, and the processing efficiency is low, and the clamped surface is prone to produce defects such as broken points and scratches, which is prone to cause rework risk, which also increases the processing cost. SUMMARY

[0004] The present application aims to overcome the problems of single processing method, low efficiency, difficulty in realizing batch processing, and rework in the processing process in the prior art, and provides a special-shaped optical glass block surface optical processing device and method.

[0005] In order to achieve the above-mentioned purpose, a special-shaped optical glass block surface optical processing device comprises a first support ring and a second support ring, the first support ring and the second support ring are connected by a connector to form a cavity, the cavity formed by the first support ring and the second support ring is used to fix a part and expose the bottom of the part, the bottom of the first support ring and the second support ring is provided with an auxiliary bottom plate, the bottom of the auxiliary bottom plate is provided with a grinding block, and the top of the first support ring and the second support ring is provided with a counterweight device.

[0006] The counterweight device comprises an auxiliary magnetic base, a center positioning pin is arranged on the auxiliary magnetic base, a counterweight magnetic base is sleeved on the center positioning pin, a counterweight block is arranged on the counterweight magnetic base, a counterweight positioning pin is arranged at the bottom of the counterweight block, a clamping groove is arranged at the bottom of the counterweight positioning pin, a sink groove guide rail with a size scale line is formed on the counterweight magnetic base, and the clamping groove of the counterweight positioning pin is sleeved on the sink groove guide rail and can slide on the sink groove guide rail.

[0007] A magnetic ring is inlaid at the bottom of the auxiliary magnetic base, and the magnetic ring is used to adsorb the first support ring and the second support ring;

[0008] The counterweight magnetic attraction base is internally provided with a magnetic strip, the magnetic strip is connected with a magnetic attraction switch, the magnetic attraction switch is used for controlling the magnetism of the magnetic strip, and the counterweight block and the counterweight magnetic attraction base can be fixed.

[0009] The auxiliary magnetic base and the counterweight magnetic attraction base are both provided with an angle scale.

[0010] Four pads are arranged in the cavity formed by the first support ring and the second support ring, the four pads are arranged on four contact surfaces in the cavity respectively, and a groove is arranged in the middle of the contact side of the pad and the part.

[0011] The grinding block is made of the same material as the part.

[0012] Four angle measuring square holes are formed in the side walls of the first support ring and the second support ring.

[0013] A processing method based on a special-shaped optical glass block surface optical processing device, comprising the following steps:

[0014] S1, fixing an auxiliary base plate at the bottom of the first support ring and the second support ring respectively, and fixing a grinding block at the bottom of the auxiliary base plate;

[0015] S2, the grinding block of the first support ring and the second support ring is attached to the polishing surface of the auxiliary upper clamping tool;

[0016] S3, the processing surface of the part is fixed downward in the cavity formed by the first support ring and the second support ring, so that the processing surface of the part is attached to the polishing surface of the auxiliary upper clamping tool, and the first support ring and the second support ring are fixed through the connector;

[0017] S4, the counterweight device is adsorbed on the top of the first support ring and the second support ring, and the fixing is completed;

[0018] S5, polishing the processing surface.

[0019] The processing surface of the part is placed downward in the cavity of the first support ring and the second support ring, the surface of the part with angle requirement is placed towards the angle measuring square hole of the first support ring and the second support ring, the attached stripes of the processing surface and the grinding block are adjusted to be connected, and the part is fixed by the pad.

[0020] After the counterweight device is installed, the 0° position of the angle scale of the auxiliary magnetic base is adjusted to the initial measurement angle offset position of the processing surface of the part, the angle scale line on the counterweight magnetic attraction base corresponding to the lower side of the counterweight block is aligned with the 0° position of the angle scale of the auxiliary magnetic base, at this time, the magnetic attraction switch is opened, and the auxiliary magnetic base, the counterweight magnetic attraction base and the counterweight block are fixed.

[0021] Compared with the prior art, the cavity formed by the first supporting ring and the second supporting ring can fix the parts, and multiple parts can be simultaneously placed in the separator for simultaneous processing, the irregular shape of the special-shaped optical glass block and the small processing surface are solved, and the batch disc processing is difficult, and the processing efficiency is improved. By clamping the parts by the first supporting ring and the second supporting ring, all the surfaces except the processing surface of the parts are placed inside the supporting device, so that the parts are prevented from being damaged due to collision. The counterweight device can accurately adjust the position of the counterweight device according to the deviation of the initial angle of the processing surface of the parts, so that the angle can be quickly corrected. The present application can be used for polishing the surface of the special-shaped optical glass block of various sizes and shapes.

[0022] Further, the contact side of the cushion block and the part is provided with a groove, which avoids the working area of the contact surface of the part when the part is fixed, so that the working area is suspended, the working area is prevented from being damaged during processing, and the processing process is convenient to take, the time for checking during processing is shortened, the time cost for disassembling and clamping back and forth during processing is saved, and the risk of rework is avoided.

[0023] The method of the present application fixes the parts in the cavity formed by the first supporting ring and the second supporting ring, the bottom surface and the working surface of the parts can be in contact with the polishing die, and the other surfaces are inside the first supporting ring and the second supporting ring, so that the parts are prevented from being damaged due to contact with external objects. The present application has the advantages of simple operation, high processing efficiency, high angle accuracy, excellent surface shape and high smoothness. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The figure is a schematic view of the supporting device structure of the present application;

[0025] Figure 2 The figure is a top view of the supporting device of the present application;

[0026] Figure 3 The figure is a schematic view of the counterweight device in the present application;

[0027] Figure 4 The figure is a working state schematic view of the counterweight device in the present application;

[0028] Figure 5 The figure is a working state top view of the present application;

[0029] Figure 6 The figure is a working state schematic view of the present application;

[0030] Figure 7 The figure is a working state sectional view of the present application;

[0031] Figure 8 The figure is a partial top view of the sink groove guide rail in the present application;

[0032] Figure 9 Schematic diagram of counterweight positioning pin in the application;

[0033] Wherein, 1, counterweight positioning pin; 2, center positioning pin; 3, first support ring; 4, auxiliary bottom plate; 5, grinding block; 6, separator; 9, connector; 10, second support ring; 11, cushion block; 12, part; 13, auxiliary upper clamping tool; 14, auxiliary magnetic base; 15, counterweight magnetic base; 16, counterweight block. DETAILED DESCRIPTION

[0034] The application will be further described below with reference to the drawings.

[0035] Referring to Figure 1 and Figure 2 , a special-shaped optical glass block surface optical processing device comprises a first support ring 3 and a second support ring 10, the first support ring 3 and the second support ring 10 are connected by a connector 9 to form a cavity, the cavity composed of the first support ring 3 and the second support ring 10 is used for fixing a part 12 and exposing the bottom of the part 12, the bottom of the first support ring 3 and the second support ring 10 is provided with an auxiliary bottom plate 4, the bottom of the auxiliary bottom plate 4 is provided with a grinding block 5, and the top of the first support ring 3 and the second support ring 10 is provided with a counterweight device. The grinding block 5 is made of the same material as the part 12. Four angle measuring square holes are formed in the side walls of the first support ring 3 and the second support ring 10. Four cushion blocks 11 are arranged in the cavity composed of the first support ring 3 and the second support ring 10, the four cushion blocks 11 are arranged on the four contact surfaces in the cavity respectively, and a groove is arranged in the middle of the contact side of the cushion block 11 and the part 12.

[0036] Referring to Figure 3 and Figure 4 , the counterweight device comprises an auxiliary magnetic base 14, the auxiliary magnetic base 14 is provided with a center positioning pin 2, the center positioning pin 2 is sleeved with a counterweight magnetic base 15, the counterweight magnetic base 15 is provided with a counterweight block 16, the bottom of the counterweight block 16 is provided with a counterweight positioning pin 1, the bottom of the counterweight positioning pin 1 is provided with a clamping groove, a sink groove guide rail with a size scale line is formed in the counterweight magnetic base 15, the clamping groove of the counterweight positioning pin 1 is sleeved on the sink groove guide rail and can slide on the sink groove guide rail. A magnetic ring is inlaid in the bottom of the auxiliary magnetic base 14, and the magnetic ring is used for adsorbing the first support ring 3 and the second support ring 10. A magnetic strip is arranged in the counterweight magnetic base 15, the magnetic strip is connected with a magnetic adsorption switch, the magnetic adsorption switch can control the magnetism of the magnetic strip and is used for fixing the counterweight magnetic base 15 and the counterweight block 16. Angle scales are arranged on the auxiliary magnetic base 14 and the counterweight magnetic base 15.

[0037] Referring to Figure 5 , Figure 6 and Figure 7A processing method based on a special optical glass block surface optical processing device, comprising the following steps:

[0038] S1, the auxiliary bottom plate 4 is fixed at the bottom of the first support ring 3 and the second support ring 10 respectively, and the grinding block 5 is fixed at the bottom of the auxiliary bottom plate 4;

[0039] S2, the grinding block 5 of the first support ring 3 and the second support ring 10 is attached to the polishing surface of the auxiliary upper clamping tool 13;

[0040] S3, the processing surface of the part 12 is fixed downward in the cavity composed of the first support ring 3 and the second support ring 10, the surface of the part 12 with angle requirement is placed towards the angle measuring square hole of the first support ring 3 and the second support ring 10, the processing surface is adjusted to be connected with the attached stripe of the grinding block 5, the part is fixed by the pad 11, the processing surface of the part 12 is attached to the polishing surface of the auxiliary upper clamping tool 13, and the first support ring 3 and the second support ring 10 are fixed through the connector 9;

[0041] S4, the counterweight device is adsorbed at the top of the first support ring 3 and the second support ring 10, the angle scale 0° position of the auxiliary magnetic base 14 is adjusted to the initial measured angle offset position of the processing surface of the part 12, the angle scale on the corresponding counterweight magnetic adsorption base 15 of the lower side of the counterweight block 16 is aligned with the angle scale 0° position of the auxiliary magnetic base 14, at this time, the magnetic adsorption switch is opened, the auxiliary magnetic base 14, the counterweight magnetic adsorption base 15 and the counterweight block 16 are fixed, and the fixing is completed;

[0042] S5, the processing surface is polished.

[0043] Embodiment:

[0044] Referring to Figure 7 The part 12 is a multi-surface special-shaped body with an external circle size of 50-150mm, the processing surface area of the part 12 is small, and the existing technical method is difficult to realize batch processing.

[0045] The auxiliary upper clamping tool 13 is polished with W14 grinding powder, the upper and lower surfaces are polished to be parallel to 0.001, and the bright polishing is to N=-(3-5).

[0046] After the grinding block 5 is fixed, the bottom surface is polished to be parallel to 0.001 using W14 grinding powder, and the bright polishing is to N<-0.5, and the grinding block 5 must be glass of the same material as the part 12. After the bottom surface of the grinding block 5 and the working surface of the part 12 are placed on the polishing surface of the auxiliary upper clamping tool 13, the part 12 and the grinding block 5 are slightly adjusted so that the contact surface stripes placed on the polishing surface of the auxiliary upper clamping tool 13 are connected with each other and are uniformly distributed around 5 stripes.

[0047] After connector 9 fixes the first support ring 3 and the second support ring 10, the gap between the first support ring 3 and the second support ring 10 is about 2mm-3mm, and the wall thickness of the support ring is 8mm-12mm, which is adjusted according to the size of the parts.

[0048] The ratio of the inner circle diameter of part 12 to the inner diameter of the assembled tooling is 6:7, and a support device of the corresponding size can be configured according to the size of part 12.

[0049] The first support ring 3, the second support ring 10, and the connector 9 are made of stainless steel and have undergone stabilization treatment to increase their durability and stability.

[0050] A 1mm deep groove is cut between the contact surfaces of the pad 11 and the part 12, suspending the working area of ​​the contact surface of the part 12 and preventing clamping and squeezing from damaging the smoothness of the working area. Two through-hole square slots (the specific size can be set according to the size of the part) are evenly distributed on the side walls of the first support ring 3 and the second support ring 10. The side facing the part 12 with the required angle to the bottom surface faces the through-hole square slot for clamping, used for angle measurement during machining. A 30mm wide rectangular platform is milled at the outer square hole of the first support ring 3 and the second support ring 10. The parallelism between the two sets of platforms is 0.0005. During angle measurement, the rectangular platform is placed on the worktable of a goniometer for measurement.

[0051] See Figure 3 , Figure 4 , Figure 8 and Figure 9 The counterweight is attached to the top of the support device via an auxiliary magnetic base 14. A magnetic ring is embedded in the bottom surface of the auxiliary magnetic base 14 for connecting and securing the counterweight and the support device. A central opening in the auxiliary magnetic base 14... A through hole, with DP460 fastening adhesive used to fix one inside the through hole. The center positioning pin 2 is used to position the counterweight magnetic base 15. The counterweight magnetic base 15 has a through-hole square slot of 34×10.2mm in diameter, 5mm from the center, along the radial direction. A graduated guide rail of 34×5mm in diameter and 5mm in height is provided in the middle of the length direction of the square slot. The guide rail is integrated with the counterweight magnetic base 15, and the magnetic attraction is controlled by a magnetic switch. A center opening is located at the bottom of the counterweight block 16. A round hole is provided, and a counterweight positioning pin 1 is fixed inside the hole using DP460 fastening adhesive. The bottom center of the counterweight positioning pin 1 has a 10×5.2mm, 5mm deep recess. This recess fits into the guide rail within the square slot of the counterweight magnetic base 15, allowing the counterweight block 16 to move freely along the guide rail. When the magnetic switch of the counterweight magnetic base 15 is turned on, the counterweight block 16 is attracted to the guide rail via the counterweight positioning pin 1. The counterweight block 16 can be precisely moved to the desired position according to the scale on the guide rail.

[0052] The counterweight magnetic base 15 has a center opening The center positioning pin 2 of the auxiliary magnetic base 14 is inserted into the round hole. The counterweight magnetic base 15 is equipped with a magnetic switch. When the magnetic switch is turned to the OFF position, the magnetic attraction is closed, and the counterweight magnetic base 15 can rotate freely around the center positioning pin 2. When the magnetic switch is turned to the ON position, the magnetic attraction is opened, and the counterweight magnetic base 15 is attracted to the auxiliary magnetic base 14. The counterweight device is fixed and connected to the support device through the auxiliary magnetic base 14.

[0053] Both the auxiliary magnetic base 14 and the counterweight magnetic base 15 are equipped with 360° angle scale lines. The magnetic attraction of the counterweight magnetic base 15 is controlled by the magnetic switch. By rotating the counterweight magnetic base 15, the counterweight device can be adjusted to the required precise position. By adjusting the radial position of the counterweight block 16 on the guide rail, the position of the counterweight device can be precisely controlled.

[0054] The clamped part 12 is placed inside the circular hole of the separator 6. The separator 6 has dimensions 1 (30-35mm), 2 (25-30mm), and the distance 3 (from the outer wall of the clamped fixture to the inner wall of the hole in the separator 6) is 8-15mm. The number of openings in the separator 6 is adjusted according to the specific size of part 12, and the ratio of the inscribed circle diameter of part 12 to the diameter of the circular hole in the separator 6 is approximately 15:25 to 15:29. The dimensions of each component must be matched to achieve the best polishing effect. Furthermore, if the center of the separator 6 is insufficient to create a hole for the part, a through hole with a diameter of 30-60mm should be made at the center position according to the actual allowance.

[0055] The processing methods include clamping methods, polishing methods, and polishing surface angle correction methods, as detailed below:

[0056] Step 1: Clamp part 12 (hereinafter referred to as clamping assembly);

[0057] Step 2: Turn on the ring polisher, set the polishing parameters of the ring polisher, place the separator 6 on the polishing mold 8, and let the separator 6 and the polishing mold 8 break in for about 40 minutes;

[0058] Step three: Place the clamping assembly of step one with the machining surface facing down into the hole of the separator 6, and the machining surface is in contact with the polishing die 8. Add liquid 7 on the polishing die 8 to polish. One separator 6 can be used to polish multiple parts 12 at the same time.

[0059] Step four: During the polishing process, check the surface shape and defect of the working surface of the part 12. Generally, 4-8H can complete the polishing. During the machining process, place the outer circular rectangular platform of the first support ring 3 or the second support ring 10 on the working surface of the angle measuring instrument, and the machining surface of the part 12 faces the light pipe direction of the angle measuring instrument. Measure the included angle of the machining surface of the part 12, and mark the measured value on the corresponding angle offset position of the clamping assembly. Then, adsorb the counterweight device on the top of the supporting device, and pay attention to that the 0 mark line of the auxiliary magnetic base 14 is located directly above the angle offset position. Close the magnetic attraction switch, align the angle mark line of the counterweight magnetic attraction base 15 directly below the counterweight block 16 with the 0 mark line of the auxiliary magnetic base 14, open the magnetic attraction switch, and adsorb the counterweight magnetic attraction base 15 to the auxiliary magnetic base 14 for fixation. Then, according to the initial angle value, adjust the position of the counterweight block 16 on the guide rail, and accurately adjust the position of the counterweight block 16 to achieve the effect of precise angle correction.

[0060] Step five: Place the clamping assembly after the initial angle measurement into the hole of the separator again, and repeat step four after polishing for a certain period of time. Measure the angle of the machining surface again and mark it on the corresponding position. Repeat steps four and five until the angle of the machining surface is corrected to the required range.

[0061] Step six: Take down the clamping assembly, use protective tape to protect the machining surface, take down the part 12, and complete the polishing of the working surface of the part 12.

[0062] The present application is based on the statistical data of the experiments, the polishing of parts of different sizes is carried out, the machining effect of the parts, the ratio of the size of the parts to the gap between the two supporting rings of the clamped tooling, and the ratio of the outer diameter of the clamped tooling to the diameter of the separator hole are recorded, and the best size ratio is determined. For example, the part 12 is a multi-faceted irregular body with an inscribed circle diameter of 60 mm, and when the surface of the part 12 is optically machined, a supporting device with a gap of 2 mm between the supporting rings is selected for machining, which can achieve the effect of stable clamping and no deformation during machining. After the part 12 is clamped, the outer diameter of the supporting device is 86 mm, and the inner hole diameter of the configured separator 6 is between 100-116 mm, which can achieve the effect of rapid correction of the surface shape. When the part 12 is a multi-faceted irregular body with an inscribed circle diameter of 140 mm, a supporting device with a gap of 2.5 mm between the supporting rings is selected for machining, and after clamping, the outer diameter of the supporting device is 166 mm, and the inner hole diameter of the configured separator 6 is between 180-196 mm, which can achieve better machining effect. The machining effect will be better when the size of the different parts, the outer diameter of the clamped tooling and the hole diameter of the matched separator are combined. The size matching of each part assembly and the polishing effect are shown in Table 1.

[0063] Table 1: Corresponding table of size matching of each part assembly and polishing effect

[0064]

[0065] The above process records the size matching table of each part assembly and the corresponding polishing effect. In addition, during the polishing process, a counterweight device is needed to assist in correcting the angle of the machined surface. Through a large number of experiments, the position of the counterweight device is verified to have an effect on the correction speed of the angle. For example, when the angle error is large, moving the counterweight device radially outward can quickly correct the angle to a small error range, and when the angle error is small, moving the counterweight device radially inward can quickly correct the angle to a qualified range without overcorrecting the angle. The effect of the counterweight device at different positions on the correction of the angle is as follows:

[0066] ①The part 12 is a multi-faceted irregular body with an inscribed circle diameter of 70 mm, and the angle accuracy of each face can reach ±0.2″ after machining by this method. After installing the counterweight device, the angle scale 0° position of the auxiliary magnetic base 14 is adjusted to the initial measured angle offset position of the part machining surface, the angle scale on the counterweight magnetic base 15 corresponding to the lower side of the counterweight block 16 is aligned with the angle scale 0° position of the auxiliary magnetic base 14, at this time the magnetic switch is opened, and the counterweight device is fixed. Adjust the counterweight block 16 to move to the outermost side of the guide rail, i.e. the counterweight block 16 moves outward by 24 mm, at this time the polishing is carried out for 20 minutes, and then the parallel angle of the machined surface is measured as 180°0′2″, at this time the counterweight block 16 is adjusted so that the counterweight block 16 moves inward along the guide rail by 14 mm, and then the polishing is carried out for 10 minutes, and the parallel angle of the machined surface is measured as 180°0′0.5″, which meets the requirement of parallel angle.

[0067] ②Part 12 is a multi-faceted irregular shape with an outer circle diameter of 120mm, two opposite faces have been processed, the face shape, defects, parallel angle are all within the range, now the working face perpendicular to the processed face needs to be processed. The processed face is facing the angle measuring square hole position of the support device, the working face is placed downward and installed in the support device. After the initial polishing, the perpendicular angle of the processed face is measured as 90°0'12'', according to the method in ① above, the position of the counterweight device is adjusted, and the position of the counterweight block 16 is adjusted to move outward by 24mm, after polishing for 35min, the perpendicular angle of the processed face is measured again as 90°0'3.47'', at this time, the counterweight block 16 is adjusted so that the counterweight block 16 moves inward along the guide rail by 10mm, and the processed face is polished again for 10min, the parallel angle of the processed face is measured as 90°0'1.5'', which meets the requirement of the perpendicular angle. Through a large number of experiments, the relationship between the position of the counterweight block 16 moving radially and the correction effect of the angle and the processing time is shown in Table 2.

[0068] Table 2 Relationship between position of counterweight block 16, processing time and change amount of corrected angle

[0069]

[0070] In the above process, the support device, the counterweight device and the separator with corresponding proportional sizes are configured according to the size of the part 12, and are used in cooperation, which can not only achieve good polishing effect, but also quickly correct the angle of the processed face.

[0071] The present application provides a method of increasing polishing methods, improving processing efficiency and saving processing cost, so as to achieve good polishing effect. The present application has another great advantage, compared with the existing irregular optical glass block surface polishing method, the polishing equipment of the present application can select two types of equipment, i.e. precision grinding and polishing machine or ring polishing machine, and uses a separator, a single separator can process multiple parts at a time, solves the problem of small irregular optical glass block processing surface difficult to be processed in batches, increases the processing method, improves the processing efficiency and saves the processing cost.

Claims

1. An optical processing device for the surface of an irregularly shaped optical glass block, characterized in that, It includes a first support ring (3) and a second support ring (10). The first support ring (3) and the second support ring (10) are connected by a connector (9) to form a cavity. The cavity formed by the first support ring (3) and the second support ring (10) is used to fix the part (12) and expose the bottom of the part (12). An auxiliary base plate (4) is provided at the bottom of the first support ring (3) and the second support ring (10). A grinding block (5) is provided at the bottom of the auxiliary base plate (4). A counterweight device is provided at the top of the first support ring (3) and the second support ring (10). The counterweight device includes an auxiliary magnetic base (14), a central positioning pin (2) is provided on the auxiliary magnetic base (14), a counterweight magnetic base (15) is sleeved on the central positioning pin (2), a counterweight block (16) is provided on the counterweight block (16), a counterweight positioning pin (1) is provided at the bottom of the counterweight block (16), a slot is provided at the bottom of the counterweight positioning pin (1), a groove is provided on the counterweight magnetic base (15), a recessed guide rail with size scale lines is provided on the counterweight magnetic base (15), the groove of the counterweight positioning pin (1) is inserted into the recessed guide rail, and can slide on the recessed guide rail; A magnetic ring is embedded in the bottom of the auxiliary magnetic base (14), which is used to attract the first support ring (3) and the second support ring (10). The counterweight magnetic base (15) has a magnetic strip inside, which is connected to the magnetic switch; Angle scales are provided on both the auxiliary magnetic base (14) and the counterweight magnetic base (15); Four pads (11) are provided in the cavity formed by the first support ring (3) and the second support ring (10). The four pads (11) are respectively provided on the four contact surfaces in the cavity. A groove is provided in the middle of the contact side between the pad (11) and the part (12).

2. The optical processing device for the surface of an irregularly shaped optical glass block according to claim 1, characterized in that, The grinding block (5) is made of the same material as the part (12).

3. The optical processing device for the surface of an irregularly shaped optical glass block according to claim 1, characterized in that, Four angular square holes are provided on the side walls of the first support ring (3) and the second support ring (10).

4. A processing method for the surface optical processing apparatus for irregularly shaped optical glass blocks according to claim 1, characterized in that, Includes the following steps: S1, fix the auxiliary base plate (4) at the bottom of the first support ring (3) and the second support ring (10) respectively, and fix the grinding block (5) at the bottom of the auxiliary base plate (4); S2, place the grinding blocks (5) of the first support ring (3) and the second support ring (10) on the polishing surface of the auxiliary upper clamping fixture (13); S3, fix the machined surface of part (12) downward in the cavity formed by the first support ring (3) and the second support ring (10), so that the machined surface of part (12) is attached to the polished surface of the auxiliary clamping fixture (13), and fix the first support ring (3) and the second support ring (10) through the connector (9); S4, attach the counterweight device to the top of the first support ring (3) and the second support ring (10) to complete the fixation; adjust the 0° position of the angle scale line of the auxiliary magnetic base (14) to the initial angle offset position of the machining surface of the part (12), align the angle scale line on the counterweight magnetic base (15) directly below the counterweight block (16) with the 0° position of the angle scale line of the auxiliary magnetic base (14), turn on the magnetic switch, and fix the auxiliary magnetic base (14), the counterweight magnetic base (15) and the counterweight block (16). S5, polish the machined surface.

5. The processing method based on an optical processing device for irregularly shaped optical glass blocks according to claim 4, characterized in that, The machined surface of part (12) is placed downward in the cavity of the first support ring (3) and the second support ring (10). The surface of part (12) that has an angle requirement with the machined surface is placed facing the measuring square hole of the first support ring (3) and the second support ring (10). The stripe on the machined surface is adjusted to connect with the stripe on the grinding block (5). The part is fixed with a pad block (11).

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