A stepped glass processing apparatus and processing method

Abstract

This invention discloses a stepped glass processing apparatus and method, relating to the field of optical component processing technology. The stepped glass processing apparatus includes a support body, which is a cylindrical structure with a horizontally positioned top surface. The support body has a first receiving cavity with an upward-facing opening, the first opening at the upper edge of the first receiving cavity being circular. A cover body, which is annular and detachably slidable onto the upper end of the support body, has a sliding portion at its lower end. A second receiving cavity enclosed within the sliding portion has a conical hole protruding inwardly. When the cover body is installed on the support body, the first opening is coaxial with the conical hole. Adhesive joints are provided around the perimeter of the cover body. This invention uses the cover body in conjunction with the support body to position the stepped glass. Under the pressing action of the cover body, the axis of the stepped glass is adjusted to coincide with the vertical axis of the first receiving cavity. Thus, after the stepped glass is ground, a small parallelism difference can be achieved between its upper end face, lower end face, and stepped surface.

Description

Technical Field

[0001] This invention relates to the field of optical component processing technology, and in particular to a stepped glass processing apparatus and processing method. Background Technology

[0002] Anti-halo stepped glass is a type of transparent glass with a black glass layer on its surface. It is primarily used in low-light night vision image intensifiers, serving as the input window to absorb incident and reflected light. In lenses, it acts as an anti-halo, anti-glare lens, and filter, improving image resolution. The blackening layer of anti-halo stepped glass is typically formed by placing a white blank of a special material into a specially designed blackening furnace, heating the glass to near its softening point, and then reducing coloring ions or variable-valence ions (Pb, Bi, Co, Fe, Mn, Cr, V, etc.) with hydrogen. Other methods, such as ion exchange hydrogen reduction and sol-gel coating, can also be used to form a blackening layer of a certain thickness on the end face. The blackened glass appears as... Figure 1 As shown. The blackened glass is sent to the cold processing workshop for grinding and polishing to remove the blackening layer on the upper and lower surfaces, as shown. Figure 2 As shown, the processed upper surface 210 and lower surface 220 become transparent and glossy surfaces, but the blackened and polished surfaces of the connecting surface 230, step surface 240, and cylindrical surface 250 are retained, thus becoming as shown. Figure 2 The final anti-halo stepped glass product shown.

[0003] Anti-halo stepped glass, as a key component in image intensifiers, has high technical requirements. The processing accuracy of its shape and dimensions has a significant impact on the product quality of image intensifiers. Therefore, strict control of the shape and dimensions is required during the optical cold processing.

[0004] Existing methods for processing stepped glass include using adhesive or paraffin bonding to a plate. This involves bonding one end face to a flat plate with adhesive or paraffin, allowing it to cure completely, and then processing the other end face. Once the plate is ground to the required size, the adhesive or paraffin is removed from the workpiece to make it detach. The plate is then flipped over, and the processed end face is used as a reference to apply adhesive and paraffin to the flat plate for fixation. After it has completely cured, the processing of the other end face is completed.

[0005] However, the anti-halo stepped glass requires heating in a sealed container to near the glass's softening point during the blackening process to form a blackening layer and achieve a fire-polished effect. During this heat treatment, the glass undergoes a certain degree of plastic deformation, such as... Figure 3 As shown, after heat treatment, the originally flat and parallel upper surface 310 and lower surface 320 are no longer flat and parallel end faces, and the originally horizontal step surface 240 forms a conical surface that gradually slopes downward from the center to the outside. When the aforementioned processing method is used, it is easy for the parallelism between the upper end face, lower end face, and step surface of the stepped glass to fail to meet the requirements after grinding. Summary of the Invention

[0006] The purpose of this invention is to provide a stepped glass processing apparatus and processing method to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0007] The technical solution adopted to solve the above-mentioned technical problems is as follows:

[0008] This invention provides a stepped glass processing device, including a support body, which is a cylindrical structure with a horizontally positioned top surface. The support body has a first receiving cavity with an upward opening, and the first opening at the upper edge of the first receiving cavity is circular. A cover body is an annular structure, detachably slidable on the upper end of the support body. The lower end wall of the cover body is configured as a sliding part that fits with the support body with a clearance. A second receiving cavity surrounding the inner side of the sliding part is connected to an inwardly protruding conical hole. When the cover body is installed on the support body, the first opening is coaxial with the conical hole. An adhesive interface is provided around the cover body, corresponding to the contact position between the stepped glass and the support body.

[0009] The beneficial effects of this invention are as follows: The cover, in conjunction with the support, positions the stepped glass. Under the pressing action of the cover, the axis of the stepped glass can be gradually adjusted from its tilted state when freely placed to a position coinciding with the vertical axis of the first receiving cavity. Thus, when the stepped surface of the glass is used as a processing reference surface, the tilt caused by unevenness of the stepped surface can be corrected. After subsequent grinding, the upper end face, lower end face, and stepped surface of the stepped glass can achieve a smaller parallelism requirement. Furthermore, the stepped glass makes line contact with the top surface of the support and the conical hole of the cover, thus not affecting the appearance of the glass.

[0010] As a further improvement to the above technical solution, the upper end of the support body and the inner wall of the second receiving cavity are cylindrical. This structure facilitates processing and also helps ensure the coaxial accuracy of the support body and the second receiving cavity of the cover body.

[0011] As a further improvement to the above technical solution, the second receiving cavity and the conical hole are coaxially arranged. In this way, the second receiving cavity and the conical hole can be machined using the same reference, and after the cover is installed on the support, it is easier to ensure the coaxial accuracy of the conical hole of the cover and the first opening of the support.

[0012] As a further improvement to the above technical solution, the adhesive interface is configured as a groove with an upward opening. This configuration is more conducive to the application of adhesive.

[0013] As a further improvement to the above technical solution, a through hole is provided on the wall of the first receiving cavity. The through hole facilitates the entry of adhesive remover into the first receiving cavity for adhesive removal during subsequent adhesive removal operations.

[0014] As a further improvement to the above technical solution, the support body is made of POM material. POM material has a relatively soft hardness, which can better avoid scratching the surface of the stepped glass.

[0015] As a further improvement to the above technical solution, a base is also included, on which the support body is mounted, with the top surface of the support body parallel to the bottom surface of the base. This improves the coaxiality accuracy between the stepped glass and the support body, which is beneficial for controlling the parallelism difference between the upper end face, lower end face, and stepped surface of the stepped glass after grinding.

[0016] As a further improvement to the above technical solution, the base is made of stainless steel. This prevents the base from rusting during use and facilitates maintenance and cleaning.

[0017] Furthermore, the present invention also provides a processing method, which uses the aforementioned stepped glass processing device including a base to fix the stepped glass and then performs grinding processing, including the following steps:

[0018] (1) Place the stepped glass into the support body, with the first opening of the support body abutting the stepped surface, and then put the cover on the support body and move it downward to press the stepped glass until the cover cannot move.

[0019] (2) Apply adhesive to the contact position between the stepped glass and the backing body through the adhesive interface on the cover, and remove the cover after the adhesive has cured;

[0020] (3) Repeat the above steps to fix the other stepped glass on the base;

[0021] (4) Place the whole jig into the milling equipment and grind the lower surface of the stepped glass to obtain the lower end face with the blackened layer removed; then remove the adhesive to make the stepped glass fall off, and then grind the upper surface of the stepped glass with the lower end face as the reference face to obtain the upper end face with the blackened layer removed, and the processing is completed.

[0022] As a further improvement to the above technical solution, before using the stepped glass processing device, the top surface of the support body is made parallel to the bottom surface of the base by grinding. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0024] Figure 1 This is a schematic diagram of the structure of the stepped glass of the present invention after blackening under ideal conditions;

[0025] Figure 2 This is a schematic diagram of the structure of the stepped glass of the present invention after removing the blackening layer under ideal conditions;

[0026] Figure 3 This is a schematic diagram of the structure of the stepped glass of the present invention after blackening in its actual state;

[0027] Figure 4 This is a top view (without cover) of the stepped glass processing apparatus of Embodiment 4 of the present invention;

[0028] Figure 5 yes Figure 4 Sectional view at point AA;

[0029] Figure 6 yes Figure 5 Schematic diagram of the structure at point B;

[0030] Figure 7 This is a schematic diagram of the structure of the cover body according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of another cover structure according to an embodiment of the present invention;

[0032] Figure 9 yes Figure 6 A schematic diagram of the structure after the cover and stepped glass are placed. Detailed Implementation

[0033] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0034] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0035] In the description of this invention, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0036] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0037] Example 1:

[0038] Reference Figures 4-6 The present invention describes a stepped glass processing apparatus according to Embodiment 1, which includes a support body 430 and a cover body 510 slidably disposed at the upper end of the support body 430 in a vertical direction. The cover body 510 is detachable in a vertical direction. During production, the stepped glass 100 to be processed is placed in the support body 430 and positioned by the cover body 510. After positioning, the stepped glass 100 is bonded and fixed to the support body 430. Then, the cover body 510 is removed for subsequent processing to remove the blackening layer of the upper surface 310 and the lower surface 320.

[0039] Specifically, such as Figure 1 As shown, the blackened stepped glass 100 includes a small end 101 and a large end 102, with a stepped surface 240 between the small end 101 and the large end 102. Figure 4 and Figure 5 As shown, the support body 430 is configured as a cylindrical column structure. The column has a first receiving cavity 432 with its opening facing upwards. The first receiving cavity 432 is a cylindrical groove. In order to ensure the parallelism between the upper end face 210, the lower end face 220, and the step surface 240 of the stepped glass 100 after grinding, the top surface of the column is set horizontally, that is, the top surface of the wall of the first receiving cavity 432 is set horizontally. It can be understood that the first receiving cavity 432 can also be, for example, a conical groove that is larger at the top and smaller at the bottom, as long as it can accommodate the small end 101 of the stepped glass 100, and the first opening 433 on the upper edge of the first receiving cavity 432 is circular. Setting the first opening 433 as circular is beneficial for the subsequent alignment of the axis of the stepped glass 100 with the axis of the first receiving cavity 432.

[0040] To avoid scratching the glass surface of the steps and to meet precision requirements, the support body 430 in this embodiment is preferably made of POM material. POM material is relatively soft, easy to repair, and not prone to rust. In other embodiments, the support body 430 may also be made of a hard material with a composite or coating of other soft materials.

[0041] When the stepped glass 100 is placed in the support body 430, its small end 101 is placed downward in the first receiving cavity 432, and the stepped surface 240 faces the top surface of the wall of the first receiving cavity 432. Since the stepped glass 100 has been heat-treated, the stepped surface 240 forms a conical surface that gradually slopes downward from the center to the outer surface. Therefore, the first opening 433 of the first receiving cavity 432 abuts against the stepped surface 240. When the stepped glass 100 is placed naturally, its axis may be tilted. If the stepped glass 100 is positioned in the support body 430 in a tilted state, it will affect the parallelism difference between the upper end surface 210, the lower end surface 220, and the stepped surface 240 after the stepped glass is ground.

[0042] Therefore, the cover 510 and the support 430 are used to jointly position the stepped glass 100, such as... Figure 7 As shown, the cover 510 has an annular structure, and the lower end wall of the cover 510 is configured as a sliding part. It can be understood that the sliding part can be a continuous, closed circumferential wall 514 located at the lower end of the cover 510, or it can be... Figure 8 The diagram shows several spaced vertical support walls 515 located at the lower end of the cover 510. This sliding part slides vertically against the abutment 430 with a clearance fit. Specifically, the lower end of the cover 510 has a second receiving cavity along the axial direction. The wall of the second receiving cavity forms the sliding part. The inner wall 512 of the second receiving cavity is a cylindrical surface, which is clearance-fitted with the outer wall of the abutment 430. For example, the inner diameter of the inner wall 512 is 0.05 mm larger than the outer diameter of the abutment 430, allowing the inner wall 512 to slide up and down on the cylindrical outer wall of the abutment 430. Behind the inner wall 512 is an inwardly protruding annular inclined surface 511 adjacent to it. The inclined surface 511 is formed as a conical hole protruding inwards, and this conical hole communicates with the second receiving cavity.

[0043] When using, such as Figure 9As shown, after the stepped glass 100 is placed on the support body 430, the inner wall 512 of the cover body 510 is fitted onto the outer wall of the support body 430. At this time, the conical hole of the cover body 510 and the first opening 433 are set to be coaxial. The outer diameter of the large end 102 of the stepped glass 100 is smaller than the inner diameter of the conical hole of the cover body 510. Under the pressing action of the inclined surface 511, the stepped glass 100 is fixed between the cover body 510 and the support body 430. Due to the pressing contact of the inclined surface 511 on the edge of the lower surface 320 of the stepped glass 100, the axis of the stepped glass 100 can be gradually adjusted from the inclined state when it is freely placed to the position that coincides with the axis of the first receiving cavity 432, that is, the axis of the stepped glass 100 is gradually adjusted towards the vertical direction. In this way, during the subsequent processing of the stepped glass 100, after grinding, a small parallel difference can be achieved between its upper end surface 210, lower end surface 220, and stepped surface 240. It is understandable that the axis of the stepped glass 100 gradually changes from an inclined state to an upright state that can coincide with the axis of the first receiving cavity 432 because the stepped glass 100 is subjected to the combined action of two coaxially arranged positioning rings in its height direction. One of these positioning rings is the first opening 433 of the first receiving cavity 432, and the other is the inclined surface 511. As the inclined surface 511 gradually contacts the edge of the lower surface 320 of the stepped glass 100, the cover 510 drives the stepped glass 100 to move towards the center position. That is, the center of the lower surface 320 will gradually move closer to the axis of the inclined surface 511, so that the axis of the stepped glass 100 can be gradually adjusted towards the upright direction.

[0044] In addition, the stepped glass 100 is in line contact with the top surface of the backrest 430 and the conical hole of the cover 510, and will not affect the appearance of the glass.

[0045] Furthermore, the second receiving cavity of the cover 510 is also coaxially arranged with the conical hole, so that the second receiving cavity and the conical hole can be processed with the same reference during processing. After the cover 510 is installed on the backing body 430, it is easier to ensure the coaxial accuracy of the conical hole and the first opening 433 of the cover 510.

[0046] The cover 510 is also provided with multiple adhesive joints 513 around its perimeter. These adhesive joints 513 are spaced apart circumferentially around the cover 510, and are positioned corresponding to the contact points between the stepped surface 240 of the stepped glass 100 and the abutment 430. Figure 7As shown, the adhesive interface 513 is an upward-opening groove, which facilitates the application of adhesive. In this embodiment, optical adhesive is used. The optical adhesive can be applied to the contact surfaces of the stepped surface 240 and the support body 430 through the adhesive interface 513. After a few seconds, the adhesive initially cures, and the stepped glass 100 and the support body 430 are pre-bonded. At this point, the cover 510 can be removed, and the stepped glass 100 bonded to the support body 430 can proceed to subsequent processing steps. In some other embodiments, only one adhesive interface 513 may be provided. Obviously, providing multiple adhesive interfaces 513 is more beneficial for the bonding and fixation of the stepped glass 100 and the support body 430.

[0047] The cavity wall of the first receiving cavity 432 of the body 430 is also provided with a through hole 434. The through hole facilitates the removal of adhesive by allowing the adhesive remover to enter the first receiving cavity 432 during subsequent adhesive removal operations.

[0048] Example 2:

[0049] In Embodiment 1, the support body 430 is a cylindrical column structure. Embodiment 2 differs from Embodiment 1 in that the support body 430 in Embodiment 2 only has a cylindrical upper end. It can be understood that as long as the support body 430 is a cylindrical structure within the sliding range of the cover 510, the cover 510 can slide downwards on the support body 430 until the stepped glass 100 is securely fastened between the cover 510 and the support body 430.

[0050] Example 3:

[0051] The difference between Embodiment 3 and Embodiment 1 is that the support 430 in Embodiment 3 can also be a columnar structure of other shapes, such as an upright square prism, a regular pentagonal prism, or other upright regular prism structures. Correspondingly, the inner wall 512 of the cover 510 also forms the same shape as the outer wall of the support 430, as long as the inner wall 512 of the cover 510 can slide up and down on the support 430 with a clearance fit, and the first opening 433 of the support 430 and the conical hole of the cover 510 are coaxial. In this way, when the cover 510 slides down, it can drive the axis of the stepped glass 100 from the tilted state when it is freely placed to the position that coincides with the axis of the first receiving cavity 432. It can be understood that only the upper end of the prism can be set as an upright regular prism structure.

[0052] Example 4:

[0053] The stepped glass processing apparatus of the present invention further includes a base, on which a support body 430 is mounted. The base includes a pad 410 and a support plate 420. The pad 410 has an annular structure, and the support plate 420 has a groove for positioning the support body 430. Figure 4 and Figure 5As shown, the pad 410 and the support plate 420 are circular, and the grooves on the support plate 420 are arranged in a ring. However, this embodiment does not limit the shape of the pad 410 and the support plate 420, nor does it limit the arrangement of the grooves on the support plate 420. The pad 410 and the support plate 420 can also be other shapes, such as square, and the grooves can also be arranged in other ways, such as in a regular horizontal or vertical arrangement. In this embodiment, as... Figure 6 As shown, the support plate 420 is provided with a first threaded hole 421 and a second threaded hole 422, the backing body 430 is provided with a base plate, the base plate is provided with a first countersunk hole 431 and a first threaded hole 421 connected by fasteners, thereby fixing the backing body 430 to the support plate 420; the pad 410 is provided with a second countersunk hole 411 and a second threaded hole 422, which are fixedly connected to the support plate 420 by fasteners.

[0054] After the pad 410, support plate 420, and backing body 430 are connected, the top surface of the backing body 430 is machined to be parallel to the bottom surface of the base. Specifically, before using the stepped glass processing device, it is dressed on a milling machine using an 80# diamond grinding wheel. First, using the pad 410 as a reference, the top surface of the backing body 430 is ground to ensure that each backing body is ground. Then, it is flipped over, and the bottom surface of the pad 410 is milled using the ground backing body top surface as a reference to ensure that it is completely ground. Finally, in order to improve the smoothness of the top surface of the bonded backing body and the accuracy of the stepped glass processing device, the dressed pad 410 is used again as a reference surface, and a 240# diamond grinding wheel is used for a second milling of the top surface of the backing body 430. During this milling process, the feed rate and grinding amount need to be controlled. Generally, the grinding amount is within 0.1mm, and the feed rate is less than 0.02mm / min.

[0055] Furthermore, the support plate 420 and the pad 410 are made of rust-proof materials, such as 304 stainless steel and 316 stainless steel, which can prevent the base from rusting during use and facilitate maintenance and cleaning.

[0056] Example 5:

[0057] Based on the stepped glass processing apparatus described in the above embodiments, a method for processing stepped glass is also provided, specifically including the following steps:

[0058] (1) Place the stepped glass 100 onto the stepped glass processing device consisting of the support body 430 and the base, so that the first opening 433 of the support body 430 abuts against the stepped surface 240, and then put the cover body 510 on the upper end of the support body 430, slide the cover body 510 down and press it against the stepped glass 100 until the cover body 510 cannot move.

[0059] (2) Apply adhesive to the contact position between the step surface 240 of the step glass 100 and the backing body 430 through the adhesive interface 513 on the cover 510, so that the step glass 100 is bonded to the backing body 430. After the adhesive has cured, remove the cover 510.

[0060] Specifically, optical adhesive is used as the bonding agent. After waiting for several seconds, the adhesive is initially cured, and the stepped glass 100 and the bonding body 430 are pre-bonded.

[0061] (3) Repeat the above steps to fix the upper plate of the other stepped glass on the base.

[0062] (4) Place the entire jig into the milling equipment for grinding. Specifically, place the entire jig into the milling equipment and use a 400# resin grinding wheel to grind the lower surface 320 of the stepped glass to obtain the lower end surface 220 with the blackened layer removed. After completion, remove the adhesive to remove all the stepped glass 100 from the support body 430. Then, attach the lower end surface 220 of the stepped glass 100 to another plate. At this time, use the lower end surface 220 as the reference surface to grind the upper surface 310 to obtain the upper end surface 210 with the blackened layer removed. Finally, remove the stepped glass from the milling equipment. Thus, the removal of the blackened layer on the upper and lower surfaces of the stepped glass is completed.

[0063] In step (4), when the adhesive is optical adhesive, the fixture must be placed into the milling equipment for processing only after the adhesive has fully cured. The method for fully curing the optical adhesive is as follows: place the entire tray of fixtures in an oven and bake at 60°C for 30 minutes to ensure that the adhesive is fully cured so that the stepped glass and the support body are completely and reliably bonded. It should be noted that this embodiment does not specifically limit the baking parameters; this embodiment is only an example.

[0064] In addition, before step (1), the top surface of the support body 430 is made parallel to the bottom surface of the base by grinding. This can better control the parallelism difference between the upper end surface 210, the lower end surface 220 and the step surface 240 of the stepped glass 100 after grinding. Specifically, before using the stepped glass processing device, the device is dressed on a milling machine using an 80# diamond grinding wheel. First, using the pad 410 as a reference, the top surface of the support body 430 is ground to ensure that each support body is ground. Then, the pad 410 is flipped over, and the bottom surface of the pad 410 is milled using the ground support body top surface as a reference to ensure that it is completely ground. Finally, in order to improve the smoothness of the top surface of the bonding support body and the accuracy of the stepped glass processing device, the dressed pad 410 is used again as a reference surface, and a 240# diamond grinding wheel is used to perform a second milling of the top surface of the support body 430. During this milling process, the feed rate and grinding amount need to be controlled. Preferably, the grinding amount is within 0.1mm, and the feed rate is less than 0.02mm / min.

[0065] Using the above processing method, the parallelism difference between the upper end face 210, the lower end face 220, and the step surface 240 of the stepped glass 100 after grinding can be controlled within 0.01mm.

[0066] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A stepped glass processing apparatus characterized by comprising: The application relates to a step glass fixing device, which comprises the following parts: a supporting body (430) in a columnar structure, the top surface of which is horizontally arranged and is arranged as a supporting surface of a step surface (240) of a step glass (100), the supporting body (430) is provided with a first accommodating cavity (432) with an upward opening, and a first opening (433) at the upper edge of the first accommodating cavity (432) is circular; a cover body (510) in a ring structure, which is detachably arranged at the upper end of the supporting body (430), the lower end of the cover body (510) is provided with a second accommodating cavity in an axial direction, the wall part of the second accommodating cavity constitutes a sliding part, the sliding part is in clearance fit with the outer wall of the supporting body (430), the rear of the second accommodating cavity is communicated with a tapered hole which is protruded to the inside, the tapered hole has a ring-shaped inclined surface (511), when the cover body (510) is arranged on the supporting body (430), the first opening (433) is coaxial with the tapered hole, and the inclined surface (511) is arranged to abut against the edge of a lower surface (320) of the step glass (100); the periphery of the cover body (510) is provided with a bonding port (513), and the bonding port (513) is arranged at the position corresponding to the contact position between the step glass (100) and the supporting body (430).

2. The stepped glass processing apparatus of claim 1, wherein: the upper end of the supporting body (430) and the inner wall (512) of the second accommodating cavity are in a cylindrical shape.

3. The stepped glass processing apparatus of claim 2, wherein: the second accommodating cavity and the tapered hole are coaxially arranged.

4. The stepped glass processing apparatus of claim 1, wherein: the bonding port (513) is arranged as a groove which is open upward.

5. The stepped glass processing apparatus of claim 1, wherein: a through hole (434) is arranged on the cavity wall of the first accommodating cavity (432).

6. The stepped glass processing apparatus of claim 1, wherein: the supporting body (430) is made of POM material.

7. The stepped glass processing apparatus according to any one of claims 1 to 6, characterized by: a base is further arranged, the supporting body (430) is arranged on the base, and the top surface of the supporting body (430) is parallel to the bottom surface of the base.

8. The stepped glass processing apparatus of claim 7, wherein: the base is made of stainless steel material.

9. A method of processing, characterized by: claim 7 8. The step glass processing apparatus of any one of claims 1 to 7, wherein the step glass is fixed and ground, comprising the steps of: (1) the step glass (100) is arranged in the supporting body (430), the first opening (433) of the supporting body (430) abuts against the step surface (240), then the cover body (510) is sleeved on the supporting body (430) and is moved downward to press the step glass (100) until the cover body (510) cannot be moved; (2) the bonding port (513) on the cover body (510) is used to apply a bonding agent to the contact position between the step glass (100) and the supporting body (430), the cover body (510) is removed after the bonding agent is solidified; (3) the above steps are repeated to fix other step glasses on the base; (4) the whole fixture is arranged in a milling and grinding device, the lower surface (320) of the step glass (100) is ground to obtain a lower end surface (220) from which a blackening layer is removed, then the step glass (100) is removed by removing the bonding agent, and the upper surface (310) of the step glass (100) is ground based on the lower end surface (220) to obtain an upper end surface (210) from which a blackening layer is removed, and the processing is completed.

10. The method of claim 9, wherein: The step glass processing device uses before, through the grinding processing makes the top surface of the body (430) and the bottom surface of the base parallel.

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