A machining device and machining method for a corner cube prism

Abstract

The application discloses a machining device and a machining method of a corner cube prism. The corner cube prism has a first machining surface, a second machining surface and a third machining surface. The corner cube prism has a special structure. A tooling assembly is designed according to the shape and size of the corner cube prism. The tooling assembly comprises a first tooling. The first tooling is provided with a containing groove. The containing groove can be used for inlaying and clamping the corner cube prism. The first tooling has a first side wall, a second side wall and a third side wall which are perpendicular to each other. After the corner cube prism is placed into the containing groove, the first machining surface, the second machining surface and the third machining surface are coplanar with the first side wall, the second side wall and the third side wall respectively. Therefore, the first machining surface, the second machining surface and the third machining surface can be machined by using a conventional clamp to clamp the first tooling. The problems that the special-structure corner cube prism is inconvenient to clamp and inconvenient to machine are solved. The difficulty in the optical machining process of the corner cube prism is reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of optical part processing, in particular to a processing device and a processing method of a corner cube prism. BACKGROUND

[0002] The corner cube prism is a prism with a special structure, which is long and thin, difficult to clamp, and has mutually orthogonal processing surfaces and small processable area. The high requirement for beam deflection angle, strict control of surface shape and surface defects increase the difficulty of optical processing of the corner cube prism.

[0003] In general optical processing, auxiliary blocks are spliced around the processing surface to increase the processable area. After grinding, the prism is clamped on a clamping tool that can be fixed and adjusted horizontally for polishing. However, due to the special structure of the corner cube prism, it is difficult to splice traditional auxiliary blocks and grind, and it is also difficult to use general clamping tools to stably fix the corner cube prism, so this processing method cannot be used for processing. SUMMARY

[0004] In view of the above defects or deficiencies in the prior art, it is desirable to provide a processing device for a corner cube prism.

[0005] In a first aspect, the present application provides a processing device for a corner cube prism, the corner cube prism comprising a quadrangular prism structure having opposite first and second inclined surfaces, the first inclined surface being a first processing surface, the corner cube prism further comprising a triangular prism structure having a circumferential first, second and third flat surfaces, the third flat surface being fixedly connected to the second inclined surface, the first, second and third flat surfaces being orthogonal to each other, the first and second flat surfaces being second and third processing surfaces, respectively.

[0006] The processing device comprises:

[0007] A tool assembly comprising a first tool having first, second and third side walls perpendicular and intersecting with each other, the first tool having a receiving groove for inlaying and clamping the corner cube prism.

[0008] When the corner cube prism is clamped into the receiving groove, the first inclined surface and the first side wall are on the same side, the first flat surface and the second side wall are on the same side, and the second flat surface and the third side wall are on the same side.

[0009] According to the technical scheme provided in the embodiment of the present application, the tool assembly further comprises a second tool, the second tool can be clamped into the accommodating groove and abut against the corner prism, the second tool and the first tool cooperate to clamp and fix the corner prism, and the second tool has the same thickness as the width of the accommodating groove;

[0010] The second tool has a fourth side wall, a fifth side wall and a sixth side wall which are perpendicular to each other, after the second tool is clamped into the accommodating groove, the fourth side wall is coplanar with the first side wall, the fifth side wall is coplanar with the second side wall, and the sixth side wall is coplanar with the third side wall.

[0011] According to the technical scheme provided in the embodiment of the present application, the quadrangular frustum structure further has a fourth plane and a fifth plane which are opposite to each other, the triangular prism structure further has a sixth plane and a seventh plane which are opposite to each other, the fourth plane is coplanar with the sixth plane to form an abutting surface one, and the fifth plane is coplanar with the seventh plane to form an abutting surface two.

[0012] After the corner prism and the second tool are clamped into the accommodating groove, the abutting surface one abuts against the first tool, and the abutting surface two abuts against the second tool.

[0013] According to the technical scheme provided in the embodiment of the present application, the width of the accommodating groove is the same as the thickness of the corner prism, the starting point of the accommodating groove is located on the edge where the second side wall and the third side wall intersect, and the ending point of the accommodating groove is located on the diagonal line of the first side wall, which is the line connecting the point where the first side wall, the second side wall and the third side wall intersect and the opposite point on the first side wall.

[0014] According to the technical scheme provided in the embodiment of the present application, the accommodating groove is machined on the first tool by a machining center, specifically:

[0015] The length of the abutting surface one is obtained, the lengths of two legs of an isosceles right triangle formed by the length as a hypotenuse are calculated, the starting point and the ending point of the accommodating groove are marked on the edge where the second side wall and the third side wall intersect and the diagonal line of the first side wall respectively, and the slotting operation is performed along the line connecting the starting point and the ending point by the machining center.

[0016] In the second aspect, the present application provides a machining method, which applies the machining device, and the machining method comprises:

[0017] The first tool and the second tool are made according to the size and shape of the corner prism, and the accommodating groove is opened on the first tool, so as to ensure that the width of the accommodating groove is the same as the thickness of the corner prism and the thickness of the second tool.

[0018] The pyramid prism and the second tool are clamped in sequence, the abutting surface one abuts against the first tool, and the abutting surface two abuts against the second tool, thereby forming an assembly;

[0019] The linear size of the required pyramid prism is marked on the assembly according to the linear size of the required pyramid prism, and the first processing surface, the second processing surface and the third processing surface are respectively ground and polished, so as to ensure that the first processing surface, the second processing surface and the third processing surface are mutually orthogonal.

[0020] The assembly is disassembled, the processed pyramid prism is taken out and cleaned, and the optical index and the size of the pyramid prism are inspected, and the qualified product is delivered.

[0021] According to the technical scheme provided by the embodiment of the application, after the pyramid prism is clamped into the accommodating groove, the first inclined surface and the first side wall of the first tool are on the same side and coplanar, the first plane and the second side wall are on the same side and coplanar, the second plane and the third side wall are on the same side and coplanar, the abutting surface one abuts against the first tool, and the pyramid prism and the first tool are bonded by an adhesive.

[0022] According to the technical scheme provided by the embodiment of the application, after the pyramid prism is clamped into the accommodating groove, the first inclined surface and the first side wall of the first tool are on the same side and coplanar, the first plane and the second side wall are on the same side and coplanar, the second plane and the third side wall are on the same side and coplanar, the abutting surface one abuts against the first tool, and the pyramid prism and the first tool are bonded by an adhesive.

[0023] According to the technical scheme provided by the embodiment of the application, the linear size of the required pyramid prism is marked on the assembly after clamping, and then the assembly is fixed on a grinding and polishing device to grind and polish the side walls where the first processing surface, the second processing surface and the third processing surface are located, so as to facilitate processing while ensuring that the first processing surface, the second processing surface and the third processing surface are mutually orthogonal, and the size and optical index of the processed pyramid prism can meet the processing requirements.

[0024] In summary, the technical scheme specifically discloses a processing device and a processing method for a pyramid prism, the pyramid prism has a special structure and is composed of a four-prism table structure and a three-prism structure, and the pyramid prism has a first processing surface, a second processing surface and a third processing surface to be processed.

[0025] The processing device comprises a tool assembly having a first tool, the first tool having first, second and third mutually orthogonal side walls and a receiving groove capable of inlaying and clamping a corner cube prism, after the corner cube prism is clamped into the receiving groove, the first processing surface is coplanar with the first side wall, the second processing surface is coplanar with the second side wall, and the third processing surface is coplanar with the third side wall;

[0026] The tool assembly further comprises a second tool capable of being clamped into the receiving groove, and the second tool cooperates with the first tool to fix and clamp the corner cube prism;

[0027] The processing method comprises designing the tool assembly according to the structure and size of the corner cube prism, so as to ensure that the tool assembly can inlay and clamp the corner cube prism with special structure shape to form an assembly, so that the surface corresponding to the first processing surface, the second processing surface and the third processing surface of the assembly is in contact with the grinding and polishing equipment, the processable area of the first processing surface, the second processing surface and the third processing surface is increased, and the clamping area of the corner cube prism is expanded, thereby solving the problem that the corner cube prism is difficult to clamp and inconvenient to process in the prior art. The tool assembly of the present application is designed according to the inherent shape and size of the corner cube prism to be processed, which facilitates clamping of the corner cube prism and makes processing of the first processing surface, the second processing surface and the third processing surface more convenient, thereby reducing the difficulty in the optical processing of the corner cube prism. BRIEF DESCRIPTION OF DRAWINGS

[0028] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments made with reference to the accompanying drawings:

[0029] Figure 1 It is a corner cube prism structure diagram.

[0030] Figure 2 It is a side view of a corner cube prism.

[0031] Figure 3 It is a first tool structure diagram.

[0032] Figure 4 It is a second tool structure diagram.

[0033] Figure 5 It is an assembly structure diagram.

[0034] The figure labels: 1, corner cube prism; 2, quadrangular frustum structure; 3, first inclined surface; 4, triangular prism structure; 5, first plane; 6, second plane; 7, first tooling; 8, first side wall; 9, second side wall; 10, third side wall; 11, containing groove; 12, second tooling; 13, fourth side wall; 14, fifth side wall; 15, sixth side wall; 16, fourth plane; 17, fifth plane; 18, sixth plane; 19, seventh plane; 20, abutting surface one; 21, abutting surface two. DETAILED DESCRIPTION

[0035] The application will be further described below in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, and are not a limitation on the application. In addition, it should be noted that only the parts related to the application are shown in the drawings for ease of description.

[0036] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and embodiments.

[0037] Embodiment one

[0038] Please refer to Figure 1 A processing device of a corner cube prism, the corner cube prism 1 is composed of a quadrangular frustum structure 2 and a triangular prism structure 4 integrally formed, specifically, the quadrangular frustum structure 2 has opposite first inclined surface 3 and second inclined surface, the first inclined surface 3 is the first processing surface; the triangular prism structure 4 has first plane 5, second plane 6 and third plane in the circumferential direction, the third plane and the second inclined surface are fixedly connected, and the first plane 5 and the second plane 6 are orthogonal, the first plane 5 and the second plane 6 are the second processing surface and the third processing surface respectively; the first inclined surface 3, the first plane 5 and the second plane 6 are orthogonal to each other;

[0039] The quadrangular frustum structure 2 also has opposite fourth plane 16 and fifth plane 17, the triangular prism structure 4 also has opposite sixth plane 18 and seventh plane 19, the fourth plane 16 and the sixth plane 18 are coplanar, forming abutting surface one 20, the fifth plane 17 and the seventh plane 19 are coplanar, forming abutting surface two 21; and the angle between the abutting surface two 21 and the first inclined surface 3 is 45°, the angle between the abutting surface two 21 and the intersection line of the first plane 5 and the second plane 6 is 45°.

[0040] Due to the irregular structure of the corner cube prism 1, it is inconvenient to clamp and fix it by means of an auxiliary block, so a corresponding clamping tool needs to be designed according to the special shape of the corner cube prism 1 to achieve stable clamping of the corner cube prism 1, so as to facilitate grinding and polishing of the first, second and third processing surfaces on the corner cube prism 1 to achieve the required optical indicators of the first, second and third processing surfaces.

[0041] The processing device comprises a tool assembly, and the tool assembly comprises a first tool 7 which is a cube structure having first, second and third side walls 8, 9 and 10 which are perpendicular to and intersect with each other, and a receiving groove 11 is formed in the first tool 7 for inlay clamping the corner cube prism 1; the width of the receiving groove 11 is the same as the thickness of the corner cube prism 1;

[0042] After the corner cube prism 1 is clamped into the receiving groove 11, the first inclined surface 3 is coplanar with the first side wall 8, the first flat surface 5 is coplanar with the second side wall 9, and the second flat surface 6 is coplanar with the third side wall 10, i.e., the first processing surface is coplanar with the first side wall 8, the second processing surface is coplanar with the second side wall 9, and the third processing surface is coplanar with the third side wall 10.

[0043] The tool assembly further comprises a second tool 12 which can be clamped into the receiving groove 11 and abut against the corner cube prism 1, and the second tool 12 cooperates with the first tool 7 to clamp and fix the corner cube prism 1; the thickness of the second tool 12 is the same as the width of the receiving groove 11;

[0044] The second tool 12 has fourth, fifth and sixth side walls 13, 14 and 15 which are perpendicular to each other, and after the second tool 12 is clamped into the receiving groove 11, the fourth side wall 13 is coplanar with the first side wall 8, the fifth side wall 14 is coplanar with the second side wall 9, and the sixth side wall 15 is coplanar with the third side wall 10, and the second tool 12 abuts against the abutting surface two 21 of the corner cube prism 1 to form a combined body;

[0045] At this time, the fourth side wall 13, the first side wall 8 and the first processing surface are coplanar, the fifth side wall 14, the second side wall 9 and the second processing surface are coplanar, and the sixth side wall 15, the third side wall 10 and the third processing surface are coplanar, and during processing, the side walls corresponding to each processing surface of the combined body are in contact with the grinding and polishing equipment, thereby increasing the processing area of each processing surface; the regular shape of the combined body facilitates clamping by a conventional clamp, thereby facilitating processing of the first, second and third processing surfaces respectively, and overcoming the inconvenience of clamping and processing of the corner cube prism 1; the conventional clamp is a clamp capable of clamping a workpiece in the circumferential direction, which is a prior art and will not be described again.

[0046] The accommodating groove 11 is opened by a machining center. The first tooling 7 without the accommodating groove 11 is placed on the machining center workbench, and the start point and the end point positions are set, that is, the accommodating groove 11 can be machined. The start point is located on the edge where the second side wall 9 and the third side wall 10 intersect, and the end point is located on the diagonal line of the first side wall 8, which is the line connecting the point where the first side wall 8, the second side wall 9 and the third side wall 10 intersect and the opposite point on the first side wall 8;

[0047] Specifically, the length of the abutting surface one 20 is obtained, the lengths of two legs of an isosceles right triangle formed by the length as a hypotenuse are calculated, and the start point and the end point positions are marked on the edge where the second side wall 9 and the third side wall 10 intersect and on the diagonal line of the first side wall 8 respectively. The lengths of the two legs are taken as the initial point at the point where the first side wall 8, the second side wall 9 and the third side wall 10 intersect, and the direction away from the initial point is taken as the positive direction.

[0048] Specifically, the length of the abutting surface one 20 is set as L, and the lengths of two legs of an isosceles right triangle formed by L as a hypotenuse are both Lcos45°.

[0049] For the second tooling 12, the corner cube prism 1 can be placed on the second tooling 12, so that the fourth side wall 13 is coplanar with the first inclined surface 3, and the intersection line of the fifth side wall 14 and the sixth side wall 15 is coplanar with the intersection line of the first plane 5 and the second plane 6. The second tooling 12 can be designed by marking along the abutting surface two 21 on the second tooling 12 and then machining.

[0050] The first tooling 7 and the second tooling 12 are both made of glass material.

[0051] Embodiment two

[0052] A machining method is provided, which uses the machining device provided in the embodiment one. The machining method comprises:

[0053] According to the size of the corner cube prism 1, the first tooling 7 and the second tooling are selected to be made of glass material. The start point and the end point positions are marked on the first tooling 7, and the accommodating groove 11 is opened by a machining center.

[0054] The corner cube prism 1 is placed into the accommodating groove 11, the abutting surface one 20 abuts against the first tooling 7, so that the first inclined surface 3 is coplanar with the first side wall 8, the first plane 5 is coplanar with the second side wall 9, and the second plane 6 is coplanar with the third side wall 10. Then, the first tooling 7 and the corner cube prism 1 are bonded by using an adhesive.

[0055] The second tooling 12 is placed into the accommodating groove 11, so that the abutting surface two 21 of the corner cube prism 1 abuts against the second tooling 12, the fourth side wall 13 is coplanar with the first side wall 8, the fifth side wall 14 is coplanar with the second side wall 9, the sixth side wall 15 is coplanar with the third side wall 10, and the second tooling 12 and the corner cube prism 1 are bonded with the first tooling 7 using an adhesive, thus forming an assembly;

[0056] According to the linear size of the corner cube prism 1 required, markings are made on the surface of the assembly, and the first side wall 8, the second side wall 9 and the third side wall 10 of the assembly are polished respectively using a polishing device.

[0057] After polishing, the adhesive is heated and melted, the assembly is disassembled, the corner cube prism 1 is taken out and cleaned, and the processed corner cube prism 1 is inspected to determine whether it meets the required size and optical indicators.

[0058] Specifically, the linear size of the corner cube prism 1 is converted into the external size of the assembly, and markings are made on the surface of the assembly, so that the processed corner cube prism 1 can meet the required size requirements;

[0059] Specifically, according to the marked external size and the surface quality requirements of the corner cube prism 1, appropriate diamond abrasives are selected for surface removal, and two kinds of diamond abrasives with different particle sizes are generally selected for grinding and removal. During the grinding process, the size of the corner cube prism 1 is continuously measured to ensure that it meets the required size.

[0060] Specifically, the first processing surface, the second processing surface and the third processing surface are sequentially upward and fixed, and the first processing surface, the second processing surface and the third processing surface are sequentially polished according to the processing requirements. During the polishing process, the angle, surface shape, size and other requirements of the first processing surface, the second processing surface and the third processing surface are measured in real time to ensure that the requirements are met.

[0061] Specifically, after polishing, the adhesive is melted by high-temperature heating, the second tooling 12 and the corner cube prism 1 are sequentially disassembled from the first tooling 7, the processed corner cube prism 1 is taken out for cleaning and inspection of its optical indicators and external size to determine whether it meets the technical requirements, and the corner cube prism 1 that meets the inspection requirements is delivered.

[0062] The type of the adhesive is, for example, paraffin;

[0063] The assembly is fixed on the workbench of the polishing device by a conventional clamp, the conventional clamp clamps the assembly circumferentially to ensure that the first processing surface, the second processing surface and the third processing surface are sequentially upward, thereby facilitating the polishing of the first processing surface, the second processing surface and the third processing surface.

[0064] The first tool 7 and the second tool 12 are designed according to the shape and size of the corner cube prism 1, so that the corner cube prism 1 can be inlaid and clamped. Not only the corner cube prism 1 with special shape and structure can be clamped, but also each processing surface of the corner cube prism 1 can be optically processed, the optical processing area is expanded, and the subsequent shape, position and size inspection is facilitated. The grinding and polishing equipment is used to grind the processing surface, so as to achieve the purpose of controlling the thickness and orthogonal angle of the processing surface, the surface of the first tool 7 and the surface of the second tool 12. The grinding and polishing equipment is used to process the plane optical index. On the basis of meeting the optical surface precision requirement, the size requirement of the corner cube prism 1 can be met. On the basis of obtaining the surface shape and surface defect, the high requirement of the beam deflection angle of the corner cube prism 1 can be ensured.

[0065] It should be noted that in actual operation, after the corner cube prism 1 is placed into the accommodating groove 11, and after the second tool 12 is clamped into the accommodating groove 11, due to the inevitable error in processing and the particularity of the shape and structure of the corner cube prism 1, only the first processing surface, the second processing surface and the third processing surface are required to be substantially in the same plane with the first side wall 8, the second side wall 9 and the third side wall 10 respectively. The linear size of the required corner cube prism 1 is converted into the outer size of the combination, and each processing surface is removed by the grinding and polishing equipment. Therefore, even if the first processing surface, the second processing surface and the third processing surface are substantially in the same plane with the first side wall 8, the second side wall 9 and the third side wall 10 respectively before processing, after processing is completed, the first processing surface, the second processing surface and the third processing surface can be coplanar with the first side wall 8, the second side wall 9 and the third side wall 10 respectively, and the first processing surface, the second processing surface and the third processing surface are mutually orthogonal.

[0066] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the application involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features disclosed in the present application (but not limited to) with similar functions to form technical solutions.

Claims

1. A processing apparatus for a cornerstone prism, characterized in that, The corner prism (1) comprises a quadrangular frustum structure (2) having opposite first and second inclined surfaces, and the first inclined surface (3) is a first machined surface; the corner prism further comprises a prism structure (4) having a circumferential first plane (5), a second plane (6) and a third plane, the third plane is fixedly connected with the second inclined surface, the first inclined surface (3), the first plane (5) and the second plane (6) are perpendicular to each other, and the first plane (5) and the second plane (6) are respectively a second machined surface and a third machined surface; The processing device comprises: A tool assembly comprising a first tool (7) having a first side wall (8), a second side wall (9) and a third side wall (10) perpendicular to and intersecting with each other, and a containing groove (11) formed in the first tool (7) for inlaying and clamping the corner prism (1); When the corner prism (1) is clamped into the containing groove (11), the first inclined surface (3) is coplanar with the first side wall (8), the first plane (5) is coplanar with the second side wall (9), and the second plane (6) is coplanar with the third side wall (10); The tool assembly further comprises a second tool (12) capable of being clamped into the containing groove (11) and abutting against the corner prism (1), the second tool (12) and the first tool (7) are matched to clamp and fix the corner prism (1), and the thickness of the second tool (12) is the same as the width of the containing groove (11); The second tool (12) has a fourth side wall (13), a fifth side wall (14) and a sixth side wall (15) perpendicular to each other, and after the second tool (12) is clamped into the containing groove (11), the fourth side wall (13) is coplanar with the first side wall (8), the fifth side wall (14) is coplanar with the second side wall (9), and the sixth side wall (15) is coplanar with the third side wall (10); The quadrangular frustum structure (2) further has a fourth plane (16) and a fifth plane (17) opposite to each other, and the prism structure (4) further has a sixth plane (18) and a seventh plane (19) opposite to each other, the fourth plane (16) and the sixth plane (18) are coplanar to form an abutting surface one (20), and the fifth plane and the seventh plane (19) are coplanar to form an abutting surface two (21); After the corner prism (1) and the second tool (12) are clamped into the containing groove (11), the abutting surface one (20) abuts against the first tool (7), and the abutting surface two (21) abuts against the second tool (12).

2. The processing apparatus of claim 1, wherein The accommodating groove (11) has the same width as the thickness of the corner cube prism (1), the starting point of the accommodating groove (11) is located on the edge where the second side wall (9) and the third side wall (10) intersect, and the ending point of the accommodating groove (11) is located on the diagonal line of the first side wall (8), which is the connecting line between the point where the first side wall (8), the second side wall (9) and the third side wall (10) intersect and the opposite point on the first side wall (8).

3. The processing apparatus of claim 2, wherein The accommodating groove (11) is machined on the first tooling (7) by a machining center, specifically: The length of the abutting surface one (20) is obtained, the lengths of the two straight sides of the isosceles right triangle formed by the length as the hypotenuse are calculated, and the starting point and the ending point positions of the accommodating groove (11) are marked on the edge where the second side wall (9) and the third side wall (10) intersect and on the diagonal line of the first side wall (8) respectively, and the slotting operation is performed along the connecting line of the starting point and the ending point by the machining center.

4. A processing method using the processing apparatus according to any one of claims 1 to 3, characterized by, The machining method comprises: The first tooling (7) and the second tooling (12) are made according to the size and shape of the corner cube prism (1), and the accommodating groove (11) is opened on the first tooling (7), so that the width of the accommodating groove (11) is the same as the thickness of the corner cube prism (1) and the thickness of the second tooling (12); The corner cube prism (1) and the second tooling (12) are sequentially clamped, the abutting surface one (20) abuts against the first tooling (7), and the abutting surface two (21) abuts against the second tooling (12), thereby forming a combined body; The linear dimensions of the corner cube prism (1) required are marked on the combined body, and the first machining surface, the second machining surface and the third machining surface are respectively ground and polished, so that the first machining surface, the second machining surface and the third machining surface are mutually orthogonal; The combined body is disassembled, the machined corner cube prism (1) is taken out and cleaned, the optical indicators and the outer dimensions of the corner cube prism (1) are inspected, and the qualified products are delivered; After the corner cube prism (1) is clamped into the accommodating groove (11), the first inclined surface (3) and the first side wall (8) of the first tooling (7) are on the same side and coplanar, the first plane (5) and the second side wall (9) are on the same side and coplanar, the second plane (6) and the third side wall (10) are on the same side and coplanar, the abutting surface one (20) abuts against the first tooling (7), and the corner cube prism (1) and the first tooling (7) are bonded by an adhesive; After the corner cube prism (1) is clamped, the second tooling (12) is clamped, so that the fourth side wall (13) of the second tooling (12) and the first side wall (8) of the first tooling (7) are coplanar, the fifth side wall (14) and the second side wall (9) are coplanar, the sixth side wall (15) and the third side wall (10) are coplanar, the abutting surface two (21) abuts against the second tooling (12), and the corner cube prism (1) and the second tooling (12) are bonded by an adhesive.

5. A method of processing according to claim 4, wherein, The linear size of the required corner prism (1) is marked on the assembled body after clamping, and then the assembled body is fixed on a grinding and polishing equipment to grind and polish the side walls where the first processing surface, the second processing surface and the third processing surface are located, which is convenient for processing and can ensure that the first processing surface, the second processing surface and the third processing surface are orthogonal to each other, and the size and optical indexes of the processed corner prism (1) can meet the processing requirements.

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