Prism assembly shaping tool

By designing a shape-tightening tool for optical prism components, the problems of complex operation and low positioning accuracy in the prior art are solved, and efficient and precise processing of double-sided shape of prism components are achieved.

CN223029413UActive Publication Date: 2025-06-27FUJIAN CASTECH CRYSTALS
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Patent Information

Application Number
CN202421668630.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-15
Publication Date
2025-06-27
Estimated Expiration
2034-07-15

AI Technical Summary

Technical Problem

The prior art is complicated when refining optical prism components, and the positioning accuracy is not high, resulting in a reduced processing accuracy and requires multiple hot glue sticking and fixing, which poses a risk of destroying the product.

Method used

A prism assembly shape modification tool is designed, including a base and a fixing member. The first and second faces of the base cooperate with the fixing boss of the fixing member to realize the double-sided shape of the prism assembly, and improve positioning accuracy by positioning fasteners and clamping fasteners.

Benefits of technology

It improves the accuracy and efficiency of the prism component shape modification process, reduces the number of times of hot glue pasting, reduces the risk of damage to the product, and improves the processing accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a prism assembly shaping tool. The prism assembly shaping tool comprises a base and a fixing piece. In the actual use process of the prism assembly shaping tool, firstly, the third face is evenly coated with hot glue, then the fixing face of the prism assembly is fixed to the third face through the hot glue, so that the prism assembly shaping tool is in the first posture, at the moment, the first face faces the fixing piece, the first machining face is shaped, and the second machining face faces the fixing piece; after the shaping of the first processing surface is completed, the cooperation between the first positioning hole and the fixing boss is released, the fixing boss is inserted into the second positioning hole, the shaping of the second processing surface is carried out, and after the shaping of the second surface is completed, the prism assembly is taken down from the third surface, namely the shaping of the two surfaces of the prism assembly is completed. According to the prism component shaping device, the base is positioned through a plurality of matching modes between the base and the fixing piece and matching of the first positioning hole, the second positioning hole and the fixing boss, so that the prism component is positioned, the shaping process is more standard and accurate, and the machining precision is improved.
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Description

Technical Field

[0001] The present application relates to the field of optical technologies, and particularly to a prism assembly shaping tooling. Background Art

[0002] The processing of the transmitted wavefront after gluing an optical prism assembly is extremely difficult, and traditional polishing processes are difficult to effectively control the transmitted wavefront of the assembly. Generally, the control of the transmitted wavefront mainly relies on the control of the surface shape of a single-piece product. However, this method is ineffective when dealing with a glued optical prism assembly. Due to the complexity of the gluing process and the particularity of the assembly structure, simply relying on the control of the single-piece surface shape cannot achieve an ideal shaping effect. This challenge has prompted us to try various advanced shaping processes.

[0003] First, we adopted the shaping process of an ion beam polishing machine. This process can correct minute defects on the optical surface at the nanometer level by precisely controlling the energy and direction of the ion beam. However, although the ion beam polishing machine performs well in some cases, its shaping speed is slow and the cost is high. Subsequently, we tried the shaping process of an OptoTech polishing machine. This process combines the advantages of traditional polishing and modern technologies, and can improve the shaping efficiency while ensuring a high surface quality.

[0004] However, during the process of shaping a prism assembly using the OptoTech polishing machine shaping process, the operation is complex when fixing the prism assembly with the existing tooling. And after fixing the prism assembly to the tooling with hot glue, only one surface of the prism assembly can be shaped. Therefore, it is necessary to fix the prism assembly by pasting with hot glue multiple times, which has the risk of damaging the product. Moreover, when fixing the prism assembly, the positioning accuracy is not high, which easily leads to a reduction in the processing accuracy. Summary of the Utility Model

[0005] Based on this, it is necessary to provide a prism assembly shaping tooling for the problems that the operation is complex when fixing the prism assembly with the existing tooling, and after fixing the prism assembly to the tooling with hot glue, only one surface of the prism assembly can be shaped. Therefore, it is necessary to fix the prism assembly by pasting with hot glue multiple times, which has the risk of damaging the product. And when fixing the prism assembly, the positioning accuracy is not high, which easily leads to a reduction in the processing accuracy.

[0006] A prism assembly shaping tooling, the prism assembly shaping tooling includes:

[0007] A base, the base has a first surface, a second surface and a third surface. The first surface is perpendicular to the second surface, the third surface is inclined to the second surface, the third surface is inclined to the first surface, the first surface has a first positioning hole, and the second surface has a second positioning hole; the third surface is used for fixing the fixing surface of the prism assembly;

[0008] A fixing member, the fixing member having a fixing boss, the fixing boss being selectively engageable with any one of the first positioning hole and the second positioning hole to place the prism assembly shaping tooling in a first posture or a second posture;

[0009] When the prism assembly shaping tooling is in the first posture, the fixing boss is located within and adapted to the first positioning hole;

[0010] When the prism assembly shaping tooling is in the second posture, the fixing boss is located within and adapted to the second positioning hole.

[0011] In one embodiment, the fixing member includes a fixing disk and a fixing post, a fixing boss is provided on one side surface of the fixing disk, and the other side surface is connected to the fixing post, and the fixing boss, the fixing disk and the fixing post are coaxial.

[0012] In one embodiment, the prism assembly shaping tooling further includes a plurality of positioning fasteners; a plurality of first fastening holes are provided on the first surface, a plurality of second fastening holes are provided on the second surface, and a plurality of third fastening holes are provided along the axial direction of the fixing disk;

[0013] When the prism assembly shaping tooling is in the first posture, the plurality of first fastening holes, the plurality of third fastening holes and the plurality of positioning fasteners correspond one by one, and the positioning fasteners are inserted through the first fastening holes and the third fastening holes;

[0014] When the prism assembly shaping tooling is in the second posture, the plurality of second fastening holes, the plurality of third fastening holes and the plurality of positioning fasteners correspond one by one, and the positioning fasteners are inserted through the second fastening holes and the third fastening holes.

[0015] In one embodiment, the plurality of first fastening holes are evenly arranged circumferentially around the first positioning hole, and the plurality of second fastening holes are evenly arranged circumferentially around the second positioning hole.

[0016] In one embodiment, a plurality of strip-shaped grooves are provided on the third surface.

[0017] In one embodiment, the plurality of strip-shaped grooves all extend in a first direction and are arranged in a second direction, the first direction is parallel to the first surface, the first direction is parallel to the second surface, and the second direction is perpendicular to the first direction and parallel to the third surface.

[0018] In one embodiment, the prism assembly shaping tooling further includes two baffles, and the two baffles are respectively connected to the edges at both ends of the third surface along the first direction, and the first direction is parallel to the first surface and parallel to the second surface.

[0019] In one embodiment, the two plate surfaces of the two baffles opposite to each other are perpendicular to the first surface, the second surface, and the third surface simultaneously.

[0020] In one embodiment, the prism assembly modification tooling further includes two retaining bars and two sets of clamping fasteners. The retaining bars are provided with at least two first fixing holes.

[0021] The two side surfaces of the base perpendicular to the first direction are the fourth surface and the fifth surface respectively. The fourth surface and the fifth surface are parallel and are both provided with at least two second fixing holes.

[0022] A plurality of the clamping fasteners, a plurality of the first fixing holes, and a plurality of the second fixing holes correspond to each other one by one. The clamping fasteners are inserted through the first fixing holes and the second fixing holes to detachably fix the retaining bars to the base.

[0023] In one embodiment, the extending direction of the retaining bar is parallel to the first surface and perpendicular to the second surface, and the retaining bar extends beyond the edge of the first surface.

[0024] During the actual use of the above-mentioned prism assembly modification tooling, first, heat glue is evenly coated on the third surface. Subsequently, the fixing surface of the prism assembly is fixed to the third surface through the heat glue. Among them, the first processing surface of the prism assembly is parallel to the first surface, and the second processing surface is parallel to the second surface. The fixing boss is inserted into the first positioning hole to make the prism assembly modification tooling in the first posture. At this time, the first surface faces the fixing part, and the fixing part is fixed at the position to be fixed, and then the first processing surface can be modified. After the modification of the first processing surface is completed, the cooperation between the first positioning hole and the fixing boss is released, the fixed base and the prism assembly are flipped 90°, and the fixing boss is inserted into the second positioning hole. At this time, the second surface faces the fixing part, and then the second processing surface can be modified. After the modification of the second processing surface is completed, the cooperation between the second positioning hole and the fixing boss is released, and the prism assembly is removed from the third surface, that is, the modification of the two surfaces of the prism assembly is completed. During the prism modification process, the above-mentioned prism assembly modification tooling can, after fixing the prism assembly with heat glue, through multiple cooperation methods between the base and the fixing part, and position the base through the cooperation of the first positioning hole, the second positioning hole and the fixing boss, so as to position the prism assembly, making the modification process more standardized and precise, and improving the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the prism assembly modification tooling of one embodiment.

[0026] Figure 2 For Figure 1 a schematic diagram of the matching of the first positioning hole and the fixing boss of the prism assembly modification tooling in

[0027] Figure 3 is Figure 2 a schematic diagram from another perspective.

[0028] Figure 4 is Figure 2 a schematic diagram of removing the fixing member.

[0029] Figure 5 is Figure 2 a schematic diagram of the fixing member in

[0030] Explanation of the reference numerals in the drawings:

[0031] 100 - Prism assembly modification tooling;

[0032] 110 - Base; 111 - First surface; 112 - Second surface; 113 - Third surface; 114 - Fourth surface; 115 - Fifth surface; 116 - First positioning hole; 117 - Second positioning hole; 118 - First fastening hole; 119 - Second fastening hole; 1131 - Strip groove;

[0033] 120 - Fixing member; 121 - Fixing plate; 122 - Fixing column; 123 - Third fastening hole;

[0034] 130 - Fixed boss; 131 - Positioning fastener; 132 - Clamping fastener; 133 - Baffle; 134 - Stop bar; 135 - First fixing hole;

[0035] 200 - Prism assembly; 201 - First machining surface; 202 - Second machining surface; 203 - Fixing surface;

[0036] OX - First direction; OY - Second direction. Detailed implementation manners

[0037] To make the above - mentioned objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0038] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0039] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0040] In the present application, unless otherwise clearly specified and limited, if there are terms such as "mounted", "connected", "connected to", "fixed", etc., these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0041] In the present application, unless otherwise clearly specified and limited, if there is a description such as a first feature being "on" or "under" a second feature, the meaning may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0042] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If present, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for illustrative purposes and do not represent the only implementation.

[0043] Referring to Figure 1 , Figure 1 FIG. shows a schematic structural diagram of the prism assembly 200 modification tooling 100 in an embodiment of the present application. The prism assembly 200 modification tooling 100 provided in an embodiment of the present application includes: a base 110 and a fixing member 120.

[0044] In the above-mentioned prism assembly 200 modification tooling 100, the base 110 has a first surface 111, a second surface 112 and a third surface 113. The first surface 111 is perpendicular to the second surface 112. The third surface 113 is inclined to the second surface 112, and the third surface 113 is inclined to the first surface 111. The first surface 111 has a first positioning hole 116, such as Figure 4 , and the second surface 112 has a second positioning hole 117, such as Figure 3 . The third surface 113 is used to fix the fixing surface of the prism assembly 200. The fixing member 120 has a fixing boss 130, such as Figure 5 , and the fixing boss 130 can be selectively engaged with the first positioning hole 116 and the second positioning hole 117 to make the prism assembly 200 modification tooling 100 in a first posture or a second posture. When the prism assembly 200 modification tooling 100 is in the first posture, the fixing boss 130 is located in the first positioning hole 116 and is adapted; when the prism assembly 200 modification tooling 100 is in the second posture, the fixing boss 130 is located in the second positioning hole 117 and is adapted.

[0045] In the actual use process of the above-mentioned prism assembly 200 modification tooling 100, first, hot glue is evenly coated on the third surface 113, and then the fixing surface of the prism assembly 200 is fixed to the third surface 113 through the hot glue. Among them, the first processing surface 201 of the prism assembly 200 is parallel to the first surface 111, and the second processing surface 202 is parallel to the second surface 112. The fixing boss 130 is inserted into the first positioning hole 116 to make the prism assembly 200 modification tooling 100 in the first posture, such as Figure 2, at this time, the first surface 111 faces the fixing member 120, and the fixing member 120 is fixed at the position to be fixed, so that the first machining surface 201 can be shaped. After the shaping of the first machining surface 201 is completed, the first positioning hole 116 is disengaged from the fixing boss 130, and the fixed base 110 and the prism assembly 200 are turned 90° and the fixing boss 130 is inserted into the second positioning hole 117. At this time, the second surface 112 faces the fixing member 120, so that the second machining surface 202 can be shaped. After the shaping of the second surface 112 is completed, the second positioning hole 117 is disengaged from the fixing boss 130, and the prism assembly 200 is removed from the third surface 113, that is, the shaping of the two surfaces of the prism assembly 200 is completed. The above-mentioned prism assembly 200 shaping tooling 100 can, during the prism shaping process, after thermally gluing and fixing the prism assembly 200, through multiple cooperation methods between the base 110 and the fixing member 120, and through the cooperation of the first positioning hole 116, the second positioning hole 117 and the fixing boss 130, position the base 110, thereby positioning the prism assembly 200, making the shaping process more standardized and precise, and improving the machining accuracy.

[0046] In one embodiment, the fixing member 120 includes a fixing disk 121 and a fixing column 122. A fixing boss 130 is provided on one side surface of the fixing disk 121, and the other side surface is connected to the fixing column 122. The fixing boss 130, the fixing disk 121 and the fixing column 122 are coaxial, so as to ensure that during the machining process, the force transmitted from the first positioning hole 116 or the second positioning hole 117 to the fixing boss 130, from the fixing boss 130 to the fixing disk 121, from the fixing disk 121 to the fixing column 122, and from the fixing column 122 to the installation position of the fixing member 120 is evenly distributed, ensuring the machining accuracy. At the same time, it can conveniently position the base 110 in the axial direction through the fixing boss 130, without the need for measurement work, and improve the efficiency of fixing the base 110 to the fixing member 120.

[0047] Refer to Figure 3 , in one embodiment, the prism assembly 200 shaping tooling 100 further includes a plurality of positioning fasteners 131. A plurality of first fastening holes 118 are provided on the first surface 111, a plurality of second fastening holes 119 are provided on the second surface 112, and a plurality of third fastening holes 123 are provided along the axial direction of the fixing disk 121. When the prism assembly 200 shaping tooling 100 is in the first posture, the plurality of first fastening holes 118, the plurality of third fastening holes 123 and the plurality of positioning fasteners 131 correspond one by one, and the positioning fasteners 131 are inserted through the first fastening holes 118 and the third fastening holes 123. When the prism assembly 200 shaping tooling 100 is in the second posture, the plurality of second fastening holes 119, the plurality of third fastening holes 123 and the plurality of positioning fasteners 131 correspond one by one, and the positioning fasteners 131 are inserted through the second fastening holes 119 and the third fastening holes 123.

[0048] Thus, when the first machining surface 201 needs to be modified, the fixing boss 130 can be inserted into the first positioning hole 116. The positioning fastener 131 is passed through the first fastening hole 118 and the third fastening hole 123 to fix the base 110 and the fixing member 120. When the second machining surface 202 needs to be modified, the positioning fastener 131 is removed, the fixing boss 130 is pulled out of the first positioning hole 116 and then inserted into the second positioning hole 117. The positioning fastener 131 is passed through the second fastening hole 119 and the third fastening hole 123 to fix the base 110 and the fixing member 120. Thus, after preliminary positioning by the fixing boss 130, the positioning fastener 131 can be used for complete detachable fixation, thereby improving the installation accuracy and installation efficiency of the base 110 and the fixing member 120.

[0049] Refer to Figure 3 and Figure 4 , in an embodiment, a plurality of first fastening holes 118 are uniformly arranged around the circumference of the first positioning hole 116, and a plurality of second fastening holes 119 are uniformly arranged around the circumference of the second positioning hole 117, so that the fixing force distribution between the first surface 111 and the positioning disk is more uniform, and the fixing force distribution between the second surface 112 and the positioning disk is more uniform, improving the machining accuracy of the modification of the prism assembly 200.

[0050] Refer to Figure 1 and Figure 2 , in an embodiment, a plurality of strip-shaped grooves 1131 are formed in the third surface 113. Thus, when hot glue is applied to the third surface 113, the side walls of the strip-shaped grooves 1131 can be used to improve the firmness of the hot glue and the base 110, making the fixation between the prism assembly 200 and the base 110 more firm.

[0051] Refer to Figure 1 and Figure 2 , in an embodiment, a plurality of strip-shaped grooves 1131 all extend along the first direction OX and are arranged along the second direction OY. The first direction OX is parallel to the first surface 111, the first direction OX is parallel to the second surface 112, and the second direction OY is perpendicular to the first direction OX and parallel to the third surface 113. Since the third surface 113 is inclined to the second surface 112 and inclined to the first surface 111, when the first surface 111 or the second surface 112 is horizontal, the third surface 113 is inclined to the horizontal plane. Therefore, one side wall in the length direction of the strip-shaped groove 1131 can serve as a step to give a certain supporting force to the hot glue, that is, to give a certain supporting force to the base 110, improving the fixing force between the base 110 and the prism assembly 200.

[0052] Refer to Figure 1 and Figure 2, in one embodiment, the prism assembly 200 modification tooling 100 further includes two baffles 133, and the two baffles 133 are respectively connected to the edges at both ends of the third surface 113 along the first direction OX, so that the prism assembly 200 can be clamped by the two baffles 133 at both ends of the third surface 113 along the first direction OX.

[0053] Refer to Figure 1 and Figure 2 , in one embodiment, the two opposite plate surfaces of the two baffles 133 are simultaneously perpendicular to the first surface 111, the second surface 112, and the third surface 113, so that the two parallel surfaces at both ends of the prism assembly 200 along the first direction OX are clamped by the two baffles 133, improving the supporting effect of the base 110 on the prism assembly 200.

[0054] Refer to Figure 1 and Figure 2 , in one embodiment, the prism assembly 200 modification tooling 100 further includes two retaining strips and two sets of clamping fasteners 132. The retaining strips are provided with at least two first fixing holes 135. The two side surfaces of the base 110 perpendicular to the first direction OX are respectively the fourth surface 114 and the fifth surface 115. The fourth surface 114 and the fifth surface 115 are parallel and are both provided with at least two second fixing holes (not shown). A plurality of clamping fasteners 132, a plurality of first fixing holes 135, and a plurality of second fixing holes correspond to each other one by one. The clamping fasteners 132 are passed through the first fixing holes 135 and the second fixing holes so that the retaining strips can be detachably fixed to the base 110. Thus, the two retaining strips are respectively fixed to the fourth surface 114 and the fifth surface 115 of the base 110 through the clamping fasteners 132. The extending direction of the retaining strips is parallel to the first surface 111 and perpendicular to the second surface 112, and the retaining strips extend beyond the edge of the first surface 111. Thus, the part of the prism assembly 200 protruding beyond the edge of the base 110 is clamped by the two retaining strips, further fixing the prism assembly 200 to the base 110.

[0055] Specifically, the first fastening hole 118, the second fastening hole 119, the first positioning hole 116, the second fixing hole, and the second positioning hole 117 are blind holes, and the first fixing hole 135 and the third fastening hole 123 are through holes.

[0056] Specifically, the clamping fasteners 132 and the positioning fasteners 131 are one of screws, bolts, or threaded rods, and the specific form is not limited.

[0057] Specifically, the base 110, the baffles 133, and the retaining strips 134 are made of aluminum, and the material of the fixing member 120 is stainless steel.

[0058] Preferably, the baffle 133 is a strip-shaped plate, and the extending direction of the baffle 133 is perpendicular to the first surface 111.

[0059] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0060] The above-described embodiments only express several implementation manners of the present application, and the description thereof is relatively specific and detailed, but it should not be understood as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A prism assembly shaping tool, characterized in that: The prism assembly shaping tool comprises: A base, the base having a first surface, a second surface and a third surface, the first surface is perpendicular to the second surface, the third surface is inclined to the second surface, the third surface is inclined to the first surface, the first surface has a first positioning hole, the second surface has a second positioning hole; the third surface is a fixing surface for fixing the prism assembly; A fixing member, wherein the fixing member has a fixing boss, and the fixing boss can selectively cooperate with any one of the first positioning hole and the second positioning hole to make the prism assembly shaping tool be in a first posture or a second posture; When the prism assembly shaping tool is in the first posture, the fixing boss is located in the first positioning hole and fits in the first positioning hole; When the prism assembly shaping tool is in the second posture, the fixing boss is located in and adapted to the second positioning hole.

2. The prism assembly shaping tool according to claim 1, characterized in that: The fixing member comprises a fixing plate and a fixing column. A fixing boss is arranged on one side of the fixing plate, and the other side is connected to the fixing column. The fixing boss, the fixing plate and the fixing column are coaxial.

3. The prism assembly shaping tool according to claim 2, characterized in that: The prism assembly shaping tooling also includes a plurality of positioning fasteners; the first surface is provided with a plurality of first fastening holes, the second surface is provided with a plurality of second fastening holes, and the fixing plate is provided with a plurality of third fastening holes along its axial direction; When the prism assembly shaping tool is in the first posture, the plurality of the first fastening holes, the plurality of the third fastening holes and the plurality of the positioning fasteners correspond to each other one by one, and the positioning fasteners are inserted through the first fastening holes and the third fastening holes; When the prism assembly shaping tool is in the second posture, the plurality of second fastening holes, the plurality of third fastening holes and the plurality of positioning fasteners correspond one to one, and the positioning fasteners are inserted through the second fastening holes and the third fastening holes.

4. The prism assembly shaping tool according to claim 3, characterized in that: The plurality of first fastening holes are evenly arranged around the circumference of the first positioning hole, and the plurality of second fastening holes are evenly arranged around the circumference of the second positioning hole.

5. The prism assembly shaping tool according to claim 1, characterized in that: The third surface is provided with a plurality of strip-shaped grooves.

6. The prism assembly shaping tool according to claim 5, characterized in that: The plurality of strip grooves extend along a first direction and are arranged along a second direction, the first direction is parallel to the first surface, the first direction is parallel to the second surface, and the second direction is perpendicular to the first direction and parallel to the third surface.

7. The prism assembly shaping tool according to claim 1, characterized in that: The prism assembly shaping tool further includes two baffles, which are respectively connected to edges of both ends of the third surface along a first direction, wherein the first direction is parallel to the first surface and parallel to the second surface.

8. The prism assembly shaping tool according to claim 7, characterized in that: Two opposite plate surfaces of the two baffles are perpendicular to the first surface, the second surface and the third surface at the same time.

9. The prism assembly shaping tool according to claim 1, characterized in that: The prism assembly shaping tool further comprises two baffles and two sets of clamping fasteners, and the baffles are provided with at least two first fixing holes; The two side surfaces of the base perpendicular to the first direction are respectively a fourth surface and a fifth surface, the fourth surface and the fifth surface are parallel and both are provided with at least two second fixing holes; The plurality of clamping fasteners, the plurality of first fixing holes and the plurality of second fixing holes correspond to each other one by one, and the clamping fasteners are passed through the first fixing holes and the second fixing holes so that the blocking bar can be detachably fixed to the base.

10. The prism assembly shaping tool according to claim 9, characterized in that: An extension direction of the blocking bar is parallel to the first surface and perpendicular to the second surface, and the blocking bar exceeds an edge of the first surface.