Optical prism processing positioning device

Abstract

The present invention relates to an optical prism processing and positioning device, comprising a placing mechanism, a rotating mechanism and a positioning mechanism. The placing mechanism comprises a limiting part and a placing table, wherein the limiting part is arranged on the placing table, and the placing table is used to place the prism to be processed; the placing mechanism is detachably arranged on the rotating mechanism, and the rotating mechanism is used to drive the placing mechanism to rotate under the drive of the driving mechanism; the positioning mechanism comprises a positioning component and a driving unit, and the positioning component can be placed in a stop position or a loose position under the drive of the driving unit, and the rotating mechanism can drive the prism on the placing mechanism to rotate, so as to realize the demand of automatically adjusting the processing direction of the prism, and then the positioning mechanism cooperates with the placing mechanism to ensure that the prism is in the same horizontal plane before and after the turning, so as to realize the precise positioning of the prism before and after the turning, and avoid the prism from being offset during the processing; the processing direction adjustment time of the prism is shortened, thereby improving the processing efficiency of the prism.

Description

Technical Field

[0001] The present application relates to the field of optical instrument processing, and in particular to an optical prism processing and positioning device. Background Art

[0002] A prism is a transparent object surrounded by two intersecting planes, which is used to split light or disperse light beams. In the process of processing optical prisms, the prisms need to be polished, cut, glued, etc. During the polishing process, the optical prism needs to be clamped. Optical prisms have multiple edges. In the prior art, single-sided polishing is adopted. It is necessary to polish one side and then manually adjust the clamping direction to complete the polishing of the other side, and so on, until the edges that need to be polished of the prism are polished. This process makes the prism polishing time long and inefficient, and the manual adjustment of the clamping direction will cause the reference position of the prism to be disrupted, resulting in inconsistent heights of the polished edges and a large polishing error. Summary of the invention

[0003] In view of the above problems, the present invention provides an optical prism processing positioning device to solve the problem that the grinding direction cannot be automatically adjusted and the clamping is not precise enough after adjustment.

[0004] To achieve the above-mentioned purpose, the present invention provides an optical prism processing and positioning device, including a placement mechanism, a rotation mechanism and a positioning mechanism. The placement mechanism includes a limit portion and a storage platform, the limit portion is arranged on the storage platform, and the storage platform is used to place the prism to be processed; the placement mechanism is detachably arranged on the rotation mechanism, and the rotation mechanism is used to drive the placement mechanism to rotate under the drive of the driving mechanism; the positioning mechanism includes a positioning component and a driving unit, the positioning component includes a positioning end, and the positioning component can be placed in a stop position or a loose position under the drive of the driving unit. When the positioning component is placed in the stop position, the positioning end is driven by the driving unit to fit the side of the prism to be processed, and the other side of the prism is stopped on the limit portion. When the positioning component is placed in the loose position, the positioning end is driven by the driving unit to separate from the side of the prism to be processed.

[0005] In some embodiments, the positioning mechanism further includes a first driving unit and a first positioning assembly; the first positioning assembly is arranged on the first driving unit, the first positioning assembly includes a first positioning end, and the first driving mechanism drives the first positioning end to perform telescopic movement along a first direction; the placement mechanism further includes a first limiting portion, the first limiting portion is arranged on the placement table along the first direction, and the first limiting portion is used to limit the prism to be processed on the placement table along the first direction;

[0006] The first positioning component can be placed in a first stop position or a first release position under the drive of the first driving unit. When the first positioning component is placed in the first stop position, the first positioning end is driven by the first driving unit to fit the side of the prism to be processed, and the other side of the prism is stopped on the first limiting portion. When the first positioning component is placed in the first release position, the first positioning end is driven by the first driving unit to separate from the side of the prism to be processed.

[0007] In some embodiments, a first through hole is formed on the first limiting portion, and when the first positioning component is placed in the first stopping position, the first positioning end passes through the first through hole and stops on the prism.

[0008] In some embodiments, the number of the first limiting portions is two, and the first limiting portions are arranged opposite to each other along the first direction.

[0009] In some embodiments, the positioning mechanism further includes a second driving unit and a second positioning assembly; the second positioning assembly is arranged on the second driving unit, the second positioning assembly includes a second positioning end, and the second driving mechanism drives the second positioning end to perform telescopic movement along the second direction; the placement mechanism further includes a second limiting portion, the second limiting portion is arranged on the placement table along the second direction, and the second limiting portion is used to limit the prism to be processed on the placement table along the second direction;

[0010] The second positioning component can be placed in a second stopping position or a second loosening position under the drive of the second driving unit. When the second positioning component is placed in the second stopping position, the second positioning end is driven by the second driving unit to fit the side of the prism to be processed, and the other side of the prism is stopped on the second limiting portion. When the second positioning component is placed in the second loosening position, the second positioning end is driven by the second driving unit to separate from the side of the prism to be processed.

[0011] In some embodiments, a second through hole is formed on the second limiting portion, and when the second positioning component is placed in the second stopping position, the second positioning end passes through the second through hole and stops on the prism.

[0012] In some embodiments, the placement table further has a first boss, which is disposed at both ends of the placement table and is used to raise the prism to be processed.

[0013] In some embodiments, the positioning mechanism further includes a third driving unit and a third positioning assembly; the third positioning assembly is arranged on the third driving unit, the third positioning assembly includes a third positioning end, and the third driving unit drives the third positioning end to perform telescopic movement along the height direction; the placement mechanism further includes a third limiting portion, the third limiting portion is arranged on the placement table along the height direction, and the third limiting portion is used to limit the prism to be processed on the placement table along the height direction;

[0014] The third positioning component can be placed in a third stopping position or a third loosening position under the drive of the third driving unit. When the third positioning component is placed in the third stopping position, the third positioning end is driven by the third driving unit to fit with the upper surface of the prism to be processed, and the lower surface of the prism is stopped on the third limiting portion. When the third positioning component is placed in the third loosening position, the third positioning end is driven by the third driving unit to separate from the upper surface of the prism to be processed.

[0015] In some embodiments, a third through hole is further provided on the third limiting portion, and one end of the third through hole is connected to a negative pressure generator for adsorbing the prism to be processed by negative pressure.

[0016] In some embodiments, the third limiting portion protrudes from the four edges of the lower surface of the prism; and the third positioning end protrudes from the four edges of the upper surface of the prism.

[0017] Different from the prior art, the above technical solution provides a placement mechanism, a rotation mechanism and a positioning mechanism. The placement mechanism is arranged on the rotation mechanism. When the prism is placed on the placement mechanism, the rotation mechanism can drive the prism on the placement mechanism to rotate, thereby realizing the requirement of automatically adjusting the processing direction of the prism. The positioning mechanism cooperates with the placement mechanism to ensure that the prism is in the same horizontal plane before and after turning, thereby realizing precise positioning of the prism before and after turning, and avoiding the prism from being offset during the processing. At the same time, the direction adjustment of the prism is changed from manual to automatic, thereby shortening the processing direction adjustment time of the prism, thereby improving the processing efficiency of the prism.

[0018] The above-mentioned records related to the invention content are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation mode and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and shall not be considered as limitations of the present application.

[0020] In the drawings of the specification:

[0021] Figure 1 It is a schematic diagram of the optical prism processing and positioning device described in the specific implementation method;

[0022] Figure 2 is a schematic diagram of the positioning mechanism described in the specific implementation method;

[0023] Figure 3 It is a schematic diagram of the placement mechanism described in the specific implementation method;

[0024] Figure 4 It is a partial schematic diagram of the positioning process of the first positioning end in a specific implementation manner;

[0025] Figure 5 It is a partial schematic diagram of the positioning process of the second positioning end in a specific implementation manner;

[0026] Figure 6 is another schematic diagram of the positioning mechanism described in the specific implementation mode;

[0027] Figure 7 is another schematic diagram of the placement mechanism described in the specific implementation manner;

[0028] Figure 8 This is a schematic diagram of the third positioning component described in the specific implementation method;

[0029] Fig. 9 It is a cross-sectional view of the adsorption state of the third limiting part described in the specific implementation method. The reference numerals involved in the above-mentioned figures are explained as follows:

[0030] 1. Placement mechanism;

[0031] 11. Storage table;

[0032] 111, first boss;

[0033] 12. A first limiting portion;

[0034] 121, first through hole;

[0035] 13. The second limiting part;

[0036] 131, second through hole;

[0037] 14. The third limiting part;

[0038] 141, third through hole;

[0039] 15. The fourth limiting part;

[0040] 16. Installation department;

[0041] 2. Rotating mechanism;

[0042] 21. Rotating table;

[0043] 211, second boss;

[0044] 22. Rotation drive unit;

[0045] 3. Positioning mechanism;

[0046] 31. A first positioning component;

[0047] 311, first positioning end;

[0048] 32. A second positioning component;

[0049] 321, second positioning end;

[0050] 33. The third positioning component;

[0051] 331, third positioning end;

[0052] 34. A first driving unit;

[0053] 35. A second driving unit;

[0054] 36. The third driving unit;

[0055] 361, third motor;

[0056] 362, screw assembly;

[0057] 363, coupling;

[0058] 364. Sensor;

[0059] 365, slide rail;

[0060] 4. Prism;

[0061] 41. First prism;

[0062] 42. Second prism;

[0063] 5. Fixed seat. DETAILED DESCRIPTION

[0064] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0065] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0066] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0067] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0068] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0069] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0070] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0071] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0072] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0073] Please refer to Figure 1 The present embodiment provides a processing and positioning device for an optical prism 4, comprising a placing mechanism 1, a rotating mechanism 2 and a positioning mechanism 3. The placing mechanism 1 comprises a limiting portion and a placing table 11, wherein the limiting portion is arranged on the placing table 11, and the placing table 11 is used to place the prism 4 to be processed; the placing mechanism 1 is detachably arranged on the rotating mechanism 2, and the rotating mechanism 2 is used to drive the placing mechanism 1 to rotate under the drive of the driving mechanism; the positioning mechanism 3 comprises a positioning assembly and a driving unit, wherein the positioning assembly comprises a positioning end, and the positioning assembly can be placed in a stop position or a loose position under the drive of the driving unit, and when the positioning assembly is placed in the stop position, the positioning end is driven by the driving unit to fit with the side of the prism 4 to be processed, and the other side of the prism 4 is stopped on the limiting portion, and when the positioning assembly is placed in the loose position, the positioning end is driven by the driving unit to separate from the side of the prism 4 to be processed.

[0074] The placement mechanism 1 is used to place the prism 4. The placement mechanism 1 is detachably connected to the rotating mechanism 2. In some embodiments, multiple placement mechanisms 1 can be set according to different specifications of the prism 4, and the placement mechanism 1 can be replaced according to actual needs. The placement mechanism 1 is provided with a placement table 11 and a limiting portion. The placement table 11 is used to carry the prism 4 to be processed. Therefore, the placement table 11 is a table surface for the prism 4 to be placed. The shape of the placement table 11 can be various, such as square, rectangular, circular, etc., and can also be formed by splicing several planes. For example, the placement table 11 includes multiple supporting protrusions, and the protruding ends of the multiple supporting protrusions are on the same horizontal plane. The protruding ends form a supporting surface, and the prism 4 can be placed on the multiple supporting surfaces. The limiting portion is used to limit the position of the prism 4 on the placement table 11. There is a certain height difference between the limiting portion and the placement table 11, so that the side of the prism 4 can be stopped at the limiting portion or the side of the placement table 11 when it is offset at a small angle, thereby achieving the purpose of limiting the excessive flipping of the prism 4 on the placement table 11. For example, the limiting part is a groove, and the groove is arranged on the platform 11, and there is a certain height difference between the groove and the platform 11, so that the inner side wall of the platform 11 can stop against the side of the offset prism 4; for another example, the limiting part is a protrusion, and the protrusion is arranged around the platform 11, and there is a certain height difference between the protrusion and the platform 11, so that the side wall of the protrusion can stop against the side of the offset prism 4, so as to achieve the purpose of limiting the prism 4. The number of limiting parts can be one or more, and optionally, the number of limiting parts distributed around the prism 4 can be set according to the shape of the prism 4. For example, if the prism 4 is hexagonal, then the limiting parts can be set at the six sides of the prism 4 to limit the rotation of the prism 4.

[0075] The rotating mechanism 2 specifically includes a rotating table 21 and a rotating drive unit 22. The rotating drive unit 22 is the driving mechanism of the rotating mechanism 2, which can be a motor or a rotating cylinder, etc. In the present embodiment, the rotating drive unit 22 can be a DD motor. The DD motor is a high-precision, high-speed, high-torque outer rotor type that can directly drive the motor. It has the characteristics of low speed and high torque, can reduce energy output, and achieve the effect of precise angle control. The rotating table 21 is a platform for placing objects to be rotated. The rotating table 21 is arranged above the rotating drive unit 22, and the placing mechanism 1 is arranged above the rotating table 21. Under the drive of the rotating drive unit 22, the automatic rotation of the prism 4 on the placing mechanism 1 is realized.

[0076] The positioning mechanism 3 includes a positioning component and a driving unit. The driving unit can be a motor, a cylinder or other components. The positioning component specifically includes a connecting plate connected to the driving unit and a positioning end. The positioning end cooperates with a limiting portion to realize the positioning of the prism 4 to be processed. For example, the prism 4 is a hexahedral square prism 4. The four sides of the prism 4 are provided with limiting portions. There are two positioning ends, which are respectively arranged on the side where two adjacent sides of the prism 4 are located. When it is necessary to position a certain side of the prism 4, the positioning end of this side will be driven by the driving unit to stop on the side of the prism 4, and the other side of the prism 4 will stop on the limiting portion. The limiting portion and the positioning end realize the clamping action of the prism 4 in the direction of the side. Therefore, the shape of the positioning end is preferably changed according to the shape of the limiting portion and the prism 4. For example, when the prism 4 is a polygon, the positioning end and the end of the prism 4 that stops can be processed according to the shape of the side of the prism 4 to ensure that the positioning end and the side of the prism 4 are more closely fitted and the clamping is more stable. In some embodiments, the positioning mechanism, the placement mechanism and the rotation mechanism can be fixedly arranged on the same fixed seat 5.

[0077] Under the drive of the driving unit, the positioning end can approach the prism 4 along the driving direction and stop at the side of the prism 4, or move away from the side of the prism 4. In this embodiment, the prism 4 is a square hexahedron structure, so the driving direction of the positioning mechanism 3 can be set to the length direction of the prism 4, the width direction of the prism 4, and the height direction of the prism 4. The positioning component is placed in the stop position or the loose position under the drive of the driving unit. When the positioning component is placed in the stop position, the positioning end is driven by the driving unit to approach the prism 4 and stop at the side of the prism 4. Since a limiting portion is provided on one side of the prism 4 corresponding to the positioning end, the stopping action here specifically refers to the positioning end pushing the prism 4 until the prism 4 stops at the side of the limiting portion. When the positioning component is placed in the loose position, the positioning end is driven by the driving unit to move away from the side of the prism 4, and the prism 4 is in a state that can be taken out or rotated by the operator.

[0078] In some embodiments, a visual sensor component is also included. The visual sensor component is arranged above the placement mechanism, including a light source and a camera. The camera takes a picture of the prism 4, and the light source is used to enhance the brightness of the prism 4, so that the picture taken by the camera is clearer. The camera compares the taken picture with the picture of the prism 4 stored in advance in the controller. The comparison includes: confirming the presence or absence of the prism 4, confirming whether the placement direction of the prism 4 meets the standard, and confirming the specific position of the processing surface to be processed by the prism 4 (precisely positioning the processing surface to control the direction of the processing tool). When the placement direction of the prism 4 does not meet the standard (that is, the positioning end cannot be positioned according to the current placement direction of the prism 4), the clamping device that drives the prism 4 rearranges the prism 4 to meet the positioning requirements.

[0079] By setting the placement mechanism 1, the prism 4 to be processed is pre-placed on the placement table 11. The placement table 11 is provided with a limiter, which can limit the prism 4 to be processed to prevent the prism 4 to be processed from excessively deviating from the processing position. The placement mechanism 1 is set on the rotating mechanism 2, and the rotating mechanism 2 can drive the placement mechanism 1 to rotate to meet the needs of adjusting the processing direction of the prism 4 to be processed. The positioning mechanism 3 is used to fix the prism 4 on the placement table 11 to prevent the prism 4 from having a slight deviation during the processing process such as grinding, thereby reducing the processing error of the prism 4.

[0080] Please refer to Figures 2 to 4 In some embodiments, the positioning mechanism 3 further includes a first driving unit 34 and a first positioning component 31; the first positioning component 31 is arranged on the first driving unit 34, the first positioning component 31 includes a first positioning end 311, and the first driving mechanism drives the first positioning end 311 to perform telescopic movement along the first direction; the placement mechanism 1 further includes a first limiting portion 12, the first limiting portion 12 is arranged on the storage table 11 along the first direction, and the first limiting portion 12 is used to limit the prism 4 to be processed on the storage table 11 along the first direction; the first positioning component 31 can be placed in a first stop position or a first loose position under the drive of the first driving unit 34. When the first positioning component 31 is placed in the first stop position, the first positioning end 311 is driven by the first driving unit 34 to fit the side of the prism 4 to be processed, and the other side of the prism 4 is stopped on the first limiting portion 12. When the first positioning component 31 is placed in the first loose position, the first positioning end 311 is driven by the first driving unit 34 to separate from the side of the prism 4 to be processed.

[0081] The prism 4 includes a first prism 41, and the first prism 41 is a long strip prism 4, that is, a prismatic prism 4. For example, in this embodiment, the first prism 41 is a strip hexahedral prism 4 with a rectangular radial cross section.

[0082] The first driving unit 34 is arranged on one side of the placement mechanism 1, and the first positioning assembly 31 includes a first positioning end 311, which can be made into an L shape, and one side of the first positioning end 311 is connected to the output end of the first driving unit 34, and the first driving unit 34 can be a cylinder; the other end of the first positioning end 311 is in the same horizontal plane as the first prism 41 placed on the storage table 11. In some preferred embodiments, when the first positioning end 311 abuts against the first prism 41, the height of the first positioning end 311 is lower than the height of the first prism 41, so as to avoid interference with the processing tool during the processing. Optionally, the first positioning assembly 31 also includes a first connecting member, one side of the first connecting member is connected to the output end of the first driving unit 34, and the other side of the first connecting member is detachably connected to the first positioning end 311, so as to facilitate the disassembly and replacement of the first positioning end 311 when it is worn.

[0083] Please refer to Figure 3 The placement mechanism 1 includes a placement table 11 and a mounting portion 16. The placement mechanism 1 is connected to the rotating mechanism 2 through the mounting portion 16. The placement table 11 is vertically arranged on the mounting portion 16. The height of the placement table 11 from the mounting portion 16 can be set according to actual needs. For example, in the grinding process, the height of the placement table 11 from the mounting portion 16 has the meaning of raising the prism 4. Considering the size of the grinding knife, the placement mechanism 1 of different heights can be pre-set to raise the prism 4 to avoid the grinding knife interfering with other parts on the positioning mechanism 3. In this embodiment, the placement table 11 is used to place the long strip prism 4, so the shape of the placement table 11 is preferably designed to be rectangular, and the size needs to just accommodate the first prism 41. A first limiting portion 12 is provided on the placement table 11. The first limiting portion 12 is arranged on the placement table 11 along a first direction. The first direction here refers to a direction parallel to the longer side of the placement table 11, that is, a direction parallel to the length direction of the first prism 41. The first limiting portion 12 is used to limit the offset direction of the first prism 41 in the first direction.

[0084] In some embodiments, the number of the first limiting portion 12 is one, and the first limiting portion 12 and the first positioning end 311 should be arranged opposite to each other, so that a clamping space for clamping the first prism 41 can be formed between the first positioning end 311 and the first limiting portion 12. During the grinding process, the placement mechanism 1 for placing the first prism 41 needs to avoid interference with the grinding knife, and the first limiting portion 12 and the first positioning end 311 are preferably not higher than the height of the first prism 41 to avoid wear and tear during the grinding process and damage to the grinding knife.

[0085] The first driving unit 34 can drive the first positioning end 311 to perform telescopic movement along the first direction, and the first positioning end 311 is driven to approach the prism 4 and stop on the prism 4 to achieve the positioning of the prism 4. Figure 4, the arrow in the figure indicates the direction of movement of the part where the arrow is located. When positioning the first prism 41 in the first direction, the first driving unit 34 drives the first positioning end 311 forward, and the other side parallel to the side is pushed by the first positioning end 311 to stop on the first limiting portion 12 on the other side. At this time, the first positioning end 311 stops on the side of the first prism 41, and a clamping space is formed between the first positioning end 311 and the first limiting portion 12, and the first prism 41 is fixed in the clamping space. At this time, the first positioning component 31 is placed in the first stopping position. Taking the grinding process as an example, when the first prism 41 is in the first stopping position, the grinder can grind the edges of the first prism 41 in the length direction. Preferably, a double-sided grinder can be used to grind the two edges of the first prism 41 in the length direction to improve the grinding efficiency. After the processing process is completed, the first driving unit 34 drives the first positioning end 311 away from the side of the first prism 41, and the first positioning component 31 is in the first loose position. When the two edges on the other side need to be polished in actual needs, the rotating platform 21 can drive the first prism 41 to rotate to another direction along the arrow direction for subsequent polishing process.

[0086] By setting up the first positioning component 31 and the first driving mechanism, and utilizing the cooperation between the first limiting portion 12 and the first positioning component 31, the first prism 41 is limited in the first direction, which facilitates the processing operation of the first prism 41; at the same time, only a single-sided driving unit is required to fix the first prism 41, thereby reducing the design cost of the prism 4 positioning device.

[0087] Please refer to Figure 4 In some embodiments, a first through hole 121 is formed on the first limiting portion 12 , and when the first positioning component 31 is placed in the first stopping position, the first positioning end 311 passes through the first through hole 121 and stops on the prism 4 .

[0088] When the number of the first limiting portion 12 is one, the first limiting portion 12 can be U-shaped and arranged in a ring shape on the storage table 11. The opening direction of the first limiting portion 12 is arranged on the side where the long side of the first prism 41 is located, and the first prism 41 is placed in the first limiting portion 12. In this case, the first limiting portion 12 is capable of limiting the movement of the first prism 41 at both ends perpendicular to the first direction. The end of the first limiting portion 12 arranged on the side where the first positioning end 311 is located will block the first positioning end 311 from stopping on the side of the first prism 41. At this time, a first through hole 121 is opened on the first limiting portion 12, that is, the position where the first through hole 121 is opened should be on the same side as the first positioning end 311. At the same time, the first positioning end 311 should be smaller than the size of the first through hole 121, so that the first positioning end 311 can pass through the first through hole 121 and stop on the side of the first prism 41, thereby achieving better limitation of the first prism 41 on the storage table 11 while satisfying the requirement that the first positioning end 311 cooperates with the first limiting portion 12 to clamp the first prism 41.

[0089] Please refer to Figure 4 When the number of the first limiting parts 12 is two, the first limiting parts 12 are preferably arranged in the first direction to limit the displacement of the first prism 41 along the first direction, and the first limiting part 12 arranged on the side where the first positioning end 311 is located will block the first positioning end 311 from abutting against the side of the first prism 41. At this time, the first through hole 121 is provided on the first limiting part 12, that is, the position where the first through hole 121 is provided should be on the same side as the first positioning end 311, and at the same time, the first positioning end 311 should be smaller than the size of the first through hole 121, so that the first positioning end 311 can pass through the first through hole 121 and abut against the side of the first prism 41, thereby achieving better restriction of the first prism 41 on the storage table 11, while meeting the requirement that the first positioning end 311 cooperates with the first limiting part 12 to clamp the first prism 41.

[0090] When there are multiple first limiting portions 12, the first limiting portions 12 can be divided into two groups, and the two groups are arranged opposite to each other along the first direction. The multiple first limiting portions 12 in each group are arranged equidistantly. The first limiting portion 12 arranged on the side where the first positioning end 311 is located will block the first positioning end 311 from stopping on the side of the first prism 41. At this time, the first through hole 121 is opened on the first limiting portions 12 in the group, that is, the position where the first through hole 121 is opened should be on the same side as the first positioning end 311. At the same time, the first positioning end 311 should be designed to have a shape corresponding to the first through hole 121 of the group, so that the first positioning end 311 can pass through the first through hole 121 and stop on the side of the first prism 41, thereby achieving better restriction of the first prism 41 on the storage table 11 while satisfying the requirement that the first positioning end 311 cooperates with the first limiting portion 12 to clamp the first prism 41.

[0091] Please refer to Figure 4 In some preferred embodiments, in order to expand the contact area between the first positioning end 311 and the side surface of the first prism 41, thereby generating a larger resistance force and better fixing the first prism 41, the first positioning end 311 can be configured as Figure 4 The U-shape shown in the figure will generate two abutting fulcrums when the first positioning end 311 passes through the first through hole 121 and abuts against the side surface of the first prism 41. The distribution of the abutting force will also change from the lower position of the side surface of the first prism 41 to the distribution at the position of two-thirds from bottom to top of the side surface of the first prism 41. This makes it easier to balance the force on the first prism 41 and avoids excessive concentration of the abutting force on the lower part of the first prism 41, which may cause the first prism 41 to tilt during the abutting process, thereby affecting the processing accuracy.

[0092] Please refer to Figure 4 In some embodiments, the number of the first limiter 12 is two, and they are arranged opposite to each other along the first direction. When the number of the first limiter 12 is two, they are arranged on the storage table 11 along the first direction. The spacing between the two first limiters 12 should be slightly larger than the length of the first prism 41 to facilitate the insertion of the first prism 41. Optionally, the first limiter 12 is chamfered on one side close to the first prism 41 to facilitate the introduction of the first prism 41.

[0093] Please refer to Figure 2 , Figure 3 as well as Figure 5 In some embodiments, the positioning mechanism 3 further includes a second driving unit 35 and a second positioning assembly 32; the second positioning assembly 32 is arranged on the second driving unit 35, the second positioning assembly 32 includes a second positioning end 321, and the second driving mechanism drives the second positioning end 321 to perform telescopic movement along the second direction; the placement mechanism 1 further includes a second limiting portion 13, the second limiting portion 13 is arranged on the storage table 11 along the second direction, and the second limiting portion 13 is used to limit the prism 4 to be processed on the storage table 11 along the second direction; the second positioning assembly 32 can be placed in a second stop position or a second loose position under the drive of the second driving unit 35. When the second positioning assembly 32 is placed in the second stop position, the second positioning end 321 is driven by the second driving unit 35 to fit the side of the prism 4 to be processed, and the other side of the prism 4 is stopped on the second limiting portion 13. When the second positioning assembly 32 is placed in the second loose position, the second positioning end 321 is driven by the second driving unit 35 to separate from the side of the prism 4 to be processed.

[0094] The prism 4 includes a first prism 41, and the first prism 41 is a long strip prism 4, that is, a prismatic prism 4. For example, in this embodiment, the first prism 41 is a strip hexahedral prism 4 with a rectangular radial cross section.

[0095] Please refer to Figure 2 , the second drive unit 35 is arranged on one side of the placement mechanism 1. In some embodiments, the second drive unit 35 is arranged opposite to the first drive unit 34, which is convenient for saving space, more simple and beautiful. The second positioning component 32 includes a second positioning end 321, which can be made into an L shape, one side of the second positioning end 321 is connected to the output end of the second drive unit 35, and the second drive unit 35 can be a cylinder; the other end of the second positioning end 321 is in the same horizontal plane as the first prism 41 placed on the storage table 11. In some preferred embodiments, when the second positioning end 321 is stopped on the first prism 41, the height of the second positioning end 321 is lower than the height of the first prism 41, avoiding interference with the processing tool during the processing. Optionally, the second positioning component 32 also includes a second connecting member, one side of the second connecting member is connected to the output end of the second drive unit 35, and the other side of the second connecting member is detachably connected to the second positioning end 321, so as to facilitate the disassembly and replacement of the second positioning end 321 when it is worn.

[0096] Please refer to Figure 2 and Figure 5 As shown, in some embodiments, the second positioning end 321 can be set to a U shape, and the two ends of the second positioning end 321 just fit together with the two ends of the side of the first prism 41, so as to achieve the effect of resisting the first prism 41 along the second direction, while reducing the weight of the output end of the second driving unit 35, and it is more beautiful.

[0097] Please refer to Figure 3 In this embodiment, the placement table 11 is used to place the long strip prism 4, so the shape of the placement table 11 is preferably designed to be rectangular, and the size needs to just accommodate the first prism 41. A second limiter 13 is provided on the placement table 11, and the second limiter 13 is arranged on the placement table 11 along the second direction. Here, the second direction refers to a direction parallel to the shorter side of the placement table 11, that is, a direction parallel to the width direction of the first prism 41. The second limiter 13 is used to limit the offset direction of the first prism 41 in the second direction.

[0098] Please refer to Figure 5 In some embodiments, the number of the second limiter 13 is one, and the second limiter 13 and the second positioning end 321 should be arranged opposite to each other, so that a clamping space for clamping the first prism 41 can be formed between the second positioning end 321 and the second limiter 13. During the grinding process, the placement mechanism 1 for placing the first prism 41 should avoid interference with the grinding knife, and the second limiter 13 and the second positioning end 321 are preferably not higher than the height of the first prism 41 to avoid wear and tear during the grinding process and damage to the grinding knife.

[0099] Please refer to Figure 3In some embodiments, the second limiting portion 13 and the first limiting portion 12 are both arranged on the storage table 11, the second limiting portion 13 is arranged adjacent to the first limiting portion 12, and the second limiting portion 13 and the first limiting portion 12 form a certain angle, the size of the angle corresponds to the angle between the long edge and the side edge of the first prism 41, for example, when the first prism 41 is a regular hexagonal prism, the angle between the first limiting portion 12 and the second limiting portion 13 should be 120°. In this embodiment, the first prism 41 is a square prism, so when the first limiting portion 12 and the second limiting portion 13 are arranged adjacent to each other, the first limiting portion 12 and the second limiting portion 13 form an angle of 90°. The second limiting portion 13 can be arranged on one side of the first limiting portion 12, forming an L-shaped angle with the first limiting portion 12, and the second positioning end 321 should be arranged on the side opposite to the second limiting portion 13. Preferably, the second limiting portions 13 are disposed on both sides of the first limiting portion 12 to form a U-shaped angle, and are used to limit the rotation of the first prism 41 in the second direction.

[0100] The second driving unit 35 can drive the second positioning end 321 to perform telescopic movement along the second direction, and the positioning of the prism 4 is achieved by driving the second positioning end 321 to approach the prism 4 and stop on the prism 4. Figure 5 , the arrow in the figure indicates the direction of movement of the part where the arrow is located. When positioning the first prism 41 in the second direction, the second driving unit 35 drives the second positioning end 321 forward, and the other side parallel to the side is pushed by the second positioning end 321 to stop on the second limiting portion 13 on the other side. At this time, the second positioning end 321 stops on the side of the first prism 41, and a clamping space is formed between the second positioning end 321 and the second limiting portion 13, and the first prism 41 is fixed in the clamping space. At this time, the second positioning component 32 is placed in the second stopping position. Taking the grinding process as an example, when the first prism 41 is in the second stopping position, the grinder can grind the edges of the first prism 41 in the width direction. Preferably, a double-sided grinder can be used to grind the two edges of the first prism 41 in the width direction to improve the grinding efficiency. After the processing process is completed, the second driving unit 35 drives the second positioning end 321 away from the side of the first prism 41, and the second positioning component 32 is in the second loose position. When it is actually necessary to grind the two edges on the other side, the rotating table 21 can drive the first prism 41 to rotate to another direction for subsequent grinding process. For example, when it rotates to the first direction, the first positioning end 311 cooperates with the first limiting portion 12 to fix the first prism 41 in the first direction, and then the grinding work in the first direction can be performed.

[0101] By setting the second positioning component 32 and the second driving mechanism, the first prism 41 is limited in the second direction by the cooperation between the second limiting portion 13 and the second positioning component 32, so as to facilitate the processing operation of the first prism 41; at the same time, only one side of the driving unit is needed to fix the first prism 41, thereby reducing the design cost of the positioning device of the prism 4. In some preferred embodiments, the first positioning component 31, the first positioning mechanism 3 and the second positioning component 32, the second positioning mechanism 3 are equipped at the same time, so as to realize the automatic positioning of the prism 4 in the first direction and the second direction and the direction adjustment between the first direction and the second direction, thereby saving the time of manual adjustment, and realizing the precise positioning of the prism 4, thereby reducing the processing error.

[0102] Please refer to Figure 5 In some embodiments, a second through hole 131 is formed on the second limiting portion 13 , and when the second positioning component 32 is placed in the second stopping position, the second positioning end 321 passes through the second through hole 131 and stops on the prism 4 .

[0103] When the number of the second limiting portion 13 is one, the second limiting portion 13 can be U-shaped and annularly arranged on the storage table 11. The opening direction of the second limiting portion 13 is arranged on the side where the wide side of the first prism 41 is located, and the first prism 41 is placed in the second limiting portion 13. In this case, the second limiting portion 13 is capable of limiting the movement of the first prism 41 at both ends perpendicular to the second direction. The end of the second limiting portion 13 arranged on the side where the second positioning end 321 is located will block the second positioning end 321 from abutting against the side of the first prism 41. At this time, a second through hole 131 is opened on the second limiting portion 13, that is, the position where the second through hole 131 is opened should be on the same side as the second positioning end 321. At the same time, the second positioning end 321 should be smaller than the size of the second through hole 131, so that the second positioning end 321 can pass through the second through hole 131 and abut against the side of the first prism 41, thereby achieving better limitation of the first prism 41 on the storage table 11 while satisfying the requirement that the second positioning end 321 cooperates with the second limiting portion 13 to clamp the first prism 41.

[0104] When the number of the second limiting parts 13 is two, the second limiting parts 13 are preferably arranged in the second direction to limit the displacement of the first prism 41 along the second direction, and the second limiting part 13 arranged on the side where the second positioning end 321 is located will block the second positioning end 321 from abutting against the side of the first prism 41. At this time, the second through hole 131 is provided on the second limiting part 13, that is, the position where the second through hole 131 is provided should be on the same side as the second positioning end 321, and at the same time, the second positioning end 321 should be smaller than the size of the second through hole 131, so that the second positioning end 321 can pass through the second through hole 131 and abut against the side of the first prism 41, thereby achieving better restriction of the first prism 41 on the storage table 11, while meeting the requirement that the second positioning end 321 cooperates with the second limiting part 13 to clamp the first prism 41.

[0105] Please refer to Figure 5 When there are multiple second limiting portions 13, the second limiting portions 13 can be divided into two groups, the two groups are arranged opposite to each other along the second direction, and the multiple second limiting portions 13 in each group are arranged at equal distances. Figure 5 As shown, in the present embodiment, the number of the second limiting portions 13 is four, two second limiting portions 13 are arranged on one side of the first prism 41, and the other two second limiting portions 13 are arranged on the other side of the first prism 41, then the second limiting portion 13 arranged on the side where the second positioning end 321 is located will block the second positioning end 321 from abutting against the side of the first prism 41, at this time, a second through hole 131 is opened on each of the second limiting portions 13 in the group, that is, the position where the second through hole 131 is opened should be on the same side as the second positioning end 321, and at the same time, the second positioning end 321 should be designed to have a shape corresponding to the second through hole 131 of the group, so that the second positioning end 321 can pass through the second through hole 131 and abut against the side of the first prism 41, thereby achieving better restriction of the first prism 41 on the storage table 11 while satisfying the requirement that the second positioning end 321 cooperates with the second limiting portion 13 to clamp the first prism 41.

[0106] Please refer to Figure 5 In some preferred embodiments, in order to expand the contact area between the second positioning end 321 and the side of the first prism 41, thereby generating a larger resistance force and better fixing the first prism 41, the end of the second positioning end 321 that contacts the prism 41 can also be set to Figure 5 The U-shaped Figure 5When the second positioning end 321 passes through the second through hole 131 and abuts against the side surface of the first prism 41, a total of four abutting fulcrums are generated, and the distribution of the abutting force is changed from the lower position of the side surface of the first prism 41 to the position of two-thirds from bottom to top of the side surface of the first prism 41. This makes it easier to balance the force on the first prism 41 and avoids excessive concentration of the abutting force on the lower part of the first prism 41, which may cause the first prism 41 to tilt during the abutting process, thereby affecting the processing accuracy.

[0107] Please refer to Figure 3 In some embodiments, the platform 11 further has a first boss 111, which is disposed at both ends of the platform 11 and is used to raise the prism 4 to be processed. The first boss 111 can be disposed at both ends of the platform 11 along the first direction. By raising the first boss 111, the lower surface of the first prism 41 is suspended except for the edge, so as to prevent the debris on the platform 11 from scratching the lower surface of the first prism 41, thereby damaging the first prism 41.

[0108] Please refer to Figure 3 In some embodiments, the second limiting portion 13 is dispersed on both sides of the first limiting portion 12 and is relatively small in size. A fourth limiting portion 15 can be added on both sides of the second limiting portion 13. The number of the fourth limiting portions 15 is two, preferably in the shape of long strips, which are used to assist in limiting the first prism 41 in the second direction to avoid excessive displacement or flipping of the first prism 41 in the second direction during placement.

[0109] Please refer to Figures 6 to 9 In some embodiments, the positioning mechanism 3 further includes a third driving unit 36 ​​and a third positioning assembly 33; the third positioning assembly 33 is arranged on the third driving unit 36, the third positioning assembly 33 includes a third positioning end 331, and the third driving unit 36 ​​drives the third positioning end 331 to perform telescopic movement in the height direction; the placement mechanism 1 further includes a third limiting portion 14, the third limiting portion 14 is arranged on the storage table 11 in the height direction, and the third limiting portion 14 is used to limit the prism 4 to be processed on the storage table 11 in the height direction; the third positioning assembly 33 can be placed in a third stop position or a third loose position under the drive of the third driving unit 36. When the third positioning assembly 33 is placed in the third stop position, the third positioning end 331 is driven by the third driving unit 36 ​​to fit with the upper surface of the prism 4 to be processed, and the lower surface of the prism 4 is stopped on the third limiting portion 14. When the third positioning assembly 33 is placed in the third loose position, the third positioning end 331 is driven by the third driving unit 36 ​​to separate from the upper surface of the prism 4 to be processed.

[0110] The prism 4 includes a second prism 42, which is a block prism 4, which can be a polygonal block prism 4 or an irregular prism 4, as long as the upper surface and the lower surface of the second prism 42 are in a parallel state. In this embodiment, the second prism 42 is a square hexahedral prism 4, and the processing and positioning device described in this embodiment is used to process and position the second prism 42.

[0111] Please refer to Figure 6 , the third drive unit 36 ​​is arranged on one side of the placement mechanism 1. In some embodiments, the third drive unit 36 ​​can be arranged directly above the placement mechanism 1, or can be arranged on one side of the placement mechanism 1, so as to save space, be more simple and beautiful. The third positioning assembly 33 includes a third positioning end 331, and the third positioning end 331 can be made into an L shape. One side of the third positioning end 331 is connected to the output end of the third drive unit 36, and the third drive unit 36 ​​can be a cylinder; the other end of the third positioning end 331 is on the same central axis as the second prism 42 placed on the storage table 11. The central axis here refers to the central axis of the second prism 42 in the vertical direction. Optionally, the third positioning assembly 33 also includes a third connecting member, one side of the third connecting member is connected to the output end of the third drive unit 36, and the other side of the third connecting member is detachably connected to the third positioning end 331, so as to facilitate the disassembly and replacement of the third positioning end 331 when it is worn.

[0112] Please refer to Figure 8 The third driving unit 36 ​​specifically includes a third motor 361, a coupling 363, a screw assembly 362, a slide rail 365 and a sensor 364. The output end of the third motor 361 is connected to the screw assembly 362 through the coupling 363. The third connecting member is connected to the slide rail 365 and the screw assembly 362. The screw assembly 362 drives the third connecting member to move vertically in the height direction under the drive of the third motor 361. The slide rail 365 plays a role in supporting the third positioning assembly 33. The sensor 364 can be a photoelectric sensor 364 or a distance sensor 364. In this embodiment, a photoelectric counter-beam sensor 364 is selected, which is arranged on the side where the screw assembly 362 is located. By detecting the moving position of the nut seat on the screw, the moving position information of the third positioning assembly 33 is obtained.

[0113] Please refer to Figure 7The placement mechanism 1 includes a placement table 11 and a mounting portion 16. The placement mechanism 1 is connected to the rotating mechanism 2 through the mounting portion 16. The placement table 11 is vertically arranged on the mounting portion 16. The height of the placement table 11 from the mounting portion 16 can be set according to actual needs. For example, in the grinding process, the height of the placement table 11 from the mounting portion 16 has the meaning of raising the prism 4. Considering the size of the grinding knife, the placement mechanism 1 with different heights can be pre-set to raise the prism 4 to avoid the grinding knife interfering with other parts on the positioning mechanism 3. It is worth noting that the placement table 11 is used to place the second prism 42. Therefore, the structure of the placement table 11 in this embodiment is different from the structure of the placement table 11 for placing the first prism 41. The placement table 11 is provided with a third limiting portion 14, and the second prism 42 is placed on the third limiting portion 14. The clamping space formed in the height direction by the third limiting portion 14 and the third positioning end 331 can realize the clamping of the second prism 42 in the height direction, so that it is convenient for the processing equipment to process the second prism 42 in the circumferential direction.

[0114] Please refer to Fig. 9 The third positioning end 331 moves up and down in the height direction under the drive of the third driving unit 36. When the third positioning end 331 stops on the upper surface of the second prism 42, the second prism 42 is in a clamping state, that is, the third positioning component 33 is in the third stopping position. When the third positioning end 331 moves away from the upper surface of the second prism 42 under the drive of the third driving unit 36, the second prism 42 can be removed from the third limiting portion 14 or rotated. At this time, the third positioning component 33 is in a loose position.

[0115] Please refer to Fig. 9 In some embodiments, the rotating table 21 further has a second boss 211, and the placement mechanism 1 is correspondingly provided with a groove for the second boss 211 to be placed in. The second boss 211 can be used to guide the placement mechanism 1, strengthen the connection stability between the placement mechanism 1 and the second boss 211, increase the concentricity of the rotating table 21 and the placement mechanism 1, thereby improving the position accuracy of the prism 4 on the placement mechanism 1 and reducing the processing error.

[0116] Please refer to Figure 7 and Fig. 9 In some embodiments, the third limiting portion 14 is further provided with a third through hole 141 , one end of the third through hole 141 is connected to a negative pressure generator for adsorbing the prism 4 to be processed by negative pressure. Fig. 9 The arrow direction in the figure indicates the adsorption direction of the third through hole 141. The third through hole 141 passes through the rotating table 21 and the placement mechanism 1. The negative pressure generator is arranged below the rotating table 21 and communicates with the third through hole 141 through an air pipe. The third through hole 141 has negative pressure, which can adsorb the second prism 42 on the third limiting portion 14 to prevent the second prism 42 from rotating relative to the third limiting portion 14.

[0117] Please refer to Figure 7 and Fig. 9 In some embodiments, the four edges of the lower surface of the prism 4 all protrude from the third limit portion 14; the four edges of the upper surface of the prism 4 all protrude from the third positioning end 331. During the side processing of the second prism 42, it is very easy for the tool to interfere with the storage table 11 or the third limit portion 14, or even the third positioning end 331. In order to reduce the interference between the processing tool and other positioning parts, the four edges of the lower surface of the second prism 42 all protrude from the third limit portion 14; the four edges of the upper surface of the second prism 42 all protrude from the third positioning end 331, which is convenient for processing. For example, in the grinding process, the placement mechanism 1 for placing the second prism 42 needs to avoid interference with the grinding tool. The four edges of the lower surface of the second prism 42 all protrude from the third limit portion 14; the four edges of the upper surface of the second prism 42 all protrude from the third positioning end 331 to avoid wear during the grinding process and damage to the grinding tool.

[0118] The applicant also provides an optical prism 4 polishing device, which is provided with the optical prism 4 processing and positioning device mentioned above. Through the cooperation between the optical prism 4 processing and positioning device and the polishing device, the automatic polishing operation of the optical prism 4 is realized, thereby improving the polishing efficiency and polishing accuracy of the optical prism 4.

[0119] The above embodiment sets a placement mechanism 1, a rotating mechanism 2 and a positioning mechanism 3, and sets the placement mechanism 1 on the rotating mechanism 2. The prism 4 is placed on the placement mechanism 1. The rotating mechanism 2 can then drive the prism 4 on the placement mechanism 1 to rotate, thereby realizing the requirement of automatically adjusting the processing direction of the prism 4. The positioning mechanism 3 cooperates with the placement mechanism 1 to ensure that the prism 4 is in the same horizontal plane before and after turning, thereby realizing precise positioning of the prism 4 before and after turning, and avoiding the prism 4 from being offset during the processing. At the same time, the direction adjustment of the prism 4 is changed from manual to automatic, thereby shortening the processing direction adjustment time of the prism 4, thereby improving the processing efficiency of the prism 4.

[0120] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. An optical prism processing and positioning device, characterized in that: include: The placement mechanism comprises a limiting portion and a placement table, wherein the limiting portion is arranged on the placement table, and the placement table is used to place the prism to be processed; A rotating mechanism, on which the placing mechanism is detachably arranged, and the rotating mechanism is used to drive the placing mechanism to rotate under the drive of the driving mechanism; The positioning mechanism comprises a positioning component and a driving unit, wherein the positioning component comprises a positioning end, and the positioning component can be placed in a stop position or a release position under the drive of the driving unit. When the positioning component is placed in the stop position, the positioning end is driven by the driving unit to fit the side surface of the prism to be processed, and the other side of the prism is stopped on the limiting portion. When the positioning component is placed in the release position, the positioning end is driven by the driving unit to separate from the side surface of the prism to be processed. The positioning mechanism also includes: a first drive unit; A first positioning assembly is arranged on the first driving unit, the first positioning assembly comprises a first positioning end, and the first driving mechanism drives the first positioning end to perform telescopic movement along a first direction; The placement mechanism also includes: A first limiting portion is disposed on the placement table along the first direction, and the first limiting portion is used to limit the prism to be processed on the placement table along the first direction; The first positioning component can be placed in a first stop position or a first release position under the drive of the first driving unit. When the first positioning component is placed in the first stop position, the first positioning end is abutted against the side surface of the prism to be processed under the drive of the first driving unit, and the other side of the prism is stopped on the first limiting portion. When the first positioning component is placed in the first release position, the first positioning end is separated from the side surface of the prism to be processed under the drive of the first driving unit. The first limiting portion is provided with a first through hole. When the first positioning component is placed at the first stopping position, the first positioning end passes through the first through hole and stops on the prism.

2. The optical prism processing and positioning device according to claim 1, characterized in that: The number of the first limiting parts is two, and they are arranged opposite to each other along the first direction.

3. The optical prism processing and positioning device according to claim 1, characterized in that: The positioning mechanism also includes: A second drive unit; A second positioning assembly is arranged on the second driving unit, the second positioning assembly comprises a second positioning end, and the second driving mechanism drives the second positioning end to perform telescopic movement along a second direction; The placement mechanism also includes: A second limiting portion is arranged on the placement table along the second direction, and the second limiting portion is used to limit the prism to be processed on the placement table along the second direction; The second positioning component can be placed in a second stopping position or a second releasing position under the drive of the second driving unit. When the second positioning component is placed in the second stopping position, the second positioning end is driven by the second driving unit to fit the side of the prism to be processed, and the other side of the prism is stopped on the second limiting portion. When the second positioning component is placed in the second releasing position, the second positioning end is driven by the second driving unit to disengage from the side of the prism to be processed.

4. The optical prism processing and positioning device according to claim 3, characterized in that: The second limiting portion is provided with a second through hole. When the second positioning assembly is placed at the second stopping position, the second positioning end passes through the second through hole and stops on the prism.

5. The optical prism processing and positioning device according to claim 3, characterized in that: The platform also has a first boss, which is arranged at both ends of the platform and is used to raise the prism to be processed.

6. The optical prism processing and positioning device according to claim 1, characterized in that: The positioning mechanism also includes: A third drive unit; A third positioning assembly is arranged on the third driving unit, the third positioning assembly comprises a third positioning end, and the third driving unit drives the third positioning end to perform telescopic movement in the height direction; The placement mechanism also includes: A third limiting portion is arranged on the placement table along the height direction, and the third limiting portion is used to limit the prism to be processed on the placement table along the height direction; The third positioning component can be placed in a third stopping position or a third releasing position under the drive of the third driving unit. When the third positioning component is placed in the third stopping position, the third positioning end is driven by the third driving unit to fit with the upper surface of the prism to be processed, and the lower surface of the prism is stopped on the third limiting portion. When the third positioning component is placed in the third releasing position, the third positioning end is driven by the third driving unit to separate from the upper surface of the prism to be processed.

7. The optical prism processing and positioning device according to claim 6, characterized in that: The third limiting portion is also provided with a third through hole, one end of which is connected to a negative pressure generator for adsorbing the prism to be processed by negative pressure.

8. The optical prism processing and positioning device according to claim 7, characterized in that: The four edges of the lower surface of the prism all protrude from the third limiting portion; The four edges of the upper surface of the prism all protrude from the third positioning end.

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