Fixing tool of optical prism milling and grinding machine

Abstract

The invention belongs to the technical field of optical prism processing, and discloses a fixing tool of an optical prism milling and grinding machine, the fixing tool comprises a base, the top of the base is slidably provided with a movable frame, the side surface of the movable frame is rotatably provided with a rotating assembly, and the side surface of the movable frame is fixedly provided with a control assembly. When bearing downward pressure of a machining end, the triangular prism fixed through the two ends is effectively prevented from deviating downwards, the machining fixing stability is improved, the machining precision is improved, meanwhile, auxiliary clamping is achieved through the multiple sets of telescopic fixing assemblies and multiple contact lines, the fixing assemblies can be pushed to contract when a grinding block moves transversely during grinding treatment, and the machining precision is improved. When the shielding surface during clamping is opened and the shielding surface is automatically opened, surface machining is synchronously completed, stable clamping and fixing are maintained, meanwhile, comprehensive grinding and machining treatment is achieved in cooperation with pushing and extruding of the grinding blocks to the clamping columns, comprehensive grinding is achieved while stability is guaranteed, and the machining and fixing effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of optical prism processing, and in particular relates to a fixing tool for an optical prism milling machine. Background Art

[0002] An optical prism is an optical element with a specific geometric shape, usually made of transparent materials (such as optical glass, plastic, etc.). Its main function is to manipulate light through optical phenomena such as refraction, reflection or dispersion. Optical prisms are widely used in optical instruments, lighting systems, optical communications, laser technology and other fields. For the processing of optical prisms, milling and grinding machines are usually used in conjunction with fixed work to achieve milling and grinding.

[0003] The fixed tooling of the optical prism milling machine in the prior art, especially for the processing of prisms, needs to clamp and fix the prism from both ends, and cooperate with the rotation control to adjust different processing surfaces upward, and cooperate with the milling of the milling machine to complete the milling work. However, when clamping and fixing, a clamping operation under pressure from both ends is usually adopted, so that when the top of the prism is processed, the processing end has a downward force on the top of the prism. At present, when clamping at both ends, it is easy to slide and deviate when subjected to downward processing pressure, affecting the processing accuracy. Moreover, when the current adaptive prism three-sided auxiliary clamping is used, the clamping surface blocks the processing surface of the prism surface, causing the problem of obstruction of the processing surface, reducing the actual processing area, and failing to achieve comprehensive processing. Summary of the invention

[0004] The object of the present invention is to provide a fixing fixture for an optical prism milling machine to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fixed tooling of an optical prism milling machine, comprising a base, a movable frame is slidably installed on the top of the base, a rotating assembly is rotatably installed on the side of the movable frame, a control assembly is fixedly provided on the side of the movable frame, the control assembly controls the reciprocating rotation of the rotating assembly, a support cylinder is fixedly provided at one end of the rotating assembly, a negative pressure assembly is provided inside the support cylinder, an adjusting assembly is fixedly connected to the outer surface of the support cylinder, the bottom of the adjusting assembly is communicated with the support cylinder, a fixed assembly is fixedly provided on the side of the adjusting assembly, the negative pressure assembly controls the surrounding fixed assemblies to synchronously move closer and farther away through the adjusting assembly, a suction assembly is fixedly provided on the outer surface of the support cylinder, and the suction assembly is communicated with the fixed assembly. The number of the fixing components is six, and each of the six fixing components forms a group of three, which are divided into two groups on the left and right. The fixing components are distributed correspondingly to the two ends of the three faces of the prism.

[0006] Preferably, the fixing assembly includes a connecting plate, a side tube, a clamping column and a second spring, the side tube is fixedly connected to the front side of the connecting plate, one end of the clamping column is movably sleeved in the side tube, one end of the second spring is fixedly connected in the side tube and fixedly connected to the clamping column, and a middle hole is provided inside the clamping column, which is connected to the connecting plate through the side tube.

[0007] Preferably, a threaded shaft is rotatably provided inside the base, and the threaded shaft is threadably sleeved with the movable frame. A power unit is provided at the end of the base, and the power unit drives the threaded shaft to rotate and controls the two sets of movable frames to approach and move away synchronously.

[0008] Preferably, the rotating assembly includes a rotating column, a connecting plate and a gear, the outer surface of the rotating column is fixedly sleeved with a retaining ring, the rotating column is rotatably sleeved in the movable frame through the retaining ring, the gear is fixedly sleeved on the outer surface of the rotating column, the connecting plate is fixedly connected to the end of the rotating column and is fixedly connected to the support tube.

[0009] Preferably, the control assembly includes a toothed plate, a mounting frame and an electric push rod, the mounting frame is fixedly connected to the side of the movable frame, the electric push rod is fixedly installed in the mounting frame, and the movable end is fixedly connected to the toothed plate, and the toothed plate is meshingly connected to the gear.

[0010] Preferably, an internal cavity is opened inside the support cylinder, a control motor is fixedly provided at one end of the support cylinder, the negative pressure assembly comprises a threaded rod, a piston sleeve, a fixing ring, a limiting tube, a limiting rod and a through hole, the fixing ring is fixedly sleeved in the internal cavity, the threaded rod is rotatably sleeved with the fixing ring, the piston sleeve is threadedly sleeved on the outer surface of the threaded rod, the limiting tube is fixedly connected to the inner side surface of the fixing ring and is communicated with the through hole opened on the outer side surface of the fixing ring, the limiting rod is fixedly connected to the front side of the piston sleeve, and the limiting rod is movably sleeved in the limiting tube.

[0011] Preferably, the adjustment component includes a fixed frame, a sliding block, a spring 1, a fixed tube, a push rod and a slide groove. The fixed frame is fixedly connected to the outer surface of the support tube. There are three adjustment components on the outer surface of the support tube. The sliding block is slidably sleeved in the fixed frame. One end of the spring 1 is fixedly connected to the inside of the fixed frame, and the other end is fixedly connected to the top of the sliding block. The fixed tube is fixedly sleeved in the inside of the fixed frame, and the lower end of the fixed tube passes through the fixed frame and is sleeved in the inside of the support tube and is connected to the internal cavity. The push rod is fixedly connected to the bottom surface of the sliding block and movably sleeved in the inside of the fixed tube. The slide groove is opened on the back side of the fixed frame.

[0012] Preferably, one end of the sliding block is fixedly connected to the connecting plate, and a connecting hole is provided inside the sliding block, and the connecting hole is connected to the connecting plate.

[0013] Preferably, the suction assembly includes a vacuum pump, a connecting ring and an air pipe, the connecting ring is fixedly sleeved on the outer surface of the support tube, the vacuum pump is fixedly installed on the outer surface of the support tube, the suction end of the vacuum pump is fixedly connected and communicated with the connecting ring, one end of the air pipe is fixedly connected and communicated with the connecting ring, the other end of the air pipe is fixedly connected and communicated with the sliding block, and the air pipe sliding sleeve is arranged in the sliding groove.

[0014] Preferably, the connecting plate includes a frame, a filter part and a closing cover, the cross-section of the filter part is "concave", the front side of the filter part is provided with filter holes, the filter part is movably sleeved in the frame, the closing cover is fixedly connected to the end of the filter part and is magnetically attracted to the end of the frame, the front side of the frame is fixed and connected to the side tube, the back side of the frame is fixed and connected to the sliding block, the concave surface of the filter part faces the side tube, and the inner end of the filter part is provided with a baffle.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention utilizes the position arrangement of the fixing components and cooperates with the negative pressure suction of the negative pressure components to control the synchronous approach and separation of the fixing components matched with the three surfaces of the prism. In the process of approaching, the three surfaces of the prism are auxiliary clamped and fixed, so that when the downward pressure of the processing end is subjected to, the downward deviation of the prism fixed on both ends is effectively avoided, the stability of the processing fixation is improved, and the processing accuracy is improved. At the same time, the multiple groups of retractable fixing components rely on multiple contact lines to achieve auxiliary clamping. During the grinding process, the grinding block can move and shift horizontally to push the fixing components to shrink, open the shielding surface during clamping, and complete the surface processing synchronously when it is automatically opened. While maintaining stable clamping and fixing, the grinding block cooperates with the pushing and squeezing of each group of clamping columns to achieve comprehensive grinding processing, ensuring stability while achieving comprehensive grinding, and the processing fixation effect is good.

[0016] 2. The present invention can realize adaptive clamping and fixing for prisms of different sizes by using a fixed component that can be synchronously moved closer and farther, and can achieve the above-mentioned balance between stability and comprehensive polishing for prisms of different sizes. It can achieve the synchronous effect of comprehensive polishing and enhanced stability, and is greatly applied to different sizes, thereby expanding the scope of application and greatly improving versatility. At the same time, with the rotation effect of the rotating component, it can quickly adapt to the angle of the prism for rapid clamping, and can also rotate and adjust the processing angle and processing surface under clamping. It has good comprehensive effect in actual use and high versatility.

[0017] 3. The present invention utilizes the cavity characteristics in the fixed component. When switching the processing surfaces of different prisms, the corresponding fixed components can perform adaptive instant suction processing, without repeatedly adjusting the suction direction and the suction device. The processing of the prism can effectively and fully realize dust reduction processing, which greatly improves the actual dust reduction processing effect. By utilizing the concave filter part set in the connecting plate, internal dust filtration can be realized. By pulling the filter part out of the frame, the separation processing of the filtered dust can be realized. With the magnetic suction effect, the actual separation operation is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the installation of the rotating assembly and the movable frame of the present invention; Figure 3 It is a schematic diagram of the engagement of the rotating assembly and the control assembly of the present invention; Figure 4 It is a cross-sectional schematic diagram of the support cylinder and the adjustment assembly of the present invention; Figure 5 It is an exploded schematic diagram of the negative pressure assembly of the present invention; Figure 6 is a cross-sectional schematic diagram of a fixing assembly of the present invention; Figure 7 is a cross-sectional schematic diagram of the adjustment assembly of the present invention; Figure 8 is a schematic diagram of a suction assembly of the present invention; Fig. 9 This is an exploded schematic diagram of the connecting plate in Example 3 of the present invention.

[0019] In the figure: 1. base; 2. movable frame; 3. rotating component; 31. rotating column; 32. connecting plate; 33. gear; 4. control component; 41. tooth plate; 42. mounting frame; 43. electric push rod; 5. support cylinder; 6. adjustment component; 61. fixed frame; 62. sliding block; 63. spring one; 64. fixed pipe; 65. push rod; 66. slide groove; 7. fixed component; 71. connecting plate; 72. side pipe; 73. clamping column; 74. spring two; 8. control motor; 9. negative pressure component; 91. threaded rod; 92. piston sleeve; 93. fixing ring; 94. limiting pipe; 95. limiting rod; 96. through hole; 10. suction component; 101. vacuum pump; 102. connecting ring; 103. air pipe; 11. internal cavity; 12. frame; 13. filter part; 14. closing cover. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figures 1 to 9 As shown, an embodiment of the present invention provides a fixed tooling for an optical prism milling machine, including a base 1, a movable frame 2 is slidably installed on the top of the base 1, a rotating assembly 3 is rotatably installed on the side of the movable frame 2, a control assembly 4 is fixedly installed on the side of the movable frame 2, the control assembly 4 controls the reciprocating rotation of the rotating assembly 3, a support cylinder 5 is fixedly installed at one end of the rotating assembly 3, a negative pressure assembly 9 is arranged inside the support cylinder 5, an adjusting assembly 6 is fixedly connected to the outer surface of the support cylinder 5, the bottom of the adjusting assembly 6 is communicated with the support cylinder 5, a fixing assembly 7 is fixedly arranged on the side of the adjusting assembly 6, the negative pressure assembly 9 controls the surrounding fixing assemblies 7 to synchronously move closer and farther away through the adjusting assembly 6, a suction assembly 10 is fixedly arranged on the outer surface of the support cylinder 5, and the suction assembly 10 is communicated with the fixing assembly 7, There are six fixing components 7 , and each of the six fixing components 7 is grouped into three, which are divided into two groups on the left and right. The fixing components 7 are distributed correspondingly to the two ends of the three surfaces of the prism.

[0022] Embodiment 1: When in use, place the prism in the fixed fixture and keep the prism between the two groups of movable frames 2, start the electric push rod 43 in the control component 4, push the tooth plate 41 to move horizontally, and drive the meshing gear 33 to rotate, so that the rotating component 3 rotates, so that the support tube 5 rotates, and drives the three groups of fixed components 7 outside the support tube 5 to rotate, so that the fixed components 7 are distributed corresponding to the three faces on the prism, start the power unit on the base 1, and control the two groups of movable frames 2 to move closer, so that the support tubes 5 on both sides are clamped along the two ends of the prism to complete the initial fixation, then start the negative pressure component 9, control the motor 8 to drive the threaded rod 91 in the negative pressure component 9 to rotate, so that the piston sleeve 92 moves horizontally along the internal cavity 11, and sucks the gas in the fixed tube 64 in the adjustment component 6, so that the air pressure in the internal cavity 11 is reduced. At the same time, the sliding block 62 drives the push rod 65 to slide downward along the fixed tube 64 under the action of the negative pressure. As the spring 63 is stretched, The sliding block 62 drives the fixedly connected fixing component 7 to move, and the fixing component 7 distributed around the outside of the prism moves and approaches, and the clamping column 73 is clamped on the outer surface of the prism, and the three surfaces of the prism are wrapped and clamped to complete the fixing process. The control component 4 is started again to perform rotation control, and the processing surface of the clamped and fixed prism is rotated upward. When the top external milling machine processes the prism, pressure acts on the prism, and the fixing component 7 remains stable and does not deviate. When grinding, the grinding block moves along the surface of the prism for grinding. When the grinding block moves horizontally and contacts the clamping column 73, the corresponding clamping column 73 is pushed to move the compression spring 2 74 along the side tube 72. The clamping column 73 automatically moves away and opens the shielding position to complete the synchronous grinding, and the corresponding clamping column 73 is pushed to be compressed and hidden. The other clamping columns 73 that are not in contact with the grinding block maintain the clamping action, and while stably clamping, the comprehensive processing of the prism surface is completed.

[0023] Firstly, by utilizing the position arrangement of the fixing component 7 and cooperating with the negative pressure suction of the negative pressure component 9, the fixing component 7 matched with the three surfaces of the prism is controlled to approach and move away synchronously, and auxiliary clamping and fixing are realized for the three surfaces of the adapted prism during the approaching action, so as to effectively avoid the downward deviation of the prism fixed at both ends when bearing the downward pressure of the processing end, thereby improving the stability of processing fixation and improving the processing accuracy. At the same time, the retractable multiple groups of fixing components 7 rely on multiple contact lines to realize auxiliary clamping, and the fixing component 7 can be pushed to contract when the grinding block moves horizontally during the grinding process, and the shielding surface during clamping can be opened. The surface processing is completed synchronously when it is automatically opened, and while maintaining stable clamping and fixing, the grinding block pushes and squeezes each group of clamping columns 73 to realize comprehensive grinding and processing, ensuring stability while realizing comprehensive grinding, and the processing and fixing effect is good.

[0024] In addition, by using the fixing component 7 that can be synchronously moved closer and farther, adaptive clamping and fixing can be achieved for prisms of different sizes, and the above-mentioned balance between stability and comprehensive polishing can be achieved for prisms of different sizes. The synchronous effect of comprehensive polishing and enhanced stability can be greatly applied to different sizes, which expands the scope of application and greatly improves the versatility. At the same time, with the rotation effect of the rotating component 3, the angle of the prism can be quickly adapted to clamp quickly, and the processing angle and processing surface can be rotated and adjusted under clamping. The comprehensive effect of actual use is good and the versatility is high.

[0025] Embodiment 2: When performing processing after fixation, keep the suction component 10 started, and the vacuum pump 101 sucks the air inside the sliding block 62 through the connecting ring 102 and the air pipe 103, and directly sucks toward the processing surface through the internal hole of the clamping column 73 in the fixing component 7, so as to inhale the dust generated by the processing to avoid air pollution in the processing area caused by the dust flying in the air. At the same time, in conjunction with the cavity characteristics in the fixing component 7, when switching the processing surface of different prisms, the corresponding fixing component 7 can perform adaptive instant suction processing.

[0026] First, by utilizing the cavity characteristics in the fixed component 7, when switching the processing surfaces of different prisms, the corresponding fixed component 7 can perform adaptive instant suction processing without repeatedly adjusting the suction direction and the suction device. For the processing of the prism, the dust reduction processing can be effectively and fully realized, which greatly improves the actual dust reduction processing effect.

[0027] Embodiment 3: A filter portion 13 is sleeved in the connecting plate 71, and the sleeve opening end of the connecting plate 71 is sealed with a closing cover 14. During processing, dust is sucked into the connecting plate 71 and filtered in the filter portion 13. When the filtered material needs to be cleaned out, the closing cover 14 is pulled outward to complete the magnetic separation, and then the concave filter portion 13 cooperates with the internal baffle to automatically push out the internal filtered material.

[0028] Firstly, by utilizing the concave filter part 13 set in the connecting plate 71, internal dust filtering is realized, and at the same time, the filter part 13 is pulled outward from the frame 12 to separate the filtered dust. With the magnetic attraction effect, the actual separation operation is simple and convenient to use.

[0029] Among them, the fixing component 7 includes a connecting plate 71, a side tube 72, a clamping column 73 and a second spring 74. The side tube 72 is fixedly connected to the front side of the connecting plate 71, one end of the clamping column 73 is movably sleeved in the side tube 72, one end of the second spring 74 is fixedly connected in the side tube 72 and fixedly connected to the clamping column 73. An intermediate hole is provided inside the clamping column 73, and the intermediate hole is connected to the connecting plate 71 through the side tube 72.

[0030] By utilizing multiple groups of clamping columns 73 in the fixing assembly 7 and cooperating with the contact clamping of the three surfaces of the prism, a stable clamping operation is completed, and the clamping column 73 connected to the side tube 72 through the spring 2 74 can be conveniently pressed and pushed into the side tube 72 to achieve partial hiding, open the shielding surface, and complete the processing of the corresponding prism surface.

[0031] The base 1 is internally rotatably provided with a threaded shaft, which is threadedly sleeved with the movable frame 2. The end of the base 1 is provided with a power unit, which drives the threaded shaft to rotate and controls the two sets of movable frames 2 to approach and move away synchronously.

[0032] The power unit is used to drive the threaded shaft to rotate, thereby realizing the movement control of the movable frame 2, thereby realizing the synchronous approach and separation of the movable frame 2, and further driving the support tube 5 to realize the clamping and fixing of the prism.

[0033] Among them, the rotating component 3 includes a rotating column 31, a connecting plate 32 and a gear 33. A retaining ring is fixedly sleeved on the outer surface of the rotating column 31. The rotating column 31 is rotatably sleeved in the movable frame 2 through the retaining ring. The gear 33 is fixedly sleeved on the outer surface of the rotating column 31. The connecting plate 32 is fixedly connected to the end of the rotating column 31 and is fixedly connected to the support tube 5. The control component 4 includes a tooth plate 41, a mounting frame 42 and an electric push rod 43. The mounting frame 42 is fixedly connected to the side of the movable frame 2. The electric push rod 43 is fixedly installed in the mounting frame 42, and the movable end is fixedly connected to the tooth plate 41, and the tooth plate 41 is meshingly connected to the gear 33.

[0034] By utilizing the rotating component 3 to achieve stable rotation, the control component 4 is used to drive the reciprocating rotation of the meshing rotating component 3, thereby driving the rotation control of the support tube 5, adapting to processing at different angles, and adapting to the assembly of the prism. The retaining ring makes the rotating component 3 stable and avoids lateral deviation.

[0035] Among them, an internal cavity 11 is opened inside the support cylinder 5, and a control motor 8 is fixedly installed at one end of the support cylinder 5. The negative pressure component 9 includes a threaded rod 91, a piston sleeve 92, a fixing ring 93, a limiting tube 94, a limiting rod 95 and a through hole 96. The fixing ring 93 is fixedly sleeved in the internal cavity 11, the threaded rod 91 and the fixing ring 93 are rotatably sleeved, the piston sleeve 92 is threadedly sleeved on the outer surface of the threaded rod 91, the limiting tube 94 is fixedly connected to the inner side surface of the fixing ring 93, and is connected to the through hole 96 opened on the outer side surface of the fixing ring 93, the limiting rod 95 is fixedly connected to the front side of the piston sleeve 92, and the limiting rod 95 is movably sleeved in the limiting tube 94.

[0036] By utilizing the negative pressure component 9 to control the internal negative pressure of the internal cavity 11, the negative pressure effect is utilized to realize the lifting and lowering of the adjustment component 6. The threaded rod 91 rotates to cause the piston sleeve 92 to move laterally. The limiting tube 94 is movably connected with the limiting rod 95 to ensure the stable movement of the piston sleeve 92 and avoid following rotation.

[0037] Among them, the adjustment component 6 includes a fixed frame 61, a sliding block 62, a spring 63, a fixed tube 64, a push rod 65 and a slide groove 66. The fixed frame 61 is fixedly connected to the outer surface of the support tube 5. There are three adjustment components 6 on the outer surface of the support tube 5. The sliding block 62 is slidably sleeved in the fixed frame 61. One end of the spring 63 is fixedly connected to the inside of the fixed frame 61, and the other end is fixedly connected to the top of the sliding block 62. The fixed tube 64 is fixedly sleeved in the inside of the fixed frame 61, and the lower end of the fixed tube 64 passes through the fixed frame 61 and is sleeved in the inside of the support tube 5, and is connected to the internal cavity 11. The push rod 65 is fixedly connected to the bottom surface of the sliding block 62 and movably sleeved in the inside of the fixed tube 64. The slide groove 66 is opened on the back of the fixed frame 61.

[0038] The adjustment component 6 uses the negative pressure effect to make the sliding block 62 move up and down along the inside of the fixed frame 61. The spring 63 uses the elastic effect to facilitate automatic reset. The slide groove 66 adapts to the sliding of the air pipe 103 to provide moving space. The push rod 65 slides and sleeves along the fixed tube 64 to achieve negative pressure.

[0039] One end of the sliding block 62 is fixedly connected to the connecting plate 71 , and a connecting hole is provided inside the sliding block 62 , which is connected to the connecting plate 71 .

[0040] Among them, the suction assembly 10 includes a vacuum pump 101, a connecting ring 102 and an air pipe 103. The connecting ring 102 is fixedly sleeved on the outer surface of the support tube 5, and the vacuum pump 101 is fixedly installed on the outer surface of the support tube 5. The suction end of the vacuum pump 101 is fixedly connected and communicated with the connecting ring 102, one end of the air pipe 103 is fixedly connected and communicated with the connecting ring 102, and the other end of the air pipe 103 is fixedly connected and communicated with the sliding block 62, and the air pipe 103 is slidably sleeved in the sliding groove 66.

[0041] The suction component 10 provides a vacuum suction function, and cooperates with the connecting ring 102, the air pipe 103 and the sliding block 62 to communicate with the fixed component 7, and directly sucks dust toward the processing surface through the fixed component 7 to achieve dust reduction treatment.

[0042] Among them, the connecting plate 71 includes a frame 12, a filter part 13 and a closing cover 14. The cross-section of the filter part 13 is "concave". The front side of the filter part 13 is provided with filter holes. The filter part 13 is movably sleeved in the frame 12. The closing cover 14 is fixedly connected to the end of the filter part 13 and is magnetically attracted to the end of the frame 12. The front side of the frame 12 is fixed and connected to the side tube 72. The back side of the frame 12 is fixed and connected to the sliding block 62. The concave surface of the filter part 13 faces the side tube 72. A baffle is provided at the inner end of the filter part 13.

[0043] The filter part 13 is provided inside the connecting plate 71 and is fixed by magnetic attraction with the closing cover 14, so that the inhaled dust can be filtered and the filtered dust can be easily cleaned out, thereby improving the self-cleaning effect and maintaining a long-term filtering operation.

[0044] The working process and use process of the present invention are as follows: when in use, the prism is placed in a fixed tooling and the prism is kept between two groups of movable frames 2, the electric push rod 43 in the control component 4 is started, the tooth plate 41 is pushed to move horizontally, and the meshing gear 33 is driven to rotate, so that the rotating component 3 rotates, the supporting cylinder 5 rotates, and the three groups of fixed components 7 outside the supporting cylinder 5 are driven to rotate, so that the fixed components 7 are distributed correspondingly to the three faces on the prism, the power unit on the base 1 is started, and the two groups of movable frames 2 are controlled to move closer, so that the supporting cylinders 5 on both sides are clamped close to each other along the two ends of the prism to complete the initial fixation, and then the power unit on the base 1 is started. The negative pressure component 9 controls the motor 8 to drive the threaded rod 91 in the negative pressure component 9 to rotate, so that the piston sleeve 92 moves horizontally along the internal cavity 11 and sucks the gas in the fixed tube 64 in the adjustment component 6, so that the air pressure in the internal cavity 11 is reduced. Under the action of the negative pressure, the sliding block 62 drives the push rod 65 to slide downward along the fixed tube 64. As the spring 63 is stretched, the sliding block 62 drives the fixedly connected fixed component 7 to move, and the fixed component 7 distributed around the outside of the prism moves and approaches, and the clamping column 73 is clamped on the outer surface of the prism, and the three surfaces of the prism are wrapped and clamped to complete the fixing. The control assembly 4 is started again to perform rotation control, and the processing surface of the clamped prism is rotated upward. When the top external milling machine processes the prism, pressure is applied to the prism, and the fixing assembly 7 remains stable and does not deviate. When the grinding block moves along the surface of the prism for grinding, when the grinding block moves laterally and contacts the clamping column 73, the corresponding clamping column 73 is pushed to move along the side tube 72 to compress the spring 2 74, and the clamping column 73 automatically moves away and opens the shielding position to complete the synchronous grinding, and the corresponding clamping column 73 is pushed to be compressed and hidden, and other clamping columns 73 that are not in contact with the grinding block remain The clamping action completes the comprehensive processing of the prism surface while stably clamping; when performing processing after fixation, keep the suction component 10 started, and the vacuum pump 101 sucks the air inside the sliding block 62 through the connecting ring 102 and the air pipe 103, and directly sucks toward the processing surface through the internal hole of the clamping column 73 in the fixed component 7, and inhales the dust generated by the processing to avoid flying in the air and causing air pollution in the processing area. At the same time, in conjunction with the cavity characteristics in the fixed component 7, when switching the processing surfaces of different prisms, the corresponding fixed component 7 can perform adaptive instant suction processing.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that numerous changes, modifications, substitutions and alterations may be made to the embodiments without departing from the spirit and scope of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing device for an optical prism milling machine, comprising a base (1), characterized in that: A movable frame (2) is slidably mounted on the top of the base (1); a rotating assembly (3) is rotatably mounted on the side of the movable frame (2); a control assembly (4) is fixedly mounted on the side of the movable frame (2); the control assembly (4) controls the rotating assembly (3) to reciprocate; a support tube (5) is fixedly mounted on one end of the rotating assembly (3); a negative pressure assembly (9) is disposed inside the support tube (5); an adjustment assembly (6) is fixedly connected to the outer surface of the support tube (5); the bottom of the adjustment assembly (6) is communicated with the support tube (5); a fixed assembly (7) is fixedly mounted on the side of the adjustment assembly (6); the negative pressure assembly (9) controls the surrounding fixed assemblies (7) to synchronously move closer and farther away through the adjustment assembly (6); a suction assembly (10) is fixedly mounted on the outer surface of the support tube (5); the suction assembly (10) is communicated with the fixed assembly (7); The number of the fixing components (7) is six, and each of the six fixing components (7) is three in a group, divided into two groups on the left and right, and the fixing components (7) are distributed corresponding to the two ends of the three faces of the prism.

2. The fixing device of an optical prism milling machine according to claim 1, characterized in that: The fixing assembly (7) comprises a connecting plate (71), a side tube (72), a clamping column (73) and a second spring (74); the side tube (72) is fixedly connected to the front surface of the connecting plate (71); one end of the clamping column (73) is movably sleeved in the side tube (72); one end of the second spring (74) is fixedly connected in the side tube (72) and is fixedly connected to the clamping column (73); a middle hole is provided inside the clamping column (73); the middle hole is connected to the connecting plate (71) through the side tube (72).

3. The fixing device of an optical prism milling machine according to claim 2, characterized in that: The base (1) is internally rotatably provided with a threaded shaft, which is threadably sleeved with the movable frame (2). The end of the base (1) is provided with a power unit, which drives the threaded shaft to rotate and controls the two sets of movable frames (2) to move synchronously closer and farther away.

4. The fixing fixture of an optical prism milling machine according to claim 3, characterized in that: The rotating assembly (3) comprises a rotating column (31), a connecting plate (32) and a gear (33); a snap ring is fixedly sleeved on the outer surface of the rotating column (31); the rotating column (31) is rotatably sleeved in the movable frame (2) via the snap ring; the gear (33) is fixedly sleeved on the outer surface of the rotating column (31); the connecting plate (32) is fixedly connected to the end of the rotating column (31) and is fixedly connected to the support tube (5).

5. The fixing device of the optical prism milling machine according to claim 4, characterized in that: The control assembly (4) comprises a toothed plate (41), a mounting frame (42) and an electric push rod (43); the mounting frame (42) is fixedly connected to a side surface of the movable frame (2); the electric push rod (43) is fixedly installed in the mounting frame (42) and a movable end is fixedly connected to the toothed plate (41); and the toothed plate (41) is meshingly connected to the gear (33).

6. The fixing device of the optical prism milling machine according to claim 5, characterized in that: An internal cavity (11) is provided inside the support tube (5); a control motor (8) is fixedly provided at one end of the support tube (5); the negative pressure assembly (9) comprises a threaded rod (91), a piston sleeve (92), a fixing ring (93), a limiting tube (94), a limiting rod (95) and a through hole (96); the fixing ring (93) is fixedly sleeved in the internal cavity (11); the threaded rod (91) and the fixing ring (93) are rotatably sleeved; the piston sleeve (92) is threadably sleeved on the outer surface of the threaded rod (91); the limiting tube (94) is fixedly connected to the inner side surface of the fixing ring (93) and is communicated with the through hole (96) provided on the outer side surface of the fixing ring (93); the limiting rod (95) is fixedly connected to the front surface of the piston sleeve (92); and the limiting rod (95) is movably sleeved in the limiting tube (94).

7. The fixing fixture of an optical prism milling machine according to claim 6, characterized in that: The adjusting component (6) comprises a fixed frame (61), a sliding block (62), a spring 1 (63), a fixed tube (64), a push rod (65) and a slide groove (66). The fixed frame (61) is fixedly connected to the outer surface of the support tube (5). There are three adjusting components (6) on the outer surface of the support tube (5). The sliding block (62) is slidably sleeved in the fixed frame (61). One end of the spring 1 (63) is fixedly connected to the inside of the fixed frame (61), and the other end is fixedly connected to the top of the sliding block (62). The fixed tube (64) is fixedly sleeved inside the fixed frame (61), and the lower end of the fixed tube (64) passes through the fixed frame (61) and is sleeved inside the support tube (5) and communicates with the internal cavity (11). The push rod (65) is fixedly connected to the bottom surface of the sliding block (62) and movably sleeved inside the fixed tube (64). The slide groove (66) is opened on the back side of the fixed frame (61).

8. The fixing fixture of an optical prism milling machine according to claim 7, characterized in that: One end of the sliding block (62) is fixedly connected to the connecting plate (71); a connecting hole is provided inside the sliding block (62), and the connecting hole is connected to the connecting plate (71).

9. The fixing fixture of an optical prism milling machine according to claim 8, characterized in that: The suction assembly (10) comprises a vacuum pump (101), a connecting ring (102) and an air pipe (103); the connecting ring (102) is fixedly sleeved on the outer surface of the support tube (5); the vacuum pump (101) is fixedly installed on the outer surface of the support tube (5); the suction end of the vacuum pump (101) is fixedly connected and communicated with the connecting ring (102); one end of the air pipe (103) is fixedly connected and communicated with the connecting ring (102); the other end of the air pipe (103) is fixedly connected and communicated with the sliding block (62); and the air pipe (103) is slidably sleeved in the sliding groove (66).

10. The fixing fixture of an optical prism milling machine according to claim 9, characterized in that: The connecting plate (71) comprises a frame (12), a filter portion (13) and a closing cover (14); the cross section of the filter portion (13) is concave; a filter hole is provided on the front side of the filter portion (13); the filter portion (13) is movably sleeved in the frame (12); the closing cover (14) is fixedly connected to the end of the filter portion (13) and is magnetically attracted to the end of the frame (12); the front side of the frame (12) is fixed to and communicated with the side tube (72); the back side of the frame (12) is fixed to and communicated with the sliding block (62); the concave surface of the filter portion (13) faces the side tube (72); and a baffle is provided at the inner end of the filter portion (13).

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