CN111958839A - Complete set of tool for machining ridge prism - Google Patents
Complete set of tool for machining ridge prism Download PDFInfo
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- CN111958839A CN111958839A CN202010877910.3A CN202010877910A CN111958839A CN 111958839 A CN111958839 A CN 111958839A CN 202010877910 A CN202010877910 A CN 202010877910A CN 111958839 A CN111958839 A CN 111958839A
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- prism
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- positioning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
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Abstract
The invention discloses a complete set of tooling for machining a ridge prism, and relates to the technical field of optical lens production tooling. The method comprises the following steps: a tray; and a square brick rest body; and a prism backrest I; the positioning tool I is used for assisting in fixing a workpiece on the prism leaning body I so as to position the upper inclined side face of the prefabricated roof prism; and a prism backrest II; the positioning tool II is used for assisting in fixing the workpiece on the prism leaning body II so as to position a first ridge surface of the prefabricated ridge prism; and a positioning tool III for assisting in fixing the workpiece on the prism leaning body II so as to position the second ridge surface of the prefabricated ridge prism. The special-shaped roof prism processing tool is specially used for processing a special-shaped roof prism, can accurately position each surface of the prefabricated roof prism, and greatly improves the product precision and the qualification rate; and the tool has simple structure, easy use and low purchasing or self-making cost.
Description
Technical Field
The invention relates to the technical field of optical lens production tools, in particular to a complete set of tool for machining a roof prism.
Background
The prism is a polyhedron made of transparent materials (such as glass, crystal and the like), has the function of splitting light or dispersing light beams, and is widely applied to equipment such as high-precision optical instruments and the like. The prism has extremely high precision requirement on the working surfaces, and the precision requirement on the angle between the working surfaces is also very high, so that the quality of the prism product is directly determined by the two aspects.
For a common ridge prism, the requirement on the angle precision of a ridge angle is high, generally 90 degrees +/-3 degrees, other angles are within 2', the precision requirement is low, the processing technology is simple, and the production efficiency and the qualified rate are high. The special-shaped ridge prism shown in fig. 1 comprises two ridge surfaces with an included angle of 120 degrees, a rectangular bottom surface opposite to the ridge surfaces, two irregular quadrilateral vertical side surfaces which are perpendicular to the bottom surface and are parallel to each other, and two pentagonal oblique side surfaces which are inclined and are parallel to each other, wherein the included angle between the two ridge surfaces and the upper oblique side surfaces is 120 degrees, and the included angle between the upper oblique side surfaces and the bottom surface is 45 degrees; during production, the included angle error of the ridge angle and the included angle error of the two ridge surfaces and the upper inclined side surface is required to be +/-2 ', the included angle error of the upper inclined side surface and the bottom surface is required to be +/-3 ', and the included angle error of the other adjacent surfaces is required to be +/-10 '. The roof prism is irregular in shape, and the precision requirement is obviously higher than that of a common roof prism, so that the processing difficulty is extremely high.
At present, the method for producing the special-shaped roof prism comprises the following steps: firstly, grinding a blank according to the shape of a roof prism to process the shape of a target product; then grinding and polishing each surface in turn; and finally, coating a film on the corresponding surface to obtain a roof prism finished product. In the production method, the front grinding procedure and the back grinding and polishing procedure need repeated labor, and the production efficiency is low; and because the existing tooling fixture can not provide accurate and reliable positioning for processing each surface of the tooling fixture, the product precision is difficult to ensure, and the product qualification rate is very low. Therefore, a set of production process and tooling jig meeting the requirement of the production of the special-shaped roof prism needs to be designed.
Disclosure of Invention
Technical problem to be solved by the invention
Aiming at the problem that the existing tooling fixture can not provide accurate and reliable positioning for processing each surface of the special-shaped roof prism, the invention provides a complete set of tooling for processing the roof prism, which is specially used for processing the special-shaped roof prism, can accurately position each surface of the pre-processed roof prism, greatly improves the product precision and the qualification rate, and has simple and easy structure and low purchasing or self-making cost.
Technical scheme
In order to solve the problems, the technical scheme provided by the invention is as follows:
a complete set of frock for processing roof prism includes: the device comprises a tray, a square brick rest body, a prism rest body I, a positioning tool I, a prism rest body II, a positioning tool II and a positioning tool III; the positioning tool I assists in fixing a workpiece on the prism leaning body I so as to position the upper inclined side face of the prefabricated roof prism; the positioning tool II is used for assisting in fixing a workpiece on the prism leaning body II so as to position a first ridge surface of a prefabricated ridge prism; and the positioning tool III is used for assisting in fixing a workpiece on the prism leaning body II so as to position a second ridge surface of the prefabricated ridge prism.
Processing during dysmorphism roof prism, earlier with the tray as two vertical sides that are parallel to each other that the location carrier processed out roof prism, again with the square brick lean on the body as the bottom surface that the location carrier processed out roof prism, then lean on body I as the last oblique side of location carrier processing out roof prism with the prism, then regard as the location carrier processing out with this last oblique side parallel down oblique side with the tray again, use the prism to lean on body II to process out two roof faces of roof prism in proper order as the location carrier at last, use this complete set of frock can increase substantially the machining precision and the qualification rate of roof prism.
Further, wherein: the cross section of the prism leaning body I is an isosceles right triangle; the cross section of the prism lean body II is a right triangle, and the included angles of the adjacent side surfaces of the prism lean body II are respectively 90 degrees, 60 degrees and 30 degrees.
Further, location frock I includes: a base I; the support body I is arranged on the upper side of the base I, and a right-angle V-shaped groove I matched with the triangular prism leaning body I is formed in the upper side of the support body I; the check block I is arranged above the right-angle V-shaped groove I, and a vertical leaning surface I which is vertical to the length direction of the right-angle V-shaped groove I is arranged on one side of the check block I; the positioning block I is arranged on one side of the right-angle V-shaped groove I, and one end, facing the right-angle V-shaped groove I, of the positioning block I is provided with a positioning surface I; locating surface I is 45 inclined planes, and keeps away from with right angle V type groove I the inner wall of I one side of locating piece is parallel.
Further, location frock II includes: a base II; the support body II is fixed on the upper side of the base II, and a right-angle V-shaped groove II matched with the triangular prism leaning body II is formed in the upper side of the support body II; the block II is arranged above the right-angle V-shaped groove II, a vertical leaning surface II is arranged on one side of the block II, and the included angle between the vertical leaning surface II and the right-angle V-shaped groove II in the length direction is equal to the included angle between the ridge edge of the ridge prism and the upper inclined side surface; and a positioning block II fixed on the stop block II, wherein a vertical positioning surface II is arranged on one side of the positioning block II, the positioning surface II is perpendicular to the vertical leaning surface II, and the intersecting line of the positioning surface II and the vertical leaning surface II vertically falls on the inner side of the upper opening of the right-angle V-shaped groove II.
Furthermore, the positioning tool III and the positioning tool II are in mirror images of each other in the width direction of the right-angle V-shaped groove II.
Further, the surface aperture of the working face of the prism leaning body I, the positioning tool I, the prism leaning body II, the positioning tool II and the positioning tool III is within 1/10 lambda, and the smooth finish is within 40-20.
Further, wherein: the precision of the included angle between the prism leaning body I and the adjacent working surfaces in the positioning tool I is within +/-3'; and the precision of the included angle between the adjacent working surfaces in the prism leaning body II, the positioning tool II and the positioning tool III is within +/-1 ″.
Furthermore, the parallelism of the upper surface and the lower surface of the tray is less than or equal to 2'.
Furthermore, the perpendicularity of the four side surfaces of the square brick leaning body and the upper and lower end surfaces is less than or equal to 1'.
Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) the complete set of tool for machining the roof prism is specially used for machining the special-shaped roof prism, can accurately position each surface of the prefabricated roof prism, greatly improves the precision and the qualification rate of products, and has the advantages of simple and easy structure, low purchase or self-control cost;
(2) the complete set of tool for machining the roof prism is specially provided with a positioning tool I, can assist in fixing a workpiece to be machined on the prism leaning body I and position the upper inclined side face of the roof prism to be machined, so that the error of a bottom angle alpha between the upper inclined side face and the bottom face of the machined workpiece can reach +/-3 ″, and higher consistency can be ensured;
(3) the complete set of tool for machining the roof prism is also specially provided with a positioning tool II and a positioning tool III, can assist in fixing a workpiece to be machined on the prism leaning body II, and respectively positions two roof ridge surfaces of the pre-machined roof prism, so that the error of a roof angle of the machined workpiece and the included angle between the two roof ridge surfaces and the upper inclined side surface is within +/-2 ″, and higher consistency can be ensured.
Drawings
FIG. 1 is a schematic structural diagram of a roof prism in the present invention;
FIG. 2 is a schematic view of a roof prism of the present invention during processing;
FIG. 3 is a schematic view showing a state in which the rhombic prism is fixed on the tray when the vertical side is processed;
FIG. 4 is a schematic view showing a state in which an oblique square prism is fixed to a square tile holder during processing of a bottom surface;
FIG. 5 is a schematic structural diagram of a tooling assembly I for machining an upper inclined side surface;
FIG. 6 is a schematic view of a use state of a tooling assembly I;
FIG. 7 is a schematic view showing the arrangement state of a prism supporter I when an upper inclined side is machined;
FIG. 8 is a schematic structural view of a tooling assembly II for machining a first ridge surface;
FIG. 9 is a schematic view of a use state of the tooling assembly II;
FIG. 10 is a schematic view showing the arrangement state of the triangular prism lean body II when the first roof ridge surface is machined;
FIG. 11 is a schematic structural view of a tooling assembly III for machining a second ridge surface;
FIG. 12 is a schematic view of a tool assembly III in use;
FIG. 13 is a schematic view showing the arrangement state of the triangular prism lean III when the second ridge surface is machined;
in the drawings: 1. a roof prism; 11. a vertical side; 12. a bottom surface; 13. an upper inclined side surface; 14. a downward sloping side surface; 15. a first roof surface; 16. a second roof surface;
2. a tray; 3. a square brick rest body;
4. positioning a tool I; 41. a base I; 42. a support body I; 43. a stop block I; 431. a vertical leaning surface I; 432. a stand column I; 44. a positioning block I; 441. a positioning surface I;
5. the prism rest body I;
6. positioning a tool II; 61. a base II; 62. a support body II; 63. a stop block II; 631. a vertical leaning surface II; 632. a column II; 64. a positioning block II; 641. a positioning surface II;
7. a prism rest II; 8. and (5) positioning a tool III.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
Example 1
A roof prism processing technique, which is specially used for processing a roof prism 1 as shown in fig. 1, wherein the roof prism 1 comprises: the roof comprises two roof surfaces with an included angle of 120 degrees, a rectangular bottom surface opposite to the roof surfaces, two trapezoid vertical side surfaces which are perpendicular to the bottom surface and are parallel to each other, and a pentagonal upper inclined side surface and a pentagonal lower inclined surface which are inclined relative to the bottom surface and are parallel to each other; the included angles between the two ridge surfaces and the upper inclined side surface are both 120 degrees, the included angle between the upper inclined side surface and the bottom surface is 45 degrees, the preparation steps are shown in figure 2, and the specific operation steps are as follows:
step one, preparing an oblique square prism as shown in fig. 2, the oblique square prism comprising: two parallelogram vertical sides 11, square upper 13 and lower 14 sloping sides, and rectangular bottom 12 and top; the rhombic prism specification is a multiplied by b multiplied by c which is 50mm multiplied by 25mm, wherein: a is the width of the rhombic prism, b is the height of the rhombic prism, and c is the thickness of the rhombic prism; reserving the machining allowance to be 0.4 mm; base angle α is 45 ° ± 5 ";
step two, processing a vertical side surface:
grinding and polishing the first vertical side: wiping two vertical side surfaces 11 of an oblique square prism, wherein one vertical side surface 11 faces downwards and is adhered to a circular glass tray 2 with the diameter of phi 300mm and the parallelism of the upper surface and the lower surface of less than or equal to 2' by glue, and as shown in figure 3, 6-8 oblique square prisms are fixed on each tray; the whole tray is arranged in a grinding device for grinding, the grinding depth is 0.2mm, and the grinding size error and the parallelism error of each grinding surface of the rhombic prisms on the tray 2 are controlled within +/-0.005 mm; thirdly, the whole disc is transferred to a polishing machine for polishing, the aperture of the surface is controlled within 1/8 lambda, no flaw is detected on the polished surface by using a 6-time magnifier, and the disc is placed and cleaned after the detection is qualified;
(II) grinding and polishing the second vertical side surface: firstly, wiping the polished vertical side surface 11 clean, coating optical cement on the tray 2, and coating protective cement on the periphery of the rhombic prism, wherein the arrangement mode of the workpiece on the tray is also shown in the figure 3; secondly, after the protective adhesive is dried, the whole disc is placed in grinding equipment to grind the other vertical side surface 11 until the width a of the rhombic prism is 50 +/-0.01 mm, the parallelism error of the grinding surface of each rhombic prism on the tray 2 is controlled within +/-0.001 mm, and the surface type of the grinding surface is controlled within-0.001 mm; thirdly, the whole disc is transferred into a polishing machine for polishing, the polishing quality of the second vertical side surface 11 is controlled to be consistent with that of the first vertical side surface 11, and the parallelism of the two vertical side surfaces 11 is controlled to be within 1'; fourthly, discharging and cleaning the qualified product after detection;
step three, processing the bottom surface:
positioning the bottom surface: firstly, taking a square brick rest body 3 with the dimension specification of 110mm multiplied by 50mm and the perpendicularity of four side surfaces and the upper end surface and the lower end surface of the square brick rest body 3 being less than or equal to 1', cleaning and polishing one vertical side surface 11 of an oblique square prism and one side surface of the square brick rest body 3 together, and ensuring that the bottom surface 12 of the oblique square prism is flush with the lower end surface of the square brick rest body 3, as shown in figure 4, polishing and fixing one oblique square prism on each side surface of the square brick rest body 3; placing the square brick leaning body 3 with the periphery smooth glue and the rhombic prisms shown in the figure 4 in a 100W incandescent lamp for baking for 4 hours, and coating protective glue on the periphery of the rhombic prisms after the square brick leaning body is cooled to the normal temperature;
(II) grinding and polishing the bottom surface: firstly, after the protective glue is dried, the whole body is placed in grinding equipment to grind the bottom surfaces 12 of the rhombic prisms, the grinding depth is 0.20mm, and the parallelism error of the grinding surfaces of the rhombic prisms on the periphery of the square brick leaning body 3 is controlled within +/-0.001 mm; secondly, the whole body is transferred to a polishing machine to polish the bottom surface 12 of the rhombic prism, the surface aperture is controlled within 1/10 lambda, and the surface finish degree is 40-20, so that the bottom surface 12 of the rhombic prism is machined; thirdly, after the detection is qualified, the plate is placed and cleaned; it should be noted that in the process of grinding and polishing the bottom surface 12 of the rhombic prism, the lower end surface of the square brick leaning body 3 is also ground and polished at the same time;
step four, processing the upper inclined side face:
positioning the upper inclined side surface: firstly, taking a triangular prism leaning body I5 with an isosceles right triangle cross section, wiping the bottom surface 12 of an oblique square prism clean, and then coating photoresist on the large surface of the triangular prism leaning body I5, and ensuring that the upper oblique side surface 13 of the oblique square prism is parallel to a right-angle surface of the triangular prism leaning body I5; secondly, gluing a prism leaning body I5 on the tray 2, ensuring that the upper inclined side 13 of the rhombic prism faces upwards horizontally as shown in the figure 7, uniformly distributing 6-8 prisms in each tray, and coating protective glue on the periphery of the rhombic prism;
(II) grinding and polishing the upper inclined side surface: firstly, after the protective glue is dried, the whole tray is placed in grinding equipment to grind the upper inclined side surface 13 of the rhombic prism, the grinding depth is 0.2mm, and the grinding size error and the parallelism error of the grinding surface of each rhombic prism on the tray 2 are controlled within +/-0.005 mm; secondly, the whole disc is transferred to a polishing machine to polish the upper oblique side surface 13 of the oblique square prism, the surface aperture is controlled within 1/10 lambda, and the finish degree is controlled to be 40-20, so that the upper oblique side surface 13 of the oblique square prism is machined; thirdly, after the detection is qualified, the plate is placed and cleaned;
step five, processing a lower inclined side surface:
(I) upper disc: wiping clean the upper oblique side 13 of the processed oblique square prism, then coating optical cement on the tray 2, uniformly distributing 6-8 optical cement in each tray, and then coating protective cement on the periphery of the oblique square prism;
secondly, after the protective glue is dried, the whole disc is placed in grinding equipment to grind the lower oblique side surface 14 of the rhombic prism until the thickness c is 25 +/-0.01 mm, and the parallelism error of the grinding surface of each rhombic prism on the tray 2 is controlled within +/-0.001 mm;
thirdly, the whole disc is transferred into a polishing machine to polish the lower oblique side surface 14 of the oblique square prism, the surface aperture is controlled within 1/10 lambda, the smoothness is controlled within 40-20, and the parallelism between the lower oblique side surface 14 and the upper oblique side surface 13 is controlled within 1', so that the lower oblique side surface 14 of the oblique square prism is processed; thirdly, after the detection is qualified, the plate is placed and cleaned;
step six, machining the ridge surface:
positioning a prefabricated ridge surface: taking a triangular prism lean II 7 with the included angles of the adjacent side surfaces of 90 degrees, 60 degrees and 30 degrees respectively, wiping one vertical side surface 11 of the rhombic prism clean, and then applying photoresist to the large surface of the triangular prism lean II 7, and ensuring that the preprocessed roof ridge surface is parallel to the right-angle surface of the triangular prism lean II 7 opposite to the included angle of 30 degrees; secondly, gluing triangular prism lean II 7 on the tray 2, ensuring that the preprocessed ridge surface is horizontally upward as shown in figure 10, uniformly distributing 6-8 triangular prism lean bodies on each tray, and coating protective glue on the periphery of the rhombic prism;
grinding and polishing the roof surface: firstly, after the protective adhesive is dried, the whole disc is placed in grinding equipment to grind and remove the intersected edge of the top surface of the rhombic prism and one vertical side surface 11 to form a first roof surface 15, the grinding depth is 17.5mm, the parallelism error of the grinding surface of each rhombic prism on the tray 2 is controlled within +/-0.001 mm, and the surface profile is controlled within-0.001 mm; secondly, the whole disc is transferred to a polishing machine to polish the first ridge surface 15, the surface aperture is controlled within 1/10 lambda, and the finish degree is controlled within 40-20, so that the first ridge surface 15 is machined; thirdly, after the detection is qualified, the plate is placed and cleaned;
and (III) processing the second ridge surface 16 by the same method, namely finishing the forming processing of the ridge prism 1.
In the roof prism processing technology in this embodiment, the produced roof prism 1 finished product satisfies: the included angle error between the two ridge surfaces and the upper oblique side surface is +/-2 ', the included angle error between the upper oblique side surface and the bottom surface is +/-3 ', and the included angle error between the other adjacent surfaces is +/-10 '; the qualification rate of each 500 finished products reaches more than 95 percent, the rejection rate is greatly reduced, the cost of raw materials is reduced by more than 20 percent, and the production efficiency is greatly improved.
Example 2
The utility model provides a complete sets of frock suitable for 1 processing technology of roof prism in embodiment 1, complete sets of frock includes frock subassembly I, as shown in FIG. 5, frock subassembly I includes that the prism leans on body I5 and location frock I4.
Specifically, the triangular prism leaning body I5 is a straight triangular prism with an isosceles right triangle cross section; the positioning tool I4 comprises a base I41, a support body I42, a stop block I43 and a positioning block I44; the support body I42 is arranged on the upper side of the base I41, a right-angle V-shaped groove I matched with the triangular prism leaning body I5 is formed in the upper side of the support body I42, and the inner wall surface of the right-angle V-shaped groove I is provided with two 45-degree inclined planes which are perpendicular to each other; the baffle I43 is arranged above the right-angle V-shaped groove I, two ends of the baffle I43 are supported by two upright posts I432 positioned on two sides of the support body I42, and one side of the baffle I43 is provided with a vertical leaning surface I431 vertical to the length direction of the right-angle V-shaped groove I; locating piece I44 sets up on support body I42 on one side of right angle V type groove I, and locating piece I44 has locating surface I441 towards the one end of right angle V type groove I, locating surface I441 is 45 inclined planes, and keeps away from with right angle V type groove I the inner wall surface of locating piece I44 one side is parallel.
The three side surfaces of the prism leaning body I5, the inner wall surface of a right-angle V-shaped groove I in the positioning tool I4, the vertical leaning surface I431 and the positioning surface I441 are working surfaces, the surface aperture of the working surfaces is within 1/10 lambda, and the degree of finish is 40-20; the precision of the included angle between the adjacent working faces of the prism leaning body I5 and the positioning tool I4 is within +/-3 ″.
The tool assembly I is used for positioning the upper inclined side face to be machined in advance, and comprises the following specific operation steps:
firstly, respectively wiping the working surfaces of a triangular prism leaning body I5 and a positioning tool I4, then placing the triangular prism leaning body I5 in a right-angle V-shaped groove I on the positioning tool I4, and observing that parallel interference fringes are generated on a contact surface;
secondly, cleaning the surface of the rhombic prism in the embodiment 1, then, carrying out optical glue on the bottom surface 12 of the rhombic prism to the upward side surface of the triangular prism leaning body I5, ensuring that the upper oblique side surface 13 and one vertical side surface 11 of the rhombic prism are respectively clung to the positioning surface I441 and the vertical leaning surface I431, and observing that parallel interference fringes are generated on contact surfaces;
thirdly, the prism lean body I5 with the optical cement having the rhombic prism is optically cemented on the tray 2 according to the method in the fourth step of the embodiment 1, so that the upper oblique side surface to be preprocessed can be accurately positioned.
On the basis, the upper inclined side surface 13 of the rhombic prism is ground and polished, so that the error of a bottom angle alpha between the processed upper inclined side surface and the bottom surface can reach within +/-3', and the consistency is high.
In this embodiment, the complete set of tooling further comprises a tooling component II and a tooling component III.
As shown in fig. 8, the tool assembly ii includes a prism rest ii 7 and a positioning tool ii 6. Specifically, the triangular prism lean body II 7 is a straight triangular prism with a right-angled triangle cross section, and the included angles of the adjacent side surfaces of the triangular prism lean body II are respectively 90 degrees, 60 degrees and 30 degrees; the positioning tool II 6 comprises a base II 61, a support body II 62, a stop block II 63 and a positioning block II 64, the support body II 62 is fixed on the upper side of the base II 61, a right-angle V-shaped groove II matched with the prism lean body II 7 is formed in the upper side of the support body II 62, and the inner walls of two sides of the right-angle V-shaped groove II are respectively an inclined plane of 30 degrees and an inclined plane of 60 degrees; the stop block II 63 is arranged above the right-angle V-shaped groove II, two ends of the stop block II 63 are supported by two stand columns II 632 positioned on two sides of the support body II 62, a vertical leaning surface II 631 is arranged on one side of the stop block II 63, and an included angle between the vertical leaning surface II 631 and the right-angle V-shaped groove II in the length direction is equal to an included angle between a ridge edge of the ridge prism 1 and an upper inclined side surface; the positioning block II 64 is fixed on the stop block II 63, a vertical positioning surface II 641 is arranged on one side of the positioning block II 64, the positioning surface II 641 is perpendicular to the vertical leaning surface II 631, and the intersecting line of the vertical leaning surface II 631 vertically falls on the inner side of the upper opening of the right-angle V-shaped groove II.
As shown in fig. 11, the tool assembly iii comprises a prism leaning body ii 7 and a positioning tool iii 8, and the positioning tool iii 8 and the positioning tool ii 6 are in the structure of the right-angle V-shaped groove in the width direction, which are mirror images.
Three side surfaces of the prism leaning body II 7, the surface of the inner wall of the right-angle V-shaped groove II in the positioning tool II 6, the vertical leaning surface II 631 and the positioning surface II 641, and the surface of the positioning tool III 8 corresponding to the surface in the positioning tool II 6 are all working surfaces, the surface aperture of the working surfaces is within 1/10 lambda, and the finish degree is within 40-20; the precision of included angles between adjacent working surfaces in the prism leaning body II 7, the positioning tool II 6 and the positioning tool III 8 is within +/-1 ″.
The tool assembly II and the tool assembly III are respectively used for positioning two preprocessed ridge surfaces, and the specific operation steps are as follows:
firstly, respectively wiping the working surfaces of the triangular prism leaning body II 7 and the positioning tool II 6, then placing the triangular prism leaning body II 7 in a right-angle V-shaped groove II on the positioning tool II 6, and observing that parallel interference fringes are generated on a contact surface;
secondly, cleaning the surface of the rhombic prism in the embodiment 1, then, carrying out photoresist on one vertical side surface 11 of the rhombic prism to the side surface, facing upwards, of the triangular prism leaning body II 7, ensuring that the upper inclined side surface 13 of the rhombic prism is tightly attached to the vertical leaning surface II 631, ensuring that the edge where the base angle alpha of the rhombic prism is located is propped against the positioning surface II 641, and observing that parallel interference fringes are generated on the contact surface;
thirdly, the prism lean body II 7 with the optical cement having the rhombic prism is optically cemented on the tray 2 according to the method in the sixth step of the embodiment 1, and the first pre-processed roof surface 15 can be accurately positioned.
When the second roof surface 16 is positioned, the same operation steps as described above may be performed by the tool assembly iii.
On the basis, the rhombic prisms are ground and polished, the processed ridge angle and the included angle error between the two ridge surfaces and the upper oblique side surface are within +/-2', and the consistency is high.
In this embodiment, the set of tooling further comprises the tray 2 and the square brick rest body 3 in embodiment 1.
In addition, the complete set of tools are all made of colorless and transparent materials such as glass and crystal, so that interference fringes can be observed conveniently in the operation process.
The complete set of frock in this embodiment can pinpoint each surface of the roof prism 1 of preprocessing for the roof prism 1 of output satisfies: the included angle error of the ridge angle and the included angle error of the two ridge surfaces and the upper inclined side surface is +/-2 ', the included angle error of the upper inclined side surface and the bottom surface is +/-3 ', and the included angle error of the other adjacent surfaces is +/-10 '; and the tool is simple in structure, easy to use and low in purchasing or self-making cost.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (9)
1. The utility model provides a complete set of frock for processing roof prism which characterized in that includes:
a tray (2); and
a square brick rest body (3); and
the prism rest body I (5); and
the positioning tool I (4) is used for assisting in fixing a workpiece on the prism leaning body I (5) so as to position the upper inclined side face of the prefabricated roof prism (1); and
a prism rest II (7); and
a positioning tool II (6) for assisting in fixing the workpiece on the prism lean body II (7) so as to position a first roof surface (15) of the prefabricated roof prism (1); and
and the positioning tool III (8) is used for assisting in fixing the workpiece on the prism leaning body II (7) so as to position the second ridge surface (16) of the prefabricated ridge prism (1).
2. The tooling set for machining a roof prism as recited in claim 1, wherein:
the cross section of the prism leaning body I (5) is an isosceles right triangle;
the cross section of the prism lean body II (7) is a right-angled triangle, and the included angles of the adjacent side faces of the prism lean body II are respectively 90 degrees, 60 degrees and 30 degrees.
3. A set of tooling for machining a roof prism as claimed in claim 2, wherein the positioning tooling i (4) comprises:
a base I (41); and
the support body I (42) is arranged on the upper side of the base I (41), and a right-angle V-shaped groove I matched with the triangular prism leaning body I (5) is formed in the upper side of the support body I (42); and
the check block I (43) is arranged above the right-angle V-shaped groove I, and a vertical leaning surface I (431) perpendicular to the length direction of the right-angle V-shaped groove I is arranged on one side of the check block I (43); and
the positioning block I (44) is arranged on one side of the right-angle V-shaped groove I, and one end, facing the right-angle V-shaped groove I, of the positioning block I (44) is provided with a positioning surface I (441); locating surface I (441) is 45 inclined planes, and keeps away from with right angle V type groove I the inner wall of locating piece I (44) one side is parallel.
4. The set of tooling for machining a roof prism as claimed in claim 3, wherein the positioning tooling II (6) comprises:
a base II (61); and
a support body II (62) fixed on the upper side of the base II (61), wherein a right-angle V-shaped groove II matched with the triangular prism leaning body II (7) is formed in the upper side of the support body II (62); and
the stop block II (63) is arranged above the right-angle V-shaped groove II, a vertical leaning surface II (631) is arranged on one side of the stop block II (63), and the included angle between the vertical leaning surface II (631) and the right-angle V-shaped groove II in the length direction is equal to the included angle between the ridge of the ridge prism (1) and the upper inclined side surface; and
fix locating piece II (64) on dog II (63), locating piece II (64) one side has vertical locating surface II (641), II (641) the perpendicular to of locating surface II (631) and with the vertical line of intersect that leans on face II (631) is vertical to be fallen on II suitable mouthful inboards in right angle V type groove.
5. The tool set for machining the roof prism as claimed in claim 4, wherein: and the positioning tool III (8) and the positioning tool II (6) are in mirror images of each other in the structure in the width direction of the right-angle V-shaped groove II.
6. The tool set for machining the roof prism as claimed in claim 5, wherein: the prism leans on body I (5), location frock I (4), the prism leans on the surface light ring of the working face in body II (7), location frock II (6) and location frock III (8) within 1/10 lambda, and smooth finish is within 40 ~ 20.
7. The tooling set for machining a roof prism as recited in claim 5, wherein:
the precision of the included angle between the adjacent working surfaces in the prism leaning body I (5) and the positioning tool I (4) is within +/-3';
the precision of the included angle between the adjacent working surfaces in the prism leaning body II (7), the positioning tool II (6) and the positioning tool III (8) is within +/-1 ″.
8. The tool set for machining the roof prism as claimed in any one of claims 1 to 7, wherein: the parallelism of the upper surface and the lower surface of the tray (2) is less than or equal to 2'.
9. The tool set for machining the roof prism as claimed in any one of claims 1 to 7, wherein: the verticality between the four side surfaces of the square brick rest body (3) and the upper and lower end surfaces is less than or equal to 1'.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010877910.3A CN111958839A (en) | 2020-08-27 | 2020-08-27 | Complete set of tool for machining ridge prism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010877910.3A CN111958839A (en) | 2020-08-27 | 2020-08-27 | Complete set of tool for machining ridge prism |
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|---|---|
| CN111958839A true CN111958839A (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010877910.3A Pending CN111958839A (en) | 2020-08-27 | 2020-08-27 | Complete set of tool for machining ridge prism |
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| CN (1) | CN111958839A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114619297A (en) * | 2022-04-21 | 2022-06-14 | 马鞍山市江南光学有限公司 | Processing technology of right-angle prism side sag 10 ″ |
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