CN110666987B - Production process of special-shaped lens - Google Patents
Production process of special-shaped lens Download PDFInfo
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- CN110666987B CN110666987B CN201910867374.6A CN201910867374A CN110666987B CN 110666987 B CN110666987 B CN 110666987B CN 201910867374 A CN201910867374 A CN 201910867374A CN 110666987 B CN110666987 B CN 110666987B
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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
- B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
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Abstract
The invention provides a production process of a special-shaped lens, which relates to the technical field of precision machining, and comprises the following steps: s10: taking a cross-shaped billet, clamping and fixing two sides of the cross-shaped billet in a machining center by using a first clamp, and aligning one end of the cross-shaped billet with a machining center cutter; s20: processing one end of the cross-shaped billet into a cylinder, rotating at 90 degrees while aiming at the first clamp for three times, and processing the other end and the three ends of the cross-shaped billet into cylinders; s30: cutting two cylinders without round holes along the middle part of the cross-shaped billet, wherein the included angle between the normal line of the inclined plane formed by cutting the cross-shaped billet and the central axis of the round hole is 45 degrees; s40: and carrying out hole site processing and surface processing on the semi-finished product to form the special-shaped lens. The invention can ensure that the central axis of the light inlet end and the central axis of the light outlet end simultaneously meet the accurate vertical relation and are on the same plane, thereby solving the production problem.
Description
Technical Field
The invention relates to the technical field of precision manufacturing, in particular to a production process of a special-shaped lens.
Background
The microscope is a high-precision instrument for observing microstructure, and is widely used in various fields such as medical treatment, biology, metal, surface treatment and the like.
The microscope usually includes structures such as eyepiece, objective, plummer, reflector, etc. the eyepiece and the objective of current microscope are perpendicular to each other sets up, so still need to use a kind of special-shaped camera lens to change the light angle in the microscope.
The special-shaped lens is generally of an L-shaped structure consisting of a light outlet end, a light reflecting end and a light inlet end, light entering from an objective lens is reflected into an eyepiece through the light reflecting end, so that the light outlet end and the light inlet end need to have an accurate vertical relation, and the central axis of the light outlet end and the central axis of the light inlet end need to be on the same plane. The existing production process is difficult to ensure that the light-in end and the light-out end simultaneously meet the relationship, and improvement of the production process is urgently needed to solve the problems.
Disclosure of Invention
The invention provides a production process of a special-shaped lens, which can enable a central axis of a light inlet end and a central axis of a light outlet end to simultaneously meet an accurate vertical relation and be on the same plane, thereby solving the production problem.
The above object of the present invention is achieved by the following technical solutions:
a production process of a special-shaped lens comprises the following steps:
s10: taking a cross-shaped billet, clamping and fixing two sides of the cross-shaped billet in a machining center by using a first clamp, and aligning one end of the cross-shaped billet with a machining center cutter;
s20: processing one end of the cross-shaped billet into a cylinder, rotating for 90 degrees while aiming at the first clamp for three times, and processing the other end and the three ends of the cross-shaped billet into cylinders; in the process of processing the cylinders, round holes are coaxially processed in two adjacent cylinders;
s30: cutting two cylinders without round holes along the middle part of the cross-shaped billet, wherein the included angle between the normal line of the inclined plane formed by cutting the cross-shaped billet and the central axis of the round hole is 45 degrees, so as to form a semi-finished product;
s40: and carrying out hole site processing and surface processing treatment on the semi-finished product to form the special-shaped lens.
Through adopting above-mentioned technical scheme, under the prerequisite of not changing the cutter, can guarantee that four end cylindrical axis of cross billet are on the coplanar, rotate 90 processing at every turn moreover, can guarantee adjacent cylindrical axis mutually perpendicular, follow-up processing respectively into light inlet end and light-emitting end of two cylinders with the round hole wherein to subsequent axis of light inlet end and the axis of light-emitting end have accurate vertical relation promptly, still on the coplanar.
Further, the first clamp comprises a first bottom plate, a butting block and a first air cylinder; and a cutter feeding hole is also formed in the first bottom plate.
Through adopting above-mentioned technical scheme, the cross billet can be by the clamping between butt piece and cylinder, and the feed hole is convenient for machining center's cutter to pass the bottom plate and process the one end of cross billet towards the bottom plate.
Further, step S20 includes:
s21, clamping the cross-shaped billet block on a first clamp, processing one end of the cross-shaped billet block into a cylinder, rotating the first clamp by 90 degrees, and processing the second end of the cross-shaped billet block into a cylinder;
s22: rotating the first clamp in the same direction of 90 degrees, processing the third end of the cross-shaped billet into a cylindrical shape, then continuously processing the cylindrical shape of the third end into a circular truncated cone-shaped light inlet end, and processing a coaxial circular hole, namely a light inlet hole, in the light inlet end;
s23: and rotating the first clamp in the same direction of 90 degrees to process the fourth end of the cross-shaped billet into a cylindrical shape, then continuously processing the fourth end, reducing the diameter of the fourth end to form a light-emitting end, and processing a coaxial circular hole, namely a light-emitting hole, in the light-emitting end, wherein the light-emitting hole is communicated with the light-inlet hole.
By adopting the technical scheme, the light outlet hole and the light inlet hole are also processed in the four-end processing process of the cross-shaped billet, so that the central axis of the light outlet hole coincides with the central axis of the fourth end, and the central axis of the light inlet hole coincides with the central axis of the third end.
Furthermore, after four ends of the cross-shaped blank block are polished into cylinders, a rectangular block is formed in the middle of the cross-shaped blank block, and two sides of the rectangular block are square.
By adopting the technical scheme, the intersection point of the central axes of the light outlet hole and the light inlet hole can be arranged on the diagonal surface of the rectangular block, and a structural foundation is provided for the subsequent steps.
Further, step S30 includes:
s31: fixing the cross-shaped billet block on a second fixture, fixing the cross-shaped billet block on the second fixture according to a positive cross, and rightly fixing the second fixture on a machining center;
s32: rotating the second clamp at 45 degrees to enable the two ends without the round holes to face upwards and clamping the two ends facing upwards;
s33: and horizontally cutting the middle part of the cross-shaped blank block to separate the upward two ends and the downward two ends of the cross-shaped blank block, and reserving a part to be subjected to circular hole forming, namely a semi-finished product.
By adopting the technical scheme, included angles between the normal line of the cutting surface on the semi-finished product and the central axes of the light inlet hole and the light outlet hole are both 45 degrees, and the cutting surface is used for reflecting light rays entering from the light inlet end to the light outlet end perpendicularly according to the reflector.
Further, the second clamp comprises a second bottom plate and a third side plate, the third side plate is arranged at one end of the top surface of the second bottom plate, the second bottom plate is provided with a positioning cylinder and a positioning table, a U-shaped groove is formed in the top of the positioning table, and a round rod is arranged in the U-shaped groove in a sliding mode; the plane of the central axis of the U-shaped groove and the plane of the central axis of the positioning cylinder are parallel to the third side plate.
By adopting the technical scheme, the light inlet hole is clamped on the positioning cylinder; the light-emitting hole faces the positioning table and is parallel and level to the U-shaped groove, the round rod transversely penetrates through the U-shaped groove and the light-emitting hole, and the second clamp is installed at the rear of the machining center to clamp the first end and the second end of the cross-shaped billet, so that the cross-shaped billet can be fixed.
Furthermore, the light outlet and the light inlet are communicated with the semi-finished product cutting surface.
By adopting the technical scheme, the cutting surface of the semi-finished product is used for installing the reflector, so that the light inlet hole can be communicated with the light outlet hole through the reflector.
Further, step S40 includes:
s41: drilling at least two fixing hole sites on the cutting surface of the semi-finished product, fixing the semi-finished product on a third clamp by using the fixing hole sites, and enabling two cylindrical ends to face upwards;
s42: and performing cambered surface treatment and hole site treatment on the surface of the ridge in the middle of the semi-finished product.
By adopting the technical scheme, the semi-finished product can be conveniently fixed on the third clamp by the fixing hole positions, and then the surface of the semi-finished product is punched and subjected to surface treatment to form a final product.
Furthermore, the third clamp comprises a third bottom plate, a fourth side plate, a first clamping block, a second clamping block and a second cylinder; the fourth side plate is arranged at one end of the top surface of the third bottom plate, the first clamping block is also arranged at the top surface of the third bottom plate, the second air cylinder is arranged at the other end of the third bottom plate, and the output end of the second air cylinder faces the first clamping block; the second clamping block is arranged at the output end of the second cylinder, and a space is reserved between the second clamping block and the first clamping block.
By adopting the technical scheme, the fixing hole position of the semi-finished product is inserted on the cylindrical clamping pin, and then the semi-finished product is clamped between the first clamping block and the second clamping block, so that the semi-finished product can be fixed.
In conclusion, the beneficial effects of the invention are as follows:
1. the processed semi-finished product and the finished product have light inlet ends and light outlet ends, and the central axes of the semi-finished product and the finished product are on the same plane and are mutually vertical;
2. the processing positions of the four cylindrical ends of the cross-shaped billet block have no requirement, so that the clamping requirement of the cross-shaped billet block can be reduced;
3. after four ends of the cross-shaped blank block are processed into a cylinder, the middle part of the cross-shaped blank block is square, and two sides of the cross-shaped blank block are square, so that the intersection point of the central axis of the light inlet hole and the central axis of the light outlet hole is flush with the diagonal plane of the rectangular block.
Drawings
FIG. 1 is a schematic view of the present invention as a semi-finished product 6a formed from a cross-shaped block 5 a;
FIG. 2 is a schematic view of the present invention, illustrating a semi-finished product 6b being processed into a profile lens;
FIG. 3 is a schematic view of a first clamp;
FIG. 4 is a schematic structural view of a second clamp;
FIG. 5 is a schematic view of the cross-shaped compact 5b clamped in the second jig;
FIG. 6 is a schematic structural view of a third clamp;
FIG. 7 is a cross-sectional view of the anamorphic lens of FIG. 2 taken at A-A;
FIG. 8 is a cross-sectional view of the anamorphic lens of FIG. 2 taken at B-B;
FIG. 9 is a schematic of the production flow of the present invention.
In the figure, 1, a first clamp; 11. a first base plate; 111. a cutter feeding hole; 12. a first side plate; 121. a first cylinder; 13. a second side plate; 131. a butting block; 2. a second clamp; 21. a second base plate; 211. positioning the disc; 2111. positioning the cylinder; 212. a positioning table; 2121. a U-shaped groove; 2122. a round bar; 22. a third side plate; 3. a third clamp; 31. a third base plate; 32. a fourth side plate; 33. a first bit block; 34. a second bit block; 35. a second cylinder; 36. a cylindrical clamping pin; 4 a; 4 b; 4c, fixing the disc; 5 a; 5b, cross-shaped billets; 51. a first end; 52. a second end; 53. a light inlet end; 531. a light inlet hole; 532 a first ring groove; 54. a light emitting end; 541. a light exit hole; 541. a second ring groove; 55. a rectangular block; 551. a diagonal plane; 6 a; 6b, semi-finished products; 61. a bevel; 62. a concave platform; 63. a straight hole; 64. blind holes; 65 a; 65b, assembling hole sites; 66. fixing hole positions; 67. a long hole; 8. a special-shaped lens; 81. a light reflecting end; 811. a third ring groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
the invention provides a production process of a special-shaped lens, which needs three clamps:
first clamp 1: referring to fig. 3, the portable electronic device includes a first bottom plate 11, a first side plate 12, and a second side plate 13, wherein the first side plate 12 and the second side plate 13 are respectively fixed to two ends of the top surface of the first bottom plate 11 by bolts; a first cylinder 121 is fixedly arranged on one side of the first side plate 12 facing the second side plate 13, and the output end of the first cylinder 121 faces the second side plate 13; a square abutting block 131 is fixedly arranged in the middle of one side, facing the first side plate 12, of the second side plate 13 through bolts, and a fixed disc 4a used for being clamped on a machining center is fixedly arranged on one side, facing away from the first side plate 12, of the second side plate 13; the first bottom plate 11 is also provided with a round-corner rectangular feed hole 111;
the second clamp 2: referring to fig. 4, the portable electronic device includes a second bottom plate 21 and a third side plate 22, the third side plate 22 is vertically and fixedly disposed at one end of the top surface of the second bottom plate 21, a positioning disc 211 and a positioning table 212 are further fixedly bolted on the top surface of the second bottom plate 21, a U-shaped groove 2121 is disposed at the top of the positioning table 212, and a central axis of the U-shaped groove 2121 is parallel to both the second bottom plate 21 and the third side plate 22; a round rod 2122 with the diameter matched with the diameter of the bottom of the U-shaped groove 2121 is slidably arranged in the U-shaped groove 2121; the positioning disc 211 is provided with four threaded holes, the four threaded holes are all arranged on the second bottom plate 21 through bolt threads, the height of the positioning disc 211 can be adjusted through adjusting bolts, and the top surface of the positioning disc 211 is fixedly provided with a positioning cylinder 2111; the plane of the central axis of the U-shaped groove 2121 and the central axis of the positioning cylinder 2111 is parallel to the third side plate 22; the side of the third side plate 22 far away from the positioning cylinder 2111 and the positioning table 212 is provided with a fixed disc 4b for clamping on the machining center;
third clamp 3: referring to fig. 6, the device includes a third bottom plate 31, a fourth side plate 32, a first clamping block 33, a second clamping block 34, a cylindrical clamping leg 36, and a second cylinder 35 (a double-piston cylinder), wherein the fourth side plate 32 is vertically fixed at one end of the top surface of the third bottom plate 31, and the third bottom plate 31 is provided with a plurality of threaded assembling holes; the first clamping block 33 is fixedly arranged on the top surface of the bottom plate by bolts; the length directions of the first clamping block 33 and the second clamping block 34 are both parallel to the third side plate 22, and a space is reserved between the first clamping block and the third side plate; the second cylinder 35 is fixedly arranged at one end of the third bottom plate 31 far away from the fourth side plate 32, the output end of the second cylinder 35 faces the fourth side plate 32, and the second clamping block 34 is fixedly arranged at the output end of the second cylinder 35; the cylindrical clamping pin 36 is fixedly arranged on the top surface of the third bottom plate 31 by bolts and is positioned between the first clamping block 33 and the second clamping block 34; the back side of the fourth side plate 32 is fixedly provided with a fixed disc 4c which is clamped on the processing center.
With reference to fig. 9, the production process of the special-shaped lens 8 includes S10-S40:
s10: with reference to fig. 3, a cross-shaped billet 5a is taken, the cross-shaped staggered part of the cross-shaped billet is clamped by a first air cylinder 121, the air cylinder piston rod is arranged between the abutting blocks 131, and one end of the cross-shaped billet 5a faces to the cutter feeding hole 111; the first jig 1 is fitted to the machining center with either end of the cross-shaped block 5a aligned with the machining center tool.
S20: with reference to fig. 1, one end of a cross-shaped billet 5a is processed into a cylindrical shape, the first clamp 1 is rotated for three times at 90 degrees, and the other three ends of the cross-shaped billet 5a are also processed into a cylindrical shape on the premise of not changing a cutter; and in the process of machining the cylinders, taking the axes of two adjacent cylinders as a reference, machining round holes coaxially on the corresponding cylinders, wherein the more specific step of S20 is as follows:
s21, with reference to fig. 1 and 3, the first end 51 of the cross-shaped block 5a is formed into a cylindrical shape, the first jig 1 is rotated at an arbitrary clockwise direction by 90 ° (the cross-shaped block 5a shown in fig. 1 in this embodiment is rotated clockwise), the second end 52 of the cross-shaped block 5a is also formed into a cylindrical shape, and the cut surfaces of the cross-shaped block 5a at the first end 51 and the second end 52 are flush with the side surfaces of the abutment block 131, respectively.
S22: continuing to rotate the first jig 1 by another 90 ° in the same rotational direction as in S21, the third end of the cross-shaped block 5a is machined into a cylindrical shape until the cutting surface of the cross-shaped block 5a at the third end is flush with the side surface of the abutment block 131; and then, continuously processing the cylindrical shape at the third end into a circular truncated cone-shaped light inlet end 53, processing a coaxial circular hole, namely a light inlet hole 531 in the light inlet end 53, milling two annular grooves on the inner peripheral wall of the light inlet end 53, wherein the depth of the light inlet hole 531 exceeds the geometric center of the cross-shaped billet 5 a.
S23: continuing to rotate the first jig 1 by another 90 ° in the same rotational direction as in S21, the fourth end of the cross-shaped block 5a is machined into a cylindrical shape until the cut surface of the cross-shaped block 5a at the fourth end is flush with the side surface of the abutment block 131; continuing to process the fourth end, reducing the diameter of the fourth end to form a light-emitting end 54, processing a coaxial circular hole, namely a light-emitting hole 541, in the light-emitting end 54, and milling two annular grooves on the outer peripheral wall of the light-emitting end 54; the light exit 541 may have a length that is longer than the light entrance 531.
Four ends of the cross-shaped block 5a are polished into a cylindrical shape to obtain a cross-shaped block 5b with a round hole, and a rectangular block 55 is formed in the unprocessed middle portion of the cross-shaped block 5b with a round hole. Specifically, two surfaces of the rectangular block 55 clamped by the piston rod of the first cylinder 121 and the abutting block 131 are square; the intersection of the central axes of the light exit 541 and light entry 531 apertures is disposed on diagonal 551 of block 55.
After the step S20 is finished, since the tool is not replaced in the whole process of S20, the central axes of the four cylindrical ends of the cross-shaped compact 5b with the circular hole can be located on the same plane, and every time the cross-shaped compact is rotated 90 degrees for processing, the central axes of two adjacent cylindrical ends can be perpendicular to each other, so that the central axis of the light-emitting hole 541 and the central axis of the light-entering hole 531 are perpendicular to each other.
S30: referring to fig. 1, two cylinders without a circular hole are cut along the middle part of a cross-shaped briquette 5b with a circular hole, and the included angle between the normal line of an inclined plane 61 formed by cutting the cross-shaped briquette and the central axis of the circular hole is 45 degrees; the method comprises the following specific steps:
s31: referring to fig. 5 and 4, the cross-shaped compact 5b with the round hole formed therein is removed from the first jig 1, the light inlet hole 531 is inserted into the positioning cylinder 2111 of the second jig 2 (the diameter of the positioning cylinder 2111 is set according to the inner diameter of the light inlet hole 531 calculated in advance), the positioning disc 211 is raised so that the light outlet hole 541 is aligned with the U-shaped groove 2121, the round rod 2122 is inserted into the U-shaped groove 2121 and the light outlet hole 541, and the positioning disc 211 is fixed, and the second jig 2 is assembled at the machining center;
s32: in the machining center, the second clamp 2 is rotated by 45 degrees along the central axis of the fixed disc 4b, so that the bisector of the angle between the central axes of the first end 51 and the second end 52 is upward, and the upward two ends are clamped by a clamp in the machining center;
s33: referring to fig. 1, the upper portion of the cross-shaped block 5b having the circular hole is milled away by a milling cutter along a diagonal plane 551 of the central rectangular block 55 of the cross-shaped block 5b having the circular hole, and the lower portion, i.e., the semi-finished product 6a, is retained. At this time, the light exit 541 and the light entrance 531 are both connected to the inclined surface 61 of the semi-finished product 6 a; and the intersection point of the central axis of the light exit 541 and the central axis of the light entrance 531 is disposed on the inclined surface 61.
S40: with reference to fig. 2, hole site processing and surface processing are performed on the semi-finished product 6a to form a special-shaped lens 8; firstly, continuously processing the semi-finished product 6b by using the second clamp 2 and the processing center; with the intersection of the light outlet 541 and the light inlet 531 as the center, milling a concave platform 62 on the inclined surface 61 of the semi-finished product 6b, drilling a straight hole 63 on one side of the concave platform 62 along the normal direction of the inclined surface 61, and drilling two blind holes 64 on the other side of the concave platform 62 along the normal direction of the inclined surface 61; two blind holes 64 and straight holes 63 on the concave table 62 are distributed according to three vertexes of a horizontal isosceles triangle.
S41: drilling a fixing hole position 66 and an assembling hole position 65a at the upper and lower positions of the inclined surface 61 relative to the concave table 62, wherein the positions and the hole diameters of the upper and lower fixing hole positions 66 are processed according to the distance and the outer diameter between the cylindrical clamping feet 36; so far the semi-finished product 6a forms a semi-finished product 6b, the second clamp 2 is taken down and the semi-finished product 6b is unloaded from the second clamp 2; respectively inserting the fixing hole sites 66 on the semi-finished product 6b on the cylindrical clamping pins 36 on the third fixture 3, and enabling the first clamping block 33 to abut against one side of the semi-finished product 6b (the first clamping block 33 and the cylindrical clamping pins 36 are installed in front of the bottom plate, and the position relation between the first clamping block 33 and the cylindrical clamping pins 36 is arranged according to the position of the pre-calculated fixing hole sites 66 and the distance between the fixing hole sites 66 and the side surface of the finished product); with reference to fig. 6, the third fixture 3 is assembled in the machining center, and the second cylinder 35 is activated to make the second clamping block 34 abut against the other side of the semi-finished product 6 ab; the third bottom plate 31 is leveled so that the bisector of the central axis of the light inlet end 53 and the central axis of the light outlet end 54 faces upward.
S42: with reference to fig. 2 and 8, the surface of the middle prism piece of the semi-finished product 6b is processed into an arc surface by CNC according to a 3D surface, and the middle prism piece forms a reflective end 81; on the side of the semi-finished product 6b, which is far away from the inclined surface 61, taking the plane where the central axis of the light outlet 541 and the central axis of the light inlet 531 are located as a symmetrical plane, and on the position symmetrical to the hole position of the straight hole 63, firstly, clockwise rotating the third clamp 3 by 25 degrees, and drilling a long hole 67; then, the third clamp 3 is rotated counterclockwise by 50 degrees, another long hole 67 is drilled, and the two long holes 67 are respectively communicated with the two blind holes 64; finally, a ring groove is coaxially milled on the circular surface of the light reflecting end close to the light emitting end; and a mounting hole 65b is drilled at the connection of the light inlet end 53 and the light reflecting end 81 and at the side away from the light outlet end 54.
Example two:
with reference to fig. 2, the present embodiment provides a special-shaped lens manufactured by the manufacturing process in the first embodiment, which includes a light reflecting end 81, wherein two ends of the light reflecting end 81 are respectively integrally provided with a light inlet end 53 and a light outlet end 54, and central axes of the light inlet end 53 and the light outlet end 54 are perpendicular to each other; an inclined plane 61 is arranged on one side of the light reflecting end 81, which is far away from the light inlet end 53 and the light outlet end 54, the normal line of the inclined plane 61 and the central axis of the light inlet end 53 and the light outlet end 54 are on the same plane, and the included angle between the normal line of the inclined plane 61 and the central axis of the light inlet end 53 is 45 degrees;
and the intersection point of the central axis of the light inlet end 53 and the central axis of the light outlet end 54 is located on the inclined surface 61; the light inlet end 53 and the light outlet end 54 are respectively provided with a light inlet hole 531 and a light outlet hole 541 coaxially, and the light inlet hole 531 and the light outlet hole 541 penetrate through the inclined plane 61.
The light inlet holes 531 and the light outlet holes 541 are staggered on the inclined surface 61 to form elliptical holes, the inclined surface 61 is provided with a concave table 62, the elliptical holes are arranged in the concave table 62, the concave table 62 is provided with three hole sites, one hole site is positioned beside a long shaft on one side of the elliptical hole, the other two hole sites are positioned beside the long shaft on the other side of the elliptical hole, and the three hole sites are arranged in a transverse isosceles triangle shape;
wherein the hole site located at the top angle of the isosceles triangle is a straight hole 63 which penetrates through the light reflecting end, and the central axis thereof is parallel to the normal of the inclined plane 61; referring to fig. 8, two hole sites at the bottom angle of the isosceles triangle are both blind holes 64, the central axes of the two hole sites are also parallel to the normal of the inclined plane 61, and the tail ends of the two blind holes 64 are both communicated with a long hole 67; the central axis of the long hole 67 and the central axis of the blind hole 64 are positioned on the same plane, and the long hole 67 is arranged obliquely to the blind hole 64; the intersection of the two elongated holes 67 is located on the light-reflecting end surface and is flush with the end of the straight hole 63 remote from the recessed land 62 (during normal use of the mirror).
The light inlet end 53 is in a circular truncated cone shape, and the top surface with smaller area is far away from the light reflecting end 81; two first ring grooves 532 are arranged on the inner peripheral wall of the light inlet end 53; an assembling hole site 65 is arranged at the junction of the light inlet end 53 and the light reflecting end and on one side far away from the light outlet end 54, and assembling hole sites 65 are also arranged above and below the concave platform 62 on the inclined surface 61; fixing hole positions 66 are arranged at the positions, which are close to the upper part and the lower part of the inclined surface 61 relative to the concave table 62; two second ring grooves 542 are formed in the outer peripheral wall of the light-emitting end 54, and a third ring groove 811 shown in fig. 2 is concentrically formed on the circular surface of the light-reflecting end 81 close to the light-emitting end 54.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited in sequence, so: all equivalent changes made according to the structure, shape and principle of the invention should be covered within the protection scope of the invention.
Claims (9)
1. The production process of the special-shaped lens is characterized by comprising the following steps:
s10: taking a cross-shaped billet (5a), clamping and fixing two sides of the cross-shaped billet (5a) in a machining center by using a first clamp (1), and aligning one end of the cross-shaped billet (5a) with a machining center cutter;
s20: machining one end of the cross-shaped billet (5a) into a cylindrical shape, rotating at 90 degrees while aiming at the first clamp (1) for three times, and machining the other three ends of the cross-shaped billet (5a) into a cylindrical shape; in the process of processing the cylinders, round holes are coaxially processed in two adjacent cylinders;
s30: cutting two cylinders without the round holes along the middle part of the cross-shaped billet (5b) with the round holes, wherein the included angle between the normal line of the inclined plane formed after cutting the cross-shaped billet (5b) with the round holes and the central axis of the round holes is 45 degrees, so as to form a semi-finished product (6 a);
s40: and performing hole position processing and surface processing on the semi-finished product (6a) to form the special-shaped lens (8).
2. The production process of the special-shaped lens according to claim 1, characterized in that: the first clamp (1) comprises a first bottom plate (11), a first side plate (12), a second side plate (13), an abutting block (131) and a first air cylinder (121); the first side plate (12) and the second side plate (13) are respectively and fixedly arranged at two ends of the top surface of the first bottom plate (11) in a vertical mode; the first cylinder (121) is fixed on one side of the first side plate (12) facing the second side plate (13); the abutting block (131) is fixed in the middle of one side, facing the first side plate (12), of the second side plate (13); the first bottom plate (11) is also provided with a cutter feeding hole (111).
3. The production process of the special-shaped lens according to claim 1, characterized in that: step S20 includes:
s21, clamping the cross-shaped billet (5a) on a first clamp (1), machining one end of the cross-shaped billet (5a) into a cylindrical shape, rotating the first clamp (1) by 90 degrees, and machining the second end (52) of the cross-shaped billet (5a) into a cylindrical shape;
s22: rotating the first clamp (1) in the same direction at 90 degrees, processing a third end of the cross-shaped billet (5a) into a cylindrical shape, further processing the cylindrical shape of the third end into a light inlet end (53) in a circular truncated cone shape, and processing a coaxial circular hole, namely a light inlet hole (531), in the light inlet end (53);
s23: and rotating the first clamp (1) in the same direction at 90 degrees to machine the fourth end of the cross-shaped billet (5a) into a cylindrical shape, then continuously machining the fourth end, reducing the diameter of the fourth end to form a light-emitting end, machining a coaxial circular hole in the light-emitting end, namely a light-emitting hole (541), and communicating the light-emitting hole (541) with a light-entering hole (531).
4. A process for producing a profiled lens as claimed in claim 3, wherein: four ends of the cross-shaped blank block (5a) are polished into cylinders, a rectangular block (55) is formed in the middle of the cross-shaped blank block (5b) with round holes, and two sides of the rectangular block (55) are square.
5. The production process of the special-shaped lens according to claim 1, characterized in that: step S30 includes:
s31: fixing a cross-shaped billet block (5b) with a round hole on a second fixture (2), fixing the cross-shaped billet block on the second fixture (2) according to a right cross, and rightly fixing the second fixture (2) on a machining center;
s32: rotating the second clamp (2) at 45 degrees to enable the two ends without the round holes to face upwards and clamping the two ends facing upwards;
s33: horizontally cutting the middle part of a cross-shaped blank (5b) with a round hole to separate the two upward ends and the two downward ends of the cross-shaped blank, and reserving a part with the round hole, namely a semi-finished product (6 a).
6. The production process of the special-shaped lens according to claim 5, characterized in that: the second clamp (2) comprises a second bottom plate (21) and a third side plate (22), the third side plate (22) is arranged at one end of the top surface of the second bottom plate (21), a positioning cylinder (2111) and a positioning table (212) are arranged on the second bottom plate (21), a U-shaped groove (2121) is formed in the top of the positioning table (212), and a round rod (2122) is arranged in the U-shaped groove (2121) in a sliding mode; the plane where the central axis of the U-shaped groove (2121) and the central axis of the positioning cylinder (2111) are located is parallel to the third side plate (22).
7. A process for producing a profiled lens as claimed in claim 3, wherein: the light outlet hole (541) and the light inlet hole (531) are communicated with the cutting surface of the semi-finished product (6 a).
8. The production process of the special-shaped lens according to claim 6, characterized in that: step S40 includes:
s41: at least two fixing hole positions (66) are drilled on the cutting surface of the semi-finished product (6a), the semi-finished product is fixed on a third clamp (3) by utilizing the fixing hole positions (66), and the two cylindrical ends face upwards;
s42: and (3) performing cambered surface treatment and hole site treatment on the surface of the ridge in the middle of the semi-finished product (6 a).
9. The production process of the special-shaped lens according to claim 8, characterized in that: the third clamp (3) comprises a third bottom plate (31), a fourth side plate (32), a first clamping block (33), a second clamping block (34) and a second air cylinder (35); the fourth side plate (32) is arranged at one end of the top surface of the third bottom plate (31), the first clamping block (33) is also arranged at the top surface of the third bottom plate (31), the second air cylinder (35) is arranged at the other end of the third bottom plate (31), and the output end of the second air cylinder (35) faces the first clamping block (33); the second clamping block (34) is arranged at the output end of the second air cylinder (35) and is spaced from the first clamping block (33).
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| CN201910867374.6A CN110666987B (en) | 2019-09-12 | 2019-09-12 | Production process of special-shaped lens |
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| CN201910867374.6A CN110666987B (en) | 2019-09-12 | 2019-09-12 | Production process of special-shaped lens |
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| CN114589318B (en) * | 2022-03-14 | 2023-09-15 | 苏州科技大学 | Processing method of off-axis ellipsoidal reflector |
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