Film coating clamp for cube-corner prism

Abstract

The utility model provides a coating fixture for a cube-corner prism, relates to the technical field of cube-corner prism processing, and solves the problems that the coating shadow is too large and the coating cannot meet the requirement when the existing coating fixture for the cube-corner prism is used for coating. The coating fixture comprises a first coating fixture, a second coating fixture, a third coating fixture and a fourth coating fixture, and the middle parts of the first coating fixture, the second coating fixture, the third coating fixture and the fourth coating fixture are respectively provided with a coating hole for fixing a cube-corner prism and exposing a corresponding surface to be coated. The bottom of the inner circumference of the coating hole is provided with a blocking edge used for fixing the cube-corner prism to prevent the cube-corner prism from falling out of the coating hole, and the top of the inner circumference of the coating hole extends upwards to be provided with a blocking face used for guaranteeing the position and stability of the cube-corner prism. The utility model has the beneficial effects that the coating shadow of the pyramid is reduced; other coated surfaces are prevented from being scratched; and separation from the clamp in the coating process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of corner cube processing, in particular to a coating fixture for corner cube prisms. Background Art

[0002] With the rapid development of the CNC precision machining industry, machining accuracy is increasing. Small-scale processes that were previously difficult to achieve are now easily achievable. Furthermore, the coating requirements for some corner cubes are becoming increasingly stringent, and the available shadow area is shrinking. This makes traditional corner cube coating fixtures inefficient in utilizing the coating space and unable to meet these demanding coating requirements. Furthermore, the large size of some corner cubes creates excessive inertia during the coating process, creating the risk of them flying out of the fixture, resulting in irreparable damage.

[0003] Traditional pyramid coating fixtures use adhesive tape to secure the pyramid to the fixture. To ensure a stable fixation, the adhesive tape must be applied over a larger area, which in turn increases the width of the coating fixture's ribs, resulting in excessively large coating shadows. This can lead to coating failures. Furthermore, adhesive tape around the coating surface can generate outgassing during coating, affecting film thickness, uniformity, and other performance indicators. Utility Model Content

[0004] The utility model aims to solve the problem that, when coating with an existing corner cube prism coating fixture, the coating shadow is too large and the coating cannot meet the requirements.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The coating fixture of the corner cube prism includes a first coating fixture for clamping the first coating surface when coating, a second coating fixture for clamping the second coating surface when coating, a third coating fixture for clamping the third coating surface when coating, and a fourth coating fixture for clamping the fourth coating surface when coating;

[0007] The first, second, third, and fourth coating fixtures are each provided with a coating hole in the middle thereof for fixing the corner cube prism and exposing the corresponding surface to be coated; a retaining edge is provided at the inner bottom of the coating hole for fixing the corner cube prism so that it does not fall out of the coating hole; and a retaining surface is provided at the inner top of the coating hole for ensuring the position and stability of the corner cube prism;

[0008] The second coating fixture is detachably mounted with a first baffle, the third coating fixture is detachably mounted with a second baffle, and the fourth coating fixture is detachably mounted with a third baffle.

[0009] Further improvements are: the coating hole of the first coating fixture is rectangular, the rib of the first coating fixture is a first rib, the width of the first rib is 1mm, the thickness of the first rib is 1mm, the inner side of the first rib is provided with a first chamfer for reducing the coating shadow area, the first chamfer is 0.8×30°, the blocking surface of the first coating fixture is a vertical first blocking surface, and the height of the first blocking surface is 5mm.

[0010] Further improvements are: the coating hole of the second coating fixture is a right-angled trapezoid, the ribs of the second coating fixture include a second rib adjacent to the frosted surface and a third rib adjacent to the other coating surfaces, the width of the second rib is 1mm and the thickness is 1mm, the width of the third rib is 0.35mm and the thickness is 1mm, the inner side of the second rib and the third rib are provided with a second chamfer and a third chamfer for reducing the coating shadow area, the second chamfer and the third chamfer are 0.8×30°, the blocking surface of the second coating fixture includes a vertical blocking surface and a first inclined blocking surface close to the frosted surface, the vertical blocking surface is retreated 1mm, the first baffle is V-shaped when viewed from above and convex when viewed from the front, and is detachably arranged at the tail of the second coating fixture.

[0011] A further improvement is that the structure of the fourth coating fixture is the same as that of the second coating fixture, and the structure of the third baffle is the same as that of the first baffle.

[0012] Further improvements are: the coating hole of the third coating fixture is an isosceles right triangle, the ribs of the third coating fixture include a fourth rib adjacent to the frosted surface and a fifth rib adjacent to the other coating surfaces, the width of the fourth rib is 1mm and the thickness is 1mm, the width of the fifth rib is 0.35mm and the thickness is 1mm, the inner sides of the fourth rib and the fifth rib are provided with a fourth chamfer and a fifth chamfer for reducing the coating shadow area, the fourth chamfer and the fifth chamfer are 0.8×30°, the blocking surface of the third coating fixture includes a second inclined blocking surface close to the coating surface and a third inclined blocking surface close to the frosted surface, the second inclined blocking surface is a chamfer of 14×45°, the second baffle is a straight line shape when viewed from above and a convex line shape when viewed from the main body, and is detachably arranged at the tail of the third coating fixture.

[0013] A further improvement is that the first coating fixture, the second coating fixture, the third coating fixture and the fourth coating fixture are all provided with blocking bars mounted on the coating disc on all four sides.

[0014] A further improvement is that the first coating fixture, the second coating fixture, the third coating fixture and the fourth coating fixture are all rectangular parallelepipeds.

[0015] A further improvement is that the first baffle, the second baffle and the third baffle are all provided with light holes, and the second coating fixture, the third coating fixture and the fourth coating fixture are all provided with M3 threaded holes corresponding to the light holes.

[0016] Further improvements are: the first baffle and the second coating fixture are detachably connected by the cooperation of bolts with the threaded hole and the light hole; the second baffle and the third coating fixture are detachably connected by the cooperation of bolts with the threaded hole and the light hole; the third baffle and the fourth coating fixture are detachably connected by the cooperation of bolts with the threaded hole and the light hole.

[0017] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0018] The coating shadow of the pyramid is reduced by setting the corresponding chamfer on the inner side of the rib;

[0019] The corresponding ribs and surfaces are used to firmly fix the pyramid on the fixture during coating, so that it will not move in the fixture during coating, thus preventing other coating surfaces from being scratched.

[0020] The baffle plate ensures that the pyramid will not detach from the fixture during the coating process;

[0021] The baffle is detachably mounted by bolts, and its position can be adjusted to cope with machining errors and clamping errors of the corner cube prism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 This is a schematic structural diagram of the corner cube prism in the utility model;

[0024] Figure 2 This is the corresponding Figure 1 Schematic diagram of the front structure;

[0025] Figure 3 It is a structural diagram of the first coating fixture in the utility model;

[0026] Figure 4 It is a structural schematic diagram of the second coating fixture in the utility model;

[0027] Figure 5 It is a structural schematic diagram of the third coating fixture in the present utility model;

[0028] Figure 6 It is a structural schematic diagram of the fourth coating fixture in the utility model;

[0029] Figure 7 This is a schematic diagram of the clamping structure of the first coating fixture in the present utility model;

[0030] Figure 8 This utility model Figure 7 A magnified view of part A in FIG;

[0031] Figure 9 This is a schematic diagram of the clamping structure of the second coating fixture and the fourth coating fixture in the present invention;

[0032] Figure 10 This utility model Figure 9 A magnified view of part B in FIG;

[0033] Figure 11 This utility model Figure 9 Enlarged view of part C in ;

[0034] Figure 12 This is a schematic diagram of the clamping structure of the third coating fixture in the present invention;

[0035] Figure 13 This utility model Figure 12 Enlarged view of part D in FIG;

[0036] Figure 14 This utility model Figure 12 Magnified view of part F in .

[0037] Explanation of the accompanying drawings: 1, 2, 4, 5, 6-frosted surface, 3-first coating surface, 7-second coating surface, 8-third coating surface, 9-fourth coating surface, 14-first coating fixture, 16-second coating fixture, 18-third coating fixture, 19-fourth coating fixture, 10-bar, 11-edge, 12-edge, 13-coating hole, 15-first baffle, 17-second baffle, 20-third baffle, 21-first edge, 22-first chamfer, 23-first edge, 24-third edge, 25-third chamfer, 26-first inclined edge, 27-second edge, 28-fourth edge, 29-fourth chamfer, 30-third inclined edge, 31-second inclined edge, 32-fifth chamfer, 33-fifth edge. DETAILED DESCRIPTION

[0038] See Figures 1-14As shown, the technical solution adopted in this specific embodiment is: the corner cube prism includes frosted surfaces 1, 2, 4, 5, and 6 and a first coating surface 3, a second coating surface 7, a third coating surface 8, and a fourth coating surface 9; the coating fixture of the corner cube prism includes a first coating fixture 14 for clamping the first coating surface 3 during coating, a second coating fixture 16 for clamping the second coating surface 7 during coating, a third coating fixture 18 for clamping the third coating surface 8 during coating, and a fourth coating fixture 19 for clamping the fourth coating surface 9 during coating;

[0039] The first coating fixture 14, the second coating fixture 16, the third coating fixture 18, and the fourth coating fixture 19 are each provided with a coating hole 13 in the middle thereof for fixing the corner cube prism and exposing the corresponding surface to be coated. The inner bottom of the coating hole 13 is provided with a retaining edge 11 for fixing the corner cube prism so that it does not fall out of the coating hole 13. The inner top of the coating hole 13 is provided with a retaining surface 12 extending upward to ensure the position and stability of the corner cube prism.

[0040] The second coating fixture 16 is detachably mounted with a first baffle 15 , the third coating fixture 18 is detachably mounted with a second baffle 17 , and the fourth coating fixture 19 is detachably mounted with a third baffle 20 .

[0041] The first coating surface 3 is rectangular, with lower coating requirements, allowing for a larger edge shadow, and adjacent surfaces are all vertically frosted. The coating hole 13 of the first coating fixture 14 is also rectangular. The edge 11 of the first coating fixture 14 is a first edge 21 with a width of 1 mm and a thickness of 1 mm. A first chamfer 22 is provided on the inside of the first edge 21 to reduce the coating shadow area. The first chamfer 22 measures 0.8 by 30 degrees. The stop surface 12 of the first coating fixture 14 is a vertical first stop surface 23 with a height of 5 mm. The 5 mm first stop surface 23 surrounds the coating surface, preventing the corner cube from slipping or tipping during the coating process.

[0042] Among them, the shape of the second coating surface 7 is a right-angled trapezoid, and the coating requirements are high, the shadow of the retaining edge can be small, and the adjacent vertical surfaces are all coating surfaces, which cannot be in contact with the clamp, and the adjacent frosted surfaces are all inclined surfaces; the coating hole 13 of the second coating fixture 16 is a corresponding right-angled trapezoid, and the retaining edge 11 of the second coating fixture 16 includes a second retaining edge 27 adjacent to the frosted surface and a third retaining edge 24 adjacent to the other coating surfaces. The width of the second retaining edge 27 is 1mm and the thickness is 1mm. The width of the third retaining edge 24 is 1mm. The second and third ribs 27 and 24 are provided with a second chamfer 23 and a third chamfer 25 on the inner sides thereof for reducing the shadow area of ​​the coating. The second and third chamfers 23 and 25 are 0.8×30°. The retaining surface 12 of the second coating fixture 16 includes a vertical retaining surface and a first inclined retaining surface 26 abutting the frosted surface. The vertical retaining surface is set back 1mm. The first retaining plate 15 is V-shaped when viewed from above and convex when viewed from the front, and is removably mounted at the rear of the second coating fixture 16. The 1mm setback of the vertical retaining surface prevents the coating surface from contacting the fixture and scratching the coating surface. When installing the prism, the frosted surface should be abutted against the first inclined retaining surface 26 to ensure the prism's position and stability. At the same time, the first retaining plate 15 is used at the rear of the fixture to support the edges 1 and 2 of the prism, preventing the prism from sliding out of the fixture due to inertia or shifting during coating, thereby scratching the coating surface.

[0043] Among them, the shape, size and coating requirements of the fourth coating surface 9 are the same as those of the second coating surface 7, so the structure of the fourth coating fixture 19 is the same as that of the second coating fixture 16, and the third baffle 20 is the same as that of the first baffle 15.

[0044] Among them, the shape of the third coating surface 8 is an isosceles right triangle, the coating requirements are high, the shadow of the retaining edge can be small, the adjacent vertical surfaces are all coated surfaces, and the adjacent frosted surfaces are inclined surfaces; the coating hole 13 of the third coating fixture 18 is a corresponding isosceles right triangle, and the retaining edge 11 of the third coating fixture 18 includes a fourth retaining edge 28 adjacent to the frosted surface and a fifth retaining edge 33 adjacent to the other coating surfaces. The width of the fourth retaining edge 28 is 1 mm and the thickness is 1 mm. The width of the fifth retaining edge 33 is 0.35 mm and the thickness is 1 mm. The inner sides of the fourth rib 28 and the fifth rib 33 are provided with a fourth chamfer 29 and a fifth chamfer 32 for reducing the shadow area of ​​the coating. The fourth chamfer 29 and the fifth chamfer 32 are 0.8×30°. The blocking surface 12 of the third coating fixture 18 includes a second inclined blocking surface 31 close to the coating surface and a third inclined blocking surface 30 close to the frosted surface. The second inclined blocking surface 31 is chamfered 14×45°. The second baffle 17 is in the shape of a straight line when viewed from above and a convex line when viewed from the front, and is detachably arranged at the tail of the third coating fixture 18. Among them, in order to prevent the coated surface from contacting with the fixture and scratching the coated surface, the second inclined stop surface 31 close to the coated surface is chamfered at 14×45°, and the frosted surface is placed in close contact with the third inclined stop surface 30 when the prism is placed. During coating, the two coated surfaces are facing the center of rotation to prevent the coated surfaces from moving toward the stop surface; in order to prevent the prism from sliding out of the fixture due to the inertia of rotation during coating, a second baffle 17 is added to the tail of the fixture to support the C edge of the prism and prevent the prism from sliding outward.

[0045] The first coating fixture 14, the second coating fixture 16, the third coating fixture 18, and the fourth coating fixture 19 are all provided with blocking bars 10 mounted on the coating disc.

[0046] The first coating fixture 14 , the second coating fixture 16 , the third coating fixture 18 , and the fourth coating fixture 19 are all rectangular parallelepipeds.

[0047] The first baffle 15 , the second baffle 17 and the third baffle 20 are all provided with light holes, and the second coating fixture 16 , the third coating fixture 18 and the fourth coating fixture 19 are all provided with M3 threaded holes.

[0048] Among them, the first baffle 15 and the second coating fixture 16 are detachably connected by the cooperation of bolts, threaded holes and light holes; the second baffle 17 and the third coating fixture 18 are detachably connected by the cooperation of bolts, threaded holes and light holes; the third baffle 20 and the fourth coating fixture 19 are detachably connected by the cooperation of bolts, threaded holes and light holes.

[0049] The working principle of the present invention is as follows: during coating, the corresponding surface of the prism is placed and fixed toward the coating hole of the corresponding fixture. If a baffle is needed, a corresponding baffle is installed to strengthen the fixation. The baffle is detachably installed by bolts, and the position can be adjusted to cope with the processing error and clamping error of the corner cube prism. The coating shadow of the corner cube is reduced by setting the corresponding chamfer on the inner side of the rib. The corner cube is firmly fixed on the fixture during coating by the corresponding rib and the baffle surface, so that it will not move in the fixture during coating, preventing other coating surfaces from being scratched. The setting of the baffle ensures that the corner cube will not detach from the fixture during the coating process.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements shall fall within the scope of the present invention as claimed. The scope of protection claimed in the present invention shall be defined by the appended claims and their equivalents. Any details not described in the present invention are well known to those skilled in the art.

Claims

1. A coating fixture for a corner cube prism, characterized in that: It includes a first coating fixture, a second coating fixture, a third coating fixture, and a fourth coating fixture; The first coating fixture, the second coating fixture, the third coating fixture, and the fourth coating fixture are all provided with coating holes in the middle thereof for fixing the corner cube prism and exposing the corresponding surface to be coated, the inner bottom of the coating hole is provided with a retaining edge for fixing the corner cube prism so that it does not fall out of the coating hole, and the inner top of the coating hole is extended upwardly to provide a retaining surface for ensuring the position and stability of the corner cube prism; The second coating fixture is detachably mounted with a first baffle, the third coating fixture is detachably mounted with a second baffle, and the fourth coating fixture is detachably mounted with a third baffle.

2. The coating fixture for corner cube prisms according to claim 1, characterized in that: The coating hole of the first coating fixture is rectangular, the guard edge of the first coating fixture is the first guard edge, the width of the first guard edge is 1mm, and the thickness of the first guard edge is 1mm. The inner side of the first guard edge is provided with a first chamfer for reducing the coating shadow area, and the first chamfer is 0.8×30°. The blocking surface of the first coating fixture is a vertical first blocking surface, and the height of the first blocking surface is 5mm.

3. The coating fixture for corner cube prism according to claim 1, characterized in that: The coating hole of the second coating fixture is a right-angle trapezoid. The ribs of the second coating fixture include a second rib adjacent to the frosted surface and a third rib adjacent to other coating surfaces. The width of the second rib is 1 mm and the thickness is 1 mm. The width of the third rib is 0.35 mm and the thickness is 1 mm. The inner sides of the second rib and the third rib are provided with a second chamfer and a third chamfer for reducing the coating shadow area. The second chamfer and the third chamfer are 0.8×30°. The blocking surface of the second coating fixture includes a vertical blocking surface and a first inclined blocking surface close to the frosted surface. The vertical blocking surface is retreated 1 mm. The first baffle is V-shaped when viewed from above and convex when viewed from the front, and is detachably arranged at the tail of the second coating fixture.

4. The coating fixture for corner cube prisms according to claim 3, characterized in that: The structure of the fourth coating fixture is the same as that of the second coating fixture, and the structure of the third baffle is the same as that of the first baffle.

5. The coating fixture for corner cube prisms according to claim 1, characterized in that: The coating hole of the third coating fixture is an isosceles right triangle. The ribs of the third coating fixture include a fourth rib adjacent to the frosted surface and a fifth rib adjacent to other coating surfaces. The width of the fourth rib is 1 mm and the thickness is 1 mm. The width of the fifth rib is 0.35 mm and the thickness is 1 mm. The inner sides of the fourth and fifth ribs are provided with a fourth chamfer and a fifth chamfer for reducing the coating shadow area. The fourth chamfer and the fifth chamfer are 0.8×30°. The blocking surface of the third coating fixture includes a second inclined blocking surface close to the coating surface and a third inclined blocking surface close to the frosted surface. The second inclined blocking surface is chamfered 14×45°. The second baffle is in the shape of a straight line when viewed from above and in the shape of a convex line when viewed from the front. It is detachably arranged at the tail of the third coating fixture.

6. The coating fixture for corner cube prisms according to claim 1, characterized in that: The first coating fixture, the second coating fixture, the third coating fixture and the fourth coating fixture are all provided with blocking bars clamped on the coating disc on all four sides.

7. The coating fixture for corner cube prisms according to claim 1, characterized in that: The first coating fixture, the second coating fixture, the third coating fixture and the fourth coating fixture are all cuboids.

8. The coating fixture for corner cube prisms according to claim 1, characterized in that: The first baffle, the second baffle and the third baffle are all provided with light holes, and the second coating fixture, the third coating fixture and the fourth coating fixture are all provided with M3 threaded holes corresponding to the light holes.

9. The coating fixture for corner cube prisms according to claim 8, characterized in that: The first baffle plate and the second coating fixture are detachably connected by the cooperation of bolts, threaded holes and light holes; the second baffle plate and the third coating fixture are detachably connected by the cooperation of bolts, threaded holes and light holes; the third baffle plate and the fourth coating fixture are detachably connected by the cooperation of bolts, threaded holes and light holes.

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