Rotational positioning assembly equipment for optical lens

Abstract

The present invention discloses a rotational positioning assembly device for an optical lens, comprising a bottom plate, a fixing rod and a top plate, wherein the bottom plate is vertically fixed with a fixing rod, the fixing rod is fixed with a top plate parallel to the bottom plate, a cylinder is fixed with a cylinder at the lower end surface of the top plate, a fixing plate is fixed with a fixing plate at the output end of the cylinder, an assembly mechanism is mounted on the fixing plate, the assembly mechanism comprises a mounting plate, a vertical rod, a second spring, a rotating shaft, a pressing plate, a gear, a convex tooth rod, a connecting rod and a cross rod, and the mounting plate is arranged directly below the fixing plate. The rotational positioning assembly device for an optical lens adopts an elastic clamping and limiting mechanism, which can adapt to the fixing of lens barrels of different sizes, thereby improving the adaptability of the device, and cooperates with the assembly mechanism to perform a rotational pressing action during the assembly process of the lens barrel and the lens, so that the pressing plate applies uniform pressure to the lens, ensuring that the lens is evenly stressed, thereby avoiding damage to the lens due to uneven stress.

Description

Technical Field

[0001] The invention relates to the technical field of optical lens processing, in particular to a rotation positioning assembly device for an optical lens. Background Art

[0002] Optical lens is an indispensable component in machine vision system, which directly affects the quality of imaging, the realization and effect of algorithm. It is mainly composed of lens, spacer, pressure ring and lens barrel. In the actual production process, in order to ensure the close fit between lens and lens barrel, interference connection structure is generally adopted to realize the assembly connection between lens and lens barrel, so it is necessary to assemble lens and lens barrel through special assembly equipment.

[0003] In actual use, the existing assembly equipment mainly assembles the lens and the lens barrel by directly applying pressure. In the actual operation process, the lens is easily affected by uneven force, which affects the assembly quality or causes lens damage. Therefore, in view of the above problems, a rotation positioning assembly equipment for an optical lens is designed to better meet the actual use needs. Summary of the invention

[0004] The object of the present invention is to provide a rotational positioning assembly device for an optical lens to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rotation positioning assembly device for an optical lens, comprising a bottom plate, a fixing rod and a top plate, wherein the bottom plate is vertically fixed with a fixing rod, the fixing rod is fixed with a top plate parallel to the bottom plate, a cylinder is fixed with a cylinder at the lower end surface of the top plate, a fixing plate is fixed with a fixing plate at the output end of the cylinder, an assembly mechanism is mounted on the fixing plate, the assembly mechanism comprises a mounting plate, a vertical rod, a second spring, a rotating shaft, a pressure plate, a gear, a convex gear rod, a connecting rod and a cross rod, the mounting plate is arranged directly below the fixing plate, the upper surface of the fixing plate is symmetrically fixed with vertical rods, the vertical rods are slidably connected to the fixing plate, and the mounting plate is also provided with a plurality of connecting rods. One end of a second spring is fixed, and the other end of the second spring is fixed to the fixing plate. A bearing is connected to the mounting plate with a rotating shaft, a pressure plate is fixed to the lower end of the rotating shaft, and a gear is fixed to the upper end of the rotating shaft, and the gear is meshed with a convex toothed rod for transmission. The convex toothed rod and the mounting plate are slidingly connected, and one end of a connecting rod is rotatably connected to the convex toothed rod, and the other end of the connecting rod is rotatably connected to a cross bar, and the cross bar is fixed to the rear side of the fixing plate. When the mounting plate moves relative to the fixing plate, the convex toothed rod is forced to slide through the transmission action of the connecting rod, and the transmission action between the convex toothed rod and the gear provides a force for the rotation of the rotating shaft and the pressure plate.

[0006] Preferably, a display is fixed on the bottom plate, and a detection mechanism is also fixed on the bottom plate, and a positioning mechanism is installed on the detection mechanism. Through the function of the display, the detection data can be displayed conveniently, thereby facilitating observation by staff.

[0007] Preferably, the detection mechanism includes a base, an air flow channel, a pressure sensor, a seal, an elastic airbag, an air inlet check valve and an air outlet check valve. The base is fixed on the bottom plate, and the central axis of the base coincides with the central axis of the pressure plate, and a lens barrel is placed in the base. By limiting the positions of the central axis of the base and the central axis of the pressure plate, the normal operation of the device can be guaranteed, thereby ensuring the normal assembly of the lens barrel and the lens.

[0008] Preferably, an air flow channel is opened in the base, and a pressure sensor is installed in the air flow channel, and the pressure sensor is electrically connected to the display. Through the action of the air flow channel, the air flow can be guided, thereby providing a basic guarantee for the normal detection, and in conjunction with the action of the pressure sensor, air pressure detection can be achieved, thereby ensuring the normal use of the device.

[0009] Preferably, a sealing member is fixed in the base, and the sealing member contacts the lower end surface of the lens barrel to achieve a sealing effect, and a lens is placed on the lens barrel. The sealing effect of the lens barrel can be achieved through the sealing effect between the sealing member and the lens barrel, thereby providing basic guarantee for the sealing of the assembly of the lens barrel and the lens.

[0010] Preferably, the elastic airbag is fixed on the base plate symmetrically on the left and right, and an air inlet check valve and an air outlet check valve are installed on the elastic airbag, and the elastic airbag is interconnected with the air flow channel through the air outlet check valve. Through the action of the air inlet check valve and the air outlet check valve, the gas in the elastic airbag can be guaranteed to flow in one direction, thereby providing a basic guarantee for the detection.

[0011] Preferably, the positioning mechanism includes a clamping plate, a sliding rod, a first spring and a fixing frame, the clamping plate is arranged at equal angles in the base, and the upper end of the clamping plate is a sloped structure, and the clamping plate contacts the lens barrel to achieve a limiting effect. Through the action of the clamping plate, a basic guarantee can be provided for the clamping and limiting of the lens barrel, thereby ensuring the normal assembly of the lens barrel and the lens, and through the sloped structure on the upper end of the clamping plate, lens barrels of different sizes can be limited, thereby improving the adaptability of the device.

[0012] Preferably, a sliding rod is fixed on the splint, and the sliding rod and the base are slidably connected. When the splint moves, the sliding guiding effect between the sliding rod and the base can ensure the stability of the movement of the splint.

[0013] Preferably, one end of a first spring is also fixed on the sliding rod, and the other end of the first spring is fixed on a fixing frame, and the fixing frame is fixed at an equal angle to the outside of the base. Through the elastic action of the first spring, it can provide a force for the splint to ensure the stability of the splint clamping the lens barrel, and can also provide a basic force for the automatic resetting of the splint when the splint is not subject to external force, thereby ensuring the normal use of the device.

[0014] Preferably, a pressure rod is fixed symmetrically on the fixed plate, and a pressure block is fixed at the lower end of the pressure rod, and the pressure block is located directly above the elastic airbag. Through the action of the pressure rod and the pressure block, pressure can be provided to the elastic airbag, thereby providing a basic guarantee for the normal progress of the detection.

[0015] Compared with the prior art, the invention has the following beneficial effects: the rotation positioning assembly device of the optical lens adopts an elastic clamping and limiting mechanism, which can adapt to the fixing of lens barrels of different sizes, thereby improving the adaptability of the device; in conjunction with the assembly mechanism, a rotation pressing action can be performed during the assembly process of the lens barrel and the lens, so that the pressure plate applies pressure evenly to the lens, ensuring that the lens is evenly stressed, thereby avoiding damage to the lens due to uneven stress; in conjunction with the linkage detection mechanism, an airtightness detection can be performed after the lens barrel and the lens are assembled, effectively ensuring the assembly quality of the lens barrel and the lens, and the specific contents are as follows:

[0016] 1. The rotation positioning assembly device of the optical lens can adjust the position of the clamping plate through the sliding rod during use of the device so as to adapt to the positioning of lens barrels of different sizes. The stability of the lens barrel fixation can be ensured by cooperating with the elastic action of the first spring. During the detection process, the fixing plate and the mounting plate can be driven downward by the cylinder. When the pressing plate contacts the lens, pressure can be applied to the lens to achieve the assembly effect. In the process of crimping assembly, the rotating shaft and the pressing plate can be rotated through the action of the connecting rod, the convex tooth rod and the gear, so that the pressing plate can rotate synchronously when applying pressure to the lens, ensuring that the force on the lens is uniform, thereby avoiding damage to the lens;

[0017] 2. The rotational positioning assembly equipment of the optical lens, when the fixed plate moves downward to drive the pressure rod and the pressure block to move downward, when the pressure block contacts the elastic airbag and applies pressure, the elastic airbag can be forced to shrink, and with the action of the air inlet check valve and the air outlet check valve, the gas in the elastic airbag can enter the air flow channel, and with the action of the pressure sensor, the sealing of the assembly of the lens barrel and the lens can be detected, effectively ensuring the assembly quality of the lens and the lens barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the device of the present invention;

[0019] Figure 2It is a schematic diagram of the overall rear-view stereoscopic structure of the device of the present invention;

[0020] Figure 3 It is a schematic diagram of the exploded three-dimensional structure composed of the detection mechanism, lens barrel and lens of the present invention;

[0021] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the detection mechanism of the present invention;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the positioning mechanism of the present invention;

[0023] Figure 6 It is a schematic diagram of the front three-dimensional structure of the assembly mechanism of the present invention;

[0024] Figure 7 It is a bottom-up three-dimensional structural schematic diagram of the assembly mechanism of the present invention.

[0025] In the figure: 1, bottom plate; 101, display; 2, fixing rod; 3, top plate; 4, detection mechanism; 401, base; 402, air flow channel; 403, pressure sensor; 404, sealing member; 405, elastic airbag; 406, inlet check valve; 407, outlet check valve; 5, positioning mechanism; 501, clamping plate; 502, sliding rod; 503, first spring; 504, fixing frame; 6, cylinder; 7, fixing plate; 701, pressure rod; 702, pressure block; 8, assembly mechanism; 801, mounting plate; 802, vertical rod; 803, second spring; 804, rotating shaft; 805, pressure plate; 806, gear; 807, convex tooth rod; 808, connecting rod; 809, cross bar; 9, lens barrel; 10, lens. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 7The present invention provides a technical solution: a rotation positioning assembly device for an optical lens, comprising a bottom plate 1, a fixing rod 2 and a top plate 3, wherein the fixing rod 2 is vertically fixed on the bottom plate 1, the fixing rod 2 is fixed with a top plate 3 parallel to the bottom plate 1, a cylinder 6 is fixed on the lower end surface of the top plate 3, a fixing plate 7 is fixed on the output end of the cylinder 6, an assembly mechanism 8 is installed on the fixing plate 7, the assembly mechanism 8 comprises a mounting plate 801, a vertical rod 802, a second spring 803, a rotating shaft 804, a pressing plate 805, a gear 806, a convex tooth rod 807, a connecting rod 808 and a cross rod 809, the mounting plate 801 is arranged directly below the fixing plate 7, the vertical rod 802 is symmetrically fixed to the upper end surface of the mounting plate 801, the vertical rod 802 is slidably connected to the fixing plate 7, and one end of the second spring 803 is also fixed on the mounting plate 801 The other end of the second spring 803 is fixed on the fixed plate 7. The bearing on the mounting plate 801 is connected to the rotating shaft 804. The lower end of the rotating shaft 804 is fixed with a pressure plate 805. The upper end of the rotating shaft 804 is fixed with a gear 806. The gear 806 meshes with the convex tooth rod 807 for transmission. The convex tooth rod 807 and the mounting plate 801 are slidingly connected. One end of the connecting rod 808 is rotatably connected to the convex tooth rod 807. The other end of the connecting rod 808 is rotatably connected to the cross bar 809. The cross bar 809 is fixed on the rear side of the fixed plate 7. When the mounting plate 801 moves relative to the fixed plate 7, the transmission action of the connecting rod 808 causes the convex tooth rod 807 to slide under force, and the transmission action between the convex tooth rod 807 and the gear 806 provides a force for the rotation of the rotating shaft 804 and the pressure plate 805.

[0028] The positioning mechanism 5 includes a clamping plate 501, a sliding rod 502, a first spring 503 and a fixing frame 504. The clamping plate 501 is arranged at an equal angle in the base 401, and the upper end of the clamping plate 501 is a slope structure, and the clamping plate 501 contacts the lens barrel 9 to achieve a limiting effect; the clamping plate 501 is also fixed with a sliding rod 502, and the sliding rod 502 and the base 401 are slidably connected; one end of the first spring 503 is also fixed with the sliding rod 502, and the other end of the first spring 503 is fixed on the fixing frame 504, and the fixing frame 504 is fixed at an equal angle to the outside of the base 401;

[0029] When using the rotation positioning assembly equipment of the optical lens, such as Figure 1-Figure 7As shown, first, the lower end surface of the lens barrel 9 is brought into contact with the clamping plate 501 and pressed, and the inclined surface structure at the upper end of the clamping plate 501 can make the lens barrel 9 and the clamping plate 501 slide. Since the diameter of the lens barrel 9 is greater than the distance between the clamping plates 501, the clamping plate 501 is forced to move, and the sliding guide effect between the slide bar 502 and the base 401 can ensure the stability of the movement of the clamping plate 501. At this time, the first spring 503 is forced to shrink until the lower end surface of the lens barrel 9 contacts the sealing member 404. At this time, the clamping plate 501 is pressed by the first spring 503. 501 applies a force to ensure the stability of the fixing of the lens barrel 9, and then the lens 10 is matched with the upper opening of the lens barrel 9, so as to realize the positioning of the lens 10 and the lens barrel 9. When assembling the lens 10 and the lens barrel 9, a pressure plate 805 with a diameter slightly smaller than that of the lens 10 is selected and fixed on the rotating shaft 804 by bolts. By controlling the extension of the cylinder 6, the fixing plate 7 and the assembly mechanism 8 can be driven to move downward. When the pressure plate 805 moves downward to contact with the lens 10, the cylinder 6 continues to extend, so that the mounting plate 801 is forced to move relative to the fixing plate 7, and cooperates with the vertical rod 8 The sliding guide effect between the second spring 802 and the fixing plate 7 can ensure the stability of the movement of the mounting plate 801. At this time, the second spring 803 is forced to shrink. Through the elastic effect of the second spring 803, the pressure plate 805 can exert pressure on the lens 10, so that the lens 10 is forced to be assembled with the lens barrel 9. In addition, since the elastic force of the second spring 803 is related to the shrinkage distance of the second spring 803, that is, as the shrinkage distance of the second spring 803 increases, the pressure exerted by the pressure plate 805 on the lens 10 gradually increases, thereby effectively avoiding the initial excessive pressure from causing When the lens 10 is damaged and the mounting plate 801 is forced to move relative to the fixed plate 7, the transmission effect of the connecting rod 808 can make the convex gear rod 807 move under force, and the meshing transmission effect between the convex gear rod 807 and the gear 806 can make the rotating shaft 804 and the pressing plate 805 rotate under force, so that when the pressing plate 805 exerts a downward pressure on the lens 10, the pressing plate 805 can rotate synchronously. Through the rotation of the pressing plate 805, the lens 10 can be uniformly stressed as a whole, thereby ensuring the assembly effect of the lens 10 and the lens barrel 9;

[0030] A display 101 is fixed on the bottom plate 1, and a detection mechanism 4 is also fixed on the bottom plate 1, and a positioning mechanism 5 is installed on the detection mechanism 4; the detection mechanism 4 includes a base 401, an air flow channel 402, a pressure sensor 403, a seal 404, an elastic airbag 405, an air inlet check valve 406 and an air outlet check valve 407, the base 401 is fixed on the bottom plate 1, and the central axis of the base 401 coincides with the central axis of the pressure plate 805, and a lens barrel 9 is placed in the base 401; an air flow channel 402 is opened in the base 401, and a pressure sensor 403 is installed in the air flow channel 402, and the pressure sensor 403 The base 401 is electrically connected to the display 101; a sealing member 404 is fixed inside the base 401, and the sealing member 404 contacts the lower end surface of the lens barrel 9 to achieve a sealing effect, and a lens 10 is placed on the lens barrel 9; an elastic airbag 405 is fixed to the bottom plate 1 symmetrically, and an air inlet check valve 406 and an air outlet check valve 407 are installed on the elastic airbag 405, and the elastic airbag 405 is connected to the air flow channel 402 through the air outlet check valve 407; a pressure rod 701 is fixed to the fixing plate 7 symmetrically, and a pressure block 702 is fixed to the lower end of the pressure rod 701, and the pressure block 702 is located directly above the elastic airbag 405;

[0031] During the assembly process of the lens 10 and the lens barrel 9, Figure 1-Figure 7As shown, when the fixing plate 7 and the assembly mechanism 8 move downward, the pressure rod 701 and the pressure block 702 are synchronously driven to move. When the pressure block 702 contacts the elastic airbag 405, the lens 10 and the lens barrel 9 are in an assembled state, and the lens 10 blocks the upper opening of the lens barrel 9. Under the pressure applied by the pressure plate 805, the lens barrel 9 is in close contact with the sealing member 404 to achieve the sealing effect of the lower opening of the lens barrel 9. When the pressure block 702 continues to move downward to cause the elastic airbag 405 to contract under force, Through the action of the inlet check valve 406 and the outlet check valve 407, the air in the elastic airbag 405 enters the airflow channel 402 through the conduit. At this time, the airflow channel 402, the lens barrel 9, the seal 404 and the lens 10 form a sealed space. As the gas enters the airflow channel 402, the air pressure in the sealed space increases until the second spring 803 contracts to the limit state, so that the lens barrel 9 and the lens 10 are completely assembled, and the airflow channel 402, the lens barrel 9, the seal 404 and the lens 10 form a sealed space. The air pressure in the sealed space is at its maximum. With the help of the pressure sensor 403, the air pressure in the sealed space can be monitored in real time, and the relevant data can be transmitted to the display 101 for display so that the staff can view it. After a period of time, the air pressure change is observed. If the air pressure change is within the standard range (the air pressure change is less than 0.2Kpa), the assembly quality of the surface lens barrel 9 and the lens 10 is qualified. Otherwise, it indicates that the assembly quality of the lens barrel 9 and the lens 10 is unqualified and is a defective product, thereby realizing the assembly quality detection function of the lens barrel 9 and the lens 10. After the detection is completed, the cylinder 6 contracts to drive the fixed plate 7 and the pressure plate 805 to move up. As the pressure applied by the pressure plate 805 to the lens 10 decreases, the lens barrel 9 and the lens 10 can automatically move up a certain distance under the action of the air pressure in the sealed space (due to the limiting effect of the pressure plate 805, the lens barrel 9 can be prevented from directly popping out and being damaged by bumping), thereby facilitating the removal of the lens barrel 9. This is the working principle of the rotation positioning assembly device of the optical lens.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotational positioning assembly device for an optical lens, comprising a bottom plate (1), a fixing rod (2) and a top plate (3), wherein the fixing rod (2) is vertically fixed to the bottom plate (1), and the top plate (3) parallel to the bottom plate (1) is fixed to the fixing rod (2), wherein: A cylinder (6) is fixed to the lower end surface of the top plate (3); a fixed plate (7) is fixed to the output end of the cylinder (6); an assembly mechanism (8) is mounted on the fixed plate (7); the assembly mechanism (8) comprises a mounting plate (801), a vertical rod (802), a second spring (803), a rotating shaft (804), a pressure plate (805), a gear (806), a convex gear rod (807), a connecting rod (808) and a cross rod (809); the mounting plate (801) is arranged directly below the fixed plate (7); a vertical rod (802) is symmetrically fixed to the upper end surface of the mounting plate (801); the vertical rod (802) and the fixed plate (7) are in sliding connection; one end of the second spring (803) is also fixed to the mounting plate (801); the other end of the second spring (803) is fixed to the mounting plate (801); On the fixed plate (7), a rotating shaft (804) is connected to a bearing on the mounting plate (801), a pressing plate (805) is fixed to the lower end of the rotating shaft (804), a gear (806) is fixed to the upper end of the rotating shaft (804), the gear (806) is meshed with a convex toothed rod (807) for transmission, the convex toothed rod (807) and the mounting plate (801) are slidably connected, one end of a connecting rod (808) is rotatably connected to the convex toothed rod (807), the other end of the connecting rod (808) is rotatably connected to a cross bar (809), the cross bar (809) is fixed to the rear side of the fixed plate (7), a display (101) is fixed to the bottom plate (1), a detection mechanism (4) is also fixed to the bottom plate (1), and a positioning mechanism (5) is installed on the detection mechanism (4).

2. The rotation positioning assembly device of an optical lens according to claim 1, characterized in that: The detection mechanism (4) comprises a base (401), an air flow channel (402), a pressure sensor (403), a sealing member (404), an elastic airbag (405), an air inlet check valve (406) and an air outlet check valve (407); the base (401) is fixed on the bottom plate (1), and the central axis of the base (401) coincides with the central axis of the pressure plate (805); and a lens barrel (9) is placed in the base (401).

3. The rotation positioning assembly device for an optical lens according to claim 2, characterized in that: An air flow channel (402) is provided in the base (401), a pressure sensor (403) is installed in the air flow channel (402), and the pressure sensor (403) is electrically connected to the display (101).

4. The rotation positioning assembly device for an optical lens according to claim 2, characterized in that: A sealing member (404) is also fixed in the base (401), and the sealing member (404) contacts the lower end surface of the lens barrel (9) to achieve a sealing effect, and a lens (10) is placed on the lens barrel (9).

5. The rotation positioning assembly device for an optical lens according to claim 2, characterized in that: The elastic airbag (405) is fixed on the bottom plate (1) in a bilaterally symmetrical manner, and an air inlet check valve (406) and an air outlet check valve (407) are installed on the elastic airbag (405), and the elastic airbag (405) is connected to the air flow channel (402) via the air outlet check valve (407).

6. The rotation positioning assembly device for an optical lens according to claim 5, characterized in that: The positioning mechanism (5) comprises a clamping plate (501), a sliding rod (502), a first spring (503) and a fixing frame (504); the clamping plate (501) is arranged at an equal angle in the base (401); the upper end of the clamping plate (501) is an inclined surface structure; and the clamping plate (501) contacts the lens barrel (9) to achieve a limiting effect.

7. The rotation positioning assembly device for an optical lens according to claim 6, characterized in that: A sliding rod (502) is also fixed on the clamping plate (501), and the sliding rod (502) is slidably connected to the base (401).

8. The rotational positioning assembly device for an optical lens according to claim 7, characterized in that: One end of a first spring (503) is also fixed on the slide bar (502), and the other end of the first spring (503) is fixed on a fixing frame (504), and the fixing frame (504) is fixed at an equal angle on the outside of the base (401).

9. The rotation positioning assembly device for an optical lens according to claim 8, characterized in that: The fixing plate (7) is also symmetrically fixed with a pressure rod (701), and a pressure block (702) is fixed at the lower end of the pressure rod (701), and the pressure block (702) is located directly above the elastic airbag (405).

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