Camera uv curing jig

Abstract

The utility model discloses a kind of jigs for camera UV curing, belong to UV lamp curing technical field. Including jig plate, the jig plate rotation is connected with base, the base is provided with 4 spring plunger, the spring plunger is respectively located in the 4 vertices of a virtual square, the center of the virtual square is located on the rotating shaft of the jig plate, the jig plate is provided with 4 locating posts, one end of the locating post is provided with the locating groove matched with spring plunger, the locating post rotates to the spring plunger, the ball head portion of the spring plunger is positioned into the locating groove and positioned;The base is also provided with microswitch and counter, the trigger protrusion of the microswitch is used in cooperation with the locating post, in the rotating process of the jig plate, when the locating post passes through the microswitch, trigger protrusion is extruded to thereby trigger microswitch to produce trigger signal, and the trigger signal is accumulated and displayed by the counter.

Description

Technical Field

[0001] This utility model relates to the field of UV curing technology, and in particular to a fixture for UV curing of cameras. Background Technology

[0002] UV curing technology is an advanced process that uses ultraviolet (UV) light to polymerize, crosslink, and transform liquid materials (such as UV adhesives, UV inks, and UV coatings) into a solid state in a very short time. It is widely used in electronics, optics, medical, packaging, and printing industries and is hailed as one of the representative technologies of "green manufacturing".

[0003] Existing camera manufacturing processes also incorporate UV curing technology. Specifically, since the camera lens and base are connected by threads, a ring of UV adhesive needs to be applied to the threaded connection. After rotating the lens to focus to the correct modulation transfer function (MTF value), it is then cured in a UV curing oven, thereby achieving anti-loosening and waterproof effects for the camera. The specific operation process is as follows: Figure 1 As shown, the cameras, after being coated with UV adhesive, are neatly arranged on a fixture plate and fed into a UV curing oven along a track. UV light sources are placed on both sides of the feeding direction for one UV curing treatment. After the fixture plate is removed along the track, it is manually rotated 90° and fed into the UV curing oven again for another UV curing treatment. Following these steps, different numbers of UV curing treatments are performed on different camera products and different sides of the camera products.

[0004] However, in actual production, it was found that the yield rate of cameras using UV curing is not high, especially in terms of waterproofing. This is mainly because UV curing technology has strict requirements on the UV irradiation time and number of times, especially for the UV curing of precision optical components, such as lenses. Specifically, one less UV irradiation will cause the UV adhesive to be too soft, affecting the waterproofing effect; one more irradiation will cause excessive hardening, leading to embrittlement of the UV adhesive, which will also seriously affect the waterproofing effect.

[0005] Therefore, in the UV curing production line of cameras, how to reduce the impact of human factors during manual operation and improve the UV curing effect and yield of cameras is an urgent technical problem to be solved. Utility Model Content

[0006] To address the technical problem of reducing the impact of human factors during the UV curing process of cameras and improving the UV curing effect and yield of cameras, this utility model provides a camera UV curing fixture from the perspective of improving the fixture plate. This fixture plate allows for accurate control of the rotation angle of the fixture plate and the number of UV curing cycles of the camera product during operation, thereby improving the UV curing effect and yield of the camera.

[0007] This application provides a fixture for UV curing of a camera, including a fixture plate, a base rotatably connected to the fixture plate, and four spring plungers on the base. The spring plungers are located at the four vertices of a virtual square, the center of which is located on the rotation axis of the fixture plate. The fixture plate has four positioning posts evenly distributed on a virtual circle centered on the rotation center. One end of each positioning post has a positioning groove that mates with the spring plunger. When the positioning post rotates to the position of the spring plunger, the ball head of the spring plunger extends into the positioning groove for positioning. The base is also equipped with a micro switch and a counter. The two ends of the micro switch are connected to the counting input terminal of the counter. The trigger protrusion of the micro switch is used in conjunction with the positioning post. During the rotation of the fixture plate, when the positioning post passes the micro switch, it squeezes the trigger protrusion, thereby triggering the micro switch to generate a trigger signal. This trigger signal is accumulated and displayed by the counter.

[0008] Furthermore, a microswitch adjustment plate is provided between the base and the microswitch, and the microswitch adjustment plate is used to adjust the distance between the trigger protrusion of the microswitch and the positioning post in the triggered state.

[0009] Furthermore, the counter is equipped with a count reset button, the two ends of which are connected to the reset input terminal of the counter.

[0010] Furthermore, the mechanism for rotational connection includes a rotating shaft and a bearing, the rotating shaft being fixedly connected to the fixture plate, and the bearing being fixedly connected to the base.

[0011] Furthermore, the bearing is a one-way bearing.

[0012] Furthermore, a pad is provided on the other side of the base that is rotatably connected on one side.

[0013] Furthermore, the pad has a notch at the location corresponding to the second through hole.

[0014] Furthermore, the pad is made of phenolic resin.

[0015] Furthermore, the other side of the fixture plate, which is rotatably connected on one side, is provided with a fixture hole or a clamping hole.

[0016] This utility model also provides a camera UV curing oven, including the aforementioned camera UV curing fixture, wherein UV light sources are provided on the left and right sides of the camera UV curing fixture in the feeding direction.

[0017] Compared with the prior art, the technical solution provided in this application has the following advantages: (1) The UV curing fixture for cameras provided by this utility model can reduce the influence of human factors during manual operation of camera UV curing, and improve the UV curing effect and yield of cameras. The UV curing fixture for cameras provided by this utility model, by setting 4 sets of spring plungers and positioning pins at the 4 vertices of a virtual square, can ensure that the fixture plate rotates precisely 90° each time, avoiding local repeated UV curing or insufficient UV curing of the camera caused by insufficient or excessive rotation of the fixture plate during manual operation, which would cause the UV adhesive to become brittle or soft, affecting the fixation and waterproofing effect of the camera. At the same time, the positioning pins during the rotation process squeeze the micro switch trigger protrusion, triggering the micro switch to generate a trigger signal, which is transmitted to the counter and the counter accumulates and displays the number of UV curing times. This can avoid the camera side exceeding or falling below the standard UV curing times due to lack of UV curing count records, which would cause the UV adhesive on one side of the camera to become brittle or soft, affecting the fixation and waterproofing effect of the camera.

[0018] In summary, the camera UV curing fixture provided by this utility model can reduce the influence of human factors in manual operation during camera UV curing, facilitate accurate control of the rotation angle of the fixture plate and the number of UV curing cycles of the camera product during operation, and improve the fixation and waterproofing effect of the camera after UV curing.

[0019] (2) The present invention provides a camera UV curing fixture, by setting a micro switch fine adjustment plate, adjusting the shortest distance between the trigger protrusion of the micro switch and the positioning post, ensuring that the positioning post can only contact the trigger protrusion and squeeze the trigger protrusion when passing the micro switch, thereby triggering the micro switch to generate a trigger signal. It also helps to reduce the assembly error between directly purchased standard parts and reduce the modification cost.

[0020] (3) The camera UV curing fixture provided by this utility model, by setting a count reset button, can be applied to camera products with different UV curing times requirements. At the same time, pressing the count reset button can also be used as the starting action of UV curing operation, which is convenient for continuous operation of UV curing of camera products with different UV curing times requirements. By setting a one-way bearing, it is beneficial to unify the operation standards and orderly operation of UV curing process, and reduce the human factor of manual operation. By setting a pad, it is beneficial to adjust the overall height of the fixture to make it suitable for existing UV curing ovens, avoiding the need to modify the UV curing oven due to the improvement of the fixture plate, and also facilitating the leveling of the fixture plate. The notch on the pad plate is convenient for replacing damaged spring plungers, reducing maintenance costs and maintenance process.

[0021] (4) The UV curing oven provided by this utility model, using the aforementioned camera UV curing fixture, can reduce the influence of human factors in manual operation during camera UV curing, and improve the UV curing effect and yield of the camera. Attached Figure Description

[0022] Figure 1 This is a schematic diagram illustrating the use of a fixture plate for UV curing cameras in existing technologies. Figure 2 The explosion of the UV curing fixture for the camera of this utility model Figure 1 ; Figure 3 The explosion of the UV curing fixture for the camera of this utility model Figure 2 ; Figure 4 This is a three-dimensional structural diagram of the UV curing fixture for cameras according to this utility model; Figure 5 This is a partial three-dimensional structural diagram of the positioning post and micro switch in the UV curing fixture for the camera of this utility model; Figure 6 This is a terminal configuration diagram of the counter in the UV curing fixture for the camera of this utility model; Figure 7 This is a diagram showing the terminal connections of the counter, micro switch, and counter reset button in the UV curing fixture for the camera of this utility model. Figure 8 This is a three-dimensional structural diagram of the positioning post and spring plunger in the UV curing fixture for the camera of this utility model. Figure 9 This is a schematic diagram illustrating the use of the UV curing fixture for cameras according to this utility model.

[0023] Explanation of reference numerals in the attached figures: 100. Fixture plate; 101. Fixture hole; 102. First screw hole; 200. Base; 201. First through hole; 202. Second through hole; 203. Second screw hole; 300. Pad; 301. Third screw hole; 302. Third through hole; 400. Positioning pin; 401. Positioning groove; 500. Counter; 501. Counter reset button; 600. Shaft; 601. Flange; 700. Micro switch; 701. Micro switch adjustment plate; 702. Trigger protrusion; 703. Connecting circuit; 800. Bearing; 801. Bearing base; 900. Spring plunger; 901. Ball head part. Detailed Implementation

[0024] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. This utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0025] In the description of this utility model, it should be understood that the terms "center", "left", "right", "top", "bottom", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0027] It should be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0028] It should be noted that the counter used in the specific implementation is an Omron H7EC-N counter; the micro switch is a small micro switch with copper contacts KW12; the count reset button is a 12mm reset metal push button switch; and the one-way bearing is a CSK-BF6201 one-way bearing.

[0029] See Figures 2-4This utility model provides a UV curing fixture for cameras, including a fixture plate 100 and a base 200. One side surface of the fixture plate 100 has neatly arranged fixture holes 101 for placing cameras. It can also be configured as a clamping unit for clamping cameras. The other side of the fixture plate 100 is rotatably connected to the top surface of the base 200. Specifically, the rotatable connection mechanism consists of an interference-fit shaft 600 and a bearing 800. The top of the shaft 600 has a flange 601, which is fixedly connected to the fixture plate 100 by screws and nuts. The bottom of the bearing 800 has a bearing base 801, which passes through the first through hole 201 of the base 200 from the bottom surface of the base 200, and the bearing base 801 is fixed to the bottom surface of the base 200 by screws and nuts. This design can appropriately reduce the overall height of the UV curing fixture for cameras, adapting to existing UV curing ovens and avoiding modifications to the UV curing oven due to improvements to the fixture plate 100. Bearing 800 can also be set as a one-way bearing to avoid some rotating clockwise and some counterclockwise during manual operation, which is conducive to unified operation standards and orderly operation of UV curing production line, and reduces human factors in manual operation.

[0030] The base 200 is also provided with four second through holes 202. A quadrilateral formed by the four second through holes 202 is a square, with a first through hole 201 located at the center of this square. Four spring plungers 900 are respectively installed within the four second through holes 202, and the ball head portion 901 of each spring plunger 900 is retractable. The fixture plate 100 is provided with four positioning posts 400 that cooperate with the four spring plungers 900. The four positioning posts 400 are evenly distributed on a virtual circle centered on the rotation center of the fixture plate 100. Figure 3 As shown, the two opposing positioning posts 400 are located on the central axis of the jig plate 100. Of course, the two opposing positioning posts 400 can also be located on a non-central axis of the jig plate 100. The top of the positioning post 400 has external threads, which are threadedly connected to the first screw hole 102 on the jig plate 100. A positioning groove 401 is provided on the bottom end face of the positioning post 400. The positioning groove 401 cooperates with the spring plunger 900 to rotate and position the jig plate 100. Figure 8 As shown. In use, the fixture plate 100 is rotated. When the positioning pin 400 is rotated to the spring plunger 900, the ball head portion 901 of the spring plunger 900 extends into the positioning groove 401 to position the fixture plate 100 and ensure that the fixture plate 100 rotates precisely 90°.

[0031] like Figures 4-7 As shown, the base 200 is also equipped with a micro switch 700 and a counter 500, arranged as follows: Figure 6The terminal configuration diagram of counter 500 shown illustrates connecting two terminals of micro switch 700 to the counting input terminal of counter 500. Micro switch 700 has a trigger protrusion 702, and counter 500 has a counting reset button 501. The two terminals of the counting reset button 501 are connected to the reset input terminal of counter 500. The specific terminal connection relationship is as follows: Figure 7 As shown. When the rotating fixture plate 100 positions the positioning pin 400 at the spring plunger 900, the positioning pin 400 can and can only contact the trigger protrusion 702 and press the trigger protrusion 702, thereby triggering the micro switch 700, forming a triggered state, and generating a trigger signal. This trigger signal is transmitted to the counter 500 through the connection circuit 703, where the counter 500 accumulates, records, and displays the signal. The micro switch 700 can also be located in other positions. During the rotation of the fixture plate 100, when the positioning pin 400 passes the micro switch 700, the positioning pin 400 can and can only contact the trigger protrusion 702 and press the trigger protrusion 702, thereby triggering the micro switch 700 to generate a trigger signal. The micro switch 700 is also provided with a micro switch fine adjustment plate 701, which is located between the base 200 and the micro switch 700. It is used to adjust the shortest distance between the trigger protrusion 702 and the positioning post 400 when the micro switch 700 is triggered by the positioning post 400, i.e., in the triggered state. This ensures that when the positioning post 400 passes the micro switch 700, it can only contact the trigger protrusion 702 and squeeze the trigger protrusion 702 to trigger the micro switch 700 to generate a trigger signal. It also helps to reduce the assembly error between directly purchased standard parts.

[0032] The base 200 also has a pad 300 on its bottom surface. The pad 300 is made of phenolic resin. Screws pass through the second screw hole 203 of the base 200 and are threaded into the third screw hole 301 of the pad 300, fixing the base 200 and the pad 300 together. The pad 300 has a notch at the corresponding position of the second through hole 202 of the base 200, so that the pad 300 does not cover the second through hole 202 on the bottom surface of the base 200. This facilitates the replacement of the damaged spring plunger 900, reducing maintenance costs and procedures. The pad 300 also has a third through hole 302. The diameter of the third through hole 302 is greater than or equal to the diameter of the bearing base 801. When the bearing base 801 protrudes from the bottom surface of the base 200, the thickness of the pad 300 can be adjusted to be greater than the height of the bearing base 801 protruding from the bottom surface of the base 200, thus leveling the fixture for UV curing the camera.

[0033] When using, such as Figure 9As shown, the cameras coated with UV adhesive are neatly arranged on the fixture plate 100. The fixture plate 100 is rotated so that the positioning post 400 is positioned at the spring plunger 900. The count reset button 501 is pressed to reset the count to "1". Then, the fixture is fed into the UV curing oven along the feeding direction. The UV curing oven is equipped with UV light sources on the left and right sides of the feeding direction. The UV light from the UV light sources shines on the camera products from both sides of the fixture plate 100 to cure them. Then, the fixture is taken out in the opposite direction of the feeding direction. The fixture plate 100 is rotated 90° clockwise again so that the positioning post 400 is positioned at the next spring plunger 900. At the same time, the positioning post 400 presses the trigger protrusion 702, thereby triggering the micro switch 700 to generate a trigger signal. This trigger signal is transmitted to the counter 500 through the connection circuit 703. The counter 500 increments the count by 1, and the UV curing count is displayed as "2". When applied to specific camera products, repeat the above rotation steps according to the number of UV curing cycles for different camera products until the counter 500 displays the required number of UV curing cycles.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fixture for UV curing a camera, comprising a fixture plate (100), characterized in that, The fixture plate (100) is rotatably connected to a base (200). The base (200) is provided with four spring plungers (900). The spring plungers (900) are located at the four vertices of a virtual square. The center of the virtual square is located on the rotation axis of the fixture plate (100). The fixture plate (100) is provided with four positioning pins (400). The positioning pins (400) are evenly distributed on a virtual circle with the rotation center as the center. One end of the positioning pin (400) is provided with a positioning groove (401) that cooperates with the spring plunger (900). When the positioning pin (400) rotates to the position of the spring plunger (900), the ball head (901) of the spring plunger (900) extends into the positioning groove (401) for positioning. The base (200) is also provided with a micro switch (700) and a counter (500). The two ends of the micro switch (700) are connected to the counting input terminal of the counter (500). The trigger protrusion (702) of the micro switch (700) is used in conjunction with the positioning post (400). During the rotation of the fixture plate (100), when the positioning post (400) passes the micro switch (700), it squeezes the trigger protrusion (702), thereby triggering the micro switch (700) to generate a trigger signal. This trigger signal is accumulated and displayed by the counter (500).

2. The fixture for UV curing of cameras according to claim 1, characterized in that, A micro switch adjustment plate (701) is provided between the base (200) and the micro switch (700). The micro switch adjustment plate (701) is used to adjust the distance between the trigger protrusion (702) of the micro switch (700) and the positioning post (400) in the triggered state.

3. The camera UV curing fixture according to claim 1, characterized in that, The counter (500) is equipped with a count reset button (501), and the two ends of the count reset button (501) are connected to the reset input terminal of the counter (500).

4. The camera UV curing fixture according to claim 1, characterized in that, The mechanism for rotational connection includes a rotating shaft (600) and a bearing (800), the rotating shaft (600) being fixedly connected to the jig plate (100) and the bearing (800) being fixedly connected to the base (200).

5. The camera UV curing fixture according to claim 4, characterized in that, The bearing (800) is a one-way bearing.

6. The camera UV curing fixture according to claim 1, characterized in that, A pad (300) is provided on the other side of the base (200) which is rotatably connected on one side.

7. The fixture for UV curing a camera according to claim 6, characterized in that, The pad (300) has a notch at the location corresponding to the second through hole (202).

8. The camera UV curing fixture according to claim 7, characterized in that, The pad (300) is made of phenolic resin.

9. The camera UV curing fixture according to claim 1, characterized in that, The jig plate (100) rotatably connected on one side is provided with a jig hole (101) or a clamp hole on the other side.

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