Thread-free locking jig and method for improving mounting quality of lens

Abstract

The invention relates to the field of thread-free locking, and discloses a thread-free locking jig and a method for improving lens installation quality, the thread-free locking jig comprises a base, the upper side of the base is provided with a motor groove, the lower side of the base is provided with a backlight groove, the bottom of the backlight groove and the bottom of the motor groove are communicated to form a fixed-height hole, and a plurality of light sources are arranged in the backlight groove. The light sources are used for illuminating the height fixing holes to form backlight. The method is used for confirming the center of the motor carrier through backlight photographing and guaranteeing lens installation quality.

Description

Technical Field

[0001] The invention relates to the field of threadless locking, and in particular to a threadless locking fixture and a method for improving lens installation quality. Background Art

[0002] The gap between the threadless lens and the motor design is small, with a conventional design of only 0.015 to 0.02 mm on one side. The current threadless locking machines in the industry use a downward-looking camera to identify the center of the motor surface feature (such as the upper spring plate / iron shell opening) as the center of the motor carrier during locking. However, the upper spring plate of the motor or the opening of the motor iron shell is offset from the center of the motor carrier, resulting in a deviation between the identified center and the actual center of the carrier. As a result, the lens may not be aligned with the center of the motor carrier when installed, resulting in assembly interference, resulting in poor locking and material ejection.

[0003] With the development of society, the requirements for process are getting higher and higher, and the requirements for locking yield are also getting higher and higher. Summary of the invention

[0004] The present invention aims to provide a threadless locking fixture, which is used for taking photos under backlight to confirm the center of a motor carrier and ensure the quality of lens installation.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a threadless locking fixture, comprising a base, a motor groove is provided on the upper side of the base, a backlight groove is provided on the lower side of the base, the bottom of the backlight groove and the motor groove are connected to form a height-fixing hole, a plurality of light sources are provided in the backlight groove, and the plurality of light sources are used to illuminate the height-fixing hole to form a backlight.

[0006] The beneficial effects of this program are:

[0007] 1. The inventor believes that the essence of identifying the center of the motor carrier is to identify the hollow position in the middle of the motor for installing the lens (the inner circle of the carrier) to facilitate the installation of the lens. Therefore, it is more accurate to directly identify the center of the inner circle of the carrier to determine the center of the motor carrier;

[0008] However, the inventor took photos of the motor many times and was unable to identify the outline of the inner circle of the carrier because there would be shadows in the photos. Tracing back to the source, it was found that when taking photos, because the lens of the downward-looking camera needed to face the motor to take photos, only the ring light source around the lens could be used for lighting. Taking photos under such a ring light source would cause shadows.

[0009] So the inventor changed his thinking and aimed to identify the contour of the inner circle of the carrier. He changed the fill light method and placed the light source coaxial with the camera and behind the object to be measured (motor). Backlighting was used to highlight the contour of the opaque object. This lighting method is only suitable for occasions where the information required by the target to be measured can be obtained from its contour, which can fully achieve the inventor's purpose.

[0010] Finally, the inventors set a light source at the bottom of the carrier to form a backlight effect. The light passes through and illuminates the inner circle of the carrier. The inner circle contour of the carrier is immediately identified, thereby improving the accuracy of the confirmed center of the motor carrier and ensuring the quality of lens installation.

[0011] Furthermore, it also includes a transparent light guide column, which is used to be inserted into the height-fixing hole to limit the height of the lens, and is used to guide light to illuminate the bottom of the motor.

[0012] Furthermore, an annular cover plate is provided on the backlight groove, the light source is fixed on the annular cover plate, and the light guide column passes through the annular cover plate, the backlight groove and the height-fixing hole in sequence.

[0013] Furthermore, the light source is circumferentially arranged on the edge of the annular cover plate, and the light source includes a common light source and a UV light source that are arranged at intervals.

[0014] The present invention aims to provide a method for improving the installation quality of a lens, which is used for taking photos under backlight to confirm the center of a motor carrier and ensure the installation quality of the lens.

[0015] To achieve the above object, the present invention adopts the following technical solution: A method for improving the quality of lens installation comprises the following steps:

[0016] Step 1: prepare a platform and a threadless locking fixture, wherein the threadless locking fixture comprises a base and a light guide column, wherein the light guide column is vertically mounted on the platform, the base is placed on the platform, and the light guide column passes through the annular cover plate, the backlight slot and the height setting hole of the base in sequence;

[0017] Step 2: Place the motor into the motor slot of the base, turn on the ordinary light source on the bottom of the base, turn off the light source above the motor, take a photo of the motor to locate it, and identify the inner circle of the motor based on the positioning data;

[0018] Step 3: Place the camera into the motor and make contact with the top of the light guide;

[0019] Step 4: Turn on the light source above the motor and fix the motor and camera with glue.

[0020] Furthermore, in step four, after dispensing the glue, turn on the UV light source on the lower side of the base.

[0021] Furthermore, in step 4, after dispensing the glue, UV curing is used from above the motor.

[0022] Furthermore, in step 4, after dispensing the glue, turn off the light source above the motor, and turn on the UV light source and ordinary light source on the lower side of the base.

[0023] Furthermore, in step 4, a photo of the motor is taken, and the brightness of the light between the motor and the lens is used to determine whether glue has seeped in somewhere.

[0024] UV is ultraviolet light;

[0025] UV curing means: after dispensing, the glue is irradiated with ultraviolet light to accelerate its curing.

[0026] This solution also has the following effects:

[0027] 1. For snap-on motors, due to the undercut in the design, a notch is added to the inner circle of the carrier to ensure that the mold can be formed. In the prior art, after glue dispensing, it is usually kept silent for 5 seconds to ensure that the glue seeps into the gap around the lens and the carrier to increase the bonding area, and then the front UV curing is performed for 6S. Finally, the motor is sucked above the UV light source for reverse UV curing. The time interval from glue dispensing to reverse UV curing is more than 11 seconds. There is a high probability that glue has seeped into the notch of the carrier, which may cause adhesion of the motor's moving parts.

[0028] This solution directly sets the UV light source on the lower side of the base. After turning on the UV light, glue is dispensed from the front. The UV light immediately irradiates the bottom of the motor through the light guide. When glue seeps into the gap, the surface of the glue will be cured by UV and the glue seepage will stop. This not only solves the problem of glue seepage at the gap, but also reduces the UV curing process and improves productivity.

[0029] 2. During the locking process, the base is used to fix the position of the motor, and the light guide is used to fix the height of the lens. The height of the top of the light guide is consistent with or slightly higher than the height of the bottom of the lens, so that after the lens is placed on the light guide, the bottom height is exactly consistent with the design; and because the light guide is made of transparent material, it can transmit light, so that the light at the bottom can shine on the bottom of the motor.

[0030] 3. Install the light source on the annular cover so that it can be checked and replaced at any time.

[0031] 4. Ordinary light sources are bright and mainly serve as lighting; UV light sources are weaker and mainly serve to cure glue; for snap-on motors, when the UV light source in some positions fails, it is impossible to observe whether it is faulty because it is on the lower side of the base, but it can be observed indirectly; specifically, if the UV light source near the notch of the carrier fails, the glue infiltration there will be more serious than other places, and the curing time will be longer. Therefore, more glue will infiltrate the notch and more light will be blocked. The weaker the light intensity at this location, when the brightness is identified as weak in a certain place in the photo, it means that the UV light source at that location may be faulty, thus reminding the operator to check. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A three-dimensional diagram of Example 1 from a top view;

[0033] Figure 2 A three-dimensional exploded view of Example 1 from a top view;

[0034] Figure 3 A three-dimensional diagram of Example 1 from a bottom-up perspective;

[0035] Figure 4 A three-dimensional exploded view of Example 1 from a bottom-up perspective;

[0036] Figure 5 is a top view of the base of Example 1;

[0037] Figure 6 for Figure 5 Middle AA section view;

[0038] Figure 7 This is a flow chart of Example 3. DETAILED DESCRIPTION

[0039] The following is further described in detail through specific implementation methods:

[0040] The figure marks in the drawings of the specification include: base 1, motor slot 11, backlight slot 12, height setting hole 13, ordinary light source 14, annular cover 15, guide hole 16, bolt hole 17, light guide column 2, motor 3, lens 4.

[0041] Example 1

[0042] Example 1 is basically as Figure 1 As shown: A threadless locking fixture, including Figure 5 The base 1 shown, as Figure 6 As shown, a motor slot 11 is opened on the upper side of the base 1 , a backlight slot 12 is opened on the lower side of the base 1 , and the bottoms of the backlight slot 12 and the motor slot 11 are connected to form a height-fixing hole 13 .

[0043] like Figure 2-Figure 4 As shown, the backlight groove 12 is covered with an annular cover plate 15, which is bolted to the base 1, and a number of light sources are fixed on the edge of the annular cover plate 15 with glue, the light source includes an ordinary light source 14, and the ordinary light source 14 is an LED lamp, which is used to illuminate the height setting hole 13 to form a backlight.

[0044] It also includes a transparent light guide column 2. In this embodiment, the light guide column 2 is made of acrylic material. The light guide column 2 is used to insert into the height setting hole 13 to limit the height of the lens 4. The light guide column 2 is used to guide light to illuminate the bottom of the motor 3. The light guide column 2 passes through the annular cover 15, the backlight groove 12 and the height setting hole 13 in sequence.

[0045] Example 2

[0046] Embodiment 2 is based on Embodiment 1: the light source further includes a UV light source, the UV light source is a UV lamp, the UV light source is used to cure the overflowed glue, and the ordinary light source 14 and the UV light source are pasted on the edge of the annular cover plate 15 at intervals.

[0047] Example 3

[0048] The method for improving the lens installation quality is applicable to the locking of the snap-on motor 3 and the lens 4 without thread. The flow chart is as follows Figure 3 As shown, the following steps are included:

[0049] Step 1: prepare a platform and a threadless locking fixture, wherein the threadless locking fixture comprises a base 1 and a light guide column 2. Figure 1 As shown, a guide hole 16 is respectively opened on the two diagonals in the left and right directions of the base 1, and a bolt hole 17 is respectively opened on the two diagonals in the upper and lower directions of the base 1. The light guide column 2 is vertically installed on the platform. In this embodiment, the installation method is bolt connection. Two guide rods are welded on the platform and are located on both sides of the light guide column 2. The base 1 is placed on the platform, and the light guide column 2 passes through the annular cover plate 15, the backlight groove 12 and the height-fixing hole 13 of the base 1 in sequence. The two guide rods pass through the two guide holes 16 of the base 1 respectively to limit the base 1 horizontally, and the bolt holes 17 of the base 1 and the platform are fixed by bolts;

[0050] Step 2: Place the motor 3 into the motor slot 11 of the base 1, turn on the common light source 14 at the bottom of the base 1, turn off the light source above the motor 3, take a photo of the motor 3 to locate it, and identify the inner circle of the motor 3 based on the positioning data;

[0051] Step 3: Place the camera into the motor 3 and make it contact with the top of the light guide column 2;

[0052] Step 4, turn on the light source above the motor 3, apply glue to fix the motor 3 and the camera, turn off the light source above the motor 3, turn on the UV light source and the ordinary light source 14 on the lower side of the base 1; after 6 seconds, take a picture of the motor 3, and judge whether there is glue seepage somewhere based on the brightness of the light between the motor 3 and the lens 4. That is, if the brightness of the light is low, it means that more glue has seeped in that place. When solidifying, the glue blocks most of the light. It is necessary to check whether the UV lamp source is faulty in time.

[0053] Example 4

[0054] Example 4 is based on Example 3: a UV light source is prepared above the motor 3. In step 4, while turning on the UV light source on the lower side of the base 1 and the ordinary light source 14, UV curing is used from above the motor 3.

[0055] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A threadless locking fixture, characterized in that: It includes a base, a motor slot is provided on the upper side of the base, a backlight slot is provided on the lower side of the base, the bottom of the backlight slot and the motor slot are connected to form a height-fixing hole, a plurality of light sources are provided in the backlight slot, and the plurality of light sources are used to illuminate the height-fixing hole to form backlight.

2. A threadless locking fixture according to claim 1, characterized in that: It also includes a transparent light guide column, which is used to insert into the height-fixing hole to limit the height of the lens. The light guide column is used to guide light and illuminate the bottom of the motor.

3. A threadless locking fixture according to claim 2, characterized in that: An annular cover plate is provided on the backlight groove, the light source is fixed on the annular cover plate, and the light guide column passes through the annular cover plate, the backlight groove and the height-fixing hole in sequence.

4. The threadless locking fixture and the method for improving the lens installation quality according to claim 3 are characterized in that: The light source is circumferentially arranged on the edge of the annular cover plate, and the light source comprises a common light source and a UV light source which are arranged at intervals.

5. A method for improving lens installation quality, characterized in that: The following steps are involved: Step 1: prepare a platform and a threadless locking fixture, wherein the threadless locking fixture comprises a base and a light guide column, wherein the light guide column is vertically mounted on the platform, the base is placed on the platform, and the light guide column passes through the annular cover plate, the backlight slot and the height setting hole of the base in sequence; Step 2: Place the motor into the motor slot of the base, turn on the ordinary light source on the bottom of the base, turn off the light source above the motor, take a photo of the motor to locate it, and identify the inner circle of the motor based on the positioning data; Step 3: Place the camera into the motor and make contact with the top of the light guide; Step 4: Turn on the light source above the motor and fix the motor and camera with glue.

6. The method for improving lens installation quality according to claim 5, characterized in that: In step 4, after dispensing the glue, turn on the UV light source on the bottom side of the base.

7. The method for improving lens installation quality according to claim 5, characterized in that: In step 4, after dispensing the glue, use UV curing from above the motor.

8. The method for improving lens installation quality according to claim 5, characterized in that: In step 4, after dispensing glue, turn off the light source above the motor and turn on the UV light source and ordinary light source on the bottom side of the base.

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