Assembly jig and assembly method for lens cone

Abstract

The invention discloses an assembling jig and an assembling method for a lens cone, and relates to the technical field of lens assembling, and the assembling jig for the lens cone comprises a mounting substrate; the first positioning assembly is arranged on the mounting base part and is used for positioning the first lens cone part; the telescopic locking assembly is arranged on the mounting base part and comprises a detection component and a first gear capable of rotating, the first gear can be meshed with the locking gear of the positioned first lens cone part, and the detection component is used for detecting whether the detection end of the second lens cone part is in place or not; and the limiting piece is arranged at the joint of the preassembled lens cone part I and the preassembled lens cone part II, and the limiting piece is used for limiting the rotation of the lens cone part II. According to the assembling jig, the lens cone can be quickly positioned, the lens cone part is manually pre-assembled firstly, then the locking gear is driven by the locking assembly to replace manual thread pre-tightening, and the production efficiency and the locking quality are effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of lens assembly, and particularly to an assembling jig and an assembling method for a lens barrel. Background Art

[0002] At present, lens barrels are relatively tightly assembled components. The assembly of some tightly assembled lens barrels still requires manual operation. For lens barrel components assembled together by threading, during assembly, the two lens barrel components need to be tightened to within the required reference position spacing range to be considered qualified. Therefore, the efficiency of manual screwing assembly is relatively slow, and it is easy to have the situation of incomplete screwing. Therefore, it is necessary to design a jig that facilitates assemblers to quickly perform threading assembly on the lens barrel to improve the assembly efficiency and quality. Summary of the Invention

[0003] This application aims to solve one of the above technical problems in the prior art. To this end, an embodiment of this application provides an assembling jig for a lens barrel.

[0004] An embodiment of this application also provides an assembling method.

[0005] According to an embodiment of the first aspect of this application, an assembling jig for a lens barrel is provided, including

[0006] A mounting base;

[0007] A first positioning component, arranged on the mounting base, and the first positioning component is used to position a first lens barrel component;

[0008] A telescopable locking component, arranged on the mounting base, the locking component includes a detection member and a rotatable first gear, the first gear can be engaged with the locking gear of the positioned first lens barrel component, and the detection member is used to detect whether the detection end of the second lens barrel component is in place;

[0009] A limiting member, arranged at the connection of the pre-assembled first lens barrel component and the second lens barrel component, and the limiting member is used to limit the rotation of the second lens barrel component.

[0010] The above-mentioned assembly fixture for the lens barrel has at least the following beneficial effects: First, manually connect the lens barrel component two and the lens barrel component one, and adjust the first reference part of the lens barrel component two to be on the same side as the second reference part of the lens barrel component one. After completion, place the lens barrel component one pre-installed with the lens barrel component two on the first positioning component for positioning and limitation, and place the second reference part of the lens barrel component one back-to-back with the locking component. Then, place the limiting part at the connection of the pre-installed lens barrel component one and the lens barrel component two to limit the rotation of the lens barrel component two relative to the lens barrel component one. Drive the locking component to extend, so that the first gear moves to mesh with the part of the locking gear exposed outside the housing of the lens barrel component one, and drive the rotation of the locking gear by rotating the first gear, thereby connecting and locking the lens barrel component one and the lens barrel component two. When the detection end of the lens barrel component two is detected by the detection component, the first gear stops rotating, and at the same time, the locking component retracts to its original position. The assembly fixture for the lens barrel of the present application can quickly position the lens barrel. First, manually pre-install the lens barrel components, and then drive the locking gear through the locking component to replace manual thread pre-tightening, effectively improving production efficiency and the quality of locking, and ensuring that the two lens barrel components can be locked to the required distance.

[0011] According to the assembly fixture for the lens barrel described in the first aspect embodiment of the present application, the locking component further includes a mounting seat and a first driving member. The mounting seat is slidably arranged on the mounting base member through a guide rail slider structure. The first gear is rotatably arranged on the mounting seat. The first driving member is arranged on the mounting seat, and the first driving member drives the first gear to rotate through a transmission structure.

[0012] According to the assembly fixture for the lens barrel described in the first aspect embodiment of the present application, the first driving member is a motor. The transmission structure includes a second gear. The second gear is fixed to the output shaft of the motor, and the second gear meshes with the first gear.

[0013] According to the assembly fixture for the lens barrel described in the first aspect embodiment of the present application, the assembly fixture for the lens barrel further includes a second positioning component. The second positioning component is arranged on the locking component. During the process that the first gear moves to mesh with the locking gear of the lens barrel component one, the second positioning component can position the lens barrel component two.

[0014] According to the assembly fixture for the lens barrel described in the first aspect embodiment of the present application, the second positioning component includes two relatively arranged first positioning parts. There is a gap between the two first positioning parts, and guiding inclined surfaces are arranged on the opposite sides of the two first positioning parts facing each other.

[0015] The assembling fixture for the lens barrel according to the embodiment of the first aspect of the present application, the assembling fixture for the lens barrel further includes a second driving member, and the locking assembly can move towards the positioning assembly under the action of the second driving member.

[0016] The assembling fixture for the lens barrel according to the embodiment of the first aspect of the present application, the second driving member is a cylinder or an electric push rod.

[0017] The assembling fixture for the lens barrel according to the embodiment of the first aspect of the present application, the first positioning assembly includes at least two second positioning members, and a positioning groove for limiting the rotation of the first lens barrel component is formed after the two second positioning members are fixed to the installation base member.

[0018] The assembling fixture for the lens barrel according to the embodiment of the first aspect of the present application, the detection member is a limit switch, and during the movement of the first gear to mesh with the locking gear of the first lens barrel component, the end of the trigger rod of the limit switch moves below the detection end of the second lens barrel component.

[0019] According to the embodiment of the second aspect of the present application, an assembling method is provided, based on the above-mentioned assembling fixture for the lens barrel, including the following steps:

[0020] Insert the first connecting portion of the second lens barrel component into the second connecting portion of the first lens barrel component, and pre-tighten the external thread of the first connecting portion and the internal thread of the locking gear, wherein the first reference portion of the second lens barrel component should be adjusted to be on the same side as the second reference portion of the first lens barrel component;

[0021] Place the first lens barrel component pre-mounted with the second lens barrel component on the first positioning assembly, and place the second reference portion of the first lens barrel component back to back with the locking assembly;

[0022] Place the limiting member at the connection of the pre-assembled first lens barrel component and the second lens barrel component to limit the rotation of the second lens barrel component relative to the first lens barrel component;

[0023] Drive the locking assembly to extend, so that the first gear moves to mesh with the part of the locking gear exposed outside the housing of the first lens barrel component;

[0024] Rotate the first gear to drive the external thread of the first connecting portion to lock with the internal thread of the locking gear. When the detection end of the second lens barrel component is detected by the detection member, the first gear stops rotating, and at the same time, the locking assembly retracts to its original position.

[0025] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. Description of the Drawings

[0026] The present application will be further described below in conjunction with the accompanying drawings and embodiments;

[0027] Figure 1 It is a schematic structural diagram of the second lens barrel component in the embodiment of the present application;

[0028] Figure 2 It is a schematic structure of the first lens barrel component in the embodiment of the present application Figure 1 ;

[0029] Figure 3 It is a schematic structure of the first lens barrel component in the embodiment of the present application Figure 2 ;

[0030] Figure 4 It is a schematic connection diagram of the first lens barrel component and the second lens barrel component in the embodiment of the present application;

[0031] Figure 5 It is a schematic structural diagram of the assembly jig for the lens barrel in the embodiment of the present application Figure 1 ;

[0032] Figure 6 It is a schematic structural diagram of the assembly jig for the lens barrel in the embodiment of the present application Figure 2 ;

[0033] Figure 7 It is a schematic structural diagram of the assembly jig for the lens barrel in the embodiment of the present application Figure 3 。

[0034] Reference numerals: the second lens barrel component 110, the first reference portion 111, the detection end 112, the first connection portion 113, the first lens barrel component 120, the second connection portion 121, the locking gear 122, the window 123, the second reference portion 124, the mounting base member 210, the second positioning member 211, the mounting seat 220, the first positioning member 230, the connecting member 240, the detection member 250, the first driving member 260, the second gear 261, the second driving member 270, the first gear 280, the limiting member 290. Detailed Embodiments

[0035] This part will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the accompanying drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present application, but it should not be construed as a limitation on the protection scope of the present application.

[0036] In the description of the present application, it should be understood that regarding the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0037] In the description of the present application, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the recited number, and understandings such as "above", "below", "within", etc. include the recited number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0038] In the description of the present application, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0039] Referring to Figure 1 , the lens barrel component two 110 of the present application includes a housing and a first connection portion 113 for connecting with the lens barrel component one 120. The first connection portion 113 is cylindrical, the outer surface of the first connection portion 113 is provided with an external thread, and the lens barrel component two 110 has a first reference portion 111, and the first reference portion 111 is used to judge whether the lens barrel component two 110 and the lens barrel component one 120 are pre-assembled in place. For the convenience of automatic assembly, a detection end 112 is also provided on the housing of the lens barrel component two 110.

[0040] Referring to Figure 2 and Figure 3 , the lens barrel component one 120 of the present application includes a second connection portion 121, the second connection portion 121 can be inserted and connected with the first connection portion 113, a locking gear 122 is arranged inside the lens barrel component one 120, and a window 123 for the locking gear 122 to be exposed is arranged on the lens barrel component one 120 to facilitate the rotation of the locking gear 122. When the lens barrel component one 120 and the lens barrel component two 110 are pre-assembled, the locking gear 122 is connected with the external thread of the first connection portion 113, and the connecting thread is about half a turn to 1.5 turns. Among them, Figure 4 is a schematic diagram when the pre-assembly of the lens barrel component one 120 and the lens barrel component two 110 is completed. At this time, the second reference portion 124 of the lens barrel component one 120 and the first reference portion 111 of the lens barrel component two 110 are on the same side.

[0041] To improve the assembly efficiency of the lens barrel, as Figures 5 to 7As shown in the figure, an embodiment of the present application provides an assembly fixture for a lens barrel. Among them, the assembly fixture for the lens barrel includes a mounting base member 210, a first positioning component, a retractable locking component, and a limiting member 290.

[0042] The mounting base member 210 serves as the mounting foundation for other components. In the embodiment of the present application, the mounting base member 210 is in a plate shape, and a buffer soft pad is provided at the bottom of the mounting base member 210.

[0043] The first positioning component is arranged on the mounting base member 210. The first positioning component is used to position the first lens barrel component 120 so that the first lens barrel component 120 can be positioned to the required position or state, and it can also prevent the first lens barrel component 120 from rotating during assembly.

[0044] In some embodiments, the retractable locking component is arranged on the mounting base member 210. The locking component includes a detection member 250 and a rotatable first gear 280. The first gear 280 can mesh with the locking gear 122 of the positioned first lens barrel component 120. During use, the extended locking component can drive the first gear 280 to move to mesh with the locking gear 122, and drive the locking gear 122 to rotate through the first gear 280, so that the second connecting portion 121 of the second lens barrel component 110 is connected in place with the locking gear 122. The detection member 250 is used to detect whether the detection end 112 of the second lens barrel component 110 is in place. If the detection end 112 of the second lens barrel component 110 is detected by the detection member 250, the first gear 280 stops rotating. At this time, the distance between the second lens barrel component 110 and the housing of the first lens barrel component 120 is the required standard distance.

[0045] The limiting member 290 is arranged at the connection between the pre-assembled first lens barrel component 120 and the second lens barrel component 110. The limiting member 290 is used to limit the rotation of the second lens barrel component 110 so that the second lens barrel component 110 does not rotate along with the locking gear 122 during the rotation of the locking gear 122 driven by the first gear 280.

[0046] The usage process of the above-mentioned assembly fixture for the lens barrel is as follows: First, manually connect the lens barrel component two 110 and the lens barrel component one 120, and adjust the first reference part 111 of the lens barrel component two 110 to be on the same side as the second reference part 124 of the lens barrel component one 120. After completion, place the lens barrel component one 120 pre-installed with the lens barrel component two 110 on the first positioning component for positioning and limitation, and place the second reference part 124 of the lens barrel component one 120 back-to-back with the locking component. Then, place the limiting member 290 at the connection of the pre-installed lens barrel component one 120 and the lens barrel component two 110 to limit the rotation of the lens barrel component two 110 relative to the lens barrel component one 120. Drive the locking component to extend, so that the first gear 280 moves to mesh with the part of the locking gear 122 exposed outside the housing of the lens barrel component one 120, and drive the rotation of the locking gear 122 by rotating the first gear 280, thereby connecting and locking the lens barrel component one 120 and the lens barrel component two 110. When the detection end 112 of the lens barrel component two 110 is detected by the detection member 250, the first gear 280 stops rotating, and at the same time, the locking component retracts to its original position.

[0047] The assembly fixture for the lens barrel of the present application can quickly position the lens barrel. First, manually pre-install the lens barrel components, and then drive the locking gear 122 through the locking component to replace manual thread pre-tightening, effectively improving production efficiency and the quality of locking, and ensuring that the two lens barrel components can be locked to the required spacing.

[0048] In some embodiments, such as Figure 5 shown, the locking component further includes a mounting base 220 and a first driving member 260. The mounting base 220 is slidably arranged on the mounting base member 210 through a guide rail slider structure. The first gear 280 is rotatably arranged on the mounting base 220. The first driving member 260 is arranged on the mounting base 220, and the first driving member 260 drives the first gear 280 to rotate through a transmission structure.

[0049] Among them, the guide rail slider structure includes a slide rail and a slider. The sliding fit between the slide rail and the slider enables the mounting base 220 to approach the first positioning component, so that the first gear 280 rotatably arranged on the mounting base 220 can move to mesh with the locking gear 122 of the positioned lens barrel component one 120, and then drive the first gear 280 to rotate through the first driving member 260, thereby realizing the assembly operation of the lens barrel components, effectively reducing the labor intensity of workers and improving the assembly efficiency of the lens barrel.

[0050] In some specific embodiments, the first driving member 260 is a motor, and the transmission structure includes a second gear 261. The second gear 261 is fixed to the output shaft of the motor, and the second gear 261 meshes with the first gear 280.

[0051] The second gear 261 is directly fixed to the output shaft of the motor to reduce the error caused by multi-stage transmission. Among them, the transmission ratio of the first gear 280 to the second gear 261 is 1:2, and the motor can be a stepper motor or a servo motor.

[0052] In some specific embodiments, the mounting seat 220 includes a first connecting block, a second connecting block, and a third connecting block. The first connecting block and the second connecting block are oppositely arranged and are respectively located on both sides of the third connecting block. The motor is fixed to the first connecting block, the first gear 280 is fixed to the second connecting block, the output shaft of the motor enters between the first connecting block and the second connecting block, and both the first gear 280 and the second gear 261 are located between the first connecting block and the second connecting block, making the structure more compact.

[0053] In the embodiment of the present application, the mounting seat 220 is U-shaped.

[0054] In some embodiments, the assembling jig for the lens barrel further includes a second positioning component. The second positioning component is arranged on the locking component. During the process that the first gear 280 moves to engage with the locking gear 122 of the lens barrel component one 120, the second positioning component can position the lens barrel component two 110. If the lens barrel component is prevented from tilting or being slightly off-position, during the process that the first gear 280 moves to engage with the locking gear 122 of the lens barrel component one 120, the second positioning component can push against the lens barrel component to correct its position, so that the locking gear 122 can accurately engage with the first gear 280.

[0055] In some embodiments, the second positioning component includes two relatively arranged first positioning members 230. There is a gap between the two first positioning members 230, and guiding inclined surfaces are arranged on the opposite sides of the two first positioning members 230.

[0056] In some specific embodiments, the two first positioning members 230 are respectively fixed to both sides of the mounting seat 220. The gap between the two first positioning members 230 is smaller than the maximum diameter of the lens barrel component two 110, so as to be able to form a clamping groove to clamp the lens barrel component two 110, and the setting of the guiding inclined surface can effectively guide the lens barrel component two 110 into the clamping groove to ensure the smoothness of the correction process.

[0057] In some embodiments, the assembling jig for the lens barrel further includes a second driving member 270. Under the action of the second driving member 270, the locking component can move towards the positioning component. The second driving member 270 is used to drive the locking component to perform a telescopic action. When the assembling operation is not carried out, the retracted locking component does not affect the positioning and material taking of the lens barrel.

[0058] In the embodiment of the present application, the second driving member 270 is a cylinder or an electric push rod.

[0059] In some embodiments, the first positioning component includes at least two second positioning members 211. After the two second positioning members 211 are fixed to the mounting base member 210, a positioning groove is formed for limiting the rotation of the first lens barrel component 120. The positioning groove can prevent the first lens barrel component 120 from moving in the horizontal direction and can also prevent the first lens barrel component 120 from rotating.

[0060] In the embodiments shown in the present application, a total of four second positioning members 211 are provided so as to better position and limit the first lens barrel component 120.

[0061] In some embodiments, the detection member 250 is a limit switch. During the process that the first gear 280 moves to engage with the locking gear 122 of the first lens barrel component 120, the end of the trigger rod of the limit switch moves below the detection end 112 of the second lens barrel component 110, and the detection end 112 of the second lens barrel component 110 is sensed through the trigger rod, making the sensing more accurate.

[0062] In some embodiments, the locking assembly further includes a connecting member 240 for fixing the detection member 250, so that the detection member 250 can be disposed on the side of the positioned second lens barrel component 110, and during the process that the first gear 280 moves to engage with the locking gear 122 of the first lens barrel component 120, the connecting member 240 and the detection member 250 will not interfere with or impact the lens barrel during the movement process.

[0063] In some other embodiments, the detection member 250 can also be a photoelectric sensor.

[0064] The embodiments of the present application further provide an assembling method, based on the above-mentioned assembling jig for the lens barrel, including the following steps:

[0065] Insert the first connection portion 113 of the second lens barrel component 110 into the second connection portion 121 of the first lens barrel component 120, and pre-tighten the external thread of the first connection portion 113 and the internal thread of the locking gear 122. Among them, the first reference portion 111 of the second lens barrel component 110 should be adjusted to be on the same side as the second reference portion 124 of the first lens barrel component 120;

[0066] Place the first lens barrel component 120 pre-mounted with the second lens barrel component 110 on the first positioning component, and place the second reference portion 124 of the first lens barrel component 120 facing away from the locking component;

[0067] Place the limiting member 290 at the connection between the pre-assembled first lens barrel component 120 and the second lens barrel component 110 to limit the rotation of the second lens barrel component 110 relative to the first lens barrel component 120;

[0068] Drive the locking component to extend, so that the first gear 280 moves to mesh with the part of the locking gear 122 exposed outside the housing of the first lens barrel component 120;

[0069] Rotate the first gear 280 to drive the external thread of the first connecting part 113 to lock with the internal thread of the locking gear 122. When the detection end 112 of the second lens barrel component 110 is detected by the detection component 250, the first gear 280 stops rotating, and at the same time, the locking component retracts to its original position.

[0070] The above assembly method and assembly jig can effectively improve the assembly efficiency and assembly quality of the lens barrel.

[0071] The above has described the embodiments of the present application in detail with reference to the drawings. However, the present application is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art in the said technical field, various changes can also be made without departing from the purpose of the present application.

Claims

1. A assembling fixture for a lens barrel, characterized in that: Comprising An installation base member; A first positioning component, disposed on the installation base member, the first positioning component being used for positioning a first lens barrel component; A telescopable locking component, disposed on the installation base member, the locking component including a detection member and a rotatable first gear, the first gear being capable of meshing with a locking gear of the positioned first lens barrel component, the detection member being used for detecting whether a detection end of a second lens barrel component is in place; A limiting member, disposed at a connection portion between the pre-installed first lens barrel component and the second lens barrel component, the limiting member being used for restricting the rotation of the second lens barrel component.

2. The assembling jig for the lens barrel according to claim 1, wherein: The locking component further includes a mounting seat and a first driving member, the mounting seat is slidably disposed on the installation base member through a guide rail and slider structure, the first gear is rotatably disposed on the mounting seat, the first driving member is disposed on the mounting seat, and the first driving member drives the first gear to rotate through a transmission structure.

3. The assembling jig for a lens barrel according to claim 2, wherein: The first driving member is a motor, and the transmission structure includes a second gear, the second gear is fixed to an output shaft of the motor, and the second gear meshes with the first gear.

4. The assembling jig for the lens barrel according to claim 1, characterized in that: The assembling fixture for the lens barrel further includes a second positioning component, the second positioning component is disposed on the locking component, and during the process that the first gear moves to mesh with the locking gear of the first lens barrel component, the second positioning component can position the second lens barrel component.

5. The assembling jig for the lens barrel according to claim 4, characterized in that: The second positioning component includes two relatively disposed first positioning members, there is a gap between the two first positioning members, and guiding inclined surfaces are disposed on one sides of the two first positioning members facing each other.

6. The assembling jig for a lens barrel according to claim 1, characterized in that: The assembling fixture for the lens barrel further includes a second driving member, and under the action of the second driving member, the locking component can move towards the positioning component.

7. The assembling jig for a lens barrel according to claim 6, wherein: The second driving member is a cylinder or an electric push rod, and the locking component is slidably disposed on the installation base member through a guide rail and slider structure.

8. The assembling jig for a lens barrel according to claim 1, characterized in that: The first positioning component includes at least two second positioning members, and after the two second positioning members are fixed to the installation base member, a positioning groove for limiting the rotation of the first lens barrel component is formed.

9. The assembling jig for the lens barrel according to claim 1, wherein: The detection member is a limit switch, and during the process that the first gear moves to mesh with the locking gear of the first lens barrel component, an end portion of a trigger rod of the limit switch moves below the detection end of the second lens barrel component.

10. A assembling method, based on the assembling jig for the lens barrel according to any one of claims 1 to 9, characterized in that Including the following steps: Insert a first connection portion of the second lens barrel component into a second connection portion of the first lens barrel component, and pre-tighten an external thread of the first connection portion and an internal thread of the locking gear, wherein a first reference portion of the second lens barrel component should be adjusted to be on the same side as a second reference portion of the first lens barrel component; Place the first lens barrel component pre-installed with the second lens barrel component on the first positioning component, and place the second reference portion of the first lens barrel component and the locking component in a back-to-back manner; Place the limiting member at a connection portion between the pre-installed first lens barrel component and the second lens barrel component to restrict the rotation of the second lens barrel component relative to the first lens barrel component; Drive the locking component to extend, so that the first gear moves to mesh with a portion of the locking gear exposed outside the housing of the first lens barrel component; Rotate the first gear to drive the external thread of the first connecting part to lock with the internal thread of the locking gear. When the detection end of the lens barrel component two is detected by the detection component, the first gear stops rotating, and at the same time, the locking component retracts to its original position.

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