Auxiliary positioning tool for lens cone machining

Abstract

The utility model relates to the technical field of lens cone machining, and particularly discloses an auxiliary positioning tool for lens cone machining. Comprising a base and a first bearing seat. A mounting surface is arranged on the base, the first bearing seat is fixed on the mounting surface, and a through square hole is formed in the first bearing seat. The two sides of the bottom of the square hole are provided with a first bearing block and a second bearing block which are inclined, and the lens cone is installed through the first bearing block and the second bearing block. The top of the square hole is provided with a first clamping mechanism which can adjust clamping or loosening of the lens cone. The device ensures that the lens cone is stable during machining, deviation or shaking is prevented, and the machining precision is improved. The first clamping mechanism is flexible to operate, the machining efficiency is improved, and the labor intensity is relieved. The whole tool is reasonable in structure, easy to mount and dismount, high in stability, high in bearing capacity and suitable for machining of various steps. The tool provides a new solution for lens cone machining, the precision and efficiency are improved, the machining and operating environment is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lens barrel processing, in particular to a lens barrel processing auxiliary positioning tool. Background Art

[0002] An auxiliary positioning tool used in the processing of the lens barrel. This tooling design is intended to improve processing accuracy and ensure the position accuracy and consistency of the lens barrel components during the manufacturing process. The auxiliary positioning tooling is usually composed of a series of refined components that can adapt to the external structure of the lens barrel, thereby providing a stable positioning reference for the lens barrel in multiple dimensions. The design of this tooling needs to consider all stages of the lens barrel processing, from preliminary assembly to subsequent processes such as fine grinding and polishing. By using this auxiliary positioning tooling, the position of the lens barrel can be effectively controlled during the processing process to avoid processing errors caused by factors such as human operation or machine vibration. In addition, the tooling can also adapt to lens barrels of different sizes and shapes, so that the same positioning system can be used on a variety of products, improving processing efficiency and production flexibility.

[0003] In the patent "Tooling for carrying and processing lens barrels" (publication number CN211708707U, hereinafter referred to as prior art 1), a fixed tooling for processing lens barrels is disclosed. In prior art 1, a bearing platform, a positioning component and a fastening component are provided. The positioning component corresponds to the fastening component one by one, and is used to position and fasten the lens barrel. Prior art 1 positions and fastens multiple lens barrels by cooperating with multiple groups of positioning components and fastening components. The fastening base can be welded or screwed to the bearing platform. The fastening clamp includes a matching rod and a fastening block, and the lower part of the matching rod is threadedly connected to the fastening base and can be replaced. The fastening block is adapted to the inner cavity of the lens barrel, and is pressed against the inner wall through a rubber ring to limit shaking.

[0004] The fastening block in the prior art 1 is set in a manner adapted to the lens barrel, and the movement of the lens barrel can only be restricted by the fastening block against the lens barrel. The fastening block in the prior art 1 that is adapted to be set is not conducive to the processing of lens barrels of various sizes. It is also not suitable for the processing of lens barrel blanks, and can only be used to process lens barrels that have been preliminarily completed. Different fixtures must be replaced in the processing of each link of the lens barrel, which is disadvantageous for the processing accuracy. Utility Model Content

[0005] In view of this, an embodiment of the utility model provides a lens barrel processing auxiliary positioning tool to solve the problem in the prior art that different clamps need to be replaced for processing each link of the lens barrel.

[0006] An embodiment of the utility model provides an auxiliary positioning tooling for lens barrel processing, which includes a base and a first receiving seat; the surface of the base is an installation surface; the first receiving seat is fixed on the installation surface of the base; the first receiving seat is a rectangular block with a certain thickness; a through square hole is provided inside the first receiving seat; a first receiving block and a second receiving block are respectively provided on both sides of the inner bottom of the square hole; the first receiving block and the second receiving block are inclined at a preset angle; the tops of the first receiving block and the second receiving block are a first receiving surface and a second receiving surface respectively; the lens barrel is installed through the first receiving surface and the second receiving surface; a first clamping mechanism is provided on the top of the first receiving seat; the first clamping mechanism is arranged on the top of the first receiving seat; the first clamping mechanism clamps or unloads the lens barrel by moving in a direction close to or away from the first receiving block and the second receiving block.

[0007] Preferably, the first clamping mechanism includes a first clamping block and a pressing bolt; one end of the first clamping block and the pressing bolt is hinged; a clamping groove is provided on the first clamping block, and the bottom surface of the clamping groove is an arc surface or a plane.

[0008] Preferably, a threaded hole adapted to the pressing bolt is provided on the top of the first receiving seat; the pressing bolt is arranged in the threaded hole.

[0009] Preferably, the pressing bolt rotates based on the threaded hole, driving the first pressing block to move in a direction close to or away from the installation direction of the lens barrel, clamping or unloading the lens barrel.

[0010] Preferably, the first clamping mechanism includes a cylinder and a first clamping block; the first clamping block is fixedly connected to the piston rod of the cylinder; a clamping groove is provided on the first clamping block, and the clamping groove is an arc surface or a plane.

[0011] Preferably, a telescopic hole adapted to the piston rod is provided on the top of the first receiving seat; the piston rod extends into the first receiving seat through the telescopic hole.

[0012] Preferably, the cylinder is fixed on the top of the first receiving seat; the cylinder drives the piston rod to drive the first clamping block to move in a direction close to or away from the position where the lens barrel is installed, clamping or unloading the lens barrel.

[0013] Preferably, it further includes a second receiving seat; the second receiving seat is fixed on the base and is arranged in parallel with the first receiving seat; a second clamping mechanism is provided on the second receiving seat; the settings of the first receiving seat and the second receiving seat are the same.

[0014] Preferably, it further includes a limiting plate, and the limiting plate is arranged on the mounting surface at one end of the base; the limiting plate is arranged in parallel with the first receiving seat and the second receiving seat.

[0015] Preferably, a receiving groove is provided on the limiting plate; the receiving groove is arc-shaped; the surface of the receiving groove is the third receiving surface.

[0016] The mirror barrel processing auxiliary positioning tooling provided by the utility model has the following beneficial effects:

[0017] Through the first receiving block and the second receiving block which are arranged with an angular inclination, the utility model can ensure that the mirror barrel maintains a stable position during the processing, effectively preventing the mirror barrel from shifting or shaking during the processing, thereby ensuring the processing accuracy. It can also be adapted to process mirror barrels of various sizes. The first clamping mechanism can move in a direction close to or away from the first receiving block and the second receiving block according to the processing needs to precisely clamp or unload the mirror barrel. This flexible operation mode not only improves the clamping efficiency but also reduces the labor intensity of the operator. The structure of the entire tooling is easy to install and disassemble. In practical applications, this one tooling can be used in each link, which can ensure the accuracy of multiple processing links and has extremely high convenience. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings, and all of these are within the protection scope of the present utility model.

[0019] Figure 1 It is an assembly structure schematic diagram of a mirror barrel processing auxiliary positioning tooling;

[0020] Figure 2 It is a structure schematic diagram of a mirror barrel processing auxiliary positioning tooling;

[0021] Figure 3 It is a schematic diagram in Embodiment 1;

[0022] Figure 4 It is a schematic diagram in Embodiment 2;

[0023] Parts and numbers in the figure:

[0024] 100 - base, 110 - mounting surface, 120 - guide rail, 130 - slider;

[0025] 200 - First receiving seat, 210 - Square hole, 220 - First receiving block, 221 - First receiving surface, 230 - Second receiving block, 231 - Second receiving surface, 240 - Threaded hole, 250 - Telescopic hole;

[0026] 300 - Second receiving seat, 320 - Third receiving block, 321 - Fourth receiving surface, 330 - Fourth receiving block, 331 - Fifth receiving surface;

[0027] 400 - Lens barrel blank;

[0028] 510 - First clamping block, 511 - Compression bolt, 521 - Cylinder, 522 - Piston rod, 530 - Clamping groove;

[0029] 600 - Limit plate, 610 - Receiving groove, 620 - Third receiving surface. Detailed implementation mode

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. Moreover, the terms "include", "comprise", or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article, or device. Without further limitation, the elements defined by the statement "including..." do not exclude the existence of additional identical elements in the process, method, article, or device including the said elements. If there is no conflict, the embodiments of the present utility model and the various features in the embodiments can be combined with each other, and all are within the protection scope of the present utility model.

[0031] Embodiment 1

[0032] Please refer to Figure 1, an embodiment of the present utility model provides an auxiliary positioning tooling for lens barrel processing, including a base 100 and a first receiving seat 200; the surface of the base 100 is an installation surface 110. This tooling is mainly used for clamping a lens barrel or a lens barrel blank 400 to be processed, and assisting in processing after clamping to ensure the processing accuracy. Among them, the function of the base 100 is to provide a plane as the installation surface 110 to facilitate the installation of each component. The bottom surface of the base 100 is the contact surface for installation with the processing platform. By fixing the base 100 on the processing platform, the lens barrel is processed, ensuring the position accuracy and processing accuracy of the lens barrel.

[0033] The first receiving seat 200 is fixed on the installation surface 110 of the base 100; the first receiving seat 200 is a rectangular block with a certain thickness. The first receiving seat 200 is the component for receiving the lens barrel or the lens barrel blank 400. The first receiving seat 200 has a certain thickness, which can support the lens barrel or the lens barrel blank 400, increasing the contact area between the lens barrel or the lens barrel blank 400 and the first receiving seat 200.

[0034] Please refer to Figure 2 , a through square hole 210 is provided inside the first receiving seat 200, and the square hole 210 is used for installing the following first clamping mechanism and receiving block. The bottom of the square hole 210 is inclined. On both sides of the inner bottom of the square hole 210, a first receiving block 220 and a second receiving block 230 are respectively provided. The first receiving block 220 and the second receiving block 230 are arranged on the inclined surface at the bottom of the square hole 210, so that the first receiving block 220 and the second receiving block 230 are inclined at a preset angle. The tops of the first receiving block 220 and the second receiving block 230 are respectively a first receiving surface 221 and a second receiving surface 231. The lens barrel or the lens barrel blank 400 is installed through the first receiving surface 221 and the second receiving surface 231. When installing the lens barrel or the lens barrel blank 400, the outer surface of the lens barrel or the lens barrel blank 400 is contacted with the first receiving surface 221 and the second receiving surface 231 to complete positioning.

[0035] Furthermore, the first receiving surface 221 and the second receiving surface 231 can be set as arc surfaces, so that the contact area with the lens barrel or the lens barrel blank 400 is larger, and positioning and clamping are more convenient.

[0036] Furthermore, according to actual requirements, the diameter of the lens barrel or lens barrel blank 400 may vary significantly. When the diameter of the lens barrel or lens barrel blank 400 is relatively large or small, it may exceed the range restricted by the first receiving block 220 and the second receiving block 230. Therefore, the overall length of the first receiving block 220 and the second receiving block 230 is set to be relatively long so that it can cover all positions within the first receiving seat 200. As long as the diameter of the lens barrel or lens barrel blank 400 is smaller than the cross-sectional length of the square hole 210, its position can be restricted and positioned.

[0037] Please refer to Figure 1 , a first clamping mechanism is provided at the top of the first receiving seat 200; the first clamping mechanism is provided at the top of the first receiving seat 200; the first clamping mechanism clamps or releases the lens barrel by moving in a direction close to or away from the first receiving block 220 and the second receiving block 230.

[0038] The first receiving seat 200 is provided with a first clamping mechanism at the top, and the main function of this mechanism is to fix the position of the lens barrel or lens barrel blank 400. When it is necessary to fix the lens barrel or lens barrel blank 400, the first clamping mechanism can approach the lens barrel and apply pressure to the lens barrel through the components inside it, so that it fits tightly with the first receiving seat 200, thereby achieving the clamping effect. When it is necessary to adjust the lens barrel or lens barrel blank 400, the components inside the first clamping mechanism can move away from the lens barrel, so that the fixation of the lens barrel can be released, and it can be freely moved and adjusted. The first clamping mechanism can switch between the clamping and releasing states through the simple movement of the internal components, greatly improving the convenience and flexibility of use. At the same time, the first clamping mechanism is located at the top of the first receiving seat 200. Such a setting can not only save space but also make the overall structure more compact.

[0039] Please refer to Figure 3 , furthermore, the first clamping mechanism includes a first clamping block 510 and a pressing bolt 511; one end of the first clamping block 510 and the pressing bolt 511 is hinged; a clamping groove 530 is provided on the first clamping block 510, and the bottom surface of the clamping groove 530 is an arc surface or a plane.

[0040] Please refer to Figure 3, the first clamping mechanism is composed of two main parts, namely the first clamping block 510 and the pressing bolt 511. These two parts are connected together by a hinge, enabling them to rotate relative to each other, so that the pressing bolt 511 can push the first clamping block 510 to perform the clamping operation. In the setting of the first clamping block 510, considering the actual operation needs, a special clamping groove 530 is provided on it. The design of this clamping groove 530 can be an arc shape or a flat shape, and both of these designs can meet different clamping requirements. Such a design makes the first clamping mechanism have greater flexibility and adaptability in practical applications and can better meet the requirements of various clamping operations.

[0041] A threaded hole 240 adapted to the pressing bolt 511 is provided at the top of the first receiving seat 200; the pressing bolt 511 is arranged in the threaded hole 240.

[0042] The first receiving seat 200 is provided with a threaded hole 240 at its top that matches the pressing bolt 511. The pressing bolt 511 is placed inside this threaded hole 240, and this threaded hole 240 can be closely combined with the pressing bolt 511; it achieves the pressing effect on the first pressing block through precise cooperation with the threaded hole 240 to ensure the stability and safety of the entire structure.

[0043] The pressing bolt 511 rotates based on the threaded hole 240, driving the first pressing block to move towards or away from the direction of the lens barrel installation, clamping or loosening the lens barrel. The pressing bolt 511 rotates on the threaded hole 240 to control the first pressing block, enabling it to move along a direction adjacent to or away from the lens barrel installation direction. Through such an operation, the lens barrel can be effectively fixed or released.

[0044] It further includes a second receiving seat 300; the second receiving seat 300 is fixed to the base 100 and is arranged in parallel with the first receiving seat 200; a second clamping mechanism is provided on the second receiving seat 300; the settings of the first receiving seat 200 and the second receiving seat 300 are the same.

[0045] Furthermore, the fixing method between the second receiving seat 300 and the base 100 can adopt threaded connection, welding or bonding, etc., to ensure the stability and reliability between them. The same settings of the first receiving seat 200 and the second receiving seat 300 can ensure the stability and precision of the workpiece during processing.

[0046] In some application scenarios, the first receiving seat 200 and the second receiving seat 300 can be used to carry and fix workpieces for further processing operations. By providing the second receiving seat 300 on the base 100 and equipping it with a second clamping mechanism, the contact area between the clamping and positioning part and the lens barrel or lens barrel blank 400 is increased, enabling more stable fixation and precise processing of the workpiece.

[0047] It further includes a limit plate 600, which is provided on the mounting surface 110 at one end of the base 100; the limit plate 600 is arranged parallel to the first receiving seat 200 and the second receiving seat 300. The limit plate 600 is provided with a receiving groove 610; the receiving groove 610 is arc-shaped; the surface of the receiving groove 610 is the third receiving surface 620.

[0048] Furthermore, in order to lock all the degrees of freedom of the lens barrel or lens barrel blank 400, a limit plate 600 is provided to prevent the lens barrel or lens barrel blank 400 from being displaced due to the extrusion of the processing parts during axial processing, and the position is limited by the limit plate 600. The receiving groove 610 on the limit plate 600 can make the lens barrel or lens barrel blank 400 be more stably arranged on the said limit plate 600.

[0049] In the actual production process, this kind of tooling setup brings great flexibility because it allows easy transfer and reuse between different stages and different processes. This flexibility not only greatly improves work efficiency but also ensures that in the entire processing process, from the initial design verification to the final product assembly, each link can maintain the high-precision requirements of the product. In addition, due to its convenient operation and maintenance characteristics, the staff can focus more on the production process, reducing time waste and potential errors, thereby improving the overall work quality and production efficiency, and ensuring the consistency and reliability of the processing accuracy.

[0050] Embodiment 2

[0051] Please refer to Figure 1 , in the lens barrel processing auxiliary positioning tooling provided by the embodiment of the present utility model, the first clamping block 510 in the first embodiment needs to manually or use equipment to tighten the pressing bolt 511, which is inconvenient to use. And after the pressing bolt 511 has been used for a long time and has a large amount of wear, it can no longer be clamped.

[0052] Please refer to Figure 4, different from the first embodiment, the first clamping mechanism includes a cylinder 521 and a first clamping block 510; the first clamping block 510 is fixedly connected to the piston rod 522 of the cylinder 521; a clamping groove 530 is provided on the first clamping block 510, and the clamping groove 530 is an arc surface or a flat surface, preferably an arc surface, which is more suitable for a workpiece with a circular cross-section.

[0053] A telescopic hole 250 adapted to the piston rod 522 is provided at the top of the first receiving seat 200; the piston rod 522 extends into the first receiving seat 200 through the telescopic hole 250.

[0054] The first receiving seat 200 is provided with a telescopic hole 250 at the top that matches the piston rod 522. The setting of this telescopic hole 250 enables the piston rod 522 to smoothly pass through this hole and extend into the structure of the first receiving seat 200. In this way, the cylinder 521 can be supported by the top of the first receiving seat 200, and the clamping operation can also be completed.

[0055] Please refer to Figure 4 , the cylinder 521 is fixed to the top of the first receiving seat 200; the cylinder 521 drives the piston rod 522 to drive the first clamping block 510 to move towards or away from the position where the lens barrel is installed, clamping or releasing the lens barrel. The cylinder 521 is firmly installed at the top of the first receiving seat 200. Through the action of the cylinder 521, the piston rod 522 is driven, and then the first clamping block 510 is driven to move near or away from the lens barrel installation position. During this process, the lens barrel will be clamped or loosened for the next operation or maintenance.

[0056] It further includes a second receiving seat 300; the second receiving seat 300 is fixed to the base 100 and is arranged in parallel with the first receiving seat 200; a second clamping mechanism is provided on the second receiving seat 300; the settings of the first receiving seat 200 and the second receiving seat 300 are the same.

[0057] It further includes a limiting plate 600, the limiting plate 600 is arranged on the installation surface 110 at one end of the base 100; the limiting plate 600 is arranged in parallel with the first receiving seat 200 and the second receiving seat 300. A receiving groove 610 is provided on the limiting plate 600; the receiving groove 610 is arc-shaped; the surface of the receiving groove 610 is the third receiving surface 620.

[0058] Please refer to Figure 1, the settings of the first receiving seat 200 and the second receiving seat 300 are the same, and they have the same structure and function. In addition, the device further includes a limiting plate 600, which is arranged on the mounting surface 110 at one end of the base 100 and is arranged parallel to the first receiving seat 200 and the second receiving seat 300. The function of the limiting plate 600 is to limit the position of the articles to ensure that they are in the correct positions. On the limiting plate 600, there is a receiving groove 610, which is arranged in an arc shape, so as to better adapt to the lens barrel or the lens barrel blank 400. The surface of the receiving groove 610 is called the third receiving surface 620, which is used to receive one end of the lens barrel or the lens barrel blank 400.

[0059] Through the cooperation of the first receiving seat 200, the second receiving seat 300 and the limiting plate 600, this device can effectively fix and receive the lens barrel or the lens barrel blank 400 to ensure that they are in the correct positions. This design improves the flexibility and applicability of the device.

[0060] A third receiving block 320 and a fourth receiving block 330 are arranged inside the second receiving seat 300; the top surfaces of the third receiving block 320 and the fourth receiving block 330 are the fourth receiving surface 321 and the fifth receiving surface 331; the fourth receiving surface 321 and the fifth receiving surface 331 are the receiving surfaces for the lens barrel or the lens barrel blank 400.

[0061] Embodiment 3

[0062] Please refer to Figure 3 and Figure 4 , the embodiment of the present utility model provides an auxiliary positioning tooling for lens barrel processing. In the first embodiment and the second embodiment, the first clamping block 510 is basically movable and is only restricted by the piston rod 522 or the pressing bolt 511. This may cause the problem of reduced clamping degree.

[0063] Based on the first clamping mechanism, a guide rail 120 and a slider 130 are arranged. By setting the moving paths of the guide rail 120 and the slider 130, the moving path of the first clamping block 510 is fixed to make its clamping effect better.

[0064] The guide rail 120 is arranged on the side walls on both sides of the inner square hole 210 of the first clamping seat; the slider 130 is arranged on the side walls on both sides of the first clamping block 510; the slider 130 is slidably matched with the guide rail 120, so that the first clamping seat slides based on the guide rail 120, so that the first clamping seat has only one degree of freedom, increasing its clamping degree while improving its clamping accuracy.

[0065] The distances between the first receiving seat 200, the second receiving seat 300 and the limiting plate 600 are adaptively set according to the length of the lens barrel or the lens barrel blank 400. The number of the receiving seats can also be adjusted.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An auxiliary positioning tooling for lens barrel processing, characterized in that It includes a base (100) and a first receiving seat (200); the surface of the base (100) is an installation surface (110); the first receiving seat (200) is fixed on the installation surface (110) of the base (100); the first receiving seat (200) is a rectangular block with a certain thickness; A through square hole (210) is provided inside the first receiving seat (200); on both sides of the inner bottom of the square hole (210), a first receiving block (220) and a second receiving block (230) are respectively provided; the first receiving block (220) and the second receiving block (230) are inclined at a preset angle; the tops of the first receiving block (220) and the second receiving block (230) are a first receiving surface (221) and a second receiving surface (231) respectively; the lens barrel is installed through the first receiving surface (221) and the second receiving surface (231); A first clamping mechanism is provided at the top of the first receiving seat (200); the first clamping mechanism is arranged at the top of the first receiving seat (200); the first clamping mechanism clamps or unloads the lens barrel by moving in a direction close to or away from the first receiving block (220) and the second receiving block (230).

2. The auxiliary positioning tooling for lens barrel machining according to claim 1, characterized in that The first clamping mechanism includes a first clamping block (510) and a pressing bolt (511); one end of the first clamping block (510) and the pressing bolt (511) is hinged; a clamping groove (530) is provided on the first clamping block (510), and the clamping groove (530) is an arc surface or a plane.

3. The auxiliary positioning tooling for lens barrel processing according to claim 2, wherein, A threaded hole (240) adapted to the pressing bolt (511) is provided at the top of the first receiving seat (200); the pressing bolt (511) is arranged in the threaded hole (240).

4. An auxiliary positioning tooling for lens barrel processing according to any one of claims 1-3, characterized in that, The pressing bolt (511) rotates based on the threaded hole (240), driving the first pressing block to move in a direction close to or away from the installation direction of the lens barrel, clamping or unloading the lens barrel.

5. The auxiliary positioning tooling for lens barrel machining according to claim 1, wherein The first clamping mechanism includes a cylinder (521) and a first clamping block (510); the first clamping block (510) is fixedly connected to the piston rod (522) of the cylinder (521); a clamping groove (530) is provided on the first clamping block (510), and the bottom surface of the clamping groove (530) is an arc surface or a plane.

6. The auxiliary positioning tooling for lens barrel machining according to claim 5, characterized in that, A telescopic hole (250) adapted to the piston rod (522) is provided at the top of the first receiving seat (200); the piston rod (522) extends into the first receiving seat (200) through the telescopic hole (250).

7. An auxiliary positioning tooling for lens barrel processing according to any one of claims 5 and 6, characterized in that, The cylinder (521) is fixed to the top of the first receiving seat (200); the cylinder (521) drives the piston rod (522) to drive the first clamping block (510) to move in a direction close to or away from the installation position of the lens barrel, clamping or unloading the lens barrel.

8. An auxiliary positioning tooling for lens barrel machining according to claim 1, characterized in that, It further includes a second receiving seat (300); the second receiving seat (300) is fixed on the base (100) and is arranged in parallel with the first receiving seat (200); a second clamping mechanism is provided on the second receiving seat (300); The first receiving seat (200) and the second receiving seat (300) are arranged in the same way.

9. An auxiliary positioning tooling for lens barrel processing according to claim 8, characterized in that, It further includes a limiting plate (600), and the limiting plate (600) is arranged on the mounting surface (110) at one end of the base (100); the limiting plate (600) is arranged in parallel with the first receiving seat (200) and the second receiving seat (300).

10. The auxiliary positioning tooling for lens barrel machining according to claim 9, characterized in that, A receiving groove (610) is provided on the limiting plate (600); the receiving groove (610) is arc-shaped; the surface of the receiving groove (610) is a third receiving surface (620).

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