Lens barrel processing tool

Abstract

The utility model discloses a lens barrel processing frock, including tailstock seat, first fine adjustment seat, second fine adjustment seat and locating seat, first fine adjustment seat is opened with center hole no.

Description

Technical Field

[0001] This utility model relates to the field of lens barrel processing technology, specifically to a lens barrel processing tooling. Background Technology

[0002] The lens barrel is a crucial precision component of a camera. During machining, it requires the use of tooling for positioning and processing, such as... Figure 1 and Figure 2 The lens barrel 700 shown has a connecting hole 701 on the outer edge of the left end face, an annular groove 702 on the outer edge of the right end face, and a circular through hole 703 at the center of the right end face. Most existing lens barrel machining fixtures are positioned by a positioning shaft and the limiting plates at both ends, but they have problems such as inconvenient fine adjustment of the shaft center, low machining efficiency and machining accuracy. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a lens barrel processing fixture that can finely adjust the axis of the lens barrel clamped on a CNC lathe, improve the processing accuracy, and has a simple structure. The lens barrel axis is easy to finely adjust, which improves the processing efficiency and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a lens barrel processing fixture, comprising a center seat, a first fine-tuning seat, a second fine-tuning seat, and a positioning seat, wherein the first fine-tuning seat, the second fine-tuning seat, and the positioning seat are arranged sequentially from left to right and are connected to each other in close contact. The first fine-tuning seat has a central hole at its axial center, and a fine-tuning mandrel of the same diameter is fitted inside the central hole. Two inclined T-shaped adjusting bolts are screwed onto the outer circumferential wall of the first fine-tuning seat, and the two T-shaped adjusting bolts are symmetrically arranged on the first fine-tuning seat, with the ends of the T-shaped adjusting bolts abutting against the outer circumferential wall of the fine-tuning mandrel. The second fine-tuning seat has a central blind hole at its left end face, which matches the diameter of the end of the fine-tuning mandrel, and the end of the fine-tuning mandrel is fixed. The first fine-tuning seat is fitted into a central blind hole; the second fine-tuning seat has a central blind hole at the center of its right end face, and a fine-tuning mandrel with a diameter matching the central blind hole is fitted into the central blind hole. Two inclined T-shaped adjusting bolts are screwed onto the outer circumference of the second fine-tuning seat. The two T-shaped adjusting bolts are symmetrically arranged on the second fine-tuning seat, and the T-shaped adjusting bolts are distributed intersectingly with the first T-shaped adjusting bolt. The ends of the T-shaped adjusting bolts abut against the outer circumference of the fine-tuning mandrel. The left end face of the positioning seat has a central hole that matches the diameter of the end of the fine-tuning mandrel, and the end of the fine-tuning mandrel is fixedly fitted into the central hole. The right end face of the positioning seat has a positioning pin for positioning the lens barrel. The center point seat is used to abut against the right end face of the lens barrel, and a center point hole is opened at the center of the right end face of the center point seat.

[0005] Furthermore, the right end face of the first fine-tuning seat is provided with multiple screw holes 1, and the right end face of the second fine-tuning seat is provided with a fixing hole 2 at the position corresponding to the screw hole 1. The fixing hole 2 is an elongated hole and is set along the inclined direction of the T-shaped adjusting bolt 1. The second fine-tuning seat is fixedly connected to the first fine-tuning seat through the fixing hole 2 and the screw holes 1 via the fixing bolt 2. The right end face of the second fine-tuning seat is provided with multiple screw holes 2, and the right end face of the positioning seat is provided with a fixing hole 3 at the position corresponding to the screw hole 2. The fixing hole 3 is an elongated hole and is set along the inclined direction of the T-shaped adjusting bolt 2. The positioning seat is fixedly connected to the second fine-tuning seat through the fixing hole 3 and the screw holes 2 via the fixing bolt 3.

[0006] Furthermore, the left end face of the second fine-tuning seat is provided with a guide convex shaft at the position corresponding to the first T-shaped adjusting bolt, and the right end face of the first fine-tuning seat is provided with a guide groove at the position corresponding to the first guide convex shaft. The guide groove is a rectangular groove and is set along the inclined direction of the first T-shaped adjusting bolt. The right end face of the second fine-tuning seat is provided with a guide convex shaft at the position corresponding to the second T-shaped adjusting bolt, and the left end face of the positioning seat is provided with a guide groove at the position corresponding to the second guide convex shaft. The guide groove is a rectangular groove and is set along the inclined direction of the second T-shaped adjusting bolt.

[0007] Furthermore, the left end face of the top seat is provided with a cylindrical positioning protrusion, and a positioning convex shaft is provided at the center of the left end of the positioning protrusion.

[0008] Furthermore, a plurality of fixing holes are provided on the right end of the first fine-tuning seat, and each fixing hole is provided with a fixing bolt for connecting the CNC lathe drive component.

[0009] Furthermore, a thinning groove is provided on the right end face of the second fine-tuning seat at the position corresponding to the second fixing hole.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This lens barrel processing fixture positions the lens barrel by the positioning pin on the positioning seat, and the axis of the lens barrel can be finely adjusted by turning the first T-shaped adjusting bolt and the second T-shaped adjusting bolt, so that the axis of the lens barrel is coaxial with the axis of the CNC lathe drive component, thereby improving the processing accuracy. Moreover, the structure is simple, the axis of the lens barrel is easy to finely adjust, and the processing efficiency is improved. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the existing lens barrel structure; Figure 2 For the existing telescope tube axonometric drawing; Figure 3 This is a schematic diagram of the structure of this utility model; Figure 4 This is an exploded view of the present invention; Figure 5 This is a schematic diagram of the first fine-tuning seat structure of this utility model; Figure 6 This is a schematic diagram of the left end face structure of the second fine-tuning seat of this utility model; Figure 7 This is a schematic diagram of the right end face structure of the second fine-tuning seat of this utility model; Figure 8 This is a schematic diagram of the positioning seat structure of this utility model; Figure 9 This is a left view of the positioning seat of this utility model; Figure 10 This is a front view of the positioning seat of this utility model; Figure 11 This is an isometric drawing of the center seat of this utility model; Figure 12 This is a cross-sectional view of the present invention in use.

[0012] In the diagram: 1. Center seat; 11. Center hole; 12. Positioning protrusion; 13. Positioning convex shaft; 2. First fine-tuning seat; 21. Center hole one; 22. Fixing hole one; 23. T-shaped adjusting bolt one; 24. Screw hole one; 25. Guide groove one; 26. Fixing bolt one; 3. Second fine-tuning seat; 31. Center blind hole one; 32. Fixing hole two; 33. Fixing bolt two; 34. T-shaped adjusting bolt two; 35. Screw hole one; 36. Hole 2; 37. Guide convex shaft 1; 38. Guide convex shaft 2; 39. Thinning groove; 4. Center blind hole 2; 4. Positioning seat; 41. Center hole 2; 42. Fixing hole 3; 43. Positioning pin; 44. Guide groove 2; 45. Fixing bolt 3; 5. Fine adjustment mandrel 1; 6. Fine adjustment mandrel 2; 700. Lens barrel; 701. Connecting hole; 702. Annular groove; 703. Circular through hole; 800. Center tailstock. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0014] Please see Figure 3-4 and Figure 12 This utility model provides a technical solution: a lens barrel processing fixture, including a top seat 1, a first fine-tuning seat 2, a second fine-tuning seat 3 and a positioning seat 4, wherein the first fine-tuning seat 2, the second fine-tuning seat 3 and the positioning seat 4 are arranged from left to right and are connected to each other in close contact. Please refer to the following: Figure 4-5The first fine-tuning seat 2 has a central hole 21 at its axial center. A fine-tuning mandrel 5 with a diameter adapted to the central hole 21 is fitted inside the central hole 21. Two inclined T-shaped adjusting bolts 23 are screwed onto the outer circumferential wall of the first fine-tuning seat 2. The two T-shaped adjusting bolts 23 are symmetrically arranged on the first fine-tuning seat 2. The ends of the T-shaped adjusting bolts 23 abut against the outer circumferential wall of the fine-tuning mandrel 5. Multiple screw holes 24 are opened on the right end face of the first fine-tuning seat 2. Multiple fixing holes 22 are also opened on the right end of the first fine-tuning seat 2. Fixing bolts 26 for connecting CNC lathe drive components are provided in each fixing hole 22. Please see Figure 4 and Figure 6-7 The second fine-tuning seat 3 has a central blind hole 31 at the center of its left end face, which matches the diameter of the end of the fine-tuning mandrel 5, and the end of the fine-tuning mandrel 5 is fixedly fitted inside the central blind hole 31. The second fine-tuning seat 3 has a central blind hole 39 at the center of its right end face, and a fine-tuning mandrel 6 with a diameter matching the diameter is fitted inside the central blind hole 39. Two inclined T-shaped adjusting bolts 34 are screwed onto the outer circumference of the second fine-tuning seat 3. The two T-shaped adjusting bolts 34 are symmetrically arranged on the second fine-tuning seat 3, and the T-shaped adjusting bolts 34 and T-shaped adjusting bolt 23 are distributed intersectingly. The end of the T-shaped adjusting bolt 34 abuts against the outer circumference of the fine-tuning spindle 6; a fixing hole 32 is provided on the right end face of the second fine-tuning seat 3 at the position corresponding to the screw hole 24. The fixing hole 32 is an elongated hole and is set along the inclined direction of the T-shaped adjusting bolt 23; the second fine-tuning seat 3 is fixedly connected to the first fine-tuning seat 2 through the fixing hole 32 and the screw hole 24 via the fixing bolt 33; a thinning groove 38 is provided on the right end face of the second fine-tuning seat 3 at the position corresponding to the fixing hole 32 to facilitate disassembly and tightening of the fixing bolt 33; multiple screw holes 35 are provided on the right end face of the second fine-tuning seat 3; The left end face of the second fine-tuning seat 3 is provided with a guide convex shaft 36 at the position corresponding to the T-shaped adjusting bolt 23. The right end face of the first fine-tuning seat 2 is provided with a guide groove 25 at the position corresponding to the guide convex shaft 36. The guide groove 25 is a rectangular groove and is set along the inclined direction of the T-shaped adjusting bolt 23. Please refer to the following: Figure 4 and Figure 8-10The positioning seat 4 has a central hole 41 on its left end face that matches the diameter of the end of the fine-tuning spindle 6, and the end of the fine-tuning spindle 6 is fixedly sleeved in the central hole 41. The positioning seat 4 has a positioning pin 43 on its right end face for positioning the lens barrel 700. The positioning seat 4 has a fixing hole 42 at the position corresponding to the screw hole 35 on its right end face. The fixing hole 42 is an oblong hole and is set along the inclined direction of the T-shaped adjusting bolt 34. The positioning seat 4 is fixedly connected to the second fine-tuning seat 3 through the fixing hole 42 and the screw hole 35 via the fixing bolt 45. The second fine-tuning seat 3 has a guide convex shaft 37 at the position corresponding to the T-shaped adjusting bolt 34 on its right end face. The positioning seat 4 has a guide groove 44 at the position corresponding to the guide convex shaft 37 on its left end face. The guide groove 44 is a rectangular groove and is set along the inclined direction of the T-shaped adjusting bolt 34. Please refer to the following: Figure 11 The top seat 1 is used to abut against the right end face of the lens barrel 700, and a top hole 11 is provided at the center of the right end face of the top seat 1. The left end face of the top seat 1 is provided with a cylindrical positioning protrusion 12, and a positioning protrusion shaft 13 is provided at the center of the left end of the positioning protrusion 12.

[0015] In use: The first fine-tuning seat 2 is fixed to the four-axis drive of the CNC lathe using fixing bolt 26, thus fixing the first fine-tuning seat 2, the second fine-tuning seat 3, and the positioning seat 4 to the drive of the CNC lathe. At this time, fixing bolts 33 and 45 are in a pre-tightened state. The connecting hole 701 on the lens barrel 700 is aligned with the positioning pin 43, and the lens barrel 700 is positioned using the positioning pin 43. The positions of the fine-tuning spindle 5, the second fine-tuning seat 3, and the positioning seat 4 can be adjusted along their set direction by turning the T-shaped adjusting bolt 23. Similarly, the positions of the T-shaped adjusting bolt 34 can be adjusted along their set direction. Adjust the positions of the fine-tuning spindle 2 6 and the positioning seat 4 to fine-tune the axis of the lens barrel 700, making the axis of the lens barrel 700 coaxial with the axis of the CNC lathe drive component. After adjustment, tighten the fixing bolts 2 33 and 3 45. Then, assemble the center seat 1 on the right end face of the lens barrel 700, and fit the positioning protrusion 12 into the annular groove 702 of the lens barrel 700, and fit the positioning convex shaft 13 into the circular through hole 703 of the lens barrel 700. Tighten the center hole 11 on the center seat 1 by the center tailstock 800 on the CNC machine tool, and then process the lens barrel 700 by the CNC lathe.

[0016] The lens barrel machining fixture disclosed in this embodiment positions the lens barrel 700 using the positioning pin 43 on the positioning seat 4. The axis of the lens barrel 700 can be finely adjusted by turning the T-type adjusting bolt 23 and the T-type adjusting bolt 34, so that the axis of the lens barrel 700 is coaxial with the axis of the CNC lathe drive component, thereby improving machining accuracy. Moreover, the structure is simple, the axis of the lens barrel 700 is easy to finely adjust, and the machining efficiency is improved.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tooling for machining a lens barrel, comprising a center base, a first fine-tuning base, a second fine-tuning base, and a positioning base, wherein the first fine-tuning base, the second fine-tuning base, and the positioning base are arranged sequentially from left to right and are mutually fitted and connected, characterized in that: The first fine-tuning seat has a central hole at its axial center, and a fine-tuning mandrel with a diameter matching the central hole is fitted inside the central hole. Two inclined T-shaped adjusting bolts are screwed onto the outer circumferential wall of the first fine-tuning seat, and the two T-shaped adjusting bolts are symmetrically arranged on the first fine-tuning seat. The ends of the T-shaped adjusting bolts abut against the outer circumferential wall of the fine-tuning mandrel. The left end face of the second fine-tuning seat has a central blind hole at its center, which matches the diameter of the end of the fine-tuning mandrel, and the end of the fine-tuning mandrel is fixedly fitted inside the central blind hole. The right end face of the second fine-tuning seat has a central blind hole at its center, and a fine-tuning mandrel with a diameter matching the central hole is fitted inside the central blind hole. The matching fine-tuning mandrel two has two inclined T-shaped adjusting bolts two screwed onto the outer circumference of the second fine-tuning seat. The two T-shaped adjusting bolts two are centrally symmetrically arranged on the second fine-tuning seat, and the T-shaped adjusting bolts two and T-shaped adjusting bolt one are distributed intersectingly. The ends of the T-shaped adjusting bolts two abut against the outer circumference of the fine-tuning mandrel two. The left end face of the positioning seat has a center hole two that matches the diameter of the end of the fine-tuning mandrel two, and the end of the fine-tuning mandrel two is fixedly sleeved in the center hole two. The right end face of the positioning seat has a positioning pin for positioning the lens barrel. The center seat is used to abut against the right end face of the lens barrel, and the center of the right end face of the center seat has a center hole.

2. The lens barrel processing fixture according to claim 1, characterized in that: The first fine-tuning seat has multiple screw holes 1 on its right end face. The second fine-tuning seat has a fixing hole 2 at the position corresponding to the screw hole 1 on its right end face. The fixing hole 2 is an elongated hole and is set along the inclined direction of the T-shaped adjusting bolt 1. The second fine-tuning seat is fixedly connected to the first fine-tuning seat through the fixing bolt 2 passing through the fixing hole 2 and the screw holes 1. The second fine-tuning seat has multiple screw holes 2 on its right end face. The positioning seat has a fixing hole 3 at the position corresponding to the screw hole 2 on its right end face. The fixing hole 3 is an elongated hole and is set along the inclined direction of the T-shaped adjusting bolt 2. The positioning seat is fixedly connected to the second fine-tuning seat through the fixing bolt 3 passing through the fixing hole 3 and the screw holes 2.

3. The lens barrel processing fixture according to claim 1, characterized in that: The second fine-tuning seat has a guide convex shaft at the position corresponding to the first T-shaped adjusting bolt on its left end face. The first fine-tuning seat has a guide groove at the position corresponding to the first guide convex shaft on its right end face. The guide groove is rectangular and is set along the inclined direction of the first T-shaped adjusting bolt. The second fine-tuning seat has a guide convex shaft at the position corresponding to the second T-shaped adjusting bolt on its right end face. The positioning seat has a guide groove at the position corresponding to the second guide convex shaft on its left end face. The guide groove is rectangular and is set along the inclined direction of the second T-shaped adjusting bolt.

4. The lens barrel processing fixture according to claim 1, characterized in that: The left end face of the top seat is provided with a cylindrical positioning protrusion, and a positioning convex shaft is provided at the center of the left end of the positioning protrusion.

5. The lens barrel processing fixture according to claim 1, characterized in that: The right end of the first fine-tuning seat is also provided with a plurality of fixing holes, each of which is provided with a fixing bolt for connecting the CNC lathe drive component.

6. The lens barrel processing fixture according to claim 2, characterized in that: The right end face of the second fine-tuning seat is provided with a thinning groove at the position corresponding to the second fixing hole.

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