Thin frustum lens cone inside and outside processing device and method

Abstract

The invention discloses a thin frustum body lens cone inside and outside machining device and method, and belongs to the technical field of frustum body inside and outside machining. The clamping fixture mainly comprises an internal thread clamping fixture and an external thread clamping fixture, the internal thread clamping fixture is of a cylindrical structure, a two-section step III matched with the two-section step I is arranged at the center of one side of the internal thread clamping fixture, internal threads II matched with the external threads are arranged on the inner side of the high step of the two-section step III, and an inner hole II with the same specification as the inner hole I is formed in the center of the other side of the internal thread clamping fixture. The inner hole II is coaxial and communicated with the two-section step III; the external thread mould is of a frustum structure, the thin end of the external thread mould is provided with a three-section type step II matched with the three-section type step I, the thick end of the external thread mould is provided with a two-section type step IV matched with the two-section type step II, the three-section type step IV is provided with an external thread II matched with the internal thread, and one side of the thick end of the external thread mould is fixedly connected with a clamping part; according to the invention, common machining enterprises can complete production of thin frustum lens cones, and the method is especially suitable for mass production.

Description

Technical Field

[0001] The invention belongs to the technical field of internal and external processing of a frustum, and in particular relates to an internal and external processing device and method for a thin frustum barrel. Background Art

[0002] As we all know, frustum-shaped workpieces are difficult to process. The difficulty lies in ensuring the coaxiality of the dimensions. At the same time, due to the small processing space inside the frustum, thin-walled parts are not easy to process, and the processing process is complicated and difficult.

[0003] The inner and outer wall processing technology of the thin-walled frustum-shaped barrel structure requires coaxiality. The existing processing methods and various machine tools are difficult to process, take a long time, and the process is more complicated, which poses technical challenges to mechanical processing companies.

[0004] Therefore, a technical solution is urgently needed to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a device and method for processing the inside and outside of a thin frustum-shaped lens barrel, so as to solve the problem of processing such workpieces in the prior art to ensure that the workpieces are not deformed and have coaxiality, and for enterprises with certain basic processing equipment and processing capabilities, to ensure the accuracy and technical requirements of the workpieces and complete the processing without increasing the costs and burdens of the enterprises.

[0006] A thin frustum-shaped lens barrel internal and external finishing device is used for finishing a thin frustum-shaped lens barrel after rough processing. The thin frustum-shaped lens barrel after rough processing is a hollow thin-walled truncated lens barrel structure, with a two-stage step I on the outer side of the thin end, a three-stage step I and an inner hole I on the inner side; a two-stage step II on the inner side of the thick end; an external thread I is provided on the outer side of the high step of the two-stage step I, and an internal thread I is provided on the inner side of the high step of the two-stage step II. The device is characterized in that: it comprises an internal thread jig and an external thread jig; The internal thread mold is a cylindrical structure, with a two-stage step III matching the two-stage step I at the center of one side, an internal thread II matching the external thread at the inner side of the higher step of the two-stage step III, and an inner hole II with the same specification as the inner hole I at the center of the other side, the inner hole II is coaxial with and connected to the two-stage step III; The external thread mold is a vertebral body structure, with a thin end having a three-stage step II that matches the three-stage step I, and a thick end having a two-stage step IV that matches the two-stage step II, wherein the three-stage step IV has an external thread II that matches the internal thread, and a clamping portion is fixedly connected to one side of the thick end.

[0007] Furthermore, the clamping portion is a cylindrical structure.

[0008] Furthermore, the external thread is 2mm-3mm higher than the higher step of the two-stage step I.

[0009] A method for processing the inside and outside of a thin frustum-shaped lens barrel, using the aforementioned thin frustum-shaped lens barrel inside and outside processing device, the processing method comprises the following processing steps: Step 1: Rough-process the raw material to form a rough-processed thin frustum-shaped lens barrel, and turn the external thread at the high-order position of the two-stage step I on the outer side of the thin end of the rough-processed thin frustum-shaped lens barrel, and reserve 1mm margin on each of the inner and outer walls; Step 2: Perform aging treatment on the rough-machined thin frustum-shaped lens barrel; Step 3: According to the reference size of the thin frustum-shaped lens barrel, the internal thread mold is made of 45# steel. After completion, the internal thread mold is fixed on the lathe chuck; Step 4: Using the two-stage step III of the internal thread jig and the two-stage step I of the roughly machined thin frustum-shaped lens barrel as positioning, the roughly machined thin frustum-shaped lens barrel is threadedly connected to the internal thread jig through the cooperation of the external thread and the internal thread, and semi-finishing is performed, so that the inner wall and part of the outer wall of the semi-finished thin frustum-shaped lens barrel each have a 0.2-0.3mm margin; Step 5: Remove the semi-finished thin frustum-shaped lens barrel from the internal thread mold and perform secondary aging treatment. At this time, the internal thread mold does not move on the lathe chuck; Step 6: Use the two-stage step III of the internal thread jig and the two-stage step I of the roughly machined thin frustum-shaped lens barrel as positioning again, and thread the semi-finished thin frustum-shaped lens barrel and the internal thread jig through the cooperation of the external thread and the internal thread. At this time, the inner wall and part of the outer wall of the thin frustum-shaped lens barrel are finely machined; Step 7: After finishing the inner wall and part of the outer wall of the thin frustum-shaped lens barrel, remove the internal thread mold from the spindle; Step 8: According to the actual size of the thin frustum-shaped lens barrel, the external thread jig is made of No. 1 steel. After the machining is completed, the manufactured external thread jig is fixed on the lathe chuck and does not move; Step 9: Position the three-stage step II and the three-stage step IV on the external thread jig corresponding to the two-stage step II and the three-stage step I of the finely machined thin frustum-shaped lens barrel, respectively, and connect the external thread jig to the finely machined thin frustum-shaped lens barrel through external threads and internal threads; Step 10, fine-processing the remaining outer wall and end surface of the thin frustum-shaped lens barrel to form a finished thin frustum-shaped lens barrel; Step 11: After the finished thin frustum-shaped lens barrel meets the technical accuracy requirements, it is removed, the machine tool is turned off, and the processing is completed.

[0010] Furthermore, when the external threads and internal threads of step 4 and step 6 are connected, grease needs to be applied to the threads to ensure easy disassembly.

[0011] Furthermore, in order to ensure the coaxiality of the finished thin frustum tube during mass production, all raw materials must be completed to step seven, and then step eight and subsequent steps must be carried out one by one. Beneficial Effects

[0012] The present invention provides a thin frustum-shaped lens barrel internal and external processing device and method, which solves the technical problems that the current conventional processing methods cannot ensure the workpiece is not deformed, the coaxiality is not good, the processing time is long, etc., has low production costs, improved product quality, and greatly reduced processing difficulty; it enables ordinary mechanical processing enterprises with certain basic processing equipment and capabilities to complete production tasks, and is suitable for mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the internal thread mold of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of the external thread mold of the present invention;

[0017] Figure 4 This is a schematic diagram of the thin frustum-shaped lens barrel workpiece after rough machining;

[0018] Figure 5 A schematic diagram of machining the front portion of a thin frustum-shaped lens barrel according to the present invention;

[0019] Figure 6 It is a schematic diagram of processing the rear part of the thin frustum-shaped lens barrel according to the present invention.

[0020] In the figure, 1-internal thread mold, 2-external thread mold, 3-thin frustum barrel, 101-two-stage step III, 102-internal thread II, 103-inner hole II, 201-three-stage step II, 202-two-stage step IV, 203-external thread II, 204-clamping part, 301-two-stage step I, 302-three-stage step I, 303-inner hole I, 304-two-stage step II, 305-external thread I, 306-internal thread I. DETAILED DESCRIPTION

[0021] like Figure 1-Figure 6As shown, a thin frustum body lens barrel internal and external finishing device is used for finishing a thin frustum body lens barrel 3 after rough processing. The thin frustum body lens barrel 3 after rough processing is a hollow thin-walled vertebral body structure, and the outer side of the thin end thereof has a two-stage step I301, and the inner side has a three-stage step I302 and an inner hole I303; the inner side of the thick end thereof has a two-stage step II304; wherein the outer side of the high-stage of the two-stage step I301 is provided with an external thread I305, and the inner side of the high-stage of the two-stage step II304 is provided with an internal thread I306. The thin frustum body lens barrel internal and external finishing device comprises an internal thread jig 1 and an external thread jig 2; The internal thread mold 1 is a cylindrical structure, with a two-stage step III101 matched with the two-stage step I301 at the center of one side, an internal thread II102 matched with the external thread 305 is arranged on the inner side of the higher step of the two-stage step III101, and an inner hole II103 with the same specification as the inner hole I303 is opened at the center of the other side, and the inner hole II103 is coaxial with and connected to the two-stage step III101; The external thread mold 2 is a vertebral body structure, and its thin end has a three-stage step II201 that matches the three-stage step I302, and the thick end has a two-stage step IV202 that matches the two-stage step II304, wherein the two-stage step IV202 has an external thread II203 that matches the internal thread 306, and a clamping portion 204 is fixedly connected to one side of the thick end.

[0022] Furthermore, the clamping portion 204 is a cylinder.

[0023] Furthermore, the external thread I305 is 2mm-3mm higher than the higher step of the two-stage step I301.

[0024] A method for processing the inside and outside of a thin frustum-shaped lens barrel, using the aforementioned thin frustum-shaped lens barrel inside and outside processing device, the method comprises the following processing steps: Step 1: Rough-process the raw material to form a rough-processed thin frustum-shaped lens barrel 3, and turn an external thread I305 at the high-order position of the two-stage step I301 on the outer side of the thin end of the rough-processed thin frustum-shaped lens barrel 3. Compared with the standard size, the rough-processed thin frustum-shaped lens barrel 3 has a 1mm margin on the inner and outer walls respectively; Step 2: Performing aging treatment on the rough-machined thin frustum-shaped lens barrel 3; Step 3: According to the reference size of the thin frustum-shaped lens barrel 3, the internal thread jig 1 is machined. The internal thread jig 1 is made of 45# steel. After completion, the internal thread jig 1 is fixed on the lathe chuck and does not move. Step 4: Using the two-stage step III101 of the internal thread jig 1 and the two-stage step I301 of the roughly machined thin frustum-shaped lens barrel 3 as positioning, the roughly machined thin frustum-shaped lens barrel 3 is threadedly connected to the internal thread jig 1 through the cooperation of the external thread I305 and the internal thread II102, and semi-finishing is performed, so that the inner wall and part of the outer wall of the semi-finished thin frustum-shaped lens barrel 3 have a 0.2-0.3 mm margin; Step 5: remove the semi-finished thin frustum-shaped lens barrel 3 from the internal thread mold and perform secondary aging treatment. At this time, the internal thread mold 1 does not move on the lathe chuck; Step 6: Use the two-stage step III101 of the internal thread jig 1 and the two-stage step I301 of the roughly machined thin frustum-shaped lens barrel 3 as positioning again, and thread the semi-finished thin frustum-shaped lens barrel 3 and the internal thread jig 1 through the cooperation of the external thread I305 and the internal thread II102. At this time, the inner wall and part of the outer wall of the thin frustum-shaped lens barrel 3 are finely machined to eliminate the excess; Step 7: After finishing the inner wall and part of the outer wall of the thin frustum-shaped lens barrel 3, the internal thread mold 1 is removed from the main shaft; Step 8: According to the standard size of the thin frustum-shaped lens barrel 3, the external thread jig 2 is machined. The external thread jig 2 is made of 45# steel. After machining, the manufactured external thread jig 2 is fixed on the lathe chuck and does not move; Step nine, the three-stage step II201 and the three-stage step IV202 on the external thread jig 2 are respectively positioned correspondingly to the two-stage step II304 and the three-stage step I302 of the finely machined thin frustum-shaped lens barrel 3, and the external thread jig 2 is connected to the finely machined thin frustum-shaped lens barrel 3 through the external thread II203 and the internal thread I306; Step 10: finishing the remaining outer wall and end surface of the thin frustum-shaped lens barrel 3 including other required processing contents to form a finished product of the thin frustum-shaped lens barrel 3; Step 11: After the finished thin frustum-shaped lens barrel 3 meets the technical accuracy requirements, it is removed, the machine tool is turned off, and the processing is completed.

[0025] When the external thread I305 and the internal thread II102 are connected in step 4 and step 6, grease needs to be applied to the threads to ensure easy disassembly and that the direction of the external thread I305 is consistent with the rotation direction of the processing; In order to ensure the coaxiality of the finished thin cone-shaped lens barrel 3 during mass production, all raw materials must be processed to step seven, and then step eight and subsequent steps must be performed one by one.

Claims

1. A thin frustum lens barrel internal and external finishing device, used for finishing a thin frustum lens barrel (3) after rough processing, wherein the thin frustum lens barrel (3) after rough processing is a hollow thin-walled truncated cone structure, wherein the thin end thereof has a two-stage step I (301) on the outside, a three-stage step I (302) and an inner hole I (303) on the inside; and the thick end thereof has a two-stage step II (304) on the inside; wherein the two-stage step I (301) has an external thread I (305) on the outside of the higher step, and the two-stage step II (304) has an internal thread I (306) on the inside of the higher step, characterized in that: It comprises an internal thread mold (1) and an external thread mold (2); The internal thread mold (1) is a cylindrical structure, with a two-stage step III (101) matching with the two-stage step I (301) provided at the center of one side, an internal thread II (102) matching with the external thread (305) provided on the inner side of the higher step of the two-stage step III (101), and an inner hole II (103) having the same specifications as the inner hole I (303) provided at the center of the other side, the inner hole II (103) being coaxial with and connected to the two-stage step III (101); The external thread mold (2) is a vertebral body structure, wherein the thin end thereof has a three-stage step II (201) matching with the three-stage step I (302), and the thick end thereof has a two-stage step IV (202) matching with the two-stage step II (304), wherein the two-stage step IV (202) has an external thread II (203) matching with the internal thread I (306), and one side of the thick end is fixedly connected with a clamping portion (204).

2. The thin frustum-shaped lens barrel internal and external finishing device according to claim 1, characterized in that: The clamping portion (204) is a cylindrical structure.

3. The thin frustum-shaped lens barrel internal and external finishing device according to claim 1, characterized in that: The external thread I (305) is 2 mm to 3 mm higher than the higher step of the two-stage step I (301).

4. A method for processing the inside and outside of a thin frustum of a cone lens barrel, using the device for processing the inside and outside of a thin frustum of a cone lens barrel as claimed in claim 1, characterized in that: The processing steps include: Step 1: rough-processing the raw material to form a rough-processed thin frustum-shaped lens barrel (3), and turning an external thread I (305) at the high-order position of the two-stage step I (301) on the outer side of the thin end of the rough-processed thin frustum-shaped lens barrel (3), and the rough-processed thin frustum-shaped lens barrel (3) has a 1 mm margin on both the inner and outer walls compared with the standard size; Step 2, performing aging treatment on the roughly machined thin frustum-shaped lens barrel (3); Step 3: According to the reference size of the thin cone-shaped lens barrel (3), an internal thread mold is machined. The internal thread mold (1) is made of 45# steel. After completion, the internal thread mold (1) is fixed on the lathe chuck and does not move. Step 4: Using the two-stage step III (101) of the internal thread jig (1) and the two-stage step I (301) of the roughly machined thin frustum-shaped lens barrel (3) as positioning, the roughly machined thin frustum-shaped lens barrel (3) is threadedly connected to the internal thread jig (1) through the cooperation of the external thread I (305) and the internal thread II (102), and semi-finishing is performed, so that the inner wall and part of the outer wall of the semi-finished thin frustum-shaped lens barrel (3) are each reserved with a margin of 0.2 to 0.3 mm; Step 5: Remove the semi-finished thin frustum-shaped lens barrel (3) from the internal thread mold and perform secondary aging treatment. At this time, the internal thread mold (1) remains on the lathe chuck; Step 6: Using the two-stage step III (101) of the internal thread jig (1) and the two-stage step I (301) of the roughly machined thin frustum-shaped lens barrel (3) as positioning, the semi-finished thin frustum-shaped lens barrel (3) is threadedly connected to the internal thread jig (1) through the cooperation of the external thread I (305) and the internal thread II (102). At this time, the inner wall and part of the outer wall of the thin frustum-shaped lens barrel (3) are finely machined to eliminate the excess; Step 7: After finishing the inner wall and part of the outer wall of the thin frustum-shaped lens barrel (3), the internal thread mold (1) is removed from the main shaft; Step 8: According to the actual size of the thin frustum-shaped lens barrel (3), the external thread jig (2) is machined. The external thread jig (2) is made of 45# steel. After the machining is completed, the manufactured external thread jig (2) is fixed on the lathe chuck and does not move; Step nine, the three-stage step II (201) and the three-stage step IV (202) on the external thread jig (2) are positioned correspondingly to the two-stage step II (304) and the three-stage step I (302) of the finely machined thin frustum-shaped lens barrel (3), and the external thread jig (2) is connected to the finely machined thin frustum-shaped lens barrel (3) via the external thread II (203) and the internal thread I (306); Step 10: fine-processing the remaining outer wall and end surface of the thin frustum-shaped lens barrel (3) to form a finished product of the thin frustum-shaped lens barrel (3); Step 11: After the finished thin cone-shaped lens barrel (3) meets the technical accuracy requirements, it is removed and the machine tool is turned off to complete the processing.

5. The method for processing the inside and outside of a thin frustum-shaped lens barrel according to claim 4, characterized in that: When connecting the external thread I (305) and the internal thread II (102) in steps 4 and 6, grease needs to be applied to the threads to ensure easy disassembly.

6. The method for processing the inside and outside of a thin frustum-shaped lens barrel according to claim 4, characterized in that: In order to ensure the coaxiality of the finished thin cone lens barrel (3) during mass production, all raw materials must be processed to step seven, and then step eight and subsequent steps must be carried out one by one.

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