Shell processing method

Abstract

The present invention relates to a method for processing a shell, comprising the steps of extruding a blank to obtain a product profile, sequentially performing inner cavity rough processing, inner cavity fine processing, appearance surface processing, side hole processing, highlight processing and process waste structure removal, and drilling and tapping processing on the product profile. The present invention tailors suitable processing procedures for different types of shells, and designs fixtures suitable for processing different processing procedures of the shells, so as to ensure the production of products that meet target requirements and effectively control processing costs.

Description

Technical Field

[0001] The present invention relates to the technical field of shell processing, and in particular to a shell processing method. Background Art

[0002] Electronic cigarette products are becoming increasingly popular, and shells of various structural types need to be processed and produced. Different types of shells have different requirements for processing technology. However, the current processing procedures and processing fixture structures are relatively simple and cannot meet the processing requirements for different types of shells. Especially when facing different processing procedures, the shape and structure of the shell will change, and the shell is generally a hollow structure. When a single processing fixture is used for clamping, the shell may be deformed, warped, tilted, and misaligned. In other words, the current shell processing fixture cannot meet the clamping requirements for electronic cigarette shell products in different processing procedures, and cannot obtain electronic cigarette shell products with the target structure and shape. Summary of the invention

[0003] Based on this, the present invention provides a method for processing a shell, which ensures that products that meet target requirements can be produced by tailoring corresponding processing procedures for different types of shells and adopting corresponding fixtures for different processing procedures, and effectively controls processing costs, thereby solving the problem that current processing technology and fixtures cannot meet the processing requirements of different types of shells.

[0004] The present invention provides a method for processing a shell, comprising the steps of:

[0005] S1. Based on the shape of the target shell, the blank is squeezed to obtain a product profile;

[0006] S2, clamping and fixing the product profile with a first fixture, and rough-machining the inner cavity of the product profile to obtain a rough shell with an inner cavity;

[0007] S3, clamping and fixing the rough inner cavity shell with a second fixture, and fine-machining the inner cavity of the rough inner cavity shell to obtain a fine inner cavity shell;

[0008] S4, fixing the inner cavity polished shell with a third fixture, and processing the outer surface of the inner cavity polished shell to obtain a preliminarily formed shell;

[0009] S5, using the third fixture to fix the preliminary formed shell, and processing the preliminary formed shell to form side holes to obtain a preformed shell;

[0010] S6, fixing the preformed shell with a fourth fixture, and performing a high-gloss treatment and a process waste removal structural treatment on the preformed shell to obtain an intermediate molded shell; and

[0011] S7, using a fifth fixture to fix the intermediate molded shell, and performing drilling and tapping processing on the intermediate molded shell to obtain a final molded shell.

[0012] Optionally, in step S1, the shape of the blank is consistent with the outer shape of the target shell, and both ends are processed to form process clamping positions so that the product profile can be clamped and fixed in subsequent processes.

[0013] Optionally, in step S2, the rough machining includes forming two first positioning holes on the process clamping position of the product profile, and forming two second positioning holes and two screw holes in the inner cavity of the product profile by rough machining to obtain the inner cavity rough opening shell.

[0014] Optionally, two of the second positioning holes are diagonally arranged in the inner cavity of the inner cavity opening shell, two of the screw holes are also diagonally arranged in the inner cavity of the inner cavity opening shell, and any of the second positioning holes is adjacently provided with a screw hole.

[0015] Optionally, the first clamp includes a first clamp base, three first side pushers and two first rotary pressure claws arranged on the first clamp base, first driving members respectively linked to the corresponding first side pushers, and second driving members respectively linked to the corresponding first rotary pressure claws, and the first clamp base is provided with a first processing position for positioning the product profile; wherein in the step S2, the outer shape of the product profile is positioned in the X-axis direction and the Y-axis direction by the lateral pushing of the three first side pushers and the pressing of the two first rotary pressure claws, and the positioning of the product profile in the Z-axis direction is achieved by positioning the bottom surface of the product profile by the first processing position.

[0016] Optionally, the first side-pushing member is a side-pushing cylinder, the first driving member is a cylinder, and the second driving member is a rotary downward-pressing cylinder.

[0017] Optionally, the first fixture also includes a plurality of first limit blocks and a plurality of first positioning reference blocks arranged on the first fixture base, and each of the first limit blocks is provided with a limit ball head facing the product profile; wherein in the step S2, when the product profile is clamped on the first fixture, the limit ball heads of the plurality of first limit blocks are tightly attached to the outer surface of the product profile, so that the product profile is tightly attached to the first positioning reference blocks of the first fixture respectively arranged in the X-axis and Y-axis directions, thereby ensuring that the product profile can be accurately located at the first processing position.

[0018] Optionally, in the fine processing of step S3, the inner cavity of the rough inner cavity shell is processed to a required size of the target shell to obtain the fine inner cavity shell.

[0019] Optionally, the second clamp includes a second clamp base, two second rotating pressure claws arranged on the second clamp base, and a third driving member for linkage driving the second rotating pressure claws to rotate and clamp, and the second clamp base is provided with a second processing position for positioning the inner cavity roughening shell; wherein in the step S3, the inner cavity roughening shell is clamped and positioned on the second clamp by using two first pins to be fixed in the two first positioning holes respectively, and using two second rotating pressure claws to clamp and fix the process clamping positions on both sides of the inner cavity roughening shell. The bottom surface of the inner cavity roughening shell is positioned by the second processing position.

[0020] Optionally, the second fixture also includes a close-fitting cylinder arranged on the base of the second fixture; wherein in the step S3, the close-fitting cylinder is used to assist in supporting the higher side wall of the inner cavity roughening shell to withstand the cutting force of the inner cavity side wall processing of the inner cavity roughening shell, thereby improving the processing effect.

[0021] Optionally, in the step S4, the process clamping position and the first positioning hole are removed while processing the appearance surface.

[0022] Optionally, the third clamp includes a third clamp base, a positioning body arranged on the third clamp base, and a fourth driving member arranged under the third clamp base, the positioning body is provided with a through slot for the tensioning shaft of the fourth driving member to pass through, and is provided with a plurality of assembly holes; wherein in the step S4, the positioning body is locked with the inner cavity precision light shell by passing two second pins and two fixing screws through the positioning body and locking them in the corresponding second positioning holes and the screw holes, and the positioning body and the inner cavity precision light shell are fixed to the third clamp base by the fourth driving member jointly tightening the positioning body.

[0023] Optionally, the fourth driving member is a cylinder.

[0024] Optionally, the method of fixing the preliminary molded shell with the third clamp in step S5 is the same as that in step S4, and in step S5, the side hole processed and formed on the preliminary molded shell is a button hole and / or a USB socket.

[0025] Optionally, in the step S6, the second positioning hole and the screw hole in the inner cavity of the preformed shell are removed by machining, and the opening edge of the preformed shell is subjected to highlighting and chamfering.

[0026] Optionally, the fourth fixture includes a fourth fixture base and two second side pushers, an oblique side pusher, a plurality of second limit blocks and a plurality of second positioning reference blocks, all of which are arranged on the fourth fixture base, wherein the two second side pushers correspond to the side walls of the preformed shell, wherein the oblique side pusher corresponds to the end position of the preformed shell, and the fourth fixture base is provided with a third processing position; wherein in the step S6, the outer shape of the preformed shell is fixed by lateral pushing of the second side pusher and the oblique side pusher of the fourth fixture, and the limiting ball heads of the plurality of second limit blocks are tightly attached to the outer shape surface of the preformed shell, so that the preformed shell is tightly attached to the second positioning reference blocks of the fourth fixture respectively arranged in the X-axis and Y-axis directions, thereby ensuring that the preformed shell can be accurately located at the third processing position.

[0027] Optionally, the second positioning reference block of the fourth fixture arranged in the Y-axis direction is provided with a contoured undercut structure, and the contoured undercut structure corresponds to the position of the oblique side pusher; wherein in step S6, the oblique side pusher pushes the preformed shell in an oblique downward manner until it contacts the contoured undercut structure, and generates lateral and downward force components through the contoured undercut structure, thereby ensuring the stability of the preformed shell during the processing.

[0028] Optionally, the fifth clamp includes a fifth clamp base, a third side pusher, a third limit block and a third positioning reference block all arranged on the fifth clamp base, a pressure block for pressing the intermediate molding shell, a third rotating pressure claw for driving the pressure block to press the intermediate molding shell downward, and a fifth driving member for linkage driving the third rotating pressure claw; wherein in step S7, the intermediate molding shell is pushed laterally by the three third side pushers of the fifth clamp, and the limiting ball heads of the plurality of third limit blocks are pressed against the outer surface of the intermediate molding shell, so that the intermediate molding shell is pressed against the third positioning reference blocks of the fifth clamp respectively arranged in the X-axis and Y-axis directions, and the pressure block is pressed downward by the fifth driving member to press the third rotating pressure claw, so that the pressure block presses the intermediate molding shell, and the intermediate molding shell is clamped and positioned in the fifth clamp.

[0029] Optionally, the fifth driving member is a rotating downward-pressing cylinder, and the pressing block includes an internal metal member and an external non-metal member wrapping the internal metal member.

[0030] Optionally, in step S2, step S5 and step S7, a three-axis CNC machining center is used for processing, and the first fixture, the third fixture and the fifth fixture are all located outside the three-axis CNC machining center to clamp and position the corresponding shell; in step S3, step S4 and step S6, a four-axis CNC machining center is used for processing, and the second fixture, the third fixture and the fourth fixture are all located outside the four-axis CNC machining center to clamp and position the corresponding shell.

[0031] Optionally, between step S4 and step S5, there are also steps of performing a first cleaning and full inspection, rough grinding of the appearance surface, and a second cleaning and full inspection on the preliminary formed shell; between step S5 and step S6, there are also steps of performing a fine grinding of the appearance surface, cleaning and full inspection, and a first anodizing treatment on the preformed shell; between step S6 and step S7, there are also steps of performing a full inspection and a second anodizing treatment on the intermediate formed shell; after step S7, there are also steps of cleaning and full inspection, assembling auxiliary materials, and full inspection and packaging of the final formed shell.

[0032] The present invention ensures that products that meet target requirements can be produced and effectively controls processing costs by tailoring corresponding processing procedures for different types of shells and using corresponding fixtures for different processing procedures.

[0033] The present invention designs a suitable clamp structure according to the processing content of different processing steps and the shape and structure of the shell. By clamping and fixing different parts of the shell in multiple directions, the shell can be stably and accurately located at the corresponding processing position, effectively avoiding deformation, warping, tilting, and misalignment of the shell, thereby ensuring the processing quality of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a flowchart of a method for processing the shell of the present invention;

[0035] Figure 2 for Figure 1 The CNC processing process flow chart of the processing method of the shell shown;

[0036] Figure 3 for Figure 1 The full process flow chart of the processing method of the shell shown;

[0037] Figure 4 It is a schematic diagram of the three-dimensional structure of the product profile of the shell processing method of the present invention;

[0038] Figure 5It is a schematic diagram of the three-dimensional structure of the shell with the inner cavity roughened in the shell processing method of the present invention;

[0039] Figure 6 It is a three-dimensional structural schematic diagram of a first clamp used in the shell processing method of the present invention, which illustrates a state in which the shell with an inner cavity opening is clamped in the first clamp;

[0040] Figure 7 It is a top view schematic diagram of a first clamp used in the shell processing method of the present invention, which illustrates a state in which the shell with an inner cavity opening is clamped in the first clamp;

[0041] Figure 8 A schematic diagram of the three-dimensional structure of the inner cavity polished shell of the shell processing method of the present invention;

[0042] Fig. 9 It is a three-dimensional structural schematic diagram of a second clamp used in the shell processing method of the present invention, which illustrates a state where the inner cavity polishing shell is clamped in the second clamp;

[0043] Fig.10 It is a schematic diagram of the three-dimensional structure of a preliminary formed shell in the shell processing method of the present invention;

[0044] Fig.11 It is a three-dimensional structural schematic diagram of a third clamp used in the shell processing method of the present invention, which illustrates a state where the preliminary formed shell is clamped in the third clamp;

[0045] Fig.12 A partial exploded view of a third fixture used in the shell processing method of the present invention;

[0046] Fig.13 A side view schematic diagram of a third fixture used in the shell processing method of the present invention;

[0047] Fig.14 for Fig.13 A schematic cross-sectional view of the third fixture along the AA axis shown;

[0048] Fig.15 A schematic top view of a positioning body of a third fixture used in the shell processing method of the present invention;

[0049] Fig.16 It is a schematic diagram of the three-dimensional structure of a preformed shell in the shell processing method of the present invention;

[0050] Fig.17 It is a schematic diagram of the three-dimensional structure of the shell processing method of the present invention using a third fixture to clamp and fix the preformed shell;

[0051] Fig.18 It is a schematic diagram of the three-dimensional structure of an intermediate molded shell in the shell processing method of the present invention;

[0052] Fig.19 is a schematic diagram of the three-dimensional structure of a fourth clamp used in the shell processing method of the present invention, which illustrates a state in which the intermediate molded shell is clamped in the fourth clamp;

[0053] Fig. 20 A schematic top view of a fourth fixture used in the shell processing method of the present invention;

[0054] Fig.21 A side view schematic diagram of a fourth clamp used in the shell processing method of the present invention;

[0055] Fig. 22 It is a schematic diagram of the three-dimensional structure of the final molded shell of the shell processing method of the present invention;

[0056] Fig.23 is a three-dimensional structural schematic diagram of a fifth clamp used in the shell processing method of the present invention, which illustrates a state in which the final molded shell is clamped in the fifth clamp;

[0057] Fig.24 is a top view schematic diagram of a fifth clamp used in the shell processing method of the present invention, which illustrates a state in which the final molded shell is clamped in the fifth clamp;

[0058] Fig.25 It is a schematic diagram of the three-dimensional structure of the pressing block of the fifth clamp used in the shell processing method of the present invention.

[0059] The meanings of the symbols in the accompanying drawings are:

[0060] 11-product profile; 12-rough inner cavity shell; 13-finished inner cavity shell; 14-preliminary molding shell; 15-preformed shell; 16-intermediate molding shell; 17-final molding shell; 111-process clamping position; 112-first positioning hole; 121-second positioning hole; 122-screw hole; 151-side hole; 20-first fixture; 21-first fixture base; 22-first side pusher; 23-first rotating pressure claw; 24-first driving member; 25-second driving member; 26-first processing position; 27-first limit block; 271-limiting ball head; 28-first positioning reference block; 30-second fixture; 31-second fixture base; 32-second rotating pressure claw; 33-third driving member; 34-second processing position; 35-close to the cylinder; 40-third fixture; 41-third fixture base; 42-fixed The main body; 421-through groove; 422-assembly hole; 423-supporting part; 4211-elliptical opening; 43-fourth driving member; 431-tensioning shaft; 4311-elliptical thick end; 50-fourth clamp; 51-fourth clamp base; 52-second side push member; 53-oblique side push member; 54-second limit block; 55-second positioning reference block; 56-third processing position; 57-profile undercut structure; 60-fifth clamp; 61-fifth clamp base; 62-third side push member; 63-third limit block; 64-third positioning reference block; 65-pressing block; 651-internal metal parts; 652-external non-metal parts; 66-third rotating pressing claw; 67-fifth driving member; 70-three-axis CNC machining center; 80-four-axis CNC machining center; 91-first pin; 92-second pin; 93-fixing screw. DETAILED DESCRIPTION

[0061] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0062] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0064] The present invention addresses the problem that current processing techniques and fixtures cannot meet the processing requirements of different types of shells. By tailoring corresponding fixtures and processing procedures for different types of shells, it ensures that products that meet target requirements can be produced and effectively controls processing costs.

[0065] Specifically, Figures 1 to 3 As shown, the present invention provides a processing fixture for a shell, comprising the steps of:

[0066] S1, based on the shape of the target shell, extruding the blank to obtain a product profile 11;

[0067] S2, clamping and fixing the product profile 11 with a first clamp 20, and rough-machining the inner cavity of the product profile 11 to obtain a rough-opened inner cavity shell 12;

[0068] S3, clamping and fixing the inner cavity rough shell 12 with a second fixture 30, and fine-machining the inner cavity of the inner cavity rough shell 12 to obtain an inner cavity fine-finish shell 13;

[0069] S4, using a third fixture 40 to fix the inner cavity polished shell 13, and processing the appearance surface of the inner cavity polished shell 13 to obtain a preliminary molded shell 14;

[0070] S5, using the third fixture 40 to fix the preliminary molded shell 14, and processing the side hole 151 on the preliminary molded shell 14 to obtain the preformed shell 15;

[0071] S6, using a fourth fixture 50 to fix the preformed shell 15, and performing a high-gloss treatment and a process waste removal structural treatment on the preformed shell 15 to obtain an intermediate molded shell 16; and

[0072] S7, using the fifth clamp 60 to fix the intermediate molded shell 16, and performing drilling and tapping processing on the intermediate molded shell 16 to obtain a final molded shell 17.

[0073] It is worth mentioning that Figure 3 As shown, between step S4 and step S5, there are also steps of performing a first cleaning and full inspection, rough grinding of the appearance surface, and a second cleaning and full inspection on the preliminary formed shell; between step S5 and step S6, there are also steps of performing a fine grinding of the appearance surface, cleaning and full inspection, and a first anodizing treatment on the preformed shell; between step S6 and step S7, there is also a step of performing a full inspection and a second anodizing treatment on the intermediate formed shell; after step S7, there are also steps of cleaning and full inspection, assembling auxiliary materials, and full inspection and packaging of the final formed shell.

[0074] In addition, it is worth mentioning that since the shell cannot be thickened too much after one anodizing treatment, two anodizing treatment steps are used in the processing process to thicken the shell.

[0075] In particular, if Figure 4 As shown, in the step S1, the shape of the blank is consistent with the outer shape of the target shell, and process clamping positions 111 are formed at both ends so that the product profile 11 can be clamped and fixed in subsequent processes.

[0076] It is worth mentioning that the blank is similar in shape to the target shell and has sufficient processing margin, which is beneficial to reducing raw material costs and processing costs.

[0077] In addition, it is worth mentioning that the profile blank can be aluminum or aluminum alloy material, and the product profile 11 can be obtained by extruding the blank by extrusion, rolling, etc. The present invention is not limited to this. In this preferred embodiment of the present invention, the aluminum extrusion direction is Figure 4 Direction indicated by the arrow.

[0078] It can be understood that in steps S1 to S3, the process clamping position 111 is retained, and after step S3, the process clamping position 111 and unnecessary external materials are removed, that is, in steps S4 and S5, the corresponding shell is fixed to the corresponding fixture by relying on the positioning holes and screw holes inside the shell. Therefore, the positioning holes and screw holes need to be processed in step S2 to facilitate the positioning and fixation of the shell in subsequent processes.

[0079] Specifically, in step S2, two first positioning holes 112 are formed on the process clamping position 111 of the product profile 11, and two second positioning holes 121 and two screw holes 122 are roughly formed in the inner cavity of the product profile 11 to obtain the inner cavity rough shell 12.

[0080] It is worth mentioning that when the inner cavity of the product profile 11 is processed in the step S2, a margin is left for fine processing in the step S3. The first positioning hole 112 and the second positioning hole 121 processed in the step S2 are used for clamping and positioning in subsequent processes. The two screw holes 122 processed can be M6 screw holes, which are used to lock the corresponding shell on the corresponding fixture in steps S4 and S5.

[0081] As Figure 5 As shown, the two second positioning holes 121 are diagonally arranged in the inner cavity of the inner cavity opening shell 12, the two screw holes 122 are also diagonally arranged in the inner cavity of the inner cavity opening shell 12, and any second positioning hole 121 is adjacent to a screw hole 122.

[0082] In particular, if Figure 6 and Figure 7 As shown, the present invention designs the first clamp 20 for the processing of step S2. Specifically, the first clamp 20 includes a first clamp base 21, three first side pushers 22 and two first rotary pressing claws 23 respectively arranged on the first clamp base 21, first driving members 24 respectively linked to the corresponding first side pushers 22, and second driving members 25 respectively linked to the corresponding first rotary pressing claws 23, and the first clamp base 21 is provided with a first processing position 26 for positioning the product profile 11.

[0083] Specifically, the three first side push members 22 are arranged on the side of the first processing position 26 in the form of two of them along the X-axis direction and one of them along the Y-axis direction, and the two first rotary pressure claws 23 are arranged at both ends of the first processing position 26; the three first side push members 22 are used to laterally push the product profile 11 in the X-axis and Y-axis directions, the two first rotary pressure claws 23 are used to press and fix the process clamping positions 111 at both ends of the product profile 11, and the first processing position 26 is used to position the bottom surface of the product profile 11.

[0084] That is to say, in step S2, the three first side push members 22 push the product profile 11 sideways, and the two first rotating pressing claws 23 press it to position the shape of the product profile 11 in the X-axis direction and the Y-axis direction, and the first processing position 26 positions the bottom surface of the product profile 11 to position the product profile 11 in the Z-axis direction, so that the product profile 11 can be stably positioned on the first fixture 20, which facilitates the rough processing of the product profile 11 to form an inner cavity, and obtain the inner cavity rough shell 12.

[0085] Furthermore, the first fixture 20 also includes a plurality of first limit blocks 27 and a plurality of first positioning reference blocks 28 arranged on the first fixture base 21, the first limit blocks 27 are arranged on the first fixture base 21 along the X-axis direction, and the plurality of first positioning reference blocks 28 are respectively arranged on the first fixture base 21 along the X-axis and Y-axis directions, and each of the first limit blocks 27 is provided with a limit ball head facing the product profile 11; wherein in the step S2, when the product profile 11 is clamped on the first fixture 20, the limit ball heads 271 of the plurality of first limit blocks 27 are tightly attached to the outer surface of the product profile 11, so that the product profile 11 is tightly attached to the first positioning reference blocks 28 of the first fixture 20 respectively arranged in the X-axis and Y-axis directions, thereby ensuring that the product profile 11 can be accurately located at the first processing position 26, thereby ensuring the accuracy of the processing.

[0086] In this embodiment of the present invention, there are two first limit blocks 27, and the first fixture 20 is provided with two first positioning reference blocks 28 in the X-axis direction and one first positioning reference block 28 in the Y-axis direction.

[0087] It can be understood that the first limit block 27 is provided with a spring (arranged inside the first limit block 27, not shown in the figure) and a limit ball head 271 fixed to the spring. When the clamp is turned, the spring is compressed and the reaction force is given to the corresponding limit ball head 271, so that the spring elastic force of the first limit block 27 makes the corresponding limit ball head close to the outer surface of the product profile 11, so that the product profile 11 is close to the first positioning reference block 28 of the first clamp 20 respectively arranged in the X-axis and Y-axis directions, thereby ensuring that the product profile 11 is accurately in the first processing position 26, avoiding deformation, warping, tilting, misalignment, etc. of the product profile 11 during the lateral pushing process of the three side push members.

[0088] It is worth mentioning that the first driving member 24 can be a cylinder for driving the corresponding first side push member 22 to move linearly, and the second driving member 25 is a rotary pressing cylinder for driving the first rotary pressing claw 23 to rotate and press and fix the process clamping positions 111 at both ends of the product profile 11.

[0089] In addition, it is worth mentioning that in the step S2 , a three-axis CNC machining center 70 is used for machining, and the first fixture 20 is located outside the three-axis CNC machining center 70 to clamp and position the product profile 11 .

[0090] Furthermore, in the finishing process of step S3, the inner cavity of the inner cavity rough shell 12 is processed to the required size of the target shell to obtain the inner cavity finishing shell 13. The structure of the inner cavity finishing shell 13 is as follows: Figure 8 shown.

[0091] That is to say, the processing content of step S3 is to process the inner cavity size of the inner cavity roughening shell 12 according to the target size of the target shell.

[0092] In particular, if Fig. 9As shown, the present invention designs a second fixture 30 for the processing of step S3. Specifically, the second fixture 30 includes a second fixture base 31, two second rotating pressing claws 32 arranged on the second fixture base 31, and a third driving member 33 for driving the second rotating pressing claws 32 to rotate and press in linkage, the second fixture base 31 is provided with a second processing position 34 for positioning the inner cavity roughening shell 12, and the two second rotating pressing claws 32 are respectively arranged on both sides of the second processing position 34; wherein in step S3, the inner cavity roughening shell 12 is clamped and positioned on the second fixture 30 by using two first pins 91 to be fixed on the two first positioning holes 112 respectively, and using the two second rotating pressing claws 32 to press and fix the process clamping positions 111 on both sides of the inner cavity roughening shell 12, and the bottom surface of the inner cavity roughening shell 12 is positioned by the second processing position 34.

[0093] In particular, the second clamp 30 also includes a close-fitting cylinder 35 arranged on the second clamp base 31; wherein in the step S3, the close-fitting cylinder 35 is used to assist in supporting the higher side wall of the inner cavity roughening shell 12 to withstand the cutting force of the inner cavity side wall processing of the inner cavity roughening shell 12, thereby improving the processing effect.

[0094] That is, in the step S3 , the first positioning hole 112 , the two second rotating pressing claws 32 , and the close-approaching cylinder 35 are used to realize the positioning and fixing of the inner cavity opening housing 12 .

[0095] It is worth mentioning that in the step S3 , a four-axis CNC machining center 80 is used for machining, and the second fixture 30 is located outside the four-axis CNC machining center 80 to clamp and position the inner cavity rough shell 12 .

[0096] Furthermore, in the step S4, the process clamping position 111 and the first positioning hole 112 are removed while processing the appearance surface, and the structure of the initially formed shell 14 is as follows: Fig.10 shown.

[0097] In particular, if Figures 11 to 15As shown, the present invention designs a third fixture 40 for the processing of step S4. Specifically, the third fixture 40 includes a third fixture base 41, a positioning body 42 disposed on the third fixture base 41, and a fourth driving member 43 disposed under the third fixture base 41, wherein the positioning body 42 is provided with a through slot 421 for the tensioning shaft 431 of the fourth driving member 43 to pass through, and is provided with a plurality of assembly holes 422, wherein the assembly holes 422 are used for the second pin 92 and the fixing screw 93 to pass through, so that the positioning body 42 and the inner cavity light shell 13 are locked by locking the ends of the second pin 92 and the fixing screw 93 in the corresponding second positioning hole 121 and the screw hole 122 of the inner cavity light shell 13, and then the positioning body 42 and the inner cavity light shell 13 are locked on the third fixture 40 by pulling the positioning body 42 in a linkage manner by the tensioning shaft 431 of the fourth driving member 43.

[0098] That is to say, in step S4, the positioning body 42 is locked with the inner cavity finishing shell 13 by passing two second pins 92 and two fixing screws 93 through the positioning body 42 and locking them in the corresponding second positioning holes 121 and the screw holes 122, and the positioning body 42 and the inner cavity finishing shell 13 are fixed on the third clamp base 41 by linkage and tightening the positioning body 42 through the fourth driving member 43.

[0099] It can be understood that, on the one hand, the inner cavity finishing shell 13 and the positioning body 42 are locked by the second pin 92 and the fixing screw 93, and on the other hand, the inner cavity finishing shell 13 is fixed on the positioning body 42 by being upside down, so that the positioning body 42 supports the inner cavity of the inner cavity finishing shell 13, which can facilitate the appearance surface processing while avoiding the deformation of the inner cavity finishing shell 13, thereby ensuring good processing quality.

[0100] In particular, if Fig.14 and Fig.15As shown, the positioning body 42 of the third clamp 40 is extended to form a supporting portion 423 on the through slot 421, so that the through slot 421 has an elliptical opening 4211 along the length direction of the positioning body 42, and the end of the tensioning shaft 431 of the driving member is an elliptical thick end 4311 and the tensioning shaft 431 as a whole can rotate in the through slot 421. When the tensioning shaft 431 is driven to rotate until the elliptical thick end 4311 is biased towards the elliptical opening 4211, the driving member can drive the tensioning shaft 431 to move downward and support the supporting portion 423, so that the positioning body 42 can be tightened and fixed on the third clamp base 41. Correspondingly, when the tensioning shaft 431 is driven to rotate until the elliptical thick end 4311 is aligned with the elliptical opening 4211, the tensioning shaft 431 can be pulled out from the through slot 421.

[0101] It is worth mentioning that in the step S4 , a four-axis CNC machining center 80 is used for machining, and the third fixture 40 is located outside the four-axis CNC machining center 80 to clamp and position the inner cavity finishing shell 13 .

[0102] In addition, it is worth mentioning that in step S4, the locking operation of the positioning body 42 and the inner cavity finishing shell 13 is completed outside the machine of the four-axis CNC machining center 80. There can be multiple positioning bodies 42, which can meet the needs of products being processed inside the machine while other products are being clamped and screwed outside the machine, thereby realizing an uninterrupted cycle of clamping and processing.

[0103] Furthermore, if Fig.16 and Fig.17 As shown, the method of fixing the preliminary molded shell 14 with the third clamp 40 in step S5 is the same as step S4, and in step S5, the side hole 151 processed and formed on the preliminary molded shell 14 is a button hole and / or a USB socket.

[0104] It is worth mentioning that in the step S5 , a three-axis CNC machining center 70 is used for machining, and the third fixture 40 is located outside the three-axis CNC machining center 70 to clamp and position the preliminary formed shell 14 .

[0105] Further, in the step S6, the second positioning hole 121 and the screw hole 122 in the inner cavity of the preformed shell 15 are processed and removed, and the opening edge of the preformed shell 15 is subjected to highlight and chamfer processing, and the intermediate molded shell 16 is obtained as shown in FIG. Fig.18 shown.

[0106] It can be understood that in step S6 and step S7, the process clamping position 111, the first positioning hole 112, the internal second positioning hole 121 and the screw hole 122 are all removed, and the shell is mainly fixed by lateral pushing of the side push cylinder.

[0107] In particular, if Figures 19 to 21 As shown, the present invention designs the fourth fixture 50 for the processing of step S6. Specifically, the fourth fixture 50 includes a fourth fixture base 51, a third processing position 56 arranged on the fourth fixture base 51 and used to place the preformed shell 15, two second side pushers 52 arranged on the fourth fixture base 51 along the X-axis direction, an oblique side pusher 53 arranged on the fourth fixture base 51 along the Y-axis direction, a plurality of second limit blocks 54 arranged on the periphery of the third processing position 56 along the X-axis direction, and a plurality of second positioning reference blocks 55 arranged on the periphery of the third processing position 56 along the X-axis direction and the Y-axis direction respectively; wherein the second side pusher 52 and the oblique side pusher 53 are used to laterally push and fix the preformed shell 15, and the second limit block 54 and the second positioning reference block 55 are used to closely contact the outer surface of the preformed shell 15, so as to ensure that the preformed shell 15 can be accurately located at the third processing position 56.

[0108] That is to say, in step S6, the outer shape of the preformed shell 15 is fixed by lateral pushing of the second side push piece 52 and the oblique side push piece 53 of the fourth clamp 50, and the limiting ball heads of multiple second limiting blocks 54 are tightly attached to the outer surface of the preformed shell 15, so that the preformed shell 15 is tightly attached to the second positioning reference blocks 55 of the fourth clamp 50 respectively arranged in the X-axis and Y-axis directions, thereby ensuring that the preformed shell 15 can be accurately located at the third processing position 56.

[0109] It can be understood that when the preformed shell 15 is clamped on the fourth clamp 50, the spring force of the second limit block 54 makes its limit ball head close to the appearance surface of the preformed shell 15, so that the preformed shell 15 is close to the corresponding second positioning reference block 55, thereby ensuring that the preformed shell 15 is in the accurate third processing position 56, avoiding the preformed shell 15 from warping, tilting, and misalignment during the pushing process of the second side push piece 52 and the oblique side push piece 53.

[0110] Moreover, in step S6, the second positioning reference block 55 adopts a positioning reference block with a large area support so as to increase the contact area with the preformed shell 15, thereby avoiding deformation of the preformed shell 15 during the tightening process of the second side push member 52 and the oblique side push member 53.

[0111] Furthermore, the second positioning reference block 55 of the fourth fixture 50 arranged in the Y-axis direction is provided with a contoured undercut structure 57, and the contoured undercut structure 57 corresponds to the position of the oblique side push piece 53; wherein in the step S6, the oblique side push piece 53 pushes the preformed shell 15 in an oblique downward manner until it contacts the contoured undercut structure 57, and lateral and downward components of force are generated through the contoured undercut structure 57, thereby ensuring the stability of the preformed shell 15 during the processing process.

[0112] Furthermore, if Fig. 22 As shown, the specific structure of the final molded shell 17 obtained in step S7 is explained, and the final molded shell 17 is the target shell.

[0113] In particular, if Figure 23 to Figure 25 As shown, the present invention designs the fifth fixture 60 for the processing of step S7. Specifically, the fifth fixture 60 includes a fifth fixture base 61, a plurality of third side pushers 62 and a third positioning reference block 64 respectively arranged on the fifth fixture base 61 along the X-axis direction and the Y-axis direction, a third limit block 63 arranged on the fifth fixture base 61 along the X-axis direction, a pressing block 65 arranged in the inner cavity of the intermediate molding shell 16 for pressing the intermediate molding shell 16, a third rotating pressing claw 66 for driving the pressing block 65 to press the intermediate molding shell 16 downward, and a fifth driving member 67 for driving the third rotating pressing claw 66 in linkage, wherein the third side pusher 62, the third limit block 63 and the third positioning reference block 64 are used to press and support the outer surface of the intermediate molding shell 16 on the outside, and the pressing block 65 is used to press and fix the intermediate molding shell 16 in the inner cavity of the intermediate molding shell 16.

[0114] That is to say, in step S7, the intermediate molded shell 16 is pushed laterally by the three third side push members 62 of the fifth clamp 60, and the limiting ball heads of the plurality of third limiting blocks 63 are tightly against the outer surface of the intermediate molded shell 16, so that the intermediate molded shell 16 is tightly against the third positioning reference blocks 64 of the fifth clamp 60 respectively arranged in the X-axis and Y-axis directions, and the third rotating pressing claw 66 is driven by the fifth driving member 67 to press the pressing block 65, so that the pressing block 65 presses the intermediate molded shell 16 downward, and the intermediate molded shell 16 is clamped and positioned in the fifth clamp 60.

[0115] It is worth mentioning that there is a slight gap between the third limit block 63 and the intermediate molded shell 16 to ensure that the intermediate molded shell 16 can be placed in a precise processing position and avoid the intermediate molded shell 16 from warping, tilting or misalignment during the lateral pushing process of the third side push member 62.

[0116] In addition, it is worth mentioning that the fifth driving member 67 is a rotating downward-pressing cylinder, and the pressing block 65 includes an internal metal member 651 and an external non-metallic member 652 wrapping the internal metal member 651. The internal metal member 651 is used to ensure strength, and the external non-metallic member 652 is used to press the intermediate molded shell 16 to avoid crushing the intermediate molded shell 16.

[0117] It can be understood that by pushing the third side push member 62, the third limit block 63 and the third positioning reference block 64 on the outside of the intermediate molding shell 16 and by pressing and supporting the inside of the intermediate molding shell 16 through the pressing block 65, the intermediate molding shell 16 can be stably fixed on the fifth clamp 60 and deformation of the intermediate molding shell 16 can be avoided.

[0118] It can also be understood that the first limit block 27, the second limit block 54 and the third limit block 63 have the same structure, and their functions are to enable the corresponding shell to fit tightly against the corresponding positioning reference block to ensure the accuracy of positioning. The functions of the first positioning reference block 28, the second positioning reference block 55 and the third positioning reference block 64 are to cooperate with the corresponding limit blocks to ensure the accuracy of shell positioning and avoid the shell from warping, tilting, misalignment, etc. during the lateral pushing process of the lateral cylinder.

[0119] It is worth mentioning that in the step S7, a three-axis CNC machining center 70 is used for machining, and the fifth fixture 60 is located outside the three-axis CNC machining center 70 to clamp and position the corresponding housing.

[0120] On the other hand, the present invention also provides a processing fixture for a shell, which is suitable for being assembled outside a CNC machine tool and is used to clamp the corresponding shell in the corresponding CNC processing process of the shell, and includes the first fixture 20, the second fixture 30, the third fixture 40, the fourth fixture 50 and the fifth fixture 60.

[0121] Specifically, the first clamp 20 is used to clamp and fix the product profile 11 obtained by extrusion, so as to facilitate the first CNC processing step of the product profile 11, which is to perform rough processing on the inner cavity of the product profile 11.

[0122] Specifically, the second fixture 30 is used to clamp and fix the rough inner cavity shell 12 obtained by rough machining of the inner cavity in the first CNC machining process, so as to facilitate the second CNC machining process of the rough inner cavity shell 12, and the second CNC machining process is to perform fine machining on the rough inner cavity shell 12.

[0123] Specifically, the third clamp 40 is used to clamp and fix the inner cavity polished shell 13 obtained by the inner cavity fine processing in the second CNC processing process, so that the inner cavity polished shell 13 can undergo the third CNC processing process, and the third CNC processing process is to perform appearance surface processing on the inner cavity polished shell 13; the third clamp 40 is also used to clamp and fix the preliminary molded shell 14 obtained by the appearance surface processing in the third CNC processing process, so that the preliminary molded shell 14 can undergo the fourth CNC processing process, and the fourth CNC processing process is to perform side hole processing on the preliminary molded shell 14.

[0124] Specifically, the fourth fixture 50 is used to clamp and fix the preformed shell 15 obtained by side hole processing in the fourth CNC processing step, so that the preformed shell 15 can undergo the fifth CNC processing step, which is to perform high-gloss processing on the preformed shell 15 and remove the process waste structures of the inner cavity such as positioning holes, screw holes, etc.

[0125] Specifically, the fifth fixture 60 is used to clamp and fix the intermediate molded shell 16 obtained by the highlight and process waste structure treatment in the fifth CNC processing step, so that the intermediate molded shell 16 can undergo the sixth CNC processing step, and the sixth CNC processing step is to drill and tap the intermediate molded shell 16 to obtain the final molded shell 17.

[0126] In general, the present invention tailors appropriate processing procedures for different types of shells, and designs suitable fixtures for processing different processing procedures of the shells, so as to ensure the production of products that meet target requirements and effectively control processing costs.

[0127] Moreover, the present invention designs a suitable clamp structure according to the processing content of different processing steps and the shape and structure of the shell. By clamping and fixing different parts of the shell in multiple directions, the shell can be stably and accurately located in the corresponding processing position, effectively avoiding deformation, warping, tilting, and misalignment of the shell, thereby ensuring the processing quality of the shell.

[0128] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0129] The above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for processing a shell, characterized in that: Includes steps: S1. Based on the shape of the target shell, the blank is squeezed to obtain a product profile; S2, clamping and fixing the product profile with a first fixture, and rough-machining the inner cavity of the product profile to obtain a rough shell with an inner cavity; S3, clamping and fixing the rough inner cavity shell with a second fixture, and fine-machining the inner cavity of the rough inner cavity shell to obtain a fine inner cavity shell; S4, fixing the inner cavity polished shell with a third fixture, and processing the outer surface of the inner cavity polished shell to obtain a preliminarily formed shell; S5, using the third fixture to fix the preliminary formed shell, and processing the preliminary formed shell to form side holes to obtain a preformed shell; S6, fixing the preformed shell with a fourth fixture, and performing a high-gloss treatment and a process waste removal structural treatment on the preformed shell to obtain an intermediate molded shell; as well as S7, using a fifth fixture to fix the intermediate molded shell, and performing drilling and tapping processing on the intermediate molded shell to obtain a final molded shell; In step S2, the three first side pushers of the first clamp push the product profile sideways, and the two first rotating pressing claws press it to position the shape of the product profile in the X-axis direction and the Y-axis direction, and the first processing position positions the bottom surface of the product profile to position the product profile in the Z-axis direction.

2. The method for processing a shell according to claim 1, characterized in that: In the step S1, the shape of the blank is consistent with the outer shape of the target shell, and both ends are processed to form process clamping positions so that the product profile can be clamped and fixed in subsequent processes.

3. The method for processing a shell according to claim 2, characterized in that: In the step S2, the rough machining includes forming two first positioning holes on the process clamping position of the product profile, and forming two second positioning holes and two screw holes in the inner cavity of the product profile by rough machining to obtain the inner cavity rough shell.

4. The method for processing a housing according to claim 3, characterized in that: The two second positioning holes are diagonally arranged in the inner cavity of the inner cavity opening shell, the two screw holes are also diagonally arranged in the inner cavity of the inner cavity opening shell, and any of the second positioning holes is adjacently arranged with a screw hole.

5. The method for processing a housing according to claim 1, characterized in that: In step S2, when the product profile is clamped on the first fixture, the limiting ball heads of multiple first limiting blocks are tightly against the outer surface of the product profile, so that the product profile is tightly against the first positioning reference blocks of the first fixture respectively arranged in the X-axis and Y-axis directions, thereby ensuring that the product profile can be accurately located in the first processing position.

6. The method for processing a housing according to claim 3, characterized in that: In the fine processing of step S3, the inner cavity of the rough inner cavity shell is processed to the required size of the target shell to obtain the fine inner cavity shell.

7. The method for processing a housing according to claim 6, characterized in that: In step S3, the inner cavity roughening shell is clamped and fixed to the second fixture by using two first pins to be fixed in the two first positioning holes respectively, and using two second rotating pressure claws to press and fix the process clamping positions on both sides of the inner cavity roughening shell. The bottom surface of the inner cavity roughening shell is positioned through the second processing position.

8. The method for processing a housing according to claim 7, characterized in that: In the step S3, the side wall of the inner cavity roughening shell with a higher side is supported by the cylinder closely, so as to withstand the cutting force of the inner cavity side wall processing of the inner cavity roughening shell.

9. The method for processing a housing according to claim 8, characterized in that: In the step S4, the process clamping position and the first positioning hole are removed while processing the appearance surface.

10. The method for processing a housing according to claim 9, characterized in that: In step S4, the positioning body is locked with the inner cavity of the inner cavity precision light shell by passing two second pins and two fixing screws through the positioning body and locking them in the corresponding second positioning holes and the screw holes, and the positioning body and the inner cavity precision light shell are fixed on the third fixture base by tightening the positioning body through the fourth driving member.

11. The method for processing a housing according to claim 10, characterized in that: The method of fixing the preliminary molded shell with the third clamp in step S5 is the same as that in step S4, and in step S5, the side hole processed and formed on the preliminary molded shell is a button hole and / or a USB socket.

12. The method for processing a housing according to claim 11, characterized in that: In the step S6, the second positioning hole and the screw hole in the inner cavity of the preformed shell are removed by machining, and the opening edge of the preformed shell is subjected to highlighting and chamfering.

13. The method for processing a housing according to claim 12, characterized in that: In step S6, the outer shape of the preformed shell is fixed by lateral pushing by the second side pusher and the oblique side pusher of the fourth clamp, and the limiting ball heads of multiple second limiting blocks are tightly attached to the outer shape surface of the preformed shell, so that the preformed shell is tightly attached to the second positioning reference blocks of the fourth clamp respectively arranged in the X-axis and Y-axis directions, thereby ensuring that the preformed shell can be accurately located at the third processing position.

14. The method for processing a housing according to claim 13, characterized in that: In step S7, the intermediate molded shell is pushed laterally by the three third side pushing members of the fifth clamp, and the limiting ball heads of multiple third limiting blocks are pressed against the outer surface of the intermediate molded shell, so that the intermediate molded shell is pressed against the third positioning reference blocks of the fifth clamp respectively arranged in the X-axis and Y-axis directions, and the intermediate molded shell is clamped and positioned in the fifth clamp by the fifth driving member driving the third rotating pressing claw to press the pressing block, so that the pressing block presses the intermediate molded shell downward.

15. The method for processing a housing according to any one of claims 1 to 14, characterized in that: In step S2, step S5 and step S7, a three-axis CNC machining center is used for processing, and the first fixture, the third fixture and the fifth fixture are all located outside the three-axis CNC machining center to clamp and position the corresponding shell; in step S3, step S4 and step S6, a four-axis CNC machining center is used for processing, and the second fixture, the third fixture and the fourth fixture are all located outside the four-axis CNC machining center to clamp and position the corresponding shell.

16. The method for processing a housing according to claim 15, characterized in that: Between step S4 and step S5, the steps of performing a first cleaning and full inspection, rough grinding of the appearance surface, and a second cleaning and full inspection on the preliminary formed shell are also included; between step S5 and step S6, the steps of performing a fine grinding of the appearance surface, cleaning and full inspection, and a first anodizing treatment on the preformed shell are also included; between step S6 and step S7, the steps of performing a full inspection and a second anodizing treatment on the intermediate formed shell are also included; after step S7, the steps of cleaning and full inspection, assembling auxiliary materials, and full inspection and packaging of the final formed shell are also included.

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