A high-efficiency energy-saving voice coil motor manufacturing method and voice coil motor

Abstract

The application relates to a high-efficiency energy-saving voice coil motor manufacturing method, two kinds of plate materials are selected to cut a coil support bottom plate and a shell support bottom plate, two kinds of strip materials are selected to process a coil support pipe and a shell support pipe; one plate surface of the coil support bottom plate is processed to form a first connecting part, one end of the coil support pipe is processed to form a second connecting part, the second connecting part is matched with the first connecting part, the two parts can be tightly connected and assembled into a coil support part of the voice coil motor; one plate surface of the shell support bottom plate is processed to form a third connecting part, one end of the shell support pipe is processed to form a fourth connecting part, the third connecting part is matched with the fourth connecting part, the two parts can be tightly connected and assembled into a shell support part of the voice coil motor. The coil support part is disassembled into the coil support pipe and the coil support bottom plate for processing, only corresponding materials are selected according to the accurate dimensions of each part for processing, and the problems of large waste of materials and long processing time are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of voice coil motor production and manufacturing, in particular to a high-efficiency and energy-saving voice coil motor manufacturing method and voice coil motor. BACKGROUND

[0002] The voice coil motor of the elastic vibration structure comprises four parts: a coil support part, a shell support part, a magnet assembly and an elastic part. The coil support part and the shell support part are the motor mover and the stator. The coil support part comprises a coil support tube and a coil support bottom plate. The coil support tube is a columnar body, and one end of the coil support tube is connected to the coil support bottom plate. The shell support part comprises a shell support tube and a shell support bottom plate. The shell support tube is a columnar body, and one end of the shell support tube is connected to the shell support bottom plate.

[0003] The magnet assembly is placed in the coil support tube. The outer surface of the coil support tube is provided with a plurality of coil skeletons. The coil skeletons are used for winding the coil. The shell support tube is arranged outside the coil support tube with the wound coil. The hollow columnar elastic part is arranged outside the shell support tube. One end of the elastic part abuts against the coil support bottom plate, and the other end of the elastic part abuts against the shell support bottom plate. The assembly of the coil support part and the shell support part is completed. When the coil is supplied with alternating current, the coil is subjected to Lorentz force in the magnetic field environment generated by the magnet assembly and generates reciprocating linear motion. The coil support tube is driven by the coil skeleton, so that the coil support part moves reciprocatingly and linearly relative to the shell support part. During the movement, the elastic part between the shell support bottom plate and the coil support bottom plate is compressed and shrinks or releases the compression force and expands.

[0004] In view of the current voice coil motor production status, the coil support part and the shell support part generally adopt an integrated structure. This processing method relies on overall material processing, which wastes time and materials. Taking the coil support part as an example, a large block of raw material of a large volume is needed in the early stage. The volume must include the total volume of the coil support tube and the bottom plate to ensure that a complete coil support part can be processed. Subsequently, the excess material is gradually removed by using lathe, milling machine and other equipment until the integrated structure of the coil support tube and the coil support bottom plate is formed. This processing method requires a large block of material. From the beginning of processing to the formation of the structure, the processing time is long, and there are difficult processing difficulties at the junction of the coil support tube and the coil support bottom plate, which undoubtedly further prolongs the working hours. During the entire processing process, a large amount of redundant materials are cut off and discarded, and the material consumption is extremely serious.

[0005] It can be seen that the traditional voice coil motor processing and manufacturing method has serious resource waste problems in processing efficiency and material, resulting in high cost of voice coil motor. Therefore, there is an urgent need for a high-efficiency and energy-saving voice coil motor processing and manufacturing method to help enterprises reduce costs and enhance market competitiveness. SUMMARY

[0006] In order to overcome the existing voice coil motor processing manufacturing method, there is a serious waste of resources in processing efficiency and material, the application provides a kind of high efficiency energy-saving voice coil motor manufacturing method and voice coil motor.

[0007] The technical scheme of the application is as follows:

[0008] A kind of high efficiency energy-saving voice coil motor manufacturing method, two kinds of plate type material are selected to cut coil support bottom plate and shell support bottom plate, two kinds of strip material are selected to process coil support tube and shell support tube;Process the plate face of the coil support bottom plate to form the first connecting part, process the one end of the coil support tube to form the second connecting part, and the second connecting part is adapted with the first connecting part, and the two can be tightly connected and assembled into the coil support part of voice coil motor;Process the plate face of the shell support bottom plate to form the third connecting part, process the one end of the shell support tube to form the fourth connecting part, and the third connecting part is adapted with the fourth connecting part, and the two can be tightly connected and assembled into the shell support part of voice coil motor.

[0009] As a preferred technical scheme of the application, the step of selecting two kinds of plate type material to cut coil support bottom plate and shell support bottom plate specifically includes:

[0010] Get plate type material with size specification greater than target plate size, set the length, width and thickness required for coil support bottom plate and shell support bottom plate according to the design parameters of voice coil motor, and cut small plates meeting size requirements from corresponding plate type material along the cutting route using cutting equipment, to be used as coil support bottom plate and shell support bottom plate.

[0011] As a preferred technical scheme of the application, the step of selecting two kinds of strip material to process coil support tube and shell support tube specifically includes:

[0012] Get strip material with size specification greater than target cylinder size, the strip material is hollow or solid, process the shape of the strip material, specifically including processing the outer diameter of the strip material, and processing the coil skeleton of the strip material used as coil support tube;According to the length required for coil support tube and shell support tube, cut the corresponding strip material processed initially into small sections meeting size requirements, to be used as coil support tube and shell support tube.

[0013] As a preferred technical scheme of the application, the material of the plate type material of the coil support bottom plate is aluminum, and the material of the plate type material of the shell support bottom plate is steel or iron;The material of the strip material of the coil support tube is aluminum, and the material of the strip material of the shell support tube is steel or iron.

[0014] As a preferred technical solution of the present application, the first connecting part is a circular groove with a first inner diameter, and the second connecting part is a coil column end head with a first outer diameter, the first inner diameter and the first outer diameter are in interference fit or transition fit, so that the coil column end head of the coil support pipe is tightly inserted into the circular groove of the coil support bottom plate.

[0015] Further, the step of processing one plate surface of the coil support bottom plate to form the first connecting part, processing one end of the coil support pipe to form the second connecting part, and adapting the second connecting part with the first connecting part, specifically includes:

[0016] The preliminarily processed coil support bottom plate is installed on a processing platform, a milling cutter with a suitable diameter is used, a circular groove with a first inner diameter is processed at the center position of one plate surface of the coil support bottom plate by means of step-by-step milling, and the circular groove is used as the first connecting part.

[0017] The preliminarily processed coil support pipe is installed on a processing platform, and the end of the coil support pipe is processed to have a coil column end head with a first outer diameter, which is used as the second connecting part.

[0018] As a preferred technical solution of the present application, the first connecting part is a circular groove with a first inner diameter, and the second connecting part is a coil column end head with a first outer diameter, the first inner diameter and the first outer diameter are in interference fit or transition fit, so that the coil column end head of the coil support pipe is tightly inserted into the circular groove of the coil support bottom plate.

[0019] Further, the step of processing one plate surface of the coil support bottom plate to form the first connecting part, processing one end of the coil support pipe to form the second connecting part, and adapting the second connecting part with the first connecting part, specifically includes:

[0020] The preliminarily processed coil support bottom plate is installed on a processing platform, a milling cutter with a suitable diameter is used, a circular groove with a first inner diameter is processed at the center position of one plate surface of the coil support bottom plate by means of step-by-step milling, and the circular groove is used as the first connecting part.

[0021] The preliminarily processed coil support pipe is installed on a processing platform, a milling cutter with a suitable diameter is used, a circular groove with a first inner diameter is processed at the center position of one plate surface of the coil support bottom plate by means of step-by-step milling, and the circular groove is used as the first connecting part.

[0022] As a preferred technical solution of the present application, the third connecting part is a circular groove with a third inner diameter, and the fourth connecting part is a shell cylinder end head with a third outer diameter, the third inner diameter and the third outer diameter are in interference fit or transition fit, so that the shell cylinder end head of the shell support pipe is tightly inserted into the circular groove of the shell support bottom plate.

[0023] Further, one plate surface of the shell support bottom plate is processed to form the third connecting part, one end of the shell support pipe is processed to form the fourth connecting part, and the step of adapting the third connecting part and the fourth connecting part comprises:

[0024] The preliminarily processed shell support bottom plate is installed on a machining platform, a milling cutter with a suitable diameter is used, and a circular groove with a third inner diameter is processed in the center position of one plate surface of the shell support bottom plate by means of step-by-step milling, so as to serve as the third connecting part.

[0025] The preliminarily processed shell support pipe is installed on a machining platform, and the end of the shell support pipe is processed to have a shell cylinder end head with a third outer diameter, so as to serve as the fourth connecting part.

[0026] As a preferred technical solution of the present application, the third connecting part is a circular groove with a third inner diameter, and the fourth connecting part is a shell cylinder end head with a third outer diameter, the third inner diameter and the third outer diameter are in interference fit or transition fit, so that the shell cylinder end head of the shell support pipe is tightly inserted into the circular groove of the shell support bottom plate.

[0027] Further, one plate surface of the shell support bottom plate is processed to form the third connecting part, one end of the shell support pipe is processed to form the fourth connecting part, and the step of adapting the third connecting part and the fourth connecting part comprises:

[0028] The preliminarily processed shell support bottom plate is installed on a machining platform, a milling cutter with a suitable diameter is used, and a circular groove with a third inner diameter is processed in the center position of one plate surface of the shell support bottom plate by means of step-by-step milling, so as to serve as the third connecting part.

[0029] The preliminarily processed shell support pipe is installed on a machining platform, a milling cutter with a suitable diameter is used, and a circular groove with a third inner diameter is processed in the center position of one plate surface of the shell support bottom plate by means of step-by-step milling, so as to serve as the third connecting part.

[0030] The application further provides a voice coil motor, comprising a coil support part, a shell support part and a magnet assembly, the coil support part and the shell support part are made by the high-efficiency energy-saving voice coil motor manufacturing method, and the coil support part comprises a coil support pipe and a coil support bottom plate which are tightly assembled and connected, and the shell support part comprises a shell support pipe and a shell support bottom plate which are tightly assembled and connected.

[0031] The application according to the above scheme has the following beneficial effects:

[0032] 1. The coil support part is disassembled into a coil support pipe and a coil support bottom plate for separate processing, and the shell support part is also disassembled into a shell support pipe and a shell support bottom plate for separate processing, so that only corresponding materials are selected according to the accurate dimensions of each part for processing, the problem of a large amount of excess material loss is solved, and the raw material consumption of the application can be saved by about 80% compared with the traditional integrated structure processing method.

[0033] 2. After the coil support part and the shell support part are processed separately, the coil support pipe, the coil support bottom plate, the shell support pipe and the shell support bottom plate can be processed simultaneously on different machine tools, while the complex overall component processing procedure of the traditional integrated processing method can only be performed sequentially, and the fine processing of the connection part is extremely time-consuming; therefore, the parallel operation of the method of the application greatly shortens the processing procedure, and the overall processing time can be shortened by at most 60% compared with the traditional method, and the production efficiency is significantly improved.

[0034] 3. The coil support part and the shell support part are processed separately, so that each processing part is simple in shape and independent in procedure, while the complex shape and continuous procedure of the traditional integrated processing method require high skills of workers and high precision of equipment, and any slight difference will produce defective products; therefore, the method of the application only requires ordinary workers to be trained simply, and the requirement for equipment precision is also reduced, and the defective product rate is reduced from 8% to 12% to 3% to 5%, which effectively guarantees the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a structural schematic view of a voice coil motor without assembling an elastic part;

[0036] Figure 2 It is a structural exploded view of the first embodiment of the application;

[0037] Figure 3 It is a front view of the first embodiment of the application;

[0038] Figure 4 It is a structural exploded view of the second embodiment of the application;

[0039] Figure 5 It is a front view of the second embodiment of the application;

[0040] Figure 6 Fig. 3 is a front view of the embodiment 3 of the present application;

[0041] Figure 7 Fig. 4 is a front view of the embodiment 4 of the present application;

[0042] Figure 8 Fig. 5 is a flow chart of the method of the present application.

[0043] In the figures, 1, coil support part; 11, coil support tube; 111, coil skeleton; 12, coil support bottom plate;

[0044] 2, housing support part; 21, housing support tube; 22, housing support bottom plate;

[0045] 3, magnet assembly;

[0046] 100, circular groove; 200, circular boss. DETAILED DESCRIPTION

[0047] In order to better understand the purpose, technical solution and technical effects of the present application, the present application will be further explained in the following with reference to the accompanying drawings and embodiments. It should be noted that similar reference numerals and letters represent similar items in the following drawings, thus, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. Meanwhile, it is declared that the following described embodiments are only for explaining the present application, and do not limit the present application.

[0048] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there can be a middle element, and when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be a middle element.

[0049] The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when used, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship in which the product of the application is usually placed when used, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0050] The terms "first", "second", "third", "fourth" are only for the purpose of convenient description, and cannot be understood as indicating or implying relative importance or implying the number of technical features. The meaning of "several" is two or more, unless specifically and specifically limited.

[0051] Embodiment one

[0052] As Figures 1 to 3 , Figure 8 indicated, a high-efficiency energy-saving voice coil motor manufacturing method, two kinds of plate-shaped materials are selected to cut the coil support bottom plate 12 and the shell support bottom plate 22, and two kinds of strip-shaped materials are selected to process the coil support pipe 11 and the shell support pipe 21; one plate surface of the coil support bottom plate 12 is processed to form a first connecting part, one end of the coil support pipe 11 is processed to form a second connecting part, and the second connecting part is matched with the first connecting part, and the two can be tightly connected and assembled into the coil support part 1 of the voice coil motor; one plate surface of the shell support bottom plate 22 is processed to form a third connecting part, one end of the shell support pipe 21 is processed to form a fourth connecting part, and the third connecting part is matched with the fourth connecting part, and the two can be tightly connected and assembled into the shell support part 2 of the voice coil motor. Among them, the material of the plate-shaped material of the coil support bottom plate 12 is aluminum, the material of the plate-shaped material of the shell support bottom plate 22 is steel or iron; the material of the strip-shaped material of the coil support pipe 11 is aluminum, and the material of the strip-shaped material of the shell support pipe 21 is steel or iron.

[0053] The material consumption of the present scheme compared with the material consumption of the traditional integrated processing is as follows:

[0054]

[0055] Through the table, it is calculated that:

[0056] 1. The total material consumption of the coil support part of the present scheme before processing is 33.28g, and the material consumption during processing is 21.38g; the material consumption during processing of the coil support part of the existing processing method is 93.3-12.1=81.2g. The material consumption of the coil support part can be saved by 73.7%.

[0057] 2. The total material consumption of the shell support part of the present scheme before processing is 96.8g, and the material consumption during processing is 64.9g; the material consumption during processing of the shell support part of the existing processing method is 359-35.2=323.8g; the material consumption of the shell support part can be saved by 79.9%.

[0058] The coil support part 1 is disassembled into a coil support pipe 11 and a coil support bottom plate 12 for processing respectively, and the shell support part 2 is also disassembled into a shell support pipe 21 and a shell support bottom plate 22 for processing respectively, only the corresponding materials are selected according to the accurate size of each part, the problem of a large amount of excess material loss is solved, further, after the coil support part 1 and the shell support part 2 are processed separately, the coil support pipe 11, the coil support bottom plate 12, the shell support pipe 21 and the shell support bottom plate 22 can be processed at the same time on different machine tools, parallel operation greatly shortens the processing flow, further, the coil support part 1 and the shell support part 2 are processed separately, each processing part is simple and regular in shape, the process is independent, ordinary workers can operate after simple training, the requirement for equipment precision is also reduced, and the product quality is effectively ensured.

[0059] In the embodiment, the step of cutting the coil support bottom plate 12 and the shell support bottom plate 22 from the two types of plate materials respectively specifically includes the following steps.

[0060] In the embodiment, the step of cutting the coil support bottom plate 12 and the shell support bottom plate 22 from the two types of plate materials respectively specifically includes the following steps.

[0061] In the embodiment, the step of cutting the coil support bottom plate 12 and the shell support bottom plate 22 from the two types of plate materials respectively specifically includes the following steps.

[0062] In the embodiment, the step of cutting the coil support bottom plate 12 and the shell support bottom plate 22 from the two types of plate materials respectively specifically includes the following steps.

[0063] The specific steps of processing the coil former 111 on the outer surface of the strip-shaped material are as follows: the strip-shaped material with finished outer diameter is removed from the lathe chuck, fixed on the workbench of the numerical control milling machine, and ensured to be stably clamped and accurately positioned. According to the design requirements, the relevant parameters of the coil former 111 are input into the control system of the numerical control milling machine, including the number, spacing, width and depth of the C-shaped rings and other specific size information. The numerical control milling machine is started, and a milling cutter with a suitable diameter is selected. The milling cutter is first moved to the starting processing position of the coil support pipe 11 column surface. For the first C-shaped ring, the milling cutter is cut into the column surface along the preset path, and is gradually milled in a way of surrounding the column body. The feed speed and rotational speed of the milling cutter are accurately controlled to ensure uniform and consistent milling depth, so as to process the one-side groove of the C-shaped ring. Then, the milling cutter is turned according to the predetermined route to mill the other-side groove of the C-shaped ring, until the first C-shaped ring is completely formed. At this time, the coil support pipe 11 is divided into two sections. The above-mentioned operation process is repeated, and the remaining C-shaped rings are sequentially processed on the column surface according to the set parameters, until the coil former 111 on the coil support pipe 11 is completed.

[0064] In the embodiment, the first connecting part on the coil support base plate 12 is a circular groove 100 with a first inner diameter, and the second connecting part on the coil support pipe 11 is a coil column end with a first outer diameter. The first inner diameter and the first outer diameter are in interference fit or transition fit, so that the coil column end of the coil support pipe 11 is tightly inserted into the circular groove 100 of the coil support base plate 12. The third connecting part on the shell support base plate 22 is a circular groove 100 with a third inner diameter, and the fourth connecting part on the shell support pipe 21 is a shell column end with a third outer diameter. The third inner diameter and the third outer diameter are in interference fit or transition fit, so that the shell column end of the shell support pipe 21 is tightly inserted into the circular groove 100 of the shell support base plate 22.

[0065] The steps of processing one surface of the coil support base plate 12 to form the first connecting part and processing one end of the coil support pipe 11 to form the second connecting part specifically include:

[0066] Step A1. The preliminarily processed coil support base plate 12 is installed on the processing platform, and a milling cutter with a suitable diameter is used on the numerical control milling machine to process a circular groove 100 with a first inner diameter at the center position of one surface of the coil support base plate 12 by gradually milling, so as to serve as the first connecting part. During the milling process, the feed amount and rotational speed of the milling cutter are strictly controlled to ensure the flatness and size accuracy of the inner wall of the circular groove 100.

[0067] Step B1. Install the coil support tube preliminarily processed into small sections on the machining platform, select a suitable milling cutter to process the end of the coil support tube to have a coil cylinder end head with a first outer diameter, which serves as the second connecting part. During processing, closely monitor the outer diameter size, and adjust the cutting parameters in real time to ensure that the outer diameter size of the end head is accurate and correct, and meets the requirements of interference fit or transition fit with the circular groove 100.

[0068] The step of processing one plate surface of the shell support bottom plate 22 to form a third connecting part and processing one end of the shell support tube 21 to form a fourth connecting part, has the following steps:

[0069] Step C1. Install the preliminarily processed shell support bottom plate 22 on the machining platform, use a numerical control milling machine with a suitable diameter milling cutter to process a circular groove 100 with a third inner diameter at the center position of one plate surface of the shell support bottom plate 22 by gradually milling, which serves as the third connecting part.

[0070] Step D1. Install the preliminarily processed shell support tube 21 into small sections on the machining platform, select a suitable milling cutter to process the end of the shell support tube to have a shell cylinder end head with a third outer diameter, which serves as the fourth connecting part.

[0071] Step E. Use the jacking assembly machine to tightly assemble the coil support tube and the coil support bottom plate, and the shell support tube and the shell support bottom plate;

[0072] The jacking assembly machine is provided with a base to be tracked, the end of the base is provided with an abutting seat and a jacking seat sliding along the track, the jacking seat is controlled by a driving member, which can be a hand-operated screw rod, a pneumatic cylinder or an oil cylinder, and the driving member is used to push the jacking seat close to the abutting seat to tightly fit the support tube (coil support tube or shell support tube) and the bottom plate (coil support bottom plate or shell support bottom plate) located between the jacking seat and the abutting seat. During specific operation, place the processed bottom plate on the side of the abutting seat with the plate surface where the corresponding connecting part (circular groove or circular boss) facing outward, hold the processed support tube in hand, accurately align the connecting part (cylinder end head adapted to the circular groove or cylinder end head adapted to the circular boss) of the support tube with the connecting part of the bottom plate, and place it lightly above the bottom plate to prepare for subsequent tight assembly. Start the driving member of the jacking mechanism to push the jacking seat forward, when the jacking seat contacts the support tube, slow down the driving speed, and continuously apply stable and uniform jacking force to gradually tightly fit the two connecting parts of the support tube and the bottom plate.

[0073] Step F. Detect the perpendicularity of the assembled bottom plate and support tube;

[0074] Detect the perpendicularity of the bottom plate and the support tube by using a right-angle ruler and a plug gauge, which includes the following detection steps:

[0075] Step F1. One side of the ruler is close to the surface of the base plate, and the other side is slowly close to the support pipe;

[0076] Step F2. Observe the gap between the ruler and the column, and insert the plug ruler of appropriate thickness into the gap, and read the gap value displayed by the plug ruler;

[0077] Step F3. Repeat step F2 around the support pipe, record the measurement values at different positions, and take the maximum value as the perpendicularity deviation, denoted as Δ1=0.15mm.

[0078] In order to verify that the base plate and support pipe assembly structure of the present scheme has better perpendicularity, two control examples are additionally set.

[0079] Control example one

[0080] The connecting part of the base plate is a plurality of first screw holes, and the connecting part of the support pipe is a plurality of second screw holes. A plurality of bolts are inserted into the corresponding first screw holes and second screw holes to realize the fastening connection between the base plate and the support pipe. Then, the above step F is used to detect the perpendicularity of the assembled base plate and support pipe, and the perpendicularity deviation is obtained, denoted as Δ2=0.45mm.

[0081] Control example two

[0082] The surface of the base plate is a plane structure, and only the center position is marked with a column installation position. The end of the support pipe is fastened and connected with the base plate by welding. Similarly, the above step F is used to detect the perpendicularity of the assembled base plate and support pipe, and the perpendicularity deviation is obtained, denoted as Δ3=0.6mm.

[0083] Finally, by comparing the perpendicularity deviations Δ1, Δ2 and Δ3 of the present example, control example one and control example two, it can be known that the perpendicularity of the assembled base plate and support pipe of the present example is the best. Through research, it is found that in control example two, due to the influence of factors such as screw hole machining precision and uneven tightening force of bolts during assembly, the support pipe and the base plate are easy to appear slight misalignment. In control example three, the uneven release of thermal stress during welding causes the deformation of the base plate and the support pipe. Even with the center mark for auxiliary positioning, it is still difficult to accurately ensure the perpendicular relationship. Therefore, it is proved that the base plate and support pipe assembly structure of the present example has better perpendicularity.

[0084] The application provides a voice coil motor, comprising a coil support part 1, a shell support part 2 and a magnet assembly 3, the coil support part 1 and the shell support part 2 are made by the above-mentioned high-efficiency energy-saving voice coil motor manufacturing method, and the coil support part 1 comprises a coil support pipe 11 and a coil support bottom plate 12 which are tightly assembled and connected, and the shell support part 2 comprises a shell support pipe 21 and a shell support bottom plate 22 which are tightly assembled and connected. The coil support pipe 11 and the coil support bottom plate 12 are made of aluminum material, and the shell support pipe 21 and the shell support bottom plate 22 are made of steel or iron material.

[0085] When the coil support part 1 and the shell support part 2 are assembled respectively, the magnet assembly 3 is put into the coil support pipe 11, and the coil is wound on the coil skeleton 111. The coil skeleton 111 is one or more C-shaped rings arranged on the cylindrical surface of the coil support pipe 11, and the C-shaped ring is obtained by processing the cylindrical surface of the coil support pipe 11 by means of a numerical control milling machine. One C-shaped ring divides the coil support pipe into a two-section structure. In optional embodiments, the cylindrical surface of the coil support pipe 11 has one C-shaped ring, two C-shaped rings or three C-shaped rings, so that one coil support pipe corresponds to a two-section structure, a three-section structure or a four-section structure, etc.

[0086] Then, the shell support pipe is sleeved outside the coil support pipe on which the coil is wound, and finally, an elastic part (not shown in the figure) is sleeved, one end of the elastic part abuts against the coil support bottom plate, and the other end of the elastic part abuts against the shell support bottom plate. In this way, the assembly of the complete voice coil motor is completed.

[0087] Embodiment two

[0088] As shown in Figure 4 and Figure 5 , a high-efficiency energy-saving voice coil motor manufacturing method, which is the same as embodiment one, the coil support part 1 and the shell support part 2 are separately processed, and the difference lies in that the first connecting part on the coil support bottom plate 12 is a circular boss 200 with a second outer diameter, the second connecting part on the coil support pipe 11 is a coil cylinder end head with a second inner diameter, the second outer diameter and the second inner diameter are in interference fit or transition fit, so that the circular boss 200 of the coil support bottom plate 12 is tightly inserted into the coil cylinder end head of the coil support pipe 11. The third connecting part on the shell support bottom plate 22 is a circular boss 200 with a fourth outer diameter, and the fourth connecting part on the shell support pipe 21 is a shell cylinder end head with a fourth inner diameter, the fourth outer diameter and the fourth inner diameter are in interference fit or transition fit, so that the circular boss 200 of the shell support bottom plate 22 is tightly inserted into the shell cylinder end head of the shell support pipe 21.

[0089] The steps of processing one plate surface of the coil support bottom plate 12 to form the first connecting part and processing one end of the coil support pipe 11 to form the second connecting part specifically include:

[0090] Step A2. The preliminary processing of the coil support base plate 12 is installed on the processing platform, first select the rough milling cutter, according to the planned outline of the circular boss 200, with the specified center of the plate of the coil support base plate 12 as the center, set the initial cutting radius and the feeding path, gradually mill away the excess material from the outside to the inside, to quickly remove the excess, to preliminarily outline the disc embryo; then replace the fine milling cutter, reduce the feed speed, make circular motion around the center, fine milling of the edge of the disc, until the circular boss 200 with the second outer diameter is processed; throughout the whole milling process, strictly control the speed of the cutter, the feed rate, accurately control the cutting depth, so as to ensure the flatness and roundness of the circular boss 200, so that the outer diameter size precision is controlled within a very small tolerance range.

[0091] Step B2. The coil support tube processed into small segments is installed on the processing platform, and a suitable boring cutter is selected to process the inner diameter of the solid tube, so that the coil cylinder end has a second inner diameter. During processing, pay attention to the change of the inner diameter size at all times, dynamically adjust the cutting parameters, so that the inner diameter of the coil cylinder end is accurate and correct, and the second outer diameter of the circular boss 200 is achieved. The interference fit or transition fit is formed.

[0092] The step of processing one plate surface of the shell support base plate 22 to form a third connecting part and processing one end of the shell support tube 21 to form a fourth connecting part, and the step of adapting the third connecting part and the fourth connecting part, comprise:

[0093] Step C2. The preliminary processing of the shell support base plate 22 is installed on the processing platform, first select the rough milling cutter, according to the planned outline of the circular boss 200, with the specified center of the plate of the shell support base plate 22 as the center, set the initial cutting radius and the feeding path, gradually mill away the excess material from the outside to the inside, to quickly remove the excess, to preliminarily outline the disc embryo; then replace the fine milling cutter, reduce the feed speed, make circular motion around the center, fine milling of the edge of the disc, until the circular boss 200 with the fourth outer diameter is processed.

[0094] Step D2. The shell support tube processed into small segments is installed on the processing platform, and a suitable boring cutter is selected to process the inner diameter of the solid tube, so that the shell cylinder end has a fourth inner diameter. During processing, pay attention to the change of the inner diameter size at all times, dynamically adjust the cutting parameters, so that the inner diameter of the shell cylinder end is accurate and correct, and the fourth outer diameter of the circular boss 200 is achieved. The interference fit or transition fit is formed.

[0095] Finally, the steps E and F of the first embodiment are performed to complete the assembly of the voice coil motor, and the specific process is not described again.

[0096] Example Three

[0097] As Figure 6As shown, a method for manufacturing a high-efficiency and energy-saving voice coil motor is described. This method is the same as that in Embodiment 1, where the coil support part 1 and the outer shell support part 2 are processed separately. The difference is that: the first connecting part on the coil support base plate 12 is a circular groove 100 with a first inner diameter, and the second connecting part on the coil support tube 11 is a coil column end with a first outer diameter; the third connecting part on the outer shell support base plate 22 is a circular boss 200 with a fourth outer diameter, and the fourth connecting part on the outer shell support tube 21 is an outer shell column end with a fourth inner diameter.

[0098] Example 4

[0099] like Figure 7 As shown, a method for manufacturing a high-efficiency and energy-saving voice coil motor is described. This method is the same as that in Embodiment 1, where the coil support part 1 and the outer shell support part 2 are processed separately. The difference is that: the first connecting part on the coil support base plate 12 is a circular boss 200 with a second outer diameter, and the second connecting part on the coil support tube 11 is a coil column end with a second inner diameter; the third connecting part on the outer shell support base plate 22 is a circular groove 100 with a third inner diameter, and the fourth connecting part on the outer shell support tube 21 is an outer shell column end with a third outer diameter.

[0100] In summary, this invention provides a highly efficient and energy-saving method for manufacturing voice coil motors. Breaking away from the traditional integrated structure processing model, it uses two types of sheet materials to process the coil support base plate 12 and the outer shell support base plate 22, and two types of strip materials to process the coil support tube 11 and the outer shell support tube 21. By processing the corresponding connecting parts of each component, adaptation and fastening assembly are achieved, forming the coil support part 1 and the outer shell support part 2. This solves the problems of excessive material loss and resource waste. Parallel operation is possible, greatly shortening the processing flow and improving production efficiency. Each processed component has a simple, regular shape, allowing ordinary workers to learn quickly with minimal training, thus improving the yield rate.

[0101] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0102] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A method for manufacturing a high efficiency and energy saving voice coil motor, characterized in that, Two kinds of plate materials are selected to cut the coil support bottom plate and the shell support bottom plate respectively, and two kinds of strip materials are selected to process the coil support pipe and the shell support pipe respectively; One plate surface of the coil support bottom plate is processed to form a first connecting part, one end of the coil support pipe is processed to form a second connecting part, and the second connecting part is matched with the first connecting part, the two can be tightly connected and assembled into a coil support part of a voice coil motor; One plate surface of the shell support bottom plate is processed to form a third connecting part, one end of the shell support pipe is processed to form a fourth connecting part, and the third connecting part is matched with the fourth connecting part, the two can be tightly connected and assembled into a shell support part of a voice coil motor; The first connecting part is a circular groove with a first inner diameter, the second connecting part is a coil column end with a first outer diameter, the first inner diameter and the first outer diameter are interference fit or transition fit, so that the coil column end of the coil support pipe is tightly inserted into the circular groove of the coil support bottom plate; or The first connecting part is a circular boss with a second outer diameter, the second connecting part is a coil column end with a second inner diameter, the second outer diameter and the second inner diameter are interference fit or transition fit, so that the circular boss of the coil support bottom plate is tightly inserted into the coil column end of the coil support pipe.

2. The method of claim 1, wherein the voice coil motor is manufactured with high efficiency and energy saving. The step of selecting two kinds of plate materials to cut the coil support bottom plate and the shell support bottom plate respectively, specifically includes: Obtaining plate materials with a size larger than the target plate size, setting the length, width and thickness required for the coil support bottom plate and the shell support bottom plate according to the design parameters of the voice coil motor, and cutting small plates that meet the size requirements from the corresponding plate materials along the cutting route using cutting equipment, which are used as the coil support bottom plate and the shell support bottom plate.

3. The method of claim 1, wherein the voice coil motor is manufactured with high efficiency and energy saving. The step of selecting two kinds of strip materials to process the coil support pipe and the shell support pipe respectively, specifically includes: Obtaining strip materials with a size larger than the target column size, the strip materials being hollow or solid, and processing the outer shape of the strip materials, specifically including processing the outer diameter of the strip materials and processing the coil skeleton of the strip materials used as the coil support pipe; According to the length required for the coil support pipe and the shell support pipe, cutting the corresponding strip materials that have been preliminarily processed into small sections that meet the size requirements, which are used as the coil support pipe and the shell support pipe.

4. The method of making a high efficiency, energy saving voice coil motor of any one of claims 1 to 3, wherein, The material of the plate material of the coil support bottom plate is aluminum, the material of the plate material of the shell support bottom plate is steel or iron; the material of the strip material of the coil support pipe is aluminum, and the material of the strip material of the shell support pipe is steel or iron.

5. The method of claim 1, wherein the voice coil motor is manufactured with high efficiency and energy saving. The step of processing one plate surface of the coil support bottom plate to form a first connecting part, and processing one end of the coil support pipe to form a second connecting part, and the second connecting part being matched with the first connecting part, specifically includes: The preliminarily processed coil support bottom plate is installed on a machining platform, a milling cutter with a suitable diameter is used on a numerical control milling machine, and a circular groove with a first inner diameter is processed at the center position of one plate surface of the coil support bottom plate by gradually milling, which is used as the first connecting part; The coil support tube preliminarily processed into small sections is installed on a machining platform, and the end of the coil support tube is machined to have a coil column end head with a first outer diameter as the second connecting part.

6. The method of claim 1, wherein the voice coil motor is manufactured with high efficiency and energy saving. The step of machining one plate surface of the coil support base plate to form a first connecting part and machining one end of the coil support tube to form a second connecting part which is adapted to the first connecting part specifically includes: The preliminarily processed coil support base plate is installed on a machining platform, a rough milling cutter is first selected, and based on the general outline of the circular boss, the center of the specified plate surface of the coil support base plate is taken as the center, the initial cutting radius and the feeding path are set, and the excess material is gradually milled from the outside to the inside to quickly remove the excess amount and preliminarily outline the disc shape; then a fine milling cutter is replaced, the feeding speed is reduced, and the edge of the disc is finely milled around the center to process the circular boss with the second outer diameter; The coil support tube preliminarily processed into small sections is installed on a machining platform, and a suitable boring cutter is selected to machine the inner diameter of the solid tube to have a coil column end head with a second inner diameter.

7. The method of claim 1, wherein the voice coil motor is manufactured with high efficiency and energy saving. The third connecting part is a circular groove with a third inner diameter, the fourth connecting part is a shell column end head with a third outer diameter, and the third inner diameter and the third outer diameter are in interference fit or transition fit, so that the shell column end head of the shell support tube is tightly inserted into the circular groove of the shell support base plate; Alternatively, The third connecting part is a circular boss with a fourth outer diameter, the fourth connecting part is a shell column end head with a fourth inner diameter, and the fourth outer diameter and the fourth inner diameter are in interference fit or transition fit, so that the circular boss of the shell support base plate is tightly inserted into the shell column end head of the shell support tube.

8. A voice coil motor comprising a coil holder portion, a housing holder portion, and a magnet assembly, characterized by, The coil support part and the shell support part are made by the high-efficiency energy-saving voice coil motor manufacturing method according to any one of claims 1 to 7, and the coil support part includes a coil support tube and a coil support base plate which are tightly assembled and connected, and the shell support part includes a shell support tube and a shell support base plate which are tightly assembled and connected.

Images