An array voice coil motor assembly process

Abstract

An array voice coil motor assembly process, the array voice coil motor includes a magnet assembly, a coil assembly and a guide rail assembly; comprising the steps: according to the width size constraint relationship of the array voice coil motor, the yoke, the bottom fixed plate and the top fixed plate are assembled, and the edge permanent magnet and the middle permanent magnet are assembled according to the preset magnet mounting mode; the coil assembly is assembled to form the mover assembly of the array voice coil motor; according to the height size constraint relationship of the array voice coil motor, the guide rail is assembled on the guide rail support, and the guide rail support after assembling the guide rail is assembled on the fixed base frame, the top of each guide rail support after assembling is at the same horizontal height relative to the fixed base frame; the mover assembly is installed on the guide rail assembly, and the guide rail assembly after installing the mover assembly is put into the stator assembly, and the assembly of the array voice coil motor is completed. The assembly process not only can prevent the irreversible demagnetization of the magnet, but also can ensure that the assembled array voice coil motor meets the size requirements.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of array voice coil motor, and particularly relates to an array voice coil motor assembling process. BACKGROUND

[0002] The stator of the array voice coil motor is composed of many pieces of strong magnetic permanent magnet, and the assembling method is very high, if the assembling method is improper, irreversible demagnetization of the magnet may occur, and the magnetic performance of the motor output may be reduced. Since the size of the array voice coil motor is strictly required in the application of the array voice coil motor in the photoetching machine, and the size of the assembled array voice coil motor often does not meet the requirements of the photoetching machine in the current array voice coil motor assembling process, the reason is that the incorrect assembling method of the array voice coil motor is generated. Whether the magnetic performance of the array voice coil motor or the size of the array voice coil motor, the assembling process can directly cause irreversible influence, based on this, it is necessary to propose a new assembling process, through the assembling process, irreversible demagnetization of the magnet can be prevented, and the size of the array voice coil motor can meet the requirements of the photoetching machine. SUMMARY

[0003] In view of the problems of irreversible demagnetization of the magnet and change of the overall size after the assembling in the array voice coil motor assembling process, the present application provides an array voice coil motor assembling process, which aims to solve the problems of irreversible demagnetization of the array voice coil motor and change of the overall size.

[0004] The technical scheme of the present application is as follows:

[0005] The present application provides an array voice coil motor assembling process, the array voice coil motor comprises a magnet assembly, a coil assembly and a guide rail assembly; the magnet assembly comprises a magnetic yoke, a top fixed plate, a bottom fixed plate, an edge permanent magnet and a plurality of intermediate permanent magnets; the guide rail assembly comprises a fixed base frame, a plurality of guide rails and a guide rail support; the array voice coil motor assembling process comprises the following steps:

[0006] Assembling the magnet assembly to form the stator assembly of the array voice coil motor: assembling the magnetic yoke, the bottom fixed plate and the top fixed plate according to the width size constraint relationship of the array voice coil motor, and assembling the edge permanent magnet and the intermediate permanent magnet according to the preset magnet mounting mode, so that the assembled magnet assembly meets the width size constraint relationship, and irreversible demagnetization of the magnet is prevented during the assembling process;

[0007] Assembling the coil assembly to form the rotor assembly of the array voice coil motor;

[0008] Assembling the guide rail assembly: according to the height size constraint relationship of the array voice coil motor, the guide rail is assembled on the guide rail support, and the guide rail support after assembling the guide rail is assembled on the fixed base frame, and the top of each guide rail support after assembling is at the same height relative to the fixed base frame;

[0009] Installing the mover assembly on the guide rail assembly, and placing the guide rail assembly with the installed mover assembly into the stator assembly to complete the assembly of the array voice coil motor.

[0010] Further preferably, assembling the magnetic yoke, the bottom fixed plate and the top fixed plate according to the width size constraint relationship of the array voice coil motor specifically includes the steps of:

[0011] Fixing the bottom fixed plate between the two magnetic yoke bottoms, and the distance between the two magnetic yoke bottoms satisfies the width size constraint relationship;

[0012] Positioning the top fixed plate between the two magnetic yoke tops, and setting a spacer between the top fixed plate and the two magnetic yoke tops, so that the distance between the two magnetic yoke tops is greater than the distance between the two magnetic yoke bottoms, to increase the space allowance for the position deviation of the two magnetic yoke tops during the assembly of the middle permanent magnet.

[0013] Further preferably, the top fixed plate and the bottom fixed plate are respectively provided with a magnet limiting groove with two open ends, and the top fixed plate and the bottom fixed plate are respectively provided with an open groove for inserting the magnetic separation sheet on the left and right sides of the magnet limiting groove; assembling the edge permanent magnet and the middle permanent magnet according to the preset magnet installation mode specifically includes the steps of:

[0014] For the assembly of each sequence of magnets, the edge permanent magnet is first assembled to the inner side of the magnetic yoke, then the magnetic separation sheet is inserted into the open groove on the left and right sides of the magnet limiting groove, and then the middle permanent magnet is assembled from the side between the two magnetic separation sheets in the magnet limiting groove.

[0015] Further preferably, it further includes the steps of: removing the magnetic separation sheet and the spacer, detecting the flatness of the installation surface of the bottom fixed plate and the top fixed plate, and fixing the top fixed plate between the two magnetic yoke tops after the flatness of the installation surface of the bottom fixed plate and the top fixed plate meets the preset condition.

[0016] Further preferably, the magnet limiting groove is in a V-shaped structure.

[0017] Further preferably, assembling the guide rail assembly: according to the height size constraint relationship of the array voice coil motor, the guide rail is assembled on the guide rail support, and the guide rail support after assembling the guide rail is assembled on the fixed base frame, and the top of each guide rail support after assembling is at the same height relative to the fixed base frame, specifically including the steps of:

[0018] Assembling guide rail and guide rail support: using the first set of tooling base plate and fixed base to assemble the guide rail on the guide rail support, and constrain the up and down movement and left and right movement of the guide rail relative to the guide rail support during the assembly process;

[0019] After the guide rail is assembled, the guide rail support is disassembled from the first set of tooling base plate and fixed base, and the guide rail support carrying the guide rail is assembled on the second set of fixed base using the second set of tooling base plate and fixed base;

[0020] Detecting the flatness of the top end face of the assembled guide rail support on the second set of fixed base, so that the top end face of each assembled guide rail support is at the same height relative to the fixed base.

[0021] Further preferably, the flatness deviation of the top end face of each assembled guide rail support is less than or equal to 0.08mm.

[0022] According to the array voice coil motor assembly process of the above embodiment, at least the following effects are achieved:

[0023] 1) Assemble the yoke, bottom fixed plate and top fixed plate according to the width size constraint relationship of the array voice coil motor, assemble the guide rail on the guide rail support according to the height size constraint relationship of the array voice coil motor, and assemble the guide rail support after assembling the guide rail on the fixed base. The top of each assembled guide rail support is at the same height relative to the fixed base, so that the assembled array voice coil motor strictly meets the size requirements;

[0024] 2) Assemble the edge permanent magnet and the middle permanent magnet according to the preset magnet mounting mode, so that the assembled magnet assembly meets the width size constraint relationship, and prevents irreversible demagnetization of the magnet during the assembly process;

[0025] 3) During the assembly of the yoke, the top fixed plate and the bottom fixed plate, the bottom fixed plate is fixedly installed between the two yoke bottoms, and the top fixed plate is only positioned between the two yoke tops. A spacer is arranged between the top fixed plate and the two yoke tops, so that the distance between the two yoke tops is greater than the distance between the two yoke bottoms, to increase the space allowance for the position offset of the two yoke tops during the assembly of the middle permanent magnet. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The array voice coil motor assembly process flow chart;

[0027] Figure 2 The stator assembly assembly schematic diagram;

[0028] Figure 3 The bottom fixed plate and yoke assembly schematic diagram of the magnet assembly;

[0029] Figure 4Assembly diagram for edge magnets;

[0030] Figure 5 Assembly diagram for magnetic gap and middle permanent magnet;

[0031] Figure 6 Assembly diagram for edge magnets in another sequence of magnets;

[0032] Figure 7 Assembly diagram for magnetic gap and middle permanent magnet in another sequence of magnets;

[0033] Figure 8 Assembly diagram for completed magnet assembly;

[0034] Figure 9 Assembly diagram for mover assembly;

[0035] Figure 10 Assembly diagram for guide rail bracket and guide rail in guide rail assembly;

[0036] Figure 11 Assembly diagram for completed guide rail bracket and guide rail;

[0037] Figure 12 Assembly diagram for assembled guide rail bracket assembly and another set of tool base plate and fixed base frame;

[0038] Figure 13 Assembly diagram for stator assembly, mover assembly, and guide rail assembly. DETAILED DESCRIPTION

[0039] The application will be described in further detail below with specific embodiments and with reference to the accompanying drawings.

[0040] The general assembly of the array voice coil motor of the application mainly consists of a magnet assembly, a coil assembly, and a guide rail assembly. Among them, there is one set of magnet assembly, one set of coil assembly, and one set of guide rail assembly (containing 29 guide rails, 29 guide rail brackets, and one fixed base frame). The magnet assembly mainly includes 56 middle permanent magnets, 4 edge permanent magnets, 2 magnetic yokes, a top fixed plate, and a bottom fixed plate. In order to prevent irreversible demagnetization of the assembled array voice coil motor and prevent dimensional deformation of the assembled array voice coil motor, the application provides an array voice coil motor assembly process, the flow chart of which is shown in Figure 1 and specifically includes the following steps.

[0041] S100: Assemble the magnet assembly to form the stator assembly of the array voice coil motor: assemble the magnetic yoke, the bottom fixed plate, and the top fixed plate according to the width size constraint relationship of the array voice coil motor, and assemble the edge permanent magnets and the middle permanent magnets according to the preset magnet mounting mode, so that the assembled magnet assembly meets the width size constraint relationship and prevents irreversible demagnetization of the magnets during assembly.

[0042] S200: Assemble the coil assembly to form the mover assembly of the array voice coil motor.

[0043] S300: Assemble the guide rail assembly: according to the height size constraint relationship of the array voice coil motor, assemble the guide rail on the guide rail support, and assemble the guide rail support after assembling the guide rail on the fixed base, and the top of each guide rail support is at the same height relative to the fixed base after assembly.

[0044] S400: Install the mover assembly on the guide rail assembly, and put the guide rail assembly with the installed mover assembly into the stator assembly to complete the assembly of the array voice coil motor.

[0045] The specific assembly diagram of step S100 is shown in Figure 2 In step S100, the yoke, the bottom fixed plate and the top fixed plate are assembled according to the width size constraint relationship of the array voice coil motor, which specifically includes the following steps:

[0046] The bottom fixed plate is fixed between the bottoms of the two yokes, and the distance between the bottoms of the two yokes satisfies the width size constraint relationship;

[0047] The top fixed plate is positioned between the tops of the two yokes, and a spacer is arranged between the top fixed plate and the tops of the two yokes, so that the distance between the tops of the two yokes is greater than the distance between the bottoms of the two yokes, to increase the space allowance for the position deviation of the tops of the two yokes during the assembly of the middle permanent magnet.

[0048] Specifically, as shown in Figure 3 First, the bottom fixed plate 3 is positioned with the yoke 1 through the cylindrical pin 7, the distance between the yokes is adjusted to meet the requirements, and is fixed by screwing the screw 6. A 0.25mm spacer is inserted into the gap between the top fixed plate 2 and the yoke 1.

[0049] In this application, the top fixed plate 2 and the bottom fixed plate 3 are respectively provided with magnet limiting grooves with both ends open, and the top fixed plate 2 and the bottom fixed plate 3 are respectively provided with opening grooves for inserting the magnetic separation sheet on the left and right sides of the magnet limiting groove; in step S100, the edge permanent magnet and the middle permanent magnet are assembled according to the preset magnet installation mode, which specifically includes the following steps: for the assembly of each sequence magnet, first assemble the edge permanent magnet to the inner side of the yoke, then insert the magnetic separation sheet into the opening groove on the left and right sides of the magnet limiting groove, and then assemble the middle permanent magnet from the side between the two magnetic separation sheets in the magnet limiting groove.

[0050] Further, the magnet limiting groove of the present application has a V-shaped structure, the middle permanent magnet and the magnet limiting groove are limited by the V-shaped structure, which has the following characteristics:

[0051] 1. This design facilitates line contact between the permanent magnet and the mounting plate, resulting in a more secure installation between them.

[0052] 2. By using V-shaped locking devices, the middle permanent magnet can be installed more securely, and the left and right sides of the permanent magnet can be completely constrained, preventing it from sliding left and right in the air gap direction, thus ensuring the consistency of the air gap size.

[0053] 3. With V-shaped limiting mechanism, the single-sided groove structure is stronger, more robust, and less prone to deformation.

[0054] Specifically, such as Figure 4 As shown, the edge permanent magnet 5 is pressed tightly against the bottom fixing plate 3 and the magnetic yoke 1, and pushed in the direction of the arrow in the figure until the end face of the edge permanent magnet 5 is flush with the outer end face of the magnetic yoke 1.

[0055] like Figure 5 As shown, first insert the magnetic shielding sheet into the opening slots on both sides of the magnet limiting slot, and then slowly push the middle permanent magnet 4 from the slot opening into the other end of the V-shaped slot in the direction of the arrow shown in the figure until the end face of the middle permanent magnet 4 is flush with the end face of the magnetic yoke 1.

[0056] like Figure 6 As shown, the rear edge permanent magnet 5 is pressed tightly against the mounting surface of the magnetic yoke 1 and the bottom fixing plate 3, and slowly pushed in the direction of the arrow in the figure until it contacts the end face of the front permanent magnet (take care to prevent the front and rear magnets from colliding).

[0057] like Figure 7 As shown, first insert the magnetic shielding sheet into the opening slots on both sides of the magnet limiting slot, and then slowly push the middle permanent magnet 4 from the slot opening into the other end of the V-shaped slot in the direction of the arrow shown in the figure until the end face of the middle permanent magnet 4 is flush with the end face of the magnetic yoke 1.

[0058] Depend on Figures 4 to 7 It is known that when an array-type voice coil motor has two sequences of magnets, since the magnet limiting grooves are open at both ends, each sequence of magnets is assembled from both sides in sequence according to the magnet polarity. This can prevent the two sequences of magnets from colliding during the assembly process.

[0059] Assemble the magnet assembly as described above. After assembly, remove the magnetic shielding sheet and plug. Check the flatness of the mounting surfaces of the bottom and top fixing plates. Once the flatness of the mounting surfaces of the bottom and top fixing plates meets the preset conditions, fix the top fixing plate between the tops of the two magnetic yokes. Figure 8 As shown; for example, in the assembled magnet assembly, the flatness of the top fixing plate mounting surface and the bottom fixing plate mounting surface is better than 0.015 mm; the parallelism between the two is better than 0.02 mm.

[0060] The specific assembly drawing for step S200 is as follows: Figure 9As shown, in step S200, the coil assembly is assembled to form a mover assembly of an array voice coil motor, wherein the coil assembly comprises a coil and a coil holder, and the assembling process of the coil and the coil holder comprises the following steps:

[0061] 1. Check the appearance, key dimensions, coil resistance and number of turns of the coil and the coil holder.

[0062] 2. Apply glue in the groove of the coil holder, put the coil winding into the groove of the holder, and apply glue at both end notches.

[0063] 3. Quickly clean the excess glue on the surface of the coil and the holder, then put them into a shaping tool, and adjust the position of the coil to be in the middle of the groove of the coil holder.

[0064] 4. Wait for about 2 hours for the glue to completely solidify.

[0065] 5. Detect the resistance of the coil winding and the contact resistance between the coil and the holder.

[0066] 6. Thread the lead wires through the insulating sleeves. To ensure the insulation effect between the lead wires, it is best to thread an insulating sleeve for each lead wire.

[0067] 7. Finish the mounting end surface of the coil holder. After finishing, clean the excess material, and then detect the resistance of the coil and the contact resistance between the coil and the holder.

[0068] 8. Cut, scrape the paint, tin and apply flux to the lead terminals; thread the flat ribbon connecting wires through the insulating sleeves, tin and apply flux. Note: To prevent the welding end from being in contact with the holder groove, the welding end of the flat ribbon connecting wire must be threaded through the insulating sleeve. Note: When scraping the paint from the lead terminals, the scraping length should not exceed 2 mm; the tinning length should also not be too long, otherwise when the two wires cross after welding the terminals, contact short circuit may occur.

[0069] 9. Weld the lead terminals and the flat ribbon connecting wires together. Note that the welding should not be loose, and the welding points should be firm and secure.

[0070] 10. Detect the resistance between the flat terminals and the contact resistance between the flat terminals and the coil holder.

[0071] 11. Apply glue to fix and insulate the welding end points, and then wait for the glue to completely solidify.

[0072] 12. Detect whether the resistance of the flat ribbon connecting wire end and the contact resistance between the flat ribbon connecting wire end and the holder are normal.

[0073] In step S300, the guide rail assembly includes a fixed base, several guide rails, and guide rail supports. The guide rails are assembled onto the guide rail supports according to the height and dimensional constraints of the array-type voice coil motor. Then, the guide rail supports with the assembled guide rails are assembled onto the fixed base. The tops of each assembled guide rail support are at the same horizontal level relative to the fixed base. The specific steps include:

[0074] Assemble the guide rail and guide rail bracket: Use the first set of tooling base plate and fixed base frame to assemble the guide rail onto the guide rail bracket, and constrain the vertical and horizontal movement of the guide rail relative to the guide rail bracket during the assembly process;

[0075] After the guide rail is assembled, the guide rail bracket is removed from the first set of tooling base plate and fixed base frame, and the guide rail bracket carrying the guide rail is assembled onto the second set of fixed base frame using the second set of tooling base plate and fixed base frame.

[0076] Check the flatness of the top end face of the guide rail brackets already assembled on the second set of fixed base frames, so that the top end face of each assembled guide rail bracket is at the same horizontal height relative to the fixed base frame.

[0077] First, prepare two sets of tooling base plates and fixing frames. One set of tooling base plates and fixing frames is used to assemble the guide rail and guide rail bracket, and the other set of tooling base plates and fixing frames is used to assemble the guide rail bracket carrying the guide rail, thereby forming the guide rail assembly.

[0078] Specifically, such as Figures 10-11 As shown, in the assembly of the first tooling base plate 12 and the fixed base frame 17, the guide rail bracket 11 is positioned by the cylindrical pin 14, pressed against the end face of the tooling base plate 12, and fastened by the screw 13 to constrain the vertical movement of the guide rail bracket 11. The guide rail 16 is placed into the guide rail bracket 11, and then the fixed base frame 17 is pressed into the tooling base plate 12, positioned by the cylindrical pin 18, and fastened by the screw 19. Then, the slider of the guide rail 16 is pushed into the groove of the fixed base frame 17, and the slider of the guide rail is tightened and fixed by the small screw 15.

[0079] After applying glue to the small screws 21, insert them into the side screw holes of the guide rail 16. Make sure all the small screws 21 on the side are tightened to constrain the left and right movement of the guide rail relative to the guide rail bracket.

[0080] It also includes inserting the grating ruler fixing bracket 20 into the groove of the guide rail 16 and the guide rail bracket 11, and fixing and tightening it with small screws 21 by applying glue.

[0081] Through the above assembly method, the guide rail 16 is assembled to the guide rail support 11, and in the process of assembly, the guide rail support 11 is fastened to the tool base plate 12 through the screw 13, and the guide rail 16 is fastened with the guide rail support 11 from the side of the guide rail 16 through the small screw 21, so as to achieve the purpose of restraining the up-down movement and left-right movement of the guide rail 16 relative to the guide rail support 11.

[0082] As shown in Figure 11 , the guide rail and the guide rail support have been assembled, and the assembled guide rail, the guide rail support, the grating ruler fixing support, and the slider on the guide rail are collectively referred to as a guide rail support assembly. The assembled guide rail support assembly is disassembled from the tool base plate 12. Specifically, the screw 13 is disassembled first, then the small screw 15 is disassembled, then the screw 19 and the fixed base support 17 are disassembled, and finally the guide rail support assembly is taken off.

[0083] As shown in Figure 12 , the assembled guide rail support assembly is assembled into another assembly of tool base plate and fixed base support, and the smoothness of the slider of the guide rail 16 is adjusted. The cylindrical pin is assembled into the tool base plate (without the need to assemble the screw for fixation, otherwise it will be over-constrained), and then the fixed base support is positioned through the cylindrical pin. After the slider of the guide rail support assembly is pushed into the groove bottom of the fixed base support, the screw is tightened, and finally the small screw is fastened to the slider in the guide rail support assembly. The smoothness of the guide rail is adjusted by fine-tuning the position of the small screw.

[0084] According to the above steps, the assembly of the guide rail assembly is completed, and after each guide rail support assembly is assembled, the planeness of the finger end surface of the guide rail support assembly is detected by using a dial gauge. The top end surfaces of the assembled guide rail supports are at the same height relative to the fixed base support. For example, the planeness deviation of the assembled finger end surfaces is not more than 0.08 mm.

[0085] Through the above method of assembling the guide rail assembly, the top end surfaces of the guide rail supports can be ensured to be at the same height, thereby avoiding the phenomenon of uneven height of the guide rail supports during assembly, and further ensuring that the assembled array voice coil motor meets the height dimension requirement.

[0086] In Figure 12 , the guide rail support assembly and the fixed base support are assembled into a whole to form a guide rail assembly. The whole is disassembled from the tool base plate, and in step S400, the coil support is fixedly installed with the guide rail support, so as to realize the installation of the mover assembly to the guide rail assembly. The specific assembly diagram of step S400 is shown in Figure 13 .

[0087] The array voice coil motor assembly process provided in the application assembles the yokes, the bottom fixed plate and the top fixed plate according to the width size constraint relationship of the array voice coil motor, assembles the guide rails on the guide rail supports according to the height size constraint relationship of the array voice coil motor, and assembles the guide rail supports after the guide rails are assembled on the fixed base frame. The top of each guide rail support after assembly is at the same horizontal height relative to the fixed base frame, so that the assembled array voice coil motor strictly meets the size requirements. The edge permanent magnets and the middle permanent magnets are assembled according to the preset magnet mounting mode, so that the assembled magnet assembly meets the width size constraint relationship, and irreversible demagnetization of the magnets is prevented during the assembly process. In the process of assembling the yokes, the top fixed plate and the bottom fixed plate, the bottom fixed plate is fixedly installed between the bottoms of the two yokes, while the top fixed plate is only positioned between the tops of the two yokes, and a spacer is arranged between the top fixed plate and the tops of the two yokes, so that the distance between the tops of the two yokes is greater than the distance between the bottoms of the two yokes, to increase the space allowance for the position offset of the tops of the two yokes during the assembly process of the middle permanent magnets.

[0088] The above application of specific examples is used to illustrate the application, and is only used to help understand the application, and does not limit the application. According to the idea of the application, those skilled in the art in the field of the application can make several simple deductions, deformations or substitutions.

Claims

1. An array voice coil motor assembly process, characterized in that, The array voice coil motor comprises a magnet assembly, a coil assembly and a guide rail assembly; the magnet assembly comprises a yoke, a top fixed plate, a bottom fixed plate, edge permanent magnets and a plurality of intermediate permanent magnets; the guide rail assembly comprises a fixed base frame, a plurality of guide rails and guide rail supports; the assembly process of the array voice coil motor comprises the following steps: Assembling the magnet assembly to form a stator assembly of the array voice coil motor: the yoke, the bottom fixed plate and the top fixed plate are assembled according to the width dimension constraint relationship of the array voice coil motor, and the edge permanent magnets and the intermediate permanent magnets are assembled according to a preset magnet mounting mode, so that the assembled magnet assembly satisfies the width dimension constraint relationship and irreversible demagnetization of the magnets is prevented during the assembly process; Assembling the coil assembly to form a rotor assembly of the array voice coil motor; Assembling the guide rail assembly: the guide rails are assembled on the guide rail supports according to the height dimension constraint relationship of the array voice coil motor, and the guide rail supports with the assembled guide rails are assembled on the fixed base frame, so that the top of each guide rail support is at the same horizontal height relative to the fixed base frame after the assembly; Mounting the rotor assembly on the guide rail assembly, and placing the guide rail assembly with the mounted rotor assembly into the stator assembly to complete the assembly of the array voice coil motor; The yoke, the bottom fixed plate and the top fixed plate are assembled according to the width dimension constraint relationship of the array voice coil motor, and the edge permanent magnets and the intermediate permanent magnets are assembled according to a preset magnet mounting mode, so that the assembled magnet assembly satisfies the width dimension constraint relationship and irreversible demagnetization of the magnets is prevented during the assembly process; The yoke, the bottom fixed plate and the top fixed plate are assembled according to the width dimension constraint relationship of the array voice coil motor, and the edge permanent magnets and the intermediate permanent magnets are assembled according to a preset magnet mounting mode, so that the assembled magnet assembly satisfies the width dimension constraint relationship and irreversible demagnetization of the magnets is prevented during the assembly process; The top fixed plate and the bottom fixed plate are respectively provided with magnet limiting grooves with two open ends, and the top fixed plate and the bottom fixed plate are respectively provided with opening grooves for inserting the magnetic separation sheets on the left and right sides of the magnet limiting grooves; the edge permanent magnets and the intermediate permanent magnets are assembled according to a preset magnet mounting mode, and the assembly process specifically comprises the following steps: For the assembly of each sequence of magnets, the edge permanent magnets are first assembled to the inner side of the yoke, then the magnetic separation sheets are inserted into the opening grooves on the left and right sides of the magnet limiting grooves, and then the intermediate permanent magnets are assembled from the side into the magnet limiting grooves between the two magnetic separation sheets. The magnetic separation sheets and the spacers are removed, the flatness of the mounting surface of the bottom fixed plate and the top fixed plate is detected, and after the flatness of the mounting surface of the bottom fixed plate and the top fixed plate meets the preset condition, the top fixed plate is fixed between the two yoke top portions.

2. The array voice coil motor assembly process of claim 1, wherein, The magnet limiting grooves have a V-shaped structure.

3. The array voice coil motor assembly process of claim 1, wherein, The guide rails are assembled on the guide rail supports according to the height dimension constraint relationship of the array voice coil motor, and the guide rail supports with the assembled guide rails are assembled on the fixed base frame, so that the top of each guide rail support is at the same horizontal height relative to the fixed base frame after the assembly; 4. The array voice coil motor assembly process of claim 1, wherein, The guide rails and the guide rail supports are assembled by using a first set of tooling base plates and the fixed base frame to constrain the up-down movement and the left-right movement of the guide rails relative to the guide rail supports during the assembly process. ​ The guide rail support with the assembled guide rail is detached from the first set of tool base plate and fixed base frame, and is assembled on the second set of fixed base frame with the second set of tool base plate and fixed base frame; The flatness of the top end surface of the assembled guide rail support on the second set of fixed base frame is detected, so that the top end surfaces of the assembled guide rail supports are at the same height relative to the fixed base frame.

5. The array voice coil motor assembly process of claim 4, wherein, The flatness deviation of the top end surfaces of the assembled guide rail supports is less than or equal to 0.08 mm.

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