Assembly process of magnet module for motor

Abstract

The present invention relates to the field of magnet technology, and in particular discloses an assembly process for a magnet module for a motor, comprising the following steps: first, providing a motor component, a mounting jig, a fixing ring, a base, a demoulding jig, an installation tool, and providing a plurality of magnet classification labels; then, fixing the motor component to the base, and sleeved with a fixing ring; then, installing a jig with a receiving groove, and inserting a magnetic isolation member into the receiving groove so that it extends between the fixing ring and the motor component to form a gap for magnet installation. After applying adhesive to the motor component and the magnet, a first magnet and a second magnet that attract each other are formed into an attractive magnetic group and installed between adjacent magnetic isolation members. Finally, the magnetic isolation member is pulled out, and a third magnet that repels the attractive magnetic group is installed so that it is located between two adjacent attractive magnetic groups, thereby forming a complete magnet module. This process achieves precise installation of magnets, avoids magnetic interference, simplifies the operating process, and improves assembly efficiency and the overall quality of the magnet module.

Description

Technical Field

[0001] The present invention relates to the field of magnet technology, and in particular discloses an assembly process for a magnet module for a motor. Background Art

[0002] With the advancement of motor technology, external motor components have gained widespread application in industrial robots and high-performance servo motors due to their excellent heat dissipation and high torque density. The performance of external motor components directly depends on the installation accuracy and consistency of their magnet modules. Traditional magnet module assembly processes are difficult to ensure consistent magnet gap and polarity, which impacts motor performance and reliability. The glue dispensing process is prone to overflow or uneven coating, complicating subsequent processes. Furthermore, traditional processes lack adequate protection for non-operating areas, potentially causing contamination or component damage. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide an improved magnet module assembly process, which solves the above-mentioned problems in the prior art by introducing special jigs, magnetic pole detection equipment, and precise dispensing and fixing technologies, and realizes a high-efficiency, high-precision, and highly automated assembly process.

[0004] To achieve the above-mentioned object, an assembly process of a magnet module for a motor according to the present invention comprises the following steps:

[0005] Provide installation jigs, fixing rings, bases, demoulding jigs, installation tools, protective parts, magnetic pole detection devices, magnetic isolation parts, cleaning tools, ovens and adhesives. Provide multiple magnets and place them in sequence after classification and labeling.

[0006] S1, installing the motor component to the base and sleeve a fixing ring on the outside of the motor component;

[0007] S2, installing a mounting fixture on the motor component or the base, wherein the outer side of the mounting fixture is provided with a plurality of receiving grooves for matching the single magnet;

[0008] S3, inserting the plurality of magnetic isolation members into the plurality of receiving grooves of the mounting fixture, respectively, with one end of the magnetic isolation member protruding from the mounting fixture and extending between the fixing ring and the motor component;

[0009] S4, applying an adhesive to the motor component and / or the plurality of magnets, installing a first magnet and a second magnet that attract each other between the fixing ring and the motor component, the first magnet and the second magnet forming an attractive magnetic group, and the attractive magnetic group being located between two adjacent magnetic isolation members;

[0010] S5, pull out the magnetic isolation member from the accommodating groove, and install the third magnet between the fixing ring and the motor component through the accommodating groove. The third magnet is located between two adjacent attractive magnetic groups. The third magnet repels the first magnet and the second magnet. The first magnet, the second magnet, and the third magnet form the required magnet module on the outside of the motor component.

[0011] Furthermore, the following steps are included:

[0012] S6, using a magnetic pole detection device to detect the polarity directions of all magnets in the magnet module installed on the motor component, if the polarity direction of the magnet is incorrectly installed, remove the magnet and rework it.

[0013] Furthermore, the following steps are included:

[0014] S7, placing the motor components, magnet modules and fixing rings that have passed the inspection of the magnetic pole detection device into an oven, and using the high temperature inside the oven to cure the adhesive. After the adhesive is cured, use a demoulding jig to demould the fixing ring from the rotor to complete the assembly of the magnet module.

[0015] Furthermore, the multiple magnets provided in step S1 are divided into multiple first magnets, multiple second magnets, multiple third magnets, multiple fourth magnets, multiple fifth magnets and multiple sixth magnets through identification, and are grouped and placed in sequence for use; the first magnet is the first magnet, the third magnet, the fourth magnet or the sixth magnet, the second magnet is the sixth magnet, the fourth magnet, the third magnet, or the first magnet, the third magnet is the second magnet or the fifth magnet, the first magnet, the second magnet, the third magnet, the fourth magnet, the fifth magnet and the sixth magnet correspond one to one, and a first magnet, a second magnet, a third magnet, a fourth magnet, a fifth magnet and a sixth magnet are combined to form a Halbach magnet group.

[0016] Furthermore, a first magnet and a sixth magnet are combined and bonded together using an adhesive to form a first magnet assembly, and a third magnet and a fourth magnet are combined and bonded together to form a second magnet assembly.

[0017] Furthermore, the step S4 further includes the following steps:

[0018] Using an installation tool, install the plurality of first magnet assemblies between two adjacent magnetic isolation members, so that two magnetic isolation members and two receiving slots are left between the two adjacent first magnet assemblies;

[0019] Using an installation tool, install the plurality of second magnet assemblies between two magnetic isolation members between two adjacent first magnet assemblies, and place the first magnets close to the third magnets.

[0020] Remove one end of the magnetic isolation member away from the fixed ring to make room for a portion of the accommodating groove near the fixed ring (a convenient disassembly notch is provided on the magnetic isolation member. When removing the magnetic isolation member, an installation tool or the like can be inserted into the convenient disassembly notch to remove the magnetic isolation member). Place adhesive in the accommodating groove, and respectively install a plurality of second magnets in the accommodating grooves provided with the adhesive, so that the second magnets are located between the first magnet of the first magnet assembly and the third magnet of the second magnet assembly.

[0021] Push the magnetic isolation member located between the fourth magnet and the sixth magnet away from one end of the fixed ring to make room for the portion of the accommodating groove close to the fixed ring, set the adhesive in the accommodating groove, and respectively install multiple fifth magnets in the accommodating grooves with the adhesive, so that the fifth magnet is located between the fourth magnet of the second magnet assembly and the sixth magnet of the first magnet assembly.

[0022] Furthermore, the mounting jig is provided with a plurality of holding blocks, and a holding block is formed between two adjacent accommodating grooves, and the holding block is used to press and hold the end of the magnet away from the base; after the first magnet and the second magnet are installed in step S4, the mounting jig is pressed down so that the mounting jig presses and holds the end of the first magnet away from the base and the end of the second magnet away from the base until all the ends of the first magnet away from the mounting jig and the ends of the second magnet away from the mounting jig are pressed against the base and are flush.

[0023] Furthermore, after installing the third magnet, remove the installation jig, install the pressing jig on the motor component or the base, and press the pressing jig down to press the end of the third magnet away from the base until all the ends of the third magnet away from the pressing jig are flush with the base.

[0024] Furthermore, after the magnets are installed in step S5, the mounting jig is demolded and a fixing ring is installed on the magnet module on the motor component so that the magnet module is limited between the fixing ring and the motor component, and a magnetic pole detection device is used to detect the polarity of each magnet in the magnet module.

[0025] Furthermore, in the S7 step, the oven temperature is set to 85 degrees, the motor component and the fixing ring are placed in the oven, the temperature in the oven is slowly raised to 90 degrees, and then baked for 2 hours. Before the fixing ring is installed to the magnet module, release wax is applied on the side close to the magnet module to facilitate the demolding of the fixing ring.

[0026] Furthermore, the demolding fixture includes a first demolding member and a second demolding member, the first demolding member includes a first base and a columnar protrusion arranged thereon, the middle part of the columnar protrusion is provided with a mounting hole for accommodating the shaft body of the motor component, the second demolding member includes a second base and an annular protrusion arranged thereon, the inner diameter of the annular protrusion is larger than the outer diameter of the magnet module mounted to the motor component so that it is mounted on the magnet module and contacts the fixing ring for demolding the fixing ring.

[0027] Furthermore, after step S6, appearance inspection and surface cleaning are performed, residual adhesive on the surface of the magnet module is cleaned using a cleaning tool, and the magnetic poles of each magnet in the magnet module are detected using a magnetic pole detection device. The motor components and magnet modules that have passed the inspection and cleaning process enter the next process.

[0028] Furthermore, after the appearance inspection and surface cleaning steps, the mechanical and electrical properties of the motor components and the magnet module are tested using testing equipment to ensure that the assembly quality of the magnet module meets predetermined standards.

[0029] The motor magnet module assembly process provided by this invention utilizes a specialized mounting fixture and magnetic isolation components for precise positioning. Magnets are categorized, labeled, and assembled in a pre-set sequence to ensure correct pairing. During assembly, a magnetic pole detection device performs multiple checks to ensure magnet polarity consistency. An innovative, step-by-step glue dispensing and step-out installation process achieves precise assembly. Furthermore, a curing process for the retaining ring and release wax ensures the overall stability of the magnet module and facilitates subsequent demolding.

[0030] Beneficial effects of the present invention: Compared with traditional processes, the present invention solves the problem of uneven magnet gaps through a precise positioning system of special jigs and magnetic isolation parts. Multiple magnetic pole detection and preset sequence assembly methods effectively ensure the consistency of magnet polarity. The innovative step-by-step dispensing and step-out installation process avoids adhesive overflow and uneven coating, while the provision of protective parts effectively prevents contamination and component damage during the assembly process. In addition, the use of fixed rings and demoulding wax simplifies the demoulding process and improves production efficiency. The complete detection system ensures the assembly quality of the magnet module and the reliability of the motor performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A process flow chart of the assembly process of the motor magnet module of the present invention;

[0032] Figure 2 This is a schematic diagram of the combined structure of the mounting fixture, magnetic isolation member, motor component, fixing ring and base of the present invention;

[0033] Figure 3 for Figure 2Schematic diagram of the structure of the intermediate magnetic component being moved out of the receiving groove by the installation tool;

[0034] Figure 4 for Figure 2 Schematic diagram of the structure of the decomposition state;

[0035] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of part A;

[0036] Figure 6 This is a schematic structural diagram of the demoulding jig of the present invention when performing demoulding;

[0037] Figure 7 This is a schematic diagram of the structure of the demoulding jig of the present invention after the fixing ring is demoulded from the magnet module;

[0038] Figure 8 This is a schematic structural diagram of the magnet module of the present invention after being assembled to the motor component;

[0039] Figure 9 Schematic diagram of the arrangement of local magnetic poles of the assembled magnet module of the present invention.

[0040] Reference numerals include:

[0041] 1. Mounting fixture; 10. Motor component; 101. Shaft; 2. Fixing ring; 3. Base; 4. Demolding fixture; 41. First demolding member; 410. First seat; 411. Columnar protrusion; 412. Mounting hole; 42. Second demolding member; 420. Second seat; 421. Annular protrusion; 5. Mounting tool; 6. Magnetic isolation member; 61. Easy-to-remove notch; 11. Receiving groove; 71. First magnet; 72. Second magnet; 73. Third magnet; 74. Fourth magnet; 75. Fifth magnet; 76. Sixth magnet; 100. First magnet assembly; 200. Second magnet assembly; 300. Magnet module. DETAILED DESCRIPTION

[0042] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0043] See also Figures 1 to 9 As shown, the present invention proposes an assembly process for a magnet module for a motor, which specifically includes the following steps:

[0044] An assembly process for a motor magnet module includes the following steps:

[0045] Preparation: Provide installation jig 1, fixing ring 2, base 3, demoulding jig 4, installation tool 5, protective parts, magnetic pole detection device, magnetic isolation 6, cleaning tools, oven and adhesive. Provide multiple magnets and place them in order after classification and labeling.

[0046] S1, installing the motor component 10 to the base 3 and sleeve the fixing ring 2 on the outside of the motor component 10;

[0047] S2, installing the mounting fixture 1 on the motor component 10 or the base 3, wherein the outer side of the mounting fixture 1 is provided with a plurality of receiving grooves 11 for matching a single magnet, and the receiving grooves 11 penetrate the mounting fixture 1 along the central axis direction of the mounting fixture 1, and the plurality of receiving grooves 11 are arranged in a ring array around the central axis of the mounting fixture 1. Preferably, the receiving grooves 11 penetrate the side surface of the mounting fixture 1. In this embodiment, the main body of the mounting fixture 1 is cylindrical;

[0048] S3, inserting a plurality of magnetic isolation members 6 into a plurality of receiving grooves 11 of the mounting fixture 1, one end of the magnetic isolation member 6 protrudes from the mounting fixture 1 and extends between the fixing ring 2 and the motor component 10, the magnetic isolation member 6 is generally a straight thin sheet, preferably a rectangular sheet, and according to actual needs, the magnetic isolation member 6 can be made of aluminum alloy or stainless steel. Compared with the magnetic isolation member 6 made of iron sheet, the magnetic isolation member 6 is prevented from being attracted by the magnetic force of the installed magnet, causing inconvenience in use;

[0049] S4, applying adhesive to the motor component 10 and / or the plurality of magnets. Depending on actual needs, the adhesive may be applied manually to the motor component 10 or the magnet using a brush or a dispensing device. Of course, the adhesive may also be applied to the motor component 10 or the magnet using an automatic adhesive application device. The first magnet and the second magnet that attract each other are installed between the fixing ring 2 and the motor component 10. The first magnet and the second magnet form an attractive magnetic group, and the attractive magnetic group is located between two adjacent magnetic isolation members 6.

[0050] S5. Remove the magnetic isolation member 6 from the accommodating groove 11 and install the third magnet between the fixing ring 2 and the motor component 10 through the accommodating groove 11. The third magnet is located between two adjacent attractive magnetic groups. The third magnet repels the first magnet and the second magnet. The first magnet, the second magnet, and the third magnet form the desired magnet module 300 on the outside of the motor component 10.

[0051] S6, using a magnetic pole detection device to detect the polarity directions of all magnets in the magnet module 300 installed on the motor component 10, and removing the magnets if the polarity directions of the magnets are incorrectly installed and reworking them;

[0052] S7, put the motor component 10, magnet module 300 and fixing ring 2 that have passed the magnetic pole detection device into the oven, use the high temperature inside the oven to solidify the adhesive, and after the adhesive is solidified, use the demoulding jig 4 to demould the fixing ring 2 from the rotor 10 to complete the assembly of the magnet module 300.

[0053] The main steps include preparation, installation of the magnetic barrier 6, magnet assembly and testing, magnet installation, polarity testing and cleaning, curing and demolding, and final performance testing. Precise fixture design, auxiliary positioning of the magnetic barrier 6, and a step-by-step glue dispensing assembly process ensure uniform magnet spacing, consistent polarity, and uniform adhesive coating. Magnetic pole detection devices, cleaning tools, and specialized testing equipment are also used to ensure that the mechanical and electrical performance of the magnet module 300 meets design standards.

[0054] Specifically, the motor component 10 provided in the work preparation is a rotor, and the mounting jig 1 is a cylindrical jig with multiple accommodating grooves 11 around the central opening; the mounting base 3 is placed on the bearing surface of an external object to support the motor component 10 and the mounting jig 1 for assembly of the magnet module 300; the inner diameter of the fixing ring 2 is larger than the outer diameter of the motor component 10 and has a certain deformation ability so that the magnet can be inserted into the gap formed between the fixing ring 2 and the outside of the motor component 10.

[0055] The demolding fixture 4 includes a first demolding member 41 and a second demolding member 42. The first demolding member 41 includes a first rectangular base body 410 and a columnar protrusion 411 arranged thereon. The middle part of the columnar protrusion 411 is provided with a mounting hole 412 for accommodating the shaft body 101 of the motor component 10. The outer diameter of the columnar protrusion 411 is less than or equal to the inner diameter of the motor component 10 so that the motor component 10 can be sleeved on the columnar protrusion 411. The second demolding member 42 includes a second rectangular base body 420 and an annular protrusion 421 arranged thereon. The inner diameter of the annular protrusion 421 is larger than the outer diameter of the magnet module 300 mounted to the outside of the motor component 10 so that it can be sleeved on the magnet module 300 and abut against the fixing ring 2 to facilitate the demolding of the fixing ring 2.

[0056] The installation tool 5 is a magnetic conductive part (which can be a screwdriver), the end of which is used to absorb magnets instead of manual installation; the protective part is a masking glue for installing the motor component 10; the magnetic pole detection device includes a magnetic display card and a magnetic pole detection rod; the magnetic isolation part 6 is a pin that matches the shape of the accommodating groove 11 (the width of the pin is greater than the depth of the accommodating groove 11); the cleaning tools include alcohol and non-woven fabric; the adhesive is a glue and dispensing kit (dispensing syringe) with model number EW6306LT-11.

[0057] Specifically, after the operation preparation is completed, the plug operation is carried out, that is, the installation of the magnetic isolation component 6. First, the motor component 10 is covered with masking glue (protective component) on the non-operating part of the motor component 10, that is, the center frame. Then the motor component 10 is placed on the base 3, and the inner circular surface of the fixing ring 2 is coated with a layer of demoulding wax and then put on the outside of the motor component 10 (the inner diameter of the fixing ring 2 is larger than the outer diameter of the motor component 10 so that an installation gap is left between the two). A limiting structure for limiting the fixing ring 2 is provided on the base 3 (it can be an annular rib and an annular groove for accommodating the annular rib is opened on the bottom wall of the fixing ring 2. This structural design further ensures the stability of the fixing ring 2, so that when the magnet module is installed, there will be no magnet installation offset).

[0058] Then install the mounting jig 1 on the motor component 10 (the center mounting hole 412 is aligned with the shaft 101 of the motor component 10); then install multiple magnetic isolation components 6 into the accommodating grooves 11 of the mounting jig 1. After installing the magnetic isolation components 6, use cable ties to fix them in the mounting jig 1. Then, lift the mounting jig 1 and insert three iron pillars into the gap between the mounting jig 1 and the motor component 10 to raise the mounting jig 1.

[0059] Specifically, after the magnetic isolation member 6 is installed, multiple magnets are classified and combined, and the first magnet 71 and the sixth magnet 76 are combined into a first magnet assembly 100, and after being glued together with a dispensing syringe, they are marked with lines (two red lines and two bars) using a grease pen. The number of first magnet assemblies 100 is 33 groups; then the third magnet 73 and the fourth magnet 74 are combined into a second magnet assembly 200, and after being glued together with a dispensing syringe, they are marked with lines (two black lines and two bars) using a grease pen. The number of second magnet assemblies 200 is the same as the number of first magnet assemblies 100.

[0060] Specifically, after the first magnet assembly 100 and the second magnet assembly 200 are assembled and installed, glue is dispensed at the outer magnet installation position of the motor component 10 using a glue syringe, and the installation tool 5 is used to sequentially install 33 groups of first magnet assemblies 100 into the installation gap between the two magnetic isolation parts 6 and clamped by the inner circular surface of the fixing ring 2 and the outer circular surface of the motor component 10; two magnetic isolation parts 6 (i.e., one installation gap) are left between the two adjacent first magnet assemblies 100 for the subsequent installation of the second magnet assembly 200.

[0061] Specifically, after the first magnet assembly 100 and the second magnet assembly 200 are installed, the mounting jig 1 is rotated, and the holding block formed between the two adjacent accommodating grooves 11 on the mounting jig 1 is used to press against the end of the first magnet assembly 100 away from the base 3 and the end of the second magnet assembly 200 away from the base 3, until all the ends of the first magnet assemblies 100 away from the mounting jig 1 and the ends of the second magnet assemblies 200 away from the mounting jig 1 press against the base 3 and are flush; then the motor component 10 and the mounting jig 1 are turned over, and the magnetic display card is used to test the polarity of each magnet installed on the outside of the motor component 10. If the magnetic display is incorrect, the magnet with the incorrect magnetic display is replaced with a magnet with the correct magnetic display.

[0062] Specifically, after using a magnetic display card to check that the magnets of the first magnet assembly 100 and the second magnet assembly 200 are correct, the latch portion is moved from bottom to top out of the receiving groove 11 to make room for the second magnet 72, and glue is applied at the installation position (the receiving groove 11 between the first magnet 71 and the third magnet 73). When installing the second magnet 72, each time a latch is removed, the vacated receiving groove 11 is glued, and then the second magnet 72 is inserted into the receiving groove 11 using the installation tool 5. Then, the latch is pushed downward to push the second magnet 72 into the glue-applying position, and the magnet is pressed with the latch. After the second magnet 72 is installed, the next latch is removed after each latch is removed, and this cycle is repeated to complete the installation of all 33 second magnets 72.

[0063] Specifically, after the second magnet 72 is installed, 33 fifth magnets 75 are installed in the same manner as the second magnet 72, and the installed magnet module 300 and latch are secured with cable ties. After all second magnets 72 and fifth magnets 75 are installed, the pressing jig provided during the preparation process needs to be installed on the base 3. The pressing jig is pressed down against the end of the second magnet 72 and the end of the fifth magnet 75 away from the base 3 until all the ends of the second magnet 72 and fifth magnet 75 away from the pressing jig are flush with the base 3.

[0064] Specifically, after the magnet module 300 is installed, the installation fixture 1 is removed, and the residual glue on the magnet module 300, the pin, the motor component 10 and other installation tools 5 is wiped with non-woven fabric and alcohol, and then the fixing ring 2 is installed again on the outside of the magnet module 300.

[0065] Specifically, after removing the mounting fixture 1 and installing the retaining ring 2, use the magnetic display card to check the polarity of all magnets in the magnet module 300 on the motor component 10. If any magnets display the incorrect polarity, replace them with magnets with the correct polarity. After the polarity of all magnets in the magnet module 300 is correct, use a non-woven cloth dipped in alcohol to wipe any residual glue on the magnet surfaces. Then, move the retaining ring 2 to expose the other ends of the magnets and clean any residual glue on the magnet surfaces.

[0066] Specifically, after the surface of the magnet module 300 is cleaned, a curing step is performed. During this curing step, to ensure the magnet module 300's adhesive bond and subsequent smooth demolding, the following operating steps and equipment parameters are used: The oven is an industrial constant-temperature oven with a temperature control range of room temperature to 200°C. When the actual oven temperature reaches 85°C, the motor component 10, the retaining ring 2, and the magnet module 300 are placed inside and heated to 90°C. A digital thermostat is used to maintain a constant temperature of 90°C, and the curing time is set to 2 hours to ensure that the adhesive is fully cured and achieves its designed strength and durability. To prevent high-temperature damage to the components, the motor component 10 and the retaining ring 2 are placed in the oven before being placed.

[0067] During the installation process of the aforementioned retaining ring 2, a uniform layer of release wax is applied to the side of the retaining ring 2 adjacent to the magnet module 300. The release wax used is a high-efficiency, industrial-grade release agent, with a coating thickness of 0.05-0.1 mm. During the coating process, a specialized coating tool, such as a silicone brush or coating roller, is used to evenly coat the entire contact surface, avoiding areas of excessive thickness or thinness. After coating, the release wax is allowed to stand for 5 minutes to form a stable release layer before assembling the retaining ring 2 and the magnet module 300.

[0068] Specifically, after baking is completed, the motor component 10 assembly is taken out and cooled to room temperature. The cooling method is natural air cooling to avoid damage to the magnet module 300 caused by thermal expansion and contraction stress caused by rapid cooling. After cooling is completed, the motor component 10 assembly is installed on the first demolding fixture 41, and the annular protrusion 421 of the second demolding member 42 is used to push the fixing ring 2 to smoothly move the fixing ring 2 away from the axial direction of the motor component 10. During operation, gently rotate the fixing ring 2 and push the second demolding member 42 to ensure that there is no severe impact or tearing during the demolding process, thereby avoiding damage to the bonding surface or the magnet module 300.

[0069] Specifically, after demolding, the magnet module 300 and the motor component 10 are visually inspected. First, high-precision optical inspection equipment (such as an industrial camera or microscope) is used to inspect the surface condition of the magnet module 300, including adhesive overflow, cracks, scratches, and the integrity of the magnet surface coating. For adhesive overflow areas, use flexible cleaning tools (such as dust-free cloths and alcohol solutions) to clean the residual glue to ensure that there is no foreign matter adhering to the magnet surface and that the magnet surface coating is not damaged. The appearance inspection of the motor component 10 needs to confirm that there are no collision marks and structural defects. At the same time, use cleaning tools to clean the non-operating areas to ensure that the assembly is complete.

[0070] The above-mentioned operations ensure high precision and consistency during the assembly of magnet module 300. Through rational fixture design, magnetic isolation member 6 positioning, and a step-by-step dispensing process, magnet spacing, adhesive coating uniformity, and magnet polarity consistency are effectively controlled. Repeated polarity testing and cleaning procedures reduce the occurrence of quality issues. The appropriate use of release wax and cable ties ensures the stability and ease of disassembly of magnet module 300, while preventing component damage, improving production efficiency and finished product qualification rate, and providing reliable technical support for the practical application of high-performance motors.

[0071] After cleaning, the motor component 10 and the magnet module 300 are tested using a dedicated mechanical performance testing device. The mechanical performance test includes the following steps:

[0072] 1. Dynamic balancing test: Place the motor component 10 on a dynamic balancing tester (with a testing accuracy of 1 mg) and test the balance of the motor component 10 at a standard speed of 2000-3000 rpm to ensure that the eccentricity does not exceed the design standard (e.g., ≤0.1 g·cm).

[0073] 2. Bonding strength test: Use a tensile testing machine to test the peeling strength of the bonding surface between the magnet and the motor component 10 at a constant tensile force (10-30N) to ensure that the bonding strength meets the design requirements (such as ≥15N / cm 2 ).

[0074] 3. Impact resistance test: Simulate the vibration environment in actual operation and use vibration test equipment (amplitude 0.1-0.5mm, frequency 50Hz) to test the durability of the components.

[0075] This is followed by electrical performance testing, including:

[0076] 1. Magnetic flux measurement: Place the motor component 10 together with the magnet module 300 mounted thereon in a magnetic flux tester to measure the magnetic flux density of the magnet at a standard working distance to ensure that the magnetic field strength meets the design range (e.g., 1.2-1.5T).

[0077] 2. Insulation test: Use a high-voltage insulation resistance tester to apply a rated voltage (eg, 1000V) between the magnet module 300 and the conductive part of the motor component 10 to detect whether the insulation resistance value meets the standard (eg, ≥10MΩ).

[0078] 3. Withstand voltage test: Apply transient high voltage (e.g., 1500V) to the magnet module 300 to test its withstand voltage performance and ensure that there is no breakdown or abnormality.

[0079] After the test is complete, all data is recorded and compared with the design specifications to ensure that the electrical and mechanical properties of the magnet module 300 and the motor component 10 meet the predetermined requirements. If the test passes, the assembly proceeds to the next step; if not, rework or repair is performed based on the test results.

[0080] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. An assembly process for a magnet module for a motor, characterized in that: The following steps are involved: S1, installing the motor component (10) on the base (3) and sleeve the fixing ring (2) on the outside of the motor component (10); S2, installing a mounting fixture (1) onto a motor component (10) or a base (3), wherein a plurality of receiving grooves (11) for matching a single magnet are provided on an outer side of the mounting fixture (1); S3, inserting a plurality of magnetic isolation members (6) into a plurality of receiving grooves (11) of the mounting fixture (1), respectively, with one end of the magnetic isolation member (6) protruding from the mounting fixture (1) and extending between the fixing ring (2) and the motor component (10); S4, applying an adhesive to the motor component (10) and / or the plurality of magnets, installing a first magnet and a second magnet that attract each other between the fixing ring (2) and the motor component (10), the first magnet and the second magnet forming an attractive magnetic group, and the attractive magnetic group being located between two adjacent magnetic isolation members (6); S5, the magnetic isolation member (6) is pulled out from the accommodating groove (11), and the third magnet is installed between the fixing ring (2) and the motor component (10) through the accommodating groove (11), the third magnet is located between two adjacent attractive magnetic groups, the third magnet repels the first magnet and the second magnet, and the first magnet, the second magnet, and the third magnet form the required magnet module (300) on the outside of the motor component (10).

2. The assembly process of the motor magnet module according to claim 1, wherein: The following steps are also included: S6, using a magnetic pole detection device to detect the polarity directions of all magnets in the magnet module (300) installed on the motor component (10), and removing the magnets if the polarity directions of the magnets are incorrectly installed and reworking them.

3. The assembly process of the motor magnet module according to claim 2, characterized in that: The following steps are also included: S7, placing the motor component (10), the magnet module (300) and the fixing ring (2) that have passed the magnetic pole detection device inspection into an oven, using the high temperature inside the oven to solidify the adhesive, and after the adhesive is solidified, using a demoulding jig (4) to demould the fixing ring (2) from the motor component (10), thereby completing the assembly of the magnet module (300).

4. The assembly process of the motor magnet module according to claim 1, wherein: The plurality of magnets provided in step S1 are divided into a plurality of first magnets (71), a plurality of second magnets (72), a plurality of third magnets (73), a plurality of fourth magnets (74), a plurality of fifth magnets (75) and a plurality of sixth magnets (76) by identification; The first magnet is the first magnet (71), the third magnet (73), the fourth magnet (74) or the sixth magnet (76); the second magnet is the sixth magnet (76), the fourth magnet (74), the third magnet (73) or the first magnet (71); the third magnet is the second magnet (72) or the fifth magnet (75); the first magnet (71), the second magnet (72), the third magnet (73), the fourth magnet (74), the fifth magnet (75) and the sixth magnet (76) correspond to each other one by one; a first magnet (71), a second magnet (72), a third magnet (73), a fourth magnet (74), a fifth magnet (75) and a sixth magnet (76) are combined to form a Halbach magnet group.

5. The assembly process of the motor magnet module according to claim 4, characterized in that: A first magnet (71) and a sixth magnet (76) are combined and bonded using an adhesive to form a first magnet assembly (100), and a third magnet (73) and a fourth magnet (74) are combined and bonded to form a second magnet assembly (200); the number of the first magnet assemblies (100) and the number of the second magnet assemblies (200) are both plural.

6. The assembly process of the motor magnet module according to claim 5, characterized in that: described (a) using an installation tool (5) to install a plurality of first magnet assemblies (100) between two adjacent magnetic isolation members (6), and leaving two magnetic isolation members (6) and two receiving grooves (11) between the two adjacent first magnet assemblies (100); (b) using an installation tool (5) to install the plurality of second magnet assemblies (200) between two magnetic isolation members (6) between two adjacent first magnet assemblies (100), and placing the first magnet (71) close to the third magnet (73); (c) extracting the magnetic isolation member (6) from the receiving groove (11), and inserting the second magnet (72) between the first magnet (71) of the first magnet assembly (100) and the third magnet (73) of the second magnet assembly (200); (d) The fifth magnet (75) is installed between the fourth magnet (74) of the second magnet assembly (200) and the sixth magnet (76) of the first magnet assembly (100).

7. The assembly process of the motor magnet module according to claim 1, wherein: The mounting jig (1) is provided with a plurality of holding blocks, and a holding block is formed between two adjacent accommodating grooves (11), and the holding block is used to press and hold the end of the magnet away from the base (3); after the first magnet and the second magnet are installed in step S4, the mounting jig (1) is pressed down so that the mounting jig (1) presses and holds the end of the first magnet away from the base (3) and the end of the second magnet away from the base (3) until the ends of all the first magnets away from the mounting jig (1) and the ends of the second magnets away from the mounting jig (1) press and hold on the base (3) and are flush.

8. The assembly process of the motor magnet module according to claim 1, wherein: After the third magnet is installed in step S5, the installation jig (1) is removed, and the pressing jig is installed on the motor component (10) or the base (3), and the pressing jig is pressed downward to press the end of the third magnet away from the base (3) until the end of all the third magnets away from the pressing jig contacts the base (3) and is flush.

9. The assembly process of the motor magnet module according to claim 3, wherein: The step S7 comprises setting the oven temperature at 80-90 degrees, placing the motor component (10), the magnet module (300) mounted on the motor component (10), and the fixing ring (2) in the oven and baking them for 2 hours, and applying demoulding wax on the side of the fixing ring (2) close to the motor component (10) before the fixing ring (2) is sleeved on the motor component (10) to facilitate demoulding of the fixing ring (2).

10. The assembly process of the motor magnet module according to claim 3, characterized in that: The demoulding jig (4) comprises a first demoulding member (41) and a second demoulding member (42), wherein the first demoulding member (41) comprises a first base (410) and a columnar protrusion (411) arranged thereon, wherein a mounting hole (412) for accommodating the shaft (101) of the motor component (10) is provided in the middle of the columnar protrusion (411), and the second demoulding member (42) comprises a second base (420) and an annular protrusion (421) arranged thereon, wherein the inner diameter of the annular protrusion (421) is larger than the outer diameter of the magnet module (300) mounted on the motor component (10) so that the annular protrusion (421) is sleeved on the magnet module (300) and contacts the fixing ring (2) for demoulding the fixing ring (2).

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