Assembly process of magnet module for motor

Abstract

The invention relates to the technical field of magnets, and particularly discloses an assembly process of a magnet module for a motor, which comprises the following steps: firstly, providing a motor component, a mounting jig, a fixing ring, a base, a demolding jig and a mounting tool, and providing a plurality of magnet classification identifiers; then the motor component is fixed to the base and sleeved with the fixing ring; then, a jig with a containing groove is installed, and the magnetism isolating part is inserted into the containing groove and extends into the space between the fixing ring and the motor part, so that a magnet installation interval is formed. After adhesive is coated on the motor component and the magnets, the first magnet and the second magnet which attract each other form an attraction magnetic group, and the attraction magnetic group is installed between the adjacent magnetism isolating pieces. And finally, the magnetic isolation piece is pulled out, and the third magnet repelling the attraction magnetic groups is arranged in the magnetic isolation piece, so that the third magnet is located between the two adjacent attraction magnetic groups, and a complete magnet module is formed. By means of the process, accurate installation of the magnet is achieved, magnetic interference is avoided, the operation process is simplified, and the assembling efficiency and the overall quality of the magnet module are improved.

Description

Technical Field

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

[0002] With the development of motor technology, external motor component motors have been widely used in the fields of industrial robots and high-performance servo motors due to their excellent heat dissipation performance and high torque density. The performance of external motor component motors directly depends on the installation accuracy and consistency of their magnet modules. In the traditional magnet module assembly process, the magnet gap and polarity consistency are difficult to ensure through traditional processes, which affects the performance and reliability of the motor; the glue dispensing process is prone to overflow or uneven coating, which complicates subsequent processes; in addition, the protection of non-operating areas in traditional processes is not sufficient, which may cause 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 technology, and realizes a high-efficiency, high-precision, and highly automated assembly process.

[0004] To achieve the above object, an assembly process of a motor magnet module of 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 a motor component or a base, wherein a plurality of receiving grooves for matching a single magnet are provided on an outer side of the mounting fixture;

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

[0009] S4, applying an adhesive on the motor component and / or the plurality of magnets, installing the first magnet and the second magnet that attract each other between the fixing ring and the motor component, the first magnet and the second magnet forming an attracting magnetic group, and the attracting magnetic group is 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 method further comprises the following steps:

[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 installed incorrectly, remove the magnet and rework it.

[0013] Furthermore, the method further comprises the following steps:

[0014] S7, putting the motor components, magnet modules and fixing rings that have passed 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 with an adhesive to form a first magnet assembly, and a third magnet and a fourth magnet are combined and bonded to form a second magnet assembly.

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

[0018] Using an installation tool, the plurality of first magnet assemblies are respectively installed between two adjacent magnetic isolation members, so that two magnetic isolation members and two containing grooves are left between the two adjacent first magnet assemblies;

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

[0020] Move out one end of the magnetic shielding member away from the fixed ring to make way for the portion of the accommodating groove close to the fixed ring (a convenient disassembly notch is provided on the magnetic shielding member, and when removing the magnetic shielding member, the magnetic shielding member can be removed by inserting an installation tool into the convenient disassembly notch), set an adhesive in the accommodating groove that has been made way, 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 out one end of the magnetic isolation member between the fourth magnet and the sixth magnet away from the fixed ring to make room for a portion of the accommodating groove close to the fixed ring, set an adhesive in the accommodating groove, and respectively install a plurality of fifth magnets in the accommodating grooves with the adhesive, so that the fifth magnets are 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, a holding block is formed between two adjacent receiving grooves, and the holding block is used to press against and hold one 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 against and holds one end of the first magnet away from the base and one end of the second magnet away from the base until all ends of the first magnet away from the mounting jig and the second magnet away from the mounting jig are pressed against the base and are flush.

[0023] Further, after the third magnet is installed, the installation jig is removed, and the pressing jig is installed on the motor component or the base, and the pressing jig is pressed down to press the end of the third magnet away from the base until the end of all the third magnets away from the pressing jig is pressed against the base and flush.

[0024] Furthermore, after the magnets are installed in step S5, the installation 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 step S7, 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, a 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 piece and a second demolding piece, the first demolding piece includes a first seat body 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 piece includes a second seat body and an annular protrusion arranged thereon, the inner diameter of the annular protrusion is larger than the outer diameter of the magnet module installed to the motor component so that it can be sleeved on the magnet module and abut against 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 the present invention uses a special installation fixture and a magnetic isolation piece to achieve precise positioning, and ensures correct pairing by classifying and marking the magnets and combining them in a preset sequence. During the assembly process, a magnetic pole detection device is used to perform multiple tests to ensure the polarity consistency of the magnets, and an innovative step-by-step dispensing and step-by-step installation process is used to achieve precise assembly of the magnets. At the same time, a curing process for the combination of a fixing ring and demoulding wax is set to ensure the overall stability of the magnet module and facilitate subsequent demoulding operations.

[0030] Beneficial effects of the present invention: Compared with the traditional process, the present invention solves the problem of uneven magnet gap through the 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, and the setting of protective parts effectively prevents contamination and component damage during the assembly process. In addition, the use of fixing 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 It 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 2A schematic diagram of the structure in which the intermediate magnetic part is moved out of the receiving groove by the installation tool;

[0034] Figure 4 for Figure 2 A schematic diagram of the structure of the decomposed state;

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

[0036] Figure 6 It is a schematic diagram of the structure of the demoulding jig of the present invention when demoulding;

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

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

[0039] Fig. 9 It is a schematic diagram of the arrangement of local magnetic poles of the magnet module after assembly of the present invention.

[0040] Reference numerals include:

[0041] 1. Mounting fixture; 10. Motor component; 11. Shaft; 2. Fixing ring; 3. Base; 4. Demolding fixture; 41. First demolding piece; 410. First seat; 411. Columnar protrusion; 412. Mounting hole; 42. Second demolding piece; 420. Second seat; 421. Annular protrusion; 5. Mounting tool; 6. Magnetic isolation piece; 61. Easy-to-remove notch; 11. Accommodating 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 the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

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

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

[0045] Work preparation: Provide installation jig 1, fixing ring 2, base 3, demoulding jig 4, installation tool 5, protective parts, magnetic pole detection device, magnetic isolation part 6, cleaning tools, oven and adhesive, provide multiple magnets and place them in sequence 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, the outer side of the mounting fixture 1 is provided with a plurality of receiving grooves 11 for matching a single magnet, 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 measuring surface of the mounting fixture 1, and 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 respectively, one end of the magnetic isolation member 6 protrudes out of the mounting fixture 1 and extends between the fixing ring 2 and the motor component 10, the magnetic isolation member 6 is roughly a straight thin sheet, preferably, the magnetic isolation member 6 is 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, it avoids the situation that the magnetic isolation member 6 is attracted by the magnetic force of the installed magnet and causes inconvenience in use;

[0049] S4, applying adhesive to the motor component 10 and / or multiple magnets. According to actual needs, the adhesive is manually applied to the motor component 10 or the magnet using a brush or a glue dispensing device. Of course, the adhesive can also be applied to the motor component 10 or the magnet using an automatic glue coating 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, the magnetic isolation member 6 is pulled out from the receiving groove 11, and the third magnet is installed between the fixing ring 2 and the motor component 10 through the receiving 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 outer side 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, if the polarity direction of the magnet is incorrectly installed, remove the magnet and rework it;

[0052] S7, put the motor component 10, magnet module 300 and fixing ring 2 that have passed the magnetic pole detection device into an oven, use the high temperature inside the oven to cure the adhesive, and after the adhesive is cured, use the demoulding fixture 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 work preparation, installation of magnetic shield 6, magnet assembly and detection, magnet installation, polarity detection and cleaning, curing demoulding and final performance test. Through precise fixture design, auxiliary positioning of magnetic shield 6 and step-by-step dispensing assembly process, the uniform spacing of magnets, consistent polarity and uniform adhesive coating are ensured. At the same time, magnetic pole detection devices, cleaning tools and special testing equipment are used to ensure that the mechanical and electrical properties of magnet module 300 meet the design standards.

[0054] Specifically, the motor component 10 provided in the work preparation is a rotor, and the mounting fixture 1 is a cylindrical fixture with multiple accommodating grooves 11 around a 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 fixture 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 outer side 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 seat 410 and a columnar protrusion 411 arranged thereon. The columnar protrusion 411 has a mounting hole 412 in the middle thereof for accommodating the shaft 11 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 seat 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 installed on 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), and its end 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 work preparation is completed, the plug operation is carried out, that is, the magnetic isolation component 6 is installed. First, the motor component 10 is covered with a masking glue (protective component) on the non-working 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 mounted 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 deviation).

[0058] Thereafter, the mounting fixture 1 is installed on the motor component 10 (the central opening is aligned with the shaft 11 of the motor component 10 for installation alignment); subsequently, a plurality of magnetic isolation components 6 are installed into the accommodating grooves 11 of the mounting fixture 1. After the magnetic isolation components 6 are installed, they are fixed in the mounting fixture 1 with cable ties. Thereafter, the mounting fixture 1 is lifted and three iron columns are inserted into the gap between the mounting fixture 1 and the motor component 10 to raise the mounting fixture 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 glue syringe, they are marked with lines (two red lines and two bars) using a greasy 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 glue syringe, they are marked with lines (two black lines and two bars) using a greasy 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 components 6 and clamped by the inner circular surface of the fixing ring 2 and the outer circular surface of the motor component 10; wherein two magnetic isolation components 6 (i.e., one installation gap) are left between 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 two adjacent accommodating grooves 11 on the mounting jig 1 is used to abut 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 abut 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 the magnetic display card to detect that each magnet of the first magnet assembly 100 and the second magnet assembly 200 is correct, the part of the plug is moved from bottom to top out of the receiving groove 11 to make room for the installation of 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 plug is removed, after the vacated receiving groove 11 is glued, the second magnet 72 is inserted into the receiving groove 11 using the installation tool 5, and then the plug is pushed downward to push the second magnet 72 into the glue application position, and the magnet is pressed with the plug. After the second magnet 72 is installed, the next plug is removed after one plug is removed, and this cycle is repeated to complete the installation of all the second magnets 72 (33).

[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 the latch are fixed with cable ties. After all the second magnets 72 and fifth magnets 75 are installed, the pressing jig provided during the operation preparation needs to be installed on the base 3, and the pressing jig is pressed down to press the end of the second magnet 72 away from the base 3 and the end of the fifth magnet 75 away from the base 3 until all the ends of the second magnets 72 and fifth magnets 75 away from the pressing jig are in contact with the base 3 and are flush.

[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 latch, 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 adding the fixing ring 2, the magnetic display card is used again to detect the polarity of all magnets in the magnet module 300 on the motor component 10. If the polarity of a magnet is displayed incorrectly, replace the magnet with the correct polarity. After the polarity of all magnets contained in the magnet module 300 is correct, use a non-woven cloth dipped in alcohol to wipe the residual glue on the surface of the magnet, then move the position of the fixing ring 2 to expose the other end of the magnet, and clean the residual glue on the surface of the magnet.

[0066] Specifically, after the surface of the magnet module 300 is cleaned, a curing step is performed. In the curing step, in order to ensure the bonding firmness of the magnet module 300 and the smooth subsequent demoulding, the following operating steps and device parameters are adopted: the oven is an industrial constant temperature oven, and the temperature control range is from room temperature to 200°C. When the actual temperature of the oven reaches 85°C, the motor component 10, the fixing ring 2 and the magnet module 300 are placed in it and heated to 90 degrees. The digital constant temperature controller is used to control the constant temperature at 90 degrees. The curing time is set to 2 hours to ensure that the adhesive is fully cured and reaches its designed strength and durability. In order to prevent high temperature from damaging the components, the motor component 10 and the fixing ring 2 are placed in the oven before being placed in the oven.

[0067] During the installation of the aforementioned fixing ring 2, a layer of demoulding wax is evenly coated on the side close to the magnet module 300. The demoulding wax used is an industrial high-efficiency demoulding agent with a coating thickness of 0.05-0.1mm. During the coating process, a special coating tool such as a silicone brush or a coating roller is used to evenly cover the entire contact surface to avoid local excessive thickness or thinness. After the coating is completed, let it stand for 5 minutes. After the demoulding wax forms a stable demoulding layer, the fixing ring 2 and the magnet module 300 are assembled.

[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 member 41 of the demolding fixture 4, 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 check 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, and use cleaning tools to clean the non-operating areas to ensure that the assembly is complete.

[0070] The above operation ensures high precision and high consistency of the magnet module 300 during the assembly process. Through reasonable jig design, magnetic isolation component 6 positioning and step-by-step dispensing process, the magnet spacing, adhesive coating uniformity and magnet polarity consistency are effectively controlled. Repeated polarity detection and cleaning work reduces the occurrence of quality problems. Reasonable use of release wax and cable ties ensures the stability and easy disassembly of the magnet module 300, while avoiding component damage, improving production efficiency and finished product qualification rate, and providing reliable technical guarantee 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 (eg, ≤0.1 g·cm).

[0073] 2. Bonding strength test: Use a tensile testing machine to test the peel strength of the bonding surface between the magnet and the motor component 10 with 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 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 (eg, 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 (such as 1500V) to the magnet module 300 to test its withstand voltage performance to ensure that there is no breakdown or abnormal phenomenon.

[0079] After the test is completed, all data are recorded and compared with the design standards 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 enters the next process; 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 will be changes in the specific implementation methods and application scopes. The content 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) on 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 out of 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) or / and a 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 attracting magnetic group, and the attracting magnetic group being located between two adjacent magnetic isolation members (6); S5, the magnetic isolation member (6) is pulled out from the receiving groove (11), and the third magnet is installed between the fixing ring (2) and the motor component (10) through the receiving 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, characterized in that: 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 if the polarity direction of the magnet is installed incorrectly, the magnet is removed and reworked.

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, and using the high temperature inside the oven to solidify the adhesive. After the adhesive is solidified, using a demoulding jig (4) to demould the fixing ring (2) from the rotor (10) to complete the assembly of the magnet module (300).

4. The assembly process of the motor magnet module according to claim 1, characterized in that: 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 by 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: Said (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 two adjacent first magnet assemblies (100); (b) using an installation tool (5) to respectively install the plurality of second magnet assemblies (200) between two magnetic isolation members (6) between two adjacent first magnet assemblies (100), and to arrange the first magnet (71) close to the third magnet (73); (c) pulling the magnetic isolation member (6) out of the receiving groove (11), and installing 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, characterized in that: The installation jig (1) is provided with a plurality of holding blocks, a holding block is formed between two adjacent accommodating grooves (11), and the holding block is used to abut against 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 installation jig (1) is pressed down so that the installation jig (1) abuts against 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 installation jig (1) and the ends of the second magnets away from the installation jig (1) abut against and are flush with the base (3).

8. The assembly process of the motor magnet module according to claim 1, characterized in that: 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, characterized in that: 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; before the fixing ring (2) is sleeved on the motor component (10), a demoulding wax is applied on a side of the fixing ring (2) close to 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 piece (41) and a second demoulding piece (42), the first demoulding piece (41) comprising a first seat (410) and a columnar protrusion (411) arranged thereon, a mounting hole (412) for accommodating the shaft (11) of the motor component (10) is arranged in the middle of the columnar protrusion (411), the second demoulding piece (42) comprising a second seat (420) and an annular protrusion (421) arranged thereon, the inner diameter of the annular protrusion (421) being larger than the outer diameter of the magnet module (300) mounted on the motor component (10) so that it is sleeved on the magnet module (300) and contacts the fixing ring (2) for demoulding the fixing ring (2).

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