Assembly method of reusable tooling target components

Abstract

This invention discloses a method for assembling a target assembly with reusable tooling, comprising the following steps: S1, setting the base horizontally and placing the limiting member on the base; S2, placing the target limiting tooling on the base; S3, sequentially inserting the baffle, stator lamination, and gap ring from the top of the limiting member, so that the gap ring, stator lamination, and baffle are sequentially fitted onto the limiting member from top to bottom, with the lower end of the gap ring, stator lamination, and baffle positioned between the limiting member and the target limiting tooling; S4, placing the pressure cap on the top of the limiting member, so that the bottom end of the pressure cap abuts against the top surface of the gap ring; S5, applying pressure to the top surface of the pressure cap using hydraulic equipment to align the baffle, stator lamination, and gap ring horizontally; S6, fixing the gap ring to the target limiting tooling using bolts; S7, removing the pressure cap, disassembling the base and the target limiting tooling, and removing the base and the limiting member. The above method improves the assembly efficiency of the target material components.

Description

Technical Field

[0001] This invention relates to the field of magnetic levitation motor shaft technology, and in particular to a method for assembling a target material assembly with reusable tooling. Background Technology

[0002] Magnetic levitation high-speed motors have advantages such as high energy density, small structural size, and high efficiency. They are currently widely used in industrial fields such as micro gas turbines, high-speed centrifugal compressors, molecular pumps, high-speed machining centers, and flywheel energy storage. In order to enable the motor to operate efficiently and stably, a target material assembly is often fitted on the rotor spindle to improve the rotor's rigidity and dynamic balance.

[0003] The target assembly includes a gap ring, stator laminations, baffles, and target positioning fixtures. Currently, when assembling the target assembly, the baffles, stator laminations, and gap rings are typically placed into the target positioning fixtures sequentially from top to bottom, and pressure is manually applied to the gap rings to align them horizontally. This assembly method is time-consuming and labor-intensive, and after assembly, the baffles, stator laminations, and gap rings are prone to misalignment and poor parallelism, resulting in low overall mechanical strength of the target assembly. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a method for assembling a target assembly with reusable tooling. This method improves the assembly efficiency of the target assembly and makes the structure of the assembled target assembly more stable.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A method for assembling a target assembly with reusable tooling, used for assembling the target assembly using a tooling device; the target assembly includes a gap ring, stator laminations, a baffle, and a target limiting tooling; the tooling device includes a base, a limiting component, and a pressure cap; the assembly method includes the following steps:

[0007] S1. Set the base horizontally and place the limiting component on the base to fix the limiting component to the base.

[0008] S2. Set the target limiting fixture on the base, so that the target limiting fixture is fixedly connected to the base;

[0009] S3. Insert the baffle, stator lamination and gap ring into the limiting part in sequence from the top, so that the gap ring, stator lamination and baffle are fitted onto the limiting part from top to bottom, and the lower end of the gap ring, stator lamination and baffle are positioned between the limiting part and the target material limiting fixture.

[0010] S4. Place the pressure cap on top of the specified limiting component, so that the bottom end of the pressure cap abuts against the top surface of the gap ring.

[0011] S5. Use hydraulic equipment to apply pressure to the top surface of the gland to level the baffle, stator laminations and clearance ring.

[0012] S6. Use bolts to fix the gap ring to the target material limiting fixture;

[0013] S7. Remove the pressure cap, separate the base from the target material limiting fixture, and remove the base and limiting parts.

[0014] Furthermore, the base has a first mounting groove and a first fastener in the middle, and the bottom of the limiting member has a first threaded hole; step S1 specifically involves: setting the limiting member on the base so that the limiting member and the base are in clearance fit; the first fastener passes through the first mounting groove and is threadedly connected to the first threaded hole so that the limiting member and the base are fixedly connected.

[0015] Furthermore, the base has a second mounting groove and a second fastener at both ends, and the target limiting fixture has a second threaded hole at both ends at the bottom; step S2 is specifically: the target limiting fixture is placed on the base, so that the target limiting fixture and the base are in clearance fit; the second fastener passes through the second mounting groove and is threadedly connected to the second threaded hole, so that the target limiting fixture is fixedly connected to the base.

[0016] Furthermore, a first connecting part is provided around the top of the target limiting fixture, and a first through hole is provided at both ends of the first connecting part; a second connecting part is provided around the lower side of the outer wall of the gap ring, and a second through hole is provided at both ends of the second connecting part; the bolt includes a screw, a nut, a washer, and a nut; step S6 specifically involves: passing the screw through the second through hole and the first through hole from top to bottom until the nut abuts against the top surface of the second connecting part, fitting the washer onto the lower end of the screw, and locking it with the nut to fix the gap ring to the target limiting fixture.

[0017] This invention provides a method for assembling a target assembly using reusable tooling. By fitting the baffle, stator laminations, and gap ring onto the limiting component, misalignment of the baffle, stator laminations, and gap ring during the assembly process is prevented. Simultaneously, applying pressure to the pressure cap using hydraulic equipment allows for horizontal alignment of the baffle, stator laminations, and gap ring, saving time and manpower required for assembling the target assembly and improving the parallelism between the baffle, stator laminations, and gap ring after assembly, thereby enhancing the structural stability of the target assembly. Furthermore, sequentially assembling the limiting component, target limiting tooling, baffle, stator laminations, gap ring, and pressure cap avoids jamming and collisions between components during assembly, improving the assembly efficiency of the target assembly. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the tooling device and target assembly provided by the present invention after assembly;

[0019] Figure 2 This is a cross-sectional view of the completed assembly of the limiting component and the target limiting fixture provided by the present invention;

[0020] Figure 3 This is a cross-sectional view of the target limiting tool and the gap ring assembled according to the present invention;

[0021] Figure 4 This is a cross-sectional view of the assembled target assembly provided by the present invention;

[0022] Figure 5 This is a step diagram of the assembly method provided by the present invention. Detailed Implementation

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present invention.

[0024] This embodiment provides a method for assembling a target assembly with reusable tooling, which is used for installing the target assembly using a tooling device.

[0025] like Figure 1 As shown, the target assembly includes a gap ring 11, a stator lamination 12, and a baffle 13 arranged sequentially from top to bottom, and also includes a target limiting fixture 14 sleeved on the gap ring 11, stator lamination 12, and baffle 13. The fixture includes a base 21 and a limiting member 22. The limiting member 22 is mounted on the base 21, and the gap ring 11, stator lamination 12, and baffle 13 are sequentially sleeved on the limiting member 22 from top to bottom. The target limiting fixture 14 is mounted on the base 21. With the above configuration, the base 21 can be used to fix the target material limiting fixture 14, and the limiting member 22 can restrict the movement of the gap ring 11, stator lamination 12, and baffle 13 along the radial direction of the limiting member 22, so as to prevent the gap ring 11, stator lamination 12, and baffle 13 from interleaving or misaligning within the target material limiting fixture 14; thus, after the target material assembly is heated and installed, the target material limiting fixture 14 will not be unable to be removed due to the expansion and compression of the gap ring 11, stator lamination 12, and baffle 13, allowing the target material limiting fixture 14 to be reused repeatedly, saving costs. To more clearly illustrate the technical solution of the present invention, the following are also defined: Figure 1 The top, bottom, left, and right sides are shown.

[0026] Specifically, the outer diameter of the bottom of the gap ring 11, the outer diameter of the stator lamination 12, and the outer diameter of the baffle 13 are basically equal, and the difference between them and the inner diameter of the target limiting fixture 14 is greater than or equal to 0.4 mm. The inner diameter of the gap ring 11, the inner diameter of the stator lamination 12, and the inner diameter of the baffle 13 are basically equal, and the difference between them and the outer diameter of the limiting member 22 is greater than or equal to 0.06 mm and less than or equal to 0.4 mm. Through the above settings, while ensuring that the gap ring 11, the stator lamination 12, and the baffle 13 can be fitted onto the limiting member 22, the limiting member 22 can restrict the movement of the gap ring 11, the stator lamination 12, and the baffle 13 along the radial direction of the limiting member 22.

[0027] like Figure 2 As shown, when the base 21, the limiting member 22, and the target limiting fixture 14 are assembled, the base 21 and the limiting member 22 are clearance-fitted to facilitate assembly. The base 21 has a first mounting groove 211 and a first fastener 212 in the middle, and the limiting member 22 has a first threaded hole 221 at its bottom. The front end of the first fastener 212 passes through the first mounting groove 211 and is threaded into the first threaded hole 221, while the rear end is engaged within the first mounting groove 211, thus fixing the limiting member 22 to the base 21. The first fastener 212 can be configured as an internal hex bolt to make the connection between the base 21 and the limiting member 22 more convenient and reliable. Specifically, the screw portion of the first fastener 212 passes through the first mounting groove 211 and is threaded into the threaded hole at the bottom of the limiting member 22, while the nut portion is engaged within the first mounting groove 211 to fix the limiting member 22 to the base 21. Understandably, the first fastener 212 can also be a screw, pin, or other fastener, as long as it can securely connect the limiting member 22 to the base 21.

[0028] The base 21 is clearance-fitted with the target limiting fixture 14 to facilitate assembly between them. The base 21 has second mounting grooves 213 and second fasteners 214 on both its left and right sides. The target limiting fixture 14 has second threaded holes 141 at both ends of its bottom. The front end of the second fastener 214 passes through the second mounting groove 213 and is threaded into the second threaded hole 141, while the rear end is secured within the second mounting groove 213. The second fastener 214 can be a hex socket head cap screw to ensure a more convenient and secure connection between the target limiting fixture 14 and the second fastener 214. Alternatively, the second fastener 214 can be a screw, pin, or other fastener. It is understandable that multiple second fasteners 214 can be provided around the base 21 to accommodate various assembly requirements.

[0029] like Figure 2As shown, the limiting member 22 has a chamfer 222 around its top to guide the gap ring 11, stator lamination 12, baffle 13 and pressure cap 23 to be fitted onto the limiting member 22, thereby improving the ease of assembly of the target material assembly and tooling device.

[0030] like Figure 1 As shown, the tooling device also includes a pressure cap 23, which includes a cover surface 231 and a cover body 232. The cover surface 231 is generally horizontal; the cover body 232 surrounds the bottom surface of the cover surface 231. The cover body 232 is at least partially fitted onto the limiting member 22, and its bottom surface abuts against the gap ring 11. The pressure cap 23 is used to cooperate with the hydraulic press to perform horizontal alignment of the gap ring 11, stator lamination 12, and baffle 13, ensuring that there are no gaps between the surfaces when they abut, thus guaranteeing the overall strength of the target assembly. Specifically, the difference between the inner diameter of the cover body 232 and the outer diameter of the limiting post is greater than or equal to 0.06 mm and less than or equal to 0.4 mm to prevent uneven stress on the cover body 232 and the gap ring 11 due to misalignment when the hydraulic press applies pressure to the pressure cap 23. Furthermore, the shortest vertical distance h between the bottom surface of the cover 231 and the limiting member 22 is greater than a preset spacing threshold, so as to prevent the bottom surface of the cover 231 from contacting the limiting member 22 when the top surface of the pressure cap 23 is under force, which would cause the limiting member 22 to be under force and damage the target material assembly and tooling device. The spacing threshold can be adjusted according to actual needs.

[0031] like Figure 3 As shown, a first connecting portion 142 is provided around the top periphery of the target limiting fixture 14, and a second connecting portion 111 is provided around the lower side of the outer wall of the gap ring 11. The left and right ends of the first connecting portion 142 and the second connecting portion 111 can be connected by a third fastener 15. The third fastener 15 can be a bolt, including a nut 151, a washer 152, and an integrally formed screw 153 and a nut 154. Specifically, the first connecting portion 142 has a first through hole 1421, and the second connecting portion 111 has a second through hole 1111; the screw 153 portion of the third fastener 15 can pass through the second through hole 1111 and the first through hole 1421, and is threadedly connected to the nut 151 to fix the first connecting portion 142 and the second connecting portion 111. More specifically, a washer 152 is provided between the nut 151 and the first connecting portion 142 to increase the contact area between the nut 151 and the first connecting portion 142, thereby improving the fixing strength of the third fastener 15 to the first connecting portion 142 and the second connecting portion 111. Furthermore, the inner diameter of the first through hole 1421 is larger than the inner diameter of the second through hole 1111 to prevent the screw 153 of the third fastener 15 from partially contacting the target material limiting fixture 14, thus avoiding inconvenience in removing the target material limiting fixture 14. When the target material assembly is fitted onto the rotor mandrel, the nut 151 of the third fastener 15 can be removed, and the target material limiting fixture 14 can be taken out for reuse, saving costs.

[0032] A stepped surface 143 is provided on the bottom of the inner wall of the target limiting fixture 14, which is used to support the baffle 13. The target limiting fixture 14 has corner clearing slots 144 around the top surface of the stepped surface 143, which are used to avoid the baffle 13.

[0033] like Figure 4 As shown, the assembly method provided in this embodiment specifically includes the following steps:

[0034] S1. Set the base 21 in a horizontal direction and set the limiting member 22 on the base 21 so that the limiting member 22 is fixedly connected to the base 21.

[0035] S2. Set the target limiting fixture 14 on the base 21 so that the target limiting fixture 14 is fixedly connected to the base 21.

[0036] S3. Insert the baffle 13, stator lamination 12 and gap ring 11 into the limiting member 22 in sequence from the top, so that the gap ring 11, stator lamination 12 and baffle 13 are fitted onto the limiting member 22 from top to bottom, and the lower end of the gap ring 11, the stator lamination 12 and the baffle 13 are positioned between the limiting member 22 and the target material limiting fixture 14.

[0037] S4. Place the pressure cap 23 on top of the book-written limiting member 22, so that the bottom end of the pressure cap 23 abuts against the top surface of the gap ring 11.

[0038] S5. Use hydraulic equipment to apply pressure to the top surface of the cover 23 to calibrate the baffle 13, stator lamination 12 and gap ring 11 horizontally.

[0039] S6. Use bolts to fix the lower end of the gap ring 11 to the top of the target limiting fixture 14.

[0040] S7. Remove the pressure cap 23; separate the base 21 from the target limiting fixture 14, and remove the base 21 and the limiting part 22.

[0041] The assembled target assembly, such as Figure 5 As shown. Through the above assembly method, the limiting member 22 can restrict the displacement of the baffle 13, stator lamination 12, and gap ring 11 along the radial direction of the limiting member 22, preventing the baffle 13, stator lamination 12, and gap ring 11 from becoming mixed and disordered within the target material limiting fixture 14. At the same time, by applying pressure to the pressure cap 23 with hydraulic equipment to perform horizontal alignment of the baffle 13, stator lamination 12, and gap ring 11, the time and manpower required for assembling the target material assembly can be saved, and the parallelism between the baffle 13, stator lamination 12, and gap ring 11 after assembly can be improved, thereby improving the stability of the target material assembly structure.

[0042] like Figure 2 and Figure 4As shown, step S1 specifically involves: setting the limiting member 22 vertically on the base 21, so that the limiting member 22 and the base 21 are in clearance fit; the first fastener 212 passes through the first mounting groove 211 and is threadedly connected to the first threaded hole 221, so that the limiting member 22 and the base 21 are fixedly connected. Through the above method, the assembly between the limiting member 22 and the base 21 is more convenient and stable.

[0043] like Figure 2 and Figure 4 As shown, step S2 specifically involves: vertically mounting the target material limiting fixture 14 on the base 21, ensuring a clearance fit between the target material limiting fixture 14 and the base 21; and threading the second fastener 214 through the second mounting groove 213 and the second threaded hole 141 to fix the target material limiting fixture 14 to the base 21. This method makes the assembly between the target material limiting fixture 14 and the base 21 more convenient. When the base 21 and the limiting component 22 need to be removed later, only the target material limiting fixture 14 and the base 21 need to be disassembled, saving time in disassembling the target material assembly and the fixture device.

[0044] like Figure 3 and Figure 4 As shown, step S6 specifically involves: passing the screw 153 from top to bottom through the second through hole 1111 and the first through hole 1421 until the nut 154 abuts against the top surface of the second connecting part 111; fitting the washer 152 onto the lower end of the screw 153; and locking it with the nut 151, thereby fixing the gap ring 11 to the target material limiting fixture 14. Through the above arrangement, the connection between the target material limiting fixture 14 and the gap ring 11 is more convenient. Simultaneously, after the target material assembly is installed on the rotor spindle of the motor, the target material limiting fixture 14 can be removed more easily, facilitating its repeated use.

[0045] In summary, this application provides a method for assembling a target assembly with reusable tooling. First, the limiting member 22 and the target limiting tooling 14 are fixed. Then, the baffle 13, stator lamination 12, and gap ring 11 are fitted onto the limiting member 22. This avoids misalignment caused by the baffle 13, stator lamination 12, and gap ring 11 moving radially along the limiting member 22. By setting a pressure cap 23 on the gap ring 11 and applying pressure to the pressure cap 23 using hydraulic equipment, the baffle 13, stator lamination 12, and gap ring 11 are horizontally aligned. This saves the time and manpower required for pressing the baffle 13, stator lamination 12, and gap ring 11, improves the parallelism between the baffle 13, stator lamination 12, and gap ring 11 after assembly, and thus improves the mechanical strength of the target assembly. In addition, by sequentially assembling the limiting component 22, the target limiting fixture 14, the baffle 13, the stator lamination 12, the gap ring 11, and the pressure cap 23, problems such as jamming and collision between the various parts of the target assembly and the fixture can be avoided, thus improving the assembly efficiency of the target assembly.

[0046] The foregoing description of embodiments of the present invention, through which those skilled in the art are able to implement or use the present invention, will be readily apparent to those skilled in the art. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A method for assembling a target assembly using reusable tooling, for assembling the target assembly using a tooling device, characterized in that, The target assembly includes a gap ring (11), a stator lamination (12), a baffle (13), and a target limiting fixture (14); the fixture includes a base (21), a limiting component (22), and a pressure cap (23); the assembly method includes the following steps: S1. Set the base (21) in the horizontal direction and set the limiting member (22) on the base (21) so that the limiting member (22) is fixedly connected to the base (21); S2. The target material limiting fixture (14) is placed on the base (21) so that the target material limiting fixture (14) is fixedly connected to the base (21); S3. Insert the baffle (13), the stator lamination (12) and the gap ring (11) sequentially from the top of the limiting member (22), so that the gap ring (11), the stator lamination (12) and the baffle (13) are sequentially fitted onto the limiting member (22) from top to bottom, and the lower end of the gap ring (11), the stator lamination (12) and the baffle (13) are positioned between the limiting member (22) and the target material limiting fixture (14); S4. The pressure cap (23) is fitted onto the top of the limiting member (22) so that the bottom end of the pressure cap (23) abuts against the top surface of the gap ring (11); S5. Apply pressure to the top surface of the cover (23) using hydraulic equipment to perform horizontal alignment of the baffle (13), the stator lamination (12) and the gap ring (11); S6. Use bolts to fix the gap ring (11) to the target limiting fixture (14); S7. Remove the pressure cap (23); separate the base (21) from the target material limiting fixture (14), and remove the base (21) and the limiting member (22).

2. The method for assembling a target assembly with reusable tooling as described in claim 1, characterized in that, The base (21) is provided with a first mounting groove (211) and a first fastener (212) in the middle, and the bottom of the limiting member (22) is provided with a first threaded hole (221); the step S1 is specifically: the limiting member (22) is set on the base (21) so that the limiting member (22) and the base (21) are in clearance fit; the front end of the first fastener (212) passes through the first mounting groove (211) and is threadedly connected to the first threaded hole (221), and the rear end is locked in the first mounting groove (211) so that the limiting member (22) and the base (21) are fixedly connected.

3. The method for assembling a target assembly with reusable tooling as described in claim 1, characterized in that, The base (21) has a second mounting groove (213) and a second fastener (214) at its left and right ends. The target material limiting fixture (14) has a second threaded hole (141) at its left and right ends at its bottom. Step S2 is as follows: the target material limiting fixture (14) is set on the base (21) so that the target material limiting fixture (14) and the base (21) are in clearance fit. The front end of the second fastener (214) passes through the second mounting groove (213) and is threadedly connected to the second threaded hole (141). The rear end is locked in the second mounting groove (213) so that the target material limiting fixture (14) and the base (21) are fixedly connected.

4. The method for assembling a target assembly with reusable tooling as described in claim 1, characterized in that, A first connecting part (142) is provided around the top of the target limiting fixture (14), and a first through hole (1421) is provided at the left and right ends of the first connecting part (142). A second connecting part (111) is provided around the lower side of the outer wall of the gap ring (11), and a second through hole (1111) is provided at the left and right ends of the second connecting part (111). The bolt includes a nut (151), a washer (152), a screw (153), and a nut (154). Step S6 is specifically as follows: the screw (153) is passed through the second through hole (1111) and the first through hole (1421) from top to bottom until the nut (154) abuts against the top surface of the second connecting part (111). The washer (152) is fitted onto the lower end of the screw (153). The nut (151) is used to lock the gap ring (11) and the target limiting fixture (14).

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