Tool assembly of target material assembly

Abstract

The utility model discloses a tool assembly of a target material assembly, and the target material assembly comprises a gap ring, a stator punching sheet and a baffle plate which are sequentially arranged from top to bottom, and also comprises a target material limiting tool which is sleeved on the gap ring, the stator punching sheet and the baffle plate; the tool assembly comprises a base and a limiting piece, the limiting piece is arranged on the base, the spacer ring, the stator punching sheet and the baffle are sequentially arranged on the limiting piece in a sleeving mode from top to bottom, and the target material limiting tool is arranged on the base. Through the arrangement, after the target material assembly is heated and installed, the situation that the target material limiting tool cannot be disassembled due to expansion extrusion of the gap ring, the stator punching sheet and the baffle is avoided, the target material assembly can be repeatedly used, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic suspension motor shafts, in particular to a tooling assembly of a target assembly. Background Art

[0002] Magnetic levitation high-speed motors have the advantages of 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 installed on the rotor core shaft to improve the rotor's stiffness and dynamic balance.

[0003] The target assembly includes a stator sheet baffle, stator sheets, a gap ring, and a target limiting fixture. During design, the inner diameter of the target limiting fixture is often made slightly larger so that it can fit over the stator sheet baffle, stator sheets, and gap ring. However, after being installed in the target limiting fixture, the stator sheet baffle, stator sheets, and gap ring will become intertwined and misaligned because they are not restrained within the target limiting fixture. When the target assembly is heated and inserted into the rotor core shaft, the gap ring and stator sheet baffle will expand and squeeze the target limiting fixture, making it impossible to disassemble and reuse the target limiting fixture. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the purpose of the present invention is to provide a tooling assembly for a target assembly, which enables the target assembly to be reused.

[0005] Based on the above purpose, the present invention adopts the following technical solutions:

[0006] A tooling assembly for a target assembly, the target assembly comprising a gap ring, a stator punching sheet and a baffle arranged in sequence from top to bottom, and also comprising a target limiting tooling sleeved on the gap ring, the stator punching sheet and the baffle; the tooling assembly comprises a base and a limiting piece, the limiting piece is mounted on the base, the gap ring, the stator punching sheet and the baffle are sleeved on the limiting piece in sequence from top to bottom, and the target limiting tooling is mounted on the base.

[0007] Furthermore, the inner diameters of the gap ring, the inner diameters of the stator punching sheet and the inner diameters of the baffle are substantially equal, and the differences between the inner diameters of the gap ring and the outer diameters of the limiting member are all greater than or equal to 0.06 mm and less than or equal to 0.4 mm.

[0008] Furthermore, the base is clearance-matched with the limiting member; a first mounting groove and a first fastener are provided in the middle of the base, the front end of the first fastener can pass through the first mounting groove and be threadedly connected to the limiting member, and the rear end of the first fastener is clamped in the first mounting groove.

[0009] Furthermore, the base is clearance-matched with the target material limiting tooling; a second mounting groove and a second fastener are provided on both the left and right sides of the base, the front end of the second fastener can pass through the second mounting groove and be threadedly connected to the target material limiting tooling, and the rear end of the second fastener is clamped in the second mounting groove.

[0010] Furthermore, the tooling assembly includes a pressure cover, which includes a cover surface arranged in a horizontal direction and a cover body arranged around the cover surface; the cover body is at least partially sleeved on the limiting member, and the bottom surface abuts against the gap ring.

[0011] Furthermore, the shortest distance between the bottom surface of the cover and the limiting member along the vertical direction is greater than a preset spacing threshold.

[0012] Furthermore, the limiting member is provided with a chamfer around its top.

[0013] The utility model provides a tooling assembly for a target assembly, which limits the movement of the gap ring, the stator punching sheet and the baffle in the radial direction of the limiter by arranging a limiter, thereby preventing the gap ring, the stator punching sheet and the baffle from being mixed and misplaced in the target material limiting tooling; therefore, after the target assembly is heated and installed, the target material limiting tooling will not be unable to be removed due to the expansion and extrusion of the gap ring, the stator punching sheet and the baffle, so that the target material limiting tooling can be used repeatedly, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of the tooling assembly provided according to the utility model. DETAILED DESCRIPTION

[0015] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] like Figure 1As shown, this embodiment provides a tooling assembly for a target assembly. The target assembly includes a gap ring 11, a stator sheet 12, and a baffle 13, which are sequentially arranged from top to bottom. It also includes a target limiting tooling 14 that is sleeved over the gap ring 11, the stator sheet 12, and the baffle 13. The tooling assembly includes a base 21 and a limiting member 22. The limiting member 22 is mounted on the base 21. The gap ring 11, the stator sheet 12, and the baffle 13 are sequentially sleeved over the limiting member 22 from top to bottom. The target limiting tooling 14 is mounted on the base 21. Through the above-mentioned arrangement, the base 21 can be used to fix the target material limiting fixture 14, and the limiting member 22 can limit the movement of the gap ring 11, the stator punching sheet 12 and the baffle 13 along the radial direction of the limiting member 22, so as to prevent the gap ring 11, the stator punching sheet 12 and the baffle 13 from being mixed and misaligned in the target material limiting fixture 14; thus, after heating and installing the target assembly, the target material limiting fixture 14 will not be unable to be removed due to the expansion and extrusion of the gap ring 11, the stator punching sheet 12 and the baffle 13, so that the target material limiting fixture 14 can be used repeatedly, saving costs. In order to more clearly illustrate the technical solution of the present utility model, it is also defined as follows: Figure 1 Top, bottom, left, and right sides shown.

[0017] Specifically, the bottom outer diameter of the gap ring 11, the outer diameter of the stator punching 12, and the outer diameter of the baffle 13 are substantially equal, and the difference with the inner diameter of the target material 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 punching 12, and the inner diameter of the baffle 13 are substantially equal, and the difference with 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 arrangement, while ensuring that the gap ring 11, the stator punching 12, and the baffle 13 can be sleeved on the limiting member 22, the limiting member 22 can limit the movement of the gap ring 11, the stator punching 12, and the baffle 13 in the radial direction of the limiting member 22.

[0018] The base 21 and the limiting member 22 are clearance-matched to facilitate assembly between the base 21 and the limiting member 22. A first mounting groove 211 and a first fastener 212 are provided in the middle of the base 21. The front end of the first fastener 212 can pass through the first mounting groove 211 and be threadedly connected to the limiting member 22. The rear end of the first fastener 212 is retained in the first mounting groove 211, thereby securing the limiting member 22 to the base 21. The first fastener 212 can be configured as a hexagon socket bolt to facilitate and secure the connection between the base 21 and the limiting member 22. Specifically, the screw portion of the first fastener 212 can pass through the first mounting groove 211 and be threadedly connected to a threaded hole provided at the bottom of the limiting member 22. The nut portion is retained in the first mounting groove 211 to securely secure the limiting member 22 to the base 21. It is understood that the first fastener 212 can also be configured as a screw, latch, or other fastener, as long as it is capable of securing the limiting member 22 to the base 21.

[0019] The base 21 and the target limiting fixture 14 are clearance-matched to facilitate assembly between the base 21 and the target limiting fixture 14. A second mounting groove 213 and a second fastener 214 are provided on both the left and right sides of the base 21. The front end of the second fastener 214 can pass through the second mounting groove 213 and be threadedly connected to the target limiting fixture 14, and the rear end of the second fastener 214 is clamped in the second mounting groove 213. The second fastener 214 can be set as a hexagon socket bolt to make the connection between the target limiting fixture 14 and the second fastener 214 more convenient and secure. The second fastener 214 can also be set as a screw, a latch or other fastener. It is understandable that multiple second fasteners 214 can be set around the base 21 to meet various assembly requirements.

[0020] The tooling assembly also includes a pressure cover 23, which includes a cover surface 231 and a cover body 232. The cover surface 231 is basically arranged in the horizontal direction; the cover body 232 is arranged around the bottom surface of the cover surface 231. The cover body 232 is at least partially mounted on the limiter 22, and the bottom surface of the cover body 232 abuts against the gap ring 11. The pressure cover 23 is used to cooperate with the hydraulic press to perform horizontal calibration on the gap ring 11, the stator punching 12 and the baffle 13 to ensure that there is no gap between the surfaces when the gap ring 11, the stator punching 12 and the baffle 13 abut, so as to ensure 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 limit column is greater than or equal to 0.06 mm and less than or equal to 0.4 mm, so as to prevent the cover body 232 and the gap ring 11 from being unevenly stressed due to misalignment when the hydraulic press applies pressure to the pressure cover 23. Furthermore, the shortest vertical distance h between the bottom surface of the cover surface 231 and the stopper 22 is greater than a preset spacing threshold to prevent the bottom surface of the cover surface 231 from contacting the stopper 22 when the top surface of the pressure cover 23 is subjected to force, thereby causing the stopper 22 to be subjected to force and damaging the target assembly and the tooling assembly. The spacing threshold can be adjusted according to actual needs.

[0021] The limiting member 22 is provided with a chamfer 221 around its top to guide the gap ring 11, the stator punching 12, the baffle 13 and the pressure cover 23 to be sleeved onto the limiting member 22, thereby improving the convenience of assembling the target assembly and the tooling assembly.

[0022] A first connecting portion 141 is provided around the top 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 141 and the second connecting portion 111 can be connected by a third fastener 15. The third fastener 15 can be configured as a bolt, including a nut, a washer, and an integrally formed screw and nut. Specifically, a first through-hole 1411 is provided in the first connecting portion 141, and a second through-hole 1111 is provided in the second connecting portion 1111. The screw portion of the third fastener 15 can pass through the second through-hole 1111 and the first through-hole 1411 and be threadedly connected to the nut to securely connect the first connecting portion 141 to the second connecting portion 111. More specifically, a washer is provided between the nut and the first connecting portion 141 to increase the contact area between the nut and the first connecting portion 141, thereby improving the fixing strength of the third fastener 15 to the first connecting portion 141 and the second connecting portion 111. Furthermore, the inner diameter of the first through-hole 1411 is larger than that of the second through-hole 1111 to prevent the screw of the third fastener 15 from contacting the target retaining fixture 14, which would make it difficult to remove the target retaining fixture 14. Once the target assembly is sleeved onto the rotor core shaft, the nut of the third fastener 15 can be removed and the target retaining fixture 14 can be removed and reused, saving costs.

[0023] A step surface 142 is provided around the bottom of the inner wall of the target limiting fixture 14 for supporting the baffle 13. A corner clearance notch 143 is provided around the top surface of the step surface 142 for avoiding the step surface 142.

[0024] In summary, the present application provides a tooling assembly for a target assembly. By providing a limiter 22 to limit the movement of the gap ring 11, stator punching 12, and baffle 13 in the radial direction of the limiter 22, the gap ring 11, stator punching 12, and baffle 13 can be prevented from interlacing and misaligning. After heating, the target material limiter tooling 14 expands and squeezes, making the target material limiter tooling 14 unable to be removed and reused. A pressure cap 23 is also provided to cooperate with a hydraulic press to perform horizontal calibration of the gap ring 11, stator punching 12, and baffle 13. This ensures that there is no gap between the surfaces of the gap ring 11, stator punching 12, and baffle 13, thereby improving the mechanical strength of the target assembly and saving human resources during the target assembly tightening process.

[0025] The above is a description of the embodiments of the present invention. Through the above description of the disclosed embodiments, professional and technical personnel in the field can implement or use the present invention. Various modifications to these embodiments will be obvious to professional and technical personnel in the field. The general principles defined in this article can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tooling assembly for a target assembly, the target assembly comprising a gap ring (11), a stator punching sheet (12) and a baffle (13) arranged in sequence from top to bottom, and further comprising a target limiting tooling (14) sleeved on the gap ring (11), the stator punching sheet (12) and the baffle (13); characterized in that: The tooling assembly comprises a base (21) and a limiting member (22), wherein the limiting member (22) is mounted on the base (21), the gap ring (11), the stator punching sheet (12) and the baffle (13) are sequentially mounted on the limiting member (22) from top to bottom, and the target material limiting tooling (14) is mounted on the base (21).

2. The tooling assembly of the target assembly according to claim 1, wherein: The inner diameters of the gap ring (11), the stator punching sheet (12), and the baffle (13) are substantially equal, and the difference between the inner diameters and the outer diameters of the limiting member (22) is greater than or equal to 0.06 mm and less than or equal to 0.4 mm.

3. The tooling assembly of the target assembly according to claim 1, wherein: The base (21) and the limiting member (22) are loosely matched; a first mounting groove (211) and a first fastener (212) are provided in the middle of the base (21); a front end of the first fastener (212) can pass through the first mounting groove (211) and be threadedly connected to the limiting member (22); and a rear end of the first fastener (212) is clamped in the first mounting groove (211).

4. The tooling assembly of the target assembly according to claim 1, wherein: The base (21) is clearance-matched with the target material limiting fixture (14); a second mounting groove (213) and a second fastener (214) are provided on both the left and right sides of the base (21); the front end of the second fastener (214) can pass through the second mounting groove (213) and be threadedly connected to the target material limiting fixture (14); and the rear end of the second fastener (214) is clamped in the second mounting groove (213).

5. The tooling assembly of the target assembly according to claim 1, wherein: The tooling assembly comprises a pressure cover (23), the pressure cover (23) comprising a cover surface (231) arranged in a horizontal direction and a cover body (232) arranged around the bottom surface of the cover surface (231); the cover body (232) is at least partially sleeved on the limiting member (22), and the bottom surface abuts against the gap ring (11).

6. The tooling assembly of the target assembly according to claim 5, characterized in that: The shortest distance between the bottom surface of the cover surface (231) and the limiting component (22) along the vertical direction is greater than a preset spacing threshold.

7. The tooling assembly of the target assembly according to claim 1, wherein: The limiting member (22) is provided with a chamfer (221) around its top.

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