Rotor assembly bearing pressing tool

Abstract

The utility model relates to the technical field of rotor assembly, in particular to a bearing pressing tool for a rotor assembly. The tool assembly is located below a pressing head of the pressing machine assembly. The tool assembly comprises an upper pressing bearing tool, a lower pressing bearing tool and a perpendicularity tool, a first bearing is installed in the upper pressing bearing tool, a second bearing is installed in the lower pressing bearing tool, the lower portion of a rotating shaft in the rotor assembly is inserted into the first bearing, and the rotor assembly is sleeved with the perpendicularity tool. The upper part of the rotating shaft in the rotor assembly is inserted into the second bearing. The structure is simple, the number of parts is small, operation is convenient, a perpendicularity tool is added in the assembling process to prevent the rotor assembly from inclining, the yield is improved, meanwhile, bearings can be assembled at the two ends at the same time or assembled at the single end according to needs, the assembling flexibility is high, and the assembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotor assembly, in particular to a rotor assembly bearing pressing tool. Background Art

[0002] The motor consists of a rotor and a stator. The rotor rotates relative to the stator. During the rotation, friction is generated between the rotor and the stator, which reduces the service life of the rotor and the stator. Therefore, it is usually necessary to install bearings on the rotor to reduce the friction between the rotor and the stator to increase the service life.

[0003] Usually, bearings need to be installed on opposite sides of the rotor. When the existing bearings are assembled, the rotor will tilt, resulting in the failure of the bearings. In addition, there are many tooling parts, a large floor space is occupied, and the operation is cumbersome. Summary of the invention

[0004] The technical problem to be solved by the utility model is: in order to solve the problems existing in the prior art in the above-mentioned background technology, a rotor assembly bearing pressing tool is provided which can prevent the rotor assembly from tilting and improve the yield.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a rotor assembly bearing pressure fixture, including a fixture assembly, the fixture assembly includes an upper bearing pressure fixture, a lower bearing pressure fixture and a verticality fixture, a first bearing is installed in the upper bearing pressure fixture, a second bearing is installed in the lower bearing pressure fixture, the first bearing is inserted into the lower part of the rotating shaft of the rotor assembly, a verticality fixture is sleeved on the rotor assembly, and the second bearing is inserted into the upper part of the rotating shaft of the rotor assembly.

[0006] Furthermore, a first through hole and a first countersunk groove are opened at the center position of the verticality tooling, the upper end of the upper pressure bearing tooling is inserted into the first countersunk groove, and the bottom surface of the first countersunk groove abuts against the top surface of the upper pressure bearing tooling.

[0007] Furthermore, a second through hole and a second countersunk groove are provided at the center of the upper pressure bearing fixture, and a first convex ring extending outward is provided at the edge of the second through hole, and the top surface of the first convex ring abuts against the inner ring of the first bearing.

[0008] Furthermore, a third through hole and a third countersunk groove are provided at the center of the downward pressure bearing fixture, and a second convex ring extending outward is provided at the edge of the third through hole, and the top surface of the second convex ring abuts against the inner ring of the second bearing.

[0009] Furthermore, the upper pressure bearing tooling, the lower pressure bearing tooling and the verticality tooling are coaxially arranged.

[0010] Further, the top surface of the downward pressure bearing fixture is pressed against the bottom surface of the verticality fixture.

[0011] Furthermore, the diameter D1 of the first through hole is equal to the diameter D2 of the steel sleeve of the rotor assembly; the diameter D3 of the first counterbore groove is equal to the outer diameter D4 of the upper pressure bearing fixture.

[0012] Furthermore, it also includes a press assembly, and the tooling assembly is located below the pressing head of the press assembly.

[0013] The beneficial effects of the utility model: the utility model has a simple structure, fewer parts and components, and is easy to operate. During the assembly process, a vertical tool is added to prevent the rotor assembly from tilting, thereby improving the yield rate. At the same time, bearings can be assembled at both ends at the same time or at a single end as needed, which has high assembly flexibility and improves assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the tooling assembly of the utility model;

[0017] Figure 3 It is an exploded view of the tooling assembly of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the verticality tooling of the utility model;

[0019] Figure 5 It is a cross-sectional view of the verticality tooling of the utility model;

[0020] Figure 6 It is a three-dimensional diagram of the upper pressure bearing tooling of the utility model;

[0021] Figure 7 It is a cross-sectional view of the upper pressure bearing tooling of the utility model;

[0022] Figure 8 It is a three-dimensional diagram of the down-press bearing tooling of the utility model;

[0023] Fig. 9 It is a cross-sectional view of the down-press bearing fixture of the utility model;

[0024] In the figure: 1. upper pressure bearing tooling, 2. lower pressure bearing tooling, 3. verticality tooling, 4. first bearing, 5. second bearing, 6. first through hole, 7. first countersunk groove, 8. second through hole, 9. second countersunk groove, 10. first convex ring, 11. third through hole, 12. third countersunk groove, 13. second convex ring. DETAILED DESCRIPTION

[0025] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0026] like Figures 1 to 9 A rotor assembly bearing pressing tooling shown includes a press assembly and a tooling assembly, wherein the tooling assembly is located below the pressing head of the press assembly, and the press assembly is a manual or automatic press assembly;

[0027] The tooling assembly comprises an upper pressure bearing tooling 1, a lower pressure bearing tooling 2 and a verticality tooling 3. A first bearing 4 is installed in the upper pressure bearing tooling 1, a second bearing 5 is installed in the lower pressure bearing tooling 2, the first bearing 4 is inserted into the lower part of the rotating shaft of the rotor assembly, and the verticality tooling 3 is sleeved on the rotor assembly to prevent the rotor assembly from tilting during the assembly process, reduce the scrap rate of the bearings, and increase the qualified rate of finished products. The second bearing 5 is inserted into the upper part of the rotating shaft of the rotor assembly;

[0028] In addition, the upper pressure bearing fixture 1, the lower pressure bearing fixture 2 and the verticality fixture 3 are coaxially arranged.

[0029] like Figures 4-5 As shown, a first through hole 6 and a first countersunk groove 7 are opened at the center position of the verticality tooling 3, the upper end of the upper pressure bearing tooling 1 is inserted into the first countersunk groove 7, and the bottom surface of the first countersunk groove 7 is against the top surface of the upper pressure bearing tooling 1.

[0030] like Figures 6-7 As shown, a second through hole 8 and a second countersunk groove 9 are provided at the center of the upper pressure bearing fixture 1, and a first convex ring 10 extending outward is provided at the edge of the second through hole 8, and the top surface of the first convex ring 10 abuts against the inner ring of the first bearing 4.

[0031] like Figures 8-9 As shown, a third through hole 11 and a third countersunk groove 12 are provided at the center of the downward bearing fixture 2, and a second convex ring 13 extending outward is provided at the edge of the third through hole 11, and the top surface of the second convex ring 13 abuts against the inner ring of the second bearing 5.

[0032] At the same time, the top surface of the downward-pressed bearing fixture 2 is pressed against the bottom surface of the verticality fixture 3 .

[0033] The diameter D1 of the first through hole 6 is equal to the diameter D2 of the steel sleeve of the rotor assembly;

[0034] The diameter D3 of the first counterbore groove 7 is equal to the outer diameter D4 of the upper pressure bearing fixture 1 .

[0035] Among them, the structures of the upper pressure bearing fixture 1 and the lower pressure bearing fixture 2 are basically the same, and the difference lies in the size (for example: the diameter of the second through hole 8 in the upper pressure bearing fixture 1 is larger than the diameter of the third through hole 11 in the lower pressure bearing fixture 2).

[0036] Working process:

[0037] Step 1: Place the upper pressure bearing fixture 1 under the lower head of the press assembly, and place the first bearing 4 in the first counterbore groove 7 of the upper pressure bearing fixture 1;

[0038] Step 2: insert the lower end of the rotor in the rotor assembly into the first bearing 4, and then insert the verticality tool 3 onto the steel sleeve in the rotor assembly;

[0039] Step 3: Place the second bearing 5 in the second counterbore groove 12 of the downward bearing fixture 2, and connect the second bearing 5 to the downward bearing fixture 2 and insert it into the upper end of the rotor in the rotor assembly;

[0040] Step 4: Start the press assembly and press down to complete the simultaneous press-fitting of the two bearings.

[0041] or,

[0042] Step 1: Place the upper pressure bearing fixture 1 under the lower head of the press assembly, and place the first bearing 4 in the first counterbore groove 7 of the upper pressure bearing fixture 1;

[0043] Step 2: insert the lower end of the rotor in the rotor assembly into the first bearing 4, and then insert the verticality tool 3 onto the steel sleeve in the rotor assembly;

[0044] Step 3 ‘ : Press the bearing tooling 2 into the upper end of the rotor in the rotor assembly, start the press assembly, press down, and complete the press installation of the first bearing 4;

[0045] Step 4 ‘ : Finally, remove the downward bearing fixture 2, place the second bearing 5 in the second countersunk groove 12 of the downward bearing fixture 2, and connect the second bearing 5 to the downward bearing fixture 2 and insert it into the upper end of the rotor in the rotor assembly, start the press assembly, press down, and complete the press installation of the second bearing 5.

[0046] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A rotor assembly bearing press tooling, characterized in that: The invention comprises a tooling assembly, wherein the tooling assembly comprises an upper pressure bearing tooling (1), a lower pressure bearing tooling (2) and a verticality tooling (3); a first bearing (4) is installed in the upper pressure bearing tooling (1), a second bearing (5) is installed in the lower pressure bearing tooling (2); the first bearing (4) is inserted into the lower part of the rotating shaft of the rotor assembly; the verticality tooling (3) is sleeved on the rotor assembly; and the second bearing (5) is inserted into the upper part of the rotating shaft of the rotor assembly.

2. A rotor assembly bearing press tooling according to claim 1, characterized in that: A first through hole (6) and a first countersunk groove (7) are provided at the center of the verticality tooling (3); the upper end of the upper pressure bearing tooling (1) is inserted into the first countersunk groove (7), and the bottom surface of the first countersunk groove (7) abuts against the top surface of the upper pressure bearing tooling (1).

3. A rotor assembly bearing press tooling according to claim 1, characterized in that: A second through hole (8) and a second countersunk groove (9) are provided at the center of the upper pressure bearing fixture (1); a first convex ring (10) extending outward is provided at the edge of the second through hole (8); the top surface of the first convex ring (10) abuts against the inner ring of the first bearing (4).

4. A rotor assembly bearing press tooling according to claim 1, characterized in that: A third through hole (11) and a third counterbore groove (12) are provided at the center of the downward pressure bearing fixture (2); a second convex ring (13) extending outward is provided at the edge of the third through hole (11); the top surface of the second convex ring (13) abuts against the inner ring of the second bearing (5).

5. The rotor assembly bearing press tooling according to claim 1, characterized in that: The upper pressure bearing tooling (1), the lower pressure bearing tooling (2) and the verticality tooling (3) are coaxially arranged.

6. A rotor assembly bearing press tooling according to claim 1, characterized in that: The top surface of the downward bearing fixture (2) abuts against the bottom surface of the verticality fixture (3).

7. A rotor assembly bearing press tooling according to claim 2, characterized in that: The diameter D1 of the first through hole (6) is equal to the diameter D2 of the steel sleeve of the rotor assembly; The diameter D3 of the first countersunk groove (7) is equal to the outer diameter D4 of the upper pressure bearing fixture (1).

8. The rotor assembly bearing press tooling according to claim 1, characterized in that: A press assembly is also included, wherein the tooling assembly is located below a pressing head of the press assembly.

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