Multi-bearing press-fitting device and method

Abstract

The present invention provides a multi-bearing press-fitting device and method, relating to the field of press-fitting technology. The device comprises a tooling base plate, an intermediate shaft guide rod fixed to the tooling base plate, the intermediate shaft guide rod respectively passing through an intermediate shaft spring a, an intermediate shaft spring b, an intermediate shaft bearing a guide sleeve, an intermediate shaft buffer sleeve, and an intermediate shaft fixing sleeve. The intermediate shaft fixing sleeve is fixed to the tooling base plate, the intermediate shaft fixing sleeve presses the intermediate shaft buffer sleeve, the intermediate shaft buffer sleeve presses the intermediate shaft spring b and the intermediate shaft bearing a guide sleeve respectively, and the intermediate shaft bearing a guide sleeve presses the intermediate shaft spring a. The present invention can prevent bearings from being crushed, ensure the accuracy of the relative position of the pressing head and the pressed part, and achieve simultaneous press-fitting of bearings on both ends of multiple shafts, greatly improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the field of press-fitting technology, and in particular to a multi-bearing press-fitting device and method. Background Art

[0002] The existing technology forms a vertically extending receiving hole inside the pressing head for the shaft to extend into. The press pushes the pressing head to press the bearing into the target position on the outer surface of the shaft. This solution can only press one bearing at a time, which is relatively inefficient. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides a multi-bearing press-fitting device and method, which realizes the simultaneous press-fitting of bearings on both ends of multiple shafts, greatly improving production efficiency.

[0004] In order to achieve the above technical objectives, the present invention provides a multi-bearing press-fitting device, comprising a tooling base plate (A11), an intermediate shaft guide rod (A01) fixed on the tooling base plate (A11), the intermediate shaft guide rod (A01) respectively passing through an intermediate shaft spring a (A13), an intermediate shaft spring b (A14), an intermediate shaft bearing a guide sleeve (A02), an intermediate shaft buffer sleeve (A03) and an intermediate shaft fixing sleeve (A09), the intermediate shaft fixing sleeve (A09) being fixed on the tooling base plate (A11), the intermediate shaft fixing sleeve (A09) pressing the intermediate shaft buffer sleeve (A03), the intermediate shaft buffer sleeve (A03) respectively pressing the intermediate shaft spring b (A14) and the intermediate shaft bearing a guide sleeve (A02), and the intermediate shaft bearing a guide sleeve (A02) pressing the intermediate shaft spring a (A13);

[0005] The output shaft support (A05) is fixed to the tooling base plate (A11), the output shaft guide rod (A04) passes through the output shaft support (A05), the output shaft spring (A15) is placed in the inner cavity of the output shaft guide rod (A04), the output shaft support (A05) presses the output shaft guide rod (A04), and the output shaft guide rod (A04) presses the output shaft spring (A15);

[0006] The input shaft guide rod (A06) is fixed on the tooling base plate (A11), and the input shaft guide rod (A06) passes through the input shaft fixing sleeve (A10), the input shaft buffer sleeve (A08), the input shaft spring b (A17), the input shaft spring a (A16) and the input shaft bearing a guide sleeve (A07) respectively. The input shaft fixing sleeve (A10) is fixed on the tooling base plate (A11), the input shaft fixing sleeve (A10) presses the input shaft buffer sleeve (A08), the input shaft buffer sleeve (A08) presses the input shaft spring b (A17) and the input shaft bearing a guide sleeve (A07) respectively, and the input shaft bearing a guide sleeve (A07) presses the input shaft spring a (A16) through a step.

[0007] Preferably, the tooling base plate (A11) is fixed on the press workbench (C02), the intermediate shaft bearing a (B01) is inserted into the intermediate shaft bearing a guide sleeve (A02) to form a radial positioning, and the intermediate shaft buffer sleeve (A03) is used to support the output shaft bearing a (B02) in the axial direction to be inserted into the output shaft guide rod (A04) to form a radial positioning, and the output shaft support (A05) is used to support the input shaft bearing a (B03) in the axial direction to be inserted into the input shaft bearing a guide sleeve (A07) to form a radial positioning, and the input shaft buffer sleeve (A08) is used to support the intermediate shaft (B04) in the axial direction to be inserted into the output shaft guide rod (A04) to form a radial positioning. Insert the intermediate shaft guide rod (A01) and form radial positioning, and be supported axially by the intermediate shaft bearing a guide sleeve (A02) to ensure that the intermediate shaft (B04) is perpendicular to the tooling base plate (A11); insert the output shaft (B05) into the output shaft guide rod (A04) and form radial and axial positioning, and ensure that the output shaft (B05) is perpendicular to the tooling base plate (A11); insert the input shaft (B06) into the input shaft guide rod (A06) and form radial positioning, and be supported axially by the input shaft bearing a guide sleeve (A07) to ensure that the input shaft (B06) is perpendicular to the tooling base plate (A11).

[0008] Preferably, the boss of the intermediate shaft bearing b guide block (B07) is inserted into the inner hole of the intermediate shaft (B04), and the intermediate shaft bearing b (B10) is inserted into the intermediate shaft bearing b guide block (B07);

[0009] Insert the boss of the output shaft bearing b guide block (B08) into the inner hole of the output shaft (B05), and insert the output shaft bearing b (B11) into the output shaft bearing b guide block (B08);

[0010] Insert the boss of the input shaft bearing b guide block (B09) into the inner hole of the input shaft (B06), and insert the input shaft bearing b (B12) into the input shaft bearing b guide block (B09).

[0011] Preferably, the upper tooling plate (A12) is fixed to the movable pressing plate (C03) of the press by bolts, and a plurality of pressing heads are provided on the upper tooling plate (A12), and a plurality of guide columns are provided in the middle of the pressing heads.

[0012] Preferably, the intermediate shaft spring b (A14) and the input shaft spring b (A17) form a flexible support.

[0013] Preferably, the number of the pressure heads and the number of the guide posts are the same.

[0014] Preferably, three guide columns are provided.

[0015] The present invention also proposes a multi-bearing press-fitting method, which is applied to the multi-bearing press-fitting device, and includes the following steps:

[0016] S1. Press the press start button (C01), and the press movable plate (C03) drives the upper tooling plate (A12) to press downward;

[0017] S2. During the pressing process, the multiple guide columns on the upper tooling plate (A12) are aligned with the inner holes of the intermediate shaft bearing b guide block (B07), the output shaft bearing b guide block (B08), and the input shaft bearing b guide block (B09);

[0018] S3. Multiple pressing heads on the upper tooling plate (A12) are pressed onto the inner rings of the intermediate shaft bearing b (B10), the output shaft bearing b (B11), and the input shaft bearing b (B12), and are pressed to the target positions corresponding to the intermediate shaft (B04), the output shaft (B05), and the input shaft (B06), respectively. In the process of the intermediate shaft bearing b (B10), the output shaft bearing b (B11), and the input shaft bearing b (B12) being pressed to the target positions, the intermediate shaft (B04), the output shaft (B05), and the input shaft (B06) are driven to force the intermediate shaft bearing a guide sleeve (A02), the output shaft guide rod (A04), and the input shaft bearing a guide sleeve (A07) to move downward, thereby causing the intermediate shaft spring a (A13), the output shaft spring (A15), and the input shaft spring a (A16) to contract.

[0019] Due to the downward pressure of the intermediate shaft (B04), the output shaft (B05) and the input shaft (B06), the intermediate shaft bearing a (B01), the output shaft bearing a (B02) and the input shaft bearing a (B03) are respectively supported by the intermediate shaft buffer sleeve (A03), the output shaft support (A05) and the input shaft buffer sleeve (A08), causing the intermediate shaft bearing a (B01), the output shaft bearing a (B02) and the input shaft bearing a (B03) to be pressed to the target positions corresponding to the intermediate shaft (B04), the output shaft (B05) and the input shaft (B06), respectively.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention provides a multi-bearing press-fitting device and method, which can enable more bearings to be press-fitted at the same time, ensure that the bearings will not be damaged by the pressure, ensure the accuracy of the relative position of the pressure head and the pressed parts, and realize the simultaneous press-fitting of multiple shaft ends and bearings, thereby greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the multi-bearing press-fitting device of the present invention;

[0024] Figure 2 This is a front view of the multi-bearing press-fitting device described in the present invention.

[0025] In the figure: C01-press start button; C02-press workbench; C03-press movable pressure plate; A01-intermediate shaft guide rod; A02-intermediate shaft bearing a guide sleeve; A03-intermediate shaft buffer sleeve; A04-output shaft guide rod; A05-output shaft support; A06-input shaft guide rod; A07-input shaft bearing a guide sleeve; A08-input shaft buffer sleeve; A09-intermediate shaft fixing sleeve; A10-input shaft fixing sleeve; A11-tooling base plate; A12-upper tooling plate; A13-intermediate shaft spring a; A14-intermediate shaft spring b; A15-output shaft spring; A16-input shaft spring a; A17-input shaft spring b; B01-intermediate shaft bearing a; B02-output shaft bearing a; B03-input shaft bearing a; B04-intermediate shaft; B05-output shaft; B06-input shaft; B07-intermediate shaft bearing b guide block; B08-output shaft bearing b guide block; B09-input shaft bearing b guide block; B10-intermediate shaft bearing b; B11-output shaft bearing b; B12-input shaft bearing b. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0027] like Figure 1 、 Figure 2 As shown, the present invention provides a multi-bearing press-fitting device, comprising a tooling base plate (A11), an intermediate shaft guide rod (A01) fixed to the tooling base plate (A11) by bolts, the intermediate shaft guide rod (A01) respectively passing through an intermediate shaft spring a (A13), an intermediate shaft spring b (A14), an intermediate shaft bearing a guide sleeve (A02), an intermediate shaft buffer sleeve (A03) and an intermediate shaft fixing sleeve (A09), the intermediate shaft fixing sleeve (A09) being fixed to the tooling base plate (A11) by bolts, the intermediate shaft fixing sleeve (A09) pressing the intermediate shaft buffer sleeve (A03) via a step structure, so that the intermediate shaft buffer sleeve (A03) is maintained in a suitable axial position, the intermediate shaft buffer sleeve (A03) pressing the intermediate shaft spring b (A14) and the intermediate shaft bearing a guide sleeve (A02) respectively via a step, and the intermediate shaft bearing a guide sleeve (A02) pressing the intermediate shaft spring a (A13) via a step;

[0028] The output shaft guide rod (A04) passes through the output shaft support (A05), and the output shaft spring (A15) is placed in the inner cavity of the output shaft guide rod (A04). The output shaft support (A05) is fixed to the tooling base plate (A11) by bolts. The output shaft support (A05) presses the output shaft guide rod (A04) through the step to keep the output shaft guide rod (A04) in a suitable axial position. The output shaft guide rod (A04) presses the output shaft spring (A15) through the inner cavity step.

[0029] The input shaft guide rod (A06) is fixed to the tooling base plate (A11) by bolts. The input shaft guide rod (A06) passes through the input shaft fixing sleeve (A10), the input shaft buffer sleeve (A08), the input shaft spring b (A17), the input shaft spring a (A16) and the input shaft bearing a guide sleeve (A07) respectively. The input shaft fixing sleeve (A10) is fixed to the tooling base plate (A11) by bolts. The input shaft fixing sleeve (A10) presses the input shaft buffer sleeve (A08) through the step structure to keep the input shaft buffer sleeve (A08) in a suitable axial position. The input shaft buffer sleeve (A08) presses the input shaft spring b (A17) and the input shaft bearing a guide sleeve (A07) respectively through the step. The input shaft bearing a guide sleeve (A07) presses the input shaft spring a (A16) through the step.

[0030] Furthermore, the tooling base plate (A11) is fixed to the press workbench (C02) by bolts, the intermediate shaft bearing a (B01) is inserted into the intermediate shaft bearing a guide sleeve (A02) to form radial positioning, and is supported axially by the intermediate shaft buffer sleeve (A03). The output shaft bearing a (B02) is inserted into the output shaft guide rod (A04) to form radial positioning, and is supported axially by the output shaft support (A05). The input shaft bearing a (B03) is inserted into the input shaft bearing a guide sleeve (A07) to form radial positioning, and is supported axially by the input shaft buffer sleeve (A08). The intermediate shaft (B04) is inserted into the intermediate shaft guide rod (A01) to form radial positioning, and is supported axially by the intermediate shaft bearing a guide sleeve (A02), ensuring that the intermediate shaft (B04) is perpendicular to the tooling base plate (A11);

[0031] Insert the output shaft (B05) into the output shaft guide rod (A04) and form radial and axial positioning to ensure that the output shaft (B05) is perpendicular to the tooling base plate (A11);

[0032] Insert the input shaft (B06) into the input shaft guide rod (A06) to form radial positioning, and support it axially with the input shaft bearing a guide sleeve (A07) to ensure that the input shaft (B06) is perpendicular to the tooling base plate (A11).

[0033] Furthermore, the boss of the intermediate shaft bearing b guide block (B07) is inserted into the inner hole of the intermediate shaft (B04), and the intermediate shaft bearing b (B10) is inserted into the intermediate shaft bearing b guide block (B07). Since the inner hole of the intermediate shaft bearing b (B10) and the outer diameter of the intermediate shaft (B04) are interference fit, the intermediate shaft bearing b (B10) will not directly fall into the corresponding position on the intermediate shaft (B04) without applying external force.

[0034] Insert the boss of the output shaft bearing b guide block (B08) into the inner hole of the output shaft (B05), and insert the output shaft bearing b (B11) into the output shaft bearing b guide block (B08). Since the inner hole of the output shaft bearing b (B11) and the outer diameter of the output shaft (B05) are interference fit, the output shaft bearing b (B11) will not directly fall into the corresponding position on the output shaft (B05) without applying external force;

[0035] Insert the boss of the input shaft bearing b guide block (B09) into the inner hole of the input shaft (B06), and insert the input shaft bearing b (B12) into the input shaft bearing b guide block (B09). Since the inner hole of the input shaft bearing b (B12) and the outer diameter of the input shaft (B06) are interference fit, the input shaft bearing b (B12) will not directly fall into the corresponding position on the input shaft (B06) without applying external force.

[0036] Furthermore, the upper tooling plate (A12) is fixed to the movable pressing plate (C03) of the press by bolts, and multiple pressing heads are provided on the upper tooling plate (A12), and multiple guide columns are provided in the middle of the pressing heads. In this embodiment, three pressing heads are provided on the upper tooling plate (A12), and three guide columns are provided in the middle of the pressing heads.

[0037] Furthermore, the intermediate shaft spring b (A14) and the input shaft spring b (A17) form a flexible support, and the flexible support of the spring eliminates the situation where the bearing is not pressed to the corresponding target position due to manufacturing errors of the parts.

[0038] Furthermore, the number of the pressure heads and the number of the guide posts are the same.

[0039] A multi-bearing press-fitting method, applied to the multi-bearing press-fitting device, comprises the following steps:

[0040] S1. Press the press start button (C01), and the press movable plate (C03) drives the upper tooling plate (A12) to press downward;

[0041] S2. During the pressing process, the multiple guide columns on the upper tooling plate (A12) are aligned with the inner holes of the intermediate shaft bearing b guide block (B07), the output shaft bearing b guide block (B08), and the input shaft bearing b guide block (B09);

[0042] S3. Multiple pressing heads on the upper tooling plate (A12) are pressed onto the inner rings of the intermediate shaft bearing b (B10), the output shaft bearing b (B11), and the input shaft bearing b (B12), and are pressed to the target positions corresponding to the intermediate shaft (B04), the output shaft (B05), and the input shaft (B06), respectively. In the process of the intermediate shaft bearing b (B10), the output shaft bearing b (B11), and the input shaft bearing b (B12) being pressed to the target positions, the intermediate shaft (B04), the output shaft (B05), and the input shaft (B06) are driven to force the intermediate shaft bearing a guide sleeve (A02), the output shaft guide rod (A04), and the input shaft bearing a guide sleeve (A07) to move downward, thereby causing the intermediate shaft spring a (A13), the output shaft spring (A15), and the input shaft spring a (A16) to contract.

[0043] Due to the downward pressure of the intermediate shaft (B04), the output shaft (B05) and the input shaft (B06), the intermediate shaft bearing a (B01), the output shaft bearing a (B02) and the input shaft bearing a (B03) are respectively supported by the intermediate shaft buffer sleeve (A03), the output shaft support (A05) and the input shaft buffer sleeve (A08), causing the intermediate shaft bearing a (B01), the output shaft bearing a (B02) and the input shaft bearing a (B03) to be pressed to the target positions corresponding to the intermediate shaft (B04), the output shaft (B05) and the input shaft (B06), respectively.

[0044] In this embodiment, the operator presses the press start button (C01) with both hands, and the press movable plate (C03) drives the upper tooling plate (A12) to press downward. During the pressing process, the three guide columns on the upper tooling plate (A12) are aligned with the inner holes of the intermediate shaft bearing b guide block (B07), the output shaft bearing b guide block (B08) and the input shaft bearing b guide block (B09), and the three pressing heads on the upper tooling plate (A12) are pressed against the intermediate shaft bearing b (B10), the output shaft bearing b guide block (B08) and the input shaft bearing b guide block (B09). The intermediate shaft bearing b (B10), output shaft bearing b (B11) and input shaft bearing b (B12) are pressed onto the inner ring of the intermediate shaft bearing b (B11) and the input shaft bearing b (B12), and are pressed to the target positions corresponding to the intermediate shaft (B04), output shaft (B05) and input shaft (B06) respectively. In the process of the intermediate shaft bearing b (B10), output shaft bearing b (B11) and input shaft bearing b (B12) being pressed to the target positions, the intermediate shaft (B04), output shaft (B05) and input shaft (B06) are driven to force the intermediate shaft bearing a guide sleeve (A02), The output shaft guide rod (A04) and the input shaft bearing a guide sleeve (A07) move downward, driving the intermediate shaft spring a (A13), the output shaft spring (A15) and the input shaft spring a (A16) to contract. The designed working load of the intermediate shaft spring a (A13), the output shaft spring (A15) and the input shaft spring a (A16) is greater than the weight of the parts they support, and less than the interference fit force of their bearings. Due to the intermediate shaft (B04), the output shaft (B05) and the input shaft ( The intermediate shaft bearing a (B01), the output shaft bearing a (B02) and the input shaft bearing a (B03) are respectively supported by the intermediate shaft buffer sleeve (A03), the output shaft support (A05) and the input shaft buffer sleeve (A08), so that the intermediate shaft bearing a (B01), the output shaft bearing a (B02) and the input shaft bearing a (B03) are respectively pressed to the target positions corresponding to the intermediate shaft (B04), the output shaft (B05) and the input shaft (B06).

[0045] In order to avoid the situation where the intermediate shaft bearing a (B01), intermediate shaft bearing b (B10), output shaft bearing a (B02), output shaft bearing b (B11), input shaft bearing a (B03) and input shaft bearing b (B12) are not pressed to the corresponding target positions due to manufacturing errors of the parts, the output shaft support (A05) adopts a rigid support in the axial direction of the output shaft bearing a (B02). The positions of the axial supports of the intermediate shaft bearing a (B01) and the input shaft bearing a (B03) should be higher than the position of the output shaft bearing a (B02), and flexible supports are formed by the intermediate shaft spring b (A14) and the input shaft spring b (A17) respectively. The flexible support of the springs can eliminate the situation where the bearings are not pressed to the corresponding target positions due to manufacturing errors of the parts.

[0046] The designed working load of the intermediate shaft spring b (A14) is greater than the actual press-fitting force of the intermediate shaft bearing a (B01) and the interference of the intermediate shaft bearing b (B10) and the intermediate shaft (B04), and a certain load margin is reserved. Figure 2 The spring shown is a single one. Depending on the workload requirements, it can be designed as multiple springs evenly distributed around the intermediate shaft guide rod (A01).

[0047] The designed working load of input shaft spring b (A17) is greater than the actual press-fitting force of input shaft bearing a (B03) and input shaft bearing b (B12) with the input shaft (B06), and a certain load margin is reserved. Figure 2 The spring shown is a single one. Depending on the workload requirements, multiple springs can be designed to be evenly distributed around the input shaft guide rod (A06).

[0048] The present invention provides a multi-bearing press-fitting device and method, which can enable more bearings to be press-fitted at the same time, ensure that the bearings will not be damaged by the pressure, ensure the accuracy of the relative position of the pressure head and the pressed parts, and realize the simultaneous press-fitting of multiple shaft ends and bearings, thereby greatly improving production efficiency.

[0049] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and are not to be understood as indicating or implying relative importance.

[0050] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-described embodiments within the technical scope disclosed by the present invention, or replace some of the technical features therein with equivalents. However, such modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. They should all be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A multi-bearing press-fitting device, characterized in that: It comprises a tooling base plate (A11), an intermediate shaft guide rod (A01) fixed on the tooling base plate (A11), the intermediate shaft guide rod (A01) respectively passing through an intermediate shaft spring a (A13), an intermediate shaft spring b (A14), an intermediate shaft bearing a guide sleeve (A02), an intermediate shaft buffer sleeve (A03) and an intermediate shaft fixing sleeve (A09), the intermediate shaft fixing sleeve (A09) being fixed on the tooling base plate (A11), the intermediate shaft fixing sleeve (A09) pressing the intermediate shaft buffer sleeve (A03), the intermediate shaft buffer sleeve (A03) respectively pressing the intermediate shaft spring b (A14) and the intermediate shaft bearing a guide sleeve (A02), and the intermediate shaft bearing a guide sleeve (A02) pressing the intermediate shaft spring a (A13); The output shaft support (A05) is fixed to the tooling base plate (A11), the output shaft guide rod (A04) passes through the output shaft support (A05), the output shaft spring (A15) is placed in the inner cavity of the output shaft guide rod (A04), the output shaft support (A05) presses the output shaft guide rod (A04), and the output shaft guide rod (A04) presses the output shaft spring (A15); The input shaft guide rod (A06) is fixed on the tooling base plate (A11), and the input shaft guide rod (A06) passes through the input shaft fixing sleeve (A10), the input shaft buffer sleeve (A08), the input shaft spring b (A17), the input shaft spring a (A16), and the input shaft bearing a guide sleeve (A07) respectively. The input shaft fixing sleeve (A10) is fixed on the tooling base plate (A11), the input shaft fixing sleeve (A10) presses the input shaft buffer sleeve (A08), the input shaft buffer sleeve (A08) presses the input shaft spring b (A17) and the input shaft bearing a guide sleeve (A07), and the input shaft bearing a guide sleeve (A07) presses the input shaft spring a (A16) through the step; Fix the tooling base plate (A11) on the press workbench (C02), insert the intermediate shaft bearing a (B01) into the intermediate shaft bearing a guide sleeve (A02) and form a radial positioning, and the intermediate shaft buffer sleeve (A03) supports it axially. Insert the output shaft bearing a (B02) into the output shaft guide rod (A04) and form a radial positioning, and the output shaft support (A05) supports it axially. Insert the input shaft bearing a (B03) into the input shaft bearing a guide sleeve (A07) and form a radial positioning, and the input shaft buffer sleeve (A08) supports it axially. Insert the intermediate shaft (B04) into the intermediate shaft. Insert the intermediate shaft guide rod (A01) and form radial positioning, and the intermediate shaft bearing a guide sleeve (A02) is supported in the axial direction to ensure that the intermediate shaft (B04) is perpendicular to the tooling base plate (A11); insert the output shaft (B05) into the output shaft guide rod (A04) and form radial and axial positioning, and ensure that the output shaft (B05) is perpendicular to the tooling base plate (A11); insert the input shaft (B06) into the input shaft guide rod (A06) and form radial positioning, and the input shaft bearing a guide sleeve (A07) is supported in the axial direction to ensure that the input shaft (B06) is perpendicular to the tooling base plate (A11); Insert the boss of the intermediate shaft bearing b guide block (B07) into the inner hole of the intermediate shaft (B04), and insert the intermediate shaft bearing b (B10) into the intermediate shaft bearing b guide block (B07); Insert the boss of the output shaft bearing b guide block (B08) into the inner hole of the output shaft (B05), and insert the output shaft bearing b (B11) into the output shaft bearing b guide block (B08); Insert the boss of the input shaft bearing b guide block (B09) into the inner hole of the input shaft (B06), and insert the input shaft bearing b (B12) into the input shaft bearing b guide block (B09).

2. The multi-bearing press-fitting device according to claim 1, characterized in that: The upper tooling plate (A12) is fixed to the movable pressing plate (C03) of the press by means of bolts. A plurality of pressing heads are arranged on the upper tooling plate (A12), and a plurality of guide columns are arranged in the middle of the pressing heads.

3. The multi-bearing press-fitting device according to claim 1, characterized in that: The intermediate shaft spring b (A14) and the input shaft spring b (A17) form a flexible support.

4. The multi-bearing press-fitting device according to claim 2, characterized in that: The number of the pressure heads and the number of the guide posts are the same.

5. The multi-bearing press-fitting device according to claim 4, characterized in that: The number of guide columns is three.

6. A multi-bearing press-fitting method, applied to the multi-bearing press-fitting device according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Press the press start button (C01), and the press movable plate (C03) drives the upper tooling plate (A12) to press downward; S2. During the pressing process, the plurality of guide columns on the upper tooling plate (A12) are aligned with the inner holes of the intermediate shaft bearing b guide block (B07), the output shaft bearing b guide block (B08), and the input shaft bearing b guide block (B09); S3. Multiple pressing heads on the upper tooling plate (A12) are pressed onto the inner rings of the intermediate shaft bearing b (B10), the output shaft bearing b (B11), and the input shaft bearing b (B12), and are pressed to the target positions corresponding to the intermediate shaft (B04), the output shaft (B05), and the input shaft (B06), respectively. In the process of the intermediate shaft bearing b (B10), the output shaft bearing b (B11), and the input shaft bearing b (B12) being pressed to the target positions, the intermediate shaft (B04), the output shaft (B05), and the input shaft (B06) are driven to force the intermediate shaft bearing a guide sleeve (A02), the output shaft guide rod (A04), and the input shaft bearing a guide sleeve (A07) to move downward, thereby causing the intermediate shaft spring a (A13), the output shaft spring (A15), and the input shaft spring a (A16) to contract; Due to the downward pressure of the intermediate shaft (B04), the output shaft (B05) and the input shaft (B06), the intermediate shaft bearing a (B01), the output shaft bearing a (B02) and the input shaft bearing a (B03) are respectively supported by the intermediate shaft buffer sleeve (A03), the output shaft support (A05) and the input shaft buffer sleeve (A08), causing the intermediate shaft bearing a (B01), the output shaft bearing a (B02) and the input shaft bearing a (B03) to be pressed to the target positions corresponding to the intermediate shaft (B04), the output shaft (B05) and the input shaft (B06), respectively.

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