Shaft assembly press-fitting device

Abstract

The utility model provides a shaft assembly press-fitting device. A shaft assembly comprises a shaft part, a lower bearing and an upper bearing, wherein the lower bearing and the upper bearing are installed at the two ends of the shaft part. The shaft assembly press-fitting device comprises a rack; the lower tool assembly is arranged on the rack, and the lower tool assembly is used for keeping a lower bearing; the upper tool assembly is used for keeping an upper bearing, and when the upper tool assembly moves downwards for the first time, the upper tool assembly is used for pressing the lower end of the shaft part into the lower bearing; and when the upper tool assembly moves downwards for the second time, the upper tool assembly is used for pressing the upper bearing into the upper end of the shaft part.

Description

Technical Field

[0001] The present invention relates to a shaft assembly press-fitting device, belonging to the technical field of automation equipment. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] In the automotive field, since the gearbox includes multiple gear shafts, and the gear shafts need to be installed with multiple bearings; the fit between the bearings and the gear shafts is generally an interference fit, therefore, the automated assembly of the gearbox has always been a problem.

[0004] Moreover, as automobile sales continue to increase, the manual installation of the gear shaft can no longer meet production requirements. Therefore, there is an urgent need to develop a shaft assembly press-fitting device to solve the above technical problems. Utility Model Content

[0005] In order to solve one of the above technical problems, the present disclosure provides a shaft assembly press-fitting device.

[0006] According to one aspect of the present disclosure, a shaft assembly press-fitting device is provided, wherein the shaft assembly includes a shaft component and a lower bearing and an upper bearing mounted on both ends of the shaft component; the shaft assembly press-fitting device includes:

[0007] frame;

[0008] A lower tooling assembly, the lower tooling assembly being arranged on the frame and being used for holding a lower bearing;

[0009] An upper tooling assembly is used to hold an upper bearing, wherein when the upper tooling assembly moves downward for the first time, it is used to press the lower end of the shaft component into the lower bearing; when the upper tooling assembly moves downward for the second time, it is used to press the upper bearing into the upper end of the shaft component.

[0010] According to the shaft assembly press-fitting device of at least one embodiment of the present disclosure, the lower tooling assembly includes at least one lower tooling module; when the lower tooling module is provided in plurality, the plurality of lower tooling modules are arranged along a first direction.

[0011] According to the shaft assembly press-fitting device of at least one embodiment of the present disclosure, the lower tooling module includes a lower sliding plate, and the lower sliding plate is configured to slide along a first direction.

[0012] According to at least one embodiment of the shaft assembly press-fitting device of the present disclosure, the lower tooling module includes:

[0013] a lower support frame, the lower support frame being arranged on the lower sliding plate;

[0014] a lower bearing support member, the lower bearing support member being arranged on the lower support frame;

[0015] a lower bearing seat, the lower bearing seat being arranged on the lower bearing support member and being used to support the lower bearing;

[0016] a lower shaft support member slidably provided on the lower bearing support member and capable of moving in an up-down direction; and

[0017] A lower plug is arranged at the lower end of the lower shaft support; wherein a lower spring is arranged between the lower plug and the lower shaft support, and the lower spring is in a pre-compressed state to provide an upward force to the lower shaft support through the lower spring.

[0018] According to the shaft assembly press-fitting device of at least one embodiment of the present disclosure, the lower tooling module further includes:

[0019] A lifting assembly is used to apply an upward force to the lower plug.

[0020] According to the shaft assembly press-fitting device of at least one embodiment of the present disclosure, the jacking assembly includes:

[0021] A lifting drive device, wherein the lifting drive device is fixed to the frame;

[0022] a jacking rod, the jacking rod being arranged on the jacking drive device so as to be driven by the jacking drive device to move the jacking rod upward and downward; and

[0023] A lower locking device is provided on the frame and is used to lock the lifting rod when the lifting rod is in a state of lifting the lower plug.

[0024] According to the shaft assembly press-fitting device of at least one embodiment of the present disclosure, the lower locking device includes a lower locking drive device and a bearing block installed on the lower locking drive device;

[0025] The lower locking drive device can be directly or indirectly installed on the frame, and can drive the load-bearing block to produce horizontal movement so that the load-bearing block can be in a locked position and an unlocked position; the side wall of the jacking rod is provided with a groove structure, when the load-bearing block is pushed to the locked position, it can cooperate with the groove structure of the jacking rod and limit the downward movement of the jacking rod; when the load-bearing block is pushed to the unlocked position, it can disengage from the jacking rod to allow the jacking rod to move downward.

[0026] According to the shaft assembly press-fitting device of at least one embodiment of the present disclosure, the upper tooling assembly includes at least one upper tooling module; wherein the number of the lower tooling modules is the same as that of the upper tooling modules, and they are arranged in a one-to-one correspondence.

[0027] According to at least one embodiment of the present disclosure, the shaft assembly press-fitting device further includes:

[0028] An upper sliding plate is connected to the lower sliding plate, wherein the upper sliding plate is driven by a transverse driving device so that the upper sliding plate and the lower sliding plate move together along a first direction.

[0029] According to the shaft assembly press-fitting device of at least one embodiment of the present disclosure, the upper tooling module is slidably disposed on the upper sliding plate, and the upper tooling module can be driven by a press-fitting driving device to approach or move away from the lower tooling module.

[0030] According to the shaft assembly press-fitting device of at least one embodiment of the present disclosure, when the upper sliding plate drives the upper tooling module to slide along the first direction, at least one of the upper tooling modules cooperates with the press-fitting drive device to drive the upper tooling module through the press-fitting drive device.

[0031] According to at least one embodiment of the shaft assembly press-fitting device of the present disclosure, the upper tooling module includes:

[0032] an upper fixing seat, the upper fixing seat being arranged on a connecting rod, wherein the connecting rod is slidably arranged on the upper sliding plate and the connecting rod can be driven to generate a lifting motion;

[0033] an upper fixing block, the upper fixing block being floatingly connected to the upper fixing seat via a floating device;

[0034] a shell portion, the shell portion being fixed to the upper fixing block;

[0035] an upper bearing retainer, the upper bearing retainer being mounted on the lower end of the housing portion and retaining the upper bearing;

[0036] An upper shaft press-fitting assembly is used to press-fit the shaft component to the lower bearing.

[0037] According to the shaft assembly press-fitting device of at least one embodiment of the present disclosure, the upper shaft press-fitting assembly includes:

[0038] an upper shaft press-fitting component, the upper shaft press-fitting component being slidably disposed on the outer shell portion and located inside the outer shell portion; wherein the upper shaft press-fitting component is formed with a center hole;

[0039] An upper shaft positioning component is located in the center hole of the upper shaft press-fit component.

[0040] According to the shaft assembly pressing device of at least one embodiment of the present disclosure, a top cover is provided at the upper end of the upper shaft pressing component, and a first spring is provided between the upper shaft positioning component and the top cover. The first spring can apply a thrust to the upper shaft positioning component and make the upper shaft positioning component be located at the maximum position of downward movement.

[0041] According to the shaft assembly press-fitting device of at least one embodiment of the present disclosure, a second spring is provided between the top cover and the upper fixing block, and the second spring can position the upper shaft press-fitting assembly at its maximum position in the downward movement direction.

[0042] According to the shaft assembly press-fitting device of at least one embodiment of the present disclosure, the upper tooling module further includes:

[0043] An upper locking device is used to lock the upper shaft press-fitting assembly, so that when the upper locking device locks the upper shaft press-fitting assembly, the upper shaft press-fitting assembly is used to press the shaft component onto the lower bearing; when the upper locking device releases the upper shaft press-fitting assembly, the upper shaft press-fitting assembly can be driven by the shaft component to move upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0045] Figure 1 It is a schematic structural diagram of a shaft assembly press-fitting device according to one embodiment of the present disclosure.

[0046] Figure 2 It is a structural schematic diagram of a shaft assembly press-fitting device from another angle according to an embodiment of the present disclosure.

[0047] Figure 3 yes Figure 2 A magnified schematic diagram of part A.

[0048] Figure 4 yes Figure 2 An enlarged schematic diagram of part B.

[0049] Figure 5 It is a structural schematic diagram of a lower tooling module according to an embodiment of the present disclosure.

[0050] Figure 6 It is a structural schematic diagram of the lower tooling module according to another angle of an embodiment of the present disclosure.

[0051] Figure 7It is a structural schematic diagram of a part of the structure of the lower tooling module according to one embodiment of the present disclosure.

[0052] Figure 8 It is a schematic cross-sectional structural diagram of a partial structure of a lower tooling module according to one embodiment of the present disclosure.

[0053] Figure 9 It is a structural schematic diagram of a portion of the structure of the lower tooling module according to an embodiment of the present disclosure from an angle.

[0054] Figure 10 It is a structural schematic diagram of a partial structure of a lower tooling module according to an embodiment of the present disclosure from another angle.

[0055] Figure 11 It is a structural schematic diagram of a shaft assembly press-fitting device according to an embodiment of the present disclosure from another angle.

[0056] Figure 12 yes Figure 11 An enlarged schematic diagram of part B.

[0057] Figure 13 It is a structural schematic diagram of an upper tooling module according to an embodiment of the present disclosure.

[0058] Figure 14 It is a structural schematic diagram of an upper tooling module from another angle according to an embodiment of the present disclosure.

[0059] Figure 15 It is a schematic cross-sectional structural diagram of an upper tooling module according to one embodiment of the present disclosure.

[0060] Figure 16 It is a structural schematic diagram of a portion of the structure of an upper tooling module according to one embodiment of the present disclosure.

[0061] The specific reference numerals in the figure are:

[0062] 300 connection structure

[0063] 310 roller

[0064] 400 connecting rod

[0065] 500 Press-fit drive unit

[0066] 600 upper sliding plate

[0067] 700 rack

[0068] 710 Workbench

[0069] 800 lower tooling module

[0070] 810 lower sliding plate

[0071] 820 lower support frame

[0072] 830 lower bearing support

[0073] 831 lower long hole

[0074] 840 lower shaft support

[0075] 841 lower positioning pin

[0076] 850 Lower plug

[0077] 860 Lifting Assembly

[0078] 861 Lifting Drive

[0079] 862 Lifting Rod

[0080] 863 Lower locking device

[0081] 863A Lower Locking Actuator

[0082] 863B bearing block

[0083] 870 lower bearing seat

[0084] 880 lower spring

[0085] 900 upper tooling module

[0086] 910 upper fixing seat

[0087] 915 Floating Device

[0088] 920 upper fixed block

[0089] 930 housing

[0090] 940 upper bearing retainer

[0091] 950 upper shaft press assembly

[0092] 951 Upper shaft press-fit parts

[0093] 952 upper shaft positioning component

[0094] 953 Top Cover

[0095] 954 First Spring

[0096] 960 Upper locking device

[0097] 961 Upper locking drive

[0098] 962 Briquetting

[0099] 970 Second spring. DETAILED DESCRIPTION

[0100] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the relevant content and are not intended to limit the present disclosure. It should also be noted that, for ease of description, only the portions relevant to the present disclosure are shown in the accompanying drawings.

[0101] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0102] Unless otherwise stated, the exemplary embodiments / examples shown are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of the various embodiments / examples may be further combined, separated, interchanged, and / or rearranged without departing from the technical concepts of the present disclosure.

[0103] The use of cross hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise indicated, the presence or absence of cross hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the order described. In addition, the same figure numbers represent the same components.

[0104] When a component is referred to as being “on,” “over,” “connected to,” or “coupled to” another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being “directly on,” “directly connected to,” or “directly coupled to” another component, there are no intervening components present. For this purpose, the term “connected” may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0105] For descriptive purposes, the present disclosure may use spatially relative terms such as "below," "beneath," "under," "down," "above," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the drawings is turned over, a component described as "below" or "beneath" another component or feature would then be positioned "above" the other component or feature. Thus, the exemplary term "below" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and as such, the spatially relative descriptors used herein should be interpreted accordingly.

[0106] The terms used herein are for the purpose of describing specific embodiments and are not intended to be restrictive. As used herein, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, the features, integral bodies, steps, operations, parts, assemblies and / or their groups stated are explained, but the presence or addition of one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups is not excluded. It should also be noted that, as used herein, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values and / or the values provided that will be recognized by those of ordinary skill in the art.

[0107] Figure 1 It is a schematic structural diagram of a shaft assembly press-fitting device according to one embodiment of the present disclosure. Figure 2 It is a structural schematic diagram of a shaft assembly press-fitting device from another angle according to an embodiment of the present disclosure. Figure 3 yes Figure 2 A magnified schematic diagram of part A. Figure 4 yes Figure 2 An enlarged schematic diagram of part B.

[0108] like Figures 1 to 4 As shown, the shaft assembly pressing device disclosed in the present invention can complete the assembly of the shaft assembly when in use; wherein, the shaft assembly may include a shaft component and a lower bearing and an upper bearing installed at both ends of the shaft component; from the decomposition action, the shaft assembly pressing device disclosed in the present invention first presses the lower end of the shaft component into the inner hole of the lower bearing, thereby realizing the installation of the lower bearing; then, the upper bearing is pressed onto the upper end of the shaft component, thereby realizing the installation of the entire shaft assembly.

[0109] In a specific embodiment, the shaft assembly press-fitting device disclosed herein may include components such as a frame 700 , a lower tooling assembly, and an upper tooling assembly.

[0110] The frame 700 of the present disclosure forms an overall frame structure. In a specific embodiment, the frame 700 can be welded together from structural members such as section steel. The frame 700 has a generally horizontal surface and a generally vertical surface. A workbench 710 can be secured to the generally horizontal surface of the frame 700. Therefore, the workbench 710 of the present disclosure is also generally horizontally disposed.

[0111] The lower tooling assembly is provided on the frame 700 and is used to hold the lower bearing. The lower tooling assembly of the present disclosure may include at least one lower tooling module 800. Preferably, the lower tooling module 800 of the present disclosure is provided as at least two. In a specific embodiment, as Figure 1 and Figure 2 As shown, the number of the lower tooling modules 800 disclosed in the present invention is three.

[0112] Of course, the number of the lower tooling modules 800 of the present disclosure is set to be related to the number of shaft components of the gearbox device; Figure 1 and Figure 2 The shaft assembly pressing device shown includes three lower tooling modules 800, and accordingly, can realize the pressing of three shaft components at one time, thereby improving production efficiency; moreover, in the present disclosure, the pressing of three shaft components can be realized through one work station, which reduces the capital investment in equipment, reduces the length of the production line and the floor space, improves the factory's automation level and production rhythm, saves a lot of manpower and time, and greatly improves the factory's efficiency.

[0113] In the present disclosure, when the lower tooling module 800 is set as one, the upper tooling module 900 is also set as one accordingly. At this time, the lower tooling module 800 is directly fixed on the workbench 710, and the upper tooling module 900 is slidably set on the frame 700. Thus, the assembly of the shaft assembly is realized through the cooperation of the lower tooling module 800 and the upper tooling module 900.

[0114] In another embodiment, Figure 4 As shown, when there are multiple lower tooling modules 800, the multiple lower tooling modules 800 are arranged along the first direction. In addition, the lower tooling module 800 may include a lower sliding plate 810, which is configured to slide along the first direction.

[0115] In other words, the workbench 710 of the present invention is provided with a lower guide rail, which is arranged along a first direction, wherein the first direction is a horizontal direction; the lower slider is slidably arranged on the lower guide rail. At this time, the lower sliding plate 810 is fixed to the lower slider, so that the lower sliding plate 810 can generate movement in the first direction.

[0116] Figure 5 It is a structural schematic diagram of a lower tooling module according to an embodiment of the present disclosure. Figure 6 It is a structural schematic diagram of the lower tooling module according to another angle of an embodiment of the present disclosure. Figure 7 It is a structural schematic diagram of a part of the structure of the lower tooling module according to one embodiment of the present disclosure. Figure 8 It is a schematic cross-sectional structural diagram of a partial structure of a lower tooling module according to one embodiment of the present disclosure. Figure 9 It is a structural schematic diagram of a portion of the structure of the lower tooling module according to an embodiment of the present disclosure from an angle. Figure 10 It is a structural schematic diagram of a partial structure of a lower tooling module according to an embodiment of the present disclosure from another angle.

[0117] In a specific embodiment, Figures 5 to 10 As shown, the lower tooling module 800 of the present disclosure may include: a lower support frame 820, a lower bearing support member 830, a lower shaft support member 840 and a lower plug 850 and other components.

[0118] Among them, the lower support frame 820 is arranged on the lower sliding plate 810; in the present disclosure, the lower support frame 820 is a cylindrical component as a whole, and a through hole is opened on the sliding plate 810, and the lower end of the lower support frame 820 is arranged on the outer periphery of the through hole of the sliding plate 810.

[0119] The lower bearing support 830 is arranged on the lower support frame 820; in the present disclosure, an outer flange can be formed at the upper end of the lower bearing support 830, and the outer diameter of the outer flange can be larger than the outer diameter of the upper end of the lower support frame 820, so that the lower support frame 820 can support the lower bearing support 830 through the cooperation between the lower surface of the outer flange of the lower bearing support 830 and the upper end surface of the lower support frame 820.

[0120] In a preferred embodiment, the lower bearing support 830 can be driven by the lifting assembly 860 described below to generate a lifting action. At this time, the lower bearing support 830 can slide in the vertical direction relative to the lower support frame 820.

[0121] More preferably, a long strip groove is provided on the side wall of the lower support frame 820, the length direction of the long strip groove is the vertical direction, and a limit pin is installed on the side wall of the lower bearing support 830. Thus, by slidably setting the limit pin in the long strip groove, the lower bearing support 830 can only move in the vertical direction relative to the lower support frame 820 without rotating.

[0122] A lower bearing seat 870 is provided on the lower bearing support member 830 for supporting the lower bearing; that is, the lower bearing seat 870 of the present disclosure is provided with a space capable of accommodating the lower bearing, thereby enabling the lower bearing to be positioned and supported on the lower bearing seat 870. In a preferred embodiment, the lower bearing support member 830 and the lower bearing seat 870 can be integrally formed or separately formed and fixed together, and the present disclosure is not limited thereto.

[0123] The lower shaft support 840 is slidably arranged on the lower bearing support 830, and the lower shaft support 840 can move in the up and down directions; that is, the lower shaft support 840 of the present disclosure can be in a floating state relative to the lower bearing support 830, so that when the shaft component is assembled, in the initial state, the upper end of the lower shaft support 840 can contact and position the lower end of the shaft component, for example, the lower end of the shaft component can be provided with a center hole, and at least part of the lower shaft support 840 is inserted into the center hole of the lower end of the shaft component; moreover, at least part of the upper surface of the lower shaft support 840 can contact the lower end surface of the shaft component, and when the shaft component is pressed downward and inserted into the lower bearing, the shaft component can push the lower shaft support 840 to move downward, thereby through the setting of the lower shaft support 840, the shaft component can be accurately guided to the center hole of the lower bearing, thereby realizing the alignment of the shaft component and the lower bearing.

[0124] In the present disclosure, the lower shaft support 840 is configured to be unable to rotate relative to the lower bearing support 830, and can only move in the vertical direction relative to the lower bearing support 830. Specifically, the lower bearing support 830 of the present disclosure is provided with a lower elongated hole 831, the length direction of which is the vertical direction; the lower plug 850 is provided with a lower positioning pin 841, which is configured to slide along the lower elongated hole 831. Therefore, the provision of the lower elongated hole 831 can, on the one hand, prevent the lower shaft support 840 from rotating relative to the lower bearing support 830, and on the other hand, can also limit the maximum upward movement position of the lower shaft support 840 and the maximum vertical movement position of the lower shaft support 840 through the elongated hole.

[0125] In the present disclosure, a lower plug 850 is disposed at the lower end of the lower shaft support 840; a lower spring 880 is disposed between the lower plug 850 and the lower shaft support 840. The lower spring 880 is in a pre-compressed state to provide an upward force to the lower shaft support 840 through the lower spring 880. Thus, when the lower shaft support 840 is not in contact with the lower end of the shaft component, the lower shaft support 840 can move to its maximum upward position, at which position the lower shaft support 840 can contact the lower end of the shaft component. On the other hand, when the lower shaft support 840 is driven by the shaft component and moves downward, and the shaft component and the lower bearing leave the lower tooling module 800, the return force of the lower spring 880 can push the lower shaft support 840 to its maximum upward position.

[0126] In the present disclosure, the lower tooling module 800 may further include a lifting assembly 860, which is used to apply an upward force to the lower plug 850. In other words, the lifting assembly 860 is not a necessary component of the present disclosure, but the lifting assembly 860 and the lower support frame 820 jointly support the lower bearing support 830, thereby allowing the lower bearing support 830 to bear a greater downward force.

[0127] In a preferred embodiment, Figures 5 to 7 As shown, the jacking assembly 860 of the present disclosure includes: a jacking drive device 861, a jacking rod 862 and a lower locking device 863 and other components.

[0128] The lifting drive device 861 is fixed to the frame 700. In one embodiment, the lifting drive device 861 can be fixed to the frame 700 by a bracket or other components. Moreover, the lifting drive device 861 can be implemented by a linear drive mechanism such as a cylinder, a hydraulic cylinder or an electric cylinder.

[0129] The lifting rod 862 is arranged on the lifting drive device 861 to drive the lifting rod 862 to move up and down through the lifting drive device 861; in a preferred embodiment, a guide device can be provided on the frame 700, which can guide the lifting process of the lifting rod 862, so that when pressure is applied to the lifting rod 862, it will not bend.

[0130] In the present disclosure, the lower locking device 863 is provided on the frame 700 , and is used to lock the lifting rod 862 when the lifting rod 862 is in a state of lifting the lower plug 850 .

[0131] Specifically, the lower locking device 863 of the present disclosure may include a lower locking drive device 863A and a load-bearing block 863B installed on the lower locking drive device 863A, wherein the lower locking drive device 863A can be directly or indirectly installed on the frame 700, and can drive the load-bearing block 863B to produce horizontal movement so as to be able to be in a locked position and an unlocked position; more specifically, the side wall of the lifting rod 862 is provided with a groove structure, when the load-bearing block 863B is pushed to the locked position, it can cooperate with the groove structure of the lifting rod 862 and limit the downward movement of the lifting rod 862; when the load-bearing block 863B is pushed to the unlocked position, it can disengage from the lifting rod 862 to allow the lifting rod 862 to move downward.

[0132] Thus, by disposing the load-bearing block 863B, the lower bearing support 830 of the present disclosure can transmit at least part of the downward force to the frame 700 through the lifting rod 862 and the load-bearing block 863B. In other words, the load-bearing block 863B of the present disclosure can be directly or indirectly disposed on the frame 700 and can slide relative to the frame 700, so that the load-bearing block 863B can transmit the force to the frame 700.

[0133] The upper tooling assembly is used to hold the upper bearing, wherein when the upper tooling assembly moves downward for the first time, it is used to press the lower end of the shaft component into the lower bearing; when the upper tooling assembly moves downward for the second time, it is used to press the upper bearing into the upper end of the shaft component.

[0134] In the present disclosure, when the lower end of the shaft component is pressed into the lower bearing, and / or when the upper end of the shaft component is pressed into the upper bearing, the shaft component can be positioned by other auxiliary components. The auxiliary components can be components such as a robotic arm.

[0135] The upper tooling assembly includes at least one upper tooling module 900; the lower tooling modules 800 are arranged in the same number as the upper tooling modules 900, and are arranged in a one-to-one correspondence. In a specific embodiment, the number of upper tooling modules 900 of the present disclosure is also set to three, so that the three upper tooling modules 900 cooperate with the lower tooling modules 800 to achieve the assembly of three shaft assemblies.

[0136] In the present disclosure, the shaft assembly press-fitting device further includes: an upper sliding plate 600, which is connected to a lower sliding plate 810, wherein the upper sliding plate 600 is driven by a transverse driving device so that the upper sliding plate 600 and the lower sliding plate 810 move together in the first direction.

[0137] At this time, an upper guide rail can be provided on the frame 700, and the upper guide rail is arranged along the first direction, wherein the first direction is the horizontal direction; the upper slider can be slidably provided on the upper guide rail. At this time, the upper sliding plate 600 is fixed to the upper slider, so that the upper sliding plate 600 and the lower sliding plate 810 can jointly generate movement in the first direction.

[0138] In the present disclosure, the upper sliding plate 600 can be driven by a horizontal drive device to move in a first direction. In a preferred embodiment, the horizontal drive device can be a ball screw structure. In particular, the ball screw drive structure can be implemented using products in the prior art, which will not be described in detail in this disclosure.

[0139] The upper tooling module 900 is slidably disposed on the upper sliding plate 600, and can be driven by the press-fitting drive device 500 to move closer to or further away from the lower tooling module 800. In other words, the upper tooling module 900 of the present disclosure has two degrees of freedom of movement: a first degree of freedom of movement generated by being driven by the upper sliding plate 600, and a vertical degree of freedom of movement (a second direction) generated by being driven by the press-fitting drive device 500.

[0140] In a preferred embodiment, the press-fitting drive device 500 may be a servo press, which may have a force control function, thereby preventing the shaft assembly from being damaged during the assembly process.

[0141] Figure 11 It is a structural schematic diagram of a shaft assembly press-fitting device according to an embodiment of the present disclosure from another angle. Figure 12 yes Figure 11 An enlarged schematic diagram of part B.

[0142] When the upper sliding plate 600 drives the upper tooling modules 900 to slide in the first direction, at least one of the upper tooling modules 900 cooperates with the press-fitting drive device 500 to drive the upper tooling module 900. Therefore, the press-fitting drive device 500 of the present disclosure can be provided as one, and does not need to be provided with the same number as the upper tooling modules 900, thereby reducing the number of press-fitting drive devices 500.

[0143] More specifically, if Figure 11 and Figure 12As shown, the upper sliding plate 600 of the present invention is provided with a slider, and a guide rail is slidably provided in the slider, so that the guide rail can slide in the vertical direction; a connecting rod 400 is fixed on the guide rail, and the lower end of the connecting rod 400 is used to connect the upper tooling module 900, and the upper end of the connecting rod 400 is provided with a connecting structure 300. In a specific embodiment, the connecting structure 300 may include a concave cavity. When the connecting rod 400 is driven by the upper sliding plate 600 to move in a first direction, the connecting structure 300 can be combined with or disengaged from the press-fitting drive device 500, and when the connecting structure 300 is combined with the press-fitting drive device 500, the press-fitting drive device 500 can drive the connecting structure 300 and the connecting rod 400 connected to the connecting structure 300 to produce a lifting movement.

[0144] Moreover, a roller 310 is provided on the connecting structure 300, and a slide is provided on the upper sliding plate 600. The roller 310 can slide along the slide and be supported by the slide, so that the upper tooling module 900 that is not in a working state will be driven to a position away from the lower tooling module 800.

[0145] Specifically, an opening is formed in the middle of the slideway, which allows the roller 310 to pass through. When an upper tooling module 900 moves to a position corresponding to the opening, the press-fitting drive device 500 can drive the upper tooling module 900 downward. After the shaft assembly is assembled, the press-fitting drive device 500 can drive the upper tooling module 900 upward, so that the roller 310 corresponding to the upper tooling module 900 is positioned above the slideway opening. Then, the upper sliding plate 600 is driven to move in a first direction. In the first direction, the roller 310 corresponding to the upper tooling module 900 leaves the slideway opening and is supported by the slideway.

[0146] By repeating this cycle, the three upper tooling modules 900 can be driven and the three shaft assemblies can be assembled.

[0147] Figure 13 It is a structural schematic diagram of an upper tooling module according to an embodiment of the present disclosure. Figure 14 It is a structural schematic diagram of an upper tooling module from another angle according to an embodiment of the present disclosure. Figure 15 It is a schematic cross-sectional structural diagram of an upper tooling module according to one embodiment of the present disclosure. Figure 16 It is a structural schematic diagram of a portion of the structure of an upper tooling module according to one embodiment of the present disclosure.

[0148] like Figures 13 to 16 As shown, the upper tooling module 900 of the present disclosure includes: an upper fixing seat 910, an upper fixing block 920, a shell portion 930, an upper bearing retainer 940 and an upper shaft press assembly 950 and other structures.

[0149] The upper fixing seat 910 is disposed on the connecting rod 400 , so that when the connecting rod 400 is driven to move up and down, the upper tooling module 900 including the upper fixing seat 910 can generate a lifting movement.

[0150] The upper fixing block 920 is floatingly connected to the upper fixing seat 910 via the floating device 915 , thereby making the upper fixing block 920 have a certain floating effect.

[0151] The outer shell portion 930 is fixed to the upper fixing block 920 ; wherein, the outer shell portion 930 is formed into a cylindrical structure, an upper end of which is fixedly connected to the upper fixing block 920 , and a lower end of which is connected to the upper bearing retainer 940 .

[0152] The upper bearing retainer 940 is provided with a space capable of accommodating the upper bearing, and the upper shaft press assembly 950 is provided with a steel ball that can shrink inward by the squeezing action, and the inner ring of the upper bearing is retained by the steel ball so that the upper bearing will not fall off the upper bearing retainer 940.

[0153] In the present disclosure, the upper shaft press assembly 950 can be used to press fit the lower end of the shaft component into the hole of the lower bearing. Specifically, the lower end of the upper shaft press assembly 950 of the present disclosure can contact the upper end of the shaft component and apply pressure to the upper end of the shaft component, which causes the shaft component to move downward, and accordingly, its lower end is pressed into the inner hole of the lower bearing.

[0154] In a preferred embodiment, the upper shaft pressing assembly 950 may include: an upper shaft pressing component 951 and an upper shaft positioning component 952; wherein, the upper shaft pressing component 951 can be slidably arranged on the outer shell part 930 and is located inside the outer shell part 930; a center hole is formed inside the upper shaft pressing component 951; the upper shaft positioning component 952 can be slidably arranged on the upper shaft pressing component 951, and the upper shaft positioning component 952 is located in the center hole of the upper shaft pressing component 951.

[0155] A top cover 953 is provided at the upper end of the upper shaft pressing component 951, and a first spring 954 is provided between the upper shaft positioning component 952 and the top cover. The first spring 954 can apply a thrust to the upper shaft positioning component 952 and make the upper shaft positioning component 952 located at the maximum position of downward movement.

[0156] Furthermore, a second spring 970 is provided between the top cover 953 and the upper fixing block 920 , and the second spring 970 can enable the upper shaft press assembly 950 to be at the maximum position in the downward movement direction.

[0157] In the present disclosure, the upper tooling module 900 also includes an upper locking device 960, which is used to lock the upper shaft press-fitting assembly 950, so that when the upper locking device 960 locks the upper shaft press-fitting assembly 950, the upper shaft press-fitting assembly 950 is used to press the shaft component onto the lower bearing; when the upper locking device 960 releases the upper shaft press-fitting assembly 950, the upper shaft press-fitting assembly 950 can be driven by the shaft component to move upward.

[0158] Specifically, the upper locking device 960 disclosed herein includes an upper locking drive device 961 and a pressure block 962 arranged on the upper locking drive device 961; wherein, the upper locking drive device 961 can be fixed to the upper fixed block 920, and the upper locking drive device 961 can be a linear drive mechanism such as a cylinder, a hydraulic cylinder or an electric cylinder. The outer portion of the shell portion 930 is provided with a through hole, and the pressing block 962 can be driven by the upper locking drive device 961 and move in the horizontal direction; moreover, the pressing block 962 of the present disclosure can contact the lower surface of the upper fixed block 920 and can slide along the lower surface of the upper fixed block 920, thereby, when the upper locking device 960 of the present disclosure is in the locked position, that is, when the upper locking device 960 locks the upper shaft pressing assembly 950, the upward force applied by the upper shaft pressing assembly 950 to the pressing block 962 will be applied to the upper fixed block 920, thereby, the upper shaft pressing assembly 950 can press the shaft component to the lower bearing; in addition, after the assembly of the shaft component and the lower bearing is completed, the upper locking device 960 will move to the unlocked position. At this time, when the upper locking device 960 releases the upper shaft pressing assembly 950, the upper shaft pressing assembly 950 can be driven by the shaft component to move upward, thereby, the upper shaft pressing assembly 950 will not affect the pressing of the upper bearing.

[0159] In the present disclosure, a long strip hole is opened on the shell part 930, and the length direction of the long strip hole is the vertical direction. Moreover, a positioning pin is provided on the upper shaft pressing component 951, and the positioning pin is slidably set in the long strip hole, so that the maximum position of the upper shaft pressing component 951 in the downward direction can be limited by the setting of the positioning pin.

[0160] Similarly, an elongated hole may be provided on the upper shaft pressing component 951, and the length direction of the elongated hole is vertical. Moreover, a positioning pin is provided on the upper shaft positioning component 952, and the positioning pin is slidably set in the elongated hole. Thus, the setting of the positioning pin can limit the maximum downward position of the upper shaft positioning component 952.

[0161] The assembly of dual electric drive motor shafts in the existing technology is difficult, and the electric drive system has a large number of motor shafts. Bearings need to be installed on both the upper and lower sides of each motor shaft. The traditional installation method has many steps and requires a large number of equipment, which seriously affects the efficiency of automated assembly.

[0162] Compared with the existing technology, the shaft component pressing device disclosed in the present invention can simultaneously press-fit the shaft component and the upper and lower bearings, which can save half the time; moreover, multiple motor shaft (shaft assembly) products can be assembled sequentially at the same workstation, which saves both time cost and equipment investment cost; and the upper tooling assembly has two sections of elastic settings, which correspond to the press-fitting of two products respectively, saving equipment investment cost; the press-fitting process can use a servo press with a force control function element, which can not only ensure stable and reliable assembly, but also better protect the product from damage during the assembly process.

[0163] The shaft assembly press-fitting device disclosed in the present invention may further include a detection device, which may be a reflective switch or a trigger switch, etc., so as to determine whether the shaft component, upper bearing and lower bearing are in a preset position, that is, whether these components are in place, through these detection devices.

[0164] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments / methods or examples. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0165] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0166] Those skilled in the art will appreciate that the above embodiments are merely intended to clearly illustrate the present disclosure and are not intended to limit the scope of the present disclosure. Other changes or modifications may be made based on the above disclosure, and such changes or modifications are still within the scope of the present disclosure.

Claims

1. A shaft assembly press-fitting device, wherein the shaft assembly comprises a shaft component and a lower bearing and an upper bearing mounted on both ends of the shaft component; characterized in that: include: frame; A lower tooling assembly, the lower tooling assembly being arranged on the frame and being used for holding a lower bearing; An upper tooling assembly is used to hold an upper bearing, wherein when the upper tooling assembly moves downward for the first time, it is used to press the lower end of the shaft component into the lower bearing; when the upper tooling assembly moves downward for the second time, it is used to press the upper bearing into the upper end of the shaft component.

2. The shaft assembly press-fitting device according to claim 1, characterized in that: The lower tooling assembly includes at least one lower tooling module; when the lower tooling module is provided in plurality, the plurality of lower tooling modules are arranged along a first direction.

3. The shaft assembly press-fitting device according to claim 2, characterized in that: The lower tooling module includes a lower sliding plate, and the lower sliding plate is configured to slide along a first direction.

4. The shaft assembly press-fitting device according to claim 3, characterized in that: The lower tooling module includes: a lower support frame, the lower support frame being arranged on the lower sliding plate; a lower bearing support member, the lower bearing support member being arranged on the lower support frame; a lower bearing seat, the lower bearing seat being arranged on the lower bearing support member and being used to support the lower bearing; a lower shaft support member slidably provided on the lower bearing support member and capable of moving in an up-down direction; and A lower plug is arranged at the lower end of the lower shaft support; wherein a lower spring is arranged between the lower plug and the lower shaft support, and the lower spring is in a pre-compressed state to provide an upward force to the lower shaft support through the lower spring.

5. The shaft assembly press-fitting device according to claim 4, characterized in that: The lower tooling module also includes: A lifting assembly is used to apply an upward force to the lower plug.

6. The shaft assembly press-fitting device according to claim 5, characterized in that: The jacking assembly includes: A lifting drive device, wherein the lifting drive device is fixed to the frame; a jacking rod, the jacking rod being arranged on the jacking drive device so as to be driven by the jacking drive device to move the jacking rod upward and downward; and A lower locking device is provided on the frame and is used to lock the lifting rod when the lifting rod is in a state of lifting the lower plug.

7. The shaft assembly press-fitting device according to claim 6, characterized in that: The lower locking device includes a lower locking drive device and a load-bearing block installed on the lower locking drive device; The lower locking drive device can be directly or indirectly installed on the frame, and can drive the load-bearing block to produce horizontal movement so that the load-bearing block can be in a locked position and an unlocked position; the side wall of the jacking rod is provided with a groove structure, when the load-bearing block is pushed to the locked position, it can cooperate with the groove structure of the jacking rod and limit the downward movement of the jacking rod; when the load-bearing block is pushed to the unlocked position, it can disengage from the jacking rod to allow the jacking rod to move downward.

8. The shaft assembly press-fitting device according to claim 3, characterized in that: The upper tooling assembly includes at least one upper tooling module; wherein the number of the lower tooling modules is the same as that of the upper tooling modules, and they are arranged in a one-to-one correspondence.

9. The shaft assembly press-fitting device according to claim 8, characterized in that: Also includes: An upper sliding plate is connected to the lower sliding plate, wherein the upper sliding plate is driven by a transverse driving device so that the upper sliding plate and the lower sliding plate move together along a first direction.

10. The shaft assembly press-fitting device according to claim 9, characterized in that: The upper tooling module is slidably disposed on the upper sliding plate, and the upper tooling module can be driven by a press-fitting driving device to approach or move away from the lower tooling module.

11. The shaft assembly press-fitting device according to claim 10, characterized in that: When the upper sliding plate drives the upper tooling modules to slide along the first direction, at least one of the upper tooling modules cooperates with the press-fitting driving device to drive the upper tooling module through the press-fitting driving device.

12. The shaft assembly press-fitting device according to claim 9, characterized in that: The upper tooling module includes: an upper fixing seat, the upper fixing seat being arranged on a connecting rod, wherein the connecting rod is slidably arranged on the upper sliding plate and the connecting rod can be driven to generate a lifting motion; an upper fixing block, the upper fixing block being floatingly connected to the upper fixing seat via a floating device; a shell portion, the shell portion being fixed to the upper fixing block; an upper bearing retainer, the upper bearing retainer being mounted on the lower end of the housing portion and retaining the upper bearing; An upper shaft press-fitting assembly is used to press-fit the shaft component to the lower bearing.

13. The shaft assembly press-fitting device according to claim 12, wherein: The upper shaft press assembly comprises: an upper shaft press-fitting component, the upper shaft press-fitting component being slidably disposed on the outer shell portion and located inside the outer shell portion; wherein the upper shaft press-fitting component is formed with a center hole; An upper shaft positioning component is located in the center hole of the upper shaft press-fit component.

14. The shaft assembly press-fitting device according to claim 13, wherein: A top cover is provided at the upper end of the upper shaft pressing component, and a first spring is provided between the upper shaft positioning component and the top cover. The first spring can apply a thrust to the upper shaft positioning component and make the upper shaft positioning component be located at the maximum position of downward movement.

15. The shaft assembly press-fitting device according to claim 14, characterized in that: A second spring is provided between the top cover and the upper fixing block, and the second spring can enable the upper shaft press-fitting assembly to be at the maximum position in the downward movement direction.

16. The shaft assembly press-fitting device according to claim 12, wherein: The upper tooling module also includes: An upper locking device is used to lock the upper shaft press-fitting assembly, so that when the upper locking device locks the upper shaft press-fitting assembly, the upper shaft press-fitting assembly is used to press the shaft component onto the lower bearing; when the upper locking device releases the upper shaft press-fitting assembly, the upper shaft press-fitting assembly can be driven by the shaft component to move upward.

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