Bearing press fitting device

Abstract

The utility model discloses a bearing press-fitting device, relates to the technical field of bearing press-fitting, and is used for solving the problems that a speed reducer shell and a bearing cannot be centered due to inaccurate positioning, so that the assembly precision of the speed reducer shell and the bearing is low, press-fitting trimming is easily generated in the assembly process of the speed reducer shell and the bearing, and the NVH (Noise Vibration and Harshness) performance of a vehicle cannot be ensured. The bearing press-fitting device comprises a lower supporting seat, an upper supporting seat and a guide mechanism connected with the lower supporting seat and the upper supporting seat, and the guide mechanism is configured to enable the upper supporting seat to move in the first direction; the fixing tool is detachably connected to the side, back to the lower supporting base, of the upper supporting base. The bearing supporting structure is arranged on the lower supporting seat and penetrates through the upper supporting seat and the fixing tool, and the bearing supporting structure is configured to be used for supporting a bearing; the adjusting structure is connected with the bearing supporting structure and the lower supporting base and is configured to adjust the position of the bearing supporting structure in at least one of the first direction, the second direction and the third direction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearing press fitting, and particularly relates to a bearing press fitting device. BACKGROUND

[0002] The bearing press fitting device is a device specially used for accurately installing bearings into shafts, housings or other matched parts. The bearing press fitting device presses bearings into predetermined positions through mechanical force (such as hydraulic pressure, air pressure, electricity or manual operation), so as to ensure the stability and high accuracy of the installation process.

[0003] In the prior art, the workpiece is usually located below the press head, and the bearing is placed on the bearing support structure. After the bearing is placed, the reducer housing and the bearing cannot be centered due to inaccurate positioning, thereby affecting the assembly accuracy of the two. At the same time, due to the assembly accuracy problem, the reducer housing and the bearing may appear press fitting cutting edge problem in the assembly process, thereby failing to guarantee the NVH performance of the vehicle. CONTENT OF THE UTILITY MODEL

[0004] The bearing press fitting device provided by the present application can solve the problem that the assembly accuracy of the reducer housing and the bearing is low due to the fact that the two cannot be centered because of inaccurate positioning, and further solve the problem that the two easily appear press fitting cutting edge in the assembly process, and fail to guarantee the NVH performance of the vehicle.

[0005] To achieve the above purpose, the bearing press fitting device provided by the present application has a first direction, a second direction and a third direction intersecting with each other, and comprises:

[0006] A lower support seat having a first surface and a second surface oppositely arranged along the first direction;

[0007] An upper support seat arranged on the first surface and spaced apart from the lower support seat along the first direction;

[0008] A fixing tool detachably connected to one side of the upper support seat opposite to the lower support seat, the fixing tool being configured to fix a workpiece;

[0009] A bearing support structure arranged on the lower support seat and penetrating through the upper support seat and the fixing tool, the bearing support structure being configured to support a bearing to be fitted;

[0010] An adjusting structure connecting the bearing support structure and the lower support seat and being configured to adjust the position of the bearing support structure relative to the lower support seat along at least one of the first direction, the second direction and the third direction, so as to center the bearing and a bearing hole on the workpiece.

[0011] In some embodiments of the present application, the bearing support structure comprises:

[0012] a base, wherein an adjusting hole is provided on the base and penetrates through the base along the first direction;

[0013] The adjusting structure comprises a connecting bolt, an adjusting hole, and a connecting hole provided on the lower support base. The diameter of one of the connecting hole and the adjusting hole is adapted to the diameter of the connecting bolt, and the diameter of the other is greater than the diameter of the connecting bolt. The connecting bolt connects the base and the lower support base through the adjusting hole and the connecting hole to adjust the position of the bearing support structure in the second direction and the third direction.

[0014] In some embodiments of the present application, the adjusting structure further comprises a base and a spacer. The spacer is arranged between the base and the lower support plate. When the position of the bearing support structure matches the position of the workpiece in the first direction, a spacer with a suitable height is selected and supported between the base and the lower support plate.

[0015] In some embodiments of the present application, the bearing support structure comprises a base, and the adjusting structure comprises:

[0016] a first moving assembly and a second moving assembly. The first moving assembly is connected to the base through the second moving assembly. The first moving assembly is used to drive the second moving assembly and the base to move synchronously in the second direction. The second moving assembly is used to drive the base to move in the third direction.

[0017] In some embodiments of the present application, the bearing support structure comprises:

[0018] a base, which is detachably connected to the lower support base;

[0019] a support column, which is detachably connected to a side of the base opposite to the lower support base and extends along the first direction;

[0020] a connecting piece, which detachably connects the base and the lower support base;

[0021] a bearing positioning assembly, which is arranged on a side of the support column away from the base and is used to support the bearing.

[0022] In some embodiments of the present application, the connecting piece is a bolt. A receiving groove is provided on a side of the base facing the upper support base. At least part of the support column is located in the receiving groove. A first insertion hole is provided on the base and is perpendicular to the first direction. The first insertion hole is in communication with the receiving groove. Part of the support column located in the receiving groove is provided with a second insertion hole. The bolt is inserted into the first insertion hole and the second insertion hole.

[0023] In some embodiments of the present application, the support column is provided with a limiting portion on the outer periphery, and the limiting portion and the two end faces of the opposite side of the base abut when the support column extends into the accommodating groove.

[0024] In some embodiments of the present application, the bearing positioning assembly comprises an inner ring positioning ring, an outer ring positioning ring and a first elastic member; wherein the support column is provided with a mounting portion on the outer periphery, the inner ring positioning ring is fixed at one end of the support column opposite to the base, the outer ring positioning ring is sleeved on the outer periphery of the inner ring positioning ring and can move relative to the inner ring positioning ring in the first direction, the mounting portion is located on the side of the outer ring positioning ring facing the base, and the first elastic member extends in the first direction and is connected to the outer ring positioning ring and the mounting portion.

[0025] In some embodiments of the present application, the guide mechanism comprises:

[0026] A guide column extending in the first direction and connecting the lower support seat and the upper support seat;

[0027] A second elastic member sleeved on the outer periphery of the guide column and arranged between the lower support seat and the upper support seat.

[0028] In some embodiments of the present application, the bearing press-fitting device further comprises:

[0029] A positioning structure comprising a positioning hole and a positioning pin, one of the positioning holes is arranged on the upper support seat, and the other is arranged on the fixed tool to positionally connect the upper support seat and the fixed tool.

[0030] In some embodiments of the present application, the fixed tool is further provided with a positioning portion, the workpiece is provided with an adaptive portion, the positioning portion and the adaptive portion are assembled and connected to positionally connect the fixed tool and the workpiece.

[0031] In some embodiments of the present application, the bearing press-fitting device further comprises:

[0032] A pressing structure arranged on the fixed tool for pressing and fixing the fixed tool on the upper support seat.

[0033] In some embodiments of the present application, the fixed tool has a plurality of fixed tools, each of which is used to match different workpieces, and each of which is detachably connected to the upper support seat.

[0034] In some embodiments of the present application, the lower support seat and / or the fixed tool is provided with a handle.

[0035] In some embodiments of the present application, the workpiece is configured as a reducer housing, and the bearing press-fitting device further comprises:

[0036] The centering tool is detachably supported on the bearing support structure, and after the centering of the workpiece is completed, the centering tool is removed from the bearing support structure, and the bearing is placed on the bearing support structure.

[0037] The above technical solutions of the present application have at least the following beneficial effects:

[0038] In the technical solution, the lower support base is provided to bear the fixing tool, the bearing support structure and the adjusting structure, so as to realize the modular structure of the bearing press-fitting device. In addition, the adjusting structure enables the bearing support structure to be adjusted in position in at least one direction. In this way, the operator can adjust the mounting position of the bearing support structure connected to the lower support base in different directions as needed, so as to adjust the position of the bearing provided on the bearing support structure, ensure the accurate centering of the position of the bearing and the bearing hole of the workpiece provided on the fixing tool, and realize the precise mounting between the workpiece (such as a reducer housing) and the bearing, thereby solving the problem of press-fitting cutting edge and further ensuring the NVH performance of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0040] Figure 1 is a perspective view of the bearing press-fitting device in the embodiments of the present application;

[0041] Figure 2 is an exploded view of the lower support base and the bearing support structure in the embodiments of the present application;

[0042] Figure 3 is an exploded view of the bearing support structure in the embodiments of the present application;

[0043] Figure 4 is a top view of the bearing press-fitting device in the embodiments of the present application.

[0044] The main reference signs in the drawings of the present application are explained as follows:

[0045] 1 - lower support base; 11 - connecting hole;

[0046] 2 - upper support base;

[0047] 3 - guide mechanism; 31 - guide post; 32 - second elastic member;

[0048] 4 - fixing tool; 41 - positioning part; 42 - through hole;

[0049] 5 - bearing support structure; 51 - base; 511 - adjusting hole; 512 - accommodating groove; 513 - first insertion hole; 52 - support column; 521 - second insertion hole; 522 - limiting part; 523 - mounting part; 53 - connecting piece; 54 - bearing positioning assembly; 541 - inner ring positioning ring; 542 - outer ring positioning ring; 543 - first elastic member; 544 - sliding fit piece;

[0050] 6 - positioning structure;

[0051] 7 - pressing structure;

[0052] 8 - handle;

[0053] 9 - centering tool. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0055] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0056] The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0057] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, it can be direct connection, or indirect connection through intermediate medium, it can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0058] The present application provides a bearing press-fitting device, which will be described in detail below. It should be noted that the description order of the following embodiments is not limited as the preferred order of the embodiments of the present application. Moreover, in the following embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0059] With reference to Figure 1 and Figure 2 , the present application provides a bearing press-fitting device having a first direction Z, a second direction X and a third direction Y intersecting with each other. The bearing press-fitting device comprises a lower support base 1, an upper support base 2, a guide mechanism 3, a fixed tooling 4, a bearing support structure 5 and an adjusting structure. The guide mechanism 3 connects the lower support base 1 and the upper support base 2, and is configured to arrange the lower support base 1 and the upper support base 2 in a spaced manner in the first direction Z, and to enable the upper support base 2 to move along the first direction Z. The fixed tooling 4 is detachably connected to a side of the upper support base 2 facing away from the lower support base 1, and is configured to fix a workpiece. The bearing support structure 5 is provided on the lower support base 1 and passes through the upper support base 2 and the fixed tooling 4, and is configured to support a bearing. The adjusting structure connects the bearing support structure 5 and the lower support base 1, and is configured to adjust the position of the bearing support structure in at least one of the first direction Z, the second direction X and the third direction Y, so as to center the bearing and a bearing hole on the workpiece.

[0060] In this technical solution, the lower support base 1 is provided to bear the fixed tooling 4, the bearing support structure 5 and the adjusting structure, so as to realize the modular structure of the above-mentioned bearing press-fitting device. In addition, the adjusting structure enables the bearing support structure to be adjusted in position in at least one direction. In this way, the operator can adjust the mounting position of the bearing support structure 5 on the lower support base 1 in different directions as needed, so as to adjust the position of the bearing provided on the bearing support structure 5, and ensure that the position of the bearing and the bearing hole on the workpiece provided on the fixed tooling 4 is accurately centered, so as to realize the precise mounting between the workpiece (for example, a reducer housing) and the bearing, thereby solving the problem of press-fitting cutting edge, and further ensuring the NVH performance of the vehicle.

[0061] Based on the above embodiments, please refer to Figure 2The bearing support structure 5 comprises a base 51, and the base 51 is provided with an adjusting hole 511 penetrating in the first direction Z. The adjusting structure comprises a connecting bolt, the adjusting hole 511 and a connecting hole 11 provided on the lower support base 1, the diameter of one of the connecting hole 11 and the adjusting hole 511 is matched with the diameter of the connecting bolt, and the diameter of the other is larger than the diameter of the connecting bolt. The connecting bolt connects the base 51 and the lower support base 1 through the adjusting hole 511 and the connecting hole 11, so as to adjust the position of the bearing support structure 5 in the second direction X and the third direction Y. In other words, the adjusting structure is configured to adjust the position of the bearing support structure in the second direction X and the third direction Y. In this way, by designing one hole (usually used for fixing) with a diameter matched with the diameter of the connecting bolt and one hole (used for adjusting) with a diameter larger than the diameter of the connecting bolt, the relative position of the base 51 and the lower support base 1 in any direction perpendicular to the first direction Z (for example, the second direction X and the third direction Y) can be finely adjusted during installation. At the same time, in the case of quick assembly or on-site adjustment, this design can reduce the complexity of assembly, making the adjustment and fixing steps more simple and efficient.

[0062] Specifically, the above-mentioned base 51 is generally in the shape of a cuboid, and the four corners thereof are provided with adjusting holes 511. Correspondingly, the lower support base 1 is provided with four connecting holes 11, and the adjusting structure comprises four connecting bolts.

[0063] At the same time, in order to adjust the position of the bearing support structure 5 in the first direction Z, the adjusting structure further comprises a pad provided between the base 51 and the lower support plate. When the position of the bearing support structure 5 matches the position of the workpiece in the first direction Z, a pad with a suitable height is selected to support between the base 51 and the lower support plate. In this way, the pad can quickly realize the height adjustment between the base 51 and the lower support plate by selecting standard parts with different heights, so as to match different workpieces or support requirements. Moreover, the above-mentioned arrangement can avoid the complexity of precision machining adjustment, making the height adjustment simple and modular.

[0064] Alternatively, in order to realize the automatic adjustment of the position of the base 51 (i.e. the bearing support structure), the above-mentioned adjusting structure comprises a first moving assembly and a second moving assembly, the first moving assembly is connected with the base 51 through the second moving assembly, the first moving assembly is used to drive the second moving assembly and the base 51 to move synchronously in the second direction X, and the second moving assembly is used to drive the base 51 to move in the third direction Y, thereby realizing the position adjustment of the base 51 (i.e. the bearing support structure) in the second direction X and the third direction Y. For example, the above-mentioned moving assembly can be a sliding rail structure or a gear and rack structure.

[0065] Based on this, in order to realize the position adjustment of the base 51 in the first direction Z, a vertical driving mechanism can be arranged on the lower support plate, which is used to be connected with the first moving assembly to drive the first moving assembly to move along the first direction Z. For example, the vertical driving mechanism is a hydraulic cylinder, a pneumatic cylinder, a linear motor or the like.

[0066] Please refer to Figure 2 and Figure 3 , the bearing support structure further comprises a base 51, a support column 52, a connecting piece 53 and a bearing positioning assembly 54. The base 51 is detachably connected to the lower support base 1, and the support column 52 is detachably connected to the side of the base 51 away from the lower support base 1 and extends along the first direction Z. The connecting piece 53 detachably connects the base 51 and the lower support base 1. The bearing positioning assembly 54 is arranged on the side of the support column 52 away from the base 51 and is used to support the bearing, so that when it is necessary to replace bearings of different models, only the base 51 and the support column 52 need to be removed through the connecting piece 53, thereby improving the application range of the bearing press-fitting device.

[0067] For example, the connecting piece 53 is a latch. The side of the base 51 facing the upper support base 2 is provided with a receiving groove 512, and at least part of the support column 52 is located in the receiving groove 512. The base 51 is provided with a first insertion hole 513 perpendicular to the first direction Z, and the first insertion hole 513 communicates with the receiving groove 512. The part of the support column 52 located in the receiving groove 512 is provided with a second insertion hole 521, and the latch is inserted into the first insertion hole 513 and the second insertion hole 521 of the support column 52 to detachably connect the base 51 and the support column 52. In this way, the base 51 and the support column 52 can be quickly detached, and the assembly efficiency is improved.

[0068] In other embodiments, the above-mentioned connecting piece 53 can be a fastening bolt, and the base 51 and the support column 52 are provided with corresponding connecting threaded holes. Alternatively, the above-mentioned connecting piece 53 is a clamping hook, which is arranged on the base 51, and the support base is provided with a corresponding clamping hole, and the clamping hook and the clamping hole are clamped together.

[0069] In addition, the outer periphery of the above-mentioned support column 52 is provided with a limiting portion 522, and when at least part of the support column 52 extends into the receiving groove 512, the limiting portion 522 and the two end faces of the opposite side of the base 51 abut, and the limiting of the two in the first direction Z is realized by the mutual contact of the limiting portion 522 and the two end faces of the opposite side of the base 51. For example, the above-mentioned limiting portion 522 is a limiting ring arranged on the outer periphery of the support column 52. Alternatively, the limiting portion 522 is two limiting protrusions arranged on the outer periphery of the support column 52 and opposite to the radial direction of the support column 52 (in a cylindrical structure).

[0070] Please continue to refer to Figure 3The bearing positioning assembly 54 comprises an inner ring positioning ring 541, an outer ring positioning ring 542, and a first elastic member 543. The outer periphery of the support column 52 is provided with a mounting portion 523. The inner ring positioning ring 541 is fixed at one end of the support column 52 away from the base 51. The outer ring positioning ring 542 is sleeved on the outer periphery of the inner ring positioning ring 541 and can move along the first direction Z relative to the inner ring positioning ring 541. The mounting portion 523 is located on the side of the outer ring positioning ring 542 facing the base 51. The first elastic member 543 extends along the first direction Z and is connected to the outer ring positioning ring 542 and the mounting portion 523. By providing the first elastic member 543, the outer ring positioning ring 542 can be dynamically adjusted in the first direction Z. For example, the mounting portion 523 is a mounting ring, and the first elastic member 543 has a plurality of elastic members that are evenly spaced around the outer periphery of the support column 52. The two ends of the first elastic member 543 are respectively connected to the upper surface of the mounting ring and the lower end surface of the outer ring positioning ring 542.

[0071] In addition, the bearing positioning assembly 54 further comprises a sliding fitting member 544 connected to the inner ring positioning ring 541 and the outer ring positioning ring 542 to enable the outer ring positioning ring 542 to move along the first direction Z relative to the inner ring positioning ring 541. For example, the inner ring positioning ring 541 has a guide groove extending along the first direction Z, and the outer ring positioning ring 542 has a sliding pin connected thereto. At least part of the sliding pin protrudes from the inner wall of the outer ring positioning ring 542 and is in sliding fit with the guide groove.

[0072] The guide mechanism 3 comprises a guide column 31 extending along the first direction Z and connected to the lower support base 1 and the upper support base 2, and a second elastic member 32 sleeved on the outer periphery of the guide column 31 and arranged between the lower support base 1 and the upper support base 2. Thus, during the pressing process, the workpiece (reducer housing) can be accurately assembled with the bearing. In addition, the second elastic member 32 can absorb and buffer the force acting between the upper support base 2 and the lower support base 1 due to external load, vibration or impact, thereby protecting the entire device and key components from damage.

[0073] For example, the upper support base 2 is an upper support plate, and the lower support base 1 is a lower support plate. The guide structure has four guide structures, and each guide structure is arranged at a corner of the upper support plate and the lower support plate.

[0074] In order to ensure the installation accuracy of the upper support seat 2 and the fixing tool 4, the bearing press-fitting device further comprises a positioning structure 6. The positioning structure 6 comprises positioning holes and positioning pins, one of which is arranged on the upper support seat 2 and the other of which is arranged on the fixing tool 4 to positionally connect the upper support seat 2 and the fixing tool 4. In the specific use process, the cooperation of the positioning pin and the positioning hole can limit the relative position of the components, ensure the accurate alignment of the two components in the assembly process, and avoid positional deviation. Moreover, the use of the positioning hole and the positioning pin simplifies the assembly process, so that the operator can quickly complete the alignment without repeatedly adjusting the position of the components.

[0075] Please continue to refer to Figure 1 , the fixing tool 4 is further provided with a positioning portion 41, and the workpiece is provided with an adaptive portion, the positioning portion 41 and the adaptive portion are assembled and connected, used for positioningally connecting the fixing tool 4 and the workpiece, and ensuring the assembly accuracy between the fixing tool 4 and the workpiece. For example, the positioning portion 41 is a positioning column, which protrudes from the upper surface (the side surface facing away from the upper support seat 2) of the fixing tool 4.

[0076] The bearing press-fitting device further comprises a pressing structure 7 arranged on the fixing tool 4, used for pressing and fixing the fixing tool 4 on the upper support seat 2, and ensuring the stable connection therebetween. For example, the pressing structure 7 comprises a pressing pin, which comprises a first columnar segment, a second columnar segment and a pressing portion connected in sequence along the first direction Z, the first columnar segment extends into the accommodating hole of the fixing tool 4 and the upper support seat 2 in sequence, and the diameter of the first columnar segment is smaller than that of the second columnar segment, so as to form a pressing step surface at the connection position of the two, which abuts against the upper surface of the fixing tool 4.

[0077] In order to improve the use range of the above-mentioned bearing press-fitting device, the above-mentioned fixing tool 4 has a plurality of fixing tools 4, each of which is used to match different workpieces (such as a reducer front shell and a reducer rear shell), and each of which is detachably connected to the upper support seat 2. Correspondingly, the bearing support structure 5 also has a plurality of bearing support structures 5 to match the bearing holes on different workpieces.

[0078] As can be understood from Figure 4 , the above-mentioned fixing tool 4 is provided with a through hole 42 through which the bearing support structure 5 passes, and the upper support seat 2 is provided with a through hole through which the bearing support structure 5 passes. In order to ensure that the fixing tool 4 and the upper support seat 2 do not interfere with the movement of the bearing support structure 5 when the adjusting structure adjusts the installation position of the bearing support structure 5, a gap is formed between the above-mentioned through hole 42 and the outer periphery of the bearing support structure 5, which is used to provide a movement space for the bearing support structure 5.

[0079] In order to facilitate the handling or installation of the bearing press-fitting device, the lower support base 1 and / or the fixed tooling 4 are provided with handles 8. The handles 8 have two pairs, one pair of handles 8 is arranged on the fixed tooling 4 and located opposite to each other in the second direction X or the third direction Y. The other pair of handles 8 is arranged on the lower support base 1 and located opposite to each other in the second direction X or the third direction Y.

[0080] In some embodiments, the workpiece is configured as a reducer housing, and the bearing press-fitting device further comprises a centering tool 9 which is detachably supported on the bearing support structure 5. After the centering tool 9 is centered with the workpiece, the centering tool 9 is removed from the bearing support structure 5, and the bearing is placed on the bearing support structure 5, avoiding damage to the bearing during the centering process. During the centering process, the centering of the bearing and the workpiece is completed by the centering tool 9. After the centering is completed, the centering tool 9 is removed from the bearing support structure 5, and the bearing is placed on the bearing support structure 5. For example, the centering tool 9 is annular and is supported between the inner ring positioning ring 541 and the outer ring positioning ring 542 of the bearing support structure 5.

[0081] When the workpiece is configured as a reducer housing, the bearing support structure 5 has two, respectively comprising an output shaft bearing support structure and an intermediate shaft bearing support structure. The output shaft bearing support structure and the intermediate shaft bearing support structure are connected to the lower support base 1 through respective adjusting joints, and the top of both is sequentially arranged in the upper support base 2 and the fixed tooling 4.

[0082] The use process of the bearing press-fitting device will be described in detail below. The use process is as follows:

[0083] The centering tool 9 is placed on the output shaft bearing support structure, and the reducer housing is positioned on the positioning pin of the fixed tooling 4 to complete the positioning. It is confirmed whether the centering of the output shaft bearing support structure and the bearing chamber (or bearing hole) of the reducer housing is normal. If the centering is abnormal, the output shaft bearing support structure 5 can be adjusted through the adjusting structure, and the normal centering is confirmed.

[0084] The centering tool 9 is placed on the intermediate shaft bearing support structure, and the reducer housing is positioned on the positioning pin of the fixed tooling 4 to complete the positioning. It is confirmed whether the centering of the intermediate shaft bearing support structure and the bearing chamber (or bearing hole) of the reducer housing is normal. If the centering is abnormal, the intermediate shaft bearing support structure can be adjusted through the adjusting structure, and the normal centering is confirmed.

[0085] After the centering is confirmed, the centering tool 9 is removed, and the bearings are respectively placed on the output shaft bearing support structure and the intermediate shaft bearing support structure.

[0086] The ram reducer housing is moved downward to press the output shaft bearing and the intermediate shaft bearing into the reducer housing, thereby completing the assembly.

[0087] In the description of the present specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0088] The above is merely specific implementation of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims. In addition, the principle and implementation of the present application are described by applying specific examples in the specification, the above example description is only for helping to understand the method and its core idea of the present application, and the content of the specification should not be understood as limiting the present application.

Claims

1. A bearing press fitting device characterized by comprising: The bearing press-fitting device has a first direction, a second direction and a third direction intersecting with each other, and comprises: a lower support base, an upper support base, and a guide mechanism connecting the lower support base and the upper support base, the guide mechanism being configured to arrange the lower support base and the upper support base at intervals in the first direction and to enable the upper support base to move in the first direction; a fixing tool detachably connected to a side of the upper support base opposite to the lower support base, the fixing tool being configured to fix a workpiece; a bearing support structure provided on the lower support base and passing through the upper support base and the fixing tool, the bearing support structure being configured to support a bearing; an adjusting structure connecting the bearing support structure and the lower support base and being configured to adjust the position of the bearing support structure in at least one of the first direction, the second direction and the third direction to center the bearing and a bearing hole on the workpiece.

2. The bearing press fitting apparatus according to claim 1, characterized by The bearing support structure comprises: a base provided with an adjusting hole passing through in the first direction; wherein the adjusting structure comprises a connecting bolt, an adjusting hole and a connecting hole provided on the lower support base, the diameter of one of the connecting hole and the adjusting hole is matched with the diameter of the connecting bolt, and the diameter of the other is greater than the diameter of the connecting bolt, the connecting bolt connects the base and the lower support base through the adjusting hole and the connecting hole to adjust the position of the bearing support structure in the second direction and the third direction.

3. Bearing press fitting device according to claim 1 or 2, characterized in that The adjusting structure comprises a base and a spacer, the spacer is provided between the base and the lower support base, and a spacer with a suitable height is selected to support between the base and the lower support base when the position of the bearing support structure matches the position of the workpiece in the first direction.

4. The bearing press fitting apparatus according to claim 1, characterized by The bearing support structure comprises a base, and the adjusting structure comprises: a first moving assembly and a second moving assembly, the first moving assembly is connected to the base through the second moving assembly, the first moving assembly is used to drive the second moving assembly and the base to move synchronously in the second direction, and the second moving assembly is used to drive the base to move in the third direction.

5. The bearing press fitting apparatus according to claim 1, wherein The bearing support structure comprises: a base detachably connected to the lower support base; a support column detachably connected to a side of the base opposite to the lower support base and extending in the first direction; a connecting piece detachably connecting the base and the lower support base; a bearing positioning assembly provided on a side of the support column away from the base and used to support the bearing.

6. The bearing press fitting apparatus according to claim 5, wherein The connecting piece is a bolt; wherein a receiving groove is provided on a side of the base facing the upper support base, at least part of the support column is located in the receiving groove, a first insertion hole perpendicular to the first direction is provided on the base, the first insertion hole communicates with the receiving groove, part of the support column located in the receiving groove is provided with a second insertion hole, and the bolt is inserted into the first insertion hole and the second insertion hole.

7. The bearing press fitting apparatus according to claim 6, wherein The support column is provided with a limiting portion on the outer periphery, and the limiting portion and the two end faces of the opposite side of the base abut when at least part of the support column extends into the accommodating groove.

8. The bearing press fitting apparatus according to claim 5, wherein The bearing positioning assembly comprises an inner ring positioning ring, an outer ring positioning ring and a first elastic member; wherein the support column is provided with a mounting portion on the outer periphery, the inner ring positioning ring is fixed at one end of the support column away from the base, the outer ring positioning ring is sleeved on the outer periphery of the inner ring positioning ring and can move relative to the inner ring positioning ring in the first direction, the mounting portion is located on the side of the outer ring positioning ring facing the base, and the first elastic member extends in the first direction and is connected to the outer ring positioning ring and the mounting portion.

9. The bearing press installation of claim 1, wherein, The guiding mechanism comprises: a guiding column extending in the first direction and connecting the lower support base and the upper support base; a second elastic member sleeved on the outer periphery of the guiding column and arranged between the lower support base and the upper support base.

10. The bearing press installation of claim 1, wherein, Further comprising: a positioning structure comprising positioning holes and positioning pins, one of the positioning holes is arranged on the upper support base, and the other is arranged on the fixed tooling to positionally connect the upper support base and the fixed tooling.

11. The bearing press installation of claim 1, wherein, The fixed tooling is further provided with a positioning portion, and the workpiece is provided with an adaptive portion, the positioning portion and the adaptive portion are assembled and connected, and are used to positionally connect the fixed tooling and the workpiece.

12. The bearing press installation of claim 1, wherein, Further comprising: a pressing structure arranged on the fixed tooling and used to press and fix the fixed tooling on the upper support base.

13. The bearing press installation of claim 1, wherein, The fixed tooling has a plurality of fixed toolings, each of which is used to match different workpieces, and each of which is detachably connected to the upper support base.

14. The bearing press installation of claim 1, wherein, The lower support base and / or the fixed tooling is provided with a handle.

15. The bearing press installation of claim 1, wherein, The workpiece is configured as a reducer housing, and the bearing press fitting device further comprises: a centering tooling which is detachably supported on the bearing support structure, and after the centering tooling and the workpiece are centered, the centering tooling is removed from the bearing support structure, and the bearing is placed on the bearing support structure.

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