A positioning mechanism and a bearing automatic assembly device

Abstract

The present invention relates to a positioning mechanism and an automatic bearing assembly device, wherein the positioning mechanism comprises a first positioning mounting plate, a first positioning assembly, a positioning block and a rotating motor, wherein the rotating motor is fixed to the first positioning mounting plate and is used to drive the assembly shaft of the first positioning assembly to rotate at a fixed angle, wherein a positioning mounting portion is provided at the other end of the assembly shaft, wherein an elastic component is provided at the outer peripheral side of the positioning mounting portion, wherein the positioning block is movably connected to the first positioning mounting plate, wherein a positioning hole is provided at the other end of the positioning block, wherein the bearing core comprises a main body and a plurality of connecting portions, wherein the middle portion of the main body has a first center hole extending along the axial direction of the assembly shaft, wherein the plurality of connecting portions are respectively connected to the outer side surface of the main body, wherein when the main body is sleeved on the positioning mounting portion through the first center hole, one end of the elastic component abuts against the inner side wall of the first center hole, wherein one of the connecting portions is located in the positioning hole, and the connecting portion and the positioning hole are in a clearance fit. Thus, the problem that the existing tripod body cannot achieve accurate positioning is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic assembly equipment, and in particular to a positioning mechanism and an automatic bearing assembly device. Background Art

[0002] As the main component of the ball cage, the three-pronged ball ring is a key part of the automobile transmission system. It can transfer the power of the engine from the transmission to the wheels to achieve high-speed operation of the automobile. It is an indispensable part of automobile parts. And with the development of the automobile industry and the improvement of people's living standards, the existing market has a very high number of cars, the automobile market is still large, and the number of three-pronged balls required is also large. Therefore, it is necessary to improve the processing efficiency of the three-pronged ball ring and ensure the processing quality of the three-pronged ball ring.

[0003] At present, the existing processing of the tripod ball ring on the market is to press three ball ring bearings into the three columns of the tripod body in sequence. Since the tripod body cannot be accurately positioned, it is easy to cause damage to the roller assembled between the outer ring and the inner ring of the ball ring bearing during the assembly process, affecting the processing quality of the tripod ball ring. Summary of the invention

[0004] In order to solve the problem that the existing tripod body cannot achieve accurate positioning, the present invention provides a positioning mechanism and an automatic bearing assembly device.

[0005] In a first aspect, the present invention provides a positioning mechanism for positioning a bearing core, the positioning mechanism comprising a first positioning mounting plate, a first positioning assembly, a positioning block and a rotating motor, wherein the rotating motor is fixed to the first positioning mounting plate, the first positioning assembly comprises an assembly shaft and an elastic assembly, the rotating motor drives the assembly shaft to rotate at a fixed angle, the assembly shaft has a positioning mounting portion on a side away from the rotating motor, the elastic assembly is arranged on an outer peripheral side of the positioning mounting portion, the positioning block is movably connected to the first positioning mounting plate, the positioning block moves along the axial direction of the assembly shaft relative to the first positioning mounting plate, the other end of the positioning block is extended along the axial direction of the assembly shaft away from the side of the rotating motor, and the other end of the positioning block is provided with a positioning hole;

[0006] The bearing core comprises a main body and a plurality of connecting parts, wherein the middle part of the main body has a first central hole extending along the axial direction of the assembly axis, and the plurality of connecting parts are respectively connected to the outer side surface of the main body;

[0007] When the main body is sleeved on the positioning and mounting portion through the first center hole, one end of the elastic component away from the assembly axis abuts against the inner wall of the first center hole, and one of the connecting parts is located in the positioning hole, and the connecting part and the positioning hole are clearance-fitted.

[0008] In some embodiments, the positioning mechanism further includes a first positioning unit, the first positioning unit further includes a first driving assembly and a first push plate located on one side of the first driving assembly, the first driving assembly is fixed to the first positioning mounting plate, the positioning block is fixed to the first push plate, and one end of the positioning block on the side where the positioning hole is located is arranged away from the first driving assembly;

[0009] The first driving assembly is used to push the first push plate to reciprocate between a first position and a second position along the axial direction of the assembly shaft; wherein, when the first push plate is located at the first position, one end of the positioning block located on the side where the positioning hole is located is arranged away from the bearing core; when the first push plate is located at the second position, one of the connecting parts is located in the positioning hole.

[0010] In some embodiments, the elastic component includes a clamping member and an elastic member, a receiving groove is recessed on the surface of the outer periphery of the positioning and mounting portion, the clamping member is located in the receiving groove, and the clamping member is partially exposed at the open end of the receiving groove, one end of the elastic member is fixed to the bottom of the receiving groove, and the other end of the elastic member is fixed to the clamping member.

[0011] In some embodiments, a protective layer is further provided on the end surface of the pressing member away from the elastic member, and the protective layer is in contact with the inner side wall of the first central hole;

[0012] There are a plurality of elastic components, which are evenly distributed around the outer edge of the positioning and mounting portion.

[0013] In some embodiments, the first positioning unit further comprises a second driving assembly and a second push plate located at one side of the second driving assembly, the second driving assembly is fixed to the first positioning mounting plate, an end surface of the second push plate away from the side where the second driving assembly is located is convexly provided with an abutment portion, a middle portion of the abutment portion comprises a second center hole extending along the axial direction of the assembly axis, and the second center hole is arranged through the second push plate;

[0014] The second push plate is sleeved on the assembly shaft through the second center hole, and the side where the abutment portion of the second push plate is located is arranged toward the side where the positioning and mounting portion is located;

[0015] The second driving assembly is used to push the second push plate to reciprocate between a third position and a fourth position along the axial direction of the assembly shaft; wherein, when the second push plate is located at the third position, the abutment portion is arranged away from the positioning installation portion; when the second push plate moves from the third position toward the second position, the abutment portion contacts the bearing core and forces the bearing core to disengage from the positioning installation portion.

[0016] In a second aspect, the present invention provides a bearing automatic assembly device, wherein the bearing comprises a bearing sleeve and a bearing core, and the bearing automatic assembly device comprises:

[0017] A positioning mechanism as described above;

[0018] A first driving mechanism, wherein the first driving mechanism comprises a first driving unit, wherein an output shaft of the first driving unit is detachably fixedly connected to the first positioning mounting plate, and the first driving unit drives the first positioning mounting plate to reciprocate in an up-and-down direction;

[0019] The first feeding mechanism is provided with a feeding trough, the feeding trough is located below the positioning and mounting portion, the feeding trough is used to feed the bearing sleeve, and one of the connecting portions is located above the bearing sleeve on the feeding trough.

[0020] In some embodiments, the first feeding mechanism further includes a first feeding unit, and the first feeding unit is used to transport the bearing sleeve;

[0021] The feeding trough comprises a gradient block and a bearing positioning die, one end of the gradient block is connected with the first feeding unit, the other end of the gradient block is connected with the bearing positioning die, the top of the gradient block has a gradient curved surface, the starting end of the gradient curved surface is horizontally arranged, the tail end of the gradient curved surface is inclined, the starting end of the gradient curved surface is arranged toward the side where the first feeding unit is located, and the tail end of the gradient curved surface is arranged away from the side where the first feeding unit is located, the top of the bearing positioning die has an inclined positioning surface, one end of the inclined positioning surface is connected with the tail end of the gradient curved surface, the top of the bearing positioning die is located at the lowest position of the inclined positioning surface and is also provided with a raised section, the bearing sleeve is transported to the inclined positioning surface through the gradient curved surface of the gradient block, and one side wall of the bearing sleeve abuts against the raised section;

[0022] When the main body is sleeved on the positioning and mounting portion through the first center hole, the bearing sleeve is located below one of the connecting portions.

[0023] In some embodiments, the inclination angle &1 of the inclined positioning surface is: 23°≤&1≤30°.

[0024] In some embodiments, the raised section has a stop surface, the stop surface is arranged toward the side where the inclined positioning surface is located, the stop surface is in contact with the inclined positioning surface, the connection between the stop surface and the inclined positioning surface is a smooth transition connection, and there is an angle &2 between the stop surface and the inclined positioning surface, and the value of the angle &2 is: 90°≤&2≤110°.

[0025] In some embodiments, the bearing automatic assembly device further includes a bracket and a second driving mechanism, the second driving mechanism is fixed on the bracket, and the second driving mechanism is located above the first positioning assembly, the second driving mechanism includes a first crimping unit and a second driving unit driving the first crimping unit to move in a vertical direction, the first crimping unit has a crimping piece, both sides of the bottom of the crimping piece extend downwardly to form a crimping portion, and the distance between the two crimping portions is greater than the thickness of the bearing core along the axial direction of the first center hole;

[0026] Along the axial direction of the assembly shaft, the positioning and mounting portion is sequentially divided into a first abutting section, a positioning and mounting section, and a second abutting section, and the bearing core is sleeved in the positioning and mounting section;

[0027] When the second driving unit drives the crimping member to move downward, the two crimping parts contact the first abutting section and the second abutting section respectively and force the assembly shaft to continue to move downward, so that one of the connecting parts extends into the bearing sleeve located on the feeding trough.

[0028] In order to solve the problem that the existing trident cannot achieve accurate positioning, the present invention has the following advantages:

[0029] Through the technical solution of the present invention, the bearing core can be positioned more tightly, and there is no need to design a more complicated structure for limiting the connection part of the bearing core. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram showing a structure in which a bearing is clamped on a positioning mechanism;

[0031] Figure 2 The structural schematic diagram of the bearing automatic assembly device is shown;

[0032] Figure 3 A structural schematic diagram showing another angle of the bearing automatic assembly device;

[0033] Figure 4 Shows Figure 3 The enlarged schematic diagram of the structure of the dotted circle A shown in FIG.

[0034] Figure numerals: 01-bearing core; 11-main body; 111-first center hole; 12-connecting part; 001-bearing sleeve; 02-positioning mechanism; 21-first positioning mounting plate; 22-first positioning assembly; 221-assembly shaft; 2211-positioning mounting part; 222-elastic assembly; 23-positioning block; 231-positioning hole; 24-rotating motor; 25-first positioning unit; 251-first driving assembly; 253-second driving assembly Component; 254-second push plate; 2541-abutment portion; 03-first drive unit; 04-first feeding mechanism; 41-loading trough; 411-gradient block; 4111-gradient curved surface; 412-bearing positioning mold; 4121-inclined positioning surface; 4122-raised section; 05-second drive mechanism; 51-first crimping unit; 52-second drive unit; 06-bracket; 07-bearing automatic assembly device; 08-second feeding mechanism. DETAILED DESCRIPTION

[0035] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0036] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0037] This embodiment discloses a positioning mechanism 02, such as Figure 1As shown, the positioning mechanism 02 includes a first positioning mounting plate 21, a first positioning assembly 22, a positioning block 23 and a rotating motor 24, wherein the rotating motor 24 is fixed on the first positioning mounting plate 21, the first positioning assembly 22 has an assembly shaft 221 and an elastic assembly 222, the rotating motor 24 drives the assembly shaft 221 to rotate at a fixed angle, the assembly shaft 221 has a positioning mounting portion 2211 on the side away from the rotating motor 24, the elastic assembly 222 is arranged on the outer peripheral side of the positioning mounting portion 2211, the positioning block 23 is movably connected to the first positioning mounting plate 21, the positioning block 23 moves along the axial direction of the assembly shaft 221 relative to the first positioning mounting plate 21, the other end of the positioning block 23 is extended along the axial direction of the assembly shaft 221 away from the side of the rotating motor 24, and the other end of the positioning block 23 is provided with a positioning hole 231;

[0038] The bearing core 01 includes a main body 11 and a plurality of connecting parts 12, wherein the middle portion of the main body 11 has a first central hole 111 extending along the axial direction of the assembly axis 221, and the plurality of connecting parts 12 are respectively connected to the outer side surface of the main body 11;

[0039] When the main body 11 is sleeved on the positioning and mounting portion 2211 through the first center hole 111, the end of the elastic component 222 away from the side where the assembly axis 221 is located abuts against the inner wall of the first center hole 111, and one of the connecting portions 12 is located in the positioning hole 231, and the connecting portion 12 and the positioning hole 231 are clearance-fitted.

[0040] In this embodiment, a positioning mechanism 02 is provided, and the positioning mechanism 02 is used to position the bearing core 01. Among them, a positioning hole 231 is provided on the positioning block 23 movably connected to the first positioning mounting plate 21, and when the bearing core 01 is slowly sleeved on the positioning mounting portion 2211 of the assembly shaft 221 through the first center hole 111 of the main body 11, one of the connecting parts 12 of the bearing core 01 slowly extends into the positioning hole 231 to achieve a clearance fit connection relationship between the connecting part 12 and the positioning hole 231, so that the bearing core 01 is sleeved on the positioning mounting portion 2211 according to a certain position relationship, thereby achieving the initial positioning of the position of the bearing core 01. At the same time, since an elastic component 222 is provided on the outer peripheral side of the positioning and mounting portion 2211, when the bearing core 01 is sleeved on the positioning and mounting portion 2211, the end of the elastic component 222 away from the side where the assembly axis 221 is located abuts against the inner wall of the first center hole 111, so as to realize the fastening and limiting of the bearing core 01 on the positioning and mounting portion 2211.

[0041] Through the above arrangement, when the bearing sleeve 001 is sleeved on the connection portion 12 of the bearing core 01 during the assembly process, the bearing core 01 is precisely positioned on the positioning and mounting portion 2211, which reduces the extrusion damage to the rollers assembled between the outer ring and the inner ring of the bearing sleeve 001, thereby improving the processing quality of the bearing. In the present application, the bearing can be a three-pronged ball ring having three connection portions 12.

[0042] In this embodiment, the assembly shaft 221 is fixed to the output shaft of the rotating motor 24 in the horizontal direction, and the output shaft of the rotating motor 24 is coaxially arranged with the assembly shaft 221, so that the rotating motor 24 drives the assembly shaft 221 to rotate at a fixed angle. In this application, the rotating motor 24 drives the assembly shaft 221 to rotate at a fixed angle of 120 degrees. After a bearing sleeve 001 is installed, the rotating motor 24 can be operated so that the rotating motor 24 drives the assembly shaft 221 to rotate at an angle of 120 degrees, so as to facilitate the assembly of the shaft 221 bearing sleeve 001 on the next connecting portion 12.

[0043] Furthermore, a first mounting block is fixed on the first positioning mounting plate 21, and the first mounting block is located at one end of the first positioning mounting plate 21, and the first mounting block is arranged upward in the vertical direction, and a first through hole is provided in the middle of the first mounting block, and the main body of the rotating motor 24 is fixed on the first mounting block, and the output shaft of the rotating motor 24 passes through the first through hole and is fixedly connected to the assembly shaft 221.

[0044] Furthermore, a second mounting block is fixed to the first positioning mounting plate 21. The second mounting block is located at the other end of the first positioning mounting plate 21 and is arranged in alignment with the first mounting block. A second through hole is provided in the middle of the second mounting block. A ball bearing is sleeved in the second through hole. The other end of the assembly shaft 221 extends outward through the ball bearing. The positioning mounting portion 2211 is located at the end where the other end of the assembly shaft 221 is located. The assembly shaft 221 is rotatably arranged on the first positioning mounting plate 21 in the horizontal direction, so that the rotating motor 24 can drive the assembly shaft 221 to rotate.

[0045] In some embodiments, the positioning mechanism 02 further includes a first positioning unit 25, the first positioning unit 25 further includes a first driving component 251 and a first push plate located on one side of the first driving component 251, the first driving component 251 is fixed on the first positioning mounting plate 21, the positioning block 23 is fixed on the first push plate, and one end of the positioning block 23 on the side where the positioning hole 231 is located is arranged away from the first driving component 251;

[0046] The first driving component 251 is used to push the first push plate to reciprocate between the first position and the second position along the axial direction of the assembly shaft 221; wherein, when the first push plate is located at the first position, one end of the positioning block 23 located on the side where the positioning hole 231 is located is arranged away from the bearing core 01; when the first push plate is located at the second position, one of the connecting parts 12 is located in the positioning hole 231.

[0047] In this embodiment, the first drive assembly 251 can be a pneumatic cylinder or an electric cylinder. The main body of the first drive assembly 251 is detachably fixed on the first positioning mounting plate 21. The output shaft of the first drive assembly 251 is extended in the horizontal direction and is coaxially arranged with the assembly shaft 221, and the end of the output shaft of the first drive assembly 251 is arranged toward the side where the positioning mounting portion 2211 is located. In the present application, the second mounting block is located below the second through hole and is also provided with a guide hole. One end of the positioning block 23 is detachably fixed to the first push plate through the guide hole, so that the first drive assembly 251 pushes the first push plate to reciprocate between the first position and the second position on the first positioning mounting plate 21, thereby driving the positioning hole 231 of the positioning block 23 to approach or move away from one of the connecting parts 12 of the bearing core 01 assembled on the positioning mounting portion 2211, so as to flexibly assist the positioning mounting portion 2211 to accurately position the bearing core 01.

[0048] In this embodiment, through the above-mentioned arrangement, when it is necessary to accurately sleeve the bearing core 01 on the positioning and mounting portion 2211 of the assembly shaft 221, the first driving component 251 can be driven so that the output shaft of the first driving component 251 pushes the first push plate to move from the first position to the second position, so that the end of the positioning block 23 on the side where the positioning hole 231 is located moves to the bottom of the positioning and mounting portion 2211. The first center hole 111 of the bearing core 01 can be manually aligned with the positioning and mounting portion 2211 of the assembly shaft 221, and one of the connecting portions 12 of the bearing core 01 is aligned with the positioning hole 231 of the positioning block 23, and then the bearing core 01 is pushed to move along the axial direction of the assembly shaft 221 toward the side where the positioning and mounting portion 2211 is located, so that the first center hole 111 of the bearing core 01 is forced to be sleeved on the positioning and mounting portion 2211, and the connecting portion 12 is located in the positioning hole 231, or the bearing core 01 is aligned with the above-mentioned structure and installed on the positioning and mounting portion 2211 by means of a robotic arm or the like. In the present application, the gap between the connecting portion 12 and the inner wall of the positioning hole 231 is preferably less than or equal to 0.2 cm.

[0049] In this embodiment, after the precise installation of the bearing core 01 is completed, the first driving component 251 can be driven so that the output shaft of the first driving component 251 pushes the first push plate to move from the second position to the first position, forcing the mounting hole of the positioning block 23 to be set away from the connecting portion 12 of the bearing core 01, so as to facilitate the subsequent assembly of the bearing sleeve 001.

[0050] In some embodiments, the elastic component 222 includes a clamping member and an elastic member, a surface on the outer periphery of the positioning and mounting portion 2211 is recessed with a receiving groove, the clamping member is located in the receiving groove, and the clamping member is partially exposed at the open end of the receiving groove, one end of the elastic member is fixed to the bottom of the receiving groove, and the other end of the elastic member is fixed to the clamping member.

[0051] Furthermore, a protective layer is provided on the end surface of the pressing member away from the elastic member, and the protective layer is in contact with the inner side wall of the first central hole 111;

[0052] There are multiple elastic components 222 , which are evenly distributed around the outer edge of the positioning and mounting portion 2211 .

[0053] In this embodiment, the present application preferably provides three receiving grooves, each of which is symmetrically arranged at intervals along the outer circumference of the positioning and mounting portion 2211, so that each group of elastic components 222 is symmetrically fixed in each receiving groove.

[0054] Through the above arrangement, during the installation of the bearing core 01, the force applied to each clamping member by at least part of the inner circumference of the inner side wall of the first center hole 111 of the bearing core 01 will drive the elastic member to move inward, thereby putting the elastic member in a compressed state. Furthermore, the elastic member can apply a reaction force to the clamping member, so that the protective layer on the clamping member abuts against the inner side wall of the first center hole 111, so as to squeeze the inner wall of the bearing core 01 and achieve precise positioning of the bearing core 01. In the present application, the accommodating grooves can also be set to two, three, five or more than six, and the present application is not limited thereto. Among them, the elastic member can be an elastic ball or a compression spring.

[0055] In this embodiment, through the above-mentioned structural setting, the three accommodating grooves are evenly distributed on the positioning and mounting portion 2211 along the outer edge of the assembly shaft 221. When the bearing core 01 is sleeved on the positioning and mounting portion 2211 through the first center hole 111, the force (i.e., the force) applied to each pressing member is more evenly distributed, further realizing the precise positioning of the bearing core 01.

[0056] In this embodiment, the three pressing members are of the same shape and size, so as to facilitate rapid processing and reduce the manufacturing cost of the elastic member. In the present application, the accommodating groove is preferably a rectangular groove.

[0057] In some embodiments, the first positioning unit 25 further comprises a second driving assembly 253 and a second push plate 254 located at one side of the second driving assembly 253, the second driving assembly 253 is fixed on the first positioning mounting plate 21, an end surface of the second push plate 254 away from the side where the second driving assembly 253 is located is convexly provided with an abutment portion 2541, the middle portion of the abutment portion 2541 has a second center hole extending along the axial direction of the assembly shaft 221, and the second center hole is set through the second push plate 254;

[0058] The second push plate 254 is sleeved on the assembly shaft 221 through the second center hole, and the side where the abutment portion 2541 of the second push plate 254 is located is arranged toward the side where the positioning and mounting portion 2211 is located;

[0059] The second driving component 253 is used to push the second push plate 254 to reciprocate between the third position and the fourth position along the axial direction of the assembly shaft 221; wherein, when the second push plate 254 is located at the third position, the abutment portion 2541 is arranged away from the positioning and mounting portion 2211; when the second push plate 254 moves from the third position toward the second position, the abutment portion 2541 contacts the bearing core 01 and forces the bearing core 01 to disengage from the positioning and mounting portion 2211.

[0060] In this embodiment, the second drive assembly 253 can be a cylinder or an electric cylinder. The body of the second drive assembly 253 is fixed on the second mounting block. The body of the second drive assembly 253 and the first drive assembly 251 are located on the same side of the second mounting block. The second mounting block is also penetrated by a third through hole. The output shaft of the second drive assembly 253 passes through the through hole and is fixedly connected to the second push plate 254. The end surface of the second push plate 254 away from the side where the second drive assembly 253 is located is convexly provided with an abutment portion 2541. The middle part of the second push plate 254 has a second center hole extending along the axial direction of the assembly shaft 221. The second center hole is set through the middle part of the abutment portion 2541. The second push plate 254 is sleeved on the assembly shaft 221 through the second center hole and is set close to the side where the positioning mounting portion 2211 is located.

[0061] In this embodiment, through the above arrangement, after the bearing is assembled, the second driving assembly 253 can be driven so that the output shaft of the second driving assembly 253 pushes the second push plate 254 to move from the third position to the fourth position, so that the abutment portion 2541 moves toward the side where the bearing core 01 is located and contacts the bearing core 01, and forces the bearing core 01 to pass through the first center hole 111 and detach from the positioning and mounting portion 2211, so as to reduce the time for manually disassembling the bearing from the positioning and mounting portion 2211, so as to further improve the assembly efficiency. When the second push plate 254 is located at the third position, the abutment portion 2541 of the second push plate 254 is arranged away from the side where the positioning and mounting portion 2211 is located, so as to reduce the impact on the assembly of the bearing sleeve 001.

[0062] On the other hand, this embodiment also discloses a bearing automatic assembly device 07, such as Figures 2 to 4 As shown, the bearing automatic assembly device 07 includes the above-mentioned positioning mechanism 02, the first driving mechanism and the first feeding mechanism 04. The first driving mechanism has a first driving unit 03, the output shaft of the first driving unit 03 is detachably fixedly connected to the first positioning mounting plate 21, and the first driving unit 03 drives the first positioning mounting plate 21 to reciprocate in the up and down directions;

[0063] The first feeding mechanism 04 is provided with a feeding trough 41 , which is located below the positioning and mounting portion 2211 . The feeding trough 41 is used to feed the bearing sleeve 001 , and one of the connecting portions 12 is located above the bearing sleeve 001 on the feeding trough 41 .

[0064] In this embodiment, in order to reduce the time spent by humans in the assembly process, the bearing can also be positioned and assembled by the bearing automatic assembly device 07 to improve the assembly efficiency. In this application, the bearing includes a bearing sleeve 001 and a bearing core 01.

[0065] Furthermore, the bearing automatic assembly device 07 has a bracket 06, the first drive unit 03 can be a cylinder or an electric cylinder, the first drive unit 03 is located below the positioning mechanism 02, and the main body 11 of the first drive unit 03 is fixed on the bracket 06, the output shaft of the first drive unit 03 is detachably fixed on the first positioning mounting plate 21 in the vertical direction, the first drive unit 03 can drive the first positioning mounting plate 21 to reciprocate in the up and down directions, and then drive the positioning mechanism 02 that has positioned the bearing core 01 to move downward in the vertical direction, so as to extend one of the connecting parts 12 of the bearing core 01 into the bearing sleeve 001 located on the loading trough 41, so as to realize automatic assembly between the bearing sleeve 001 and the connecting part 12 of the bearing core 01.

[0066] In this embodiment, the first feeding mechanism 04 delivers a plurality of bearing sleeves 001 to the loading trough 41 one by one, so that the first bearing sleeve 001 delivered to the loading trough 41 is located below one of the connecting parts 12. After the positioning and mounting part 2211 of the positioning mechanism 02 accurately assembles the bearing core 01, the first driving unit 03 can be driven to force the bearing core 01 to move downward in the vertical direction, so as to extend one of the connecting parts 12 of the bearing core 01 into the bearing sleeve 001 located on the loading trough 41, thereby completing the assembly of the bearing.

[0067] In some embodiments, the first feeding mechanism 04 also includes a first feeding unit, and the first feeding unit is used to transport the bearing sleeve 001; in the present application, the first feeding unit is a conventional conveying mechanism and will not be described in detail.

[0068] The feeding trough 41 includes a gradient block 411 and a bearing positioning mold 412, one end of the gradient block 411 is connected to the first feeding unit, and the other end of the gradient block 411 is connected to the bearing positioning mold 412, the top of the gradient block 411 has a gradient curved surface 4111, the starting end of the gradient curved surface 4111 is horizontally arranged, the tail end of the gradient curved surface 4111 is inclined, the starting end of the gradient curved surface 4111 is arranged toward the side where the first feeding unit is located, and the tail end of the gradient curved surface 4111 is inclined. The bearing positioning mold 412 is arranged at a side away from the first feeding unit, and has an inclined positioning surface 4121 at the top, one end of which is connected to the rear end of the gradual curved surface 4111, and a raised section 4122 is also arranged at the lowest position on the inclined positioning surface 4121 at the top of the bearing positioning mold 412, and the bearing sleeve 001 is transported to the inclined positioning surface 4121 through the gradual curved surface 4111 of the gradual block 411, and a side wall of the bearing sleeve 001 abuts against the raised section 4122;

[0069] When the main body 11 is sleeved on the positioning and mounting portion 2211 through the first center hole 111 , the bearing sleeve 001 is located below one of the connecting portions 12 .

[0070] Furthermore, the inclination angle &1 of the inclined positioning surface 4121 is 23°≤&1≤30°, and the preferred value in this application is 28°.

[0071] Furthermore, the raised section 4122 has a stop surface, which is arranged toward the side where the inclined positioning surface 4121 is located, and the stop surface is in contact with the inclined positioning surface 4121. The connection between the stop surface and the inclined positioning surface 4121 is a smooth transition connection, and there is an angle &2 between the stop surface and the inclined positioning surface 4121. The value of the angle &2 is: 90°≤&2≤110°, and the preferred angle in this application is 96°.

[0072] In this embodiment, through the above-mentioned structural arrangement, when the first driving unit 03 drives the first positioning mounting plate 21 to move downward in the vertical direction, the assembly shaft 221 on which the bearing core 01 is installed is driven to move downward in the vertical direction, so that a connecting portion 12 located below the bearing core 01 contacts and extends into the first bearing sleeve 001 transported to the loading trough 41; after the assembly of the first bearing sleeve 001 is completed, the first positioning mounting plate 21 can be driven to move upward in the vertical direction by the first driving unit 03, and the first driving unit 03 is stopped after moving to the predetermined position, and the rotating motor 24 is driven at the same time, so that the bearing core 01 The second connection part 12 rotates to the bottom of the bearing core 01. At this time, the first feeding mechanism 04 transports the second bearing sleeve 001 to the loading trough 41, and the second bearing sleeve 001 is located below the second connection part 12. Then, by driving the first driving unit 03, the first positioning mounting plate 21 is driven to move downward in the vertical direction to complete the assembly of the second connection part 12 of the bearing core 01 and the second bearing sleeve 001; further, continue to repeat the above steps to complete the assembly of the third connection part 12 of the bearing core 01 and the third bearing sleeve 001, thereby completing the automatic assembly of the bearing and improving assembly efficiency.

[0073] In this embodiment, the structural setting of the gradient block 411 enables the bearing sleeve 001 to be assembled to be transported to the gradient surface 4111, and the bearing sleeve 001 can automatically move along the gradient surface 4111 to the inclined positioning surface 4121 under the action of gravity, and be located below the positioning and mounting portion 2211 of the assembly shaft 221, thereby realizing non-powered automatic loading of the bearing sleeve 001, which is energy-saving and environmentally friendly.

[0074] Furthermore, in the bearing positioning mold 412, the inclination angle &1 of the inclined positioning surface 4121 is: 23°≤&1≤30°, the angle &2 between the stop surface and the inclined positioning surface 4121 is: 90°≤&2≤110°, and the connection between the stop surface and the inclined positioning surface 4121 is a smooth transition connection. Through the above arrangement, when the first driving unit 03 drives the first positioning mounting plate 21 to move downward in the vertical direction, the assembly shaft 221 on which the bearing core 01 is installed is driven to move downward in the vertical direction, so that when a connecting portion 12 located below the bearing core 01 contacts the bearing sleeve 001 located in the loading trough 41, the bearing sleeve 001 can be made to make two-point contact when the connecting portion 12 of the bearing core 01 contacts the inner ring of the bearing sleeve 001 through the setting of the inclined positioning surface 4121 on the bearing positioning mold 412, and at the same time, a vertical downward force is applied to the bearing sleeve 001, and then through the setting of the stop surface on the bearing positioning mold 412, the vertical downward force drives the bearing sleeve 001 to adjust its position through the stop surface, so that the connecting portion 12 of the bearing core 01 can accurately extend into the inner ring of the bearing sleeve 001, and the automatic assembly of the bearing is completed; at the same time, through the above structural setting, the damage to the roller between the outer ring and the inner ring of the bearing sleeve 001 can be reduced, and the processing quality of the bearing can be improved.

[0075] In some embodiments, the bearing automatic assembly device 07 further includes a bracket 06 and a second driving mechanism 05, wherein the second driving mechanism 05 is fixed on the bracket 06 and is located above the first positioning assembly 22, and the second driving mechanism 05 includes a first crimping unit 51 and a second driving unit 52 that drives the first crimping unit 51 to move in a vertical direction, wherein the first crimping unit 51 has a crimping piece, and both sides of the bottom of the crimping piece extend downwardly with a crimping portion, and the distance between the two crimping portions is greater than the thickness of the bearing core 01 along the axial direction of the first center hole 111;

[0076] Along the axial direction of the assembly shaft 221, the positioning and mounting portion 2211 is sequentially divided into a first abutting section, a positioning and mounting section, and a second abutting section, and the bearing core 01 is sleeved on the positioning and mounting section;

[0077] When the second driving unit 52 drives the crimping part to move downward, the two crimping parts contact the first abutment section and the second abutment section respectively and force the assembly shaft 221 to continue to move downward, so that one of the connecting parts 12 extends into the bearing sleeve 001 located on the loading trough 41.

[0078] In this embodiment, through the above-mentioned setting, the second driving unit 52 can drive the crimping piece to move downward, so that the two crimping parts of the crimping piece contact the first abutment section and the second abutment section respectively, and force the assembly shaft 221 to continue to move downward, so as to assist the first driving unit 03 to complete the assembly between the connecting part 12 of the bearing core 01 and the bearing sleeve 001, thereby improving work efficiency.

[0079] Furthermore, the bearing automatic assembly device 07 also includes a second feeding mechanism 08, which has a second feeding unit and a transfer unit. The second feeding unit is used to transport the bearing core 01, and the second feeding unit has a feeding port to transport multiple bearing cores 01 one by one to the feeding port.

[0080] Furthermore, the bearing automatic assembly device 07 also includes a transmission mechanism, which includes a pushing unit and a transmission unit. The pushing unit is arranged at the feeding port, and the pushing unit has a first cylinder and a sleeve. The first cylinder is fixed on the bracket 06, and the output shaft of the first cylinder is fixedly connected to one end of the sleeve, and the other end of the sleeve is extended on one side of the bearing core 01 at the feeding port.

[0081] Furthermore, the transmission unit has a second cylinder, a second fixed mounting plate, a second positioning assembly and a second positioning unit, wherein the structure of the second positioning assembly is arranged in the same manner as the structure of the first positioning assembly 22, and the structure of the second positioning unit is arranged in the same manner as the second driving assembly 253 and the second push plate 254 of the first positioning unit 25. In the present application, the second cylinder is fixed on the second feeding mechanism 08, the second fixed mounting plate is movably arranged on the second feeding mechanism 08, and the output shaft of the second cylinder is fixedly connected to the second fixed mounting plate, the second cylinder pushes the second fixed mounting plate to move close to or away from the positioning mounting portion 2211 of the assembly shaft 221 of the first positioning assembly 22, the assembly shaft 221 of the second positioning assembly is fixedly mounted on the second fixed mounting plate, and the other end of the assembly shaft 221 of the second positioning assembly is extended toward the other side of the bearing core 01 located at the feeding port, and the assembly shaft 221 of the second positioning assembly is arranged in alignment with the sleeve. The second driving assembly 253 of the second positioning unit is fixed on the second fixed mounting plate, and the second pushing plate 254 of the second positioning unit is sleeved on the assembly shaft 221 of the second positioning assembly through the second center hole.

[0082] In this embodiment, through the arrangement of the above-mentioned structure, the sleeve can be driven by the first cylinder to move toward the side where the bearing core 01 is located at the feed port, and continue to move against the main body of the bearing core 01, so as to force the bearing core 01 to pass through the first center hole 111 and be sleeved on the positioning installation portion 2211 of the assembly shaft 221 of the second positioning component. After the bearing core 01 is assembled on the positioning installation portion 2211 of the assembly shaft 221 of the second positioning component, the sleeve can be driven by the first cylinder to reset, and at this time, the second cylinder can be driven to push the second fixed installation plate toward the side where the positioning mechanism 02 is located, so that the bearing core 01 is assembled After the second positioning component of the core 01 moves to the position of the first positioning component 22 and stops moving, the assembly axis 221 of the second positioning component is axially aligned with the assembly axis 221 of the first positioning component 22. At this time, the second driving component 253 of the second positioning unit is driven to push the second push plate 254 to force the bearing core 01 installed on the positioning mounting part 2211 of the second positioning component to be separated from the assembly axis 221. At the same time, the bearing core 01 is forced to be mounted on the positioning mounting part 2211 of the first positioning component 22 through the first center hole 111. The automatic assembly of the bearing core 01 is completed, thereby improving the assembly efficiency.

[0083] In this embodiment, the bearing automatic assembly device 07 also includes a discharge conveyor belt, which is arranged around the first feeding mechanism 04 and is arranged near the side where the loading trough 41 is located. In this application, after the three connecting parts 12 of the bearing core 01 are all assembled with a bearing sleeve 001, the second driving component 253 of the first positioning unit 25 can be driven to push the second push plate 254, so that the abutment part 2541 of the second push plate 254 contacts the bearing core 01 assembled with the bearing sleeve 001 and forces the bearing core 01 to break away from the positioning and mounting part 2211, so that it falls onto the discharge conveyor belt and is then sent to the area to be installed by the discharge conveyor belt.

[0084] In summary, the above-mentioned structural arrangement can realize a relatively tight positioning of the bearing core, and there is no need to design a relatively complicated structure for limiting the connection portion of the bearing core.

[0085] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0086] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that those skilled in the art can understand.

Claims

1. A positioning mechanism for positioning a bearing core, characterized in that: The positioning mechanism comprises a first positioning mounting plate, a first positioning assembly, a positioning block and a rotating motor, wherein the rotating motor is fixed to the first positioning mounting plate, the first positioning assembly comprises an assembly shaft and an elastic assembly, the rotating motor drives the assembly shaft to rotate at a fixed angle, the assembly shaft has a positioning mounting portion on the side away from the rotating motor, the elastic assembly is arranged on the outer peripheral side of the positioning mounting portion, the positioning block is movably connected to the first positioning mounting plate, the positioning block moves along the axial direction of the assembly shaft relative to the first positioning mounting plate, the other end of the positioning block is extended along the axial direction of the assembly shaft away from the side where the rotating motor is, and the other end of the positioning block is provided with a positioning hole; The bearing core comprises a main body and a plurality of connecting parts, wherein the middle part of the main body has a first central hole extending along the axial direction of the assembly axis, and the plurality of connecting parts are respectively connected to the outer side surface of the main body; When the main body is sleeved on the positioning and mounting portion through the first center hole, one end of the elastic component away from the assembly axis abuts against the inner wall of the first center hole, and one of the connecting parts is located in the positioning hole, and the connecting part and the positioning hole are clearance-fitted.

2. The positioning mechanism according to claim 1, characterized in that: The positioning mechanism further includes a first positioning unit, the first positioning unit further includes a first driving assembly and a first push plate located on one side of the first driving assembly, the first driving assembly is fixed to the first positioning mounting plate, the positioning block is fixed to the first push plate, and one end of the positioning block on the side where the positioning hole is located is arranged away from the first driving assembly; The first driving assembly is used to push the first push plate to reciprocate between a first position and a second position along the axial direction of the assembly shaft; wherein, when the first push plate is located at the first position, one end of the positioning block located on the side where the positioning hole is located is arranged away from the bearing core; when the first push plate is located at the second position, one of the connecting parts is located in the positioning hole.

3. The positioning mechanism according to claim 1, characterized in that: The elastic component includes a clamping member and an elastic member. A receiving groove is recessed on the surface of the outer periphery of the positioning and mounting portion. The clamping member is located in the receiving groove, and the clamping member is partially exposed at the open end of the receiving groove. One end of the elastic member is fixed to the bottom of the receiving groove, and the other end of the elastic member is fixed to the clamping member.

4. The positioning mechanism according to claim 3, characterized in that: The end surface of the pressing member away from the elastic member is also provided with a protective layer, and the protective layer is in contact with the inner side wall of the first central hole; There are a plurality of elastic components, which are evenly distributed around the outer edge of the positioning and mounting portion.

5. The positioning mechanism according to claim 2, characterized in that: The first positioning unit further comprises a second driving assembly and a second push plate located at one side of the second driving assembly, the second driving assembly is fixed to the first positioning mounting plate, an end surface of the second push plate away from the side where the second driving assembly is located is convexly provided with an abutment portion, a middle portion of the abutment portion comprises a second center hole extending along the axial direction of the assembly axis, and the second center hole is arranged through the second push plate; The second push plate is sleeved on the assembly shaft through the second center hole, and the side where the abutment portion of the second push plate is located is arranged toward the side where the positioning and mounting portion is located; The second driving assembly is used to push the second push plate to reciprocate between a third position and a fourth position along the axial direction of the assembly shaft; wherein, when the second push plate is located at the third position, the abutment portion is arranged away from the positioning installation portion; when the second push plate moves from the third position toward the second position, the abutment portion contacts the bearing core and forces the bearing core to disengage from the positioning installation portion.

6. A bearing automatic assembly device, the bearing comprising a bearing sleeve and a bearing core, characterized in that: include: The positioning mechanism according to any one of claims 1 to 5; A first driving mechanism, wherein the first driving mechanism comprises a first driving unit, wherein an output shaft of the first driving unit is detachably fixedly connected to the first positioning mounting plate, and the first driving unit drives the first positioning mounting plate to reciprocate in an up-and-down direction; The first feeding mechanism is provided with a feeding trough, the feeding trough is located below the positioning and mounting portion, the feeding trough is used to feed the bearing sleeve, and one of the connecting portions is located above the bearing sleeve on the feeding trough.

7. The automatic bearing assembly device according to claim 6, characterized in that: The first feeding mechanism further includes a first feeding unit, and the first feeding unit is used to transport the bearing sleeve; The feeding trough comprises a gradient block and a bearing positioning die, one end of the gradient block is connected with the first feeding unit, the other end of the gradient block is connected with the bearing positioning die, the top of the gradient block has a gradient curved surface, the starting end of the gradient curved surface is horizontally arranged, the tail end of the gradient curved surface is inclined, the starting end of the gradient curved surface is arranged toward the side where the first feeding unit is located, and the tail end of the gradient curved surface is arranged away from the side where the first feeding unit is located, the top of the bearing positioning die has an inclined positioning surface, one end of the inclined positioning surface is connected with the tail end of the gradient curved surface, the top of the bearing positioning die is located at the lowest position of the inclined positioning surface and is also provided with a raised section, the bearing sleeve is transported to the inclined positioning surface through the gradient curved surface of the gradient block, and one side wall of the bearing sleeve abuts against the raised section; When the main body is sleeved on the positioning and mounting portion through the first center hole, the bearing sleeve is located below one of the connecting portions.

8. The automatic bearing assembly device according to claim 7, characterized in that: The inclination angle &1 of the inclined positioning surface is: 23°≤&1≤30°.

9. The automatic bearing assembly device according to claim 7, characterized in that: The raised section has a stop surface, which is arranged toward the side where the inclined positioning surface is located. The stop surface is in contact with the inclined positioning surface, and the connection between the stop surface and the inclined positioning surface is a smooth transition connection. An angle &2 is formed between the stop surface and the inclined positioning surface, and the value of the angle &2 is: 90°≤&2≤110°.

10. The automatic bearing assembly device according to claim 6, characterized in that: The bearing automatic assembly device also includes a bracket and a second driving mechanism, the second driving mechanism is fixed on the bracket, and the second driving mechanism is located above the first positioning assembly, the second driving mechanism includes a first crimping unit and a second driving unit driving the first crimping unit to move in a vertical direction, the first crimping unit has a crimping piece, both sides of the bottom of the crimping piece extend downwardly to form a crimping portion, and the distance between the two crimping portions is greater than the thickness of the bearing core along the axial direction of the first center hole; Along the axial direction of the assembly shaft, the positioning and mounting portion is sequentially divided into a first abutting section, a positioning and mounting section, and a second abutting section, and the bearing core is sleeved in the positioning and mounting section; When the second driving unit drives the crimping member to move downward, the two crimping parts contact the first abutment section and the second abutment section respectively and force the assembly shaft to continue to move downward, so that one of the connecting parts extends into the bearing sleeve located on the feeding trough.

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