A bearing assembly for an electric actuator

Abstract

The utility model discloses a bearing assembly device of electric actuator relates to assembly device technical field, and bearing assembly device includes the material tray, transfer mechanism and press respectively arranged at the top of main frame, and transfer mechanism extends along the first horizontal direction, and one end below is equipped with the material tray, and the other end below is equipped with the press, and the drive end of transfer mechanism is equipped with the clamping mechanism, and the stamping end of press is connected with the pressure head mechanism, and the workstation of press is vertically equipped with the supporting mechanism, and the supporting mechanism includes the upper cover support subassembly and bearing support subassembly, and the upper cover support subassembly vertically slidably sets up on the press, and the first elastic piece is vertically equipped between the upper cover support subassembly and press. The utility model discloses through the cooperation of transfer mechanism, press, clamping mechanism, pressure head mechanism and supporting mechanism, assembles the bearing on the upper cover, effectively reduces the time and cost of manual operation, and improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of assembly device technology, specifically to a bearing assembly device for an electric actuator. Background Technology

[0002] Chinese Patent CN209638493U discloses an electric actuator with a surface-mount tactile switch. This electric actuator includes a housing, a gear reduction assembly disposed within the housing, and a motor. The gear reduction assembly includes meshing sector gears and double-layer gears. In the prior art, the shaft of the sector gear is connected to the housing via bearings.

[0003] Currently, there is an electric actuator on the market that includes a housing and a sector gear 93. For details, please refer to [link / reference needed]. Figure 1 As shown, the housing comprises an upper cover 91 and a lower cover that are fastened together. The shaft of the sector gear 93 is vertically disposed inside the housing. The upper end of the shaft of the sector gear 93 is connected to the upper cover 91 via a bearing 92, and the upper end of the shaft of the sector gear 93 extends upward to the outside of the upper cover 91 and is connected to a connecting rod 95.

[0004] The assembly steps between the sector gear 93 and the upper cover 91 are as follows: assemble the bearing 92 onto the upper cover 91 to obtain an intermediate part; and install the intermediate part onto the rotating shaft of the sector gear 93.

[0005] Currently, bearing assembly is done manually, which is inefficient. Furthermore, the quality of bearing installation directly affects the accuracy, lifespan, and performance of the electric actuator. Utility Model Content

[0006] This utility model proposes a bearing assembly device for an electric actuator to solve the problem of low work efficiency in manual bearing assembly.

[0007] The present invention discloses a bearing assembly device for an electric actuator, comprising a material tray, a transfer mechanism and a press respectively disposed on the top of the main frame; The transfer mechanism extends along a first horizontal direction, with the material tray located below one end and the press located below the other end; the drive end of the transfer mechanism is equipped with a clamping mechanism. The top of the material tray is provided with a first temporary slot for receiving the top cover; The pressing end of the press is connected to the pressing head mechanism via a connecting plate; a support mechanism is vertically provided on the worktable of the press, and the support mechanism is distributed below the pressing head mechanism; the support mechanism includes an upper cover support assembly and a bearing support assembly; The upper cover support assembly is vertically and slidably mounted on the press, and a first elastic element is vertically provided between the upper cover support assembly and the press; an upper cover positioning groove is provided on the top of the upper cover support assembly; the bearing support assembly is distributed in the upper cover positioning groove, and a bearing positioning groove is provided on the top of the bearing support assembly. The control mechanism mounted on the main frame is adapted to drive the transfer mechanism to transfer the top cover to the material tray or the top cover support assembly when the clamping mechanism holds the top cover. Through the cooperation of the transfer mechanism, press, clamping mechanism, pressing head mechanism, and support mechanism, the bearing is assembled onto the top cover, effectively reducing the time and cost of manual operation and improving work efficiency.

[0008] Optionally, the pressure head mechanism includes the connecting plate, the bearing pressure head, and the abutment rod; The top of the connecting plate is connected to the stamping end of the press; the bearing pressure head and the abutment rod are spaced apart and are respectively vertically arranged at the bottom of the connecting plate; The bearing pressure head is distributed opposite to the bearing positioning groove, and is suitable for abutting against the top surface of the upper cover; The abutment rod is adapted to abut against the top outer edge of the cover support assembly.

[0009] Optionally, the upper cover support assembly includes, from top to bottom, an abutment positioning plate, an upper cover support plate, a column, and a base plate; The base plate is mounted on the press; The bearing support assembly and the column are spaced apart and are respectively vertically installed on the top of the base plate; The upper cover support plate is slidably mounted on the column, and the upper end of the column is provided with an anti-loosening bolt; the top of the upper cover support plate is provided with a positioning hole, which is adapted to cooperate with the positioning post on the edge of the inner cavity of the upper cover. The abutting positioning plate is fixed to the top of the upper cover support plate; the inner sidewall of the abutting positioning plate and the top surface of the upper cover support plate form the upper cover positioning groove. The first elastic element is sleeved on the column, and its two ends abut against the upper cover support plate and the bottom plate, respectively.

[0010] Optionally, the bearing support assembly includes a bearing support rod, a bearing positioning sleeve, and a second elastic element; The bearing support rod is set vertically, and its lower end is set on the worktable of the press; The bearing positioning sleeve is fitted onto the upper end of the bearing support rod; The second elastic element is sleeved on the bearing support rod and positioned below the bearing positioning sleeve. The two ends of the second elastic element abut against the bearing support rod and the bearing positioning sleeve, respectively. The inner hole at the upper end of the bearing positioning sleeve and the top surface of the bearing support rod form the bearing positioning groove. By adopting the above solution and setting up a bearing support assembly, the assembly difficulty between the bearing and the upper cover is reduced.

[0011] Optionally, the lower end of the bearing positioning sleeve is provided with a limiting pin, which extends in the horizontal direction; The bearing support rod has a limiting groove that mates with the limiting pin; the limiting groove extends vertically. This design prevents the bearing positioning sleeve from detaching from the bearing support rod.

[0012] Optionally, the transfer mechanism includes a gantry, a first drive module, and a second drive module; The gantry frame is mounted on top of the main frame, and the top crossbeam of the gantry frame extends along the first horizontal direction; the material pallet and the press are distributed at both ends of the top crossbeam of the gantry frame. The first drive module extends along the first horizontal direction, its fixed end is connected to the top crossbeam of the gantry, and its drive end is connected to the fixed end of the second drive module through an adapter frame. The second drive module extends vertically, with its upper end being a fixed end and its lower end being a drive end; the drive end of the second drive module is connected to the clamping mechanism via a mounting base.

[0013] Optionally, the clamping mechanism includes a mounting base, pneumatic fingers, and a positioning rod; The mounting base is disposed at the drive end of the transfer mechanism; The pneumatic finger is positioned below the mounting base; the fixed end of the pneumatic finger is connected to the mounting base, and the driving end of the pneumatic finger is provided with a slot, which is adapted to engage with the protrusion on the lower edge of the upper cover. The positioning rod is vertically and slidably mounted on the mounting base, suitable for insertion into the bearing mounting hole of the upper cover, or into the inner ring of the bearing; A third elastic element is provided between the positioning rod and the mounting base, with both ends of the third elastic element abutting against the positioning rod and the mounting base, respectively. By employing this solution and setting a floating positioning rod, the assembly difficulty between the upper end of the sector gear shaft and the inner ring of the bearing is reduced.

[0014] Optionally, the outer periphery of the positioning rod is provided with an abutting flange and a limiting flange; The abutting protrusion is positioned below the third elastic member and abuts against the third elastic member; The limiting protrusion is positioned above the mounting base.

[0015] Optionally, the top of the material tray is provided with the first temporary storage slot and the second temporary storage slot spaced apart; The first temporary storage slot and the second temporary storage slot are distributed extending in the first horizontal direction; The second temporary storage slot is used to accommodate the top cover on which the bearing is installed.

[0016] Optionally, the material pallet is connected to the main frame via a multi-station turntable; The multi-station turntable includes a turntable body and a rotation drive module; The turntable body is mounted on top of the main frame via the rotation drive module; The material tray is detachably mounted on the turntable body.

[0017] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: By coordinating the transfer mechanism, press, clamping mechanism, pressure head mechanism and support mechanism, the bearing is assembled on the top cover, which effectively reduces the time and cost of manual operation and improves work efficiency. By setting a floating positioning rod, the assembly difficulty between the upper end of the sector gear shaft and the inner ring of the bearing is reduced. By setting up a bearing support assembly, the assembly difficulty between the bearing and the top cover is reduced; By setting up multi-station turntables, material pallets can be transferred, improving work efficiency.

[0018] The above description of the disclosed content and the following description of the embodiments are intended to demonstrate and explain the spirit and principle of the present invention, and to provide a further explanation of the scope of the patent application of the present invention. Attached Figure Description

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0020] Figure 1 This is an exploded view of the upper cover assembly in this utility model; Figure 2 This is a top view (a) of the bearing assembly device in this utility model; Figure 3 This is a three-dimensional schematic diagram of the bearing assembly device in this utility model; Figure 4 This is a schematic diagram of the material tray in this utility model; Figure 5 This is a schematic diagram of the clamping mechanism in this utility model; Figure 6This is a partial cross-sectional schematic diagram of the clamping mechanism in this utility model; Figure 7 This is a schematic diagram of the support mechanism in this utility model; Figure 8 This is an exploded view of the bearing support assembly in this utility model; Figure 9 This is a top view (II) of the bearing assembly device in this utility model; Figure 10 This is a schematic diagram of the multi-station turntable in this utility model.

[0021] Explanation of icon numbers: 1. Main unit rack; 2. Material pallet; 21. First temporary storage trough; 22. Second temporary storage trough; 3. Transfer mechanism; 31. Gantry frame; 32. First drive module; 33. Second drive module; 34. Adapter frame; 4. Press; 5. Clamping mechanism; 51. Mounting base; 52. Pneumatic finger; 53. Positioning rod; 54. Third elastic element; 6. Press head mechanism; 61. Connecting plate; 62. Bearing press head; 63. Abutment rod 7. Support mechanism; 71. Top cover support assembly; 711. Abutment positioning plate; 712. Top cover support plate; 7121. Positioning hole; 713. Column; 714. Base plate; 715. First elastic element; 716. Top cover positioning groove; 72. Bearing support assembly; 721. Bearing support rod; 722. Bearing positioning sleeve; 723. Second elastic element; 724. Bearing positioning groove; 725. Limiting pin; 726. Limiting groove; 8. Multi-station turntable; 81. Turntable body; 82. Rotation drive module; 91. Top cover; 911. Positioning pin; 92. Bearing; 93. Sector gear; 94. Upper gear; 95. Connecting rod. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0023] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0024] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0025] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0026] Example 1 This embodiment provides a bearing assembly device for an electric actuator, used to assemble a bearing 92 onto the upper cover 91 of the electric actuator.

[0027] In this embodiment, the electric actuator includes an upper cover assembly and a lower cover assembly that interlock with each other. The assembly sequence of the entire electric actuator is as follows: first, the components constituting the electric actuator are assembled into the upper cover assembly and the lower cover assembly, and then the upper cover assembly is pressed onto the lower cover assembly.

[0028] Please see Figure 1As shown, the upper cover assembly includes an upper cover 91, a sector gear 93, an upper gear 94, and a connecting rod 95. The upper cover 91 is a hollow cavity with an opening at the lower end. The sector gear 93 is located within the cavity of the upper cover 91. The shaft of the sector gear 93 is vertically mounted inside the upper cover 91, and its upper end is connected to the upper cover 91 via a bearing 92, extending beyond the upper cover 91. The connecting rod 95 is located outside the upper cover 91 and is connected to the upper end of the shaft. The upper gear 94 is located inside the upper cover 91 and meshes with the sector gear 93.

[0029] The assembly steps of the upper cover assembly are as follows: meshing the sector gear 93 with the upper gear 94 to obtain a gear assembly; assembling the bearing 92 on the upper cover 91 to obtain an intermediate part; installing the intermediate part on the sector gear 93 shaft of the gear assembly to obtain a semi-finished product; and assembling the connecting rod 95 on the sector gear 93 shaft of the semi-finished product to obtain the upper cover assembly.

[0030] This bearing assembly device is used in the assembly of the upper cover assembly. Specifically, this bearing assembly device is used to press the bearing 92 onto the bearing mounting hole of the upper cover 91 to obtain an intermediate part; this bearing assembly device then assembles the intermediate part onto the rotating shaft of the sector gear 93 to obtain a semi-finished product.

[0031] Please see Figures 2-3 As shown, the bearing assembly device includes a main frame 1, a material tray 2, a transfer mechanism 3, a press 4, a clamping mechanism 5, a pressing head mechanism 6, a support mechanism 7, and a control mechanism. The material tray 2, transfer mechanism 3, and press 4 are respectively located on the top of the main frame 1. The transfer mechanism 3 extends along a first horizontal direction, with the material tray 2 located below one end and the press 4 located below the other end. The drive end of the transfer mechanism 3 is equipped with a clamping mechanism 5, which is used to clamp the upper cover 91. The stamping end of the press 4 is connected to the pressing head mechanism 6 via a connecting plate 61. The top of the material tray 2 has a first temporary storage slot 21 (e.g., ...). Figure 4 As shown), it is used to accommodate the upper cover 91. A support mechanism 7 is vertically provided on the worktable of the press 4. The support mechanism 7 is distributed below the press head mechanism 6.

[0032] Please see Figure 3 and Figure 7 As shown, the support mechanism 7 includes an upper cover support assembly 71 and a bearing support assembly 72. The upper cover support assembly 71 is vertically and slidably mounted on the worktable of the press 4. A first elastic element 715 is vertically provided between the upper cover support assembly 71 and the press 4. An upper cover positioning groove 716 is formed on the top of the upper cover support assembly 71 to accommodate and position the upper cover 91. The bearing support assembly 72 is distributed within the upper cover positioning groove 716. A bearing positioning groove 724 is formed on the top of the bearing support assembly 72 to accommodate and position the bearing 92.

[0033] The control mechanism is located at the top of the main frame 1. The control mechanism includes a controller and a control panel. The controller and control panel are existing technologies and will not be described in detail. The controller is electrically connected to the transfer mechanism 3, the press 4, the clamping mechanism 5, and the pressing head mechanism 6, respectively. When the clamping mechanism 5 clamps the upper cover 91, the control mechanism is adapted to drive the transfer mechanism 3 to transfer the upper cover 91 onto the material tray 2 or the upper cover support assembly 71.

[0034] In this embodiment, please refer to Figure 3 and Figure 4 As shown, the top of the material tray 2 is also provided with a second temporary storage slot 22, which is used to accommodate the top cover 91 (i.e., intermediate part) on which the bearing 92 is installed. The second temporary storage slot 22 can be used to accommodate intermediate parts, semi-finished products, and top cover assemblies. The first temporary storage slot 21 and the second temporary storage slot 22 are arranged at intervals, and the first temporary storage slot 21 and the second temporary storage slot 22 are distributed in a first horizontal direction.

[0035] Furthermore, the edges of the first temporary storage slot 21 and the second temporary storage slot 22 are both provided with clearance notches for avoiding the clamping mechanism 5.

[0036] The working steps of this bearing assembly device are as follows: Workers are loading materials. For details, please refer to [link / reference]. Figure 3 As shown, the upper cover 91 is placed in the first temporary storage slot 21, the sector gear 93 and the upper gear 94 are placed in the second temporary storage slot 22, and the bearing 92 is placed in the bearing positioning slot 724. The upper cover 91 is placed with its opening facing downwards in the first temporary storage slot 21. The second temporary storage slot 22 has a shaft mounting hole that mates with the lower end of the sector gear 93's shaft. The second temporary storage slot 22 also has a mounting rod that mates with the axial center hole of the upper gear 94. The sidewalls of the second temporary storage slot 22 are adapted to limit the lower edge protrusion of the upper cover 91. To prevent the sector gear 93 from rotating within the second temporary storage slot 22, a limiting block is provided within the second temporary storage slot 22 to limit the movement of the sector gear 93.

[0037] Subsequently, the control mechanism drives the clamping mechanism 5 via the transfer mechanism 3 to transfer the upper cover 91 placed in the first temporary slot 21 to the upper cover positioning slot 716, so that the upper cover 91 is positioned above the bearing 92, and the bearing mounting holes of the upper cover 91 are distributed opposite to the bearing 92. The control mechanism first controls the clamping mechanism 5 to release the upper cover 91, and then drives the clamping mechanism 5 away from the press 4 through the transfer mechanism 3. After that, the control mechanism drives the press head mechanism 6 to descend through the press 4, and the press head mechanism 6 presses the upper cover 91 and the bearing 92 together to obtain the intermediate part.

[0038] The control mechanism drives the press head mechanism 6 to rise and reset via the press 4, and then drives the clamping mechanism 5 via the transfer mechanism 3 to transfer the intermediate part placed in the upper cover positioning groove 716 to the top of the second temporary placement groove 22, so that the bearing 92 on the intermediate part is relatively distributed with the sector gear 93 shaft placed in the second temporary placement groove 22.

[0039] The control mechanism drives the clamping mechanism 5 to descend via the transfer mechanism 3. The clamping mechanism 5 presses the inner ring of the bearing 92 of the intermediate part onto the rotating shaft of the sector gear 93 to obtain a semi-finished product.

[0040] Subsequently, the control mechanism controls the clamping mechanism 5 to release the intermediate component, and then the control mechanism drives the transfer mechanism 3 and the clamping mechanism 5 to reset.

[0041] Please see Figures 2-3 As shown, the transfer mechanism 3 includes a gantry frame 31, a first drive module 32, and a second drive module 33. The gantry frame 31 is located on top of the main frame 1. The top crossbeam of the gantry frame 31 extends along a first horizontal direction. The material pallet 2 and the press 4 are distributed at both ends of the top crossbeam of the gantry frame 31. The first drive module 32 is a linear drive module that extends along the first horizontal direction. The fixed end of the first drive module 32 is connected to the top crossbeam of the gantry frame 31, and the drive end of the first drive module 32 is connected to the fixed end of the second drive module 33 through an adapter frame 34. The first drive module 32 is adapted to drive the second drive module 33 to move along the first horizontal direction. The second drive module 33 is a linear drive module that extends along a vertical direction. The upper end of the second drive module 33 is the fixed end, and the lower end of the second drive module 33 is the drive end. The drive end of the second drive module 33 is connected to the clamping mechanism 5 through a mounting base 51. The second drive module 33 is adapted to drive the clamping mechanism 5 to move in the vertical direction.

[0042] Furthermore, in order to ensure that the first drive module 32 can drive the second drive module 33 to move smoothly, the adapter 34 and the top crossbeam of the gantry 31 are provided with a sliding rail and a slider that cooperate with each other.

[0043] Please see Figure 2 , Figure 5 and Figure 6 As shown, the clamping mechanism 5 includes a mounting base 51, a pneumatic finger 52, and a positioning rod 53. The mounting base 51 is located at the drive end of the second drive module 33. The pneumatic finger 52 is positioned below the mounting base 51, and its fixed end is connected to the mounting base 51. Two grippers are provided opposite each other on the drive end of the pneumatic finger 52. A slot is provided on the inner side of the gripper, which is adapted to engage with the protrusion on the lower edge of the upper cover 91.

[0044] Please see Figure 6As shown, the positioning rod 53 is vertically and slidably mounted on the mounting base 51, suitable for insertion into the bearing mounting hole of the upper cover 91, or into the inner ring of the bearing 92. A third elastic element 54 is provided between the positioning rod 53 and the mounting base 51. The two ends of the third elastic element 54 abut against the positioning rod 53 and the mounting base 51, respectively.

[0045] In this embodiment, the positioning rod 53 has an abutting flange and a limiting flange on its outer periphery. The abutting flange is located below the third elastic member 54 and abuts against the third elastic member 54. The limiting flange is located above the mounting base 51 to prevent the positioning rod 53 from accidentally disengaging from the mounting base 51. The abutting flange of the positioning rod 53 is adapted to be located above the upper cover 91 and spaced apart from the upper cover 91.

[0046] In this embodiment, the lower end of the positioning rod 53 is provided with a positioning tip, which is suitable for cooperating with the groove on the top of the sector gear 93 shaft.

[0047] In this embodiment, please refer to Figure 5 As shown, when the pneumatic finger 52 is used for transfer, its two grippers hold the arc-shaped notch structure and the straight strip structure of the upper cover 91, respectively. Therefore, during the transfer process, the relative position between the upper cover 91 and the pneumatic finger 52 does not change, that is, the upper cover 91 will not slide on the pneumatic finger 52.

[0048] Please see Figure 3 As shown, the press 4 includes a C-shaped frame and a third drive module. The third drive module is vertically arranged, and its drive end is connected to the connecting plate 61. The third drive module is adapted to drive the connecting plate 61 to move up and down. The support mechanism 7 is set on the worktable at the lower end of the C-shaped frame.

[0049] Furthermore, in order to ensure that the third drive module can drive the connecting plate 61 to move up and down smoothly, the connecting plate 61 and the C-shaped frame are provided with a sliding rail and a slider that cooperate with each other.

[0050] Please see Figure 3 As shown, the pressure head mechanism 6 includes a connecting plate 61, a bearing pressure head 62, and an abutment rod 63. The top of the connecting plate 61 is connected to the drive end of the third drive module. The bearing pressure head 62 and the abutment rod 63 are spaced apart and vertically arranged at the bottom of the connecting plate 61. The bearing pressure head 62 is distributed opposite to the bearing positioning groove 724 and is adapted to abut against the top surface of the upper cover 91. The abutment rod 63 is adapted to abut against the top outer edge of the upper cover support assembly 71.

[0051] Please see Figure 7As shown, the upper cover support assembly 71 includes, from top to bottom, an abutment positioning plate 711, an upper cover support plate 712, a column 713, and a base plate 714. The base plate 714 is mounted on the worktable at the lower end of the C-shaped frame. The bearing support assembly 72 and the column 713 are spaced apart and vertically mounted on the top of the base plate 714. The upper cover support plate 712 is slidably mounted on the column 713. The abutment positioning plate 711 is fixed to the top of the upper cover support plate 712. The inner sidewall of the abutment positioning plate 711 and the top surface of the upper cover support plate 712 form an upper cover positioning groove 716. A first elastic member 715 is sleeved on the column 713. The two ends of the first elastic member 715 abut against the upper cover support plate 712 and the base plate 714, respectively.

[0052] In this embodiment, there are four columns 713, which are distributed at the four corners of the base plate 714.

[0053] In this embodiment, there are three abutment rods 63, which are distributed around the upper cover positioning groove 716 and are suitable for abutting against the top surface of the abutment positioning plate 711.

[0054] To prevent the upper cover support plate 712 from accidentally detaching from the column 713, an anti-detachment bolt (not shown in the figure) is provided at the upper end of the column 713. The anti-detachment bolt is vertically arranged and includes a lower screw and an upper nut. The lower end of the lower screw is connected to the column 713, and the upper end of the lower screw passes through the upper cover support plate 712 and is connected to the upper nut. The upper nut is suitable for limiting the upper cover support plate 712 in the vertical direction, that is, limiting the sliding range of the upper cover support plate 712.

[0055] In this embodiment, in the lower cover assembly of the electric actuator, a positioning groove is vertically provided on the inner edge of the lower cover, and a positioning post 911 is vertically provided on the inner edge of the upper cover 91. The positioning post 911 is adapted to cooperate with the positioning groove. To ensure that the upper cover positioning groove 716 can effectively position the upper cover 91, a positioning hole 7121 is provided on the top of the upper cover support plate 712 (e.g., Figure 7 (As shown). The positioning hole 7121 is adapted to mate with the positioning post 911.

[0056] Please see Figures 7-8 As shown, the bearing support assembly 72 includes a bearing support rod 721, a bearing positioning sleeve 722, and a second elastic element 723. The bearing support rod 721 is vertically arranged, with its lower end mounted on the base plate 714. The bearing positioning sleeve 722 is fitted onto the upper end of the bearing support rod 721. The second elastic element 723 is fitted onto the bearing support rod 721 and positioned below the bearing positioning sleeve 722. Both ends of the second elastic element 723 abut against the bearing support rod 721 and the bearing positioning sleeve 722, respectively. The inner hole at the upper end of the bearing positioning sleeve 722 and the top surface of the bearing support rod 721 form a bearing positioning groove 724.

[0057] Furthermore, to prevent the bearing locating sleeve 722 from accidentally detaching from the bearing support rod 721, a limiting pin 725 is provided at the lower end of the bearing locating sleeve 722, extending horizontally. A limiting groove 726 extending vertically is provided on the bearing support rod 721. The limiting pin 725 cooperates with the limiting groove 726.

[0058] The control mechanism is electrically connected to the first drive module 32, the second drive module 33, the press 4, and the pneumatic finger 52, respectively.

[0059] The working principle of the bearing assembly device is as follows: The staff placed the top cover 91 in the first temporary slot 21, placed the sector gear 93 and the upper gear 94 in the second temporary slot 22, and placed the bearing 92 in the bearing positioning slot 724.

[0060] The operator starts the bearing assembly device via the control panel. The control mechanism drives the adapter 34 to move horizontally through the first drive module 32, so that the adapter 34 transfers the clamping mechanism 5 directly above the first temporary slot 21, and the positioning rod 53 is positioned opposite to the bearing assembly hole of the upper cover 91. At this time, the third elastic element 54, the first elastic element 715, and the second elastic element 723 are in a free state.

[0061] The control mechanism drives the clamping mechanism 5 to descend via the second drive module 33, so that the lower end of the positioning rod 53 is inserted into the bearing assembly hole of the upper cover 91, and the third elastic element 54 is in a free state. Afterwards, the control mechanism drives the pneumatic finger 52 to clamp the lower edge protrusion of the upper cover 91.

[0062] After the pneumatic finger 52 grips the lower edge of the upper cover 91, the control mechanism drives the pneumatic finger 52 through the first drive module 32 and the second drive module 33 to transfer the upper cover 91 into the upper cover positioning groove 716 so that the bearing 92 is placed below the upper cover 91.

[0063] Once the upper cover 91 is transferred to the upper cover positioning slot 716, the control mechanism drives the pneumatic finger 52 to release the upper cover 91. After that, the control mechanism drives the clamping mechanism 5 to rise through the second drive module 33 so that the positioning rod 53 separates from the bearing assembly hole of the upper cover 91; the control mechanism then drives the clamping mechanism 5 away from the press 4 through the first drive module 32 and the second drive module 33.

[0064] The control mechanism drives the press head mechanism 6 to descend via the press 4, so that the bearing press head 62 abuts against the top surface of the upper cover 91, the bearing press head 62 is relatively distributed with the bearing 92, the abutting rod 63 abuts against the top surface of the abutting positioning plate 711, and the abutting rod 63 is distributed around the upper cover 91.

[0065] Subsequently, the press 4 continues to drive the press head mechanism 6 to descend, and the bearing 92 placed in the bearing positioning groove 724 is pressed into the upper cover 91 to obtain the intermediate part. At the same time, the abutment rod 63 drives the abutment positioning plate 711 to descend to ensure that the abutment positioning plate 711 is relatively stationary with respect to the upper cover 91.

[0066] When the bearing pressure head 62 drives the upper cover 91 to descend, the upper cover 91 drives the bearing positioning sleeve 722 to descend, so that the bearing 92 placed in the bearing positioning groove 724 is exposed outside the bearing support assembly 72. At the same time, the bearing 92 is stationary under the support of the bearing support rod 721.

[0067] Therefore, the descending upper cover 91 can press the stationary bearing 92 into the bearing mounting hole of the upper cover 91, and the outer ring of the bearing 92 is interference-fitted with the bearing mounting hole of the upper cover 91.

[0068] After the pressing is completed, the control mechanism drives the pressing head mechanism 6 to rise and reset through the press 4. After the abutting rod 63 separates from the abutting positioning plate 711 and the bearing pressing head 62 separates from the upper cover 91, the first elastic element 715 resets and rebounds, so that the abutting positioning plate 711 rises and resets; at the same time, the second elastic element 723 resets and rebounds, so that the bearing positioning sleeve 722 rises and resets.

[0069] Subsequently, the control mechanism drives the clamping mechanism 5 to move above the intermediate part via the transfer mechanism 3, so that the lower end of the positioning rod 53 is inserted into the inner ring of the bearing 92 and the third elastic element 54 is in a free state. The control mechanism controls the pneumatic finger 52 to clamp the intermediate part, and then drives the clamping mechanism 5 via the transfer mechanism 3 to transfer the intermediate part to directly above the second temporary slot 22, so that the positioning tip at the lower end of the positioning rod 53 is placed in the groove at the top of the sector gear 93 shaft.

[0070] Subsequently, the control mechanism drives the clamping mechanism 5 to descend via the second drive module 33, so that the upper end of the sector gear 93's shaft inserts into the inner ring of the bearing 92. During the insertion of the upper end of the sector gear 93's shaft into the inner ring of the bearing 92, the upper end of the sector gear 93's shaft abuts against the positioning tip of the positioning rod 53, causing the positioning rod 53 to move vertically upward and the third elastic element 54 to be in a compressed state. Therefore, during the insertion of the upper end of the sector gear 93's shaft into the inner ring of the bearing 92, the positioning rod 53 serves to vertically guide and position the intermediate component.

[0071] After the upper end of the sector gear 93's shaft is assembled with the inner ring of the bearing 92, a semi-finished product is obtained. At this time, the pneumatic finger 52 is still spaced apart from the material tray 2. The control mechanism controls the pneumatic finger 52 to release the upper cover 91. The control mechanism uses the transfer mechanism 3 to move the clamping mechanism 5 away from the semi-finished product to achieve resetting. During this process, when the sector gear 93 separates from the positioning rod 53, the third elastic element 54 returns to its original position to allow the positioning rod 53 to complete its resetting.

[0072] This embodiment utilizes a transfer mechanism, a press, a clamping mechanism, a pressure head mechanism, and a support mechanism to assemble the bearing onto the upper cover, effectively reducing manual operation time and costs and improving work efficiency. A floating positioning rod is used to reduce the assembly difficulty between the upper end of the sector gear shaft and the inner ring of the bearing. A bearing support assembly is also used to reduce the assembly difficulty between the bearing and the upper cover.

[0073] Example 2 The difference between this embodiment and embodiment 1 is that, in this embodiment, the bearing assembly device further includes a multi-station turntable 8.

[0074] Please see Figures 9-10 As shown, the material tray 2 is connected to the main frame 1 via a multi-station turntable 8. The multi-station turntable 8 includes a turntable body 81 and a rotary drive module 82. The turntable body 81 is mounted on top of the main frame 1 via the rotary drive module 82. The rotary drive module 82 is adapted to drive the turntable body 81 to rotate horizontally. The material tray 2 is detachably mounted on the turntable body 81.

[0075] The top of the main frame 1 is equipped with multiple workstations, including a loading station, a bearing pressing station, a connecting rod assembly station, and a discharging station. The loading station, bearing pressing station, connecting rod pressing station, connecting rod welding station, and transfer station are sequentially distributed around the multi-station turntable 8. The transfer mechanism 3 and the press 4 are located at the bearing pressing station of the main frame 1. When the multi-station turntable 8 drives the material tray 2 to flow to the bearing pressing station of the main frame 1, the first temporary storage trough 21 and the second temporary storage trough 22 extend in the first horizontal direction.

[0076] In this embodiment, the working principle of the bearing assembly device is as follows: When the rotary drive module 82 drives the empty material pallet 2 to the loading station, the staff will carry out the loading work.

[0077] After the loading process is completed, the rotary drive module 82 drives the material tray 2 to the bearing pressing station. When the material tray 2 reaches the bearing pressing station, the bearing assembly device presses the bearing 92 onto the upper cover 91 to obtain a semi-finished product. Afterwards, the rotary drive module 82 drives the material tray 2 to the connecting rod assembly station, where the operator assembles the connecting rod 95 onto the semi-finished product to obtain the upper cover assembly. Finally, the rotary drive module 82 drives the material tray 2 to the unloading station for subsequent transfer of the upper cover assembly.

[0078] This embodiment improves work efficiency by setting up a multi-station turntable to facilitate the transfer of material pallets.

[0079] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A bearing assembly device for an electric actuator, characterized in that, Includes a material pallet (2), a transfer mechanism (3) and a press (4) respectively set on top of the main frame (1); The transfer mechanism (3) extends along the first horizontal direction, with the material tray (2) located below one end and the press (4) located below the other end; the drive end of the transfer mechanism (3) is provided with a clamping mechanism (5). The top of the material tray (2) is provided with a first temporary slot (21) for accommodating the top cover (91). The stamping end of the press (4) is connected to the press head mechanism (6) via a connecting plate (61); a support mechanism (7) is vertically provided on the worktable of the press (4), and the support mechanism (7) is distributed below the press head mechanism (6); the support mechanism (7) includes an upper cover support assembly (71) and a bearing support assembly (72). The upper cover support assembly (71) is vertically and slidably mounted on the press (4), and a first elastic element (715) is vertically provided between the upper cover support assembly (71) and the press (4); an upper cover positioning groove (716) is provided on the top of the upper cover support assembly (71); the bearing support assembly (72) is distributed in the upper cover positioning groove (716), and a bearing positioning groove (724) is provided on the top of the bearing support assembly (72). The control mechanism provided on the main frame (1) is adapted to drive the transfer mechanism (3) to transfer the top cover (91) to the material tray (2) or the top cover support assembly (71) when the clamping mechanism (5) clamps the top cover (91).

2. The bearing assembly device according to claim 1, characterized in that, The pressure head mechanism (6) includes the connecting plate (61), the bearing pressure head (62), and the abutment rod (63). The top of the connecting plate (61) is connected to the stamping end of the press (4); the bearing pressure head (62) and the abutment rod (63) are spaced apart and are respectively vertically arranged at the bottom of the connecting plate (61); The bearing pressure head (62) is distributed opposite to the bearing positioning groove (724) and is suitable for abutting against the top surface of the upper cover (91); The abutment rod (63) is adapted to abut against the top outer edge of the cover support assembly (71).

3. The bearing assembly device according to claim 1, characterized in that, The upper cover support assembly (71) includes, from top to bottom, an abutment positioning plate (711), an upper cover support plate (712), a column (713), and a base plate (714). The base plate (714) is mounted on the press (4); The bearing support assembly (72) and the column (713) are spaced apart and are respectively vertically installed on the top of the base plate (714); The upper cover support plate (712) is slidably mounted on the column (713) and the upper end of the column (713) is provided with anti-loosening bolts; the top of the upper cover support plate (712) is provided with positioning holes (7121), and the positioning holes (7121) are adapted to cooperate with the positioning posts (911) on the inner edge of the upper cover (91); The abutting positioning plate (711) is fixed to the top of the upper cover support plate (712); the inner sidewall of the abutting positioning plate (711) and the top surface of the upper cover support plate (712) enclose the upper cover positioning groove (716). The first elastic element (715) is sleeved on the column (713), and its two ends abut against the upper cover support plate (712) and the bottom plate (714) respectively.

4. The bearing assembly device according to claim 1, characterized in that, The bearing support assembly (72) includes a bearing support rod (721), a bearing positioning sleeve (722), and a second elastic element (723). The bearing support rod (721) is set vertically, and its lower end is set on the worktable of the press (4); The bearing positioning sleeve (722) is sleeved on the upper end of the bearing support rod (721); The second elastic element (723) is sleeved on the bearing support rod (721) and positioned below the bearing positioning sleeve (722). The two ends of the second elastic element (723) abut against the bearing support rod (721) and the bearing positioning sleeve (722) respectively. The inner hole at the upper end of the bearing positioning sleeve (722) and the top surface of the bearing support rod (721) form the bearing positioning groove (724).

5. The bearing assembly device according to claim 4, characterized in that, The lower end of the bearing positioning sleeve (722) is provided with a limiting pin (725), which extends in the horizontal direction; The bearing support rod (721) is provided with a limiting groove (726) that cooperates with the limiting pin (725); the limiting groove (726) extends in the vertical direction.

6. The bearing assembly device according to claim 1, characterized in that, The transfer mechanism (3) includes a gantry (31), a first drive module (32), and a second drive module (33); The gantry frame (31) is located on top of the main frame (1), and the top crossbeam of the gantry frame (31) extends along the first horizontal direction; the material tray (2) and the press (4) are distributed at both ends of the top crossbeam of the gantry frame (31); The first drive module (32) extends along the first horizontal direction, its fixed end is connected to the top crossbeam of the gantry (31), and its drive end is connected to the fixed end of the second drive module (33) through the adapter (34). The second drive module (33) extends vertically, with its upper end being a fixed end and its lower end being a drive end; the drive end of the second drive module (33) is connected to the clamping mechanism (5) through the mounting base (51).

7. The bearing assembly device according to claim 1, characterized in that, The clamping mechanism (5) includes a mounting base (51), a pneumatic finger (52), and a positioning rod (53); The mounting base (51) is disposed at the drive end of the transfer mechanism (3); The pneumatic finger (52) is placed below the mounting base (51); the fixed end of the pneumatic finger (52) is connected to the mounting base (51), and the driving end of the pneumatic finger (52) is provided with a slot, which is adapted to engage with the protrusion at the lower edge of the cover (91). The positioning rod (53) is vertically and slidably mounted on the mounting base (51), and is suitable for insertion into the bearing mounting hole of the upper cover (91) or into the inner ring of the bearing (92); A third elastic element (54) is provided between the positioning rod (53) and the mounting base (51), and the two ends of the third elastic element (54) abut against the positioning rod (53) and the mounting base (51) respectively.

8. The bearing assembly device according to claim 7, characterized in that, The outer periphery of the positioning rod (53) is provided with an abutting flange and a limiting flange; The abutting protrusion is positioned below the third elastic member (54) and abuts against the third elastic member (54); The limiting protrusion is positioned above the mounting base (51).

9. The bearing assembly device according to claim 1, characterized in that, The top of the material tray (2) is provided with the first temporary storage slot (21) and the second temporary storage slot (22) spaced apart. The first temporary storage slot (21) and the second temporary storage slot (22) extend in the first horizontal direction; The second temporary storage slot (22) is used to accommodate the top cover (91) on which the bearing (92) is installed.

10. The bearing assembly device according to claim 1, characterized in that, The material pallet (2) is connected to the main frame (1) via a multi-station turntable (8); The multi-station turntable (8) includes a turntable body (81) and a rotation drive module (82). The turntable body (81) is mounted on top of the main frame (1) via the rotation drive module (82); The material tray (2) is detachably mounted on the turntable body (81).

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