Motor rotor bearing press-fitting machine

Abstract

The utility model provides a motor rotor bearing press-fitting machine, which comprises a rack, a tray conveying line, a tooling tray, a semi-automatic fence and a counter-force lifting mechanism, the rack is arranged in the semi-automatic fence, the tray conveying line penetrates through the rack and is used for conveying the tooling tray, the tooling tray is arranged on the tray conveying line, and the counter-force lifting mechanism is arranged on the semi-automatic fence. The lower bearing is used for fixedly mounting the rotor; the counter-force lifting mechanism is fixed on a base of the rack and is used for lifting and positioning when the tool tray reaches a station; the beneficial effects of the utility model are that the press head machine is matched with the rotor in a positioning manner to realize rapid positioning press fitting, the press fitting production of the rotor bearing can be rapidly carried out through the matching with the tray conveying line, the semi-automatic press fitting of the bearing at the upper end and the lower end of the motor rotor is realized, the production efficiency and the assembly quality are improved, and the production cost is reduced. And the press-fitting distance between the rotor and the bearing can be kept unchanged, so that the press-fitting quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of rotor bearing press-fitting, in particular to a motor rotor bearing press-fitting machine. Background Art

[0002] Since the beginning of the 21st century, China's automobile industry has developed rapidly, with hundreds of new models launched every year. As the core component of new energy vehicles, motors must be assembled faster while meeting production precision to meet the production needs of automobile manufacturers. In the assembly process of motors, the installation and positioning of the rotor is an important link. It is necessary to install the upper and lower bearings of the rotor on the basis of ensuring accurate positioning, which is a key step in the assembly process of motors.

[0003] The prior art retrieved is as follows:

[0004] Patent 1: A motor rotor bearing press-fitting mechanism (CN211102546U), the utility model discloses a motor rotor bearing press-fitting mechanism, including a frame, the upper part of the frame is fixed with a vertical downward and vertically penetrating positioning tube through a positioning frame, the top of the frame is provided with a vertically downward first telescopic push rod, the positioning tube is embedded with a push column, the top of the push column is fixedly connected with the telescopic end of the first telescopic push rod, the bottom of the push column is provided with a piston block, the frame is provided with a positioning column matched with the positioning tube just below the positioning tube, the positioning column is provided with a positioning hole for the electronic rotor shaft end to pass through, the outer periphery of the positioning column is covered with a cylindrical movable push block, the movable push block is provided with a through hole for the positioning column to pass through, the top of the movable push block is provided with a buffer layer, the bottom of the frame is provided with a pair of vertically upward second telescopic push rods, the telescopic end of the second telescopic push rod is fixed with the bottom of the movable push block. The utility model has the characteristics of simple structure and easy operation.

[0005] However, this equipment cannot achieve rapid assembly line production and meet the motor production rhythm requirements.

[0006] Patent 2: A rotor bearing press-fitting tool (CN217143799U). The present application discloses a rotor bearing press-fitting tool, comprising a press machine connection block, a pressure head installed at the bottom of the press machine connection block, and a pressure plate installed at the bottom of the press machine connection block. A pair of guide column holes are arranged on the pressure plate, and linear bearings are installed in the guide column holes. The linear bearings are sleeved on the optical axis guide column, and a fixed bottom plate is installed at the bottom of the optical axis guide column; an axis fixing block is installed on the top of the fixed bottom plate, just below the pressure head, and the inside of the axis fixing block is evenly provided with accommodating cavities that are connected to the axis through-holes near the axis through-holes, and a magnetic steel block is slidably fitted in the accommodating cavity, and the magnetic steel block comprises a clamping side portion arranged toward the axis through-hole and a connecting side portion arranged opposite to the clamping side portion; a compression spring is arranged between the side portion of the accommodating cavity opposite to the axis through-hole and the connecting side portion, and after the press-fitted axis is inserted into the axis through-hole, the magnetic steel block moves to compress the compression spring. The present application can achieve the effect of preventing the bearing to be press-fitted from being crushed and reducing the scrap rate.

[0007] However, the pressing device of this equipment adopts manual adjustment for the positioning of the rotor, which is slow and inefficient. Utility Model Content

[0008] In order to overcome the above problems existing in the prior art, the utility model provides a motor rotor bearing press assembly machine.

[0009] The utility model discloses a motor rotor bearing press, comprising a frame, a pallet conveyor line, a tooling pallet, a semi-automatic fence and a reaction force lifting mechanism, wherein the frame is arranged in the semi-automatic fence, the pallet conveyor line passes through the frame and is used for providing transportation of the tooling pallet, the tooling pallet is arranged on the pallet conveyor line and is used for installing and fixing the lower bearing and the rotor of the rotor; the reaction force lifting mechanism is fixed on the base of the frame and is used for lifting and positioning the tooling pallet when it arrives at the work station.

[0010] On this basis, the frame includes a fixed base, supporting columns, a press mounting plate, a press fixing frame, a press support frame, a press head, a servo press, a photoelectric sensor and a position sensor; the fixed base is set on the ground, the supporting columns are installed on the fixed base to provide support for the press mounting plate; the press fixing frame is installed on the press mounting plate to provide support for the press support frame; the servo press is installed on the press mounting plate to provide power for the press support frame to move up and down; the position sensor is installed on the press fixing frame to detect whether the press support frame has reached the specified position; the photoelectric sensor is installed on the press fixing frame to detect whether the rotor upper mounting bearing is pre-installed on the press head.

[0011] On this basis, the press fixing frame includes a press fixing frame, a linear guide rail, a slider and a limit block. The linear guide rail and the slider are installed on the press fixing frame, and the limit block is installed at the end of the linear guide rail.

[0012] On this basis, the press support frame is installed on the slider and slides up and down. The press support frame includes a press head support frame, a connecting block, a floating joint and an extended connecting rod. The connecting block is installed on the press head support frame for fixed connection; the floating joint and the extended connecting rod are installed on the connecting block to connect the press support frame with the servo press.

[0013] On this basis, the press-fitting head includes a top block, an indexing pin, a positioning pin, a positioning bead, a press block, a spring 1, a lower pressure shaft, a guide rod, a flat head pin, an adjustment block, a tapered pin, a connecting shaft, a spring 2 and a sleeve. The top block is installed on the press block to pre-install the top-pressing rotor and the upper rotor bearing; the indexing pin and the positioning pin pass through the top block to fix the internal movable parts of the press-fitting head; the positioning bead is installed on the top block to fix the upper rotor bearing pre-installed on the press-fitting head; the guide rod and the spring 1 connect the top block and the lower pressure shaft to allow the press-fitting head to reset after compression. ; The guide rod is installed on the top block, the spring set is arranged on the guide rod, the flat head pin is installed on the shaft sleeve and inserted into the lower pressure shaft to prevent relative rotation; the lower pressure shaft and the pressure block are fixed by pins and bolts, and the adjustment block is installed on the press head support frame to provide position adjustment space for the entire press head; the connecting shaft is arranged in the pressure block, the tapered pin is continuously installed at the end of the connecting shaft, and the second set of springs is arranged at the top of the connecting shaft and placed in the lower pressure shaft, which can not only ensure the concentricity between the bearing installed and the rotor when the press is working, but also can eject the tapered pin.

[0014] Compared with the prior art, the beneficial effects of the utility model are: rapid positioning and pressing can be achieved through the positioning cooperation between the pressing head machine and the rotor, and the rotor bearing can be quickly pressed and produced through cooperation with the pallet conveyor line, thereby realizing semi-automatic pressing of bearings at the upper and lower ends of the motor rotor, improving production efficiency and assembly quality, and also being able to keep the pressing distance between the rotor and the bearing unchanged, thereby ensuring the pressing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the motor rotor bearing press-fitting machine of the utility model;

[0016] Figure 2 It is a schematic diagram of the frame structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the press-fitting machine fixing frame and the press-fitting machine supporting frame of the utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the press-fitting head of the utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the press-fitting head of the utility model;

[0020] Figure 6 It is a three-dimensional structural schematic diagram of the reaction force lifting mechanism of the utility model;

[0021] In the figure: 1, frame, 1-1, fixed base, 1-2, support column, 1-3, press machine mounting plate, 1-4, press machine fixed frame, 1-4-1, press machine fixed frame, 1-4-2, linear guide rail, 1-4-3, slider, 1-4-4, limit block, 1-5, press machine support frame, 1-5-1, press machine head support frame, 1-5-2, connecting block, 1-5-3, floating joint, 1-5-4, extended connecting rod, 1-6, press head, 1-6-1, top block, 1-6-2, divider Degree pin, 1-6-3, positioning pin, 1-6-4, positioning bead, 1-6-5, connecting column, 1-6-6, spring one, 1-6-8, mounting column, 1-6-9, guide rod, 1-6-10, flat head pin, 1-6-11, adjustment block, 1-6-12, taper pin, 1-6-13, connecting rod, 1-6-14, spring, 1-7, servo press, 1-8, photoelectric sensor, 1-9, position sensor, 2, pallet conveyor line, 3, tooling pallet, 4, semi-automatic fence, 5, reaction lifting mechanism. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] The utility model discloses a motor rotor bearing press machine, referring to Figure 1 and Figure 6 , including a frame 1, a pallet conveyor line 2, a tooling pallet 3, a semi-automatic fence 4 and a lifting and positioning mechanism 5. The frame 1 is arranged in the semi-automatic fence 4. The pallet conveyor line 2 passes through the frame 1 and is used to provide transportation for the tooling pallet 3. The tooling pallet 3 is arranged on the pallet conveyor line 2 and moves along the X direction. It is a carrier of the workpiece and is used to install and fix the lower bearing and the rotor of the rotor. The reaction force lifting mechanism 5 is fixed on the base of the frame 1 and is used for lifting and positioning the tooling pallet when it arrives at the workstation.

[0024] refer to Figure 2The frame 1 includes a fixed base 1-1, a supporting column 1-2, a press mounting plate 1-3, a press fixing frame 1-4, a press supporting frame 1-5, a press head 1-6, a servo press 1-7, a photoelectric sensor 1-8 and a position sensor 1-9. The fixed base 1-1 is set on the ground, and the supporting column 1-2 is installed on the fixed base 1-1 to provide support for the press mounting plate 1-3; the press fixing frame 1-4 is installed on the press mounting plate 1-3 to provide support for the press supporting frame 1-5; the servo press 1-7 is installed on the press mounting plate 1-3 to provide power for the press supporting frame 1-5 to move up and down; the position sensor 1-9 is installed on the press fixing frame 1-4 to detect whether the press supporting frame 1-5 has reached the specified position; the photoelectric sensor 1-8 is installed on the press fixing frame 1-4 to detect whether the upper rotor mounting bearing is pre-installed on the press head 1-6.

[0025] refer to Figure 3 The press fixing frame 1-4 includes a press fixing frame 1-4-1, a linear guide rail 1-4-2, a slider 1-4-3 and a limit block 1-4-4. The linear guide rail 1-4-2 and the slider 1-4-3 are installed on the press fixing frame 1-4-1, and the limit block 1-4-4 is installed at the end of the linear guide rail 1-4-2.

[0026] refer to Figure 3 The press support frame 1-5 is installed on the slider 1-4-3 and slides up and down. The press support frame 1-5 includes a press head support frame 1-5-1, a connecting block 1-5-2, a floating joint 1-5-3 and an extended connecting rod 1-5-4. The connecting block 1-5-2 is installed on the press head support frame 1-5-1 for fixed connection; the floating joint 1-5-3 and the extended connecting rod 1-5-4 are installed on the connecting block 1-5-2 to connect the press support frame 1-5 with the servo press 1-7.

[0027] refer to Figure 4 and Figure 5The press head 1-6 includes a top block 1-6-1, a dividing pin 1-6-2, a positioning pin 1-6-3, a positioning bead 1-6-4, a press block 1-6-5, a spring 1-6-6, a lower pressing shaft 1-6-8, a guide rod 1-6-9, a flat head pin 1-6-10, an adjustment block 1-6-11, a taper pin 1-6-12, a connecting shaft 1-6-13, a spring 2 1-6-14 and a sleeve 1-6-15. The top block 1-6-1 is installed Installed on the pressing block 1-6-5, to pre-install the top-pressing rotor and the upper bearing of the rotor; the indexing pin 1-6-2 and the positioning pin 1-6-3 pass through the top block 1-6-1 to fix the internal moving parts on the pressing head 1-6, and the positioning bead 1-6-4 is installed on the top block 1-6-1 to fix the upper bearing of the rotor pre-installed on the pressing head 1-6; the guide rod 1-6-9 and the spring 1-6-6 connect the top block 1-6-1 and the lower pressing shaft 1-6- 8, in order to allow the pressing head 1-6 to reset after compression; the guide rod 1-6-9 is installed on the top block 1-6-1, the spring 1-6-6 is sleeved on the guide rod 1-6-9, the flat head pin 1-6-10 is installed on the shaft sleeve 1-6-15 and inserted into the lower pressing shaft 1-6-8 to prevent relative rotation; the lower pressing shaft 1-6-8 and the pressing block 1-6-5 are fixed by pins and bolts, and the adjustment block 1-6-11 is installed on the pressing head support frame 1- 5, providing position adjustment space for the entire press head 1-6; the connecting shaft 1-6-13 is arranged in the pressing block 1-6-5, the tapered pin 1-6-12 is installed at the end of the connecting shaft 1-6-13, and the spring 1-6-14 is sleeved on the top of the connecting shaft 1-6-13 and placed in the pressing block 1-6-5, which can not only ensure the concentricity between the bearing installed for the press head 1-6 and the rotor when working, but also can push out the tapered pin 1-6-12.

[0028] The working principle of the utility model is as follows: the tooling tray 3 carries the workpiece with the lower bearing and the rotor pre-installed into the press machine through the conveyor line. After arriving at the position, the tooling tray 3 is lifted and positioned by the reaction force lifting mechanism 5. The photoelectric sensor 1-8 detects that there is no upper rotor bearing on the press head. The servo press 1-7 starts to provide power to drive the press support frame 1-5 and the press head 1-6 to move downward. When the top block 1-6-1 on the press head 1-6 starts to contact the top of the rotor, the cone pin 1-6-12 has already supported the conical notch on the upper part of the rotor to achieve positioning. The rotor begins to be pressed downward. When the lower bearing contacts the lower part of the rotor, the top block 1-6-12 is pressed against the conical notch on the upper part of the rotor to achieve positioning. The rotor begins to be pressed downward. When the lower bearing contacts the lower part of the rotor, the top block 1-6-12 is pressed against the conical notch on the upper part of the rotor to achieve positioning. Block 1-6-1 begins to rise slowly and starts to compress spring 1-6-6. At the same time, cone pin 1-6-12 also begins to rise and compresses spring 1-6-14 until it can no longer be compressed. At this time, the lower bearing of the rotor in the initial state begins to be pressed into the rotor. The installation of the lower bearing is completed. The servo press 1-7 begins to provide power to drive the press support frame 1-5 and the press head 1-6 to move upward and separate from the rotor until the first sensor 1-9 receives a signal. The support frame 1-5 and the press head 1-6 return to their original positions. Manual entry into the working area is performed to install the upper bearing of the rotor into the top block 1-6-1 and position it with the positioning bead 1-6-4. Then, the operator manually leaves the working area and presses the working switch. The photoelectric sensor 1-8 detects that there is an upper rotor bearing on the pressing head 1-6. The servo press 1-7 starts to provide power, driving the pressing machine support frame 1-5 and the pressing head 1-6 to move downward. When the top block 1-6-1 on the pressing head 1-6 starts to contact the top of the rotor, the cone pin 1-6-7 has already supported the conical notch on the upper part of the rotor to achieve positioning. The rotor starts to be pressed downward. When the lower bearing contacts the lower part of the rotor, the top block 1-6-1 starts to rise slowly and starts to compress the spring. 1-6-6 At the same time, the cone pin 1-6-12 also begins to rise and compresses the spring 1-6-14 until it can no longer be compressed. At this time, the upper bearing of the rotor begins to be pressed into the rotor. The upper bearing is installed, and the servo press 1-7 begins to provide power to drive the press support frame 1-5 and the press head 1-6 to move upward and separate from the rotor until the first sensor 1-9 receives a signal, and the support frame 1-5 and the press head 1-6 return to their original positions, the reaction force lifting mechanism 5 is reset, and the pallet conveyor line 2 drives the tooling pallet 3 to flow into the next station.

[0029] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation", "screwing", "pad installation" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0031] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A motor rotor bearing press machine, characterized in that: It includes a frame (1), a pallet conveyor line (2), a tooling pallet (3), a semi-automatic fence (4) and a reaction force lifting mechanism (5). The frame (1) is arranged in a semi-automatic fence (4); The pallet conveyor line (2) passes through the frame (1) and is used to provide conveyance for tooling pallets (3); The tooling pallet (3) is arranged on the pallet conveyor line (2) and is used to install and fix the lower bearing of the rotor and the rotor; The reaction force lifting mechanism (5) is fixed on the base of the frame (1) and is used for lifting and positioning the tooling pallet when it arrives at the workstation.

2. The motor rotor bearing press assembly machine according to claim 1, characterized in that: The frame (1) comprises a fixed base (1-1), a supporting column (1-2), a press machine mounting plate (1-3), a press machine fixing frame (1-4), a press machine supporting frame (1-5), a press head (1-6), a servo press (1-7), a photoelectric sensor (1-8) and a position sensor (1-9); the fixed base (1-1) is arranged on the ground, the supporting column (1-2) is mounted on the fixed base (1-1), the press machine fixing frame (1-4) is mounted on the press machine mounting plate (1-3), the servo press (1-7) is mounted on the press machine mounting plate (1-3), the position sensor (1-9) is mounted on the press machine fixing frame (1-4), and the photoelectric sensor (1-8) is mounted on the press machine fixing frame (1-4).

3. The motor rotor bearing press assembly machine according to claim 2, characterized in that: The press-fitting machine fixed frame (1-4) comprises a press-fitting machine fixed frame (1-4-1), a linear guide rail (1-4-2), a slider (1-4-3) and a limit block (1-4-4); the linear guide rail (1-4-2) and the slider (1-4-3) are mounted on the press-fitting machine fixed frame (1-4-1), and the limit block (1-4-4) is mounted on the end of the linear guide rail (1-4-2).

4. The motor rotor bearing press assembly machine according to claim 3, characterized in that: The press-fitting head (1-6) comprises a top block (1-6-1), an indexing pin (1-6-2), a positioning pin (1-6-3), a positioning bead (1-6-4), a press block (1-6-5), a spring 1 (1-6-6), a lower pressing shaft (1-6-8), a guide rod (1-6-9), a flat head pin (1-6-10), an adjustment block (1-6-11), a taper pin (1-6-12), a connecting shaft (1-6-13), a spring 2 (1-6-14) and a shaft sleeve (1-6-15); the adjustment block (1-6-11) is mounted on a press-fitting head support frame (1-5-1); the top block (1-6-1) is fixed on the press block (1-6-5) through an indexing pin (1-6-2) and a positioning pin (1-6-3); the positioning bead (1-6-4) is mounted on the press block (1-6-5) and a lower pressing shaft (1-6-8). The invention is mounted on a top block (1-6-1), wherein the pressure block (1-6-5) and the top block (1-6-1) are connected via a guide rod (1-6-9), the spring 1 (1-6-6) is mounted on the guide rod (1-6-9), the lower pressure shaft (1-6-8) and the pressure block (1-6-5) are fixed by pins and bolts, the shaft sleeve (1-6-15) is mounted on the adjustment block (1-6-11) and connected to the lower pressure shaft (1-6-8) via a flat pin (1-6-10), the connecting shaft (1-6-13) is arranged in the pressure block (1-6-5), the cone pin (1-6-12) is mounted at the end of the connecting shaft (1-6-13), and the spring 2 (1-6-14) is sleeved on the top of the connecting shaft (1-6-13) and placed in the lower pressure shaft (1-6-8).

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