Automatic press-fitting machine for motor bearing

Abstract

An automatic press-fitting machine for a motor bearing comprises a rack, a motor rotor conveying line is arranged on the rack, a spacer press-fitting unit and a bearing press-fitting unit are arranged above the motor rotor conveying line, and an axial positioning seat is arranged on the motor rotor conveying line; the spacer press-fitting unit comprises a spacer mounting frame, and a first material taking manipulator is arranged on the spacer mounting frame; annular negative pressure suction nozzles are arranged on the two sides of the first material taking manipulator; and a spacer feeding mechanism is arranged below the annular negative pressure suction nozzle. The bearing press-fitting unit comprises a bearing mounting frame, and a first bearing positioning seat is fixedly arranged on one side of the bearing mounting frame. A second material taking manipulator is arranged on one side of the first bearing positioning seat; a second bearing positioning seat is arranged at the position, opposite to the first bearing positioning seat, of the bearing mounting frame. According to the invention, the rotatable annular negative pressure suction nozzle is used for replacing manual work to quickly pick, place and mount the spacer; the mechanical arm is used for replacing manual work to conduct quick press fitting on the bearing, the spacer detection photoelectricity is arranged on the conveying line on the rear side of the spacer press fitting unit, and neglected mounting of the spacer is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of bearing press-fitting equipment, and in particular to an automatic press-fitting machine for motor bearings. Background Art

[0002] During the motor production process, the installation accuracy of the bearing directly affects the performance and life of the motor. The installation of motor bearings is divided into two main steps: installing spacers and pressing bearings. In the traditional production process, the spacers and bearings are pre-installed on the motor shaft manually, and then the bearings are pressed and fixed on the motor shaft by external pressure. The processing efficiency is slow, the installation accuracy of the bearings and the motor shaft is low, and the problem of missing spacers is easy to occur.

[0003] Therefore, in view of the shortcomings of the prior art, it is necessary to design an automatic motor bearing press to solve the above problems.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solution of the present invention and facilitating the understanding of those skilled in the art. It cannot be considered that the above contents are well known to those skilled in the art simply because they are explained in the background technology of the present invention. Summary of the invention

[0005] In order to overcome the deficiencies in the above-mentioned prior art, the purpose of the present invention is to disclose an automatic motor bearing press machine, which increases the installation efficiency and accuracy of motor bearings through automatic loading and installation of spacers and automatic loading and pressing of bearings, and avoids the problem of missing spacers during the installation process.

[0006] The present invention discloses an automatic press-fitting machine for motor bearings, comprising a frame, a motor rotor conveying line is arranged on the frame along the horizontal X-axis direction, a spacer press-fitting unit and a bearing press-fitting unit are arranged in sequence above the motor rotor conveying line along the conveying direction thereof, wherein: An axial positioning seat is provided on the motor rotor conveying line along the Y-axis direction, through which the motor is oriented and fixed, so as to facilitate the removal and placement of the motor in subsequent processing.

[0007] The spacer pressing unit includes a spacer mounting frame, on which a first material picking robot is provided, and the first material picking robot is used to quickly grab the motor on the motor rotor conveyor line; annular negative pressure suction nozzles for picking up and placing spacers are provided on both sides of the first material picking robot, and the annular negative pressure suction nozzle is movably connected to the spacer mounting frame along the Y-axis direction, and the negative pressure suction nozzle is used to replace manual work to pick up and place the spacer, and the automatic installation of the spacer is realized in cooperation with the Y-axis moving mechanism; a spacer feeding mechanism is provided under the annular negative pressure suction nozzle, and the output end of the annular negative pressure suction nozzle can be connected to the first material picking robot and the spacer feeding mechanism respectively by rotation, so as to realize automatic feeding of the spacer.

[0008] The bearing press-fitting unit includes a bearing mounting frame, and a first bearing locating seat is fixedly provided on one side of the bearing mounting frame for locating the bearing to be installed. A second material-grabbing manipulator that can move along the Y-axis direction is provided on one side of the first bearing locating seat, which can quickly pick up and place the motor, and at the same time can drive the motor so that its shaft end is automatically pre-assembled and docked with the bearing in the first bearing locating seat; a second bearing locating seat that can move along the Y-axis direction is provided at the relative position between the bearing mounting frame and the first bearing locating seat, which is also used to position the bearing to be installed, and at the same time, the second bearing locating seat can complete the automatic pre-assembly and press-fitting operation of the motor and the bearing by moving along the Y-axis direction. One side of the first bearing locating seat and the second bearing locating seat are both connected to a bearing feeding mechanism for automatically feeding the bearings thereto.

[0009] The preferred technical solution is as follows: rotating shafts are provided on both sides of the annular negative pressure suction nozzle, a Y-axis moving mechanism is provided on the spacer mounting frame, and the rotating shaft is rotatably connected to the output end of the Y-axis moving mechanism; a transmission gear is provided on the rotating shaft, and the output end of the Y-axis moving mechanism is connected to the first cylinder, and the output end of the first cylinder is provided with a rack, and the rack is meshingly connected to the transmission gear. The rack and the gear are driven by the first cylinder to move, thereby realizing the change of the direction of the annular negative pressure suction nozzle. The structure is simple and the energy consumption is low.

[0010] The preferred technical solution: the spacer feeding mechanism includes a first lifting drive arranged at the output end in the vertical direction, the output end of the first lifting drive is connected to a lifting frame, the lifting frame is detachably provided with a guide rod with a spacer on the outer periphery which can be sleeved in the vertical direction, the outer periphery of the guide rod is slidably connected with a lifting sleeve, and the lifting sleeve is driven by an externally connected second lifting drive to slide up and down along the guide rod. When in use, the spacers are sleeved on the guide rod in batches. When the spacers need to be fed, the guide rod is driven by the first lifting drive to move up and dock with the annular negative pressure suction nozzle, and then the lifting sleeve pushes the spacer on the guide rod to move up and attach to the annular negative pressure suction nozzle to complete automatic feeding.

[0011] Optimal technical solution: The lifting frame is provided with a placement groove and a clamp for placing the guide rod, so that the disassembly and assembly of the guide rod is more convenient and it is convenient to replenish the spacers on the guide rod in batches.

[0012] Preferred technical solution: The output end of the Y-axis moving mechanism can be driven by a motor to drive the lead screw as power output.

[0013] Preferred technical solution: The output end of the Y-axis moving mechanism can also be used as power output through a cylinder.

[0014] The preferred technical solution: There are two groups of bearing feeding mechanisms, which are connected to the first bearing locating seat and the second bearing locating seat respectively, including a feeding plate, and a lifting partition arranged along the horizontal Y-axis direction is arranged above the feeding plate. After the lifting partition is lowered, it encloses a cavity with the feeding plate that can only hold one row of bearings. The cavity can be used to restrict the rolling of the bearings placed vertically side by side. A feeding slide connected to the bearing press-fitting unit is arranged on one side of the cavity, and a feeding slider is arranged in the feeding slide; a push plate mechanism that can push the bearing in the cavity along the Y-axis direction is arranged above the cavity, and the bearings in the cavity can be pressed into the feeding slide one by one.

[0015] Preferred technical solution: A propulsion drive is provided on one side of the feeding slide, and the output direction of the propulsion drive is consistent with the setting direction of the feeding slide, which is used to push the bearing in the feeding slide to the bearing press unit.

[0016] Optimal technical solution: The motor rotor conveyor line is provided with incoming material detection photoelectric, spacer detection photoelectric and bearing detection photoelectric in sequence to perform real-time detection of motor incoming material, spacer installation and bearing installation.

[0017] Due to the application of the above technical solution, the automatic press-fitting machine for motor bearings of the present invention has the following beneficial effects: (1) The present invention utilizes a rotatable annular negative pressure suction nozzle to replace manual labor for quickly taking, placing and installing the spacer.

[0018] (2) The present invention designs an automatic positioning and pressing mechanism for bearings, which uses a robot to replace manual labor to quickly press the bearings, thereby improving the operation accuracy and efficiency.

[0019] (3) The present invention provides a spacer detection photoelectric device on the conveying line at the rear side of the spacer pressing unit to avoid missing spacers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an automatic press-fitting machine for motor bearings of the present invention; Figure 2 It is a structural schematic diagram of the motor rotor conveying line in the present invention; Figure 3 It is a structural schematic diagram of the separator pressing unit in the present invention; Figure 4 It is a structural schematic diagram of the spacer feeding mechanism of the present invention; Figure 5 It is a structural schematic diagram of the bearing press-fitting unit in the present invention; Figure 6 It is an exploded view of the bearing feeding mechanism in the present invention.

[0021] In the above drawings, 100, frame; 1, motor rotor conveyor line; 11, axial positioning seat; 12, incoming material detection photoelectric; 13, spacer detection photoelectric; 14, bearing detection photoelectric; 2, spacer press-fitting unit; 21, spacer mounting frame; 22, first material picking manipulator; 23, annular negative pressure suction nozzle; 23a, rotating shaft; 23b, transmission gear; 24, Y-axis moving mechanism; 25, first cylinder; 25a, rack; 3, bearing press-fitting unit; 31, bearing mounting frame; 32, first Bearing locating seat; 33, second material picking robot; 34, second bearing locating seat; 4, spacer feeding mechanism; 41, first lifting drive; 42, lifting frame; 42a, placement groove; 42b, clamp; 43, guide rod; 44, top material sliding sleeve; 45, second lifting drive; 5, bearing feeding mechanism; 51, feeding plate; 52, lifting partition; 53, feeding slide; 54, feeding slider; 54a, propulsion drive; 55, push plate mechanism; 6, spacer; 7, bearing; 8, motor. DETAILED DESCRIPTION

[0022] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0023] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They 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 cannot be understood as a limitation on the present invention. In addition, terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but may be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be an indirect connection through an intermediate medium, it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example: like Figure 1As shown, an automatic motor bearing press-fitting machine disclosed in the present invention comprises a frame 100, a motor rotor conveying line 1 is arranged on the frame 100 along the horizontal X-axis direction, and a spacer press-fitting unit 2 and a bearing press-fitting unit 3 are arranged in sequence above the motor rotor conveying line 1 along its conveying direction. The main components of the present invention are described in detail below: like Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, an axial positioning seat 11 is provided on the motor rotor conveyor line 1 along the Y-axis direction; the rotation axis of the motor 8 is placed in a direction perpendicular to the conveying direction of the motor rotor conveyor line 1, which is convenient for taking and placing the motor 8 in subsequent processing. The motor rotor conveyor line 1 is provided with a material detection photoelectric 12 for detecting whether there is a motor 8 on the axial positioning seat 11, a spacer detection photoelectric 13 for detecting whether a spacer 6 is installed on the motor 8, and a bearing detection photoelectric 14 for detecting whether a bearing 7 is installed.

[0025] like Figure 1 , Figure 3 and Figure 4 As shown, the spacer pressing unit 2 includes a spacer mounting frame 21, on which a first material picking robot 22 is provided for quickly picking up and placing the motor 8; an annular negative pressure suction nozzle 23 is provided on both sides of the left and right sides of the first material picking robot 22, and the annular negative pressure suction nozzle 23 picks up and places the spacer 6 by negative pressure adsorption, and the annular negative pressure suction nozzle 23 is movably connected to the spacer mounting frame 21 along the Y-axis direction.

[0026] like Figure 1 , Figure 3 and Figure 4 As shown, the annular negative pressure suction nozzle 23 is provided with a rotating shaft 23a on both sides, and the spacer mounting frame 21 is provided with a Y-axis moving mechanism 24, and the rotating shaft 23a is rotatably connected with the output end of the Y-axis moving mechanism 24; the rotating shaft 23a is provided with a transmission gear 23b, and the output end of the Y-axis moving mechanism 24 is connected with a first cylinder 25, and the output end of the first cylinder 25 is provided with a rack 25a, and the rack 25a is meshed and connected with the transmission gear 23b, and the first cylinder 25 controls the transmission gear 23b and the rack 25a to cooperate to realize the free rotation of the annular negative pressure suction nozzle 23. It should be noted that the above description is only exemplary and not restrictive. In this embodiment, the output end of the Y-axis moving mechanism 24 is driven by a motor to drive a screw rod as a power output; but in other embodiments, the output end of the Y-axis moving mechanism 24 is output by a cylinder as a power output.

[0027] like Figure 1 , Figure 5 and Figure 6As shown, the bearing press-fitting unit 3 includes a bearing mounting frame 31, a first bearing locating seat 32 is fixedly provided on one side of the bearing mounting frame 31, a second material-retrieving manipulator 33 that can move along the Y-axis direction is provided on one side of the first bearing locating seat 32, a second bearing locating seat 34 that can move along the Y-axis direction is provided at the relative position between the bearing mounting frame 31 and the first bearing locating seat 32, and a bearing feeding mechanism 5 is connected to one side of the first bearing locating seat 32 and the second bearing locating seat 34. During the press-fitting process of the bearing 7, the first bearing locating seat 32 and the second bearing locating seat 34 respectively position the incoming bearings 7 on both sides, the second material-retrieving manipulator 33 drives the motor 8 to move toward the first bearing locating seat 32 to realize the pre-installation of the bearing 7 there, and then the second bearing locating seat 34 moves toward the direction of the first bearing locating seat 32 to complete the pre-installation of the bearing 7 at the other end of the motor 8, and finally the second bearing locating seat 34 continues to move toward the side of the first bearing locating seat 32 to complete the press-fitting operation.

[0028] like Figure 1 , Figure 3 and Figure 4 As shown, the spacer feeding mechanism 4 is arranged below the annular negative pressure suction nozzle 23, and its structure includes a first lifting drive 41, the output end of the first lifting drive 41 is arranged in the vertical direction and connected to a lifting frame 42, and a guide rod 43 with a spacer 6 on the outer periphery is detachably provided on the lifting frame 42 in the vertical direction, and a material ejection sliding sleeve 44 is slidably connected to the outer periphery of the guide rod 43, and the material ejection sliding sleeve 44 can slide up and down along the guide rod 43 through the external second lifting drive 45; the lifting frame 42 is provided with a placement groove 42a and a clamp 42b for accommodating the guide rod 43. The output end of the annular negative pressure suction nozzle 23 can be connected to the first material taking manipulator 22 and the spacer feeding mechanism 4 respectively by rotation.

[0029] like Figure 1 , Figure 5 and Figure 6 As shown, the bearing feeding mechanism 5 has two groups, which are connected to the first bearing locating seat 32 and the second bearing locating seat 34 respectively, including a feeding plate 51, and a lifting partition 52 arranged along the horizontal Y-axis direction is arranged above the feeding plate 51. After the lifting partition 52 is lowered, it and the feeding plate are combined to form a cavity that can only hold one row of bearings 7. A feeding slide 53 connected to the bearing press-fitting unit 3 is arranged on one side of the cavity, and a feeding slider 54 is arranged in the feeding slide 53; a push plate mechanism 55 that can push the bearing 7 in the cavity along the Y-axis direction is arranged above the cavity. A propulsion drive 54a is arranged on one side of the feeding slider 54, and the output direction of the propulsion drive 54a is consistent with the setting direction of the feeding slide 53.

[0030] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An automatic press-fitting machine for motor bearings, comprising a frame (100), wherein a motor rotor conveying line (1) is arranged on the frame (100) along a horizontal X-axis direction, and characterized in that: A spacer pressing unit (2) and a bearing pressing unit (3) are sequentially arranged above the motor rotor conveyor line (1) along its conveying direction, wherein: The motor rotor conveyor line (1) is provided with an axial positioning seat (11) along the Y-axis direction; The spacer pressing unit (2) comprises a spacer mounting frame (21), a first material picking robot (22) is arranged on the spacer mounting frame (21), and an annular negative pressure suction nozzle (23) for picking up and placing the spacer (6) is arranged on both the left and right sides of the first material picking robot (22), and the annular negative pressure suction nozzle (23) is movably connected to the spacer mounting frame (21) along the Y-axis direction; a spacer feeding mechanism (4) is arranged below the annular negative pressure suction nozzle (23), and the output end of the annular negative pressure suction nozzle (23) can be connected to the first material picking robot (22) and the spacer feeding mechanism (4) respectively by rotation; The bearing press-fitting unit (3) comprises a bearing mounting frame (31), a first bearing locating seat (32) being fixedly arranged on one side of the bearing mounting frame (31), a second material taking manipulator (33) movable along the Y-axis direction being arranged on one side of the first bearing locating seat (32), a second bearing locating seat (34) movable along the Y-axis direction being arranged at a position relative to the bearing mounting frame (31) and the first bearing locating seat (32), and a bearing feeding mechanism (5) being connected to one side of each of the first bearing locating seat (32) and the second bearing locating seat (34).

2. The automatic motor bearing press machine according to claim 1, characterized in that: Rotating shafts (23a) are provided on both sides of the annular negative pressure suction nozzle (23); a Y-axis moving mechanism (24) is provided on the spacer mounting frame (21); the rotating shaft (23a) is rotatably connected to the output end of the Y-axis moving mechanism (24); a transmission gear (23b) is provided on the rotating shaft (23a); the output end of the Y-axis moving mechanism (24) is connected to a first cylinder (25); a rack (25a) is provided at the output end of the first cylinder (25); the rack (25a) is meshingly connected to the transmission gear (23b).

3. The automatic motor bearing press-fitting machine according to claim 2, characterized in that: The spacer feeding mechanism (4) comprises a first lifting drive (41) whose output end is arranged in a vertical direction, the output end of the first lifting drive (41) is connected to a lifting frame (42), a guide rod (43) which is detachably provided in the vertical direction and on which a spacer (6) can be sleeved, the outer periphery of which is provided on the lifting frame (42), a material ejecting sliding sleeve (44) is slidably connected to the outer periphery of the guide rod (43), and the material ejecting sliding sleeve (44) can slide up and down along the guide rod (43) by being driven by an externally connected second lifting drive (45).

4. The automatic motor bearing press-fitting machine according to claim 3 is characterized in that: The lifting frame (42) is provided with a placement groove (42a) and a clamp (42b) for placing the guide rod (43).

5. The automatic motor bearing press-fitting machine according to claim 4, characterized in that: The output end of the Y-axis moving mechanism (24) drives the screw rod through the motor as power output.

6. The automatic motor bearing press-fitting machine according to claim 4, characterized in that: The output end of the Y-axis moving mechanism (24) outputs power through a cylinder.

7. The automatic motor bearing press machine according to claim 1, characterized in that: The bearing loading mechanism (5) has two groups, which are respectively connected to the first bearing positioning seat (32) and the second bearing positioning seat (34), and include a loading plate (51). A lifting partition (52) is provided above the loading plate (51) along the horizontal Y-axis direction. After the lifting partition (52) is lowered, it and the loading plate enclose a cavity that can only hold one row of bearings (7). A loading slideway (53) connected to the bearing press-fitting unit (3) is provided on one side of the cavity. A loading slider (54) is provided in the loading slideway (53); a push plate mechanism (55) is provided above the cavity, which can push the bearing (7) in the cavity along the Y-axis direction.

8. The automatic motor bearing press-fitting machine according to claim 1, characterized in that: A propulsion drive (54a) is provided on one side of the feeding slide block (54), and the output direction of the propulsion drive (54a) is consistent with the setting direction of the feeding slideway (53).

9. The automatic motor bearing press-fitting machine according to claim 1, characterized in that: The motor rotor conveyor line (1) is provided with an incoming material detection photoelectric device (12), a spacer detection photoelectric device (13) and a bearing detection photoelectric device (14) in sequence.

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