Mounting device for motor rotor magnets

Abstract

The application provides a motor rotor magnetic sheet mounting device, which comprises a connecting assembly (10), a shell (20), a push rod (30), a pair of magnetic sheet guides (40), a pair of magnetic sheet clamps (50), a pair of elastic members (60) and a pushing mechanism (70). The connecting assembly can be fixed to a robot. The shell is fixed to the connecting assembly and is formed with a push rod hole (21). One end of the push rod is formed with a magnetic attraction part and is movably arranged in the push rod hole. The magnetic sheet guides are arranged on the shell at the opening of the push rod hole. Each magnetic sheet clamp is movably arranged on the shell. Each elastic member correspondingly applies an elastic force to the shell and the magnetic sheet clamp. The pushing mechanism can drive the push rod to move. The mounting device uses the magnetic sheet clamps and the magnetic sheet guides to ensure the stability and accurate guidance and positioning of the magnetic sheet during installation, and cooperates with the robot through the connecting assembly and the pushing mechanism to realize the automatic, efficient and high-precision installation of the magnetic sheet.

Description

Technical Field

[0001] This invention relates to the field of motor assembly, and in particular to a device for mounting motor rotor magnets. Background Technology

[0002] Electric motors generally consist of a rotor and a stator. Coils are wound on the stator, and magnetic sheets are attached to the rotor. Currently, there are three main methods for attaching magnetic sheets to the rotor: manual attachment, attachment using ordinary clamps, and attachment using an axial pushing magnetic sheet machine. However, each of these methods suffers from problems such as low attachment efficiency, low attachment accuracy, and complex structure and high investment cost. Summary of the Invention

[0003] The purpose of this invention is to provide an installation device for motor rotor magnets that can achieve automated installation of magnets with high efficiency and high precision.

[0004] This invention provides an installation device for motor rotor magnets, comprising a connecting assembly, a housing, a push rod, a pair of magnet guides, a pair of magnet grippers, a pair of elastic members, and a pushing mechanism. The connecting assembly can be fixed to a robot. The housing is fixed to the connecting assembly, and the housing has a push rod hole formed along a first direction. The push rod is movably disposed in the push rod hole along the first direction between an extended position and a retracted position. A magnetic attraction portion corresponding to the shape of the magnet is formed at one end of the push rod along the first direction, and the magnet can be adsorbed onto the magnetic attraction portion. The magnet guides are disposed at the opening of the push rod hole on the housing, and when the push rod moves from the retracted position to the extended position, the magnet guides can prevent the magnet adsorbed onto the magnetic attraction portion from moving in at least one direction perpendicular to the first direction. Each magnet gripper is movably disposed in the housing, and when the push rod is in the retracted position, a pair of magnet grippers located at a blocking position can prevent the magnet adsorbed onto the push rod from detaching from the magnetic attraction portion along the first direction. Each elastic element applies an elastic force to the housing and the magnetic claw in a corresponding manner, causing the magnetic claw to move towards the blocking position. The pushing mechanism can drive the push rod to move in the first direction, and when driving the push rod, it can overcome the elastic force of the elastic elements and push a pair of magnetic claws away from the blocking position through the magnetic pieces.

[0005] The motor rotor magnetic sheet installation device provided by the present invention uses magnetic sheet grippers to ensure that the magnetic sheet adsorbed on the push rod will not be adsorbed by other components and thus shifted, and uses magnetic sheet guides to ensure stable and precise guidance during magnetic sheet installation, thereby achieving high-efficiency and high-precision automated installation of magnetic sheets.

[0006] In another illustrative embodiment of the motor rotor magnet mounting device, the pushing mechanism is a cylinder.

[0007] In another illustrative embodiment of the motor rotor magnet mounting device, a limiting elongated hole extending in a first direction is formed on the push rod. The motor rotor magnet mounting device also includes a positioning rod disposed in the housing and passing through the limiting elongated hole to limit the range of movement of the push rod in the first direction.

[0008] In another illustrative embodiment of the motor rotor magnet mounting device, each magnet gripper is rotatably mounted on the housing about an axis parallel to a third direction. The third direction is perpendicular to the first direction. The elastic element is a compression spring that abuts against the magnet gripper and the housing respectively. This prevents the magnets from freely adhering and ensures the mounting accuracy of the magnets.

[0009] In another illustrative embodiment of the motor rotor magnet mounting device, a pair of magnet guides are spaced apart along a second direction perpendicular to the first direction. Each magnet guide has a guide surface perpendicular to the second direction. The two guide surfaces of the pair of magnet guides face each other and the distance between them is equal to the width of the magnet. When the push rod moves from the retracted position to the extended position, it can push the attracted magnet out from between the two guide surfaces. This further ensures the mounting accuracy of the magnet.

[0010] In another illustrative embodiment of the motor rotor magnetic sheet mounting device, each magnetic sheet guide extends from one end near the housing to one end away from the housing along a first direction, and the width of each magnetic sheet guide gradually decreases along a second direction.

[0011] In another illustrative embodiment of the motor rotor magnet mounting device, the connecting assembly includes a connector and a locating pin. The connector is used to connect the robot. The connector has a groove into which the housing can slide. The locating pin passes through the connector to fix the housing to the groove. This allows for easy adjustment of the mounting device to accommodate different types of motor rotors.

[0012] In another illustrative embodiment of the motor rotor magnet mounting device, the housing includes a slider, several guide posts, and a housing body. The slider is capable of sliding into a groove. Several guide posts are disposed at one end of the slider and extend along a first direction. The housing body is movably disposed on the several guide posts along the first direction, and the housing body can move to an initial position furthest from the slider. Several compression springs are disposed between the housing body and the slider, and the elastic force applied by the compression springs to the slider and the housing body causes the housing body to move toward the initial position. This prevents misalignment during magnet mounting and ensures mounting accuracy.

[0013] In another illustrative embodiment of the motor rotor magnetic plate mounting device, the magnetic plate grippers are made of copper-nickel alloy. The push rod is made of steel. The housing and the guide components for each magnetic plate are all made of stainless steel. Attached Figure Description

[0014] The following figures are for illustrative purposes only and do not limit the scope of the invention.

[0015] Figure 1 This is a schematic diagram of one embodiment of the mounting device for motor rotor magnets.

[0016] Figure 2 This is an exploded structural diagram of the mounting device for the motor rotor magnets.

[0017] Figure 3 This is a partial cross-sectional view of the motor rotor magnet mounting device in the retracted position.

[0018] Figure 4 This is a partial cross-sectional view of the mounting device for the motor rotor magnets in the extended position.

[0019] Figure 5 For display Figure 1 The illustration shows a usage scenario for the motor rotor magnet mounting device.

[0020] Label Explanation

[0021] 10 connection components

[0022] 20 housing

[0023] 21 push rod hole

[0024] 22 sliders

[0025] 24 guide columns

[0026] 25 compression spring

[0027] 26 Shell Body

[0028] 30 putter

[0029] 32 magnetic parts

[0030] 33 Limiting Long Hole

[0031] 40 magnetic sheet guide

[0032] 41 guide surface

[0033] 50 magnetic plate gripper

[0034] 60 elastic element

[0035] 70 push organizations

[0036] 80 positioning rod

[0037] 90 motor rotor

[0038] 100 magnetic sheets

[0039] D1 First Direction

[0040] D2 Second Direction

[0041] D3 third direction Detailed Implementation

[0042] To provide a clearer understanding of the technical features, objectives, and effects of the invention, specific embodiments of the invention are now described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate components with the same or similar structures but the same function.

[0043] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0044] In this document, terms such as "first" and "second" do not indicate their importance or order, but are only used to distinguish them to facilitate the description of the document.

[0045] To keep the drawings simple, each drawing only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product.

[0046] Figure 1 This is a schematic diagram of one embodiment of the mounting device for motor rotor magnets. Figure 2 This is an exploded view of the mounting assembly for the motor rotor magnets. (For example...) Figure 1 and Figure 2 As shown, the motor rotor magnetic sheet mounting device includes a connecting assembly 10, a housing 20, a push rod 30, a pair of magnetic sheet guides 40, a pair of magnetic sheet grippers 50, a pair of elastic members 60, and a pushing mechanism 70. The connecting assembly 10 can be fixed to a robot (not shown in the figure), and the robot can drive the mounting device to move between the material picking position and the motor rotor 90.

[0047] Figure 3 This is a partial cross-sectional view of the motor rotor magnet mounting device in the retracted position. Figure 4 This is a partial cross-sectional view of the mounting device for the motor rotor magnets in the extended position. (Refer to...) Figure 3 and Figure 4The housing 20 is fixed to the connecting assembly 10, and a push rod hole 21 is formed in the housing 20 along a first direction D1. A push rod 30 is movably disposed in the push rod hole 21 along the first direction D1 between an extended position and a retracted position. A magnetic attraction portion 32 corresponding to the shape of the magnetic sheet 100 is formed at one end of the push rod 30 along the first direction D1. When the robot drive mounting device is in the material-picking position, the push rod 30 extends to the extended position; the push rod 30 is made of steel, and the magnetic sheet 100 can be adsorbed onto the magnetic attraction portion 32. When the robot drive mounting device moves towards the motor rotor 90, the push rod 30 is in the retracted position. Figure 5 For display Figure 1 The illustration shows a scenario where the mounting device for the motor rotor magnets is used. (Refer to...) Figure 5 When the magnetic sheet 100 is installed in the motor rotor magnetic sheet mounting device, the housing 20 moves above the motor rotor 90, and the push rod 30 extends to the extended position. At this time, the magnetic sheet 100 is attracted to the motor rotor 90, completing the installation. In this illustrative embodiment, the housing 20 is made of stainless steel to prevent interference with the movement of the magnetic sheet 100 and to ensure the stability and service life of the mounting device. The area of ​​the magnetic attraction part 32 of the push rod 30 is much smaller than the surface area of ​​the magnetic sheet 100, thereby ensuring that the magnetic sheet 100 can be smoothly attached to the motor rotor 90.

[0048] Reference Figure 3 and Figure 4 A magnetic sheet guide 40 is disposed at the opening of the push rod hole 21 on the housing 20. The magnetic sheet guide 40 prevents the magnetic sheet 100 adsorbed on the magnetic suction part 32 from moving in at least one direction perpendicular to the first direction D1 when the push rod 30 moves from the retracted position to the extended position. Each magnetic sheet guide 40 is made of stainless steel to prevent interference with the movement of the magnetic sheet 100. In this illustrative embodiment, a pair of magnetic sheet guides 40 are spaced apart along a second direction D2 perpendicular to the first direction D1. Each magnetic sheet guide 40 has a guide surface 41 perpendicular to the second direction D2. The two guide surfaces 41 of the pair of magnetic sheet guides 40 are opposite each other and the distance between them is equal to the width of the magnetic sheet 100. When the push rod 30 moves from the retracted position to the extended position, it can push the adsorbed magnetic sheet 100 out between the two guide surfaces 41. This ensures the installation accuracy of the magnetic sheet 100 and prevents the magnetic sheet 100 from shifting during installation.

[0049] Reference Figure 2 , Figure 3 and Figure 4Each magnetic claw 50 is movably disposed on the housing 20. When the push rod 30 is in the retracted position, a pair of magnetic claws 50, each in a blocking position, can prevent the magnetic piece 100 adsorbed on the push rod 30 from detaching from the magnetic attraction part 32 along the first direction D1. Each elastic element 60 is a compression spring that abuts against the magnetic claw 50 and the housing 20 respectively. Each elastic element 60 applies an elastic force to the housing 20 and the magnetic claw 50 in a corresponding manner, causing the magnetic claw 50 to move towards the blocking position. (Refer to...) Figure 4 The pushing mechanism 70 can drive the push rod 30 to move along the first direction D1, and when driving the push rod 30, it can overcome the elastic force of the elastic member 60, pushing the pair of magnetic plate claws 50 away from the blocking position through the magnetic plate 100. This prevents the magnetic plate 100 from detaching from the magnetic suction part 32 due to free adsorption and causing displacement during installation. In this illustrative embodiment, each magnetic plate claw 50 is made of copper-nickel alloy to improve the wear resistance and rigidity of the installation device.

[0050] The motor rotor magnetic sheet installation device provided by the present invention uses magnetic sheet guide 40 to ensure the stability and precise guidance of magnetic sheet 100 during installation, and uses magnetic sheet gripper 50 to ensure that the magnetic sheet 100 adsorbed on the magnetic suction part 32 of push rod 30 will not shift due to free adsorption, thereby realizing high-efficiency and high-precision automated installation of magnetic sheet 100.

[0051] Reference Figures 2 to 4 In this illustrative embodiment, the pushing mechanism 70 is a cylinder. A limiting elongated hole 33 extending along the first direction D1 is formed on the push rod 30. The mounting device for the motor rotor magnet also includes a positioning rod 80. The positioning rod 80 is fixedly disposed inside the housing 20 and passes through the limiting elongated hole 33 to limit the range of movement of the push rod 30 in the first direction D1. This simple structure enables precise displacement of the push rod 30.

[0052] Reference Figure 3 and Figure 4 In this illustrative embodiment, each magnetic plate gripper 50 is rotatably mounted on the housing 20 about an axis parallel to a third direction D3. Specifically, a rotating shaft structure can be used, with the magnetic plate gripper 50 passing through the shaft and connected to the housing 20. This allows for the movement of each magnetic plate gripper 50 with a simple structure.

[0053] Reference Figure 3 and Figure 4 In this illustrative embodiment, each magnetic sheet guide 40 extends from one end near the housing 20 to the end away from the housing 20 along the first direction D1, and the width of each magnetic sheet guide 40 gradually decreases along the second direction D2. Specifically, the cross-section of each magnetic sheet guide 40 is triangular. This reduces the volume of the magnetic sheet guide 40 and decreases interference with the motor rotor 90 when the magnetic sheet 100 is installed.

[0054] like Figure 2 As shown in this illustrative embodiment, the connecting assembly 10 includes a connector 12 and a positioning pin 16. The connector 12 is used to connect the robot to achieve automated installation of the mounting device and improve installation efficiency. The connector 12 has a slide groove 13 into which the housing 20 can slide, and the positioning pin 16 passes through the connector 12 to fix the housing 20 to the slide groove 13. This allows for convenient replacement of the corresponding mounting device according to different motor rotors 90, improving efficiency while saving manufacturing costs.

[0055] In this illustrative embodiment, reference is made to Figure 1 and Figure 2 The housing 20 includes a slider 22, several guide posts 24, and a housing body 26. The slider 22 can slide into the groove 13. The several guide posts 24 are disposed at one end of the slider 22 along a first direction D1 and extend along the first direction D1. The housing body 26 is movably disposed on the several guide posts 24 along the first direction D1, and the housing body 26 can move to an initial position farthest from the slider 22. Several compression springs 25 are disposed between the housing body 26 and the slider 22. The elastic force applied by the compression springs 25 to the slider 22 and the housing body 26 causes the housing body 26 to move toward the initial position. This ensures that the mounting device can be flexibly connected to the motor rotor 90, and the magnetic sheet guide 40 can abut against the motor rotor 90 to avoid gaps between them, which would cause the magnetic sheet 100 to shift during installation.

[0056] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0057] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent implementation schemes or modifications made without departing from the spirit of the present invention, such as combinations, divisions or repetitions of features, should be included within the scope of protection of the present invention.

Claims

1. A mounting device for motor rotor magnetic sheets, used to attach magnetic sheets to a motor rotor, characterized in that, include: A connecting component (10) that can be fixed to the robot; A housing (20) is fixed to the connecting assembly (10), the housing (20) having a push rod hole (21) formed along a first direction (D1); A push rod (30) is movably disposed in the push rod hole (21) along the first direction (D1) between an extended position and a retracted position. The push rod (30) has a magnetic attraction part (32) at one end along the first direction (D1) that corresponds to the shape of the magnetic sheet. The magnetic sheet can be attached to the magnetic attraction part (32). A pair of magnetic sheet guides (40) are provided at the opening of the push rod hole (21) on the housing (20). The magnetic sheet guides (40) can prevent the magnetic sheet attracted to the magnetic suction part (32) from moving in a direction perpendicular to the first direction (D1) when the push rod (30) moves from the retracted position to the extended position. A pair of magnetic claws (50) are movably disposed in the housing (20). When the push rod (30) is in the retracted position, the pair of magnetic claws (50) in a blocking position can prevent the magnetic piece adsorbed on the push rod (30) from detaching from the magnetic suction part (32) along the first direction (D1). A pair of elastic elements (60), each of the elastic elements (60) applies an elastic force to the housing (20) and the magnetic plate gripper (50) in a one-to-one correspondence, causing the magnetic plate gripper (50) to move toward the blocking position; as well as A pushing mechanism (70) is capable of driving the push rod (30) to move along the first direction (D1), and when driving the push rod (30), it is capable of overcoming the elastic force of the elastic member (60), and pushing a pair of magnetic plate claws (50) away from the blocking position in the opposite direction of the elastic force applied by the elastic member (60) through the magnetic plate; wherein, A pair of magnetic sheet guides (40) are spaced apart along a second direction (D2) perpendicular to the first direction (D1). Each magnetic sheet guide (40) has a guide surface (41) perpendicular to the second direction (D2). The two guide surfaces (41) of the pair of magnetic sheet guides (40) are opposite each other and the distance between them is equal to the width of the magnetic sheet. When the push rod (30) moves from the retracted position to the extended position, it can push the adsorbed magnetic sheet out between the two guide surfaces (41).

2. The mounting device for motor rotor magnets as described in claim 1, characterized in that, The pushing mechanism (70) is a cylinder.

3. The mounting device for motor rotor magnets as described in claim 2, characterized in that, The push rod (30) has a limiting elongated hole (33) extending along the first direction (D1). The mounting device for the motor rotor magnet also includes a positioning rod (80), which is disposed on the housing (20) and passes through the limiting elongated hole (33) to limit the range of motion of the push rod (30) in the first direction (D1).

4. The mounting device for motor rotor magnets as described in claim 1, characterized in that, Each of the magnetic sheet grippers (50) is rotatably disposed on the housing (20) about an axis parallel to a third direction (D3), the third direction (D3) being perpendicular to the first direction (D1), and the elastic element (60) being a compression spring abutting against the magnetic sheet grippers (50) and the housing (20) respectively.

5. The mounting device for motor rotor magnets as described in claim 1, characterized in that, Each magnetic sheet guide (40) extends from one end near the housing (20) to one end away from the housing (20) along the first direction (D1), and the width of each magnetic sheet guide (40) gradually decreases along the second direction (D2).

6. The mounting device for motor rotor magnets as described in claim 1, characterized in that, The connection component (10) includes: A connector (12) for connecting the robot, the connector (12) having a groove (13) into which the housing (20) can slide, and A positioning pin (16) is provided through the connector (12) to fix the housing (20) to the groove (13).

7. The mounting device for motor rotor magnets as described in claim 6, characterized in that, The housing (20) includes: A slider (22) is capable of sliding into the groove (13). Several guide posts (24) are disposed at one end of the slider (22) and extend along the first direction (D1), and A housing body (26) is movably disposed on a plurality of the guide posts (24) along the first direction (D1), and the housing body (26) is capable of moving to an initial position furthest from the slider (22). A plurality of compression springs (25) are disposed between the housing body (26) and the slider (22). The elastic force applied by the plurality of compression springs (25) to the slider (22) and the housing body (26) causes the housing body (26) to move toward the initial position.

8. The mounting device for motor rotor magnets as described in claim 1, characterized in that, Each of the magnetic sheet grippers (50) is made of copper-nickel alloy, the push rod (30) is made of steel, and the housing (20) and each of the magnetic sheet guides (40) are made of stainless steel.

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