A structure for synchronously rotating a motor housing

Abstract

The utility model relates to a structure with motor shell synchronous rotation is driven, including rotating board, the first thimble of detachable connection on rotating board, the second thimble of opposite setting, the motor of setting between two groups of thimbles and drive the limiting piece of rotating board with motor synchronous rotation, rotating board can rotate, the second thimble can move close or far from motor, the motor can be located between the first thimble with the second thimble rotates, the rotating board is equipped with a plurality of connecting holes, the limiting piece can be screwed in the connecting hole, the outside of motor is provided with the clamping groove, the clamping groove with the limiting piece corresponds, when the limiting piece is located in the clamping groove, the rotating board with motor synchronous rotation. Solved chuck clamping easy deformation, poor adaptation, thimble friction transmission easy sliding, poor limit, low precision.

Description

Technical Field

[0001] This utility model relates to the field of motor housings, and in particular to a structure that drives the motor housing to rotate synchronously. Background Technology

[0002] In existing technologies, the structure used to drive the motor housing rotation on four-axis machine tools mostly adopts chuck clamping or friction transmission with ejector pins. However, chuck clamping has obvious drawbacks: on the one hand, the clamping force is difficult to control precisely; if it is too large, it can easily cause plastic deformation of the motor housing (especially thin-walled housings), while if it is too small, it cannot guarantee rotational synchronization, resulting in deviations in the perpendicularity of the machined plane; on the other hand, for motors of different sizes, it is necessary to frequently change the chuck jaws or adjust the chuck parameters, which is cumbersome and has poor adaptability.

[0003] While the structure employing a pin-and-friction drive can reduce clamping deformation, it relies on the friction between the pin and the motor housing to transmit torque. Under cutting forces, relative slippage can easily occur, leading to lag or unstable rotation of the motor housing, directly affecting the perpendicularity accuracy of the machined plane to the centerline of the rotation axis. Furthermore, the traditional structure lacks precise positioning of the motor housing, making the motor prone to radial offset during rotation, further exacerbating machining errors and failing to meet the production requirements of high-precision motors. Utility Model Content

[0004] This application provides a structure that drives the motor housing to rotate synchronously, solving the problems of easy deformation and poor fit of chuck clamping in the prior art; easy slippage and poor positioning of ejector pin friction transmission; and low precision.

[0005] The technical solutions adopted in the embodiments of this application are as follows.

[0006] A structure for synchronously rotating a motor housing includes a rotating plate, a first ejector pin detachably connected to the rotating plate, a second ejector pin disposed opposite to it, a motor disposed between the two sets of ejector pins, and a limiting member for synchronously rotating the rotating plate and the motor. The rotating plate is rotatable; the second ejector pin is movable to move closer to or away from the motor; the motor can rotate between the first ejector pin and the second ejector pin; the rotating plate has a plurality of connecting holes; the limiting member can be threaded into the connecting holes; a slot is provided on the outer side of the motor; the slot corresponds to the limiting member; when the limiting member is located in the slot, the rotating plate and the motor rotate synchronously.

[0007] As a further improvement to the above technical solution:

[0008] The distances between the connecting holes and the first ejector pin are different, thereby adapting to motors of different sizes.

[0009] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0010] 1. By employing a transmission method that uses the first and second ejector pins for end support, combined with a limiting component embedded in the motor housing slot, the radial clamping of the traditional chuck is replaced, eliminating the risk of plastic deformation of the thin-walled housing due to excessive clamping force. The point contact support of the ejector pins and the torque transmission separation design of the limiting component ensure both motor rotational stability and reduce extrusion damage to the housing surface, making it particularly suitable for the machining requirements of high-precision motor housings. The fitting structure of the limiting component and the slot forms a rigid transmission, avoiding relative sliding caused by cutting forces in the ejector pin friction transmission, ensuring complete synchronization of the rotational plate and the motor housing speed. This lag-free synchronous rotation significantly reduces the perpendicularity error between the machining plane and the centerline of the rotation axis, solving the accuracy deviation problem caused by unstable speed in traditional friction transmission. Multiple sets of connection holes with different spacings are opened on the rotational plate, allowing for adaptation to different sizes of motor housings by adjusting the installation position of the limiting component, without the need to replace the chuck jaws or the overall structure. Compared to the repeated parameter adjustments of traditional chucks, the changeover process only requires repositioning the limiting component, simplifying the operation process by approximately 60% and improving the flexibility of multi-variety motor production. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure that drives the motor housing to rotate synchronously in this utility model.

[0012] In the diagram: 1. Rotating plate; 11. Connecting hole; 2. First ejector pin; 3. Second ejector pin; 4. Motor; 41. Slot; 5. Limiting component. Detailed Implementation

[0013] This application provides a structure that drives the motor housing to rotate synchronously, solving the problems of easy deformation and poor fit of chuck clamping in the prior art; easy slippage and poor positioning of ejector pin friction transmission; and low precision.

[0014] The technical solution in this application embodiment is to solve the above problems, and the overall idea is as follows:

[0015] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0016] A structure for synchronously rotating a motor housing includes a rotating plate 1, a first ejector pin 2 detachably connected to the rotating plate 1, a second ejector pin 3 oppositely arranged, a motor 4 disposed between the two sets of ejector pins, and a limiting member 5 for synchronously rotating the rotating plate 1 and the motor 4; the rotating plate 1 is rotatable; the second ejector pin 3 is movable to move closer to or away from the motor 4; the motor 4 can rotate between the first ejector pin 2 and the second ejector pin 3; the rotating plate 1 has a plurality of connecting holes 11; the limiting member 5 can be threaded into the connecting holes 11; the outer side of the motor 4 is provided with a slot 41; the slot 41 corresponds to the limiting member 5; when the limiting member 5 is located in the slot 41, the rotating plate 1 and the motor 4 rotate synchronously.

[0017] The distance between the connecting hole 11 and the first ejector pin 2 is different, so as to accommodate motors 4 of different sizes.

[0018] By employing a transmission method that uses the first ejector pin 2 and the second ejector pin 3 for end support, combined with the limiting member 5 embedded in the slot 41 of the motor 4 housing, the radial clamping of the traditional chuck is replaced, eliminating the risk of plastic deformation of the thin-walled housing caused by excessive clamping force. The point contact support of the ejector pins and the torque transmission separation design of the limiting member 5 ensure the rotational stability of the motor 4 and reduce the extrusion damage to the housing surface, making it particularly suitable for the machining requirements of high-precision motor 4 housings. The fitting structure of the limiting member 5 and the slot 41 forms a rigid transmission, avoiding relative sliding caused by cutting force in the friction transmission of the ejector pins, and ensuring that the rotational speed of the rotating plate 1 and the motor 4 housing are completely synchronized. This lag-free synchronous rotation significantly reduces the perpendicularity error between the machining plane and the center line of the rotation axis, solving the accuracy deviation problem caused by unstable rotational speed in traditional friction transmission. Multiple sets of connecting holes 11 with different spacings are opened on the rotating plate 1, which can be adapted to motor 4 housings of different sizes by adjusting the installation position of the limiting member 5, without the need to replace the chuck or the overall structure. Compared to the repeated parameter adjustments of traditional chucks, the changeover process only requires repositioning the limit component 5, simplifying the operation process by about 60% and improving the flexibility of producing multiple types of motors 4.

[0019] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0020] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A structure for synchronously rotating a motor housing, characterized in that: The device includes a rotating plate (1), a first ejector pin (2) detachably connected to the rotating plate (1), a second ejector pin (3) disposed opposite to the rotating plate (1), a motor (4) disposed between the two sets of ejector pins, and a limiting member (5) that drives the rotating plate (1) and the motor (4) to rotate synchronously; the rotating plate (1) is rotatable; the second ejector pin (3) is movable to move closer to or away from the motor (4); the motor (4) can rotate between the first ejector pin (2) and the second ejector pin (3); the rotating plate (1) is provided with several connecting holes (11); the limiting member (5) can be threaded into the connecting holes (11); a slot (41) is provided on the outside of the motor (4); the slot (41) corresponds to the limiting member (5); when the limiting member (5) is located in the slot (41), the rotating plate (1) and the motor (4) rotate synchronously.

2. The structure for synchronously rotating the motor housing according to claim 1, characterized in that: The distance between the connecting hole (11) and the first ejector pin (2) is different, so as to adapt to motors (4) of different sizes.

Images