Clamping device for machining motor outer shell and achieving balanced stress

Abstract

The invention relates to the technical field of aviation part machining, and discloses a clamping device for machining a motor outer shell to be stressed in a balanced mode, through cooperation of a base, a pressing plate and a supporting column, deformation of the motor outer shell caused by too large clamping force can be avoided, the hole position precision of through holes in the periphery of the motor outer shell in the machining process is ensured, and the machining efficiency is improved. And the machining precision and the qualified rate of the thin-wall part of the motor outer shell can be improved.

Description

Technical Field

[0001] This invention relates to the field of aerospace component machining technology, and discloses a clamping device for machining motor housings with balanced force distribution. Background Technology

[0002] In the machining of thin-walled motor housings in aerospace components, these parts are crucial in practical applications. Although their appearance is relatively simple, the dimensional requirements are extremely stringent; any deviation can easily lead to the scrapping of the entire motor product. Currently, in the machining process of thin-walled motor housing parts, there is a problem where, when machining the through holes around the perimeter after clamping, the large clamping force causes deformation of the part, leading to deviations in the hole positions and resulting in a low pass rate for such parts. Summary of the Invention

[0003] The purpose of this invention is to provide a clamping device for balancing the force on the motor housing during machining. This device can clamp and position the motor housing, prevent deformation of the motor housing due to excessive clamping force, ensure the positional accuracy of the through holes around the motor housing during machining, and improve the machining pass rate.

[0004] To achieve the above-mentioned technical effects, the technical solution adopted by the present invention is as follows: A clamping device for balancing the force on a motor housing during machining, comprising: The base is equipped with a positioning device. The base is used to place the motor housing and to position the bottom of the motor housing along the X-axis and Y-axis. A pressure plate is installed on the top of the motor housing and is used to cooperate with the base to clamp the motor housing and position the motor housing along the Z-axis. A support column, one end of which is connected to the base and the other end of which is connected to the pressure plate.

[0005] Furthermore, the positioning device is a circular boss, which is inserted into the bottom of the motor housing and transitionally fitted with the motor housing.

[0006] Furthermore, the base is provided with a first threaded hole for connecting with the support column.

[0007] Furthermore, the pressure plate is a square plate, and a circular hole is provided in the center of the pressure plate.

[0008] Furthermore, the pressure plate is also provided with stepped holes, and the stepped holes are provided with connecting bolts that connect to the support column.

[0009] Furthermore, one end of the support column is provided with a threaded post, which is threadedly connected to the threaded hole of the base, and the other end of the support column is provided with a second threaded hole for connecting to the pressure plate by bolts.

[0010] Furthermore, four support columns are provided and surround the motor housing.

[0011] Furthermore, the outer wall of the motor housing has an outer circular groove, and the support column fits into the outer circular groove.

[0012] Compared with the prior art, the beneficial effects of this invention are: This invention uses a positioning device to position the motor housing on the base along the X and Y axes. A pressure plate further fixes the motor housing along the Z-axis by pressing it, thus achieving clamping and spatial positioning of the motor housing and preventing vibration and displacement during processing. The support column, acting as a bridge between the base and the pressure plate, not only enhances the structural stability of the entire clamping device but also ensures a uniform distribution of the clamping force applied by the pressure plate, avoiding deformation caused by excessive localized stress. Through the cooperation of the base, pressure plate, and support column, this invention prevents deformation of the motor housing due to excessive clamping force, ensures the accuracy of the hole positions around the motor housing during processing, and improves the processing accuracy and yield rate of thin-walled motor housing parts. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the clamping device used to balance the force on the motor housing in the embodiment. Figure 2 This is a schematic diagram of the base structure in the embodiment; Figure 3 This is a schematic diagram of the pressure plate structure in the embodiment; Figure 4 This is a schematic diagram of the supporting column in the embodiment; Among them, 1-base, 2-circular boss, 3-first threaded hole, 4-pressure plate, 5-circular hole, 6-stepped hole, 7-support column, 8-threaded column, 9-second threaded hole, 10-motor housing. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the embodiments and accompanying drawings. However, this should not be construed as limiting the scope of the above-described subject matter of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0015] See Figures 1 to 4 The present invention provides a clamping device for processing motor housings with balanced force distribution, comprising: The base 1 is equipped with a positioning device. The base 1 is used to place the motor housing 10 and to position the bottom of the motor housing 10 along the X-axis and Y-axis. It should be noted that a three-dimensional XYZ coordinate system is constructed with the center of the base 1 as the origin, with the horizontal plane as the XY axis plane and the Z axis perpendicular to the XY axis plane.

[0016] Pressure plate 4 is installed on the top of motor housing 10 and is used to cooperate with base 1 to clamp motor housing 10 and position motor housing 10 along Z-axis; Support column 7, one end of which is connected to the base 1 and the other end of which is connected to the pressure plate 4.

[0017] This invention uses a positioning device to position the motor housing 10 on the base 1 along the X and Y axes. The pressure plate 4 further fixes the position of the motor housing 10 along the Z axis by pressing it, thus achieving clamping and spatial positioning of the motor housing 10 and preventing vibration and displacement during processing. The support column 7 acts as a bridge connecting the base 1 and the pressure plate 4, enhancing the structural stability of the entire clamping device and ensuring a uniform distribution of the clamping force applied by the pressure plate 4 to the motor housing 10, avoiding deformation caused by excessive local force. Through the cooperation of the base 1, pressure plate 4, and support column 7, this invention avoids deformation of the motor housing 10 due to excessive clamping force, ensures the accuracy of the hole positions of the through holes around the motor housing 10 during processing, and improves the processing accuracy and yield rate of thin-walled parts such as the motor housing 10.

[0018] The base 1 is a square block structure with a circular boss 2 at the center. When the motor housing 10 is placed on the base 1, the circular boss 2 inserts into the bottom of the motor housing 10 and transitions into the motor housing 10, thereby positioning the motor housing 10 along the X and Y axes. Furthermore, the base 1 also has four first threaded holes 3, distributed on the outside of the truncated cone.

[0019] The pressure plate 4 is a square plate with rounded corners. A circular hole 5 is provided in the center of the pressure plate 4, and four stepped holes 6 with stepped platform features are provided around the circular hole 5.

[0020] The support column 7 is a slender stepped cylinder. One end of the support column 7 is provided with a threaded column 8, which is threadedly connected to the threaded hole of the base 1 to achieve the fastening of the support column 7 and the base 1. The other end of the support column 7 is provided with a second threaded hole 9. The connecting bolt is inserted into the stepped hole 6 of the pressure plate 4 and then connected to the second threaded hole 9 to achieve the fastening of the support column 7 and the pressure plate 4.

[0021] Four support columns 7 are provided and surround the motor housing 10. The outer wall of the motor housing 10 has an outer circular groove, and the support columns 7 fit into the outer circular groove to further position the motor housing 10. By using the support columns 7 to connect and fasten the base 1 and the pressure plate 4, the clamping force of the thin-walled parts of the motor housing 10 is controlled, thereby achieving the effect of clamping without deformation.

[0022] The base 1 of this invention is fixed to one end of the motor housing 10, and the pressure plate 4 is fixed to the other end of the motor housing 10. The base 1 and the pressure plate 4 are connected and fixed by support columns 7 and screws. This not only achieves clamping and fixing of the left and right ends of the motor housing 10, but also uses the four support columns 7 to limit and fix the four outer circular grooves on the outer wall of the motor housing 10. This solves the problem of easy deformation and hole machining position deviation caused by the thin transverse wall of the motor housing 10 under force in the traditional clamping process. This invention uses the base 1, pressure plate 4 and support columns 7 to clamp the motor housing 10 longitudinally. The pressure plate 4 transmits the clamping force, so that the clamping force of the clamping device is evenly transmitted to the entire motor housing 10. The bottom of the motor housing 10 cooperates with the base 1, so that the clamping device can both fasten the motor housing 10 and meet the force requirements.

[0023] This invention solves the problem of the inability to properly clamp the thin-walled parts of the motor housing 10, ensuring that the hole dimensions of the through holes to be processed are not deformed during the processing of the thin-walled parts of the motor housing 10, thereby improving the processing qualification rate and processing efficiency.

[0024] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A clamping device for processing motor housings with balanced force distribution, characterized in that, include: The base (1) is provided with a positioning device. The base (1) is used to place the motor housing (10) and to position the bottom of the motor housing (10) along the X-axis and Y-axis using the positioning device. Pressure plate (4), the pressure plate (4) is installed on the top of the motor housing (10) for cooperating with the base (1) to clamp the motor housing (10) and position the motor housing (10) along the Z-axis; Support column (7), one end of which is connected to the base (1) and the other end is connected to the pressure plate (4).

2. The clamping device according to claim 1, characterized in that, The positioning device is a circular boss (2), which is inserted into the bottom of the motor housing (10) and transitionally fitted with the motor housing (10).

3. The clamping device according to claim 1, characterized in that, The base (1) is provided with a first threaded hole (3) for connecting with the support column (7).

4. The clamping device according to claim 3, characterized in that, The pressure plate (4) is a square plate, and a circular hole (5) is provided in the center of the pressure plate (4).

5. The clamping device according to claim 4, characterized in that, The pressure plate (4) is also provided with a stepped hole (6), and a connecting bolt for connecting to the support column (7) is provided in the stepped hole (6).

6. The clamping device according to claim 5, characterized in that, One end of the support column (7) is provided with a threaded column (8) which is threaded to the threaded hole of the base (1). The other end of the support column (7) is provided with a second threaded hole (9) for connecting to the pressure plate (4) by bolts.

7. The clamping device according to claim 6, characterized in that, Four support columns (7) are provided and surround the motor housing (10).

8. The clamping device according to claim 7, characterized in that, The outer wall of the motor housing (10) has an outer circular groove, and the support column (7) fits into the outer circular groove.

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