CNC machining positioning jig for charger shell
By designing a positioning fixture controlled by vacuum adsorption and a geared motor, the problems of cumbersome clamping and inconvenient angle adjustment in the traditional CNC machining of charger shells are solved, enabling rapid fixing and multi-angle machining, thus improving production efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN WENYANG PRECISION METAL PROD CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional CNC machining positioning fixtures for charger housings are cumbersome and inefficient in terms of clamping and disassembly operations, and it is difficult to ensure consistency in each clamping and ease of angle adjustment.
The design employs a positioning fixture that combines vacuum adsorption fixation with geared motor control. The charger housing is quickly fixed using a multi-hole vacuum suction cup, and the tilt and rotation adjustment of the charger housing is achieved using a geared motor and a piezoelectric rotary table.
It enables rapid fixing and multi-angle processing of the charger casing, improving production efficiency and processing quality while reducing labor intensity.
Smart Images

Figure CN224158094U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of positioning fixtures, specifically to a CNC machining positioning fixture for a charger housing. Background Technology
[0002] In the electronics manufacturing industry, chargers are indispensable accessories with huge market demand. As consumers' requirements for the quality and appearance of electronic products continue to increase, the manufacturing precision, appearance quality, and production efficiency of charger casings face more stringent challenges. CNC (Computer Numerical Control) machining technology, with its significant advantages of high precision, high efficiency, and high flexibility, has been widely used in the manufacturing process of charger casings. However, in the CNC machining of charger casings, the performance of the positioning fixture plays a crucial and decisive role in the machining quality and efficiency.
[0003] In terms of ease of clamping and disassembly, traditional fixtures mostly use mechanical clamping, which is cumbersome and requires manual adjustment of clamping force and position. This is not only inefficient but also makes it difficult to ensure consistency in each clamping operation. At the same time, when disassembling the machined charger shell, it is necessary to repeatedly loosen and tighten the clamps to adjust the machining angle of the charger shell, which increases the production cycle and labor intensity. Utility Model Content
[0004] The purpose of this invention is to address the above-mentioned shortcomings by providing a CNC machining positioning fixture for charger housings. When installing the charger housing, it uses vacuum adsorption for rapid fixation, and a geared motor controls the rotation of the vacuum fixture to tilt the charger housing accordingly. This solves the technical problems of inconvenient installation, fixation, and angle adjustment of charger housings in the prior art.
[0005] The objective of this utility model is achieved through the following means:
[0006] A CNC machining positioning fixture for a charger housing includes a support shell, a bracket is provided at the upper inner end of the support shell, and drive shafts are fixedly provided at both the left and right outer ends of the bracket, and the drive shafts are rotatably connected to the support shell. A geared motor is provided on the right outer side of the support shell, and the geared motor is connected to the drive shaft through a coupling. A multi-hole vacuum suction cup is fixed to the upper inner end of the bracket by screws.
[0007] Furthermore, guide plates are installed on both the left and right sides of the upper end of the bracket, and the guide plates are fixed to the bracket with screws. The guide plates guide the charger housing, making it easier for the charger housing to be placed on the upper end of the multi-hole vacuum suction cup.
[0008] Furthermore, the geared motor and the support shell are fixedly connected by a side frame.
[0009] Furthermore, a piezoelectric rotating platform is provided at the lower end of the support shell, and the piezoelectric rotating platform is fixed to the support shell by screws. The piezoelectric rotating platform makes it easy for the support shell to rotate at a precise angle.
[0010] Furthermore, a base plate is provided at the lower end of the piezoelectric rotary table, and the base plate is fixed to the piezoelectric rotary table with screws, thereby increasing the contact area at the bottom of the piezoelectric rotary table.
[0011] Furthermore, the lower end of the base plate is equipped with equidistant anti-slip strips, which are adhered and fixed to the base plate, thereby increasing the friction at the lower end of the base plate.
[0012] The beneficial effects of this utility model are:
[0013] This utility model solves the problems mentioned in the background art by setting up a porous vacuum suction cup, placing the charger shell on the upper end of the porous vacuum suction cup, and quickly fixing the charger shell by vacuum adsorption. Then, the bracket is controlled to tilt and rotate back and forth by a geared motor, so that the charger shell can be easily adjusted for processing. Attached Figure Description
[0014] Figure 1 This is a perspective view of the overall structure of this utility model;
[0015] Figure 2 This is a three-dimensional view of the structure of this utility model in its disassembled state;
[0016] Figure 3 This is a perspective view of the bracket of this utility model in an inclined state.
[0017] In the diagram, 1. Support shell; 2. Bracket; 3. Perforated vacuum suction cup; 4. Guide plate; 5. Side frame; 6. Gear motor; 7. Piezoelectric rotary table; 8. Base plate; 9. Anti-slip strip; 10. Drive shaft; 11. Coupling. Detailed Implementation
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0019] In this embodiment, refer to Figure 1 , Figure 2 and Figure 3 The present invention relates to a CNC machining positioning fixture for a charger housing, comprising a housing 1, a bracket 2 provided at the upper inner end of the housing 1, a drive shaft 10 fixedly provided at both the left and right outer ends of the bracket 2, and the drive shaft 10 being rotatably connected to the housing 1, a geared motor 6 provided on the right outer side of the housing 1, the geared motor 6 being connected to the drive shaft 10 via a coupling 11, and a multi-hole vacuum suction cup 3 fixed to the upper inner end of the bracket 2 by screws.
[0020] like Figure 1 , Figure 2 and Figure 3 As shown, guide plates 4 are installed on both the left and right sides of the upper end of the bracket 2, and the guide plates 4 are fixed to the bracket 2 by screws. The guide plates 4 guide the charger shell, making it easier for the charger shell to be placed on the upper end of the multi-hole vacuum suction cup 3.
[0021] like Figure 1 and Figure 2 As shown, the geared motor 6 and the support shell 1 are fixedly connected by the side frame 5.
[0022] like Figure 1 and Figure 2 As shown, a piezoelectric rotary table 7 is provided at the lower end of the support shell 1, and the piezoelectric rotary table 7 is fixed to the support shell 1 by screws. The piezoelectric rotary table 7 makes it easy for the support shell 1 to rotate at a precise angle.
[0023] like Figure 1 and Figure 2 As shown, a base plate 8 is provided at the lower end of the piezoelectric rotary table 7, and the base plate 8 is fixed to the piezoelectric rotary table 7 by screws. The base plate 8 increases the contact area at the bottom of the piezoelectric rotary table 7.
[0024] like Figure 1 and Figure 2 As shown, anti-slip strips 9 are evenly distributed at the lower end of the base plate 8, and the anti-slip strips 9 are adhered and fixed to the base plate 8. The anti-slip strips 9 improve the friction at the lower end of the base plate 8.
[0025] The working process of a CNC machining positioning fixture for a charger housing in this embodiment is as follows: Place the base plate 8 on the CNC machining table, clamp and fix both ends of the base plate 8 using a fixture, connect the input end of the multi-hole vacuum chuck 3 to the vacuum equipment, place the charger housing to be processed on the upper end of the multi-hole vacuum chuck 3, start the vacuum equipment, and firmly adsorb the charger housing through the multi-hole vacuum chuck 3 so that the CNC machine tool can process the charger housing. By starting the reduction motor 6, the output end of the reduction motor 6 drives the drive shaft 10, thereby causing the bracket 2 to rotate, so that the charger housing on the upper end of the multi-hole vacuum chuck 3 tilts back and forth. Start the piezoelectric rotary table 7 to control the rotation of the support 1 so that the charger housing rotates accordingly. The above method realizes multi-angle processing of the charger housing.
[0026] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.
Claims
1. A CNC-machined positioning fixture for a charger housing, comprising a support shell, characterized in that: The upper interior of the support shell is provided with a bracket, and drive shafts are fixedly installed on both the left and right ends of the bracket. The drive shafts are rotatably connected to the support shell. A geared motor is installed on the right side of the outer side of the support shell. The geared motor is connected to the drive shaft through a coupling. A multi-hole vacuum suction cup is fixed to the upper interior of the bracket with screws. Guide plates are installed on both the left and right sides of the upper end of the bracket. A piezoelectric rotary table is installed at the lower end of the support shell, and a base plate is installed at the lower end of the piezoelectric rotary table.
2. The CNC machining positioning fixture for a charger housing according to claim 1, characterized in that: Furthermore, the guide plate and the bracket are fixed with screws.
3. The CNC machining positioning fixture for a charger housing according to claim 1, characterized in that: The geared motor and the support shell are fixedly connected by a side frame.
4. The CNC machining positioning fixture for a charger housing according to claim 1, characterized in that: The piezoelectric rotary table is fixed to the support shell by screws.
5. The CNC machining positioning fixture for a charger housing according to claim 1, characterized in that: The base plate is fixed to the piezoelectric rotary table with screws.
6. The CNC machining positioning fixture for a charger housing according to claim 1, characterized in that: The lower end of the base plate is equipped with equidistant anti-slip strips, which are adhered and fixed to the base plate.