A rapid inspection fixture for CNC machine tools
By integrating clamping and inspection into a CNC machine tool rapid inspection fixture, and utilizing a vision inspection camera and inspection mechanism, the problem of single-function fixtures is solved, enabling direct inspection of workpieces, shortening the production cycle, and improving efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN YILISHA HARDWARE PLASTIC PROD CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-31
AI Technical Summary
Existing CNC machine tool fixtures have limited functionality, separating clamping and inspection, resulting in long production cycles, low efficiency, and a high susceptibility to errors.
Design a rapid inspection fixture for CNC machine tools that integrates clamping and inspection. It adopts a vision inspection camera and inspection mechanism to realize direct inspection of workpieces after processing. The position and height of the camera are adjusted by combining the motor, lead screw and slide bar.
It enables workpieces to be inspected directly after processing without needing to be transferred, shortening the production cycle, improving production efficiency, reducing errors, and adapting to different workpiece positions and heights.
Smart Images

Figure CN224575143U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture technology, specifically a rapid inspection fixture for CNC machine tools. Background Technology
[0002] As modern manufacturing develops towards higher precision and higher efficiency, CNC machine tools are increasingly widely used in parts processing. In the parts production process, workpiece positioning, clamping, and quality inspection are key links to ensure processing accuracy and product qualification rate.
[0003] Currently, most of the fixtures equipped on CNC machine tools have relatively simple functions, with their main responsibility being the positioning and fixing of workpieces. This means that quality inspection can only be carried out separately after machining is completed, using specialized testing equipment, making clamping and inspection two independent processes.
[0004] This separate processing and inspection mode requires workpieces to be frequently transferred between different workstations, which greatly extends the production cycle. At the same time, in the face of the current demand for small-batch and multi-variety production, its slow response speed and difficulty in adjustment are becoming increasingly obvious. This not only increases manpower and time costs, but may also introduce additional errors due to multiple clamping, reducing product quality. Therefore, a rapid inspection fixture for CNC machine tools is proposed. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a rapid inspection fixture for CNC machine tools, which integrates clamping and inspection functions, thus solving the problem that most fixtures currently equipped on CNC machine tools have limited functions and their main function is focused on workpiece positioning and fixation.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a CNC machine tool rapid inspection fixture, comprising a fixture body, a top plate being provided on the top of the fixture body, an inspection mechanism being provided on the front side of the top plate, and a visual inspection camera being provided inside the inspection mechanism; The detection mechanism includes a connecting shell, inside which a groove is formed. A motor is fixedly installed inside the groove, and a lead screw is fixedly installed at the output shaft of the motor. A sliding rod is fixedly installed inside the groove, and a movable seat is movably installed between the outer surfaces of the lead screw and the sliding rod. An electric telescopic rod is fixedly installed on the top of the movable seat, and an installation plate is fixedly installed on the telescopic end of the electric telescopic rod.
[0007] Furthermore, the visual inspection camera is mounted on the bottom of the mounting plate.
[0008] Furthermore, the movable seat is threadedly connected to the lead screw and slidably connected to the slide rod.
[0009] Furthermore, the interior of the movable base is provided with a storage slot adapted to the visual inspection camera, and a supplementary light is provided at the bottom of the visual inspection camera.
[0010] Furthermore, the means of generating the electric telescopic rod extends into the interior of the storage slot and is connected to the mounting plate.
[0011] Furthermore, the interior of the connecting shell is equipped with a power module, a signal processing module, and a signal storage module.
[0012] Furthermore, the power module is electrically connected to the motor, the electric telescopic pole, the visual inspection camera, the signal processing module, and the signal storage module, respectively; the signal output terminal of the visual inspection camera is electrically connected to the input terminal of the signal processing module, and the output terminal of the signal processing module is electrically connected to the input terminal of the signal storage module.
[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects: This CNC machine tool rapid inspection fixture integrates workpiece clamping and inspection on the same fixture by setting up an inspection mechanism and a vision inspection camera. After the workpiece is processed, it does not need to be transferred to other dedicated inspection equipment and stations; the vision inspection camera can directly inspect the workpiece. Furthermore, the cooperation of the motor, lead screw, and slide bar moves the moving base, and the electric telescopic rod adjusts the height of the vision inspection camera, enabling comprehensive inspection of workpieces at different positions and heights, greatly shortening the production cycle and improving production efficiency. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the clamp body and top plate of this utility model; Figure 3 This is a three-dimensional sectional view of the connecting shell of this utility model; Figure 4 This is a cross-sectional view of the testing mechanism of this utility model; Figure 5 This is a three-dimensional structural diagram of the visual inspection camera and mounting plate of this utility model.
[0015] In the diagram: 1. Fixture body; 2. Top plate; 3. Detection mechanism; 301. Connecting shell; 302. Groove; 303. Motor; 304. Lead screw; 305. Slide rod; 306. Moving seat; 307. Electric telescopic rod; 308. Mounting plate; 4. Visual inspection camera; 401. Fill light; 402. Storage slot; 501. Power module; 502. Signal processing module; 503. Signal storage module. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figures 1-5 The CNC machine tool rapid inspection fixture in this embodiment includes a fixture body 1, a top plate 2 is provided on the top of the fixture body 1, an inspection mechanism 3 is provided on the front side of the top plate 2, and a visual inspection camera 4 is provided inside the inspection mechanism 3.
[0018] The testing mechanism 3 includes a connecting shell 301, a groove 302 is provided inside the connecting shell 301, a motor 303 is fixedly installed inside the groove 302, a lead screw 304 is fixedly installed at the output shaft of the motor 303, a slide rod 305 is fixedly installed inside the groove 302, a movable seat 306 is movably installed between the outer surfaces of the lead screw 304 and the slide rod 305, an electric telescopic rod 307 is fixedly installed on the top of the movable seat 306, and an installation plate 308 is fixedly installed at the telescopic end of the electric telescopic rod 307.
[0019] The inspection mechanism 3 is based on the connecting shell 301 as its basic frame. The motor 303 serves as the power core, rotating at high speed after being powered on, converting electrical energy into mechanical energy to drive the lead screw 304 to rotate. Driven by the motor 303, the lead screw 304 uses the principle of thread transmission to convert rotational motion into linear motion. Since the moving seat 306 is threadedly connected to the lead screw 304, the rotation of the lead screw 304 will drive the moving seat 306 to move along the axis of the lead screw 304. At the same time, the sliding rod 305 is slidably connected to the moving seat 306, providing guidance and auxiliary support for the movement of the moving seat 306, ensuring that its movement is smooth and without deviation, thereby realizing the adjustment of the moving seat 306 in the horizontal direction. The electric telescopic rod 307, which is fixedly installed on the top of the moving seat 306, is responsible for adjusting the vertical height of the visual inspection camera 4. The electric telescopic rod 307 drives the mounting plate 308 to move up and down through its telescopic action, thereby changing the height position of the visual inspection camera 4 installed at the bottom of the mounting plate 308, so that it can adapt to the inspection needs of workpieces of different heights.
[0020] The visual inspection camera 4 is a key component for workpiece inspection. By capturing images of the workpiece, it collects information such as the workpiece's appearance, size, and shape, providing a data foundation for quality inspection. The storage slot 402 inside the movable base 306 is adapted to the size of the visual inspection camera 4. When the visual inspection camera 4 is idle, the electric telescopic rod 307 retracts, storing the visual inspection camera 4 into the storage slot 402, effectively preventing accidental damage such as collisions and scratches, and extending its service life. In addition, the supplementary light 401 at the bottom of the visual inspection camera 4 can provide stable and uniform auxiliary lighting when the ambient light is insufficient, ensuring that the images captured by the visual inspection camera 4 are clear and accurate, and improving the reliability of the inspection results.
[0021] The connecting shell 301 houses a power module 501, a signal processing module 502, and a signal storage module 503. The power module 501 provides stable power to the motor 303, the electric telescopic rod 307, the vision inspection camera 4, the signal processing module 502, and the signal storage module 503, ensuring the normal operation of each component. The image signal captured by the vision inspection camera 4 is transmitted to the signal processing module 502. The signal processing module 502 uses a preset algorithm to analyze and process the image signal, extracting key feature information of the workpiece, such as dimensional deviations and surface defects. The processed valid data is then transmitted to the signal storage module 503 for storage, allowing staff to retrieve and view it at any time, providing detailed data support for product quality analysis and traceability. The fixture body 1 in this embodiment is based on existing mature technology and can achieve the clamping and fixing of the workpiece, which will not be described in detail here.
[0022] In summary, this rapid inspection fixture for CNC machine tools integrates workpiece clamping and inspection on the same fixture by setting up an inspection mechanism 3 and a vision inspection camera 4. After the workpiece is processed, it does not need to be transferred to other dedicated inspection equipment and stations; the vision inspection camera 4 can directly inspect the workpiece. Furthermore, the cooperation of the motor 303, the lead screw 304, and the slide bar 305 moves the moving seat 306, and the electric telescopic rod 307 adjusts the height of the vision inspection camera 4, enabling comprehensive inspection of workpieces at different positions and heights, greatly shortening the production cycle and improving production efficiency.
[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rapid inspection fixture for CNC machine tools, comprising a fixture body (1), characterized in that: The top of the fixture body (1) is provided with a top plate (2), and a detection mechanism (3) is provided on the front side of the top plate (2). A visual inspection camera (4) is provided inside the detection mechanism (3). The detection mechanism (3) includes a connecting shell (301), a groove (302) is provided inside the connecting shell (301), a motor (303) is fixedly installed inside the groove (302), a lead screw (304) is fixedly installed at the output shaft of the motor (303), a slide rod (305) is fixedly installed inside the groove (302), a movable seat (306) is movably installed between the outer surfaces of the lead screw (304) and the slide rod (305), an electric telescopic rod (307) is fixedly installed on the top of the movable seat (306), and an installation plate (308) is fixedly installed at the telescopic end of the electric telescopic rod (307).
2. The quick detection fixture of numerically controlled machine tool according to claim 1, characterized in that: The visual inspection camera (4) is mounted on the bottom of the mounting plate (308).
3. The quick detection fixture of numerically controlled machine tool according to claim 1, characterized in that: The movable seat (306) is threadedly connected to the lead screw (304) and slidably connected to the slide rod (305).
4. The quick detection fixture of numerically controlled machine tool according to claim 1, characterized in that: The movable base (306) has a storage slot (402) inside that is compatible with the visual inspection camera (4), and a supplementary light (401) is provided at the bottom of the visual inspection camera (4).
5. The quick detection fixture of numerically controlled machine tool according to claim 4, characterized in that: The electric telescopic rod (307) extends into the interior of the storage slot (402) and is connected to the mounting plate (308).
6. The quick detection fixture of numerically controlled machine tool according to claim 1, characterized in that: The connecting shell (301) is internally equipped with a power module (501), a signal processing module (502), and a signal storage module (503).
7. The quick detection fixture of numerically controlled machine tool according to claim 6, characterized in that: The power module (501) is electrically connected to the motor (303), the electric telescopic rod (307), the visual inspection camera (4), the signal processing module (502), and the signal storage module (503), respectively; the signal output terminal of the visual inspection camera (4) is electrically connected to the input terminal of the signal processing module (502), and the output terminal of the signal processing module (502) is electrically connected to the input terminal of the signal storage module (503).