A CNC tooling fixture facilitating quick change of clamps
By introducing threaded rotating rods and limit components into the CNC fixture, the problems of inconvenient fixture adjustment and tilting are solved, enabling quick replacement and stable positioning, and improving the convenience and practicality of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENGYANG ZELIN MACHINERY CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-26
AI Technical Summary
The existing CNC fixture is inconvenient to operate manually because the adjusting nut is located below the mounting bracket, and it is prone to lateral tilting after prolonged use.
A clamping structure including a main frame, mounting frame, replacement components, positioning frame, and limiting components is designed. Through the cooperation of threaded rotating rod and sliding block, the vise can be smoothly adjusted and fixed to prevent tilting. The limiting frame and elastic telescopic rod prevent the sliding block from falling off.
It enables quick clamp replacement and smooth adjustment, prevents sliding blocks from falling off, and improves the convenience and practicality of operation.
Smart Images

Figure CN224407004U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture technology, specifically a CNC tooling fixture that facilitates quick fixture changes. Background Technology
[0002] CNC (Computer Numerical Control) is a type of automated machine tool controlled by a program. The development of science and technology, along with the rise and continuous maturation of advanced manufacturing technologies worldwide, has placed higher demands on CNC machining technology. The application of technologies such as ultra-high-speed cutting and ultra-precision machining has imposed higher performance requirements on the CNC system, servo performance, spindle drive, and machine tool structure of CNC machine tools. The rapid development of FMS (Flexible Manufacturing Systems) and the continuous maturation of CIMS (Computer Integrated Manufacturing Systems) will further demand higher standards for the reliability, communication capabilities, artificial intelligence, and adaptive control technologies of CNC machine tools. With the development of microelectronics and computer technology, the performance of CNC systems is becoming increasingly sophisticated, and the application fields of CNC technology are expanding daily.
[0003] According to a public notice (No. CN219582188U) of a quick-change CNC fixture that is easy to disassemble, the above application uses an adjustment device. When the movable rod rotates, the two moving plates move in opposite directions, thereby changing the length of the two push rods extending out of the mounting frame. The hemispherical end of the push rod presses against the rotating device, which in turn drives the fixture on the mounting device to rotate, thus facilitating the adjustment of the fixture position. Since this device does not require manual hammering of the fixture, it is less likely to cause over-adjustment. It is easy to operate, improves the fixture installation speed, and to a certain extent avoids fixture damage caused by hammering.
[0004] However, while the aforementioned equipment can improve the installation speed of the fixture and avoid damage to the fixture caused by striking it, the adjusting nut is located below the mounting bracket during normal use, making it inconvenient to reach out and rotate it during daily use. Furthermore, the lack of external balancing components when the mounting plate moves left or right can lead to tilting on one side after prolonged use. Therefore, we propose a CNC tooling fixture that facilitates quick fixture replacement. Utility Model Content
[0005] The purpose of this invention is to provide a CNC tooling fixture that facilitates quick fixture changes, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a CNC tooling fixture that facilitates quick fixture replacement, comprising a main frame, an mounting frame fixedly connected to the outer wall of the main frame, a replacement component provided on the outer wall of the mounting frame, the replacement component comprising a side plate, the side plate fixedly connected to the outer wall of the mounting frame, a threaded rotating rod rotatably mounted on the inner wall of the side plate, a movable frame threadedly connected to the outer wall of the threaded rotating rod, and a protective cover fixedly connected to the outer wall of the movable frame;
[0007] A positioning frame is fixedly connected to the outer wall of a movable frame. A sliding block is provided on the inner wall of the positioning frame. A bolt is fixedly connected to the outer wall of the sliding block, and a nut is threaded onto the outer wall of the bolt.
[0008] Preferably, the protective cover is slidably connected to the outer wall of the side plate, and the inner wall of the protective cover is adapted to the outer wall of the side plate, so that the protective cover can be moved smoothly.
[0009] Preferably, the number of sliding blocks is several, and the several sliding blocks are arranged in a linear array on the inner wall of the positioning frame.
[0010] Preferably, the centerline of the movable frame and the centerline of the threaded rotating rod are on the same straight line, so that the movable frame can move smoothly when the threaded rotating rod rotates.
[0011] Preferably, the outer wall of the positioning frame is provided with a limiting component, the limiting component includes a limiting frame, the limiting frame is fixedly connected to the outer wall of the positioning frame, the outer wall of the positioning frame is fixedly connected to an extension plate, the outer wall of the extension plate is fixedly connected to an elastic telescopic rod, and the outer wall of the elastic telescopic rod is fixedly connected to a pressure plate.
[0012] Preferably, the number of limiting frames is several, and the several limiting frames are arranged in a linear array on the outer wall of the positioning frame.
[0013] Preferably, the sliding block is slidably connected to the outer wall of the limiting frame, and the inner wall of the sliding block is adapted to the outer wall of the limiting frame, so that the sliding block can be guided.
[0014] Compared with the prior art, this utility model provides a CNC tooling fixture that facilitates quick fixture changes, and has the following beneficial effects:
[0015] 1. This CNC tooling fixture facilitates quick fixture changes. Several sliding blocks and bolts are pushed in from the right side along the slots on the positioning frame. Then, the vise assembly is placed on the positioning frame, and the bolt heads are protruded. The nut is then tightened to fix the vise. The threaded rotating rod can then be rotated to allow the limited moving frame to move smoothly to the left or right, thereby adjusting the displacement of the vise on the positioning frame. Since the threaded rotating rod passes through the moving frame and the main frame, the moving frame and the positioning frame can move smoothly to prevent tilting on one side.
[0016] 2. This CNC tooling fixture facilitates quick fixture changes. When several sliding blocks and bolts are pushed in from the right side along the slots on the positioning frame, the sliding blocks can be guided by the set limit frame. After the required sliding blocks are installed, the sliding blocks on the limit frame can be limited by the set elastic telescopic rod and pressure plate to prevent them from falling off, thus avoiding the problem of sliding blocks falling off and being lost during replacement. When it is necessary to disassemble the sliding blocks, the pressure plate can be pulled down so that the elastic telescopic rod can be disengaged from the limit frame, making it easy to pull out the sliding blocks, which further improves the overall practicality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the threaded rotating rod structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the positioning frame structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the extension plate structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the limiting frame structure of this utility model;
[0022] Figure 6 This is a schematic diagram of the elastic telescopic rod structure of this utility model.
[0023] In the diagram: 1. Main frame; 2. Mounting frame; 3. Replacement component; 301. Side plate; 302. Threaded rotating rod; 303. Moving frame; 304. Protective cover; 305. Positioning frame; 306. Sliding block; 307. Bolt; 308. Nut; 4. Limiting component; 401. Limiting frame; 402. Extension plate; 403. Elastic telescopic rod; 404. Pressure plate. Detailed Implementation
[0024] like Figures 1-6As shown, this utility model provides a technical solution: a CNC tooling fixture that facilitates quick fixture replacement, including a main frame 1, a mounting frame 2 fixedly connected to the outer wall of the main frame 1, a replacement component 3 provided on the outer wall of the mounting frame 2, the replacement component 3 including a side plate 301, the side plate 301 fixedly connected to the outer wall of the mounting frame 2, a threaded rotating rod 302 rotatably mounted on the inner wall of the side plate 301, a movable frame 303 threadedly connected to the outer wall of the threaded rotating rod 302, and a protective cover 304 fixedly connected to the outer wall of the movable frame 303.
[0025] Furthermore, the positioning frame 305 is fixedly connected to the outer wall of the movable frame 303, and the inner wall of the positioning frame 305 is provided with a sliding block 306. The outer wall of the sliding block 306 is fixedly connected with a bolt 307, and the outer wall of the bolt 307 is threadedly connected with a nut 308.
[0026] In this embodiment of the present invention, the protective cover 304 is slidably connected to the outer wall of the side plate 301, and the inner wall of the protective cover 304 is adapted to the outer wall of the side plate 301, so that the protective cover 304 can move smoothly. The number of sliding blocks 306 is several, and the several sliding blocks 306 are arranged in a linear array on the inner wall of the positioning frame 305. The center line of the moving frame 303 and the center line of the threaded rotating rod 302 are on the same straight line, so that the moving frame 303 can move smoothly when the threaded rotating rod 302 rotates.
[0027] Furthermore, the outer wall of the positioning frame 305 is provided with a limiting component 4, which includes a limiting frame 401. The limiting frame 401 is fixedly connected to the outer wall of the positioning frame 305. An extension plate 402 is fixedly connected to the outer wall of the positioning frame 305. An elastic telescopic rod 403 is fixedly connected to the outer wall of the extension plate 402. A pressure plate 404 is fixedly connected to the outer wall of the elastic telescopic rod 403. The number of limiting frames 401 is several, and several limiting frames 401 are arranged in a linear array on the outer wall of the positioning frame 305. A sliding block 306 is slidably connected to the outer wall of the limiting frame 401, and the inner wall of the sliding block 306 is adapted to the outer wall of the limiting frame 401, so that the sliding block 306 can be guided.
[0028] In this utility model, during daily use, the main frame 1 is first installed on the machine tool through the mounting holes on the mounting bracket 2 and the bolts 307. Several sliding blocks 306 and bolts 307 are pushed in from the right side along the grooves on the positioning bracket 305. Then, the vise assembly is placed on the positioning bracket 305 and the bolt heads 307 protrude. Then, the nut 308 is tightened to fix the vise. Then, the threaded rotating rod 302 can be rotated so that the limited moving frame 303 can move smoothly to the left or right to adjust the displacement of the vise on the positioning bracket 305. Since the threaded rotating rod 302 passes through the moving frame 303 and the main frame 1, the moving frame 303 and the positioning bracket 305 can be positioned smoothly to prevent tilting on one side. The exposed end of the threaded rotating rod 302 is also easy to rotate quickly.
[0029] When several sliding blocks 306 and bolts 307 are pushed into the slots on the positioning frame 305 from the right, the sliding blocks 306 can be guided by the limiting frame 401. After the required sliding blocks 306 are installed, the sliding blocks 306 on the limiting frame 401 can be limited by the elastic telescopic rod 403 and the pressure plate 404 to prevent them from falling off, thus avoiding the problem of sliding blocks 306 falling off and being lost during replacement. When it is necessary to disassemble the sliding blocks 306, the pressure plate 404 can be pulled down so that the elastic telescopic rod 403 can be disengaged from the limiting frame 401, making it easier to pull out the sliding blocks 306, which further improves the overall practicality.
[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A CNC tooling fixture facilitating quick replacement of clamps, comprising a main frame (1), an installation frame (2) is fixedly connected to the outer wall of the main frame (1), characterized in that: The outer wall of the mounting bracket (2) is provided with a replacement component (3), the replacement component (3) comprising: Side plate (301), the side plate (301) is fixedly connected to the outer wall of the mounting frame (2), the inner wall of the side plate (301) is rotatably mounted with a threaded rotating rod (302), the outer wall of the threaded rotating rod (302) is threadedly connected to a movable frame (303), and the outer wall of the movable frame (303) is fixedly connected to a protective cover (304); A positioning frame (305) is fixedly connected to the outer wall of the movable frame (303). A sliding block (306) is provided on the inner wall of the positioning frame (305). A bolt (307) is fixedly connected to the outer wall of the sliding block (306). A nut (308) is threadedly connected to the outer wall of the bolt (307).
2. The CNC tooling fixture for easy and quick fixture change according to claim 1, characterized in that: The protective cover (304) is slidably connected to the outer wall of the side plate (301), and the inner wall of the protective cover (304) is adapted to the outer wall of the side plate (301).
3. A CNC tooling fixture for quick fixture change according to claim 1, characterized in that: The number of sliding blocks (306) is several, and the several sliding blocks (306) are arranged in a linear array on the inner wall of the positioning frame (305).
4. A CNC tooling fixture for easy and quick fixture change according to claim 1, characterized in that: The centerline of the movable frame (303) and the centerline of the threaded rotating rod (302) are on the same straight line.
5. A CNC tooling fixture for easy and quick fixture change according to claim 1, characterized in that: The outer wall of the positioning frame (305) is provided with a limiting component (4). The limiting component (4) includes a limiting frame (401). The limiting frame (401) is fixedly connected to the outer wall of the positioning frame (305). An extension plate (402) is fixedly connected to the outer wall of the positioning frame (305). An elastic telescopic rod (403) is fixedly connected to the outer wall of the extension plate (402). A pressure plate (404) is fixedly connected to the outer wall of the elastic telescopic rod (403).
6. A CNC tooling fixture for easy and quick fixture change according to claim 5, characterized in that: The number of the limiting frames (401) is several, and the several limiting frames (401) are arranged in a linear array on the outer wall of the positioning frame (305).
7. A CNC tooling fixture for easy and quick fixture change according to claim 5, characterized in that: The sliding block (306) is slidably connected to the outer wall of the limiting frame (401), and the inner wall of the sliding block (306) is adapted to the outer wall of the limiting frame (401).