A tool quick change device for numerical control machine tool
By designing an automated tool changing device, which utilizes a circular tool magazine, an electric ring clamp, and an electromagnet to automatically fix the tool, the problem of low tool changing efficiency in CNC machine tools is solved, and machining efficiency and safety are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANXI (SUZHOU) INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-06-02
AI Technical Summary
The current CNC machine tool tool changing relies on manual operation, which is inefficient and increases the labor intensity and danger for operators, especially in high-speed and high-precision machining, which can easily lead to machining interruption.
A tool quick change device was designed, comprising a circular tool magazine, an electric ring clamp, a cylinder, and an electromagnet. The clamp is driven by a motor and a cylinder to automatically change tools, and the tools are fixed to the CNC machine tool mechanism by magnets.
Automated tool changing has been achieved, which has improved processing efficiency, reduced the risks of manual operation, and ensured the continuity and quality of processing.
Smart Images

Figure CN224310152U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC machine tool technology, specifically to a quick tool changing device for CNC machine tools. Background Technology
[0002] CNC machine tools are an important type of processing equipment in modern manufacturing. They achieve automated processing through computer program control, enabling them to efficiently and accurately complete the manufacturing tasks of complex parts. They are widely used in fields such as machining, mold making, and aerospace, and are an indispensable tool in industrial production.
[0003] Existing CNC machine tools typically use the relative motion between the tool and the workpiece to complete machining tasks. Specifically, the CNC system controls the tool's feed rate, rotation speed, and motion trajectory, while simultaneously fixing or rotating the workpiece to achieve processes such as cutting, drilling, and milling. This working method requires frequent tool changes to adapt to different machining needs.
[0004] In actual machining processes, existing CNC machine tools require the use of various cutting tools to complete different processes, such as cutting, drilling, and tapping. However, current tool changing usually relies on manual operation, which is not only inefficient but also increases the labor intensity and danger for operators. Especially in high-speed and high-precision machining scenarios, manual tool changing can easily lead to machining interruptions, affecting production efficiency and machining quality. Utility Model Content
[0005] The purpose of this invention is to provide a quick tool changing device for CNC machine tools, which solves the problem that tool changing in the prior art usually relies on manual operation, which is not only inefficient, but also increases the labor intensity and danger of operators.
[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:
[0007] A quick-change tool device for CNC machine tools includes a body; a work plate is fixedly connected inside the body; a workpiece is provided at the top of the work plate; a CNC machine tool mechanism is installed inside the body; a No. 1 motor is fixedly connected to the top of the work plate; a circular tool magazine is fixedly connected to the output end of the No. 1 motor; a tool is installed at the top of the circular tool magazine, and multiple tools are arranged on the circular tool magazine; a magnetic plate is fixedly connected to the bottom end of the tool; and a changing unit is provided inside the body.
[0008] As a further embodiment of this utility model: the replacement unit includes a first cylinder; the first cylinder is fixedly connected inside the machine body; a second motor is fixedly connected to the bottom end of the first cylinder; an electric ring clamp is fixedly connected to the output end of the second motor, and the electric ring clamp is located on the side close to the cutting tool.
[0009] As a further embodiment of this utility model: a second cylinder is fixedly connected to the top of the working plate; a positioning clamp is fixedly connected to the side end of the second cylinder, and the positioning clamp is located on the side close to the workpiece.
[0010] As a further embodiment of this utility model: a water tank is fixedly connected inside the machine body; a water spray hose is fixedly connected to the side end of the water tank, and the water spray hose is located on the side close to the CNC machine tool mechanism; a waste trough is opened inside the machine body.
[0011] As a further embodiment of this utility model: an electric guide rail is fixedly connected to the inner side wall of the top of the machine body; the bottom end of the electric guide rail is slidably connected to a CNC machine tool mechanism.
[0012] The beneficial effects of this utility model are as follows: The electric ring clamp is moved downward by the No. 1 cylinder to clamp and fix the tool. The electric ring clamp and the tool are moved upward by the No. 1 cylinder. The electric ring clamp and the tool are rotated together by the No. 2 motor to the bottom of the CNC machine tool mechanism. The No. 1 cylinder causes the top of the tool to be inserted into the interior of the CNC machine tool mechanism. The electromagnet attracts and fixes the magnetic plate on the top of the tool, thereby fixing the tool to the CNC machine tool mechanism. There is no need to rely on manual replacement, and the danger of manual labor is avoided. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the circular tool magazine structure in this utility model;
[0016] Figure 3 This is a utility model Figure 1 Enlarged view of point A in the middle;
[0017] In the diagram: 1. Machine body; 2. Work plate; 3. Workpiece; 4. CNC machine tool mechanism; 5. Motor No. 1; 6. Circular tool magazine; 7. Tool; 8. Magnet plate; 9. Scrap trough; 10. Cylinder No. 1; 11. Motor No. 2; 12. Electric ring clamp; 13. Cylinder No. 2; 14. Positioning clamp; 15. Water tank; 16. Water spray hose; 17. Electric guide rail. Detailed Implementation
[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0019] like Figures 1-3 As shown, a quick tool changing device for CNC machine tools includes a body 1; a work plate 2 is fixedly connected inside the body 1; a machining part 3 is provided at the top of the work plate 2; a CNC machine tool mechanism 4 is installed inside the body 1; a first motor 5 is fixedly connected to the top of the work plate 2; a circular tool magazine 6 is fixedly connected to the output end of the first motor 5; a tool 7 is installed at the top of the circular tool magazine 6, and various tools 7 are arranged on the circular tool magazine 6; a magnetic plate 8 is fixedly connected to the bottom end of the tool 7; and a changing unit is provided inside the body 1.
[0020] During operation, the workpiece 3 is placed on the work plate 2. Different cutting tools 7 are required for different processing needs. Multiple sets of cutting tools 7 are installed on the circular tool magazine 6. The circular tool magazine 6 can be rotated by motor 5 to facilitate tool replacement. The electric ring clamp 12 is moved downwards by cylinder 10 to clamp and fix the cutting tool 7. Then, cylinder 10 moves the electric ring clamp 12 and the cutting tool 7 upwards, at which point the cutting tool 7 disengages from the circular tool magazine 6. Motor 11 then moves the electric ring clamp 12 and the cutting tool 7 upwards. Together, they rotate to the bottom of the CNC machine tool mechanism 4. The first cylinder 10 inserts the top of the tool 7 into the interior of the CNC machine tool mechanism 4. The CNC machine tool mechanism 4 is equipped with an electromagnet. The electromagnet attracts and fixes the magnetic plate 8 on the top of the tool 7, thereby fixing the tool 7 onto the CNC machine tool mechanism 4. At this time, the installation of the tool 7 is completed. If it needs to be replaced, the tool 7 on the CNC machine tool mechanism 4 can be removed by the second motor 11 and the electric ring clamp 12. Then, other tools 7 can be installed on the CNC machine tool mechanism 4. There is no need to rely on manual replacement, and the danger of manual replacement is avoided.
[0021] The replacement unit includes a first cylinder 10; the first cylinder 10 is fixed inside the machine body 1; a second motor 11 is fixed to the bottom end of the first cylinder 10; an electric ring clamp 12 is fixed to the output end of the second motor 11, and the electric ring clamp 12 is located on the side close to the tool 7.
[0022] The electric ring clamp 12 is moved downward by cylinder 10 to clamp and fix the tool 7. Then, cylinder 10 moves the electric ring clamp 12 and the tool 7 upward. At this time, the tool 7 is disengaged from the inside of the circular tool magazine 6. The electric ring clamp 12 and the tool 7 are rotated together by motor 11 to the bottom of the CNC machine tool mechanism 4. With the help of motor 5 and the circular tool magazine 6, the tool 7 can be easily replaced.
[0023] The top of the work plate 2 is fixedly connected to a second cylinder 13; the side end of the second cylinder 13 is fixedly connected to a positioning clamp 14, which is located on the side close to the workpiece 3.
[0024] After the workpiece 3 is placed on the work plate 2, the positioning clamp 14 is moved toward the workpiece 3 by the second cylinder 13. The positioning clamp 14 can fix the position of the workpiece 3 and prevent the workpiece 3 from changing position during the processing, which would affect the normal processing of the CNC machine tool mechanism 4.
[0025] A water tank 15 is fixedly connected inside the machine body 1; a water spray hose 16 is fixedly connected to the side end of the water tank 15, and the water spray hose 16 is located on the side close to the CNC machine tool mechanism 4; a waste trough 9 is opened inside the machine body 1.
[0026] Water tank 15 stores water. The water pump inside water tank 15 draws water into water spray hose 16 and sprays it onto the cutting tool 7. This makes it easier for the cutting tool 7 to process the workpiece 3 and cools the cutting tool 7. The waste and wastewater generated by the cutting tool 7 in processing the workpiece 3 can be stored in the waste tank 9 and disposed of in a unified manner after the work is completed.
[0027] An electric guide rail 17 is fixedly connected to the inner side wall of the top of the machine body 1; the bottom end of the electric guide rail 17 is slidably connected to the CNC machine tool mechanism 4.
[0028] The position of the CNC machine tool mechanism 4 can be moved according to the processing requirements to meet the moving processing operation of the workpiece 3. The CNC machine tool mechanism 4 can be moved by the electric guide rail 17.
[0029] The working principle of this utility model is as follows: During operation, the workpiece 3 is placed on the work plate 2. Different cutting tools 7 are required for different processing needs. Multiple sets of cutting tools 7 are installed on the circular tool magazine 6. The circular tool magazine 6 can be rotated by the first motor 5 to facilitate the replacement of cutting tools 7. The electric ring clamp 12 is moved downward by the first cylinder 10 to clamp and fix the cutting tools 7. Then, the electric ring clamp 12 and the cutting tools 7 are moved upward by the first cylinder 10. At this time, the cutting tools 7 are disengaged from the interior of the circular tool magazine 6. The electric ring clamp 12 and the cutting tools 7 are rotated together by the second motor 11 to a position below the CNC machine tool mechanism 4. The first cylinder 10 inserts the top of the cutting tools 7 into the interior of the CNC machine tool mechanism 4. The CNC machine tool mechanism 4 is equipped with an electromagnet. The electromagnet attracts and fixes the magnetic plate 8 on the top of the cutting tools 7, thereby fixing the cutting tools 7 onto the CNC machine tool mechanism 4. At this time, the installation of cutting tools 7 is completed. If replacement is required, it can be done by the second motor 11. The electric ring clamp 12 removes the cutting tool 7 from the CNC machine tool mechanism 4, and then installs other cutting tools 7 onto the CNC machine tool mechanism 4. This eliminates the need for manual replacement and avoids the dangers of manual labor. After the workpiece 3 is placed on the work plate 2, the positioning clamp 14 is moved towards the workpiece 3 by the second cylinder 13. The positioning clamp 14 can fix the position of the workpiece 3, preventing the workpiece 3 from changing position during processing and affecting the normal processing of the CNC machine tool mechanism 4. The water tank 15 stores water, and the water pump inside the water tank 15 draws water into the spray hose 16 to spray it onto the cutting tool 7, which facilitates the cutting tool 7 to process the workpiece 3 and cools the cutting tool 7. The waste material and wastewater generated by the cutting tool 7 in processing the workpiece 3 can be stored in the waste tank 9 for unified disposal after the work is completed. The position of the CNC machine tool mechanism 4 can be moved according to the processing requirements to meet the moving processing operation of the workpiece 3. The CNC machine tool mechanism 4 can be moved via the electric guide rail 17.
[0030] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.
Claims
1. A quick-change tool device for CNC machine tools, characterized in that, The machine includes a body (1); a work plate (2) is fixedly connected inside the body (1); a workpiece (3) is provided at the top of the work plate (2); a CNC machine tool mechanism (4) is installed inside the body (1); a No. 1 motor (5) is fixedly connected to the top of the work plate (2); a circular tool magazine (6) is fixedly connected to the output end of the No. 1 motor (5); a tool (7) is installed at the top of the circular tool magazine (6), and various tools (7) are arranged on the circular tool magazine (6); a magnet plate (8) is fixedly connected to the bottom end of the tool (7); and a replacement unit is provided inside the body (1).
2. The quick-change tool device for CNC machine tools according to claim 1, characterized in that, The replacement unit includes a first cylinder (10); the first cylinder (10) is fixed inside the machine body (1); the bottom end of the first cylinder (10) is fixedly connected to a second motor (11); the output end of the second motor (11) is fixedly connected to an electric ring clamp (12), which is located on the side close to the tool (7).
3. The quick-change tool device for CNC machine tools according to claim 1, characterized in that, The top of the work plate (2) is fixedly connected to a second cylinder (13); the side end of the second cylinder (13) is fixedly connected to a positioning clamp (14), which is located on the side close to the workpiece (3).
4. The quick-change tool device for CNC machine tools according to claim 1, characterized in that, A water tank (15) is fixedly connected inside the machine body (1); a water spray hose (16) is fixedly connected to the side end of the water tank (15), and the water spray hose (16) is located on the side close to the CNC machine tool mechanism (4); a waste trough (9) is opened inside the machine body (1).
5. A quick-change tool device for CNC machine tools according to claim 1, characterized in that, An electric guide rail (17) is fixedly connected to the inner side wall of the top of the machine body (1); the bottom end of the electric guide rail (17) is slidably connected to the CNC machine tool mechanism (4).