Tool setting device of numerical control machine tool

The tool setting device driven by an electric telescopic rod enables precise position adjustment and automated control of the tool setting instrument, solving the problems of cumbersome and inaccurate tool setting methods in traditional CNC machine tools, and improving machining accuracy and efficiency.

CN224144152UActive Publication Date: 2026-04-21HEFEI LIJIE CNC EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI LIJIE CNC EQUIP CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Traditional CNC machine tool tool setting methods are cumbersome to operate and difficult to ensure high precision, which cannot meet the high efficiency and high precision requirements of modern CNC machine tools.

Method used

The tool setting device, driven by an electric telescopic rod, uses a combination of electric telescopic rod, gears, and threaded rods to adjust the horizontal and vertical positions of the tool setting instrument. Combined with sensors, it monitors and feeds data back to the CNC system in real time, achieving automated control.

Benefits of technology

It improves the accuracy and efficiency of tool setting, ensures the stability and reliability of the tool setting device, simplifies the operation process, and improves machining quality and efficiency.

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Abstract

The utility model relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool tool setting device which comprises a base, a first electric telescopic rod is installed at one end of the top of the base, and according to the numerical control machine tool tool setting device, the telescopic action of a second electric telescopic rod is transmitted to a rack through a connecting lug to push the rack to do linear motion on a sliding rail; when the rack is driven by the second electric telescopic rod to move, the gear meshed with the rack can drive the threaded rod to rotate, the threaded rod rotates to drive the movable block to move in the axial direction of the threaded rod, and then the horizontal position of the tool setting gauge is driven to be adjusted through the supporting rod. The telescopic action of the first electric telescopic rod can drive the movable plate to move in the vertical direction to achieve height adjustment, the fixed plate and the supporting frame provide a stable supporting structure for the movable plate, and the sliding fit of the sliding block on the supporting frame ensures the stable movement of the movable plate driven by the first electric telescopic rod. The stability and reliability of the tool setting device are improved, operation is convenient, and practicability is better.
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Description

Technical Field

[0001] This application relates to the technical field of CNC machine tools, and in particular to a tool setting device for CNC machine tools. Background Technology

[0002] CNC machine tools are short for numerical control machine tools. They are automated machine tools equipped with a program control system. This control system can logically process programs with control codes or other symbolic instructions, decode them and represent them with coded numbers, input them to the CNC device through an information carrier, and after calculation and processing, the CNC device sends out various control signals to control the machine tool's actions. It automatically processes parts according to the shape and size required by the drawings. Compared with traditional machine tools, the biggest feature of CNC machine tools is their high degree of automation and precision.

[0003] Traditional CNC machine tool tool setting methods rely on manual tool setting. Operators manually move the tool or a tool setting device to touch or cut the workpiece, and then judge the correctness of the tool setting by observation. This operation is cumbersome and inconvenient, and it is difficult to ensure the accuracy of tool setting. It is difficult to meet the high precision and high efficiency requirements of modern CNC machine tools, and therefore has certain drawbacks. Therefore, in order to solve the above problems, this application provides a CNC machine tool tool setting device. Utility Model Content

[0004] The purpose of this invention is to provide a tool setting device for CNC machine tools to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a CNC machine tool tool setting device, comprising a base, a first electric telescopic rod mounted on one top end of the base, a movable plate mounted on the movable end of the first electric telescopic rod, a second electric telescopic rod mounted on the outer end of the movable plate, a slide rail mounted on the outer side of the movable plate near the second electric telescopic rod, a rack mounted on the slide rail, a fixed frame mounted on the outer side of the movable plate near the slide rail, a threaded rod mounted between the inner sidewalls of the fixed frame, a movable block mounted on the outer ring surface of the threaded rod, a support rod mounted on the outer side of the movable block, and a tool setting device mounted on the outer end of the support rod away from the movable block.

[0006] Preferably, a connecting lug is installed on the movable end of the second electric telescopic rod, and one end of the connecting lug is connected to one end of the rack.

[0007] Preferably, one end of the threaded rod extends through the outside of the fixed frame and is fitted with a gear, which meshes with the rack, and the outer ring surface of the threaded rod is threadedly connected to the inside of the movable block.

[0008] Preferably, a fixing plate is installed on the top of the base near the first electric telescopic rod, and support frames are symmetrically installed on both outer ends of the fixing plate. Slider blocks are installed on both outer ends of the movable plate and on the two support frames.

[0009] Preferably, an organism is mounted on the top end of the base away from the fixing plate, and a mounting seat is provided on the outside of the organism. Four sets of fixing ears are mounted in a circular array on the outside of the mounting seat. Fastening bolts are mounted on the fixing ears, and a limit plate is mounted on one end of the fastening bolt.

[0010] Preferably, a sensor is embedded at the outer center of the mounting base.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] This CNC machine tool tool setting device transmits the extension and retraction of the second electric telescopic rod to the rack via a connecting lug, pushing the rack to move linearly on the slide rail. When the rack moves under the drive of the second electric telescopic rod, the gear meshing with it drives the threaded rod to rotate. The rotation of the threaded rod drives the movable block to move axially along the threaded rod, which in turn drives the horizontal position adjustment of the tool setting device via the support rod. The first electric telescopic rod is activated by a switch, and its extension and retraction can drive the movable plate to move vertically to achieve height adjustment. The fixed plate and support frame provide a stable support structure for the movable plate. The sliding engagement of the slider on the support frame ensures the smooth movement of the movable plate under the drive of the first electric telescopic rod, improving the stability and reliability of the tool setting device, making it convenient to operate and more practical. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a CNC machine tool tool setting device according to an embodiment of this application;

[0014] Figure 2 This is a schematic diagram on the right side of the overall structure of a tool setting device for a CNC machine tool according to an embodiment of this application;

[0015] Figure 3 This is a schematic diagram of the overall structure of a tool setting device for a CNC machine tool according to an embodiment of this application.

[0016] Figure 4 This is a schematic diagram of part A of a CNC machine tool tool setting device according to an embodiment of this application;

[0017] Figure 5 This is a schematic diagram of part B of a CNC machine tool tool setting device according to an embodiment of this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Base; 2. First electric telescopic rod; 3. Movable plate; 4. Second electric telescopic rod; 5. Slide rail; 6. Rack; 7. Fixing frame; 8. Threaded rod; 9. Movable block; 10. Support rod; 11. Tool setter; 12. Connecting ear; 13. Gear; 14. Fixing plate; 15. Supporting frame; 16. Slider; 17. Body; 18. Mounting base; 19. Sensor; 20. Fixing ear; 21. Fastening bolt; 22. Limiting plate. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1 - Figure 5 This application will be described in further detail.

[0020] A tool setting device for a CNC machine tool, as shown in the reference. Figure 1 - Figure 5 The system includes a base 1, a first electric telescopic rod 2 mounted on one top end of the base 1, a movable plate 3 mounted on the movable end of the first electric telescopic rod 2, a second electric telescopic rod 4 mounted on the outer end of the movable plate 3, a slide rail 5 mounted on the outer side of the movable plate 3 near the second electric telescopic rod 4, a rack 6 mounted on the slide rail 5, a fixing frame 7 mounted on the outer side of the movable plate 3 near the slide rail 5, a threaded rod 8 mounted between the inner sidewalls of the fixing frame 7, a movable block 9 mounted on the outer ring surface of the threaded rod 8, a support rod 10 mounted on the outer side of the movable block 9, and a tool setter 11 mounted on the outer end of the support rod 10 away from the movable block 9.

[0021] Reference Figure 1 - Figure 4 A connecting lug 12 is installed on the movable end of the second electric telescopic rod 4. One end of the connecting lug 12 is connected to one end of the rack 6. The telescopic movement of the second electric telescopic rod 4 is transmitted to the rack 6 through the connecting lug 12, pushing the rack 6 to move linearly on the slide rail 5, thereby driving the gear 13 and the threaded rod 8 to rotate, realizing the horizontal position adjustment of the tool setter 11. One end of the threaded rod 8 passes through the outside of the fixed frame 7 and is fitted with the gear 13. The gear 13 meshes with the rack 6. The outer ring surface of the threaded rod 8 is threadedly connected to the inside of the movable block 9. When the rack 6 moves under the drive of the second electric telescopic rod 4, the gear 13 meshing with it will drive the threaded rod 8 to rotate. Since the threaded rod 8 and the movable block 9 are threadedly connected, the rotation of the threaded rod 8 will drive the movable block 9 to move along the axial direction of the threaded rod 8, thereby driving the tool setter 11 to perform precise position adjustment through the support rod 10.

[0022] Reference Figure 1 - Figure 3A fixed plate 14 is installed on the top of the base 1 near the first electric telescopic rod 2. Support frames 15 are symmetrically installed on both ends of the fixed plate 14. Slider 16 is installed on both ends of the movable plate 3 and on the two support frames 15. The telescopic movement of the first electric telescopic rod 2 can drive the movable plate 3 to move in the vertical direction to achieve height adjustment. The fixed plate 14 and the support frames 15 provide a stable support structure for the movable plate 3. The sliding cooperation of the slider 16 on the support frame 15 ensures the smooth movement of the movable plate 3 under the drive of the first electric telescopic rod 2, and improves the stability and reliability of the tool setting device.

[0023] Reference Figure 1 - Figure 5 The body 17 is installed on the top of the base 1 away from the fixed plate 14. The body 17 is provided with a mounting seat 18. Four sets of fixing ears 20 are installed in a ring array on the outside of the mounting seat 18. Fastening bolts 21 are installed on the fixing ears 20. A limit plate 22 is installed on the outside of the fastening bolt 21. By rotating the fastening bolt 21, the limit plate 22 can be driven to move relative to each other, which is convenient for limiting and fixing the workpiece.

[0024] Reference Figure 2 - Figure 3 A sensor 19 is embedded in the outer center of the mounting base 18. The sensor 19 is used to monitor parameters such as position and pressure during the tool setting process in real time and feed the data back to the CNC system to realize automated control and precision adjustment of the machining process, thereby improving machining efficiency and quality.

[0025] The implementation principle of a CNC machine tool tool setting device according to an embodiment of this application is as follows: When using the device, the first electric telescopic rod 2 and the second electric telescopic rod 4 are preferably of type LX600. Both the first electric telescopic rod 2 and the second electric telescopic rod 4 are electrically connected to an external power supply via a switch. The second electric telescopic rod 4 is activated by the switch, and the telescopic movement of the second electric telescopic rod 4 is transmitted to the rack 6 through the connecting lug 12, pushing the rack 6 to move linearly on the slide rail 5. When the rack 6 moves under the drive of the second electric telescopic rod 4, the gear 13 meshing with it will drive the threaded rod 8 to rotate. Since the threaded rod 8 and the movable block 9 are connected by a thread, the rotation of the threaded rod 8 will drive the movable block 9 to move along the axial direction of the threaded rod 8, thereby adjusting the horizontal position of the tool setting device 11 through the support rod 10. The switch activates the first electric telescopic rod 2. The telescopic action of the first electric telescopic rod 2 can drive the movable plate 3 to move vertically to achieve height adjustment. The fixed plate 14 and the support frame 15 provide a stable support structure for the movable plate 3. The sliding cooperation of the slider 16 on the support frame 15 ensures the smooth movement of the movable plate 3 under the drive of the first electric telescopic rod 2, improving the stability and reliability of the tool setting device. By rotating the fastening bolt 21, the limiting plate 22 can be driven to move relative to each other, which facilitates the limiting and fixing of the workpiece. The sensor 19 is used to monitor the position, pressure and other parameters during the tool setting process in real time and feed the data back to the CNC system to realize the automated control and precision adjustment of the machining process, improve machining efficiency and quality, and make the operation convenient and more practical. The thread opening angle of the fastening bolt 21 is 20 degrees. The thread self-locking condition needs to meet the following formula calculation: self-locking condition = friction coefficient x tan (helix angle) ≥ 1.

[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0027] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tool setting device for a numerically controlled machine tool comprising a base (1), characterised in that: A first electric telescopic rod (2) is installed at one top end of the base (1). A movable plate (3) is installed on the movable end of the first electric telescopic rod (2). A second electric telescopic rod (4) is installed on the outer end of the movable plate (3). A slide rail (5) is installed on the outer side of the movable plate (3) near the second electric telescopic rod (4). A rack (6) is installed on the slide rail (5). A fixing frame (7) is installed on the outer side of the movable plate (3) near the slide rail (5). A threaded rod (8) is installed between the inner sidewalls of the fixing frame (7). A movable block (9) is installed on the outer ring surface of the threaded rod (8). A support rod (10) is installed on the outer side of the movable block (9). A tool setter (11) is installed on the outer end of the support rod (10) away from the movable block (9).

2. The tool setting device of claim 1, wherein: A connecting ear (12) is installed on the movable end of the second electric telescopic rod (4), and one end of the connecting ear (12) is connected to one end of the rack (6).

3. The tool setting device for a numerically controlled machine tool according to claim 1, wherein: One end of the threaded rod (8) extends through the outside of the fixed frame (7) and a gear (13) is installed thereon. The gear (13) meshes with the rack (6). The outer ring surface of the threaded rod (8) is threadedly connected to the inside of the movable block (9).

4. The tool setting device of claim 1, wherein: A fixing plate (14) is installed on the top of the base (1) near the first electric telescopic rod (2). Support frames (15) are symmetrically installed on both outer ends of the fixing plate (14). Slider (16) is installed on both outer ends of the movable plate (3) and on both support frames (15).

5. The tool setting device of claim 1, wherein: An organism (17) is installed at the top of the base (1) away from the fixed plate (14). An installation seat (18) is provided on the outside of the organism (17). Four sets of fixing ears (20) are installed in a ring array on the outside of the installation seat (18). Fastening bolts (21) are installed on the fixing ears (20). A limit plate (22) is installed on one end of the fastening bolts (21).

6. A tool setting device for a numerically controlled machine tool according to claim 5, characterised in that: A sensor (19) is embedded in the outer center of the mounting base (18).