X-Turn numerical control machine tool measuring head device

Abstract

The utility model discloses a measuring head device of an X-Turn numerical control machine tool. The measuring head device comprises a device main body part and a measuring head part, the cutter handle is arranged at one end of the device body and fixedly connected with the device body, and a fixing screw hole is formed between the cutter handle and the device body. And an X-Turn unit is arranged at the other end of the device main body and is in threaded connection with the device main body. And a control box is arranged on the other side of the X-Turn unit and is in threaded connection with the X-Turn unit. The other end of the control box is provided with a probe mounting plate, and a signal lamp is arranged between the control box and the probe mounting plate. Probe mounting threaded holes are formed in the bottom of the probe mounting plate, a probe is arranged at the bottom end of the control box, a probe seat is arranged at one end of the probe, the probe seat is fixedly connected with the probe, and a probe head is arranged at the other end of the probe. According to the utility model, the X-axis rotation angle of the measuring head is flexibly adjusted to adapt to different measuring angles, key features of a complex workpiece can be rapidly measured without replacing the measuring head and clamping the workpiece again, and the measuring efficiency and precision are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool measurement technology, and in particular to an X-Turn CNC machine tool probe device. Background Technology

[0002] In-machine measurement technology refers to the process of real-time monitoring of critical dimensions of a workpiece using measuring equipment while the workpiece is clamped and being processed. This technology is widely used in CNC machining, relying on CNC machine tools and combining in-machine probes, in-machine tool setters, CNC measurement programs, and related software to achieve rapid detection of the geometric dimensions of the machined parts. By applying in-machine measurement technology, the influence of human factors on the measurement process can be effectively reduced, improving machining efficiency and accuracy.

[0003] However, in actual measurement processes, due to structural differences in machine-made probes, interference between the probe and the workpiece structure can easily occur, making it impossible to quickly measure certain key features. In such cases, it is often necessary to replace the probe or re-clamp the workpiece for measurement. However, these operations not only introduce consistency errors but also increase the workload of measurement, thereby reducing measurement efficiency. Summary of the Invention

[0004] The main purpose of this invention is to provide an X-Turn CNC machine tool probe device that can adapt to relatively complex measurement environments and effectively solve the technical problems raised in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An X-Turn CNC machine tool probe device includes a device body and a probe. One end of the device body is provided with a tool holder, which is threadedly connected to the device body through a fixing screw hole.

[0007] The other end of the main body of the device is provided with an X-Turn unit, which is connected to the main body of the device by a thread;

[0008] A control box is provided on the other side of the X-Turn unit, and the control box is connected to the X-Turn unit by threads;

[0009] The other end of the control box is provided with a probe mounting plate, and the bottom of the probe mounting plate is provided with a probe mounting threaded hole.

[0010] The bottom of the control box is equipped with a probe, one end of which is fixedly connected by a probe needle seat, and the other end is equipped with a probe probe.

[0011] An indicator light is provided between the control box and the probe mounting plate.

[0012] The X-Turn unit has a built-in drive harmonic motor, which is connected to the control box for signal transmission and is used to drive the probe to rotate around the X-axis.

[0013] The fixing screw hole is equipped with a movable fixing nut to enhance the connection stability between the tool holder and the main body of the device. The control box consists of a control box body, a control box top cover, and a control box base, which are connected by control box fixing bolts.

[0014] A probe mounting and positioning plate is movably connected to the base of the control box. A positioning trigger device and a probe force controller are fixed on the probe mounting and positioning plate, and a signal path is established with the circuit components.

[0015] The control box contains a signal processing and control board, which is connected to circuit components via wires.

[0016] The tool holder has an inner hole on the left side with a mounting thread, and the tool holder is connected to the tool holder head via the mounting thread.

[0017] The probe mounting plate is detachably connected to the probe via a probe mounting threaded hole, and is used to adapt to probes of different specifications.

[0018] The main body of the device is connected to the measuring base by bolts. The measuring base has a built-in battery compartment, which is opened and closed by a battery compartment switch to provide power to drive the harmonic motor.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This X-Turn CNC machine tool probe device can flexibly adjust the X-axis rotation angle of the probe to adapt to different measurement angles, effectively solving the problem of interference between traditional probes and workpieces due to structural differences. This device can quickly measure the key features of complex workpieces without changing the probe or reclamping the workpiece, greatly improving measurement efficiency. By reducing frequent probe changes and clamping adjustments, the impact of probe pre-stroke error and human error on the measurement process is significantly reduced, ensuring the consistency and accuracy of measurement results. Furthermore, the integration of the device with the CNC system enables real-time monitoring during machining, enhancing the automation and flexibility of the measurement process, thereby improving machining accuracy. This further promotes the improvement of CNC machining accuracy and efficiency, and has broad application prospects. Attached Figure Description

[0021] Figure 1 This is a front view schematic diagram of the overall structure of an X-Turn CNC machine tool probe device according to this utility model;

[0022] Figure 2This is a top view schematic diagram of the overall structure of the X-Turn CNC machine tool probe device of this utility model;

[0023] Figure 3 is a cross-sectional schematic diagram of the control box of the X-Turn CNC machine tool probe device of this utility model.

[0024] Figure 4 This is a schematic cross-sectional view of the overall structure of the X-Turn CNC machine tool probe device according to this utility model.

[0025] In the diagram: 1-Tool holder head; 2-Tool holder; 3-Battery compartment; 4-Probe base; 5-X-Turn unit; 6-Drive harmonic motor; 7-Control box; 8-Indicator light; 9-Control box top cover; 10-Control box base; 11-Probe base; 12-Probe mounting plate; 13-Probe probe; 14-Probe; 15-Fixing screw hole; 16-Battery compartment switch; 17-Control box fixing bolt; 18-Positioning trigger device; 19-Probe mounting positioning plate; 20-Circuit component; 21-Mounting thread; 22-Battery; 23-Probe force controller; 24-Main body; 25-Probe; 26-Signal processing and control board; 27-Fixing bolt; 28-Control box body; Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figure 1-4 As shown, this utility model specifically discloses an X-Turn CNC machine tool probe device, mainly composed of a tool holder 2, a probe base 4, an X-Turn unit 5, a control box 7, and a probe 14. The tool holder head 1 is threadedly connected to the tool holder 2, and the tool holder 2 is bolted to the probe base 4. Using a flathead screwdriver to turn the battery compartment switch 16, the battery compartment 3 is opened and a battery 22 is inserted to provide power support for the probe's operation. After installing the battery 22, the probe base 4 is threadedly connected to the X-Turn unit 5. The X-Turn unit 5 is equipped with a drive harmonic motor 6, which is fixedly connected to the X-Turn unit 5 and receives signal control from the control box 7. The control box 7 is threadedly connected to the X-Turn unit 5, allowing for direct disassembly and repair in case of malfunction. The control box 7 is the core working unit, and its internal structure includes a control box body 28, a control box top cover 9, a control box base 10, a probe mounting and positioning plate 19, a positioning trigger device 18, a probe force controller 23, a signal processing and control board 26, and circuit components 20, etc. The control box base 10 is fixedly connected to the probe mounting plate 12, and the probe mounting plate 12 has probe 14 mounting screw holes. The probe base 10 is threadedly connected to the probe mounting plate 12.

[0028] Using the coordinate system of the GF 5-axis Mikron MILL E 500U machine tool as a reference, after installing the machine tool probe, a tool coordinate system is established on the probe with the direction parallel to the machine tool coordinate system as the positive direction and the geometric center of the X-Turn unit as the origin. The function of the X-Turn unit is to allow the probe part of the probe device to rotate a fixed angle around the X-axis of its tool coordinate system. The main working component is a drive harmonic motor, which allows the probe to rotate within this range. The X-Turn unit drives the harmonic motor under the control of the control box, rotating it by the required angle according to the command signals from the control box.

[0029] The specific installation process of this utility model includes the following steps:

[0030] 1. Tool holder installation: Connect the tool holder head 1 to the tool holder 2 via threads, ensuring a secure connection. The tool holder 2 has an installation thread 24 in the inner hole on the left side, which connects to the tool holder head 1 via threads. During installation, pay attention to keeping the threads clean and lubricated to prevent damage.

[0031] 2. Probe Mount Installation: Connect the probe mount 4 to the tool holder 2 with bolts, ensuring that the probe mount 4 is installed stably and perpendicular to the tool holder 2. The installation position of the probe mount 4 should be adjusted according to the position of the machine tool spindle to ensure that the probe device is coaxial with the machine tool spindle after installation.

[0032] 3. Battery Installation: Use a flathead screwdriver to turn the battery compartment switch 16 to open the battery compartment 3 and insert the battery 22. The battery 22 should be securely installed and make good contact with the battery compartment 3. After installation, turn off the battery compartment switch 16 and ensure that the battery compartment 3 is well sealed to prevent dust and moisture from entering.

[0033] 4. X-Turn Unit Installation: Connect the probe holder 4 to the X-Turn unit 5 via threads. During installation, pay attention to the orientation and position of the X-Turn unit 5, ensuring that the output shaft of the drive harmonic motor 6 is aligned with the connection part of the probe head 25. After the X-Turn unit 5 is installed, preliminary angle adjustments are required to ensure that the probe head 25 can rotate freely within the predetermined range.

[0034] 5. Control Box Installation: Connect the control box 7 to the X-Turn unit 5 using threads. During installation, pay attention to the orientation and position of the control box 7, ensuring that the indicator light 8 faces upwards for easy observation. After installation, electrical connections are required. Connect the control box 7 to the electrical interface of the X-Turn unit 5 to ensure normal signal transmission.

[0035] This utility model requires debugging before use. The specific steps are as follows:

[0036] 1. Power On: After installation, first turn on the power to supply power to the device through battery compartment 3. At this time, indicator light 8 should light up, indicating that the device is powered on normally.

[0037] 2. Probe Calibration: Before using this invention for measurement, the probe 25 needs to be calibrated. Adjust the machine tool spindle to a suitable position and rotate the spindle angle calibration ball to calibrate a certain point. Calculate the coaxiality error based on the calibration data and compensate and correct it through the control box 7 to ensure that the coaxiality error between the probe 25 and the spindle is within the allowable range.

[0038] 3. Angle Adjustment: A command signal is sent via control box 7 to drive the harmonic motor 6 to rotate, adjusting the angle of probe 25. During adjustment, observe whether the rotation of probe 25 is smooth, and whether there is any jamming or abnormal noise. If any problems are found, promptly check the connection between X-Turn unit 5 and the drive harmonic motor 6 to ensure smooth rotation.

[0039] 4. Signal Transmission Test: During the debugging process, the signal transmission between control box 7 and the machine tool CNC system also needs to be tested. Test signals are sent through control box 7 to check whether the machine tool CNC system can correctly receive and display the measurement data. If the signal transmission is abnormal, the connection and parameter settings between control box 7 and the machine tool CNC system need to be checked to ensure stable and reliable signal transmission.

[0040] The specific measurement process of this utility model is as follows:

[0041] 1. Measurement Preparation: Based on the characteristics of the workpiece and the measurement requirements, adjust the angle of the probe 25 using the control box 7 to ensure the probe 25 is in a suitable position. During the adjustment process, refer to the indication of the indicator light 8 to ensure the device is working properly.

[0042] 2. Probe Installation and Adjustment: Install the probe 14 on the probe mounting plate 12 and secure it through the probe mounting threaded hole 21. During installation, pay attention to the angle and position of the probe 14 to ensure accurate contact between the probe 14 and the workpiece. After installation, adjust the force exerted by the probe 14 when in contact with the workpiece using the probe force controller 23 to ensure that the contact force between the probe 14 and the workpiece is within a reasonable range during measurement.

[0043] 3. Measurement Operation: Clamp the workpiece on the machine tool worktable and adjust its position so that the probe 25 can smoothly contact the part of the workpiece to be measured. Start the measurement program. The control box 7 drives the harmonic motor 6 to adjust the angle of the probe 25 according to the preset measurement path and angle for automatic measurement. During the measurement process, the positioning trigger device 18 monitors the contact between the probe 14 and the workpiece in real time. The signal processing and control board 26 processes and analyzes the measurement signal, generates measurement data, and transmits it to the machine tool CNC system through the control box 7.

[0044] 4. Measurement Result Processing: After the measurement is completed, the machine tool CNC system generates a workpiece dimension report and error analysis based on the received measurement data. If the measurement results do not meet the requirements, the angle and measurement path of the probe 25 can be adjusted through the control box 7, and the measurement can be repeated until the expected measurement accuracy is achieved.

[0045] This invention connects the tool holder 2 to the machine tool spindle structure and establishes information communication with the machine tool system through the control box 7. A point is calibrated by rotating the spindle angle calibration ball, and the coaxiality error is calculated based on the calibration data, compensating for and correcting the coaxiality error between the probe and the spindle. During actual measurement, the drive harmonic motor 6 can adapt to the measurement path according to the actual workpiece characteristics. This effectively solves the problem of interference between the traditional probe and the workpiece due to structural differences, significantly improving the flexibility and automation of on-machine measurement, thereby promoting further improvement in the accuracy and efficiency of CNC machining, and has broad application prospects.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A probe device for an X-Turn CNC machine tool, comprising a main body (24) and a probe (25), characterized in that: The device body (24) has a handle (2) at one end, and the handle (2) is threaded to the device body (24) through a fixing screw hole (15); The other end of the device body (24) is provided with an X-Turn unit (5), which is connected to the device body (24) by a thread; The X-Turn unit (5) is provided with a control box (7) on the other side, and the control box (7) is connected to the X-Turn unit (5) by threads; The other end of the control box (7) is provided with a probe mounting plate (12), and the bottom of the probe mounting plate (12) is provided with mounting threads (21). The bottom of the control box (7) is provided with a probe (14), one end of the probe (14) is fixedly connected through a probe needle seat (11), and the other end is provided with a probe probe (13). An indicator light (8) is provided between the control box (7) and the probe mounting plate (12).

2. The X-Turn CNC machine tool probe device according to claim 1, characterized in that: The X-Turn unit (5) has a built-in drive harmonic motor (6), which is connected to the control box (7) for driving the probe (25) to rotate around the X-axis.

3. The X-Turn CNC machine tool probe device according to claim 1, characterized in that: The fixed screw hole (15) is provided with a movable fixed nut (27) to enhance the connection stability between the handle (2) and the device body (24).

4. The X-Turn CNC machine tool probe device according to claim 1, characterized in that: The control box (7) consists of a control box body (28), a control box top cover (9), and a control box base (10), which are connected by control box fixing bolts (17).

5. The X-Turn CNC machine tool probe device according to claim 4, characterized in that: The control box base (10) is movably connected to a probe mounting and positioning plate (19), and the probe mounting and positioning plate (19) is fixed with a positioning trigger device (18) and a probe force controller (23), and establishes a signal path with the circuit element (20).

6. The X-Turn CNC machine tool probe device according to claim 4, characterized in that: The control box (7) is equipped with a signal processing and control board (26), which is connected to the circuit element (20) through wires.

7. The X-Turn CNC machine tool probe device according to claim 1, characterized in that: The tool holder (2) has an installation thread (21) in the inner hole on the left side, and the tool holder (2) is threadedly connected to the tool holder head (1) through the installation thread (21).

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