Cutter calibrator of numerical control machine tool

Abstract

The utility model provides a numerical control machine tool cutter calibrator, which relates to the technical field of numerical control machining and comprises a main cylinder, a base and an acquisition seat, the base and the acquisition seat are respectively arranged at two ends of the main cylinder, an angle shaft is arranged between the base and the main cylinder, and a longitudinal rail shaft is arranged between the acquisition seat and the main cylinder in a penetrating manner; one end of the angle shaft is fixed with the base, and the surface of the other end is slotted with an insection groove; the beneficial effects of the utility model are that the angle shaft and the longitudinal rail shaft which are arranged transversely and longitudinally are matched with the brake structures arranged in the main cylinder and the acquisition seat, so that the positions of the transverse shaft and the longitudinal shaft of the acquisition seat are adjusted, and distance measurement is carried out through optical ray contact reflection by utilizing ray heads arranged on the acquisition seat and the crank rail; therefore, the calibrator can be installed outside the numerical control machine tool cutter for real-time rapid detection, a traditional detection mode is replaced to complete the calibration of the cutter, and the applicability and the practicability of the cutter calibrator are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control processing, and relates to a tool checker for a numerical control machine tool. Background Art

[0002] The positioning and tool setting of the CNC machine tool has a decisive influence on the machining accuracy of the workpiece. During the machining process of the workpiece, auxiliary time such as workpiece loading and unloading and tool adjustment accounts for a considerable proportion of the machining cycle. The adjustment of the tool is time-consuming and labor-intensive, and it is not easy to be accurate. Finally, trial cutting is required. Statistics show that for the machining of a workpiece, pure maneuvering time accounts for only about 55% of the total time, and auxiliary time such as clamping and tool setting accounts for 45%.

[0003] The tool setting system based on CNC machine tools usually needs to calibrate the position and size of the tool in the early stage of processing. The traditional method is to use a ruler tool for manual inspection or a tapered ring gauge for inspection. If the tool needs to be re-calibrated during the processing interval, the above manual method is time-consuming and labor-intensive, affecting the processing progress. The standards and consistency of the techniques in the previous and subsequent orders will affect the calibration results. Utility Model Content

[0004] In view of the above technical problems existing in the prior art, a tool checker for a numerically controlled machine tool is provided.

[0005] The purpose and effect of the utility model are achieved by the following specific technical means:

[0006] A tool checker for a numerically controlled machine tool comprises a main cylinder, a machine base and a collection base, wherein the machine base and the collection base are respectively arranged at two ends of the main cylinder, an angular axis is arranged between the machine base and the main cylinder, and a longitudinal rail axis is arranged between the collection base and the main cylinder;

[0007] One end of the angle shaft is fixed to the machine base, and the other end surface is grooved with a tooth groove. The main cylinder is rotatably provided with a transmission gear handle group meshing with the tooth groove. The transmission gear handle group includes a drive motor and a gear shaft body matched with axial transmission.

[0008] The collecting seat is in sliding cooperation with the longitudinal rail shaft, a driving motor and a screw shaft are arranged in the collecting seat, and the screw shaft extends to the longitudinal rail shaft end, a displacement disk is fixed inside between the longitudinal rail shaft and the main barrel, and the screw shaft passes through the displacement disk and is in spiral cooperation with the displacement disk;

[0009] A crank machine rail is fixed on the outer side of the collecting seat, and axially matching ray heads are arranged on the inner side of the crank machine rail and on one side of the collecting seat relative to the crank machine rail.

[0010] Furthermore, an angular displacement sensor is provided on the transmission gear handle group.

[0011] Furthermore, the ray head, the angular displacement sensor and the drive motor are all connected in series through an external PLC system.

[0012] Furthermore, the longitudinal depth of the spiral fit between the screw shaft and the displacement disk is greater than the sliding distance between the longitudinal rail shaft and the collection seat.

[0013] Furthermore, the fixing points of the crank rail and the collection seat are aligned with the axis of the ray head.

[0014] Furthermore, an angle steel piece is fixedly arranged on the machine base.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] This CNC machine tool tool verifier uses horizontal and vertical angular axes and longitudinal rail axes, and cooperates with brake structures set in the main cylinder and the collection seat to achieve position adjustment of the horizontal and longitudinal axes of the collection seat, and uses a ray head set on the collection seat and the crank machine rail to perform distance measurement through optical ray contact reflection, so that the verifier can be installed on the outside of the CNC machine tool tool for real-time rapid detection, so as to replace the traditional detection method to complete the calibration of the tool, thereby improving the applicability and practicality of the tool verifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal plane structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the displacement state of the longitudinal rail axis of the utility model.

[0020] Markings in the figure: 1-main cylinder; 2-machine base; 3-collection base; 4-crank machine rail; 5-ray head; 6-longitudinal rail axis; 7-angle axis; 8-angle steel piece; 9-drive motor; 10-screw shaft; 11-transmission gear handle group; 12-angular displacement sensor; 13-displacement disk; 14-tooth groove. DETAILED DESCRIPTION

[0021] See also Figure 1-3 , the embodiments of the utility model are further described;

[0022] A tool checker for a numerically controlled machine tool comprises a main cylinder 1, a machine base 2 and a collection base 3, wherein the machine base 2 and the collection base 3 are respectively arranged at two ends of the main cylinder 1, an angle shaft 7 is arranged between the machine base 2 and the main cylinder 1, and a longitudinal rail shaft 6 is arranged between the collection base 3 and the main cylinder 1;

[0023] One end of the angular shaft 7 is fixed to the machine base 2, and the other end surface is grooved with a tooth groove 14. A transmission gear handle group 11 meshing with the tooth groove 14 is rotatably arranged inside the main barrel 1. The transmission gear handle group 11 includes a drive motor and a gear shaft body matched with axial transmission;

[0024] The collecting seat 3 is slidably matched with the longitudinal rail shaft 6. The collecting seat 3 is provided with a driving motor 9 and a screw shaft 10 for transmission matching, and the screw shaft 10 extends to the end of the longitudinal rail shaft 6. A displacement disk 13 is fixed inside the longitudinal rail shaft 6 and the main barrel 1, and the screw shaft 10 passes through the displacement disk 13 and is spirally matched with it.

[0025] A crank rail 4 is fixed to the outside of the collecting seat 3 , and an axially matching ray head 5 is arranged on the inside of the crank rail 4 and on one side of the collecting seat 3 opposite to the crank rail 4 .

[0026] The tool checker is composed of a main barrel 1, a machine base 2 and a collecting base 3 arranged in an axial direction, wherein the end of the machine base 2 is used as the assembly end with the machine tool structure, and the angular position between the machine base 2 and the main barrel 1 is adjusted by the brake of the transmission gear handle group 11. The transmission gear handle group 11 drives the axial rotation of the gear shaft body through the driving motor, and utilizes the meshing cooperation between the gear shaft body and the tooth groove 14 to carry out the axial movement of the main barrel 1 along the angular axis 7;

[0027] At the same time, the height position of the collection seat 3 relative to the main barrel 1 is driven by the brake of the driving motor 9 to drive the screw shaft 10 to axially transmit, and cooperates with the connection between the screw shaft 10 and the displacement disk 13 to drive the collection seat 3 to perform synchronous longitudinal sliding displacement along the longitudinal rail axis 6 when the screw shaft 10 performs relative longitudinal rotation along the displacement disk 13, so as to adjust the height and angle position of the ray head 5 on the collection seat 3;

[0028] During the inspection, the intersection midpoint of the two ends of the ray head 5 corresponds to the position of the tool to be inspected. The distance measurement inspection principle is based on the ray grating inspection method. The ray head 5 is used to emit light to the tool surface, and the distance is calculated through reflection delay. The cross-sectional position size of the tool point position is obtained through the reflection distance difference data of the two ends of the ray head 5. At the same time, when the main cylinder 1 rotates, the ray does not contact the tool. After the ray corresponding position of the ray head 5 contacts, the signal of the undetected tool is obtained, which is used as the control basis of the PLC system of the CNC machine tool;

[0029] Compared with the traditional tool calibration method, the tool calibrator can be mounted on the machine tool tool position to perform real-time calibration measurement, which improves the applicability and practicality of the calibrator.

[0030] On the basis of the above, an angular displacement sensor 12 is provided on the transmission gear handle group 11 , and the angular displacement sensor 12 is used to record the rotation displacement data of the gear shaft body in the transmission gear handle group 11 to provide feedback on the angular position of the corresponding main barrel 1 .

[0031] Preferably, the ray head 5, the angular displacement sensor 12 and the drive motor 9 are all connected in series through an external PLC system, and the external PLC system is based on the PLC system of the CNC machine tool installed on the tool equipment. The linkage between the ray head 5, the angular displacement sensor 12 and the drive motor 9 facilitates real-time drive control of the CNC machine tool.

[0032] Preferably, the longitudinal depth of the spiral fit between the screw shaft 10 and the displacement disk 13 is greater than the sliding distance between the longitudinal rail shaft 6 and the collection seat 3, so that the maximum screw-in and screw-out distances of the screw shaft 10 and the displacement disk 13 are maintained within the maximum and minimum sliding distances between the longitudinal rail shaft 6 and the collection seat 3 with a relatively large sliding distance, so as to ensure the reliability of the movable structure of the collection seat 3.

[0033] Preferably, the fixed points of the crank machine rail 4 and the collection seat 3 are aligned with the axis of the ray head 5, so that the ray head 5 and the crank machine rail 4 that are relatively aligned with the axis can ensure the displacement accuracy and consistency of the camera 5, the midpoint of the collection seat 3, and the midpoint of the crank machine rail 4 when the collection seat 3 is longitudinally displaced.

[0034] Preferably, an angle steel piece 8 is fixedly provided on the machine base 2, and the fixation of the machine base 2 and the end of the tool of the numerical control machine tool is based on the bolted fixation of the angle steel piece 8 and the end of the tool.

[0035] The implementation method of the device is to fix the verifier on the side of the tool end of the CNC machine tool, and drive the screw shaft 10 and the displacement disk 13 by the braking of the driving motor 9 in real time, that is, adjust the height position of the collecting seat 3 relative to the main barrel 1, so as to adjust the midpoint of the focal length of the ray head 5 to the tool to be measured. The height position adjustment of the ray head 5 in the process is similar. During the verification, the tool size data is obtained by the delay of the rays emitted by the ray heads 5 at both ends and the rays reflected after contacting the tool, and on this basis, the main barrel 1 is rotated by the braking of the transmission gear handle group 11 to adjust the angle of the main barrel 1 relative to the angular axis 7, that is, adjust the ray incident angle of the ray head 5 corresponding to the tool, and perform comprehensive measurement of the position angles of multiple points of the tool according to the ring gauge detection requirements.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A tool checker for a numerically controlled machine tool, characterized in that: The invention comprises a main cylinder (1), a machine base (2) and a collecting seat (3), wherein the machine base (2) and the collecting seat (3) are respectively arranged at two ends of the main cylinder (1), an angular axis (7) is arranged between the machine base (2) and the main cylinder (1), and a longitudinal track axis (6) is arranged between the collecting seat (3) and the main cylinder (1); One end of the angular shaft (7) is fixed to the machine base (2), and the other end surface is grooved with a tooth groove (14). A transmission gear handle group (11) meshing with the tooth groove (14) is rotatably provided inside the main cylinder (1), and the transmission gear handle group (11) includes a drive motor and a gear shaft body that are matched for axial transmission; The collecting seat (3) is slidably matched with the longitudinal rail shaft (6), and a driving motor (9) and a screw shaft (10) are provided in the collecting seat (3) for transmission matching, and the screw shaft (10) extends to the end of the longitudinal rail shaft (6), and a displacement disk (13) is fixed inside between the longitudinal rail shaft (6) and the main barrel (1), and the screw shaft (10) passes through the displacement disk (13) and is spirally matched with it; A crank rail (4) is fixed on the outside of the collection seat (3), and an axially matching ray head (5) is provided on the inside of the crank rail (4) and on one side of the collection seat (3) relative to the crank rail (4).

2. A CNC machine tool tool checker according to claim 1, characterized in that: An angular displacement sensor (12) is provided on the transmission gear handle group (11).

3. The tool checker for a CNC machine tool according to claim 1, characterized in that: The ray head (5), the angular displacement sensor (12) and the drive motor (9) are all connected in series via an external PLC system.

4. A CNC machine tool tool checker according to claim 1, characterized in that: The longitudinal depth of the spiral fit between the screw shaft (10) and the displacement disk (13) is greater than the sliding distance between the longitudinal rail shaft (6) and the collection seat (3).

5. The tool checker for a CNC machine tool according to claim 1, characterized in that: The fixing points of the crank rail (4) and the collection seat (3) are aligned with the axis of the ray head (5).

6. A CNC machine tool tool checker according to claim 1, characterized in that: An angle steel piece (8) is fixedly arranged on the machine base (2).

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