Biaxial measuring mechanism for numerical control machine tool

Abstract

The utility model discloses a biaxial measuring mechanism for a numerical control machine tool, which comprises a detection probe, a first base and a second base, the first base and the second base are arranged on a tool position of a tool turret, the first base is installed along the X direction, the second base is installed along the Y direction, the first base and the second base are both provided with PCS quick-change interfaces, and the PCS quick-change interfaces are connected with the detection probe. The detection probe is installed on the connecting sleeve, and the connecting sleeve is connected with the PCS quick-change interface. According to the utility model, the detection probe can be rapidly disassembled and assembled, and the position of the detection probe does not need to be repeatedly corrected after repeated installation.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a biaxial measuring mechanism for a numerically controlled machine tool. Background Art

[0002] During the processing of workpieces by CNC machine tools, it is necessary to measure the size of the workpiece through a detection probe. The detection probe is installed on the lathe or the turret of the turning center. After measurement, the detection probe sends the signal to the receiver, and the receiver transmits the signal to the CNC machine tool controller through the interface to achieve the purpose of online measurement.

[0003] There are generally two installation methods for the turret of a turning center: X-direction installation and Z-direction installation. The X-direction installation is used to measure the outer diameter of the workpiece unilaterally and measure the X-direction size of the workpiece. The Z-direction installation is used to measure the Z-direction size of the workpiece and can also measure the inner hole and outer diameter sizes on both sides.

[0004] In the conventional installation of the detection probe, the measuring head is installed in the connecting sleeve and tightened by screws. The sleeve is inserted into the tool holder on the existing turret and is also tightened by screws. Figure 1 The disadvantage of the above installation method is that the repeat installation accuracy is poor. The tightening of the screws will produce indentations on the tightened outer surface, which will further affect the repeat installation accuracy. Therefore, the position of the probe needs to be recalibrated after each reinstallation.

[0005] Because calibration is cumbersome and labor-intensive, the installed probe is rarely disassembled. This results in the probe always occupying a tool position, significantly reducing tool position utilization. This is especially true when processing diverse products, such as measuring the outer diameter of long shafts and short parts, requiring two sets of probes and occupying two tool positions, severely impacting usability and efficiency. Summary of the Invention

[0006] The technical problem to be solved by the utility model is to provide a biaxial measuring mechanism for a numerically controlled machine tool, which can quickly disassemble and assemble a detection probe and does not require repeated correction of the detection probe position after repeated installation.

[0007] In order to solve the above technical problems, the utility model provides a biaxial measuring mechanism for a CNC machine tool, comprising a detection probe and a first base and a second base arranged on a tool position of a turret, the first base being installed along the X direction and the second base being installed along the Y direction, the first base and the second base being both provided with a PCS quick-change interface, the detection probe being installed on a connecting sleeve, and the connecting sleeve being connected to the PCS quick-change interface.

[0008] Furthermore, a positioning groove is provided at the bottom of the first base, and a positioning protrusion is provided at the bottom of the second base.

[0009] Furthermore, a first mounting groove is provided on the surface of the first base, and a second mounting groove is provided on the surface of the second base.

[0010] Furthermore, a mounting sleeve is provided on one side wall of the second mounting groove, a locking hole is provided on the surface of the mounting sleeve, and the connecting sleeve is inserted into the mounting sleeve and fixed by a bolt in the locking hole.

[0011] Furthermore, a rotating platform is provided at the bottom of the second mounting groove, a rotating shaft is provided at the bottom of the rotating platform, a rotating mounting hole is provided on the second base surface corresponding to the rotating shaft, a rotating bearing is provided between the rotating mounting hole and the rotating shaft, and the rotating platform and the second base surface are fixed by a first screw.

[0012] Furthermore, the rotating shaft is eccentrically arranged, and a rotating stop protrusion is further arranged on the surface of the second base. A second screw is arranged on the rotating stop protrusion, and the second screw is used to fix the second mounting groove and the rotating stop protrusion.

[0013] Furthermore, it also includes a protective cover, which is sleeved on the detection probe.

[0014] Furthermore, a threaded portion is provided on the surface of the connecting sleeve, and the inner wall of the protective cover is threadedly connected to the threaded portion.

[0015] Furthermore, a sponge layer is provided on the inner wall of the protective cover.

[0016] Beneficial effects of the utility model:

[0017] 1. The PCS quick-change interface is versatile and easy to replace. In addition, since the interface is a triangular taper and the end face is positioned, the repeat positioning accuracy is high. After being applied to the detection side head, repeated installation does not require repeated correction of the detection probe position.

[0018] 2. The setting of the first mounting groove and the second mounting groove can conveniently locate the axial installation position of the PCS quick-change interface, ensuring accurate detection of the axial position.

[0019] 3. A mounting sleeve is provided on one side wall of the second mounting groove, which can fix the detection probe without interference when it is not in use, so that the detection probe does not need to be disassembled and stored, and the convenience of use is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the installation of a conventional detection probe;

[0021] Figure 2 This is a schematic diagram of the overall structure of the utility model when it is installed and used;

[0022] Figure 3This is a schematic diagram of the installation of the measuring mechanism of the utility model;

[0023] Figure 4 This is a schematic diagram of the measuring mechanism of the utility model from the first perspective;

[0024] Figure 5 This is a schematic diagram of the measuring mechanism of the utility model from a second viewing angle;

[0025] Figure 6 This is a schematic diagram of the measuring mechanism with storage function of the utility model;

[0026] Figure 7 This is a schematic diagram of the measuring mechanism with avoidance function of the utility model;

[0027] Figure 8 This utility model Figure 7 Schematic diagram of the structure during avoidance. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0029] Reference Figures 1 to 6 As shown, an embodiment of the present invention of a biaxial measuring mechanism for a CNC machine tool includes a detection probe 1 and a first base 4 and a second base 5 disposed on a tool position 3 of a turret 2. The first base is mounted along the X direction, and the second base is mounted along the Y direction. The first and second bases are both provided with a PCS quick-change interface 6. The detection probe is mounted on a connecting sleeve 7, which is connected to the PCS quick-change interface. The turret is mounted on a CNC machine tool 111. The tool positions on the turret are used to mount a mounting seat 112, which is used to mount a tool. One of the tool positions is not equipped with a mounting seat, but is used to mount the first and second bases. That is, the first and second bases are mounted simultaneously in the Y and X directions of the same tool position. Both are fixed with a PCS quick-change interface, thereby enabling the connecting sleeve on which the detection probe is mounted to be quickly fixed. The PCS quick-change interface is a triangular taper structure that matches the end face positioning and has a high repeatability. When used on the detection probe, its repeated installation does not require repeated correction of the detection probe position.

[0030] When in use, it can be installed on the second mounting seat in the Y direction or the first mounting seat in the X direction according to the requirements. Due to the use of the PCS interface with high repeat positioning accuracy, it can also be used as a tool holder for installing tools when not in use, making full use of the turret tool position.

[0031] To ensure the accuracy of the installation position of the first and second bases, a positioning groove 8 is provided on the bottom of the first base, and a positioning protrusion 9 is provided on the bottom of the second base to cooperate with the structure on the tool position for effective positioning and installation. Furthermore, to ensure the installation position accuracy of the PCS quick-change interface, a first mounting groove 10 is provided on the surface of the first base, and a second mounting groove 11 is provided on the surface of the second base. The first and second mounting grooves can limit the width direction of the PCS quick-change interface, so that the PCS quick-change interface is accurately oriented, thereby ensuring the axial extension direction of the detection probe is determined.

[0032] Since the PCS quick-change interfaces intersect in direction, when the tool needs to be used, the tool and the detection probe will interfere with each other. Therefore, a mounting sleeve 12 is provided on one side wall of the second mounting groove, and a locking hole is provided on the surface of the mounting sleeve. The connecting sleeve is inserted into the mounting sleeve and fixed by the bolt in the locking hole. When the tool is used, the detection probe is removed and then installed on the connecting sleeve, so that the detection probe does not need to be removed from the equipment for storage; and a protective cover 13 is also provided, and the protective cover is provided on the detection probe, which has a good protection effect when the detection probe is stored on the equipment; a threaded portion is provided on the surface of the connecting sleeve, and the inner wall of the protective cover is threadedly connected to the threaded portion, which is convenient and quick to disassemble. A sponge layer is provided on the inner wall of the protective cover, which can avoid hard contact between the detection probe and the protective cover when disassembling and assembling the protective cover.

[0033] In one embodiment, in order to avoid the installation and use of the tool, a rotating platform 14 can be provided at the bottom of the second installation groove, a rotating shaft 15 is provided at the bottom of the rotating platform, a rotating mounting hole is provided on the second base surface corresponding to the rotating shaft, a rotating bearing 17 is provided between the rotating mounting hole and the rotating shaft, the rotating platform and the second base surface are fixed by a first screw, and a corresponding locking hole 18 is provided on the rotating platform. In order to improve the stability after locking, a locking hole can be provided at the top of the second installation groove, where the locking hole passes through the rotating platform, so that the first screw can be locked with the second base. By providing the rotating shaft, the rotating platform can be rotated, so that the installation direction of the PCS quick-change interface in the second installation groove can be changed, so that after the detection probe is installed at this position, it will not interfere with the tool installed in the second installation groove. After the rotation avoidance, the rotating platform and the second base can be locked and fixed. The fixation here does not require a large locking force, so a single screw is used to achieve the purpose of preventing rotation.

[0034] Specifically, the above-mentioned rotating shaft is eccentrically arranged, and a rotating stop protrusion 19 is also provided on the surface of the second base, and a second screw is provided on the rotating stop protrusion, and the second screw is used to fix the second mounting groove and the rotating stop protrusion; when using the detection probe for measurement, the outer wall of the second mounting groove is close to the rotating stop protrusion and is locked with the second screw. At this time, the rotating stop protrusion limits the second mounting groove to ensure that the PCS quick-change interface extends in a certain direction. The second mounting groove can be locked with the second base by the first screw to ensure that the rotating platform is fixed at an accurate position, and the position is positioned by rotating and fitting, and no calibration is required.

[0035] In the process of avoiding the tool, first remove the first screw and the second screw, then apply force to rotate the rotating platform so that the convex portion at the tail of the second mounting groove contacts the rotary stop convex portion, and then use the second screw to fix it to stop rotation. The above-mentioned rotary stop convex portion is provided with two countersunk holes to fix the second mounting groove in two directions. The eccentrically set rotating shaft can greatly move the detection probe away from the tool, ensuring that the space around the tool meets the processing requirements, and can ensure that the side side walls and tail side walls of the second mounting groove can be well fitted and locked with the rotary stop convex portion. In order to achieve the purpose of quick avoidance without disassembling the detection probe, the detection probe can be stored on the equipment for standby use.

[0036] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art based on the present invention shall fall within the protection scope of the present invention.

Claims

1. A biaxial measuring mechanism for CNC machine tools, characterized in that: It includes a detection probe and a first base and a second base arranged on a tool position of the turret. The first base is installed along the X direction and the second base is installed along the Y direction. The first base and the second base are both provided with PCS quick-change interfaces. The detection probe is installed on a connecting sleeve, and the connecting sleeve is connected to the PCS quick-change interface.

2. The biaxial measuring mechanism for CNC machine tools according to claim 1, characterized in that: A positioning groove is provided at the bottom of the first base, and a positioning protrusion is provided at the bottom of the second base.

3. The biaxial measuring mechanism for CNC machine tools according to claim 1, characterized in that: The first base surface is provided with a first mounting groove, and the second base surface is provided with a second mounting groove.

4. The biaxial measuring mechanism for CNC machine tools according to claim 3, characterized in that: A mounting sleeve is provided on one side wall of the second mounting groove, a locking hole is provided on the surface of the mounting sleeve, and the connecting sleeve is inserted into the mounting sleeve and fixed by a bolt in the locking hole.

5. The biaxial measuring mechanism for CNC machine tools according to claim 3, characterized in that: A rotating platform is provided at the bottom of the second mounting groove, a rotating shaft is provided at the bottom of the rotating platform, a rotating mounting hole is provided on the second base surface corresponding to the rotating shaft, a rotating bearing is provided between the rotating mounting hole and the rotating shaft, and the rotating platform is fixed to the second base surface by a first screw.

6. The biaxial measuring mechanism for CNC machine tools according to claim 5, characterized in that: The rotating shaft is eccentrically arranged, and a rotation stop convex portion is further arranged on the surface of the second base. A second screw is arranged on the rotation stop convex portion, and the second screw is used to fix the second mounting groove and the rotation stop convex portion.

7. The biaxial measuring mechanism for CNC machine tools according to claim 1, characterized in that: It also includes a protective cover, which is sleeved on the detection probe.

8. The biaxial measuring mechanism for CNC machine tools according to claim 7, characterized in that: A threaded portion is provided on the surface of the connecting sleeve, and the inner wall of the protective cover is threadedly connected to the threaded portion.

9. The biaxial measuring mechanism for CNC machine tools according to claim 7, characterized in that: A sponge layer is provided on the inner wall of the protective cover.

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