Cantilever type rotary table structure of numerical control machine tool

Abstract

The cantilever type rotary table structure of the numerical control machine tool comprises a base, a swing shaft, a five-axis bridge plate, a rotating shaft, a workbench, a grinding wheel dresser and a grinding wheel diameter measuring instrument, the swing shaft is installed in the base, and the five-axis bridge plate is installed on the swing shaft and can be driven by the swing shaft to swing around the axis in the first direction in a reciprocating mode; the rotating shaft is mounted in the five-axis bridge plate, on one hand, swings back and forth along with the five-axis bridge plate, and on the other hand, rotates around a second-direction axis perpendicular to the first direction; the workbench is installed on the rotating shaft and can move along with the rotating shaft. The grinding wheel dresser and the grinding wheel diameter measuring instrument are both installed on the five-axis bridge plate and can swing in a reciprocating mode along with the five-axis bridge plate. According to the utility model, on-line trimming of the contour of the grinding wheel and on-line measurement of the diameter of the grinding wheel can be realized on one numerical control machine tool, the continuity of machining and measurement is effectively ensured, the precision and efficiency of trimming of the contour of the grinding wheel and measurement of the diameter of the grinding wheel are improved, and the preparation time of precise grinding machining is shortened.

Description

Technical Field

[0001] The utility model belongs to the field of numerical control machine tools, and particularly relates to a cantilever turntable structure of a numerical control machine tool. Background Art

[0002] In the field of precision grinding, grinding wheels are often used in the finishing process of CNC machine tool parts. They can perform precision grinding on the outer circle, inner circle, plane and various profiles of metal or non-metal parts. The profile consistency and dimensional accuracy of the grinding wheel directly affect the dimensional accuracy and surface effect of the parts ground by CNC machine tools. Therefore, regular profile dressing and diameter measurement of the grinding wheel are the prerequisites for ensuring the dimensional accuracy and surface effect of the parts ground by CNC machine tools.

[0003] Existing CNC machine tools usually do not have the functions of grinding wheel contour dressing and diameter measurement. During the processing, the grinding wheel needs to be dressed and measured offline. After completion, the grinding wheel is manually installed in the spindle or tool magazine of the CNC machine tool. On the one hand, it is not conducive to ensuring the accuracy of the grinding wheel installation, and on the other hand, it will affect the continuity of processing and measurement. At the same time, it is not easy to achieve the high-precision and high-efficiency requirements of grinding wheel contour dressing and diameter measurement. Although some CNC machine tools have also begun to install grinding wheel dressers on CNC machine tools to realize online dressing of grinding wheel contours, grinding wheel dressers cannot simultaneously realize the diameter measurement of grinding wheels. In order to ensure dimensional accuracy, offline measurement is still required. The continuity of processing measurement cannot be guaranteed, and processing efficiency cannot be effectively improved. Summary of the invention

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a cantilever turntable structure with both grinding wheel profile dressing and diameter measurement functions, which can realize online dressing of the grinding wheel profile and online measurement of the diameter on a CNC machine tool, effectively ensure the continuity of processing and measurement, and at the same time improve the accuracy and efficiency of grinding wheel profile dressing and grinding wheel diameter measurement, reduce the preparation time for precision grinding processing, and thus improve the utilization rate of CNC machine tools.

[0005] In order to solve the above technical problems, the utility model is realized through the following technical solutions: a cantilever turntable structure of a CNC machine tool, comprising a base, a swing shaft, a five-axis bridge plate, a rotating shaft, a worktable, a grinding wheel dresser and a grinding wheel diameter measuring instrument, the swing shaft is installed in the base, the five-axis bridge plate is installed on the swing shaft, and can swing back and forth around a first direction axis driven by the swing shaft; the rotating shaft is installed in the five-axis bridge plate, on the one hand, it swings back and forth with the five-axis bridge plate, and on the other hand, it rotates around a second direction axis perpendicular to the first direction; the worktable is installed on the rotating shaft and can move with the rotating shaft; the grinding wheel dresser and the grinding wheel diameter measuring instrument are both installed on the five-axis bridge plate, and can swing back and forth with the five-axis bridge plate.

[0006] The above-mentioned cantilever turntable structure of a CNC machine tool is provided with a dresser mounting seat on the five-axis bridge plate, including a seat body and a pressure cover. The seat body is fixed to the side of the five-axis bridge plate, and the pressure cover is fixedly connected to the seat body, so that the grinding wheel dresser can be clamped and fixed between the seat body and the pressure cover.

[0007] In the cantilever turntable structure of the above-mentioned CNC machine tool, a pipeline seat is also provided on the five-axis bridge plate, and the wiring harness and pipeline of the grinding wheel dresser are transferred through the pipeline seat and penetrated into the interior of the five-axis bridge plate; a pipeline protection cover is connected to the pipeline seat.

[0008] In the cantilever turntable structure of the above-mentioned CNC machine tool, the grinding wheel diameter measuring instrument is installed on the five-axis bridge plate through a mounting block, the mounting block is fixed to the side of the five-axis bridge plate, and the grinding wheel diameter measuring instrument is fixed on the mounting block; a pipeline adapter hole is provided on the mounting block, and the wiring harness and pipeline of the grinding wheel diameter measuring instrument are transferred through the pipeline adapter hole and penetrated into the interior of the five-axis bridge plate.

[0009] In the cantilever turntable structure of the above-mentioned CNC machine tool, a plurality of machine tool pipeline interfaces are arranged inside the five-axis bridge plate, and the wiring harness and pipeline of the grinding wheel dresser and the wiring harness and pipeline of the grinding wheel diameter measuring instrument are respectively connected to the corresponding machine tool pipeline interfaces.

[0010] Compared with the prior art, the beneficial effect of the utility model is that: the utility model installs a grinding wheel dresser and a grinding wheel diameter measuring instrument on a five-axis bridge plate, and utilizes the reciprocating swing of the five-axis bridge plate to drive the grinding wheel dresser and the grinding wheel diameter measuring instrument to move, thereby ensuring the interference-free operation of the grinding wheel dresser and the grinding wheel diameter measuring instrument, thereby enabling online dressing of the grinding wheel profile and online measurement of the grinding wheel diameter on a CNC machine tool, effectively ensuring the continuity of processing and measurement, while improving the accuracy and efficiency of grinding wheel profile dressing and grinding wheel diameter measurement, reducing the preparation time for precision grinding processing, and thereby improving the utilization rate of CNC machine tools and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the utility model.

[0012] Figure 2 It is a schematic diagram of the installation positions of a grinding wheel dresser and a grinding wheel diameter measuring instrument provided in an embodiment of the utility model.

[0013] Figure 3 It is a schematic diagram of the pipeline switching structure provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0015] In the description of the embodiments of the present invention, it should be noted that the directions or positional relationships indicated by the terms "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0016] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0017] Combination Figures 1 to 3 As shown, a cantilever turntable structure of a CNC machine tool provided by an embodiment of the utility model includes a base 1, a swing shaft 2, a five-axis bridge plate 3, a rotating shaft 4, a worktable 5, a grinding wheel diameter measuring instrument 6 and a grinding wheel dresser 7. The base 1 is the supporting foundation of the entire cantilever turntable structure and is installed on the CNC machine tool. The swing shaft 2 is installed in the base and can swing back and forth around its axis under the action of its driving device. The five-axis bridge plate 3 is fixedly installed at the output end of the swing shaft 2 and can swing back and forth driven by the swing shaft 2. The rotating shaft 4 is arranged perpendicular to the swing shaft 2 and is installed in the five-axis bridge plate 3. On the one hand, it swings back and forth with the five-axis bridge plate 3, and on the other hand, it can rotate at high speed around its own axis. The worktable 5 for carrying a workpiece is installed on the rotating shaft 4 and can move with the rotating shaft 4.

[0018] A dresser mounting seat 8 is provided on the five-axis bridge plate 3, including a seat body 81 and a pressure cover 82. The seat body 81 is fixed to the right front side of the five-axis bridge plate 3, and the pressure cover 82 is fixedly connected to the seat body 81. The grinding wheel dresser 7 is clamped and fixed between the seat body 81 and the pressure cover 82. The grinding wheel dresser 7 can swing with the five-axis bridge plate 3, so that the grinding wheel can be dressed at different angles. In order to realize the connection and protection of the grinding wheel dresser pipeline, a pipeline seat 11 is fixed on the five-axis bridge plate 3. The wiring harness and pipeline of the grinding wheel dresser 7 are transferred through the pipeline seat 11 and penetrated into the interior of the five-axis bridge plate 3. The pipeline protection cover 10 is connected to the outside of the pipeline seat 11, which can seal and protect the wiring harness and pipeline of the grinding wheel dresser 7.

[0019] A mounting block 9 is fixedly mounted on the right side of the five-axis bridge plate 3, and the grinding wheel diameter measuring instrument 6 is fixed on the mounting block 9 and can swing back and forth with the five-axis bridge plate 3. A pipeline transfer hole is provided on the mounting block 9, and the wiring harness and pipeline of the grinding wheel diameter measuring instrument 6 are transferred through the pipeline transfer hole and penetrated into the interior of the five-axis bridge plate 3.

[0020] In order to realize the connection between the grinding wheel diameter measuring instrument 6 and the grinding wheel dresser 7 and the CNC machine tool, a machine tool pipeline interface is set inside the five-axis bridge plate 3, and the wiring harness and pipeline of the grinding wheel dresser 7 and the wiring harness and pipeline of the grinding wheel diameter measuring instrument 6 are respectively connected to the corresponding machine tool pipeline interface.

[0021] When the utility model is working, it can realize five-axis linkage with the linear axis of the CNC machine tool. When it is necessary to trim the contour of the grinding wheel installed on the spindle of the CNC machine tool and measure the diameter of the grinding wheel, the utility model first swings to the first safe angle position, and the spindle of the CNC machine tool drives the grinding wheel to move near the grinding wheel dresser 7, and the grinding wheel dresser 7 completes the contour dressing of the grinding wheel according to the grinding wheel contour. Then the utility model swings to the second safe angle position, and the spindle of the CNC machine tool continues to move, so that the grinding wheel is close to the grinding wheel diameter measuring instrument 6, and the outer contour of the grinding wheel touches the measuring surface of the grinding wheel diameter measuring instrument 6, and finally realizes the diameter measurement of the grinding wheel. At this point, the contour dressing and diameter measurement of the grinding wheel are completed.

[0022] Although the utility model is described in detail above, the utility model is not limited thereto, and those skilled in the art can make various modifications according to the principle of the utility model. Therefore, all modifications made according to the principle of the utility model should be understood to fall within the protection scope of the utility model.

Claims

1. A cantilever turntable structure for a CNC machine tool, characterized in that: It includes a base, a swing shaft, a five-axis bridge plate, a rotating shaft, a workbench, a grinding wheel dresser and a grinding wheel diameter measuring instrument. The swing shaft is installed in the base, and the five-axis bridge plate is installed on the swing shaft. It can swing back and forth around the axis of a first direction driven by the swing shaft; the rotating shaft is installed in the five-axis bridge plate, and on the one hand, it swings back and forth with the five-axis bridge plate, and on the other hand, it rotates around the axis of a second direction perpendicular to the first direction; the workbench is installed on the rotating shaft and can move with the rotating shaft; the grinding wheel dresser and the grinding wheel diameter measuring instrument are both installed on the five-axis bridge plate, and can swing back and forth with the five-axis bridge plate.

2. The cantilever turntable structure of a CNC machine tool according to claim 1, characterized in that: The five-axis bridge plate is provided with a dresser mounting seat, which includes a seat body and a pressure cover. The seat body is fixed to the side of the five-axis bridge plate, and the pressure cover is fixedly connected to the seat body, so that the grinding wheel dresser can be clamped and fixed between the seat body and the pressure cover.

3. The cantilever turntable structure of a CNC machine tool according to claim 1 or 2, characterized in that: The five-axis bridge plate is also provided with a pipeline seat, and the wiring harness and pipeline of the grinding wheel dresser are transferred through the pipeline seat and penetrated into the interior of the five-axis bridge plate; the pipeline seat is connected to a pipeline protection cover.

4. The cantilever turntable structure of a CNC machine tool according to claim 3, characterized in that: The grinding wheel diameter measuring instrument is installed on the five-axis bridge plate through a mounting block, the mounting block is fixed to the side of the five-axis bridge plate, and the grinding wheel diameter measuring instrument is fixed on the mounting block; a pipeline adapter hole is provided on the mounting block, and the wiring harness and pipeline of the grinding wheel diameter measuring instrument are transferred through the pipeline adapter hole and penetrated into the interior of the five-axis bridge plate.

5. The cantilever turntable structure of a CNC machine tool according to claim 4, characterized in that: A plurality of machine tool pipeline interfaces are arranged inside the five-axis bridge plate, and the wiring harness and pipeline of the grinding wheel dresser and the wiring harness and pipeline of the grinding wheel diameter measuring instrument are respectively connected to the corresponding machine tool pipeline interfaces.

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