A measurement structure for error compensation of a turning and milling CNC machine tool

Abstract

The utility model provides a kind of measurement structure of turning-milling numerical control machine tool error compensation, including turning-milling numerical control machine tool main body and storage cavity and support plate, support plate is arranged in storage cavity inner wall;It further includes measurement pedestal and is used for the laser interferometer of turning-milling numerical control machine tool error compensation measurement, measurement pedestal is set to move up and down adjustment, and rotation column is rotationally adjusted and arranged on the upper end of measurement pedestal, and laser interferometer is fixedly installed on the upper end of rotation column.The utility model can be moved to the inside of storage cavity linearly downward after measurement is completed, realize hidden storage, it is convenient and safe, avoid to occupy the operation space of turning-milling numerical control machine tool main body.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and in particular to a measurement structure for error compensation of turning and milling CNC machine tools. Background Technology

[0002] In error compensation scenarios for CNC milling and turning machines, laser error compensation measuring instruments are typically mounted on a stand or support at the outer end of the machine. This mounting method, when the measuring instrument is not in use, occupies considerable space on the machine, significantly disrupting the machine's overall aesthetic appeal and making it appear cluttered. Furthermore, it can hinder normal operations and increase the difficulty of operation. During machine maintenance, the space occupied by the measuring instrument also causes inconvenience and interferes with the smooth progress of maintenance work. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a measurement structure for error compensation of CNC turning and milling machine tools.

[0004] To address the problem that the aforementioned installation method of mounting and supporting the measuring instrument, when not in use, excessively occupies machine tool space, which not only greatly damages the overall simplicity and neatness of the machine tool, making its appearance cluttered, but also may hinder the operator's normal work and increase the difficulty of operation; furthermore, the space occupied by the measuring instrument also causes many inconveniences during machine tool maintenance, interfering with the smooth progress of maintenance work, the technical solution adopted by this utility model is: A measurement structure for error compensation of a CNC turning and milling machine tool includes the main body of the CNC turning and milling machine tool, a storage cavity, and a support plate, wherein the support plate is disposed on the inner wall of the storage cavity; It also includes a measuring base and a laser interferometer for measuring error compensation in CNC turning and milling machines. The measuring base is adjustable by moving up and down, and a rotating column is adjustable by rotating horizontally at the upper end of the measuring base. The laser interferometer is fixedly installed on the upper end of the rotating column.

[0005] Preferably, a first motor is fixedly mounted on the lower end of the support plate, and a first synchronous pulley is fixedly mounted on the transmission shaft of the upper end of the first motor. The first synchronous pulley is connected to a second synchronous pulley via a synchronous belt, and an internally threaded transmission tube is fixedly mounted in the middle of the second synchronous pulley.

[0006] Preferably, the internally threaded transmission tube is vertically and rotatably connected to the middle of the support plate via a rotating shaft, and a lead screw is threadedly connected to the inner wall of the internally threaded transmission tube, with the upper end of the lead screw fixed to the bottom of the measuring base.

[0007] Preferably, a limit ring is installed at the bottom of the lead screw, and sliding rods are vertically fixed on both sides of the lower end of the measuring base.

[0008] Preferably, sliding tubes are vertically fixed through both sides of the support plate, and the sliding rod is movably connected to the inner wall of the sliding tube.

[0009] Preferably, a second motor is fixedly installed through the side end of the measuring base, and a gear is fixedly installed on the upper drive shaft of the second motor, with a half-tooth disc meshing inside the gear.

[0010] Preferably, the half-tooth disk is equipped with limiting plates on both sides for limiting the gear, and the half-tooth disk is horizontally fixed on the outer curved surface of the rotating column.

[0011] Preferably, a sealing cover is hinged to the upper outer side of the receiving cavity, and the laser interferometer is equipped with a measuring reflector.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes the coordinated operation of a laser interferometer and a measuring mirror to perform precise error compensation measurements on the main body of a CNC milling and turning machine. The laser interferometer uses the difference in emission and reflection light sources to accurately measure the positioning accuracy value, thereby acquiring error data. Simultaneously, a second motor is activated, which drives a gear to rotate, which in turn meshes and rotates a half-tooth disk. The rotation of the half-tooth disk, in turn, causes the laser interferometer to swing horizontally via a rotating column, thus adjusting the measurement angle. When the first motor is turned on, it drives the first synchronous pulley to rotate, which in turn drives the second synchronous pulley to rotate via a synchronous belt. The rotation of the second synchronous pulley drives the internal threaded transmission tube to rotate, thereby generating a threaded connection force that causes the lead screw to move up and down. The up and down movement of the lead screw causes the measuring base to move linearly, thereby adjusting the measuring height of the laser interferometer. After the measurement is completed, the laser interferometer can also move downwards linearly into the storage cavity for concealed storage, which is both convenient and safe, and avoids occupying the working space of the CNC lathe and milling machine. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a partial structural schematic diagram of the present invention.

[0015] Figure 3This is a partial structural cross-sectional view of the present invention. Figure 1 .

[0016] Figure 4 This is a partial structural cross-sectional view of the present invention. Figure 2 .

[0017] Reference numerals in the attached drawings: 1. Main body of CNC turning and milling machine tool; 2. Storage cavity; 3. Support plate; 4. Sealing cover; 5. Measuring base; 6. Laser interferometer; 7. First motor; 8. First synchronous pulley; 9. Second synchronous pulley; 10. Internal thread transmission tube; 11. Lead screw; 12. Limiting ring; 13. Slide rod; 14. Slide tube; 15. Rotating column; 16. Second motor; 17. Gear; 18. Half gear plate. Detailed Implementation

[0018] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0019] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0020] Please see Figure 1-4 This embodiment proposes a measurement structure for error compensation in a CNC turning and milling machine tool, including a main body 1 of the CNC turning and milling machine tool, a receiving cavity 2, and a support plate 3. The support plate 3 is horizontally fixed to the inner wall of the upper end of the receiving cavity 2 by bolts, and a sealing cover 4 is hinged to the outer side of the upper end of the receiving cavity 2. This design allows the sealing cover 4 to selectively block and seal the upper opening of the receiving cavity 2, preventing external dust or impurities from entering the interior of the receiving cavity 2.

[0021] In addition, this embodiment is also equipped with a measuring base 5 and a laser interferometer 6 for measuring error compensation of CNC turning and milling machine tools. The laser interferometer 6 is equipped with a measuring reflector (not shown in the figure). A first motor 7 is fixedly mounted on the lower end of the support plate 3, and a first synchronous pulley 8 is fixedly mounted on the drive shaft of the upper end of the first motor 7. The first synchronous pulley 8 is connected to a second synchronous pulley 9 through a synchronous belt, and an internally threaded transmission tube 10 is fixedly mounted in the middle of the second synchronous pulley 9. The internally threaded transmission tube 10 is vertically passed through and rotatably connected to the middle of the support plate 3 through a rotating shaft. The inner wall of the internally threaded transmission tube 10 is tightly connected to the lead screw 11 through threads, and the upper top end of the lead screw 11 is fixed to the bottom of the measuring base 5. A limit ring 12 is installed at the bottom of the lead screw 11 to prevent the lead screw 11 from falling off. Meanwhile, sliding rods 13 are vertically fixed on both sides of the lower end of the measuring base 5, and sliding tubes 14 are vertically inserted and fixed on both sides of the support plate 3. The sliding rods 13 are in contact with the inner wall of the sliding tubes 14 and can be movably connected, thereby ensuring that the measuring base 5 can slide vertically and be effectively limited.

[0022] At the upper end of the measuring base 5, a rotating column 15 is horizontally rotatably connected via a rotating shaft, and a laser interferometer 6 is fixedly mounted on the upper end of the rotating column 15. Furthermore, a second motor 16 is fixedly mounted through the side end of the measuring base 5, and a gear 17 is fixedly mounted on the drive shaft at its upper end. The inner side of the gear 17 meshes with a half-tooth disk 18, while limit plates are installed on both sides of the half-tooth disk 18 to prevent the gear 17 from disengaging. The half-tooth disk 18 is horizontally fixed on the outer curved surface of the rotating column 15.

[0023] In practical applications, this embodiment utilizes the coordinated operation of the laser interferometer 6 and the measuring reflector to perform precise error compensation measurements on the main body 1 of the CNC milling and turning machine. The laser interferometer 6 uses the difference in the emitted and reflected light sources to accurately measure the positioning accuracy value, thereby acquiring error data. Simultaneously, it controls the activation of the second motor 16, which drives the gear 17 to rotate, which in turn meshes and drives the half-tooth disk 18 to rotate. The rotation of the half-tooth disk 18, in turn, causes the laser interferometer 6 to swing horizontally via the rotating column 15, thereby adjusting the measurement angle.

[0024] Simultaneously, the measuring height of the laser interferometer 6 is adjusted by controlling the activation of the first motor 7. When the first motor 7 is activated, it drives the first synchronous pulley 8 to rotate, which in turn drives the second synchronous pulley 9 to rotate via a synchronous belt drive. The rotation of the second synchronous pulley 9, in turn, drives the internal thread transmission tube 10 to rotate, thereby generating a threaded connection force that causes the lead screw 11 to move up and down. The up and down movement of the lead screw 11 then drives the measuring base 5 to move linearly, thereby adjusting the measuring height of the laser interferometer 6. After the measurement is completed, the laser interferometer 6 can also move downwards linearly into the storage cavity 2 for concealed storage, which is both convenient and safe, and avoids occupying the working space of the main body 1 of the milling and turning machine tool.

[0025] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A measurement structure for error compensation in a milling and turning CNC machine tool, comprising the main body of the milling and turning CNC machine tool (1), characterized in that, It includes a storage cavity (2) and a support plate (3), with the support plate (3) disposed on the inner wall of the storage cavity (2); It also includes a measuring base (5) and a laser interferometer (6) for measuring the error compensation of CNC turning and milling machines. The measuring base (5) is adjustable up and down, and a rotating column (15) is adjusted horizontally at the upper end of the measuring base (5). The laser interferometer (6) is fixedly installed at the upper end of the rotating column (15).

2. The measuring structure for error compensation of CNC turning and milling machine tools according to claim 1, characterized in that, The lower end of the support plate (3) is fixedly supported by a first motor (7), and the upper end of the transmission shaft of the first motor (7) is fixedly supported by a first synchronous pulley (8). The first synchronous pulley (8) is connected to a second synchronous pulley (9) via a synchronous belt, and the middle part of the second synchronous pulley (9) is fixedly supported by an internally threaded transmission tube (10).

3. The measuring structure for error compensation of CNC turning and milling machine tools according to claim 2, characterized in that, The internal threaded transmission tube (10) is vertically and rotatably connected to the middle of the support plate (3) through a rotating shaft. The inner wall of the internal threaded transmission tube (10) is threaded with a lead screw (11), and the top end of the lead screw (11) is fixed to the bottom of the measuring base (5).

4. The measuring structure for error compensation of CNC turning and milling machine tools according to claim 3, characterized in that, A limit ring (12) is installed at the bottom of the lead screw (11), and slide rods (13) are vertically fixed on both sides of the lower end of the measuring base (5).

5. The measuring structure for error compensation of CNC turning and milling machine tools according to claim 4, characterized in that, The support plate (3) has vertically inserted and fixed sliding tubes (14) on both sides, and the sliding rod (13) is movably connected to the inner wall of the sliding tube (14).

6. The measuring structure for error compensation of CNC turning and milling machine tools according to claim 1, characterized in that, The measuring base (5) has a second motor (16) fixedly installed through the side end. The upper drive shaft of the second motor (16) has a gear (17) fixedly installed. The gear (17) has a half-tooth disc (18) meshing inside.

7. The measuring structure for error compensation of CNC turning and milling machine tools according to claim 6, characterized in that, The half-tooth disk (18) is equipped with limiting plates on both sides for limiting the gear (17), and the half-tooth disk (18) is horizontally fixed on the outer curved surface of the rotating column (15).

8. The measuring structure for error compensation of CNC turning and milling machine tools according to claim 1, characterized in that, The upper outer side of the receiving cavity (2) is hinged with a sealing cover (4), and the laser interferometer (6) is equipped with a measuring reflector.

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