Precision detection device for numerical control lathe
Through the combined structure of the square tube, slide column and pressure sensor, automatic center calibration of the CNC lathe is achieved, solving the problems of large calibration error and discontinuous operation in the existing technology, and improving processing accuracy and efficiency.
Patent Information
- Application Number
- CN202422462614.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-11
AI Technical Summary
Existing CNC lathe calibration equipment has large errors when calibrating through the collision between the blank and the steel wire rod, and requires frequent installation and removal, which affects continuous operation and increases the burden on staff.
It adopts a square cylinder, sliding column and pressure sensor structure, and performs center calibration by detecting the pressure change of the cylindrical blank. It combines the guide rod and electromagnet to realize automatic calibration, and the display shows the detection results.
It improves processing accuracy and work efficiency, reduces errors, avoids the trouble of frequently installing and removing calibration equipment, and reduces the labor intensity of staff.
Smart Images
Figure CN223313570U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of numerically controlled lathes, in particular to a precision detection device for numerically controlled lathes. Background Art
[0002] In metal processing workshops, during the processing of various cylindrical blanks, larger cylindrical blanks need to be centered when they are installed and fixed to prevent processing deviation.
[0003] In actual processing workshops, for convenience, lathe operators usually directly use a heavy chassis to install a steel wire rod for calibration. There are some problems during use: (1) The lathe center is calibrated by rotating the blank through the collision between the blank and the steel wire rod. Due to the large vibration during the collision, there is often a large error, and the calibration device is often knocked off by the rotating blank; (2) After the lathe center is calibrated, the existing calibration equipment needs to be removed from the lathe and reinstalled for the next calibration. This not only affects the continuous operation of the lathe, but also has no place to put the removed calibration equipment, and is heavy, which increases the workload of the staff.
[0004] Therefore, it is necessary to propose a CNC lathe precision detection device to solve the above problems. Utility Model Content
[0005] The purpose of the utility model is to provide a precision detection device for a CNC lathe, so as to solve the problem that the center of the lathe is calibrated by the collision between the blank and the steel wire rod. Due to the large vibration during the collision, there is often a large error, and the calibration device is often knocked off by the rotating blank. After the center of the lathe is calibrated, the existing calibration equipment needs to be removed from the lathe and reinstalled for the next calibration, which not only affects the continuous operation of the lathe, but also has no place to put the removed calibration equipment and is heavy, which increases the workload of the staff.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a precision detection device for a CNC lathe, comprising an operating table, a fixed seat fixedly provided at one end of the top of the operating table, a movable seat slidably provided at the other end of the top of the operating table, a circular ring rotatably provided on the side of the fixed seat close to the movable seat, a square tube fixedly connected to the inner ring of the circular ring, a sliding column slidably provided on the end of the square tube away from the circular ring, a square plate slidably connected to the inside of the square tube, a pressure sensor fixedly connected to the side of the square plate facing away from the sliding column, the pressure sensor abutting the inner wall of the square tube, a spring fixedly connected to the side of the sliding column facing the square plate, and the end of the spring away from the sliding column is fixedly connected to the square plate.
[0007] Preferably, the square tubes are provided in plurality, and the plurality of square tubes are evenly distributed around the axis of the ring.
[0008] Preferably, a ball is movably embedded in one end of the sliding column away from the square tube.
[0009] Preferably, a guide rod is fixedly connected to a side of the slide column facing the movable seat. The guide rod is located at the end of the slide column away from the square tube. The guide rod is tilted, and the end away from the slide column is tilted in a direction away from the axis of the ring.
[0010] Preferably, a square bar is slidably provided on the movable seat, a ring groove is provided on the side of the circular ring facing the fixed seat, a T-shaped block is slidably provided inside the ring groove, and the T-shaped block is fixedly connected to the square bar.
[0011] Preferably, an electromagnet is fixedly embedded in one end of the T-shaped block away from the square bar.
[0012] Preferably, a slide groove is provided on the top of the operating table, the movable seat is slidably arranged in the slide groove, and a clamping piece is provided on a side of the movable seat facing the fixed seat.
[0013] Preferably, a display is fixedly connected to the top of the operating table.
[0014] The technical effects and advantages of this utility model are:
[0015] 1. The utility model can perform multiple center calibration tests on cylindrical blanks by arranging structures such as a square tube, a slide column, and a pressure sensor, thereby improving processing accuracy. The cylindrical blank does not need to be removed from the lathe, and calibration can be performed during multiple processing, thereby improving the working efficiency of the CNC machine tool.
[0016] 2. A guide rod is provided to facilitate the end of the cylindrical blank away from the clamping part to extend into the interior of the ring and be located between multiple sliding columns, thereby improving the convenience of detection. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a structural diagram of a CNC lathe precision detection device from one perspective of the utility model.
[0018] Figure 2 This is a schematic structural diagram of the CNC lathe precision detection device from another perspective of the utility model.
[0019] Figure 3 This is a schematic diagram of the square tube and sliding column structure of the utility model.
[0020] Figure 4 For this utility model Figure 3 A magnified schematic diagram of the structure in the middle.
[0021] In the figure: 1. Operating table; 2. Fixed seat; 3. Square bar; 4. T-shaped block; 5. Electromagnet; 6. Ring groove; 7. Square cylinder; 8. Sliding column; 9. Square plate; 10. Pressure sensor; 11. Ball bearing; 12. Guide rod; 13. Ring; 14. Display; 15. Slide groove; 16. Moving seat; 17. Clamping piece; 18. Spring. DETAILED DESCRIPTION
[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clarify the technical solutions in the embodiments of the present invention; it is clear that the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] The utility model provides Figures 1 to 4 The shown device is a precision detection device for a CNC lathe, comprising an operating table 1, a fixed seat 2 being fixedly provided at one end of the top of the operating table 1, a movable seat 16 being slidably provided at the other end of the top of the operating table 1, a slide groove 15 being provided on the top of the operating table 1, the movable seat 16 being slidably provided in the slide groove 15, a clamping member 17 being provided on the side of the movable seat 16 facing the fixed seat 2, the clamping member 17 can use a conventional CNC lathe fixture structure, including a positioning block, etc., which can clamp and position the cylindrical blank; and the movable seat 16 slides in the slide groove 15, driving the blank to move through the clamping member 17.
[0024] To achieve center calibration and detection of the cylindrical blank, a circular ring 13 is rotatably provided on the side of the fixed seat 2 near the movable seat 16, and the circular ring 13 is concentrically arranged with the clamping member 17. A square bar 3 is slidably penetrated on the movable seat 16, and a ring groove 6 is provided on the side of the circular ring 13 facing the fixed seat 2. A T-shaped block 4 is slidably provided inside the ring groove 6. The T-shaped block 4 is fixedly connected to the square bar 3, and the circular ring 13 slides on the T-shaped block 4 to achieve the effect of rotating the circular ring 13. A square tube 7 is fixedly connected to the inner ring of the circular ring 13. The square tubes 7 are provided in multiple numbers and are evenly distributed around the axis of the circular ring 13. A sliding column 8 is slidably provided on the end of the square tube 7 away from the circular ring 13, and a square plate 9 is slidably connected to the interior of the square tube 7. A pressure sensor 10 is fixedly connected to the side of the square plate 9 facing away from the sliding column 8, and the pressure sensor 10 abuts against the inner wall of the square tube 7. A spring 18 is fixedly connected to the side of the sliding column 8 facing the square plate 9, and the end of the spring 18 away from the sliding column 8 is fixedly connected to the square plate 9.
[0025] Specifically, one end of the cylindrical blank away from the clamping member 17 extends into the interior of the circular ring 13, and multiple slides 8 are respectively abutted against different positions of the outer wall of the cylindrical blank. Under the extrusion of the cylindrical blank, the slide 8 is recovered to the interior of the square tube 7 and the extrusion spring 18 is contracted. Under the reset elastic force of the spring 18, the square plate 9 squeezes the pressure sensor 10, and the pressure sensor 10 detects the extrusion force; when the pressure values detected by multiple pressure sensors 10 are consistent, it means that the circles at both ends of the cylindrical blank are on the same straight line; when there are differences in the pressure values detected by multiple pressure sensors 10, it means that the cylindrical blank is tilted and needs to be adjusted. When the pressure sensor 10 at a certain position detects a larger pressure value, the cylindrical blank is tilted in that direction, and it needs to be adjusted in the opposite direction, thereby improving the processing accuracy.
[0026] In addition, the ring 13 slides on the T-shaped block 4, causing the ring 13 to rotate around the cylindrical blank, and the change in the pressure value detected by the pressure sensor 10 can be observed. When there is no change, it means that the circles at both ends of the cylindrical blank are on the same straight line; when there is a change, it means that the cylindrical blank is tilted.
[0027] Furthermore, the square bar 3 can be controlled to move on the fixed seat 2, driving the ring 13 to move around the outside of the cylindrical blank, and the change in the pressure value detected by the pressure sensor 10 can be observed. When there is no change, it means that the circles at both ends of the cylindrical blank are on the same straight line; when there is a change, it means that the cylindrical blank is tilted.
[0028] A display 14 is fixedly connected to the top of the operating table 1. The pressure value detected by the pressure sensor 10 can be displayed on the display 14 for easy observation by the operator.
[0029] After the calibration is completed, it is only necessary to control the square bar 3 to reset the ring 13 and other structures, which does not affect the processing and does not need to be removed from the lathe. The calibration can be performed during multiple processing, which can improve work efficiency.
[0030] By setting up structures such as the square tube 7, the sliding column 8 and the pressure sensor 10, the cylindrical blank can be subjected to multiple center calibration tests to improve the processing accuracy. It does not need to be removed from the lathe and can be calibrated during multiple processing, which can improve the working efficiency of the CNC machine tool.
[0031] In order to reduce the friction between the sliding post 8 and the cylindrical blank, a ball 11 is movably embedded in one end of the sliding post 8 away from the square tube 7, and the ball 11 rolls on the cylindrical blank.
[0032] A guide rod 12 is fixedly connected to the side of the slide post 8 that faces the movable seat 16. This rod is located at the end of the slide post 8 that is away from the square tube 7. The rod 12 is tilted, with the end away from the slide post 8 tilted away from the axis of the ring 13. The guide rod 12 facilitates the insertion of the end of the cylindrical blank away from the clamping member 17 into the interior of the ring 13. The rod is positioned between the multiple slide posts 8, making inspection easier.
[0033] In order to achieve the positioning of the circular ring 13, an electromagnet 5 is fixedly embedded at the end of the T-shaped block 4 away from the square bar 3. The circular ring 13 can be made of stainless steel that can be affected by magnetism. When the electromagnet 5 is running, under the action of magnetic force, the T-shaped block 4 and the circular ring 13 form a whole, and the circular ring 13 is positioned; and when the electromagnet 5 stops using, it does not affect the rotation of the circular ring 13.
Claims
1. A CNC lathe precision detection device, comprising an operating table (1), characterized in that: A fixed seat (2) is fixedly provided at one end of the top of the operating table (1), and a movable seat (16) is slidably provided at the other end of the top of the operating table (1). A circular ring (13) is rotatably provided on the side of the fixed seat (2) close to the movable seat (16). A square cylinder (7) is fixedly connected to the inner ring of the circular ring (13). A sliding column (8) is slidably provided on the end of the square cylinder (7) away from the circular ring (13). A square plate (9) is slidably connected inside the square cylinder (7). A pressure sensor (10) is fixedly connected to the side of the square plate (9) facing away from the sliding column (8). The pressure sensor (10) abuts against the inner wall of the square cylinder (7). A spring (18) is fixedly connected to the side of the sliding column (8) facing the square plate (9). The end of the spring (18) away from the sliding column (8) is fixedly connected to the square plate (9).
2. The CNC lathe precision detection device according to claim 1, characterized in that: The square tubes (7) are arranged in plurality, and the plurality of square tubes (7) are evenly distributed around the axis of the circular ring (13).
3. The CNC lathe precision detection device according to claim 1, characterized in that: A ball (11) is movably embedded in one end of the sliding column (8) away from the square tube (7).
4. The CNC lathe precision detection device according to claim 1, characterized in that: A guide rod (12) is fixedly connected to one side of the slide column (8) facing the movable seat (16). The guide rod (12) is located at the end of the slide column (8) away from the square tube (7). The guide rod (12) is tilted, and the end away from the slide column (8) is tilted in a direction away from the axis of the ring (13).
5. The CNC lathe precision detection device according to claim 1, characterized in that: A square bar (3) is slidably provided on the movable seat (16), a ring groove (6) is provided on a side of the circular ring (13) facing the fixed seat (2), a T-shaped block (4) is slidably provided inside the ring groove (6), and the T-shaped block (4) is fixedly connected to the square bar (3).
6. The CNC lathe precision detection device according to claim 5, characterized in that: An electromagnet (5) is fixedly embedded in one end of the T-shaped block (4) away from the square bar (3).
7. The CNC lathe precision detection device according to claim 1, characterized in that: A sliding groove (15) is provided on the top of the operating table (1), and the movable seat (16) is slidably arranged in the sliding groove (15). A clamping piece (17) is provided on the side of the movable seat (16) facing the fixed seat (2).
8. The CNC lathe precision detection device according to claim 1, characterized in that: A display (14) is fixedly connected to the top of the operating table (1).