A flatness calibration device

Abstract

The utility model relates to planeness detection technical field especially is a kind of planeness calibration device, including datum seat, the top of datum seat is fixedly connected with counterweight ring, the top of counterweight ring is fixedly connected with rotating seat, the outside of rotating seat is rotatably connected with rotor, the side equidistance of rotor is fixedly connected with slide bar, the surface of slide bar is slidably connected with sliding block, the center of sliding block is fixedly connected with digital dial micrometer, the center of rotating seat is threadedly connected with threaded rod, the top of threaded rod is fixedly connected with cover plate, the bottom of threaded rod is buckled with snap spring. The utility model aims at providing a kind of planeness calibration device to solve the problem that traditional dial gauge or dial gauge fixed planeness calibration device is only suitable for measuring small quality workpiece, and for some heavy workpiece, its operation is time-consuming and laborious, calibration efficiency is slow, and there is certain limitation in practical application process.

Description

Technical Field

[0001] This utility model relates to the field of flatness detection technology, specifically a flatness calibration device. Background Technology

[0002] In certain fields that require high precision, the flatness of components is just as important as dimensional accuracy. However, the flatness of component surfaces is easily affected by various environmental factors, which can lead to errors.

[0003] Traditional flatness calibration devices are mostly fixed dial indicators or micrometers. The principle is to use the measuring head at the bottom of the dial indicator to be in close contact with the workpiece surface, and to change the measuring point by moving the workpiece. Flatness calibration is performed by using the difference in measurement data. However, this method is only suitable for measuring workpieces with small mass. For some workpieces with larger mass, the operation is time-consuming and laborious, and the calibration efficiency is slow, which has certain limitations in practical applications. Utility Model Content

[0004] The purpose of this invention is to provide a flatness calibration device to solve the problem that traditional dial indicator or micrometer fixed flatness calibration devices are only suitable for measuring workpieces with small mass, while for some workpieces with larger mass, the operation is time-consuming and laborious, the calibration efficiency is slow, and there are certain limitations in practical applications.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A flatness calibration device includes a reference base, a counterweight ring fixedly connected to the top of the reference base, a rotating base fixedly connected to the top of the counterweight ring, a rotor rotatably connected to the outer side of the rotating base, a slide rod fixedly connected at equal intervals to one side of the rotor, a slider slidably connected to the surface of the slide rod, a digital dial indicator fixedly connected to the center of the slider, a threaded rod threadedly connected to the center of the rotating base, a cover plate fixedly connected to the top of the threaded rod, a snap-fit ​​spring connected to the bottom of the threaded rod, a handle fixedly connected to the center of the top of the cover plate, and steel balls filling the space between the inner side of the rotor and the outer side of the rotating base, and between the upper and lower end faces of the rotor and the top of the rotating base and the bottom of the cover plate.

[0007] Preferably, the bottom of the reference base is designed as a six-part circular disk, and the flatness error of the bottom plane of each disk is less than one ten-thousandth.

[0008] Preferably, a limit block is fixedly connected to the outer end of the slide rod.

[0009] Preferably, the parallelism error between the axis of the slide rod and the ground of the reference base is less than one ten-thousandth, and the handle, cover plate, threaded rod, rotor, swivel, counterweight ring and reference base are all coaxially designed, and the coincidence error of the axis is less than one ten-thousandth.

[0010] Preferably, the top of the digital dial indicator has an integrated external wiring connection.

[0011] Preferably, the retaining ring is located at the bottom of the swivel.

[0012] Preferably, the handle has an integrated card slot.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, a digital dial indicator with a fixed-point rotation and left-right horizontal movement design can be used to freely collect flatness data within a certain range of the tool surface. The data is then uploaded to a computer in real time, and the computer can quickly and accurately provide feedback on the flatness of the workpiece surface. This facilitates rapid calibration of the workpiece surface flatness for workers. At the same time, the entire device has a compact structure and small size, allowing for flexible movement without moving the workpiece. It can simultaneously meet the rapid calibration of the flatness of workpiece surfaces of both light and heavy weights. Attached Figure Description

[0015] Figure 1 This is a top-axis view of a flatness calibration device according to the present invention;

[0016] Figure 2 This is a lower axial view of a flatness calibration device according to the present invention;

[0017] Figure 3 This is a diagram showing the rotor, rotary seat, and cover plate of a flatness calibration device according to this utility model in their separated state.

[0018] Figure 4 This is a side cross-sectional view of a flatness calibration device according to the present invention.

[0019] In the diagram: 1. Base plate; 2. Counterweight ring; 3. Rotor; 4. Rotor; 5. Slide rod; 6. Slider; 7. Digital dial indicator; 8. Threaded rod; 9. Cover plate; 10. Snap ring; 11. Handle; 12. Steel ball; 13. Limit block; 14. External wiring; 15. Slot. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4This utility model provides a technical solution:

[0022] A flatness calibration device includes a reference base 1 for fixing the workpiece surface; a counterweight ring 2 is fixedly connected to the top of the reference base 1 for counterweighting and preventing tilting; a rotating base 3 is fixedly connected to the top of the counterweight ring 2, and a rotor 4 is rotatably connected to the outer side of the rotating base 3, allowing a sliding rod to rotate around the axis of the reference base to achieve free calibration of the digital dial indicator in the circumferential direction of the calibration point; a sliding rod 5 is fixedly connected at equal intervals to one side of the rotor 4, and a slider 6 is slidably connected to the surface of the sliding rod 5, allowing the digital dial indicator to move laterally along the surface of the sliding rod, thereby achieving free calibration of the digital dial indicator in the radial direction of the calibration point; thus, by flexibly switching between radial and circumferential directions, it can achieve calibration within a certain range outside the calibration point. Flatness can be freely calibrated; a digital micrometer 7 is fixedly connected to the center of the slider 6, which is used to detect minute height differences on the workpiece surface and use the difference to judge its flatness (the smaller the difference, the higher the flatness, and vice versa); a threaded rod 8 is threadedly connected to the center of the rotary seat 3, a cover plate 9 is fixedly connected to the top of the threaded rod 8, and a snap ring 10 is snapped to the bottom of the threaded rod 8 to meet the design of the cover plate and the reference seat as an integrated structure; a handle 11 is fixedly connected to the center of the top of the cover plate 9, which facilitates the lifting of the device under force and the free switching of calibration points; steel balls 12 are filled between the inner side of the rotor 4 and the outer side of the rotary seat 3, and between the upper and lower end faces of the rotor 4 and the top of the rotary seat 3 and the bottom of the cover plate 9 to reduce movement resistance and ensure measurement stability.

[0023] In this embodiment, please refer to Figure 2 The bottom of the reference base 1 is designed with six equally divided disks, and the flatness error of the bottom plane of each disk is less than one ten-thousandth, ensuring the flatness of the bottom of the reference base.

[0024] In this embodiment, please refer to Figure 1 The outer end of the slide bar 5 is fixedly connected to a limit block 13, which is used to limit the movement of the slide bar and prevent it from falling off.

[0025] In this embodiment, the parallelism error between the axis of the slide rod 5 and the ground of the reference base 1 is less than one ten-thousandth, ensuring that the parallelism between the slide rod and the bottom surface of the reference base is consistent, and ensuring that the reading of the digital dial indicator remains unchanged during the transverse movement of the slide rod on the standard plane; the handle 11, cover plate 9, threaded rod 8, rotor 4, rotating base 3, counterweight ring 2 and reference base 1 are all coaxially designed, and the coincidence error of the axis is less than one ten-thousandth, ensuring that the slide rod rotates coaxially, and ensuring that the reading of the digital dial indicator remains unchanged on the circumferential rotation of the slide rod on the standard plane.

[0026] In this embodiment, please refer to Figure 1 The top of the digital micrometer 7 has an integrated external wiring 14 for connecting to an external computer, which facilitates the rapid calculation of the height difference between each detection point within a certain range outside the calibration point, thus enabling rapid calibration of the flatness at the calibration point.

[0027] In this embodiment, please refer to Figure 2 The retaining ring 10 is located at the bottom of the swivel 3 to prevent the threaded rod from loosening and to ensure structural stability.

[0028] In this embodiment, please refer to Figure 3 The handle 11 has an integrated slot 15, which facilitates the disassembly and assembly of the cover plate for device maintenance and calibration.

[0029] The working principle of this utility model is as follows: When in use, the reference base 1 is placed and fixed on the surface of the workpiece, and then the digital micrometer 7 is zeroed. Then, the digital micrometer 7 is moved along the slide bar 5 to achieve radial flatness calibration by rotating the calibration point at a fixed point. Rotating along the axial direction of the reference base 1 achieves circumferential flatness calibration by rotating the calibration point at a fixed point. Thus, by flexibly changing the calibration point in the radial and circumferential directions, the flatness can be freely calibrated within a certain range outside the calibration point. By continuously changing the calibration point, the flatness of the workpiece surface can be fully covered for calibration.

[0030] Device calibration: Before use, place the device on a reference plane (a plane close to zero error) periodically, then zero the digital micrometer, and move the digital micrometer left and right and rotate it to observe the reading. If the reading remains unchanged, the device is normal; if the reading changes, the device is abnormal.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flatness calibration device, characterized in that: The system includes a reference base (1), a counterweight ring (2) fixedly connected to the top of the reference base (1), a rotating base (3) fixedly connected to the top of the counterweight ring (2), a rotor (4) rotatably connected to the outer side of the rotating base (3), a slide rod (5) fixedly connected at equal intervals to one side of the rotor (4), a slider (6) slidably connected to the surface of the slide rod (5), a digital micrometer (7) fixedly connected to the center of the slider (6), a threaded rod (8) threadedly connected to the center of the rotating base (3), a cover plate (9) fixedly connected to the top of the threaded rod (8), a snap ring (10) snapped to the bottom of the threaded rod (8), a handle (11) fixedly connected to the center of the top of the cover plate (9), and steel balls (12) filling the space between the inner side of the rotor (4) and the outer side of the rotating base (3) and between the upper and lower end faces of the rotor (4) and the top of the rotating base (3) and the bottom of the cover plate (9).

2. The flatness calibration device according to claim 1, characterized in that: The bottom of the reference base (1) is designed as a six-part circular disk, and the flatness error of the bottom plane of each disk is less than one ten-thousandth.

3. The flatness calibration device according to claim 1, characterized in that: The outer end of the slide bar (5) is fixedly connected to a limiting block (13).

4. The flatness calibration device according to claim 1, characterized in that: The parallelism error between the axis of the slide rod (5) and the ground of the reference seat (1) is less than one ten-thousandth. The handle (11), cover plate (9), threaded rod (8), rotor (4), swivel seat (3), counterweight ring (2) and reference seat (1) are all coaxially designed, and the coincidence error of the axis is less than one ten-thousandth.

5. The flatness calibration device according to claim 1, characterized in that: The digital dial indicator (7) has an external wiring (14) integrated on its top.

6. The flatness calibration device according to claim 1, characterized in that: The snap ring (10) is located at the bottom of the swivel (3).

7. The flatness calibration device according to claim 1, characterized in that: The handle (11) has an integrated slot (15).

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