A device for measuring flatness

Abstract

The utility model discloses a kind of devices for measuring flatness, magnetic force disc is detachably installed on the movable part on tilting table, multiple positioning strip magnetism is absorbed on magnetic force disc, column is installed on the fixed part on tilting table, one end of cantilever is rotatably installed on column and is locked by bolt, height gauge is slidably installed on the other end of cantilever and is locked by bolt, the detection end of height gauge is towards workpiece between positioning strip. When using the device to measure the surface flatness of workpiece, multiple positioning strips can be used to form a limiting space around the workpiece first, then the workpiece is placed in the limiting space, which is convenient to operate and can adapt to workpieces of various sizes. Moreover, the angle of the tilting table can be adjusted according to the inclination angle of the surface to be measured of the workpiece to compensate for the inclination angle of the surface to be measured of the workpiece to make it level, facilitating the measurement of the height gauge. The device is simple and convenient to operate, greatly shortens the time in the placement and position adjustment of the workpiece, and improves the efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of flatness testing equipment, and in particular to a device for measuring flatness. Background Technology

[0002] For workpieces with high flatness requirements, a micrometer or height gauge is needed to measure the surface to check if the flatness meets the requirements. For regular planar objects, such as workpieces shaped like discs, cubes, or cuboids, simply place the workpiece on a measuring table and use a measuring instrument to check its flatness. The measuring instrument should be kept at a constant height during measurement. However, when two opposite surfaces of the workpiece are not parallel, it is difficult to measure them smoothly. Generally, appropriate blocks or clamps are needed to adjust the surfaces to be measured to be parallel before moving the measuring instrument for measurement.

[0003] Currently, one of the reasons for the low efficiency of flatness measurement of workpieces is that it is difficult to quickly place and adjust the levelness of the workpiece surface to be measured on the testing table, which makes the flatness measurement process relatively slow. There is an urgent need for a flatness measurement device that can improve the testing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a device for measuring flatness, so as to solve the problem that it is difficult to quickly place and adjust the level of the workpiece surface to be measured on the testing table, resulting in low efficiency in the flatness measurement process.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A device for measuring flatness includes a tilting table, a magnetic disk, positioning strips, a column, a cantilever, and a height gauge. The magnetic disk is detachably mounted on a movable part of the tilting table. Multiple positioning strips are magnetically attracted to the magnetic disk. The column is mounted on a fixed part of the tilting table. One end of the cantilever is rotatably mounted on the column and locked with bolts. The height gauge is slidably mounted on the other end of the cantilever and locked with bolts. The detection end of the height gauge faces the workpiece between the positioning strips.

[0007] A further technical solution is that the magnetic disk consists of a plastic plate and magnetic blocks embedded in the plastic plate.

[0008] A further technical solution is that finger holes are provided on both the magnetic disk and the positioning strip.

[0009] A further technical solution is: the tilting table includes a base, a flipping plate, and a support mechanism. The side of the base and the side of the flipping plate are rotatably connected. The support mechanism is installed on the base, and the support end of the support mechanism abuts against the bottom surface of the flipping plate.

[0010] A further technical solution is as follows: the support mechanism includes a double-threaded rod, a slider, and a connecting rod. The double-threaded rod is rotatably mounted on the base. The sliders are symmetrically arranged and slidably mounted in the grooves of the base. The two sliders are threadedly connected to the double-threaded rod. One end of the two connecting rods is rotatably connected, and the other end of the two connecting rods is rotatably connected to the two sliders respectively.

[0011] A further technical solution is as follows: the cantilever includes a sleeve, a crossbar, a swing arm, and a clamp. The sleeve is slidably installed on the column and locked with bolts. The crossbar is horizontally arranged and one end is connected to the sleeve. The swing arm is horizontally arranged and one end is rotatably connected to the other end of the crossbar. The clamp is installed on the other end of the swing arm. The height gauge is slidably installed in the clamp and locked with bolts.

[0012] A further technical solution is that the swing arm is a telescopic rod.

[0013] A further technical solution is that the positioning strip is provided with multiple mounting holes, and a stop bar is slidably installed in the mounting holes.

[0014] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0015] This invention proposes a device for measuring flatness. When using this device to measure the surface flatness of a workpiece, multiple positioning bars can be used to form a limiting space around the workpiece, and then the workpiece can be placed in the limiting space. The operation is convenient and adaptable to workpieces of various sizes. Furthermore, the angle of the tilting table can be adjusted according to the tilt angle of the workpiece's surface to be measured, compensating for the tilt angle and ensuring it is horizontal, facilitating height gauge measurement. This device is simple and quick to operate, significantly reducing time and improving efficiency in the workpiece placement and position adjustment stages. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a device for measuring flatness according to the present invention.

[0017] Figure 2 This utility model Figure 1 A schematic diagram of the structure in another state.

[0018] Figure 3 This utility model Figure 1 A schematic diagram of the tilting turntable.

[0019] Figure 4 This utility model Figure 1 A schematic diagram of the cantilever structure.

[0020] Figure 5 This utility model Figure 1 A schematic diagram of the positioning bar.

[0021] Reference numerals in the attached diagram: 1. Tilting table; 2. Magnetic disk; 3. Positioning strip; 4. Column; 5. Cantilever; 6. Height gauge; 7. Base; 8. Flip plate; 9. Support mechanism; 10. Double threaded rod; 11. Slider; 12. Connecting rod; 13. Rod sleeve; 14. Crossbar; 15. Swing rod; 16. Clamp; 17. Stop bar. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0028] This implementation example Figure 1 and Figure 2 As shown, a device for measuring flatness includes a tilting table 1, a magnetic disk 2, positioning strips 3, a column 4, a cantilever 5, and a height gauge 6. The magnetic disk 2 is detachably installed on a movable part of the tilting table 1. Multiple positioning strips 3 are magnetically attracted to the magnetic disk 2. The column 4 is installed on a fixed part of the tilting table 1. One end of the cantilever 5 is rotatably installed on the column 4 and locked by bolts. The height gauge 6 is slidably installed on the other end of the cantilever 5 and locked by bolts. The detection end of the height gauge 6 faces the workpiece between the positioning strips 3.

[0029] First, the magnetic disk 2 is installed on the movable part of the tilting table 1. Then, with the help of magnetic force, multiple positioning strips 3 are placed on the magnetic disk 2. The positioning strips 3 form a limiting space that surrounds and supports the workpiece. The workpiece is then placed in the limiting space. This workpiece positioning step is convenient to operate and can be adapted to workpieces of various sizes. Next, the angle of the movable part of the tilting table 1 can be adjusted according to the tilt angle of the workpiece's surface to be measured, in order to compensate for the tilt angle of the workpiece's surface to be measured and make it horizontal, facilitating the measurement of the workpiece surface flatness by the height gauge 6. This device is simple and convenient to operate, greatly reducing the time and improving efficiency in the workpiece placement and position adjustment stages.

[0030] Preferably, the magnetic disk 2 consists of a plastic plate and magnetic blocks embedded in the plastic plate.

[0031] The magnetic block can be set as a whole in the plastic plate, or it can be evenly installed in the plastic plate horizontally or vertically. The magnetic block mainly serves to attract the positioning strip 3. The positioning strip 3 can be a soft magnetic strip or an iron block. The plastic plate does not attract the magnetic block, making it easy to remove the magnetic block.

[0032] Preferably, both the magnetic disk 2 and the positioning strip 3 are provided with finger holes.

[0033] Finger hole Figure 1 and Figure 2 Although not explicitly stated, it is clear that the purpose of the finger holes is to facilitate the assembly and disassembly of the magnetic disk 2 and the positioning strip 3. Example

[0034] Based on the above embodiments, this embodiment, for example Figure 3 As shown, the tilting table 1 includes a base 7, a tilting plate 8, and a support mechanism 9. The side of the base 7 and the side of the tilting plate 8 are rotatably connected. The support mechanism 9 is mounted on the base 7, and the supporting end of the support mechanism 9 abuts against the bottom surface of the tilting plate 8. The support mechanism 9 includes a double-threaded rod 10, sliders 11, and connecting rods 12. The double-threaded rod 10 is rotatably mounted on the base 7. The sliders 11 are symmetrically arranged and slidably mounted in the grooves of the base 7. The two sliders 11 are threadedly connected to the double-threaded rod 10. One end of the two connecting rods 12 is rotatably connected, and the other end of the two connecting rods 12 is rotatably connected to the two sliders 11 respectively.

[0035] When the double threaded rod 10 rotates, the two sliders 11 move towards or away from each other to control the two connecting rods 12 to arch up or fall down, thereby controlling the tilt angle of the flip plate 8.

[0036] It is worth noting that in order to prevent the tilting plate 8 from tipping over due to excessive tilting, an ear plate can be set at the common rotational connection of the two connecting rods 12. The ear plate is slidably connected to the bottom groove of the tilting plate 8 to prevent the tilting plate 8 from tipping over. Example

[0037] Based on the above embodiments, this embodiment, for example Figure 4 As shown, the cantilever 5 includes a sleeve 13, a crossbar 14, a swing arm 15, and a clamp 16. The sleeve 13 is slidably mounted on the column 4 and locked with bolts. The crossbar 14 is horizontally positioned with one end connected to the sleeve 13. The swing arm 15 is horizontally positioned with one end rotatably connected to the other end of the crossbar 14. The clamp 16 is mounted on the other end of the swing arm 15. A height gauge 6 is slidably mounted in the clamp 16 and locked with bolts. The swing arm 15 is a telescopic rod.

[0038] The height of the cantilever 5 can be adjusted on the column 4 via the sleeve 13, and the height gauge 6 can be moved back and forth via the swing arm 15. During this time, the swing arm 15 can also extend and retract, so that the height gauge 6 can move freely within a certain range of the horizontal plane to adapt to the measurement of the flatness of the workpiece surface.

[0039] Preferably, such as Figure 5 As shown, the positioning strip 3 has multiple mounting holes, and a stop bar 17 is slidably installed in the mounting holes.

[0040] The stop bar 17 can be detachably installed in the mounting hole of the positioning bar 3 to extend its height and accommodate the placement limit of workpieces with greater height.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for measuring flatness, characterized in that: The device includes a tilting table (1), a magnetic disk (2), positioning bars (3), a column (4), a cantilever (5), and a height gauge (6). The magnetic disk (2) is detachably mounted on a movable part of the tilting table (1). Multiple positioning bars (3) are magnetically attracted to the magnetic disk (2). The column (4) is mounted on a fixed part of the tilting table (1). One end of the cantilever (5) is rotatably mounted on the column (4) and locked with bolts. The height gauge (6) is slidably mounted on the other end of the cantilever (5) and locked with bolts. The detection end of the height gauge (6) faces the workpiece between the positioning bars (3).

2. The device for measuring flatness according to claim 1, characterized in that: The magnetic disk (2) consists of a plastic plate and magnetic blocks embedded in the plastic plate.

3. The device for measuring flatness according to claim 1, characterized in that: Both the magnetic disk (2) and the positioning strip (3) are provided with finger holes.

4. The device for measuring flatness according to claim 1, characterized in that: The tilting platform (1) includes a base (7), a flip plate (8) and a support mechanism (9). The side of the base (7) and the side of the flip plate (8) are rotatably connected. The support mechanism (9) is installed on the base (7) and the support end of the support mechanism (9) abuts against the bottom surface of the flip plate (8).

5. The device for measuring flatness according to claim 4, characterized in that: The support mechanism (9) includes a double threaded rod (10), a slider (11) and a connecting rod (12). The double threaded rod (10) is rotatably mounted on the base (7). The sliders (11) are symmetrically arranged and slidably mounted in the grooves of the base (7). The two sliders (11) are threadedly connected to the double threaded rod (10). One end of the two connecting rods (12) is rotatably connected, and the other end of the two connecting rods (12) is rotatably connected to the two sliders (11) respectively.

6. The device for measuring flatness according to claim 1, characterized in that: The cantilever (5) includes a sleeve (13), a crossbar (14), a swing arm (15), and a clamp (16). The sleeve (13) is slidably mounted on the column (4) and locked with bolts. The crossbar (14) is horizontally arranged and one end is connected to the sleeve (13). The swing arm (15) is horizontally arranged and one end is rotatably connected to the other end of the crossbar (14). The clamp (16) is installed on the other end of the swing arm (15). The height gauge (6) is slidably mounted in the clamp (16) and locked with bolts.

7. The device for measuring flatness according to claim 6, characterized in that: The swing arm (15) is a telescopic rod.

8. The device for measuring flatness according to claim 1, characterized in that: The positioning strip (3) is provided with multiple mounting holes, and a stop bar (17) is slidably installed in the mounting holes.

Images