A base structure for fixing a micrometer

Abstract

This utility model relates to the field of micrometer base technology and discloses a base structure for fixing a micrometer, including a base and a micrometer body. Symmetrical mounting plates are fixedly connected to the top of the base, and a rotating shaft is rotatably connected between the two mounting plates. One of the mounting plates is threaded with a fastening bolt for fixing the angle of the rotating shaft. A base plate is fixedly connected to the outer wall of the rotating shaft. A clamping plate is fixedly connected to one side of the top of the base plate, and a movable plate is slidably connected to the top of the base plate on the side of the clamping plate. With this base structure for fixing a micrometer, after the micrometer body is placed between the clamping plate and the movable plate, the movable plate is pushed to clamp the micrometer body with the clamping assembly and the clamping plate. The movable plate is then fixed by a limiting assembly, thus realizing the installation of the micrometer. This not only makes the installation of the micrometer more convenient, but also makes the micrometer more stable after it is installed on the base.

Description

Technical Field

[0001] This utility model relates to the field of micrometer base technology, specifically a base structure for fixing a micrometer. Background Technology

[0002] A micrometer, also known as a screw gauge, is a more precise length measuring tool than a vernier caliper, capable of measuring lengths to an accuracy of 0.01 mm. When measuring a workpiece with a micrometer, it is usually first fixed to a base, and then the workpiece is moved to the measuring aperture of the micrometer for measurement.

[0003] However, the existing clamping and fixing methods for micrometer bases are relatively simple, mostly using simple bolt locking structures. This not only makes it more troublesome for staff to clamp and fix the micrometer, but also results in insufficient clamping stability, which may lead to slight displacement during measurement and affect measurement accuracy.

[0004] To address the aforementioned issues, this application proposes a base structure for fixing a micrometer. Utility Model Content

[0005] The present invention aims to provide a base structure for fixing a micrometer, mainly to solve the problem that the existing clamping and fixing methods of micrometer bases are relatively simple, mostly using a simple bolt tightening structure. This not only makes it more troublesome for workers to clamp and fix the micrometer, but also results in insufficient clamping stability, which may lead to slight displacement during measurement and affect the measurement accuracy.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A base structure for fixing a micrometer includes a base and a micrometer body. Symmetrical mounting plates are fixedly connected to the top of the base. A rotating shaft is rotatably connected between the two mounting plates. A fastening bolt for fixing the angle of the rotating shaft is threaded onto one of the mounting plates. A base plate is fixedly connected to the outer wall of the rotating shaft. A clamping plate is fixedly connected to one side of the top of the base plate. A movable plate is slidably connected to the top of the base plate on the side of the clamping plate. A clamping assembly for fixing the micrometer body is provided on the side of the movable plate near the clamping plate. Symmetrical T-shaped blocks are fixedly connected to the bottom of the movable plate. A T-shaped groove matching the T-shaped block is opened on the top of the base plate. A limiting assembly for fixing the movable plate is provided on the bottom of the movable plate.

[0008] Preferably, the clamping assembly includes damping rods fixedly connected to the four corners of the movable plate near the clamping plate. A pressure plate is fixedly connected to the other end of each damping rod. A first spring is sleeved on the outer wall of the damping rod. One end of the first spring is fixedly connected to the pressure plate, and the other end is fixedly connected to the movable plate. When the micrometer frame is placed between the clamping plate and the pressure plate, the movable plate is pushed to move the pressure plate closer to the clamping plate. When the clamping plate and the pressure plate clamp the micrometer and both the damping rod and the first spring are compressed, the movable plate is fixed by the limiting assembly, thus achieving the installation of the micrometer. To remove it, simply pull the movable plate outwards. The operation is highly efficient. The force provided by the spring is flexible, adaptable to micrometer frames of different thicknesses, and provides a constant and suitable clamping force, preventing damage from excessive tightness or wobbling from excessive looseness. Compared to directly locking with metal bolts, this method reduces the risk of scratching the micrometer surface.

[0009] Preferably, rubber pads are fixedly connected to the sides of the clamping plate and the pressure plate, and the rubber pads are provided with anti-slip patterns. The anti-slip patterns and the rubber pads provide great static friction, which effectively prevents the micrometer from sliding or rotating during measurement and ensures measurement stability. As a buffer layer, the rubber pads completely avoid hard contact between the pressure plate or clamping plate and the metal surface of the micrometer, perfectly protecting the surface of the micrometer from scratches or bumps.

[0010] Preferably, the bottom of the T-block is rotatably connected to multiple ball bearings, which are distributed in a linear array at equal intervals on the T-block. When the moving plate needs to be slid, the ball bearings and the bottom surface of the T-slot form rolling friction, which significantly reduces the resistance when the moving plate slides, making the adjustment process very easy and smooth, providing a good user experience. Moreover, the rolling friction also reduces the wear between the T-block and the T-slot, improving the durability of the parts and the accuracy of long-term use.

[0011] Preferably, the limiting component includes a sliding cavity opened at the bottom of the movable plate, a sliding block slidably connected inside the sliding cavity, teeth fixedly connected at the bottom of the sliding block, and multiple second springs fixedly connected at the top. The upper ends of the second springs are fixedly connected to the top of the inner wall of the sliding cavity. Multiple toothed grooves matching the teeth are opened at the top of the bottom plate. A driving component for moving the sliding block is provided on the top of one side of the sliding block. Under the elastic force of the second springs, the sliding block is pushed down, so that the teeth at its bottom are embedded in the toothed grooves on the bottom plate. This is a mechanical interlock that fundamentally prevents any movement. When the moving plate needs to be adjusted, the drive assembly compresses the second spring and moves the entire sliding block upward, causing the teeth to disengage from the grooves. At this point, the moving plate can be easily slid. After moving to the ideal position, the second spring pushes the sliding block down again, and the teeth fall back into the grooves, achieving precise positioning and absolute locking. The entire process of "unlocking-sliding-locking" can be completed with a single finger, while the other hand can hold the micrometer body. The operation is very convenient and quick. The teeth and grooves mesh and lock together, which is a rigid connection with extremely strong vibration and impact resistance. This effectively prevents the possibility of slight slippage of the moving plate due to external forces during measurement, greatly improving the reliability and accuracy of the measurement results.

[0012] Preferably, the drive assembly includes a connecting block fixedly connected to the top of one side of the sliding block, and a movable plate extending from the other side of the connecting block and fixedly connected to a lever. The movable plate has a vertical groove that matches the connecting block. When the movable plate needs adjustment, the lever is pulled upwards with a finger. The lever, through the connecting block, drives the entire sliding block to compress the second spring and move upwards, causing the teeth to disengage from the groove. At this point, the movable plate can be easily slid. After moving to the desired position, the lever is released, and the second spring pushes the sliding block downwards again, causing the teeth to fall back into the groove, achieving precise positioning and absolute locking. This makes adjusting the position of the movable plate more convenient.

[0013] Preferably, the number of teeth is no less than three, and the teeth are distributed linearly and equidistantly on the sliding block. The bite force provided by the multiple teeth is very large, and the locking is extremely stable, which can ensure that the micrometer will not be displaced at all during the measurement process, thus guaranteeing the measurement accuracy.

[0014] The working principle and beneficial effects of this utility model:

[0015] Working principle: Loosening the fastening bolts allows the entire base plate and all its components to rotate around the axis, thus changing the micrometer's measuring angle to suit the measurement needs of different workpieces. After adjustment, tightening the fastening bolts locks the angle. The moving plate, via a T-shaped block at the bottom, engages with the T-slot in the base plate and can slide along the T-slot. Placing the micrometer body between the clamping plate and the moving plate, pushing the moving plate moves the clamping assembly closer to or further from the fixed clamping plate to accommodate different micrometer thicknesses. The limiting assembly then secures the moving plate in the desired position.

[0016] Beneficial effects: After placing the micrometer body between the clamping plate and the moving plate, push the moving plate to clamp the micrometer body with the clamping assembly and the clamping plate. Then, fix the moving plate with the limiting assembly to achieve the installation of the micrometer. This not only makes the installation of the micrometer more convenient, but also makes the micrometer more stable after it is installed on the base, which can expand the types of items that can be measured and ensure measurement accuracy. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the base of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the base of this utility model;

[0020] Figure 4 This is a schematic diagram of the overall structure of the movable plate and clamping assembly of this utility model.

[0021] In the diagram: 1. Base; 2. Micrometer body; 3. Mounting plate; 4. Shaft; 5. Fastening bolt; 6. Base plate; 7. Clamping plate; 8. Moving plate; 9. T-block; 10. T-slot; 11. Damping rod; 12. Pressure plate; 13. First spring; 14. Rubber pad; 15. Slide cavity; 16. Sliding block; 17. Tooth; 18. Second spring; 19. Tooth groove; 20. Connecting block; 21. Pulley; 22. Vertical groove; 23. Ball bearing. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4A base structure for fixing a micrometer includes a base 1 and a micrometer body 2. Symmetrical mounting plates 3 are fixedly connected to the top of the base 1. A rotating shaft 4 is rotatably connected between the two mounting plates 3. A fastening bolt 5 for fixing the angle of the rotating shaft 4 is threaded onto one of the mounting plates 3. A base plate 6 is fixedly connected to the outer wall of the rotating shaft 4. The micrometer body 2 is mounted on the base plate 6. Loosening the fastening bolt 5 allows the entire base plate 6 and all its components to rotate around the rotating shaft 4, thereby changing the measuring angle of the micrometer to adapt to the measurement needs of different workpieces. After adjustment, tightening the fastening bolt 5 locks the angle.

[0024] A clamping plate 7 is fixedly connected to one side of the top of the base plate 6. A movable plate 8 is slidably connected to the top of the base plate 6 on one side of the clamping plate 7. A clamping assembly for fixing the micrometer body 2 is provided on the side of the movable plate 8 near the clamping plate 7. After the micrometer body 2 is placed between the clamping plate 7 and the movable plate 8, pushing the movable plate 8 can move the clamping assembly closer to or away from the fixed clamping plate 7 to adapt to the thickness of different micrometers.

[0025] The bottom of the movable plate 8 is fixedly connected with symmetrical T-shaped blocks 9. The top of the base plate 6 is provided with a T-shaped groove 10 that matches the T-shaped blocks 9. The movable plate 8 is embedded in the T-shaped groove 10 of the base plate 6 through the bottom T-shaped blocks 9 and can slide along the direction of the T-shaped groove 10. The bottom of the movable plate 8 is provided with a limiting component for fixing it. The limiting component fixes the movable plate 8 in the desired position.

[0026] More specifically, the clamping assembly includes damping rods 11 fixedly connected to the four corners of the movable plate 8 near the clamping plate 7. The other end of the damping rods 11 is fixedly connected to a pressure plate 12. A first spring 13 is sleeved on the outer wall of the damping rods 11. One end of the first spring 13 is fixedly connected to the pressure plate 12, and the other end is fixedly connected to the movable plate 8. When the micrometer frame is placed between the clamping plate 7 and the pressure plate 12, the movable plate 8 is pushed to move the pressure plate 12 closer to the clamping plate 7. When the clamping plate 7 and the pressure plate 12 clamp the micrometer and the damping rods 11 and the first spring 13 are both in a compressed state, the movable plate 8 is fixed by the limiting assembly, thus realizing the installation of the micrometer. When removing it, simply pull the movable plate 8 outward. The operation efficiency is extremely high. The force provided by the spring is flexible and can adapt to micrometer frames of different thicknesses, and provide a constant and appropriate clamping force, avoiding damage to the frame due to excessive tightness or wobbling due to excessive looseness. Compared with directly tightening with metal bolts, this method reduces the risk of scratching the surface of the micrometer.

[0027] More specifically, rubber pads 14 are fixedly connected to the side of the clamping plate 7 opposite to the pressure plate 12, and the rubber pads 14 are provided with anti-slip texture. The anti-slip texture and the rubber pads 14 provide great static friction, which effectively prevents the micrometer from sliding or rotating during measurement and ensures measurement stability. As a buffer layer, the rubber pads 14 completely avoid hard contact between the pressure plate 12 or clamping plate 7 and the metal surface of the micrometer, perfectly protecting the surface of the micrometer from scratches or bumps.

[0028] More specifically, the bottom of the T-block 9 is rotatably connected to multiple ball bearings 23, which are distributed in a linear array at equal intervals on the T-block 9. When the sliding plate 8 needs to be slid, the ball bearings 23 and the bottom surface of the T-groove 10 form rolling friction. This significantly reduces the resistance when the sliding plate 8 slides, making the adjustment process very easy and smooth, providing a good user experience. Moreover, the rolling friction also reduces the wear between the T-block 9 and the T-groove 10, improving the durability of the parts and the accuracy of long-term use.

[0029] More specifically, the limiting component includes a sliding cavity 15 at the bottom of the movable plate 8, a sliding block 16 slidably connected inside the sliding cavity 15, teeth 17 fixedly connected to the bottom of the sliding block 16, and multiple second springs 18 fixedly connected to the top. The upper end of the second springs 18 is fixedly connected to the top of the inner wall of the sliding cavity 15. Multiple toothed grooves 19 matching the teeth 17 are opened on the top of the base plate 6. A driving component for moving the sliding block 16 is provided on the top of one side. Under the elastic force of the second springs 18, the sliding block 16 is pushed downward, so that the teeth 17 at its bottom are embedded in the toothed grooves 19 on the base plate 6. This is a mechanical interlock that fundamentally prevents any movement. When the moving plate 8 needs to be adjusted, the entire sliding block 16 is compressed by the drive component to move the second spring 18 upward, thereby disengaging the tooth 17 from the tooth groove 19. At this point, the moving plate 8 can be easily slid. After moving to the ideal position, the second spring 18 pushes the sliding block 16 down again, and the tooth 17 falls back into the tooth groove 19, achieving precise positioning and absolute locking. The entire process of "unlocking-sliding-locking" can be completed with a single finger, while the other hand can hold the micrometer body 2. The operation is very convenient and quick. The tooth 17 and the tooth groove 19 are engaged and locked, which is a rigid connection with strong vibration and impact resistance. This effectively prevents the possibility of slight slippage of the moving plate 8 due to external forces during the measurement process, greatly improving the reliability and accuracy of the measurement results.

[0030] More specifically, the drive assembly includes a connecting block 20 fixedly connected to the top of one side of the sliding block 16. A movable plate 8 extends from the other side of the connecting block 20 and is fixedly connected to a lever 21. The movable plate 8 has a vertical groove 22 that matches the connecting block 20. When adjusting the movable plate 8, the lever 21 is pulled upwards with a finger. The lever 21, through the connecting block 20, drives the entire sliding block 16 to compress the second spring 18 and move upwards, causing the tooth 17 to disengage from the tooth groove 19. At this point, the movable plate 8 can be easily slid. After moving to the desired position, the lever 21 is released, and the second spring 18 pushes the sliding block 16 downwards again, causing the tooth 17 to fall back into the tooth groove 19, achieving precise positioning and absolute locking. This makes adjusting the position of the movable plate 8 more convenient.

[0031] More specifically, there are no fewer than three teeth 17, and the teeth 17 are distributed linearly and equidistantly on the sliding block 16. The bite force provided by the multiple teeth 17 is very large, and the locking is extremely stable, which can ensure that the micrometer will not move at all during the measurement process, thus guaranteeing the measurement accuracy.

[0032] As can be seen from the above, the specific embodiments of this utility model are as follows:

[0033] After placing the micrometer body 2 between the clamping plate 7 and the moving plate 8, push the moving plate 8 to move the pressure plate 12 closer to the clamping plate 7. At the same time, the teeth 17 are subjected to an upward force from the tooth groove 19, which causes the sliding block 16 to move upward. When the clamping plate 7 and the pressure plate 12 clamp the micrometer and the damping rod 11 and the first spring 13 are both in a compressed state, the sliding block 16 is pushed downward under the elastic force of the second spring 18, so that the teeth 17 at its bottom are embedded in the tooth groove 19 on the base plate 6, which can effectively lock the moving plate 8, thus completing the installation of the micrometer. Rotate the fastening bolt 5 to loosen it, and the entire base plate 6 and all its components can rotate around the rotating shaft 4, thereby changing the measuring angle of the micrometer to adapt to the measurement needs of different workpieces. After adjustment, tighten the fastening bolt 5 to lock the angle. At this time, the micrometer can be used normally. When it is necessary to remove the micrometer, use your fingers to pull the lever 21 upward. The lever 21 drives the entire sliding block 16 to compress the second spring 18 and move upward through the connecting block 20, thereby causing the teeth 17 to disengage from the tooth groove 19. At this time, the moving plate 8 can be easily slid and the pressure plate 12 can be moved away from the micrometer body 2, making it convenient for the staff to remove the micrometer. This not only makes the disassembly and assembly of the micrometer more convenient, but also makes the micrometer more stable after it is installed on the base 1, which can expand the types of items to be measured and ensure measurement accuracy.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A base structure for fixing a micrometer, comprising a base (1) and a micrometer body (2), characterized in that, The base (1) is fixedly connected to the top of a symmetrical mounting plate (3), and a rotating shaft (4) is rotatably connected between the two mounting plates (3). One of the mounting plates (3) is threaded with a fastening bolt (5) for fixing the angle of the rotating shaft (4). The outer wall of the rotating shaft (4) is fixedly connected to a base plate (6). A clamping plate (7) is fixedly connected to one side of the top of the base plate (6). A movable plate (8) is slidably connected to the top of the base plate (6) on one side of the clamping plate (7). A clamping assembly for fixing the micrometer body (2) is provided on the side of the movable plate (8) close to the clamping plate (7). A symmetrical T-shaped block (9) is fixedly connected to the bottom of the movable plate (8). A T-shaped groove (10) matching the T-shaped block (9) is opened on the top of the base plate (6). A limiting assembly for fixing the movable plate (8) is provided on the bottom of the movable plate (8).

2. The base structure for fixing a micrometer according to claim 1, characterized in that: The clamping assembly includes a damping rod (11) fixedly connected to the four corners of the moving plate (8) near the clamping plate (7). The other end of the damping rod (11) is fixedly connected to a pressure plate (12). A first spring (13) is sleeved on the outer wall of the damping rod (11). One end of the first spring (13) is fixedly connected to the pressure plate (12), and the other end is fixedly connected to the moving plate (8).

3. The base structure for fixing a micrometer according to claim 2, characterized in that: The clamping plate (7) and the pressure plate (12) are both fixedly connected to a rubber pad (14), and the rubber pad (14) is provided with anti-slip texture.

4. A base structure for fixing a micrometer according to claim 1, characterized in that: The bottom of the T-shaped block (9) is rotatably connected to multiple ball bearings (23), and the ball bearings (23) are distributed in a linear array at equal intervals on the T-shaped block (9).

5. A base structure for fixing a micrometer according to claim 1, characterized in that: The limiting component includes a sliding cavity (15) at the bottom of the movable plate (8), a sliding block (16) is slidably connected inside the sliding cavity (15), a tooth (17) is fixedly connected to the bottom of the sliding block (16), and multiple second springs (18) are fixedly connected to the top. The upper end of the second springs (18) is fixedly connected to the top of the inner wall of the sliding cavity (15). Multiple tooth grooves (19) matching the tooth (17) are opened on the top of the bottom plate (6). A driving component for moving the sliding block (16) is provided on the top of one side.

6. A base structure for fixing a micrometer according to claim 5, characterized in that: The drive assembly includes a connecting block (20) fixedly connected to the top of one side of the sliding block (16), and a movable plate (8) extending from the other side of the connecting block (20) and fixedly connected to a lever (21). The movable plate (8) has a vertical groove (22) that matches the connecting block (20).

7. A base structure for fixing a micrometer according to claim 5, characterized in that: The number of teeth (17) is not less than three, and the teeth (17) are distributed in a linear array at equal intervals on the sliding block (16).

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