Multi-mode micrometer caliper and measuring method

Abstract

The invention discloses a multi-mode spiral micrometer and a measuring method, the multi-mode spiral micrometer comprises a ruler frame, the middle part of the ruler frame is provided with a micrometric screw with scales, one end of the ruler frame is provided with an adjusting part for driving the micrometric screw to move, and the ruler frame is rotatably provided with a second diameter measuring rod; the measuring scale comprises a scale frame, a micrometric screw and a connecting base fixedly connected to the bottom of the scale frame, a measuring wall is arranged at the bottom of the connecting base, and a measuring anvil corresponding to the micrometric screw is fixedly connected to one side of the inner wall of the measuring wall. Rotating and adjusting the measuring wall to a proper position, enabling the reference plate to be in contact with the end part of the measured material, adjusting the micrometric screw to be inserted into the to-be-measured depth, and calculating the depth according to the extension length of the micrometric screw to meet a depth measurement scene; the second diameter measuring rod and the first diameter measuring rod are adjusted to the upper portion and linked, the distance between the two is adjusted, when the two are in contact with the inner wall of the pipe fitting, data are read, the inner diameter is calculated, and the inner diameter size of the pipe fitting can be accurately measured.

Description

Technical Field

[0001] This invention relates to the field of micrometer technology, specifically to a multi-mode micrometer and its measurement method. Background Technology

[0002] In numerous industrial fields such as mechanical manufacturing, precision machining, and quality inspection, accurately measuring the dimensional parameters of objects is a crucial step in ensuring product quality and the smooth operation of production processes. Micrometers are widely used in various precision measurements; they are precision instruments used to measure minute lengths or thicknesses and are widely applied in machining, materials science, and laboratories. However, existing micrometers have limited functionality, only capable of simple length measurements. They are incapable of measuring special dimensions such as depth or the inner diameter of pipes, and therefore cannot meet the diverse measurement environments and needs. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-mode micrometer and measurement method to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a multi-mode micrometer, comprising: A ruler frame, wherein a micrometer screw with graduations is provided in the middle of the ruler frame, an adjustment part for driving the micrometer screw to move is installed at one end of the ruler frame, and a diameter measuring rod is provided for rotation of the ruler frame; A connecting base is fixed to the bottom of the ruler frame. A measuring wall is provided at the bottom of the connecting base. A measuring anvil corresponding to the micrometer screw is fixed to one side of the inner wall of the measuring wall. A switching part is placed at one end of the ruler frame. The switching part includes a sliding ring that is laterally disposed at the end of the ruler frame. One end of the sliding ring is provided with a reference plate for conforming to the end of the workpiece to measure the depth and a measuring rod 1 that moves in conjunction with the end of the micrometer screw. The measuring rod 1 and the measuring rod 2 are used to measure the inner diameter of the pipe fitting.

[0005] Preferably, the adjustment part includes a fixed sleeve fixed to one end of the ruler frame, a micro-cylinder threaded to the outer side of the fixed sleeve, and a fine-tuning ratchet installed inside one end of the micro-cylinder.

[0006] Preferably, the top of the ruler frame is provided with a storage groove, and a second measuring rod is rotatably connected inside the storage groove. A tightening nut is threadedly connected to the outside of the second measuring rod.

[0007] Preferably, the bottom of the connecting base is fixedly connected to an inverted T-shaped lifting column, the inside of the measuring wall is provided with a lifting hole that cooperates with the lifting column, and a spring is sleeved on the outside of the lifting column and inside the lifting hole.

[0008] Preferably, the bottom of the measuring frame is symmetrically fixed with two limiting rods about the lifting column, and the top of the measuring wall is provided with a limiting hole that cooperates with the limiting rods.

[0009] Preferably, the switching part further includes a limiting rod fixed to one end of the sliding ring, and the inside of the ruler frame is provided with a limiting cavity that cooperates with the limiting rod. A spring is sleeved on the outside of the limiting rod and inside the limiting cavity to drive the limiting rod to make the sliding ring fit against the ruler frame.

[0010] Preferably, the sliding ring is slidably connected to the micrometer screw, a supporting sleeve is fixedly connected to one side of the sliding ring, a rotating ring is rotatably connected to the outside of the supporting sleeve, a receiving hole is opened on one side of the rotating ring, a spring is fixedly connected inside the receiving hole, a limiting steel ball is fixedly connected to one end of the spring, and a groove that cooperates with the limiting steel ball is opened on one side of the sliding ring.

[0011] Preferably, a clamping nut is threaded onto the outer side of the support sleeve, and a second spring is sleeved on the outer side of the support sleeve between the clamping nut and the rotating ring. A reference plate is fixed to one end of the support sleeve, and an inverted L-shaped limiting ring is fixed to the end of the support sleeve. A limiting stop is slidably connected to the middle of the limiting ring, and a baffle is fixed to the outer side of the limiting stop. A third spring is sleeved on the outer side of the limiting stop between the baffle and the limiting ring. An operating hole is provided on the reference plate at the position corresponding to the limiting stop.

[0012] A method of using the multi-mode micrometer described above includes the following steps: When measuring length, the object to be measured is placed between the micrometer screw and the anvil. The micrometer screw is adjusted to move forward by the adjustment part. After the micrometer screw contacts the object to be measured, the value is read by the scale and then calculated. When measuring depth, rotate and adjust the measuring wall to one side of the connecting base, and contact the end of the reference plate with the measuring material. Adjust the micrometer screw to insert into the depth to be measured. Calculate the depth based on the extension length of the micrometer screw after the end of the micrometer screw contacts the bottom of the measuring plate. When measuring the inner diameter of a pipe fitting, adjust the second and first measuring rods to the top, and link the first measuring rod with the end of the micrometer screw to adjust the distance between the first and second measuring rods. When the second and first measuring rods are in contact with the inner wall of the pipe fitting, read the corresponding data and calculate.

[0013] Compared with the prior art, the beneficial effects of this invention are as follows: The object to be measured is placed between the micrometer screw and the anvil. The micrometer screw is adjusted forward by the adjustment unit. After contacting the object, the value is read using the scale for calculation, thus fulfilling conventional length measurement needs. The measuring wall is rotated and adjusted to a suitable position so that the reference plate contacts the end of the material being measured. The insertion depth of the micrometer screw is adjusted, and the depth is calculated based on its elongation, satisfying depth measurement scenarios. The second and first diameter measuring rods are adjusted upwards and linked together. The distance between them is adjusted. When they contact the inner wall of the pipe fitting, data is read to calculate the inner diameter, enabling accurate measurement of the pipe fitting's inner diameter. This invention achieves functional integration in a single instrument, satisfying the measurement needs of multiple dimensions under complex working conditions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the lifting hole of the present invention; Figure 3 This is a schematic diagram of the rotating ring structure of the present invention; Figure 4 This is a schematic diagram of the sliding ring structure of the present invention; Figure 5 This is a schematic diagram of the structure used in the present invention for measuring length; Figure 6 This is a schematic diagram of the structure used in the present invention for measuring depth; Figure 7 This is a schematic diagram of the structure used to measure the inner diameter according to the present invention.

[0015] In the diagram: 1. Ruler frame; 2. Connecting base; 3. Measuring wall; 4. Measuring anvil; 5. Fixing sleeve; 6. Micrometer cylinder; 7. Micrometer screw; 8. Limiting rod; 9. Lifting hole; 10. Lifting column; 11. Spring; 12. Diameter measuring rod one; 13. Tightening nut; 14. Storage groove; 15. Limiting cavity; 16. Fine-tuning ratchet; 17. Limiting insertion hole; 18. Sliding ring; 19. Rotating ring; 20. Receiving hole; 21. Spring one; 22. Limiting steel ball; 23. Compression nut; 24. Diameter measuring rod two; 25. Spring two; 26. Supporting sliding sleeve; 27. Reference plate; 28. Operating hole; 29. ​​Limiting stop; 30. Spring three; 31. Spring four; 32. Limiting rod. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figure 1 , 2 As shown in Figures 3, 4, 5, 6, and 7, the present invention provides a technical solution: a multi-mode micrometer screw gauge, comprising: a frame 1, a micrometer screw 7 with graduations is provided in the middle of the frame 1, an adjustment part for driving the micrometer screw 7 is installed at one end of the frame 1, and a second measuring rod 24 is provided for rotating the frame 1; a connecting base 2 fixed to the bottom of the frame 1, a measuring wall 3 is provided at the bottom of the connecting base 2, and a measuring anvil 4 corresponding to the micrometer screw 7 is fixed to one side of the inner wall of the measuring wall 3; a switching part located at one end of the frame 1, the switching part including a sliding ring 18 transversely disposed at the end of the frame 1, a reference plate 27 for conforming to the end of the workpiece for measuring depth and a first measuring rod 12 that moves in coordination with the end of the micrometer screw 7, the first measuring rod 12 and the second measuring rod 24 being used to measure the inner diameter of the pipe fitting.

[0018] It should be noted that in this embodiment, the measuring arm is threaded with a bolt in the middle of the ruler frame 1, which can lock the measuring arm in a specific position. When measuring length, the object to be measured is placed between the micrometer screw 7 and the anvil 4. The micrometer screw 7 is adjusted to move forward by the adjustment part. When the micrometer screw 7 contacts the object to be measured, the value is read by the scale and then calculated. When measuring depth, the measuring wall 3 is rotated and adjusted to one side of the connecting base 2. The end of the reference plate 27 is in contact with the measuring material. The micrometer screw 7 is inserted into the depth to be measured by adjusting it. When the end of the micrometer screw 7 contacts the bottom of the measuring plate, the elongation length of the micrometer screw 7 is calculated. When measuring the inner diameter of the pipe, the second measuring rod 24 and the first measuring rod 12 are adjusted to the top. The end of the first measuring rod 12 is linked with the end of the micrometer screw 7 to adjust the distance between the first measuring rod 12 and the second measuring rod 24. When the second measuring rod 24 and the first measuring rod 12 contact the inner wall of the pipe, the corresponding data is read and calculated.

[0019] In one embodiment, the adjustment part includes a fixed sleeve 5 fixed to one end of the ruler frame 1, a micro-cylinder 6 threadedly connected to the outer side of the fixed sleeve 5, and a fine-tuning ratchet 16 installed inside one end of the micro-cylinder 6.

[0020] It should be noted that in this embodiment, the fixed sleeve 5 is fixed on the ruler as a static reference, and its interior is machined with precision internal threads; the micrometer sleeve is fitted outside the fixed sleeve, one end of which is connected to the cone of the micrometer screw through a tapered hole, and the other end is provided with a scale; the micrometer screw passes through it, and its threaded part precisely meshes with the internal thread of the fixed sleeve. When the micrometer sleeve is rotated, its motion is converted into the axial linear motion of the micrometer screw through the threaded pair, while the micrometer screw itself is restricted from rotating by the guide groove, thereby accurately converting the circumferential rotation of the micrometer sleeve into the axial displacement of the micrometer screw, realizing high-precision measurement at the micrometer level; the center of the top of the micrometer screw is machined with internal threads, and the shaft at the end of the fine-tuning ratchet 16 is equipped with corresponding external threads, and the two are threadedly connected. In addition, an axially grooved elastic joint is pressed between the micrometer drum and the micrometer screw, causing it to expand and tightly couple the three together, so that they can rotate synchronously to transmit torque during normal measurement. When the measurement pressure reaches the preset value, the inclined meshing structure inside the ratchet will slip and make a "click" sound, cutting off the power transmission, thereby stabilizing the measurement force and protecting the precision threaded pair.

[0021] In one embodiment, a lifting column 10 with an inverted T-shaped structure is fixedly connected to the bottom of the connecting base 2, a lifting hole 9 that cooperates with the lifting column 10 is opened inside the measuring wall 3, a spring 11 is sleeved on the outside of the lifting column 10 and inside the lifting hole 9, two limiting rods 8 are symmetrically fixed to the bottom of the ruler frame 1 about the lifting column 10, and a limiting hole 17 that cooperates with the limiting rods 8 is opened on the top of the measuring wall 3.

[0022] It should be noted that, in this embodiment, when adjusting the measuring wall 3, the measuring wall 3 is pulled downwards, causing the lifting hole 9 to compress the spring 11 downwards. When the limiting rod 8 separates from the limiting hole 17, the measuring wall 3 is rotated to adjust the measuring wall 3 and the connecting base 2. When the measuring wall 3 is perpendicular to the end of the connecting base 2, the constraint on the measuring wall 3 is released. Under the elastic force of the spring 11, the measuring wall 3 contacts the bottom of the connecting base 2 upwards. At this time, the limiting rod 8 is stuck on both sides of the measuring wall 3 to limit the angle of the measuring wall 3. When resetting, the measuring wall 3 is pulled downwards and then rotated to insert the limiting rod 8 into the limiting hole 17, thereby reconnecting the connecting base 2 and the measuring wall 3.

[0023] In one embodiment, the top of the ruler frame 1 is provided with a storage groove 14, and a measuring rod 24 is rotatably connected inside the storage groove 14. A tightening nut 13 is threadedly connected to the outside of the measuring rod 24.

[0024] It should be noted that, in this embodiment, when vertically adjusting the second diameter measuring rod 24, one end of the second diameter measuring rod 24 is flipped upwards to make the second diameter measuring rod 24 vertical, and the tightening nut 13 is screwed downwards so that the tightening nut 13 is pressed into contact with the top of the ruler frame 1, thereby locking the second diameter measuring rod 24 into a vertical state.

[0025] In one embodiment, the switching unit further includes a limiting rod 32 fixed to one end of the sliding ring 18. A limiting cavity 15, which cooperates with the limiting rod 32, is provided inside the ruler frame 1. A spring 31 is sleeved on the outside of the limiting rod 32 and inside the limiting cavity 15, used to drive the limiting rod 32 to bring the sliding ring 18 into contact with the ruler frame 1. The sliding ring 18 is slidably connected to the micrometer screw 7. A supporting sleeve 26 is fixed to one side of the sliding ring 18. A rotating ring 19 is rotatably connected to the outside of the supporting sleeve 26. A receiving hole 20 is provided on one side of the rotating ring 19. A spring 21 is fixed inside the receiving hole 20. A limiting steel ball 2 is fixed to one end of the spring 21. 2. A groove is provided on one side of the sliding ring 18 to cooperate with the limiting steel ball 22. A clamping nut 23 is threadedly connected to the outside of the supporting sliding sleeve 26. A spring 25 is sleeved on the outside of the supporting sliding sleeve 26 and between the clamping nut 23 and the rotating ring 19. The reference plate 27 is fixed to one end of the supporting sliding sleeve 26. An inverted L-shaped limiting ring is fixed to the end of the supporting sliding sleeve 26. A limiting stop bar 29 is slidably connected to the middle of the limiting ring. A baffle is fixed to the outside of the limiting stop bar 29. A spring 30 is sleeved on the outside of the limiting stop bar 29 and between the baffle and the limiting ring. An operating hole 28 is provided on the reference plate 27 at the position corresponding to the limiting stop bar 29.

[0026] It should be noted that, in this embodiment, when measuring the inner diameter of the pipe fitting, the rotating ring 19 is rotated on one side of the sliding ring 18. When the limiting steel ball 22 is engaged in the groove on one side of the sliding ring 18 under the elastic force of the spring 21, the measuring rod 12 is in a vertically upward position. At this time, the clamping nut 23 is rotated, and under the action of the outer thread of the supporting sleeve 26, the clamping nut 23 compresses the spring 25 to compress the rotating ring 19, thereby squeezing the rotating ring 19 against one side of the sliding ring 18. Then, the micrometer screw 7 is adjusted to support... Inside the support sleeve 26, the rotating ring 19 is inserted downward into the support sleeve 26, so that the support sleeve 26 stops at the end of the micrometer screw 7. At this time, the extension of the micrometer screw 7 is adjusted. The micrometer screw 7 drives the support sleeve 26 to move forward through the limit stop 29. The support sleeve 26 drives the sliding ring 18 to move forward. The sliding ring 18 drives the limit rod 32 to slide in the limit cavity 15 and compress the spring 31. When the measuring rod 12 and the measuring rod 24 contact the inner wall of the pipe, the diameter of the inner wall of the pipe is calculated by the extension length of the micrometer screw 7.

[0027] In the description of this invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting this invention.

[0028] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-mode micrometer, characterized in that: include: A ruler frame (1) is provided with a graduated micrometer screw (7) in the middle part of the ruler frame (1), and an adjustment part for driving the micrometer screw (7) to move is installed at one end of the ruler frame (1). A diameter measuring rod (24) is provided for the rotation of the ruler frame (1). A connecting base (2) is fixed to the bottom of the ruler frame (1). A measuring wall (3) is provided at the bottom of the connecting base (2). A measuring anvil (4) corresponding to the micrometer screw (7) is fixed to one side of the inner wall of the measuring wall (3). The switching part is located at one end of the ruler frame (1). The switching part includes a sliding ring (18) that is laterally disposed at the end of the ruler frame (1). One end of the sliding ring (18) is provided with a reference plate (27) for fitting with the end of the workpiece to measure the depth and a measuring rod (12) that moves in conjunction with the end of the micrometer screw (7). The measuring rod (12) and the measuring rod (24) are used to measure the inner diameter of the pipe fitting.

2. The multi-mode micrometer according to claim 1, characterized in that: The adjustment part includes a fixed sleeve (5) fixed to one end of the ruler (1), and a micro cylinder (6) is threadedly connected to the outside of the fixed sleeve (5). A fine-tuning ratchet (16) is installed inside one end of the micro cylinder (6).

3. The multi-mode micrometer according to claim 1, characterized in that: The top of the ruler frame (1) is provided with a storage groove (14), and a measuring rod (24) is rotatably connected inside the storage groove (14). A tightening nut (13) is threadedly connected to the outside of the measuring rod (24).

4. A multi-mode micrometer according to claim 1, characterized in that: The bottom of the connecting base (2) is fixed with an inverted T-shaped lifting column (10), and the measuring wall (3) has a lifting hole (9) that cooperates with the lifting column (10). A spring (11) is sleeved on the outside of the lifting column (10) and inside the lifting hole (9).

5. A multi-mode micrometer according to claim 1, characterized in that: The bottom of the ruler frame (1) is symmetrically fixed with two limiting rods (8) about the lifting column (10), and the top of the measuring wall (3) is provided with a limiting hole (17) that cooperates with the limiting rods (8).

6. A multi-mode micrometer according to claim 1, characterized in that: The switching part also includes a limiting rod (32) fixed to one end of the sliding ring (18). The inside of the ruler frame (1) is provided with a limiting cavity (15) that cooperates with the limiting rod (32). A spring (31) is sleeved on the outside of the limiting rod (32) and inside the limiting cavity (15) to drive the limiting rod (32) to drive the sliding ring (18) to fit against the ruler frame (1).

7. A multi-mode micrometer according to claim 1, characterized in that: The sliding ring (18) is slidably connected to the micrometer screw (7). A support sleeve (26) is fixedly connected to one side of the sliding ring (18). A rotating ring (19) is rotatably connected to the outside of the support sleeve (26). A receiving hole (20) is opened on one side of the rotating ring (19). A spring (21) is fixedly connected inside the receiving hole (20). A limiting steel ball (22) is fixedly connected to one end of the spring (21). A groove that cooperates with the limiting steel ball (22) is opened on one side of the sliding ring (18).

8. A multi-mode micrometer according to claim 1, characterized in that: The support sleeve (26) is threaded with a clamping nut (23) on the outside. A spring (25) is sleeved on the outside of the support sleeve (26) between the clamping nut (23) and the rotating ring (19). A reference plate (27) is fixed to one end of the support sleeve (26). A limiting ring with an inverted L-shaped structure is fixed to the end of the support sleeve (26). A limiting rod (29) is slidably connected to the middle of the limiting ring. A baffle is fixed to the outside of the limiting rod (29). A spring (30) is sleeved on the outside of the limiting rod (29) between the baffle and the limiting ring. An operating hole (28) is opened on the reference plate (27) at the position corresponding to the limiting rod (29).

9. A method of using a multi-mode micrometer based on any one of 1-8, characterized in that: Includes the following steps: When measuring the length, the object to be measured is placed between the micrometer screw (7) and the anvil (4). The micrometer screw (7) is adjusted to move forward by the adjustment part. After the micrometer screw (7) contacts the object to be measured, the value is read by the scale and then calculated. When measuring depth, the measuring wall (3) is rotated and adjusted to one side of the connecting base (2), and the reference plate (27) is brought into contact with the end of the measuring material. The micrometer screw (7) is inserted into the depth to be measured by adjusting the micrometer screw (7). The elongation length of the micrometer screw (7) is calculated after the end of the micrometer screw (7) contacts the bottom of the measurement. When measuring the inner diameter of the pipe fitting, adjust the second measuring rod (24) and the first measuring rod (12) to the top, and link the first measuring rod (12) with the end of the micrometer screw (7) to adjust the distance between the first measuring rod (12) and the second measuring rod (24). When the second measuring rod (24) and the first measuring rod (12) come into contact with the inner wall of the pipe fitting, read the corresponding data and calculate.

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