Measuring mechanism

Abstract

The utility model aims to provide a measuring mechanism which comprises a shell and a measuring assembly, the shell is of an integrally formed structure, guide holes are coaxially formed in the two ends of the shell, the measuring assembly comprises a measuring rod, a clamping block and a limiting column, the measuring rod penetrates through the two guide holes in a matched mode, the clamping block is arranged on the measuring rod, an anti-rotation hole is further formed in the shell, and the limiting column is arranged in the anti-rotation hole. The anti-rotation hole is formed in the axis direction of the guide hole, the limiting column is arranged on the clamping block, the end, away from the clamping block, of the limiting column is in sliding connection with the anti-rotation hole in a matched mode, and when the measuring rod slides in the axis direction of the guide hole under the action of external force, the clamping block drives the limiting column to slide in the anti-rotation hole, so that the measuring rod is prevented from rotating. Therefore, the measurement precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of precision measuring equipment, in particular to a measuring mechanism. BACKGROUND

[0002] The measuring mechanism plays a key role in many fields and is the core part of accurate measurement of various physical quantities. Its application range is wide, covering material performance detection, industrial production quality control and many other aspects. As a key tool for quality detection, the measuring mechanism ensures that various parameters in the production process meet the standard requirements, effectively avoiding resource waste and economic losses caused by unqualified product quality.

[0003] However, the existing measuring mechanism has the following deficiencies in actual use: the existing measuring mechanism is usually connected by at least two parts, making the assembly process cumbersome and prone to misalignment of the two end guide holes during assembly. Since the guide hole is a key component that ensures the movement accuracy of the measuring rod in the measuring mechanism, the misalignment of the guide hole will directly affect the movement trajectory of the measuring rod, thereby causing the measuring accuracy to decrease. In addition, during the measurement process, the measuring rod in the measuring mechanism may rotate due to external force, causing the measuring rod to deviate when it contacts the measured material. Thus, the measuring accuracy is affected. Therefore, the measuring mechanism of the present application is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the deficiencies in the prior art, providing a measuring mechanism which can avoid misalignment or misalignment of the guide hole during assembly and prevent the measuring rod from rotating to improve the measuring accuracy.

[0005] The utility model aims at overcoming the deficiencies in the prior art, providing a measuring mechanism which can avoid misalignment or misalignment of the guide hole during assembly and prevent the measuring rod from rotating to improve the measuring accuracy.

[0006] A measuring mechanism comprises:

[0007] A housing is an integral structure, and guide holes are coaxially provided at both ends of the housing; and

[0008] A measuring assembly comprises a measuring rod, a clamping block and a limiting column. The measuring rod is adaptively provided in the two guide holes. The clamping block is provided on the measuring rod. An anti-rotation hole is also provided on the housing and is coaxially provided along the guide hole. The limiting column is provided on the clamping block, and the end of the limiting column away from the clamping block is adaptively connected with the anti-rotation hole. When the measuring rod slides along the axis of the guide hole under external force, the clamping block drives the limiting column to slide in the anti-rotation hole, so as to prevent the measuring rod from rotating.

[0009] Optionally, the diameter of the measuring rod is consistent with the diameter of the guide hole.

[0010] Optionally, the measuring assembly comprises a plurality of buffer rings, each of which is sleeved on the measuring rod and located on the two sides of the clamping block.

[0011] Optionally, the measuring assembly further comprises a locking column, the clamping block is provided with a through hole, and the measuring rod is provided with a circular hole, and the locking column is inserted into the through hole and the circular hole.

[0012] Optionally, the diameter of the through hole is consistent with the diameter of the circular hole.

[0013] Optionally, the clamping block is provided with a cylindrical table, and the limiting column is arranged on the cylindrical table.

[0014] Optionally, the diameter of the limiting column is consistent with the hole width of the anti-rotation hole.

[0015] Optionally, the measuring assembly further comprises an elastic member, and the two ends of the elastic member are connected with the shell and the cylindrical table respectively.

[0016] Optionally, the measuring assembly further comprises a supporting tube, the supporting tube is sleeved on the measuring rod, and one end of the supporting tube is connected with the shell.

[0017] Optionally, the inner diameter of the supporting tube is greater than the diameter of the measuring rod.

[0018] Compared with the prior art, the utility model has at least the following advantages:

[0019] The measuring mechanism of the utility model avoids the misalignment of the guide holes at both ends of the shell during assembly, reduces the assembly process and improves production efficiency. Meanwhile, the limiting column is driven to slide in the anti-rotation hole while the measuring rod is sliding, so as to avoid the rotation of the measuring rod and affect the test precision. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as the limitation to the scope, and for the ordinary skilled in the art, other related drawings can be obtained without the creative labor on the premise of the drawings.

[0021] Figure 1 It is the structural schematic view of the measuring mechanism of an embodiment of the utility model;

[0022] Figure 2It is the front view structural schematic drawing of the measuring mechanism of an embodiment of the utility model;

[0023] Figure 3 It is Figure 2 It is the partial enlarged structure schematic drawing of A in the middle;

[0024] Figure 4 It is the sectional structure schematic drawing of the measuring mechanism of an embodiment of the utility model;

[0025] Figure 5 It is the structural schematic drawing of the installation position of the inductive plate of an embodiment of the utility model;

[0026] Figure 6 It is the partial structure schematic drawing of the installation position of the measuring plate of an embodiment of the utility model;

[0027] Figure 7 It is the structural schematic drawing of the shell of an embodiment of the utility model;

[0028] Figure 8 It is the structural schematic drawing of the clamping block of an embodiment of the utility model.

[0029] Explanation of reference signs:

[0030] 1, measuring mechanism, 10, shell, 11, guide hole, 12, anti-rotation hole, 13, square hole, 20, measuring assembly, 21, measuring rod, 211, round hole, 212, first end, 22, clamping block, 221, perforation, 222, cylindrical platform, 23, limiting column, 24, measuring plate, 25, inductive plate, 30, buffer ring, 40, locking column, 50, elastic piece, 60, support pipe. DETAILED DESCRIPTION

[0031] In order to facilitate understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the utility model are shown in the drawings.

[0032] In the description of the embodiments of the utility model, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0035] like Figures 1 to 6 As shown, in one embodiment, a measuring mechanism 1 includes a housing 10 and a measuring component 20. The housing 10 is an integrally formed structure, and guide holes 11 are coaxially formed at both ends of the housing 10. The measuring component 20 includes a measuring rod 21, a clamping block 22, and a limiting post 23. The measuring rod 21 is adapted to pass through the two guide holes 11, and the clamping block 22 is disposed on the measuring rod 21. An anti-rotation hole 12 is also formed on the housing 10. The anti-rotation hole 12 is formed along the axial direction of the guide holes 11. The limiting post 23 is disposed on the clamping block 22, and the end of the limiting post 23 away from the clamping block 22 is adapted to slide in contact with the anti-rotation hole 12. When the measuring rod 21 is subjected to external force and slides along the axial direction of the guide holes 11, the clamping block 22 causes the limiting post 23 to slide in the anti-rotation hole 12, so as to prevent the measuring rod 21 from rotating around the axis of the guide holes 11.

[0036] It should be noted that the housing 10 is a one-piece molded structure, and a square hole 13 is provided on the housing 10. Two guide holes 11 are located at opposite ends of the housing 10, and both guide holes 11 communicate with the square hole 13, and the two guide holes 11 are coaxially arranged. In this way, compared with the housing 10 structure composed of multiple parts, the two guide holes 11 can reduce the assembly process, and can avoid the two guide holes 11 not being coaxially arranged during the assembly process, which would directly affect the movement trajectory of the measuring rod 21 and thus reduce the measurement accuracy. Furthermore, the diameter of the measuring rod 21 is the same as the diameter of the guide hole 11, so that the measuring rod 21 can be coaxially fitted into the two guide holes 11.

[0037] It should be noted that the clamping block 22 is arranged on the measuring rod 21, and the clamping block 22 is located in the square hole 13, so that when the measuring rod 21 slides relative to the guide hole 11 under the action of an external force, the measuring rod 21 can drive the clamping block 22 to move in the square hole 13. Further, the housing 10 is also provided with an anti-rotation hole 12, which is located on the side of the housing 10 adjacent to the guide hole 11, and the anti-rotation hole 12 is in communication with the square hole 13. The anti-rotation hole 12 is arranged along the axial direction of the guide hole 11, for example, the anti-rotation hole 12 is a waist-shaped hole structure, and the two ends of the anti-rotation hole 12 are respectively directed to the guide hole 11 at the two ends of the housing 10. Further, the limiting column 23 is arranged on the side of the clamping block 22 facing the anti-rotation hole 12, and the end of the limiting column 23 away from the clamping block 22 extends into the anti-rotation hole 12. It should be noted that the diameter of the limiting column 23 is consistent with the hole width of the anti-rotation hole 12, so that when the measuring rod 21 drives the clamping block 22 to slide relative to the housing 10, the clamping block 22 drives the limiting column 23 to slide in the anti-rotation hole 12 along the axial direction of the guide hole 11. In this way, the measuring rod 21 cannot rotate around the center of the guide hole 11. Thus, the measurement accuracy is improved.

[0038] As shown in Figures 1 to 2 , Figures 4 to 6 , in an embodiment, the measurement assembly 20 includes a plurality of buffer rings 30, each buffer ring 30 is sleeved on the measuring rod 21, and each buffer ring 30 is located on the two sides of the clamping block 22.

[0039] It should be noted that the buffer ring 30 is made of a material with elasticity, for example, the buffer ring 30 is made of rubber. Each buffer ring 30 is located on the two sides of the clamping block 22, so that when the measuring rod 21 drives the clamping block 22 to slide in the square hole 13, the two ends of the clamping block 22 respectively collide with the two inner side walls of the square hole 13 to generate vibration, thereby affecting the measurement accuracy of the measuring rod 21.

[0040] As shown in Figures 2 to 6 , in an embodiment, the measurement assembly 20 further includes a locking column 40, the clamping block 22 is provided with a through hole 221, the measuring rod 21 is provided with a circular hole 211, and the locking column 40 penetrates the through hole 221 and the circular hole 211.

[0041] It should be noted that the clamping block 22 is provided with a through hole 221, the measuring rod 21 is provided with a circular hole 211, and the diameter of the through hole 221 is consistent with the diameter of the circular hole 211. For example, the circular hole 211 is a threaded hole structure, and the locking column 40 is a screw structure. When the clamping block 22 is arranged on the measuring rod 21, and the through hole 221 and the circular hole 211 are coaxially aligned, the locking column 40 can be screwed through the through hole 221 and the circular hole 211. In this way, the clamping block 22 is fixed on the measuring rod 21.

[0042] As shown in Figures 1 to 6 , Figure 8As shown, in an embodiment, the clamping block 22 is provided with a cylindrical platform 222, and the limiting column 23 is arranged on the cylindrical platform 222.

[0043] It should be noted that the side of the clamping block 22 close to the anti-rotation hole 12 is provided with a cylindrical platform 222, and a circular groove is arranged on the cylindrical platform 222, and one end of the limiting column 23 is inserted into the circular groove, so that the other end of the limiting column 23 away from the cylindrical platform 222 can extend into the anti-rotation hole 12.

[0044] As shown in the figure, Figures 1 to 6 As shown, in an embodiment, the measuring assembly 20 further comprises an elastic member 50, and two ends of the elastic member 50 are connected with the shell 10 and the cylindrical platform 222 respectively.

[0045] It should be noted that the elastic member 50 is a spring structure, for example, the elastic member 50 is a tension spring, and two ends of the elastic member 50 are connected with the shell 10 and the cylindrical platform 222 respectively by hooking. In order to facilitate description, two ends of the measuring rod 21 are defined as a first end 212 and a second end, and the first end 212 is used to abut against the test material. The square hole 13 is provided with a hook on the inner side wall close to the first end 212 of the measuring rod 21, and two ends of the elastic member 50 are connected with the hook and the cylindrical platform 222 respectively by hooking. In this way, when the first end 212 abuts against the test material, the measuring rod 21 drives the clamping block 22 to slide towards the second end, and at the same time, the clamping block 22 drives the limiting column 23 to pull the tension spring. When the first end 212 is away from the test material, the tension spring takes the hook as a fulcrum to pull the cylindrical platform 222 close to the hook, so as to reset the clamping block 22 relative to the measuring rod 21. In an embodiment, for example, the elastic member 50 is a spring, a sliding groove is arranged on the inner side wall of the square hole 13 close to the anti-rotation hole 12, and the sliding groove is located on the side of the limiting column 23 facing the second end. The spring is located in the sliding groove, and two ends of the spring abut against the inner side wall of the square hole 13 and the limiting column 23 respectively. In this way, when the first end 212 abuts against the test material, the measuring rod 21 pushes the clamping block 22 to slide towards the second end, and at the same time, the clamping block 22 pushes the limiting column 23 to extrude the spring. When the first end 212 is away from the test material, the spring pushes the limiting column 23 to slide towards the first end 212, so as to reset the clamping block 22 relative to the measuring rod 21.

[0046] As shown in the figure, Figures 1 to 2 , Figures 4 to 7 As shown, in an embodiment, the measuring assembly 20 further comprises a support tube 60, the support tube 60 is sleeved on the measuring rod 21, and one end of the support tube 60 is connected with the shell 10.

[0047] It needs to be explained that the shell 10 is provided with a slot extending inwardly from the outer side wall of the shell 10. The slot is located on the side of the shell 10 close to the first end 212, the axis of the slot coincides with the axis of the guide hole 11, and the diameter of the slot is greater than the diameter of the guide hole 11. The inner bottom wall of the slot is in communication with the guide hole 11, so that the measuring rod 21 can extend out of the end surface of the shell 10 through the guide hole 11. The inner side wall of the slot is provided with a thread. Further, the support pipe 60 is sleeved on the measuring rod 21, and one end of the support pipe 60 is screwed with the slot, so that the support pipe 60 is fixed on the shell 10. Further, the inner diameter of the support pipe 60 is greater than the diameter of the measuring rod 21, so that there is a gap between the inner side wall of the support pipe 60 and the outer side of the measuring rod 21, so as to avoid the measuring rod 21 from being offset due to scratching the support pipe 60 when the measuring rod 21 slides relative to the shell 10, thereby affecting the test precision. Further, the end of the support pipe 60 away from the shell 10 is provided with a ring groove, so as to facilitate the clamping of the support pipe 60 and the shell of the measuring instrument.

[0048] As shown in Figure 2 , Figures 4 to 6 In an embodiment, the measuring assembly 20 further comprises a measuring plate 24 and a sensing plate 25. The measuring plate 24 is arranged on the clamping block 22, and the sensing plate 25 is arranged on the shell 10. Both the measuring plate 24 and the sensing plate 25 are located on the same side of the measuring rod 21, and the measuring plate 24 and the sensing plate 25 are close to each other. Further, the length of the measuring plate 24 is greater than the length of the sensing plate 25. When the clamping block 22 drives the measuring plate 24 to slide relative to the shell 10, the sensing plate 25 can sense the position change of the measuring plate 24. The sensing plate 25 is electrically connected with the circuit board of the measuring instrument, so that the sensing plate 25 can transmit data to the circuit board of the measuring instrument. For example, the measuring plate 24 is provided with a plurality of Hall sensing units, and the sensing plate 25 is an iron plate. For example, the measuring instrument is a displacement sensor.

[0049] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A measuring mechanism, characterized by, The utility model relates to a kind of measuring device, including: Shell, the shell is integrally formed structure, and the both ends of the shell are coaxially provided with guide hole;And Measuring assembly, the measuring assembly includes measuring rod, clamp block and limiting column, the measuring rod is adaptively threaded in two The guide hole, the clamp block is arranged on the measuring rod, the shell is also provided with anti-rotation hole, the anti-rotation hole is along The axial direction of the guide hole is opened, the limiting column is arranged on the clamp block, and the end of the limiting column away from the clamp block With the anti-rotation hole adaptively sliding connection, when the measuring rod is slid along the axial direction of the guide hole by external force, so that The clamp block drives the limiting column to slide in the anti-rotation hole, to avoid the rotation of the measuring rod.

2. The measuring mechanism according to claim 1, characterized in that The diameter of the measuring rod is consistent with the diameter of the guide hole.

3. The measuring mechanism of claim 1, wherein, The measuring assembly includes several buffer rings, each buffer ring is sleeved on the measuring rod, and each buffer ring is located on the both sides of the clamp block.

4. The measuring mechanism according to claim 3, characterized in that The measuring assembly further includes lock column, the clamp block is provided with perforation, the measuring rod is provided with round hole, and the lock column is threaded on the perforation and the round hole.

5. The measuring mechanism according to claim 4, characterized in that The diameter of the perforation and the round hole is consistent.

6. The measuring mechanism of claim 4, wherein, The clamp block is provided with cylindrical table, and the limiting column is arranged on the cylindrical table.

7. The measuring mechanism of claim 6, wherein, The diameter of the limiting column is consistent with the hole width of the anti-rotation hole.

8. The measuring mechanism of claim 6, wherein, The measuring assembly further includes elastic member, and the both ends of the elastic member are connected with the shell and the cylindrical table respectively.

9. The measuring mechanism of claim 8, wherein, The measuring assembly further includes support tube, the support tube is sleeved on the measuring rod, and one end of the support tube is connected with the shell.

10. The measuring mechanism of claim 9, wherein, The inner diameter of the support tube is greater than the diameter of the measuring rod.

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