Inner cavity measuring assembly

Abstract

The utility model relates to the technical field of measuring tools, and provides an inner cavity measuring assembly which comprises a reference seat, a connecting rod, a measuring seat, a measuring movable block, a locking part, a reference column and a connecting pin, the reference seat, the connecting rod and the measuring seat are sequentially in threaded connection, the measuring movable block is assembled on the outer side face of the measuring seat, and the reference column is coaxially assembled on the inner side of one end of the measuring seat. The reference column is fixedly connected with the measuring movable block through the connecting pin, and when the reference column moves, the measuring movable block can be linked to move along the axis of the measuring seat, and the reference column and the measuring movable block are locked and fixed through the locking part. According to the inner cavity measuring assembly, the structure is simple, size reading is visual, the precision can reach 0.001 mm, in the measuring process, the mode that two axes need to be moved at the same time in the prior art is changed into the mode that only one axis needs to be moved, the measuring efficiency is remarkably improved, and the requirement for the operating skill of measuring operators is remarkably reduced.

Description

Technical Field

[0001] This application relates to the field of measuring instrument technology, and in particular to an internal cavity measuring component. Background Technology

[0002] In the field of modern machining, the machining and measurement of parts with complex internal cavities is a crucial step. Currently, common methods for measuring internal cavity dimensions include using tools such as inside micrometers, inside gauges, inside measuring rods, and calipers. While these traditional measurement methods can accomplish the measurement task to a certain extent, they have many inconveniences and drawbacks when measuring the dimensions of internal cavity elements.

[0003] First, these methods demand high levels of user skill, requiring operators with extensive experience and proficiency to perform accurate measurements. Second, they cannot comprehensively cover all measurement elements of a part, resulting in a limited measurement range and difficulty in meeting the comprehensive inspection needs of parts with complex internal cavity structures. Furthermore, low measurement efficiency is a major problem with existing technologies, especially when measuring dimensions in multiple directions. Traditional two-point measurement methods are time-consuming and inefficient, and due to variations in human skill, inaccurate measurements often occur, leading to parts exceeding tolerances and being scrapped, causing unnecessary waste and quality incidents. Particularly when measuring internal cavity dimensions, the minimum dimension needs to be measured in both the XZ and YZ planes; only by simultaneously finding the minimum dimensions in both directions can the actual dimension be obtained. However, existing measurement methods perform poorly in this process. For example, calipers and internal measuring dial indicators are not accurate enough when measuring two planes of an internal cavity, resulting in deviations between measured dimensions and actual values, failing to meet the requirements of high-precision measurement. This inaccuracy not only affects the quality control of parts but may also lead to safety hazards during equipment operation.

[0004] In summary, existing technologies have many shortcomings in the dimensional measurement of parts with complex internal structures. There is an urgent need for a new measurement method or device that can improve measurement efficiency, reduce operational skill requirements, enhance measurement accuracy, and comprehensively cover measurement elements, so as to meet the demands of modern machining for high-precision and high-efficiency measurement. Utility Model Content

[0005] In view of this, in order to overcome the shortcomings of the prior art, this application aims to provide an internal cavity measurement component.

[0006] This application provides an internal cavity measurement assembly, which includes a reference base, a connecting rod, a measuring base, a measuring movable block, a locking part, a reference post, and a connecting pin. The reference base, connecting rod, and measuring base are sequentially threaded together. The measuring movable block is mounted on the outer side of the measuring base, and the reference post is coaxially mounted on the inner side of one end of the measuring base. The reference post is fixedly connected to the measuring movable block through the connecting pin. When the reference post moves, it can move the measuring movable block along the axis of the measuring base, and the locking part locks and fixes the reference post and the measuring movable block.

[0007] Optionally, in the cavity measurement assembly of this application, the reference base includes an integrally connected reference base connecting part and a reference base support part. The outer end of the reference base connecting part is provided with a first threaded hole, and two lower reference measuring columns are symmetrically arranged at the bottom of the reference base support part.

[0008] Optionally, in the internal cavity measuring assembly of this application, the connecting rod consists of a connecting rod body and a first threaded connection portion integrally connected to one end of the connecting rod body, and a second threaded hole is provided at the other end of the connecting rod body, and the first threaded connection portion matches the first threaded hole at one end of the reference seat.

[0009] Optionally, in the internal cavity measuring assembly of this application, the measuring seat includes a measuring seat body that is cylindrical in shape and a second threaded connection portion integrally connected to one end of the measuring seat body, and a second threaded hole is coaxially provided at the other end of the measuring seat body.

[0010] Optionally, in the internal cavity measuring assembly of this application, a movable platform is provided on the outer side wall of the measuring seat body, and a movable groove is provided on the movable platform. The movable groove communicates with the second threaded hole, and the length direction of the movable groove is parallel to the axis of the second threaded hole.

[0011] Optionally, in the internal cavity measuring assembly of this application, a locking threaded hole is provided on the outer side wall of the measuring seat body. The axis of the locking threaded hole is perpendicular to the axis of the second threaded hole and parallel to the width direction of the movable groove.

[0012] Optionally, in the cavity measurement component of this application, a first scale mark is provided on the active platform.

[0013] Optionally, in the internal cavity measuring assembly of this application, the measuring movable block consists of a movable scale part and a connecting protrusion integrally connected to the bottom of the movable scale part. The connecting protrusion is provided with a plurality of first connecting pin holes, and the connecting protrusion matches the movable groove on the outer side wall of the measuring seat.

[0014] Optionally, in the internal cavity measuring assembly of this application, a second scale mark is provided on the movable scale section.

[0015] Optionally, in the internal cavity measurement assembly of this application, the reference column includes a reference column body, the reference column body is cylindrical in shape, one end of the reference column body is hemispherical, an assembly platform is provided on the outer side wall of the reference column body, and a plurality of second connecting pin holes are provided on the assembly platform, the second connecting pin holes matching the first connecting pin holes and connecting pins at the bottom of the measuring movable block.

[0016] The internal cavity measuring component of this application has a simple structure, intuitive dimension reading, and an accuracy of 0.001mm. During measurement, it improves the existing technology that requires the simultaneous movement of two axes to only require the movement of one axis, which significantly improves measurement efficiency and significantly reduces the skill requirements of the measurement operator. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural example diagram of an internal cavity measurement assembly according to an embodiment of this application;

[0019] Figure 2 This is an example diagram of the exploded structure of an internal cavity measurement assembly according to an embodiment of this application;

[0020] Figure 3 This is a structural example diagram of a reference base 1 for an internal cavity measurement assembly according to an embodiment of this application;

[0021] Figure 4 This is a structural example diagram of a connecting rod of an internal cavity measuring assembly according to an embodiment of this application;

[0022] Figure 5 This is a structural example diagram of a measuring seat for an internal cavity measuring assembly according to an embodiment of this application;

[0023] Figure 6 This is a structural example diagram of the measuring movable part of an internal cavity measuring assembly according to an embodiment of this application;

[0024] Figure 7 This is another structural example diagram of the measuring active part of an internal cavity measuring assembly according to an embodiment of this application;

[0025] Figure 8 This is a structural example diagram of a reference column for an internal cavity measurement assembly according to an embodiment of this application;

[0026] Figure 9This is an example diagram illustrating the application principle of a reference column for an internal cavity measurement assembly according to an embodiment of this application;

[0027] Figure 10 This is a schematic diagram illustrating another application principle of a reference column for an internal cavity measurement assembly according to an embodiment of this application;

[0028] In the figure, 1-reference base, 2-connecting rod, 3-measuring base, 4-measuring movable block, 5-locking part, 6-reference column, 7-connecting pin, 11-reference base connecting part, 12-reference base support part, 13-first threaded hole, 14-lower reference measuring column, 21-connecting rod body, 22-first threaded connection part, 23-second threaded hole, 31-measuring base body, 32-second threaded connection part, 33-second threaded hole, 34-moving platform, 35-moving groove, 36-locking threaded hole, 37-first scale mark, 41-movable scale part, 42-connecting protrusion, 43-first connecting pin hole, 44-second scale mark, 61-reference column body, 62-assembly platform, 63-second connecting pin hole. Detailed Implementation

[0029] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0030] It should be noted that, in the absence of conflict, the following embodiments and features can be combined with each other; and, based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0031] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this disclosure, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0032] Figure 1 This is a structural example diagram of an internal cavity measurement assembly according to an embodiment of this application. Figure 2 This is an example exploded structural diagram of an internal cavity measurement assembly according to an embodiment of this application, as shown below. Figure 1 and Figure 2As shown, in this embodiment, the internal cavity measurement assembly includes a reference base 1, a connecting rod 2, a measuring base 3, a measuring movable block 4, a locking part 5, a reference post 6, and a connecting pin 7. The reference base 1, the connecting rod 2, and the measuring base 3 are connected by threads in sequence. The measuring movable block 4 is assembled on the outer side of the measuring base 3. The reference post 6 is coaxially assembled on the inner side of one end of the measuring base 3. The reference post 6 is fixedly connected to the measuring movable block 4 through the connecting pin 7. When the reference post 6 moves, it can move the measuring movable block 4 along the axis of the measuring base 3 and lock the reference post 6 and the measuring movable block 4 through the locking part 5.

[0033] Figure 3 This is a structural example diagram of a reference base 1 for an internal cavity measurement assembly according to an embodiment of this application, as shown below. Figure 3 As shown, the reference base 1 in this embodiment includes a reference base connecting part 11 and a reference base support part 12 that are integrally connected. The outer end of the reference base connecting part 11 is provided with a first threaded hole 13, and two lower reference measuring columns 14 are symmetrically arranged at the bottom of the reference base support part 12.

[0034] Figure 4 This is a structural example diagram of a connecting rod of an internal cavity measuring assembly according to an embodiment of this application, as shown below. Figure 4 As shown, in this embodiment, the connecting rod 2 consists of a connecting rod body 21 and a first threaded connection portion 22 integrally connected to one end of the connecting rod body 21. The other end of the connecting rod body 21 is provided with a second threaded hole 23. The first threaded connection portion 22 matches the first threaded hole 13 at one end of the reference base 1. In practical applications, the number of connecting rods 2 in this embodiment can be specifically selected according to the actual measured size range.

[0035] Figure 5 This is a structural example diagram of a measuring seat for an internal cavity measuring assembly according to an embodiment of this application, as shown below. Figure 5 As shown, in this embodiment, the measuring base 3 includes a cylindrical measuring base body 31 and a second threaded connection part 32 integrally connected to one end of the measuring base body 31. A second threaded hole 33 is coaxially disposed at the other end of the measuring base body 31. A movable platform 34 is disposed on the outer wall of the measuring base body 31, and a movable groove 35 is disposed on the movable platform 34. The movable groove 35 communicates with the second threaded hole 33, and the length direction of the movable groove 35 is parallel to the axis of the second threaded hole 33. A locking threaded hole 36 is disposed on the outer wall of the measuring base body 31, and the axis of the locking threaded hole 36 is perpendicular to the axis of the second threaded hole 33 and parallel to the width direction of the movable groove 35. In practical applications, a first scale mark 37 is disposed on the movable platform 34. The locking threaded hole 36 matches the locking part 5, and the locking part 5 is assembled in the locking threaded hole 36 to lock and fix the reference post 6.

[0036] Figure 6This is a structural example diagram of the measuring movable part of an internal cavity measuring assembly according to an embodiment of this application. Figure 7 This is another structural example diagram of the measuring movable part of an internal cavity measuring assembly according to an embodiment of this application, as shown below. Figure 6 and Figure 7 As shown, in this embodiment, the measuring movable block 4 consists of a movable scale part 41 and a connecting protrusion 42 integrally connected to the bottom of the movable scale part 41. The connecting protrusion 42 is provided with a plurality of first connecting pin holes 43, and the movable scale part 41 is provided with a second scale mark 44. The connecting protrusion 42 matches the movable groove 35 on the outer side wall of the measuring seat 3.

[0037] Figure 8 This is a structural example diagram of a reference column for an internal cavity measurement assembly according to an embodiment of this application, as shown below. Figure 8 As shown, in this embodiment, the reference column 6 includes a reference column body 61, which is cylindrical in shape. One end of the reference column body 61 is hemispherical. An assembly platform 62 is provided on the outer wall of the reference column body 61. A plurality of second connecting pin holes 63 are provided on the assembly platform 62. The second connecting pin holes 63 are matched with the first connecting pin holes 43 and the connecting pins 7 at the bottom of the measuring movable block 4.

[0038] Figure 9 This is a schematic diagram illustrating the application principle of a reference column for an internal cavity measurement assembly according to an embodiment of this application. Figure 10 This is a schematic diagram illustrating another application principle of a reference column for an internal cavity measurement assembly according to an embodiment of this application; as shown... Figure 9 and Figure 10 As shown, the application principle of the cavity measurement component of this application is as follows:

[0039] Based on the measured dimensions, determine the measuring range of the measuring instrument, select the corresponding number of connecting rods 2, and press... Figures 1 to 8 Assemble the internal cavity measurement components.

[0040] The two lower reference measuring columns 14 at the bottom of the reference base 1 are simultaneously brought into contact with the lower end face of the workpiece to be measured, thereby achieving rapid two-point positioning and quickly finding the horizontal position of the X-axis in the measuring plane (XZ).

[0041] Move the measuring movable block 4 to bring the reference column 6 into contact with the upper surface of the part, press the measuring movable block 4 upward, and at the same time swing the reference column 6 slightly left and right. Read the maximum value of the measurement through the second scale mark 44 on the measuring movable block 4 and the first scale mark 37 on the measuring seat 3. This measurement position makes the two measuring planes (XZ and YZ planes) in the correct position, and the measuring axis is perpendicular to the workpiece surface 1 and the workpiece surface 2. At this time, the actual dimensions of the upper and lower end faces of the workpiece to be measured can be read directly. Alternatively, tighten the locking part 5, take out the inner cavity measuring component, and read the dimension value again. It can also be compared with other methods, such as with a coordinate measuring machine or an articulated arm machine.

[0042] The internal cavity measuring component of this embodiment has a simple structure, intuitive dimension reading, and an accuracy of 0.001mm. During measurement, it improves the existing technology that requires the simultaneous movement of two axes to only require the movement of one axis, significantly improving measurement efficiency and significantly reducing the skill requirements for measurement operators.

[0043] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An internal cavity measuring assembly, characterized in that, The internal cavity measuring assembly includes a reference base, a connecting rod, a measuring base, a measuring movable block, a locking part, a reference post, and a connecting pin. The reference base, connecting rod, and measuring base are sequentially threaded together. The measuring movable block is mounted on the outer side of the measuring base, and the reference post is coaxially mounted on the inner side of one end of the measuring base. The reference post is fixedly connected to the measuring movable block through the connecting pin. When the reference post moves, it can move the measuring movable block along the axis of the measuring base and lock the reference post and the measuring movable block through the locking part.

2. The cavity measuring assembly according to claim 1, characterized in that, The reference base includes an integrally connected reference base connecting part and a reference base support part. The outer end of the reference base connecting part is provided with a first threaded hole, and two lower reference measuring columns are symmetrically arranged at the bottom of the reference base support part.

3. The cavity measuring assembly according to claim 2, characterized in that, The connecting rod consists of a connecting rod body and a first threaded connection part integrally connected to one end of the connecting rod body. The other end of the connecting rod body is provided with a second threaded hole, and the first threaded connection part matches the first threaded hole at one end of the reference seat.

4. The cavity measuring assembly according to claim 3, characterized in that, The measuring base includes a cylindrical measuring base body and a second threaded connection part integrally connected to one end of the measuring base body, and a second threaded hole coaxially provided at the other end of the measuring base body.

5. The cavity measuring assembly according to claim 4, characterized in that, A movable platform is provided on the outer side wall of the measuring base body, and a movable groove is provided on the movable platform. The movable groove communicates with the second threaded hole, and the length direction of the movable groove is parallel to the axis of the second threaded hole.

6. The cavity measuring assembly according to claim 5, characterized in that, A locking threaded hole is provided on the outer side wall of the measuring seat body. The axis of the locking threaded hole is perpendicular to the axis of the second threaded hole and parallel to the width direction of the movable groove.

7. The cavity measuring assembly according to claim 6, characterized in that, The first scale marker is set on the activity platform.

8. The cavity measuring assembly according to claim 7, characterized in that, The measuring block consists of a movable scale part and a connecting protrusion integrally connected to the bottom of the movable scale part. The connecting protrusion is provided with multiple first connecting pin holes, and the connecting protrusion matches the movable groove on the outer wall of the measuring seat.

9. The cavity measuring assembly according to claim 8, characterized in that, A second scale mark is set on the active scale section.

10. The cavity measuring assembly according to claim 9, characterized in that, The reference column includes a reference column body, which is cylindrical in shape. One end of the reference column body is hemispherical. An assembly platform is provided on the outer wall of the reference column body. Multiple second connecting pin holes are provided on the assembly platform. These second connecting pin holes match the first connecting pin holes and connecting pins at the bottom of the measuring movable block.

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