Tool for measuring inner diameter of asymmetric point

Abstract

The utility model discloses a tool for measuring the inner diameter of an asymmetric point, which comprises a gauge rod, a support rod, two measuring heads and an inner ring gauge, one end of the gauge rod is detachably provided with a gauge stand, the gauge stand is provided with a dial gauge, the support rod is vertical to the gauge rod, the middle part of the support rod is detachably connected to the other end of the gauge rod, and the inner ring gauge is arranged on the support rod. The two measuring heads are both of a spherical structure and are detachably connected to the two ends of the supporting rod respectively, the sphere center positions of the two measuring heads and the center position of a gauge head of the dial gauge are arranged in a coplanar mode, and the inner ring gauge is of an annular structure. And three marking points corresponding to the three points to be detected on the product to be detected one by one are operably marked on the inner ring gauge. Under the condition that a general measuring tool cannot measure, the internal diameter of a product can be accurately measured, and the measurement is convenient, rapid and effective.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring tools, in particular to a tool for measuring the inner diameter of an asymmetric point. Background Art

[0002] At present, in the machining process, due to the different structures of various mechanical parts, when measuring mechanical parts, if there is no measuring point in the symmetric direction of the mechanical parts, the general measuring tool cannot measure it. Therefore, there is an urgent need for a measuring tool that can quickly and correctly measure the inner diameter without symmetric points. Summary of the invention

[0003] In view of the above problems existing in the existing general measuring tools, the present invention aims to provide a tool for measuring the inner diameter of an asymmetric point which has high measurement accuracy, simple structure and convenient measurement.

[0004] The specific technical solutions are as follows:

[0005] A tool for measuring the inside diameter of an asymmetric point, comprising:

[0006] A dial rod, one end of which is detachably mounted with a dial seat, on which a micrometer is mounted;

[0007] A support rod, the support rod is perpendicular to the meter rod, and the middle portion of the support rod is detachably connected to the other end of the meter rod;

[0008] Two probes, both of which are spherical structures and are detachably connected to the two ends of the support rod, and the spherical centers of the two probes are coplanar with the center of the dial gauge head;

[0009] The inner ring gauge is an annular structure, and three marking points corresponding to three points to be tested on the product to be tested can be operably marked on the inner ring gauge.

[0010] As a further improvement and optimization of this solution, each of the measuring heads is connected to the support rod via a rod.

[0011] As a further improvement and optimization of this solution, the probe and the support rod are an integrated structure.

[0012] As a further improvement and optimization of this solution, both ends of the support rod have a first mounting hole, and the ends of the two support rods facing away from the measuring head are respectively inserted into the two first mounting holes;

[0013] Each of the mounting holes also has a locking structure for locking the support rod.

[0014] As a further improvement and optimization of the present solution, the locking structure includes a locking hole provided at the end of the support rod and connected to the first mounting hole, a locking screw is installed in the inner thread of the locking hole, and the support rod is locked by tightening the locking screw.

[0015] As a further improvement and optimization of this solution, the locking screw is a hexagon socket locking screw.

[0016] As a further improvement and optimization of this solution, the meter rod and the support rod are connected by fastening screws.

[0017] As a further improvement and optimization of the present solution, one end of the watch rod has a mounting column, the watch base has a second mounting hole, and the mounting column is matched and inserted into the second mounting hole, and a locking structure is provided between the second mounting hole and the mounting column for locking the watch base on the mounting column.

[0018] As a further improvement and optimization of the present solution, the locking structure includes a locking hole provided on the side wall of the watch stand and vertically connected to the second mounting hole, and a locking screw threadedly installed in the locking hole, which is used to tighten the locking screw to press against the mounting column to lock the watch stand.

[0019] As a further improvement and optimization of this solution, the locking screw is a hexagon socket locking screw.

[0020] Compared with the prior art, the above technical solution has the following positive effects:

[0021] (1) The utility model uses a three-point determination circle method, through two probes and a three-point measuring tool of a micrometer head, combined with a three-point measurement inner ring gauge, the three-point positions are consistent with the corresponding product measurement positions, and the inner diameter size of the product is calculated by the difference comparison method. When a general measuring tool cannot measure, the inner diameter of the product can be accurately measured, and the measurement is convenient, fast and effective.

[0022] (2) The probe in the present invention is a spherical structure, so that the probe and the product are in point contact, thereby improving the accuracy of measurement.

[0023] (3) In the present invention, the measuring head, the table base, the support rod and the table rod are all detachably connected. When not in use, the measuring tool can be disassembled to reduce the storage space occupied. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a top view of a tool for measuring the inner diameter of an asymmetric point according to the utility model;

[0025] Figure 2This is an enlarged view of point A of a tool for measuring the inner diameter of an asymmetric point according to the utility model;

[0026] Figure 3 It is a side view of a tool for measuring the inner diameter of an asymmetric point according to the utility model;

[0027] Figure 4 It is a structural schematic diagram of an inner ring gauge of a tool for measuring the inner diameter of an asymmetric point according to the utility model;

[0028] In the attached figure: 1. product; 2. dial rod; 3. support rod; 4. dial base; 5. micrometer; 6. support rod; 7. locking screw; 8. fastening screw; 9. measuring head; 10. locking screw; 20. inner ring gauge. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Figure 1 This is a top view of a tool for measuring the inner diameter of an asymmetric point according to the utility model. Figure 2 This is an enlarged view of point A of a tool for measuring the inner diameter of an asymmetric point in the utility model. Figure 3This is a side view of a tool for measuring the inner diameter of an asymmetric point according to the utility model. Figure 4 The utility model is a schematic diagram of the structure of an inner ring gauge of a tool for measuring the inner diameter of an asymmetric point, such as Figure 1-4 As shown, a tool for measuring the inner diameter of an asymmetric point in a preferred embodiment is shown, including a gauge rod 2, a support rod 3, two probes 9 and an inner ring gauge 20, one end of the gauge rod 2 is detachably mounted with a gauge base 4, a micrometer 5 is mounted on the gauge base 4, the support rod 3 is perpendicular to the gauge rod 2, the middle part of the support rod 3 is detachably connected to the other end of the gauge rod 2, the two probes 9 are both spherical structures, and are detachably connected to the two ends of the support rod 3, and the center positions of the two probes 9 are coplanar with the center positions of the heads of the micrometer 5, the inner ring gauge 20 is an annular structure, and three marking points corresponding to the three points to be measured on the product 1 to be measured can be operably marked on the inner ring gauge 20.

[0033] In the present embodiment, during measurement, three points are marked on the inner ring gauge 20, and the three points to be measured on the product 1 to be measured are respectively corresponded one by one, and the center positions of the two probes 9 and the center position of the dial gauge 5 are adjusted to be coplanar. At this time, the diameter value determined by the three points is the same as the mark value of the inner ring gauge. The three points corresponding to the marked points in the inner ring gauge 20 are put in for three-point measurement, and the needle of the dial gauge 5 is adjusted to zero position. Then, the product 1 is put in for measurement. The two probes 9 are close to the two corresponding points on the inner wall of the product, and the dial rod swings up and down along the central axis of the inner hole of the product. The maximum value of the dial gauge reading is recorded, and the inner diameter size of the product 1 can be calculated by comparing the readings.

[0034] In this embodiment, a three-point circle determination method is used. Through the three-point measuring tool of the two probes 9 and the micrometer 5, combined with the three-point measurement of the inner ring gauge 20, the three-point positions are consistent with the corresponding measurement positions of the product 1, and the inner diameter size of the product 1 is calculated by the difference comparison method. When the general measuring tool cannot measure, the inner diameter of the product 1 can be accurately measured, and the measurement is convenient, fast and effective.

[0035] In this embodiment, the probe 9 is a spherical structure, so that the probe 9 is in contact with the product at one point to improve the accuracy of the measurement.

[0036] As a further improvement and optimization of the present solution, each of the measuring heads 9 is connected to the supporting rod 3 via a supporting rod 6 .

[0037] As a further improvement and optimization of this solution, the probe 9 and the support rod 6 are an integrated structure.

[0038] As a further improvement and optimization of this solution, both ends of the support rod 3 have a first mounting hole, and the ends of the two support rods 6 that are away from the measuring head 9 are respectively inserted into the two first mounting holes;

[0039] Each of the mounting holes also has a locking structure for locking the support rod 6 .

[0040] As a further improvement and optimization of the present solution, the locking structure includes a locking hole provided at the end of the support rod 3 and connected to the first mounting hole, and a locking screw 7 is installed in the inner thread of the locking hole. By tightening the locking screw 7, the support rod 6 can be locked by resistance.

[0041] As a further improvement and optimization of the present solution, the locking screw 7 is a hexagon socket locking screw 7 .

[0042] As a further improvement and optimization of the present solution, the watch rod 2 and the support rod 3 are connected via a fastening screw 8 .

[0043] Preferably, the fastening screw 8 is a hexagon socket fastening screw 8.

[0044] As a further improvement and optimization of the present solution, one end of the watch rod has a mounting column, the watch base 4 has a second mounting hole, and the mounting column is matched and inserted into the second mounting hole, and a locking structure is provided between the second mounting hole and the mounting column for locking the watch base 4 on the mounting column.

[0045] As a further improvement and optimization of the present solution, the locking structure includes a locking hole provided on the side wall of the watch base 4 and vertically connected to the second mounting hole, and a locking screw 7 threadedly installed in the locking hole, which is used to tighten the locking screw 10 to press against the mounting column, thereby locking the watch base 4.

[0046] As a further improvement and optimization of the present solution, the locking screw 10 is a hexagon socket locking screw 10 .

[0047] In this embodiment, the measuring head 9, the table base 4, the support rod 3 and the table rod 2 are all detachably connected. When not in use, the measuring tool can be disassembled to reduce the storage space occupied.

[0048] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool for measuring the inner diameter of an asymmetric point, characterized in that: include: A dial rod, one end of which is detachably mounted with a dial seat, on which a micrometer is mounted; A support rod, the support rod is perpendicular to the meter rod, and the middle portion of the support rod is detachably connected to the other end of the meter rod; Two probes, both of which are spherical structures and are detachably connected to the two ends of the support rod, and the spherical centers of the two probes are coplanar with the center of the dial gauge head; The inner ring gauge is an annular structure, and three marking points corresponding to three points to be tested on the product to be tested can be operably marked on the inner ring gauge.

2. The tool for measuring the inner diameter of an asymmetric point according to claim 1, characterized in that: Each of the measuring heads is connected to the supporting rod via a rod.

3. The tool for measuring the inner diameter of an asymmetric point according to claim 2, characterized in that: The measuring head and the supporting rod are an integrated structure.

4. The tool for measuring the inner diameter of an asymmetric point according to claim 3, characterized in that: Both ends of the support rod are provided with a first mounting hole, and the ends of the two support rods facing away from the measuring head are respectively inserted into the two first mounting holes; Each of the mounting holes also has a locking structure for locking the support rod.

5. The tool for measuring the inner diameter of an asymmetric point according to claim 4, characterized in that: The locking structure comprises a locking hole provided at the end of the support rod and connected to the first mounting hole, a locking screw is installed in the inner thread of the locking hole, and the support rod is locked by tightening the locking screw.

6. The tool for measuring the inner diameter of an asymmetric point according to claim 5, characterized in that: The locking screw is a hexagon socket locking screw.

7. The tool for measuring the inner diameter of an asymmetric point according to claim 1, characterized in that: The meter rod and the support rod are connected via fastening screws.

8. The tool for measuring the inner diameter of an asymmetric point according to claim 1, characterized in that: One end of the watch rod has a mounting post, the watch base has a second mounting hole, and the mounting post is matched and inserted into the second mounting hole, and a locking structure is provided between the second mounting hole and the mounting post for locking the watch base on the mounting post.

9. The tool for measuring the inner diameter of an asymmetric point according to claim 8, characterized in that: The locking structure includes a locking hole provided on the side wall of the meter stand and vertically connected to the second mounting hole, and a locking screw threadedly installed in the locking hole, which is used to tighten the locking screw to press against the mounting column to lock the meter stand.

10. The tool for measuring the inner diameter of an asymmetric point according to claim 9, characterized in that: The locking screw is a hexagon socket locking screw.

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