Tool for measuring diameters of inner hole and outer circle

Abstract

The utility model discloses a tool for measuring the diameter of an inner hole and the diameter of an outer circle, and the tool comprises a measuring rod, a sliding block, a fixed seat, a dial indicator, an oscillating rod, a movable measuring head, a fixed measuring head, and two pull rods. Elastic pieces are arranged between the two sides of the sliding block and the measuring rod, the fixing base is connected to one side of the measuring rod, a measuring rod sleeve of the dial indicator is horizontally installed on the fixing base in a sliding mode, a locking bolt is arranged between the fixing base and the measuring rod sleeve of the dial indicator, and the measuring rod sleeve of the dial indicator can be fixed by screwing down the locking bolt. Therefore, the measuring rod sleeve of the dial indicator is locked on the fixed seat. According to the utility model, the inner diameter and the outer diameter of a product can be measured, the measurement is convenient and fast, and the applicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring tools, in particular to a tool for measuring the diameters of inner holes and outer circles. Background Art

[0002] At present, in the process of mechanical processing, a measuring tool is often used that can only measure the inner hole diameter or the outer circle diameter. When measuring the inner diameter and outer diameter of the product, two sets of measuring tools need to be prepared for separate measurements, which has low applicability and increases the measurement cost. Summary of the invention

[0003] In view of the above problems of the existing measuring tools, the present invention aims to provide a tool for measuring the inner hole and outer circle diameters which has high applicability, simple structure and low measuring cost.

[0004] The specific technical solutions are as follows:

[0005] A tool for measuring inner hole and outer circle diameters, comprising:

[0006] A measuring rod, the measuring rod is arranged horizontally;

[0007] A slider, which can be slidably installed on one side of the measuring rod in a horizontal direction, and elastic members are provided between both sides of the slider and the measuring rod;

[0008] A fixing seat connected to one side of the measuring rod;

[0009] A micrometer, wherein a measuring rod sleeve of the micrometer is horizontally slidably mounted on the fixing seat, and a locking bolt is provided between the fixing seat and the measuring rod sleeve of the micrometer, and the measuring rod sleeve of the micrometer is locked to the fixing seat by tightening the locking bolt;

[0010] A swing rod, the swing rod is connected to the top of the slider and is in contact with the measuring rod of the micrometer;

[0011] A movable probe, the movable probe being connected to the bottom of the slider;

[0012] A fixed measuring head connected to the bottom side wall of the other side of the measuring rod;

[0013] Two pull rods are respectively connected to two sides of the sliding block.

[0014] As a further improvement and optimization of the present solution, the fixed probe and the movable probe are both spherical probes, and the fixed probe and the measuring rod, and the movable probe and the slider are connected via a connecting rod.

[0015] As a further improvement and optimization of this solution, the measuring rod includes:

[0016] A rod body, wherein the rod body is a structure with openings at both ends;

[0017] Two limit blocks are arranged at intervals in one side of the rod body, and a sliding cavity is formed in the rod body in the area between the two limit blocks. The slider is slidably arranged in the sliding cavity, and the top of the rod body has a first long hole connected to the sliding cavity, and the bottom has a second long hole connected to the sliding cavity. The swing rod passes through the first long hole and is in limited contact with the measuring rod of the micrometer, and the connecting rod connected to the movable probe passes through the second long hole and is connected to the slider.

[0018] As a further improvement and optimization of this solution, the two pull rods are respectively a short rod and a long rod, one end of the short rod is connected to the side of the slider away from the fixed probe, and the other end slides through a limit block away from the fixed probe and extends to the outside of the rod body, and the other end of the long rod is connected to the other side of the slider, and the other end slides through another limit block and extends to the outside of the rod body.

[0019] As a further improvement and optimization of the present solution, the two elastic members are both springs, and the two springs are both arranged in the sliding cavity and are respectively located on both sides of the sliding block.

[0020] As a further improvement and optimization of this solution, the other end of the short rod and the other end of the long rod are both provided with a handle.

[0021] As a further improvement and optimization of this solution, the fixing seat is arranged on the outside of the measuring rod, and the bottom of the fixing seat has a fastening hole, and a fastening screw is installed in the inner thread of the fastening hole. The fastening screw is tightened against the measuring rod to fasten the fixing seat to the measuring rod.

[0022] As a further improvement and optimization of the present solution, the top side wall of the fixing seat has an installation opening, the measuring rod sleeve of the micrometer is slidably installed in the installation opening, and the top of the fixing seat has a locking hole, the locking bolt is installed in the locking hole, and the measuring rod sleeve of the micrometer is locked into the installation opening by tightening the locking bolt against the measuring rod sleeve of the micrometer.

[0023] As a further improvement and optimization of this solution, the locking bolt is a knurled bolt.

[0024] Compared with the prior art, the above technical solution has the following positive effects:

[0025] (1) In the utility model, the movable probe is connected to the slider, and elastic parts are respectively arranged on both sides of the slider, so that the inner diameter and the outer diameter of the product can be measured, and the measurement is convenient and fast with high applicability.

[0026] (2) In the present invention, both the fixed probe and the movable probe are spherical probes, which improves the accuracy of measurement.

[0027] (3) In order to facilitate the adjustment of the micrometer in the utility model, the micrometer is unlocked by loosening the locking bolt, and the micrometer can be adjusted in the horizontal direction. After the position is adjusted, the micrometer is locked to the fixed seat by tightening the locking bolt, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of a tool for measuring inner hole and outer circle diameters of the utility model in a state of measuring inner diameter;

[0029] Figure 2 This is a schematic diagram of a tool for measuring inner hole and outer circle diameters of the utility model in a state of measuring outer diameter;

[0030] Figure 3 This is an enlarged schematic diagram of the structure of a tool for measuring the diameter of an inner hole and an outer circle of the utility model;

[0031] Figure 4 This is a schematic structural diagram of an outer ring gauge of a tool for measuring inner hole and outer circle diameters of the utility model;

[0032] Figure 5 This is a schematic structural diagram of an inner ring gauge of a tool for measuring inner hole and outer circle diameters of the utility model;

[0033] In the attached figure: 1. measuring rod; 2. sliding block; 3. fixing seat; 4. micrometer; 5. locking bolt; 6. elastic part; 7. movable measuring head; 8. fixed measuring head; 9. pulling rod; 10. swinging rod; 11. rod body; 12. limiting block; 22. elastic sleeve; 31. fastening screw; 81. connecting rod; 91. handle. DETAILED DESCRIPTION

[0034] 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.

[0035] 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.

[0036] 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.

[0037] Figure 1 This is a schematic diagram of a tool for measuring inner hole and outer circle diameter in the utility model in the inner diameter measuring state. Figure 2 This is a schematic diagram of a tool for measuring inner hole and outer circle diameters in the utility model in the state of measuring outer diameter. Figure 3 This is an enlarged schematic diagram of the structure of a tool for measuring the inner hole and outer circle diameter of the utility model. Figure 4 This is a schematic diagram of the structure of an outer ring gauge of a tool for measuring inner hole and outer circle diameters of the utility model. Figure 5 The utility model is a schematic diagram of the structure of an inner ring gauge of a tool for measuring inner hole and outer circle diameter, such as Figure 1-5 As shown, a tool for measuring inner hole and outer circle diameter of a preferred embodiment is shown, comprising a measuring rod 1, a slider 2, a fixed seat 3, a micrometer 4, a swinging rod 10, a movable probe 7, a fixed probe 8 and two pull rods 9. The measuring rod 1 is horizontally arranged, and the slider 2 can be slidably installed on one side of the measuring rod 1 along the horizontal direction. Elastic members 6 are provided between both sides of the slider 2 and the measuring rod 1. The fixed seat 3 is connected to one side of the measuring rod 1. The measuring rod sleeve of the micrometer 4 is horizontally slidably installed on the fixed seat 3, and a locking bolt 5 is provided between the fixed seat 3 and the measuring rod sleeve of the micrometer 4. By tightening the locking bolt 5, the measuring rod sleeve of the micrometer 4 is locked to the fixed seat 3. The swinging rod 10 is connected to the top of the slider 2 and is in contact with the measuring rod limit of the micrometer 4. The movable probe 7 is connected to the bottom of the slider 2, and the fixed probe 8 is connected to the bottom side wall of the other side of the measuring rod 1. The two pull rods 9 are respectively connected to the two sides of the slider 2.

[0038] In this embodiment, during measurement, the movable probe 7 is connected to the slider 2. Since elastic members 6 are respectively provided on both sides of the slider 2, the inner diameter and outer diameter of the product can be measured. Before measuring the inner diameter of the product, the pull rod can be extended and retracted to make one end of the fixed probe 9 close to the inner wall, and one end of the sliding probe 7 close to the inner wall. With the fixed probe 9 as the base point, the measuring rod is rotated clockwise and counterclockwise perpendicular to the axis of the inner hole of the inner ring gauge to take the maximum reading. Then, with the fixed probe 9 as the base point, the measuring rod is swung up and down along the axis of the inner hole of the inner ring gauge to take the maximum reading until the two readings are the same, that is, the table is correct, and the micrometer 5 is calibrated to zero;

[0039] When measuring the inner diameter of the product, the pull rod can be extended and retracted to place one end of the fixed probe 9 close to the inner wall and one end of the sliding probe 7 close to the inner wall. With the fixed probe 9 as the base point, the measuring rod is rotated clockwise and counterclockwise perpendicular to the axis of the inner hole of the product. The sliding of the slider 2 drives the swing rod 10 to swing and act on the measuring rod of the micrometer 4 to take the maximum reading. Then, with the fixed probe 9 as the base point, the measuring rod is swung up and down along the axis of the inner hole of the product to take the maximum reading until the two readings are the same, that is, the measurement is correct, and the readings of the micrometer 4 are compared to measure the inner diameter of the product;

[0040] Similarly, before measuring the outer diameter of the product, the pull rod can be extended and retracted, with one end of the fixed probe 9 close to the outer wall and one end of the sliding probe 7 close to the outer wall. With the fixed probe 9 as the base point, rotate the measuring rod clockwise and counterclockwise perpendicular to the axis of the outer hole of the outer ring gauge, and take the maximum reading. Then, with the fixed probe 9 as the base point, swing the measuring rod up and down along the axis of the outer hole of the outer ring gauge, and take the maximum reading. When the two readings are the same, the table is correct, and the micrometer 5 is calibrated to zero;

[0041] When measuring the outer diameter of the product, the pull rod can be extended and retracted to bring one end of the fixed probe 9 close to the outer wall and one end of the sliding probe 7 close to the outer wall. With the fixed probe 9 as the base point, the measuring rod is rotated clockwise and counterclockwise perpendicular to the axis of the outer hole of the product, and the swing rod 10 is driven to swing by the sliding of the slider 2, and acts on the measuring rod of the micrometer 4 to take the maximum reading. Then, with the fixed probe 9 as the base point, the measuring rod is swung up and down along the axis of the outer hole of the product, and the maximum reading is taken until the two readings are the same, that is, the measurement is correct, and the outer diameter of the product is measured by comparing the readings of the micrometer 4.

[0042] Preferably, the locking bolt 5 is arranged on the top of the fixing seat 3 .

[0043] In another embodiment, an elastic sleeve 22 is further provided between the fixing seat 3 and the measuring rod sleeve of the micrometer 4 , and the measuring rod sleeve of the micrometer 4 is clamped onto the fixing seat 3 through the elastic sleeve 22 by tightening the locking bolt 5 .

[0044] In this embodiment, by connecting the movable probe 7 to the slider 2 and arranging the elastic members 6 on both sides of the slider 2, the inner diameter and the outer diameter of the product can be measured, and the measurement is convenient, fast and highly applicable.

[0045] As a further improvement and optimization of the present solution, both the fixed probe 8 and the movable probe 7 are spherical probes, and the fixed probe 8 and the measuring rod 1 , and the movable probe 7 and the slider 2 are connected via a connecting rod 81 .

[0046] In this embodiment, both the fixed probe 8 and the movable probe 7 are spherical probes to improve the measurement accuracy.

[0047] As a further improvement and optimization of the present scheme, the measuring rod 1 includes a rod body 11 and two limit blocks 12. The rod body 11 is a structure with openings at both ends. The two limit blocks 12 are spaced apart on one side of the rod body 11. A sliding cavity is formed in the area between the two limit blocks 12 in the rod body 11. The slider 2 is slidably arranged in the sliding cavity. The top of the rod body 11 has a first long hole connected to the sliding cavity, and the bottom has a second long hole connected to the sliding cavity. The swing rod 10 passes through the first long hole to contact the measuring rod of the micrometer 4. The connecting rod 81 connected to the movable probe 7 passes through the second long hole to be connected to the slider 2.

[0048] As a further improvement and optimization of the present solution, the two pull rods 9 are respectively a short rod and a long rod. One end of the short rod is connected to the side of the slider 2 away from the fixed probe 8, and the other end slides through a limit block 12 away from the fixed probe and extends to the outside of the rod body 11. The other end of the long rod is connected to the other side of the slider 2, and the other end slides through another limit block 12 and extends to the outside of the rod body 11.

[0049] As a further improvement and optimization of the present solution, the two elastic members 6 are both springs, and the two springs are both arranged in the sliding cavity and are respectively located on both sides of the sliding block 2 .

[0050] As a further improvement and optimization of the present solution, a handle 91 is provided at the other end of the short rod and the other end of the long rod, so as to facilitate adjusting the position of the movable probe 7 by pulling the slide block 2 through the pull rod 9 .

[0051] As a further improvement and optimization of the present solution, the fixing seat 3 is arranged on the outside of the measuring rod 1, and the bottom of the fixing seat 3 has a fastening hole, and a fastening screw 31 is installed in the inner thread of the fastening hole. The fastening screw 31 is tightened against the measuring rod 1 to fasten the fixing seat 3 to the measuring rod 1. In actual use, the position of the fixing seat 3 on the support rod can be adjusted as needed. After adjustment, the fixing seat 3 is locked by the fastening screw 31 to further improve applicability.

[0052] Preferably, the fastening screw 31 is a hexagon socket fastening screw 31 .

[0053] As a further improvement and optimization of this solution, the top side wall of the fixing seat 3 has an installation opening, and the measuring rod sleeve of the micrometer 4 is slidably installed in the installation opening, and the top of the fixing seat 3 has a locking hole, and the locking bolt 5 is installed in the locking hole. By tightening the locking bolt 5 against the measuring rod sleeve of the micrometer 4, the measuring rod sleeve of the micrometer 4 can be locked into the installation opening.

[0054] In order to facilitate the adjustment of the micrometer 4 in this embodiment, the lock of the micrometer 4 is released by loosening the locking bolt 5, and the position of the micrometer 4 can be adjusted horizontally. After the position is adjusted, the micrometer 4 is locked to the fixing seat 3 by tightening the locking bolt 5, which is convenient and quick.

[0055] As a further improvement and optimization of this solution, the locking bolt 5 is a knurled bolt.

[0056] 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 inner hole and outer circle diameter, characterized in that: include: A measuring rod, the measuring rod is arranged horizontally; A slider, which can be slidably installed on one side of the measuring rod in a horizontal direction, and elastic members are provided between both sides of the slider and the measuring rod; A fixing seat connected to one side of the measuring rod; A micrometer, wherein a measuring rod sleeve of the micrometer is horizontally slidably mounted on the fixing seat, and a locking bolt is provided between the fixing seat and the measuring rod sleeve of the micrometer, and the measuring rod sleeve of the micrometer is locked to the fixing seat by tightening the locking bolt; A swing rod, the swing rod is connected to the top of the slider and is in contact with the measuring rod of the micrometer; A movable probe, the movable probe being connected to the bottom of the slider; A fixed measuring head connected to the bottom side wall of the other side of the measuring rod; Two pull rods are respectively connected to two sides of the sliding block.

2. The tool for measuring inner hole and outer circle diameter according to claim 1, characterized in that: The fixed probe and the movable probe are both spherical probes, and the fixed probe and the measuring rod, and the movable probe and the slide block are all connected via a connecting rod.

3. The tool for measuring inner hole and outer circle diameter according to claim 2, characterized in that: The measuring rod comprises: A rod body, wherein the rod body is a structure with openings at both ends; Two limit blocks are arranged at intervals in one side of the rod body, and a sliding cavity is formed in the rod body in the area between the two limit blocks. The slider is slidably arranged in the sliding cavity, and the top of the rod body has a first long hole connected to the sliding cavity, and the bottom has a second long hole connected to the sliding cavity. The swing rod passes through the first long hole and is in limited contact with the measuring rod of the micrometer, and the connecting rod connected to the movable probe passes through the second long hole and is connected to the slider.

4. The tool for measuring inner hole and outer circle diameter according to claim 3, characterized in that: The two pull rods are respectively a short rod and a long rod, one end of the short rod is connected to the side of the slider away from the fixed probe, and the other end slides through a limit block away from the fixed probe to extend to the outside of the rod body, and the other end of the long rod is connected to the other side of the slider, and the other end slides through another limit block to extend to the outside of the rod body.

5. The tool for measuring inner hole and outer circle diameter according to claim 3, characterized in that: The two elastic members are both springs, and the two springs are both arranged in the sliding cavity and are respectively located on both sides of the sliding block.

6. The tool for measuring inner hole and outer circle diameter according to claim 4, characterized in that: The other end of the short rod and the other end of the long rod are both provided with a handle.

7. The tool for measuring inner hole and outer circle diameter according to claim 1, characterized in that: The fixing seat is arranged outside the measuring rod, and the bottom of the fixing seat has a fastening hole, and a fastening screw is installed in the inner thread of the fastening hole. The fixing seat is fastened to the measuring rod by tightening the fastening screw to press against the measuring rod.

8. The tool for measuring inner hole and outer circle diameter according to claim 7, characterized in that: The top side wall of the fixing seat has an installation opening, and the measuring rod sleeve of the micrometer is slidably installed in the installation opening. The top of the fixing seat has a locking hole, and the locking bolt is threadedly installed in the locking hole. The locking bolt is tightened against the measuring rod sleeve of the micrometer to lock the measuring rod sleeve of the micrometer into the installation opening.

9. The tool for measuring inner hole and outer circle diameter according to claim 8, characterized in that: The locking bolt is a knurled bolt.

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