Rapid measuring device for inner groove of machined part

Abstract

The utility model discloses a quick measuring device for a groove in a machined part, which comprises an inner caliper and a dial indicator, the inner caliper comprises a measuring claw, the dial indicator comprises a measuring head and a measuring range meter, the measuring claw is provided with a limiting block and a base, the side surface of the base is provided with a through hole, and the measuring range meter is arranged in the through hole. A threaded hole communicated with the through hole is further formed in the base, a locking nut is further configured, a measuring head of the dial indicator penetrates through the through hole to be in contact with the limiting block, and the dial indicator is connected with the locking nut in threaded connection with the interior of the threaded hole; and the measuring claw is also provided with a measuring head and an adjusting mechanism for controlling the opening degree of the measuring claw. According to the measuring device, the width of the inner groove can be obtained through the inner caliper, numerical values can be directly read through the dial indicator, operation and use are convenient, the overall structure is simple, reading is convenient, the measuring efficiency is effectively improved, the measuring cost is reduced, and the measuring device is suitable for application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a rapid measuring device for grooves in machined parts. Background Art

[0002] In the CNC machining process, many machined parts with inner grooves are involved, and the inner grooves mainly refer to the tool retraction grooves, axial positioning grooves, oil and gas channel grooves and sealing grooves. These inner grooves are indispensable because they play the role of tool retraction, positioning, oiling, sealing and ventilation. For this type of machined parts with inner grooves, the traditional tools for measuring the inner grooves include internal calipers, angle vernier calipers and internal groove micrometers. The angle vernier calipers and internal groove micrometers are difficult to enter for some conical parts, making measurement difficult, and the measurement steps of the internal caliper are complicated, the random errors are too large, and gross errors are prone to occur, which is not only time-consuming and labor-intensive, but also easy to cause parts to be out of tolerance or scrapped.

[0003] The micrometer is an indicating measuring tool widely used in precision measurement. The micrometer is a length measuring instrument that converts general linear displacement (linear motion) into the rotational motion of the pointer through gears or levers, and then reads the reading on the dial. The micrometer is mainly used to check the shape and position errors of the workpiece (such as roundness, flatness, verticality and circular runout, etc.), and is also often used for the precise alignment of the workpiece. It has a wide range of uses. Therefore, in order to solve the problem that the internal caliper gauge cannot directly read the size of the internal groove, so as to meet the measurement needs of large quantities of machined parts with internal grooves, the advantages of the micrometer gauge for convenient measurement are used to improve the existing internal caliper gauge, thereby providing a fast measuring device with simple structure, convenient operation and simple reading, so as to meet the actual measurement needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to solve the problems existing in the background technology. By improving the existing internal caliper gauge, a rapid measuring device with simple structure, convenient operation and simple reading is proposed. The measuring device can effectively solve the problem that the internal caliper gauge cannot directly read the internal groove size. It can not only effectively improve the measurement efficiency, but also facilitate operation and use, improve work efficiency and reduce measurement costs. Specifically, it is a rapid measuring device for the internal grooves of machined parts.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a rapid measuring device for grooves in machined parts, including an internal caliper gauge and a micrometer, the internal caliper gauge including two rotatable measuring jaws, and the micrometer including a measuring head and a range gauge, a limit block and a base are provided on the measuring jaw, and a through hole corresponding to the micrometer is provided on the side of the base, and a threaded hole communicating with the through hole is also provided in the base, the through hole and the threaded hole are arranged in a vertical state in the base, and a locking nut corresponding to the threaded hole is also configured, the measuring head of the micrometer passes through the through hole and contacts with the limit block, and the micrometer is connected to the locking nut screwed in the threaded hole; a side head is also provided on the measuring jaw, and an adjustment mechanism for controlling the opening and closing degree of the measuring jaw is also provided on the measuring jaw.

[0006] Furthermore, a rapid measuring device for grooves in machined parts described in the utility model is adopted, wherein the limit block and the base are located on the measuring claws above the adjustment mechanism, wherein the limit block is arranged on one of the measuring claws, and the base is arranged on the other measuring claw, and the limit block and the base located on the measuring claws are at the same horizontal height position.

[0007] Furthermore, a rapid measuring device for grooves in machined parts described in the utility model is adopted, wherein the adjusting mechanism includes an adjusting nut, an adjusting bolt rod and a connecting pin, wherein the connecting pin is arranged on the measuring claw, the adjusting bolt rod is connected to the measuring claw via the connecting pin, and the adjusting nut is threaded into the adjusting bolt rod, and the adjusting nut can be used to make the measuring claw on one side of the limit block abut against the adjusting bolt rod.

[0008] Furthermore, in the fast measuring device for grooves in machined parts described in the utility model, the side heads in the measuring claws are arranged vertically at the bottom of the measuring claws, and the side heads on the two measuring claws are arranged symmetrically.

[0009] The rapid measuring device for the inner groove of machined parts described in the utility model has the beneficial effect compared with the prior art in that: by improving the existing internal caliper, combined with the advantage of convenient measurement of the micrometer, the side heads on the two measuring claws are used to contact the side end face of the inner groove to be measured, and the measured value can be directly displayed through the range gauge in the micrometer, which effectively solves the problem that the internal caliper cannot directly read the size of the inner groove, and can meet the measurement needs of a large number of mechanical processing parts with inner grooves, which not only improves the measurement accuracy, but also greatly improves the measurement efficiency. It can be seen that by using the measuring device and measuring method described in the utility model, the width of the inner groove can be obtained by the internal caliper, and the value can be directly read by the micrometer, and no other measuring tools need to be configured for measurement, which is convenient for operation and use, and its overall structure is simple and easy to read, which not only effectively improves the measurement efficiency, but also reduces the measurement cost, and is suitable for popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the lateral structure of the utility model after the micrometer is removed;

[0013] Figure 3 It is a schematic diagram of the installation structure of the limit block and the base described in the utility model;

[0014] Figure 4 It is a structural schematic diagram of the internal caliper gauge described in the utility model;

[0015] Figure 5 It is a schematic diagram of the structure of the utility model in the measuring state.

[0016] As shown in the figure: 1-internal caliper, 2-measuring claw, 3-limit block, 4-base, 5-through hole, 6-threaded hole, 7-micrometer, 8-locking nut, 9-side head, 10-adjusting nut, 11-adjusting bolt rod, 12-connecting pin. DETAILED DESCRIPTION

[0017] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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. Example 1

[0018] like Figures 1 to 4 As shown, the present embodiment provides a rapid measuring device for the inner groove of a machined part, comprising an internal caliper 1 and a micrometer 7, wherein the internal caliper (1 comprises two rotatable measuring jaws 2, and the micrometer 7 comprises a measuring head and a range gauge, a limit block 3 and a base 4 are provided on the measuring jaw 2, and a through hole 5 corresponding to the micrometer 7 is provided on the side of the base 4, and a threaded hole 6 communicating with the through hole 5 is also provided in the base 4, the through hole 5 and the threaded hole 6 are arranged in the base 4 in a vertical state, and a locking nut 8 corresponding to the threaded hole 6 is also configured, the measuring head of the micrometer 7 passes through the through hole 5 and contacts with the limit block 3, and the micrometer 7 is connected to the locking nut 8 screwed in the threaded hole 6; a side head 9 is also provided on the measuring jaw 2, and an adjusting mechanism for controlling the opening and closing degree of the measuring jaw 2 is also provided on the measuring jaw 2.

[0019] Furthermore, a rapid measuring device for grooves in machined parts described in this embodiment is used, wherein the limit block 3 and the base 4 are located on the measuring claws 2 above the adjustment mechanism, wherein the limit block 3 is arranged on one of the measuring claws 2, and the base 4 is arranged on the other measuring claw 2, and the limit block 3 and the base 4 located on the measuring claws 2 are at the same horizontal height position.

[0020] Furthermore, a rapid measuring device for grooves in machined parts described in this embodiment is used, and the adjusting mechanism includes an adjusting nut 10, an adjusting bolt rod 11 and a connecting pin 12, the connecting pin 12 is arranged on the measuring claw 2, the adjusting bolt rod 11 is connected to the measuring claw 2 through the connecting pin 12, and the adjusting nut 10 is screwed into the adjusting bolt rod 11. The adjusting nut 10 can be used to make the measuring claw 2 on the side where the limit block 3 is provided be abutted and connected with the adjusting bolt rod 11. Example 2

[0021] This embodiment is based on the embodiment 1. In order to facilitate the contact between the side head 9 in the measuring claw 2 and the side end face of the inner groove to be measured and improve its measurement accuracy, the side head 9 in the measuring claw 2 is arranged in a vertical state at the bottom of the measuring claw 2, and the side heads 9 on the two measuring claws 2 are arranged in a symmetrical state. The side heads 9 on the two measuring claws 2 are used to contact the side end faces of the inner groove respectively, and finally the value on the range gauge in the micrometer 7 can be used to directly measure the width of the inner groove of the machined part, which is convenient for operation. Example 3

[0022] like Figure 5 As shown, this embodiment also provides a method for measuring a groove in a machined part using the above-mentioned measuring device, and the measuring method comprises the following steps:

[0023] S1. After tightening the two measuring claws 2 of the inner caliper 1 inwardly, insert them into the inner groove of the machined part to be measured, and then extend the measuring claws 2 outwardly so that the side heads 9 of the two measuring claws 2 are in contact with the side end surfaces of the inner groove of the machined part;

[0024] S2. By adjusting the adjusting nut 10 in the adjusting mechanism, tighten the adjusting nut 10 in the positive direction, and use the adjusting nut 10 to make the measuring claw 2 provided on one side of the limit block 3 abut against the adjusting bolt rod 11 to fix the measuring claw 2;

[0025] S3. First, insert the measuring head of the front end of the micrometer 7 into the through hole 5 in the base 4, and make it pass through the through hole 5 to contact the limit block 3, and then use the locking nut 8 to screw into the threaded hole 6, and use the locking nut 8 to fix the micrometer 7. The value on the range gauge in the micrometer 7 can directly measure the groove width in the machined part;

[0026] S4. After the measurement is completed, first loosen the locking nut 8 to separate the micrometer 7 from the base 4, then loosen the adjusting nut 10 of the adjusting mechanism, and use the adjusting nut 10 to separate the measuring claw 2 from the adjusting bolt rod 11 to release the fixation of the measuring claw 2. Finally, tighten the measuring claw 2 inwards and take the internal caliper 1 out of the groove in the machined part.

[0027] Compared with the prior art, the utility model discloses a rapid measuring device for inner grooves of machined parts, which has the following beneficial effects: by improving the existing internal caliper gauge and combining the advantage of convenient measurement of the micrometer, the side heads 9 on the two measuring claws 2 are used to contact the side end surface of the inner groove to be measured, and the measurement value can be directly displayed through the range gauge in the micrometer 7, which effectively solves the problem that the internal caliper gauge cannot directly read the size of the inner groove, and can meet the measurement needs of large quantities of machined parts with inner grooves, which not only improves the measurement accuracy, but also greatly improves the measurement efficiency.

[0028] In summary, by adopting the measuring device described in the utility model, the width of the inner groove can be obtained by the internal caliper, and the value can be directly read by the micrometer, without the need to configure other measuring tools for measurement, which is convenient for operation and use. The overall structure is simple and the reading is convenient, which not only effectively improves the measurement efficiency, but also reduces the measurement cost, and is suitable for popularization and application.

[0029] Other details of the present invention are all conventional technologies known to those skilled in the art, and thus are not described in detail.

[0030] The protection scope of the utility model is not limited to the technical solutions disclosed in the specific implementation methods. The above description is only a preferred implementation method of the utility model and does not limit the utility model. Any minor modifications, equivalent substitutions and improvements made based on the technical solutions of the utility model should be included in the protection scope of the technical solutions of the utility model.

Claims

1. A rapid measuring device for a groove in a machined part, comprising an internal caliper (1) and a micrometer (7), wherein the internal caliper (1) comprises two rotatable measuring jaws (2), and the micrometer (7) comprises a measuring head and a range gauge, characterized in that: A limit block (3) and a base (4) are provided on the measuring claw (2), a through hole (5) corresponding to the micrometer (7) is provided on the side of the base (4), and a threaded hole (6) communicating with the through hole (5) is also provided in the base (4), the through hole (5) and the threaded hole (6) are arranged in the base (4) in a vertical state, and a locking nut (8) corresponding to the threaded hole (6) is also provided, the measuring head of the micrometer (7) passes through the through hole (5) and contacts the limit block (3), and the micrometer (7) is connected to the locking nut (8) screwed in the threaded hole (6); a side head (9) is also provided on the measuring claw (2), and an adjustment mechanism for controlling the opening and closing degree of the measuring claw (2) is also provided on the measuring claw (2).

2. A rapid measuring device for grooves in machined parts according to claim 1, characterized in that: The limit block (3) and the base (4) are located on the measuring claws (2) above the adjustment mechanism, wherein the limit block (3) is arranged on one of the measuring claws (2), and the base (4) is arranged on the other measuring claw (2), and the limit block (3) and the base (4) located on the measuring claws (2) are at the same horizontal height.

3. A rapid measuring device for grooves in machined parts according to claim 2, characterized in that: The adjusting mechanism comprises an adjusting nut (10), an adjusting bolt rod (11) and a connecting pin (12); the connecting pin (12) is arranged on the measuring claw (2); the adjusting bolt rod (11) is connected to the measuring claw (2) via the connecting pin (12); the adjusting nut (10) is screwed into the adjusting bolt rod (11); and the measuring claw (2) on the side provided with the limit block (3) can be abutted and connected with the adjusting bolt rod (11) by means of the adjusting nut (10).

4. A rapid measuring device for grooves in machined parts according to claim 3, characterized in that: The side heads (9) in the measuring claw (2) are arranged in a vertical state at the bottom of the measuring claw (2), and the side heads (9) on the two measuring claws (2) are arranged in a symmetrical state.

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