Device for measuring taper hole angle

Abstract

The utility model relates to a device for measuring the angle of a taper hole. The device comprises a measuring tool, a standard component and a coloring gauge. The measuring tool is installed in the testing fixture body through the measuring pin, and the dial indicator, the indicator clamp and the plug are connected with the testing fixture body. The gauge body and the dial indicator control strokes through a spring. After the part is machined, the coloring gauge is used for conducting angle detection on the part, the standard part is used for conducting zero setting on the measuring body after detection is qualified, and then the measuring body is used for measuring the taper of the part. The gauge is simple to operate, and can read specific numerical values compared with a traditional gauge.

Description

Technical Field

[0001] The utility model relates to the field of measuring the angle of a tapered hole of a mechanically processed part, in particular to a device for measuring the angle of a tapered hole. Background Art

[0002] At present, the detection of machined tapered hole parts all uses the taper gauge coloring inspection. The taper gauge is used to detect the error of the part angle. It is based on whether the end face of the measured part is between the two limits of the gauge to judge whether the taper angle meets the requirements. The size limit range of the taper gauge is m = (tolerance of the large end aperture of the measured cone / 2) * ctg cone bevel angle. The manufacturing tolerance of m is ±10% of the m value. Generally, the calculated m value and m value tolerance are small. During processing, the m value should be ensured to be within the qualified range. The processing is difficult and it is easy to exceed the tolerance and lead to scrapping. In addition, the coloring method cannot be digitized to detect the tapered hole angle. Utility Model Content

[0003] In order to overcome the problems existing in the background technology, the utility model provides a device for measuring the angle of a tapered hole, including a measuring tool, a standard part and a colored gauge, the measuring tool is composed of a dial indicator, a nut, a dial clamp, a plug, a test body, a spring and a measuring pin; the dial indicator includes a dial and a tapered handle, the dial clamp is a hollow body with a cone shape at one end and a columnar shape at the other end, the nut cooperates with an outer thread one of the tapered end of the dial clamp, and the tapered handle is fixed in the dial clamp by the nut; the plug is provided with an internal thread one and an external thread three, the test body is a boss-shaped hollow body, the internal thread one cooperates with an outer thread two of the columnar end of the dial clamp, and the external thread three cooperates and is fixed with an internal thread two of the test body; the measuring pin is arranged in the inner clearance at one end of the test body away from the internal thread three, the measuring pin is provided with a boss one, a measuring end and a contact end, the spring is arranged above the boss one, and the contact end cooperates and contacts with the end of the tapered handle.

[0004] One end of the dial indicator cone handle is assembled in the dial clamp, and the dial indicator is fixed in the dial clamp by a nut to form a reading device; the measuring pin and the inspection body are matched with each other in clearance to form a measuring tool; the reading device and the measuring tool are connected by a plug, and a spring is used to control the stroke and also has a buffering effect, so that the reading device and the measuring tool form a complete measuring tool.

[0005] The plug is provided with a boss three on the outside away from the external thread three, and the boss three is placed above the outside of the inspection body; a boss two is also provided on the outside of the watch clip, and the boss two is placed above the outside of the boss three.

[0006] After the processing of the taper parts is completed, the angle of the parts is first detected using a colored gauge. After passing the test, the gauge is calibrated to zero using a standard part, and then the taper of the parts is measured to read the specific value.

[0007] The end of the gauge clamp is processed with a taper and has three equally divided grooves, which is convenient for the dial gauge taper handle to be installed in the gauge clamp, and the nut and the gauge clamp are fixedly connected by threads. The gauge clamp is connected to the inner thread one of the plug through the second thread to form a fixed reading device of the dial gauge. The measuring pin is installed in the inspection body, and the two are matched with each other in clearance, which is convenient for the measuring pin to slide flexibly in the inspection body, and the two constitute a measuring tool. The reading device and the measuring tool are used in conjunction with a spring to control the stroke and also have a buffering effect. The reading device and the measuring tool are connected to the inner thread two of the inspection body through the outer thread three of the plug to form a complete measuring tool. When the parts need to be inspected, the taper of the parts is first inspected using a coloring gauge. If the inspection area is greater than 85%, it is considered qualified. After the inspection is qualified, the measuring body can be zeroed using standard parts. After the dial gauge is zeroed, the taper of the parts can be inspected, and the specific value read out can be used to determine whether the taper of the parts is qualified.

[0008] Beneficial effects of the utility model:

[0009] (1) The tool can quickly and accurately calculate the amount of filing, shortening the processing cycle.

[0010] (2) The tools are modular, making processing, assembly and maintenance very convenient.

[0011] (3) Easy to operate and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings herein are incorporated into and constitute a part of the specification, showing embodiments consistent with the present invention, and together with the specification, are used to explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0013] Figure 1 A schematic diagram of the structure of a measuring tool for measuring the angle of a tapered hole provided by the utility model;

[0014] Figure 2 A schematic diagram of the table clamp structure of the device and measuring tool for measuring the angle of a tapered hole provided by the utility model;

[0015] Figure 3 A top view of the table clamp of the device measuring tool for measuring the angle of a tapered hole provided by the utility model;

[0016] Figure 4 A schematic diagram of the plug structure of the device and measuring tool for measuring the angle of a tapered hole provided by the utility model;

[0017] Figure 5 A schematic diagram of the structure of the measuring tool for measuring the angle of a tapered hole provided by the utility model;

[0018] Figure 6 A schematic diagram of the measuring pin structure of the device and measuring tool for measuring the angle of a tapered hole provided by the utility model;

[0019] Figure 7 A schematic diagram of the structure of the standard parts of the device for measuring the angle of a tapered hole provided by the utility model;

[0020] Figure 8 A schematic diagram of the structure of a colored gauge for measuring the angle of a cone hole provided by the utility model;

[0021] In the attached figure: 1- measuring tool

[0022] 11- dial indicator, 111- dial, 112- taper handle

[0023] 12-Nut

[0024] 13- clamp, 131- equally divided groove, 132- boss 2, 133- external thread 1, 134- external thread 2 14- plug, 141- internal thread 1, 142- external thread 3, 143- boss 3

[0025] 15-Inspection concrete, 151-Internal thread II

[0026] 16-Spring

[0027] 17- measuring pin, 171- boss 1, 172- measuring end, 173- contact end

[0028] 2-Standard Parts, 3-Colored Gauges DETAILED DESCRIPTION

[0029] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the present invention will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0030] See also Figure 1-8, the figure shows a schematic diagram of the structure of the device for measuring the angle of a tapered hole provided by the utility model, including a measuring tool 1, a standard part 2 and a colored gauge 3, the measuring tool 1 is composed of a dial indicator 11, a nut 12, a table clamp 13, a plug 14, a detection body 15, a spring 16, and a measuring pin 17; the dial indicator 11 includes a dial 111 and a table cone handle 112, the table clamp 13 is a hollow body with a cone shape at one end and a columnar shape at the other end, the nut 12 cooperates with an external thread 133 at the tapered end of the table clamp 13, and the table cone handle 112 is fixed in the table clamp 13 through the nut 12; the plug 14 is provided with an internal thread 11 41. External thread three 142, the inspection body 15 is a boss-shaped hollow body, the internal thread one 141 cooperates with the external thread two 134 at the columnar end of the watch clamp 13, and the external thread three 142 is fixed with the internal thread two 151 of the inspection body 15; the measuring pin 17 is arranged in the inspection body 15 away from the internal thread two 151 at one end to fit in the internal clearance, the measuring pin 17 is provided with a boss one 171, a measuring end 172 and a contact end 173, the spring 16 is arranged above the boss one 171, the contact end 173 cooperates with the end of the watch cone handle 112, and the measuring end 172 is a measuring part with an outer cone structure.

[0031] The end of the meter clamp 13 is processed with a taper and is provided with three equally divided grooves 131, so that the dial indicator cone handle 112 can be easily installed into the meter clamp 13, and the nut 12 is fixedly connected to the meter clamp 13 by a thread. The meter clamp 13 is connected to the inner thread 141 of the plug through the second external thread 134, forming a fixed reading device for the dial indicator 11. The measuring pin 17 is installed in the body of the inspection fixture 15, and the two are matched with a clearance, so that the measuring pin 17 can slide flexibly in the inspection body 15, and the two constitute a measuring tool. The reading device and the measuring tool are used in conjunction with the spring 16 to control the stroke and also have a buffering effect. The reading device and the measuring tool are connected to the outer thread 142 of the plug 14 and the inner thread 151 of the inspection body to form a complete measuring tool.

[0032] When parts need to be inspected, first use the coloring gauge 3 to color check the taper of the parts. If the coloring inspection area is greater than 85%, it is considered qualified. After the coloring inspection is qualified, the standard part 2 can be used to zero the measuring body. After the dial indicator 11 is zeroed, the taper of the parts can be checked. The specific value read out can be used to determine whether the taper of the parts is qualified.

[0033] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Any modification or equivalent substitution made to the technical solution of the utility model by ordinary technicians in this field shall be included in the scope of the claims of the utility model as long as it does not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A device for measuring the angle of a tapered hole, characterized in that: The invention comprises a measuring tool (1), a standard part (2) and a coloring gauge (3); the measuring tool (1) comprises a dial indicator (11), a nut (12), a dial clamp (13), a plug (14), a test body (15), a spring (16) and a measuring pin (17); the dial indicator (11) comprises a dial (111) and a dial cone handle (112); the dial clamp (13) is a hollow body with a conical end at one end and a columnar end at the other end; the nut (12) cooperates with an external thread (133) at the conical end of the dial clamp (13); the dial cone handle (112) is fixed in the dial clamp (13) through the nut (12); the plug (14) is provided with an internal thread (141), an external thread (142) and a plurality of internal threads (141). The inspection body (15) is a hollow body in the shape of a boss, the internal thread 1 (141) cooperates with the external thread 2 (134) of the columnar end of the dial clamp (13), and the external thread 3 (142) cooperates and is fixed with the internal thread 2 (151) of the inspection body (15); the measuring pin (17) is arranged in a clearance fit at one end of the inspection body (15) away from the internal thread 2 (151), and the measuring pin (17) is provided with a boss 1 (171), a measuring end (172) and a contact end (173); the spring (16) is arranged above the boss 1 (171), and the contact end (173) cooperates and contacts with the end of the dial cone handle (112), and the measuring end (172) is a measuring part with an outer cone structure.

2. The device for measuring the angle of a tapered hole according to claim 1, characterized in that: The watch clip (13) is also provided with three equally divided grooves (131).

3. The device for measuring the angle of a tapered hole according to claim 1, characterized in that: The plug (14) is provided with a boss (143) on the outside away from the external thread (142).

4. The device for measuring the angle of a tapered hole according to claim 1, characterized in that: The outer side of the watch clip (13) is also provided with a second boss (132) which is placed on the outer side of the third boss (143).

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