A floating non-reference pin based hole position and aperture composite gauge

Abstract

The utility model discloses a kind of hole position aperture composite gauges based on floating non-reference pin, including base, reference pin and floating non-reference pin, it is characterized by: the floating non-reference pin includes pin body and floating mechanism, the pin body outer diameter size is the gauge size of the hole to be measured, the floating mechanism connects pin body and base, allow pin body to float within a certain range.The structure of the application can detect hole position and aperture simultaneously, save detection time;The number of gauge is reduced, and the production cost is reduced;Floating non-reference pin can adapt to hole position deviation, ensure detection accuracy;It is easy to operate and easy to use;Pin body and guide sleeve can be replaced, and it is suitable for the detection of holes of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, specifically to a composite gauge for hole position and diameter based on a floating non-reference pin. Background Technology

[0002] In mechanical manufacturing, hole position and diameter are crucial geometric parameters, and their accuracy directly affects product quality and performance. Traditional hole position inspection typically uses a reference pin for positioning and a non-reference pin for detecting hole position deviation. This method requires the non-reference pin to be made slightly smaller than the hole diameter to ensure smooth insertion, thereby checking whether the hole position is within tolerance. Hole diameter inspection, however, requires a separate go / no-go gauge.

[0003] The existing technology has the following drawbacks:

[0004] Low efficiency: It requires separate detection of hole position and hole diameter, which is time-consuming and labor-intensive.

[0005] High cost: The need to purchase or manufacture multiple inspection tools increases production costs.

[0006] Limited accuracy: If the non-reference pin is too small, it may reduce the accuracy of hole position detection.

[0007] Cumbersome to operate: Frequent changes of inspection tools are required, making operation inconvenient.

[0008] Therefore, this application provides a composite gauge for hole position and diameter based on a floating non-reference pin to solve the technical problems existing in the background art. Utility Model Content

[0009] Purpose of the utility model: To overcome the shortcomings of the prior art and provide a composite inspection tool for hole position and diameter based on a floating non-reference pin. This tool can simultaneously inspect the hole position and diameter of the workpiece, thereby improving inspection efficiency, reducing costs, and ensuring inspection accuracy.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A composite gauge for hole position and diameter based on a floating non-reference pin, comprising:

[0012] Base: The base used to support and fix the fixture.

[0013] Reference pin: A reference hole used to position the workpiece.

[0014] Floating non-reference pin: Used for detecting the position and diameter of non-reference holes in a workpiece, the floating non-reference pin comprising:

[0015] Pin body: The outer diameter of the pin body is the same as the gauge size of the hole being measured, and it is used to check whether the hole diameter is qualified.

[0016] Floating mechanism: Connects the pin to the base, allowing the pin to float within a certain range to accommodate hole position deviations.

[0017] Furthermore, the floating mechanism includes:

[0018] Guide sleeve: Fixed to the base, it has an internal hole that mates with the pin, allowing the pin to slide within the hole. The inner diameter of the guide sleeve is larger than the outer diameter of the pin, creating a certain gap that allows the pin to float within a certain range.

[0019] Elastic element: Located between the pin and the guide sleeve, it provides the pin with a restoring force, ensuring that the pin returns to its initial position after testing. The elastic element can be a spring, rubber, etc.

[0020] Furthermore, the gap between the inner diameter of the guide sleeve and the outer diameter of the pin body is in the range of 0.01mm-0.1mm. (This gap range can be adjusted according to actual conditions.)

[0021] Furthermore, the elastic element is a disc spring, which is located at the bottom of the pin and contacts the bottom of the guide sleeve.

[0022] Furthermore, the substrate is also provided with a scale or indicator device to indicate the floating range of the pin, thereby determining whether the hole position deviation is within the tolerance range.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. Improved efficiency: It can detect both the position and diameter of the borehole simultaneously, saving detection time.

[0025] 2. Reduced costs: The number of inspection tools was reduced, thus lowering production costs.

[0026] 3. Improved accuracy: The floating non-reference pin can adapt to hole position deviations, ensuring detection accuracy.

[0027] 4. Easy to operate: Simple to operate and easy to use.

[0028] 5. High versatility: By replacing the pin and guide sleeve, it can be used to inspect holes of different sizes. Attached Figure Description

[0029] Figure 1 This is an overall cross-sectional view of the present invention;

[0030] Figure 2 This is a top view of the present invention.

[0031] In the diagram: 1. Base; 2. Reference pin; 3. Floating non-reference pin; 31. Pin body; 32. Guide sleeve; 33. Disc spring. Detailed Implementation

[0032] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0033] like Figure 1 As shown, this utility model includes a base 1, a reference pin 2, and a floating non-reference pin 3. The base 1 is used to support and fix the inspection fixture. The reference pin 2 is used to position the reference hole of the workpiece. The floating non-reference pin 3 is used to detect the position and diameter of the non-reference hole of the workpiece.

[0034] like Figure 2 As shown, the floating non-reference pin 3 includes a pin body 31, a guide sleeve 32, and a disc spring 33. The outer diameter of the pin body 31 is the gauge size of the hole being measured, used to check whether the hole diameter is qualified. The guide sleeve 32 is fixed on the base 1 and has a hole inside that mates with the pin body 31, allowing the pin body 31 to slide within the hole. The inner diameter of the guide sleeve 32 is larger than the outer diameter of the pin body 31, forming a certain gap, allowing the pin body 31 to float within a certain range. The disc spring 33 is located at the bottom of the pin body 31 and contacts the bottom of the guide sleeve 32, used to provide the restoring force of the pin body 31.

[0035] In use, place the workpiece on the base 1 and position the reference hole using the reference pin 2. Then, insert the floating non-reference pin 3 into the non-reference hole. If the pin 31 can be inserted smoothly, the hole diameter is acceptable. At the same time, observe the floating range of the pin 31. If the floating range is within the scale range, the hole position is acceptable.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A composite gauge for hole position and diameter based on a floating non-reference pin, comprising a base, a reference pin, and a floating non-reference pin, characterized in that: The floating non-reference pin includes a pin body and a floating mechanism. The outer diameter of the pin body is the gauge size of the hole being measured. The floating mechanism connects the pin body and the base body, allowing the pin body to float within a certain range.

2. The composite gauge for hole position and diameter according to claim 1, characterized in that: The floating mechanism includes a guide sleeve and an elastic element. The guide sleeve is fixed on the base and has a hole inside that mates with the pin. The elastic element is disposed between the pin and the guide sleeve.

3. The composite gauge for hole position and diameter according to claim 2, characterized in that: The gap between the inner diameter of the guide sleeve and the outer diameter of the pin body is in the range of 0.01mm-0.1mm.

4. The composite gauge for hole position and diameter according to claim 2, characterized in that: The elastic element is a disc spring.

5. The aperture-situated-aperture compound gauge of claim 1, wherein: The base is also provided with a scale or indicator device to indicate the floating range of the pin.

Images