Detection tool for detecting depth of hole
By designing a test tool composed of a reference sleeve, a reference block, a spring and a detection pin, the problems of low hole depth detection efficiency and low accuracy are solved, and fast and accurate hole depth detection is achieved, which improves detection efficiency and accuracy and reduces customer complaints.
Patent Information
- Application Number
- CN202422501338.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-16
AI Technical Summary
The mesoporous depth detection efficiency and low accuracy in the prior art, especially the V-shaped bottom hole and countersunk hole are difficult to accurately detect, and the depth scale cannot meet the detection requirements of different apertures.
A test tool for detecting the depth of the hole is designed, including a reference sleeve, a reference block, a spring and a detection pin. The detection pin is inserted into the hole to be measured, and the bonding of the reference sleeve and the hole to be measured and the detection of the pass-gauge can be achieved quickly and accurately.
It realizes rapid detection of hole depth, improves detection accuracy, reduces customer complaints caused by dimensional deviation, improves detection efficiency and accuracy, and ensures product quality.
Smart Images
Figure CN223138565U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hole depth gauges, and particularly relates to a gauge for detecting the depth of holes. Background Art
[0002] At present, there are many products with extremely high dimensional requirements for the depth of holes. Currently, most use depth gauges for detection, but there are several drawbacks to using depth gauges: First, the detection efficiency is low; Second, some holes have a V-shaped bottom, and the data detected by the depth gauge for this type of hole has a large error; Third, when the hole is a countersunk hole and the difference between the two hole diameters is small, the depth gauge cannot detect. Therefore, we have developed a gauge for detecting the depth of holes. Content of the Utility Model
[0003] The main purpose of the utility model is to provide a gauge for detecting the depth of holes, which can effectively solve the problems in the background art.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0005] A gauge for detecting the depth of holes, including a reference sleeve, a reference block is inserted and movably connected to the upper end of the reference sleeve, a detection pin is inserted and movably connected to both the reference block and the reference sleeve, and a spring is sleeved on the outer surface of the detection pin.
[0006] Preferably, the detection pin includes an upper pin part, a lower pin part is arranged below the upper pin part, a convex block is fixedly connected to the outer surface of the upper pin part, the lower pin part is located below the convex block, and both the outer periphery of the upper end and the outer periphery of the lower end of the convex block are arc surface structures.
[0007] Preferably, the reference sleeve is of an internally hollow structure, and a groove is opened in the upper part of the inner wall of the reference sleeve.
[0008] Preferably, the reference block is of a structure with a wider upper part and a narrower lower part, a protruding part is arranged below the reference block, and both the upper part and the lower part of the outer surface of the protruding part are chamfered structures.
[0009] Preferably, the protruding part on the reference block is located in the groove.
[0010] Preferably, the convex block is located inside the reference sleeve, and the spring is located above the convex block.
[0011] Preferably, the lower pin part extends to the lower end of the reference sleeve.
[0012] The utility model has the following beneficial effects:
[0013] In this utility model, the entire inspection tool consists of a reference sleeve, a reference block, a spring, and a detection pin. The part of the lower pin portion extending out of the reference sleeve is the theoretical depth of the hole. The diameter of the end of the detection pin is the minimum diameter of the hole. The tail of the detection pin is matched with the reference block. The detection pin is installed in the reference sleeve, and the fit clearance is H7 / r6. During inspection, the detection pin is inserted into the hole to be measured, and the reference sleeve is pressed downward by hand. When the lower surface of the reference sleeve fits with the upper surface of the hole to be measured, a go-no-go gauge is used to detect the detection between the tail of the detection pin and the reference block. If the go gauge passes and the no-go gauge does not pass, the hole depth is qualified. Thus, the rapid detection of the hole depth is achieved, the detection accuracy of the hole depth is improved, and the customer complaints about related dimensions are reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of an inspection tool for detecting the depth of a hole according to this utility model;
[0015] Figure 2 It is a schematic cross-sectional structure diagram of the reference block of an inspection tool for detecting the depth of a hole according to this utility model;
[0016] Figure 3 It is a schematic cross-sectional structure diagram of the reference sleeve of an inspection tool for detecting the depth of a hole according to this utility model;
[0017] Figure 4 It is a schematic diagram of the overall structure of the detection pin of an inspection tool for detecting the depth of a hole according to this utility model.
[0018] In the figure: 1, reference sleeve; 2, reference block; 3, spring; 4, detection pin; 11, groove; 21, protruding part; 41, upper pin portion; 42, convex block; 43, lower pin portion. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] In order to make the technical means, creative features, achieved purposes and functions of this utility model easy to understand, the following further elaborates this utility model in combination with specific embodiments.
[0020] In the description of this utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution:
[0023] A tool for detecting the depth of a hole, comprising a reference sleeve 1, a reference block 2 is movably connected through the upper end of the reference sleeve 1 in an inserted manner, a detection pin 4 is movably connected through the reference block 2 and the reference sleeve 1 in an inserted manner, and a spring 3 is sleeved on the outer surface of the detection pin 4.
[0024] In this embodiment, the detection pin 4 includes an upper pin part 41, a lower pin part 43 is arranged below the upper pin part 41, a convex block 42 is fixedly connected to the outer surface of the upper pin part 41, the lower pin part 43 is located below the convex block 42, and the outer peripheries of the upper end and the lower end of the convex block 42 are both arc surface structures; the reference sleeve 1 is a hollow structure inside, and a groove 11 is opened in the upper part of the inner wall of the reference sleeve 1; the reference block 2 is a structure with a wider upper part and a narrower lower part, a protrusion 21 is arranged below the reference block 2, and the outer surfaces of the upper part and the lower part of the outer surface of the protrusion 21 are both chamfered structures; the protrusion 21 on the reference block 2 is located in the groove 11; the convex block 42 is located inside the reference sleeve 1, and the spring 3 is located above the convex block 42; the lower pin part 43 extends to the lower end of the reference sleeve 1.
[0025] It should be noted that the present utility model describes a tool for detecting the depth of a hole. The whole tool is composed of a reference sleeve 1, a reference block 2, a spring 3 and a detection pin 4. The part of the lower pin part 43 extending out of the reference sleeve 1 is the theoretical depth of the hole. The end diameter of the detection pin 4 is the minimum diameter of the hole. The tail of the detection pin 4 cooperates with the reference block 2. The detection pin 4 is installed in the reference sleeve 1, and the fit clearance is H7 / r6. During detection, the detection pin 4 is inserted into the hole to be measured, and the reference sleeve 1 is pressed downward by hand. When the lower surface of the reference sleeve 1 fits with the upper surface of the hole to be measured, a go-no-go gauge is used to detect the detection between the tail of the detection pin 4 and the reference block 2. If the go gauge passes and the no-go gauge does not pass, the hole depth is qualified. Thus, the rapid detection of the hole depth is realized, and the leap of the high efficiency and precision of the hole depth detection is also realized. It not only greatly improves the efficiency and precision of the hole depth detection, but also effectively reduces customer complaints caused by dimensional deviations, providing a solid guarantee for product quality control.
[0026] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A fixture for detecting the depth of a hole, comprising a reference sleeve (1), characterized in that: A reference sleeve (1) has a reference block (2) inserted and movably connected to its upper end. The reference block (2) and the reference sleeve (1) are jointly inserted and movably connected to a detection pin (4), and a spring (3) is sleeved on the outer surface of the detection pin (4). The detection pin (4) includes an upper pin part (41). A lower pin part (43) is arranged below the upper pin part (41). A convex block (42) is fixedly connected to the outer surface of the upper pin part (41). The lower pin part (43) is located below the convex block (42). The outer circumferences of the upper end and the lower end of the convex block (42) are both arc surface structures.
2. The gauge for detecting the depth of a hole according to claim 1, characterized in that: The reference sleeve (1) has a hollow internal structure, and a groove (11) is formed in the upper part of the inner wall of the reference sleeve (1).
3. The inspection tool for detecting the depth of a hole according to claim 1, characterized in that: The reference block (2) has an upper-wide and lower-narrow structure. A protruding part (21) is arranged below the reference block (2). The upper part and the lower part of the outer surface of the protruding part (21) are both chamfered structures.
4. A fixture for detecting the depth of a hole according to claim 1, characterized in that: The protruding part (21) on the reference block (2) is located in the groove (11).
5. The inspection tool for detecting the depth of a hole according to claim 1, characterized in that: The convex block (42) is located inside the reference sleeve (1), and the spring (3) is located above the convex block (42).
6. The inspection tool for detecting the depth of a hole according to claim 1, characterized in that: The lower pin part (43) extends to the lower end of the reference sleeve (1).