Adjustable tool for rapidly detecting depth of part hole

Abstract

The utility model relates to an adjustable tool for rapidly detecting the depth of a part hole. The adjustable tool comprises a thread adjusting rod, a locking nut, a measuring base, a measuring sliding block, a measuring rod and scale marks, the thread adjusting rod and the locking nut are arranged on one side of the measuring base, and the measuring rod is arranged on the other side of the measuring base; a cavity is formed in the center of the measuring base, and a measuring sliding block is arranged in the cavity; scale marks are arranged on the measuring base. A positioning groove is formed in one end of the threaded adjusting rod; the thread adjusting rod is screwed into the locking nut and is arranged in the measuring base; the positioning groove enters the measuring slide block and is fastened with the measuring slide block through a positioning pin penetrating through the positioning hole; and the other side of the measuring slide block is fastened with the measuring rod through interference fit. The device can be rapidly replaced and adjusted according to the size requirements of aperture and hole depth, is convenient to operate, is high in detection efficiency, is accurate in measurement, only needs to replace a smooth surface measuring rod with a threaded measuring rod when the depth of a threaded hole is measured, is higher in universality, and is higher in popularization and application value.

Description

Technical Field

[0001] This utility model relates to an adjustable tool for quickly detecting the depth of holes in parts, belonging to the technical field of tools for detecting hole depth. Background Technology

[0002] Existing tools for inspecting the hole depth of small parts with holes typically use height measuring instruments or dedicated depth gauges. Height measuring instruments have low accuracy and low efficiency, while dedicated depth gauges have long design and manufacturing cycles. Hole depth inspection is a major bottleneck restricting production and delivery. Utility Model Content

[0003] The present invention aims to solve the technical problems of low accuracy and low efficiency of height measuring instruments in the prior art, and the long design and manufacturing cycle of dedicated depth gauges.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] An adjustable tool for quickly detecting the depth of holes in parts includes a thread adjustment rod, a lock nut, a measuring base, a measuring slider, a measuring rod, and graduation lines;

[0006] The threaded adjusting rod and locking nut are located on one side of the measuring base, and the measuring rod is located on the other side;

[0007] The measuring base has a cavity at its center, and a measuring slider is installed inside it;

[0008] The measuring base is equipped with scale lines;

[0009] One end of the threaded adjusting rod has a positioning groove; the threaded adjusting rod is screwed into a locking nut and positioned inside the measuring base.

[0010] The positioning groove enters the measuring slider and is fastened to the measuring slider by passing through the positioning hole with a positioning pin.

[0011] The threaded adjusting rod and the measuring slider are in a transition fit.

[0012] The locating pin and the locating hole are interference fit;

[0013] The other side of the measuring slider is fastened to the measuring rod by an interference fit.

[0014] The beneficial effects of adopting the above technical solution are:

[0015] This invention allows for quick replacement and adjustment based on hole diameter and depth requirements, making it easy to operate, highly efficient in testing, and accurate in measurement. It eliminates the need to design and manufacture dedicated depth gauges for different workpieces, reducing the cost of measuring tools. Furthermore, the reduced number of dedicated depth gauges also lowers the cost of measuring tool management. When measuring the depth of threaded holes, only the smooth measuring rod needs to be replaced with a thread measuring rod, making it highly versatile and valuable for widespread application. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] In the diagram: 1-Threaded adjusting rod, 2-Locking nut, 3-Measuring base, 4-Measuring slider, 4.1-Positioning pin, 5-Measuring rod, 6-Scale line.

[0018] Figure 2 This is a schematic diagram showing the fit between the threaded adjusting rod and the measuring slider in this utility model.

[0019] In the diagram: 1.1 - positioning groove, 4.1 - positioning pin, 4.2 - positioning hole.

[0020] Figure 3 This is a schematic diagram of zeroing before measurement in the measurement process of this utility model.

[0021] Figure 4 This is a schematic diagram illustrating the adjustment of the measuring rod length during the measurement process of this utility model. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings:

[0023] like Figure 1 As shown, an adjustable tool for quickly detecting the depth of holes in parts includes a thread adjustment rod 1, a locking nut 2, a measuring base 3, a measuring slider 4, a measuring rod 5, and a scale line 6;

[0024] The threaded adjusting rod 1 and the locking nut 2 are located on one side of the measuring base 3, and the measuring rod 5 is located on the other side. The thread on the threaded adjusting rod 1 is a common fine thread, and the thread is fitted according to H / h with zero clearance. The material is wear-resistant, and the thread adjustment accuracy is high, and it has a certain connection strength. After the position of the threaded adjusting rod 1 is determined, it can be tightened by the self-locking method of the locking nut 2.

[0025] The measuring base 3 has a cavity at its center, and a measuring slider 4 is installed inside it;

[0026] The measuring base 3 is provided with scale lines 6;

[0027] The threaded adjusting rod 1 has a positioning groove 1.1 at one end; the threaded adjusting rod 1 is screwed into the locking nut 2 and is located in the measuring base 3;

[0028] like Figure 2 As shown, the positioning groove 1.1 enters the measuring slider 4 and passes through the positioning hole 4.2 via the positioning pin 4.1, and is fastened to the measuring slider 4;

[0029] The threaded adjusting rod 1 and the measuring slider 4 are in a transition fit.

[0030] The locating pin 4.1 and the locating hole 4.2 are in an interference fit;

[0031] In the above positioning method, when the threaded adjusting rod 1 is rotated, the measuring slider 4 only moves axially with the threaded adjusting rod 1 and does not rotate.

[0032] The other side of the measuring slider 4 is fastened to the measuring rod 5 by an interference fit; the moving distance of the measuring slider 4 is determined by the alignment of the right end face with the scale line 6 (accuracy 0.5mm).

[0033] The measurement process of this utility model is as follows:

[0034] 1. Zero before measurement

[0035] By rotating the threaded adjustment rod 1, the measuring slider 4 is driven to align its right end face with the "0" mark 6, thus completing the zeroing process. Figure 3 As shown;

[0036] 2. Adjustment of measuring rod length

[0037] Based on the measured hole depth, rotate the thread adjustment rod 1 to move the measuring slider 4 to the right. By observing the position of the right end face of the measuring slider 4 corresponding to the scale line 6, determine the extension length of the measuring rod 5 and tighten the locking nut 2 to complete the positioning of the measuring slider 4. At this time, the extension length of the measuring rod 5 is the reference for measuring the hole depth.

[0038] like Figure 4 As shown, if the right end face of the measuring slider 4 is aligned with the "5" mark 6, then the extension length "L" of the measuring rod 5 is 5mm. It should be noted that during the actual measurement of hole depth, first select the corresponding diameter measuring rod depth gauge according to the hole diameter, then adjust the extension length of the measuring rod according to the upper and lower limits of the hole depth, and then perform the measurement.

Claims

1. An adjustable tool for rapidly detecting the depth of holes in parts, characterized in that: It includes threaded adjusting rod (1), locking nut (2), measurement base (3), measurement slider (4), measurement rod (5) and scale line (6); The threaded adjusting rod (1) and locking nut (2) are arranged on one side of the measurement base (3), and the other side is provided with the measurement rod (5); The measurement base (3) is provided with a cavity in the center, and the measurement slider (4) is arranged in the cavity; The measurement base (3) is provided with a scale line (6); One end of the threaded adjusting rod (1) is provided with a positioning groove (1.1); the threaded adjusting rod (1) is screwed into the locking nut (2) arranged in the measurement base (3); The positioning groove (1.1) enters the measurement slider (4) and passes through the positioning pin (4.1) through the positioning hole (4.2), and is fastened with the measurement slider (4); The threaded adjusting rod (1) and the measurement slider (4) are in transition fit; The positioning pin (4.1) and the positioning hole (4.2) are in interference fit; The other side of the measurement slider (4) is fastened with the measurement rod (5) through interference fit.

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