High-efficiency and high-precision multifunctional hole center distance testing fixture

Abstract

The utility model discloses a multifunctional hole center distance testing fixture with high efficiency and high precision, which comprises a fixed main scale and a vernier slide scale sleeved on the fixed main scale, a first measuring jaw and a second measuring jaw are symmetrically arranged at the end part of the fixed main scale, the first measuring jaw is an external diameter measuring jaw, the second measuring jaw is provided with a spring structure, and the vernier slide scale is provided with a plurality of holes. A spring structure is arranged on the vernier slide ruler, the spring structure is connected with round hole fixing pieces, a third measuring jaw and a fourth measuring jaw are symmetrically arranged on the vernier slide ruler, the end parts of the third measuring jaw and the fourth measuring jaw are connected with round hole fixing pieces, and the outer end parts of the round hole fixing pieces are provided with round table parts with large inner ends and small outer ends. According to the utility model, the circular hole fixing piece is arranged, and the circular truncated cone part with the large inner end and the small outer end is arranged at the outer end part of the circular hole fixing piece, so that the circular truncated cone structure can be well attached to the hole site and quickly attached to the peripheral side of the hole site, concentric alignment is realized, the effect of quickly measuring the hole center distance is achieved, repeated conversion is not needed, and the measurement efficiency and accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vernier calipers, in particular to a high-efficiency and high-precision multifunctional hole center distance measuring tool. Background Art

[0002] Traditional measuring tools can only measure single points or planes, and can only measure physical positions. For hole sizes, multiple measurements are required to determine whether the hole sizes are qualified. For measuring the center distance of virtual point holes, multiple points need to be measured and converted. This measurement method is inconvenient, complex, and the probability of human error increases. Moreover, during the inspection process of products, the measurement frequency is high, the efficiency is low, and the error is large. The size of a hole and its center distance need to be measured and converted multiple times, which has a certain adverse impact on the actual continuous production process. Content of the Utility Model

[0003] The purpose of the utility model is to provide a high-efficiency and high-precision multifunctional hole center distance measuring tool, which has the advantages of simple structure and simple operation, and solves the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A high-efficiency and high-precision multifunctional hole center distance measuring tool, including a fixed main scale and a vernier slide scale sleeved on the fixed main scale. First jaws and second jaws are symmetrically arranged at the end of the fixed main scale. Among them, the first jaw is an outer diameter jaw, and a spring structure is arranged on the second jaw, and the spring structure is connected with a round hole fixing part.

[0005] Third jaws and fourth jaws are symmetrically arranged on the vernier slide scale. Round hole fixing parts are connected to the ends of the third jaws and the fourth jaws. Among them, the first jaw and the third jaw are on the same side and are used in cooperation; the second jaw and the fourth jaw are on the same side and are used in cooperation.

[0006] The outer end of the round hole fixing part is provided with a frustum part with a large inner end and a small outer end.

[0007] Preferably, a plurality of hole distance measuring parts with different diameters are arranged on the round hole fixing part.

[0008] Preferably, a depth scale is also slidably connected to the fixed main scale.

[0009] Preferably, a locking screw is screwed on the vernier slide scale, and the locking screw passes through the vernier slide scale and abuts against the fixed main scale.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model achieves the effect of quickly measuring the hole center distance by setting a round hole fixing part, with a frustum-shaped part with a larger inner end and a smaller outer end at the outer end of the round hole fixing part. The frustum structure can fit well with the hole position, quickly fit with the periphery of the hole position, and achieve concentric alignment, without the need for multiple conversions, improving the measurement efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural view of the utility model;

[0013] Figure 2 is a schematic structural view of the vernier caliper of the utility model;

[0014] Figure 3 is Figure 2 a partial enlarged view of part A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0016] Please refer to Figures 1 to 3 , an embodiment provided by the present utility model: a high-efficiency and high-precision multifunctional hole center distance measuring tool, including a fixed main scale 10 and a vernier slide 20 sleeved on the fixed main scale. The fixed main scale 10 and the vernier slide 20 are used in cooperation to measure the hole center distance. First jaws 1 and second jaws 2 are symmetrically arranged at the end of the fixed main scale 10. Among them, the first jaw 1 is an outer diameter jaw, and a spring structure 5 is arranged on the second jaw 2. The spring structure 5 is connected with a round hole fixing part 6;

[0017] The spring structure 5 of this embodiment includes a mounting part on the second jaw 2. A guiding groove with the same shape as the round hole fixing part 6 is arranged in the mounting part. A spring is arranged in the guiding groove. One end of the spring is connected to the bottom of the guiding groove, and the other end of the spring is connected to the corresponding round hole fixing part 6.

[0018] Third jaws 3 and fourth jaws 4 are symmetrically arranged on the vernier slide 20. Round hole fixing parts 6 are connected to the ends of both the third jaw 3 and the fourth jaw 4. A frustum-shaped part 7 with a larger inner end and a smaller outer end is arranged at the outer end of the round hole fixing part 6; A plurality of hole distance measuring parts 8 with different diameters are arranged on the round hole fixing part 6; The frustum structure can fit well with the hole position, quickly fit with the periphery of the hole position, and achieve concentric alignment, achieving the effect of quickly measuring the hole center distance, without the need for multiple conversions, improving the measurement efficiency and accuracy.

[0019] Multiple hole pitch measuring parts 8 can be adapted to the hole positions, further improving the measurement accuracy; and in this embodiment, both ends of the hole pitch measuring part 8 with the largest diameter are tapered.

[0020] After the hole pitch measuring part 8 is sleeved with the measuring round hole, it can quickly detect whether the aperture size is qualified. For a normal qualified hole, when the measuring jaws are inserted into the hole and fit, it is qualified for the hole pitch. If the hole is too small and unqualified, the round hole fits with the tapered transition area at the bottom of the hole pitch measuring part 8. If the hole is too large and unqualified, the measuring jaws will pass through the hole or not fit. At the same time, setting multiple hole pitch measuring parts 8 can detect the qualification of different aperture sizes; further, hole pitch measuring parts 8 with different diameter values can be set on the second measuring jaw, the third measuring jaw and the fourth measuring jaw to adapt to the size detection of more apertures.

[0021] Among them, the first measuring jaw 1 and the third measuring jaw 3 are on the same side and are used in cooperation; at one end of the product plane, the first measuring jaw 1 is used to contact its flat end face, and the third measuring jaw 3 is inserted into the hole position, and the circumferential end face of the hole position is fully attached to the frustum part 7. The distance between the hole center and the product end face can be quickly measured according to the scale readings of the fixed main scale 10 and the vernier slide scale 20.

[0022] The second measuring jaw 2 and the fourth measuring jaw 4 are on the same side and are used in cooperation; the second measuring jaw 2 and the fourth measuring jaw 4 are respectively inserted into different hole positions, and the circumferential end face of the hole position is fully attached to the frustum part 7. The distance between the hole centers of the two hole positions can be quickly measured according to the scale readings of the fixed main scale 10 and the vernier slide scale 20; further, the length of the second measuring jaw 2 can be changed through the spring structure 5. The second measuring jaw 2 and the fourth measuring jaw 4 are used in cooperation to measure, and the length of the second measuring jaw 2 is changed through the spring structure 5 to realize the measurement of the hole center distance of the hole positions on different horizontal planes.

[0023] A depth gauge 30 is also slidably connected to the fixed main scale 10. The depth gauge 30 can be used to measure the depth, improving the functionality of the hole center distance gauge.

[0024] A locking screw 9 is screwed on the vernier slide scale 20. The locking screw 9 passes through the vernier slide scale 20 and abuts against the fixed main scale 10. By rotating the locking screw 9, the bottom of the locking screw 9 can be made to abut and fit against the fixed main scale 10 or to disengage from each other. When the bottom of the locking screw 9 abuts and fits against the fixed main scale 10, the fixed main scale 10 and the vernier slide scale 20 are fixed in position, facilitating the user to take out the readings.

[0025] Further, the frustum part 7 in this embodiment can be replaced with a conical part (not shown in the figure). Both are connected to the hole position by the circumferential end face to align the hole centers and quickly measure the hole center distance.

[0026] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A multifunctional hole center distance gauge with high efficiency and high precision, comprising a fixed main scale and a vernier slide set on the fixed main scale, characterized in that: The first measuring jaw and the second measuring jaw are symmetrically arranged at the end of the fixed main ruler, wherein the first measuring jaw is an outer diameter measuring jaw, and the second measuring jaw is provided with a spring structure, and the spring structure is connected with a round hole fixing piece; The vernier slide is symmetrically provided with a third measuring jaw and a fourth measuring jaw, and the ends of the third measuring jaw and the fourth measuring jaw are both connected with a round hole fixing piece; wherein the first measuring jaw and the third measuring jaw are located on the same side and the two are used in conjunction with each other; the second measuring jaw and the fourth measuring jaw are located on the same side and the two are used in conjunction with each other; The outer end of the round hole fixing piece is provided with a truncated cone portion with a larger inner end and a smaller outer end.

2. According to claim 1, a high-efficiency and high-precision multifunctional hole center distance gauge is characterized in that: The circular hole fixing piece is provided with a plurality of hole distance measuring parts, and the diameters of the plurality of hole distance measuring parts are different.

3. The high-efficiency and high-precision multifunctional hole center distance gauge according to claim 1, characterized in that: The fixed main ruler is also slidably connected with a depth ruler.

4. The high-efficiency and high-precision multifunctional hole center distance gauge according to claim 1, characterized in that: The vernier slide is screwed with a locking screw, which penetrates the vernier slide and contacts the fixed main scale.

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