Aperture and hole site measuring device

Abstract

A hole diameter and hole site measuring device comprises a main ruler, an inner diameter measuring claw, a laser distance measuring device and a straight side measuring claw, the main ruler comprises a fixed seat, a movable measuring seat and a ruler body, and the fixed seat is installed at the top end of the ruler body; the movable measuring seat horizontally moves on the ruler body for measurement; the inner diameter measuring claw is arranged on the fixed seat or the movable measuring seat and is used for measuring the diameter of a measured hole; the laser distance measuring device is installed on the fixed seat or the movable measuring seat and keeps horizontal with the inner diameter measuring claw. The straight edge measuring claw is movably installed on the inner diameter measuring claw and used for measuring the distance between a hole and a straight edge. The hole diameter and hole pitch measuring tool of the utility model can simultaneously, rapidly and accurately measure the hole diameter and hole site of the hole diameter and the hole pitch, and integrates the measuring tools of a gauge and a digital display caliper.

Description

Technical Field

[0001] The utility model belongs to the technical field of measuring devices, and particularly relates to a device for measuring hole diameters and hole positions. Background Art

[0002] The existing conventional detection methods for hole diameters and hole center distances are to measure with a caliper and a plug gauge.

[0003] Since some workpieces have high precision requirements for hole diameters and hole position dimensions, if there are deviations in the hole diameters and hole position dimensions that exceed the tolerance range, it may cause the mating workpieces to be unable to be installed, resulting in the phenomenon of material waste and an increase in costs. The existing methods for measuring hole diameters are either calipers or plug gauges, and the measurement of hole position dimensions mainly relies on calipers. These measurement methods cannot give accurate detection results for workpieces with high precision requirements. In addition, these inspection methods are relatively time-consuming.

[0004] The existing methods for measuring hole diameters are mainly two types. One is to directly measure the diameter with a caliper, and the other is to directly measure with a plug gauge. In these two measurement methods, the human factor plays a great role and cannot truly and objectively reflect the actual size.

[0005] The existing method for measuring the hole spacing is to directly measure the inner diameter or outer diameter of two holes with a caliper, then measure the diameter of the hole, and finally add or subtract the diameter from the previously measured value. This measurement method has certain errors, cannot meet the measurement requirements with very high precision, and the process is cumbersome.

[0006] The existing method for measuring the hole position is to use a caliper, with one end clamped at the center point or the boundary, and the other end clamped inside or outside the hole, then measure the hole diameter, and add or subtract the hole radius to obtain the hole position dimension. This measurement method requires repeated measurements, resulting in a large cumulative error. In addition, it is also affected by the human factor of the measurer, so the accuracy is not high, and there is no tool that can directly measure both the hole diameter and the hole position. Summary of the Utility Model

[0007] The purpose of the utility model is to solve the problems in the existing technology, and a device for measuring hole diameters and hole positions is proposed. The hole diameter and hole spacing measuring tool of the utility model can simultaneously and quickly and accurately measure the hole diameters and hole positions of the hole diameter and the hole distance, and is a measuring tool that combines a gauge and a digital caliper.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions.

[0009] A device for measuring hole diameters and hole positions includes a main scale, inner diameter measuring claws, a laser ranging device, and straight-edge measuring claws, wherein,

[0010] The main scale includes a fixed seat, a movable measuring seat, and a scale body, and the fixed seat is installed at the top of the scale body;

[0011] The movable measuring seat moves horizontally on the scale body for measurement;

[0012] The inner diameter measuring jaws are installed on the fixed seat or the movable measuring seat and are used to measure the diameter of the hole to be measured; including, the inner diameter measuring jaws include a jaw height adjustment knob, and by adjusting the jaw height adjustment knob, the inner diameter measuring jaws are completely fitted with the hole and then the hole pitch and hole diameter are measured;

[0013] The laser ranging device is installed on the fixed seat or the movable measuring seat and is kept horizontal with the inner diameter measuring jaws;

[0014] The straight-edge measuring jaws are movably installed on the inner diameter measuring jaws and are used to measure the distance between the hole and the straight edge.

[0015] Further, the outer shape of the inner diameter measuring jaws is conical, and the surface has diameter scale lines.

[0016] Further, the laser ranging device converts the depth of the measured hole diameter into the inner diameter of the measured hole by measuring the inner diameter measuring jaws.

[0017] Further, an inner diameter display screen is further included, and the inner diameter display screen is installed on the fixed seat and is used to display the measured value of the diameter of the hole to be measured.

[0018] Further, a hole pitch display screen is further included, and the hole pitch display screen is installed on the movable measuring seat and is used to display the measured value of the hole pitch to be measured.

[0019] Further, the movable measuring seat is equipped with a rack, and when moving horizontally on the scale body, the circular grid plate is driven to rotate by the operation of the rack, and the measured dimension is displayed on the hole pitch display screen.

[0020] Further, the movable measuring seat further includes a counter for counting.

[0021] Further, a fixing knob is further included, and the fixing knob is installed on the movable measuring seat and is used to fix the position of the movable measuring seat on the scale body.

[0022] Furthermore, when measuring the hole pitch, both the inner diameter measuring jaws and the straight-edge measuring jaws adopt conical jaws, and when measuring one end is a hole and the other end is a straight edge, one side of the inner diameter measuring jaws and the straight-edge measuring jaws adopts conical jaws and the other side adopts ordinary jaws.

[0023] A device for measuring hole diameter and hole position of the present utility model has the following beneficial effects:

[0024] 1. It is convenient to carry and can complete the measurement of hole diameter and hole pitch at the same time;

[0025] 2. An aperture and hole position measuring tool that can quickly and accurately measure the aperture and hole pitch simultaneously, integrating the functions of a gauge and a digital caliper, and with an improved structure;

[0026] 3. It can measure the aperture of a round hole through a conical measuring jaw and a matching laser ranging device, and measure the center distance of round holes through a digital caliper and a measuring jaw.

[0027] Other features and advantages of the present utility model will be described in the following specification, and partly become apparent from the specification, or can be understood by implementing the present utility model. Brief Description of the Drawings

[0028] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0029] Figure 1 is a schematic diagram of an aperture and hole position measuring device of the present utility model;

[0030] Figure 2 is a schematic diagram of a hole and straight-edge inner diameter and spacing measuring device of the present utility model;

[0031] Figure 3 is a schematic diagram of a replaceable measuring jaw of the present utility model;

[0032] Figure 4 is a schematic diagram of a workpiece of the present utility model.

[0033] Illustration:

[0034] 1 - Main scale, 2 - Inner diameter measuring jaw, 3 - Laser ranging device;

[0035] 4 - Inner diameter display screen, 5 - Hole pitch display screen, 6 - Fixed knob;

[0036] 7 - Straight-edge measuring jaw, 8 - Fixed seat, 9 - Movable measuring seat; 10 - Scale body, 11 - Measuring jaw height adjustment knob, 12 - Scale line. Detailed Embodiment

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the following further details the present utility model with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0038] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined. The meaning of "several" is one or more, unless otherwise specifically defined.

[0040] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present utility model.

[0041] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it 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 can be the communication inside two elements or the interaction relationship between two elements. 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.

[0042] Embodiment 1

[0043] Figure 1 As a schematic diagram of the aperture and hole position measuring device according to the present utility model, as Figure 1 shown, the aperture and hole position measuring device of the present utility model includes: a main scale 1, an inner diameter measuring claw 2, a laser ranging device 3, an inner diameter display screen 4, a hole pitch display screen 5, a fixing knob 6, and a straight edge measuring claw 7.

[0044] The main scale 1 includes three parts: a fixed base 8, a movable measuring base 9, and a scale body 10. Among them, the fixed base 8 is located at the top of the scale body 10 and mainly functions to fix the measuring jaws; the movable measuring base 9 can move horizontally freely on the scale body 10 and is equipped with a high-precision rack on the scale body 10. The rotation of the rack drives the circular grid plate to rotate, and the measured dimension is displayed numerically on the hole pitch display screen 5 through a counter and a display. Its principle is the same as that of a digital caliper.

[0045] The replaceable inner diameter measuring jaw 2 has a conical shape on the outside and is marked with diameter scale lines on the surface. It is installed on the fixed base 8 or the movable measuring base 9 of the main scale 1 and is used to measure the diameter of the measured hole.

[0046] The laser ranging device 3 is installed on the fixed base 8 or the movable measuring base 9 of the main scale 1 and is kept horizontal with the replaceable inner diameter measuring jaw 2. It is mainly used to convert the depth of the measured hole diameter through the measurement of the replaceable inner diameter measuring jaw 2 into the inner diameter of the measured hole.

[0047] The inner diameter display screen 4 is installed on the fixed base 8 of the main scale 1 and is used to display the measured value of the diameter of the measured hole.

[0048] The hole pitch display screen 5 is installed on the movable measuring base 9 of the main scale 1 and is used to display the measured value of the hole pitch of the measured hole.

[0049] The fixing knob 6 is installed on the movable measuring base 9 of the main scale 1 and is used to fix the position of the movable measuring base 9 to ensure the accuracy of the measured value.

[0050] The straight-edge measuring jaw 7 includes a replaceable inner diameter measuring jaw 2 that can be replaceably installed on the movable measuring base 9 of the main scale 1 and is used to measure the distance between the hole and the straight edge.

[0051] In this embodiment, as Figure 3 shown, it also includes a jaw height adjustment knob 11 and a scale line 12. The replaceable jaws are conical structures with scale marks on the surface for measuring the hole diameters in the ranges of M1 - M6 (0.75 mm - 5 mm), M4 - M10 (3.3 mm - 8.5 mm), M8 - M16 (6.8 mm - 14 mm), and M10 - M20 (8.5 mm - 17.5 mm). Select the corresponding jaws according to the holes of different specification ranges to be measured; during measurement, adjust the jaw height knob to make the jaws fit the hole completely and then measure the hole pitch and hole diameter.

[0052] In this embodiment, the jaws are conical, and the cone diameters corresponding to different depths on the cone surface are different, so the hole diameter is measured through different depths.

[0053] In this embodiment, when measuring the hole pitch, both jaws are conical for measurement. When measuring one end is a hole and the other end is a straight edge, one jaw is a conical jaw and the other is a common jaw. As Figure 4As shown in the figure, A is the hole spacing between the measurement holes, and B is the distance between the measurement hole and the straight edge.

[0054] The working process of the present utility model is as follows:

[0055] When measuring the hole spacing between two holes, first install the movable measuring claws on the movable measuring seat 9 of the measuring device; then gently fit the two inner diameter measuring claws and press the zero key. At this time, the value displayed on the hole spacing display screen 5 of the measuring device is zero. When calculating, the center distance between the two inner diameter measuring claws 2 should be included, and 20 mm, the center distance of the inner diameter measuring claws 2, should be added to the measured value. Start the measurement, place the two inner diameter measuring claws 2 of the measuring device vertically above the hole to be measured until they cannot sink any further; at this time, read the scale value of the inner diameter measuring claws 2 or turn on the laser ranging device 3, and read the inner diameter value of the hole to be measured through the inner diameter display screen 4; by calculating the difference between the value displayed on the hole spacing display screen 5 and the value displayed on the inner diameter display screen, the hole spacing measurement value can be obtained.

[0056] In this embodiment, when measuring the distance between the measurement hole and the straight edge, the same method is used as above. When calculating, the distance between the center of the inner diameter measuring claw 2 and the straight edge measuring claw 7 should be included, and 10 mm should be added to the measured value.

[0057] In this embodiment, the hole spacing = the value displayed on the hole spacing display screen 5 + 20 mm - the value displayed on the inner diameter display screen 4; the distance between the hole and the straight edge = the value displayed on the hole spacing display screen 5 + 10 mm - the value displayed on the inner diameter display screen 4 / 2.

[0058] The present utility model provides a tool for measuring the aperture and hole spacing, which can quickly and accurately measure the aperture and hole position of the aperture and hole spacing at the same time. It is a measuring tool that combines a gauge and a digital caliper, and has an improved structure. It can measure the aperture of a circular hole through a conical measuring claw and a matching laser ranging device, and measure the center distance of a circular hole through a digital caliper and a measuring claw.

[0059] Those of ordinary skill in the art can understand that the above description is only a preferred embodiment of the present utility model and is not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hole diameter and hole position measuring device, characterized in that: It includes a main ruler, inner diameter measuring claws, a laser distance measuring device and a straight edge measuring claw, among which: The main ruler comprises a fixed seat, a movable measuring seat and a ruler body, wherein the fixed seat is installed at the top end of the ruler body; The movable measuring seat moves horizontally on the ruler body to perform measurement; The inner diameter measuring claw is installed on the fixed seat or the movable measuring seat, and is used to measure the diameter of the measured hole; the inner diameter measuring claw includes a claw height adjustment knob, and the inner diameter measuring claw is adjusted to fully fit the hole, and then the hole spacing and hole diameter are measured; The laser distance measuring device is installed on the fixed seat or the movable measuring seat and is kept horizontal with the inner diameter measuring claw; The straight edge measuring claw is movably mounted on the inner diameter measuring claw and is used for measuring the distance between the hole and the straight edge.

2. The hole diameter and hole position measuring device according to claim 1, characterized in that: The inner diameter measuring claw is in a conical shape, and has diameter scale lines on its surface.

3. The hole diameter and hole position measuring device according to claim 1, characterized in that: The laser distance measuring device converts the measured hole depth into the measured hole inner diameter by measuring the inner diameter measuring claw.

4. The hole diameter and hole position measuring device according to claim 1, characterized in that: It also includes an inner diameter display screen, which is installed on the fixing seat and is used to display the measured value of the measured hole diameter.

5. The hole diameter and hole position measuring device according to claim 4, characterized in that: It also includes a hole spacing display screen, which is installed on the movable measuring seat and is used to display the measured value of the measured hole spacing.

6. The hole diameter and hole position measuring device according to claim 5, characterized in that: The movable measuring seat is equipped with a rack, and when the ruler moves horizontally, the circular grid piece is driven to rotate by the operation of the rack, and the measured size is displayed on the hole spacing display screen.

7. The hole diameter and hole position measuring device according to claim 6, characterized in that: The movable measuring seat also includes a counter for counting.

8. The hole diameter and hole position measuring device according to claim 1, characterized in that: It also includes a fixed knob, which is installed on the movable measuring seat and is used to fix the position of the movable measuring seat on the ruler.

9. The hole diameter and hole position measuring device according to claim 1, characterized in that: When measuring the hole spacing, the inner diameter measuring jaws and the straight edge measuring jaws both use conical measuring jaws. When measuring a hole at one end and a straight edge at the other end, the inner diameter measuring jaws and the straight edge measuring jaws use conical measuring jaws on one side and ordinary measuring jaws on the other side.

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