Lever type dial indicator measuring mechanism

Abstract

The utility model provides a lever-type dial indicator measuring mechanism, relates to the technical field of measuring tools, and aims to solve the technical problems that in the prior art, when a surface to be measured is located in a product and a dial indicator is easy to interfere with other structures, the position tolerance of the surface is difficult to measure by using the dial indicator, and the use is relatively inconvenient. A lever type dial indicator measuring mechanism comprises a first base and a second base, the upper end of the first base is provided with a first inclined plane, the upper end of the second base is provided with a second inclined plane parallel to the first inclined plane, the first inclined plane and the second inclined plane are both in a left-low right-high shape, the first inclined plane is connected with a dial indicator, and the second inclined plane is rotatably connected with a connecting rod. The dial indicator comprises a first measuring head, the axis of the first measuring head is perpendicular to the first slope, the right portion of the upper end face of the connecting rod is connected with a second measuring head, the first measuring head abuts against the left portion of the upper surface of the connecting rod, and the distance between the abutting position of the first measuring head and the connecting rod and the rotating axis of the connecting rod is equal to the distance between the second measuring head and the rotating axis of the connecting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring tools, in particular to a lever type dial indicator measuring mechanism. Background Art

[0002] The dial indicator is a universal length measuring tool made of a precision rack and pinion mechanism. It is usually composed of a probe, a measuring rod, a shockproof spring, a rack, a gear, a hairspring, a round dial and a pointer. The dial indicator can be used to measure the size and position tolerance of a workpiece. In normal use, first adjust the dial indicator to zero using the zero adjustment seat, and then place the probe of the dial indicator against the surface to be measured. However, in some application scenarios, such as when the surface to be measured is located inside the product and the dial indicator is prone to interfere with other structures, it is difficult to use the dial indicator to measure the position tolerance of the surface, making it inconvenient to use. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a lever-type dial indicator measuring mechanism to solve the technical problem in the prior art that when the surface to be measured is located inside the product and the dial indicator is prone to interfere with other structures, it is difficult to use the dial indicator to measure the position tolerance of the surface, resulting in inconvenience in use.

[0004] In order to solve the above technical problems, the utility model provides a lever-type dial indicator measuring mechanism, including a first base and a second base which are split and distributed left and right. A first inclined plane is provided on the upper end of the first base, and a second inclined plane parallel to the first inclined plane is provided on the upper end of the second base. The first inclined plane and the second inclined plane are both lower on the left and higher on the right. The first inclined plane is connected to a dial indicator, and a connecting rod is rotatably connected to the second inclined plane. The dial indicator includes a first probe, the axis of the first probe is perpendicular to the first inclined plane, and the right part of the upper end face of the connecting rod is connected to the second probe. The first probe is abutted against the left part of the upper surface of the connecting rod, and the distance between the position where the first probe and the connecting rod are abutted and the rotation axis center distance of the connecting rod is equal to the rotation axis center distance between the second probe and the connecting rod. In the initial state, the connecting rod is arranged parallel to the second inclined plane.

[0005] After adopting the above structure, the utility model has the following advantages: before measuring the position tolerance, the dial indicator is first adjusted to zero using the zeroing seat, when the connecting rod is in the initial state, the dial indicator reading is exactly zero when the first probe is against the connecting rod, the connecting rod can be extended into the interior of the product, and after the connecting rod is deflected, the second probe is against the point to be measured, the dial indicator is fixed on the first base, and the first probe measures the deflection of the left part of the connecting rod. Since the position where the first probe is against the connecting rod and the distance between the rotation axis of the connecting rod are equal to the distance between the second probe and the rotation axis of the connecting rod, the deflection measured by the first probe is the deflection at the second probe, so that the position tolerance inside the product can be measured from the outside, which is convenient to use; and due to the existence of the first inclined surface and the second inclined surface, the connecting rod in the initial state is also in a state of low left and high right, and the dial indicator is also in an inclined state. For some usage scenarios limited by height space, the inclined dial indicator is also easier to place in these spaces, making it more convenient to use.

[0006] As an improvement, a connecting seat is detachably connected to the second inclined surface, and the connecting rod is rotatably connected to the connecting seat; with this structure, the connecting rod is connected to the second inclined surface of the second base through the connecting seat, so that the second base of different sizes can be replaced according to different usage scenarios, which is more convenient to use.

[0007] As an improvement, the connecting seat includes a base plate, a connecting shaft and two connecting plates. The base plate is detachably connected to the second inclined surface. The two connecting plates are relatively connected to the upper end surface of the base plate. The connecting shaft connects the two connecting plates. The connecting rod is located between the two connecting plates and is rotatably connected to the connecting shaft.

[0008] As an improvement, a connecting block is detachably connected to the first inclined surface, and the dial indicator is connected to the connecting block. With this structure, the dial indicator is connected to the first inclined surface of the first base through the connecting block, so that the first base of different sizes can be replaced according to different usage scenarios, which is more convenient to use.

[0009] As an improvement, the lower side wall of the first base is connected to a first protrusion, and the bottom end surface of the first protrusion is flush with the bottom end surface of the first base; adopting this structure, the first base is placed more stably.

[0010] As an improvement, a second protrusion is connected to the lower side wall of the second base, and the bottom end surface of the second protrusion is flush with the bottom end surface of the second base; adopting this structure, the second base is placed more stably.

[0011] As an improvement, the upper end of the second probe is a hemispherical surface; adopting this structure improves the accuracy of the second probe in measuring the point to be measured.

[0012] As an improvement, a notch is provided at the lower end of the right part of the connecting rod; with this structure, since the right part of the connecting rod often needs to be inserted into a narrow space, providing the notch can reduce the volume of the right part of the connecting rod, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the second base part in the utility model.

[0015] Figure 3 It is a structural schematic diagram of the first base in the utility model.

[0016] Figure numerals: 1. first base; 2. second base; 3. first inclined surface; 4. second inclined surface; 5. dial indicator; 51. first measuring head; 6. connecting rod; 7. second measuring head; 8. connecting seat; 81. bottom plate; 82. connecting shaft; 83. connecting plate; 9. connecting block; 10. first protrusion; 11. second protrusion; 12. notch. DETAILED DESCRIPTION

[0017] The following is a detailed description of a lever type dial indicator measuring mechanism of the utility model in conjunction with the accompanying drawings.

[0018] like Figures 1 to 3 As shown, a lever-type dial indicator measuring mechanism includes a first base 1 and a second base 2 which are split and distributed on the left and right. A first inclined plane 3 is provided on the upper end of the first base 1, and a second inclined plane 4 parallel to the first inclined plane 3 is provided on the upper end of the second base 2. The first inclined plane 3 and the second inclined plane 4 are both lower on the left and higher on the right. The first inclined plane 3 is connected to a dial indicator 5. Specifically, a connecting block 9 is detachably connected to the first inclined plane 3, and the dial indicator 5 is connected to the connecting block 9. In this embodiment, the connecting block 9 is detachably connected to the first inclined plane 3 by bolts; the dial indicator 5 includes a first probe 51, and the axis of the first probe 51 is perpendicular to the first inclined plane 3.

[0019] like Figure 1 As shown, a connecting rod 6 is rotatably connected to the second inclined surface 4, and the rotation axis of the connecting rod 6 is horizontally arranged. A second probe 7 is connected to the right part of the upper end surface of the connecting rod 6, and the first probe 51 abuts against the left part of the upper surface of the connecting rod 6, and the position where the first probe 51 abuts against the connecting rod 6 and the rotation axis distance of the connecting rod 6 are equal to the rotation axis distance between the second probe 7 and the connecting rod 6. In the initial state, the connecting rod 6 is arranged parallel to the second inclined surface 4; specifically, a connecting seat 8 is detachably connected to the second inclined surface 4, and the connecting rod 6 is rotatably connected to the connecting seat 8; as shown Figure 2As shown, the connecting seat 8 includes a base plate 81, a connecting shaft 82 and two connecting plates 83. The base plate 81 is detachably connected to the second inclined surface 4. In this embodiment, the base plate 81 is detachably connected to the second inclined surface 4 by bolts. The two connecting plates 83 are relatively connected to the upper end surface of the base plate 81. The connecting shaft 82 connects the two connecting plates 83. The connecting rod 6 is located between the two connecting plates 83 and is rotatably connected to the connecting shaft 82.

[0020] In addition, if Figure 3 As shown, the lower side wall of the first base 1 is connected to a first protrusion 10, and the bottom end surface of the first protrusion 10 is flush with the bottom end surface of the first base 1. In this embodiment, the first protrusion 10 is integrally formed on two adjacent side walls of the first base 1, and the two first protrusions 10 are also connected to each other as an integral part; Figure 2 As shown, the lower side wall of the second base 2 is connected to a second protrusion 11, and the bottom end surface of the second protrusion 11 is flush with the bottom end surface of the second base 2. In this embodiment, the second protrusion 11 is integrally formed on two opposite side walls of the second base 2.

[0021] like Figure 1 and Figure 2 As shown, the upper end of the second probe 7 is a hemispherical surface, a notch 12 is provided at the lower end of the right portion of the connecting rod 6, and the notch 12 passes through the right end surface of the connecting rod 6 and the front and rear end surfaces of the right portion of the connecting rod 6.

[0022] Before measuring the position tolerance, the utility model first uses the zeroing seat to adjust the dial indicator 5 to zero. When the connecting rod 6 is in the initial state, the reading of the dial indicator 5 is exactly zero when the first probe 51 abuts against the connecting rod 6. The connecting rod 6 can be extended into the product. After the connecting rod 6 is deflected, the second probe 7 abuts against the point to be measured. The dial indicator 5 is fixed on the first base 1, and the first probe 51 measures the deflection of the left part of the connecting rod 6. Since the distance between the position where the first probe 51 abuts against the connecting rod 6 and the rotation axis of the connecting rod 6 is equal to the distance between the second probe 7 and the rotation axis of the connecting rod 6, Therefore, the deflection measured by the first probe 51 is the deflection at the second probe 7, so that the position tolerance inside the product can be measured from the outside, which is convenient to use. Due to the existence of the first inclined surface 3 and the second inclined surface 4, the connecting rod 6 in the initial state is also in a state of low on the left and high on the right, and the dial indicator 5 is also in an inclined state. For some usage scenarios limited by height space, the inclined dial indicator 5 is also easier to place in these spaces, making it more convenient to use. If necessary, a mark can be set on the connecting rod 6 to indicate the position where the first probe 51 and the connecting rod 6 are against each other.

[0023] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned one implementation mode, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

Claims

1. A lever type dial indicator measuring mechanism, characterized in that: The invention comprises a first base (1) and a second base (2) which are split and distributed on the left and right. The first base (1) is provided with a first inclined surface (3) on the upper end, and the second base (2) is provided with a second inclined surface (4) parallel to the first inclined surface (3) on the upper end. The first inclined surface (3) and the second inclined surface (4) are both lower on the left and higher on the right. The first inclined surface (3) is connected to a dial indicator (5). The second inclined surface (4) is rotatably connected to a connecting rod (6). The dial indicator (5) comprises a first probe (51). The axis of the first probe (51) is perpendicular to the first inclined surface (3), the right part of the upper end surface of the connecting rod (6) is connected to the second probe (7), the first probe (51) abuts against the left part of the upper surface of the connecting rod (6), and the distance between the abutting position of the first probe (51) and the connecting rod (6) and the rotation axis center distance of the connecting rod (6) is equal to the rotation axis center distance of the second probe (7) and the connecting rod (6), and in the initial state, the connecting rod (6) is arranged parallel to the second inclined surface (4).

2. The lever type dial indicator measuring mechanism according to claim 1, characterized in that: A connecting seat (8) is detachably connected to the second inclined surface (4), and the connecting rod (6) is rotatably connected to the connecting seat (8).

3. The lever type dial indicator measuring mechanism according to claim 2, characterized in that: The connecting seat (8) comprises a bottom plate (81), a connecting shaft (82) and two connecting plates (83); the bottom plate (81) is detachably connected to the second inclined surface (4); the two connecting plates (83) are relatively connected to the upper end surface of the bottom plate (81); the connecting shaft (82) connects the two connecting plates (83); the connecting rod (6) is located between the two connecting plates (83) and is rotatably connected to the connecting shaft (82).

4. The lever type dial indicator measuring mechanism according to claim 1, characterized in that: A connecting block (9) is detachably connected to the first inclined surface (3), and the dial indicator (5) is connected to the connecting block (9).

5. The lever type dial indicator measuring mechanism according to claim 1, characterized in that: The lower side wall of the first base (1) is connected to a first protrusion (10), and the bottom end surface of the first protrusion (10) is flush with the bottom end surface of the first base (1).

6. The lever type dial indicator measuring mechanism according to claim 1, characterized in that: The lower side wall of the second base (2) is connected to a second protrusion (11), and the bottom end surface of the second protrusion (11) is flush with the bottom end surface of the second base (2).

7. The lever type dial indicator measuring mechanism according to claim 1, characterized in that: The upper end of the second probe (7) is a hemispherical surface.

8. The lever type dial indicator measuring mechanism according to claim 1, characterized in that: A notch (12) is provided at the lower right end of the connecting rod (6).

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