A splicing diameter gauge

Abstract

This utility model discloses a splicing diameter gauge, which includes a base plate, a bracket, two support plates, and a dial indicator. The bracket is disposed on the base plate, one end of each of the two support plates is fixed to one side of the upper end of the bracket, and the other end of each support plate is located on the same side of the bracket. The dial indicator is mounted on the upper end of the bracket, and the measuring end of the dial indicator is located between the two support plates. This application has the effect of improving the working efficiency of inspecting shaft parts.

Description

Technical Field

[0001] This application relates to the field of gauge technology, and in particular to a splicing diameter gauge. Background Technology

[0002] Shafts are extremely common and very important parts in the machinery industry; their shape error accuracy directly affects the motion performance and service life of machinery. When it is necessary to inspect the diameter of shafts, workers will use vernier calipers to measure it, then rotate the vernier calipers and read the readings at all times to ensure the roundness of the shafts. However, the whole process takes a lot of time, making the work efficiency of inspecting shafts low. Utility Model Content

[0003] The purpose of this utility model is to provide a splicing diameter gauge to address the defects and shortcomings of the existing technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The device includes a base plate, a bracket, two support plates, and a dial indicator. The bracket is mounted on the base plate. One end of each of the two support plates is fixed to one side of the upper end of the bracket, and the other end of each support plate is located on the same side of the bracket. The dial indicator is mounted on the upper end of the bracket, and the measuring end of the dial indicator is located between the two support plates.

[0005] Preferably, a cemented carbide wear-resistant measuring cylinder is embedded on the inner side of the support plate, and the outer wall of the cemented carbide wear-resistant measuring cylinder is arc-shaped.

[0006] Preferably, the side wall of the support plate is provided with an installation groove, and the cemented carbide wear-resistant measuring cylinder is located in the groove of the installation groove.

[0007] Preferably, the support plate is threaded with a locking screw, which drives the mounting groove to clamp and fix the hard alloy wear-resistant measuring cylinder.

[0008] Preferably, the upper end of the bracket is provided with a connecting seat, the connecting seat has a sliding hole, an extension rod is slidably connected in the sliding hole, one end of the extension rod is located between the two support plates, and the measuring end of the dial indicator abuts against the other end of the extension rod.

[0009] Preferably, the upper end of the bracket is provided with an embedding groove for the connecting seat to be embedded and fixed.

[0010] Preferably, the upper end of the bracket has connecting grooves on both sides for mounting one end of the support plate.

[0011] In summary, the beneficial technical effects of this application are as follows: 1. When the diameter of a shaft part needs to be inspected, place the shaft part close to the two support plates and push the measuring end of the dial indicator so that the dial indicator display shows the diameter of the shaft part. Then the shaft part can be rotated to determine the roundness of the shaft part diameter, which improves the working efficiency of inspecting shaft parts. 2. The cemented carbide wear-resistant measuring cylinder replaces the traditional V-shaped plane, ensuring point contact between the part to be measured and the wear-resistant measuring cylinder, which reduces measurement error and manufacturing difficulty. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the inspection tool of this utility model; Figure 2 This is an exploded view of the inspection tool of this utility model; Figure 3 This is an exploded view of the inspection tool of this utility model from another perspective.

[0013] In the diagram: 1. Base plate; 2. Bracket; 3. Support plate; 4. Dial indicator; 5. Mounting bracket; 6. Connecting groove; 7. Mounting groove; 8. Hard alloy wear-resistant measuring cylinder; 9. Locking screw; 10. Embedding groove; 11. Connecting seat; 12. Sliding hole; 13. Through hole; 14. Extension rod. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] This application discloses a splicing diameter gauge.

[0016] Reference Figure 1 The device includes a base plate 1, a bracket 2, two support plates 3, and a dial indicator 4. The lower end of the bracket 2 is fixed to the base plate 1. The two support plates 3 are located at the upper end of the bracket 2 and on both sides. A mounting frame 5 is fixed on one side of the bracket 2. The longitudinal section of the mounting frame 5 is "L" shaped. The dial indicator 4 is installed and fixed on the mounting frame 5. The dial indicator 4 is placed horizontally, and the measuring end of the dial indicator 4 is located between the two support plates 3.

[0017] Reference Figure 2 and Figure 3, connecting grooves are respectively provided on both sides of the upper end face of the support 2, one end of each support plate 3 is embedded and fixed in the corresponding connecting groove 6, the other ends of the two support plates 3 are located on the same side of the support 2, mounting grooves 7 are respectively provided on the corresponding side walls of the two support plates 3, a cemented carbide wear-resistant measuring cylinder 8 is embedded and fixed at the outer end of the mounting groove 7, the cemented carbide wear-resistant measuring cylinder 8 is cylindrical, the side wall of the cemented carbide wear-resistant measuring cylinder 8 protrudes from the inner side wall of the support plate 3, a locking screw 9 is threadedly connected to the side wall of the support plate 3, one end of the locking screw 9 passes through the upper end face of the support plate 3, and then is fixed to the lower end face of the support plate 3 by threads. When the locking screw 9 rotates, the connecting groove 6 can be tightened, so that the cemented carbide wear-resistant measuring cylinder 8 is clamped. Since the cemented carbide wear-resistant measuring cylinder 8 is cylindrical, when a shaft-like part approaches the support plates 3, the side wall of the shaft-like part is in contact with the side wall of the cemented carbide wear-resistant measuring cylinder 8, which is point-to-point contact.

[0018] An embedding groove 10 is provided in the middle of the upper end of the support 2, a connecting seat 11 is fixed in the embedding groove 10 by bolts, the connecting seat 11 is in a convex shape, a sliding hole 12 is provided at one end of the connecting seat 11 close to the dial indicator 4, a through hole 13 is provided at the bottom of the sliding hole 12 on the connecting seat 11, an extension rod 14 is slidably inserted into the connecting seat 11, one end of the extension rod 14 passes out from the through hole 13, and the detection end of the dial indicator 4 abuts against the other end of the extension rod 14.

[0019] Detection principle: the angle Φ formed by two cemented carbide wear-resistant measuring cylinders 8 enables the gauge to form a V-shaped structural gauge. Before use, zero calibration is performed with a standard part first; during part detection, the actual value is obtained by adding and subtracting the deflection amount of the dial indicator 4 and the standard value; the Φ value can be designed according to actual conditions, so that the deflection amount of the dial indicator 4 and the difference between the actual value of the part and the standard value form a 1:1 or other proportional relationship.

[0020] The implementation principle of the spliced diameter gauge disclosed in the embodiment of the present application is as follows: Bring the shaft-like part close to the two support plates 3, and at the same time the shaft-like part pushes the detection end of the dial indicator 4, so that the display screen of the dial indicator 4 will display the diameter of the shaft-like part. Then the shaft-like part can be rotated to determine the roundness of the diameter of the shaft-like part.

[0021] The above description is only the preferred embodiments of the present utility model, therefore all equivalent changes or modifications made to the structure, features and principles described in the scope of the patent application of the present utility model are included in the scope of the patent application of the present utility model.

Claims

1. A splicing diameter gauge, characterized in that: The device includes a base plate (1), a bracket (2), two support plates (3) and a dial indicator (4). The bracket (2) is mounted on the base plate (1). One end of each of the two support plates (3) is fixed to the two sides of the upper end of the bracket (2), and the other end of each support plate (3) is located on the same side of the bracket (2). The dial indicator (4) is mounted on the upper end of the bracket (2), and the measuring end of the dial indicator (4) is located between the two support plates (3).

2. The splicing diameter gauge according to claim 1, characterized in that, The inner side of the support plate (3) is fitted with a cemented carbide wear-resistant measuring cylinder (8), and the outer side wall of the cemented carbide wear-resistant measuring cylinder (8) is arc-shaped.

3. The splicing diameter gauge according to claim 2, characterized in that, The side wall of the support plate (3) is provided with an installation groove (7), and the hard alloy wear-resistant measuring cylinder (8) is located in the groove of the installation groove (7).

4. The splicing diameter gauge according to claim 3, characterized in that, The support plate (3) is threaded with a locking screw (9), which drives the mounting groove (7) to clamp and fix the hard alloy wear-resistant measuring cylinder (8).

5. A splicing diameter gauge according to claim 1, characterized in that, The upper end of the bracket (2) is provided with a connecting seat (11), and a sliding hole (12) is provided in the connecting seat (11). An extension rod (14) is slidably connected in the sliding hole (12). One end of the extension rod (14) is located between the two support plates (3), and the detection end of the dial indicator (4) abuts against the other end of the extension rod (14).

6. A splicing diameter gauge according to claim 5, characterized in that, The upper end of the bracket (2) is provided with an embedding groove (10) for the connecting seat (11) to be embedded and fixed.

7. A splicing diameter gauge according to claim 1, characterized in that... The upper end of the bracket (2) is provided with connecting grooves (6) on both sides for one end of the support plate (3) to be installed.

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