A vernier caliper with angle measurement function

Abstract

A vernier caliper with an angle measurement function is characterized in that it is mainly composed of a locking mechanism, a distance measuring mechanism, an angle measuring mechanism, a depth measuring mechanism, and a numerical display mechanism. The locking mechanism is mainly composed of a fastening screw and a spring sheet; the distance measuring mechanism is mainly composed of a main scale, a digital display mechanism, and a dynamic measuring claw; the angle measuring mechanism is mainly composed of a digital display mechanism, a main scale, a rotary encoder, a secondary scale, a cap, a lock, a semicircular protractor, a buckle, a buckle support, and a scale groove; the depth measuring mechanism is mainly composed of a main scale, a secondary scale, a cap, a lock, a buckle, a buckle support, and a scale groove, and the depth measuring mechanism and the angle measuring mechanism are fixed to the main scale by M3 hexagonal self-locking screws; the numerical display mechanism is mainly composed of a digital display mechanism and a display screen. The patent of the present invention can realize the depth measurement of blind holes with a diameter of 3 to 90 mm and a depth of 0 to 200 mm, as well as the measurement of the external angle of a workpiece with an angle of 0 to 180° while meeting the functions of a traditional vernier caliper, thereby reducing the measurement time and improving the efficiency.

Description

Technical Field The invention relates to the technical field of workpiece dimension measuring tools, and in particular to a vernier caliper with angle measurement function. Background Art In the field of industrial production, when measuring the dimensions of metal parts, workers often need to measure the angle, length, depth and other dimensions of parts by changing measuring tools. The process is cumbersome, time-consuming, inefficient and inconsistent with the principle of motion economy. The patent of this invention can realize the depth measurement of blind holes with a diameter of 3 to 90 mm and a depth of 0 to 200 mm, as well as the measurement of the external angle of workpieces with an angle of 0 to 180°, while meeting the functions of traditional vernier calipers, thereby reducing measurement time and improving efficiency. Summary of the invention The purpose of the patent of this invention is to provide a vernier caliper with angle measurement function.

[0001] The technical solution of the patent of this invention is as follows:

[0002] The utility model relates to a vernier caliper with an angle measuring function, which is mainly composed of a locking mechanism, a distance measuring mechanism, an angle measuring mechanism, a depth measuring mechanism and a numerical display mechanism.

[0003] The locking mechanism is mainly composed of a fastening screw (10) and a spring sheet (20); the distance measuring mechanism is mainly composed of a main scale (2), a digital display mechanism (1), and a dynamic measuring claw (4). The main scale (2) is marked with a length scale along its length direction, the unit is mm, and the measuring range is 300 mm. Figure 2 In the direction shown, from left to right, the first scale is 0, there are 300 scale divisions, each scale length is 1 mm, and every 10 scale divisions are marked with "10", "20", "30" ... "300" in sequence. The main scale (2) has a rectangular scale groove (9) opened in the middle along the length measurement direction thereof for placing the secondary scale (6), as shown in FIG. Figure 4 As shown, the surface of the main scale (2) is affixed with a capacitive grid and a fixed grid, and the digital display mechanism (1) and a dynamic measuring claw (4) form a vernier. The vernier slides on the main scale (2). The circuit board of the digital display mechanism (1) is affixed with a dynamic grid. The spring sheet (20) of the locking mechanism has an M1.5 threaded hole at each end. The locking mechanism is fixed to the vernier by an M1.5 hexagonal screw. The angle measuring mechanism mainly comprises a digital display mechanism (1), a main scale (2), a rotary encoder (5), a secondary scale (6), a cap (7), a latch (11), a semicircular protractor (21), a buckle (8), a buckle support (12), and a scale groove (9). The semicircular protractor (21) is marked with an angle scale along its circumferential direction, the unit of which is degree, and the measuring range is 180 degrees. Figure 2In the direction shown, counterclockwise, the first scale is 0 degrees, there are 360 ​​divisions in total, each division angle is 0.5 degrees, and every 10 divisions are marked with "5", "10", "15" ... "180" in sequence. The rotary encoder (5) and the semicircular protractor (21) are fixed by M3 hexagon socket self-locking screws. Before fixing, EVA sponge glue is used to protect the circuit board. The cover cap (7) and the main scale (2) are fixed by M3 hexagon socket self-locking screws. The cover cap (7) has a rectangular groove, such as Figure 7 As shown, the rotary encoder (5) has a rectangular slot, such as Figure 6 As shown, the secondary ruler (6) is connected to the rotary encoder (5) and the cap (7) by passing through the rectangular grooves left on the rotary encoder (5) and the cap (7), the cap (7) and the main ruler (2) are provided with round holes, and the latch (11) is connected to the cap (7) and the main ruler (2) by fixed-point self-locking; the depth measuring mechanism mainly comprises the main ruler (2), the secondary ruler (6), the cap (7), the latch (11), the buckle (8), the buckle support (12), and the ruler groove (9); the secondary ruler (6) is marked with length scales along its length direction, the unit is mm, and the measuring range is 200 mm, as shown in FIG. Figure 2 In the direction shown, from top to bottom, the first scale is 0, there are 400 scale divisions in total, each scale length is 0.5 mm, and every 10 scale divisions are marked with "5", "10", "15" ... "200" in sequence. The depth measuring mechanism and the angle measuring mechanism are fixed to the main scale (2) by M3 hexagonal self-locking screws; the numerical display mechanism mainly consists of a digital display mechanism (1) and a display screen (3).

[0004] Compared with the prior art, the invention is innovative in that:

[0005] A vernier caliper with an angle measurement function can realize the measurement of angle, length and depth, avoiding the waste of time caused by multiple replacement of measuring tools during measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the mechanism of the present invention.

[0007] Figure 2 It is a front view of the present invention.

[0008] Figure 3 It is a rear view of the present invention.

[0009] Figure 4 It is the right side view of the present invention.

[0010] Figure 5 It is an enlarged schematic diagram of the card lock of the present invention.

[0011] Figure 6 It is an enlarged schematic diagram of the rotary encoder of the present invention.

[0012] Figure 7 It is an enlarged schematic diagram of the cap of the present invention.

[0013] Figure 8 It is an enlarged schematic diagram of the locking mechanism of the present invention.

[0014] Fig. 9 It is a schematic diagram of measuring the length of a workpiece using the present invention.

[0015] Fig.10 It is a front view of the secondary ruler of the present invention stored in the main ruler.

[0016] Fig.11 It is a front view of the secondary ruler of the present invention being pulled out from the main ruler.

[0017] Fig.12 It is a schematic diagram of measuring the angle of a workpiece using the present invention.

[0018] Fig.13 It is a schematic diagram of measuring the blind hole depth of a workpiece using the present invention.

[0019] The following are marked in the figure:

[0020] 1-digital display mechanism, 2-main scale, 3-display screen, 4-moving measuring claw, 5-rotary encoder, 6-secondary scale, 7-cap, 8-clip, 9-scale slot, 10-fastening screw, 11-clip, 12-clip support, 13-clip button, 14-spring, 15-control column, 16-clip deflection plate, 17-clip column, 18-spring pad, 19-back cover, 20-spring sheet, 21-semicircle protractor, 22-workpiece 1, 23-workpiece 2, 24-workpiece 3

[0021] DETAILED DESCRIPTION OF THE EMBODIMENTS The working principle of the present invention is further described in detail below with reference to the accompanying drawings:

[0022] The utility model relates to a vernier caliper with an angle measuring function, which is mainly composed of a locking mechanism, a distance measuring mechanism, an angle measuring mechanism, a depth measuring mechanism and a numerical display mechanism.

[0023] The locking mechanism is mainly composed of a fastening screw (10) and a spring sheet (20); the distance measuring mechanism is mainly composed of a main scale (2), a digital display mechanism (1), and a dynamic measuring claw (4); the angle measuring mechanism is mainly composed of a digital display mechanism (1), a main scale (2), a rotary encoder (5), a secondary scale (6), a cover cap (7), a latch (11), a semicircular protractor (21), a buckle (8), a buckle support (12), and a scale groove (9); the depth measuring mechanism is mainly composed of a main scale (2), a secondary scale (6), a cover cap (7), a latch (11), a buckle (8), a buckle support (12), and a scale groove (9); and the numerical display mechanism is mainly composed of a digital display mechanism (1) and a display screen (3).

[0024] When measuring distance, the invention can measure the maximum length or outer diameter of the workpiece to be 300 mm. The workpiece is clamped by sliding the cursor on the main scale (2). After the workpiece is fixed, the fastening screw (10) is rotated to press the spring sheet (20) along the length direction of the screw rod, so that the spring sheet (20) and the main scale (2) are closely attached together, the friction force is increased, and the cursor is fixed. The capacitance between the fixed grid and the moving grid of the capacitance grid is measured and converted into digital data by a single chip microcomputer and displayed on a display screen (3). Fig. 9 shown.

[0025] When measuring the angle, the maximum outer angle of the workpiece can be measured by the present invention to be 180°. The auxiliary ruler (6) is pulled out from the ruler slot (9) along the length direction of the main ruler (2). Fig.10 , Fig.11 As shown, the buckle (8) pressed by the secondary ruler (6) pops up, and the secondary ruler (6) and the upper parallel surface of the semicircular protractor (21) clamp the outer corner of the workpiece together, as shown in FIG. Fig.12 As shown, the rotary encoder (5) measures the angular displacement and displays it on the display screen (3). At the same time, the scale on the semicircular protractor (21) aligned with the secondary ruler (6) can also be read by naked eyes.

[0026] When performing depth measurement, the present invention can be used to measure the depth of blind holes with a diameter of 3 to 90 mm and a depth of 0 to 200 mm. After the auxiliary ruler (6) is pulled out from the ruler groove (9) along the length direction of the main ruler (2), Fig.10 , Fig.11 As shown in FIG. 1 , the buckle (8) pressed by the secondary ruler (6) pops up, and when the secondary ruler (6) rotates to be perpendicular to the upper parallel surface of the semicircular protractor (21), as shown in FIG. Figure 2 As shown, the locking control column (15) contacts the locking deflection sheet (16), and the locking button (13) is manually pressed to fix the cap (7). At this time, the upper parallel surface of the semicircular protractor (21) is placed on both sides of the measured depth, and the secondary ruler (6) is moved up and down to measure the depth. Fig.13 shown.

[0027] The display screen (3) can switch between length units and angle units via a button on the digital display mechanism (1).

Claims

1. A vernier caliper with angle measurement function, characterized in that: The invention mainly comprises a locking mechanism, a distance measuring mechanism, an angle measuring mechanism, a depth measuring mechanism and a numerical display mechanism; the locking mechanism mainly comprises a fastening screw (10) and a spring sheet (20); the distance measuring mechanism mainly comprises a main scale (2), a digital display mechanism (1) and a dynamic measuring claw (4); the digital display mechanism (1) and the dynamic measuring claw (4) constitute a vernier, and the vernier slides on the main scale (2); two ends of the spring sheet (20) of the locking mechanism each have an M1.5 threaded hole; the locking mechanism is fixed to the vernier through an M1.5 hexagonal screw; when measuring distance, the vernier is slid on the main scale (2) to clamp the workpiece; after the workpiece is fixed, the fastening screw (10) is rotated to press the spring sheet (20) along the length direction of the screw rod, so that the spring sheet (20) and the main scale are aligned. (2) are tightly attached together to increase friction and fix the cursor, and the capacitance between the fixed grid and the moving grid of the capacitor is measured, and the capacitance is converted into digital data by a single chip microcomputer and displayed on a display screen (3); the angle measuring mechanism mainly comprises a digital display mechanism (1), a main scale (2), a rotary encoder (5), a secondary scale (6), a cap (7), a lock (11), a semicircular protractor (21), a buckle (8), a buckle support (12), and a scale slot (9); the rotary encoder (5) and the semicircular protractor (21) are fixed by M3 hexagon socket self-locking screws, and an EVA sponge adhesive is used to protect the circuit board before fixing; the cap (7) and the main scale (2) are fixed by M3 hexagon socket self-locking screws, and the secondary scale (6) is inserted through the rotary encoder (5) and the cap (7). The rectangular groove on the main ruler (2) is connected with the rotary encoder (5) and the cap (7). The cap (7) and the main ruler (2) are provided with circular holes. The latch (11) is connected with the cap (7) and the main ruler (2) by fixed-point self-locking. When measuring the angle, the auxiliary ruler (6) is pulled out from the ruler groove (9) along the length direction of the main ruler (2). The latch (8) pressed by the auxiliary ruler (6) pops up. The auxiliary ruler (6) and the upper end parallel surface of the semicircular protractor (21) clamp the outer angle of the workpiece together. The rotary encoder (5) measures the angular displacement and displays it on the display screen (3). At the same time, the scale on the semicircular protractor (21) aligned with the auxiliary ruler (6) can also be read by naked eyes. The depth measuring mechanism mainly comprises the main ruler (2), the auxiliary ruler (6), the cap (7), the latch (11), the latch (8), The invention is composed of a buckle support (12) and a ruler slot (9). The depth measuring mechanism and the angle measuring mechanism are fixed to the main ruler (2) by M3 hexagonal self-locking screws. When the secondary ruler (6) is pulled out from the ruler slot (9) along the length direction of the main ruler (2), the buckle (8) pressed by the secondary ruler (6) pops up. When the secondary ruler (6) is rotated to be perpendicular to the upper parallel surface of the semicircular protractor (21), the locking control column (15) contacts the locking deflection sheet (16). The locking button (13) is manually pressed to fix the cover cap (7). At this time, the upper parallel surfaces of the semicircular protractor (21) are placed on both sides of the measured depth, and the secondary ruler (6) is moved up and down to measure the depth. The numerical display mechanism is mainly composed of a digital display mechanism (1) and a display screen (3).

2. A vernier caliper with angle measurement function according to claim 1, characterized in that: The semicircular protractor (21) is marked with angle scales along its circumferential direction, the unit is degree, the measuring range is 180 degrees, starting from one end of the buckle (8), counterclockwise, the first scale is 0 degree, there are 360 ​​divisions, each division angle is 0.5 degree, and every 10 divisions are marked with "5", "10", "15" ... "180" in sequence.

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