CN210346515U

CN210346515U - Quick zero calibration instrument of vernier caliper

Info

Publication number: CN210346515U
Application number: CN201921709922.4U
Authority: CN
Inventors: 童海红
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-04-17
Anticipated expiration: 2029-10-14

Abstract

The utility model provides a quick zero calibration instrument of vernier caliper belongs to and measures technical field, improves vernier caliper zero calibration speed and accuracy. This quick zero calibration instrument of vernier caliper, its characterized in that, including a grip block that is the cuboid form, a centre gripping mouth has transversely been seted up to the lateral wall of grip block, a slide has transversely still been seted up to the lateral wall of grip block, and it is provided with a calibration piece to slide in the slide, calibration piece and one enable it be in gliding adjustment mechanism in the slide connects, the intercommunication has been seted up at the top of grip block the screw of slide is one, and the screw is one to have closed locking screw soon, the intercommunication has still been seted up at the top of grip block the screw two and the screw three of centre gripping mouth, have closed locking screw two and locking screw three respectively in screw two and the screw three. The utility model has the advantages of zero calibration convenience and accuracy.

Description

Quick zero calibration instrument of vernier caliper

Technical Field

The utility model belongs to the technical field of measure, a quick zero calibration instrument of vernier caliper is related to.

Background

A vernier caliper is a measuring tool for measuring length, inner diameter, outer diameter and depth. The vernier caliper comprises a main ruler and a vernier attached to the main ruler and capable of sliding, wherein the vernier is fastened on the vernier through a screw, vernier scales are marked on the vernier, and before the vernier caliper is used, zero position correction is firstly carried out, namely zero correction. In the conventional method for zero calibration, the vernier is returned to the zero position, whether a zero scale line on the vernier is aligned with a zero scale line on the main scale is checked, if the zero scale line on the vernier is not aligned with the zero scale line on the main scale, the vernier needs to be loosened from the vernier by a screwdriver, and the position of the vernier is adjusted to enable the zero scale line on the vernier to be aligned with the zero scale line on the main scale.

The technical problems existing at present are as follows: first, the zero calibration speed is slow. When the zero calibration is carried out, the zero scale line on the vernier scale is not easy to align with the zero scale line on the main scale, and the time is consumed; secondly, the zero calibration accuracy is poor. After the zero scale mark on the vernier scale aligns with the zero scale mark on the main scale, the vernier scale slides easily on the vernier in the process of locking the vernier scale by a screwdriver, so that the zero scale mark of the vernier scale deviates from the zero scale mark of the main scale, and the zero calibration fails.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a quick zero calibration instrument of vernier caliper, solved the problem that exists among the background art, improved zero calibration speed and accuracy.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a quick zero calibration instrument of vernier caliper, its characterized in that, includes a grip block that is the cuboid form, and a centre gripping mouth has transversely been seted up to the lateral wall of grip block, a slide has transversely still been seted up to the lateral wall of grip block, and it is provided with a calibration piece to slide in the slide, calibration piece and one enable it and be in gliding adjustment mechanism connects in the slide, the intercommunication has been seted up at the top of grip block the screw of slide is one, and the screw is one to have closed locking screw soon, the intercommunication has still been seted up at the top of grip block the screw two and the screw three of centre gripping mouth, have closed locking screw two and locking screw three respectively in screw two and the screw three.

Foretell adjustment mechanism includes a drive screw, the transmission screw has been seted up along its length direction to the side of calibration piece, the intercommunication has been seted up to the lateral wall of grip block the transmission hole of slide, drive screw's one end penetrates in transmission hole and screw in transmission screw, and drive screw's the other end has the twist grip, drive screw is fixed with the grip block with axial fixity circumferential direction's mode.

The transmission screw rod is sleeved and fixed with an annular rotating ring, the side wall of the clamping block is provided with a bottom hole connected with the transmission hole, the rotating ring is embedded into the bottom hole, and the side wall of the clamping block is fixed with a cover plate which axially fixes the rotating ring in the bottom hole.

The top of the calibration block is provided with a knurling belt.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses, have the fast advantage of school zero speed.

2. The utility model discloses, have the accurate advantage of school zero.

3. The utility model has the advantages of simple structure and convenient use.

Drawings

Fig. 1 is a schematic view of the axial measurement structure of the present invention.

Fig. 2 is a schematic diagram of the explosion structure of the present invention.

Fig. 3 is a schematic structural diagram of the clamping block of the present invention.

FIG. 4 is a schematic view of the present zero calibration tool clamped on a vernier caliper for use.

In the figure, 1, a clamping block; 2. a clamping port; 3. a slideway; 4. a calibration block; 4a, a transmission screw hole; 4b, rolling a pattern belt; 5. a first screw hole; 6. locking the first screw; 7. a second screw hole; 8. a third screw hole; 9. a second locking screw; 10. locking a screw III; 11. a drive screw; 12. rotating the handle; 13. a drive bore; 14. rotating the ring; 15. a bottom hole; 16. and (7) a cover plate.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, fig. 2 and fig. 3, a quick zero calibration tool for a vernier caliper is characterized by comprising a clamping block 1 in a cuboid shape, a clamping opening 2 is transversely formed in the side wall of the clamping block 1, a slide rail 3 is further transversely formed in the side wall of the clamping block 1, a calibration block 4 is arranged in the slide rail 3 in a sliding mode, the calibration block 4 is connected with an adjusting mechanism capable of enabling the calibration block to slide in the slide rail 3, a screw hole I5 communicated with the slide rail 3 is formed in the top of the clamping block 1, a locking screw I6 is screwed in the screw hole I5, a screw hole II 7 and a screw hole III 8 communicated with the clamping opening 2 are further formed in the top of the clamping block 1, and a locking screw II 9 and a locking screw III 10 are screwed in the screw hole II 7 and the screw hole III 8 respectively.

The adjusting mechanism comprises a transmission screw rod 11, a transmission screw hole 4a is formed in the side end of the calibration block 4 along the length direction of the calibration block, a transmission hole 13 communicated with the slide rail 3 is formed in the side wall of the clamping block 1, one end of the transmission screw rod 11 penetrates into the transmission hole 13 and is screwed into the transmission screw hole 4a, the other end of the transmission screw rod 11 is provided with a rotating handle 12, and the transmission screw rod 11 is fixed with the clamping block 1 in an axial fixing and circumferential rotating mode.

The working principle is as follows: firstly, the zero calibration tool is calibrated, firstly, the vernier caliper is calibrated by a conventional method, after the zero calibration is accurate, the clamping port 2 of the clamping block 1 of the zero calibration tool is sleeved at the end part of the vernier caliper, as shown in fig. 4, the end part of the body of the vernier caliper is completely inserted into the clamping port 2, the end part of the body of the vernier caliper is enabled to be abutted against the concave bottom of the clamping port 2, at the moment, a locking screw II 9 and a locking screw III 10 are locked, the clamping block 1 is fixed with the body of the vernier caliper, then, a rotating handle 12 of a transmission screw 11 is rotated, the calibration block 4 is enabled to be extended out from the slideway 3 and to be abutted against the end part of the vernier caliper, then, the locking screw I6 is locked, the calibration block 4 is enabled to be fixed in the slideway 3, thus, the zero calibration tool is calibrated, then, the locking screw II 9 and the locking screw III 10 are loosened, and the zero calibration. When the zero position of the vernier caliper is deviated in the production and use process, namely zero calibration is needed, screws on the vernier caliper are firstly loosened by a screwdriver, the clamping port 2 of the clamping block 1 of the calibrating tool is sleeved at the end of the vernier caliper, the end of the vernier caliper body completely extends into the clamping port 2, the end of the vernier caliper body is enabled to be abutted against the concave bottom of the clamping port 2, at the moment, the locking screw II 9 and the locking screw III 10 are locked, the clamping block 1 and the vernier caliper body are fixed, then, the end of the vernier caliper 17 is abutted against the end of the calibrating block 4, then, the screws on the vernier caliper 17 are locked, the vernier caliper is calibrated, the zero calibration is completed, the zero calibration tool is taken down, and the zero calibration is needed to be performed again next time, the steps are repeated, so that the vernier caliper has the advantages of rapidness and accuracy.

An annular rotating ring 14 is sleeved and fixed on the transmission screw 11, a bottom hole 15 connected with the transmission hole 13 is formed in the side wall of the clamping block 1, the rotating ring 14 is embedded into the bottom hole 15, and a cover plate 16 axially fixing the rotating ring 14 in the bottom hole 15 is fixed on the side wall of the clamping block 1. The cover plate 16 axially fixes the rotary ring 14 in the bottom hole 15, so that the drive screw 11 can rotate circumferentially and is axially fixed.

The knurling area 4b has been seted up at the top of proof mass 4, and the head of a locking screw 6 is contradicted with knurling area 4b, improves frictional force, improves the locking effect, prevents that proof mass 4 from producing in slide 3 and sliding.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although 1, the clamp block is used more herein; 2. a clamping port; 3. a slideway; 4. a calibration block; 4a, a transmission screw hole; 4b, rolling a pattern belt; 5. a first screw hole; 6. locking the first screw; 7. a second screw hole; 8. a third screw hole; 9. a second locking screw; 10. locking a screw III; 11. a drive screw; 12. rotating the handle; 13. a drive bore; 14. rotating the ring; 15. a bottom hole; 16. cover plate, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. A vernier caliper rapid zero calibration tool is characterized by comprising a clamping block (1) in a cuboid shape, a clamping opening (2) is transversely formed in the side wall of the clamping block (1), the side wall of the clamping block (1) is transversely provided with a slideway (3), a calibration block (4) is arranged in the slideway (3) in a sliding way, the calibration block (4) is connected with an adjusting mechanism which can enable the calibration block to slide in the slideway (3), the top of the clamping block (1) is provided with a first screw hole (5) communicated with the slideway (3), a first locking screw (6) is screwed in the first screw hole (5), the top of the clamping block (1) is further provided with a screw hole II (7) and a screw hole III (8) which are communicated with the clamping port (2), and a locking screw II (9) and a locking screw III (10) are screwed in the screw hole II (7) and the screw hole III (8) respectively.

2. The vernier caliper quick zero calibration tool according to claim 1, wherein the adjusting mechanism comprises a transmission screw (11), a transmission screw hole (4a) is formed in the side end of the calibration block (4) along the length direction of the calibration block, a transmission hole (13) communicated with the slide way (3) is formed in the side wall of the clamping block (1), one end of the transmission screw (11) penetrates through the transmission hole (13) and is screwed into the transmission screw hole (4a), a rotating handle (12) is arranged at the other end of the transmission screw (11), and the transmission screw (11) is fixed with the clamping block (1) in an axially fixed circumferential rotation mode.

3. The vernier caliper quick zero calibration tool as claimed in claim 2, wherein the transmission screw (11) is sleeved and fixed with an annular rotary ring (14), the side wall of the clamping block (1) is provided with a bottom hole (15) connected with the transmission hole (13), the rotary ring (14) is embedded in the bottom hole (15), and the side wall of the clamping block (1) is fixed with a cover plate (16) which axially fixes the rotary ring (14) in the bottom hole (15).

4. The quick zero calibration tool of the vernier caliper according to claim 1, wherein the top of the calibration block (4) is provided with a knurled belt (4 b).