CN216361551U

CN216361551U - Caliper capable of off-line measurement

Info

Publication number: CN216361551U
Application number: CN202123043409.6U
Authority: CN
Inventors: 李小军; 唐定林
Original assignee: Guilin Measuring & Cutting Tool Co ltd
Current assignee: Guilin Measuring & Cutting Tool Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-04-22
Anticipated expiration: 2031-12-06

Abstract

The utility model provides a caliper capable of off-line measurement, which comprises a main scale, a sliding scale frame and a vernier scale, wherein the sliding scale frame and the vernier scale are sequentially connected to the scale body of the main scale in a sliding manner; the sliding ruler frame is connected with the vernier through a sliding limiting device, the vernier is provided with a brake screw to control the vernier to slide relative to the main ruler, and the vernier is provided with vernier marks matched with the main ruler scales. The caliper capable of off-line measurement provided by the utility model can be separated from off-line reading of an object to be measured after measurement, can avoid scratching of the surface of the object by the caliper in the moving process, and can be well suitable for object measurement under the conditions that the object cannot be directly read by naked eyes, such as narrow and dark conditions.

Description

Caliper capable of off-line measurement

Technical Field

The utility model relates to the technical field of vernier calipers, in particular to a caliper capable of off-line measurement.

Background

The caliper is a common geometric quantity measuring instrument used in the production and detection processes, and the length, the thickness, the inner diameter and the outer diameter can be measured quickly and accurately by adopting the caliper. The caliper is generally composed of a main scale and a vernier attached to the main scale and capable of sliding, measuring claws corresponding to the main scale and the vernier are arranged on the main scale and are in contact positioning with two sides of a to-be-measured end, and a measuring result is obtained by reading the scale interval of the main scale and the scale interval of the auxiliary scale.

The caliper is widely applied to various industries due to the advantages of small size, portability, simple and convenient operation and accurate reading. However, conventional calipers are not capable of rapid measurement and reading during application under certain circumstances and conditions. If measure the size in narrow and small, dark space, the operator can't directly read with the naked eye, takes out reading slide caliper rule measuring face and can leave measured object, main chi and vernier relative movement probably can not take place and can not obtain accurate reading. If only the vernier is fixed and the caliper is moved backwards to perform reading, the measuring surface generates sliding friction with the surface of the workpiece, which may cause abrasion to the surface of the workpiece, especially adversely affect the workpiece with high requirement on surface smoothness.

Therefore, design a section and be applicable to the slide caliper rule under the unable naked eye direct reading condition such as narrow and small, dark, can facilitate for measuring, enlarge the range of application that the slide caliper rule was measured.

SUMMERY OF THE UTILITY MODEL

The caliper capable of off-line measurement provided by the utility model can be separated from off-line reading of an object to be measured after measurement, can avoid scratching of the surface of the object by the caliper in the moving process, and can be well suitable for object measurement under the conditions that the object cannot be directly read by naked eyes, such as narrow and dark conditions.

In order to achieve the technical purpose and achieve the technical effects, the utility model solves the problems through the following technical scheme:

a caliper capable of off-line measurement comprises a main scale and a vernier scale, wherein the vernier scale is connected to a main scale body in a sliding mode and comprises a sliding scale frame connected to the main scale in a sliding mode, the sliding scale frame is arranged at the front portion of the vernier scale, and the sliding scale frame and the main scale are provided with a movable measuring jaw and a fixed measuring jaw which correspond to each other; the sliding scale frame is connected to the vernier scale in a sliding mode through a sliding limiting device; the vernier is provided with a vernier scale line matched with the scale of the main scale.

In the scheme, the sliding ruler frame is connected with the vernier through the sliding limiting device, and when the sliding limiting device is locked, the sliding ruler frame and the vernier slide synchronously; when the sliding limiting device is unlocked, the sliding ruler frame can slide relative to the vernier.

During measurement, the sliding ruler frame and the vernier are locked through the sliding limiting device, the sliding ruler frame and the vernier slide synchronously to the moving measuring jaw and the fixed measuring jaw to be in contact positioning with a measuring surface, and the brake screw is screwed to limit the sliding of the vernier. Then the sliding ruler frame is moved backwards by unlocking the sliding limiting device, so that the movable measuring claw and the fixed measuring claw are separated from the measuring surface, and the caliper is moved to the environment convenient for reading, so that the value to be measured can be obtained.

Furthermore, the sliding limiting device comprises a sliding rod which is fixed on the vernier and extends forwards, and a positioning knob which controls the relative displacement of the sliding ruler frame and the sliding rod; the sliding ruler frame is provided with a sliding hole matched with the sliding rod.

Furthermore, corresponding measuring heads are arranged on the inner sides of the movable measuring jaw and the fixed measuring jaw, and the measuring heads are tip structures with conical front ends. Set up sharp head type side head, can reduce the area of contact of slide caliper rule device and the object that awaits measuring, better avoid wearing and tearing.

The utility model has the advantages and effects that:

according to the caliper capable of off-line measurement, the sliding of the sliding caliper frame and the vernier scale is controlled through the sliding limiting device. After the sliding ruler frame and the vernier move synchronously to measure the object to be measured, the fixed connection is released through the sliding limiting device, the sliding ruler frame slides backwards to separate the measuring claw from the surface of the object to be measured, and the caliper is moved to the position convenient for reading so that the surface of the object to be measured cannot be scratched.

The inner sides of the movable measuring jaw and the fixed measuring jaw are provided with the pointed side heads, so that the contact area between the caliper device and an object to be measured is reduced conveniently, and the abrasion of the object to be measured in measurement is further reduced.

Drawings

Fig. 1 is a schematic view of a caliper capable of off-line measurement according to the present invention.

And (3) identifying the figure number:

1. the measuring device comprises a main scale, 11, a fixed measuring jaw, 2, a vernier scale, 3, a sliding scale frame, 31, a movable measuring jaw, 4, a sliding limiting device, 41, a sliding rod, 42, a positioning knob, 5, a brake screw, 6 and a measuring head.

Detailed Description

The technical solution in the embodiments of the present invention is clearly and completely described below with reference to the drawings in the embodiments of the present invention. The specific embodiments described herein are merely illustrative of the utility model and are not intended to be limiting.

According to the caliper capable of off-line measurement, as shown in fig. 1, the main body includes a main scale 1, a vernier 2, a sliding scale frame 3, a sliding limiting device 4, a brake screw 5 and a measuring head 6. The sliding ruler frame 3 and the vernier 2 are sequentially connected with the ruler body of the main ruler 1 in a sliding mode from front to back. The vernier scale 2 is provided with a vernier scale line which is matched with the scale of the main scale 1 for reading, and a brake screw 5 for controlling the vernier scale 2 and the main scale 1 to slide relatively.

The slide rule frame 3 is provided with a movable measuring jaw 31 and a fixed measuring jaw 11 corresponding to the main rule 1, and a corresponding measuring head 6 is arranged on the inner side of the movable measuring jaw 31 and the fixed measuring jaw 11. The measuring head 6 adopts a tip structure with a conical front end, and the tip side head can reduce the contact area between the caliper device and an object to be measured and reduce contact wear.

The vernier 2 is connected with the sliding scale frame 3 through a sliding limiting device 4, and the sliding limiting device 4 comprises a sliding rod 41 and a positioning knob 42. The slide rod 41 is fixed on the vernier 2 and extends forwards, and the slide scale frame 3 is provided with a slide hole matched with the slide rod 41. The sliding scale frame 3 is provided with a threaded hole corresponding to the sliding hole, the positioning knob 42 is assembled in the threaded hole, the front end of the positioning knob abuts against the sliding rod 41 when the positioning knob is screwed in, and then the relative movement of the sliding scale frame 3 and the vernier 2 is limited.

When the caliper according to this embodiment is used, the positions of the sliding caliper frame 3 and the vernier 2 are first adjusted to align the zero scale line of the vernier 2 with the zero scale line of the main caliper 1, and the sliding caliper frame 3 is adjusted to make the measuring heads 6 of the two measuring jaws contact. At this time, the positioning knob 42 of the slide stopper 4 is tightened to fix the relative positions of the slide frame 3 and the vernier 2, thereby completing the zero adjustment operation.

And (4) performing formal measurement, and placing the object to be measured between the movable measuring jaw 31 and the fixed measuring jaw 11 to enable the measuring heads 6 at the two ends to effectively contact with the surface to be measured. The vernier 2 is positioned by tightening the stop screw 5 on the vernier 2. Then, the positioning knob 42 of the sliding limiting device 4 is loosened, and the sliding ruler frame 3 is moved backwards to separate the measuring head 6 from the surface to be measured. The device is moved to a position convenient for reading, and the length of the object to be measured can be obtained by reading the scale of the vernier scale 2.

The embodiments of the present invention are described in detail above with reference to the drawings, but the present invention is not limited to the described embodiments. Many changes, modifications, substitutions and alterations to these embodiments are within the scope of the present invention without departing from the principles and spirit of the utility model.

Claims

1. The utility model provides a but off-line measuring's slide caliper rule, includes main scale (1) and vernier (2), vernier (2) sliding connection in main scale (1) blade, its characterized in that:

the vernier caliper comprises a sliding caliper frame (3) which is connected with a main ruler (1) in a sliding mode, wherein the sliding caliper frame (3) is arranged at the front part of a vernier (2), and the sliding caliper frame (3) and the main ruler (1) are provided with a corresponding movable measuring jaw (31) and a corresponding fixed measuring jaw (11);

the sliding scale frame (3) is connected to the vernier scale (2) in a sliding manner through a sliding limiting device (4); the vernier scale (2) is provided with a brake screw (5) to control the relative sliding of the vernier scale (2) and the main scale (1), and the vernier scale (2) is provided with a vernier scale line matched with the scale of the main scale (1).

2. An off-line measurable caliper according to claim 1, wherein: the sliding limiting device (4) comprises a sliding rod (41) which is fixed on the vernier (2) and extends forwards, and a positioning knob (42) which controls the sliding ruler frame (3) and the sliding rod (41) to move relatively, and a sliding hole matched with the sliding rod (41) is formed in the sliding ruler frame (3).

3. An off-line measurable caliper according to claim 1, wherein: and corresponding measuring heads (6) are arranged on the inner sides of the movable measuring jaw (31) and the fixed measuring jaw (11).

4. A caliper measurable off-line according to claim 3, wherein: the measuring head (6) is of a tip structure with a conical front end.