CN220602348U - Vernier callipers - Google Patents

Abstract

The application provides a vernier caliper, relates to cylinder work piece external diameter measurement technical field. The electronic equipment comprises a main scale, a vernier and a first wear-resistant piece; the vernier is sleeved on the main scale in a sliding way, and an accommodating space is formed between one side of the main scale, facing the measuring jaw of the main scale, and the vernier; the first wear-resistant piece is arranged on one side of the main scale, which is provided with the measuring claw, and is at least partially arranged in the accommodating space. The technical scheme of this application, first wearing part sets up in accommodation space, can avoid dismantling repeatedly to first wearing part, provides the space for the slip of vernier through accommodation space, can be when the vernier is in zero position or measurement maximum value respectively, can need not the dismouting and can realize the abrasionproof of main scale and decrease the guard action, and is simple and convenient, practices thrift the cost.

Description

Vernier callipers

Technical Field

The application relates to the technical field of outer diameter measurement of cylindrical workpieces, in particular to a vernier caliper.

Background

When the outer diameter of the cylindrical workpiece is measured, the minimum value of the outer diameter of the workpiece is required to be measured and used as the outer diameter size of the workpiece, and then the outer diameter size is compared with a preset value to determine whether the cylindrical workpiece meets the use requirement. The usual measurement methods are: and a digital vernier caliper is adopted, a inspector holds the caliper on the outer wall of the cylindrical workpiece by one hand, then the other hand rotates the workpiece for at least one circle, the minimum value in the circumferential direction is determined as the outer diameter size of the workpiece through the hand feeling and the digital reading of the digital vernier caliper, and the obtained minimum value is smaller than or equal to the minimum value measured three times through a 120-degree angle, so that the accuracy is higher. However, this method of measuring the outer diameter has the disadvantage that when the caliper rotates in the circumferential direction of the workpiece, the two measuring jaws and the bottom of the main scale need to contact the workpiece, resulting in wear of these parts during the measurement. Especially, the hardness of the main scale is not high, when the main scale is detected in a large scale, the main scale is worn very greatly, and when the vernier caliper is used for measuring the worn part of the main scale, the measuring error caused by the instability of the vernier is easily caused, the detection result is influenced, and even the caliper is scrapped, so that the cost is increased.

In the prior art, a main scale is protected through a wear-resistant clamping block, and the clamping block is detachably clamped on the main scale between two measuring jaws. Because the fixture block is relatively independent with the main scale, and occupies the removal space of vernier, during the use, need take off the fixture block from main scale right side section, the right side of vernier promptly, the card again needs to put back the fixture block in main scale left side section, the left side of vernier promptly after the use, just can fold the vernier, and whole process needs to dismantle the fixture block repeatedly, leads to the operation inconvenient.

Therefore, there is a need for a vernier caliper that solves at least the above-mentioned problems.

Disclosure of Invention

The purpose of this application is to provide a slide caliper to solve for preventing main scale wearing and tearing, wear-resisting fixture block use inconvenient problem.

In order to solve the technical problems, the embodiments of the present application provide the following technical solutions:

the embodiment of the application provides a vernier caliper, which comprises a main scale, a vernier and a first wear-resistant piece; the vernier is sleeved on the main scale in a sliding manner, and an accommodating space is formed between one side of the main scale, facing the measuring jaw of the main scale, and the vernier; the first wear-resistant piece is arranged on one side of the main scale, which is provided with the measuring jaw, and is at least partially arranged in the accommodating space.

In some embodiments, the main scale comprises a first surface and a second surface arranged opposite to each other, the first surface being provided with a scale; the first wear-resistant piece is detachably connected with the main scale and does not protrude from the first surface and the second surface.

In some embodiments, the accommodation space penetrates the cursor in a sliding direction of the cursor.

In some embodiments, the first wear member is bonded or magnetically attached to the main scale.

In some embodiments, the first wear member is connected to the main scale by a clamping structure; the first wear-resisting part is provided with a clamping part, the third surface of the main scale is provided with a butt joint part, and the clamping part is matched with the butt joint part so as to limit the displacement of the first wear-resisting part relative to the main scale.

In some embodiments, the main scale is provided with a limit groove, and the limit groove is arranged along the sliding direction of the cursor; the vernier is provided with a moving part which is connected in the limiting groove and used for limiting the displacement of the vernier and the main ruler in the vertical direction.

In some embodiments, the first wear member is disposed along a length of the main scale, and the first wear member is at least partially within the receiving space when the cursor slides relative to the main scale to a minimum or maximum measurement.

In some embodiments, the plurality of first wear-resistant pieces are arranged at intervals along the sliding direction of the cursor, and the distance between two adjacent first wear-resistant pieces is smaller than the length of the cursor along the sliding direction.

In some embodiments, the first wear-resistant member includes a plurality of first wear-resistant units, and the plurality of first wear-resistant units are stacked in a direction perpendicular to a sliding direction of the cursor.

In some embodiments, the main scale is provided with a first measuring jaw, the vernier is provided with a second measuring jaw corresponding to the first measuring jaw, and the first measuring jaw is matched with the second measuring jaw to clamp a workpiece to be measured; wherein, the first measuring jaw and the second measuring jaw are provided with second wearing parts respectively on opposite surfaces.

Compared with the prior art, the vernier caliper provided by the application is provided with the accommodation space between the vernier and the main scale, the first wear-resisting part is arranged in the accommodation space, and the first wear-resisting part is arranged on one side of the main scale, which is provided with the measuring claw, namely, the surface of the main scale, which is used for being contacted with the workpiece to be measured, so that the workpiece to be measured can be prevented from wearing the main scale. The first wear-resisting part is arranged in the accommodating space, repeated disassembly of the first wear-resisting part can be avoided, space is provided for sliding of the vernier through the accommodating space, and the wear-resisting protection effect on the main ruler can be achieved without disassembly and assembly when the vernier is respectively in a zero position or a maximum value is measured, so that the cost is saved.

Drawings

The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings, in which like reference numerals refer to similar or corresponding parts and in which:

FIG. 1 shows a schematic structural view of a vernier caliper according to an exemplary embodiment of the present application;

FIG. 2 shows a cross-sectional view taken along A-A of FIG. 1;

FIG. 3 shows a front view of a vernier in a vernier caliper according to an exemplary embodiment of the present application;

FIG. 4 shows a side view of a vernier in a vernier caliper according to an exemplary embodiment of the present application;

FIG. 5 shows a front view of the main scale in the vernier caliper according to an exemplary embodiment of the present application;

FIG. 6 shows a side view of the main scale in the vernier caliper according to an exemplary embodiment of the present application;

FIG. 7 shows a first schematic distribution of a first wear member on a main scale in a vernier caliper according to an exemplary embodiment of the present application;

FIG. 8 shows a second distribution schematic of the first wear member on the main scale in the vernier caliper of the exemplary embodiment of the present application;

fig. 9 shows a third schematic distribution of the first wear part on the main scale in the vernier caliper according to an exemplary embodiment of the present application.

Reference numerals illustrate:

1. a main scale; 2. a cursor; 3. an accommodation space; 4. a first wear member; 5. a limit groove; 6. a moving part; 7. a first measuring jaw; 8. a second measuring jaw; 9. a first wear resistant unit; 10. and (5) cushion blocks.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.

Example 1

In order to solve the problems existing in the prior art, as shown in fig. 1 to 8, an embodiment of the present application provides a vernier caliper, including a main scale 1, a vernier 2 and a first wear part 4; the vernier 2 is sleeved on the main scale 1 in a sliding manner, and an accommodating space 3 is formed between one side of the main scale 1 with the measuring claw and the vernier 2; the first wear part 4 is detachably arranged on the side of the main scale 1 with the measuring jaw and is at least partially arranged in the accommodating space 3.

The embodiment of the application provides a slide caliper, through set up accommodation space 3 between vernier 2 and main scale 1 to set up first wear-resisting piece 4 in this accommodation space 3, and first wear-resisting piece 4 establish in main scale 1 one side that has the measuring jaw, main scale 1 is used for the surface with the external diameter work piece contact that awaits measuring promptly, thereby can avoid the wearing and tearing of external diameter work piece to await measuring to main scale 1. The first wear-resisting part 4 is arranged in the accommodating space 3, repeated disassembly of the first wear-resisting part 4 can be avoided, the accommodating space 3 provides space for sliding of the vernier 2, and the wear-resisting protection effect on the main scale 1 can be achieved without disassembling the first wear-resisting part 4 when the vernier 2 is in a zero position or a maximum value is measured, so that simplicity, convenience and cost are saved.

In the embodiment of the application, the main scale 1 comprises a first surface and a second surface which are oppositely arranged, and the first surface is provided with scales; the first wear-resistant piece 4 is detachably connected with the main scale 1 and does not protrude from the first surface and the second surface.

The main scale 1 is a flat structure, the first surface and the second surface are two opposite surfaces of the host respectively, the first surface of the main scale 1 is used as an operation front, scales are arranged along the main scale 1 and used for displaying the size or providing reference during measurement, and the first wear-resistant piece 4 is aligned or flush with the first surface and the second surface respectively, so that interference with the cursor 2 is avoided when the cursor 2 moves along the main scale 1, and the operation of the cursor 2 is facilitated. Alternatively, the first wear member 4 is concave in shape compared to the first or second surface to facilitate movement of the cursor 2. The first wear-resistant member 4 is used for contacting with a workpiece to be measured, and keeps the main scale 1 from being worn, so that the first wear-resistant member 4 does not protrude from the first surface and the second surface of the main scale 1 so as not to affect the movement of the cursor 2.

In the embodiment of the present application, the accommodation space 3 penetrates the cursor 2 along the sliding direction of the cursor 2. Specifically, the third surface of the cursor 2 has a groove for the main scale 1 to pass through, the groove penetrates the cursor 2 along the sliding direction of the cursor 2, the main scale 1 slides in the groove relative to the cursor 2, and the groove forms an accommodating space 3 with the side of the main scale 1 having the measuring jaw, so that the main scale 1 can slide relative to the cursor 2. The first wear-resistant part 4 is arranged in the accommodating space 3 and attached to the main scale 1, so that the first wear-resistant part 4 cannot be touched when the cursor 2 slides along the main scale 1, and meanwhile, the first wear-resistant part 4 can be contacted with a workpiece to be detected when the outer diameter of the cylindrical workpiece is detected, and the main scale 1 is protected from being worn. The third surface of the cursor 2 is the inner surface of the cursor 2 facing the main scale 1.

In the embodiment of the application, the groove is a through groove penetrating along the sliding direction of the vernier 2, and comprises a first part and a second part which are arranged up and down, wherein the first part is used for penetrating the main scale 1, and the second part is used for forming an accommodating space 3 with the main scale 1.

In the embodiment of the application, when the vernier 2 is sleeved on the main scale 1, the groove forms an accommodating space 3 with the bottom of the main scale 1, or the groove forms a gap with the bottom, the first surface and the second surface of the main scale 1 respectively, and the accommodating space 3 is formed through the three-surface gap, so that the sliding of the vernier 2 cannot be influenced due to the assembly deviation when the first wear-resisting part 4 is arranged on the main scale 1.

In the embodiment of the present application, as shown in fig. 2, a spacer 10 may be disposed between the groove and the top of the main scale 1, for further protecting the main scale 1.

The first wear-resistant part 4 is detachably connected with the main scale 1 so that the first wear-resistant part 4 can be detached and replaced in time when the wear is large.

The first wear part 4 and the main scale 1 may be detachably connected in various connection manners, for example:

in the present embodiment, the first wear part 4 is adhesively or magnetically connected to the main scale 1.

The first wear-resistant part 4 may be fixed to the main scale 1 by using an adhesive, for example, a double-sided adhesive tape, a back adhesive, or the like, and may be fixed between the first wear-resistant part 4 and the main scale 1. Through the mode of bonding and fixing, the first wear-resisting part 4 and the main scale 1 do not need to be additionally processed, the use is convenient and simple, the cost is low, and the residual bonding layer only needs to be scraped and then bonded again during replacement.

Or, the first wear-resistant piece 4 can be fixed with the main scale 1 by adopting a magnetic attraction mode, the main scale 1 is made of metal, and the magnetic attraction piece, such as a magnet sheet, is embedded on the surface of the first wear-resistant piece 4 facing the main scale 1, so that the first wear-resistant piece 4 is fixed on the main scale 1 by magnetic attraction and is easy to detach. The first wear-resistant part 4 can be metal, the magnetic attraction part is connected to the surface of the first wear-resistant part 4 facing the main scale 1, and the surface of the first wear-resistant part 4 can be processed to form a groove for being matched with the magnetic attraction part to form a flat surface so as to ensure the flatness connected with the main scale 1, and the magnetic attraction part is respectively attracted to the first wear-resistant part 4 and the main scale 1. The first wear part 4 may also be non-metallic.

The first wear-resistant piece 4 is adhered to or magnetically attracted with the main scale 1, and no additional processing on the main scale 1 is needed, so that the replacement cost is saved.

In the embodiment of the present application, the first wear part 4 is connected with the main scale 1 through a clamping structure; wherein, first wearing part 4 is provided with the joint spare, and the third surface of main scale 1 is provided with the butt joint spare, joint spare and butt joint spare cooperation to restrict the displacement of first wearing part 4 for main scale 1.

The first wear-resisting part 4 is fixed with the main scale 1 through the joint structure, and joint spare and interfacing part can be hole axle cooperation, for example, the joint spare is the reference column, and the interfacing part is the locating hole, and the reference column passes through interference fit location with the locating hole, on the one hand can be convenient for the dismantlement of first wear-resisting part 4 change, on the other hand can improve the connection stability of first wear-resisting part 4. The first wear-resistant member 4 may be made of metal such as copper and aluminum, or may be made of nonmetal such as plastic, or wood.

Because the accommodation space 3 is formed between the vernier 2 and the main scale 1, in order to ensure smooth sliding of the vernier 2, the first wear-resisting piece 4 is not completely attached to the accommodation space 3, but forms a gap, so that the vernier 2 can shake in the vertical direction to affect the measurement accuracy, and therefore, in the embodiment of the application, a limit groove 5 is arranged on the main scale 1, and the limit groove 5 is arranged along the sliding direction of the vernier 2; the cursor 2 is provided with a moving part 6, and the moving part 6 is connected in the limit groove 5 and is used for limiting the displacement of the cursor 2 and the main scale 1 in the vertical direction.

The vernier caliper provided by the embodiment of the application can be a conventional manual reading vernier caliper, also can be a digital display vernier caliper, and can display the measured size numerical value by utilizing a display screen, and is not particularly limited.

When the vernier caliper provided by the embodiment of the application is a conventional manual reading vernier caliper or a digital display vernier caliper, the limiting groove 5 is formed in the second surface of the main scale 1, namely the surface opposite to the surface where the scale is located, so that measurement reading is not affected. The limit groove 5 is arranged along the sliding direction of the cursor 2, namely the length direction of the main scale 1, and the moving part 6 is of a bump structure and is inserted into the limit groove 5. The bottom of the recess of cursor 2 forms accommodation space 3 with main scale 1, and the top of the recess of cursor 2 and the top contact of main scale 1, and carries out spacingly to cursor 2 in vertical direction through the cooperation of remove portion 6 and spacing groove 5 to avoid cursor 2 to rock, in order to guarantee measurement accuracy.

When the vernier caliper has a depth gauge, the limiting groove 5 may be a groove on the main gauge 1 for matching with the depth gauge, and the moving part 6 may be a depth gauge, so as to limit the vernier 2 in the vertical direction. When the vernier caliper does not have a depth gauge, it is necessary to groove the second surface of the main scale 1, and provide a moving part 6 on the vernier 2, and the moving part 6 may be at least one of those provided along the sliding direction of the vernier 2.

In the embodiment of the present application, the first wear-resistant member 4 is disposed along the length direction of the main scale 1, and when the cursor 2 slides to the minimum measurement value or the maximum measurement value relative to the main scale 1, the first wear-resistant member 4 is at least partially located in the accommodating space 3.

The first wear-resistant piece 4 can be arranged along the length direction of the main scale 1 and can cover the whole bottom surface of the main scale 1, so that when the cursor 2 slides, the first wear-resistant piece 4 is always positioned in the accommodating space 3, and the stability of measuring precision and the attractiveness can be ensured.

As shown in fig. 7, the first wear-resistant member 4 may also cover part of the main scale 1, for example, when the cursor 2 moves a certain distance, the first wear-resistant member 4 is all exposed on the main scale 1, so that the cost of the first wear-resistant member 4 can be saved. Since the cylindrical workpiece is in contact with the main scale 1 only at a single point, it is still possible to ensure that the workpiece is in contact with the first wear part 4, rather than directly with the main scale 1.

In order to further guarantee the anti-wear effect of the main scale 1 and to maintain the stability of the movement of the cursor 2, in the embodiment of the present application, the first wear-resistant element 4 is arranged along the length direction of the main scale 1 and can be partially located in the containing space 3 at least when the cursor 2 is located at the minimum and maximum of the measurement.

As shown in fig. 8, the number of the first wear-resistant pieces 4 is plural, the first wear-resistant pieces 4 are arranged at intervals along the sliding direction of the cursor 2, and the distance between two adjacent first wear-resistant pieces 4 is smaller than the length of the cursor 2 along the sliding direction, so that the distance between the cursor 2 and the main scale 1 is stable, and the measurement accuracy is ensured.

The first wear-resisting parts 4 are arranged at intervals, so that materials can be saved, and the wear-resisting parts are convenient to detach and replace without being replaced integrally.

When the first wear-resisting parts 4 are multiple, the first wear-resisting parts 4 beside the main scale 1 can be replaced when the workpiece of the first wear-resisting parts 4 contacted with the workpiece to be detected in the middle of the main scale is worn, so that the part containing cost can be reduced, and the replacement convenience is improved.

As shown in fig. 9, in the embodiment of the present application, the first wear member 4 includes a plurality of first wear units 9, and the plurality of first wear units 9 are stacked in a direction perpendicular to the sliding direction of the cursor 2.

According to the use requirement, a plurality of first wear-resisting units 9 can be arranged in a stacking way, so that the wear-resisting units 9 at the bottommost layer can be timely removed after being worn, and a new first wear-resisting piece 4 is not required to be replaced. Wherein the plurality of first wear-resistant units 9 can be fixed by gluing or magnetic attraction.

In the embodiment of the application, the main scale 1 is provided with a first measuring jaw 7, the vernier 2 is provided with a second measuring jaw 8 corresponding to the first measuring jaw 7, and the first measuring jaw 7 is matched with the second measuring jaw 8 to clamp a workpiece to be measured; wherein the opposite surfaces of the first measuring jaw 7 and the second measuring jaw 8 are respectively provided with a second wear part.

The second wear part can be integrally formed with the first measuring jaw 7 and the second measuring jaw 8, or fixed by gluing or magnetic attraction. The wear resistance of the measuring jaw can be improved through the second wear-resistant piece, and the service life of the vernier caliper is further prolonged.

The embodiment of the application provides a slide caliper, has improved slide caliper's main scale 1's life through detachably first wearing part 4 to can be applicable to the measurement to the large batch external diameter of cylinder work piece, can save slide caliper's purchase cost. For example, the standard is 300mm digital vernier caliper, the purchase cost is 700-1000 yuan/day, and 20-30 yearly is scrapped due to abrasion of the main caliper 1, and the total number is 14000-30000 yuan, so that the vernier caliper provided by the embodiment of the application improves the service life of the main caliper 1 through the first abrasion-resistant piece 4, and the purchase cost of the caliper can be saved by 20000-30000 yuan/year.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. The vernier caliper is characterized by comprising a main scale, a vernier and a first wear-resistant piece;

the vernier is sleeved on the main scale in a sliding manner, and an accommodating space is formed between one side of the main scale with the measuring claw and the vernier;

the first wear-resistant piece is arranged on one side of the main scale, which is provided with the measuring jaw, and is at least partially arranged in the accommodating space.

2. Vernier caliper according to claim 1, characterized in that,

the main scale comprises a first surface and a second surface which are oppositely arranged, and the first surface is provided with scales;

the first wear-resistant piece is detachably connected with the main scale and does not protrude from the first surface and the second surface.

3. Vernier caliper according to claim 1, characterized in that,

the accommodation space penetrates through the cursor along the sliding direction of the cursor.

4. A vernier caliper as claimed in any one of claims 1 to 3, characterized in that,

the first wear-resistant piece is bonded or magnetically attracted with the main scale.

5. A vernier caliper as claimed in any one of claims 1 to 3, characterized in that,

the first wear-resistant piece is connected with the main scale through a clamping structure;

the first wear-resisting part is provided with a clamping part, the third surface of the main scale is provided with a butt joint part, and the clamping part is matched with the butt joint part so as to limit the displacement of the first wear-resisting part relative to the main scale.

6. Vernier caliper according to claim 1, characterized in that,

a limit groove is formed in the main scale, and the limit groove is formed along the sliding direction of the cursor;

the vernier is provided with a moving part which is connected in the limiting groove and used for limiting the displacement of the vernier and the main ruler in the vertical direction.

7. Vernier caliper according to claim 1, characterized in that,

the first wear-resistant part is arranged along the length direction of the main scale, and is at least partially positioned in the accommodating space when the cursor slides to a minimum measurement value or a maximum measurement value relative to the main scale.

8. Vernier caliper according to claim 1 or 7, characterized in that,

the plurality of first wear-resisting parts are arranged at intervals along the sliding direction of the cursor, and the distance between two adjacent first wear-resisting parts is smaller than the length of the cursor along the sliding direction.

9. Vernier caliper according to claim 1 or 7, characterized in that,

the first wear-resistant piece comprises a plurality of first wear-resistant units, and the first wear-resistant units are stacked in the perpendicular direction of the sliding direction of the cursor.

10. Vernier caliper according to claim 1, characterized in that,

the main scale is provided with a first measuring jaw, the vernier is provided with a second measuring jaw corresponding to the first measuring jaw, and the first measuring jaw is matched with the second measuring jaw to clamp a workpiece to be tested; wherein, the first measuring jaw and the second measuring jaw are provided with second wearing parts respectively on opposite surfaces.