CN210293009U

CN210293009U - Calibration device of vernier caliper

Info

Publication number: CN210293009U
Application number: CN201921384885.4U
Authority: CN
Inventors: 黄意
Original assignee: Kaili University
Current assignee: Kaili University
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-04-10
Anticipated expiration: 2029-08-26

Abstract

The utility model provides a calibration device of a vernier caliper, which comprises a vernier caliper main body, a T-shaped slide block and a second threaded through hole; the middle part of the front end face of the main ruler in the vernier caliper body is provided with a T-shaped sliding groove, and the vernier caliper body is connected with a fixed ruler in a sliding mode through the T-shaped sliding groove; the battery case left end face is equipped with control switch, and control switch and LED lamp strip all are connected for ordinary electrical property with the battery case. The scale is installed at slide caliper main part main scale front end position, through being equipped with the scale pointer with scale downside middle part, it is more convenient when making the scale to scale on slide caliper main part main scale, and the size marking in the size digit alignment slide caliper main part on the rethread scale, the error value of looking up the work piece size that makes the slide caliper main part can be quick when measuring the work piece size, thereby make the survey crew need not to calculate the difference and just can obtain the error value, slide caliper's scale measurement of efficiency has been improved.

Description

Calibration device of vernier caliper

Technical Field

The utility model belongs to the technical field of slide caliper, more specifically say, in particular to slide caliper's calibration device.

Background

A vernier caliper is a measuring tool for measuring length, inner diameter, outer diameter and depth. The vernier caliper consists of a main ruler and a vernier attached to the main ruler and capable of sliding. The main scale is generally in millimeter units, the vernier has 10, 20 or 50 divisions, and the vernier caliper can be divided into ten-division vernier caliper, twenty-division vernier caliper, fifty-division vernier caliper and the like according to the division, wherein the vernier is 9mm in 10 divisions, 19mm in 20 divisions and 49mm in 50 divisions. The main scale and the vernier of the vernier caliper are provided with two pairs of movable measuring claws, namely an inner measuring claw and an outer measuring claw, wherein the inner measuring claw is generally used for measuring the inner diameter, and the outer measuring claw is generally used for measuring the length and the outer diameter.

As in application No.: 201822087582.8 the utility model discloses a slide caliper uses in the measurement field, and its technical scheme main points are: the vernier caliper comprises a caliper body and a vernier scale connected to the caliper body in a sliding mode, wherein a placing groove is formed in the caliper body along the length direction, a plurality of elastic clamping pieces are arranged in the placing groove along the length direction of the caliper body, and a plurality of stress pieces which are abutted against the elastic clamping pieces are arranged on the vernier scale; when the vernier scale moves to any position of the caliper body, the stress sheet is abutted against one or a plurality of elastic clamping sheets; has the technical effects that: the elastic card can apply a pressure to the stress sheet and the vernier, so that the possibility that the measuring precision is reduced due to the gap between the measuring part of the vernier and the object to be measured is reduced, and the measuring precision of the vernier caliper is improved.

Based on the above patent search, and in conjunction with the prior art equipment discovery, a factory typically needs to measure the dimensions of workpieces using a vernier caliper when producing the workpieces, and typically measures the workpieces at an acceptable standard dimension when measuring the dimensions of the workpieces. The existing vernier caliper has the following defects in the actual use process, such as: 1. when the existing vernier caliper measures an unqualified-size workpiece, the error can be obtained only by calculating the measured value of the vernier caliper by contrasting a calibration value, and then whether the measured size of the workpiece is qualified or not is determined by contrasting the error range, so that time and labor are wasted, and an error is easily caused during calculation; 2. when the existing vernier caliper is used for measuring a workpiece in a dark environment, the size marking line is not clear enough, and the work efficiency of the existing vernier caliper is greatly reduced.

Therefore, in view of the above, the present invention is to provide a calibration device for a vernier caliper, which is improved in view of the existing structure and defects, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a slide caliper's calibration device to solve current slide caliper and still have following not enough in the use of reality, if: 1. when the existing vernier caliper measures an unqualified-size workpiece, the error can be obtained only by calculating the measured value of the vernier caliper by contrasting a calibration value, and then whether the measured size of the workpiece is qualified or not is determined by contrasting the error range, so that time and labor are wasted, and an error is easily caused during calculation; 2. when the existing vernier caliper measures a workpiece in a dark environment, the size marking line is not clear enough, and the problem of working efficiency in workpiece measurement is greatly reduced.

The utility model discloses vernier caliper's calibration device's purpose and efficiency are reached by following specific technological means:

a calibration device of a vernier caliper comprises a vernier caliper body, a scale, a calibration pointer, a size number, a first fastening screw, a sliding column, a rectangular magnifier, a sliding block, a second fastening screw, a battery box, a button battery, a control switch, a circular through hole, a first threaded through hole, an LED light bar, a T-shaped sliding groove, a T-shaped sliding block and a second threaded through hole; the middle part of the front end face of the main ruler in the vernier caliper body is provided with a T-shaped sliding groove, and the vernier caliper body is connected with a fixed ruler in a sliding mode through the T-shaped sliding groove; the rear end face of the fixed scale is provided with a T-shaped sliding block, and the T-shaped sliding block is connected with a T-shaped sliding groove in a sliding manner; the middle part of the front end surface of the fixed scale is provided with one second threaded through hole penetrating through the T-shaped sliding block, and the front end of the fixed scale is connected with a first fastening screw through the second threaded through hole; the upper part of the front end face of the fixed scale is fixedly connected with two sliding columns in a bilateral symmetry manner; the left side and the right side of the upper end surface of the rectangular magnifier are fixedly connected with one sliding block, and the middle parts of the front end surfaces of the two sliding blocks are respectively provided with one circular through hole; the center parts of the upper end surfaces of the two sliding blocks are respectively provided with one first threaded through hole communicated with the interior of the circular through hole, and the upper ends of the two sliding blocks are respectively connected with one second fastening screw through the first threaded through holes; the rectangular magnifier is connected to the outer peripheral surfaces of the two sliding columns in a sliding mode through circular through holes formed in the two sliding blocks, and an LED light bar is installed at the edge of the rear end face of the rectangular magnifier; a battery box is arranged in the middle of the upper end face of the rectangular magnifier, and two button batteries are arranged in the battery box; the battery case left end face is equipped with control switch, and control switch and LED lamp strip all are connected for ordinary electrical property with the battery case.

Furthermore, when the rear thread end of the first fastening screw is tightly attached to the rear side surface inside the T-shaped chute formed in the front end surface of the main ruler of the vernier caliper body, the fixed ruler is in a fixed state on the front end surface of the main ruler of the vernier caliper body.

Furthermore, the central part of the lower side of the fixed scale is provided with one calibration pointer, and nineteen dimension marking lines are arranged on the lower side of the front end face of the fixed scale.

Further, when the lower side thread ends of the two second fastening screws are tightly attached to the outer peripheral surfaces of the two sliding columns respectively, the rectangular magnifier is in a fixed state on the two sliding columns.

Furthermore, every size marking top position that the terminal surface downside was equipped with before the staff gauge all is equipped with one size digit, and nineteen size digits use zero respectively to control both sides evenly distributed about the center.

Furthermore, the LED light bars are distributed in a ring shape at the rear end of the rectangular magnifying glass, and the LED light bars adopt the LED light bars with the models of OPPLE 12-LE-38465 which are common in the market.

Compared with the prior art, the utility model discloses following beneficial effect has:

the scale is installed at slide caliper main part main scale front end position, through being equipped with the scale pointer with scale downside middle part, it is more convenient when making the scale to scale on slide caliper main part main scale, and the size marking in the size digit alignment slide caliper main part on the rethread scale, the error value of looking up the work piece size that makes the slide caliper main part can be quick when measuring the work piece size, thereby make the survey crew need not to calculate the difference and just can obtain the error value, slide caliper's scale measurement of efficiency has been improved.

Rectangular magnifier installs two slip post outer peripheral faces, through two sliding blocks with rectangular magnifier upper end fixedly connected with, make the focus adjustment around going on two slip posts that rectangular magnifier can be nimble, and through the amplification of rectangular magnifier, it is more clear when making the numerical value on slide caliper main part and the scale look over, and through installing LED lamp strip with rectangular magnifier rear end face edge, make the numerical value on slide caliper main part and the scale also can be clearly looked over under darker environment to the slide caliper main part, the intuitionistic when having improved slide caliper and measuring the work piece size.

Drawings

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

Fig. 2 is a schematic diagram of a partially enlarged structure at a in fig. 1 according to the present invention.

Fig. 3 is a schematic view of the rectangular magnifier according to the present invention.

Fig. 4 is a schematic view of the rear axle of the rectangular magnifying glass of the present invention.

Fig. 5 is a schematic diagram of a partially enlarged structure at B in fig. 4 according to the present invention.

Fig. 6 is a schematic axial view of the calibration scale of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a vernier caliper body; 2. scaling; 201. calibrating a pointer; 202. a size number; 3. a first fastening screw; 4. a sliding post; 5. a rectangular magnifier; 501. a slider; 6. a second fastening screw; 7. a battery case; 8. a button cell; 9. a control switch; 10. a circular through hole; 11. a first threaded through hole; 12. an LED light bar; 13. a T-shaped chute; 14. a T-shaped slider; 15. a second threaded through hole.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 6:

the utility model provides a vernier caliper's calibration device, including vernier caliper main part 1, scale 2, calibration pointer 201, size digit 202, first fastening screw 3, sliding column 4, rectangle magnifying glass 5, sliding block 501, second fastening screw 6, battery case 7, button cell 8, control switch 9, circular through-hole 10, first screw through-hole 11, LED lamp strip 12, T type spout 13, T type slider 14 and second screw through-hole 15; a T-shaped sliding groove 13 is formed in the middle of the front end face of a main ruler in the vernier caliper body 1, and the vernier caliper body 1 is connected with a fixed ruler 2 in a sliding mode through the T-shaped sliding groove 13; the rear end face of the fixed scale 2 is provided with a T-shaped sliding block 14, and the T-shaped sliding block 14 is connected with a T-shaped sliding groove 13 in a sliding manner; the middle part of the front end face of the fixed scale 2 is provided with one second threaded through hole 15 penetrating through the T-shaped sliding block 14, as shown in the attached drawing 6, and the front end of the fixed scale 2 is connected with a first fastening screw 3 through the second threaded through hole 15; the upper part of the front end face of the fixed scale 2 is fixedly connected with two sliding columns 4 in a bilateral symmetry manner; the left side and the right side of the upper end face of the rectangular magnifier 5 are fixedly connected with one sliding block 501, as shown in fig. 3, and the middle parts of the front end faces of the two sliding blocks 501 are provided with one circular through hole 10; the center of the upper end faces of the two sliding blocks 501 is provided with one first threaded through hole 11 communicated with the inside of the circular through hole 10, and the upper ends of the two sliding blocks 501 are connected with one second fastening screw 6 through the first threaded through hole 11, as shown in fig. 1; the rectangular magnifier 5 is slidably connected to the outer peripheral surfaces of the two sliding columns 4 through circular through holes 10 formed in the two sliding blocks 501, and an LED light bar 12 is mounted at the edge of the rear end face of the rectangular magnifier 5, as shown in FIG. 3; a battery box 7 is arranged in the middle of the upper end face of the rectangular magnifier 5, and two button batteries 8 are arranged in the battery box 7, as shown in the accompanying fig. 2-3; the left end face of the battery box 7 is provided with a control switch 9, and the control switch 9 and the LED light bar 12 are both electrically connected with the battery box 7.

When the thread end at the rear side of the first fastening screw 3 is tightly attached to the rear side surface inside the T-shaped chute 13 arranged on the front end surface of the main scale of the vernier caliper body 1, the fixed scale 2 is in a fixed state on the front end surface of the main scale of the vernier caliper body 1, so that the fixed scale 2 is more stable during calibration, and the error caused by the displacement of the fixed scale 2 in the using process of the vernier caliper is reduced.

The calibration pointer 201 is arranged at the center of the lower side of the fixed scale 2, as shown in fig. 5, nineteen dimension marks are arranged on the lower side of the front end face of the fixed scale 2, and the dimension marks on the vernier caliper body 1 are aligned with the dimension marks on the fixed scale 2, so that a measurer can obtain an error value without calculating a difference value, and the calibration measurement efficiency of the vernier caliper is improved.

Wherein, when two 6 downside threaded ends of second fastening screw respectively with two when the 4 outer peripheral faces of slip post closely paste mutually, rectangle magnifying glass 5 is two for fixed state on the slip post 4, through with two 5 upper ends fixedly connected with of rectangle magnifying glass sliding block 501, make two that rectangle magnifying glass 5 can be nimble carry out the focus regulation around on the slip post 4, and through the amplification of rectangle magnifying glass 5, it is more clear when making the numerical value on vernier caliper main part 1 and the fixed scale 2 look over.

The upper part of each size marking line arranged on the lower side of the front end face of the fixed scale 2 is provided with one size number 202, and nineteen size numbers 202 are respectively uniformly distributed towards the left side and the right side by taking zero as the center, as shown in the attached drawing 5, the vernier caliper main body 1 is more visual when measuring the error size of a workpiece, and the calibration measurement efficiency of the vernier caliper is further improved.

Wherein, LED lamp strip 12 is the annular form at 5 rear end faces of rectangle magnifying glass and distributes, as shown in figure 3, and LED lamp strip 12 adopts the LED lamp strip of current OPPLE tablet 12-LE-38465 model on the market, through the amplification effect of rectangle magnifying glass 5, it is clearer when making the numerical value on slide caliper main part 1 and the scale 2 look over, and through installing LED lamp strip 12 with 5 rear end face edge parts of rectangle magnifying glass, make the numerical value on slide caliper main part 1 and the scale 2 also can be clearly looked over to slide caliper main part 1 under darker environment, the intuitiveness when slide caliper measures the work piece size has been improved.

The specific use mode and function of the embodiment are as follows:

in the utility model, when measuring the size of the calibrated workpiece, the first fastening screw 3 is manually rotated anticlockwise to make the fixed scale 2 lose fixation on the main ruler of the vernier caliper main body 1, and then the fixed scale 2 can flexibly perform left-right sliding adjustment on the main ruler of the vernier caliper main body 1 through the T-shaped slider 14; then, the calibration pointer 201 aligns the marking line on the main scale of the vernier caliper body 1, so that the scaling scale 2 is more convenient to calibrate, and the first fastening screw 3 is manually rotated clockwise, so that the scaling scale 2 is fixed on the main scale of the vernier caliper body 1 and calibrated; sliding a vernier on the vernier caliper body 1 left and right, and measuring the size of the workpiece through a measuring jaw on the vernier caliper body 1; aligning the vernier scale mark on the vernier caliper body 1 to the main scale mark on the vernier caliper body 1 to measure the size of the workpiece; finally, the vernier scale marking on the vernier caliper body 1 is aligned with the marking of the fixed scale 2 and the size number 202, so that the error value between the size of the workpiece and the size of the fixed scale can be obtained without calculation, and the calibration measurement efficiency of the vernier caliper is improved;

when the measuring environment is dark, the control switch 9 is turned on to enable the LED light bar 12 to emit light, so that the dimension marking lines on the vernier caliper body 1 and the fixed scale 2 can be visually checked by a measurer even in the dark environment; and through with rectangle magnifying glass 5 upper end fixedly connected with two sliding block 501 makes rectangle magnifying glass 5 can be nimble two carry out focus adjustment around on the slip post 4, moreover through the amplification of rectangle magnifying glass 5, more clear when making the numerical value on slide caliper main part 1 and the fixed scale 2 look over.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A calibration device of a vernier caliper is characterized in that: the calibration device of the vernier caliper comprises a vernier caliper body (1), a calibration scale (2), a calibration pointer (201), a size number (202), a first fastening screw (3), a sliding column (4), a rectangular magnifier (5), a sliding block (501), a second fastening screw (6), a battery box (7), a button battery (8), a control switch (9), a circular through hole (10), a first threaded through hole (11), an LED light bar (12), a T-shaped sliding groove (13), a T-shaped sliding block (14) and a second threaded through hole (15); the middle part of the front end face of the main ruler in the vernier caliper body (1) is provided with a T-shaped sliding groove (13), and the vernier caliper body (1) is connected with a fixed scale (2) in a sliding manner through the T-shaped sliding groove (13); the rear end face of the scaling plate (2) is provided with a T-shaped sliding block (14), and the T-shaped sliding block (14) is connected with a T-shaped sliding groove (13) in a sliding mode; the middle part of the front end face of the fixed scale (2) is provided with one second threaded through hole (15) penetrating through the T-shaped sliding block (14), and the front end of the fixed scale (2) is connected with a first fastening screw (3) through the second threaded through hole (15); the upper part of the front end face of the fixed scale (2) is fixedly connected with two sliding columns (4) in a bilateral symmetry manner; the left side and the right side of the upper end face of the rectangular magnifier (5) are fixedly connected with one sliding block (501), and the middle parts of the front end faces of the two sliding blocks (501) are respectively provided with one circular through hole (10); the center of the upper end faces of the two sliding blocks (501) is provided with a first threaded through hole (11) communicated with the interior of the circular through hole (10), and the upper ends of the two sliding blocks (501) are connected with a second fastening screw (6) through the first threaded through hole (11); the rectangular magnifier (5) is slidably connected to the outer peripheral surfaces of the two sliding columns (4) through circular through holes (10) formed in the two sliding blocks (501), and an LED light bar (12) is mounted at the edge of the rear end face of the rectangular magnifier (5); a battery box (7) is arranged in the middle of the upper end face of the rectangular magnifier (5), and two button batteries (8) are arranged in the battery box (7); the LED lamp is characterized in that a control switch (9) is arranged on the left end face of the battery box (7), and the control switch (9) and the LED lamp strip (12) are both electrically connected with the battery box (7) in a common mode.

2. The calibration device for a vernier caliper as claimed in claim 1, wherein: when the thread end at the rear side of the first fastening screw (3) is tightly attached to the rear side surface inside a T-shaped sliding groove (13) formed in the front end surface of the main scale of the vernier caliper body (1), the fixed scale (2) is in a fixed state on the front end surface of the main scale of the vernier caliper body (1).

3. The calibration device for a vernier caliper as claimed in claim 1, wherein: the center part of the lower side of the fixed scale (2) is provided with one calibration pointer (201), and nineteen size marking lines are arranged on the lower side of the front end face of the fixed scale (2).

4. The calibration device for a vernier caliper as claimed in claim 1, wherein: when the lower side thread ends of the two second fastening screws (6) are tightly attached to the outer peripheral surfaces of the two sliding columns (4) respectively, the rectangular magnifier (5) is in a fixed state on the two sliding columns (4).

5. The calibration device for a vernier caliper as claimed in claim 1, wherein: every size marking top position that the terminal surface downside was equipped with before scale (2) all is equipped with one size digit (202), and nineteen size digit (202) use zero respectively to control both sides evenly distributed about the center.

6. The calibration device for a vernier caliper as claimed in claim 1, wherein: the LED light bars (12) are distributed in a ring shape on the rear end face of the rectangular magnifier (5), and the LED light bars (12) adopt the LED light bars with the models of OPPLE 12-LE-38465 which are common in the market.