CN217585648U

CN217585648U - Digital display comparator

Info

Publication number: CN217585648U
Application number: CN202221765408.4U
Authority: CN
Inventors: 贺兴潭
Original assignee: MAHR PRECISION METROLOGY (SUZHOU) Ltd
Current assignee: MAHR PRECISION METROLOGY (SUZHOU) Ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-10-14
Anticipated expiration: 2032-07-07

Abstract

The utility model discloses a digital display comparator, which comprises a meter frame shell and a measuring rod movably arranged on the meter frame shell; the side wall of the meter frame shell is provided with a through hole, the position of the through hole is connected with a lifting wire, and the lifting wire can be manually operated to do telescopic action along the through hole; the fixed grid assembly is fixed on the measuring rod; the circuit board is arranged on the meter frame shell and is opposite to the fixed grid component, and an induction fixed grid corresponding to the fixed grid component is arranged on the circuit board and is used for displaying the displacement of the measuring rod on the display screen; the lifting assembly is movably arranged in the meter frame shell and positioned above the through hole, and can be abutted against the measuring rod under the extending action of the lifting line to push the measuring rod to be lifted and return when the lifting line retracts to release the pushing of the measuring rod; one end of the reset spring is fixed on the fixed grid assembly, the other end of the reset spring is fixed on the inner wall of the meter frame shell, and the reset spring applies elastic force for enabling the measuring rod to descend and reset. The stability and the reliability are improved, and the measurement is more convenient.

Description

Digital display comparator

Technical Field

The utility model relates to a measuring equipment technical field specifically relates to a digital display comparator.

Background

In the measuring process, in order to improve the measuring precision as much as possible, the influence of human factors in the measuring process needs to be continuously reduced, and the measuring head needs to be moved in a manual direct contact manner when the existing digital display meter is used for measuring, so that a series of measuring errors such as temperature are increased, the moving force is not easy to control in the manual contact type measuring head moving process, the position of the whole digital display meter is possibly changed, and the measuring stability and reliability are reduced.

Under the measuring environment in some little spaces, lever hoisting device need occupy great space again, and the manual gauge head that can not directly move just needs to accomplish with the help of the instrument such as lifting wire, and present digital display table moving mechanism is difficult to accomplish the removal of digital display table gauge head with the help of the lifting wire.

SUMMERY OF THE UTILITY MODEL

At least one to the technical problem that above-mentioned exists, the utility model aims at providing a digital display comparator can accomplish the removal of digital display table side head with the help of the lifting wire, need not hand direct contact and removes the side head, and stability is high, the reliability is also high, and it is more convenient to measure.

The technical scheme of the utility model is that:

the utility model aims to provide a digital display comparator, which comprises a meter frame shell and a measuring rod movably arranged on the meter frame shell; the meter frame shell is characterized in that a through hole is formed in the side wall of the meter frame shell, a lifting wire is connected to the through hole, and the lifting wire can be operated manually to stretch along the through hole; the digital display comparator further comprises:

the fixed grid assembly is fixed on the measuring rod;

the circuit board is arranged on the meter frame shell, is opposite to the fixed grid component, is provided with an induction fixed grid corresponding to the fixed grid component and is used for displaying the displacement of the measuring rod on a display screen;

the lifting assembly is movably arranged in the meter frame shell and positioned above the through hole, and can be abutted against the measuring rod under the extending action of the lifting wire to push the measuring rod to be lifted and return when the lifting wire retracts to release the pushing of the measuring rod so as to enable the measuring rod to descend and reset;

and one end of the return spring is fixed on the fixed grid assembly, the other end of the return spring is fixed on the inner wall of the meter frame shell, and the return spring applies elastic force for enabling the measuring rod to descend and reset.

Preferably, the fixed grid assembly comprises:

the fixing seat is suitable for being fixedly connected with the measuring rod through a fastening piece, and the end face of the fixing seat, which is back to the measuring rod, is implemented as a mounting face;

the fixed grid is suitable for being fixedly installed on the installation surface;

the fastening piece is inserted on the measuring rod along the axis direction perpendicular to the measuring rod, and one end of the fastening piece is connected with the fixed seat;

the lifting component is abutted against the other end of the fastener under the extending action of the lifting wire.

Preferably, the fastener is a straight screw.

Preferably, a limiting part for limiting the fixed seat is further arranged on the measuring rod above the fixed seat.

Preferably, the limiting member is a hoop.

Preferably, the digital display comparator further comprises a guide assembly, and the guide assembly comprises:

the guide piece is arranged on the fixed seat and extends along the direction vertical to the axis of the measuring rod;

the guide groove is arranged on the inner wall of the watch frame shell;

the guide piece is in sliding connection with the guide groove.

Preferably, a spherical portion is formed at one end of the guide member in sliding contact with the guide groove.

Preferably, the lifting assembly comprises:

the lifting piece comprises a body, one end of the body is implemented as a connecting end, the other end of the body is implemented as a lifting end, and the lifting end is suitable for being lifted to abut against the measuring rod under the action of pushing force generated when the lifting wire extends out;

the connecting piece is arranged on the inner wall of the meter frame shell and is rotationally connected with the connecting end;

and a biasing member provided on the connecting member and having one end abutting on an inner wall of the case band case and the other end abutting on the body, the biasing member applying a biasing force to the body to release the body from pushing the measuring stick.

Preferably, the sidewall of the body facing the through hole is further provided with an abutting piece which is suitable for abutting when the lifting wire extends out.

Preferably, the body is zigzag-shaped; and/or

The biasing member is a torsion spring.

Compared with the prior art, the utility model has the advantages that:

the utility model discloses a digital display comparator sets up the through-hole so that connect the lifting line on the table skeleton casing, through lifting line and lifting unit's cooperation, promotes the measuring stick, need not hand direct contact measuring stick and removes the measuring stick, has avoided the measuring error that the hand contact leads to. Meanwhile, due to the simple structural design, the problem that the existing lever lifting device occupies a large space is solved. Structural design is reasonable, can improve stability and reliability, and it is more convenient to measure.

Drawings

The invention will be further described with reference to the following drawings and examples:

fig. 1 is a schematic view of a forward three-dimensional structure of a fixed grid assembly of a digital display comparator (a circuit board and a display screen are omitted) according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a rear-facing three-dimensional structure of a fixed grid assembly (a circuit board and a display screen are omitted) of the digital display comparator according to the embodiment of the present invention;

fig. 3 is a schematic diagram of a longitudinal cutting structure of the digital display comparator according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a body of a lifting assembly of the digital display comparator according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a guide of the digital display comparator according to an embodiment of the present invention.

Wherein: 1. a watch case body; 11. a through hole; 2. a measuring rod; 3. a fixed grid assembly; 31. a fixed seat; 32. fixing a grid; 33. a fastener; 4. a return spring; 5. a lifting assembly; 51. a lifting member; 511. a body; 512. a connecting end; 513. a lifting end; 514. abutting the sheet; 52. a connecting member; 53. a biasing member; 6. a stopper; 7. a guide assembly; 71. a guide member; 72. a guide groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Referring to fig. 1 to 5, the digital display comparator according to the embodiment of the present invention includes a meter frame casing 1, a measuring rod 2, a fixed grid 32 assembly 3, a circuit board (not shown), a lifting assembly 5 and a return spring 4. The watch frame shell 1 is a ring with a hollow middle part. The measuring rod 2 is arranged on the watch frame shell 1 in a vertical direction as shown in fig. 1, namely, in a manner of moving up and down, and the bottom end of the measuring rod 2 is a measuring head. The fixed grid 32 assembly 3 is fixed on the measuring rod 2 and can move along with the up-and-down movement of the measuring rod 2. The circuit board is disposed on the front end surface of the meter support case 1 as shown in fig. 1, and is opposite to the fixed grid 32 assembly 3, and the circuit board is provided with an induction fixed grid 32 (not shown) opposite to the fixed grid 32 assembly 3, so as to convert the displacement of the measuring rod 2 into the phase variation of the electrical signal, and finally display the data on a display screen (not shown) disposed on the meter support case 1 and electrically connected to the circuit board through a series of operations. The specific principle is the same as that of the existing digital vernier caliper, and the description and the limitation are not specifically made, and the technical personnel in the field know and are easy to realize. The lifting component 5 is movably arranged in the meter frame shell 1 and is positioned above the through hole, and the lifting component 5 can be abutted against the measuring rod 2 under the extending action of a lifting line (not shown) to push the measuring rod 2 to be lifted and return when the lifting line retracts to release the pushing of the measuring rod 2, so that the measuring rod 2 is lowered and reset. One end of the return spring 4 is fixed on the fixed grid 32 component 3, the other end is fixed on the inner wall of the meter frame shell 1, and the return spring 4 applies elastic force for lowering and resetting the measuring rod 2. In order to realize the above lifting action, correspondingly, a through hole 11 penetrating through the side wall is formed on the side wall of the meter frame housing 1, specifically, the left lower side wall as shown in fig. 2, the through hole 11 is a tapered screw hole and can be in threaded connection with a tapered nut (not shown), the tapered nut is connected with a pipeline (not shown) with a hollow interior, a telescopic lifting wire (not shown) is arranged in the pipeline, one end of the lifting wire extends out of the other end of the pipeline to serve as an operating end (not shown), the other end of the lifting wire is arranged in one end of the pipeline connected with the through hole 11 by virtue of an elastic member to serve as a pushing end (not shown), and the pushing end of the lifting wire extends out of the through hole 11 and is abutted to the lifting assembly 5 upwards so as to enable the lifting assembly 5 to be jacked to abut to the measuring rod 2 by manually pressing the operating end, so as to push the measuring rod 2 to move upwards. The specific structure of the lifting line is not described or limited, and is the conventional structure. The embodiment of the utility model provides a through set up hoisting component 5 in table frame casing 1, set up the through-hole so that connect the lifting line on table frame casing 1, through lifting line and hoisting component 5's cooperation, promote measuring stick 2, need not 2 removal measuring sticks 2 of hand direct contact measuring stick, avoided the measuring error that the hand contact leads to. Meanwhile, due to the simple structural design, the problem that the existing lever lifting device occupies a large space is solved. Structural design is reasonable, can improve stability and reliability, and it is more convenient to measure.

According to some embodiments of the present invention, as shown in fig. 1 and 2, the fixed grid 32 assembly 3 includes a fixing base 31, a fixed grid 32 and a fastener 33. The fastening base 31 is adapted to be fixedly connected to the measuring rod 2 by means of a fastening element 33, and its end surface facing away from the measuring rod 2 is embodied as a mounting surface. The stator grid 32 is adapted to be fixedly mounted to a mounting surface. The fastening member 33 is horizontally inserted on the measuring stick 2 from front to back in a direction perpendicular to the axis of the measuring stick 2, i.e., as shown in fig. 2, and one end, i.e., the rear end as shown in fig. 2, is connected to the fixing base 31. The lifting member 5 is brought into abutment against the other end of the fastener 33, i.e. the front end as shown in figure 2, by the action of the extension of the lifting wire. Optionally, the fastener 33 is a straight screw. The straight screw is common, simple in structure and low in cost.

According to some embodiments of the present invention, as shown in fig. 1 to fig. 3, a limiting part 6 for limiting the fixing seat 31 is further disposed above the fixing seat 31 on the measuring rod 2. The fixing seat 31 is convenient to mount, it should be noted that the limiting member 6 limits the upper end of the fixing seat 31, and the limit at the lower end of the fixing seat 31 depends on the lower end of the inner wall of the meter stand casing 1. Preferably, the limiting part 6 is a semi-annular hoop, so that the structure is simple, the cost is low, and the installation is also convenient.

According to some preferred embodiments of the present invention, the digital display comparator further comprises a guide assembly 7. Specifically, as shown in fig. 1 to 3, the guide assembly 7 includes a guide 71 and a guide groove 72. The guide 71 is provided on the fixed base 31 and extends in a direction perpendicular to the axis of the measuring stick 2, i.e. horizontally to the left as viewed in fig. 1. The guide groove 72 is provided on the inner wall of the case 1 and is an arc groove matched with the inner wall of the case 1. The guide member 71 is slidably engaged in the guide groove 72. The arrangement of the lead assembly can prevent the fixed grid 32 assembly 3 from moving in the front-back direction as shown in fig. 1 or fig. 2, thereby improving the stability and reliability of measurement and ensuring the measurement accuracy.

According to some embodiments of the present invention, as shown in fig. 5, the end of the guide member 71 sliding in the guide groove 72 is formed with a ball portion. The ball part is arranged, so that the sliding is smoother.

According to some embodiments of the present invention, as shown in fig. 2 and 4, the lifting assembly 5 includes a lifting member 51, a connecting member 52, and a biasing member 53. The lift 51 includes a body 511, and as shown in fig. 4, the body 511 is zigzag-shaped. One end of the body 511, i.e. the left end as shown in fig. 4, is implemented as a connecting end 512, and the other end, i.e. the right end as shown in fig. 4, is implemented as a lifting end 513, the lifting end 513 being adapted to be lifted into abutment with the measuring stick 2, in particular the fastening member 33, when being subjected to an urging force when the lifting wire is extended. The link 52 is mounted on the inner wall of the case band case 1 and is rotatably connected to the connection end 512. The biasing member 53 is provided on the attachment member 52 and has one end abutting on the inner wall of the case band case 1 and the other end abutting on the body 511, and the biasing member 53 applies a biasing force to the body 511 that releases the body 511 from pushing the measuring stick 2. Optionally, the biasing member 53 is a torsion spring. The connector 52 is a straight screw.

According to some embodiments of the present invention, as shown in fig. 4, the sidewall of the body 511 facing the through hole 11, that is, the lower sidewall, is provided with an abutting sheet 514 adapted to abut against the abutting end when the lifting wire is extended. Preferably, the abutting piece 514 and the body 511 are an integral structure and are formed by stamping and bending the same sheet metal part.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A digital display comparator comprises a meter frame shell and a measuring rod movably arranged on the meter frame shell; the watch frame is characterized in that a through hole is formed in the ground side wall of the watch frame shell, a lifting wire is connected to the through hole, and the lifting wire can be manually operated to stretch and retract along the through hole; the digital display comparator further comprises:

the fixed grid assembly is fixed on the measuring rod;

the lifting component can be movably arranged in the meter frame shell and positioned above the through hole, and can be abutted against the measuring rod under the extending action of the lifting line to push the measuring rod to be lifted and return when the lifting line retracts to release the pushing of the measuring rod so as to enable the measuring rod to descend and reset;

2. The digital display comparator according to claim 1, wherein the stationary grid assembly comprises:

the fixing seat is suitable for being fixedly connected with the measuring rod through a fastening piece, and the end face of the fixing seat, which faces away from the measuring rod, is used as a mounting surface;

3. A digital display comparator as claimed in claim 2 wherein the fastener is a straight screw.

4. The digital display comparator according to claim 2, wherein a position-limiting member for limiting the fixing seat is further disposed on the measuring rod above the fixing seat.

5. A digital display comparator as claimed in claim 4, characterised in that the stop is a clip.

6. The digital display comparator according to claim 2, further comprising a guide assembly, the guide assembly comprising:

the guide groove is formed in the inner wall of the meter frame shell;

the guide piece is connected in a sliding manner in the guide groove.

7. The digital display comparator according to claim 6, wherein a spherical portion is formed at one end of the guide member in sliding contact with the guide groove.

8. The digital display comparator according to claim 1, wherein the lifting assembly comprises:

9. The digital display comparator according to claim 8, wherein the side wall of the body facing the through hole is further provided with an abutting piece which is suitable for abutting when the lifting wire extends out.

10. The digital display comparator according to claim 8, wherein the body is zigzag shaped; and/or

The biasing member is a torsion spring.