CN109084660B

CN109084660B - Measurement tool

Info

Publication number: CN109084660B
Application number: CN201811124989.1A
Authority: CN
Inventors: 刘金华; 高云; 章庆
Original assignee: Shanghai Jingzhi Industry Co ltd
Current assignee: Shanghai Jingzhi Industry Co ltd
Priority date: 2018-09-26
Filing date: 2018-09-26
Publication date: 2024-06-18
Anticipated expiration: 2038-09-26
Also published as: CN109084660A

Abstract

The invention relates to the technical field of mechanical measurement, and particularly discloses a measurement tool which comprises a base, a supporting block, a bracket, a positioning rod and a measurement mechanism; the support block is arranged on the base, and a workpiece to be measured is arranged on the support block; the bracket comprises a supporting part and a connecting part which are connected with each other, the connecting part is fixed on the base, and the supporting part is provided with a guide sleeve; the positioning rod is arranged in the guide sleeve in a sliding way, and one end of the positioning rod is abutted against a drilling hole on the workpiece; the measuring mechanism is arranged on the base and can measure the distance to the end face of the workpiece. Knowing that the distance from the center of the drilling hole of the standard component to the end face is L1, putting the standard component on the measuring tool, measuring the numerical value measured by the measuring mechanism, and setting the numerical value measured when the workpiece to be measured is placed on the measuring tool as X, wherein the distance L=L1+X-X1 from the center of the drilling hole of the workpiece to the end face; l can be measured by one-time reading of the measuring tool, and two-time measurement is not needed; the measuring speed is improved, and the intensity of measuring work is reduced.

Description

Measurement tool

Technical Field

The invention relates to the technical field of mechanical measurement, in particular to a measurement tool.

Background

With the development of mass part production in the mechanical field, the uniformity of the sizes of single parts is more and more important, so that the standards for the precision of the parts are more and more strict, and the requirements for mechanical measurement technology are also improved.

Many parts on the machine have holes drilled on the cylindrical surface, and the distance from the center of the holes to an end surface is also very demanding.

The distance from the round hole of the cylindrical part to one end face is measured by adopting an indirect distance measuring method, a vernier caliper is used as a measuring tool, the measuring tool is clamped at the distance L1 from one side of a drilled hole of the part to be measured to the end face, then the aperture D is measured, and the distance L=L1+D/2.

Therefore, a measurement tool is needed to solve the above technical problems.

Disclosure of Invention

The invention aims to provide a measuring tool which can rapidly measure the distance between the center of a drilling hole and the end face.

To achieve the purpose, the invention adopts the following technical scheme:

A measurement tool, comprising:

the device comprises a base and a supporting block, wherein the supporting block is arranged on the base, and a workpiece to be measured is arranged on the supporting block;

The bracket is arranged on the base, and the guide sleeve is arranged on the bracket;

The positioning rod is arranged in the guide sleeve in a sliding penetrating mode, and one end of the positioning rod is abutted against a drilling hole on the workpiece;

and the measuring mechanism is arranged on the base and can measure the distance to the end face of the workpiece.

Preferably, the guide sleeve is provided with a first bushing, the positioning rod is provided with a stop piece in a surrounding mode, the positioning rod is provided with an elastic piece in a sleeved mode, and the elastic piece is located between the first bushing and the stop piece.

Preferably, a second bushing is arranged in the guide sleeve and is spaced from the first bushing, and the second bushing is positioned on one side of the first bushing, which is close to the supporting block.

Preferably, the support block is provided with a V-shaped groove, and the workpiece is placed in the V-shaped groove.

Preferably, the measuring tool further comprises a meter frame arranged on the base, and the measuring mechanism is arranged on the meter frame.

Preferably, the bracket comprises a connecting part and a supporting part which are connected with each other, the connecting part is fixed on the base, and the guide sleeve is arranged on the supporting part; the connecting part is positioned between the supporting block and the meter frame, and a through hole for a measuring head of the measuring mechanism to pass through is formed in the connecting part.

Preferably, a lifting handle is arranged at one end of the positioning rod, which is not abutted with the drilling hole.

Preferably, the measuring mechanism is a dial indicator or a dial indicator.

Preferably, the measuring mechanism is a screw micrometer head.

Preferably, a plurality of feet are arranged on the bottom surface of the base.

The invention has the beneficial effects that: knowing that the distance from the center of the drilling hole of the standard component to the end face is L1, putting the standard component on the measuring tool, measuring the numerical value measured by the measuring mechanism, and setting the numerical value measured when the workpiece to be measured is placed on the measuring tool as X, wherein the distance L=L1+X-X1 from the center of the drilling hole of the workpiece to the end face; the L can be measured by reading the L measuring tool once, two times of measurement are not needed, the measuring speed is improved, and meanwhile, the intensity of measuring work is reduced.

Drawings

FIG. 1 is a schematic structural view of a measuring tool provided by the invention;

FIG. 2 is a schematic structural diagram of the measuring tool (excluding the workpiece) provided by the invention;

FIG. 3 is a front view of the measuring tool provided by the invention;

FIG. 4 is a side view of the measurement tool provided by the present invention;

fig. 5 is a cross-sectional view taken along A-A of fig. 4.

In the figure: 10. a workpiece; 11. a base; 12. a support block; 121. a V-shaped groove;

13. a bracket; 131. a connection part; 1311. a through hole; 132. a support part;

14. Guide sleeve; 15. a positioning rod; 151. a stop piece; 16. a measuring mechanism; 17. a first bushing; 18. an elastic member; 19. a second bushing; 20. a watch stand; 21. a lifting handle; 22. and (5) footing.

Detailed Description

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 5, the present embodiment discloses a measuring tool, which includes a base 11, a supporting block 12, a bracket 13, a positioning rod 15, a measuring mechanism 16, and a gauge stand 20.

A plurality of feet 22 are provided on the bottom surface of the base 11. The supporting block 12 is provided on the base 11, and a V-shaped groove 121 is provided at an upper portion of the supporting block 12, and the workpiece 10 to be measured is placed in the V-shaped groove 121. The bracket 13 includes a supporting portion 132 and a connecting portion 131 connected to each other, the connecting portion 131 is fixed to the base 11, and the supporting portion 132 is provided with the guide sleeve 14.

The positioning rod 15 is slidably disposed in the guide sleeve 14, one end of the positioning rod 15 abuts against a drilled hole in the workpiece 10, the end of the positioning rod 15 is provided with a tip end for facilitating abutting against the drilled hole, and the other end of the positioning rod 15 is provided with a lifting handle 21. The gauge stand 20 is provided on the base 11, the measuring mechanism 16 is provided on the gauge stand 20, and the measuring mechanism 16 can measure the distance to the end face of the workpiece 10.

Knowing that the distance from the center of the drilling hole of the standard part to the end face is L1, placing the standard part on the measuring tool, and placing the positioning rod 15 against the drilling hole of the standard part, wherein the measured value of the measuring mechanism 16 is X1, and the measured value of the workpiece 10 to be measured when the workpiece 10 to be measured is placed on the measuring tool is X, the distance from the center of the drilling hole of the workpiece 10 to the end face is L=L1+X-X1; l can be measured by one-time reading of the measuring tool, and two-time measurement is not needed; the measuring speed is improved, and the intensity of measuring work is reduced.

Specifically, the connection portion 131 is disposed perpendicular to the support portion 132, the support portion 132 is located above the support block 12, the connection portion 131 may be located on any side of the support block 12, in this embodiment, preferably, the connection portion 131 is located between the support block 12 and the bezel 20, and a through hole 1311 through which the probe of the measurement mechanism 16 passes is provided in the connection portion 131.

A first bushing 17 and a second bushing 19 are arranged in the guide sleeve 14 at intervals, and the second bushing 19 is positioned on one side close to the supporting block 12. The locating rod 15 is provided with a stop piece 151 in a ring, the locating rod 1 slides 5 to penetrate through the first bushing 17 and the second bushing 19, and the stop piece 151 is positioned between the first bushing 17 and the second bushing 19. The positioning rod 15 is sleeved with an elastic piece 18, and the elastic piece 18 is positioned between the first bushing 17 and the stop piece 151. In this embodiment, the elastic member 18 is preferably a spring, and one end of the elastic member 18 abuts against one side of the first bushing 17 near the second bushing 19, and the other end abuts against the stop piece 151. The other side of the stop piece 151 can be abutted against one side of the second bushing 19, which is close to the first bushing 17, so that the positioning rod 15 can be prevented from falling off from the guide sleeve 14 under the action of the elastic piece 18.

Preferably, the measuring mechanism 16 in this embodiment is a dial indicator, and in other embodiments may be a dial indicator or a screw micrometer according to the measurement accuracy requirement.

In other embodiments, the measurement mechanism 16 includes a displacement sensor mounted to the bezel 20, a controller, and a display, both of which are electrically connected to the controller. The displacement sensor measures the distance from the end face of the workpiece 10 and feeds back to the controller, the controller calculates and displays the measured value on a display, and the display displays the distance from the end face of the workpiece 10 to the center of the drilling.

The process of measuring the workpiece 10 by the measuring tool is as follows:

1. Lifting the lifting handle 21, lifting the positioning rod 15 upwards to provide a placing space for placing the workpiece 10 to be measured, placing the workpiece 10 to be measured on the V-shaped groove 121 of the supporting block 12, aligning the drilling hole of the workpiece 10 with the positioning rod 15, loosening the lifting handle 21, and abutting the positioning rod 15 on the drilling hole under the action of the elastic piece 18;

2. the dial gauge reads the measurement vertical X and calculates the distance l=l1+x-X1 from the center of the borehole to the end face of the workpiece 10.

It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims

1. A measurement tooling, comprising:

The device comprises a base (11) and a supporting block (12), wherein the supporting block (12) is arranged on the base (11), and a workpiece (10) to be measured is arranged on the supporting block (12);

A bracket (13) arranged on the base (11), wherein a guide sleeve (14) is arranged on the bracket (13);

the positioning rod (15) is arranged in the guide sleeve (14) in a sliding way, and one end of the positioning rod (15) is abutted against a drilling hole on the workpiece (10);

A measuring mechanism (16) which is provided on the base (11) and is capable of measuring a distance to an end surface of the workpiece (10);

One end of the positioning rod (15) which is not in butt joint with the drilling hole is provided with a lifting handle (21);

The measuring tool further comprises a meter frame (20) arranged on the base (11), and the measuring mechanism (16) is arranged on the meter frame (20);

the bracket (13) comprises a connecting part (131) and a supporting part (132) which are connected with each other, the connecting part (131) is fixed on the base (11), and the guide sleeve (14) is arranged on the supporting part (132);

The connecting part (131) is positioned between the supporting block (12) and the meter frame (20), a through hole (1311) for a measuring head of the measuring mechanism (16) to pass through is formed in the connecting part (131), and the measuring head is abutted with the end face of the workpiece (10) after passing through the through hole (1311);

Knowing that the distance between the drilling center of the standard part and the end face is L1, putting the standard part into the drilling hole of the standard part, which is propped against by the positioning rod (15) on the measuring tool, wherein the measured value of the measuring mechanism (16) is X1, and the measured value of the workpiece (10) to be measured when the workpiece (10) is placed on the measuring tool is X, and then the distance L=L1+X-X1 between the drilling center of the workpiece (10) and the end face is obtained.

2. The measuring tool according to claim 1, wherein the guide sleeve (14) is provided with a first bushing (17), the positioning rod (15) is provided with a stop piece (151) in a ring, the positioning rod (15) is provided with an elastic piece (18) in a sleeved mode, and the elastic piece (18) is located between the first bushing (17) and the stop piece (151).

3. The measuring tool according to claim 2, wherein a second bushing (19) is arranged in the guide sleeve (14), the second bushing (19) is arranged at intervals with the first bushing (17), and the second bushing (19) is positioned on one side of the first bushing (17) close to the supporting block (12).

4. The measuring tool according to claim 1, wherein the support block (12) is provided with a V-shaped groove (121), and the workpiece (10) is placed in the V-shaped groove (121).

5. The measurement tool according to claim 1, wherein the measurement mechanism (16) is a dial indicator or a dial indicator.

6. The measurement tool according to claim 1, wherein the measurement mechanism (16) is a screw micrometer head.

7. A measuring tool according to claim 1, characterized in that the base (11) is provided with a plurality of feet (22) on its bottom surface.