CN218380798U

CN218380798U - Aperture measuring mechanism

Info

Publication number: CN218380798U
Application number: CN202221865598.7U
Authority: CN
Inventors: 朱志军; 朱翰钦
Original assignee: Huangshan Minglun Precision Hardware Co ltd
Current assignee: Huangshan Minglun Precision Hardware Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2023-01-24
Anticipated expiration: 2032-07-19

Abstract

The utility model discloses an aperture measurement mechanism, include box body, first hole supporting component, first measuring component and install the pore wall slider at the loop bar other end. The box body is internally provided with a cavity. The first bore support assembly includes a hollow cylinder and two rods. Two loop bars are respectively slidably arranged at two ends of the hollow cylinder in a penetrating way, and are respectively provided with a reset spring between the two sides of the fixed block. The first measurement assembly includes a fixed plate. The fixed plate is installed on the box body lateral wall, and installs first extensible member and second extensible member on the fixed plate is close to the side of loop bar. The telescopic ends of the first telescopic piece and the second telescopic piece are respectively provided with a marking pen and a marking pen. When the aperture measuring mechanism is used, the loop bars on two sides are compressed into the box body at first, then the mechanism is integrally plugged into an inner hole of a piece to be measured, under the action of the reset spring and the hole wall sliding piece, the box body and the loop bars are automatically adjusted in the hole, the aperture of the inner hole can be measured after the mechanism is stabilized, and the operation is convenient and fast.

Description

Aperture measuring mechanism

Technical Field

The utility model relates to a measuring equipment technical field, concretely relates to aperture measurement mechanism.

Background

For the measurement of the diameter of the hole, there are measurement methods such as direct measurement, indirect measurement, and comprehensive measurement. Aperture measurement is one of the main contents of the length metering technique. At present, a plurality of precision parts need to be subjected to aperture measurement before leaving factory after production and before being used, an inner diameter dial indicator or an inner diameter micrometer is generally used for measuring the inner diameter of the aperture, a measurer needs to put the inner diameter micrometer into an inner hole of a workpiece for measurement, the inner diameter measuring instrument adopts mechanical transmission, diameter alignment is realized by adjusting the position of the measuring instrument, the measuring precision is low, and the measuring speed is slow; in addition, the measuring instrument only measures the inner diameter of one detection position, and obtains diameter data of the position, so that the detection of the aperture errors of a plurality of detection positions in the hole is inconvenient, the roundness of the inner hole cannot be detected, and the use function is limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an aperture measuring mechanism.

The utility model solves the technical problems that: the existing inner diameter measuring instrument adopts mechanical transmission, diameter alignment is realized by adjusting the position of the measuring instrument, the measuring precision is not high, and the measuring speed is slow; and the detection of the aperture error of a plurality of detection positions in the hole is inconvenient, the roundness of the inner hole cannot be detected, and the use function is limited.

The purpose of the utility model can be realized by the following technical proposal:

an aperture measuring mechanism comprises a box body, a first inner hole supporting assembly, a first measuring assembly and an aperture sliding piece arranged at the other end of a loop bar.

The box body is internally provided with a cavity.

The first bore support assembly includes a hollow cylinder and two rods. Hollow section of thick bamboo is installed between two parties in the cavity, and the mid-mounting of hollow section of thick bamboo has the fixed block. Two loop bars are respectively arranged at two ends of the hollow cylinder in a sliding way, and are respectively provided with a return spring between the two loop bars and two sides of the fixed block. The outer wall of the loop bar is provided with scale marks.

The first measurement assembly includes a fixed plate. The fixed plate is installed on the box body lateral wall, and installs first extensible member and second extensible member on the fixed plate is close to the side of loop bar. The telescopic ends of the first telescopic piece and the second telescopic piece are respectively provided with a marking pen and a marking pen.

The hole wall sliding piece is installed at one end, far away from the fixed block, of the loop bar and is used for being in sliding contact with the hole wall.

When the two sets of hole wall sliding pieces are in contact with the hole wall, the marking pen marks the marks on the loop bar. When the box body is rotated in the hole, the marking pen is in contact with the sleeve rod, and the marking pen is not in contact with the sleeve rod.

As a further aspect of the present invention: the bore wall slide comprises a catch plate. The catch plate includes a vertical portion and a horizontal portion. The vertical part is fixedly connected with the loop bar, and the horizontal part is arranged on one side of the vertical part far away from the loop bar. The vertical part and the horizontal part are both rotatably provided with balls.

As a further aspect of the present invention: the box body is externally provided with a handle used for rotating the box body.

As a further aspect of the present invention: the first extensible member is a lifting cylinder.

As a further aspect of the present invention: the second extensible member is an electric push rod.

As a further aspect of the present invention: an adjusting groove is arranged in the box body. An electric telescopic rod is arranged in the adjusting groove. The moving direction of the electric telescopic rod is consistent with the extending direction of the adjusting groove, and the lifting plate is installed at the telescopic end of the electric telescopic rod. A second inner hole supporting assembly is installed at the bottom of the lifting plate, and second measuring assemblies are installed on two sides of the lifting plate. The second measuring component has the same structure as the first measuring component. The second inner hole supporting component has the same structure as the first inner hole supporting component. Wherein, the one end of box body is kept away from to the loop bar in the second hole supporting component rotates and is provided with the ball.

The utility model has the advantages that:

when the aperture measuring mechanism is used, the loop bars on two sides are compressed into the box body, then the mechanism is integrally plugged into an inner hole of a piece to be measured, the box body and the loop bars are automatically adjusted in the hole under the action of the return spring and the hole wall sliding piece, and the aperture of the inner hole can be measured conveniently and quickly after the aperture measuring mechanism is stabilized; meanwhile, in the rotating measurement process, the marking pen is always in contact with the surface of the sleeve rod, when any position stops, the aperture of the measurement position can be calculated according to the real-time position of the marking pen, and the aperture of each position can be conveniently measured; and the length of the line left on the surface of the loop bar by the marking pen can reflect the error fluctuation of the aperture at different positions, detect the roundness of the inner hole and further reflect the quality of the piece to be detected.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of the aperture measuring mechanism of the present invention;

FIG. 2 is a front view of the aperture measuring mechanism of the present invention;

FIG. 3 is a schematic view of the connection between the hollow cylinder and the sleeve of the present invention;

fig. 4 is a schematic structural diagram of the measuring assembly of the present invention.

In the figure: 1. a box body; 101. a cavity; 102. an adjustment groove; 2. a handle; 3. a loop bar; 4. a fixing plate; 5. a first measurement assembly; 501. a lifting cylinder; 502. a marking pen; 503. an electric push rod; 504. a marking pen; 6. clamping a plate; 7. a ball bearing; 8. a lifting plate; 9. an electric telescopic rod; 11. scale marks; 12. a hollow cylinder; 13. a return spring; 14. and (5) fixing blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-2, the present embodiment is an aperture measuring mechanism, which includes a box 1, a first inner hole supporting assembly, a first measuring assembly 5, and a hole wall sliding member installed at an end of the loop bar 3 away from the fixing block 14.

As shown in fig. 1, the case 1 in this embodiment has a rectangular parallelepiped shape, and has a cavity 101 formed therein. Specifically, the cavity 101 is in a strip shape, as shown in fig. 2, the cavity 101 is horizontally arranged in the box body 1.

As shown in fig. 3, the first female support assembly includes a hollow barrel 12 and two rods 3. The hollow cylinder 12 is centrally installed in the cavity 101, and a fixing block 14 is installed in the middle of the hollow cylinder. The two loop bars 3 are respectively arranged at two ends of the hollow cylinder 12 in a sliding way, and a return spring 13 is respectively arranged between the two loop bars and two sides of the fixed block 14. The outer wall of the loop bar 3 is provided with scale marks 11.

As shown in fig. 4, the first measuring unit 5 includes a fixing plate 4. The fixed plate 4 is installed on the lateral wall of the box body 1, and a first telescopic piece and a second telescopic piece are installed on the side face, close to the loop bar 3, of the fixed plate 4. The telescoping ends of the first and second telescoping members are fitted with a marker pen 502 and a scribe pen 504, respectively. The specific types of the first telescopic member and the second telescopic member are not limited, and the marking pen 502 and the scribing pen 504 can be driven to be stretched, and in this embodiment, the first telescopic member is the lifting cylinder 501. The second telescopic member is an electric push rod 503.

The bore wall slide is adapted to make sliding contact with the bore wall.

Note that the marker pen 502 marks a mark on the stem 3 when both sets of hole wall sliders are in contact with the hole wall. When the cartridge 1 is rotated in the hole, the marker pen 504 is in contact with the stem 3, and the marker pen 502 is not in contact with the stem 3. That is to say, the aperture measurement mechanism of this embodiment is when using, at first compresses both sides loop bar 3 to box body 1 in, then with the whole hole of inserting into the piece that awaits measuring of mechanism, release loop bar 3 makes the pore wall slider and the pore wall contact at loop bar 3 both ends, because pore wall slider and pore wall sliding contact, consequently can take box body 1 and loop bar 3 at downthehole automatically regulated, can measure the aperture of hole after the stability. During measurement, the lifting cylinder 501 and the electric push rod 503 are started by hands to drive the marking pen 502 and the marking pen 504 to descend, wherein the lifting cylinder 501 contracts immediately after being ejected, marks are left on the loop bar 3 by the marking pen 502, data are determined according to the scale marks 11 by the marks left on the loop bar 3 by the two marking pens 502, and then the size of the aperture can be calculated by combining fixed sizes of components such as the hole wall sliding piece, the hollow cylinder 12 and the like. The electric push rod 503 keeps the extension state, rotates the box body 1 again, utilizes the pore wall slider to rotate along the pore wall, and in the rotation process, the marking pen 504 always contacts with the surface of the loop bar 3, and the line length left on the surface of the loop bar 3 by the marking pen 504 can reflect the error floating of the pore diameter at different positions, detects the roundness of the inner hole, and when any position stops in the rotation process, the pore diameter of the measuring position can be calculated according to the real-time position of the marking pen 504. After the measurement is completed, the electric push rod 503 is reset.

It is emphasized that the present mechanism is only applicable to inner bores having a smaller distance between two bore wall slides than in the natural state.

In this embodiment the bore wall slide comprises a catch plate 6. The catch plate 6 includes a vertical portion and a horizontal portion. The vertical part is fixedly connected with the loop bar 3, and the horizontal part is arranged on one side of the vertical part far away from the loop bar 3. The vertical part and the horizontal part are both provided with balls 7 in a rotating way. Specifically, the clamping plate 6 can be an integrally formed part or an assembly part. As shown in fig. 2, when the pallet 6 is an integrally formed part, the pallet 6 is r-shaped, the left side of the vertical part is connected with the loop bar 3, the right side is provided with the balls 7, the lower side of the horizontal part is provided with the balls 7, when the measuring device is used, the balls 7 of the vertical part are in contact with the inner wall of the inner hole, and the balls 7 of the horizontal part are in contact with the upper end face of the measuring part, so that the measuring mechanism can be supported.

In view of the convenience of the measuring mechanism, in this embodiment, the top of the case 1 is provided with a handle 2 for rotating the case 1.

When the aperture measuring mechanism is used, the loop bars 3 at two sides are compressed into the box body 1, then the mechanism is integrally plugged into an inner hole of a piece to be measured, the box body 1 and the loop bars 3 are automatically adjusted in the hole under the action of the return spring 13 and the hole wall sliding piece, and the aperture of the inner hole can be measured conveniently and quickly after the aperture measuring mechanism is stabilized; meanwhile, in the rotating measurement process, the marking pen 504 is always in contact with the surface of the sleeve rod 3, when any position stops, the aperture of the measurement position can be calculated according to the real-time position of the marking pen 504, and the aperture of each position can be conveniently measured; and the length of the line left on the surface of the loop bar 3 by the marking pen 504 can reflect the error floating of the aperture at different positions, detect the roundness of the inner hole and further reflect the quality of the piece to be detected.

Example 2

Consider that the aperture measuring mechanism of embodiment 1 can only measure the aperture of fixed degree of depth, if the aperture of the piece that awaits measuring is different in size when the different degree of depth, then can not accurately measure the aperture of the different degree of depth position, consequently, in this embodiment, seted up adjustment tank 102 in box body 1. The electric telescopic rod 9 is arranged in the adjusting groove 102. The moving direction of the electric telescopic rod 9 is consistent with the extending direction of the adjusting groove 102, and the lifting plate 8 is installed at the telescopic end of the electric telescopic rod 9. A second inner hole supporting component is installed at the bottom of the lifting plate 8, and second measuring components are installed on two sides of the lifting plate. The second measuring unit is identical in construction to the first measuring unit 5. The second inner hole supporting component has the same structure as the first inner hole supporting component. Wherein, the one end of loop bar 3 keeping away from box body 1 in the second hole supporting component rotates and is provided with ball 7.

The principle of aperture measurement in this embodiment is the same as that in embodiment 1, and is not described herein again. It should be noted that, when the aperture measuring mechanism of this embodiment is used, the length of the rear electric telescopic rod 9 can be designed in advance according to the measurement requirement, and then the measuring mechanism is put into the hole of the to-be-measured member for use.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. An aperture measuring mechanism, characterized by, still include:

the box body (1) is internally provided with a cavity (101);

a first bore support assembly comprising a hollow cylinder (12) and two rods (3); the hollow cylinder (12) is arranged in the cavity (101) in the middle, and the middle of the hollow cylinder (12) is provided with a fixed block (14); the two loop bars (3) are respectively arranged at two ends of the hollow cylinder (12) in a sliding way, and a return spring (13) is respectively arranged between the two loop bars and two sides of the fixed block (14); the outer wall of the loop bar (3) is provided with scale marks (11);

a first measuring assembly (5) comprising a fixed plate (4); the fixed plate (4) is arranged on the side wall of the box body (1), and a first telescopic piece and a second telescopic piece are arranged on the side surface, close to the loop bar (3), of the fixed plate (4); the telescopic ends of the first telescopic piece and the second telescopic piece are respectively provided with a marking pen (502) and a marking pen (504); and

the hole wall sliding piece is arranged at one end, far away from the fixed block (14), of the loop bar (3) and is used for being in sliding contact with the hole wall;

when the two sets of hole wall sliding pieces are in contact with the hole wall, the marking pen (502) marks on the loop bar (3); when the box body (1) is rotated in the hole, the marking pen (504) is contacted with the sleeve rod (3), and the marking pen (502) is not contacted with the sleeve rod (3).

2. An aperture measuring mechanism as claimed in claim 1, characterised in that the aperture wall slide comprises a catch plate (6); the clamping plate (6) comprises a vertical part and a horizontal part; the vertical part is fixedly connected with the loop bar (3), and the horizontal part is arranged on one side of the vertical part, which is far away from the loop bar (3); and balls (7) are rotatably arranged in the vertical part and the horizontal part.

3. An aperture measuring mechanism according to claim 1, characterized in that a handle (2) for rotating the case (1) is arranged outside the case (1).

4. An aperture measuring mechanism according to claim 1, characterised in that the first telescopic member is a lifting cylinder (501).

5. An aperture measuring mechanism according to claim 1, characterised in that the second telescopic member is an electric push rod (503).

6. An aperture measuring mechanism according to claim 1, characterized in that the box body (1) is provided with an adjusting groove (102); an electric telescopic rod (9) is arranged in the adjusting groove (102); the moving direction of the electric telescopic rod (9) is consistent with the extending direction of the adjusting groove (102), and the telescopic end of the electric telescopic rod (9) is provided with a lifting plate (8); a second inner hole supporting assembly is installed at the bottom of the lifting plate (8), and second measuring assemblies are installed on two sides of the lifting plate; the second measuring component has the same structure as the first measuring component (5); the second inner hole supporting component has the same structure as the first inner hole supporting component; one end, far away from the box body (1), of the loop bar (3) in the second inner hole supporting component is rotatably provided with a ball (7).