CN114777620A

CN114777620A - Special depth measuring instrument

Info

Publication number: CN114777620A
Application number: CN202210349623.4A
Authority: CN
Inventors: 陈锡龙; 陈素龙; 孙东升
Original assignee: Shandong Haoda Auto Parts Co ltd
Current assignee: Shandong Haoda Auto Parts Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-07-22

Abstract

The invention discloses a special depth measuring instrument belonging to the field of hole depth measurement, which comprises a U-shaped seat, a dial level gauge body, a stud, a cylinder and a threaded ring, wherein a connecting block is embedded and installed on the other side of the lower surface of the dial level gauge body, a connecting column is fixed at the bottom end of the connecting block, the bottom end of the connecting column is fixed on the upper surface of the threaded ring, the stud penetrates through the middle of the threaded ring, a chuck is fixed at the bottom end of the stud, the top end of the cylinder extends into the chuck for fixation, a second bevel gear is sleeved above the cylinder, the second bevel gear is in meshing connection with a first bevel gear, a cross rod is fixed at one end of the first bevel gear, a fixing plate is fixed at the middle of the other side of the bottom end inside the U-shaped seat, the cross rod penetrates through the fixing plate, and a third bevel gear is sleeved at the bottom end of the cylinder. The dial indicator has the advantages that the dial indicator body moves upwards or downwards to adjust the height; the second bevel gear and the third bevel gear are matched for use, and the service life of the equipment is prolonged.

Description

Special depth measuring instrument

Technical Field

The invention relates to the field of hole depth measurement, in particular to a special depth measuring instrument.

Background

The depth of the hollow hole, which is also the actual hole forming depth, is the difference from the hole opening elevation to the hole top elevation. The measurement of the depth of the hole is a common practice with a dial gauge.

A micrometer lever meter, also called lever meter or backing meter, is a measuring instrument which utilizes a lever-gear transmission mechanism or a lever-screw transmission mechanism to change the size into the angular displacement of a pointer and indicate the length size value, is used for measuring the geometric errors and the mutual position correctness of workpieces, and can measure the length by a comparison method. The dial lever meter can be used for measuring form and position errors, measuring actual sizes by a comparative measurement method, and measuring small holes, grooves, hole distances, coordinate sizes and the like.

When general amesdial was carrying out the hole degree of depth and is measuring, the amesdial was fixed on corresponding fixing base, and based on actual site survey environment, the adjustment that can not carry out height according to the needs measuring hole position after the amesdial is fixed influences actual use.

In view of this, we propose a dedicated depth gauge.

Disclosure of Invention

1. Technical problem to be solved

The present invention is directed to a special depth measuring instrument to solve the above problems in the background art.

2. Technical scheme

The special depth measuring instrument comprises a U-shaped seat, a dial indicator body, a stud, a cylinder and a threaded ring, wherein the U-shaped seat and the dial indicator body form the depth measuring instrument;

a telescopic rod is fixed in the middle of one side of the bottom end inside the U-shaped seat, the top end of the telescopic rod is fixedly connected with one side of the lower surface of the dial lever gauge body, a connecting block is embedded in the other side of the lower surface of the dial lever gauge body, four connecting columns are fixed on the outer side of the bottom end of the connecting block in an annular array mode, the bottom ends of the four connecting columns are fixed on the upper surface of a threaded ring in an annular array mode, a stud penetrates through the middle of the threaded ring, a chuck is fixed at the bottom end of the stud, the top end of a cylinder extends into the chuck to be fixed, a second bevel gear is sleeved above the cylinder and is in meshed connection with a first bevel gear, a cross rod is fixed at one end of the first bevel gear, a fixing plate is fixed in the middle of the other side of the bottom end inside the U-shaped seat, and the cross rod penetrates through the fixing plate;

and a third bevel gear is sleeved at the bottom end of the cylinder.

Preferably, one end of the dial indicator body is rotatably provided with the probe, the top end of the dial indicator body is fixedly provided with the dial, and the probe, the dial indicator body and the dial form the dial indicator.

Preferably, the pipe thread on the outer surface of the stud is in threaded connection with the thread groove on the inner side of the thread ring, and the stud rotates relative to the thread ring to drive the thread ring to move up and down.

Preferably, the third bevel gear is opposite to the tooth opening of the second bevel gear, and the third bevel gear is matched with the first bevel gear.

Preferably, the fixing plate is provided with a through hole matched with the cross rod, and the cross rod penetrates through the through hole.

Preferably, a round handle is fixed to one end, away from the first bevel gear, of the cross rod.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

1. the height position of the dial lever meter body is adjusted according to actual use conditions, the round handle is rotated, the round handle drives the first bevel gear to rotate through the cross rod, the first bevel gear drives the second bevel gear to rotate, the cylinder rotates together with the stud, the threaded ring rotates relative to the stud, and then the height of the threaded ring changes. When the round handle is rotated along the pointer, the threaded ring moves upwards relative to the stud, and when the round handle is rotated anticlockwise, the threaded ring moves downwards relative to the stud; the threaded ring and the connecting column drive the dial indicator body to move up or down to adjust the height.

2. When the second bevel gear is worn, the chuck is unscrewed, the cylinder moves upwards, the second bevel gear and the third bevel gear move upwards together, the second bevel gear is separated from the first bevel gear, the third bevel gear is in meshed connection with the first bevel gear, and the third bevel gear is driven to rotate by the first bevel gear to complete the process of adjusting the height of the dial lever meter body. The second bevel gear and the third bevel gear are arranged to be matched for use, and the service life of the equipment is prolonged.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the connection structure of the dial gauge body according to the present invention;

FIG. 3 is an enlarged schematic view of the chuck attachment structure of FIG. 2 in accordance with the present invention;

FIG. 4 is an enlarged schematic view of the connection block coupling structure of FIG. 2 according to the present invention;

fig. 5 is a rear view structural diagram of the present invention.

The reference numbers in the figures illustrate: 1. a U-shaped seat; 2. lifting and shrinking the rod; 3. a probe; 4. a dial lever gauge body; 5. a dial plate; 6. a stud; 7. connecting columns; 8. a round handle; 9. a cross bar; 10. a first bevel gear; 11. a third bevel gear; 12. a cylinder; 13. a second bevel gear; 14. a threaded ring; 15. a chuck; 16. connecting blocks; 17. and (5) fixing the plate.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-5, the present invention provides a technical solution:

the special depth measuring instrument comprises a U-shaped seat 1, a dial indicator body 4, a stud 6, a cylinder 12 and a threaded ring 14, wherein the U-shaped seat 1 and the dial indicator body 4 form the depth measuring instrument.

Specifically, a telescopic rod 2 is fixed in the middle of one side of the bottom end inside the U-shaped seat 1, the top end of the telescopic rod 2 is fixedly connected with one side of the lower surface of a dial indicator body 4, a connecting block 16 is embedded and installed on the other side of the lower surface of the dial indicator body 4, four connecting columns 7 are fixed on the outer side of the bottom end of the connecting block 16 in an annular array mode, the bottom ends of the four connecting columns 7 are fixed on the upper surface of a threaded ring 14 in an annular array mode, a stud 6 penetrates through the middle of the threaded ring 14, a chuck 15 is fixed at the bottom end of the stud 6, the top end of a cylinder 12 extends into the chuck 15 to be fixed, a second bevel gear 13 is sleeved on the upper portion of the cylinder 12, the second bevel gear 13 is in meshing connection with a first bevel gear 10, a cross rod 9 is fixed at one end of the first bevel gear 10, a fixing plate 17 is fixed in the middle of the other side of the bottom end inside the U-shaped seat 1, and the cross rod 9 penetrates through the fixing plate 17; the bottom end of the cylinder 12 is sleeved with a third bevel gear 11.

Furthermore, one end of a dial indicator body 4 is rotatably provided with a probe 3, the top end of the dial indicator body 4 is fixedly provided with a dial 5, and the probe 3, the dial indicator body 4 and the dial 5 form the dial indicator. A measuring instrument for measuring the geometric errors and mutual position correctness of workpieces features that a lever-gear drive or a lever-screw drive is used to change the size to angular displacement of pointer and indicate the length size.

Further, the pipe thread on the outer surface of the stud 6 is in threaded connection with the thread groove on the inner side of the threaded ring 14, and the stud 6 rotates relative to the threaded ring 14 to drive the threaded ring 14 to move up and down. The threaded ring 14 moves up and down relative to the stud 6 and simultaneously drives the dial indicator body 4 to move up and down to adjust the height.

Furthermore, the third bevel gear 11 is opposite to the tooth mouth of the second bevel gear 13, and the third bevel gear 11 is matched with the first bevel gear 10. The meshing of the third bevel gear 11 and the first bevel gear 10 and the meshing of the second bevel gear 13 and the first bevel gear 10 can be switched.

It should be noted that the fixing plate 17 is provided with a through hole matching with the cross bar 9, and the cross bar 9 passes through the through hole. The fixed plate 17 supports the cross bar 9, and the cross bar 9 is rotatable with respect to the fixed plate 17.

It is noted that the end of the cross bar 9 facing away from the first bevel gear 10 is fixed with a round shank 8. The round handle 8 is more convenient to hold and rotate.

In addition, the height position of the dial lever body 4 is adjusted according to the actual use condition, the round handle 8 is rotated, the round handle 8 drives the first bevel gear 10 to rotate through the cross rod 9, the first bevel gear 10 drives the second bevel gear 13 to rotate, the cylinder 12 rotates together with the stud 6, the threaded ring 14 rotates relative to the stud 6, and then the height of the threaded ring 14 changes. When the round handle 8 is rotated along the pointer, the threaded ring 14 moves upwards relative to the stud 6, and when the round handle 8 is rotated anticlockwise, the threaded ring 14 moves downwards relative to the stud 6; the threaded ring 14 and the connecting column 7 drive the dial indicator body 4 to move up or down to adjust the height.

In addition, when the second bevel gear 13 is worn, the chuck 15 is unscrewed, the cylinder 12 is moved upwards, the second bevel gear 13 and the third bevel gear 11 move upwards together, the second bevel gear 13 is separated from the first bevel gear 10, the third bevel gear 11 is in meshed connection with the first bevel gear 10, and the third bevel gear 11 is driven to rotate through the first bevel gear 10 to complete the process of adjusting the height of the dial indicator body 4. The second bevel gear 13 and the third bevel gear 11 are arranged to be matched for use, and the service life of the equipment is prolonged.

Besides, the circuits, electronic components and modules involved in the invention are all the prior art, and can be fully realized by those skilled in the art, needless to say, the protection content of the invention also does not involve the improvement of the internal structure and method.

The foregoing shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Special depth measuring apparatu, its characterized in that: the depth measuring instrument comprises a U-shaped seat (1), a dial indicator body (4), a stud (6), a cylinder (12) and a threaded ring (14), wherein the U-shaped seat (1) and the dial indicator body (4) form the depth measuring instrument;

the middle of one side of the bottom end inside the U-shaped seat (1) is fixedly provided with a lifting and shrinking rod (2), the top end of the lifting and shrinking rod (2) is fixedly connected with one side of the lower surface of a dial lever gauge body (4), a connecting block (16) is embedded into the other side of the lower surface of the dial lever gauge body (4), the outer side of the bottom end of the connecting block (16) is fixedly provided with four connecting columns (7) in an annular array mode, the bottom ends of the four connecting columns (7) are fixedly arranged on the upper surface of a threaded ring (14) in an annular array mode, a stud (6) penetrates through the middle of the threaded ring (14), the bottom end of the stud (6) is fixedly provided with a chuck (15), the top end of a cylinder (12) extends into the chuck (15) to be fixed, a second bevel gear (13) is sleeved above the cylinder (12), the second bevel gear (13) is in meshing connection with a first bevel gear (10), and one end of the first bevel gear (10) is fixedly provided with a cross rod (9), a fixing plate (17) is fixed in the middle of the other side of the bottom end in the U-shaped seat (1), and the cross rod (9) penetrates through the fixing plate (17);

the bottom end of the cylinder (12) is sleeved with a third bevel gear (11).

2. The specialized depth measuring instrument according to claim 1, wherein: one end of the dial indicator body (4) is rotatably provided with the probe (3), the top end of the dial indicator body (4) is fixed with the dial plate (5), and the probe (3), the dial indicator body (4) and the dial plate (5) form the dial indicator.

3. The specialized depth measuring instrument according to claim 1, wherein: the pipe thread on the outer surface of the stud (6) is in threaded connection with the thread groove on the inner side of the thread ring (14), and the stud (6) rotates relative to the thread ring (14) to drive the thread ring (14) to move up and down.

4. The special depth measuring instrument according to claim 1, wherein: the third bevel gear (11) is opposite to the tooth mouth of the second bevel gear (13), and the third bevel gear (11) is matched with the first bevel gear (10).

5. The specialized depth measuring instrument according to claim 1, wherein: the fixing plate (17) is provided with a through hole matched with the cross rod (9), and the cross rod (9) penetrates through the through hole.

6. The specialized depth measuring instrument according to claim 1, wherein: and a round handle (8) is fixed at one end of the cross rod (9) departing from the first bevel gear (10).