CN213337037U

CN213337037U - Sclerometer convenient to change measuring head

Info

Publication number: CN213337037U
Application number: CN202021712693.4U
Authority: CN
Inventors: 李晓宁
Original assignee: Hebei Zhongce Metrology Testing Co ltd
Current assignee: Hebei Zhongce Metrology Testing Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-06-01
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a sclerometer convenient to change measuring head, including sclerometer body, motor and measuring head body, the internally mounted of sclerometer body has the bearing platform, the both ends of lead screw and the inner wall surface interconnect of bearing platform, the internally mounted of movable block has first spring, the embedded inside at the stopper of installing of one end of clamp splice, the surface mounting of stopper has the gasbag, the top of sclerometer body is provided with the installation piece, the upper end of measuring head body is fixed with the lug, the embedded inside at telescopic inside of installing in upper end of measuring head body. This sclerometer convenient to change measuring head, the outside of measuring head body is provided with the sleeve, through carrying out the dismantlement between sleeve and the installation piece, can appear wearing and tearing when the measuring head body, dismantles the surface of installing the piece alone with the measuring head body and changes, and it is very simple and convenient to operate, is favorable to improving the maintenance efficiency of measuring head body.

Description

Sclerometer convenient to change measuring head

Technical Field

The utility model relates to a detect relevant technical field, specifically be a sclerometer convenient to change measuring head.

Background

The detection refers to detecting the technical performance index of a test object by using a specified method, a standard measuring tool and an instrument are required to be used in the detection process to measure and ensure the reliability of a measurement result obtained when the detected measuring tool and instrument are used for measurement, the hardness is the most common performance index in the mechanical properties of the metal material, the hardness detection is an important means for judging the quality of the metal material or a part, and in the hardness detection process, a hardness meter is usually adopted as a detection device, but the existing hardness meter has certain defects.

The sclerometer is through the measuring head to carrying out the pre-compaction by the surface of being detected the object under the circumstances of exerting certain load, the hardness number is calculated to the recess degree of depth that rethread material surface plastic deformation produced, along with the increase of live time, wearing and tearing can appear in the surface of measuring head, just need change the measuring head in order to guarantee the precision of detecting, but the connection structure between current sclerometer and the measuring head is very complicated, the inconvenience of measuring head change in-process has been caused, and current sclerometer lacks corresponding fixture, the stability of object detection time measuring is lower, certain potential safety hazard has.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sclerometer convenient to change measuring head to it is very complicated to propose the connection structure between current sclerometer and the measuring head in the solution above-mentioned background art, has caused the inconvenience of measuring head change in-process, lacks corresponding fixture, and object detection time measuring's stability is lower, has the problem of certain potential safety hazard.

In order to achieve the above object, the utility model provides a following technical scheme: a sclerometer convenient to change measuring head comprises a sclerometer body, a motor and a measuring head body, wherein a bearing platform is arranged inside the sclerometer body, a movable block is embedded above the bearing platform and penetrates through the lower end of the movable block, the two ends of the screw rod are mutually connected with the inner wall surface of the bearing platform, the motor is arranged on one side of the screw rod and is positioned outside the bearing platform, a first spring is arranged inside the movable block, one side of the first spring is connected with a clamping block, the clamping block is positioned on the front side and the rear side of the movable block, one end of the clamping block is embedded inside a limiting block, a second spring is arranged inside the limiting block and is mutually connected with the surface of the second spring and the surface of the clamping block, an air bag is arranged on the surface of the limiting block, and an installation block is arranged above the sclerometer body, and the lower part of the mounting block is connected with a measuring head body, a lug is fixed at the upper end of the measuring head body, the tail end of the lug is embedded in the mounting block, the upper end of the measuring head body is embedded in the sleeve, the sleeve is positioned outside the mounting block, and spiral grains are arranged on the surfaces of the mounting block and the sleeve.

Preferably, the movable blocks and the supporting platform form a sliding structure, and the number of the movable blocks is 2 symmetrically arranged about the central point of the supporting platform.

Preferably, the screw rod is rotatably connected with the bearing platform and is in threaded connection with the movable block.

Preferably, the clamping blocks are arranged to be L-shaped structures, 4 clamping blocks are symmetrically arranged around the central point of the bearing platform, and the clamping blocks respectively form a telescopic structure with the movable block and the limiting block through the first spring and the second spring.

Preferably, the mounting block and the measuring head body form a detachable mounting structure, the mounting block and the protruding block are connected in a clamping manner, and the protruding blocks are arranged on the surface of the measuring head body at equal angles.

Preferably, the sleeve and the mounting block form a dismounting and mounting structure in threaded connection, and the sleeve and the measuring head body are in clamping connection.

Compared with the prior art, the beneficial effects of the utility model are that: the hardness tester which is convenient for replacing the measuring head,

1. the sleeve is arranged on the outer side of the measuring head body, and the measuring head body can be detached from the surface of the mounting block and replaced independently when the measuring head body is worn by detaching the sleeve from the mounting block, so that the operation is very simple and convenient, and the maintenance efficiency of the measuring head body is improved;

2. the movable block, the clamping block and the limiting block are arranged on the surface of the supporting platform, so that an object to be measured can be effectively clamped, the stability of the object on the surface installation of the supporting platform is improved, the phenomenon that the object falls off in the measuring process is avoided, and the safety factor of the device in the using process is increased;

3. the surface mounting of stopper has the gasbag, can not be better laminate mutually with the object surface that awaits measuring, can also avoid causing the damage to the object surface that awaits measuring at the centre gripping in-process, has played better guard action, and the surface of measuring head body is waiting the angle and is provided with the lug, can increase the stability of measuring head body at installation piece surface mounting, avoids appearing the not hard up phenomenon of measuring head body in the use, has improved measuring result's accuracy.

Drawings

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

FIG. 2 is a schematic view of the top view structure of the movable block and the clamping block of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 4 is a schematic view of the front view structure of the movable block and the lead screw;

FIG. 5 is a schematic view of the three-dimensional structure of the sleeve and the spiral thread of the present invention;

fig. 6 is a schematic view of the measuring head body and the bump of the present invention.

In the figure: 1. a durometer body; 2. a support platform; 3. a movable block; 4. a screw rod; 5. a motor; 6. a first spring; 7. a clamping block; 8. a limiting block; 9. a second spring; 10. an air bag; 11. mounting blocks; 12. a measuring head body; 13. a bump; 14. a sleeve; 15. and (4) spiral threads.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a sclerometer convenient for replacing a measuring head comprises a sclerometer body 1, a bearing platform 2, a movable block 3, a screw rod 4, a motor 5, a first spring 6, a clamping block 7, a limiting block 8, a second spring 9, an air bag 10, an installation block 11, a measuring head body 12, a convex block 13, a sleeve 14 and spiral grains 15, wherein the bearing platform 2 is installed inside the sclerometer body 1, the movable block 3 is installed above the bearing platform 2 in an embedded mode, the lower end of the movable block 3 is penetrated through by the screw rod 4, two ends of the screw rod 4 are mutually connected with the inner wall surface of the bearing platform 2, the motor 5 is installed on one side of the screw rod 4, the motor 5 is located on the outer side of the bearing platform 2, the first spring 6 is installed inside the movable block 3, the clamping block 7 is connected to one side of the first spring 6, the clamping block 7 is located on the front side and the rear side of the movable block 3, one end of the clamping block 7 is installed inside, a second spring 9 is arranged inside the limiting block 8, the surface of the second spring 9 is connected with the surface of the clamping block 7, an air bag 10 is arranged on the surface of the limiting block 8, an installation block 11 is arranged above the durometer body 1, a measuring head body 12 is connected below the installation block 11, a lug 13 is fixed at the upper end of the measuring head body 12, the tail end of the lug 13 is embedded inside the installation block 11, the upper end of the measuring head body 12 is embedded inside a sleeve 14, the sleeve 14 is positioned outside the installation block 11, and spiral grains 15 are arranged on the surfaces of the installation block 11 and the sleeve 14;

the movable blocks 3 and the bearing platform 2 form a sliding structure, 2 movable blocks 3 are symmetrically arranged about the central point of the bearing platform 2, the movable blocks 3 drive the clamping blocks 7 to slide on the surface of the bearing platform 2, the spacing distance between the movable blocks 3 can be adjusted, objects to be detected with different sizes can be clamped conveniently, and the application range of the device is enlarged;

the screw rod 4 is rotatably connected with the supporting platform 2, the screw rod 4 is in threaded connection with the movable block 3, the relative position of the movable block 3 can be adjusted by rotating the screw rod 4 by utilizing the threaded connection between the screw rod 4 and the movable block 3, and the mode that the motor 5 drives the screw rod 4 is adopted, so that the convenience in the clamping operation process is improved;

the clamping blocks 7 are arranged to be L-shaped structures, 4 clamping blocks 7 are symmetrically arranged about the central point of the bearing platform 2, the clamping blocks 7 respectively form a telescopic structure with the movable block 3 and the limiting block 8 through the first spring 6 and the second spring 9, different edges of an object can be effectively limited through the arrangement mode of the L-shaped structures, the transverse distance and the longitudinal distance between the 4 clamping blocks 7 can be adjusted through the common stretching action of the first spring 6 and the second spring 9, and the use flexibility is improved;

the mounting block 11 and the measuring head body 12 form a dismounting mounting structure, the mounting block 11 and the projection 13 are in clamping connection, the projection 13 is arranged on the surface of the measuring head body 12 at equal angles, and the projection 13 arranged at equal angles is clamped into a corresponding groove in the mounting block 11, so that the stability of the surface mounting of the measuring head body 12 on the mounting block 11 can be improved, and the phenomenon that the measuring head body 12 is loosened in the using process is avoided;

the sleeve 14 and the mounting block 11 form a dismounting and mounting structure in threaded connection, the sleeve 14 and the measuring head body 12 are in clamping connection, and the sleeve 14 is mounted on the surface of the mounting block 11, so that a good reinforcing effect can be achieved on the mounting of the measuring head body 12 on the surface of the mounting block 11, and meanwhile, the clamping tightness of the convex block 13 in the mounting block 11 can be improved;

the working principle is as follows: when the hardness timer convenient for replacing the measuring head is used, as shown in figures 1-6, firstly, a motor 5 is started, a screw rod 4 is driven to rotate by the motor 5, as the screw rod 4 is in threaded connection with a movable block 3, when the screw rod 4 rotates, the movable block 3 can be pushed to move oppositely or back and forth on the surface of the screw rod 4 by utilizing the opposite thread directions of the surface of the screw rod 4, at the moment, a second spring 9 in a limiting block 8 is stretched, after the distance between 2 groups of clamping blocks 7 in the left and right directions is adjusted according to the size of an object to be measured, the object to be measured is placed above a bearing platform 2, then the limiting block 8 is respectively pulled to the front and back directions, so that a first spring 6 in the movable block 3 is stretched, the limiting block 8 is loosened, and an airbag 10 on the surface of the limiting block 8 is driven to be attached to the surface of the object to be, the arranged air bag 10 can be tightly attached to the surface of an object to be detected, so that the stability of the object in the surface installation of the bearing platform 2 is improved, and the phenomenon that the object falls off in the detection process is avoided;

after the object is placed, the cylinder in the hardness tester body 1 is used for driving the measuring head body 12 to move towards the direction of the object to be measured, the measuring head body 12 is pre-pressed on the surface of the object to be measured after a certain load is applied, the hardness value is calculated through the depth of a groove generated by the plastic deformation of the surface of the material, when the measuring head body 12 needs to be replaced, the sleeve 14 is firstly rotated, the spiral thread 15 on the surface of the sleeve 14 is screwed out of the spiral thread 15 on the surface of the mounting block 11, then the sleeve 14 is pulled downwards, the measuring head body 12 is pulled downwards, the lug 13 is disengaged from the inside of the mounting block 11, the measuring head body 12 can be detached, the replaced measuring head body 12 is inserted from the mounting block 11, the lug 13 is engaged in the corresponding groove, and then the sleeve 14 is inserted upwards from the lower part of the measuring head body 12, and the measuring head body 12 can be replaced by screwing the spiral threads 15, the operation is very simple and convenient, and the overall practicability is increased.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sclerometer convenient to change measuring head, includes sclerometer body (1), motor (5) and measuring head body (12), its characterized in that: the inside mounting of sclerometer body (1) has bearing platform (2), and the embedded movable block (3) that installs in the top of bearing platform (2), and the lower extreme of movable block (3) is inside to be run through by lead screw (4), the both ends of lead screw (4) and the inner wall surface interconnect of bearing platform (2), and motor (5) are installed to one side of lead screw (4), and motor (5) are located the outside of bearing platform (2), the internally mounted of movable block (3) has first spring (6), and one side of first spring (6) is connected with clamp splice (7), and clamp splice (7) are located the front and back both sides of movable block (3), the embedded inside at stopper (8) of installing of one end of clamp splice (7), and the internally mounted of stopper (8) has second spring (9), and the surface interconnect of second spring (9) and clamp splice (7), the utility model discloses a measuring device, including stopper (8), the surface mounting of stopper (8) has gasbag (10), the top of sclerometer body (1) is provided with installation piece (11), and the below of installation piece (11) is connected with measuring head body (12), the upper end of measuring head body (12) is fixed with lug (13), and the terminal embedded inside of installing piece (11) of lug (13), the embedded inside of installing at sleeve (14) of installing of upper end of measuring head body (12), and sleeve (14) are located the outside of installation piece (11) to the surface of installation piece (11) and sleeve (14) all is provided with spiral line (15).

2. A durometer facilitating replacement of a measuring head as claimed in claim 1, wherein: the movable block (3) and the bearing platform (2) form a sliding structure, and 2 movable blocks (3) are symmetrically arranged around the central point of the bearing platform (2).

3. A durometer facilitating replacement of a measuring head as claimed in claim 1, wherein: the screw rod (4) is rotatably connected with the bearing platform (2), and the screw rod (4) is in threaded connection with the movable block (3).

4. A durometer facilitating replacement of a measuring head as claimed in claim 1, wherein: the clamping blocks (7) are arranged to be L-shaped structures, 4 clamping blocks (7) are symmetrically arranged relative to the central point of the bearing platform (2), and the clamping blocks (7) respectively form a telescopic structure with the movable block (3) and the limiting block (8) through the first spring (6) and the second spring (9).

5. A durometer facilitating replacement of a measuring head as claimed in claim 1, wherein: the mounting block (11) and the measuring head body (12) form a dismounting and mounting structure, the mounting block (11) and the lug (13) are connected in a clamping manner, and the lug (13) is arranged on the surface of the measuring head body (12) at equal angles.

6. A durometer facilitating replacement of a measuring head as claimed in claim 1, wherein: the sleeve (14) and the mounting block (11) form a dismounting and mounting structure in threaded connection, and the sleeve (14) is connected with the measuring head body (12) in a clamping manner.