CN214584634U

CN214584634U - Full Rockwell digital display hardness tester without knife edge design

Info

Publication number: CN214584634U
Application number: CN202120893343.0U
Authority: CN
Inventors: 王相国
Original assignee: Shanghai Hadenis Precision Instrument Co ltd
Current assignee: Shanghai Hadenis Precision Instrument Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-11-02
Anticipated expiration: 2031-04-27

Abstract

The utility model discloses a full rockwell digital display sclerometer of no edge of a knife design relates to sclerometer technical field, be in including frame and setting the pressure head of frame upper end to and the drive assembly that the drive pressure head pushed down, drive assembly is including the slip main shaft, the lower extreme of slip main shaft and the upper end of pressure head are connected, and the junction of slip main shaft and pressure head is equipped with pressure sensor. The utility model discloses cancel the part of traditional sclerometer edge of a knife, a lot of parts have been lacked, the price/performance ratio improves, it is still less than traditional digital display rockwell sclerometer cost, drive lever motion through motor drive, utilize the bearing of exerting pressure of lever lower extreme to the upper end of sliding main shaft, and the periphery of sliding main shaft is connected through two linear bearing and frames, make the frictional force at the in-process lever of exerting pressure and sliding main shaft upper end reduce, the motion of sliding main shaft is smooth and easy, thereby improve the loaded precision of power and the stability of power value, and then improve the degree of accuracy of hardness value.

Description

Full Rockwell digital display hardness tester without knife edge design

Technical Field

The utility model relates to a sclerometer technical field especially relates to a full Rockwell digital display sclerometer of no edge of a knife design.

Background

The digital display Rockwell hardness tester commonly used in the market at present basically adopts two structures: 1. a French code loading structure + a knife edge; 2. the motor loading + knife edge cannot be coded.

However, no matter which digital display rockwell hardness tester is used, the friction force of the knife edge can affect the precision of force value loading and the stability of the force value, and further affect the accuracy of the hardness value, so that a full rockwell digital display hardness tester without a knife edge design is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a no edge of a knife design's full rockwell digital display sclerometer has solved the not high technical problem of rockwell digital display sclerometer hardness number degree of preparation.

In order to solve the technical problem, the utility model provides a full Rockwell digital display sclerometer of no edge of a knife design, including the frame and setting up the pressure head in the frame upper end, and the drive assembly that the drive pressure head pushed down, the drive assembly includes the slip main shaft, the lower extreme of slip main shaft and the upper end of pressure head are connected, and the junction of slip main shaft and pressure head is equipped with pressure sensor, the outside cover of slip main shaft is equipped with two linear bearing, two linear bearing sets up in the linear bearing installation section of thick bamboo, the linear bearing installation section of thick bamboo is supported on the bearing and is installed on the frame through the bearing under bracing, the slip main shaft is located the upper end outside cover that the bearing supported and is equipped with the spring, the upper end of slip main shaft is equipped with the support plate, the upper end of support plate is equipped with the lever, the one end of lever rotates through the support bearing and connects in the support plate, the other end of the lever is connected with a motor drive, the motor drive is fixedly installed on the inner wall of the rack, and a pressing bearing is arranged on the lower end face of the lever close to the end of the supporting bearing.

Preferably, the lower end surface of the lever is provided with a pressing bearing installation groove, the pressing bearing is connected to two side walls of the installation groove through a rotating shaft, and the lower end surface of the pressing bearing is in rolling contact with the upper end of the upper support of the spring.

Preferably, gaskets are arranged between the two linear bearings and between the linear bearings and the bearing lower support.

Preferably, the spring upper support is in a circular plate shape, and the diameter of the spring upper support is larger than that of the spring, so that the spring can drive the sliding main shaft to reset.

Preferably, the bearing upper support and the bearing lower support are fixed on the frame through fixing bolts, and through holes for the sliding main shaft to pass through are formed in the middles of the bearing upper support and the bearing lower support.

Preferably, the edges and corners of the lower end surface of the rack are provided with the pillars.

Compared with the prior art, the utility model provides a pair of no edge of a knife design's full Rockwell digital display sclerometer has following beneficial effect:

the utility model discloses cancel the part of traditional sclerometer edge of a knife, a lot of parts have been lacked, the price/performance ratio improves, it is still less than traditional digital display rockwell sclerometer cost, drive lever motion through motor drive, utilize the bearing of exerting pressure of lever lower extreme to the upper end of sliding main shaft, and the periphery of sliding main shaft is connected through two linear bearing and frames, make the frictional force at the in-process lever of exerting pressure and sliding main shaft upper end reduce, the motion of sliding main shaft is smooth and easy, thereby improve the loaded precision of power and the stability of power value, and then improve the degree of accuracy of hardness value.

Drawings

FIG. 1 is a schematic view of a full Rockwell digital display hardness tester without a knife edge design;

fig. 2 is an enlarged schematic view of a in fig. 1.

Reference numbers in the figures: 1. the device comprises a rack, 2, a motor drive, 3, a pressure head, 4, a linear bearing, 5, a lever, 6, a support bearing, 7, a pressure bearing, 8, a sliding main shaft, 9, a bearing upper support, 10, a bearing lower support, 11, a spring upper support, 12, a linear bearing installation cylinder, 13, a pressure sensor, 14, a support plate, 15 and a support spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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.

Example (b):

the utility model provides a no knife edge design's full Rockwell digital display sclerometer by figure 1 and 2, the utility model provides a no knife edge design's full Rockwell digital display sclerometer, including frame 1 and the pressure head 3 of setting in frame 1 upper end, and the drive assembly that the drive pressure head 3 pushed down, drive assembly includes slip main shaft 8, the lower extreme of slip main shaft 8 and the upper end of pressure head 3 are connected, and the junction of slip main shaft 8 and pressure head 3 is equipped with pressure sensor 13, pressure sensor 13 and the display screen (not shown in the figure) of frame 1 front end are connected, and show the pressure value that detects on the screen; the outer side cover of slip main shaft 8 is equipped with two linear bearing 4, two linear bearing 4 set up in linear bearing installation section of thick bamboo 12, linear bearing installation section of thick bamboo 12 is installed on frame 1 through bearing upper support 9 and bearing lower support 10, the slip main shaft 8 is located the upper end outside cover of bearing upper support 9 and is equipped with supporting spring 15, the upper end of slip main shaft 8 is equipped with spring upper support 11, the inside of frame 1 is equipped with backup pad 14, the upper end of backup pad 14 is equipped with lever 5, the one end of lever 5 rotates through supporting bearing 6 and connects in backup pad 14, motor drive 2 is connected to the other end of lever 5, motor drive 2 fixed mounting is on frame 1 inner wall, the lower terminal surface of lever 5 is close to supporting bearing 6 end and is equipped with bearing 7 of exerting pressure, the lower extreme that frame 1 is located pressure head 3 is equipped with the plane operation platform (not shown in the figure), the lower extreme of plane operation platform is provided with the motor post.

The lower end surface of the lever 5 is provided with a pressing bearing 7 mounting groove, the pressing bearing 7 is connected to two side walls of the mounting groove through a rotating shaft, and the lower end surface of the pressing bearing 7 is in rolling contact with the upper end of the spring upper support 11.

Gaskets are arranged between the two linear bearings 4 and between the linear bearing 4 and the bearing lower support 10.

The spring upper support 11 is in a circular plate shape, and the diameter of the spring upper support 11 is larger than that of the support spring 15, so that the support spring 15 drives the sliding main shaft 8 to perform the reset action.

The upper bearing support 9 and the lower bearing support 10 are fixed on the frame 1 through fixing bolts, and through holes for the sliding main shaft 8 to pass through are formed in the middles of the upper bearing support 9 and the lower bearing support 10.

The edges and corners of the lower end face of the rack 1 are provided with the socle, so that the effect of stably supporting the hardness tester is achieved.

The working principle is as follows:

the utility model provides a full rockwell digital display sclerometer of no edge of a knife design, cancel the part of traditional sclerometer edge of a knife, a lot of parts have been lacked, the price/performance ratio improves, the cost is still less than traditional digital display rockwell sclerometer, in operation, place the piece that awaits measuring on the plane operation panel, rise to suitable height with the plane operation panel through the lead screw, drive lever 5 through motor drive 2 and move, utilize bearing 7 of exerting pressure of lever 5 lower extreme to support 11 on the spring of the upper end of sliding spindle 8 and exert pressure, at this moment, support spring 15 compresses, sliding spindle 8 moves down, adopt to roll and exert pressure through bearing 7 and make the frictional force that supports 11 reduce on the spring of lever 5 and sliding spindle 8 upper end in the process of exerting pressure; the main shaft 8 that slides moves down under the effect of pressure drives the pressure head 3 and carries out the hardness test downwards, is transmitted pressure numerical value to mainboard CPU and carries out closed loop control to pressure by pressure sensor 13, because the periphery of main shaft 8 that slides is connected with frame 1 through two linear bearing 4, the motion of main shaft 8 that slides is smooth and easy to improve the loaded precision of power value and the stability of power value, and then the degree of accuracy of improvement hardness value.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 no knife edge design's full Rockwell digital display sclerometer, includes frame (1) and sets up pressure head (3) of frame (1) upper end to and drive assembly that drive pressure head (3) pushed down, its characterized in that: the drive assembly comprises a sliding main shaft (8), the lower end of the sliding main shaft (8) is connected with the upper end of a pressure head (3), a pressure sensor (13) is arranged at the joint of the sliding main shaft (8) and the pressure head (3), two linear bearings (4) are sleeved on the outer side of the sliding main shaft (8), the two linear bearings (4) are arranged in a linear bearing installation cylinder (12), the linear bearing installation cylinder (12) is installed on a rack (1) through a bearing upper support (9) and a bearing lower support (10), a support spring (15) is sleeved on the outer side of the upper end of the sliding main shaft (8) which is positioned on the bearing support (9), an upper spring support (11) is arranged at the upper end of the sliding main shaft (8), a support plate (14) is arranged in the rack (1), and a lever (5) is arranged at the upper end of the support plate (14), one end of the lever (5) is rotatably connected to the supporting plate (14) through the supporting bearing (6), the other end of the lever (5) is connected with the motor drive (2), the motor drive (2) is fixedly installed on the inner wall of the rack (1), and the lower end face of the lever (5) is provided with a pressure bearing (7) close to the supporting bearing (6).

2. The full Rockwell digital display hardness tester without the knife edge design according to claim 1, wherein the lower end surface of the lever (5) is provided with a mounting groove of a pressing bearing (7), the pressing bearing (7) is connected to two side walls of the mounting groove through a rotating shaft, and the lower end surface of the pressing bearing (7) is in rolling contact with the upper end of the upper spring support (11).

3. The full Rockwell digital display hardness tester without the knife edge design according to claim 1, wherein a gasket is arranged between the two linear bearings (4) and between the linear bearing (4) and the lower bearing support (10).

4. The full Rockwell digital Durometer without knife edge design according to claim 1, wherein the spring upper support (11) is a circular plate shape, and the diameter of the spring upper support (11) is larger than the diameter of the support spring (15).

5. The full Rockwell digital display hardness tester without the knife edge design according to claim 1, wherein the bearing upper support (9) and the bearing lower support (10) are both fixed on the frame (1) through fixing bolts, and through holes for the sliding main shaft (8) to pass through are arranged in the middles of the bearing upper support (9) and the bearing lower support (10).

6. The full Rockwell digital display hardness tester without the knife edge design of claim 1, wherein the corner of the lower end face of the frame (1) is provided with a foot post.