CN211179269U - A Rockwell Hardness Tester with Adjustable Angle - Google Patents

Abstract

The utility model relates to the technical field of Rockwell hardness testers, and discloses a Rockwell hardness tester with an angle adjustment function, comprising a transverse arm, a body and a base, the upper end of the body is fixedly connected with a transverse arm, There is an indicator, the lower surface of the transverse arm is provided with an indenter, the body is provided with a leveling device for detecting the level of the measured surface of the block to be tested, the lower end of the body is fixedly connected with a base, and the upper surface of the base is provided with a horizontal device. There is a hand wheel, the hand wheel is movably connected with a lead screw, the upper end of the lead screw is provided with a workbench, an adjusting device for adjusting the angle of the workbench is provided between the lead screw and the workbench, and the side of the base is provided with The loading handle and the unloading handle can adjust the angle of the table through the adjustment device, so that the measured surface of the block to be tested is vertical to the axis of the indenter, which greatly improves the measurement accuracy. practicality.

Description

A Rockwell Hardness Tester with Adjustable Angle

technical field

The utility model relates to the technical field of Rockwell hardness testers, in particular to a Rockwell hardness tester with an angle adjustment function.

Background technique

The Rockwell hardness tester is the first Rockwell hardness tester in the world designed according to the principle of Rockwell hardness test. It can test the hardness of metal only by touching the sample on one side. , does not need to support the sample, the test accuracy conforms to the standard GB/T230, ISO6508, the Rockwell hardness testing method is characterized by simple operation, rapid measurement, and can be directly read from the dial indicator or optical projection screen or display screen, Along with Brinell and Vickers hardness testing methods, it has become one of the three most commonly used hardness testing methods.

At present, the existing Rockwell hardness tester includes a base, a body and a transverse arm which are arranged in sequence from bottom to top. The three are integrally connected and in a C shape. The lower surface of the transverse arm is provided with an indenter, and the upper surface of the base is installed with a Lifting device, the lifting device includes the worktable located directly under the indenter, and the handwheel and the lead screw that drive the worktable to go up and down. When measuring, the block to be tested is placed on the worktable, and then the block to be tested is raised to the top by the lifting device. Measure below the indenter. However, the above-mentioned prior art has the following disadvantages: it is only applicable to the block to be tested whose surface to be tested is perpendicular to the axis of the indenter. There is a certain angle between the measured surface and the indenter. At this time, if an external force is applied for measurement, the hardness measurement data will be distorted, and the indenter may be damaged or ruptured, and even the lever mechanism inside the device will be bent and deformed.

In view of the above problems, a Rockwell hardness tester with an angle adjustment function is now provided.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a Rockwell hardness tester with the function of adjusting the angle, so as to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: a Rockwell hardness tester with an angle adjustment function, comprising a transverse arm, a body and a base, the upper end of the body is fixedly connected with a transverse arm, and the transverse arm is provided with a transverse arm. Indicator, the lower surface of the transverse arm is provided with an indenter, the body is provided with a leveling device for detecting the level of the measured surface of the block to be tested, the lower end of the body is fixedly connected with a base, and the upper surface of the base is provided with The handwheel is movably connected with a lead screw, the upper end of the lead screw is provided with a workbench, an adjusting device for adjusting the angle of the workbench is provided between the lead screw and the workbench, and the side of the base is provided with a Loading handle and unloading handle.

Preferably, the leveling device includes a hinge, a mounting plate and a level, the body is movably connected with a hinge, the hinge is movably connected with a mounting plate, and the mounting plate is fixedly connected with a level.

Preferably, the adjusting device includes a fixing rod, a universal ball head, a connector, a telescopic rod and a fixing bolt, the upper end of the lead screw is fixedly connected with a fixing rod, and the upper end of the fixing rod is fixedly connected with a universal ball head , the universal ball head is movably connected with a connector, the connector is fixedly connected with a workbench, the bottom of the workbench is fixedly connected with a telescopic rod, the telescopic rod is fixedly connected with a fixed rod, and the telescopic rod is provided with There are fixing bolts.

Preferably, the surface of the worktable is covered with a rubber material for slip resistance, and a magnet is provided inside.

Preferably, the protective cover of the indicator is a convex lens.

Preferably, the number of the telescopic rods is not less than three, and the circle center of the worktable is taken as the center point, and the annular array is at the bottom of the worktable.

Compared with the prior art, the beneficial effects of the present utility model are:

1. Using a universal ball head, a telescopic rod and a fixing bolt, the angle of the table is adjusted through the universal ball head, so that the measured surface of the block to be tested is vertical to the axis of the indenter, and then the expansion and contraction are fixed by tightening the fixing bolts. rod to fix the table, which effectively solves the problem of measuring when there is a certain angle between the measured surface of the block to be tested and the indenter, resulting in inaccurate hardness measurement data, and may also lead to damage or rupture of the indenter. Even the bending deformation of the lever mechanism inside the device greatly improves the measurement accuracy, and the structure design is compact and reasonable, and has strong practicability.

2. Use a level and a hinge. When the angle of the worktable is adjusted, open the level through the hinge and adjust the height of the worktable so that the measured surface of the block to be tested is close to the level. Observe the bubble position of the level. If the bubbles are not centered, adjust the angle of the worktable until the bubbles of the spirit level are centered before measuring. When not in use, fold the spirit level through the hinge, which greatly reduces the measurement error and makes the measurement data more accurate.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

Fig. 2 is the structural side sectional view of the present utility model;

Fig. 3 is the structural schematic diagram of the adjusting device of the present invention;

4 is a schematic structural diagram of the horizontal device of the present invention.

Among them, 1--cross arm, 2--body, 3--base, 4--indicator, 5--indenter, 6--table, 7--screw, 8--handwheel, 9- -Loading handle, 10--Unloading handle, 11--Telescopic rod, 12--Universal ball head, 13--Level ruler, 14--Connector, 15--Fixing rod, 16--Fixing bolt, 17--hinge, 18--installation plate.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1-4. In the embodiment of the present invention, a Rockwell hardness tester with an angle adjustment function includes a transverse arm 1, a body 2 and a base 3. The upper end of the body 2 is fixedly connected with the transverse arm 1, so The cross arm 1 is provided with an indicator 4, preferably, the protective cover of the indicator is a convex lens, the lower surface of the cross arm 1 is provided with an indenter 5, and the body 2 is provided with an indenter 5 for detecting the to-be-tested A leveling device for the level of the measured surface of the block, the leveling device includes a hinge 17, a mounting plate 18 and a level 13, the body 2 is movably connected with a hinge 17, and the hinge 17 is movably connected with a mounting plate 18, The mounting plate 18 is fixedly connected with a level 13, and a level 13 and a hinge 17 are used. When the angle of the workbench 6 is adjusted, the level 13 is opened through the hinge 17, and the height of the workbench 6 is adjusted to make the block to be tested. The surface to be measured is close to the level 13, observe the bubble position of the level 13, if the bubble is not centered, adjust the angle of the worktable 6 until the level 13 bubble is centered and then measure, and then pass the hinge 17 to the level 13 when not in use. Put away, greatly reducing the measurement error and making the measurement data more accurate;

The lower end of the body 2 is fixedly connected with the base 3, the upper surface of the base 3 is provided with a hand wheel 8, the hand wheel 8 is movably connected with a lead screw 7, and the upper end of the lead screw 7 is provided with a workbench 6, and the screw An adjusting device for adjusting the angle of the work table 6 is provided between the bar 7 and the worktable 6. The adjusting device includes a fixing rod 15, a universal ball head 12, a connector 14, a telescopic rod 11 and a fixing bolt 16. The upper end of the lever 7 is fixedly connected with a fixed rod 15, the upper end of the fixed rod 15 is fixedly connected with a universal ball head 12, the universal ball head 12 is movably connected with a connector 14, and the connector 14 is fixedly connected with the workbench 6 , a telescopic rod 11 is fixedly connected to the bottom of the worktable 6, a fixed rod 15 is fixedly connected to the telescopic rod 11, and a fixing bolt 16 is provided on the telescopic rod 11. Preferably, the number of the telescopic rods 11 is quite large. For three, and with the center of the table 6 as the center point, the annular array is at the bottom of the table 6, preferably, the surface of the table 6 is covered with a rubber material for anti-skid, and there is a magnet inside, which is effective. The block to be tested is fixed so that the indenter 5 can be accurately pressed into the surface to be tested. The side of the base 3 is provided with a loading handle 9 and an unloading handle 10, and a universal ball head 12, a telescopic rod 11 and a fixing bolt 16 are used. , adjust the angle of the table 6 through the universal ball head 12, so that the measured surface of the block to be tested is perpendicular to the axis of the indenter 5, and then fix the telescopic rod 11 by tightening the fixing bolts 16, thereby fixing the table 6, It effectively solves the problem that when there is a certain angle between the measured surface of the block to be tested and the indenter 5, the hardness measurement data is inaccurate, and the indenter 5 may be damaged or cracked, and even lead to internal damage of the device. The bending deformation of the lever mechanism greatly improves the measurement accuracy, and the structural design is compact and reasonable, and has strong practicability.

The working principle of the utility model is as follows: first, wipe clean the upper and lower end surfaces of the worktable 6 and the tested surface of the block to be tested, place the block to be tested on the worktable 6, and adjust the angle of the worktable 6 through the universal ball head 12, so that the The measured surface of the block to be tested is perpendicular to the axis of the indenter 5, and then the fixing bolts 16 are slightly tightened to fix the telescopic rod 11 so that the table 6 is fixed. After the angle of the table 6 is adjusted, the hinge 17 Open the level 13, turn the handwheel 8, and slowly raise the table 6 until the measured surface of the block to be tested is close to the level 13, observe the bubble position of the level 13, if the bubble is not in the center, adjust the angle of the table 6 to The air bubble of the level 13 is centered. After the level is determined, tighten the fixing bolts 16 to fix the worktable 6, and then fold the level 13 through the hinge 17, and then turn the handwheel 8, so that the worktable 6 slowly rises to the level of the block to be tested. The measured surface pushes up the indenter 5, pulls the loading handle 9 in the direction of the force, and applies the main experimental force. Experiment with the force, and finally read the corresponding scale number on the indicator 4.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (6)

1. A Rockwell hardness tester with an angle adjustment function, comprising a transverse arm (1), a body (2) and a base (3), wherein the upper end of the body (2) is fixedly connected with a transverse arm (1) , the transverse arm (1) is provided with an indicator (4), the lower surface of the transverse arm (1) is provided with an indenter (5), and the body (2) is provided with a quilt for detecting the block to be tested The leveling device for measuring the level of the surface, the lower end of the body (2) is fixedly connected with a base (3), the upper surface of the base (3) is provided with a handwheel (8), and the handwheel (8) is movably connected with a lead screw (7), the upper end of the lead screw (7) is provided with a workbench (6), and an adjusting device for adjusting the angle of the workbench (6) is provided between the lead screw (7) and the workbench (6). The side of the base (3) is provided with a loading handle (9) and an unloading handle (10). 2 . The Rockwell hardness tester with an angle adjustment function according to claim 1 , wherein the horizontal device comprises a hinge ( 17 ), a mounting plate ( 18 ) and a level ( 13 ). The body (2) is movably connected with a hinge (17), the hinge (17) is movably connected with a mounting plate (18), and the mounting plate (18) is fixedly connected with a level (13). 3. A Rockwell hardness tester with an angle adjustment function according to claim 1, wherein the adjustment device comprises a fixed rod (15), a universal ball head (12), a connector (14), A telescopic rod (11) and a fixing bolt (16), a fixing rod (15) is fixedly connected to the upper end of the lead screw (7), and a universal ball head (12) is fixedly connected to the upper end of the fixing rod (15). The universal ball head (12) is movably connected with a connector (14), the connector (14) is fixedly connected with a workbench (6), and a telescopic rod (11) is fixedly connected at the bottom of the workbench (6), so The telescopic rod (11) is fixedly connected with a fixing rod (15), and a fixing bolt (16) is arranged on the telescopic rod (11). 4 . The Rockwell hardness tester with an angle adjustment function according to claim 1 , wherein the surface of the worktable ( 6 ) is covered with a rubber material for anti-slip, and a magnet is provided inside. 5 . 5 . The Rockwell hardness tester with an angle adjustment function according to claim 1 , wherein the protective cover of the indicator ( 4 ) is a convex lens. 6 . 6 . The Rockwell hardness tester with an angle adjustment function according to claim 3 , wherein the number of the telescopic rods ( 11 ) is not less than three, and the center of the workbench ( 6 ) is the center of the circle. 7 . point, the circular array is at the bottom of the table (6).

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