CN214703161U

CN214703161U - Auxiliary device for measuring Rockwell hardness of metal inclined plane

Info

Publication number: CN214703161U
Application number: CN202120565517.0U
Authority: CN
Inventors: 曹燕菊; 廖跃辉; 刘伟森
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-11-12
Anticipated expiration: 2031-03-19

Abstract

The utility model discloses a measure auxiliary device of metal inclined plane rockwell hardness installs on the elevating screw of rockwell hardness meter, and the auxiliary device of measuring metal inclined plane rockwell hardness includes: support frame, locating plate, locating piece and adjusting bracket. The support frame includes bottom and upper portion, and on the bottom was fixed in elevating screw, upper portion was fixed in on the bottom, and upper portion was the U type. One end of the positioning plate can be fixedly connected with the upper part of the supporting frame in a rotating way. The positioning block is movably fixed on the top of the positioning plate. And one end of the adjusting frame is movably fixedly connected with the other end of the positioning plate, and the other end of the adjusting frame is fixedly connected with one side of the upper part of the supporting frame. Wherein, the test piece is fixed in on the locating plate, and the locating piece is used for spacing to the test piece. Therefore, the utility model discloses a measure auxiliary device of metal inclined plane rockwell hardness, simple structure is reasonable, can carry out the rockwell hardness test to the inclined plane of test piece, and the test result is accurate.

Description

Auxiliary device for measuring Rockwell hardness of metal inclined plane

Technical Field

The utility model relates to a rockwell hardness test technical field especially relates to a measure auxiliary device of metal inclined plane rockwell hardness.

Background

The Rockwell hardness test method of the metal material comprises the following steps: pressing a pressure head with specific size, shape and material into the surface of the test piece according to a specified test method by two stages of test force, and measuring the initial indentation after the initial test force is loaded. And then applying a main test force, measuring the final indentation depth when the initial test force is maintained after the main test force is removed, and calculating the Rockwell hardness according to a formula by using the difference value and the constant of the final indentation depth and the initial indentation depth. In normal test, the sample surface requires to be bright and clean flat, and the test piece should be placed at the rigid support, and pressure head axis and loading direction are perpendicular with the test piece surface, and the measuring point avoids the test piece to produce the displacement in the test on the common axis of measuring head and lift lead screw. The cylindrical test piece is properly supported and placed on a test piece table with a centering V-shaped groove or a double-cylinder test piece. In rockwell hardness testing of an inclined plane test piece, an erroneous test result is caused because the axis of the indenter and the loading direction are not perpendicular to the surface of the test piece.

At present, no Rockwell hardness auxiliary device capable of testing an inclined plane test piece exists, and an auxiliary device capable of testing the Rockwell hardness of the inclined plane of the test piece is urgently needed to be designed.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a measure auxiliary device of metal inclined plane rockwell hardness, its simple structure is reasonable, can carry out the rockwell hardness test to the inclined plane of test piece, and the test result is accurate.

In order to achieve the above object, the utility model provides a measure auxiliary device of metal inclined plane rockwell hardness installs on the elevating screw of rockwell hardness meter, measures auxiliary device of metal inclined plane rockwell hardness and includes: support frame, locating plate, locating piece and adjusting bracket. The support frame includes bottom and upper portion, and on the bottom was fixed in elevating screw, upper portion was fixed in on the bottom, and upper portion was the U type. One end of the positioning plate can be fixedly connected with the upper part of the supporting frame in a rotating way. The positioning block is movably fixed on the top of the positioning plate. And one end of the adjusting frame is movably fixedly connected with the other end of the positioning plate, and the other end of the adjusting frame is fixedly connected with one side of the upper part of the supporting frame. Wherein, the test piece is fixed in on the locating plate, and the locating piece is used for spacing to the test piece.

In one embodiment of the present invention, the top of one side of the upper portion of the support frame has scale marks.

The utility model discloses an in the embodiment, first shaft hole has been seted up respectively to the both sides on the upper portion of support frame, and the second shaft hole has been seted up respectively to the both sides of the one end of locating plate, and the rotation axis passes first shaft hole and second shaft hole to make the locating plate can rotate ground and the upper portion fixed connection of support frame.

The utility model discloses an in the embodiment, seted up fixed screw on one side on the upper portion of support frame, the adjustment screw has been seted up to the side of the other end of locating plate, one of adjustment frame is served and has been seted up the adjustment slot hole, the fixed orifices has been seted up on the other end of adjustment frame, and the one end of adjustment frame passes the adjustment slot hole through adjusting screw and twists the adjustment screw of locating the locating plate, the other end of adjustment frame passes the fixed orifices through fixing screw and twists in the fixed screw of locating the upper portion of support frame.

In an embodiment of the present invention, a washer is disposed between the adjustment long hole of the adjustment frame and the adjustment screw hole of the positioning plate.

The utility model discloses an in the embodiment, the locating piece is V type locating piece, and the opening of locating piece is towards the test piece, and has seted up a plurality of locating holes on the locating piece.

The utility model discloses an in the embodiment, seted up at least one constant head tank on the top of locating piece, and the locating piece passes a plurality of locating holes through set screw and twists and locate in at least one constant head tank.

In an embodiment of the present invention, a positioning nut is disposed in at least one positioning groove, and the positioning nut and the positioning screw are adapted correspondingly.

The utility model discloses an in the embodiment, the quantity of a plurality of locating holes is four, and the quantity of at least one constant head tank is two, and two constant head tanks are T type constant head tanks, and still have a keyway between two constant head tanks, and the bottom of locating piece has the convex key, and the convex key can set up in the keyway with removing.

The utility model discloses an in the embodiment, positioning nut's quantity is four, and four positioning nut are T type positioning nut.

Compared with the prior art, according to the utility model discloses a measure auxiliary device of metal inclined plane rockwell hardness, simple structure is reasonable, can carry out the rockwell hardness test to the inclined plane of test piece, and the test result is accurate.

Drawings

Fig. 1 is a schematic overall three-dimensional structure of an auxiliary device for measuring rockwell hardness of a metal inclined plane according to an embodiment of the present invention;

fig. 2 is another schematic overall perspective view of an auxiliary device for measuring rockwell hardness of a metal slope according to an embodiment of the present invention.

Fig. 3 is a schematic overall side view of an auxiliary device for measuring rockwell hardness of a metal inclined plane according to an embodiment of the present invention.

FIG. 4 is a schematic view of an exploded view of an auxiliary device for measuring Rockwell hardness of a metal inclined plane according to an embodiment of the present invention;

fig. 5 is an exploded view of a support frame and a positioning plate of an auxiliary device for measuring rockwell hardness of a metal slope according to an embodiment of the present invention;

fig. 6 is a schematic view of a combination structure of a support frame and a positioning plate of an auxiliary device for measuring rockwell hardness of a metal slope according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an adjusting rack, a supporting rack and a positioning plate of an auxiliary device for measuring rockwell hardness of a metal inclined plane according to an embodiment of the present invention before installation.

Fig. 8 is a schematic structural diagram of an adjusting rack, a supporting rack and a positioning plate of an auxiliary device for measuring rockwell hardness of a metal slope according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of an auxiliary device for measuring rockwell hardness of a metal inclined plane according to an embodiment of the present invention, in which a positioning block is installed in front of a positioning plate.

Fig. 10 is a schematic structural diagram of an auxiliary device for measuring rockwell hardness of a metal inclined plane according to an embodiment of the present invention, in which a positioning block is mounted behind a positioning plate.

Fig. 11 is a schematic view of a rockwell hardness tester equipped with an auxiliary device for measuring rockwell hardness of a metal slope according to an embodiment of the present invention.

Fig. 12 is a schematic side view of the auxiliary device for measuring rockwell hardness of a metal slope according to an embodiment of the present invention, which is mounted on a rockwell hardness tester.

Fig. 13 is a schematic front view of a test piece according to an embodiment of the present invention.

Fig. 14 is a schematic perspective view of a test piece according to an embodiment of the present invention.

Fig. 15 is a schematic top view of a test piece mounted on a positioning plate according to an embodiment of the present invention.

Fig. 16 is a schematic side view of a test piece mounted on a positioning plate according to an embodiment of the present invention.

Description of the main reference numerals:

1-positioning nut, 2-positioning block, 3-positioning screw, 4-positioning plate, 5-support frame, 6-washer, 7-adjusting frame, 8-adjusting screw, 9-fixing screw, 10-rotating shaft, 11-test piece and 12-lifting screw rod.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1 to 16, an auxiliary device for measuring rockwell hardness of a metal slope according to a preferred embodiment of the present invention is mounted on a lifting screw 12 of a rockwell hardness tester, and includes: support frame 5, locating plate 4, locating piece 2 and alignment jig 7. The support frame 5 comprises a bottom part and an upper part, the bottom part is fixed on the lifting screw rod 12, the upper part is fixed on the bottom part, and the upper part is U-shaped. One end of the positioning plate 4 is fixedly connected with the upper part of the supporting frame 5 in a rotatable way. The positioning block 2 is movably fixed on the top of the positioning plate 4. And one end of the adjusting frame 7 is movably fixedly connected with the other end of the positioning plate 4, and the other end of the adjusting frame 7 is fixedly connected with one side of the upper part of the supporting frame 5. Wherein, the testing piece 11 is fixed on the positioning plate 4, and the positioning block 2 is used for limiting the testing piece 11.

In one embodiment of the present invention, the top of one side of the upper portion of the support frame 5 has scale marks.

The utility model discloses an in the embodiment, first shaft hole has been seted up respectively to the both sides on the upper portion of support frame 5, and the second shaft hole has been seted up respectively to the both sides of the one end of locating plate 4, and rotation axis 10 passes first shaft hole and second shaft hole to make locating plate 4 can rotate ground and the upper portion fixed connection of support frame 5.

The utility model discloses an in the embodiment, the fixed screw has been seted up on one side on the upper portion of support frame 5, the adjustment screw has been seted up to the side of the other end of locating plate 4, one of adjusting bracket 7 is served and has been seted up the adjustment slot hole, the fixed orifices has been seted up on the other end of adjusting bracket 7, and the one end of adjusting bracket 7 passes the adjustment slot hole through adjusting screw 8 and screws up in locating the adjustment screw of locating plate 4, the other end of adjusting bracket 7 passes the fixed orifices through set screw 9 and screws up in the fixed screw on the upper portion of support frame 5.

In one embodiment of the present invention, a washer 6 is disposed between the adjustment long hole of the adjustment frame 7 and the adjustment screw hole of the positioning plate 4. The positioning block 2 is a V-shaped positioning block 2, the opening of the positioning block 2 faces the testing piece 11, and the positioning block 2 is provided with a plurality of positioning holes.

The utility model discloses an in the embodiment, seted up at least one constant head tank on the top of locating piece 2, and locating piece 2 passes a plurality of locating holes through set screw 3 and twists and locate in at least one constant head tank. And a positioning nut 1 is arranged in at least one positioning groove, and the positioning nut 1 is correspondingly matched with the positioning screw 3.

The utility model discloses an in the embodiment, the quantity of a plurality of locating holes is four, and the quantity of at least one constant head tank is two, and two constant head tanks are T type constant head tanks, and still have a keyway between two constant head tanks, and the bottom of locating piece 2 has the convex key, and the convex key can set up in the keyway with removing. The number of the positioning nuts 1 is four, and the four positioning nuts 1 are T-shaped positioning nuts 1.

In one embodiment of the present invention, the supporting frame 5 is a supporting base of the device, and is shaped like a slingshot (i.e. the upper part is U-shaped), and the bottom is cylindrical, and has the same size as the V-shaped supporting table of the original rockwell hardness tester; the middle part is provided with a hole 9 for fixing a screw of the adjusting bracket 7; a mounting hole of a rotating shaft 10 is processed at the middle upper part; the top of the rotating shaft is processed into an arc shape, one end of the rotating shaft is provided with an angle scale mark, 0 degree of the rotating shaft is a horizontal position, the other end of the rotating shaft is processed with a centering scale mark, and the centering scale mark, the center line of the rotating shaft 10 and the center line of the cylinder at the bottom are on the same plane.

In one embodiment of the present invention, the positioning plate 4 is provided with two T-shaped positioning slots, which facilitates the installation and replacement of various positioning blocks 2; a key groove is processed between the two T-shaped positioning grooves; a rotating shaft 10 hole is processed at the bottom of the T-shaped positioning plate 4, and the axis of the rotating shaft 10 hole is on the bottom plane, so that the corresponding angle of the T-shaped positioning plate 4 on the support frame 5 is ensured to be 0 degree when the T-shaped positioning plate is in the horizontal position; the other end of the bottom is provided with a shaft hole.

In an embodiment of the present invention, the V-shaped positioning block 2 is processed with a V-shaped positioning slot to conveniently position the circular testing member 11. The bottom of the V-shaped positioning block 2 is provided with a convex key, and the convex key of the V-shaped positioning block 2 moves on the key groove of the T-shaped positioning plate 4 in an equal way during installation.

The utility model discloses an in the embodiment, loosen a adjusting screw 8 and set screw 9, T type locating plate 4 can rotate around rotation axis 10, and the upper surface rotation of T type locating plate 4 becomes the plane of an slope, and the plane corresponds 5 angle scales of support frame under the T type locating plate 4 and is inclination.

The utility model discloses an in the embodiment, loosen set screw 3, remove T type set nut 1, V type locating piece 2 and set screw 3, the adjustment is tested 11 pre-measurement points and is on the extension line of the centering scale mark of support frame 5, locks set screw 3, reaches and will test 11 pre-measurement point adjustment to on the axis of pressure head axis fast.

In an embodiment of the present invention, a triangular mechanism is formed when the gasket 6, the adjusting bracket 7, the adjusting screw 8, the fixing screw 9, the T-shaped positioning plate 4 and the supporting frame 5 are installed, which has high stability and is adjusted and locked within a certain angle.

In practical application, the utility model discloses a measure auxiliary device of metal inclined plane rockwell hardness can accurately adjust the inclined plane of 11 points of metal test piece at the in-process of test for the level to let the pre-measurement point aim at on the axis of pressure head axis rapidly, thereby accurately measure the hardness on metal inclined plane. In detail, the utility model discloses a measure auxiliary device of metal inclined plane rockwell hardness comprises following part: t-shaped positioning nuts 1, V-shaped positioning blocks 2, positioning screws 3, T-shaped positioning plates 4, a supporting frame 5, a gasket 6, an adjusting frame 7, adjusting screws 8, fixing screws 9 and a rotating shaft 10. The installation method of the device comprises the following steps: the shaft holes of the T-shaped positioning plates 4 are aligned with the shaft holes of the support frame 5, the rotating shaft 10 penetrates through the shaft holes of the support frame 5 to connect the T-shaped positioning plates 4 together to form a new component A, and the T-shaped positioning plates 4 can flexibly rotate around the rotating shaft 10 on the support frame 5 after being installed (as shown in figures 5 and 6). After the washer 6, the adjusting bracket 7, the adjusting screw 8 and the fixing screw 9 are mounted on the component a, a component B is formed (as shown in fig. 7 and 8). The whole auxiliary device is mounted by mounting the T-shaped positioning nut 1, the V-shaped positioning block 2 and the positioning screw 3 on the component B (as shown in fig. 9 and 10).

The use method of the device in the Rockwell hardness tester is as follows: the V-shaped support platform with the lifting screw rod of the original Rockwell hardness tester removed is removed, and the device is installed (as shown in figures 11 and 12). The angle a of the slope of the test piece 11 with the bottom surface was measured (as shown in fig. 13 and 14). The adjusting screws 8 and the fixing screws 9 are loosened, the supporting angle of the bottom surface of the T-shaped positioning plate 4 on the supporting frame 5 is adjusted to be a, and then the adjusting screws 8 and the fixing screws 9 are locked and loosened (as shown in fig. 2 and 3). The test piece 11 is placed on the surface of the T-shaped positioning plate 4, the positioning screw 3 is loosened, the T-shaped positioning nut 1, the V-shaped positioning block 2 and the positioning screw 3 are moved, the pre-measuring point of the test piece 11 is adjusted to be on the extension line of the centering scale line of the support frame 5, and the positioning screw 3 is locked (as shown in fig. 15). At this time, the inclined surface of the test piece 11 was adjusted to be horizontal on the rockwell hardness tester, that is, the test surface of the test piece 11 was perpendicular to the indenter axis and the test force, and the measurement point was on the indenter axis, so that the test was performed at normal rockwell hardness (as shown in fig. 16).

In a word, the utility model discloses a measure auxiliary device on metal inclined plane rockwell hardness, simple structure is reasonable, and the inclined plane that can accurate adjustment metal test piece 11 points at the in-process of test is the level to let the pre-measurement point aim at on the axis of pressure head axis rapidly, thereby measure the hardness on metal inclined plane accurately.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. The utility model provides an auxiliary device of measurement metal inclined plane rockwell hardness, installs on the lift lead screw of rockwell hardness meter, characterized in that, auxiliary device of measurement metal inclined plane rockwell hardness includes:

the support frame comprises a bottom and an upper part, the bottom is fixed on the lifting screw rod, the upper part is fixed on the bottom, and the upper part is U-shaped;

one end of the positioning plate can be fixedly connected with the upper part of the supporting frame in a rotating manner;

the positioning block is movably fixed on the top of the positioning plate; and

one end of the adjusting frame is movably and fixedly connected with the other end of the positioning plate, and the other end of the adjusting frame is fixedly connected with one side of the upper part of the supporting frame;

the testing piece is fixed on the positioning plate, and the positioning block is used for limiting the testing piece.

2. The assistant apparatus for measuring rockwell hardness on metal slopes according to claim 1, wherein said one side of said upper portion of said support frame has graduation marks on the top thereof.

3. The auxiliary device for measuring the rockwell hardness of a metal slope according to claim 1, wherein first shaft holes are respectively formed at two sides of the upper portion of the supporting frame, second shaft holes are respectively formed at two sides of the one end of the positioning plate, and a rotating shaft passes through the first shaft holes and the second shaft holes, so that the positioning plate can be rotatably and fixedly connected with the upper portion of the supporting frame.

4. The auxiliary device for measuring the rockwell hardness of a metal slope according to claim 1, wherein said one side of said upper portion of said supporting frame is provided with a fixing screw hole, a side surface of said other end of said positioning plate is provided with an adjusting screw hole, one end of said adjusting frame is provided with an adjusting long hole, the other end of said adjusting frame is provided with a fixing hole, and one end of said adjusting frame is screwed into said adjusting screw hole of said positioning plate by passing through said adjusting long hole through an adjusting screw, and the other end of said adjusting frame is screwed into said fixing screw hole of said upper portion of said supporting frame by passing through said fixing hole through a fixing screw.

5. The auxiliary device for measuring the Rockwell hardness of a metal slope according to claim 4, wherein a washer is disposed between the adjustment long hole of the adjustment bracket and the adjustment screw hole of the positioning plate.

6. The auxiliary device for measuring the rockwell hardness of a metal slope according to claim 1, wherein the positioning block is a V-shaped positioning block, an opening of the positioning block faces the test piece, and the positioning block is provided with a plurality of positioning holes.

7. The auxiliary device for measuring the Rockwell hardness of a metal slope according to claim 6, wherein at least one positioning groove is formed on the top of the positioning block, and the positioning block is screwed into the at least one positioning groove by a positioning screw passing through the plurality of positioning holes.

8. The device as claimed in claim 7, wherein the at least one positioning groove has a positioning nut therein, and the positioning nut is correspondingly adapted to the positioning screw.

9. The auxiliary device for measuring the rockwell hardness of a metal slope according to claim 8, wherein the number of the positioning holes is four, the number of the at least one positioning groove is two, both positioning grooves are T-shaped positioning grooves, a key groove is further formed between the two positioning grooves, and a key is provided at the bottom of the positioning block and movably disposed in the key groove.

10. The assistant device for measuring the rockwell hardness of metal slopes according to claim 8, wherein the number of said positioning nuts is four, and all four of said positioning nuts are T-shaped nuts.