Rockwell hardness tester

Abstract

The utility model discloses a Rockwell hardness tester, relates to the technical field of hardness testers, and adopts the technical scheme that the Rockwell hardness tester comprises a Rockwell hardness tester body, the Rockwell hardness tester body comprises a detection table, the detection table is provided with a plurality of connecting holes extending along a Z axis, and the connecting holes are communicated with the detection table. The multiple connecting holes are evenly distributed in the detection table, supporting rods are slidably connected into the connecting holes, and resistance assemblies used for increasing friction force between the connecting holes and the supporting rods are arranged on the inner side walls of the connecting holes. The Rockwell hardness tester disclosed by the utility model has the advantage that a workpiece is not easy to shift.

Description

TECHNICAL FIELD

[0001] The utility model relates to hardness tester technical field, more specifically, it relates to a rockwell hardness tester. BACKGROUND

[0002] The rockwell hardness tester is a table type rockwell hardness tester, adopts rockwell measurement principle, is used for the hardness detection of carbon steel, alloy steel, cast iron, nonferrous metal and engineering plastics and the like material, has test precision height, measurement range is wide, main test force is automatically loaded and unloaded, measurement result digital display and automatic printing or with external computer communication and the like characteristics.

[0003] The existing rockwell hardness tester detects, usually directly places work piece on the detection table, when work piece is under pressure, is easy to move, makes the detection result appear error.

[0004] Therefore, a new scheme needs to be proposed to solve this problem. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model aims at providing a rockwell hardness tester, which solves the problem of workpiece displacement during detection of the existing rockwell hardness tester.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: the embodiment of the application provides a rockwell hardness tester, which comprises a rockwell hardness tester body, the rockwell hardness tester body comprises a detection table, the detection table is provided with connecting holes extending along the Z axis, the connecting holes are provided in plurality, the plurality of connecting holes are uniformly distributed on the detection table, a support rod is slidably connected in the connecting hole, and a resistance assembly for increasing the friction between the connecting hole and the support rod is arranged on the inner side wall of the connecting hole.

[0007] In one embodiment, the resistance assembly comprises a rubber ring, and the rubber ring is fixedly connected with the inner wall of the connecting hole.

[0008] In one embodiment, the detection table is internally provided with a cavity, the connecting hole is communicated with the cavity, a lifting plate is arranged in the cavity, the support rod is abuttable with the lifting plate, the side wall of the lifting plate is slidably connected with the side wall of the cavity, and the detection table is provided with a driving assembly capable of driving the lifting plate to ascend and descend.

[0009] In one of the embodiments, the driving assembly comprises a screw rod, one side of the detection table is provided with a first connecting plate, the first connecting plate is provided with a rotating groove, the lower part of the screw rod is provided with a knob, the knob is fixedly connected with a rotating block matched with the rotating groove, the rotating block is rotationally connected with the rotating groove, the detection table above the first connecting plate is provided with a connecting groove communicated with the cavity, the lifting plate is provided with a second connecting plate, the second connecting plate is extended out of the cavity by the connecting groove, the second connecting plate is provided with a threaded hole penetrating through, and the threaded hole is threadedly connected with the screw rod.

[0010] In one of the embodiments, the outer wall of the knob is provided with a twisting rod.

[0011] In conclusion, the utility model has the following beneficial effects: the utility model discloses a connecting hole is arranged on the detection table, a supporting rod is arranged in the connecting hole, and a resistance assembly is arranged between the supporting rod and the connecting rod, so that when the workpiece is pressed down, the supporting rod below the workpiece can be pressed down, and the supporting rods around the workpiece are not easy to move down when not subjected to external force due to the arrangement of the resistance assembly, so that the supporting rods around the workpiece can limit the workpiece, so that the workpiece is not easy to shift during detection, and the test result is accurate. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 Structure diagram of Rockwell hardness tester of the embodiment of the application Figure 1 ;

[0013] Figure 2 Structure diagram of Rockwell hardness tester of the embodiment of the application Figure 2 ;

[0014] Figure 3 Enlarged view of A part of Figure 2 ;

[0015] Figure 4 Cross-sectional view of the detection table in the Rockwell hardness tester of the embodiment of the application

[0016] Figure 5 Structure diagram of B part of Figure 4 .

[0017] In the figure: 1, Rockwell hardness tester body; 2, detection table; 21, supporting rod; 22, rubber ring; 23, cavity; 231, lifting plate; 2311, second connecting plate; 24, first connecting plate; 241, knob; 2411, rotating block; 2412, twisting rod; 242, screw rod; 25, connecting groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0019] As shown in Figure 1 and Figure 4 The embodiment of the present application provides a Rockwell hardness tester, which comprises a Rockwell hardness tester body 1, the Rockwell hardness tester body 1 comprises a detection table 2, the detection table 2 is provided with a connecting hole extending along the Z axis, a plurality of connecting holes are arranged on the detection table 2, the plurality of connecting holes are uniformly distributed on the detection table 2, a supporting rod 21 is slidably connected in the connecting hole, and a resistance assembly for increasing the friction between the connecting hole and the supporting rod 21 is arranged on the inner side wall of the connecting hole.

[0020] Specifically, the diameter of the connecting hole can be less than 1 mm, and the distance between every two connecting holes can be the same as the diameter of one connecting hole.

[0021] In work, the workpiece to be detected is placed on the supporting rod 21, and then the workpiece is pressed down, the supporting rod 21 below the workpiece moves downward, when the supporting rod 21 is pressed down to the extent that it cannot move downward any more, the upper surface of the supporting rod 21 is located in the same plane as the upper surface of the detection table 2, the supporting rod 21 below the workpiece moves downward while the supporting rods 21 around the workpiece remain stationary, so that the workpiece is limited around during hardness detection, and the workpiece is not easy to move, so that the detection result is accurate. It should be noted that the more supporting rods 21 are arranged and the smaller the diameter is, the better the limiting effect is.

[0022] The above structure is arranged, the connecting hole is arranged on the detection table 2, the supporting rod 21 is arranged in the connecting hole, and the resistance assembly is arranged between the supporting rod 21 and the connecting rod, so that when the workpiece is pressed down, the supporting rod 21 below the workpiece can be pressed down, and the supporting rods 21 around the workpiece are not easy to move downward due to the arrangement of the resistance assembly, so that the supporting rods 21 around the workpiece can limit the workpiece, so that the workpiece is not easy to move during detection, and the test result is accurate.

[0023] In the embodiment, as shown in Figure 5 The resistance assembly comprises a rubber ring 22, and the rubber ring 22 is fixedly connected with the inner wall of the connecting hole.

[0024] The structure is arranged, the rubber ring 22 is arranged between the connecting hole and the supporting rod 21, so that the supporting rod 21 needs a certain size of force to move downward, and the gravity of the supporting rod 21 cannot make the supporting rod 21 move downward, preventing the supporting rod 21 around the workpiece from moving downward freely and affecting the limiting of the workpiece.

[0025] In the embodiment, as shown in Figure 4 The connecting hole is in communication with the cavity 23, the cavity 23 is internally provided with a lifting plate 231, the supporting rod 21 is abuttable with the lifting plate 231, the side wall of the lifting plate 231 is in sliding connection with the side wall of the cavity 23, and the detection table 2 is provided with a driving assembly capable of driving the lifting plate 231 to ascend and descend.

[0026] When the workpiece is placed, the driving assembly is first controlled to lower the lifting plate 231, so that the lifting plate 231 is in contact with the bottom of the cavity 23, then the workpiece is placed and pressed downward, so that the supporting rod 21 under the workpiece is in contact with the lifting plate 231, at this time, the upper surface of the supporting rod 21 is located in the same plane as the upper surface of the detection table 2, when the detection is completed, the driving assembly controls the lifting plate 231 to ascend, so that the lifting plate 231 lifts the supporting rod 21 under the workpiece, so that each supporting rod 21 is located at the same height and the supporting rod 21 supports the workpiece, facilitating the taking of the workpiece.

[0027] In the embodiment, as shown in Figure 2 And Figure 3 The driving assembly comprises a screw rod 242, one side of the detection table 2 is provided with a first connecting plate 24, the first connecting plate 24 is provided with a rotating groove, the lower portion of the screw rod 242 is provided with a knob 241, the knob 241 is fixedly connected with a rotating block 2411 matched with the rotating groove, the rotating block 2411 is in rotating connection with the rotating groove, the detection table 2 above the first connecting plate 24 is provided with a connecting groove 25 in communication with the cavity 23, the lifting plate 231 is provided with a second connecting plate 2311, the second connecting plate 2311 extends out of the cavity 23 through the connecting groove, the second connecting plate 2311 is provided with a threaded hole penetrating therethrough, and the threaded hole is in threaded connection with the screw rod 242.

[0028] In work, the knob 241 is twisted, the screw rod 242 rotates, and the threaded force drives the lifting plate 231 to ascend and descend.

[0029] In the embodiment, the outer wall of the knob 241 is provided with a twisting rod 2412.

[0030] The structure is arranged, the length direction of the screwing rod 2412 is perpendicular to the length direction of the screw rod 242, and the screwing of the knob 241 is more labor-saving.

[0031] The above merely describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A Rockwell hardness tester, comprising a Rockwell hardness tester body (1), characterized in that: The Rockwell hardness tester body (1) includes a testing stage (2), on which a connecting hole extending along the Z-axis is provided. Multiple connecting holes are provided and are evenly distributed on the testing stage (2). A support rod (21) is slidably connected in the connecting hole. A resistance component for increasing the friction between the connecting hole and the support rod (21) is provided on the inner sidewall of the connecting hole.

2. The Rockwell hardness tester according to claim 1, characterized in that: The resistance component includes a rubber ring (22), which is fixedly connected to the inner wall of the connection hole.

3. The Rockwell hardness tester according to claim 1, characterized in that: The testing platform (2) has a cavity (23) inside, and the connecting hole is connected to the cavity (23). A lifting plate (231) is provided inside the cavity (23). The support rod (21) can abut against the lifting plate (231). The side wall of the lifting plate (231) is slidably connected to the side wall of the cavity (23). The testing platform (2) is provided with a driving component that can drive the lifting plate (231) to rise and fall.

4. The Rockwell hardness tester according to claim 3, characterized in that: The drive assembly includes a screw (242), a first connecting plate (24) is provided on one side of the detection platform (2), the first connecting plate (24) is provided with a rotating groove, a knob (241) is provided at the lower part of the screw (242), a rotating block (2411) adapted to the rotating groove is fixedly connected to the knob (241), the rotating block (2411) is rotatably connected to the rotating groove, a connecting groove (25) communicating with the cavity (23) is provided on the detection platform (2) above the first connecting plate (24), a second connecting plate (2311) is provided on the lifting plate (231), the second connecting plate (2311) extends out of the cavity (23) from the connecting groove (25), a threaded hole is provided through the second connecting plate (2311), and the threaded hole is threadedly connected to the screw (242).

5. The Rockwell hardness tester according to claim 4, characterized in that: A turning lever (2412) is provided on the outer wall of the knob (241).

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