Vickers hardness tester

Abstract

The utility model discloses a Vickers hardness tester, which comprises a machine table, a base, a driving device and a driving device, the machining platform is arranged on the machine table; the motor is fixed in the storage cavity; the bottom end of the screw rod is connected with the output end of the motor; the transmission plate is arranged on the lead screw in a sleeving manner and is driven by the lead screw to ascend and descend; the guide assembly is arranged in the storage cavity, connected with the transmission plate and used for guiding operation of the transmission plate; the shell is connected with the transmission plate; and the durometer assembly is connected with the shell. According to the utility model, the lead screw drives the shell and the durometer assembly to descend, so that the whole structure is compact, and the occupied space is small.

Description

Technical Field

[0001] The utility model relates to the technical field of hardness testers, and particularly relates to a Vickers hardness tester. Background Art

[0002] The Vickers hardness test is mainly used for small-load Vickers hardness tests in material research and scientific experiments. It is mainly used to test the hardness of small precision parts, the hardness of the surface hardened layer and the effective hardened layer depth, the surface hardness of the coating, the hardness of thin sheet materials and thin wire materials, the hardness near the blade, the hardness of dental materials, etc. Since the test force is very small, the indentation is also very small, and the appearance and service performance of the specimen can be unaffected. At present, the transmission mechanisms inside Vickers hardness testers all adopt the lever downward pressing type, with relatively large overall structural dimensions and occupying a large space. Summary of the Invention

[0003] According to an embodiment of the present utility model, there is provided a Vickers hardness tester, comprising:

[0004] A machine table, on which a placement cavity is provided;

[0005] A processing platform, which is arranged on the machine table;

[0006] A motor, which is fixed in the placement cavity;

[0007] A lead screw, the bottom end of which is connected to the output end of the motor;

[0008] A transmission plate, which is sleeved on the lead screw and moves up and down under the drive of the lead screw;

[0009] A guiding component, which is arranged in the placement cavity and is connected to the transmission plate for guiding the operation of the transmission plate;

[0010] A housing, which is connected to the transmission plate;

[0011] A hardness tester assembly, which is connected to the housing.

[0012] Furthermore, the guiding component comprises:

[0013] Two columns, the bottom ends of which are fixed in the placement cavity, and the top ends of which penetrate through the transmission plate.

[0014] Furthermore, the guiding component further comprises: two linear bearings, which are embedded in the transmission plate and respectively sleeved on the two columns.

[0015] Furthermore, it further comprises: a dust cover, which connects the machine table and the housing and covers the placement cavity.

[0016] Furthermore, it further comprises:

[0017] A limiting plate, which is connected to the inner wall of the top of the housing and extends into the storage cavity;

[0018] A limiting bearing, which is arranged on the inner wall of the top of the machine table.

[0019] Furthermore, it further includes: a buffer pad, which is arranged on the top of the limiting plate.

[0020] Furthermore, the transmission plate is of an L-shaped structure.

[0021] Furthermore, reinforcing ribs are arranged on the transmission plate.

[0022] Furthermore, the machine table is of an L-shaped structure.

[0023] According to a Vickers hardness tester of an embodiment of the present invention, by adopting the method of driving the housing and the hardness tester assembly to descend by a lead screw, the overall structure is compact and occupies a small space.

[0024] It should be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. is a schematic front sectional view of a Vickers hardness tester according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will describe in detail the preferred embodiments of the present invention with reference to the drawings and further elaborate on the present invention.

[0027] First, in combination with Figure 1 A Vickers hardness tester according to an embodiment of the present invention will be described, which is used for hardness testing and has a wide range of application scenarios.

[0028] As Figure 1 shown, a Vickers hardness tester according to an embodiment of the present invention includes a machine table 1, a processing platform 2, a motor 3, a lead screw 4, a transmission plate 5, a guiding assembly, a housing 7, and a hardness tester assembly 8.

[0029] Specifically, as Figure 1 shown, a storage cavity 11 is provided on the machine table 1; the processing platform 2 is arranged on the machine table 1; the motor 3 is fixed in the storage cavity 11; the bottom end of the lead screw 4 is connected to the output end of the motor 3; the transmission plate 5 is sleeved on the lead screw 4 and moves up and down under the drive of the lead screw 4; the guiding assembly is arranged in the storage cavity 11 and is connected to the transmission plate 5 for guiding the operation of the transmission plate 5; the housing 7 is connected to the transmission plate 5; the hardness tester assembly 8 is connected to the housing 7, and the hardness tester assembly 8 has a downward pressing mechanism with a indenter.

[0030] Furthermore, as Figure 1As shown in the figure, the guiding assembly includes: two columns 61. The bottoms of the two columns 61 are fixed in the placement cavity 11. The tops of the two columns 61 penetrate through the transmission plate 5, and the transmission plate 5 is guided by the columns 61 to ensure the stability of the lifting of the transmission plate 5.

[0031] Furthermore, as Figure 1 shown in the figure, the guiding assembly further includes: two linear bearings 62. The two linear bearings 62 are embedded in the transmission plate 5 and respectively sleeved on the two columns 61 to reduce friction.

[0032] Furthermore, as Figure 1 shown in the figure, a Vickers hardness tester according to an embodiment of the present invention further includes: a dust-proof cover 91. The dust-proof cover 91 is connected to the machine table 1 and the housing 7, covers the placement cavity 11, prevents dust from entering the placement cavity 11, affects the operation of the workpiece in the placement cavity 11, and extends the service life.

[0033] Furthermore, as Figure 1 shown in the figure, a Vickers hardness tester according to an embodiment of the present invention further includes: a limit plate 92 and a limit bearing 93. The limit plate 92 is connected to the inner wall of the top of the housing 7 and extends into the placement cavity 11; the limit bearing 93 is arranged on the inner wall of the top of the machine table 1. Through the arrangement of the limit plate 92 and the limit bearing 93, it is used to limit the upward travel of the moving plate

[0034] Furthermore, as Figure 1 shown in the figure, a Vickers hardness tester according to an embodiment of the present invention further includes: a buffer pad 94. The buffer pad 94 is arranged on the top of the limit plate 92 and is used for buffering when the limit plate 92 contacts the limit bearing 93.

[0035] Furthermore, as Figure 1 shown in the figure, the transmission plate 5 is of an L-shaped structure, and reinforcing ribs 95 are arranged on the transmission plate 5 to improve the strength and ensure the stability of the equipment operation.

[0036] Furthermore, as Figure 1 shown in the figure, the machine table 1 is of an L-shaped structure, the overall structure is compact, the design is reasonable, and the occupied space is reduced.

[0037] During use, place the workpiece on the processing platform 2, and then control the motor 3 to operate, drive the lead screw 4 to rotate. The transmission plate 5 descends under the drive of the lead screw 4, so that the housing 7 and the hardness tester assembly 8 descend to a suitable position, and then the hardness tester assembly 8 performs corresponding hardness test processing on the workpiece.

[0038] Above, with reference to Figure 1 described a Vickers hardness tester according to an embodiment of the present invention. By adopting the method of driving the housing 7 and the hardness tester assembly 8 to descend by the lead screw 4, the overall structure is compact and the occupied space is small.

[0039] It should be noted that in this specification, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, elements defined by the statement "comprising..." do not preclude the presence of additional identical elements in the process, method, article or device comprising such elements.

[0040] Although the content of the present utility model has been introduced in detail through the above preferred embodiments, it should be recognized that the above description should not be construed as a limitation of the present utility model. After those skilled in the art have read the above content, various modifications and alternatives to the present utility model will be obvious. Therefore, the protection scope of the present utility model should be defined by the appended claims.

Claims

1. A Vickers hardness tester, characterized in that: Include: A machine platform, wherein a storage cavity is provided on the machine platform; A processing platform, wherein the processing platform is arranged on the machine platform; A motor, wherein the motor is fixed in the storage cavity; A screw rod, the bottom end of which is connected to the output end of the motor; A transmission plate, which is sleeved on the screw rod and is lifted and lowered under the drive of the screw rod; A guide assembly, the guide assembly is arranged in the storage cavity and connected to the transmission plate, and is used to guide the operation of the transmission plate; A housing connected to the transmission plate; A hardness tester assembly is connected to the shell.

2. The Vickers hardness tester according to claim 1, characterized in that: The guide assembly comprises: Two upright posts, the bottom ends of the two upright posts are fixed in the storage cavity, and the top ends of the two upright posts pass through the transmission plate.

3. The Vickers hardness tester according to claim 2, characterized in that: The guide assembly further comprises: two linear bearings, which are embedded in the transmission plate and respectively sleeved on the two columns.

4. The Vickers hardness tester according to claim 1, characterized in that: It also includes: a dust cover, which is connected to the machine platform and the shell and covers the storage cavity.

5. The Vickers hardness tester according to claim 1, characterized in that: Also includes: A limiting plate, the limiting plate is connected to the top inner wall of the shell and extends into the storage cavity; A limit bearing is arranged on the top inner wall of the machine platform.

6. The Vickers hardness tester according to claim 5, characterized in that: It also includes a buffer pad, which is arranged on the top of the limiting plate.

7. The Vickers hardness tester according to claim 1, characterized in that: The transmission plate is an L-shaped structure.

8. The Vickers hardness tester according to claim 1, characterized in that: The transmission plate is provided with reinforcing ribs.

9. The Vickers hardness tester according to claim 1, characterized in that: The machine platform is an L-shaped structure.

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