Metal hardness test bed with adjustable force

Abstract

The utility model relates to the technical field of metal hardness test benches, in particular to a force-adjustable metal hardness test bench which comprises a hydraulic experiment machine pedestal, a support frame is fixedly mounted on the hydraulic experiment machine pedestal, a hydraulic cylinder is fixedly mounted on a top plate body of the support frame, and a downward pressing convex column is fixedly mounted at the tail end of a telescopic shaft of the hydraulic cylinder. A fixing disc is fixedly installed at the top end of the downward pressing protruding column, an upper fixing sleeve arranged on the telescopic shaft in a sleeving mode is fixedly installed on the bottom face of a top plate body of the supporting frame, a lower sliding sleeve arranged on the telescopic shaft in a sleeving mode is fixedly installed on the fixing disc, and the upper fixing sleeve is arranged on the lower sliding sleeve in a sleeving mode and connected with the lower sliding sleeve in a sliding mode. A testing panel is arranged on the surface of the hydraulic experiment machine pedestal, a blocking frame is fixedly installed between the top face of the hydraulic experiment machine pedestal and the bottom face of a top plate body of the supporting frame, and a transparent door plate is hinged to the front side face of the blocking frame through a hinge. Anti-collision protection operation can be conveniently carried out on the telescopic shaft, and the telescopic shaft is not prone to being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of metal hardness test benches, and more specifically, to a metal hardness test bench with adjustable force. Background Art

[0002] In the fields of materials science and industrial manufacturing, the hardness of metal materials is one of the important indicators to measure their quality and service performance. Hardness is not only related to the wear resistance and compressive resistance of materials, but also directly affects the service life and safety of products. Accurately and efficiently detecting the hardness of metal materials is of great significance for ensuring product quality and optimizing production processes.

[0003] When conducting experiments on metal hardness, the experiments are usually carried out on a corresponding hydraulic testing machine. There is a test bench on this type of hydraulic testing machine. During specific operations, the metal is placed on the test bench, and then the telescopic shaft of the hydraulic cylinder on the hydraulic testing machine extends downward to squeeze the metal, so as to realize the operation of testing the hardness of the metal.

[0004] In addition, since this type of hydraulic testing machine uses the telescopic shaft of the hydraulic cylinder to extend for extrusion testing operations, along with the extension of the telescopic shaft of the hydraulic cylinder and the continuous operation of the hydraulic cylinder, it is possible to achieve adjustable-force experimental operations by controlling the extension amount of the telescopic shaft of the hydraulic cylinder and the force exerted on the metal.

[0005] However, when this type of metal hardness test bench is in use, since the telescopic shaft of the hydraulic cylinder is exposed and there is no corresponding anti-collision protection component outside the telescopic shaft, during the process of squeezing the metal, when the metal cracks and splashes onto the telescopic shaft, it is easy to cause damage to the telescopic shaft part. After the damaged telescopic shaft expands and contracts, it will affect the fit between the corresponding shaft cylinders, resulting in the normal extension and shortening of the telescopic shaft of the hydraulic cylinder being affected, which brings inconvenience to users. In view of this, we have proposed a metal hardness test bench with adjustable force. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide a metal hardness test bench with adjustable force to solve the defects mentioned in the above background art.

[0007] To achieve the above purpose, the present utility model provides the following technical solutions:

[0008] Metal hardness test bench with adjustable force, including a hydraulic testing machine base. A support frame is fixedly installed on the hydraulic testing machine base. A hydraulic cylinder is fixedly installed on the top plate of the support frame. The end of the telescopic shaft of the hydraulic cylinder is fixedly installed with a downward pressing convex column. The top of the downward pressing convex column is fixedly installed with a fixed disk. A upper fixed sleeve sleeving the telescopic shaft is fixedly installed on the bottom surface of the top plate of the support frame. A lower sliding sleeve sleeving the telescopic shaft is fixedly installed on the fixed disk. The upper fixed sleeve sleeves on the lower sliding sleeve and is slidably connected with the lower sliding sleeve. The upper fixed sleeve is composed of two symmetric semi-circular sleeves on the left and right. On the top sleeve body of the semi-circular sleeve, two symmetric first fixed convex blocks are fixedly installed on the left and right. The lower sliding sleeve is composed of two symmetric arc-shaped sleeves on the left and right. On the bottom sleeve body of the arc-shaped sleeve, two symmetric second fixed convex blocks are fixedly installed on the left and right. The corresponding front and rear first fixed convex blocks and the front and rear second fixed convex blocks are fixedly connected by fastening screws.

[0009] Preferably, a plurality of support legs arranged in a matrix are fixedly installed on the bottom surface of the hydraulic testing machine base, and the height of the support legs is between 5 cm and 15 cm.

[0010] Preferably, a test panel is arranged on the surface of the hydraulic testing machine base, and the test panel is located directly below the downward pressing convex column.

[0011] Preferably, a display screen is fixedly installed on the front side of the hydraulic testing machine base, and a plurality of pressure sensors arranged in a matrix are fixedly installed between the test panel and the top surface of the hydraulic testing machine base.

[0012] Preferably, a fixed ring is fixedly installed at the top of the semi-circular sleeve, and the fixed ring is fixedly installed on the bottom surface of the top plate of the support frame. A limiting ring is fixedly installed at the bottom of the lower sliding sleeve, and the limiting ring is fixedly installed on the fixed disk.

[0013] Preferably, a blocking frame is fixedly installed between the top surface of the hydraulic testing machine base and the bottom surface of the top plate of the support frame. The front side of the blocking frame is connected to the outside, and a transparent door panel is hinged on the front side of the blocking frame through a hinge.

[0014] Preferably, a door lock is arranged on the transparent door panel, and a handle is fixedly installed on the transparent door panel.

[0015] Preferably, a plurality of vertically arranged compression-resistant columns are fixedly installed on the inner surface of the blocking frame, and the two ends of the compression-resistant columns are respectively fixedly installed on the top surface of the hydraulic testing machine base and the bottom surface of the top plate of the support frame.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] 1. The utility model can use the hydraulic cylinder to drive the downward pressing convex column to move downward to extrude the metal for testing operations through the provided hydraulic cylinder and downward pressing convex column. In addition, through the provided upper fixing sleeve and lower sliding sleeve, since they are slidably connected, it will not affect the normal expansion and contraction of the telescopic shaft. At the same time, the upper fixing sleeve and the lower sliding sleeve protect the telescopic shaft inside, so that the broken metal will not directly impact the telescopic shaft to cause damage to the telescopic shaft part, achieving the effect of anti-collision protection for the telescopic shaft part.

[0018] 2. The utility model can play a protective role by setting the blocking frame and the transparent door panel. After closing the transparent door panel, it can avoid the broken metal from splashing outwards and hurting the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the utility model;

[0020] Figure 2 is the exploded structural schematic diagram of the utility model;

[0021] Figure 3 is one of the partial structural schematic diagrams of the utility model;

[0022] Figure 4 is the second of the partial structural schematic diagrams of the utility model;

[0023] The meanings of the various reference numerals in the figure are as follows:

[0024] 1. Hydraulic testing machine base; 10. Support leg; 11. Display screen; 12. Test panel; 121. Pressure sensor; 13. Support frame;

[0025] 2. Blocking frame; 20. Compression-resistant column; 21. Transparent door panel; 22. Door lock; 23. Handle;

[0026] 3. Hydraulic cylinder; 30. Telescopic shaft; 31. Downward pressing convex column; 32. Fixed disk; 33. Upper fixing sleeve; 331. Semi-circular sleeve; 332. Fixed ring; 333. First fixed convex block; 34. Lower sliding sleeve; 341. Arc-shaped sleeve; 342. Limit ring; 343. Second fixed convex block. DETAILED DESCRIPTION OF THE EMBODIMENTS [[ID=**38]]

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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 embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1-4 Figures 1-4

[0029] Specifically, a fixed disk 32 is fixedly installed at the top end of the downward pressing convex column 31, an upper fixed sleeve 33 sleeved on the telescopic shaft 30 is fixedly installed on the bottom surface of the top plate body of the support frame 13, a lower sliding sleeve 34 sleeved on the telescopic shaft 30 is fixedly installed on the fixed disk 32, the upper fixed sleeve 33 is sleeved on the lower sliding sleeve 34 and is slidably connected with the lower sliding sleeve 34. The upper fixed sleeve 33 is composed of two symmetric semi-circular sleeves 331 on the left and right. Two symmetric first fixed convex blocks 333 are fixedly installed on the top sleeve bodies of the semi-circular sleeves 331. The lower sliding sleeve 34 is composed of two symmetric arc-shaped sleeves 341 on the left and right. Two symmetric second fixed convex blocks 343 are fixedly installed on the bottom sleeve bodies of the arc-shaped sleeves 341. The front and rear two corresponding first fixed convex blocks 333 and the front and rear two second fixed convex blocks 343 are fixedly connected by fastening screws, so as to protect the upper fixed sleeve 33 and the lower sliding sleeve 34 sleeved on the telescopic shaft 30.

[0030] In this embodiment, a plurality of support legs 10 arranged in a matrix are fixedly installed on the bottom surface of the hydraulic testing machine base 1. The height of the support legs 10 is between 5 cm and 15 cm, so as to support by using the support legs 10.

[0031] Specifically, a test panel 12 is arranged on the surface of the hydraulic testing machine base 1. The test panel 12 is located directly below the downward pressing convex column 31, so as to place the metal on the test panel 12 for extrusion testing operation. A display screen 11 is fixedly installed on the front side surface of the hydraulic testing machine base 1. A plurality of pressure sensors 121 arranged in a matrix are fixedly installed between the test panel 12 and the top surface of the hydraulic testing machine base 1. The detected values of the pressure sensors 121 are displayed on the display screen 11, which is convenient to understand the downward pressure. The pressure sensors 121, the display screen 11 and the electrical connection relationship between the two are all conventional technologies and will not be elaborated here.

[0032] Further, a fixing ring 332 is fixedly installed at the top end of the semi-circular sleeve 331. The fixing ring 332 is fixedly installed on the bottom surface of the top plate body of the support frame 13 through a plurality of fastening screws. A limiting ring 342 is fixedly installed at the bottom end of the sliding sleeve 34. The limiting ring 342 is fixedly installed on the fixed disk 32 through a plurality of fastening screws, which is convenient for the fixed installation operation.

[0033] In addition, a blocking frame 2 is fixedly installed between the top surface of the hydraulic testing machine base 1 and the bottom surface of the top plate body of the support frame 13. The front side of the blocking frame 2 is communicated with the outside. A transparent door panel 21 is hinged on the front side surface of the blocking frame 2 to realize the anti-metal splash protection operation by using the blocking frame 2 and the transparent door panel 21.

[0034] It is worth noting that a door lock 22 is arranged on the transparent door panel 21, and a handle 23 is fixedly installed on the transparent door panel 21, which is convenient for the opening and closing operation of the transparent door panel 21.

[0035] It should be noted that a plurality of vertically arranged compressive columns 20 are fixedly installed on the inner surface of the blocking frame 2. The two end parts of the compressive column 20 are respectively fixedly installed on the top surface of the hydraulic testing machine base 1 and the bottom surface of the top plate body of the support frame 13, so as to realize the effect of further compressive support on the top plate body of the support frame 13 by using the compressive column 20.

[0036] When the adjustable-force metal hardness test bench of the present utility model is in use, the test metal is placed on the test panel 12, and then the transparent door panel 21 is closed. The hydraulic cylinder 3 is started and made to work. When the hydraulic cylinder 3 works, the telescopic shaft 30 on it elongates and drives the downward pressing convex column 31 to move downward. The downward pressing convex column 31 presses downward on the metal on the test panel 12. As the telescopic shaft 30 continuously elongates, the downward pressing force increases, so as to realize the extrusion test operation of the metal.

[0037] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A metal hardness test bench with adjustable force, comprising a hydraulic testing machine base (1), characterized in that: A support frame (13) is fixedly installed on the pedestal (1) of the hydraulic testing machine. A hydraulic cylinder (3) is fixedly installed on the top plate body of the support frame (13). A downward pressing convex column (31) is fixedly installed at the end of the telescopic shaft (30) of the hydraulic cylinder (3). A fixed disk (32) is fixedly installed at the top end of the downward pressing convex column (31). An upper fixed sleeve (33) sleeved on the telescopic shaft (30) is fixedly installed on the bottom surface of the top plate body of the support frame (13). A downward sliding sleeve (34) sleeved on the telescopic shaft (30) is fixedly installed on the fixed disk (32). The upper fixed sleeve (33) is sleeved on the downward sliding sleeve (34) and is slidably connected with the downward sliding sleeve (34). The upper fixed sleeve (33) is composed of two symmetric semi-circular sleeves (331) on the left and right. Two symmetric first fixed convex blocks (333) are fixedly installed on the top sleeve body of the semi-circular sleeve (331). The downward sliding sleeve (34) is composed of two symmetric arc-shaped sleeves (341) on the left and right. Two symmetric second fixed convex blocks (343) are fixedly installed on the bottom sleeve body of the arc-shaped sleeve (341). The front and rear corresponding first fixed convex blocks (333) and the front and rear corresponding second fixed convex blocks (343) are fixedly connected by fastening screws.

2. The adjustable-force metal hardness test bench according to claim 1, wherein: A plurality of support legs (10) arranged in a matrix are fixedly installed on the bottom surface of the pedestal (1) of the hydraulic testing machine. The height of the support legs (10) is between 5 cm and 15 cm.

3. The adjustable-force metal hardness test bench according to claim 1, wherein: A test panel (12) is arranged on the surface of the pedestal (1) of the hydraulic testing machine. The test panel (12) is located directly below the downward pressing convex column (31).

4. The adjustable-force metal hardness test bench according to claim 3, wherein: A display screen (11) is fixedly installed on the front side surface of the pedestal (1) of the hydraulic testing machine. A plurality of pressure sensors (121) arranged in a matrix are fixedly installed between the test panel (12) and the top surface of the pedestal (1) of the hydraulic testing machine.

5. The adjustable-force metal hardness test bench according to claim 1, wherein: A fixed ring (332) is fixedly installed at the top end of the semi-circular sleeve (331). The fixed ring (332) is fixedly installed on the bottom surface of the top plate body of the support frame (13). A limit ring (342) is fixedly installed at the bottom end of the downward sliding sleeve (34). The limit ring (342) is fixedly installed on the fixed disk (32).

6. The adjustable-force metal hardness test bench according to claim 1, wherein: A blocking frame (2) is fixedly installed between the top surface of the pedestal (1) of the hydraulic testing machine and the bottom surface of the top plate body of the support frame (13). The front side of the blocking frame (2) is communicated with the outside. A transparent door panel (21) is hinged on the front side surface of the blocking frame (2).

7. The adjustable-force metal hardness test bench according to claim 6, wherein: A door lock (22) is arranged on the transparent door panel (21). A handle (23) is fixedly installed on the transparent door panel (21).

8. The adjustable-force metal hardness test bench according to claim 7, characterized in that: A plurality of vertically arranged compressive columns (20) are fixedly installed on the inner surface of the blocking frame (2). The two end parts of the compressive columns (20) are respectively fixedly installed on the top surface of the pedestal (1) of the hydraulic testing machine and the bottom surface of the top plate body of the support frame (13).

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