High-pressure press for measuring material performance

Abstract

The utility model relates to the technical field of material performance testing devices, in particular to a high-pressure pressing machine for measuring material performance, which comprises a pressing machine, a pressure sensor and a controller. The protection device comprises a protection plate, and the protection plate is rotatably provided with a protection door through a rotating device; and the driving device comprises an extrusion box, and the extrusion box is connected with the pressure plate through an adjusting device. The driving device is arranged, the extrusion box and the pressure plate are connected through the adjusting device, the extrusion box can move along with the pressure plate, the rotating arm is pressed downwards through the extrusion box, the protection door is automatically opened and closed in cooperation with the self weight of the protection door, the experiment efficiency is improved, and potential safety hazards are avoided; by arranging the adjusting motor, the adjusting motor is used for driving the adjusting screw rod to rotate, so that the extrusion box is driven to move up and down relative to the adjusting plate, the distance from the bottom of the extrusion box to the rollers is adjusted, the distance between the pressure plate and the base is adjusted, and experiments of materials with different sizes are met.

Description

Technical Field

[0001] The utility model relates to the technical field of material performance testing devices, in particular to a high-pressure press for measuring material performance. Background Art

[0002] The performance of a material generally refers to its mechanical properties, that is, the ability of the material to resist external forces without being destroyed, also known as material strength. Depending on the way the external forces act, the strength of a material can be roughly divided into four parts: tensile strength, compressive strength, shear strength and flexural strength.

[0003] The measurement of material strength generally uses a press. Different clamps are used to fix the material. The press is used to apply pressure to the material. The pressure applied by the press on the material is gradually increased until the material is damaged. The pressure applied by the press at the moment of material damage is the strength of the material. In actual tests, when the pressure on brittle materials exceeds the material strength limit, they will break, split into multiple fragments and produce splashes. The splashing fragments will affect the safety of the experimenters. Guardrails are usually set around the press to prevent the splashing of materials. However, the door of the guardrail needs to be opened and closed manually, which affects the progress of the experiment. In addition, experimenters sometimes forget to close the guardrail door, which poses a safety hazard. Utility Model Content

[0004] In order to make up for the deficiency of potential safety hazards when a traditional press is used to measure material properties, the utility model provides a high-pressure press for measuring material properties.

[0005] The technical solution of the utility model is:

[0006] A high pressure press for measuring material properties, comprising:

[0007] A press, the press comprising a base, a top plate is arranged above the base through a column, a pressure cylinder is arranged above the top plate, and a piston rod of the pressure cylinder penetrates the top plate and is connected to the pressure plate;

[0008] A protection device, the protection device is located above the base, the protection device comprises a protection plate, a protection door is rotatably mounted on the front side of the protection plate through a rotating device, the protection door is used to place the test material when it is opened, and is used to prevent the material from splashing when it is closed;

[0009] The driving device includes an extrusion box, which is located on the left and right sides of the protection plate and above the rotating device. The extrusion box is connected to the pressure plate through an adjusting device, and the adjusting device is used to adjust the distance from the extrusion box to the rotating device. The extrusion box can move with the pressure plate.

[0010] Preferably, an observation window is provided in the center of the protection door, and sliding grooves are provided on the left and right sides of the protection plate.

[0011] Preferably, the rotating device comprises a rotating arm, and the rotating arm is rotatably mounted on the left and right sides of the protection plate, and the head of the rotating arm is rotatably connected to the protection door via a rotating pin.

[0012] Preferably, a roller is rotatably mounted on the rear of the rotating arm, and the roller abuts against the extrusion box.

[0013] Preferably, a guide groove is provided through the extrusion box on one side close to the protection plate, and the guide groove is opposite to the slide groove.

[0014] Preferably, the adjusting device comprises an adjusting plate, the adjusting plate is located in the extrusion box, a limiting plate is provided on one side of the adjusting plate close to the protective plate, and the limiting plate passes through a guide groove and a slide groove and is fixedly connected to the pressure plate.

[0015] Preferably, an adjusting motor is provided on the top of the extrusion box, and an output shaft of the adjusting motor passes through the top of the extrusion box and is connected with an adjusting screw, and the adjusting screw is rotatably installed in the extrusion box and is threadedly connected to the adjusting plate.

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

[0017] 1. The utility model sets a driving device and uses an adjusting device to connect the extrusion box and the pressure plate, so that the extrusion box can move with the pressure plate. When the pressure plate drops, the extrusion box presses the rotating arm downward, and the rotating arm rotates to drive the protection door to move upward, so that the protection door is closed. When the pressure plate rises, the extrusion box moves upward, and the protection door moves downward under the action of its own weight, so that the protection door is automatically opened, thereby improving the experimental efficiency and avoiding safety hazards.

[0018] 2. The utility model sets an adjusting motor and uses the adjusting motor to drive the adjusting screw to rotate, thereby driving the extrusion box to move up and down relative to the adjusting plate, so as to adjust the distance from the bottom of the extrusion box to the roller, so that when the pressure plate moves, the rotating arm will not rotate, thereby realizing the distance adjustment between the pressure plate and the base to meet the experiment of materials of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the protective door in the utility model in a closed state;

[0020] Figure 2 This is a schematic diagram of the structure of the protection door in the utility model in the open state;

[0021] Figure 3 This is a schematic diagram of the structure of the protection device in the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the driving device in the utility model.

[0023] The meaning of each number in the figure is:

[0024] 1. Press; 11. Base; 12. Pressure block; 13. Column; 14. Top plate; 15. Pressure cylinder; 16. Pressure plate; 17. Guide ring; 18. Pressure block;

[0025] 2. Protective device; 21. Protective plate; 22. Slide; 23. Protective door; 24. Observation window; 25. Rotating pin; 26. Rotating arm; 27. Roller;

[0026] 3. Driving device; 31. Extrusion box; 32. Guide groove; 33. Adjustment plate; 34. Limit plate; 35. Adjustment screw; 36. Adjustment motor. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] Embodiment 1:

[0030] See also Figure 1-4 The utility model describes the above technical solution in detail through the following embodiments:

[0031] A high pressure press for measuring material properties, comprising:

[0032] The press machine 1 comprises a base 11 , a top plate 14 is arranged above the base 11 through a column 13 , a pressure cylinder 15 is arranged above the top plate 14 , and a piston rod of the pressure cylinder 15 penetrates through the top plate 14 and is connected to a pressure plate 16 .

[0033] A pressure block 12 is fixedly installed above the base 11 and between the columns 13 by bolts. The pressure block 12 is used to place the material to be measured or install a fixture for clamping the material. There are four columns 13, and the four columns 13 are evenly fixedly installed on the base 11 by bolts. The top plate 14 is fixedly installed on the top of the column 13 by bolts.

[0034] The pressure oil cylinder 15 is fixedly installed in the middle of the top surface of the top plate 14 by bolts. The piston rod of the pressure oil cylinder 15 penetrates the top plate 14 and is fixedly connected to the pressure plate 16 by bolts. The axis of the piston rod of the pressure oil cylinder 15 penetrates the geometric center of the pressure plate 16. A guide ring 17 is welded on the edge of the pressure plate 16. The guide ring 17 is sleeved on the outside of the column 13 and can slide along the column 13. A pressure block 18 is fixedly installed in the center of the bottom surface of the pressure plate 16 by bolts. The pressure block 18 is used to contact the top surface of the material.

[0035] By controlling the piston rod of the pressure oil cylinder 15 to extend or retract, the pressure plate 16 can be driven to descend or ascend, thereby driving the pressure block 18 to descend or ascend, thereby achieving the squeezing or release of the material.

[0036] The protective device 2 is located above the base 11 and includes a protective plate 21. A protective door 23 is rotatably mounted on the front side of the protective plate 21 through a rotating device. The protective door 23 is used to place test materials when it is opened and to prevent materials from splashing when it is closed.

[0037] The protection plate 21 is fixedly installed between the top plate 14 and the base 11 by means of bolts, and the protection plate 21 surrounds the column 13 .

[0038] An observation window 24 is provided in the center of the protection door 23 , and sliding grooves 22 are provided on the left and right sides of the protection plate 21 .

[0039] The observation window 24 is made of double-layer laminated organic glass, so that the experimenter can observe the extrusion of the material inside the protective device 2.

[0040] The rotating device includes a rotating arm 26, which is rotatably mounted on the left and right sides of the protection plate 21, and the head of the rotating arm 26 is rotatably connected to the protection door 23 through a rotating pin 25. A roller 27 is rotatably mounted on the tail of the rotating arm 26, and the roller 27 abuts against the extrusion box 31.

[0041] The middle part of the rotating arm 26 is rotatably mounted on the left and right sides of the protection plate 21 by bolts. The rotating pin 25 is welded and mounted on the front side of the protection door 23 and is located at the upper 1 / 4 of the protection door 23. When the rotating arm 26 rotates, since the rotating pin 25 is rotatably connected to the head of the rotating arm 26, the protection door 23 rotates with the rotating arm 26. Since the rotating pin 25 is located at the upper 1 / 4 of the protection door 23, the center of gravity of the protection door 23 is located below the line connecting the rotating pins 25, and the protection door 23 remains in a vertical state.

[0042] The driving device 3 includes a squeeze box 31, which is located on the left and right sides of the protection plate 21 and above the rotating device. The squeeze box 31 is connected to the pressure plate 16 through an adjusting device, and the adjusting device is used to adjust the distance between the squeeze box 31 and the rotating device. The squeeze box 31 can move with the pressure plate 16. A guide groove 32 is provided through the squeeze box 31 near the protection plate 21, and the guide groove 32 is opposite to the slide groove 22.

[0043] When the squeeze box 31 moves downward following the pressure plate 16, the bottom of the squeeze box 31 abuts against the roller 27, so that the squeeze box 31 can squeeze the roller 27 downward, thereby driving the tail of the rotating arm 26 to rotate downward. When the squeeze box 31 moves upward following the pressure plate 16, under the action of the self-weight of the protection door 23, the roller 27 abuts against the bottom of the squeeze box 31, and the tail of the rotating arm 26 rotates upward following the squeeze box 31.

[0044] The adjusting device includes an adjusting plate 33 , which is located in the extrusion box 31 . A limiting plate 34 is provided on one side of the adjusting plate 33 close to the protection plate 21 . The limiting plate 34 passes through the guide groove 32 and the slide groove 22 and is fixedly connected to the pressure plate 16 .

[0045] The head of the limit plate 34 is fixedly connected to the pressure plate 16 by bolts, and the adjusting plate 33 is welded to the tail of the limit plate 34. The adjusting plate 33 can slide up and down in the extrusion box 31, and the limit plate 34 can slide up and down along the guide groove 32 and the slide groove 22.

[0046] An adjusting motor 36 is provided on the top of the extrusion box 31 . The output shaft of the adjusting motor 36 passes through the top of the extrusion box 31 and is connected to an adjusting screw 35 . The adjusting screw 35 is rotatably installed in the extrusion box 31 and is threadedly connected to the adjusting plate 33 .

[0047] The adjusting motor 36 is fixedly installed on the top of the extrusion box 31 by bolts. The adjusting motor 36 adopts a servo motor. When the adjusting motor 36 is started, it can drive the adjusting screw 35 to rotate. Since the adjusting screw 35 is threadedly connected to the adjusting plate 33 and the adjusting plate 33 is fixedly connected to the pressure plate 16 through the limit plate 34, when the adjusting screw 35 rotates, the extrusion box 31 and the adjusting screw 35 will move up and down relative to the adjusting plate 33.

[0048] When the operator of this embodiment uses the device, he controls the piston rod of the pressure cylinder 15 to retract and drives the pressure plate 16 to move upward to the top. At this time, the driving device 3 moves upward with the pressure plate 16, the roller 27 is separated from the extrusion box 31, and the protective door 23 is at the lowest position.

[0049] Put the material from the front opening of the protection plate 21 to the top surface of the pressure block 12, then control the piston rod of the pressure cylinder 15 to extend, drive the pressure plate 16 to move to a suitable position, start the adjustment motor 36, drive the adjustment screw 35 to rotate, and drive the extrusion box 31 to move up and down until the bottom of the extrusion box 31 abuts against the roller 27. Stop the adjustment motor 36.

[0050] The piston rod of the control pressure oil cylinder 15 is extended, driving the pressure plate 16 to move downward, thereby driving the adjustment plate 33 to move downward through the limit plate 34, and then driving the extrusion box 31 to move downward through the adjustment screw 35. The downward movement of the extrusion box 31 will squeeze the roller 27 downward, and the roller 27 drives the tail end of the rotating arm 26 to rotate downward, thereby driving the head of the rotating arm 26 to rotate upward. When the rotating arm 26 rotates, since the rotating pin 25 is rotatably connected to the head of the rotating arm 26, the protection door 23 rotates with the rotating arm 26. Since the rotating pin 25 is located at the upper 1 / 4 of the protection door 23, the center of gravity of the protection door 23 is located below the line connecting the rotating pins 25, and the protection door 23 remains in a vertical state.

[0051] When the protection door 23 abuts against the front opening of the protection plate 21, the roller 27 is lower than the rotating pin 25 and abuts against the side of the extrusion box 31. At this time, the pressure plate 16 continues to move downward, the pressure block 18 abuts against the material, applies pressure to the top surface of the material, and cooperates with the pressure block 12 to squeeze the material until the material is broken, thereby achieving the measurement of the compressive strength of the material.

[0052] Embodiment 2: The difference from Embodiment 1 is that

[0053] See also Figure 1 , Figure 2 and 4 If the shear strength of the material is to be measured, it is necessary to first control the extension of the piston rod of the pressure cylinder 15 to drive the pressure plate 16 to drive the pressure block 18 to move downward until the pressure block 18 is in contact with the pressure block 12, and then start the adjustment motor 36 to drive the adjustment screw 35 to rotate, thereby driving the extrusion box 31 to move upward until the bottom of the extrusion box 31 is separated from the roller 27.

[0054] At this time, the protection door 23 is located at the lowest position, and the roller 27 is higher than the rotating pin 25.

[0055] Then the piston rod of the pressure oil cylinder 15 is controlled to be retracted, and the pressure plate 16 is driven to drive the pressure block 18 to move upward until the gap between the pressure block 18 and the pressure bearing block 12 is just large enough to put the material in. The pressure of the pressure oil cylinder 15 is maintained.

[0056] Start the adjustment motor 36, drive the adjustment screw 35 to rotate, thereby drive the squeeze box 31 to move downward, the squeeze box 31 moves downward to squeeze the roller 27 downward, the roller 27 drives the tail end of the rotating arm 26 to rotate downward, thereby driving the head of the rotating arm 26 to rotate upward, when the rotating arm 26 rotates, since the rotating pin 25 is rotatably connected to the head of the rotating arm 26, the protection door 23 rotates with the rotating arm 26, and since the rotating pin 25 is located at the upper 1 / 4 of the protection door 23, the center of gravity of the protection door 23 is located below the line connecting the rotating pin 25, and the protection door 23 remains in a vertical state. Until the protection door 23 abuts against the front opening of the protection plate 21, stop the adjustment motor 36.

[0057] The piston rod of the pressure oil cylinder 15 is controlled to extend, and the pressure plate 16 is driven to drive the pressure block 18 to move downward, thereby squeezing the material and realizing the measurement of the shear strength of the material.

[0058] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A high pressure press for measuring material properties, characterized in that: include: A press (1), the press (1) comprising a base (11), a top plate (14) being arranged above the base (11) via a column (13), a pressure oil cylinder (15) being arranged above the top plate (14), a piston rod of the pressure oil cylinder (15) penetrating the top plate (14) and connected to a pressure plate (16); A protective device (2), the protective device (2) being located above the base (11), the protective device (2) comprising a protective plate (21), a protective door (23) being rotatably mounted on the front side of the protective plate (21) via a rotating device, the protective door (23) being used to place test materials when opened, and being used to prevent materials from splashing when closed; A driving device (3), the driving device (3) comprising an extrusion box (31), the extrusion box (31) being located on the left and right sides of the protection plate (21) and above the rotating device, the extrusion box (31) being connected to the pressure plate (16) via an adjusting device, the adjusting device being used to adjust the distance between the extrusion box (31) and the rotating device, the extrusion box (31) being able to move following the pressure plate (16).

2. A high pressure press for measuring material properties as claimed in claim 1, characterized in that: An observation window (24) is provided at the center of the protection door (23), and sliding grooves (22) are provided on the left and right sides of the protection plate (21).

3. A high pressure press for measuring material properties as claimed in claim 2, characterized in that: The rotating device comprises a rotating arm (26), the rotating arm (26) is rotatably mounted on the left and right sides of the protection plate (21), and the head of the rotating arm (26) is rotatably connected to the protection door (23) via a rotating pin (25).

4. A high pressure press for measuring material properties as claimed in claim 3, characterized in that: A roller (27) is rotatably mounted on the rear end of the rotating arm (26), and the roller (27) abuts against the squeezing box (31).

5. A high pressure press for measuring material properties as claimed in claim 4, characterized in that: A guide groove (32) is provided through the extrusion box (31) on one side close to the protection plate (21), and the guide groove (32) is opposite to the slide groove (22).

6. A high pressure press for measuring material properties as claimed in claim 5, characterized in that: The adjusting device comprises an adjusting plate (33), wherein the adjusting plate (33) is located in the extrusion box (31), and a limiting plate (34) is provided on the side of the adjusting plate (33) close to the protection plate (21), and the limiting plate (34) passes through the guide groove (32) and the slide groove (22) and is fixedly connected to the pressure plate (16).

7. A high pressure press for measuring material properties as claimed in claim 6, characterized in that: An adjusting motor (36) is provided at the top of the extrusion box (31); an output shaft of the adjusting motor (36) passes through the top of the extrusion box (31) and is connected to an adjusting screw (35); the adjusting screw (35) is rotatably installed in the extrusion box (31) and is threadedly connected to the adjusting plate (33).

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