Testing machine for new material compression resistance test

Abstract

The invention discloses a testing machine for a new material compression resistance test, and relates to the technical field of compression resistance testing, the testing machine comprises a detection frame, a placing table is fixedly connected to the bottom end in the detection frame, a hydraulic telescopic rod is fixedly connected to the top of the placing table, and the testing machine further comprises a connecting plate arranged at the top end in the detection frame; the telescopic end of the hydraulic telescopic rod is fixedly connected with the connecting plate, a lower pressing plate is arranged at the bottom of the connecting plate, a plurality of connecting rods are fixedly connected between the lower pressing plate and the connecting plate, and the lower pressing plate and the connecting plate are rotationally connected with a lead screw; in order to adjust the size of the downward pressing surface of the new material during downward pressing detection, the sliding plate is pushed by the pushing piece to slide into different fixing frames and is connected and locked with a plurality of downward pressing rings according to needs, so that the size of the downward pressing surface is rapidly adjusted, and manual disassembly is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of compressive testing, and particularly to a testing machine for compressive testing of new materials. Background Art

[0002] New materials refer to structural materials with excellent properties that have been newly developed or are under development and functional materials with special properties. Structural materials mainly utilize their mechanical properties such as strength, toughness, hardness, and elasticity. Such as new ceramic materials, amorphous alloys, metallic glasses, etc. Functional materials mainly utilize the functions and physical effects such as electricity, light, sound, magnetism, and heat that they possess. In recent years, the new materials studied and developed in the world mainly include new metal materials, fine ceramics, optical fibers, and so on.

[0003] A compressive property detection mechanism for new materials disclosed in the patent application with the reference publication number CN201910386503.X, which relates to the technical field of new materials, includes a bottom plate. The upper surface of the bottom plate is fixedly connected to the lower surface of a top plate through two first support plates. The lower surface of the top plate is fixedly connected with two first fixing plates, and the opposite surfaces of the two first fixing plates are respectively fixedly connected to the left and right sides of a driving device. The driving device is respectively engaged with two second gears, and the inner surfaces of the two second gears are both clamped with threaded cylinders. The surface of the threaded cylinder is sleeved with a first bearing, and the first bearing is clamped on the upper surface of a connecting plate. For this compressive property detection mechanism for new materials, through the mutual cooperation among the third support plate, the second bearing, the rotating shaft, the movable rod, the second threaded column, the threaded cap, the second fixing plate, the first clamping plate, and the second clamping plate, the detection result is accurate, avoiding the need for staff to conduct a second detection, which brings convenience to the work of the staff.

[0004] Existing equipment mostly uses a single-size pressing head or a fixed fixture, and cannot flexibly adjust the contact area to match the diverse working conditions requirements (such as local high-pressure testing or uniform load simulation). For example, precision components require a small contact surface for concentrated pressure to simulate the real stress scenario, while a large contact surface is used to evaluate the stability of the material under uniform load. Currently, the solution relies on manual replacement of different-sized fixtures, which is cumbersome and time-consuming, easily leads to test interruption and contact surface positioning errors, and affects the comparability of data.

[0005] Therefore, it is necessary to provide a testing machine for compressive testing of new materials to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a testing machine for compressive testing of new materials to solve the problem of the defects of the existing technology proposed in the above background art.

[0007] Based on the above ideas, the present invention provides the following technical solution: A testing machine for the compressive strength test of a new material, including a detection frame, a placement table is fixedly connected to the bottom end inside the detection frame, and a hydraulic telescopic rod is fixedly connected to the top of the placement table. It further includes:

[0008] A connecting plate is arranged at the top end inside the detection frame, and the telescopic end of the hydraulic telescopic rod is fixedly connected to the connecting plate. A lower pressing plate is arranged at the bottom of the connecting plate. A plurality of connecting rods are fixedly connected between the lower pressing plate and the connecting plate, and a lead screw is rotatably connected between the lower pressing plate and the connecting plate;

[0009] A fixing ring is arranged outside the lower pressing plate. A baffle is fixedly connected to the top of the fixing ring, and a fixing rod is fixedly connected between the fixing ring and the top end inside the detection frame. A plurality of lower pressing rings are arranged between the fixing ring and the lower pressing plate. The radii of the plurality of lower pressing rings are sequentially sleeved outside the lower pressing plate from small to large, and a locking connecting piece is arranged between each of the plurality of lower pressing rings and the fixing ring;

[0010] A plurality of fixing frames are fixedly connected to the top of each of the plurality of lower pressing rings. A sliding plate corresponding to each of the plurality of fixing frames is arranged on the top of the lower pressing plate. A pushing member is arranged outside the lead screw. The pushing member pushes the sliding plate into the fixing frame arranged on the top of the corresponding lower pressing ring to adjust the size of the downward pressing contact area.

[0011] As a further solution of the present invention: The connecting piece includes a plurality of contact blocks. A plurality of empty slots are arranged inside each of the lower pressing rings. The plurality of contact blocks are respectively arranged inside the plurality of empty slots and extend into the fixing frame. The contact blocks are slidably connected to the lower pressing rings. A second rack is fixedly connected to the bottom of the contact block, and a plurality of first springs and first telescopic rods are fixedly connected between the second rack and the lower pressing rings. The first springs are sleeved outside the first telescopic rods.

[0012] As a further solution of the present invention: The connecting piece further includes a first gear, the first gear is meshed with the second rack, and a transmission rod is fixedly connected to the outside of the first gear. The transmission rod is rotatably connected to the lower pressing ring. Second gears are fixedly connected to both ends of the transmission rod. A third rack is meshed with the outside of the second gear. A positioning rod is fixedly connected to one end of the third rack. Positioning grooves corresponding to the plurality of connecting pieces are respectively opened on the inner sides of the lower pressing ring and the fixing ring. The positioning rod is adapted to the positioning groove. Second telescopic rods and second springs are fixedly connected between the second gear and the lower pressing ring, and the second springs are sleeved outside the second telescopic rods.

[0013] As a further solution of the present invention: The pushing member includes a pushing ring sleeved outside the lead screw. The lead screw and the pushing ring are connected by a ball screw pair. The bottom of the lead screw is rotatably connected to a plurality of support rods, and the plurality of support rods are respectively rotatably connected to a plurality of sliding plates. The top of the lower pressing plate is fixedly connected to a plurality of cross plates, and a plurality of third telescopic rods are fixedly connected between the cross plates and one end inside the sliding plates.

[0014] As a further solution of the present invention: A driven gear is fixedly connected to the outside of the lead screw, a driving gear is meshed and connected to the outside of the driven gear, a driving motor is fixedly connected to the top of the connecting plate, and the output shaft of the driving motor is fixedly connected to the driving gear.

[0015] As a further solution of the present invention: A rotating ring is rotatably connected to the outside of the fixed ring. There is an internal gear ring at the top of the rotating ring, and the internal gear ring is fixedly connected to the fixed ring through support rods. Two cleaning members are arranged at the bottom of the rotating ring, and a traction member is arranged between the top of the fixed ring and the rotating ring. Two first racks are fixedly connected between the lower pressing plate and the connecting plate. When the lower pressing plate rises and resets, the rotating ring is driven to rotate through the first rack and the traction member.

[0016] As a further solution of the present invention: The traction member includes two arc-shaped frames. Both arc-shaped frames are fixedly connected to the top of the fixed ring. A sliding block is slidably connected inside the arc-shaped frame. The sliding block passes through the outside of the arc-shaped frame and is fixedly connected to the rotating ring. An elastic member with elasticity is fixedly connected between the sliding block and one end inside the arc-shaped frame.

[0017] As a further solution of the present invention: The traction member further includes two support frames. A third gear is rotatably connected to one end of each of the two support frames. A winding disc is connected to one end of the third gear through a one-way bearing. A traction wire is fixedly connected to the outside of the winding disc. The traction wire passes through one end of the arc-shaped frame and is fixedly connected to the sliding block.

[0018] As a further solution of the present invention: The cleaning member includes a cleaning frame. A rotating rod is fixedly connected to the top of the cleaning frame. The rotating rod passes through the rotating ring and is rotatably connected to the rotating ring. A transmission gear is connected to the outside of the rotating rod through a one-way bearing. The transmission gear is meshed with the internal gear ring. A fixed ring is sleeved on the outside of the rotating rod. A return spring is fixedly connected between the fixed ring and the rotating rod. The fixed ring is fixedly connected to the rotating ring.

[0019] As a further solution of the present invention: The cleaning member further includes a collection tank. The collection tank is threadedly connected to the bottom of the cleaning frame. A through groove is opened at the top of the cleaning frame. A cleaning brush is fixedly arranged at the upper part of the through groove. An inclined plate is arranged inside the cleaning frame.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. Apply pressure to the top of the material through the lower pressing plate to conduct a compressive test on the new material. However, during the compressive test, in order to obtain the contact conditions under different simulated working conditions and verify the adaptability of the material in actual use. For example, a smaller contact surface may be closer to the stress scenario of the material in precision components, while a larger contact surface is suitable for evaluating the stability of the material under uniform load. Therefore, in order to adjust the size of the lower pressing surface of the new material during the downward pressing test, in this solution, a pushing member is used to push the sliding plate into different fixing frames and connect and lock with multiple lower pressing rings as needed, so as to quickly adjust the size of the lower pressing surface and avoid manual disassembly.

[0022] 2. Therefore, in this solution, a cleaning member is arranged at the bottom of the rotating ring. When the lower pressing plate rises, the rotating ring is driven to rotate by the traction member. After the lower pressing plate and the lower pressing ring are reset, the rotating ring will reset and the cleaning member will clean the bottom of the lower pressing plate and the lower pressing ring, so as to ensure the authenticity of the test data.

[0023] 3. When the rotating ring completes the reset, the rotating rod will rotate due to the action of the reset spring, so as to ensure that each cleaning frame is always outside the lower pressing ring and the lower pressing plate. And during the reset process, the lower pressing ring and the lower pressing plate can also be cleaned, so as to achieve automatic cleaning each time, reduce the erosion of residues on the equipment materials, maintain the mechanical precision and functional integrity. At the same time, the automatic cleaning reduces the manual intervention time, avoids the downtime waiting caused by manual wiping, accelerates the detection process, and keeping the contact surface clean can avoid cross-contamination between batches. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the drawings and embodiments.

[0025] Figure 1 is the overall structural schematic diagram of the present invention;

[0026] Figure 2 is the structural schematic diagram of the connecting plate of the present invention;

[0027] Figure 3 is the structural schematic diagram of the fixed ring and the lower pressing plate of the present invention;

[0028] Figure 4 is the structural schematic diagram of the lower pressing ring of the present invention;

[0029] Figure 5 is the structural schematic diagram of the lead screw of the present invention;

[0030] Figure 6 is the present invention Figure 5 magnified structural schematic diagram of part A;

[0031] Figure 7 is the structural schematic diagram of the lower pressing plate of the present invention;

[0032] Figure 8 It is a schematic structural diagram of the rotating ring of the present invention;

[0033] Figure 9 It is a schematic structural diagram of the traction member of the present invention;

[0034] Figure 10 It is a schematic structural diagram of the arc-shaped frame of the present invention;

[0035] Figure 11 It is a schematic cross-sectional structure diagram of the cleaning frame of the present invention.

[0036] In the figure: 1, detection frame; 101, placement table; 2, hydraulic telescopic rod; 201, connecting plate; 202, connecting rod; 3, lower pressing plate; 301, first rack; 401, lower pressing ring; 402, fixed frame; 403, positioning groove; 501, contact block; 502, second rack; 503, first telescopic rod; 504, first spring; 505, transmission rod; 506, first gear; 507, second gear; 508, third rack; 509, positioning rod; 510, second telescopic rod; 511, second spring; 6, fixed ring; 601, fixed rod; 602, baffle; 701, lead screw; 702, pushing ring; 703, support rod; 704, sliding plate; 705, third telescopic rod; 706, cross plate; 707, driven gear; 708, driving gear; 8, rotating ring; 801, internal gear ring; 901, cleaning frame; 902, cleaning brush; 903, inclined plate; 904, collection tank; 905, rotating rod; 906, fixed ring; 907, transmission gear; 10, arc-shaped frame; 1001, sliding block; 1002, elastic member; 1003, traction wire; 1004, support frame; 1005, third gear; 1006, winding disc. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0038] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0039] As Figures 1 to 11 shown, a testing machine for compressive testing of new materials includes the following embodiments:

[0040] Embodiment 1: As Figures 1 to 4As shown in the figure, it includes a detection frame 1. At the bottom end inside the detection frame 1, a placement table 101 is fixedly connected. On the top of the placement table 101, a hydraulic telescopic rod 2 is fixedly connected. It also includes:

[0041] A connecting plate 201 is arranged at the top end inside the detection frame 1, and the telescopic end of the hydraulic telescopic rod 2 is fixedly connected to the connecting plate 201. A lower pressing plate 3 is arranged at the bottom of the connecting plate 201. A plurality of connecting rods 202 are fixedly connected between the lower pressing plate 3 and the connecting plate 201, and a lead screw 701 is rotatably connected between the lower pressing plate 3 and the connecting plate 201;

[0042] A fixing ring 6 is arranged outside the lower pressing plate 3. A baffle 602 is fixedly connected to the top of the fixing ring 6, and a fixing rod 601 is fixedly connected between the fixing ring 6 and the top end inside the detection frame 1. A plurality of lower pressing rings 401 are arranged between the fixing ring 6 and the lower pressing plate 3. The radii of the plurality of lower pressing rings 401 are sleeved on the outside of the lower pressing plate 3 in ascending order from small to large, and locking connectors are arranged between the plurality of lower pressing rings 401 and the fixing ring 6;

[0043] A plurality of fixing frames 402 are fixedly connected to the top of each of the plurality of lower pressing rings 401. A sliding plate 704 corresponding to the plurality of fixing frames 402 one by one is arranged on the top of the lower pressing plate 3. A pushing member is arranged on the outside of the lead screw 701. The pushing member pushes the sliding plate 704 into the fixing frames 402 arranged on the top of the corresponding lower pressing rings 401 to adjust the size of the downward pressing contact area.

[0044] During specific implementation, when performing compressive testing on new materials, the article is placed on the top of the placement table 101. At this time, by starting the hydraulic telescopic rod 2, the telescopic end of the hydraulic telescopic rod 2 pushes the connecting plate 201 to descend. The connecting plate 201 pushes the lower pressing plate 3 to descend through the connecting rods 202, and then applies pressure to the top of the material through the lower pressing plate 3, thereby performing compressive testing on the new material. However, during the compressive testing process, in order to obtain the contact conditions under different working conditions through simulation, such as different pressure distributions or load areas, the adaptability of the material in actual use can be verified. For example, a smaller contact surface may be closer to the stress scenario of the material in precision components, while a larger contact surface is suitable for evaluating the stability of the material under uniform load. Therefore, in order to adjust the size of the downward pressing surface of the new material during downward pressing detection, in this solution, the pushing member pushes the sliding plate 704 into different fixing frames 402 and locks it with the plurality of lower pressing rings 401 as needed, so as to quickly adjust the size of the downward pressing surface and avoid manual disassembly.

[0045] Embodiment 2: As Figures 5 to 6As shown, the connecting member includes a plurality of contact blocks 501. A plurality of empty slots are provided inside the lower pressing ring 401. The plurality of contact blocks 501 are respectively arranged inside the plurality of empty slots and extend into the fixed frame 402. The contact blocks 501 are slidably connected to the lower pressing ring 401. A second rack 502 is fixedly connected to the bottom of the contact block 501. A plurality of first springs 504 and first telescopic rods 503 are fixedly connected between the second rack 502 and the lower pressing ring 401. The first spring 504 is sleeved outside the first telescopic rod 503.

[0046] The connecting member further includes a first gear 506. The first gear 506 is meshed with the second rack 502. A transmission rod 505 is fixedly connected to the outside of the first gear 506. The transmission rod 505 is rotatably connected to the lower pressing ring 401. Second gears 507 are fixedly connected to both ends of the transmission rod 505. A third rack 508 is meshed with the outside of the second gear 507. A positioning rod 509 is fixedly connected to one end of the third rack 508. Positioning slots 403 corresponding to the plurality of connecting members are respectively formed in the lower pressing ring 401 and the inner side of the fixing ring 6. The positioning rod 509 is adapted to the positioning slot 403. A second telescopic rod 510 and a second spring 511 are fixedly connected between the second gear 507 and the lower pressing ring 401. The second spring 511 is sleeved outside the second telescopic rod 510.

[0047] During specific implementation, multiple lower pressing rings 401 are sleeved around the lower pressing plate 3 in sequence, and a plurality of connecting pieces are arranged between the multiple lower pressing rings 401 for locking. In this solution, positioning grooves 403 are provided on the inner sides of both the multiple lower pressing rings 401 and the fixed ring 6. When the connecting piece is used, under the action of the second spring 511 inside the adjacent lower pressing rings 401, the third rack 508 is pushed, and the third rack 508 drives the fixedly connected positioning rod 509 to insert into the positioning groove 403 opened on the outer side of another lower pressing ring 401, thereby ensuring the locking connection between the adjacent lower pressing rings 401. And the contact block 501 at the top of the second rack 502 passes through the top of the lower pressing ring 401 and extends into the fixed frame 402. When the sliding plate 704 is inserted into the corresponding fixed frame 402, the contact block 501 contacts the sliding plate 704, and the sliding plate 704 squeezes the contact block 501 to move downward. At this time, the contact block 501 drives the fixedly connected second rack 502 to descend, and the second rack 502 drives the meshing-connected first gear 506 to rotate. The first gear 506 drives the fixedly connected second gear 507 to rotate through the transmission rod 505. At this time, the second gear 507 drives the meshing-connected third rack 508 to move towards the second rack 502. At this time, the positioning rod 509 at one end of the third rack 508 slides out of the positioning groove 403, so that the adjacent lower pressing rings 401 are separated. And after the sliding plate 704 is inserted into the fixed frame 402, the separated lower pressing rings 401 are connected, so that the lower pressing plate 3 and the multiple lower pressing rings 401 are combined, thereby quickly adjusting the lower pressing contact surface, avoiding frequent manual disassembly. At the same time, when the pressing is completed and the lower pressing plate 3 drives the corresponding lower pressing rings 401 to rise, they contact the baffle 602 at the top of the fixed ring 6. At this time, the lower pressing rings 401 contact the bottom of the baffle 602, and the lower pressing plate 3 no longer rises. And the multiple lower pressing rings 401 remain in a horizontal state. At this time, the sliding plate 704 slides out of the fixed frame 402. At this time, the restriction on the contact block 501 is released, and the first spring 504 compressed at the bottom of the second rack 502 pushes the second rack 502 to rise, thereby enabling the positioning rod 509 to insert into the positioning groove 403 for connection.

[0048] In this embodiment, as Figure 5 and Figure 8 shown, the pushing member includes a pushing ring 702 sleeved outside the lead screw 701. The lead screw 701 is connected to the pushing ring 702 through a ball screw pair, and a plurality of support rods 703 are rotatably connected to the bottom of the lead screw 701. The plurality of support rods 703 are respectively rotatably connected to the plurality of sliding plates 704. A plurality of cross plates 706 are fixedly connected to the top of the lower pressing plate 3, and a plurality of third telescopic rods 705 are fixedly connected between one end inside the cross plates 706 and the sliding plates 704.

[0049] A driven gear 707 is fixedly connected to the outside of the lead screw 701. An active gear 708 is meshed and connected to the outside of the driven gear 707. A driving motor is fixedly connected to the top of the connecting plate 201, and the output shaft of the driving motor is fixedly connected to the active gear 708.

[0050] During specific implementation, when it is necessary to push multiple sliding plates 704 into the fixed frame 402, the output shaft of the driving motor drives the active gear 708 to rotate. The active gear 708 drives the meshed and connected driven gear 707 to rotate. The driven gear 707 drives the fixedly connected lead screw 701 to rotate. At this time, since the lead screw 701 and the pushing ring 702 are connected by a ball screw pair, the pushing ring 702 is driven to descend. When the pushing ring 702 moves multiple support rods 703, the support rods 703 further push multiple sliding plates 704 to move horizontally, so that multiple sliding plates 704 are inserted into the fixed frame 402, ensuring a stable state when connecting multiple pressing rings 401, and facilitating the installation and separation of multiple pressing rings 401.

[0051] Embodiment Three: As Figures 8 to 11 shown, a rotating ring 8 is rotatably connected to the outside of the fixed ring 6. There is an internal gear ring 801 at the top of the rotating ring 8. The internal gear ring 801 is fixedly connected to the fixed ring 6 through support rods. Two cleaning parts are arranged at the bottom of the rotating ring 8. A traction part is arranged between the top of the fixed ring 6 and the rotating ring 8. Two first racks 301 are fixedly connected between the lower pressing plate 3 and the connecting plate 201. When the lower pressing plate 3 rises and resets, the rotating ring 8 is driven to rotate through the first rack 301 and the traction part.

[0052] During specific implementation, during the compressive strength test of new materials, since the new materials include semiconductors, ceramics, graphene, etc., after each compressive test, due to friction, substances of the materials often adhere to the bottom of the lower pressing plate 3 and multiple pressing rings 401. When the next test is carried out, when the substances carried on the bottom of the pressing ring 401 and the lower pressing plate 3 come into contact with the material, impurities and dust will hinder the uniform contact between the material and the test fixture, resulting in local stress concentration or uneven distribution, and making the measured compressive strength deviate from the true value. For example, dust particles may form small gaps, preventing the pressure from being evenly transmitted and increasing data volatility. Therefore, in this solution, cleaning parts are arranged at the bottom of the rotating ring 8. When the lower pressing plate 3 rises, the rotating ring 8 is driven to rotate through the traction part. After the lower pressing plate 3 and the pressing ring 401 are reset, the rotating ring 8 will reset and clean the bottom of the lower pressing plate 3 and the pressing ring 401 through the cleaning parts, thereby ensuring the authenticity of the test data.

[0053] In this embodiment, the traction member includes two arc-shaped frames 10. Both of the two arc-shaped frames 10 are fixedly connected to the top of the fixed ring 6. A sliding block 1001 is slidably connected inside the arc-shaped frame 10. The sliding block 1001 passes through the outside of the arc-shaped frame 10 and is fixedly connected to the rotating ring 8. An elastic member 1002 with elasticity is fixedly connected between the sliding block 1001 and one end inside the arc-shaped frame 10.

[0054] The traction member further includes two support frames 1004. A third gear 1005 is rotatably connected to one end of each of the two support frames 1004. A winding disc 1006 is connected to one end of the third gear 1005 through a one-way bearing. A traction wire 1003 is fixedly connected to the outside of the winding disc 1006. The traction wire 1003 passes through one end of the arc-shaped frame 10 and is fixedly connected to the sliding block 1001.

[0055] The cleaning member includes a cleaning frame 901. A rotating rod 905 is fixedly connected to the top of the cleaning frame 901. The rotating rod 905 passes through the rotating ring 8 and is rotatably connected to the rotating ring 8. A transmission gear 907 is connected to the outside of the rotating rod 905 through a one-way bearing. The transmission gear 907 is meshed with the internal gear ring 801. A fixing ring 906 is sleeved on the outside of the rotating rod 905. A return spring is fixedly connected between the fixing ring 906 and the rotating rod 905. The fixing ring 906 is fixedly connected to the rotating ring 8.

[0056] During specific implementation, when the connecting plate 201 pushes the lower pressing plate 3 down through the connecting rod 202 and the first rack 301, the first rack 301 meshes with the third gear 1005. However, since the third gear 1005 is connected to the winding disc 1006 through a one-way bearing, the winding disc 1006 will not rotate at this time. When each detection is completed and the first rack 301 meshes with the third gear 1005, due to the damping effect of the one-way bearing, the third gear 1005 drives the fixedly connected winding disc 1006 to rotate. At this time, the winding disc 1006 drives the traction wire 1003 outside to wind. The traction wire 1003 pulls the sliding block 1001 inside the arc-shaped frame 10, so that the sliding block 1001 drives the rotating ring 8 to rotate and compresses the elastic member 1002. When the lower pressing plate 3 and the lower pressing ring 401 are completely reset, the first rack 301 is disengaged from the third gear 1005. At this time, the elastic member 1002 pushes the sliding block 1001 to reset, and the rotating ring 8 rotates rapidly. The cleaning member at the bottom of the rotating ring 8 quickly cleans the bottom of the lower pressing plate 3 and the lower pressing ring 401;

[0057] Moreover, in this solution, to avoid any impact caused by the cleaning member at the bottom of the rotating ring 8 during the reset process of the lower pressing plate 3, the rotating rod 905 in the cleaning member is connected to the transmission gear 907 through a one-way damping bearing. When the lower pressing plate 3 rises, the rotating ring 8 drives the rotating rod 905 to rotate. At the same time, due to the one-way bearing between the transmission gear 907 and the rotating rod 905, the transmission gear 907 and the internal gear ring 801 will not drive the rotating rod 905 to rotate due to meshing. After the lower pressing plate 3 and the lower pressing ring 401 are reset, the rotating ring 8 rotates to make the transmission gear 907 mesh with the internal gear ring 801, driving the rotating rod 905 to rotate. When the rotating rod 905 rotates, it drives the cleaning frame 901 to rotate. The cleaning brush 902 provided on the cleaning frame 901 sweeps the bottom of the lower pressing plate 3 and the lower pressing ring 401, and collects the dust into the interior of the cleaning frame 901. At the same time, to prevent the cleaning frame 901 from affecting the descent of the lower pressing plate 3 and the lower pressing ring 401, a reset spring is fixedly connected between the fixing ring 906 and the rotating rod 905. When the rotating rod 905 rotates, the reset spring is compressed. After the rotating ring 8 is reset, the rotating rod 905 will rotate due to the action of the reset spring, ensuring that each time the cleaning frame 901 is located outside the lower pressing ring 401 and the lower pressing plate 3. And during the reset process, it can also clean the lower pressing ring 401 and the lower pressing plate 3, thereby achieving automatic cleaning each time to reduce the erosion of residues on the equipment materials, maintain the mechanical accuracy and functional integrity. At the same time, the automatic cleaning reduces the manual intervention time, avoids the downtime waiting caused by manual wiping, accelerates the detection process, and keeps the contact surface clean to avoid cross-contamination between batches.

[0058] In this embodiment, the cleaning member further includes a collection tank 904. The collection tank 904 is threadedly connected to the bottom of the cleaning frame 901. A through groove is formed at the top of the cleaning frame 901, and a cleaning brush 902 is fixedly provided at the upper part of the through groove. And an inclined plate 903 is arranged inside the cleaning frame 901.

[0059] During specific implementation, after the impurities fall into the interior of the cleaning frame 901, they fall into the interior of the collection tank 904 through the inclined plate 903 and are collected by the collection tank 904.

[0060] At the same time, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0061] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0062] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A testing machine for compressive testing of a new material, comprising a detection frame (1), wherein a placement table (101) is fixedly connected to the inner bottom end of the detection frame (1), and a hydraulic telescopic rod (2) is fixedly connected to the top of the placement table (101), characterized in that, It further includes: A connecting plate (201), which is arranged at the inner top of the detection frame (1). The telescopic end of the hydraulic telescopic rod (2) is fixedly connected to the connecting plate (201). A lower pressing plate (3) is arranged at the bottom of the connecting plate (201). A plurality of connecting rods (202) are fixedly connected between the lower pressing plate (3) and the connecting plate (201). And a lead screw (701) is rotatably connected between the lower pressing plate (3) and the connecting plate (201). A fixing ring (6), which is arranged outside the lower pressing plate (3). A baffle (602) is fixedly connected to the top of the fixing ring (6). And a fixing rod (601) is fixedly connected between the fixing ring (6) and the inner top of the detection frame (1). A plurality of lower pressing rings (401) are arranged between the fixing ring (6) and the lower pressing plate (3). The radii of the plurality of lower pressing rings (401) are sleeved on the outside of the lower pressing plate (3) in ascending order. And a locking connecting piece is arranged between each of the plurality of lower pressing rings (401) and the fixing ring (6). A plurality of fixing frames (402) are fixedly connected to the top of each of the plurality of lower pressing rings (401). A sliding plate (704) corresponding to each of the plurality of fixing frames (402) is arranged on the top of the lower pressing plate (3). A pushing piece is arranged on the outside of the lead screw (701). The pushing piece pushes the sliding plate (704) into the fixing frame (402) arranged on the top of the corresponding lower pressing ring (401) to adjust the size of the downward pressing contact area.

2. The testing machine for compressive strength test of a new material according to claim 1, characterized in that: The connecting piece includes a plurality of contact blocks (501). A plurality of empty slots are arranged inside each of the lower pressing rings (401). The plurality of contact blocks (501) are respectively arranged inside the plurality of empty slots and extend into the fixing frame (402). And the contact blocks (501) are slidably connected to the lower pressing rings (401). A second rack (502) is fixedly connected to the bottom of the contact blocks (501). And a plurality of first springs (504) and first telescopic rods (503) are fixedly connected between the second rack (502) and the lower pressing rings (401). The first springs (504) are sleeved on the outside of the first telescopic rods (503).

3. The testing machine for compressive strength test of a new material according to claim 2, characterized in that: The connecting piece further includes a first gear (506), which is meshed with the second rack (502). A transmission rod (505) is fixedly connected to the outside of the first gear (506). The transmission rod (505) is rotatably connected to the lower pressing ring (401). Second gears (507) are fixedly connected to both ends of the transmission rod (505). A third rack (508) is meshed with the outside of the second gears (507). A positioning rod (509) is fixedly connected to one end of the third rack (508). Positioning grooves (403) corresponding to the plurality of connecting pieces are respectively formed on the inner sides of the lower pressing rings (401) and the fixing ring (6). The positioning rod (509) is adapted to the positioning groove (403). Second telescopic rods (510) and second springs (511) are fixedly connected between the second gears (507) and the lower pressing rings (401). And the second springs (511) are sleeved on the outside of the second telescopic rods (510).

4. The testing machine for compressive strength testing of a new material according to claim 1, wherein: The pusher includes a pusher ring (702) sleeved outside the lead screw (701). The lead screw (701) is connected to the pusher ring (702) through a ball nut pair. A plurality of support rods (703) are rotatably connected to the bottom of the lead screw (701), and the plurality of support rods (703) are respectively rotatably connected to a plurality of sliding plates (704). A plurality of cross plates (706) are fixedly connected to the top of the lower pressing plate (3), and a plurality of third telescopic rods (705) are fixedly connected between the cross plates (706) and one end inside the sliding plates (704).

5. The testing machine for compressive strength test of a new material according to claim 4, characterized in that: A driven gear (707) is fixedly connected to the outside of the lead screw (701). A driving gear (708) is meshed with the outside of the driven gear (707). A driving motor is fixedly connected to the top of the connecting plate (201), and the output shaft of the driving motor is fixedly connected to the driving gear (708).

6. The testing machine for compressive strength test of a new material according to claim 5, wherein: A rotating ring (8) is rotatably connected to the outside of the fixed ring (6). An internal gear ring (801) is provided at the top of the rotating ring (8). The internal gear ring (801) is fixedly connected to the fixed ring (6) through a support rod. Two cleaning members are provided at the bottom of the rotating ring (8). A traction member is provided between the top of the fixed ring (6) and the rotating ring (8). Two first racks (301) are fixedly connected between the lower pressing plate (3) and the connecting plate (201). When the lower pressing plate (3) rises and resets, the rotating ring (8) is driven to rotate through the traction member by the first rack (301).

7. The testing machine for compressive testing of a new material according to claim 6, wherein: The traction member includes two arc-shaped frames (10). Both of the two arc-shaped frames (10) are fixedly connected to the top of the fixed ring (6). A sliding block (1001) is slidably connected inside the arc-shaped frame (10). The sliding block (1001) passes through the outside of the arc-shaped frame (10) and is fixedly connected to the rotating ring (8). An elastic member (1002) with elasticity is fixedly connected between the sliding block (1001) and one end inside the arc-shaped frame (10).

8. A testing machine for compressive testing of a new material according to claim 6, characterized in that: The traction member further includes two support frames (1004). A third gear (1005) is rotatably connected to one end of each of the two support frames (1004). A winding disc (1006) is connected to one end of the third gear (1005) through a one-way bearing. A traction wire (1003) is fixedly connected to the outside of the winding disc (1006). The traction wire (1003) passes through one end of the arc-shaped frame (10) and is fixedly connected to the sliding block (1001).

9. The testing machine for compressive strength test of a new material according to claim 6, characterized in that: The cleaning member includes a cleaning frame (901). A rotating rod (905) is fixedly connected to the top of the cleaning frame (901). The rotating rod (905) penetrates through the rotating ring (8) and is rotatably connected to the rotating ring (8). A transmission gear (907) is connected to the outside of the rotating rod (905) through a one-way bearing. The transmission gear (907) is meshed with the internal gear ring (801). A fixing ring (906) is sleeved outside the rotating rod (905). A return spring is fixedly connected between the fixing ring (906) and the rotating rod (905). The fixing ring (906) is fixedly connected to the rotating ring (8).

10. The testing machine for compressive testing of a new material according to claim 9, characterized in that: The cleaning member further includes a collection tank (904), the collection tank (904) is threadedly connected to the bottom of the cleaning frame (901), a through groove is formed at the top of the cleaning frame (901), a cleaning brush (902) is fixedly arranged at the upper part of the through groove, and an inclined plate (903) is arranged inside the cleaning frame (901).

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