Universal plasticity testing machine

Abstract

The utility model discloses a universal plasticity testing machine which comprises a base, a hydraulic machine and a control panel, the hydraulic machine is arranged on the base, the control panel is arranged on the base on the right side of the hydraulic machine, two groups of mounting plates are symmetrically arranged on the surface of the front end of the hydraulic machine and the base, and clamps are arranged on the mounting plates. And limiting grooves are formed in the mounting plates. The limiting groove, the movable bin, the guide rods, the sliding blocks, the springs, the inserting blocks and the inserting grooves are formed between the mounting plate and the clamp, the two sets of sliding blocks are driven to slide on the guide rods through the restoring force of the springs, the sliding blocks drive the inserting blocks to be inserted into the inserting grooves, the purpose of assembling the clamp can be achieved, and then the sliding blocks drive the inserting blocks to slide out of the inserting grooves; therefore, the purpose of dismounting the clamp can be achieved, and the problem that the difficulty of bolt connection between the mounting plate and the clamp is high, so that the clamp is inconvenient to dismount or replace is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing machines, in particular to a universal plasticity testing machine. Background Art

[0002] With the advancement of science and technology and the continuous development of industrial manufacturing, the testing and evaluation of various material properties has become increasingly important. As an important mechanical properties testing equipment, the universal plasticity testing machine is widely used in plastics, rubber, metals, building materials and other fields, providing key technical support for material quality control, performance research and product development. The universal plasticity testing machine, also known as the universal material testing machine or universal testing machine, is a general-purpose testing equipment that can test the properties of various materials, including metals, plastics, rubber, paper, fabrics, etc. This equipment is mainly used for performance testing of materials under tension, compression, bending, shearing and other conditions, and can measure key indicators such as strength, elongation, elongation at break, compressive strength, strain, bending modulus, etc. The existing universal plasticity testing machine can basically meet the daily use needs, but there are still some shortcomings that need to be improved.

[0003] The existing clamps are usually fixed to the mounting plate with bolts. When the bolts are too tight, due to the long-term action of mechanical force and electromagnetic force, the bolts may produce metal fatigue, shearing or thread stripping, etc., resulting in loose assembly between the mounting plate and the clamp, which may cause accidents. Therefore, the difficulty of bolt connection is relatively high, which makes it inconvenient to disassemble or replace the clamp. For this reason, we propose a universal plasticity testing machine to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a universal plasticity testing machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a universal plasticity testing machine, comprising a base, a hydraulic press and a control panel, wherein a hydraulic press is arranged on the base, a control panel is arranged on the base on the right side of the hydraulic press, two groups of mounting plates are symmetrically arranged on the front end surface of the hydraulic press and the base, clamps are arranged on the mounting plates, limiting grooves are arranged in the mounting plates, clamps are slid in the limiting grooves, movable bins are arranged on the surfaces of the mounting plates at the front ends of the clamps, guide rods are arranged on the inner walls of the movable bins, two groups of sliders are slidably connected to the guide rods, springs are wound on the surfaces of the guide rods in the middle of the two groups of sliders, both ends of the springs are fixedly connected to the outer walls of the two groups of sliders, plug blocks are arranged on the rear end surfaces of the sliders, and slots are arranged on the surfaces of the clamps corresponding to the outer ends of the plug blocks.

[0006] As a further preferred embodiment of the present technical solution, a fixed frame is provided on the base surface on the left side of the mounting plate, a bearing is provided on the inner wall of the fixed frame, a screw rod is fixedly connected to the bearing, a handwheel is provided on the top surface of the screw rod, a transmission block is threadedly connected to the screw rod, a connecting bracket is provided on the right side of the transmission block, and a protective cover is provided on the right side of the connecting bracket.

[0007] As a further preferred embodiment of the present technical solution, a handle is provided on the surface of the sliding block on one side facing away from the insert block, and the handle is designed in a U-shaped shape.

[0008] As a further preferred embodiment of the present technical solution, the slider is designed to be rectangular, a through hole adapted to the slider is provided inside the movable compartment, and a groove matched to the guide rod is provided inside the slider.

[0009] As a further preferred embodiment of the present technical solution, the protective cover is designed to be transparent and is made of a transparent acrylic plate.

[0010] As a further preferred embodiment of the present technical solution, the handwheel consists of a circular wheel and a central handle, and the handle of the handwheel is provided with anti-slip textures.

[0011] As a further preferred embodiment of the present technical solution, a ball bearing is arranged between the surface of the transmission block and the inner wall of the fixed frame, and the ball bearing is built into the transmission block.

[0012] The utility model provides a universal plasticity testing machine, which has the following beneficial effects:

[0013] 1. The utility model arranges a limit groove, a movable bin, a guide rod, a slider, a spring, an insert block and a slot between the mounting plate and the clamp. By utilizing the restoring force of the spring to drive two sets of sliders to slide on the guide rod, and the slider drives the insert block to be inserted into the slot, the purpose of assembling the clamp can be achieved. Then, the slider drives the insert block to slide out of the slot to achieve the purpose of disassembling the clamp, which effectively solves the problem of high difficulty in bolt connection between the mounting plate and the clamp, which makes it inconvenient to disassemble or replace the clamp.

[0014] 2. The utility model sets a liftable protective cover on the outside of the mounting plate, so that the hand wheel drives the screw to rotate on the bearing, and the screw acts on the transmission block synchronously, so that the transmission block drives the protective cover to be lifted and lowered through the connecting bracket, so that the protective cover protects the material in the fixture and prevents the material splashing out during the test from injuring the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2It is a schematic diagram of the first partial cross-sectional structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the second partial cross-sectional structure of the utility model;

[0018] Figure 4 For the utility model Figure 2 A is an enlarged structural diagram of FIG.

[0019] In the figure: 1. base; 2. hydraulic press; 3. control panel; 4. mounting plate; 5. clamp; 6. limit groove; 7. movable bin; 8. guide rod; 9. slide block; 10. spring; 11. plug block; 12. slot; 13. handle; 14. fixing frame; 15. bearing; 16. screw rod; 17. hand wheel; 18. transmission block; 19. connecting bracket; 20. protective cover. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figures 1 to 4 As shown, in this embodiment, a universal plasticity testing machine includes a base 1, a hydraulic press 2 and a control panel 3. The base 1 is provided with a hydraulic press 2, and the base 1 on the right side of the hydraulic press 2 is provided with a control panel 3. Two groups of mounting plates 4 are symmetrically arranged on the front end surface of the hydraulic press 2 and the base 1, and clamps 5 are arranged on the mounting plates 4. Limiting grooves 6 are arranged in the mounting plates 4, and clamps 5 are slid in the limiting grooves 6. A movable bin 7 is arranged on the surface of the mounting plate 4 at the front end of the clamp 5, and a guide rod 8 is arranged on the inner wall of the movable bin 7. Two groups of sliders 9 are slidably connected to the guide rod 8. Springs 10 are wound on the surface of the guide rod 8 in the middle of the two groups of sliders 9, and both ends of the spring 10 are fixedly connected to the outer walls of the two groups of sliders 9. Insert blocks 11 are arranged on the rear end surfaces of the sliders 9, and slots 12 are arranged on the surfaces of the clamps 5 corresponding to the outer ends of the insert blocks 11.

[0022] By setting the limit groove 6, movable bin 7, guide rod 8, slider 9, spring 10, plug block 11 and slot 12 between the mounting plate 4 and the clamp 5, the restoring force of the spring 10 is utilized to drive the two sets of sliders 9 to slide on the guide rod 8, and the slider 9 drives the plug block 11 to be inserted into the slot 12, so as to achieve the purpose of assembling the clamp 5, and then the slider 9 drives the plug block 11 to slide out of the slot 12, so as to achieve the purpose of disassembling the clamp 5, which effectively solves the problem of high difficulty in bolt connection between the mounting plate 4 and the clamp 5, resulting in inconvenience in disassembling or replacing the clamp 5.

[0023] In other embodiments, a fixing frame 14 is provided on the surface of the base 1 on the left side of the mounting plate 4, a bearing 15 is provided on the inner wall of the fixing frame 14, a screw rod 16 is fixedly connected to the bearing 15, a hand wheel 17 is provided on the top surface of the screw rod 16, a transmission block 18 is threadedly connected to the screw rod 16, a connecting bracket 19 is provided on the right side of the transmission block 18, and a protective cover 20 is provided on the right side of the connecting bracket 19;

[0024] By arranging a liftable protective cover 20 on the outside of the mounting plate 4, the handwheel 17 drives the screw rod 16 to rotate on the bearing 15, and the screw rod 16 acts on the transmission block 18 synchronously, so that the transmission block 18 drives the protective cover 20 to be lifted and lowered through the connecting bracket 19, so that the protective cover 20 protects the material in the fixture 5 to prevent the material splashing out during the test from injuring the staff.

[0025] In other embodiments, a handle 13 is provided on the surface of the slider 9 facing away from the insert block 11, and the handle 13 is designed in a square shape;

[0026] This design makes it easier for workers to operate the slider 9 and prevents hand slippage, which causes the two sets of sliders 9 to slide down to their original positions under the push of the restoring force of the spring 10, thereby requiring repeated operation of the slider 9.

[0027] In other embodiments, the slider 9 is designed in a rectangular shape, a through hole matching the slider 9 is provided inside the movable compartment 7, and a groove matching the guide rod 8 is provided inside the slider 9;

[0028] This design enables the movable bin 7 to limit the swing of the slider 9 and prevents the slider 9 from loosening during the process of sliding back and forth on the guide rod 8, thereby preventing the insert block 11 from being able to slide into the slot 12.

[0029] In other embodiments, the protective cover 20 is designed to be transparent, and the protective cover 20 is made of a transparent acrylic plate;

[0030] With this design, when the protective cover 20 protects the clamp 5, the staff can directly observe the clamp 5 through the protective cover 20, thereby preventing the material in the clamp 5 from splashing and injuring the staff during the test.

[0031] In other embodiments, the hand wheel 17 is composed of a circular wheel and a central handle, and the handle of the hand wheel 17 is provided with anti-slip textures;

[0032] This design can increase the friction between the palm of the worker and the hand wheel 17 , making it easier for the worker to use the hand wheel 17 .

[0033] In other embodiments, a ball bearing is disposed between the surface of the transmission block 18 and the inner wall of the fixed frame 14 , and the ball bearing is built into the transmission block 18 ;

[0034] With this design, the sliding friction of the transmission block 18 in the fixed frame 14 can be transformed into rolling friction, thereby effectively reducing the damage to the transmission block 18 during the sliding friction in the fixed frame 14 .

[0035] The utility model provides a universal plasticity testing machine, and the specific working principle is as follows:

[0036] When in use, first push the two sets of handles 13 in the direction away from the spring 10, so that the handles 13 drive the slider 9 to slide in the guide rod 8, and the slider 9 stretches the spring 10, and the slider 9 synchronously drives the plug block 11 to move while sliding, and then insert the clamp 5 into the limit groove 6, at this time, the plug block 11 is aligned with the slot 12, and then by loosening the handle 13, the restoring force of the spring 10 is used to drive the two sets of sliders 9 to reset and slide on the guide rod 8, and the plug block 11 is inserted into the slot 12, so as to achieve the purpose of installing the clamp 5, and then the material is clamped by the clamp 5, and then the hydraulic press 2 is used to drive the two sets of clamps 5 to stretch or squeeze the material, and then by turning the hand wheel 17, the hand wheel 17 drives the screw rod 16 to rotate on the bearing 15, and the screw rod 16 acts on the transmission block 18 synchronously, so that the transmission block 18 drives the protective cover 20 to rise and fall through the connecting bracket 19, so that the protective cover 20 protects the material in the clamp 5.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A universal plasticity testing machine, comprising a base (1), a hydraulic press (2) and a control panel (3), wherein the base (1) is provided with the hydraulic press (2), and the base (1) on the right side of the hydraulic press (2) is provided with the control panel (3), characterized in that: Two groups of mounting plates (4) are symmetrically arranged on the front end surface of the hydraulic press (2) and the base (1), and the mounting plates (4) are provided with clamps (5). The mounting plates (4) are provided with limit grooves (6), and the clamps (5) are slidably arranged in the limit grooves (6). The surface of the mounting plates (4) at the front end of the clamps (5) is provided with movable bins (7), and the inner wall of the movable bins (7) is provided with guide rods (8), and the guide rods (8) are slidably connected with two groups of sliders (9). The surfaces of the guide rods (8) in the middle of the two groups of sliders (9) are wound with springs (10), and both ends of the springs (10) are fixedly connected to the outer walls of the two groups of sliders (9). The rear end surfaces of the sliders (9) are provided with plug blocks (11), and the surfaces of the clamps (5) corresponding to the outer ends of the plug blocks (11) are provided with slots (12).

2. A universal plasticity testing machine according to claim 1, characterized in that: A fixing frame (14) is provided on the surface of the base (1) on the left side of the mounting plate (4), a bearing (15) is provided on the inner wall of the fixing frame (14), a screw rod (16) is fixedly connected to the bearing (15), a hand wheel (17) is provided on the top surface of the screw rod (16), a transmission block (18) is threadedly connected to the screw rod (16), a connecting bracket (19) is provided on the right side of the transmission block (18), and a protective cover (20) is provided on the right side of the connecting bracket (19).

3. A universal plasticity testing machine according to claim 1, characterized in that: A handle (13) is provided on the surface of the sliding block (9) on one side facing away from the insert block (11), and the handle (13) is designed in a U-shaped shape.

4. A universal plasticity testing machine according to claim 1, characterized in that: The slide block (9) is designed to be rectangular, a through hole matching the slide block (9) is provided inside the movable bin (7), and a groove matching the guide rod (8) is provided inside the slide block (9).

5. A universal plasticity testing machine according to claim 2, characterized in that: The protective cover (20) is designed to be transparent, and the protective cover (20) is made of a transparent acrylic plate.

6. A universal plasticity testing machine according to claim 2, characterized in that: The hand wheel (17) is composed of a circular wheel and a central handle, and the handle of the hand wheel (17) is provided with anti-slip patterns.

7. A universal plasticity testing machine according to claim 2, characterized in that: A ball bearing is arranged between the surface of the transmission block (18) and the inner wall of the fixed frame (14), and the ball bearing is built into the transmission block (18).

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