CN209961618U

CN209961618U - Low-temperature embrittlement performance testing machine

Info

Publication number: CN209961618U
Application number: CN201920775445.5U
Authority: CN
Inventors: 王疆; 仵建国
Original assignee: Wenzhou Jigao Testing Instrument Co Ltd
Current assignee: Wenzhou Jigao Testing Instrument Co Ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-01-17
Anticipated expiration: 2029-05-27

Abstract

The utility model discloses a low temperature embrittlement performance testing machine mainly relates to the performance detection field. The testing machine comprises a machine body, wherein a testing cabin and a refrigerating cabin are arranged in the machine body and are communicated, a plurality of fixing plates are arranged in the testing cabin, a plurality of clamps are arranged on the fixing plates, a plurality of punches are arranged in the testing cabin, and the punches are matched with the clamps for use; anchor clamps include the fixing base, remove seat, first screw rod, and the fixing base setting is on the fixed plate, and first screw rod runs through one side of fixing base and with fixing base threaded connection, removes seat sliding connection in the fixing base, and the one end that first screw rod is located the fixing base rotates with removing the seat to be connected, removes the seat and is bilayer structure, removes to be equipped with the bolster between the bilayer structure of seat. The beneficial effects of the utility model reside in that: the clamping force between the clamp and the material to be tested can be buffered, the clamp is prevented from causing excessive influence on an experimental result, and the accuracy of the test result is ensured.

Description

Low-temperature embrittlement performance testing machine

Technical Field

The utility model relates to a capability test instrument field specifically is a low temperature embrittlement performance testing machine.

Background

The national soil range of China is wide, the climate difference between the south and the north is obvious, and the lowest temperature of the north can even reach about forty ℃ below zero, so that the low-temperature catalytic performance of some non-rigid plastics or rubber needs to be strictly tested when the non-rigid plastics or rubber is used in a low-temperature environment so as to meet the use requirement in the low-temperature environment; the existing low-temperature embrittlement performance test generally fixes a material to be tested by using a clamp, cools the material to be tested by using a heat transfer medium, then impacts the material to be tested by using an impact head, and observes the integrity of the material to be tested after a certain number of impacts.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low temperature embrittlement performance testing machine, it can cushion anchor clamps and the clamping-force between the material that awaits measuring, prevents that anchor clamps from causing too much influence to the experimental result, guarantees the accuracy of test result.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:

a low-temperature embrittlement performance testing machine comprises a machine body, wherein a testing cabin and a refrigerating cabin are arranged in the machine body and are communicated, a plurality of fixing plates are arranged in the testing cabin, a plurality of clamps are arranged on the fixing plates, and a plurality of punches are arranged in the testing cabin;

the fixture comprises a fixed seat, a movable seat and a first screw rod, wherein the fixed seat is arranged on a fixed plate, the first screw rod penetrates through one side of the fixed seat and is in threaded connection with the fixed seat, the movable seat is connected in the fixed seat in a sliding mode, one end, located in the fixed seat, of the first screw rod is connected with the movable seat in a rotating mode, the movable seat is of a double-layer structure, and a buffer piece is arranged between the double-layer structure of the movable seat.

Further, the movable seat is arc-shaped, a clamping plate is inserted into the front end of the movable seat in a splicing mode, the clamping plate is of a double-layer structure, and buffering parts are arranged between the double-side structures of the clamping plate.

Further, the bolster includes fixed column, sleeve pipe, buffer spring, stopper, sheathed tube one end slides and cup joints the outside at the fixed column, the stopper setting is located the intraductal one end of sleeve at the fixed column, the stopper cooperation sleeve pipe is used, buffer spring is located between stopper and the sleeve pipe.

Furthermore, a cross rod is connected in the test chamber in a sliding mode, a plurality of punches in the same horizontal position are fixed on the cross rod, and a driving device for driving the cross rod to slide is arranged in the test chamber.

Further, drive arrangement includes motor, slider, second screw rod, the top in the test chamber is fixed to the motor symmetry, the second screw rod is fixed on the output shaft of motor along the direction of height, the slider is two and fixes respectively at the both ends of horizontal pole, the second screw rod runs through the slider and with slider threaded connection.

Contrast prior art, the beneficial effects of the utility model reside in that:

the utility model discloses on the basis of current anchor clamps, set up anchor clamps into bilayer structure, and set up the bolster between bilayer anchor clamps, can make anchor clamps wait to detect the material at the centre gripping when, cushion anchor clamps to the clamping-force and the reaction force of waiting to detect the material, make it act on and can carry out effectual buffering waiting to detect when the material goes up, avoid treating the detected material and cause prestressing force, whether the messenger waits to detect the material and damages the impact force that is ascribed to the drift, make final testing result more accurate, guarantee the accuracy nature of test.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a cross-sectional view taken along the direction a in fig. 2 according to the present invention.

Fig. 4 is a right side view of the present invention.

Fig. 5 is a cross-sectional view taken along the direction B in fig. 4 according to the present invention.

Fig. 6 is a schematic cross-sectional view of the buffer member of the present invention.

Fig. 7 is a partially enlarged view of the portion C in fig. 3 according to the present invention.

Reference numerals shown in the drawings:

1. a body; 2. a test chamber; 3. a refrigeration compartment; 4. a fixing plate; 5. a clamp; 6. a punch; 7. a fixed seat; 8. a movable seat; 9. a first screw; 10. a buffer member; 11. a splint; 12. fixing a column; 13. a sleeve; 14. a buffer spring; 15. a limiting block; 16. a cross bar; 17. a motor; 18. a slider; 19. a second screw.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.

The utility model relates to a low temperature embrittlement performance testing machine, the major structure includes organism 1, organism 1 generally uses stainless steel to make, inside lining insulation material guarantees the heat insulating ability of inside, be equipped with test chamber 2, refrigeration cabin 3 in the organism 1, refrigeration cabin 3 is located test chamber 2 below, test chamber 2, refrigeration cabin 3 are linked together, be equipped with the baffle between test chamber 2, the refrigeration cabin 3, set up the air vent that supplies air conditioning to pass through on the baffle, set up refrigerating plant in the refrigeration cabin 3, use current compressor refrigeration mode all can, do not describe herein as the invention point again, be equipped with a plurality of fixed plates 4 in the test chamber 2, fixed plate 4 passes through the dead lever welding or bolt fastening on the lateral wall of test chamber 2, be equipped with a plurality of anchor clamps 5 on fixed plate 4, anchor clamps 5 are used for the centre gripping material to be detected, the test cabin 2 is internally provided with a plurality of punches 6, the punches 6 are only required to be used by common punches in the prior art, the punches 6 provide impact force for the material to be detected and are used for testing the low-temperature embrittlement performance of the material to be detected, the brittleness of the material to be detected is judged by observing the integrity after impact, the punches 6 are matched with the clamps 5, and each clamp 5 is matched with one punch 6 for use;

the fixture 5 comprises a fixed seat 7, a plurality of movable seats 8 and a first screw 9, wherein the fixed seat 7 is arranged on a fixed plate 4, the fixed seat 7 is welded or bolted on the fixed plate 4, the fixed seat 7 is C-shaped, a material to be detected is placed into the fixed seat 7 from an opening of the C-shaped structure, the first screw 9 penetrates through one side of the fixed seat 7 and is in threaded connection with the fixed seat 7, one end of the first screw 9 can move in the fixed seat 7 by rotating the first screw 9, the movable seats 8 are slidably connected in the fixed seat 7, specifically, sliding grooves can be formed in the side walls of the fixed seat 7, sliding pieces are arranged on the movable seats 8 and are slidably connected in the sliding grooves, so that the movable seats 8 can slide relative to the fixed seat 7, one end of the first screw 9, which is positioned in the fixed seat 7, is rotatably connected with the movable seats 8 through bearings, when rotating first screw rod 9, can make and remove seat 8 steady removal and can not take place to rotate like this, it is bilayer structure to remove seat 8, be equipped with bolster 10 between the bilayer structure of removing seat 8, bolster 10 is used for buffering the clamping-force between anchor clamps 5 and the material that awaits measuring, avoids the clamping-force to cause the damage to the material that awaits measuring, improves the accuracy of testing result.

Preferably, remove seat 8 and be the arc, the arc structure can carry out better fixed to the material that awaits measuring of curved surface, it has splint 11 to peg graft to remove the front end of seat 8, and concrete both sides at the front end of removing seat 8 set up the jack, splint 11 pegs graft in the jack, splint 11 is flat structure, can carry out better fixed to the material that awaits measuring of straight face, splint 11 is bilayer structure, be equipped with bolster 10 between splint 11's the two side structures, such structure makes anchor clamps 5's adaptability stronger, when being the arc by the detected material, dismantles splint 11 and utilizes the arc structure to fix, and the effect is better, utilizes splint 11 to carry out the centre gripping when being the straight face by the surface of detected material, and the effect of centre gripping is better.

Preferably, the buffer 10 includes a fixed column 12, a sleeve 13, a buffer spring 14, and a limit block 15, the fixed column 12 and the sleeve 13 are respectively fixed on one layer of a double-layer structure, one end of the sleeve 13 is slidably sleeved on the outer side of the fixed column 12, the pipe diameter of the inner ring of the sleeve 12 is larger than the pipe diameter of the fixed column 12, the limit block 15 is disposed at one end of the fixed column 12 located in the sleeve 13, the limit block 15 is used in cooperation with the sleeve 13, one end of the sleeve 12 close to the fixed column 12 is provided with a contraction inlet, the cross section of the contraction inlet is located between the fixed column 12 and the limit block 15, so that the sleeve 13 is limited when moving to one end of the fixed column 12, and the sleeve 13 is prevented from slipping off the limit column 12, the buffer spring 14 is located between the limit block 15 and the sleeve 13, when one layer of the double-layer structure receives extrusion, the extrusion force can be buffered by transmitting the extrusion force to the other layer through the buffer spring 14, so that the feedback reaction force is reduced, and the impact force of the material to be detected is reduced.

Preferably, the inside of the test chamber 2 is slidably connected with a cross rod 16, specifically, a slide rail is arranged on the side wall of the test chamber 2, the cross rod 16 is slidably connected onto the slide rail, the punches 6 on the same horizontal position are fixed on the cross rod 16 through bolts, a driving device for driving the cross rod 16 to slide is arranged in the test chamber 2, the cross rod 16 is driven to slide up and down through the driving device, the punches 6 on the cross rod are driven to impact the material to be detected on the fixture 5, the material to be detected can be detected simultaneously, and the detection efficiency is improved.

Preferably, the driving device comprises two same motors 17, a sliding block 18 and two second screw rods 19, the motors 17 are symmetrically welded or bolted to the top of the test chamber 2, the second screw rods 19 are fixed to the output shaft of the motors 17 through couplers in the height direction, the sliding blocks 18 are two and are respectively fixed to two ends of the cross rod 16, the second screw rods 19 penetrate through the sliding blocks 18 and are in threaded connection with the sliding blocks 18, the motors 17 drive the second screw rods 19 to rotate, so that the sliding blocks 18 on the second screw rods move up and down in the height direction, and further the cross rod 16 and the punch 6 on the cross rod are driven to move up and down, and the driving device is simpler in structure, and the punch 6 can move up and down in a reciprocating manner by controlling the positive and negative rotation of the motors 17 in the existing PLC and other manners, so that the repeated tests are.

The working principle is as follows: the utility model discloses set up anchor clamps 5 into bilayer structure, set up the bolster between anchor clamps 5's bilayer structure, when one side contact of anchor clamps 5 detects the material, can cushion anchor clamps 5 and wait to detect between the material clamping-force, produce less reaction force and act on and wait to detect the material, prevent to treat that the detecting material produces prestressing force, effectually prevent that anchor clamps 5 from treating the detecting material and causing the damage, make the integrity that detects the material depend on drift 6's impact force, improve the accuracy of test.

Claims

1. A low-temperature embrittlement performance testing machine is characterized in that: the test device comprises a machine body (1), wherein a test cabin (2) and a refrigeration cabin (3) are arranged in the machine body (1), the test cabin (2) and the refrigeration cabin (3) are communicated, a plurality of fixing plates (4) are arranged in the test cabin (2), a plurality of clamps (5) are arranged on the fixing plates (4), and a plurality of punches (6) are arranged in the test cabin (2);

anchor clamps (5) are including fixing base (7), removal seat (8), first screw rod (9), fixing base (7) set up on fixed plate (4), first screw rod (9) run through one side of fixing base (7) and with fixing base (7) threaded connection, remove seat (8) sliding connection in fixing base (7), the one end that first screw rod (9) are located fixing base (7) rotates with removal seat (8) to be connected, it is bilayer structure to remove seat (8), be equipped with bolster (10) between the bilayer structure of removing seat (8).

2. The low-temperature embrittlement performance testing machine of claim 1, wherein: remove seat (8) and be the arc, the front end of removing seat (8) is pegged graft and is had splint (11), splint (11) are bilayer structure, be equipped with bolster (10) between the bilateral structure of splint (11).

3. The low-temperature embrittlement performance testing machine of claim 1, wherein: the buffer piece (10) comprises a fixed column (12), a sleeve (13), a buffer spring (14) and a limiting block (15), one end of the sleeve (13) is sleeved on the outer side of the fixed column (12) in a sliding mode, the limiting block (15) is arranged at one end, located in the sleeve (13), of the fixed column (12), the limiting block (15) is matched with the sleeve (13) to be used, and the buffer spring (14) is located between the limiting block (15) and the sleeve (13).

4. The low-temperature embrittlement performance testing machine of claim 1, wherein: the test chamber (2) is connected with a cross rod (16) in a sliding mode, a plurality of punches (6) on the same horizontal position are all fixed on the cross rod (16), and a driving device for driving the cross rod (16) to slide is arranged in the test chamber (2).

5. The low-temperature embrittlement performance testing machine of claim 4, wherein: the driving device comprises a motor (17), a sliding block (18) and a second screw rod (19), the motor (17) is symmetrically fixed to the top of the test chamber (2), the second screw rod (19) is fixed to an output shaft of the motor (17) along the height direction, the two sliding blocks (18) are respectively fixed to two ends of a cross rod (16), and the second screw rod (19) penetrates through the sliding block (18) and is in threaded connection with the sliding block (18).